Control method and control device of water heater and water heater

Abstract

The application relates to a water heater control method, a control device and a water heater. The water heater control method comprises the following steps: acquiring a working mode of the water heater, the working mode comprising a first working mode, the first working mode indicating that an electrolysis device of the water heater needs to work, the electrolysis device being connected in series with a heat exchanger of the water heater; determining that the water heater is in the first working mode, acquiring polarities of first and second electrodes of the electrolysis device, one of the first and second electrodes being an anode and the other being a cathode; in the case that a detection device arranged on a water inlet pipe connected with the heat exchanger detects a water flow signal, controlling the polarities of the first and second electrodes of the electrolysis device to change; and determining that the polarities of the first and second electrodes change, and controlling the electrolysis device to perform electrolysis work. The water heater control method makes the polarities of the electrodes of the electrolysis device different each time the water heater is started, and ensures that no water scale is formed on the surface of the electrolysis electrode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a control method and control device of a water heater and the water heater. BACKGROUND

[0002] Since household appliances such as water heaters, water dispensers, fruit and vegetable cleaning machines have a water-rich environment, there is a problem of a large number of microorganisms such as bacteria breeding. Taking a water heater as an example, there are a large number of bacteria in the water storage liner that are harmful to human health, and therefore the water heater needs to be sterilized.

[0003] Some existing water heater products use electrolysis devices to sterilize the water in the pipeline. Since there are a large number of impurities in the water, scale is easily formed on the electrode column of the electrolysis device, affecting the electrolysis efficiency. SUMMARY

[0004] The present application aims to provide a control method and control device of a water heater and the water heater, so that the polarity of the electrode of the electrolysis device of the water heater is different each time it is started, ensuring that the surface of the electrolysis electrode is not scaled and the electrolysis efficiency is not affected.

[0005] The present application provides a control method of a water heater, which comprises: acquiring a working mode of the water heater, wherein the working mode comprises a first working mode, the first working mode indicating that an electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with a heat exchanger of the water heater; acquiring a polarity of a first electrode and a second electrode of the electrolysis device in a case where it is determined that the water heater is in the first working mode, wherein the polarity of one of the first electrode and the second electrode is an anode and the polarity of the other is a cathode; controlling the polarity of the first electrode and the second electrode to change in a case where it is determined that a detection device detects a water flow signal, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and controlling the electrolysis device to perform electrolysis work in a case where it is determined that the polarity of the first electrode and the second electrode changes.

[0006] In a possible implementation, the control of the electrolysis device to perform electrolysis work comprises: determining a target working mode of the water heater and a set rule corresponding to the target working mode, wherein the first working mode comprises a plurality of target working modes, and at least two target working modes correspond to different set rules; and controlling the polarity of the first electrode and the second electrode of the electrolysis device to change alternately according to the corresponding set rules.

[0007] In a possible implementation, the control method further comprises: acquiring a water flow parameter of the water inlet pipe detected by the detection device; and controlling an electrolysis power of the electrolysis device according to the water flow parameter.

[0008] In a possible implementation, the control method further includes: in a case where it is determined that the water heater is in a second working mode, controlling the electrolysis device to remain stopped, wherein the working modes include the second working mode, and the second working mode indicates that the electrolysis device does not need to work.

[0009] In a possible implementation, the control method further includes: determining a heating type of the working mode of the water heater, the heating type including a first type and a second type; in a case where the heating type is the first type, controlling the heat exchanger to start working; and in a case where the heating type is the second type, controlling the heat exchanger to remain stopped.

[0010] In a second aspect, the present application provides a control device of a water heater, including: an acquisition module, configured to acquire a working mode of the water heater, wherein the working mode includes a first working mode, the first working mode indicating that an electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with a heat exchanger of the water heater; and in a case where it is determined that the water heater is in the first working mode, acquiring polarities of a first electrode and a second electrode of the electrolysis device, wherein one of the first electrode and the second electrode is an anode, and the other is a cathode; and a control module, configured to: in a case where a detection device detects a water flow signal, control the polarities of the first electrode and the second electrode of the electrolysis device to change, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and in a case where the polarities of the first electrode and the second electrode change, control the electrolysis device to perform electrolysis work.

[0011] In a possible implementation, the control module is specifically configured to: determine a target working mode of the water heater and a set rule corresponding to the target working mode, wherein the first working mode includes multiple target working modes, and at least two target working modes correspond to different set rules; and control the polarities of the first electrode and the second electrode of the electrolysis device to change alternately according to the corresponding set rules.

[0012] In a possible implementation, the acquisition module is further configured to acquire a water flow parameter in the water inlet pipe detected by the detection device; and the control module is further configured to control an electrolysis power of the electrolysis device according to the water flow parameter.

[0013] In a possible implementation, the control module is further configured to, in a case where it is determined that the water heater is in a second working mode, control the electrolytic device to remain in a stop state, wherein the working modes include the second working mode, and the second working mode indicates that the electrolytic device does not need to work.

[0014] In a possible implementation, the control module is further configured to: determine a heating type of the working mode of the water heater, the heating type including a first type and a second type; in a case where the heating type is the first type, control the heat exchanger to start working; and in a case where the heating type is the second type, control the heat exchanger to remain in a stop state.

[0015] In a third aspect, the present application provides a water heater, including a processor and a memory, the processor being configured to execute a control program of the water heater stored in the memory, so as to implement the steps of the control method of the water heater.

[0016] In a fourth aspect, the present application further provides a computer storage medium, storing computer executable instructions, the computer executable instructions being configured to execute the steps of the control method of the water heater according to the first aspect.

[0017] The control method of the water heater provided by the present application can obtain the polarities of the first electrode and the second electrode of the electrolytic device in a case where it is determined that the water heater is in a first working mode (i.e., the electrolytic device needs to work), and then change the polarities of the first electrode and the second electrode in a case where it is determined that the detection device detects water flow (i.e., the water heater starts to work in the first working mode), so that the polarities of the electrodes of the electrolytic device are different each time the water heater is started, and the surface of the electrolytic electrode is ensured to be free of water scale, and the electrolytic efficiency is not affected.

[0018] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0019] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals.

[0020] Figure 1 A flowchart of a control method of a water heater provided by an embodiment of the present application;

[0021] Figure 2 An exemplary process diagram of a control method of a water heater according to an embodiment of the present application in an oxygen-enriched washing working mode;

[0022] Figure 3An exemplary process chart of the control method of the water heater according to the embodiment of the present application in the kitchen hot washing mode;

[0023] Figure 4 An exemplary process chart of the control method of the water heater according to the embodiment of the present application in the kitchen cold washing mode;

[0024] Figure 5 A structural schematic diagram of the control device of the water heater according to the embodiment of the present application;

[0025] Figure 6 A structural schematic diagram of the water heater according to the embodiment of the present application. DETAILED DESCRIPTION

[0026] Features and exemplary embodiments of various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some of these specific details. The description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessary obscuring of the present application; and, for clarity, the dimensions of the regions of the structures can be exaggerated. In addition, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0027] In order to solve the problem that scale is easily formed on the electrode column of the electrolysis device of the existing water heater product, affecting the electrolysis efficiency, the present application provides a control method of a water heater, which makes the polarity of the electrode of the electrolysis device of the water heater different from the last time each time the water heater is started, ensuring that the surface of the electrolysis electrode is not scaled, and the electrolysis efficiency is not affected.

[0028] Figure 1 A flowchart of the control method of the water heater according to the embodiment of the present application is shown. As shown in Figure 1 The control method of the water heater includes the following steps:

[0029] S101, obtaining the working mode of the water heater, wherein the working mode includes a first working mode, and the first working mode indicates that the electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with the heat exchanger of the water heater.

[0030] That is, the first working mode is a mode that needs to be sterilized, and at this time, the electrolysis device needs to work.

[0031] S102, in the case of determining that the water heater is in the first working mode, the polarity of the first electrode and the second electrode of the electrolysis device is obtained, wherein the polarity of one of the first electrode and the second electrode is an anode, and the polarity of the other is a cathode.

[0032] In addition, in the case of determining that the water heater is in the second working mode, the electrolysis device is controlled to stop working, wherein the working mode includes the second working mode, and the second working mode indicates that the electrolysis device does not need to work. That is, the second working mode is a mode in which sterilization is not required, and at this time, the electrolysis device does not need to work.

[0033] S103, in the case of determining that the detection device detects the water flow signal, the polarity of the first electrode and the second electrode of the electrolysis device is changed, wherein the detection device is arranged on the water inlet pipe connected with the water inlet of the heat exchanger.

[0034] Exemplarily, the detection device can be a flow sensor, and the detection device can be connected with the control device of the water heater. The detection device feeds back the water flow signal of the water inlet pipe to the controller, and the controller can control the polarity of the first electrode and the second electrode of the electrolysis device to change after receiving the water flow signal.

[0035] S104, in the case of determining that the polarity of the first electrode and the second electrode is changed, the electrolysis device is controlled to work.

[0036] The control method of the water heater provided in the application can obtain the polarity of the first electrode and the second electrode of the electrolysis device in the case of determining that the water heater is in the first working mode (i.e. the electrolysis device needs to work), and then the polarity of the first electrode and the second electrode can be changed in the case of determining that the detection device detects the water flow (i.e. the water heater starts to work in the first working mode). In this way, the polarity of the electrode of the electrolysis device is different each time the water heater is started, so that the surface of the electrolysis electrode is not scaled, and the electrolysis efficiency is not affected.

[0037] Further, in order to better meet the needs of users and save power, the control method further comprises: obtaining a water flow parameter in the water inlet pipe detected by the detection device; and controlling the electrolysis power of the electrolysis device according to the water flow parameter.

[0038] In some embodiments, the electrolysis device is controlled to work, and the target working mode of the water heater and the set rule corresponding to the target working mode are determined first, wherein the first working mode includes multiple target working modes, and at least two target working modes correspond to different set rules; then, the polarity of the first electrode and the second electrode of the electrolysis device is controlled to change alternately according to the corresponding set rule.

[0039] For example, the setting rule can be that the polarity of the first electrode and the second electrode is alternately changed at an interval setting time, or the polarity of the first electrode and the second electrode is alternately changed according to a rule of decreasing interval time, or the polarity of the first electrode and the second electrode is alternately changed according to a rule of increasing interval time. For example, the plurality of target working modes can include oxygen-rich washing, kitchen hot washing, and kitchen cold washing. In addition, the setting rules corresponding to the target working modes such as oxygen-rich washing, kitchen hot washing, and kitchen cold washing can be different or the same, for example, the polarity of the first electrode and the second electrode is alternately changed at an interval setting time.

[0040] Further, in order to determine whether the heat exchanger of the water heater needs to work, the control method can further include: determining a heating type of the working mode of the water heater, the heating type including a first type and a second type; in the case that the heating type is the first type, controlling the heat exchanger to start working; for example, in the oxygen-rich washing and kitchen hot washing working modes, the heat exchanger needs to be controlled to work. In the case that the heating type is the second type, controlling the heat exchanger to keep stopping working. For example, in the kitchen cold washing working mode, the heat exchanger needs to be controlled to stop working.

[0041] That is, the first type is to need heating, and the second type is not to need heating. In some embodiments, the water heater is a gas water heater, and the gas water heater includes a burner. When heating is needed, the burner and the heat exchanger can be controlled to work. The burner is used to burn combustible gas, and the heat exchanger is used to flow water and heat the water by using the heat generated by the burner.

[0042] Hereinafter, taking oxygen-rich washing, kitchen hot washing, and kitchen cold washing as examples and combining the above-mentioned control method of the water heater, the control method of the water heater of the embodiments of the present application will be introduced. Figures 2 to 4 The control method of the water heater of the embodiments of the present application is introduced, wherein the setting rules corresponding to the target working modes such as oxygen-rich washing, kitchen hot washing, and kitchen cold washing are the same, that is, the polarity of the first electrode and the second electrode is alternately changed at an interval setting time, and the water heater can be a gas water heater.

[0043] Figure 2 An exemplary process diagram of the control method of the water heater of the embodiments of the present application in the oxygen-rich washing working mode is shown in FIG. 1. As shown in FIG. 1, after the oxygen-rich washing (also referred to as oxygen-increasing washing) working mode is selected, water is started, the mainboard (such as a controller) detects a water flow signal (for example, a detection device feeds back a water flow signal of a water inlet pipe to the controller), the burner of the water heater starts to burn, the electrolysis device starts to work after N seconds, and the mainboard changes the electrode polarity every S minutes of the working of the electrolysis device. Then, the water is turned off, the burner stops burning, the mainboard turns off the electrolysis device, and the control ends. Figure 2

[0044] ​In which, the oxygen-rich washing mode can be selected during bathing. In addition, since it takes a certain time to heat the water, the electrolytic device starts to work N seconds after the water heater starts to burn. And the main board changes the electrode polarity every S minutes of the electrolytic device, which can ensure that the electrolytic electrode surface does not scale.

[0045] Figure 3 An exemplary process chart of the control method of the water heater of the embodiment of the application in the kitchen hot washing mode is shown in Figure 3 After selecting the kitchen hot washing mode, start to use water, the main board (such as the controller) detects the water flow signal (for example, the detection device feeds back the water flow signal of the water inlet pipe to the controller), the burner of the water heater starts to burn, and the electrolytic device starts to work N seconds later. And the main board changes the electrode polarity every S minutes of the electrolytic device; then, turn off the water, the burner stops burning, and the main board turns off the electrolytic device; then, exit the kitchen hot washing mode X minutes later, and the control ends.

[0046] Since seafood and other foods are not suitable for kitchen hot washing, the kitchen hot washing mode can be exited X minutes after the water is turned off to avoid the problem that the kitchen hot washing mode is forgotten to be turned off when washing seafood and other foods later, and then the seafood and other foods are washed with hot water.

[0047] Figure 4 An exemplary process chart of the control method of the water heater of the embodiment of the application in the kitchen cold washing mode is shown in Figure 4 After selecting the kitchen hot washing mode, start to use water, the main board (such as the controller) detects the water flow signal (for example, the detection device feeds back the water flow signal of the water inlet pipe to the controller), the burner of the water heater starts to burn, and the electrolytic device starts to work N seconds later. And the main board changes the electrode polarity every S minutes of the electrolytic device; then, turn off the water, the burner stops burning, and the main board turns off the electrolytic device; then, exit the kitchen hot washing mode X minutes later, and the control ends.

[0048] In this way, the electrolytic device can also work when cold water washing is performed. And since the kitchen cold washing mode can be automatically exited X minutes after the water is turned off, that is, the selected working mode can be automatically exited after a certain time of turning off the water, the problem that hot water cannot flow out when bathing can be avoided.

[0049] In Figures 2 to 4 Among the three working modes shown in the figure, the case that the water heater may not be used for S minutes is considered, that is, the electrode polarity is changed after S minutes, and the electrode polarity of the electrolytic water device is different each time the water heater is started, which ensures that the electrolytic electrode surface does not scale. In addition, the times N, S, and X can be controlled by program according to the device and test results.

[0050] The control method of the water heater provided by the embodiments of the present application combines the electrolysis control scheme with the product working mode control, and the control logic is simple. For example, when it is determined that the water heater is in the first working mode (i.e., the electrolysis device needs to work), the polarity of the first electrode and the second electrode of the electrolysis device can be obtained. Then, when it is determined that the detection device detects the water flow (i.e., the water heater starts to work in the first working mode), the polarity of the first electrode and the second electrode can be changed. In this way, the polarity of the electrode of the electrolysis device of the water heater is different each time, which ensures that the electrolysis electrode surface is not covered with water scale and the electrolysis efficiency is not affected.

[0051] Figure 5 The control device of the water heater provided by the embodiments of the present application is shown in a structural schematic diagram. As shown in the figure, Figure 5 The control device of the water heater includes an acquisition module 501 and a control module 502. The acquisition module 501 is configured to acquire the working mode of the water heater, wherein the working mode includes a first working mode, and the first working mode indicates that the electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with the heat exchanger of the water heater; and when it is determined that the water heater is in the first working mode, the polarity of the first electrode and the second electrode of the electrolysis device is acquired, wherein the polarity of one of the first electrode and the second electrode is an anode, and the polarity of the other is a cathode. The control module 502 is configured to control the polarity of the first electrode and the second electrode of the electrolysis device to change when it is determined that the detection device detects the water flow signal, wherein the detection device is arranged on the water inlet pipe, and the water inlet pipe is connected with the water inlet of the heat exchanger; and when it is determined that the polarity of the first electrode and the second electrode changes, the electrolysis device is controlled to perform electrolysis work.

[0052] In a possible implementation, the control module 502 is specifically configured to: determine the target working mode of the water heater and the set rule corresponding to the target working mode, wherein the first working mode includes multiple target working modes, and at least two target working modes correspond to different set rules; and control the polarity of the first electrode and the second electrode of the electrolysis device to change alternately according to the corresponding set rule.

[0053] In a possible implementation, the acquisition module 501 is further configured to acquire the water flow parameter in the water inlet pipe detected by the detection device; and the control module 502 is further configured to control the electrolysis power of the electrolysis device according to the water flow parameter.

[0054] In a possible implementation, the control module 502 is further configured to control the electrolysis device to remain stopped when it is determined that the water heater is in a second working mode, wherein the working mode includes the second working mode, and the second working mode indicates that the electrolysis device does not need to work.

[0055] In a possible implementation, the control module 502 is further configured to determine a heating type of the working mode of the water heater, the heating type including a first type and a second type; control the heat exchanger to start working when the heating type is the first type; and control the heat exchanger to keep stopping working when the heating type is the second type.

[0056] Figure 6 A structure diagram of a water heater is provided in the embodiments of the present application. As shown in Figure 6 the water heater includes at least one processor 601, a memory 602, at least one network interface 604 and other user interfaces 603. The various components in the water heater 600 are coupled together through a bus system 605. It can be understood that the bus system 605 is configured to realize the connection communication between the components. The bus system 605 includes not only a data bus, but also a power supply bus, a control bus and a status signal bus. However, for the purpose of clear illustration, all the buses are marked as the bus system 605 in the Figure 5 .

[0057] The user interface 603 can include a display, a keyboard or a clicking device (for example, a mouse, a trackball, a touchpad or a touch screen, etc.).

[0058] It is to be understood that the memory 602 in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM) used as an external cache. By way of example, but not limitation, many forms of RAM can be used, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synch link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 602 described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0059] In some embodiments, the memory 602 stores the following elements: executable units or data structures, or a subset thereof, or an extended set thereof. For example, the memory 602 includes an operating system 6021 and an application program 6022. Among them, the operating system 6021 contains various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 6022 contains various application programs, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. Moreover, the program for implementing the method of the embodiments of the present application can be included in the application program 6022.

[0060] In the embodiments of the present application, the processor 601 is configured to execute the method steps provided by the embodiments by invoking the programs or instructions stored in the memory 602, specifically, the programs or instructions stored in the application program 6022. For example, the processor 601 is configured to execute the following method steps: obtaining a working mode of the water heater, wherein the working mode includes a first working mode, and the first working mode indicates that the electrolytic device of the water heater needs to work, and the electrolytic device is connected in series with the heat exchanger of the water heater; obtaining polarities of a first electrode and a second electrode of the electrolytic device in a case where it is determined that the water heater is in the first working mode, wherein the polarity of one of the first electrode and the second electrode is an anode, and the polarity of the other is a cathode; controlling the polarities of the first electrode and the second electrode of the electrolytic device to change in a case where it is determined that the detection device detects a water flow signal, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and controlling the electrolytic device to perform electrolysis work in a case where it is determined that the polarities of the first electrode and the second electrode change.

[0061] The method disclosed in the embodiments of the present application can be applied to the processor 601 or implemented by the processor 601. The processor 601 can be an integrated circuit chip having a signal processing capability. In the implementation process, the steps of the above method can be completed by hardware integrated logic circuits in the processor 601 or by instructions in the form of software. The processor 601 described above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software units in the code processor for execution. The software unit can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage media in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and combines the hardware to complete the steps of the above method.

[0062] It can be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units can be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP Devices, DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

[0063] For a software implementation, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes can be stored in memory and executed by processors. The memory can be implemented within the processors or external to the processors.

[0064] The water heater provided by the embodiments can be a water heater as shown in Figure 6 may perform all steps of the control method of the water heater as shown in Figures 1-4 and achieve the technical effects of the control method of the water heater as shown in Figures 1-4 . For details, refer to the relevant description in Figures 1-4 . For brevity, the relevant description is not repeated here.

[0065] The embodiments of the present application also provide a storage medium (computer readable storage medium). The storage medium stores one or more programs. The storage medium can include a volatile memory, such as a random access memory, and / or can include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk drive, or a solid-state drive. The storage medium can also include a combination of the above-mentioned memories. The one or more programs stored in the storage medium can be executed by one or more processors to implement the control method of the water heater.

[0066] The processor is configured to execute a control program of the water heater stored in the memory to implement the following steps of the control method of the water heater, for example, including: obtaining a working mode of the water heater, wherein the working mode includes a first working mode, and the first working mode indicates that an electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with a heat exchanger of the water heater; obtaining polarities of a first electrode and a second electrode of the electrolysis device in a case where it is determined that the water heater is in the first working mode, wherein the polarity of one of the first electrode and the second electrode is an anode, and the polarity of the other is a cathode; controlling the polarities of the first electrode and the second electrode of the electrolysis device to change in a case where it is determined that the detection device detects a water flow signal, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and controlling the electrolysis device to perform electrolysis work in a case where it is determined that the polarities of the first electrode and the second electrode change.

[0067] Those skilled in the art should further appreciate that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be embodied in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, various components and steps have been described above generally in terms of their functionality, without delineating between hardware and software implementations that can be implemented. Hardware and software implementations of each example can be packaged together in one or more computer devices. A specific hardware implementation of any one example can be a packaged software program, and a specific software implementation of any one example can be a packaged hardware device. Depending on the technical application and design constraints, the described features, structures, or characteristics of the examples can be implemented in different ways. Skilled persons can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0068] It should be noted that the terms "one embodiment", "an embodiment", "some embodiments", "one example", "an example", "some examples" and the like used in the specification are intended to mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, but not necessarily in all embodiments of the application. In addition, such phrases are not necessarily referring to the same embodiment. In addition, when describing a particular feature, structure or characteristic in connection with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure or characteristic in connection with other embodiments whether explicitly described or not.

[0069] It should be noted that, in the present document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0070] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of a water heater, characterized by, The method comprises the following steps: acquiring a working mode of the water heater, wherein the working mode comprises a first working mode, and the first working mode indicates that an electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with a heat exchanger of the water heater; acquiring polarities of a first electrode and a second electrode of the electrolysis device in a case where it is determined that the water heater is in the first working mode, wherein one of the first electrode and the second electrode is an anode, and the other is a cathode; controlling the polarities of the first electrode and the second electrode to change in a case where it is determined that a detection device detects a water flow signal, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and controlling the electrolysis device to perform electrolysis work in a case where it is determined that the polarities of the first electrode and the second electrode change.

2. The control method according to claim 1, characterized by, The control of the electrolysis device to perform electrolysis work comprises the following steps: determining a target working mode of the water heater and a set rule corresponding to the target working mode, wherein the first working mode comprises multiple target working modes, and at least two target working modes correspond to different set rules; controlling the polarities of the first electrode and the second electrode of the electrolysis device to change alternately according to the corresponding set rules.

3. The control method according to claim 1, characterized by, The method further comprises the following steps: acquiring a water flow parameter in the water inlet pipe detected by the detection device; controlling an electrolysis power of the electrolysis device according to the water flow parameter.

4. The control method according to claim 1, characterized by, The method further comprises the following steps: controlling the electrolysis device to keep stopping working in a case where it is determined that the water heater is in a second working mode, wherein the working mode comprises the second working mode, and the second working mode indicates that the electrolysis device does not need to work.

5. The control method according to any one of claims 1 to 4, characterized by, The method further comprises the following steps: determining a heating type of the working mode of the water heater, wherein the heating type comprises a first type and a second type; controlling the heat exchanger to start working in a case where the heating type is the first type; controlling the heat exchanger to keep stopping working in a case where the heating type is the second type.

6. A control device for a water heater, characterized by The method comprises the following steps: an acquiring module is configured to acquire a working mode of the water heater, wherein the working mode comprises a first working mode, and the first working mode indicates that an electrolysis device of the water heater needs to work, and the electrolysis device is connected in series with a heat exchanger of the water heater; and acquire polarities of a first electrode and a second electrode of the electrolysis device in a case where it is determined that the water heater is in the first working mode, wherein one of the first electrode and the second electrode is an anode, and the other is a cathode; a control module is configured to control the polarities of the first electrode and the second electrode of the electrolysis device to change in a case where it is determined that a detection device detects a water flow signal, wherein the detection device is arranged on a water inlet pipe connected with a water inlet of the heat exchanger; and control the electrolysis device to perform electrolysis work in a case where it is determined that the polarities of the first electrode and the second electrode change.

7. The control device of claim 6, wherein The control module is specifically configured to: determine a target working mode of the water heater and a setting rule corresponding to the target working mode, wherein the first working mode comprises a plurality of target working modes, and at least two target working modes correspond to different setting rules; control polarities of the first electrode and the second electrode of the electrolysis device to be alternately changed according to the corresponding setting rule.

8. The control device of claim 6, wherein The acquisition module is further configured to acquire a water flow parameter in the water inlet pipe detected by the detection device; and the control module is further configured to control electrolysis power of the electrolysis device according to the water flow parameter.

9. The control device of claim 6, wherein The control module is further configured to, in a case where it is determined that the water heater is in a second working mode, control the electrolysis device to remain in a stop state, wherein the working mode comprises the second working mode, and the second working mode indicates that the electrolysis device does not need to work.

10. The control device according to any one of claims 6-9, characterized by The control module is further configured to: determine a heating type of the working mode of the water heater, the heating type comprising a first type and a second type; in a case where the heating type is the first type, control the heat exchanger to start working; in a case where the heating type is the second type, control the heat exchanger to remain in a stop state.

11. A water heater, characterized by A processor and a memory are comprised, the processor is configured to execute a control program of a water heater stored in the memory, so as to realize the control method of the water heater in any one of claims 1 to 5.

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