CN217929104U - Indoor ventilation system - Google Patents
Indoor ventilation system Download PDFInfo
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- CN217929104U CN217929104U CN202221876355.3U CN202221876355U CN217929104U CN 217929104 U CN217929104 U CN 217929104U CN 202221876355 U CN202221876355 U CN 202221876355U CN 217929104 U CN217929104 U CN 217929104U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 40
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 82
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 41
- 239000001569 carbon dioxide Substances 0.000 claims description 41
- 238000000605 extraction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000005086 pumping Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
- Ventilation (AREA)
Abstract
The application relates to indoor warm technical field that leads to, this application provides an indoor air exchange system, includes: the air-conditioner comprises at least two bidirectional air exhaust fans, a first sensor, a second sensor, a control circuit and a relay circuit, wherein the two bidirectional air exhaust fans are installed on a wall body; the first sensor and the second sensor are respectively connected to the control circuit, and the control circuit is connected to the bidirectional exhaust fan through the relay circuit; the first sensor and the second sensor output detection environment data to be sent to the control circuit, and the control circuit outputs control signals to control the relay circuit to trigger the bidirectional exhaust fan. The indoor ventilation system provided by the application can ensure that the indoor air quality can be maintained at a good level for a long time.
Description
Technical Field
The application relates to the technical field of indoor heating ventilation, in particular to an indoor ventilation system.
Background
In recent years, a technical means for ensuring indoor air quality has attracted much attention, and especially in summer or northern areas in winter, an indoor environment is generally in a relatively closed state due to an air conditioner. The ventilator is an air conditioning appliance, wherein the fan blades are driven by the motor to rotate to drive airflow, so that indoor air and outdoor air are exchanged.
The conventional ventilation fans have three ventilation modes, namely, a discharge type ventilation mode, a suction type ventilation mode and a combined type ventilation mode. (1) The exhaust type air inlet device enters air from a natural air inlet and exhausts dirty air through the ventilation fan; (2) The suction type air purifier sucks fresh air through the ventilation fan and discharges dirty air from the natural exhaust port; (3) The combined use mode is that air suction and air exhaust are completed by a ventilator.
However, the conventional ventilation fans operate according to a generally set rotation speed and rotation mode, but the constant operation mode cannot ensure that the indoor air index can be maintained within a preset range, so that the indoor air quality cannot be maintained at a good level for a long time.
SUMMERY OF THE UTILITY MODEL
In order to guarantee that air quality can maintain at good horizontally technical purpose for a long time, this application provides an indoor air exchange system.
This indoor ventilation system includes: the air-suction device comprises at least two bidirectional air suction fans, a first sensor, a second sensor, a control circuit and a relay circuit, wherein the two bidirectional air suction fans are arranged on a wall body;
the first sensor and the second sensor are respectively connected to the control circuit, and the control circuit is connected to the bidirectional exhaust fan through the relay circuit;
the first sensor and the second sensor output detection environment data to be sent to the control circuit, and the control circuit outputs control signals to control the relay circuit to trigger the bidirectional exhaust fan.
In an alternative embodiment, the first and second sensors are connected to the control circuit by an RS485 bus.
In an optional embodiment, the control circuit comprises a programmable controller, and the relay circuit comprises a relay;
the programmable controller is connected to the bidirectional exhaust fan through the control circuit and the relay.
In an alternative embodiment, the first sensor comprises a carbon dioxide concentration sensor;
the second sensor comprises a wind direction detector, and the wind direction detector is arranged at the position of an outdoor roof of a building where the detected indoor space is located.
In an optional embodiment, the carbon dioxide concentration sensor outputs an indoor carbon dioxide concentration parameter, and the wind direction detector outputs an outdoor wind direction parameter;
the control circuit receives the carbon dioxide concentration parameter and the outdoor wind direction parameter, and the relay circuit controls the bidirectional extraction fan to rotate forwards or reversely.
In an optional embodiment, the first sensor further comprises an indoor temperature detector; the second sensor further comprises an outdoor temperature detector.
In an optional embodiment, the outdoor temperature detector outputs an outdoor temperature parameter, and the indoor temperature detector outputs an indoor temperature parameter;
the control circuit receives the carbon dioxide concentration parameter, the outdoor temperature parameter and the indoor temperature parameter, and controls the bidirectional exhaust fan to rotate forwards or stop rotating through the relay circuit.
In an alternative embodiment, the first sensor further comprises an indoor humidity detector; the second sensor further comprises an outdoor humidity detector.
In an optional embodiment, the outdoor humidity detector outputs an outdoor temperature parameter, and the indoor humidity detector outputs an indoor temperature parameter;
the control circuit receives the carbon dioxide concentration parameter, the indoor temperature parameter, the outdoor temperature parameter and the indoor temperature parameter, and controls one of the forward rotation, the reverse rotation or the stop rotation of the bidirectional exhaust fan through the relay circuit.
In an alternative embodiment, the second sensor further comprises a wind speed sensor; the wind speed sensor is arranged at the position of an outdoor roof of a building where the indoor space to be detected is located;
the wind speed sensor is used for detecting outdoor wind speed parameters;
the control circuit receives the carbon dioxide concentration parameter, the indoor temperature parameter, the indoor humidity parameter and the outdoor wind speed parameter, and controls one of forward rotation, reverse rotation or stalling of the bidirectional exhaust fan through the relay circuit.
The application provides an indoor air exchange system has following technological effect:
based on the indoor air exchange system that this application provided, the operation mode of two-way extraction fan of real-time adjustment adapts to current indoor environment and outdoor environment simultaneously to ensure that the indoor air quality can maintain at good level for a long time.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice.
Drawings
The foregoing and/or additional aspects and advantages will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram illustrating a connection structure of an indoor ventilation system according to an embodiment of the present application;
fig. 2 is a schematic connection structure diagram of an indoor ventilation system according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a control relationship of an indoor ventilation system according to an embodiment of the present application;
fig. 4 is a schematic connection structure diagram of an indoor ventilation system according to an embodiment of the present application;
fig. 5 is a schematic view illustrating a connection structure of an indoor ventilation system according to an embodiment of the present application;
fig. 6 is a schematic connection structure diagram of an indoor ventilation system according to an embodiment of the present application.
Detailed Description
The present application is further described with reference to the following drawings and exemplary embodiments, wherein like reference numerals are used to refer to like elements throughout. In addition, if a detailed description of the known art is not necessary to show the features of the present application, it is omitted.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a connection structure of an indoor ventilation system according to an embodiment of the present disclosure.
The application provides an indoor air exchange system, can solve and can not ensure that indoor air quality can maintain the technical problem at good level for a long time among the prior art.
This indoor ventilation system includes: at least two bidirectional suction fans 10, a first sensor 100, a second sensor 200, a control circuit 300 and a relay circuit 400.
The bidirectional suction fan 10 is installed on a wall, which is a partition wall separating an indoor space and an outdoor space. The bidirectional suction fan 10 can be rotated in a forward direction or a reverse direction. And the first sensor 100 and the second sensor 200 are respectively provided indoors and outdoors for detecting environmental data of an indoor environment and an outdoor environment, respectively.
The input end of the control circuit 300 is electrically connected to the first sensor 100 and the second sensor 200, the output end of the control circuit 300 is connected to the relay circuit 400, and the bidirectional exhausting fan 10 is connected to the relay circuit 400.
The control circuit 300 receives environmental data of the indoor environment and the outdoor environment from the first sensor 100 and the second sensor 200, generates a control signal, and transmits the control signal to the relay circuit 400. The relay circuit 400 receives the control signal, and when the control signal satisfies an excitation condition of a predetermined function of the relay circuit 400, the relay circuit 400 generates a corresponding excitation signal and sends the excitation signal to the bidirectional pumping fan 10 to control the operation of the bidirectional pumping fan 10, so as to control the bidirectional pumping fan 10 to suck air, pump air or stop rotating to the indoor environment.
Based on the indoor ventilation system that this application provided, the operation mode of adjusting two-way suction fan 10 in real time adapts to current indoor environment and outdoor environment simultaneously to ensure that indoor air quality can maintain at good level for a long time.
On the basis of the above-provided embodiment, the first sensor 100 and the second sensor 200 are connected to the control circuit 300 through the RS485 bus 20, that is, the nodes of the first sensor 100 and the second sensor 200 are connected in series through the RS485 bus 20 and connected to the control circuit 300.
The control circuit 300 includes a programmable controller and the relay circuit 400 includes a relay. The programmable controller receives environmental data of indoor environment and outdoor environment from the first sensor 100 and the second sensor 200, performs logic operation on the environmental data, generates a control signal and outputs the control signal to a relay, starts the relay to operate, and controls the bidirectional exhaust fan 10 through the relay. The bi-directional pumping fan 10 operates according to an operation mode corresponding to the current indoor environment and outdoor environment data received by the first sensor 100 and the second sensor 200. The relay circuit 400 may further include a solenoid valve, the opening amplitude of which is controlled by a control signal output by the programmable controller and an excitation signal of the relay, so as to achieve the technical purpose of rapidly adjusting the indoor air quality according to the current environment data of the indoor environment and the outdoor environment received by the first sensor 100 and the second sensor 200.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a connection structure of an indoor ventilation system according to an embodiment of the present disclosure.
On the basis of the above embodiment, the first sensor 100 includes the carbon dioxide concentration sensor 101, and the carbon dioxide concentration sensor 101 is installed in the detected indoor space, and acquires the detection data of the carbon dioxide in the indoor space, such as the carbon dioxide concentration parameter.
The second sensor 200 includes a wind direction detector 201. The wind direction detector 201 is installed at the outdoor roof of the building where the detected indoor space is located, so that the situation that the acquired outdoor wind direction parameter error is large and the control of the operation mode of the bidirectional suction fan 10 is influenced due to the shielding effect of the building is avoided.
The control circuit 300 presets trigger conditions for different operation modes of the bidirectional bleeding fan 10, which include the results of logical operations performed on the environment data of the indoor environment and the outdoor environment received by the first sensor 100 and the second sensor 200. In this embodiment, after the outdoor wind direction parameter and the carbon dioxide concentration parameter are received by the control circuit 300 from the wind direction detector 201, for example, when the received carbon dioxide concentration parameter is greater than 1000ppm and the outdoor wind direction obtained by the outdoor wind direction parameter is north or off-north data, the result of the logic operation satisfies the trigger condition for triggering the relay circuit 400 to generate corresponding southward exhaust, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal after receiving the control signal. The bi-directional suction fan 10 receives the activation signal and automatically turns on or adjusts to a southward exhaust rotation mode.
For convenience of describing the operation mode of the bidirectional exhaust fan 10, in the description of the rotation mode of the bidirectional exhaust fan 10 in the present application, the rotation mode of exhausting air to the south is set to the forward rotation mode; correspondingly, the rotary mode of the northward exhaust air is set as a reverse mode; setting a standby mode in which rotation is stopped as a stall mode; alternatively, the power-off mode in which rotation is stopped is set to the stop operation mode.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a control relationship of an indoor ventilation system according to an embodiment of the present application.
Referring to the triggering principle of the operation mode of the bidirectional exhaust fan 10 in the above embodiment, the indoor ventilation system in this embodiment may further include the following operation modes:
that is, when the carbon dioxide concentration parameter received by the control circuit 300 is greater than 1000ppm and the outdoor wind direction obtained by the outdoor wind direction parameter is north or north-biased, the rotation mode of the bidirectional pumping fan 10 is turned on or adjusted to the forward rotation mode according to the control signal of the control circuit 300 and the start signal of the relay circuit 400. If the carbon dioxide concentration parameter received by the control circuit 300 is greater than 1000ppm and the outdoor wind direction obtained from the outdoor wind direction parameter is in the south direction or the partial south direction, the rotation mode of the bidirectional exhaust fan 10 is turned on or adjusted to the reverse rotation mode.
Referring to fig. 4, fig. 4 is a schematic view illustrating a connection structure of an indoor ventilation system according to an embodiment of the present application.
In this embodiment, the first sensor 100 further includes an outdoor temperature detector 202, and the second sensor 200 further includes an indoor temperature detector 102. Based on the settings of the first sensor 100 and the second sensor 200, the control circuit 300 receives the indoor temperature parameter of the detected indoor space and the outdoor temperature parameter thereof from the outdoor temperature detector 202 and the indoor temperature detector 102, respectively, in addition to the carbon dioxide concentration parameter detected by the carbon dioxide concentration sensor 101. When the combined data of the carbon dioxide concentration parameter, the indoor temperature parameter, and the outdoor temperature parameter received by the control circuit 300 satisfy the preset trigger condition regarding the specific operation mode of the bidirectional exhaust fan 10 through the logical operation result, the control circuit 300 generates a control signal for controlling the bidirectional exhaust fan 10 to perform the corresponding specific operation mode, and sends the control signal to the relay circuit 400. After receiving the control signal, the relay circuit 400 generates a start signal for starting or adjusting the bidirectional pumping fan 10 to enter the specific operation mode. After receiving the start signal, the bidirectional exhaust fan 10 operates according to the specific operation mode.
Specifically, for example, when the control circuit 300 performs logical operation on the received indoor carbon dioxide concentration parameter being less than 1000ppm, the indoor temperature parameter being less than 20 °, and the result of the logical operation on the combined data with the outdoor temperature parameter being greater than the indoor temperature parameter satisfies the trigger condition of the forward rotation mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal and operates in a corresponding forward rotation mode. If the result of the logic operation of the combined data of the outdoor temperature parameter less than or equal to the indoor temperature parameter satisfies the trigger condition of the stall mode preset by the control circuit 300 under the same conditions that the indoor carbon dioxide concentration parameter is less than 1000ppm and the indoor temperature parameter is less than 20 °, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the bidirectional exhaust fan 10 receives the corresponding start signal and rotates according to the stall mode, so that the bidirectional exhaust fan 10 which is originally in the rotating state stops rotating, or the bidirectional exhaust fan 10 maintains the non-rotating state.
Similarly, when the control circuit 300 determines that the received indoor carbon dioxide concentration parameter is less than 1000ppm, the indoor temperature parameter is greater than 25 °, and the logical operation result of the combined data of the outdoor temperature parameter greater than or equal to the indoor temperature parameter meets the trigger condition of the stall mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal, and rotates according to the corresponding stall mode, so that the bidirectional exhaust fan 10 which is originally in the rotating state stops rotating, or the bidirectional exhaust fan 10 maintains the non-rotating state.
Referring to fig. 5, fig. 5 is a schematic view illustrating a connection structure of an indoor ventilation system according to an embodiment of the present application.
In this embodiment, the first sensor 100 further includes an indoor humidity detector 103, and the second sensor 200 further includes an outdoor humidity detector 203. Based on the settings of the first sensor 100 and the second sensor 200, the control circuit 300 receives the carbon dioxide concentration parameter detected by the carbon dioxide concentration sensor 101 and the indoor temperature parameter detected by the indoor temperature detector 102 for the detected indoor space, and receives the indoor humidity parameter of the detected indoor space and the outdoor humidity parameter thereof from the outdoor humidity detector 203 and the indoor humidity detector 103, respectively. When the combined data of the carbon dioxide concentration parameter, the indoor temperature parameter, the indoor humidity parameter, and the outdoor humidity parameter received by the control circuit 300 satisfy the preset triggering condition regarding the specific operation mode of the bidirectional exhaust fan 10 through the logical operation result, the control circuit 300 generates a control signal for controlling the bidirectional exhaust fan 10 to perform the corresponding specific operation mode, and sends the control signal to the relay circuit 400. After receiving the control signal, the relay circuit 400 generates a start signal for starting or adjusting the bidirectional pumping fan 10 to enter the specific operation mode. After receiving the start signal, the bidirectional exhaust fan 10 operates according to the specific operation mode.
Specifically, for example, when the control circuit 300 performs logic operation on the received indoor carbon dioxide concentration parameter of less than 1000ppm and the indoor temperature parameter of between 20 ° and 25 °, and when the indoor humidity parameter is less than 30% and the result of the logic operation on the combined data with the outdoor humidity parameter greater than the indoor humidity parameter satisfies the trigger condition of the forward rotation mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and transmits the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal and operates according to a corresponding forward rotation mode. If the outdoor humidity parameter is less than or equal to the indoor humidity parameter under the same conditions of the indoor carbon dioxide concentration parameter, the indoor temperature parameter and the indoor humidity parameter, the result of the logic operation of the corresponding combined data meets the trigger condition of the stall mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the bidirectional exhaust fan 10 receives the corresponding start signal and rotates according to the stall mode, so that the bidirectional exhaust fan 10 which is originally in the rotating state stops rotating, or the bidirectional exhaust fan 10 maintains the non-rotating state.
Similarly, when the control circuit 300 determines that the received indoor carbon dioxide concentration parameter is less than 1000ppm, the indoor temperature parameter is within an interval of 20 ° to 25 °, and when the indoor humidity parameter is greater than 60% and a result of a logic operation of the combined data of the outdoor humidity parameters greater than or equal to the indoor humidity parameter satisfies a trigger condition of a stall mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the bidirectional exhaust fan 10 receives the corresponding start signal and rotates according to the stall mode, so that the bidirectional exhaust fan 10 which is originally in a rotating state stops rotating, or the bidirectional exhaust fan 10 maintains a non-rotating state. If the outdoor humidity parameter is less than or equal to the indoor humidity parameter under the same conditions of the indoor carbon dioxide concentration parameter, the indoor temperature parameter and the indoor humidity parameter, the logic operation result of the corresponding combined data meets the trigger condition of the inversion mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal and operates in a corresponding reverse mode.
Referring to fig. 6, fig. 6 is a schematic connection structure diagram of an indoor ventilation system according to an embodiment of the present application.
On the basis of the above embodiment, the second sensor 200 further includes a wind speed sensor 204; the wind speed sensor 204 is arranged at the position of the outdoor roof of the building to be ventilated. The wind speed sensor 204 is used to detect outdoor wind speed parameters. Based on the settings of the first sensor 100 and the second sensor 200, the control circuit 300 receives an outdoor wind direction parameter from the wind direction detector 201, and an outdoor wind speed parameter from the wind speed sensor 204, in addition to a carbon dioxide concentration parameter detected by the carbon dioxide concentration sensor 101, an indoor temperature parameter detected by the indoor temperature detector 102 for the detected indoor space, and an indoor humidity parameter detected by the indoor humidity detector 103 for the detected indoor space. When the combined data of the carbon dioxide concentration parameter, the indoor temperature parameter, and the outdoor temperature parameter received by the control circuit 300 and the result of the logical operation satisfies the preset trigger condition regarding the specific operation mode of the bidirectional exhaust fan 10, the control circuit 300 generates a control signal for controlling the bidirectional exhaust fan 10 to perform the corresponding specific operation mode, and sends the control signal to the relay circuit 400. After receiving the control signal, the relay circuit 400 generates a start signal for starting or adjusting the bidirectional pumping fan 10 to enter the specific operation mode. After receiving the start signal, the bidirectional exhaust fan 10 operates according to the specific operation mode.
Specifically, for example, when the control circuit 300 receives the indoor carbon dioxide concentration parameter of less than 1000ppm, the indoor temperature parameter of 20 to 25 degrees, the indoor humidity parameter of 30 to 60 degrees, and the result of the logic operation of the combination data of the outdoor wind direction parameter of north wind or skew wind and the outdoor wind speed parameter of more than 2-level wind speed satisfies the triggering condition of the stop operation state preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and transmits the control signal to the relay circuit 400, the bidirectional exhaust fan 10 receives the corresponding start signal, and disconnects the bidirectional exhaust fan 10 from the power supply in the stop operation mode, so as to prevent the bidirectional exhaust fan 10 from being damaged by the outdoor wind power pushing action when the bidirectional exhaust fan 10 is powered on. If the bidirectional exhaust fan 10 is in the stop state, the bidirectional exhaust fan 10 needs to be reconnected to the power supply if the working state of the bidirectional exhaust fan 10 needs to be updated.
Under the condition of the same indoor carbon dioxide concentration parameter, indoor temperature parameter, indoor humidity parameter and outdoor wind direction parameter, if the outdoor wind speed parameter received by the control circuit 300 is less than the 2-level wind speed, the result of the logic operation obtained by the control circuit 300 meets the trigger condition of the forward rotation mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, the bidirectional extraction fan 10 receives the corresponding start signal, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal and operates in a corresponding forward rotation mode.
Similarly, under the same conditions of the indoor carbon dioxide concentration parameter, the indoor temperature parameter and the indoor humidity parameter, if the outdoor wind direction parameter is south wind or south wind, and the outdoor wind speed parameter is greater than 2-level wind speed, the result of the logic operation executed by the control circuit 300 meets the trigger condition of the stall mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, the bidirectional suction fan 10 receives the corresponding start signal, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal, and stops rotating according to the stop mode, but at this time, the bidirectional exhaust fan 10 is in a standby state and is not disconnected from the power supply.
The difference from the embodiment is that when the outdoor wind speed parameter received by the control circuit 300 is greater than the 2-level wind speed, the result of the logic operation executed by the control circuit 300 satisfies the trigger condition of the inversion mode preset by the control circuit 300, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, the bidirectional extraction fan 10 receives a corresponding start signal, the control circuit 300 generates a corresponding control signal and sends the control signal to the relay circuit 400, and the relay circuit 400 generates a corresponding start signal. The bidirectional exhaust fan 10 receives the start signal and operates in the reverse mode. According to the embodiment of the present application, the bidirectional exhaust fan 10 can be switched from the original operation mode of stopping rotation or exhausting air to the south to the operation mode of exhausting air to the north.
The control circuit 300 further adjusts the rotation speed of the bidirectional bleeding fan 10 correspondingly by combining the result of the logic operation performed on the outdoor wind speed parameter received from the wind speed sensor 204, so as to control the indoor air quality more accurately, and the indoor ventilation system provided by the present application can be applied to indoor environments with different application requirements.
For the above-mentioned embodiments, the control circuit 300 may further determine the starting number of the bidirectional bleeding fans 10 according to the received current indoor temperature parameter and the received indoor humidity parameter, and the comparison result between the target indoor temperature parameter and the target indoor humidity parameter, so as to achieve the technical purpose of accurately controlling the indoor air quality with more energy consumption saving.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. An indoor ventilation system, comprising: the air-suction device comprises at least two bidirectional air suction fans, a first sensor, a second sensor, a control circuit and a relay circuit, wherein the two bidirectional air suction fans are arranged on a wall body;
the first sensor and the second sensor are respectively connected to the control circuit, and the control circuit is connected to the bidirectional exhaust fan through the relay circuit;
the first sensor and the second sensor output detection environment data to be sent to the control circuit, and the control circuit outputs control signals to control the relay circuit to trigger the bidirectional exhaust fan.
2. Indoor ventilation system according to claim 1,
the first sensor and the second sensor are connected to the control circuit through an RS485 bus.
3. An indoor ventilation system as defined in claim 1, wherein:
the control circuit comprises a programmable controller, and the relay circuit comprises a relay;
the programmable controller is connected to the bidirectional exhaust fan through the control circuit and the relay.
4. Indoor ventilation system according to claim 1,
the first sensor comprises a carbon dioxide concentration sensor;
the second sensor comprises a wind direction detector, and the wind direction detector is arranged at the position of an outdoor roof of a building where the detected indoor space is located.
5. An indoor ventilation system as defined in claim 4, wherein:
the carbon dioxide concentration sensor outputs indoor carbon dioxide concentration parameters, and the wind direction detector outputs outdoor wind direction parameters;
the control circuit receives the carbon dioxide concentration parameter and the outdoor wind direction parameter, and the relay circuit controls the bidirectional extraction fan to rotate forwards or reversely.
6. An indoor ventilation system as defined in claim 4, wherein:
the first sensor further comprises an indoor temperature detector;
the second sensor further comprises an outdoor temperature detector.
7. An indoor ventilation system as defined in claim 6, wherein:
the outdoor temperature detector outputs outdoor temperature parameters, and the indoor temperature detector outputs indoor temperature parameters;
the control circuit receives the carbon dioxide concentration parameter, the outdoor temperature parameter and the indoor temperature parameter, and controls the bidirectional exhaust fan to rotate forwards or stop rotating through the relay circuit.
8. An indoor ventilation system as defined in claim 6, wherein:
the first sensor further comprises an indoor humidity detector;
the second sensor further comprises an outdoor humidity detector.
9. An indoor ventilation system as defined in claim 8, wherein:
the outdoor humidity detector outputs outdoor temperature parameters, and the indoor humidity detector outputs indoor temperature parameters;
the control circuit receives the carbon dioxide concentration parameter, the indoor temperature parameter, the outdoor temperature parameter and the indoor temperature parameter, and controls one of the forward rotation, the reverse rotation or the stop rotation of the bidirectional exhaust fan through the relay circuit.
10. An indoor ventilation system as defined in claim 9, wherein:
the second sensor further comprises a wind speed sensor; the wind speed sensor is arranged at the position of an outdoor roof of a building where the detected indoor space is located;
the wind speed sensor is used for detecting outdoor wind speed parameters;
the control circuit receives the carbon dioxide concentration parameter, the indoor temperature parameter, the indoor humidity parameter and the outdoor wind speed parameter, and controls one of the forward rotation, the reverse rotation or the stop rotation of the bidirectional exhaust fan through the relay circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876355.3U CN217929104U (en) | 2022-07-19 | 2022-07-19 | Indoor ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876355.3U CN217929104U (en) | 2022-07-19 | 2022-07-19 | Indoor ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217929104U true CN217929104U (en) | 2022-11-29 |
Family
ID=84190673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876355.3U Expired - Fee Related CN217929104U (en) | 2022-07-19 | 2022-07-19 | Indoor ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217929104U (en) |
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2022
- 2022-07-19 CN CN202221876355.3U patent/CN217929104U/en not_active Expired - Fee Related
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Granted publication date: 20221129 |