CN218722261U - Dual-mode electric water heater with cold water and hot water mixed - Google Patents
Dual-mode electric water heater with cold water and hot water mixed Download PDFInfo
- Publication number
- CN218722261U CN218722261U CN202222884555.XU CN202222884555U CN218722261U CN 218722261 U CN218722261 U CN 218722261U CN 202222884555 U CN202222884555 U CN 202222884555U CN 218722261 U CN218722261 U CN 218722261U
- Authority
- CN
- China
- Prior art keywords
- water
- hot
- cold
- electric
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model discloses a bimodulus electric water heater of hot and cold water mixture, including inner bag, cold inlet tube and hot outlet pipe communicate with the inner bag respectively, and the inner bag is equipped with electric heating element, still includes the instantaneous electric heater and mixes water proportional control valve, and the instantaneous electric heater communicates with hot outlet pipe, mixes water proportional control valve and is equipped with cold water inlet, hot water inlet and mixes the water outlet pipe, cold water inlet and cold inlet tube intercommunication, hot water inlet and instantaneous electric heater intercommunication. The utility model discloses the beneficial effect who gains: the two working modes are realized, the water yield of hot water is effectively improved, the endurance time of the water heater for supplying hot water is greatly prolonged, and the advantage of longer endurance time is achieved. The dual-mode electric water heater with the mixed cold water and the mixed hot water can control the proportion of the water quantity sent into the mixed water outlet pipe by the instant electric heater and the cold water inlet pipe through the mixed water proportion adjusting valve when water is discharged, the stability of the water temperature can be further improved, the advantage of stable water discharging temperature is achieved, and constant-temperature water discharging is achieved.
Description
Technical Field
The utility model relates to a technical field of water heater, concretely relates to hot and cold water mixing's bimodulus electric water heater.
Background
At present, a common water storage type electric water heater on the market heats and stores hot water before each use, and is used after being heated to a specified temperature. The requirement of long-time bathing can not be met due to the limitation of the water storage amount, and the endurance time of the water heater is shorter when the environmental temperature is lower particularly in winter.
The utility model discloses a chinese utility model patent that publication number is CN201050864Y discloses a secondary heating's electric water heater, and it is including the inner water container that is connected with the inlet tube and goes out the water end, is provided with the electric heating tube in the inner water container, is provided with electric heating tube temperature sensor in the inner water container, goes out to be connected with instant heating type water on the water end and heats the sub-assembly, goes out to serve to be provided with the discharge detection switch who connects instant heating type water and heat the sub-assembly. When the tap or the shower head is turned on, the warm water in the water container enters the instant heating type water heating assembly, the flow detection switch controls the electric heating pipe in the instant heating type water heating assembly to be electrified and heated, and the water flowing through the sleeve is heated, so that the water yield of the hot water is increased.
In the use process of the electric water heater, the water temperature is often changed. When the water temperature of the inner container is higher, the instant water heating assembly can further heat the water discharged by the inner container, so that the temperature is easily overhigh, and the endurance time of water supply of the water heater is not prolonged; when the water temperature of the inner container is low, the temperature of the outlet water of the instant heating type water heating assembly is reduced, and the use experience of a user is reduced due to the temperature of the water which is suddenly cooled and suddenly heated. Therefore, the water heater in the prior art has the problems of unstable water outlet temperature and short endurance time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a hot and cold water mixing's bimodulus electric water heater, it includes inner bag, cold inlet tube, hot outlet pipe, instantaneous electric heater and mixes water proportion regulating valve, and this hot and cold water mixing's bimodulus electric water heater has the advantage that the time of endurance is longer and the temperature of play water is stable.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides a bimodulus electric water heater of hot and cold water mixture, includes inner bag, cold inlet tube and hot outlet pipe communicate with the inner bag respectively, and the inner bag is equipped with electric heating element, still includes instant heating electric heater and mixes water proportional control valve, and instant heating electric heater and hot outlet pipe intercommunication mix water proportional control valve and be equipped with cold water inlet, hot water inlet and mix the water outlet pipe, cold water inlet and cold inlet tube intercommunication, hot water inlet and instant heating electric heater intercommunication.
By such an arrangement: the two working modes are realized, the water yield of hot water is effectively improved, the endurance time of the water heater for supplying hot water is greatly prolonged, and the advantage of longer endurance time is achieved. The dual-mode electric water heater with the mixed cold water and the mixed hot water can control the proportion of the water quantity sent into the mixed water outlet pipe by the instant electric heater and the cold water inlet pipe through the mixed water proportion adjusting valve when water is discharged, the stability of the water temperature can be further improved, the advantage of stable water discharging temperature is achieved, and constant-temperature water discharging is achieved.
Preferably, the cold water inlet is provided with a cold water mixing temperature sensor and a cold water mixing flow sensor, and the hot water inlet is provided with a hot water mixing temperature sensor and a hot water mixing flow sensor.
By such an arrangement: the water mixing proportion adjusting valve provides data support for adjusting the water temperature of the water mixing outlet pipe, and the proportion of cold water and hot water entering the water mixing proportion adjusting valve is conveniently controlled, so that the water temperature can be conveniently adjusted through the water mixing proportion adjusting valve.
Preferably, the electric heating system further comprises a control module, and the control module is respectively and electrically connected with the cold water-mixed water temperature sensor, the cold water-mixed water flow sensor, the hot water-mixed water temperature sensor, the hot water-mixed water flow sensor, the water-mixed proportion regulating valve, the instant electric heater and the electric heating element.
By such an arrangement: through control module's setting to can control muddy water proportion control valve, instant electric heater and electric heating element at control module presetting the procedure, thereby play the effect of conveniently adjusting the temperature, enable the temperature more stable.
Preferably, the mixed water outlet pipe is provided with an outlet water temperature sensor.
By such an arrangement: the temperature in the mixed water outlet pipe can be conveniently monitored, and the effect of convenience in use is achieved.
Preferably, the outlet water temperature sensor is electrically connected with the control module.
By such an arrangement: the water outlet temperature signal is collected, and the water temperature in the reversely pushed mixed water outlet pipe is compared with the water temperature monitored by the water outlet temperature sensor for the control module, so that the control precision of the temperature in the mixed water outlet pipe is further improved, and the stability of the water temperature in the mixed water outlet pipe is favorably improved.
Preferably, the hot water outlet pipe is provided with a hot water temperature sensor.
By such an arrangement: the temperature in the hot outlet pipe can be conveniently monitored, and the effect of convenient use is achieved.
Preferably, the hot water temperature sensor is electrically connected with the control module.
By such an arrangement: the working state of the water heater can be conveniently monitored, and the effect of improving safety can be achieved.
Preferably, the mixing proportion regulating valve comprises a mixing valve and a driving part, the driving part is installed on the mixing valve, and an output shaft of the driving part is connected with a valve core of the mixing valve.
By such an arrangement: the function of adjusting the proportion of hot water and cold water entering the water mixing and discharging pipe through the control module is realized.
Preferably, the water mixing device further comprises a shell, the inner container is fixedly installed in the shell, and the cold water inlet pipe and the water mixing outlet pipe extend out of the shell.
By such an arrangement: the inner container and the pipeline are protected, the service life is prolonged, and the appearance is improved.
Preferably, the electric heater further comprises a housing, i.e. the heater is disposed within the housing.
By such an arrangement: the service life is prolonged, and the aesthetic property can be improved.
Compared with the prior art, the utility model discloses profitable technological effect has been obtained:
1. when hot water is not used, the water in the inner container is heated by adopting the mode of heating the electric heating element, and when hot water is used, the water is heated by adopting the mode of heating the instant electric heater, so that two working modes are realized, the water yield of the hot water is effectively improved, the endurance time of the water heater for supplying the hot water is greatly prolonged, and the advantage of longer endurance time is achieved.
2. The dual-mode electric water heater with the mixed cold and hot water can control the proportion of the water quantity sent into the mixed water outlet pipe by the instant electric heater and the cold water inlet pipe through the mixed water proportion adjusting valve when water is discharged, so that the dual-mode electric water heater with the mixed cold and hot water can play a role in adjusting the dual-mode electric water heater with the mixed cold and hot water, the stability of the water temperature can be further improved, the advantage of stable water temperature of discharged water is achieved, and constant-temperature water discharge is realized.
Drawings
Fig. 1 is a schematic structural diagram of a dual-mode electric water heater with mixing of hot water and cold water according to an embodiment of the present invention.
Wherein, the technical characteristics that each reference numeral refers to are as follows:
11. an inner container; 12. a cold water inlet pipe; 13. a hot water outlet pipe; 14. an electric heating element; 15. a housing; 21. an instantaneous electric heater; 22. a mixed water proportion regulating valve; 23. a cold water inlet; 24. a hot water inlet; 25. a mixed water outlet pipe; 26. a drive member; 27. a water mixing valve; 31. a cold water mixing temperature sensor; 32. a cold mix flow sensor; 33. a hot water mixture temperature sensor; 34. a hot mix flow sensor; 35. an effluent temperature sensor; 36. a hot water temperature sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Referring to fig. 1, the dual-mode electric water heater for mixing cold water and hot water comprises an inner container 11, a cold water inlet pipe 12, a hot water outlet pipe 13, an instant electric heater 21, a mixed water proportion adjusting valve 22, a control module and an outer shell 15.
The cold water inlet pipe 12 and the hot water outlet pipe 13 are respectively communicated with the inner container 11, the inner container 11 is provided with an electric heating element 14, and the electric heating element 14 is an electric heating pipe. The instantaneous electric heater 21 is an instantaneous electric heating tube. The instantaneous electric heater 21 is communicated with the hot water outlet pipe 13, the mixed water proportion adjusting valve 22 is provided with a cold water inlet 23, a hot water inlet 24 and a mixed water outlet pipe 25, the cold water inlet 23 is communicated with the cold water inlet pipe 12, and the hot water inlet 24 is communicated with the instantaneous electric heater 21. The mixing proportion adjusting valve 22 comprises a mixing valve 27 and a driving element 26, wherein the driving element 26 is installed on the mixing valve 27, and an output shaft of the driving element 26 is connected with a valve core of the mixing valve 27. The driving element 26 is a motor, and the driving element 26 drives the valve core of the mixing valve 27 to rotate, so that the ratio of hot water and cold water entering the mixing water outlet pipe 25 is changed.
The cold water with lower temperature in the cold water inlet pipe 12 and the hot water with higher temperature in the instant electric heater 21 respectively enter the mixed water proportion adjusting valve 22 through the cold water inlet 23 and the hot water inlet 24 to be mixed into water with proper temperature, and then the water is discharged through the mixed water outlet pipe 25 to be used by a user. The mixed water proportion adjusting valve 22 is used for adjusting the proportion of the water quantity sent into the mixed water outlet pipe 25 by the cold water inlet pipe 12 and the instant electric heater 21.
The cold water inlet 23 is provided with a cold water/water mixture temperature sensor 31 and a cold water/water mixture flow sensor 32, and the hot water inlet 24 is provided with a hot water/water mixture temperature sensor 33 and a hot water/water mixture flow sensor 34. The cold water mixing temperature sensor 31 is used for detecting the temperature of the water in the cold water inlet 23 and sending cold water mixing temperature information to the control module. The cold water mixture flow sensor 32 is used for detecting the temperature of the water in the cold water inlet 23 and sending cold water mixture flow information to the control module. The hot mixed water temperature sensor 33 is used for detecting the temperature of the water in the hot water inlet 24 and sending the hot mixed water temperature information to the control module. The hot mixed water flow sensor 34 is used for detecting the temperature of the water in the hot water inlet 24 and sending hot mixed water flow information to the control module.
The control module is respectively electrically connected with the cold water and water mixing temperature sensor 31, the cold water and water mixing flow sensor 32, the hot water and water mixing temperature sensor 33, the hot water and water mixing flow sensor 34, the water mixing proportion regulating valve 22, the hot electric heater 21 and the electric heating element 14. The control module may be a control unit including, but not limited to, one or more of a single chip, a microprocessor and a PLC, and is configured to receive the sensor signal and control the instantaneous electric heater 21, the electric heating element 14 and the water mixing ratio adjusting valve 22 according to the sensor signal and a preset program. The control module is electrically connected with the electric heating element 14 and the instant electric heater 21 and controls the on-off of the power supply of the electric heating element 14. The control module is electrically connected with the mixed water proportion regulating valve 22 and controls the proportion of hot water and cold water entering the mixed water outlet pipe 25 through the mixed water proportion regulating valve 22.
The water mixing and discharging pipe 25 is provided with a water outlet temperature sensor 35, and the water outlet temperature sensor 35 is electrically connected with the control module. The outlet water temperature sensor 35 is used for monitoring the water temperature in the mixed water outlet pipe 25 and sending an outlet water temperature signal to the control module. The hot water outlet pipe 13 is provided with a hot water temperature sensor 36, and the hot water temperature sensor 36 is electrically connected with the control module. The hot water temperature sensor 36 is used for detecting the temperature of the water in the hot water outlet pipe 13 and sending a hot water temperature signal to the control module.
The inner container 11 is fixedly arranged in the outer shell 15, and the cold water inlet pipe 12 and the mixed water outlet pipe 25 extend out of the outer shell 15. That is, the electric heater 21 is disposed in the casing 15, that is, the electric heater 21 is fixedly connected to the outer wall of the inner container 11.
The specific working process is as follows:
before use, a user starts the machine and sets the temperature of the whole machine and the temperature of bath water, the control module starts to control the electric heating element 14 to heat according to a preset program, and when the temperature of the water in the inner container 11 reaches the temperature of the whole machine, the control module controls the electric heating element 14 to cut off the power supply to stop heating. When the user uses water (when the user uses water, the hot mixed water flow sensor 34 detects that the water flow is more than 0.1L/min, so that whether the user uses water or not can be monitored through the hot mixed water flow sensor 34), no matter whether the water temperature of the inner container 11 reaches the temperature of the whole machine or not, the control module immediately switches to the instant electric heater 21 for heating, and the electric heating element 14 is powered off. The water in the inner container 11 is heated again by the electric heater 21, so that the water temperature is raised, i.e. the temperature of the water outlet end of the electric heater 21 is higher than the bathing water temperature set by the user. At this time, the control module collects the cold water and water mixing temperature information, the cold water and water mixing flow information, the hot water and water mixing temperature information and the hot water and water mixing flow information through the cold water and water mixing temperature sensor 31, the cold water and water mixing flow sensor 32, the hot water and water mixing temperature information and the hot water and water mixing flow information, and reversely pushes out the water temperature of the water mixing outlet pipe 25 according to a preset program, wherein the calculation mode of the reverse pushing program in the embodiment is as follows: the water temperature of the mixing water outlet pipe 25 = (water flow of the hot water inlet 24 × water flow of the hot water inlet 24 + water flow of the cold water inlet 23 × water temperature of the cold water inlet 23)/(water flow of the hot water inlet 24 + water flow of the cold water inlet 23). If the water temperature of the mixed water outlet pipe 25 is lower than the bathing temperature, the control module controls the mixed water proportion regulating valve 22 to increase the proportion of the water quantity sent into the mixed water outlet pipe 25 by the instant electric heater 21, and the water temperature of the mixed water outlet pipe 25 is increased; if the water temperature of the mixed water outlet pipe 25 is higher than the bathing temperature, the control module controls the mixed water proportion adjusting valve 22 to reduce the proportion of the water quantity sent into the mixed water outlet pipe 25 by the instant electric heater 21, and reduces the water temperature of the mixed water outlet pipe 25.
The present embodiment has the following advantages:
when hot water is not used, the water in the liner 11 is heated by adopting the mode of heating the electric heating element 14, and when hot water is used, the water is heated by adopting the mode of heating the instant electric heater 21, so that two working modes are realized, the water yield of the hot water is effectively improved, the endurance time of the water heater for supplying hot water is greatly prolonged, and the advantage of longer endurance time is achieved.
When water is discharged, the hot and cold water mixing dual-mode electric water heater can control the proportion of the water quantity sent into the water mixing water outlet pipe 25 by the instant electric heater 21 and the cold water inlet pipe 12 through the water mixing proportion adjusting valve 22, so that the effect of adjusting the hot and cold water mixing dual-mode electric water heater can be achieved, the stability of the water temperature can be further improved, the advantage of stable water temperature of discharged water is achieved, and constant-temperature water discharge is realized.
Through cold water mixing temperature sensor 31, cold water mixing flow sensor 32, hot water mixing temperature sensor 33 and hot water mixing flow sensor 34, can monitor the temperature and the flow of the water that gets into in the muddy water proportional control valve 22 to the proportion of the cold water and the hot water that conveniently control gets into in the muddy water proportional control valve 22, thereby can conveniently adjust the effect of temperature through muddy water proportional control valve 22, provide data support for the regulation of muddy water outlet pipe 25 temperature.
Through the setting of control module to can control mixing water proportion control valve 22, instant electric heater 21 and electric heating element 14 at control module at the procedure of predetermineeing, thereby play the effect of conveniently adjusting the temperature, enable the temperature more stable.
Through the setting of outlet water temperature sensor 35, can conveniently monitor the temperature in mixing water outlet pipe 25, play the effect of facilitating the use.
The control module is used for acquiring a water temperature signal, and comparing the water temperature in the water mixing and water discharging pipe 25 reversely pushed out with the water temperature monitored by the water temperature sensor 35, so that the control precision of the temperature in the water mixing and water discharging pipe 25 is further improved, and the stability of the water temperature in the water mixing and water discharging pipe 25 is favorably improved.
Through the setting of hot water temperature sensor 36, can conveniently monitor the temperature of the temperature in hot outlet pipe 13, play the effect of facilitating the use.
The control module is used for collecting hot water temperature signals, and can conveniently monitor the water temperature of each position of the water heater, so that the working state of the water heater can be conveniently monitored, and the effect of improving safety can be achieved.
The driving member 26 is electrically connected to the control module, and the control module controls the water mixing valve 27 through the driving member 26, so as to realize the function of adjusting the ratio of hot water and cold water entering the water mixing and water outlet pipe 25 through the control module.
Through the setting of shell 15, play the effect of protection inner bag 11 and pipeline, improve life to can play the effect that improves the aesthetic property.
The outer case 15 protects the instant electric heater 21, thereby improving the life span and the appearance.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (10)
1. The utility model provides a hot and cold water mixing's bimodulus electric water heater, includes inner bag (11), cold inlet tube (12) and hot outlet pipe (13) communicate with inner bag (11) respectively, inner bag (11) are equipped with electric heating element (14), its characterized in that: still include instant heating electric heater (21) and mix water proportion control valve (22), instant heating electric heater (21) and hot outlet pipe (13) intercommunication, mix water proportion control valve (22) and be equipped with cold water inlet (23), hot water inlet (24) and mix water outlet pipe (25), cold water inlet (23) and cold inlet tube (12) intercommunication, hot water inlet (24) and instant heating electric heater (21) intercommunication.
2. The hot and cold water mixing dual mode electric water heater according to claim 1, wherein: the cold water inlet (23) is provided with a cold water mixing temperature sensor (31) and a cold water mixing flow sensor (32), and the hot water inlet (24) is provided with a hot water mixing temperature sensor (33) and a hot water mixing flow sensor (34).
3. The hot and cold water mixing dual mode electric water heater according to claim 2, wherein: still include control module, control module respectively with cold water mixing temperature sensor (31), cold water mixing flow sensor (32), hot water mixing temperature sensor (33), hot water mixing flow sensor (34), muddy water proportion control valve (22), electric heater (21) and electric heating element (14) electric connection promptly.
4. The hot and cold water mixing dual mode electric water heater according to claim 3, wherein: the mixed water outlet pipe (25) is provided with an outlet water temperature sensor (35).
5. The hot and cold water mixing dual mode electric water heater according to claim 4, wherein: and the water outlet temperature sensor (35) is electrically connected with the control module.
6. A hot and cold water mixing dual mode electric water heater as claimed in claim 3, wherein: the hot water outlet pipe (13) is provided with a hot water temperature sensor (36).
7. The hot and cold water mixing dual mode electric water heater according to claim 6, wherein: the hot water temperature sensor (36) is electrically connected with the control module.
8. The hot and cold water mixing dual mode electric water heater according to claim 1, wherein: the water mixing proportion adjusting valve (22) comprises a water mixing valve (27) and a driving part (26), the driving part (26) is installed on the water mixing valve (27), and an output shaft of the driving part (26) is connected with a valve core of the water mixing valve (27).
9. The hot and cold water mixing dual mode electric water heater according to claim 1, wherein: the water-cooling water mixing device is characterized by further comprising a shell (15), the inner container (11) is fixedly installed in the shell (15), and the cold water inlet pipe (12) and the water mixing water outlet pipe (25) extend out of the shell (15).
10. The hot and cold water mixing dual mode electric water heater according to claim 1, wherein: the electric heating water heater further comprises a shell (15), and the instant electric heater (21) is arranged in the shell (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884555.XU CN218722261U (en) | 2022-10-31 | 2022-10-31 | Dual-mode electric water heater with cold water and hot water mixed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884555.XU CN218722261U (en) | 2022-10-31 | 2022-10-31 | Dual-mode electric water heater with cold water and hot water mixed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218722261U true CN218722261U (en) | 2023-03-24 |
Family
ID=85596981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222884555.XU Active CN218722261U (en) | 2022-10-31 | 2022-10-31 | Dual-mode electric water heater with cold water and hot water mixed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218722261U (en) |
-
2022
- 2022-10-31 CN CN202222884555.XU patent/CN218722261U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202470455U (en) | Constant temperature device of water terminal and multiple-point water supply constant temperature heat water system with same | |
| CN109027378B (en) | Touch type constant temperature faucet system | |
| CN201787733U (en) | Gas water heater control system with controllable water use mode | |
| CN101205983B (en) | Triplet electro-heat execution valve and terra warm water mixing device | |
| CN101825189A (en) | Electronic thermostatic water tap device | |
| US4785845A (en) | Faucet mixing battery | |
| CN218722261U (en) | Dual-mode electric water heater with cold water and hot water mixed | |
| CN211903321U (en) | Low-voltage automatic compensation power electric water heater | |
| CN205841920U (en) | A kind of touch constant-temperature water faucet system | |
| CN212842183U (en) | Intelligent dual-mode constant-temperature electric water heater | |
| CN212644979U (en) | Intelligent constant-temperature hot water system | |
| CN201844588U (en) | Electric thermostat of solar water heater | |
| CN201621360U (en) | Central heating flow automatic control driving device | |
| CN211933811U (en) | Shower screen with circulating backwater constant temperature function | |
| CN208090061U (en) | Electric heater constant temperature water transfer mechanism | |
| CN215930106U (en) | Intelligent constant-temperature pre-heating and instant heating dual-mode electric water heater | |
| CN213017865U (en) | Hot water control constant-temperature water outlet structure and water heater | |
| CN216667997U (en) | Hot water electric control circulating device applied to water heater | |
| CN219866531U (en) | Intelligent constant temperature control system | |
| CN218454999U (en) | Constant temperature water tap | |
| CN217815123U (en) | Electric thermostatic valve | |
| CN213900080U (en) | Thermostatic valve with temperature display function | |
| CN217365410U (en) | Control system of under-kitchen water purifying dispenser and under-kitchen water purifying dispenser | |
| CN211290570U (en) | Zero cold water circulation device and system | |
| CN209431644U (en) | A kind of intelligent thermostatic electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |