CN105865032B - Water heater and control device and control method thereof - Google Patents
Water heater and control device and control method thereof Download PDFInfo
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- CN105865032B CN105865032B CN201610235305.XA CN201610235305A CN105865032B CN 105865032 B CN105865032 B CN 105865032B CN 201610235305 A CN201610235305 A CN 201610235305A CN 105865032 B CN105865032 B CN 105865032B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 464
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 281
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 30
- 238000004364 calculation method Methods 0.000 claims description 17
- 238000009790 rate-determining step (RDS) Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a water heater and a control device and method thereof. The control device includes: the reservation setting module is used for presetting the reservation water using time and the reservation water using temperature of the user; the water temperature monitoring unit is used for monitoring the current water temperature of water in a water tank of the water heater; an arithmetic unit for calculating a heating time required for heating the water in the water tank to the reserved water temperature when the current water temperature reaches a predetermined water temperature that is less than the reserved water temperature, and comparing the heating time with a remaining time obtained by subtracting a current time from the reserved water time; and a heating mode control unit for controlling switching of a heating mode of the water heater according to a result of the comparison from the arithmetic unit. The water heater and the control device and method thereof can ensure that heating can be completed on time even if abnormal conditions occur in the heating process by switching the heating modes of the water heater.
Description
Technical field
The present invention relates to technical field of electric appliances more particularly to a kind of water heater and its control device and methods.
Background technique
With becoming increasingly popular for water heater household, water heater gives user's bring convenience and comfort more next when in use
It attracts attention more.For example, the mode that existing water heater generallys use reservation heating to the heating of water specifically works as needs
When using hot water, user is set using the time of hot water and the temperature of hot water in advance, and opens water heater to the water in water tank
It is heated.When reaching the predetermined time, the water in water-heater water tank is heated to set by user by the heating component of water heater
Predetermined temperature.That is, in current water heater, for example, in air energy water heater, after the unlatching of its reservation function, water heater
Heating component can be begun to warm up according to default or calculated time advance, and when reaching book setting time point, so that hot
Hydrophone is just completed to heat.
However, it is possible to the problem is that, if operating condition changes during heating, there are abnormal conditions, such as
The unit operation conditions of water heater changes, and the decline of set heat exchange ability or user are changed with regimen condition, then may be used
It can cause water heater that can not heat the water to predetermined temperature according to the original calculating time.
Summary of the invention
It is proposed the present invention be directed to drawbacks described above existing in the prior art.I.e. the present invention provide a kind of water heater and its
Control device and method, can by switch water heater heating mode, even if guarantee occur abnormal conditions during heating,
It remains to be timely completed heating.
According to the first aspect of the invention, a kind of control device of water heater is provided, comprising: book setting module is used for
The reservation of user's water is preset with water moment and reservation coolant-temperature gage；Water temperature detection unit, for monitoring the water of water heater
The current water temperature of water in case；Arithmetic element is less than the predetermined of the reservation coolant-temperature gage for reaching one in the current water temperature
In the case where water temperature, heating time needed for the water in water tank is heated to the reservation coolant-temperature gage by calculating, and compare this and add
Hot time and the reservation subtract the size of resulting remaining time at current time with the water moment；And heating mode control is single
Member, the switching of the heating mode for controlling water heater according to the comparison result from the arithmetic element.
Further, if the heating time is greater than the remaining time, the output control of heating mode control unit
Instruction, is switched to quick heating mode for the heating mode of water heater.
Further, the arithmetic element includes: the first comparison module, is made a reservation for for the current water temperature with described
The size of water temperature；Computing module, for calculating and heating the water in water tank when the current water temperature reaches the predetermined water temperature
To heating time needed for the reservation coolant-temperature gage；And second comparison module, for compare the heating time with it is described pre-
The size of resulting remaining time at current time is about subtracted with the water moment；The heating mode control unit second compares according to this
The switching of the heating mode of the comparison result control water heater of module.
Further, the water temperature detection unit includes: detection module, detects the current water temperature of water in water tank；And ratio
Compared with module, compare the size of the Current Temperatures Yu the predetermined temperature.
Further, the arithmetic element includes: computing module, for when current water temperature reaches the predetermined water temperature,
Heating time needed for water in water tank is heated to the reservation coolant-temperature gage by calculating；And second comparison module, for than
The size of resulting remaining time at current time is subtracted with the water moment compared with the heating time and the reservation；The heating mode control
Unit processed controls the switching of the heating mode of water heater according to the comparison result of second comparison module.
Further, after current water temperature is greater than the predetermined water temperature predetermined number of degrees with respect, computing module calculates in water tank again
Water be heated to the reservation coolant-temperature gage needed for heating time, and compare the heating time calculated again and the reservation
The size of resulting new remaining time at current time is subtracted with the water moment；
If the heating time calculated again is equal to the new remaining time, the heating mode control unit control
The heating system of heat water producer maintains current heating mode, and/or
If the heating time calculated again is less than the new remaining time, heating mode control unit will be hot
The heating mode of hydrophone is switched to heating mode before this from current heating mode.
According to the second aspect of the invention, a kind of control method of water heater is provided, comprising: book setting step, in advance
The reservation of user's water is set with water moment and reservation coolant-temperature gage；Water temperature detection step monitors water in the water tank of water heater
Current water temperature；Calculation step, in the case where the current water temperature is less than the predetermined water temperature of the reservation coolant-temperature gage, meter
Heating time needed for calculation heats the water to the reservation coolant-temperature gage, and compare the heating time and the reservation water moment
Subtract the size of resulting remaining time at current time；And heating mode rate-determining steps, it is controlled according to the comparison result
The switching of the heating mode of water heater.
Further, if the heating time is greater than the remaining time, the heating mode of water heater is switched to fastly
Fast heating mode.
Further, the calculation step includes: the first comparison step, the current water temperature and the predetermined water temperature
Size；Step is calculated, when the current water temperature reaches the predetermined water temperature, the water in water tank is heated to described pre- by calculating
The about heating time needed for coolant-temperature gage；And second comparison step, compare the heating time subtracts with the reservation water moment
Go the size of resulting remaining time at current time；In the heating mode rate-determining steps, according in second comparison step
The switching of the heating mode of the comparison result control water heater of acquisition.
Further, the water temperature detection step includes: detecting step, detects the current water temperature of water in water tank；And ratio
Compared with step, compare the size of the Current Temperatures Yu the predetermined temperature.
Further, the calculation step includes: calculating step, when the current water temperature reaches the predetermined water temperature,
Heating time needed for water in water tank is heated to the reservation coolant-temperature gage by calculating；And second comparison step, compare this
Heating time and the reservation subtract the size of resulting remaining time at current time with the water moment；The heating mode control step
In rapid, according to the switching of the heating mode of the comparison result control water heater in second comparison step.
Further, after current water temperature is greater than the predetermined water temperature predetermined number of degrees with respect, the water heating in water tank is calculated again
To heating time needed for the reservation coolant-temperature gage, and compare the heating time calculated again and the reservation water moment
Subtract the size of resulting new remaining time at current time；If the heating time calculated again is equal to described new remain
Remaining time, the then heating system for controlling water heater maintain current heating mode, and/or if when the heating calculated again
Between be less than the new remaining time, then the heating mode of water heater is switched to heated mould before this from current heating mode
Formula.
According to the third aspect of the invention we, a kind of water heater is provided, including any of the above-described control device.
Above scheme according to the present invention, in the reservation heating process of water heater, water works as in detection water-heater water tank
Preceding water temperature, if the current water temperature reaches a predetermined water temperature for being less than reservation coolant-temperature gage, calculating heats the water to described
Reservation was compared the heating time and reservation with the water moment to subtract current time resulting surplus with heating time needed for coolant-temperature gage
The size of remaining time controls the switching of the heating mode of water heater according to comparison result.If the comparison result is described
Heating time is greater than the remaining time, then the heating mode of water heater is switched to quick heating mode.Preferably, Ke Yi
Water temperature in water-heater water tank increases predetermined temperature or repeats above-mentioned calculating after the predetermined time of interval and compare.And further
Ground maintains current heating mode until completing if comparison result is the heating time to be equal to the remaining time
Heating.It further, can be by hot water if the comparison result is the heating time to be less than the remaining time
The heating mode of device switches back into former heating mode from quick heating mode.In this way, then can be avoided different because occurring in heating process
The defect of heating can not be timely completed caused by reason condition, to improve the convenience and comfort that user uses.In addition, plus
Then also switch mode uses when may fulfil heating ahead of schedule due to environment temperature raising causes heat pump heat exchanging amount to improve in thermal process
More energy efficient mode come realize heating and guarantee the time.
Further detailed description is done to technical solution of the present invention below in conjunction with the drawings and the specific embodiments, the present invention
Beneficial effect will be further appreciated.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, is used for
It explains the present invention, does not constitute improper limitations of the present invention.
Fig. 1 shows the structural block diagram of a preferred controlling device for water heater according to the present invention.
Fig. 2 shows the structural block diagrams of arithmetic element according to the present invention one preferred control device.
Fig. 3 shows the structural block diagram of another preferred controlling device for water heater according to the present invention.
Fig. 4 shows the flow chart of a preferred control method according to the present invention.
Fig. 5 shows a preferred specific embodiment of the process of control method according to the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The heating mode of water heater is illustrated first.In general, water heater has quick heating mode, common heating mould
Several heating modes such as formula and energy-saving mode.Wherein, quick heating mode is the mode for accelerating heating speed, in this kind of mode
Under, water heater can be real in such a way that the running frequency (frequency changer) or both for opening for example electric auxiliary heat or quickening heat pump combines
Now quickly heating.Although this heating mode accelerates heating speed, but can also cause the increase of water heater energy consumption simultaneously.Energy conservation
Mode is to be not turned on for example electric auxiliary hot or water heater heat pump according to the mode of low-frequency operation.Such heating mode energy conservation, but add
Thermal velocity is slow.Common heating mode, that is, standard heating mode.Under this kind of mode, according to be not turned on for example described electricity it is auxiliary heat or not
Whole process opens the mode of the auxiliary heat of electricity, and the running frequency of heat pump is also run according to general intermediate frequency.Heating speed and energy under such mode
Consumption is between quick heating mode and energy-saving mode.
Water heater and its control device according to the present invention and method, in water heater, such as, but not limited to air energy thermal water
In the heating process of device, the current water temperature of water in water-heater water tank is detected, if the current water temperature, which reaches one, is less than reservation use
The predetermined water temperature of coolant-temperature gage then calculates heating time needed for heating the water to the reservation coolant-temperature gage, and compares the heating
Time and reservation subtract the size of resulting remaining time at current time with the water moment, control adding for water heater according to comparison result
The switching of heat pattern.
Specifically, if the comparison result is the heating time to be greater than the remaining time, by water heater
Heating mode is switched to quick heating mode, and present mode is maintained if the two is equal, further, if after the former is less than
Person is then switched to energy-saving mode.Preferably, predetermined temperature or interval predetermined time can be increased in the water temperature in water-heater water tank
After repeat above-mentioned calculating and compare.And further, if comparison result is when being equal to described remaining the heating time
Between, then maintain current heating mode to heat until completing.Further, if the comparison result is the heating
Between be less than the remaining time, then the heating mode of water heater can be switched back into former heating mode, example from quick heating mode
Such as common heating mode.
According to above scheme, in the present invention, the water in water tank can be heated to reservation from current time use by calculating
The water moment institute time actually required, it is thus understood that whether the operation conditions of the heating component of water heater is in normal condition, thus
When abnormal conditions occurs in water heater operation, it can guarantee that water heater is set in user in time by the heating mode of switching water heater
The heating to water in water tank is completed when fixed reservation is reached with the water moment, to improve the usage experience of user.
The solution of the present invention is described in detail below in conjunction with attached drawing.
Fig. 1 shows the structural block diagram of a preferred controlling device for water heater according to the present invention.As shown in Figure 1, the control
Device processed includes: book setting module 1, water temperature detection unit 2, arithmetic element 3 and heating mode control unit 4.Reservation is set
Cover half block 1 for presetting the reservation of user's water with water moment and reservation coolant-temperature gage, and sends it to arithmetic element
3.The water temperature detection unit 2 is used to detect the current water temperature of water in the water tank of water heater, and sends it to arithmetic element 3.
Arithmetic element 3 receives the current water temperature detected from water temperature detection unit 2, is less than the reservation in the current water temperature
In the case where predetermined water temperature with coolant-temperature gage, heating time needed for calculating heats the water to the reservation coolant-temperature gage, and compare
The size of resulting remaining time at current time is subtracted with the water moment compared with the heating time and the reservation.And heating mode control
Unit 4 processed controls the switching of the heating mode of water heater according to the comparison result from the arithmetic element 3.
Wherein, if the heating time is greater than the remaining time, the output control of heating mode control unit 4 refers to
It enables, the heating mode of water heater is switched to quick heating mode, otherwise, if the heating time is equal to the remaining time
Current heating mode can be then maintained, further, if the heating time is less than the remaining time, by water heater
Heating mode is switched to energy-saving mode.
Preferably, calculating and the ratio of arithmetic element 3 can be triggered again in water tank after the temperature raising predetermined number of degrees with respect of water
Compared with operation, and it is further, and if the heating time is equal to the remaining time, the heating mode control unit 4 is controlled
The heating system of heat water producer maintains current heating mode.Further, if the heating time is less than the residue
Time, then heating mode control unit 4 can by the heating mode of water heater from current heating mode be switched to before this plus
Heat pattern.
Each component is illustrated one by one below.
The book setting module 1 is preset for user with the reservation of water with water moment and reservation coolant-temperature gage.Tool
Body, user opens water heater, and water heater brings into operation.And by, for example, the reservation on the control panel that water heater is arranged in
The reservation water moment described in water moment key and reservation coolant-temperature gage key-press input and reservation water time, thus water heater
Heating system starts to heat the water in water tank according to the setting of user.
The water temperature detection unit 2 is subject to the detection for being able to achieve the water temperature of water heater inner water tank preferably by temperature sensing package.
The water temperature detection unit 2 can directly start detection to the temperature of water in water tank after user opens water heater, can also be
User starts the detection after completing setting.Temperature sensing package as the water temperature detection unit 2 can be set in the water heater
Water inlet position.In one embodiment, as shown in Figure 1, the water temperature detection unit 2 is for detecting the current water temperature, and
The current water temperature that will test is sent to the arithmetic element 3, carries out current water temperature and the predetermined water temperature by arithmetic element 3
Compare.
In another embodiment, as shown in figure 3, the structural block diagram of the described control unit for another embodiment.Wherein,
The water temperature detection unit 2 includes detection module 21 and comparison module 22.Detection module 21 is used to detect in the water tank of water heater
Current water temperature.Comparison module 22 compares the size of current water temperature Yu the predetermined water temperature, and reaches institute in the current water temperature
When stating predetermined water temperature, trigger signal is exported to arithmetic element 3.Water in the water tank is heated to described by the calculating of arithmetic element 3
Heating time needed for reservation coolant-temperature gage, and compare the heating time and the reservation and subtracted obtained by current time with the water moment
Remaining time size.Wherein, arithmetic element 3 is calculated according to the empirical data stored in the control unit of water heater in spy
Determine under environment temperature, the time needed when by water from a certain water temperature heating to another water temperature.However, present invention is also not necessarily limited to this,
It can according to need the calculation method that selection obtains the heating time.
Fig. 2 shows the structural block diagrams of a preferred embodiment of arithmetic element 3 according to the present invention.Shown in Fig. 2 should
In embodiment, the arithmetic element 3 includes: the first comparison module 31, described current from water temperature detection unit 2 for comparing
The size of water temperature and the predetermined water temperature, and the first comparison result is exported to computing module 32；Computing module 32 is used for when described
When first comparison result is that current water temperature reaches the predetermined water temperature, calculates and the water in water tank is heated to the reservation water temperature
Heating time needed for degree；And second comparison module 33, it is subtracted with the reservation with the water moment for comparing the heating time
The size of resulting remaining time at current time, and export the second comparison result.
Fig. 3 shows the structural block diagram of the arithmetic element 3 of another embodiment according to the present invention, according to the reality of Fig. 3
Example is applied, since temperature monitoring module 2 includes the then institute for the current water temperature and the comparison module of the predetermined water temperature 22
Stating arithmetic element 3 includes: that the water in water tank is heated to add needed for the reservation coolant-temperature gage by computing module 32 for calculating
The hot time；And second comparison module 33, current time institute is subtracted with the water moment for comparing the heating time and the reservation
The size of the remaining time obtained, and comparison result is exported to heating mode control unit 4.
Preferably, arithmetic element 3 further includes a clock unit 34, is used for timing, to export the current time to described
Second comparison module 33.Certainly, the clock unit 34 is not limited to include that can be built in water heater in arithmetic element 3
Control system in, as long as realizing necessary clocking capability.
It is further preferred that in both embodiments, comparison module 22 and the first comparison module 31 are also used in current water temperature
After raised predetermined number of degrees with respect described in the predetermined water temperature, i.e., the water temperature in water tank after reaching the predetermined temperature for the first time,
Increase the predetermined number of degrees with respect, export trigger signal, triggering computing module 32 calculate again the water in water tank be heated to it is described pre-
The about heating time needed for coolant-temperature gage, the second comparison module 33 then carries out the comparison operation again, to obtain newly
Second comparison result, the control for water heater heating mode.
The heating mode control unit 4 controls water heater according to the comparison result from the arithmetic element 3
Heating mode switching.
Specifically, if the heating time is greater than the remaining time, it is abnormal to show that water heater operation occurs, it cannot
Heat the water to reservation coolant-temperature gage with the water moment according to the reservation that user sets in reservation heating, then it can for guarantee user
Hot water is used with water moment and reservation coolant-temperature gage according to book setting, heating mode control unit 4 exports control instruction, will
The heating mode of water heater is switched to quick heating mode, with the hot water in heating water tank as early as possible.Such as air energy thermal water
For device, the water heater can be converted into quick heating mode by heat pump.Otherwise, if the heating time is equal to
The remaining time then shows water heater normal operation, can maintain current heating mode.Further, if the heating
Time is less than the remaining time, then shows that water heater heating is very fast, can be switched to energy-saving mode to be energy saving.
Preferably, after the temperature of water increases predetermined temperature in water tank, the arithmetic element 3 can carry out above-mentioned meter again
Operation is calculated and compares, and further, it is described if the heating time calculated again is equal to the remaining time calculated again
The heating system that heating mode control unit 4 controls water heater maintains current heating mode.Further, if counted again
The heating time of calculation is less than the remaining time in calculating again, then shows that the heating speed of water heater is accelerated, can be energy saving
Heating mode is switched to heating mode before this from current heating mode.
In addition, the present invention also provides a kind of water heater, including aforementioned any control device.
Illustrate water heater control method according to the present invention below in conjunction with Fig. 4.Fig. 4 shows one preferred according to the present invention
The flow chart of control method.As shown in Figure 4, which comprises book setting step S1, water temperature detecting step S2, operation step
Rapid S3 and heating mode rate-determining steps S4.Book setting step S1 presets the reservation of user's water with water moment and pre-
About use coolant-temperature gage.The water temperature detecting step S2, detects the current water temperature of water in the water tank of water heater.Calculation step S3, in institute
In the case where stating the predetermined water temperature that current water temperature is less than the reservation coolant-temperature gage, calculating heats the water to the reservation and uses
Heating time needed for coolant-temperature gage, and compare the heating time and the reservation and subtract current time resulting residue with the water moment
The size of time.And heating mode rate-determining steps S4, cutting for the heating mode of water heater is controlled according to the comparison result
It changes.
Each step is explained one by one below.
S1: in the book setting step, user completes the reservation setting at water moment and reservation coolant-temperature gage.Specifically
Ground, user open water heater, and water heater brings into operation.User can use, for example, being arranged on the control panel of water heater
Reservation water moment and reservation coolant-temperature gage described in reservation water moment key and reservation coolant-temperature gage key-press input, the knot of setting
Fruit can be used in calculation step S3.
S2: in the water temperature detection step, such as using as the temperature sensing package of the water temperature detection unit 2 detection water heater
Water tank in water current water temperature, and in calculation step S3.
S3: it in calculation step, if the current water temperature is less than the predetermined water temperature of the reservation coolant-temperature gage, calculates
Heating time needed for heating the water to the reservation coolant-temperature gage, and compare the heating time and subtract with the reservation water moment
Go the size of resulting remaining time at current time.
Preferably, the calculation step S3 includes the first comparison step, calculates step and the second comparison step.First ratio
Compared in step, the size of the current water temperature and the predetermined water temperature, and the first comparison result is obtained for the calculating
Step.It calculates in step, when first comparison result is that current water temperature reaches the predetermined water temperature, calculating will be in water tank
Heating time needed for water is heated to the reservation coolant-temperature gage.And second in comparison step, compares the heating time and institute
It states reservation and subtracts the size of resulting remaining time at current time with the water moment, and obtain the second comparison result.
In addition, the operation of first comparison step can also carry out in the water temperature detecting step S2.Correspondingly, work as water
If comparing current water temperature and predetermined water temperature in warm monitoring step, then the calculation step can include calculating step and the accordingly
Two comparison steps.
Preferably, calculation step S3 further includes a timed process, for example above-mentioned 34 timing of clock unit of utilization, and exports institute
Current time is stated, second comparison step is used for.
The heating mode rate-determining steps S4 controls the switching of the heating mode of water heater according to the comparison result.
Specifically, if the heating time is greater than the remaining time, it is abnormal to show that water heater operation occurs, it cannot be according to user
The reservation set in reservation heating heats the water to reservation coolant-temperature gage with the water moment, then can be according to reservation for guarantee user
Setting uses hot water with water moment and reservation coolant-temperature gage, in heating mode rate-determining steps S4, by the heating mode of water heater
It is switched to quick heating mode, with the hot water in heating water tank as early as possible.Otherwise, if the heating time is equal to described remaining
Between, then show water heater normal operation, current heating mode can be maintained.Further, if the heating time is less than institute
Remaining time is stated, then shows that water heater heating is very fast, energy-saving mode can be switched to be energy saving.
Preferably, it after the temperature of water increases predetermined temperature in water tank, is again started up the calculating and compares operation, and
Further, if the heating time calculated again is equal to the remaining time calculated again, show water heater normal operation, then
In the heating mode rate-determining steps 4, the heating system for controlling water heater maintains current heating mode.Further, such as
The heating time that fruit calculates again is less than the remaining time calculated again, then shows that the heating speed of water heater is accelerated, to save
Heating mode can be switched to heating mode before this from current heating mode by the energy.
The predetermined water temperature can be set according to environment temperature and the reservation with coolant-temperature gage, can be by user in water heater
Control panel on manually set.Since the reservation of user with coolant-temperature gage is usually 42-45 DEG C of range, and set water heater
In the case that use environment temperature is usually 20-30 DEG C, then the selection of the predetermined water temperature, such as it is set as 40 DEG C.Herein, it needs
Illustrating, being provided and selected for temperatures above is only exemplary, however, present invention is obviously not limited to this, affiliated neck
The technical staff in domain can set according to the service condition of water heater.Below by taking the reservation water temperature is 40 DEG C as an example, knot
Close the preferred specific embodiment that Fig. 5 illustrates the process of control method of the invention.
If the current water temperature of water is Tw in water-heater water tank, reservation is (Ts > 45 DEG C) Ts with coolant-temperature gage, current time T,
Reservation is Tt with the water moment and heating time is t.
Then user utilizes first, such as key-press input reservation on the control panel of water heater is with water moment and reservation water
Temperature, water heater starts later, and heating system begins to warm up the water in water tank.Water temperature detection unit 2 starts to detect in water tank
The current water temperature Tw of water.Arithmetic element 3 receives the current water temperature T w, and compares the size of itself and the predetermined water temperature.When described
When reserving water temperature equal to 40 DEG C, heating time t needed for the calculating of arithmetic element 3 heats the water to the reservation coolant-temperature gage Ts,
And compares heating time t and subtract the big of current time T resulting remaining time (i.e. Tt-T) with water moment Tt with the reservation
It is small.
If the heating time is greater than the remaining time, heating mode control unit 4 exports control instruction, will be hot
The heating mode of hydrophone is switched to quick heating mode, otherwise, if the heating time is equal to the remaining time, shows
Water heater normal operation can maintain current heating mode.Further, if the heating time is less than described remaining
Between, then show that water heater heating is very fast, energy-saving mode can be switched to be energy saving.
Next, detecting that water temperature increases predetermined number of degrees with respect and then primary calculate will be in water tank by water temperature detection unit 2
Water from current water temperature be heated to the reservation coolant-temperature gage Ts needed for heating time (for the sake of difference, being expressed as t '), and sentence
Whether the heating time t ' that breaks is greater than the remaining time (being expressed as Tt '-T '), if being, then the heating mode control
The heating system that unit 4 controls water heater maintains current heating mode.If no, then heating mode control unit 4 can incite somebody to action
The heating mode of water heater is switched to heating mode before this from current heating mode.
Water heater and its control device of the invention are described in detail in conjunction with attached drawing above.Side according to the present invention
Case can be heated to the reservation water moment institute time actually required from current time by the water in water tank by calculating, understand
Whether the operation conditions to the heating component of water heater is in normal condition, thus when abnormal conditions occurs in water heater operation,
It can guarantee that water heater uses water with the water moment in reservation set by user in time by the heating mode of switching water heater, thus
Improve the usage experience of user.And it is further, after water heater is switched to quick mode, by calculate again from it is current when
It carves and the water in water tank is heated to the reservation water moment institute time actually required less than in the case where remaining time, control hot water
Device is switched to former heating mode, to achieve the purpose that energy saving.
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (13)
1. a kind of controlling device for water heater, comprising:
Book setting module, for presetting the reservation of user's water with water moment and reservation coolant-temperature gage；
Water temperature detection unit, the current water temperature of water in the water tank for monitoring water heater；
Arithmetic element, for the current water temperature reach one be less than the reservation coolant-temperature gage predetermined water temperature in the case where,
Calculating the water in water tank is heated to the reservation coolant-temperature gage needed for heating time, and compare the heating time with it is described pre-
The size of resulting remaining time at current time is about subtracted with the water moment；Wherein, the arithmetic element includes:
First comparison module, the size for the current water temperature and the predetermined water temperature；
Computing module, for when the current water temperature reaches the predetermined water temperature, the water in water tank to be heated to described by calculating
Heating time needed for reservation coolant-temperature gage；And
Second comparison module, for compare the heating time and the reservation with the water moment subtract current time it is resulting remaining when
Between size；
Heating mode control unit controls the switching of the heating mode of water heater according to the comparison result of second comparison module.
2. device as described in claim 1, wherein
If the heating time is greater than the remaining time, heating mode control unit exports control instruction, by water heater
Heating mode be switched to quick heating mode；And/or
If the heating time is equal to the remaining time, current heating mode is maintained；And/or
If the heating time is less than the remaining time, the heating mode of water heater is switched to energy-saving mode.
3. device as claimed in claim 1 or 2, wherein the water temperature detection unit includes:
Detection module detects the current water temperature of water in water tank；And
Comparison module compares the size of the Current Temperatures Yu the predetermined temperature.
4. device as claimed in claim 1 or 2, wherein the arithmetic element includes:
Computing module, for calculating the water in water tank being heated to the reservation when current water temperature reaches the predetermined water temperature
The heating time needed for coolant-temperature gage；And
Second comparison module, for compare the heating time and the reservation with the water moment subtract current time it is resulting remaining when
Between size.
5. device as claimed in claim 3, wherein the arithmetic element includes:
Computing module, for calculating the water in water tank being heated to the reservation when current water temperature reaches the predetermined water temperature
The heating time needed for coolant-temperature gage；And
Second comparison module, for compare the heating time and the reservation with the water moment subtract current time it is resulting remaining when
Between size；
The heating mode control unit is cut according to the heating mode that the comparison result of second comparison module controls water heater
It changes.
6. device as claimed in claim 2, wherein
After current water temperature is greater than the predetermined water temperature predetermined number of degrees with respect, the water that computing module calculates in water tank again is heated to described
Reservation was compared the heating time calculated again and is subtracted and work as with the water moment with the reservation with heating time needed for coolant-temperature gage
The size of preceding resulting new remaining time at moment；
If the heating time calculated again is equal to the new remaining time, the heating mode control unit control heat
The heating system of hydrophone maintains current heating mode, and/or
If the heating time calculated again is less than the new remaining time, heating mode control unit is by water heater
Heating mode be switched to heating mode before this from current heating mode.
7. a kind of control method of water heater, comprising:
Book setting step presets the reservation of user's water with water moment and reservation coolant-temperature gage；
Water temperature detection step monitors the current water temperature of water in the water tank of water heater；
Calculation step, in the case where the current water temperature is less than the predetermined water temperature of the reservation coolant-temperature gage, calculating will
Heating time needed for water is heated to the reservation coolant-temperature gage, and compare the heating time and subtracted with the reservation with the water moment
The size of resulting remaining time at current time；Wherein, the calculation step includes:
First comparison step, the size of the current water temperature and the predetermined water temperature；
Step is calculated, when the current water temperature reaches the predetermined water temperature, calculates and the water in water tank is heated to the reservation
The heating time needed for coolant-temperature gage；And
Second comparison step compares the heating time and the reservation with the water moment and subtracts resulting remaining time at current time
Size；
In heating mode rate-determining steps, according to the heated mould of the comparison result control water heater obtained in second comparison step
The switching of formula.
8. the method for claim 7, wherein
If the heating time is greater than the remaining time, the heating mode of water heater is switched to quick heating mode；With/
Or
If the heating time is equal to the remaining time, current heating mode is maintained；And/or
If the heating time is less than the remaining time, the heating mode of water heater is switched to energy-saving mode.
9. method as claimed in claim 7 or 8, wherein the water temperature detection step includes:
Detecting step detects the current water temperature of water in water tank；And
Comparison step compares the size of the Current Temperatures Yu the predetermined temperature.
10. method as claimed in claim 7 or 8, wherein the calculation step includes:
Step is calculated, when the current water temperature reaches the predetermined water temperature, calculates and the water in water tank is heated to the reservation
The heating time needed for coolant-temperature gage；And
Second comparison step compares the heating time and the reservation with the water moment and subtracts resulting remaining time at current time
Size.
11. method as claimed in claim 9, wherein the calculation step includes:
Step is calculated, when the current water temperature reaches the predetermined water temperature, calculates and the water in water tank is heated to the reservation
The heating time needed for coolant-temperature gage；And
Second comparison step compares the heating time and the reservation with the water moment and subtracts resulting remaining time at current time
Size；
In the heating mode rate-determining steps, according to the heating mode of the comparison result control water heater in second comparison step
Switching.
12. method according to claim 8, wherein
After current water temperature is greater than the predetermined water temperature predetermined number of degrees with respect, the water calculated in water tank again is heated to the reservation water
Heating time needed for temperature, and compare the heating time calculated again and the reservation and subtract current time institute with the water moment
The size of the new remaining time obtained；
If the heating time calculated again is equal to the new remaining time, the heating system for controlling water heater is maintained
Current heating mode, and/or
If the heating time calculated again is less than the new remaining time, by the heating mode of water heater from current
Heating mode be switched to heating mode before this.
13. a kind of water heater, including control device described in any one of claims 1-6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108286819B (en) * | 2017-01-09 | 2020-10-16 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
| CN108870753B (en) * | 2017-05-08 | 2021-02-19 | 深圳市Tcl高新技术开发有限公司 | Control method of intelligent water heater and intelligent water heater |
| CN109426159B (en) * | 2017-08-21 | 2021-05-25 | 佛山市顺德区美的电热电器制造有限公司 | Control method and control system of electric appliance and electric appliance |
| CN108800595A (en) * | 2018-05-11 | 2018-11-13 | 广东万和热能科技有限公司 | Electric heater residue heating time generation method, device and electric heater |
| CN109282502B (en) * | 2018-08-30 | 2020-10-23 | 广东万和新电气股份有限公司 | Method for forecasting remaining bath time of water storage type water heater |
| CN111550932B (en) * | 2020-04-28 | 2021-11-05 | 浙江中广电器股份有限公司 | Heating water control method, processor and water storage type water heater |
| CN111879009B (en) * | 2020-06-11 | 2022-10-25 | 青岛海尔空调电子有限公司 | Control method of water heater |
| CN115930448B (en) * | 2022-10-28 | 2024-06-25 | 珠海格力电器股份有限公司 | Control method, control device, electronic equipment, water heater and storage medium |
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