CN114234416B - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN114234416B
CN114234416B CN202111416026.0A CN202111416026A CN114234416B CN 114234416 B CN114234416 B CN 114234416B CN 202111416026 A CN202111416026 A CN 202111416026A CN 114234416 B CN114234416 B CN 114234416B
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equal
preset
less
temperature
wind speed
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CN114234416A (en
Inventor
陆建松
张飞
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202111416026.0A priority Critical patent/CN114234416B/en
Publication of CN114234416A publication Critical patent/CN114234416A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/30—Velocity
    • F24F2110/32—Velocity of the outside air

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof, and aims to solve the problem that the normal use of the existing air conditioner is affected due to false alarm and stop after the air conditioner is started up easily during refrigeration operation in winter. For this purpose, the air conditioner of the present invention is configured to be able to acquire an outdoor wind speed, and the control method of the air conditioner includes: acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode; determining the operation time length, the operation frequency and the corresponding temperature rise threshold value and current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature; controlling the compressor to run for a determined running time at a determined running frequency and obtaining an exhaust temperature rise value and a current value of the compressor; judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value and whether the current value is in the current range; if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, an alarm and/or a stop is sent out, otherwise, the air conditioner is controlled to normally operate, and false alarm and stop of the air conditioner are avoided.

Description

Air conditioner and control method thereof
Technical Field
The invention relates to the technical field of air conditioners, and particularly provides an air conditioner and a control method thereof.
Background
With the continuous improvement of the living standard of people, the air conditioner becomes a necessary household appliance in the life of people. In general, people cool in summer by means of an air conditioner to reduce the ambient temperature, thereby improving the comfort of the environment in which the user is located. In the daily use process, the condition that the exhaust temperature of the compressor is low due to insufficient refrigerant in the refrigerant circulation loop can occur, and the refrigerating efficiency of the air conditioner is low or even the air conditioner cannot refrigerate. In order to avoid the situation that the air conditioner still operates in a refrigerating mode under the condition that the exhaust temperature of the compressor is low, the refrigerating efficiency is low and even refrigeration cannot be achieved, the existing air conditioner detects the exhaust temperature of the compressor after a set period of starting-up operation in the refrigerating operation process, and gives an alarm and controls the air conditioner to stop when the exhaust temperature is smaller than a preset temperature. Through the arrangement, a user can contact after-sales maintenance personnel to maintain the air conditioner when the air conditioner alarms and stops, so that the condition that the air conditioner still operates when the exhaust temperature of the compressor is low is avoided.
In winter, central heating is usually performed in northern areas by using heating. In northeast, because the outdoor environment temperature is lower, the heat dissipation of the heat supply pipeline is larger, so that the indoor temperature of all users can reach the required heating temperature, the heat supply is usually larger, the indoor environment temperature of most users positioned on the upstream of the heat supply pipeline can reach high, and the users can feel uncomfortable indoors. Partial users can choose to open the window to avoid the overhigh indoor temperature, so that the indoor position temperature close to the window is lower, the position temperature close to the heating radiator is higher, the indoor environment temperature is uneven, and the indoor comfort level is still lower. In order to improve the indoor comfort, people choose to use an air conditioner to cool the indoor. However, after the compressor is started, the lower outdoor temperature can cause that the exhaust temperature of the compressor cannot reach the preset temperature within the set time period to give an alarm and stop, so that the normal use of a user is influenced.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems that the normal use is affected due to false alarm and stop after the starting up when the existing air conditioner is in refrigeration operation in winter.
In a first aspect, the present invention provides a control method of an air conditioner configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration and the operation frequency of a compressor of the air conditioner and a corresponding temperature rise threshold value and current range according to the outdoor wind speed and the outdoor temperature;
controlling the compressor to run for the running time at the running frequency and obtaining an exhaust temperature rise value and a current value of the compressor;
judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not and whether the current value is in the current range or not;
And if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
In the above preferred technical solution of the control method, the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold and the current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
if the outdoor temperature is smaller than a first preset temperature and is greater than or equal to a second preset temperature, and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a first preset duration, a first preset frequency, a first temperature rise threshold value and a first preset current range;
If the outdoor temperature is smaller than the first preset temperature and is greater than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a second preset duration, a second preset frequency, a second temperature rise threshold value and a second preset current range;
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to-2 ℃ and less than or equal to 2 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 52Hz and less than or equal to 48Hz, the second preset frequency is less than or equal to 57Hz and less than or equal to 53Hz, 17min is less than or equal to the first preset duration is less than or equal to 23min,27min is less than or equal to the second preset duration is less than or equal to 33min, the first temperature rise threshold is less than or equal to 49 ℃ and less than or equal to 51 ℃, and the second temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃.
In the above preferred technical solution of the control method, the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold and the current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to a third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a third preset duration, a third preset frequency, a third temperature rise threshold value and a third preset current range;
if the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are a fourth preset duration, a fourth preset frequency, a fourth temperature rise threshold value and a fourth preset current range respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is less than or equal to 57Hz, the 58Hz is less than or equal to the fourth preset frequency is less than or equal to 62Hz,27min is less than or equal to the third preset time length is less than or equal to 33min,37min is less than or equal to the fourth preset time length is less than or equal to 43min, the third temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃ and the fourth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃.
In the above preferred technical solution of the control method, the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold and the current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a fifth preset duration, a fifth preset frequency, a fifth temperature rise threshold value and a fifth preset current range;
if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a sixth preset duration, a sixth preset frequency, a sixth temperature rise threshold value and a sixth preset current range;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz,32min and less than or equal to the fifth preset duration is less than or equal to 38min,42min and less than or equal to the sixth preset duration is less than or equal to 48min, the fifth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold is less than or equal to 34 ℃ and less than or equal to 36 ℃.
In the above preferred technical solution of the control method, the air conditioner is an air conditioner capable of connecting to a network, and the step of "obtaining the outdoor wind speed" specifically includes:
and acquiring the outdoor wind speed through a network.
According to the technical scheme, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor air speed are obtained, the operation time length, the operation frequency and the corresponding temperature rise threshold value and current range of the compressor of the air conditioner are determined according to the outdoor air speed and the outdoor temperature, the compressor is controlled to operate the determined operation time length at the determined operation frequency, the exhaust temperature rise value and the current value of the compressor are obtained, whether the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is in the current range or not is judged, if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, an alarm and/or a shutdown is sent out, otherwise, the air conditioner is controlled to operate normally, the situation that whether the air conditioner is in a low temperature influence is caused by a mode that whether the air conditioner is in a refrigerant shortage is judged only according to a preset fixed exhaust temperature, and the air conditioner is in a selective alarm shutdown mode is caused is avoided, whether the refrigerant shortage is caused can be judged more accurately, so that whether the air conditioner is in the normal operation refrigeration in winter is guaranteed under the condition that the refrigerant shortage is caused, and a user timely finds out the fault of the air conditioner and maintains the air conditioner under the condition that the refrigerant shortage.
In a second aspect, the present invention also provides a control method of an air conditioner configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration, the operation frequency and the corresponding temperature rise threshold value of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;
controlling the compressor to run for the running time at the running frequency and obtaining the exhaust temperature rise value of the compressor;
Judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not;
And if the exhaust temperature rise value is smaller than the temperature rise threshold value, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
In the above preferred technical solution of the control method, the step of determining the operation duration, the operation frequency and the corresponding temperature rise threshold of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
if the outdoor temperature is smaller than the first preset temperature and is larger than or equal to the second preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a first preset duration, a first preset frequency and a first temperature rise threshold;
if the outdoor temperature is smaller than the first preset temperature and larger than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a second preset duration, a second preset frequency and a second temperature rise threshold;
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to-2 ℃ and less than or equal to 2 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 52Hz, the 53Hz is less than or equal to the second preset frequency is less than or equal to 57Hz,17min is less than or equal to the first preset duration is less than or equal to 23min,27min is less than or equal to the second preset duration is less than or equal to 33min, the first temperature rise threshold is less than or equal to 49 ℃ and less than or equal to 51 ℃, and the second temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃.
And/or
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to the third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a third preset duration, a third preset frequency and a third temperature rise threshold;
If the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are a fourth preset duration, a fourth preset frequency and a fourth temperature rise threshold respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is less than or equal to 57Hz, the 58Hz is less than or equal to the fourth preset frequency is less than or equal to 62Hz,27min is less than or equal to the third preset time length is less than or equal to 33min,37min is less than or equal to the fourth preset time length is less than or equal to 43min, the third temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃ and the fourth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃.
And/or
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a fifth preset duration, a fifth preset frequency and a fifth temperature rise threshold;
if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a sixth preset duration, a sixth preset frequency and a sixth temperature rise threshold;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz,32min and less than or equal to the fifth preset duration is less than or equal to 38min,42min and less than or equal to the sixth preset duration is less than or equal to 48min, the fifth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold is less than or equal to 34 ℃ and less than or equal to 36 ℃.
According to the technical scheme, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor air speed are obtained, the operation time length, the operation frequency and the corresponding temperature rise threshold value of the compressor of the air conditioner are determined according to the outdoor air speed and the outdoor temperature, the compressor is controlled to operate at the determined operation frequency for determining the operation time length and obtaining the exhaust temperature rise value of the compressor, whether the exhaust temperature rise value is smaller than the temperature rise threshold value is judged, if the exhaust temperature rise value is smaller than the temperature rise threshold value, an alarm and/or a machine halt are sent out, otherwise, the air conditioner is controlled to normally operate, the situation that the air conditioner is influenced by low temperature in a mode that whether the refrigerating operation is carried out in winter or not is judged according to the preset fixed exhaust temperature, and the error alarm and the machine halt operation are caused is avoided, and whether the refrigerating operation is carried out is wrong is judged more accurately, so that a user can find out the refrigerating operation of the air conditioner in normal operation in winter under the condition that the refrigerating operation of the refrigerating operation is carried out under the condition that the refrigerating operation is not lack of the refrigerating medium, and the air conditioner is maintained under the condition that the refrigerating operation is lack of the refrigerating condition.
In a third aspect, the present invention also provides a control method of an air conditioner configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration, the operation frequency and the corresponding current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;
Controlling the compressor to run for the running time at the running frequency and obtaining a current value of the compressor;
judging whether the current value is in the current range or not;
and if the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
In the above preferred technical solution of the control method, the step of determining the operation duration, the operation frequency and the corresponding current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than the first preset temperature and is larger than or equal to the second preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a first preset duration, a first preset frequency and a first preset current range;
If the outdoor temperature is smaller than the first preset temperature and is greater than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a second preset duration, a second preset frequency and a second preset current range;
Wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to minus 2 ℃ and less than or equal to 2 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 3.4m/s, the first preset frequency is more than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is more than or equal to 53Hz and less than or equal to 57Hz,17min is more than or equal to the first preset duration is less than or equal to 23min, and 27min is more than or equal to 33min;
And/or
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to the third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a third preset duration, a third preset frequency and a third preset current range;
if the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than a preset wind speed, determining that the operation duration, the operation frequency and the current range are a fourth preset duration, a fourth preset frequency and a fourth preset current range respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 3.4m/s, the third preset frequency is less than or equal to 53Hz and less than or equal to 57Hz, the fourth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz,27min is less than or equal to the third preset duration is less than or equal to 33min, and 37min is less than or equal to 43min;
And/or
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a fifth preset duration, a fifth preset frequency and a fifth preset current range;
If the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a sixth preset duration, a sixth preset frequency and a sixth preset current range;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz, the 32min and less than or equal to the fifth preset duration is less than or equal to 38min, and the 42min and less than or equal to 48min.
According to the technical scheme, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor air speed are obtained, the operation time length, the operation frequency and the corresponding current range of the compressor of the air conditioner are determined according to the outdoor air speed and the outdoor temperature, the compressor is controlled to operate at the determined operation frequency for determining the operation time length and obtaining the current value of the compressor, whether the current value is in the current range is judged, if the current value is not in the current range, an alarm and/or a shutdown is sent out, otherwise, the air conditioner is controlled to normally operate, the situation that whether the air conditioner is influenced by low temperature in a mode that whether the air conditioner is in a refrigerating operation in winter is in a refrigerant shortage or not is judged only according to a preset fixed exhaust temperature and is in a selective alarm and shutdown mode is influenced by low temperature is avoided, whether the air conditioner is in a refrigerant shortage or not can be judged more accurately, so that a user can find out the fault of the air conditioner in a refrigerant shortage condition in normal operation in winter and maintain the air conditioner in time.
In a fourth aspect, the present invention also provides an air conditioner, including: a memory; a processor; and a computer program stored in the memory and configured to be executed by the processor to implement the control method of the air conditioner in any one of the above-mentioned aspects.
It should be noted that the air conditioner has all the technical effects of the control method, and is not described herein.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a main step diagram of a control method of an air conditioner according to a first embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner according to a first embodiment of the present invention;
fig. 3 is a main step diagram of a control method of an air conditioner according to a second embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner according to a second embodiment of the present invention;
fig. 5 is a main step diagram of a control method of an air conditioner according to a third embodiment of the present invention;
fig. 6 is a flowchart of a control method of an air conditioner according to a third embodiment of the present invention.
Detailed Description
First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, the control method of the air conditioner is applicable to wall-mounted air conditioners, cabinet air conditioners, single-cooled air conditioners, cold-warm dual-purpose air conditioners and the like. Such adjustments to the specific type of application object should not be construed as limiting the invention and should be construed as being within the scope of the invention.
It should be noted that in the description of the present invention, the terms "first," second, "" third, "" fourth, "" fifth, "and sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
A control method of an air conditioner according to a first embodiment of the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a main step diagram of a control method of an air conditioner according to a first embodiment of the present invention, and fig. 2 is a flowchart of a control method of an air conditioner according to a first embodiment of the present invention.
Based on the problem that the normal use is affected due to the fact that the existing air conditioner is easy to alarm and stop after being started up in the refrigerating operation in winter in the background technology, the invention provides a control method of the air conditioner.
In a first embodiment of the invention, the air conditioner of the invention is arranged to be able to obtain outdoor wind speed, for example the air conditioner is a network connectable air conditioner. As shown in fig. 1, the control method of the air conditioner of the present invention mainly includes the following steps:
Step S100, acquiring the outdoor temperature and the outdoor wind speed after the air conditioner enters a refrigeration mode.
An outdoor portion of the air conditioner is provided with an outdoor temperature sensor that detects an outdoor ambient temperature. When the air conditioner enters a refrigeration mode according to a user instruction, the controller acquires outdoor environment temperature through an outdoor temperature sensor, and acquires local weather information through a connected network, so as to acquire outdoor wind speed.
Step 200, determining the operation duration, the operation frequency and the corresponding temperature rise threshold value and current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature.
And step S300, controlling the compressor to operate at the determined operation frequency for the determined operation time and acquiring an exhaust temperature rise value and a current value of the compressor. The exhaust gas temperature rise value refers to a difference between the exhaust gas temperature after the compressor is operated at the determined operation frequency for the determined operation period and the exhaust gas temperature when the compressor starts to operate.
And step 400, judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value and whether the current value is in the current range.
And S500, if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
Specifically, as shown in fig. 2, the control method of the air conditioner of the present invention includes the steps of:
Step S110, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor wind speed are obtained. After step S110, the process goes to step S210, step S220, step S230, step S240, step S250, and step S260, respectively.
Step S210, the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature, and the outdoor wind speed is less than the preset wind speed, so that the first preset duration, the first preset frequency, the first temperature rise threshold value and the first preset current range are determined. After step S210, the process goes to step S310.
Step S220, if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is more than or equal to the preset wind speed, determining the second preset duration, the second preset frequency, the second temperature rise threshold value and the second preset current range. After step S220, the process goes to step S320.
And S230, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is less than the preset wind speed is a third preset duration, a third preset frequency, a third temperature rise threshold and a third preset current range. After step S230, the process goes to step S330.
And S240, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is more than or equal to the preset wind speed is a fourth preset duration, a fourth preset frequency, a fourth temperature rise threshold value and a fourth preset current range. After step S240, the process goes to step S340.
Step S250, if the outdoor temperature is less than the third preset temperature and the outdoor wind speed is less than the preset wind speed, determining a fifth preset duration, a fifth preset frequency, a fifth temperature rise threshold and a fifth preset current range. After step S250, the process goes to step S350.
Step S260, if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is larger than or equal to the preset wind speed, determining a sixth preset duration, a sixth preset frequency, a sixth temperature rise threshold and a sixth preset current range. After step S260, the process goes to step S360.
Step S310, controlling the compressor to run for a first preset time period at a first preset frequency and acquiring an exhaust temperature rise value and a current value. After step S310, the process goes to step S410.
Step S320, controlling the compressor to operate at a second preset frequency for a second preset time period and obtaining an exhaust temperature rise value and a current value. After step S320, the process goes to step S420.
Step S330, controlling the compressor to run for a third preset time period at a third preset frequency and obtaining the exhaust temperature rise value and the current value. After step S330, the process goes to step S430.
Step S340, controlling the compressor to run for a fourth preset time period at a fourth preset frequency and obtaining an exhaust temperature rise value and a current value. After step S340, the process goes to step S440.
And step 350, controlling the compressor to operate at a fifth preset frequency for a fifth preset time period and acquiring an exhaust temperature rise value and a current value. After step S350, the process goes to step S450.
Step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time period and obtaining an exhaust temperature rise value and a current value. After step S360, the process goes to step S460.
Step S410, the exhaust temperature rise value is less than the first temperature rise threshold and the current value is not in the first preset current range. If the condition in step S410 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S420, the exhaust temperature rise value is less than the second temperature rise threshold value, and the current value is not in the second preset current range. If the condition in step S420 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S430, the exhaust temperature rise value is less than the third temperature rise threshold and the current value is not in the third preset current range. If the condition in step S430 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
Step S440, the exhaust temperature rise value is less than the fourth temperature rise threshold and the current value is not in the fourth preset current range. If the condition in step S440 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
And S450, the exhaust temperature rise value is less than the fifth temperature rise threshold value, and the current value is not in a fifth preset current range. If the condition in step S450 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S460, the exhaust temperature rise value is less than the sixth temperature rise threshold value, and the current value is not in the sixth preset current range. If the condition in step S460 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S510, alarm is sent out and the machine is stopped.
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to 2 ℃ below zero, the third preset temperature is less than or equal to-8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 3.4m/s, the first preset frequency is less than or equal to 52Hz, the second preset frequency is less than or equal to 53Hz, the third preset frequency is less than or equal to 57Hz, the fourth preset frequency is less than or equal to 58Hz, the fourth preset frequency is less than or equal to 62Hz, the fifth preset frequency is less than or equal to 58Hz, the fifth preset frequency is less than or equal to 62Hz, the sixth preset frequency is less than or equal to 63Hz, the first preset time is less than or equal to 67 min, the 17min is less than or equal to 23min, the second preset time is less than or equal to 33min, the third preset time is less than or equal to 37min, the fourth preset time is less than or equal to 43min, and less than or equal to 32min, the fifth preset time is less than or equal to 38min, the sixth preset time is less than or equal to 49 ℃ and less than or equal to 49 ℃, the second temperature rise threshold value is more than or equal to 44 ℃ and less than or equal to 46 ℃, the third temperature rise threshold value is more than or equal to 44 ℃ and less than or equal to 46 ℃, the fourth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, the fifth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold value is more than or equal to 34 ℃ and less than or equal to 36 ℃. For example, the first preset temperature is 10 ℃, the second preset temperature is 0 ℃, the third preset temperature is-10 ℃, the preset wind speed is 4m/s, the first preset frequency is 50Hz, the second preset frequency is 55Hz, the third preset frequency is 55Hz, the fourth preset frequency is 60Hz, the fifth preset frequency is 60Hz, the sixth preset frequency is 65Hz, the first preset time period is 20min, the second preset time period is 30min, the third preset time period is 30min, the fourth preset time period is 40min, the fifth preset time period is 35min, the sixth preset time period is 45min, the first temperature rise threshold is 50 ℃, the second temperature rise threshold is 45 ℃, the third temperature rise threshold is 45 ℃, the fourth temperature rise threshold is 40 ℃, the fifth temperature rise threshold is 40 ℃, and the sixth temperature rise threshold is 35 ℃.
Through the arrangement, the situation that whether the air conditioner is in refrigeration operation in winter only judges whether the refrigerant is in shortage according to the preset fixed exhaust temperature and the mode of selectively alarming and stopping is influenced by low temperature to generate false alarm and false stopping operation is avoided, whether the refrigerant is in shortage can be judged more accurately, so that normal operation refrigeration of the air conditioner in winter is ensured under the condition that the refrigerant is not in shortage, and a user can timely find out faults of the air conditioner and maintain the faults under the condition that the refrigerant is in shortage. The operation time length, the operation frequency and the corresponding temperature rise threshold value and the current range of the compressor of the air conditioner are determined through the wind speed and the outdoor temperature, and the influence of the wind speed and the outdoor temperature on the temperature rise of the exhaust temperature is considered, so that whether the air conditioner lacks a refrigerant can be accurately judged. Through the setting corresponding to the preset frequency and the preset duration, whether the detected air conditioner lacks a refrigerant or not can be ensured, and the problems of energy waste caused by overlong detection time and overhigh frequency can be avoided. The exhaust temperature and the current value are used for judging whether the refrigerant is insufficient or not, and whether the refrigerant is insufficient or not can still be judged under the condition that the outdoor temperature sensor fails.
It should be noted that, the controller obtains local weather information through the connected network to obtain outdoor wind speed is only a specific setting mode, and in practical application, the controller can adjust the outdoor weather information, for example, an anemometer can also be arranged at the outdoor part of the air conditioner, and the anemometer is connected with the controller of the air conditioner, so that the controller can obtain the outdoor wind speed through the anemometer. In addition, in the step S510, only the alarm may be issued or only the shutdown may be performed. In addition, the first preset current range, the second preset current range, the third preset current range, the fourth preset current range, the fifth preset current range and the sixth preset current range of the air conditioner with different specifications are different, and the air conditioner is limited according to practical situations, and is not particularly limited herein.
Next, a control method of an air conditioner according to a second embodiment of the present invention will be described with reference to fig. 3 and 4. Fig. 3 is a main step diagram of a control method of an air conditioner according to a second embodiment of the present invention, and fig. 4 is a flowchart of a control method of an air conditioner according to a second embodiment of the present invention.
In a second embodiment of the invention, the air conditioner of the invention is arranged to be able to obtain outdoor wind speed, for example the air conditioner is a network connectable air conditioner. As shown in fig. 3, the control method of the air conditioner of the present invention mainly includes the following steps:
Step S100, acquiring the outdoor temperature and the outdoor wind speed after the air conditioner enters a refrigeration mode.
Step 200, determining the operation duration, the operation frequency and the corresponding temperature rise threshold of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature.
And step S300, controlling the compressor to run for a determined running time at the determined running frequency and acquiring an exhaust temperature rise value of the compressor.
Step S400, judging whether the exhaust temperature rise value is smaller than a temperature rise threshold value.
And S500, if the exhaust temperature rise value is smaller than the temperature rise threshold value, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
Specifically, as shown in fig. 4, the control method of the air conditioner of the present invention includes the steps of:
Step S110, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor wind speed are obtained. After step S110, the process goes to step S210, step S220, step S230, step S240, step S250, and step S260, respectively.
Step S210, if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is less than the preset wind speed, determining the first preset duration, the first preset frequency and the first temperature rise threshold value. After step S210, the process goes to step S310.
Step S220, if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is more than or equal to the preset wind speed, determining the second preset duration, the second preset frequency and the second temperature rise threshold value. After step S220, the process goes to step S320.
And S230, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is less than the preset wind speed is the third preset duration, the third preset frequency and the third temperature rise threshold value. After step S230, the process goes to step S330.
And S240, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is more than or equal to the preset wind speed is a fourth preset duration, a fourth preset frequency and a fourth temperature rise threshold value. After step S240, the process goes to step S340.
Step S250, if the outdoor temperature is less than the third preset temperature and the outdoor wind speed is less than the preset wind speed, determining a fifth preset duration, a fifth preset frequency and a fifth temperature rise threshold. After step S250, the process goes to step S350.
Step S260, if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is larger than or equal to the preset wind speed, determining a sixth preset duration, a sixth preset frequency and a sixth temperature rise threshold. After step S260, the process goes to step S360.
Step S310, controlling the compressor to run for a first preset time period at a first preset frequency and obtaining an exhaust temperature rise value. After step S310, the process goes to step S410.
Step S320, controlling the compressor to run for a second preset time period at a second preset frequency and obtaining the exhaust temperature rise value. After step S320, the process goes to step S420.
Step S330, controlling the compressor to run for a third preset time period at a third preset frequency and obtaining the exhaust temperature rise value. After step S330, the process goes to step S430.
Step S340, controlling the compressor to run for a fourth preset time period at a fourth preset frequency and obtaining an exhaust temperature rise value. After step S340, the process goes to step S440.
And step 350, controlling the compressor to run for a fifth preset time period at a fifth preset frequency and acquiring an exhaust temperature rise value. After step S350, the process goes to step S450.
Step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time period and obtaining an exhaust temperature rise value. After step S360, the process goes to step S460.
Step S410, the exhaust gas temperature rise value is less than the first temperature rise threshold value. If the condition in step S410 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S420, the exhaust temperature rise value is smaller than the second temperature rise threshold value. If the condition in step S420 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S430, the exhaust gas temperature rise value is less than the third temperature rise threshold value. If the condition in step S430 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
Step S440, the exhaust temperature rise value is less than the fourth temperature rise threshold value. If the condition in step S440 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
Step S450, the exhaust temperature rise value is less than the fifth temperature rise threshold value. If the condition in step S450 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S460, the exhaust temperature rise value is smaller than the sixth temperature rise threshold value. If the condition in step S460 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S510, alarm is sent out and the machine is stopped.
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to 2 ℃ below zero, the third preset temperature is less than or equal to-8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 3.4m/s, the first preset frequency is less than or equal to 52Hz, the second preset frequency is less than or equal to 53Hz, the third preset frequency is less than or equal to 57Hz, the fourth preset frequency is less than or equal to 58Hz, the fourth preset frequency is less than or equal to 62Hz, the fifth preset frequency is less than or equal to 58Hz, the fifth preset frequency is less than or equal to 62Hz, the sixth preset frequency is less than or equal to 63Hz, the first preset time is less than or equal to 67 min, the 17min is less than or equal to 23min, the second preset time is less than or equal to 33min, the third preset time is less than or equal to 37min, the fourth preset time is less than or equal to 43min, and less than or equal to 32min, the fifth preset time is less than or equal to 38min, the sixth preset time is less than or equal to 49 ℃ and less than or equal to 49 ℃, the second temperature rise threshold value is more than or equal to 44 ℃ and less than or equal to 46 ℃, the third temperature rise threshold value is more than or equal to 44 ℃ and less than or equal to 46 ℃, the fourth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, the fifth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold value is more than or equal to 34 ℃ and less than or equal to 36 ℃.
Through the arrangement, the situation that whether the air conditioner is in refrigerating operation in winter only judges whether the refrigerant is lack according to the preset fixed exhaust temperature and the mode of selectively alarming and stopping is influenced by low temperature to generate false alarm and false stopping operation can be avoided, whether the refrigerant is lack can be judged more accurately, so that the air conditioner can be guaranteed to be in normal operation refrigeration in winter under the condition of no refrigerant lack, and a user can timely find out the fault of the air conditioner and maintain the fault under the condition of no refrigerant.
Next, a control method of an air conditioner according to a third embodiment of the present invention will be described with reference to fig. 5 and 6. Fig. 5 is a main step diagram of a control method of an air conditioner according to a third embodiment of the present invention, and fig. 6 is a flowchart of a control method of an air conditioner according to a third embodiment of the present invention.
In a third embodiment of the present invention, the air conditioner of the present invention is configured to be able to acquire outdoor wind speed, for example, the air conditioner is a network-connectable air conditioner. As shown in fig. 5, the control method of the air conditioner of the present invention mainly includes the following steps:
Step S100, acquiring the outdoor temperature and the outdoor wind speed after the air conditioner enters a refrigeration mode.
Step 200, determining the operation duration, the operation frequency and the corresponding current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature.
And step S300, controlling the compressor to run for a determined running time at the determined running frequency and acquiring a current value of the compressor.
Step S400, judging whether the current value is in the current range.
And S500, if the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
Specifically, as shown in fig. 6, the control method of the air conditioner of the present invention includes the steps of:
Step S110, after the air conditioner enters a refrigeration mode, the outdoor temperature and the outdoor wind speed are obtained. After step S110, the process goes to step S210, step S220, step S230, step S240, step S250, and step S260, respectively.
Step S210, the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature, and the outdoor wind speed is less than the preset wind speed, so that the first preset duration, the first preset frequency and the first preset current range are determined. After step S210, the process goes to step S310.
Step S220, if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is more than or equal to the preset wind speed, determining the second preset duration, the second preset frequency and the second preset current range. After step S220, the process goes to step S320.
And S230, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is less than the preset wind speed is a third preset duration, a third preset frequency and a third preset current range. After step S230, the process goes to step S330.
And S240, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining that the outdoor wind speed is more than or equal to the preset wind speed is a fourth preset duration, a fourth preset frequency and a fourth preset current range. After step S240, the process goes to step S340.
Step S250, if the outdoor temperature is less than the third preset temperature and the outdoor wind speed is less than the preset wind speed, determining a fifth preset duration, a fifth preset frequency and a fifth preset current range. After step S250, the process goes to step S350.
Step S260, if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is larger than or equal to the preset wind speed, determining a sixth preset duration, a sixth preset frequency and a sixth preset current range. After step S260, the process goes to step S360.
Step S310, controlling the compressor to run for a first preset time period at a first preset frequency and obtaining a current value. After step S310, the process goes to step S410.
Step S320, controlling the compressor to run for a second preset time period at a second preset frequency and obtaining a current value. After step S320, the process goes to step S420.
Step S330, controlling the compressor to run for a third preset time period at a third preset frequency and obtaining a current value. After step S330, the process goes to step S430.
Step S340, controlling the compressor to run for a fourth preset time period at a fourth preset frequency and obtaining a current value. After step S340, the process goes to step S440.
And step 350, controlling the compressor to run for a fifth preset time period at a fifth preset frequency and acquiring a current value. After step S350, the process goes to step S450.
Step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time period and obtaining a current value. After step S360, the process goes to step S460.
In step S410, the current value is not in the first preset current range. If the condition in step S410 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S420, the current value is not in the second preset current range. If the condition in step S420 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S430, the current value is not in the third preset current range. If the condition in step S430 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
Step S440, the current value is not in the fourth preset current range. If the condition in step S440 is satisfied, the process goes to step S510, otherwise the air conditioner is controlled to operate normally (not shown).
Step S450, the current value is not in the fifth preset current range. If the condition in step S450 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S460, the current value is not in the sixth preset current range. If the condition in step S460 is satisfied, the process goes to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).
Step S510, alarm is sent out and the machine is stopped.
Wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to-2 ℃ and less than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is more than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is more than or equal to 53Hz and less than or equal to 57Hz, the third preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the fifth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is more than or equal to 63Hz and less than or equal to 67Hz, the first preset time is less than or equal to 17min and less than or equal to 23min, the second preset time is less than or equal to 27min and less than or equal to 33min, the third preset time is less than or equal to 37min and less than or equal to fourth preset time is less than or equal to 43min and 32min and less than or equal to the fifth preset time is less than or equal to the third preset time is less than or equal to third to the third preset time.
Through the arrangement, the situation that whether the air conditioner is in refrigerating operation in winter only judges whether the refrigerant is lack according to the preset fixed exhaust temperature and the mode of selectively alarming and stopping is influenced by low temperature to generate false alarm and false stopping operation can be avoided, whether the refrigerant is lack can be judged more accurately, so that the air conditioner can be guaranteed to be in normal operation refrigeration in winter under the condition of no refrigerant lack, and a user can timely find out the fault of the air conditioner and maintain the fault under the condition of no refrigerant.
In another aspect, the present invention also provides an air conditioner, including: the air conditioner control device comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory and is configured to be executed by the processor to realize the control method of the air conditioner according to any one of the embodiments. Wherein the memory and the processor are arranged in the controller. When the air conditioner is needed, the air conditioner can be an integrated air conditioner, a split air conditioner, a single-cooling air conditioner, a dual-purpose air conditioner for cooling and heating or other suitable air conditioners and the like.
It should be noted that, the memory in the above embodiments includes, but is not limited to, a random access memory, a flash memory, a read-only memory, a programmable read-only memory, a volatile memory, a nonvolatile memory, a serial memory, a parallel memory, a register, and the like, and the processor includes, but is not limited to, a CPLD/FPGA, DSP, ARM processor, a MIPS processor, and the like.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (10)

1. A control method of an air conditioner, the air conditioner being configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration and the operation frequency of a compressor of the air conditioner and a corresponding temperature rise threshold value and current range according to the outdoor wind speed and the outdoor temperature;
controlling the compressor to run for the running time at the running frequency and obtaining an exhaust temperature rise value and a current value of the compressor;
judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not and whether the current value is in the current range or not;
And if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
2. The control method according to claim 1, wherein the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold value and current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
if the outdoor temperature is smaller than a first preset temperature and is greater than or equal to a second preset temperature, and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a first preset duration, a first preset frequency, a first temperature rise threshold value and a first preset current range;
If the outdoor temperature is smaller than the first preset temperature and is greater than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a second preset duration, a second preset frequency, a second temperature rise threshold value and a second preset current range;
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to-2 ℃ and less than or equal to 2 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 52Hz and less than or equal to 48Hz, the second preset frequency is less than or equal to 57Hz and less than or equal to 53Hz, 17min is less than or equal to the first preset duration is less than or equal to 23min,27min is less than or equal to the second preset duration is less than or equal to 33min, the first temperature rise threshold is less than or equal to 49 ℃ and less than or equal to 51 ℃, and the second temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃.
3. The control method according to claim 1, wherein the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold value and current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to a third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a third preset duration, a third preset frequency, a third temperature rise threshold value and a third preset current range;
if the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are a fourth preset duration, a fourth preset frequency, a fourth temperature rise threshold value and a fourth preset current range respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is less than or equal to 57Hz, the 58Hz is less than or equal to the fourth preset frequency is less than or equal to 62Hz,27min is less than or equal to the third preset time length is less than or equal to 33min,37min is less than or equal to the fourth preset time length is less than or equal to 43min, the third temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃ and the fourth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃.
4. The control method according to claim 1, wherein the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold value and current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a fifth preset duration, a fifth preset frequency, a fifth temperature rise threshold value and a fifth preset current range;
if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency, the temperature rise threshold value and the current range are respectively a sixth preset duration, a sixth preset frequency, a sixth temperature rise threshold value and a sixth preset current range;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz,32min and less than or equal to the fifth preset duration is less than or equal to 38min,42min and less than or equal to the sixth preset duration is less than or equal to 48min, the fifth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold is less than or equal to 34 ℃ and less than or equal to 36 ℃.
5. The control method according to any one of claims 1 to 4, characterized in that the air conditioner is a network-connectable air conditioner, and the step of "obtaining the outdoor wind speed" specifically includes:
and acquiring the outdoor wind speed through a network.
6. A control method of an air conditioner, the air conditioner being configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration, the operation frequency and the corresponding temperature rise threshold value of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;
controlling the compressor to run for the running time at the running frequency and obtaining the exhaust temperature rise value of the compressor;
Judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not;
And if the exhaust temperature rise value is smaller than the temperature rise threshold value, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
7. The control method according to claim 6, wherein the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold value of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
if the outdoor temperature is smaller than the first preset temperature and is larger than or equal to the second preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a first preset duration, a first preset frequency and a first temperature rise threshold;
if the outdoor temperature is smaller than the first preset temperature and larger than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a second preset duration, a second preset frequency and a second temperature rise threshold;
Wherein the first preset temperature is less than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is less than or equal to-2 ℃ and less than or equal to 2 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 52Hz, the 53Hz is less than or equal to the second preset frequency is less than or equal to 57Hz,17min is less than or equal to the first preset duration is less than or equal to 23min,27min is less than or equal to the second preset duration is less than or equal to 33min, the first temperature rise threshold is less than or equal to 49 ℃ and less than or equal to 51 ℃, and the second temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃.
And/or
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to the third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a third preset duration, a third preset frequency and a third temperature rise threshold;
If the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are a fourth preset duration, a fourth preset frequency and a fourth temperature rise threshold respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is less than or equal to 57Hz, the 58Hz is less than or equal to the fourth preset frequency is less than or equal to 62Hz,27min is less than or equal to the third preset time length is less than or equal to 33min,37min is less than or equal to the fourth preset time length is less than or equal to 43min, the third temperature rise threshold is less than or equal to 44 ℃ and less than or equal to 46 ℃ and the fourth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃.
And/or
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a fifth preset duration, a fifth preset frequency and a fifth temperature rise threshold;
if the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the temperature rise threshold are respectively a sixth preset duration, a sixth preset frequency and a sixth temperature rise threshold;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz,32min and less than or equal to the fifth preset duration is less than or equal to 38min,42min and less than or equal to the sixth preset duration is less than or equal to 48min, the fifth temperature rise threshold is less than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold is less than or equal to 34 ℃ and less than or equal to 36 ℃.
8. A control method of an air conditioner, the air conditioner being configured to be able to acquire an outdoor wind speed, the control method comprising:
Acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;
Determining the operation duration, the operation frequency and the corresponding current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;
Controlling the compressor to run for the running time at the running frequency and obtaining a current value of the compressor;
judging whether the current value is in the current range or not;
and if the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.
9. The control method according to claim 8, wherein the step of determining the operation duration, the operation frequency, and the corresponding current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:
If the outdoor temperature is smaller than the first preset temperature and is larger than or equal to the second preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a first preset duration, a first preset frequency and a first preset current range;
If the outdoor temperature is smaller than the first preset temperature and is greater than or equal to the second preset temperature, and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a second preset duration, a second preset frequency and a second preset current range;
Wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to minus 2 ℃ and less than or equal to 2 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 3.4m/s, the first preset frequency is more than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is more than or equal to 53Hz and less than or equal to 57Hz,17min is more than or equal to the first preset duration is less than or equal to 23min, and 27min is more than or equal to 33min;
And/or
If the outdoor temperature is smaller than the second preset temperature and is larger than or equal to the third preset temperature, and the outdoor wind speed is smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a third preset duration, a third preset frequency and a third preset current range;
if the outdoor temperature is smaller than the second preset temperature and is greater than or equal to the third preset temperature, and the outdoor wind speed is not smaller than a preset wind speed, determining that the operation duration, the operation frequency and the current range are a fourth preset duration, a fourth preset frequency and a fourth preset current range respectively;
Wherein the second preset temperature is less than or equal to minus 2 ℃, the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 3.4m/s, the third preset frequency is less than or equal to 53Hz and less than or equal to 57Hz, the fourth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz,27min is less than or equal to the third preset duration is less than or equal to 33min, and 37min is less than or equal to 43min;
And/or
If the outdoor temperature is smaller than a third preset temperature and the outdoor wind speed is smaller than a preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a fifth preset duration, a fifth preset frequency and a fifth preset current range;
If the outdoor temperature is smaller than the third preset temperature and the outdoor wind speed is not smaller than the preset wind speed, determining that the operation duration, the operation frequency and the current range are respectively a sixth preset duration, a sixth preset frequency and a sixth preset current range;
Wherein the third preset temperature is less than or equal to minus 12 ℃ and less than or equal to minus 8 ℃, the preset wind speed is less than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the 63Hz and less than or equal to the sixth preset frequency is less than or equal to 67Hz, the 32min and less than or equal to the fifth preset duration is less than or equal to 38min, and the 42min and less than or equal to 48min.
10. An air conditioner, comprising:
A memory;
A processor; and
A computer program stored in the memory and configured to be executed by the processor to implement the control method of the air conditioner of any one of claims 1 to 9.
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