Water heater control method, device, water heater and computer-readable storage medium

Abstract

An embodiment of the present application provides a water heater control method, device, water heater, and computer-readable storage medium. The method includes: when the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close; controlling the heating component in the water heater to perform preheating; when it is detected that the temperature of the heating component reaches the threshold temperature, controlling the water inlet valve to open so that the cold water in the water inlet pipe is input into the heating component for heating. Since the water inlet valve on the water inlet pipe is closed before the heating component is preheated to the threshold temperature and the water inlet valve is opened after the heating component reaches the threshold temperature in the embodiment of the present application, it can be ensured that the cold water initially flowing into the heating component in the water inlet pipe can also be fully heated into hot water.

Description

Technical Field

[0001] This application relates to the technical field of heating equipment, and particularly to a water heater control method, device, water heater, and computer-readable storage medium. Background Art

[0002] When an existing water heater is in use, water will flow out of the water outlet pipe instantly when the water outlet valve is opened. However, since the heating equipment in the water heater has not fully reached the heat exchange temperature at this time, the cold water transported to the heating equipment via the water inlet pipe flows into the water outlet pipe without being heated. As a result, when the water heater is initially used, cold water flows out of the water outlet pipe for a long period at the beginning. And it will also cause cold water to suddenly flow out after the remaining hot water in the water outlet pipe has run out when the water heater is turned on again. Both of these situations will seriously affect the user experience. Summary of the Invention

[0003] Embodiments of this application provide a water heater control method, device, water heater, and computer-readable storage medium to solve the problems in the related art. The technical solutions are as follows:

[0004] In a first aspect, an embodiment of this application provides a water heater control method, including:

[0005] When the water outlet valve is opened, control the water inlet valve on the water inlet pipe to close;

[0006] Control the heating component in the water heater to preheat;

[0007] When it is detected that the temperature of the heating component reaches the threshold temperature, control the water inlet valve to open so that the water inlet pipe inputs cold water into the heating component for heating.

[0008] In a second aspect, an embodiment of this application provides a water heater control device, including:

[0009] A first control module, configured to control the water inlet valve on the water inlet pipe to close when the water outlet valve is opened;

[0010] A second control module, configured to control the heating component in the water heater to preheat;

[0011] A third control module, configured to control the water inlet valve to open when it is detected that the temperature of the heating component reaches the threshold temperature, so that the water inlet pipe inputs cold water into the heating component for heating.

[0012] In a third aspect, an embodiment of this application provides a water heater, including a water inlet valve, a water outlet valve, and a heating component, and further including a controller for executing the water heater control method in the first aspect.

[0013] Fourthly, an embodiment of the present application provides a terminal, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, so that the at least one processor can execute the above-mentioned water heater control method.

[0014] Fifthly, an embodiment of the present application provides a computer-readable storage medium, which stores computer instructions. When the computer instructions run on a computer, the methods in any of the above aspects and implementation manners are executed.

[0015] The advantages or beneficial effects in the above technical solutions at least include: Since the water inlet valve on the water inlet pipe is closed before the heating component is preheated to the threshold temperature, and the water inlet valve is opened after the heating component reaches the threshold temperature, it can ensure that the cold water initially flowing into the heating component in the water inlet pipe can also be fully heated into hot water.

[0016] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0018] Figure 1 It is a schematic diagram of a water heater control method according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of a water heater control method according to another embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of a water heater control method according to another embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of a water heater control method according to another embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of a water heater control method according to another embodiment of the present application;

[0023] Figure 6 It is a schematic diagram of a water heater control method according to another embodiment of the present application;

[0024] Figure 7 Schematic diagram of a water heater control method according to another embodiment of the present application;

[0025] Figure 8 Schematic diagram of a water heater control method according to another embodiment of the present application;

[0026] Figure 9 Schematic diagram of a water heater control method according to an application example of the present application;

[0027] Figure 10 Schematic diagram of a water heater control device according to an embodiment of the present application

[0028] Figure 11 It is a block diagram of a terminal for implementing the water heater control method of the embodiment of the present application. Detailed implementation manners

[0029] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0030] Figure 1 The flowchart showing the water heater control method according to an embodiment of the present application. This water heater control method can be executed by any controller in the water heater, or by any terminal or cloud server communicatively connected to the water heater. As Figure 1 shown, this water heater control method may include the following steps:

[0031] S10: When the water outlet valve of the water heater is opened, control the water inlet valve on the water inlet pipe of the water heater to close.

[0032] The water outlet valve can be understood as the valve that controls the water shower of the water heater when the user uses the water heater. The opening of the water outlet valve of the water heater can be understood as the process of the water outlet valve of the water heater being opened, or can be understood as the moment when the water outlet valve of the water heater is fully opened. Controlling the water inlet valve to close can be understood as controlling the water inlet valve to block the flow of water in the water inlet pipe. That is to say, when the water outlet valve is opened, the water flowing into the water inlet pipe is prevented from being delivered to the heating component of the water heater.

[0033] The triggering timing of this step S10 can be when the user first opens the water outlet valve of the water heater on the same day, or when the user opens the water outlet valve of the water heater again.

[0034] S20: Control the heating component in the water heater to preheat.

[0035] The heating component is used to perform heat exchange on the cold water input into the water inlet pipe, so as to heat the cold water input into the water inlet pipe, and enable hot water to flow out through the outlet of the heating component. Controlling the heating component to preheat can be understood as controlling the heating component to start and raising its heat exchange temperature to a preset temperature value. The preset temperature value can be the heat exchange temperature when the heating component operates stably, or a heat exchange temperature lower than that when the heating component operates stably.

[0036] S30: When it is detected that the temperature of the heating component reaches the threshold temperature, control the water inlet valve to open, so that the water inlet pipe inputs cold water into the heating component for heating.

[0037] Controlling the water inlet valve to open can include controlling the water inlet valve to open completely or controlling the water inlet valve to open to a certain angle. The specific angle at which the water inlet valve needs to open can be adjusted according to the preheating situation of the heating component. The threshold temperature can be understood as the temperature at which the heating component can heat the water conveyed in the water inlet pipe to the water temperature required by the user when the water inlet valve is fully open. The threshold temperature can also be understood as the temperature at which the heating component can effectively exchange heat with the water currently conveyed in the water inlet pipe when the water inlet valve is opened to a certain angle, that is, the temperature that can ensure that warm and hot water can flow out after heat exchange by the heating component.

[0038] In the embodiment of the present application, since the water inlet valve on the water inlet pipe is closed before the heating component is preheated to the threshold temperature and the water inlet valve is opened after the heating component reaches the threshold temperature, it can be ensured that the cold water initially flowing into the heating component in the water inlet pipe can also be fully heated to hot water, so that all the water flowing out from the outlet end of the heating component is hot water. Thus, it can be avoided that when the outlet pipe of the water heater is closed and then opened again, the situation that cold water flows out again after the remaining hot water in the outlet pipe runs out due to insufficient heat exchange temperature of the heating component, and it can be ensured that hot water can always flow out from the outlet pipe when the water heater is closed and then opened again. At the same time, it can also be ensured that when the water heater has not been used for a long time, hot water can flow out quickly after the remaining cold water in the outlet pipe is drained, reducing the waiting time of the user for the water heater to produce hot water and effectively improving the user experience.

[0039] It should be noted that the water heater control method of each embodiment of the present application can be applied to any water heater in the prior art. The water heater at least includes a water inlet pipe for conveying cold water, an outlet pipe for outputting hot water, a heating component for heating cold water, a water inlet valve for controlling the water inflow in the water inlet pipe, and a water outlet valve for controlling the water outflow in the outlet pipe.

[0040] In one example, a water heater may include a heating component, an inlet pipe, and an outlet pipe. The inlet pipe is connected to the heating component and is used to deliver cold water to the heating component. The heating component is used to heat the cold water input in the inlet pipe. The outlet pipe is connected to the heating component and is used to output the water heated by the heating component for user use. An inlet valve for controlling the water delivery flow rate of the inlet pipe may be provided on the inlet pipe. An outlet valve for controlling the water output may be provided on the outlet pipe. The heating component can be understood as a component or multiple cooperating components in the water heater for heating cold water. For example, when the water heater is a gas water heater or a wall-mounted boiler, the heating component may include a burner, a heat exchanger, a blower, and a gas pipe. The gas pipe is connected to the burner, the blower is arranged on the air inlet side of the burner, and the heat exchanger is arranged on the air outlet side of the burner. The inlet pipe and the outlet pipe are respectively connected to the heat exchanger.

[0041] In one implementation, as Figure 2 shown, when it is detected that the temperature of the heating component reaches the threshold temperature, controlling the opening of the inlet valve includes:

[0042] S31: When it is detected that the temperature of the heating component reaches the first threshold temperature, control the inlet valve to open to the first position.

[0043] The first position can be an opening position at any angle between the closed state and the fully open state of the inlet valve. The first position can be a fixed opening position of the inlet valve or a position that can be adjusted as needed. The first threshold temperature can be a certain temperature lower than the actual operating temperature of the heating component.

[0044] In an application example, assume that the operating temperature for heating cold water after the heating component is turned on is 45 °C. When it is detected that the preheating temperature of the heating component reaches the first threshold temperature of 30 °C, the inlet valve can be controlled to open from the closed state to a small angle, so that a small amount of water can flow into the heating component in the inlet pipe for heat exchange. Since the amount of cold water flowing into the heating component in the inlet pipe is small, the heating component at the first threshold temperature can meet the heat exchange requirements of the small amount of cold water, thereby ensuring that the warm water that can flow out for user use after heat exchange through the heating component. Furthermore, it can effectively reduce the waiting time for the user to get hot water from the water heater and improve the user experience.

[0045] It should be noted that the specific temperature values of the first threshold temperature and the operating temperature of the heating component mentioned in the above example are only for illustrative purposes and are not specific limitations on the temperature values.

[0046] In one implementation, as Figure 3 shown, after controlling the inlet valve to open to the first position when it is detected that the temperature of the heating component reaches the first threshold temperature, it includes:

[0047] S32: When it is detected that the temperature of the heating component reaches the second threshold temperature, control the water inlet valve to be fully opened. The second threshold temperature is greater than the first threshold temperature. The second threshold temperature can also be less than or equal to the actual operating temperature of the heating component. When the temperature of the heating component reaches the second threshold temperature, it indicates that the heating component has been preheated to a temperature capable of fully exchanging heat with the cold water in the water inlet pipe, that is to say, the water heater enters the normal operating state and can meet the user's hot water usage requirements.

[0048] In an application example, assume that the operating temperature for heating cold water after the heating component is turned on is 45°C. When it is detected that the preheating temperature of the heating component reaches the first threshold temperature of 30°C, the water inlet valve can be controlled to open from the closed state to a small angle, so that a small amount of water can flow into the heating component in the water inlet pipe for heat exchange, and after being heated, warm water flows out from the water outlet pipe for the user to use. During the user's use, when it is detected that the preheating temperature of the heating component gradually rises to the second threshold temperature of about 40°C - 45°C, control the water inlet valve to change from the current small-angle open position to the fully open state. At this time, more cold water in the water inlet pipe can be sent into the heating component for heat exchange, so as to ensure that hotter and larger-flow hot water can gradually flow out from the water outlet pipe for the user to use.

[0049] It should be noted that the specific temperature values of the first threshold temperature, the second threshold temperature, and the operating temperature of the heating component mentioned in the above example are only for illustrative purposes and are not specific limitations on the temperature values.

[0050] In one implementation, as Figure 4 shown, when it is detected that the temperature of the heating component reaches the threshold temperature, controlling the water inlet valve to open includes:

[0051] S33: When it is detected that the temperature of the heating component reaches the second threshold temperature, control the water inlet valve to be fully opened. The second threshold temperature can be less than or equal to the actual operating temperature of the heating component.

[0052] In an application example, assume that the operating temperature for heating cold water after the heating component is turned on is 45°C. When it is detected that the preheating temperature of the heating component reaches the second threshold temperature of about 40°C - 45°C, the water inlet valve can be controlled to change from the closed state to the fully open state. At this time, the second threshold temperature of the heating component can fully meet the heat exchange of the heating component with the cold water transported in the water inlet pipe. Therefore, controlling the water inlet valve to be fully opened at this time can also ensure that the cold water in the water inlet pipe can be fully heated to hot water for the user to use.

[0053] It should be noted that the specific temperature values of the second threshold temperature and the operating temperature of the heating component mentioned in the above examples are only for illustrative purposes and do not specifically limit the temperature values.

[0054] In one embodiment, as Figure 5 shown, when the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close includes:

[0055] S11: When the difference between the time when the water outlet valve is opened and the time when the water outlet valve was last closed reaches the threshold time, control the water inlet valve to close.

[0056] Since the heating component will suspend operation after the water outlet valve is closed, the temperature of the heating component will gradually decrease. If the time interval from when the water outlet valve is closed to when it is opened again is too long, the self - temperature of the heating component will drop to a level where it cannot meet the requirement of timely heat exchange for the cold water that first flows into the water inlet pipe. Therefore, at this time, it is necessary to control the water inlet valve to close to prevent the cold water in the water inlet pipe from flowing into the heating component that is not yet capable of effective heat exchange. Wait until the heat exchange temperature of the heating component pre - heats to a level that can meet a certain cold water heat exchange requirement before opening the water inlet valve. This ensures that the heating component can effectively heat - exchange the cold water flowing into the water inlet pipe and prevents cold water from flowing out of the outlet end of the heating component.

[0057] The threshold time can be understood as the time required for the temperature of the heating component to drop from the normal operating temperature to a temperature at which it cannot effectively conduct heat exchange. If the user closes the water outlet valve and then opens it again after dozens of seconds, the water inlet valve may not need to be closed at this time, and the operating temperature of the heating component can still ensure the heat exchange requirement. If the user closes the water outlet valve and then opens it again within five minutes or half an hour after closing the water outlet valve, the water inlet valve needs to be closed to allow the heating component to pre - heat first.

[0058] It should be noted that the specific times mentioned in this embodiment are only used to illustrate the influence of the time interval length on the control of the water inlet valve and do not limit the length of time.

[0059] In one embodiment, as Figure 6 shown, when the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close further includes:

[0060] S12: When the water outlet valve is opened and the temperature of the heating component is lower than the preset temperature, control the water inlet valve to close.

[0061] Lower than the preset temperature can be understood as lower than the normal operating temperature of the heating component or a temperature that cannot meet the heat exchange requirement of the current water flow in the water inlet pipe. The specific preset temperature can be selected and adjusted according to the performance of the water heater and the user's usage requirements.

[0062] In an application example, when the water outlet valve is opened, the current temperature of the heating component is detected. If the current temperature of the heating component is lower than a certain preset value, it indicates that the heating component cannot meet the heat exchange requirements of the cold water in the water inlet pipe at this time. At this time, it is necessary to stop the cold water in the water inlet pipe from flowing into the heating component, and then open the water inlet valve after the heating component is preheated to a certain temperature. This ensures that the heating component can effectively heat the cold water flowing into the water inlet pipe, and avoids the cold water initially input into the heating component from flowing out of the outlet end of the heating component without effective heat exchange.

[0063] In one embodiment, as Figure 7 shown, when the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close further includes:

[0064] S13: When the water outlet valve is opened and the temperature of the water remaining in the water outlet pipe is greater than or equal to the third threshold temperature, control the water inlet valve to close.

[0065] The third threshold temperature can be the temperature that keeps the water remaining in the water outlet pipe warm. At this time, in order to ensure that hot water can continuously flow out of the water outlet pipe when the water outlet valve is opened, it is necessary to use the heating component to heat the cold water input into the water inlet pipe in time before the hot water remaining in the water outlet pipe runs out, so as to ensure that there is always hot water flowing out of the water outlet pipe. However, since the heat exchange temperature of the heating component may decrease during the process from the water outlet valve being closed to being opened again, it is necessary to first close the water inlet valve to prevent the cold water in the water inlet pipe from flowing into the heating component, so that the heating component can be preheated first. This ensures that the cold water initially flowing into the heating component in the water inlet pipe can also be fully heat exchanged, so that hot water can still continue to flow out for users to use after the hot water remaining in the water outlet pipe runs out.

[0066] In one embodiment, as Figure 8 shown, when the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close further includes:

[0067] S14: When the water outlet valve is opened and the water flow signal at the water inlet of the water inlet pipe is detected to be stable, control the water inlet valve to close.

[0068] The detection of the water flow signal at the water inlet can be carried out by a water flow sensor. By detecting the stability of the water flow signal, it can be confirmed whether cold water is continuously flowing into the water inlet pipe. That is to say, it can be judged whether the user normally opens the water heater for use.

[0069] In an example. The temperature detection of the heating component and the water temperature detection in the water outlet pipe in the above embodiments can both be detected by a temperature sensor. The valves mentioned in the above embodiments can adopt any valve in the prior art as long as it can realize the opening and closing control of the valve.

[0070] In one example, when the water outlet valve is opened, it is also necessary to detect the power-on status of each device in the water heater and whether each device is working properly. When each device can work properly, then execute each step of the above water heater control method.

[0071] In one embodiment, as Figure 9 shown, the water heater control method includes:

[0072] If it is detected that the user opens the water outlet valve in the standby state of the water heater, then determine whether each device of the water heater starts normally.

[0073] If the start is not normal, report a fault. If the start is normal, then further determine whether the heating component is working properly.

[0074] If the heating component does not work properly, report a fault. If the heating component works properly, then use the heating component to heat the cold water input in the water inlet pipe until it is detected that the user closes the water outlet valve and then control the heating component to close.

[0075] When it is detected that the user opens the water outlet valve again, determine whether the time since the last water shut-off is less than a preset time interval.

[0076] If it is not less than the preset time interval, then fully open the water inlet valve on the water inlet pipe. If it is less than the preset time interval, then close or reduce the water inlet valve on the water inlet pipe. In order to avoid the situation that when the water inlet valve is opened slightly, the water heater misidentifies the small water flow rate in the water inlet pipe as the preset flameout water flow rate, the preset value of the flameout water flow rate can be increased or the flameout water flow rate detection can be not set.

[0077] Start the blower of the heating component, open the solenoid valve on the gas pipeline to deliver gas to the burner, and start the burner to ignite.

[0078] Determine whether the ignition needle discharge of the burner is normal and whether the burner burns normally.

[0079] If it is not normal, report a fault. If it is normal, then open the water inlet valve on the water inlet pipe, allow the cold water to flow into the heat exchanger of the heating component for heat exchange, and flow the heated hot water out of the water outlet pipe for the user to use.

[0080] If it is detected that the user closes the water outlet valve and then opens the water outlet valve again, repeat the above steps.

[0081] Figure 10 Show the structural block diagram of the water heater control device according to an embodiment of the present application. As Figure 10 shown, the water heater control device 100 may include:

[0082] The first control module 110 is used to control the water inlet valve on the water inlet pipe to close when the water outlet valve is opened.

[0083] The second control module 120 is configured to control a heating component in the water heater to perform preheating.

[0084] The third control module 130 is configured to control an inlet valve to open when it is detected that the temperature of the heating component reaches a threshold temperature, so that cold water is input into the heating component through an inlet pipe for heating.

[0085] In one embodiment, the third control module 130 includes:

[0086] The first control sub-module is configured to control the inlet valve to open to a first position when it is detected that the temperature of the heating component reaches a first threshold temperature.

[0087] In one embodiment, the third control module 130 further includes:

[0088] The second control sub-module is configured to control the inlet valve to fully open when it is detected that the temperature of the heating component reaches a second threshold temperature, and the second threshold temperature is greater than the first threshold temperature.

[0089] In one embodiment, the third control module 130 further includes:

[0090] The third control sub-module is configured to control the inlet valve to fully open when it is detected that the temperature of the heating component reaches the second threshold temperature.

[0091] In one embodiment, the first control module 110 includes:

[0092] The fourth control sub-module is configured to control the inlet valve to close when the difference between the time when the outlet valve is opened and the time when the outlet valve was last closed reaches a threshold time.

[0093] In one embodiment, the first control module 110 includes:

[0094] The fifth control sub-module is configured to control the inlet valve to close when the outlet valve is opened and the temperature of the heating component is lower than a preset temperature.

[0095] In one embodiment, the first control module 110 includes:

[0096] The sixth control sub-module is configured to control the inlet valve to close when the outlet valve is opened and the temperature of the water remaining in the outlet pipe is greater than or equal to a third threshold temperature.

[0097] In one embodiment, the first control module 110 includes:

[0098] The seventh control sub-module is used to control the inlet valve to close when the outlet valve is opened and the water flow signal at the water inlet of the inlet pipe is detected to be stable.

[0099] For the functions of the modules in each device of the embodiments of the present application, reference may be made to the corresponding descriptions in the above methods, and details are not described herein again.

[0100] As another aspect of the embodiments of the present application, the present embodiment further provides a heat exchanger, including an inlet valve, an outlet valve, and a heating component, and further including a controller for executing the water heater control method of any one of the above embodiments.

[0101] Figure 11 The structural block diagram of a terminal according to an embodiment of the present application is shown. As Figure 11 shown, the terminal includes: a memory 910 and a processor 920, and instructions that can run on the processor 920 are stored in the memory 910. When the processor 920 executes the instructions, the water heater control method in the above embodiments is implemented. The number of the memory 910 and the processor 920 can be one or more. The terminal is intended to represent various forms of digital computers, such as, a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The terminal can also represent various forms of mobile devices, such as, a personal digital processor, a cellular phone, a smart phone, a wearable device, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described herein and / or required.

[0102] The terminal may further include a communication interface 930 for communicating with external devices and performing data interaction and transmission. Each device is connected to each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor 920 can process instructions executed within the terminal, including instructions for storing graphical information of the GUI to be displayed on an external input / output device (such as a display device coupled to the interface) in the memory or on the memory. In other embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple terminals can be connected, and each device provides some necessary operations (such as, as a server array, a set of blade servers, or a multi-processor system). The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 11 only one thick line is shown in, but it does not mean that there is only one bus or one type of bus.

[0103] Optionally, in a specific implementation, if the memory 910, the processor 920, and the communication interface 930 are integrated on a single chip, the memory 910, the processor 920, and the communication interface 930 can communicate with each other through an internal interface.

[0104] It should be understood that the above-mentioned processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. It is worth noting that the processor may be a processor that supports the advanced RISC machines (ARM) architecture.

[0105] An embodiment of the present application provides a computer-readable storage medium (such as the above-mentioned memory 910), which stores computer instructions. When the program is executed by the processor, the method provided in the embodiment of the present application is implemented.

[0106] Optionally, the memory 910 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the terminal of the water heater control method, etc. In addition, the memory 910 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 910 may optionally include a memory remotely provided with respect to the processor 920, and these remote memories may be connected to the terminal of the water heater control method through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0107] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0108] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0109] Any process or method description represented in a flowchart or described in other ways herein may be understood to represent a module, segment, or portion of code including one or more (two or more) executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present application includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed.

[0110] The logic and / or steps represented in a flowchart or described in other ways herein, for example, may be considered as a sequenced list of executable instructions for implementing a logical function and may be specifically implemented in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device).

[0111] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. All or part of the steps of the method in the above embodiments can be completed by a program instructing relevant hardware, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0112] In addition, each functional unit in various embodiments of the present application may be integrated into one processing module, may exist separately as individual physical units, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the above-mentioned integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. The storage medium may be a read-only memory, a magnetic disk, an optical disc, or the like.

[0113] As described above, the foregoing are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A water heater control method, characterized in that, Comprising: When the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close; Controlling the heating component in the water heater to preheat; When it is detected that the temperature of the heating component reaches the threshold temperature, controlling the water inlet valve to open so that the water inlet pipe inputs cold water into the heating component for heating.

2. The method according to claim 1, characterized in that, When it is detected that the temperature of the heating component reaches the threshold temperature, controlling the water inlet valve to open, including: When it is detected that the temperature of the heating component reaches the first threshold temperature, controlling the water inlet valve to open to the first position.

3. The method according to claim 2, characterized in that, After controlling the water inlet valve to open to the first position when it is detected that the temperature of the heating component reaches the first threshold temperature, including: When it is detected that the temperature of the heating component reaches the second threshold temperature, controlling the water inlet valve to open fully, where the second threshold temperature is greater than the first threshold temperature.

4. The method according to claim 1, characterized in that, When it is detected that the temperature of the heating component reaches the threshold temperature, controlling the water inlet valve to open, including: When it is detected that the temperature of the heating component reaches the second threshold temperature, controlling the water inlet valve to open fully.

5. The method according to claim 1, characterized in that, When the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close, including: When the difference between the time when the water outlet valve is opened and the time when the water outlet valve was last closed reaches the threshold time, controlling the water inlet valve to close.

6. The method according to claim 1, characterized in that, When the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close, further including: When the water outlet valve is opened and the temperature of the heating component is lower than the preset temperature, controlling the water inlet valve to close.

7. The method according to claim 1, characterized in that, When the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close, further including: When the water outlet valve is opened and the temperature of the water remaining in the water outlet pipe is greater than or equal to the third threshold temperature, controlling the water inlet valve to close.

8. The method according to claim 1, characterized in that, When the water outlet valve is opened, controlling the water inlet valve on the water inlet pipe to close, further including: When the water outlet valve is opened and it is detected that the water flow signal at the water inlet of the water inlet pipe is stable, controlling the water inlet valve to close.

9. A water heater control device, characterized in that, Comprising: A first control module for controlling the water inlet valve on the water inlet pipe to close when the water outlet valve is opened; A second control module for controlling the heating component in the water heater to preheat; A third control module for controlling the water inlet valve to open when it is detected that the temperature of the heating component reaches the threshold temperature, so that the water inlet pipe inputs cold water into the heating component for heating.

10. A water heater, comprising an inlet valve, an outlet valve and a heating component, characterized in that, Further comprising a controller for executing the method according to any one of claims 1 to 8.

11. A terminal, characterized in that, Comprising: At least one processor; And A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method according to any one of claims 1 to 8.

12. A computer-readable storage medium storing computer instructions therein, and when the computer instructions are executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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