Control method and control device of a water heater

Abstract

This application relates to a control method and control device for a water heater. The control method includes, during the operation of the shock bath, acquiring a first water supply flow rate; if the acquired first water supply flow rate is not greater than the ignition water flow rate, then pausing the shock bath; after pausing the shock bath, acquiring a second water supply flow rate; if the acquired second water supply flow rate is greater than the ignition water flow rate, then shutting off the shock bath. The water heater control method provided by the embodiments of this application can prevent the water heater from repeatedly igniting when the water supply flow rate is insufficient.

Description

Technical Field

[0001] This application relates to the technical field of water heater control, and in particular to a water heater control method and control device. Background Technology

[0002] Currently, water heaters regulate water flow by controlling the water pump and valves when performing the shock bath function. Because activating the shock bath function causes fluctuations in the water flow, the ignition device starts when the supply water flow exceeds the ignition water flow, and shuts off when the supply water flow is less than the ignition water flow. This results in repeated ignition of the water heater, affecting its normal operation. Summary of the Invention

[0003] This application addresses the shortcomings of existing methods by providing a water heater control method and control device to solve the technical problem of repeated ignition of the water heater when the shock bath is turned on.

[0004] In a first aspect, embodiments of this application provide a control method for a water heater, the method being applied to a water heater with an impact bath function, the control method comprising: during the operation of the impact bath, acquiring a first water supply flow rate; if the acquired first water supply flow rate is not greater than the ignition water flow rate, then pausing the impact bath; after pausing the impact bath, acquiring a second water supply flow rate; if the acquired second water supply flow rate is greater than the ignition water flow rate, then turning off the impact bath.

[0005] As an optional implementation, the control method for the water heater further includes: if the obtained second water supply flow rate is not greater than the ignition water flow rate, keeping the shock bath in a paused state until the obtained second water supply flow rate is greater than the ignition water flow rate, then starting the shock bath and repeating the step of obtaining the first water supply flow rate during the shock bath process.

[0006] As an optional implementation, the control method for the water heater further includes: maintaining the shock bath if the obtained first water supply flow rate is greater than the ignition water flow rate.

[0007] As an optional implementation, the water heater includes a water valve and a water pump for implementing the shock bath function. Maintaining the shock bath if the first water supply flow rate is greater than the ignition water flow rate includes: if, during a preset first time period when the water valve is closed and the water pump is closed, the first water supply flow rate is greater than the ignition water flow rate, then after the preset first time period ends, the water valve is opened and the water pump is turned on, entering the shock bath pressurization stage; if, during a preset second time period when the water valve is open and the water pump is turned on, the first water supply flow rate is greater than the ignition water flow rate, then after the preset second time period ends, the water pump is turned off, and the step of closing the water valve is repeated, entering the shock bath depressurization stage.

[0008] As an optional implementation, the water heater includes a water valve and a water pump for implementing the shock bath function. During the shock bath operation, a first water supply flow rate is acquired. If the acquired first water supply flow rate is not greater than the ignition water flow rate, the shock bath is paused. This includes: if, during a preset first time period when the water valve is closed and the water pump is closed, the acquired first water supply flow rate is not greater than the ignition water flow rate, then the water pump is turned off, the water valve is opened, and the shock bath is paused; if, during a preset second time period when the water valve is open and the water pump is on, the acquired first water supply flow rate is not greater than the ignition water flow rate, then the water pump is turned off, the water valve is opened, and the shock bath is paused.

[0009] Secondly, this application provides a control device for a water heater. The control device is applied to a water heater with an impact bath function. The control device includes: a pause impact bath module, used to acquire a first water supply flow rate during the impact bath operation, and pause the impact bath if the acquired first water supply flow rate is not greater than the ignition water flow rate; and a shut-off impact bath module, used to acquire a second water supply flow rate after pausing the impact bath, and shut off the impact bath if the acquired second water supply flow rate is greater than the ignition water flow rate.

[0010] As an optional implementation, the control device of the water heater further includes: a repeating module, used to keep the shock bath in a paused state if the obtained second water supply flow rate is not greater than the ignition water flow rate, until the obtained second water supply flow rate is greater than the ignition water flow rate, then start the shock bath and repeat the step of obtaining the first water supply flow rate during the shock bath process.

[0011] As an optional implementation, the control device of the water heater further includes: a shock bath maintenance module, used to maintain the shock bath if the obtained first water supply flow rate is greater than the ignition water flow rate.

[0012] As an optional implementation, the water heater includes a water valve and a water pump for implementing the shock bath function. The shock bath maintenance module is specifically configured to: if the first water supply flow rate is greater than the ignition water flow rate during a preset first time period when the water valve is closed and the water pump is closed, then after the preset first time period ends, open the water valve and start the water pump to enter the shock bath pressurization stage; if the first water supply flow rate is greater than the ignition water flow rate during a preset second time period when the water valve is open and the water pump is started, then after the preset second time period ends, turn off the water pump and repeat the step of closing the water valve to enter the shock bath depressurization stage.

[0013] As an optional implementation, the water heater includes a water valve and a water pump for implementing the shock bath function. The shock bath pause module is specifically configured to: if the first water supply flow rate obtained during a preset first time period when the water valve is closed and the water pump is closed is not greater than the ignition water flow rate, then turn off the water pump, open the water valve, and pause the shock bath; if the first water supply flow rate obtained during a preset second time period when the water valve is open and the water pump is on is not greater than the ignition water flow rate, then turn off the water pump, open the water valve, and pause the shock bath.

[0014] This application provides a control method and control device for a water heater. The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0015] If the water supply flow is not suitable for the impact bath, and it is determined that the opening and closing of the water valve and water pump reduces the impact bath effect, then the impact bath should be turned off to avoid repeated ignition caused by insufficient water supply flow after restarting the impact bath and ignition, so as to keep the water heater in normal working mode.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a water heater with an impact bath function provided in an embodiment of this application;

[0019] Figure 2A schematic diagram of the structure of a water heater with shock bath function provided in this application embodiment when the water valve is in the open state;

[0020] Figure 3 A schematic diagram of the structure of a water heater with a shock bath function provided in this application embodiment when the water valve is in the closed state;

[0021] Figure 4 A schematic flowchart illustrating the control method for a water heater provided in an embodiment of this application;

[0022] Figure 5 The control method for a water heater provided in this application includes a flowchart illustrating the process of obtaining the first water supply flow rate during the shock bath if the obtained second water supply flow rate is not greater than the ignition water flow rate, until the obtained second water supply flow rate is greater than the ignition water flow rate, at which point the shock bath is activated and the process of obtaining the first water supply flow rate during the shock bath is repeated.

[0023] Figure 6 A schematic diagram illustrating the change in the impact bath water flow in the water heater control method provided in this application embodiment;

[0024] Figure 7 This is a schematic diagram of the module structure of the control device for a water heater provided in an embodiment of this application.

[0025] Figure labels and corresponding explanations:

[0026] 1: Water heater body;

[0027] 2: Control Panel;

[0028] 3: Water inlet pipe;

[0029] 4: Water valve; 41: Valve seat; 411: Valve seat wall; 412: Inner cavity; 42: Solenoid valve; 421: Valve body; 422: Valve cavity; 423: Valve core; 43: Limiting part;

[0030] 5: Water pump;

[0031] 6: Controller;

[0032] 7: Water flow sensor;

[0033] 10: Pause the shock bath module;

[0034] 20: Turn off the shock bath module;

[0035] 30: Duplicate modules;

[0036] 40: Maintain the shock bath module. Detailed Implementation

[0037] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0038] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0039] Those skilled in the art will understand that, unless otherwise stated, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this application’s specification means the presence of the stated features, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0040] This application provides a control method for a water heater, which is applied to a water heater with an impact bath function. The structure of the water heater is as follows: Figure 1 As shown, the water heater mainly includes the water heater body 1, ignition device (not shown in the figure), control panel 2, inlet pipe 3, water valve 4, water pump 5, controller 6, and water flow sensor 7. The water heater body 1 is the main body that outputs hot water after gas combustion and heat exchange. At least part of the inlet pipe 3 is located inside the water heater body 1, allowing water to be heated inside the body and then output outside. The control panel 2 is located on the outside of the water heater body 1. The control panel 2 includes buttons for turning the water on and off, buttons for controlling the start and stop of the shock bath, and buttons for inputting preset outlet water temperature, facilitating users to switch the functions and states of the gas water heater. A water flow sensor 7 is installed on the inlet pipe 3 to obtain the water supply flow rate. The ignition device starts ignition when the water supply flow rate obtained by the water flow sensor is greater than the ignition water volume, to heat the incoming water; conversely, it shuts off ignition when the water supply flow rate obtained by the water flow sensor is less than the ignition water volume. The water pump 5 and water valve 4 are also installed on the inlet pipe 3.

[0041] Optionally, the ignition water flow rate can be a preset fixed value, or it can vary according to the parameter data obtained from various components of the water heater.

[0042] Optionally, the ignition water flow rate shall be not less than 2 liters per minute and not more than 2.5 liters per minute.

[0043] like Figure 2-3 As shown, the water valve 4 includes a valve seat 41 and a solenoid valve 42. The valve seat 41 includes a valve seat wall 411 and an inner cavity 412 enclosed by the valve seat wall 411; the solenoid valve 42 includes a valve body 421, a valve cavity 422 enclosed by the valve body 421, and a valve core 423 that can move up and down in the valve cavity 422 and is disposed in the valve body 421; the valve seat wall 411 is fixed to the lower part of the valve body 421, and a water flow hole is provided on the upper part of the valve seat wall 411 for water to flow through, so as to connect the inner cavity 412 and the valve cavity 422. A limiting part 43 is provided on one side of the water flow hole, and the valve core 423 moves between the upper part of the valve cavity 422 and the limiting part 43 to adjust the water flow rate through the water flow hole. When energized, the valve core 423 of the solenoid valve 42 moves closer to the water flow hole, reducing the distance between the valve core 423 and the water flow hole, thereby reducing the water flow through the water flow hole. When the valve core 423 of the solenoid valve 42 moves to the limiting part 43 in the direction closer to the water flow hole, the distance between the valve core 423 and the water flow hole is the shortest (the shortest distance is greater than 0), and the water flow through the water flow hole is the least. When de-energized, the valve core 423 of the solenoid valve 42 moves away from the water flow hole, and the water flow through the water flow hole increases compared to the water flow when the valve core 423 of the solenoid valve 42 is energized. That is, when de-energized, the water valve 4 is in the open state, and the water flow is larger; when energized, the water valve 4 is in the closed state, and the water flow is smaller compared to the open state.

[0044] like Figure 4 As shown, the water heater control method provided in this application embodiment includes steps S1-S2:

[0045] Step S1: During the operation of the impact bath, obtain the first water supply flow rate. If the obtained first water supply flow rate is not greater than the ignition water flow rate, then pause the impact bath.

[0046] Optionally, during the operation of the shock bath, a first water supply is obtained at a preset first acquisition cycle. If the first water supply flow rate is not greater than the ignition water flow rate, it indicates that the water supply flow rate is insufficient, i.e., the water pressure is insufficient. This will result in a small change in the water pressure of the shock bath, which reduces the user's experience of using the shock bath. In this case, the shock bath needs to be paused.

[0047] Step S2: After pausing the impact bath, obtain the second water supply flow rate. If the obtained second water supply flow rate is greater than the ignition water flow rate, then shut down the impact bath.

[0048] Optionally, the difference between pausing and shutting down the shock bath lies in the fact that water supply flow is still acquired even when the shock bath is paused. If the second water supply flow obtained after pausing the shock bath is greater than the ignition water flow, it indicates that the water flow of the external water supply system connected to the water heater's inlet pipe 3 is greater than the ignition water flow. This is because the opening and closing of the water valve 4 and water pump 5 reduces the shock bath effect. Although the water supply flow is greater than the ignition water flow at this time, it is no longer suitable for shock bathing, and the shock bath needs to be shut down. A low water pressure signal can also be output to provide a low water pressure warning. If the shock bath is not shut down but instead started, the ignition device will be activated simultaneously. During the shock bath's operation, the first water supply flow obtained will still not be greater than the ignition water flow, and the ignition device will be shut down. After pausing the shock bath, the second water supply flow obtained will still be greater than the ignition water flow, causing the shock bath to be started again and the ignition device to be turned on again, repeating this cycle continuously. This will prevent the water heater from working properly.

[0049] The water heater control method provided in this application embodiment, when the water supply flow is not suitable for the impact bath, if it is determined that the opening and closing actions of the water valve 4 and the water pump 5 have reduced the impact bath effect, then the impact bath is turned off to avoid repeated ignition caused by insufficient water supply flow after restarting the impact bath and ignition, so that the water heater is in normal working mode. Optionally, the first water supply volume and the second water supply flow are the same.

[0050] like Figure 5 As shown, as an optional implementation, the water heater control method further includes step S3:

[0051] Step S3: If the obtained second water supply flow rate is not greater than the ignition water flow rate, keep the shock bath in a paused state until the obtained second water supply flow rate is greater than the ignition water flow rate, then start the shock bath and repeat the step of obtaining the first water supply flow rate during the shock bath process.

[0052] If the obtained second water supply flow rate is not greater than the ignition water flow rate, it indicates that the water pressure provided by the external water supply system connected to the water inlet pipe 3 of the water heater is insufficient. In this case, the ignition device is turned off, and the second water supply flow rate is obtained at the preset second acquisition cycle. Under the condition that the user has not turned off the shock bath function, until the obtained second water supply flow rate is greater than the ignition water flow rate, it indicates that the water pressure provided by the external water supply system connected to the water inlet pipe 3 of the water heater is sufficient. Then the shock bath is turned on, and the shock bath working process begins.

[0053] Optionally, the first acquisition cycle is the same as the second acquisition cycle.

[0054] As an alternative implementation, the water heater control method further includes the step of: maintaining the shock bath if the obtained first water supply flow rate is greater than the ignition water flow rate.

[0055] If the initial water supply flow rate is greater than the ignition water flow rate, it means that the water pressure can meet the requirements of the shock bath function.

[0056] As an optional implementation, the water heater includes a water valve 4 and a water pump 5 for implementing the shock bath function. If the first water supply flow rate obtained in the aforementioned steps is greater than the ignition water flow rate, the shock bath is maintained, including the steps of: if the first water supply flow rate obtained is greater than the ignition water flow rate during a preset first time period when the water valve 4 is closed and the water pump 5 is closed, then after the preset first time period ends, the water valve 4 is opened and the water pump 5 is turned on to enter the shock bath pressurization stage; and if the first water supply flow rate obtained is greater than the ignition water flow rate during a preset second time period when the water valve 4 is open and the water pump 5 is turned on, then after the preset second time period ends, the water pump 5 is turned off, and the step of turning off the water valve 4 is repeated to enter the shock bath depressurization stage.

[0057] Optionally, after it is initially determined that the first water supply flow rate is greater than the ignition water flow rate, the normally open water valve 4 is closed for a preset first time period to reduce the water supply flow rate and achieve pressure reduction. With the water valve 4 closed and the water pump 5 off, the first water supply flow rate is obtained in a preset first cycle. If the first water supply flow rate obtained within the preset first time period is greater than the ignition water flow rate, then after the preset first time period ends, the water valve 4 is opened and the water pump 5 is turned on to increase the water supply flow rate and enter the impact bath pressurization stage.

[0058] Optionally, when water valve 4 is open and water pump 5 is turned on, a first water supply flow rate is obtained in a preset first cycle. If the second water supply flow rate obtained in the preset first time period is greater than the ignition water flow rate, then after the preset second time period ends, water valve 4 is closed and water pump 5 is turned off to reduce the water supply flow rate and enter the shock bath pressure reduction stage.

[0059] like Figure 6 As shown, the water pressure of the shock bath is changed by alternating between the pressure reduction stage and the pressure increase stage, thereby achieving the massage function.

[0060] Optionally, the first time period and the second time period are the same.

[0061] As an optional implementation, in step S1, the water heater includes a water valve 4 and a water pump 5 for implementing the shock bath function. During the shock bath operation, a first water supply flow rate is obtained. If the obtained first water supply flow rate is not greater than the ignition water flow rate, the shock bath is paused. This includes the following steps:

[0062] If the first water supply flow rate obtained is not greater than the ignition water flow rate during the preset first time period when water valve 4 is closed and water pump 5 is closed, then water pump 5 is turned off, water valve 4 is opened, and the impact bath is suspended; if the first water supply flow rate obtained is not greater than the ignition water flow rate during the preset second time period when water valve 4 is open and water pump 5 is turned on, then water pump 5 is turned off, water valve 4 is opened, and the impact bath is suspended.

[0063] During the shock bath operation, water pump 5 cannot be turned on when water valve 4 is closed. The coordination of water valve 4 and water pump 5 is required to alternate between the shock bath pressure reduction and pressure increase phases. If the initial water supply flow rate obtained during the shock bath operation is not greater than the ignition water flow rate, it indicates insufficient water pressure. In this case, the ignition device and water pump 5 need to be turned off, and water valve 4 needs to be opened to pause the shock bath.

[0064] As an optional implementation, in the aforementioned step S1, during the operation of the shock bath, a first water supply flow rate is obtained. If the obtained first water supply flow rate is not greater than the ignition water flow rate, the control method of the water heater before pausing the shock bath further includes the step of: after receiving the shock bath start signal, obtaining a third water supply flow rate. If the obtained third water supply flow rate is not greater than the ignition water flow rate, the shock bath is started.

[0065] After the user starts the shock bath function through the control panel 2, they turn on the faucet and control the water flow sensor to obtain the third water supply flow. If the obtained third water supply flow is not greater than the ignition water flow, it means that the water pressure can meet the shock bath function. Then, the ignition device is turned on, the water valve 4 is closed, and the water pressure is reduced to start the shock bath.

[0066] Optionally, the third water supply flow rate is the same as the first water supply flow rate.

[0067] Optionally, the third water supply flow rate is the same as the second water supply flow rate.

[0068] As an optional implementation, the water heater control method further includes the step of: after pausing the shock bath, obtaining a second water supply flow rate; if the obtained second water supply flow rate is not greater than the ignition water flow rate, then maintaining the paused shock bath.

[0069] If the second water supply flow rate obtained after pausing the shock bath is not greater than the ignition water flow rate, it can be considered as the user turning off the water. In this case, the shock bath needs to be kept paused so that the shock bath can be started the next time the tap is turned on.

[0070] It should be understood that, although Figure 5 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise explicitly stated in this document, there is no strict order in which these steps are executed; they can be performed in other orders. Furthermore, Figure 5 At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0071] It is understood that the same / similar parts between the various embodiments of the methods described above in this specification can be referred to each other. Each embodiment focuses on the differences from other embodiments, and relevant parts can be referred to the description of other method embodiments.

[0072] Based on the same inventive concept, such as Figure 7 As shown in the figure, this application embodiment provides a control device for a water heater. The control device is applied to a water heater with an impact bath function. The control device includes an impact bath pause module 10 and an impact bath shut-off module 20. The impact bath pause module 10 is used to acquire a first water supply flow rate during the impact bath operation. If the acquired first water supply flow rate is not greater than the ignition water flow rate, the impact bath is paused. The impact bath shut-off module 20 is used to acquire a second water supply flow rate after the impact bath is paused. If the acquired second water supply flow rate is greater than the ignition water flow rate, the impact bath is shut off.

[0073] As an optional implementation, the control device of the water heater further includes a repeating module 30, which is used to keep the shock bath in a paused state if the obtained second water supply flow rate is not greater than the ignition water flow rate, until the obtained second water supply flow rate is greater than the ignition water flow rate, then start the shock bath and repeat the step of obtaining the first water supply flow rate during the shock bath process.

[0074] As an alternative implementation, the control device of the water heater further includes a shock bath holding module 40, which holds the shock bath if the obtained first water supply flow rate is greater than the ignition water flow rate.

[0075] As an optional implementation, the water heater includes a water valve 4 and a water pump 5 for realizing the shock bath function. The shock bath module 40 is specifically configured to: if the first water supply flow rate obtained during a preset first time period when the water valve 4 is closed and the water pump 5 is closed is greater than the ignition water flow rate, then after the preset first time period ends, open the water valve 4 and start the water pump 5 to enter the shock bath pressurization stage; if the first water supply flow rate obtained during a preset second time period when the water valve 4 is open and the water pump 5 is started is greater than the ignition water flow rate, then after the preset second time period ends, turn off the water pump 5 and repeat the step of closing the water valve 4 to enter the shock bath depressurization stage.

[0076] As an optional implementation, the water heater includes a water valve 4 and a water pump 5 for implementing the shock bath function. The shock bath pause module 10 is specifically used to: if the first water supply flow rate obtained during a preset first time period when the water valve 4 is closed and the water pump 5 is closed is not greater than the ignition water flow rate, then the water pump 5 is turned off, the water valve 4 is opened, and the shock bath is paused; if the first water supply flow rate obtained during a preset second time period when the water valve 4 is open and the water pump 5 is on is not greater than the ignition water flow rate, then the water pump 5 is turned off, the water valve 4 is opened, and the shock bath is paused.

[0077] As an optional implementation, the control device of the water heater also includes an activation shock bath module, which is used to obtain a third water supply flow rate after receiving a shock bath activation signal. If the obtained third water supply flow rate is not greater than the ignition water flow rate, the shock bath is activated.

[0078] As an optional implementation, the control device of the water heater also includes a paused shock bath module, which is used to obtain a second water supply flow rate after the paused shock bath, and if the obtained second water supply flow rate is not greater than the ignition water flow rate, the paused shock bath is maintained.

[0079] The control device for the water heater provided in this application embodiment can shut off the shock bath if the opening and closing actions of the water valve 4 and the water pump 5 reduce the shock bath effect when the water supply flow is not suitable for shock bathing. This avoids repeated ignition caused by insufficient water supply flow after restarting the shock bath and ignition, thus ensuring that the water heater is in normal working mode. Optionally, the first water supply volume and the second water supply flow are the same.

[0080] Specific limitations regarding the control device of the water heater can be found in the limitations on the control method of the water heater mentioned above, and will not be repeated here. Each module in the control device of the aforementioned water heater can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for controlling a water heater, characterized in that, The water heater includes a water valve (4) and a water pump (5) for realizing the shock bath function. The method is applied to a water heater with the shock bath function, and the control method of the water heater includes: During the operation of the impact bath, the first water supply flow rate is obtained. If the obtained first water supply flow rate is not greater than the ignition water flow rate, the impact bath is paused. After pausing the impact bath, obtain the second water supply flow rate. If the obtained second water supply flow rate is greater than the ignition water flow rate, then shut down the impact bath. During the operation of the impact bath, a first water supply flow rate is obtained. If the obtained first water supply flow rate is not greater than the ignition water flow rate, the impact bath is paused, including: If the first water supply flow rate obtained during the preset first time period when the water valve (4) is closed and the water pump (5) is closed is not greater than the ignition water flow rate, then the water pump (5) is turned off, the water valve (4) is turned on, and the shock bath is paused. If the first water supply flow rate obtained during the preset second time period when the water valve (4) is open and the water pump (5) is turned on is not greater than the ignition water flow rate, then the water pump (5) is turned off, the water valve (4) is turned on, and the shock bath is paused.

2. The control method for a water heater according to claim 1, characterized in that, Also includes: If the obtained second water supply flow rate is not greater than the ignition water flow rate, the impact bath remains in a paused state until the obtained second water supply flow rate is greater than the ignition water flow rate. Then, the impact bath is turned on, and the step of obtaining the first water supply flow rate during the operation of the impact bath is repeated.

3. The control method for a water heater according to claim 1, characterized in that, Also includes: If the obtained first water supply flow rate is greater than the ignition water flow rate, then maintain the shock bath.

4. The control method for a water heater according to claim 3, characterized in that, The water heater includes a water valve (4) and a water pump (5) for implementing the shock bath function. The step of maintaining the shock bath if the obtained first water supply flow rate is greater than the ignition water flow rate includes: If the first water supply flow rate obtained during the preset first time period when the water valve (4) is closed and the water pump (5) is closed is greater than the ignition water flow rate, then after the preset first time period ends, the water valve (4) is opened and the water pump (5) is turned on to enter the impact bath pressurization stage. If the first water supply flow rate obtained during the preset second time period when the water valve (4) is open and the water pump (5) is open is greater than the ignition water flow rate, then after the preset second time period ends, the water pump (5) is turned off, and the step of turning off the water valve (4) is repeated to enter the shock bath pressure reduction stage.

5. A control device for a water heater, characterized in that, The control device is applied to a water heater with an impact bath function. The water heater includes a water valve (4) and a water pump (5) for realizing the impact bath function. The control device of the water heater includes: The pause shock bath module (10) is used to obtain the first water supply flow rate during the operation of the shock bath. If the obtained first water supply flow rate is not greater than the ignition water flow rate, the shock bath is paused. The shock bath module (20) is used to obtain the second water supply flow rate after the shock bath is paused. If the obtained second water supply flow rate is greater than the ignition water flow rate, the shock bath is shut down. The pause shock bath module (10) is specifically used for: If the first water supply flow rate obtained during the preset first time period when the water valve (4) is closed and the water pump (5) is closed is not greater than the ignition water flow rate, then the water pump (5) is turned off, the water valve (4) is turned on, and the shock bath is paused. If the first water supply flow rate obtained during the preset second time period when the water valve (4) is open and the water pump (5) is turned on is not greater than the ignition water flow rate, then the water pump (5) is turned off, the water valve (4) is turned on, and the shock bath is paused.

6. The control device for a water heater according to claim 5, characterized in that, Also includes: The repeat module (30) is used to keep the shock bath in a paused state if the obtained second water supply flow rate is not greater than the ignition water flow rate, until the obtained second water supply flow rate is greater than the ignition water flow rate, then start the shock bath and repeat the step of obtaining the first water supply flow rate during the operation of the shock bath.

7. The control device for a water heater according to claim 5, characterized in that, Also includes: The shock bath module (40) is used to maintain the shock bath if the first water supply flow rate is greater than the ignition water flow rate.

8. The control device for a water heater according to claim 7, characterized in that, The water heater includes a water valve (4) and a water pump (5) for realizing the shock bath function, and the shock bath module (40) is specifically used for: If the first water supply flow rate obtained during the preset first time period when the water valve (4) is closed and the water pump (5) is closed is greater than the ignition water flow rate, then after the preset first time period ends, the water valve (4) is opened and the water pump (5) is turned on to enter the impact bath pressurization stage. If the first water supply flow rate obtained during the preset second time period when the water valve (4) is open and the water pump (5) is open is greater than the ignition water flow rate, then after the preset second time period ends, the water pump (5) is turned off, and the step of turning off the water valve (4) is repeated to enter the shock bath pressure reduction stage.

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