CN202166118U - Hot water supply system and control device thereof - Google Patents
Hot water supply system and control device thereof Download PDFInfo
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- CN202166118U CN202166118U CN2011201983863U CN201120198386U CN202166118U CN 202166118 U CN202166118 U CN 202166118U CN 2011201983863 U CN2011201983863 U CN 2011201983863U CN 201120198386 U CN201120198386 U CN 201120198386U CN 202166118 U CN202166118 U CN 202166118U
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Abstract
Provided are a hot water supply system and a control device thereof. The hot water supply system comprises a hot water storage groove, a cold water source, a water temperature regulation device, a driving device, a plurality of induction devices, a control device and a long-distance remote control device. The water temperature regulation device is connected to the hot water storage groove and the cold water source. The induction devices detect water flow quantities and water temperatures of a cold water inlet, a hot water inlet and a water outlet of the water temperature regulation device. The control device receives information of a plurality of water temperatures and water flow quantities detected by the induction devices. And the control device controls the driving device to drive the water temperature regulation device so that water temperature and water flow quantity of the water output can be regulated according to a set value and the information of the plurality of water temperatures and water flow quantities sent by the long-distance remote control device. Therefore, stable and expected water temperature and water flow quantity of the water outlet can be obtained.
Description
Technical field
The utility model relates to the control device of a kind of hot water supply system and hot water supply system, and particularly a kind of have the hot water supply system of remote control device and a control device of hot water supply system.
Background technology
Water heater mainly is to utilize gas combustion or use electric heating so that water is carried out heat treated, supplies people's washing so that suitable water temperature to be provided.Yet influenced by the external factor of season, hydraulic pressure, gas pressure and current stability,, Chang Wufa is controlled at temperature constant state with water temperature, often causes the sometimes hot and sometimes cold of water temperature, for the user, produces inconvenience greatly.
Existing have the water heater that constant temperature is controlled, and is to have a cold water inlet pipe, and it is used for cooling water and is input into the inner water tank of water heater.Water heater utilization burning gas is to heat the water that stores in the water tank, and the hot water in the water tank after the heating then is the hot water delivery pipe output by water heater.In order to detect the water temperature of water heater output, the hot water delivery pipe is last can be equiped with a temperature sensor, and is equiped with the gas flow controller in addition to control the gas flow controller with the control power consumption.In addition, utilize a water temperature regulater to be electrically connected between temperature sensor and the gas flow controller, make water temperature regulater control gas flow controller, use the adjustment output water temperature and maintain desired set value to increase or to reduce gas flow.Yet above-mentioned utilization adjustment gas flow is with the means of control water temperature and can't keep the temperature of water temperature very accurately, makes can have bigger error range existence between the water temperature of actual water temperature and expection.
And; When the water heater of controlling in the above-mentioned constant temperature of indoor use as the user carries out water; The user also can't in time change the leaving water temperature of water heater, so the user must utilize the hot and cold water water outlet proportion of direct adjustment tap to reach the effect of timely change leaving water temperature.Yet when the hot and cold water water outlet proportion with tap adjusted coolant-temperature gage, the user all needed to sound out temperature with health (like hand) contact water outlet current in person, leaving water temperature is adjusted to the satisfied stage of user.Thus, the user will be easily improper because of the hot and cold water water outlet proportion of adjustment tap, cause the water outlet water temperature in a moment to cross cold or overheated phenomenon, even therefore cause and scald unexpected the generation.
The utility model content
The utility model provides a kind of hot water supply system, uses the adjustment that solves existing leaving water temperature and need utilize the hot and cold water water outlet proportion of user with the next suitably adjustment of self health test water temperature tap, so is prone to cause the problem of scalding unexpected generation.
To achieve these goals, the utility model provides a kind of hot water supply system, comprises:
One hot water storage tank;
One cold water source;
One water temperature regulation device, a delivery port that has a cold water inlet, a hot water inlet and be communicated with this cold water inlet and this hot water inlet, this hot water inlet connects this hot water storage tank, and this cold water inlet connects this cold water source;
One drive unit is arranged at this water temperature regulation device, and this drive unit drives the cold water flow of this this cold water inlet of water temperature regulation device adjustment and this hot water inlet's hot water flow;
A plurality of induction installations are arranged at this cold water inlet, this hot water inlet and this delivery port place respectively, and those induction installations detect the discharge and the water temperature of this cold water inlet, this hot water inlet and this delivery port;
One control device electrically connects this drive unit, and this control device receives many measured water temperatures of those induction installations and flow information; And
One remote control device sends one and sets numerical value to this control device, and this control device is controlled this drive unit according to this settings numerical value and those water temperatures and flow information and driven water temperature and the flow that this water temperature regulation device is adjusted this delivery port.
Above-mentioned hot water supply system, wherein, this remote control device also has an input block and an output unit, and wherein this output unit receives this setting numerical value of being imported by this input block, and should set numerical value and be sent to this control device.
Above-mentioned hot water supply system; Wherein, This remote control device also has one first receiving element and a display unit; This first receiving element receives by those water temperatures and flow information that this control device obtained, and this display unit shows those water temperatures and flow information and this setting numerical value.
Above-mentioned hot water supply system, wherein, this control device has one second receiving element, and this second receiving element receives those water temperatures and flow information and should set numerical value.
Above-mentioned hot water supply system; Wherein, This control device has a computing unit and and controls the unit, and this computing unit calculates one according to those water temperatures and flow information and this setting numerical value and controls instruction, and this is controlled the unit and controls this drive unit of commands for controlling according to this.
To achieve these goals, the utility model also provides a kind of control device of hot water supply system, comprises:
One water temperature regulation device, a delivery port that has a cold water inlet, a hot water inlet and be communicated with this cold water inlet and this hot water inlet;
One drive unit is arranged at this water temperature regulation device, and this drive unit drives the cold water flow of this this cold water inlet of water temperature regulation device adjustment and this hot water inlet's hot water flow;
A plurality of induction installations are arranged at this cold water inlet, this hot water inlet and this delivery port place respectively, and those induction installations detect the discharge and the water temperature of this cold water inlet, this hot water inlet and this delivery port;
One control device electrically connects this drive unit, and this control device receives many measured water temperatures of those induction installations and flow information; And
One remote control device sends one and sets numerical value to this control device, and this control device is controlled this drive unit according to this settings numerical value and those water temperatures and flow information and driven water temperature and the flow that this water temperature regulation device is adjusted this delivery port.
The control device of above-mentioned hot water supply system, wherein, this remote control device also has an input block and an output unit, and wherein this output unit receives this setting numerical value of being imported by this input block, and should set numerical value and be sent to this control device.
The control device of above-mentioned hot water supply system; Wherein, This remote control device also has one first receiving element and a display unit; This first receiving element receives by those water temperatures and flow information that this control device obtained, and this display unit shows those water temperatures and flow information and this setting numerical value.
The control device of above-mentioned hot water supply system, wherein, this control device has one second receiving element, and this second receiving element receives those water temperatures and flow information and should set numerical value.
Above-mentioned hot water supply system; Wherein, This control device has a computing unit and and controls the unit, and this computing unit calculates one according to those water temperatures and flow information and this setting numerical value and controls instruction, and this is controlled the unit and controls this drive unit of commands for controlling according to this.
According to the hot water supply system that above-mentioned the utility model disclosed; The user is leaving water temperature or the water flow that the mat remote control device is imported expectation; Control device is adjusted the ratio of hot water or cold water's flow of inlet water of water temperature regulation device according to the expectation numerical value that remote control device transmits, and then makes leaving water temperature or flow reach user's expectation.So such hot water supply system; Can make the user utilize remote control device to control water temperature and discharge to reach stable desired value; Avoid testing water temperature, caused possible scald injury with hot water or cold water's water outlet proportion of adjusting tap voluntarily with self health.
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail, but not as the qualification to the utility model.
Description of drawings
Shown in Figure 1 is structure block diagram according to the hot water supply system of the utility model one embodiment.
Wherein, Reference numeral
10 hot water supply systems
100 water temperature regulation devices
110 cold water inlets
120 hot water inlets
130 delivery ports
200 drive units
300 induction installations
400 control device
410 control the unit
420 computing units
430 second receiving elements
500 remote control devices
510 display units
520 input blocks
530 output units
540 first receiving elements
600 hot water storage tanks
700 cold water sources
The specific embodiment
Below in conjunction with accompanying drawing the structural principle and the operation principle of the utility model are done concrete description:
Please with reference to Fig. 1, shown in Figure 1 is structure block diagram according to the hot water supply system of the utility model one embodiment.
The hot water supply system 10 of present embodiment, it comprises a hot water storage tank 600, a cold water source 700, a water temperature regulation device 100, a drive unit 200, a plurality of induction installation 300, a control device 400 and a remote control device 500.
The water temperature regulation device 100 of present embodiment has a cold water inlet 110, a hot water inlet 120 and a delivery port 130, and cold water inlet 110, hot water inlet 120 and delivery port 130 are to interconnect.Cold water inlet 110 connects cold water source 700, and cold water source 700 can be but be not limited to general water supply water tower that cold water source 700 provides cold water to get into water temperature regulation device 100 via cold water inlet 110.Hot water inlet 120 connects hot water storage tank 600, and hot water storage tank 600 has been deposited hot water, and hot water storage tank 600 provides hot water to get into water temperature regulation device 100 via hot water inlet 120.Wherein, hot water storage tank 600 can be an aqua storage tank, and its hot water source can utilize other attached firing equipment and with temperature of cold water rises to hot water, form through solar energy heating or electric heating heating such as the hot water source of hot water storage tank 600 cold water capable of using.Perhaps, hot water storage tank 600 itself is the heater with heating function, such as gas heater, electric heater or solar water heater, but not as limit.
Cold water and hot water get in the water temperature regulation device 100 via cold water inlet 110 and hot water inlet 120 respectively; Cold water mixes and heat exchange with hot water and in water temperature regulation device 100, and by using for the user outside the delivery port 130 discharge water temperature regulation devices 100.Wherein, because cold water inlet 110, hot water inlet 120 and delivery port 130 are to interconnect, so the sum total of the cold water flow of inlet water of cold water inlet 110 and hot water inlet's 120 hot water flow of inlet water, the water yield that is delivery port 130 is summed up.For instance, the cold water flow of inlet water of supposing cold water inlet 110 is V1, and hot water inlet 120 hot water flow of inlet water is V2, the water flow V3 of delivery port 130, and then V1, V2 and V3 satisfy relational expression one: V1+V2=V3.
And; Because cold water and hot water are in water temperature regulation device 100, to mix with heat exchange to be discharged by delivery port 130, the leaving water temperature of the current of therefore being discharged by delivery port 130 is to decide by getting into the interior cold water of water temperature regulation device 100 and the water yield and the temperature of hot water.Further, the temperature of supposing cold water is T1, and the temperature of hot water is T2, and the leaving water temperature of delivery port 130 is T3, then according to law of conservation of energy, need satisfy relational expression two: T1V1+T2V2=T3V3.
Can obtain following formula: T1V1+T2V2=T3 (V1+V2) by relational expression one and relational expression two.Above-mentioned formula can obtain relational expression three: T3=(T1V1+T2V2)/(V1+V2) through after putting in order.Therefore, the parameter that influences leaving water temperature T3 is cold water temperature T1, cold water flow of inlet water V1, hot water temperature T2 and hot water flow of inlet water V2.Utilize the adjustment above-mentioned parameter, all can change leaving water temperature T3.
In brief, roughly keep at cold water temperature T1 and hot water temperature T2 under the state of stable definite value, the ratio of coolant-temperature gage T3 cold water flow of inlet water capable of using V1 and hot water flow of inlet water V2 is arranged in pairs or groups and is adjusted.In other words, water temperature regulation device 100 can be controlled the cold water flow of inlet water of cold water inlet 110 and hot water inlet 120 hot water flow of inlet water, with the effect of the leaving water temperature that adjusts the mouth of a river 130.
In addition, a plurality of induction installations 300 are to be arranged at cold water inlet 110, hot water inlet 120 and delivery port 130 respectively.Induction installation 300 is in order to information such as the leaving water temperature T3 of the cold water temperature T1 that detects cold water inlet 110 and cold water flow of inlet water V1, hot water inlet's 120 hot water temperature T2 and hot water flow of inlet water V2 and delivery port 130 and water flow V3.
Drive unit 200 is arranged at water temperature regulation device 100, and drive unit 200 is controlled the cold water flow of inlet water V1 of cold water inlets 110 and hot water inlet 120 hot water flow of inlet water V2 in order to drive water temperature regulation device 100.
Control device 400 electrically connects drive unit 200; Control device 400 receives the information of measured cold water temperature T1, cold water flow of inlet water V1, hot water temperature T2, hot water flow of inlet water V2, leaving water temperature T3 and water flow V3 of induction installation 300, and controls drive unit 200 according to above-mentioned information and drive water temperature regulation devices 100.Remote control device 500 usefulness in remote control control device 400, can reach state that user expect to adjust coolant-temperature gage T3 and water flow V3 for the user.
Please continue with reference to Fig. 1.In detail, control device 400 also comprises controls unit 410, a computing unit 420 and one second receiving element 430.Remote control device 500 also comprises a display unit 510, an input block 520, an output unit 530 and one first receiving element 540.
Wherein, display unit 510 can be a screen, and input block 520 can be a button.First receiving element 540 and second receiving element 430 can receive the information value of cold water temperature T1, cold water flow of inlet water V1, hot water temperature T2, hot water flow of inlet water V2, leaving water temperature T3 and water flow V3 that induction installation sends respectively.Display unit 510 optionally shows the information of above-mentioned current temperature and flow.For instance, the display unit 510 of user's remote control device 500 capable of using and only see cold water temperature T1, hot water temperature T2 and leaving water temperature T3, and judge whether to adjust the setting value of coolant-temperature gage T3 according to present leaving water temperature T3.Perhaps, the user utilizes the display unit 510 of remote control device 500 except learning cold water temperature T1, hot water temperature T2 and leaving water temperature T3, and the information that comprises cold water flow of inlet water V1, hot water flow of inlet water V2 and water flow V3 also can obtain in the lump.
The leaving water temperature T3 and the water flow V3 of user's input block 520 input expectations capable of using; And the setting numerical value that the user imported (like above-mentioned leaving water temperature T3 or water flow V3) is sent to control device 400 via output unit 530, and 430 of second receiving elements of control device 400 receive this and set numerical value.Computing unit 420 by the setting numerical value of output unit 530 places reception and cold water temperature T1, cold water flow of inlet water V1, hot water temperature T2 and the hot water flow of inlet water V2 that is received by induction installation 300 places, is controlled instruction to calculate acquisition one according to second receiving element 430.Control unit 410 and control instruction and accessory drive 200, make drive unit 200 drive water temperature regulation device 100 suitable control cold water flow of inlet water V1 and hot water flow of inlet water V2 according to this.
For instance, if cold water temperature T1 is 20 degree, hot water temperature T2 is 80 degree, and cold water flow of inlet water V1 is 100 milliliters of per seconds, and hot water flow of inlet water V2 is 100 milliliters of per seconds, and then the leaving water temperature T3 of this moment is 50 degree, and water flow V3 is 200 milliliters of per seconds.
Suppose the user feel water temperature too hot and the expectation with leaving water temperature T3 come down to 35 the degree; And expectation water flow V3 can keep current flux; Then only need temperature manipulation function input 35 degree to input block 520; Then computing unit 420 just can be according to the numerical value of these water yields and water temperature and the rule of relational expression three, and then calculates one and optimally control instruction.Control unit 410 and control commands for controlling drive unit 200 driving water temperature regulation devices 100 according to this; Make cold water flow of inlet water V1 that lifting is reduced to 50 milliliters of per seconds for 150 milliliters of per seconds and hot water flow of inlet water V2; Make water flow V3 keep 200 milliliters of per seconds, leaving water temperature T3 then drops to 35 degree because of the minimizing of the lifting of cold water flow of inlet water V1 and hot water flow of inlet water V2.
If the user thinks that the too little and expectation of current promotes water flow V3 and is 300 milliliters of per seconds; And expectation leaving water temperature T3 can keep present temperature; Then only need the water yield manipulation function of input block 520 is imported 300 milliliters; Then computing unit 420 just can be according to the numerical value of these water yields and water temperature and the rule of relational expression three, and then calculates one and optimally control instruction.Control unit 410 and control commands for controlling drive unit 200 driving water temperature regulation devices 100 according to this; Make cold water flow of inlet water V1 promote and be 150 milliliters of per seconds to 150 milliliters of per seconds and hot water flow of inlet water V2 promote simultaneously; Make water flow V3 promote and be 300 milliliters of per seconds, and leaving water temperature T3 is maintained 50 degree.
If the user thinks that simultaneously current are too little and water temperature is too high; Then can be simultaneously to the water yield of input block 520 and the water temperature and the water yield of temperature manipulation function input expectation; Computing unit 420 just can be according to the numerical value of these water yields and water temperature and the rule of relational expression three, and then calculates one and optimally control instruction.
If it is the highest that user's expectation transfers to water temperature, then can be to the temperature manipulation function input highest temperature instruction of input block 520.At this moment, computing unit 420 is directly assigned the instruction of cutting off cold water flow of inlet water V1, even also cold water flow of inlet water V1 is zero and provide the required water flow V3 in the mouth of a river by hot water flow of inlet water V2 fully.Otherwise, minimum if user's expectation transfers to water temperature, then can be to the temperature manipulation function input lowest temperature instruction of input block 520.At this moment, computing unit 420 is directly assigned the instruction of cutting off hot water flow of inlet water V2, even also hot water flow of inlet water V2 is zero and provide the required water flow V3 in the mouth of a river by cold water flow of inlet water V1 fully.
In addition; The display unit 510 of remote control device 500 also can have the miscue function; When leaving water temperature T3 that also even the user imported or water flow V3 had exceeded the scope that water temperature regulation device 100 can reach, display unit 510 can show that just error message informs the user.For instance, the leaving water temperature T3 that imports expectation as the user is 90 when spending, and hot water temperature T2 has only 80 degree.The expectation leaving water temperature T3 that this moment, the user imported has just exceeded the scope that water temperature regulation device 100 can reach, and display unit 510 can show that just error message prompting user revises.
In addition, in the time of the continuous water outlet of delivery port 130, the hot water temperature T2 of hot water storage tank 600 and the cold water temperature T1 of cold water source may have a little difference variation.At this moment; Control device 400 is through the monitoring of 300 couples of hot water temperature T2 of induction installation with cold water temperature T1; Can revise cold water flow of inlet water V1 and hot water flow of inlet water V2 at any time, so that leaving water temperature T3 can be maintained at a temperature constant state, so that the user to be provided good quality of water supply.
According to the hot water supply system that above-mentioned present embodiment disclosed; The user is leaving water temperature or the water flow that the mat remote control device is imported expectation; Control device is adjusted the ratio of hot water or cold water's flow of inlet water of water temperature regulation device according to the expectation numerical value that remote control device transmits, and then makes leaving water temperature or flow reach user's expectation.And control device to revise hot water or cold water's flow of inlet water at any time, makes leaving water temperature can stably be maintained at temperature constant state through induction installation monitoring hot water or cold water temperature.So such hot water supply system; Can make the user utilize remote control device to control water temperature and discharge to reach stable desired value; The person of avoiding the use of tests water temperature with self health, is caused possible scald injury with hot water or cold water's water outlet proportion of adjusting tap voluntarily.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. a hot water supply system is characterized in that, comprises:
One hot water storage tank;
One cold water source;
One water temperature regulation device, a delivery port that has a cold water inlet, a hot water inlet and be communicated with this cold water inlet and this hot water inlet, this hot water inlet connects this hot water storage tank, and this cold water inlet connects this cold water source;
One drive unit is arranged at this water temperature regulation device, and this drive unit drives the cold water flow of this this cold water inlet of water temperature regulation device adjustment and this hot water inlet's hot water flow;
A plurality of induction installations are arranged at this cold water inlet, this hot water inlet and this delivery port place respectively, and those induction installations detect the discharge and the water temperature of this cold water inlet, this hot water inlet and this delivery port;
One control device electrically connects this drive unit, and this control device receives many measured water temperatures of those induction installations and flow information; And
One remote control device sends one and sets numerical value to this control device, and this control device is controlled this drive unit according to this settings numerical value and those water temperatures and flow information and driven water temperature and the flow that this water temperature regulation device is adjusted this delivery port.
2. hot water supply system according to claim 1; It is characterized in that; This remote control device also has an input block and an output unit, and wherein this output unit receives this setting numerical value of being imported by this input block, and should set numerical value and be sent to this control device.
3. hot water supply system according to claim 1; It is characterized in that; This remote control device also has one first receiving element and a display unit; This first receiving element receives by those water temperatures and flow information that this control device obtained, and this display unit shows those water temperatures and flow information and this setting numerical value.
4. hot water supply system according to claim 1 is characterized in that, this control device has one second receiving element, and this second receiving element receives those water temperatures and flow information and should set numerical value.
5. hot water supply system according to claim 1; It is characterized in that; This control device has a computing unit and and controls the unit; This computing unit calculates one according to those water temperatures and flow information and this setting numerical value and controls instruction, and this is controlled the unit and controls this drive unit of commands for controlling according to this.
6. the control device of a hot water supply system is characterized in that, comprises:
One water temperature regulation device, a delivery port that has a cold water inlet, a hot water inlet and be communicated with this cold water inlet and this hot water inlet;
One drive unit is arranged at this water temperature regulation device, and this drive unit drives the cold water flow of this this cold water inlet of water temperature regulation device adjustment and this hot water inlet's hot water flow;
A plurality of induction installations are arranged at this cold water inlet, this hot water inlet and this delivery port place respectively, and those induction installations detect the discharge and the water temperature of this cold water inlet, this hot water inlet and this delivery port;
One control device electrically connects this drive unit, and this control device receives many measured water temperatures of those induction installations and flow information; And
One remote control device sends one and sets numerical value to this control device, and this control device is controlled this drive unit according to this settings numerical value and those water temperatures and flow information and driven water temperature and the flow that this water temperature regulation device is adjusted this delivery port.
7. the control device of hot water supply system according to claim 6; It is characterized in that; This remote control device also has an input block and an output unit, and wherein this output unit receives this setting numerical value of being imported by this input block, and should set numerical value and be sent to this control device.
8. the control device of hot water supply system according to claim 6; It is characterized in that; This remote control device also has one first receiving element and a display unit; This first receiving element receives by those water temperatures and flow information that this control device obtained, and this display unit shows those water temperatures and flow information and this setting numerical value.
9. the control device of hot water supply system according to claim 6 is characterized in that, this control device has one second receiving element, and this second receiving element receives those water temperatures and flow information and should set numerical value.
10. the control device of hot water supply system according to claim 6; It is characterized in that; This control device has a computing unit and and controls the unit; This computing unit calculates one according to those water temperatures and flow information and this setting numerical value and controls instruction, and this is controlled the unit and controls this drive unit of commands for controlling according to this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201983863U CN202166118U (en) | 2011-06-07 | 2011-06-07 | Hot water supply system and control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201983863U CN202166118U (en) | 2011-06-07 | 2011-06-07 | Hot water supply system and control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166118U true CN202166118U (en) | 2012-03-14 |
Family
ID=45801938
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201983863U Expired - Lifetime CN202166118U (en) | 2011-06-07 | 2011-06-07 | Hot water supply system and control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202166118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466027A (en) * | 2014-09-09 | 2016-04-06 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and constant temperature control device and method thereof |
| CN108662790A (en) * | 2018-04-03 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | A kind of water temperature is shown and control method, water heater and storage medium |
-
2011
- 2011-06-07 CN CN2011201983863U patent/CN202166118U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466027A (en) * | 2014-09-09 | 2016-04-06 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and constant temperature control device and method thereof |
| CN108662790A (en) * | 2018-04-03 | 2018-10-16 | 芜湖美的厨卫电器制造有限公司 | A kind of water temperature is shown and control method, water heater and storage medium |
| CN108662790B (en) * | 2018-04-03 | 2020-07-07 | 芜湖美的厨卫电器制造有限公司 | Water temperature display and control method, water heater and storage medium |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |