CN115164403A - Water heater and control method thereof - Google Patents
Water heater and control method thereof Download PDFInfo
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- CN115164403A CN115164403A CN202210622985.6A CN202210622985A CN115164403A CN 115164403 A CN115164403 A CN 115164403A CN 202210622985 A CN202210622985 A CN 202210622985A CN 115164403 A CN115164403 A CN 115164403A
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Images
Classifications
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- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/128—Preventing overheating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/184—Preventing harm to users from exposure to heated water, e.g. scalding
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/273—Address or location
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric 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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/443—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using a central controller connected to several sub-controllers
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
- F24H15/457—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using telephone networks or Internet communication
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- 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage 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
- F24H9/25—Arrangement or mounting of control or safety devices of remote control devices or control-panels
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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)
- Computer Hardware Design (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The embodiment of the application provides a water heater and a control method thereof, particularly relates to the technical field of water heaters, can adapt to areas with different atmospheric pressures, and solves the problem that when the water heater is installed in an area with smaller atmospheric pressure, the water heater is frequently disconnected to influence the use of a user. This water heater includes: a housing; an inner container; a heating device; a thermal circuit breaker disposed between the power source and the heating device; a controller configured to: acquiring the atmospheric pressure of the position of the water heater; determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater; determining a temperature regulation upper limit value supported by the thermal circuit breaker according to the actual action temperature of the thermal circuit breaker, wherein the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the actual action temperature of the thermal circuit breaker; and taking the minimum value of the temperature regulation upper limit value supported by the thermal circuit breaker and the default temperature regulation upper limit value of the water heater as the temperature regulation upper limit value actually used by the water heater.
Description
Technical Field
The application relates to the technical field of water heaters, in particular to a water heater and a control method thereof.
Background
With the development of science and technology, the living standard of people is also continuously improved, and the water heater also gradually becomes the necessary household electrical appliance for every family.
At present, most of water heaters on the market adopt a hydraulic thermal circuit breaker, and when the water temperature of the water heater reaches the action temperature of the thermal circuit breaker, the thermal circuit breaker can break off the circuit connection of the heater, so that the heater is prevented from continuing to heat, and potential safety hazards are generated.
However, when the water heater is located in different areas, the operating temperature of the thermal circuit breaker may also change, and the operating temperature of the thermal circuit breaker may not reach the user-set temperature but may reach the operating temperature of the thermal circuit breaker.
Disclosure of Invention
The application provides a water heater and a control method thereof, which can adapt to areas with different atmospheric pressures and solve the problem that when the water heater is installed in an area with smaller atmospheric pressure, the water heater is frequently disconnected to influence the use of a user.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, the present application provides a water heater comprising:
a housing;
the inner container is arranged in the shell, and a water storage chamber is arranged in the inner container;
the heating device is used for heating the stored water in the inner container;
the thermal circuit breaker is arranged between the power supply and the heating device;
a controller configured to:
acquiring the atmospheric pressure of the position of the water heater;
determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater;
determining a temperature regulation upper limit value supported by the thermal circuit breaker according to the actual action temperature of the thermal circuit breaker, wherein the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the actual action temperature of the thermal circuit breaker;
and taking the minimum value of the upper limit value of the temperature regulation supported by the thermal circuit breaker and the default upper limit value of the temperature regulation of the water heater as the upper limit value of the temperature regulation actually used by the water heater.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects: compared with the mode that the normal operation of the water heater is ensured by individually customizing the thermal circuit breaker according to the atmospheric pressure in the water heater in the related art, the embodiment of the application does not change the structure of the existing thermal circuit breaker, the atmospheric pressure at the position of the water heater is obtained, the actual action temperature of the thermal circuit breaker is determined according to the atmospheric pressure, the temperature adjusting upper limit value supported by the thermal circuit breaker is determined, and finally the minimum value of the temperature adjusting upper limit value supported by the thermal circuit breaker and the default temperature adjusting upper limit value of the water heater is used as the actual used temperature adjusting upper limit value of the water heater. In this way, the upper limit value of the temperature regulation actually used by the water heater is smaller than the actual action temperature of the thermal circuit breaker. In this case, since the maximum leaving water temperature set by the user cannot be greater than the upper limit value of the temperature adjustment for the actual use of the water heater, the problem that the user use is affected by the thermal circuit breaker being mistakenly opened because the maximum leaving water temperature set by the user is greater than the actual operating temperature of the thermal circuit breaker does not occur. Therefore, the water heater provided by the embodiment of the application can avoid the problem that the water heater is frequently disconnected when the water heater is installed in a low-pressure area under the condition that the structure of the existing water heater is not required to be changed, and the water heater provided by the embodiment of the application can be suitable for being used in areas with different atmospheric pressures.
In some embodiments, the controller of the water heater is configured to determine the actual operating temperature of the thermal circuit breaker according to the atmospheric pressure at the location of the water heater, and specifically perform the following steps: obtaining the ambient temperature; and determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure and the ambient temperature of the position of the water heater. Because the action temperature of the thermal circuit breaker can change along with the changes of the atmospheric pressure and the ambient temperature, the actual action temperature of the thermal circuit breaker can be more accurately determined by acquiring the atmospheric pressure and the ambient temperature of the position of the water heater.
In some embodiments, the controller of the water heater is further configured to: when the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the minimum value of the default temperature regulation upper limit values of the water heater, first prompt information is sent out and used for prompting a user that the water heater modifies the temperature regulation upper limit value. Like this, the controller sends first prompt message, can inform the user that temperature regulation upper limit has been revised, avoids the user to repair the water heater under the condition of not knowing, promotes user's use experience.
In some embodiments, the controller of the water heater is further configured to: acquiring the highest water outlet temperature set by a user; and when the maximum water outlet temperature is higher than the upper limit value of the temperature regulation actually used by the water heater, sending out second prompt information, wherein the second prompt information is used for prompting that the water heater does not support the maximum water outlet temperature. Therefore, the controller can prompt the user that the maximum outlet water temperature set by the controller is higher than the upper limit value of the temperature regulation of the actual use of the water heater by sending out second prompt information, instruct the user to reset the maximum outlet water temperature, and avoid the abnormal work of the water heater caused by the overhigh outlet water temperature set by the user.
In some embodiments, the controller of the water heater is configured to obtain the atmospheric pressure of the location where the water heater is located, and specifically perform the following steps: acquiring position information of the water heater; and determining the atmospheric pressure of the position of the water heater according to the position information of the water heater. Therefore, because the atmospheric pressure is closely related to the geographical position, the atmospheric pressure at the position of the water heater can be determined more quickly and accurately by acquiring the position information of the water heater.
In some embodiments, the controller of the water heater is configured to determine the upper limit value of the temperature regulation supported by the thermal circuit breaker according to the actual operating temperature of the thermal circuit breaker, and specifically execute the following steps: and subtracting the preset temperature value from the actual action temperature of the thermal breaker to obtain the temperature regulation upper limit value supported by the thermal breaker. Therefore, a margin is reserved between the actual action temperature of the thermal circuit breaker and the upper limit value of the temperature regulation supported by the thermal circuit breaker, the abnormal operation of the water heater caused by the false action of the thermal circuit breaker can be prevented, and the damage to internal electrical components of the water heater due to overhigh water temperature can be avoided.
In a second aspect, the present application provides a method of controlling a water heater, the method comprising: acquiring the atmospheric pressure of the position of the water heater; determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater; determining a temperature regulation upper limit value supported by the thermal circuit breaker according to the actual action temperature of the thermal circuit breaker, wherein the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the actual action temperature of the thermal circuit breaker; and taking the minimum value of the upper limit value of the temperature regulation supported by the thermal circuit breaker and the default upper limit value of the temperature regulation of the water heater as the upper limit value of the temperature regulation actually used by the water heater.
In some embodiments, determining the actual operating temperature of the thermal circuit breaker according to the atmospheric pressure at the location of the water heater specifically includes: acquiring an ambient temperature; and determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure and the ambient temperature of the position of the water heater.
In some embodiments, the control method of the water heater further comprises: and when the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the minimum value in the default temperature regulation upper limit values of the water heater, sending first prompt information, wherein the first prompt information is used for prompting a user to modify the temperature regulation upper limit value of the water heater.
In some embodiments, the control method of the water heater further comprises: acquiring the highest outlet water temperature set by a user; and when the maximum water outlet temperature is higher than the upper limit value of the temperature regulation actually used by the water heater, sending out second prompt information, wherein the second prompt information is used for prompting that the water heater does not support the maximum water outlet temperature.
In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are configured to store computer program code comprising computer instructions which, when executed by the one or more processors, cause the controller to perform any of the methods of controlling a water heater provided by the second aspect.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium includes computer instructions, and when the computer instructions are controlled on a computer, the computer is caused to execute the method provided in the second aspect and possible implementation manners.
In a fifth aspect, embodiments of the present invention provide a computer program product directly loadable into a memory and containing software code, which when loaded and executed by a computer is able to carry out the method as provided in the second aspect and possible implementations.
It should be noted that the computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged with or separately from a processor of the controller, which is not limited in this application.
For the beneficial effects described in the second aspect to the fifth aspect in the present application, reference may be made to the beneficial effect analysis of the first aspect, which is not described herein again.
Drawings
Fig. 1 is a schematic mechanical structure diagram of a water heater provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a circuit system of a water heater according to an embodiment of the present disclosure;
FIG. 3 is a schematic view illustrating an operation principle of a water heater according to an embodiment of the present disclosure;
FIG. 4 is a flow chart of a control method of a water heater according to an embodiment of the present disclosure;
fig. 5 is a first schematic diagram of a display interface of a terminal device according to an embodiment of the present application;
FIG. 6 is a flow chart of a control method for a water heater according to an embodiment of the present disclosure;
fig. 7 is a second schematic view of a display interface of a terminal device according to an embodiment of the present application;
fig. 8 is a third schematic view of a display interface of a terminal device according to an embodiment of the present application;
FIG. 9 is a schematic view of a work flow of a water heater provided in an embodiment of the present application;
fig. 10 is a schematic hardware structure diagram of a controller according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connecting" are used in this application to mean conducting. The specific meaning is to be understood in conjunction with the context.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the working process of the water heater, when the water temperature in the water heater reaches the action temperature of the thermal circuit breaker, the thermal circuit breaker can break the circuit connection of the heating device, so that the heating device is prevented from being continuously heated, and potential safety hazards are prevented. Generally, the operating temperature of the thermal circuit breaker is a temperature value for triggering the thermal circuit breaker to operate when the ambient temperature is 25 ℃ and the atmospheric pressure is 101.32Kpa, and is approximately between 88 ℃ and 105 ℃.
At present, the default upper limit value of the temperature regulation of a water heater is generally 75 ℃, when the atmospheric pressure at the position of the water heater is reduced, the action temperature of a thermal circuit breaker is also reduced, and the condition that the action temperature of the thermal circuit breaker is less than 75 ℃ may occur. If the outlet water temperature of the water heater set by the user is higher than the action temperature of the thermal circuit breaker, when the water temperature in the water heater heated by the heating device reaches the action temperature of the thermal circuit breaker, the thermal circuit breaker will disconnect the connection between the heating device and the power supply, so that the water heater works abnormally, and the use experience of the user is influenced.
In view of this, an embodiment of the present application provides a water heater, where a controller of the water heater may determine an actual operating temperature of a thermal circuit breaker of the water heater according to an atmospheric pressure at a location of the water heater by acquiring the atmospheric pressure at the location of the water heater, and re-determine an upper limit value of a temperature adjustment actually used by the water heater according to the actual operating temperature of the thermal circuit breaker. Therefore, the problem that the use of a user is influenced due to the fact that the wrong circuit breaking of the thermal circuit breaker is caused because the maximum outlet water temperature set by the user is larger than the actual action temperature of the thermal circuit breaker is solved, better use experience can be brought to the user, and the use area of the water heater can be enlarged.
Fig. 1 is a schematic mechanical structure diagram of a water heater provided in an embodiment of the present application.
As shown in fig. 1, the water heater 10 may include: a housing 101, an inner container 102, a water storage chamber 103, a heating device 104, a thermal cut-off 105, and a controller 106.
In some embodiments, the housing 101 is used to protect electrical components inside the water heater, and to close the passage of contacts inside and outside the water heater, thereby preventing damage to the electrical components.
In some embodiments, a liner 102 is disposed within the housing 101 for isolating the housing 101 from water to be heated. The inner container 102 may have the functions of heat preservation, pressure resistance, seepage prevention, rust prevention and the like.
In some embodiments, a water storage chamber 103 is provided within the liner 102 for storing water to be heated.
In some embodiments, the heating device 104 is used to heat the stored water in the inner container 102.
In some embodiments, the heating device 104 refers to a heating assembly having a heating tube or element. For example, the heating tube may be a seamless metal tube (carbon steel tube, titanium tube, stainless steel tube, copper tube) in which an electric heating wire is installed, and a gap portion is filled with magnesium oxide powder having good thermal conductivity and insulation properties and then contracted, and may be further processed into various shapes. The heating device has the advantages of small volume, high heating temperature and good adaptability to severe environment.
In some embodiments, the thermal breaker 105 is disposed between the power supply and the heating device 104, and is configured to disconnect the heating device 104 from the power supply when the temperature of the water in the water storage chamber 103 reaches an operating temperature of the thermal breaker 105, so as to prevent the heating device 104 from continuing to heat and causing a safety hazard.
In the embodiment of the present application, the thermal breaker 105 may be a liquid-filled thermal breaker.
In some embodiments, the controller 106 refers to a device that can generate an operation control signal according to the command operation code and the timing signal, and instruct the water heater 10 to execute the control command. Illustratively, the controller 106 may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a Programmable Logic Device (PLD), a microprocessor, a microcontroller, or any combination thereof. The controller may also be other devices with processing functions, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.
For example, after the outlet water temperature of the water heater 10 set by the user is obtained, the controller 106 may control the heating device 104 to operate to heat the stored water in the water storage chamber 103 to the outlet water temperature set by the user, so as to meet the user requirement.
Fig. 2 schematically illustrates a circuit architecture diagram of the water heater 10.
As shown in fig. 2, the water heater 10 further includes: temperature sensor 107, display 108, voice prompt device 109, man-machine interaction device 110, communication device 111, user interface 112 and power supply 113. The heating device 104, the thermal circuit breaker 105, the temperature sensor 107, the display 108, the voice prompt device 109, the human-computer interaction device 110, the communication device 111, the user interface 112 and the power supply 113 are all connected to the controller 106.
In some embodiments, temperature sensor 107 refers to a sensor that can detect temperature and can convert the detected temperature value into a usable output signal. Illustratively, the temperature sensor 107 may be used to detect the temperature of the water within the water storage chamber 103 of the water heater 10 and send the detected temperature value to the controller 106. The controller 106 controls other electrical components to operate accordingly according to the water temperature detected by the temperature sensor 107.
In some embodiments, the display 108 may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display is not limiting, and those skilled in the art will appreciate that the display may be modified in performance and configuration as desired.
In some embodiments, the display 108 may be used to display a control panel of the water heater 10 or operational information of the water heater 10. For example, the water heater 10 may display the current operation information of the water heater 10, such as the water temperature set by the user, the current water temperature, the heating time of the water heater, etc., via the display 108.
In some embodiments, the voice prompt apparatus 109 is configured to play the voice prompt message according to a program. The content of the voice prompt message may be preset by the manufacturer of the water heater 10, or may be set by the user through the human-computer interaction device. For example, when the controller 106 obtains, through the temperature sensor 107, that the current water temperature in the water heater 10 has reached the temperature set by the user, the controller 106 may control the voice prompt device 109 to play a prompt message such as "the set temperature has been reached".
In some embodiments, a human-computer interaction device 110 is used to enable interaction between a user and the water heater 10. The human interaction device 110 may include one or more of physical keys or a touch display panel. For example, the user can set the upper heating temperature limit of the water heater 10 through the human-computer interaction device 110.
In some embodiments, the communication device 111 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communication device 111 may include at least one of a wireless communication technology (Wi-Fi) module, a bluetooth module, a wired ethernet module, a Near Field Communication (NFC) module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The communication device 111 may be used for communicating with other devices or communication networks (e.g., ethernet, radio Access Network (RAN), wireless Local Area Networks (WLAN), etc.).
In some embodiments, the controller 106 may be operable to communicate with a terminal device via the communication means 111. For example, the controller 106 receives the maximum outlet water temperature of the water heater 10 set by the user on another device through the communication device 111, and then controls the heating device 104 to heat the stored water in the inner container 102. For another example, when the maximum outlet water temperature of the water heater 10 set by the user is greater than the practical upper limit value of the temperature adjustment of the water heater, the controller 106 may send a second prompt message to the terminal device used by the user through the communication device 111 to prompt the user that the water heater 10 does not support the maximum outlet water temperature set by the user, and prompt the user to reset the maximum outlet water temperature of the water heater 10.
In some embodiments, the user interface 112 is used to receive user input signals and then transmit the received user input signals to the controller 106. The user may input user commands via the display 108 or terminal device, and after the user interface receives the user inputs, the water heater 10 responds to the user inputs via the controller 106.
In some embodiments, the power supply 113, under the control of the controller 106, provides mains power support to the water heater 10 from power input from an external power source.
Based on the above water heater, fig. 3 schematically shows the operation of the water heater 10.
As shown in fig. 3, the power supply 113 supplies power to the heating device 104 of the water heater 10 through the control circuit, and the heating device 104 heats the stored water in the inner container 102. When the water temperature detected by the temperature sensor 107 is higher than the set temperature, the controller 107 cuts off the power supply of the power supply 113 and enters a heat preservation mode; when the temperature sensor 107 detects that the water temperature is reduced and is lower than the set temperature, the controller 107 switches on the power supply 113 again to supply power, so that automatic temperature control can be realized, and the user can be guaranteed to have available hot water all the time. When a fault occurs in the water temperature control process and the heating temperature is higher than the set water temperature and reaches the action temperature of the thermal circuit breaker 105, the thermal circuit breaker 105 disconnects the power supply 113 from the heating device 104, so that the heating device 104 can be prevented from continuously working to damage electrical components inside the water heater 10, and the user can be prevented from being scalded by the overhigh water outlet temperature of the water heater 10.
The following detailed description of the embodiments of the present application is made with reference to the accompanying drawings.
The embodiment of the application provides a control method of a water heater, as shown in fig. 4, the method includes the following steps:
s101, the controller obtains the atmospheric pressure of the position where the water heater is located.
In some embodiments, the controller may first obtain the location information of the water heater, and then determine the atmospheric pressure at the location of the water heater according to the location information of the water heater. It should be understood that when the geographical position changes, the atmospheric pressure of the place also changes, so that the position information of the water heater can be obtained first, and then the atmospheric pressure of the position of the water heater can be determined according to the position of the water heater.
Optionally, the controller obtains the position information of the water heater, and may be implemented in any one of the following manners:
mode 1, the water heater determines the position information of the water heater by installing a positioning device.
Mode 2, the water heater receives input operation of the position information of the water heater by a user; in response to the operation, the water heater determines location information.
And in the mode 3, the water heater is connected with other equipment, and the position information sent by the other equipment is received to determine the position information of the water heater.
Optionally, the controller determines the atmospheric pressure at the position of the water heater according to the position information of the water heater, and may be specifically implemented in any one of the following manners:
mode 1, the water heater determines the atmospheric pressure at the position of the water heater by inquiring prestored atmospheric pressure information of each region
And in the mode 2, the water heater is connected with the cloud, and the atmospheric pressure of the position of the water heater is determined by inquiring the atmospheric pressure of each area at the cloud.
And in the mode 3, the water heater is connected with other equipment, and the atmospheric pressure information of each area sent by the other equipment is received, so that the atmospheric pressure of the position where the water heater is located is determined.
S102, the controller determines the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position where the water heater is located.
It should be understood that the operating temperature of the thermal cut-off varies with the atmospheric pressure, and when the atmospheric pressure changes, the operating temperature of the thermal cut-off should be corrected.
As a possible implementation, the controller directly determines the actual operating temperature of the thermal circuit breaker according to the atmospheric pressure at the location of the water heater.
As another possible implementation, the controller determines the actual operating temperature of the thermal circuit breaker according to the atmospheric pressure at the location of the water heater and the ambient temperature.
Optionally, the controller obtains the ambient temperature, and may be implemented in any one of the following manners:
mode 1, the water heater determines the ambient temperature by installing an ambient temperature detector.
Mode 2, the water heater receives input operation of a user on the ambient temperature; in response to the operation, the water heater determines an ambient temperature.
Optionally, the controller determines the actual operating temperature of the thermal circuit breaker, which may be specifically implemented as: and correcting the action temperature of the thermal circuit breaker at the standard atmospheric pressure and 25 ℃ according to the atmospheric pressure and the ambient temperature of the position of the water heater.
Illustratively, the thermal circuit breaker has an operating temperature K of 101.32Kpa at atmospheric pressure and 25 ℃ at ambient temperature 0 The corrected value is C, and the operation temperature of the thermal breaker after correction is K = K 0 And (x) C. Wherein the correction value C is a function of the atmospheric pressure P and the ambient temperature T, C =
f (P, T). The atmospheric pressure P has a more obvious influence on the correction value C, and the smaller the atmospheric pressure P is, the smaller the correction value C is.
S103, the controller determines the temperature regulation upper limit value supported by the thermal breaker according to the actual action temperature of the thermal breaker.
The upper limit value of the temperature regulation supported by the thermal circuit breaker is smaller than the actual action temperature of the thermal circuit breaker. Therefore, a proper safety margin is left between the water heater and the water heater, so that the water heater can be prevented from working abnormally due to misoperation of the thermal circuit breaker, and electric elements in the water heater can be prevented from being damaged due to overhigh water temperature.
Optionally, according to the actual operating temperature of the thermal circuit breaker, the controller determines the temperature adjustment upper limit value supported by the thermal circuit breaker, which may be specifically implemented as: and subtracting the preset temperature value from the actual action temperature of the thermal breaker to obtain the upper limit value of the temperature regulation supported by the thermal breaker. For example, if the actual operating temperature of the thermal breaker is 83 ℃ and the preset temperature value is 18 ℃, the controller may determine that the upper limit value of the temperature regulation supported by the thermal breaker is 65 ℃.
And S104, the controller takes the minimum value of the temperature regulation upper limit value supported by the thermal circuit breaker and the default temperature regulation upper limit value of the water heater as the temperature regulation upper limit value actually used by the water heater.
It should be understood that, when the upper limit value of the temperature regulation supported by the thermal circuit breaker is smaller than the default upper limit value of the temperature regulation of the water heater, if the user sets the maximum outlet water temperature of the water heater as the default upper limit value of the temperature regulation of the water heater, during the heating process, a situation may occur in which the water temperature does not reach the default upper limit value of the temperature regulation of the water heater but reaches the actuation temperature of the thermal circuit breaker. Under the condition, the thermal circuit breaker works to disconnect the connection between the heating device and the power supply, so that the water heater works abnormally, and bad use feeling can be brought to a user. Therefore, the minimum value between the upper limit of the temperature adjustment supported by the thermal circuit breaker and the upper limit of the temperature adjustment default for the water heater should be used as the upper limit of the temperature adjustment actually used for the water heater.
For example, if the thermal cut-out supports a temperature adjustment upper limit of 65 ℃ and the default temperature adjustment upper limit of the water heater is 75 ℃, the controller confirms that 65 ℃ is the temperature adjustment upper limit actually used by the water heater. Therefore, the misoperation of the thermal circuit breaker caused by overhigh water temperature can be avoided, and the normal work of the water heater can be ensured.
For another example, if the upper limit of the temperature adjustment supported by the thermal cut-off is 85 ℃ and the default upper limit of the temperature adjustment of the water heater is 75 ℃, the controller confirms that 75 ℃ is the upper limit of the temperature adjustment actually used by the water heater. Therefore, the misoperation of the thermal circuit breaker caused by overhigh water temperature can be avoided, the highest water temperature can be guaranteed, a user can not be scalded, and more comfortable use feeling can be brought to the user.
The technical scheme shown in fig. 4 brings at least the following beneficial effects: compared with the mode that the normal operation of the water heater is ensured by individually customizing the thermal circuit breaker according to the atmospheric pressure in the water heater in the related art, the embodiment of the application does not change the structure of the existing thermal circuit breaker, the atmospheric pressure at the position of the water heater is obtained, the actual action temperature of the thermal circuit breaker is determined according to the atmospheric pressure, the temperature adjusting upper limit value supported by the thermal circuit breaker is determined, and finally the minimum value of the temperature adjusting upper limit value supported by the thermal circuit breaker and the default temperature adjusting upper limit value of the water heater is used as the actual used temperature adjusting upper limit value of the water heater. In this way, the upper limit value of the temperature regulation actually used by the water heater is smaller than the actual action temperature of the thermal circuit breaker. In this case, since the maximum leaving water temperature set by the user cannot be greater than the upper limit value of the temperature adjustment for the actual use of the water heater, the problem that the user use is affected by the thermal circuit breaker being mistakenly opened because the maximum leaving water temperature set by the user is greater than the actual operating temperature of the thermal circuit breaker does not occur. Therefore, the water heater provided by the embodiment of the application can avoid the problem that the water heater is frequently disconnected when the water heater is installed in a low-pressure area under the condition that the structure of the existing water heater is not required to be changed, and therefore the water heater provided by the embodiment of the application can be suitable for being used in areas with different atmospheric pressures.
In some embodiments, the controller issues the first prompt message when the upper limit value of the temperature regulation supported by the thermal circuit breaker is smaller than the minimum value of the upper limit values of the temperature regulation of the default water heater. The first prompt message is used for prompting a user that the water heater needs to modify the upper limit value of the temperature regulation.
Optionally, the controller of the water heater sends out the first prompt message, which may be fed back to the user through the display, or may prompt the user through the voice prompt device, or may send the first prompt message to the terminal device used by the user through the communication device.
For example, after the controller of the water heater sends out the first prompt message through the communication device, as shown in fig. 5, the terminal device used by the user pops up the first prompt message, "the water heater modifies the upper limit value of temperature adjustment," which prompts the user that the upper limit value of temperature adjustment supported by the thermal circuit breaker in the current environment is smaller than the minimum value of the default upper limit values of temperature adjustment of the water heater, and the water heater needs to modify the upper limit value of temperature adjustment to ensure that the water heater can work normally.
Therefore, the controller sends out the first prompt message to inform the user that the upper limit value of the temperature regulation is modified, the water heater is prevented from being repaired by the user under the condition of no knowledge, and the use experience of the user is improved.
In some embodiments, as shown in fig. 6, the control method of the water heater further includes the steps of:
s201, the controller obtains the highest water outlet temperature set by a user.
Optionally, the controller obtains the maximum outlet water temperature set by the user, and may be specifically implemented in any one of the following manners:
the method comprises the following steps that 1, a water heater receives the setting operation of a user on the highest water outlet temperature through a man-machine interaction device; in response to this operation, the water heater determines a maximum outlet water temperature set by the user.
Mode 2, the water heater is connected with other equipment, and receives the maximum outlet water temperature set by the user on the other equipment, so as to determine the maximum outlet water temperature set by the user. For example, as shown in fig. 7, the terminal device used by the user is a mobile phone, and the user opens an APP for operating a water heater, such as a smart home APP, on the mobile phone. And then, the user operates on intelligent house APP, sets up the highest leaving water temperature of water heater, through the communication between terminal equipment and the water heater, sends the highest leaving water temperature that the user set up for the water heater.
S202, when the highest outlet water temperature is larger than the upper limit value of the temperature regulation actually used by the water heater, the controller sends out second prompt information.
And the second prompt message is used for prompting that the water heater does not support the highest outlet water temperature.
Optionally, the controller of the water heater may feed back the second prompt information to the user through the display, may also play the second prompt information through the voice prompt device to prompt the user, and may also send the second prompt information to the terminal device used by the user through the communication device.
For example, as shown in fig. 8, the terminal device used by the user is a mobile phone, and a second prompt message "does not support the set temperature, please reset" is popped up on the page of the mobile phone, so as to prompt the user that the water heater does not support the maximum outlet water temperature set by the user, so as to instruct the user to reset the maximum outlet water temperature.
The technical scheme shown in fig. 6 brings at least the following beneficial effects: the controller can prompt a user that the maximum outlet water temperature set by the controller is higher than the temperature regulation upper limit value actually used by the water heater by sending out second prompt information, so that the user is instructed to reset the maximum outlet water temperature, and the abnormal working of the water heater caused by the overhigh outlet water temperature set by the user is avoided.
The control flow of the water heater during heating is described by taking the default upper temperature regulation limit value of the water heater as 75 ℃ as an example.
As shown in fig. 9, the water heater starts to operate:
(1) Determining the position information of the water heater;
(2) Determining the atmospheric pressure of the position of the water heater;
(3) Determining an actual operating temperature of the thermal circuit breaker;
(4) Determining the upper limit value K of the temperature regulation supported by the thermal circuit breaker according to the actual operating temperature of the thermal circuit breaker 1 ；
(5) Judgment of K 1 Whether less than 75 ℃; if K is 1 If the temperature is less than 75 ℃, the practical temperature regulation upper limit value of the water heater is determined to be K 1 And sending out a second prompt message; if K is 1 And if the temperature is not less than 75 ℃, the temperature of 75 ℃ is still used as the upper limit value of the temperature regulation actually used by the water heater.
(6) And adjusting the upper limit value to start operation according to the actual temperature of the water heater.
It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the functions described above, the embodiments of the present application provide corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiment of the present application, the controller may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
As shown in fig. 10, the controller 300 includes a processor 301, and optionally, further includes a memory 302 and a communication interface 303, which are connected to the processor 301. The processor 301, memory 302 and communication interface 303 are connected by a bus 304.
The processor 301 may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 301 may also be any other device having processing functionality, such as a circuit, a device, or a software module. The processor 301 may also include a plurality of CPUs, and the processor 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data, such as computer program instructions.
The memory 302 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, which is not limited by the embodiments herein. The memory 302 may be separate or integrated with the processor 301. The memory 302 may have computer program code embodied therein. The processor 301 is configured to execute the computer program code stored in the memory 302, so as to implement the control method provided by the embodiment of the present application.
The bus 304 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 304 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.
The embodiment of the application also provides a computer-readable storage medium, which comprises computer-executable instructions, and when the computer-readable storage medium runs on a computer, the computer is enabled to execute the control method of the water heater provided by the embodiment.
The embodiment of the application also provides a computer program product containing computer execution instructions, which when run on a computer, causes the computer to execute any one of the control methods of the water heater provided by the above embodiments.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A water heater, comprising:
a housing;
the inner container is arranged in the shell, and a water storage cavity is arranged in the inner container;
the heating device is used for heating the stored water in the inner container;
a thermal circuit breaker disposed between a power source and the heating device;
a controller configured to:
acquiring the atmospheric pressure of the position of the water heater;
determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater;
determining an upper limit value of temperature regulation supported by the thermal circuit breaker according to the actual operating temperature of the thermal circuit breaker, wherein the upper limit value of temperature regulation supported by the thermal circuit breaker is smaller than the actual operating temperature of the thermal circuit breaker;
and taking the minimum value of the temperature regulation upper limit value supported by the thermal circuit breaker and the default temperature regulation upper limit value of the water heater as the temperature regulation upper limit value actually used by the water heater.
2. The water heater according to claim 1, wherein the controller is configured to determine an actual operating temperature of the thermal circuit breaker based on an atmospheric pressure at a location of the water heater, and to perform the following steps:
acquiring an ambient temperature;
and determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater and the environment temperature.
3. The water heater of claim 1, wherein the controller is further configured to:
and when the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the minimum value in the default temperature regulation upper limit values of the water heater, sending first prompt information, wherein the first prompt information is used for prompting a user to modify the temperature regulation upper limit value of the water heater.
4. The water heater of claim 1, wherein the controller is further configured to:
acquiring the highest outlet water temperature set by a user;
and when the highest outlet water temperature is higher than the upper limit value of the temperature regulation actually used by the water heater, sending second prompt information, wherein the second prompt information is used for prompting that the water heater does not support the highest outlet water temperature.
5. The water heater according to any one of claims 1 to 4, wherein the controller is configured to obtain an atmospheric pressure at a location of the water heater, and to perform the following steps:
acquiring the position information of the water heater;
and determining the atmospheric pressure of the position of the water heater according to the position information of the water heater.
6. The water heater according to any one of claims 1 to 4, wherein the controller is configured to determine an upper temperature regulation limit value supported by the thermal circuit breaker according to an actual operating temperature of the thermal circuit breaker, and specifically perform the following steps:
and subtracting a preset temperature value from the actual action temperature of the thermal circuit breaker to obtain the upper limit value of the temperature regulation supported by the thermal circuit breaker.
7. A method of controlling a water heater, comprising:
acquiring the atmospheric pressure of the position of the water heater;
determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater;
determining a temperature regulation upper limit value supported by the thermal circuit breaker according to the actual action temperature of the thermal circuit breaker, wherein the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the actual action temperature of the thermal circuit breaker;
and taking the minimum value of the upper limit value of the temperature regulation supported by the thermal circuit breaker and the default upper limit value of the temperature regulation of the water heater as the upper limit value of the temperature regulation actually used by the water heater.
8. The method according to claim 7, wherein the determining the actual operating temperature of the thermal circuit breaker according to the atmospheric pressure at the location of the water heater specifically comprises:
acquiring an ambient temperature;
and determining the actual action temperature of the thermal circuit breaker according to the atmospheric pressure of the position of the water heater and the environment temperature.
9. The method of claim 7, further comprising:
and when the temperature regulation upper limit value supported by the thermal circuit breaker is smaller than the minimum value in the default temperature regulation upper limit values of the water heater, sending first prompt information, wherein the first prompt information is used for prompting a user to modify the temperature regulation upper limit value of the water heater.
10. The method of claim 7, further comprising:
acquiring the highest outlet water temperature set by a user;
and when the highest outlet water temperature is higher than the upper limit value of the temperature regulation actually used by the water heater, sending second prompt information, wherein the second prompt information is used for prompting that the water heater does not support the highest outlet water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210622985.6A CN115164403A (en) | 2022-06-01 | 2022-06-01 | Water heater and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210622985.6A CN115164403A (en) | 2022-06-01 | 2022-06-01 | Water heater and control method thereof |
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| CN115164403A true CN115164403A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210622985.6A Pending CN115164403A (en) | 2022-06-01 | 2022-06-01 | Water heater and control method thereof |
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| JPS6259335A (en) * | 1985-09-06 | 1987-03-16 | Nippon Denso Co Ltd | Water heater |
| CN201582997U (en) * | 2009-11-30 | 2010-09-15 | 黄汉材 | Liquid heating device |
| CN104783657A (en) * | 2015-04-29 | 2015-07-22 | 韦道义 | Electric heating kettle with solar alarm unit |
| CN104949323A (en) * | 2015-06-25 | 2015-09-30 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
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2022
- 2022-06-01 CN CN202210622985.6A patent/CN115164403A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR955236A (en) * | 1950-01-11 | |||
| JPS6259335A (en) * | 1985-09-06 | 1987-03-16 | Nippon Denso Co Ltd | Water heater |
| CN201582997U (en) * | 2009-11-30 | 2010-09-15 | 黄汉材 | Liquid heating device |
| CN104783657A (en) * | 2015-04-29 | 2015-07-22 | 韦道义 | Electric heating kettle with solar alarm unit |
| CN104949323A (en) * | 2015-06-25 | 2015-09-30 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
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