Water heater and control method, system and medium thereof

Abstract

The present disclosure discloses a water heater and a control method, system and medium thereof. The water heater includes a heating component and a water volume control valve. The control method of the water heater includes detecting the water inlet temperature of the water inlet end of the water heater when the water heater is in a standby state; obtaining the target water flow corresponding to the water volume control valve based on the water inlet temperature; obtaining the target heating load corresponding to the heating component based on the target setting temperature, the water inlet temperature and the target water flow of the water heater; controlling the opening of the water volume control valve based on the target water flow, and controlling the operation of the heating component based on the target heating load. The present disclosure realizes intelligent control of the water heater. When the water heater is used again, the water inlet flow and heating load of the water heater are adjusted according to different water inlet temperatures, so that the water heater can quickly reach the target setting temperature under different water inlet temperatures, solving the problem of a sudden drop in water temperature at the shower outlet when the water heater is turned off and then on, and improving the user's water experience.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and in particular to a water heater and a control method, system and medium thereof. Background Art

[0002] When the gas water heater is turned off and then on, the heating energy cannot be instantly increased from the ignition energy to the set ignition load due to the fact that the water heater is re-ignited at the moment of boiling water. At the same time, there is a cleaning process in front of the fan before ignition. During this process, the fan rotates to discharge the exhaust gas. At this time, the water in the pipe is flowing, but it has not been ignited. These two points will cause the water temperature to drop sharply, and eventually cause the user to feel the water temperature fluctuating at the shower end, especially in winter, the practical experience is extremely poor.

[0003] Most water heater models on the market currently cannot solve the problem of a sudden drop in water temperature at the shower outlet when the water is turned off and then on again. Even models with zero cold water can only ensure that the water temperature does not drop by starting the circulation function after turning off the water. In most cases, the problem of temperature drop when turning the water off and then on again cannot be solved.

[0004] The existing solution is to solve this problem through zero cold water. On the one hand, it cannot completely solve the temperature drop problem, and on the other hand, the cost is high. At the same time, the existing solution may also bring other problems, such as energy consumption, slow initial heating, and slow hot water output from the water heater. Summary of the invention

[0005] The technical problem to be solved by the present disclosure is to overcome the problem in the prior art that the water temperature at the shower outlet corresponding to the water heater drops suddenly when the water is turned off and then on again, the water heater has high energy consumption, and the water heater has slow hot water output speed, and to provide a water heater and its control method, system and medium.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] In a first aspect, a control method for a water heater is provided, wherein the water heater comprises a heating component and a water quantity control valve; the control method comprises:

[0008] When the water heater is in a standby state, detecting the water inlet temperature of the water inlet end of the water heater;

[0009] Acquire a target water flow rate corresponding to the water flow control valve based on the water inlet temperature;

[0010] Obtaining a target heating load corresponding to the heating component based on the target set temperature of the water heater, the water inlet temperature and the target water flow rate;

[0011] The opening degree of the water quantity control valve is controlled based on the target water flow rate, and the operation of the heating component is controlled based on the target heating load.

[0012] Preferably, the step of obtaining the target water flow rate corresponding to the water flow control valve based on the water inlet temperature specifically includes:

[0013] If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time, the target water flow rate corresponding to the water control valve is obtained based on the water inlet temperature, the target setting temperature and the maximum heat load of the heating component.

[0014] Preferably, the step of obtaining the target water flow rate corresponding to the water flow control valve based on the water inlet temperature specifically includes:

[0015] If the water inlet temperature is lower than a preset temperature and the standby time of the water heater is greater than or equal to a preset time, obtaining a first water flow rate corresponding to the water volume control valve before the water heater enters the standby state;

[0016] If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

[0017] Preferably, the step of obtaining the target water flow rate corresponding to the water flow control valve based on the water inlet temperature specifically includes:

[0018] If the water inlet temperature is not lower than the preset temperature, obtaining a first water flow rate corresponding to the water flow control valve before the water heater enters the standby state;

[0019] If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

[0020] Preferably, the water heater further comprises a thermal pool component, the thermal pool component comprises a thermal pool and a heating module, and the heating module is used to heat the water stored in the thermal pool;

[0021] After the step of controlling the opening of the water flow control valve based on the target water flow rate and controlling the operation of the heating component based on the target heating load, the method further includes:

[0022] If the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be connected to the water outlet pipe of the water heater to mix the water stored in the thermal pool with the water in the water outlet pipe.

[0023] Preferably, after the step of controlling the opening of the water flow control valve based on the target water flow rate and controlling the operation of the heating component based on the target heating load, the step further includes:

[0024] If the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be disconnected from the water outlet pipeline of the water heater.

[0025] In a second aspect, a control system for a water heater is provided, wherein the water heater comprises a heating component and a water flow control valve; the control system comprises:

[0026] An inlet water temperature acquisition module, used to detect the inlet water temperature of the water inlet end of the water heater when the water heater is in a standby state;

[0027] A target water flow acquisition module, used to acquire a target water flow corresponding to the water flow control valve based on the water inlet temperature;

[0028] A target heating load acquisition module, used to acquire a target heating load corresponding to the heating component based on the target setting temperature of the water heater, the water inlet temperature and the target water flow rate;

[0029] An operation control module is used to control the opening of the water flow control valve based on the target water flow rate, and to control the operation of the heating component based on the target heating load.

[0030] Preferably, the target water flow acquisition module specifically includes:

[0031] The target water flow acquisition unit is used to acquire the target water flow corresponding to the water control valve based on the water inlet temperature, the target setting temperature and the maximum heat load of the heating component if the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time.

[0032] Preferably, the target water flow acquisition module specifically includes:

[0033] A first water volume acquisition unit, configured to acquire a first water flow rate corresponding to the water volume control valve before the water heater enters a standby state if the water inlet temperature is lower than a preset temperature and the standby time of the water heater is greater than or equal to a preset time;

[0034] The target water flow rate setting unit is used to set the first water flow rate as the target water flow rate if the first water flow rate is not less than the starting water volume of the water heater.

[0035] Preferably, the first water volume acquisition unit is further used for acquiring a first water flow rate corresponding to the water volume control valve before the water heater enters a standby state if the water inlet temperature is not lower than a preset temperature;

[0036] The target water flow setting unit is further configured to set the first water flow as the target water flow if the first water flow is not less than the starting water volume of the water heater.

[0037] Preferably, the water heater further comprises a thermal pool component, the thermal pool component comprises a thermal pool and a heating module, the heating module is used to heat the water stored in the thermal pool; the control system of the water heater further comprises:

[0038] The pipeline control module is used to control the water outlet interface of the thermal pool assembly to be connected to the water outlet pipeline of the water heater if the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, so as to mix the water stored in the thermal pool with the water in the water outlet pipeline.

[0039] The pipeline control module is also used to control the water outlet interface of the thermal pool assembly to disconnect from the water outlet pipeline of the water heater if the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load.

[0040] In a third aspect, a water heater is provided, the water heater comprising a heating component and a water volume control valve, the water heater further comprising a control system of the water heater;

[0041] The water flow control valve is arranged at the water inlet end of the water heater, and is used to adjust the water flow rate flowing into the water inlet pipeline through the water inlet end;

[0042] The heating component is used to heat the water in the water inlet pipeline.

[0043] Preferably, the water heater further comprises a thermal pool assembly;

[0044] The thermal pool assembly includes a thermal pool and a heating module. The heating module is used to heat the water stored in the thermal pool. The thermal pool assembly is arranged on the water outlet pipeline at the water outlet end of the water heater.

[0045] In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, any of the above-mentioned water heater control methods is implemented.

[0046] The positive and progressive effects of this disclosure are:

[0047] The water heater and its control method, system and medium disclosed in the present invention detect the water inlet temperature of the water inlet end of the water heater when the water heater is in standby state; obtain the target water flow rate corresponding to the water volume control valve based on the water inlet temperature; obtain the target heating load corresponding to the heating component based on the target setting temperature, water inlet temperature and target water flow rate of the water heater; control the opening of the water volume control valve based on the target water flow rate, and control the operation of the heating component based on the target heating load; realize intelligent control of the water heater, and when the water heater is used again, adjust the water inlet flow rate and heating load of the water heater according to different water inlet temperatures, so that the water heater can quickly reach the target setting temperature under different water inlet temperatures, solve the problem of sudden drop in water temperature at the shower outlet when the water is turned off and then on, and improve the user's water use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A first flow chart of a method for controlling a water heater provided in Embodiment 1 of the present disclosure;

[0049] Figure 2 A second flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0050] Figure 3 A third flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0051] Figure 4 A fourth flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0052] Figure 5 A fifth flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0053] Figure 6 A sixth flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0054] Figure 7 A seventh flow chart of the water heater control method provided in Embodiment 1 of the present disclosure;

[0055] Figure 8 A schematic diagram of the structure of a control system for a water heater provided in Embodiment 2 of the present disclosure;

[0056] Fig. 9 This is a schematic diagram of the structure of the water heater provided in Example 3 of the present disclosure. DETAILED DESCRIPTION

[0057] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0058] Example 1

[0059] This embodiment provides a control method for a water heater, the water heater comprising a heating component and a water quantity control valve; Figure 1 The first flow chart of the water heater control method provided in this embodiment is as follows: Figure 1 As shown, the control method of the water heater includes:

[0060] S101. When the water heater is in a standby state, the water inlet temperature at the water inlet end of the water heater is detected.

[0061] When the shower outlet corresponding to the water heater is in the water-off state, the water heater enters the standby state. At this time, the water inlet temperature Tj at the water inlet end of the water heater needs to be detected.

[0062] S102: Obtain a target water flow rate corresponding to the water flow control valve based on the water inlet temperature.

[0063] Different inlet water temperatures correspond to different target water flow rates, and the target water flow rate Qm corresponding to the water flow control valve is obtained according to the actual value of the inlet water temperature.

[0064] S103: Obtain a target heating load corresponding to the heating component based on the target setting temperature, water inlet temperature and target water flow rate of the water heater.

[0065] When the water heater is in use, the user will set the water temperature, and the temperature set by the user is the target set temperature Ts of the water heater.

[0066] The heating component heats the water flowing into the water inlet pipe from the water inlet end of the water heater with a certain heating load. Therefore, when calculating the target heating load corresponding to the heating component, it is necessary to comprehensively consider the target set temperature, water inlet temperature and target water flow of the water heater.

[0067] In the specific implementation of step S103, the target set temperature Ts, the water inlet temperature Tj and the target water flow rate Qm of the water heater can be substituted into the following formula to calculate the target heating load Xm corresponding to the heating component:

[0068] Xm=Qm*(Ts-Tj)*M;

[0069] Wherein, M is a constant, which can be flexibly set according to different inlet water temperatures and actual conditions.

[0070] S104: Control the opening of the water flow control valve based on the target water flow rate, and control the operation of the heating component based on the target heating load.

[0071] The water inlet flow rate can be adjusted by adjusting the opening of the water flow control valve. After obtaining the target water flow rate, the water flow control valve is controlled according to the target water flow rate so that the water inlet flow rate reaches the target water flow rate.

[0072] When the water heater is switched from the standby state to the use state, that is, when the shower outlet corresponding to the water heater is switched from the water-off state to the water-on state, the water flow rate reaches the target water flow rate by controlling the opening of the water volume control valve.

[0073] At the same time, by controlling the operation of the heating component, the heating component heats the water in the water inlet pipe at a target heating load, and then supplies hot water to the user, thereby realizing the operation control of the water heater.

[0074] The control method of the water heater in this embodiment detects the water inlet temperature of the water inlet end of the water heater when the water heater is in standby state, obtains the target water flow rate corresponding to the water volume control valve based on the water inlet temperature, obtains the target heating load corresponding to the heating component based on the target setting temperature, the water inlet temperature and the target water flow rate of the water heater, controls the opening of the water volume control valve based on the target water flow rate, and controls the operation of the heating component based on the target heating load; realizes intelligent control of the water heater, and when the water heater is used again, adjusts the water inlet flow rate and heating load of the water heater according to different water inlet temperatures, so that the water heater can quickly reach the target setting temperature under different water inlet temperatures, solves the problem of sudden drop in water temperature at the shower outlet when the water heater is turned off and then on, and improves the user's water use experience.

[0075] In an alternative embodiment, Figure 2 A second flow chart of the water heater control method provided in this embodiment is shown in FIG. Figure 2 As shown, the above step S102 specifically includes:

[0076] S1021. If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time, the target water flow rate corresponding to the water control valve is obtained based on the water inlet temperature, the target set temperature and the maximum heat load of the heating component.

[0077] If the water inlet temperature is lower than the preset temperature, it can be inferred that the current ambient temperature is low. For example, it may be winter. Due to the low ambient temperature, the water inlet temperature at the water inlet end of the water heater is also low. Users are more sensitive to temperature and will be more sensitive to the water temperature at the shower outlet corresponding to the water heater. In particular, when users need to use shower gel or do other operations, they will temporarily turn off the water, causing the water heater to enter standby mode. When the water is turned on again, if the water heater is not heated in time, the water temperature may fluctuate or drop suddenly when the user uses the water heater, causing discomfort to the user or even a cold. Therefore, it is necessary to control the operation of the water heater intelligently. Before the user turns on the water, the opening of the water volume control valve is adjusted to reduce the water flow rate of the next water turning on. Then, by increasing the heating load, the temperature drop is reduced or even eliminated, so that the cold water section is quickly heated, solving the problem of a sudden drop in water temperature when the shower outlet corresponding to the water heater is turned off and then turned on again.

[0078] During the operation of the water heater, if the inlet water temperature Tj is lower than the preset temperature and the standby time of the water heater is less than the preset time, the target water flow Qm corresponding to the water control valve is obtained according to the inlet water temperature Tj, the target set temperature Ts and the maximum heat load Xd.

[0079] The target water flow rate Qm can be calculated by referring to the following formula:

[0080] Qm=Xd / (Ts-Tj)*N;

[0081] Wherein, N is a constant, which can be set according to actual conditions.

[0082] At the same time, the target heating load Xm is calculated according to the above formula for calculating the target heating load, wherein the constant M is set according to the relationship between the inlet water temperature and the preset temperature at this time.

[0083] For example, if the preset temperature is 20 degrees, the preset time is 3 minutes, and the target setting temperature Ts is 50 degrees. When the shower outlet corresponding to the water heater is in the water-off state and the water heater is in the standby state, first determine whether the water inlet temperature Tj is lower than 20 degrees. If it is lower than 20 degrees, further determine whether the standby time S of the water heater is less than 3 minutes. If it is less than 3 minutes, the target water flow Qm corresponding to the water volume control valve is obtained by the above formula for calculating the target water flow according to the water inlet temperature Tj, the target setting temperature Ts and the maximum heat load Xd. The target heating load corresponding to the heating component is obtained by the above formula for calculating the target heating load according to the target setting temperature Ts, the water inlet temperature Tj and the target water flow Qm of the water heater. When the shower outlet corresponding to the water heater switches from the water-off state to the water-on state, the water inlet flow is controlled to reach the target water flow Qm, and the heating component is controlled to heat the water in the water inlet pipeline with the target heating load Xm, so that the water temperature at the shower outlet quickly reaches the target setting temperature, ensuring that the water temperature at the shower outlet does not drop suddenly or fluctuate. In a specific example, the target set temperature is 50° C. The method provided in this embodiment can quickly make the temperature of the water reach about 50° C., for example, fluctuate between 48° C. and 52° C. The temperature values ​​in this embodiment are only exemplary and should not limit the scope of protection of this disclosure.

[0084] The control method of the water heater in this embodiment, if the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time, obtains the maximum heat load of the heating component, and obtains the target water flow corresponding to the water control valve based on the water inlet temperature, the target setting temperature and the maximum heat load; obtains the target heating load corresponding to the heating component based on the target setting temperature, the water inlet temperature and the target water flow of the water heater; realizes intelligent control of the water heater, and when the water heater is used again, adjusts the water inlet flow and heating load of the water heater according to the corresponding water inlet temperature, so that the water heater can quickly reach the target setting temperature when the water temperature at the water inlet end is low and the water shut-off time is short, solves the problem of a sudden drop in water temperature at the shower outlet when the water heater is turned off and then on, and improves the user's water experience.

[0085] In an optional embodiment, if Figure 3 As shown, the above step S102 specifically includes:

[0086] S1022: If the water inlet temperature is lower than a preset temperature and the standby time of the water heater is greater than or equal to the preset time, obtain a first water flow rate corresponding to the water volume control valve before the water heater enters the standby state.

[0087] S1023: If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

[0088] When the water flow rate of the water heater is less than the starting water volume, the water heater will not start heating. Only when the water flow rate of the water heater reaches or exceeds the starting water volume, the water heater will ignite and start. The starting water volumes of different water heaters can be the same or different. In a specific example, the starting water volume of the water heater is 2.5 liters / minute.

[0089] If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is greater than or equal to the preset time, it can be inferred that the user did not turn off the water temporarily, and the shower outlet corresponding to the water heater is in the water-off state for a long time. At this time, it can be inferred that the user does not need to use the water heater in a short time, so the first water flow Q1 corresponding to the water volume control valve before the water heater enters the standby state is obtained. If the first water flow Q1 is not less than the starting water volume Q0 of the water heater, the first water flow Q1 is set to the target water flow Qm, that is, Qm=Q1.

[0090] At the same time, the target heating load Xm is calculated according to the above formula for calculating the target heating load, wherein the constant M is set according to the relationship between the inlet water temperature and the preset temperature at this time.

[0091] The first water flow rate corresponding to the water volume control valve before the water heater enters the standby state is set as the target water flow rate Qm corresponding to the water volume control valve when the water is turned on next time, and the target heating load corresponding to the heating component is obtained by the above formula for calculating the target heating load according to the target setting temperature Ts, the water inlet temperature Tj and the target water flow rate Qm of the water heater. When the shower outlet corresponding to the water heater switches from the water-off state to the water-on state, the water inlet flow rate is controlled to reach the target water flow rate Qm, and the heating component is controlled to heat the water in the water inlet pipeline with the target heating load Xm, and the opening of the water volume control valve is maintained at the state before the water heater enters the standby state, which can reduce the operating energy consumption of the water heater and save more energy for users.

[0092] The control method of the water heater in this embodiment realizes the intelligent control of the water heater. When the water heater is used again, the water inlet flow rate and the heating load of the water heater are adjusted according to the corresponding water inlet temperature, so that the water heater can quickly reach the target set temperature even when the water temperature at the water inlet end is low and the water is turned off for a long time. This solves the problem of a sudden drop in water temperature at the shower outlet when the water is turned off and then on again, and at the same time reduces the operating energy consumption of the water heater and improves the user's water use experience.

[0093] In an optional embodiment, if Figure 4 As shown, the above step S102 specifically includes:

[0094] S1024: If the water inlet temperature is not lower than the preset temperature, obtain a first water flow rate corresponding to the water volume control valve before the water heater enters the standby state.

[0095] S1025: If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

[0096] If the water inlet temperature is not lower than the preset temperature, it can be inferred that the current ambient temperature is high. For example, it may be summer. Due to the high ambient temperature, the water inlet temperature of the water heater is also high. The user is less sensitive to the water temperature of the shower outlet corresponding to the water heater. At this time, even if the water is turned off and then turned on, the temperature drop of the shower outlet will be very small after being buffered by the pipeline and room temperature. At the same time, due to the high ambient temperature, the human body is even less sensitive, and there is no obvious discomfort even if the temperature drops significantly. Therefore, it is necessary to adjust the operation method of the water heater.

[0097] During the operation of the water heater, when the water inlet temperature is not lower than the preset temperature, the first water flow Q1 corresponding to the water control valve before the water heater enters the standby state is obtained. If the first water flow Q1 is not less than the starting water volume Q0 of the water heater, the first water flow Q1 is set to the target water flow Qm, that is, Qm=Q1.

[0098] At the same time, the target heating load Xm is calculated according to the above formula for calculating the target heating load, wherein the constant M is set according to the relationship between the inlet water temperature and the preset temperature at this time.

[0099] The first water flow rate corresponding to the water volume control valve before the water heater enters the standby state is set as the target water flow rate Qm corresponding to the water volume control valve when the water is turned on next time, and the target heating load corresponding to the heating component is obtained by the above formula for calculating the target heating load according to the target setting temperature Ts, the water inlet temperature Tj and the target water flow rate Qm of the water heater. When the shower outlet corresponding to the water heater switches from the water-off state to the water-on state, the water inlet flow rate is controlled to reach the target water flow rate Qm, and the heating component is controlled to heat the water in the water inlet pipeline with the target heating load Xm, and the opening of the water volume control valve is maintained at the state before the water heater enters the standby state, so that the cold water section is quickly heated, and at the same time, the operating energy consumption of the water heater can be reduced, saving more energy for users.

[0100] The control method of the water heater in this embodiment realizes the intelligent control of the water heater. When the water heater is used again, the water inlet flow rate and the heating load of the water heater are adjusted according to the corresponding water inlet temperature, so that the water heater can quickly reach the target set temperature even when the water temperature at the water inlet end is high, thereby solving the problem of the sudden drop in water temperature at the shower outlet when the water is turned off and then on again. At the same time, it reduces the operating energy consumption of the water heater and improves the user's water use experience.

[0101] In an optional embodiment, the water heater further comprises a thermal pool component, the thermal pool component comprises a thermal pool and a heating module, and the heating module is used to heat the water stored in the thermal pool. Figure 5 As shown, after the above step S104, the following steps are also included:

[0102] S105. If the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be connected to the water outlet pipeline of the water heater to mix the water stored in the thermal pool with the water in the water outlet pipeline.

[0103] If the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, that is, the target water flow rate is too small to meet the starting water volume requirement of the water heater, or the target heating load is too large to exceed the maximum heating load of the heating component itself, then only controlling the water flow control valve and the heating component cannot achieve the problem of adjusting the temperature drop of the shower outlet, so it is necessary to use the thermal pool component to adjust the water temperature.

[0104] The thermal pool assembly includes a thermal pool and a heating module. The heating module is used to heat the water stored in the thermal pool. The thermal pool can also be called a water storage tank or an expansion tank, which is used to store hot water heated by the heating module. The water outlet interface of the thermal pool assembly is connected to the water outlet pipeline of the water heater, and the water stored in the thermal pool is mixed with the water in the water outlet pipeline to further reduce the temperature drop.

[0105] The control method of the water heater in this embodiment realizes intelligent control of the water heater by connecting the water outlet interface of the thermal pool component with the water outlet pipe of the water heater, mixing the water stored in the thermal pool with the water in the water outlet pipe, and when the problem of adjusting the temperature drop of the shower outlet cannot be achieved by controlling the water volume control valve and the heating component, the water temperature is adjusted with the help of the thermal pool component, which further solves the problem of the sudden drop of water temperature at the shower outlet when the water is turned off and then on, thereby improving the user's water use experience.

[0106] In an optional embodiment, if Figure 6 As shown, after the above step S104, the following steps are also included:

[0107] S106: If the target water flow is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be disconnected from the water outlet pipeline of the water heater.

[0108] If the target water flow rate is greater than or equal to the starting water volume of the water heater, it indicates that the water heater can be ignited and started normally, and the water flowing into the water inlet pipe from the water inlet end of the water heater can be heated; if the target heating load is less than or equal to the maximum heat load, it indicates that the target heating load is within the heating load range that the heating component can provide, and the heating component can work normally. At this time, the problem of adjusting the temperature drop of the shower outlet can be achieved by controlling the water volume control valve and the heating component. Therefore, there is no need to use the thermal pool component to adjust the water temperature. Therefore, it is sufficient to disconnect the water outlet interface of the thermal pool component from the water outlet pipe of the water heater.

[0109] The control method of the water heater in this embodiment controls the water outlet interface of the thermal pool component to be disconnected from the water outlet pipeline of the water heater if the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load; the intelligent control of the water heater is realized, the problem of the sudden drop in water temperature at the shower outlet when the water is turned off and then on again is solved, the hot water outlet speed of the water heater is increased, and the user experience is improved.

[0110] The control method of the water heater disclosed in the present invention is further discussed below through specific examples. Figure 7 This is a seventh flow chart of the water heater control method provided in this embodiment.

[0111] like Figure 7 As shown, the control method of the water heater includes:

[0112] S201. When the water heater is in a water-off standby state, the water inlet temperature at the water inlet end of the water heater is detected.

[0113] S202: Determine whether the water inlet temperature is lower than a preset temperature.

[0114] If yes, execute step S203; if no, execute steps S204, S205 and S206 in sequence.

[0115] S203: Determine whether the standby time of the water heater is less than a preset time.

[0116] If yes, then execute steps S207 and S208 in sequence; if no, then execute steps S204, S205 and S206 in sequence.

[0117] S204: Obtain a first water flow rate corresponding to the water flow control valve before the water heater enters the standby state.

[0118] S205: If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

[0119] S206: Obtain a target heating load corresponding to the heating component based on the target set temperature, water inlet temperature and target water flow rate of the water heater.

[0120] S207: Obtain a target water flow rate corresponding to the water flow control valve based on the water inlet temperature, the target set temperature and the maximum heat load of the heating component.

[0121] S208. Obtain a target heating load corresponding to the heating component based on the target set temperature, water inlet temperature and target water flow rate of the water heater.

[0122] S209: Determine whether the target water flow rate is less than the starting water volume of the water heater or whether the target heating load is greater than the maximum heating load.

[0123] If yes, execute step S210, if no, execute step S211.

[0124] S210, controlling the water outlet interface of the thermal pool assembly to be connected to the water outlet pipeline of the water heater to mix the water stored in the thermal pool with the water in the water outlet pipeline.

[0125] S211, controlling the water outlet interface of the thermal pool assembly to be disconnected from the water outlet pipeline of the water heater.

[0126] When the water heater is in the water-off standby state, the water inlet temperature at the water inlet end of the water heater is detected. If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time, the target water flow rate corresponding to the water volume control valve is obtained according to the water inlet temperature, the target setting temperature and the maximum heat load of the heating component. The target heating load corresponding to the heating component is obtained according to the target setting temperature, the water inlet temperature and the target water flow rate of the water heater. At the same time, it is determined whether the target water flow rate is less than the starting water flow rate of the water heater or whether the target heating load is greater than the maximum heat load. If the target water flow rate is less than the starting water flow rate of the water heater or the target heating load is greater than the maximum heat load, the water outlet interface of the thermal pool component is controlled to be connected to the water outlet pipeline of the water heater to mix the water stored in the thermal pool with the water in the water outlet pipeline. If the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load, the water outlet interface of the thermal pool component is controlled to be disconnected from the water outlet pipeline of the water heater. Among them, the target water flow rate and the target heating load are obtained by referring to the corresponding calculation formulas above.

[0127] If the water inlet temperature is lower than the preset temperature and the standby time is not less than the preset time, the first water flow rate corresponding to the water control valve before the water heater enters the standby state is obtained. If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set to the target water flow rate, and the target heating load corresponding to the heating component is obtained according to the target set temperature, water inlet temperature and target water flow rate of the water heater.

[0128] If the water inlet temperature is not lower than the preset temperature, the first water flow rate corresponding to the water control valve before the water heater enters the standby state is obtained. If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set to the target water flow rate, and the target heating load corresponding to the heating component is obtained according to the target setting temperature, water inlet temperature and target water flow rate of the water heater.

[0129] Among them, the preset temperature and preset time can be flexibly set according to actual usage requirements.

[0130] Example 2

[0131] This embodiment provides a control system for a water heater, the water heater comprising a heating component and a water volume control valve; Figure 8 The schematic diagram of the control system of the water heater provided in this embodiment is as follows: Figure 8As shown, the control system of the water heater includes a water inlet temperature acquisition module 1, which is used to detect the water inlet temperature of the water inlet end of the water heater when the water heater is in standby state; a target water flow acquisition module 2, which is used to acquire the target water flow corresponding to the water control valve based on the water inlet temperature; a target heating load acquisition module 3, which is used to acquire the target heating load corresponding to the heating component based on the target set temperature, water inlet temperature and target water flow of the water heater; an operation control module 4, which is used to control the opening of the water control valve based on the target water flow, and control the operation of the heating component based on the target heating load.

[0132] In an optional embodiment, the target water flow acquisition module 2 specifically includes a target water flow acquisition unit 21, which is used to obtain the target water flow corresponding to the water control valve based on the inlet water temperature, the target setting temperature and the maximum heat load of the heating component if the inlet water temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time.

[0133] In an optional embodiment, the target water flow acquisition module 2 specifically includes a first water flow acquisition unit 22, which is used to obtain the first water flow corresponding to the water control valve before the water heater enters the standby state if the water inlet temperature is lower than the preset temperature and the standby time of the water heater is greater than or equal to the preset time; a target water flow setting unit 23, which is used to set the first water flow as the target water flow if the first water flow is not less than the starting water volume of the water heater.

[0134] In an optional embodiment, the first water volume acquisition unit 22 is also used to obtain the first water flow rate corresponding to the water volume control valve before the water heater enters the standby state if the water inlet temperature is not lower than the preset temperature; the target water flow rate setting unit 23 is also used to set the first water flow rate to the target water flow rate if the first water flow rate is not less than the starting water volume of the water heater.

[0135] In an optional embodiment, the water heater also includes a thermal pool assembly, which includes a thermal pool and a heating module, and the heating module is used to heat the water stored in the thermal pool; the control system of the water heater also includes a pipeline control module 5, which is used to control the water outlet interface of the thermal pool assembly to be connected to the water outlet pipeline of the water heater if the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, so as to mix the water stored in the thermal pool with the water in the water outlet pipeline.

[0136] In an optional embodiment, the pipeline control module 5 is also used to control the water outlet interface of the thermal pool assembly to disconnect from the water outlet pipeline of the water heater if the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load.

[0137] The working principle of the control system of the water heater in this embodiment is the same as the working principle of the control method of the water heater in Embodiment 1, which will not be described in detail here.

[0138] The control system of the water heater in this embodiment realizes intelligent control of the water heater through the mutual cooperation between various modules and units. When the water heater is used again, the water inlet flow and heating load of the water heater are adjusted according to different water inlet temperatures, so that the water heater can quickly reach the target set temperature under different water inlet temperatures, solving the problem of sudden drop in water temperature at the shower outlet when the water is turned off and then on, thereby improving the user's water use experience.

[0139] Example 3

[0140] This embodiment provides a water heater. Fig. 9 The schematic diagram of the structure of the water heater provided in this embodiment is as follows: Fig. 9 As shown, the water heater includes a heating component 301 and a water volume control valve 302, and the water heater also includes the control system of the water heater in Example 2;

[0141] The water flow control valve 302 is arranged at the water inlet end of the water heater, and is used to adjust the water flow rate flowing into the water inlet pipe through the water inlet end; the heating component 301 is used to heat the water in the water inlet pipe.

[0142] In an optional embodiment, the water heater further includes a thermal pool assembly 303; the thermal pool assembly 303 includes a thermal pool and a heating module, the heating module is used to heat the water stored in the thermal pool, and the thermal pool assembly 303 is arranged on the water outlet pipe at the water outlet end of the water heater.

[0143] In an optional embodiment, the water heater further includes a fan 304, which is used to exhaust waste gas generated during the operation of the heating component.

[0144] Fig. 9 The water heater shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0145] The water heater in this embodiment relies on the control system of the water heater in Example 2. The operation of each device in the water heater is controlled by the control system of the water heater, thereby realizing intelligent control of the water heater. When the water heater is used again, the water inlet flow rate and heating load of the water heater are adjusted according to different inlet water temperatures, so that the water heater can quickly reach the target set temperature under different inlet water temperatures, solving the problem of sudden drop in water temperature at the shower outlet when the water is turned off and then on, thereby improving the user's water use experience.

[0146] Example 4

[0147] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the control method of the water heater in the above-mentioned embodiment 1 is implemented.

[0148] The readable storage medium may include but is not limited to: a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device or any suitable combination of the above.

[0149] In a possible implementation, the present disclosure may also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps in the control method for the water heater in the above-mentioned embodiment 1.

[0150] Among them, the program code for executing the present disclosure can be written in any combination of one or more programming languages, and the program code can be executed completely on the user device, partially on the user device, as a separate software package, partially on the user device and partially on a remote device, or completely on the remote device.

[0151] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A method for controlling a water heater, characterized in that: The water heater comprises a heating component and a water volume control valve; the control method comprises: When the water heater is in a standby state, detecting the water inlet temperature of the water inlet end of the water heater; Acquire a target water flow rate corresponding to the water flow control valve based on the water inlet temperature; Obtaining a target heating load corresponding to the heating component based on the target setting temperature of the water heater, the water inlet temperature and the target water flow rate; controlling the opening of the water flow control valve based on the target water flow rate, and controlling the operation of the heating component based on the target heating load; The step of obtaining the target water flow rate corresponding to the water flow control valve based on the water inlet temperature specifically includes: If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is less than the preset time, the target water flow rate corresponding to the water flow control valve is obtained based on the water inlet temperature, the target set temperature and the maximum heat load of the heating component; If the water inlet temperature is lower than the preset temperature and the standby time of the water heater is greater than or equal to the preset time, or the water inlet temperature is not lower than the preset temperature, then obtaining a first water flow rate corresponding to the water volume control valve before the water heater enters the standby state; If the first water flow rate is not less than the starting water volume of the water heater, the first water flow rate is set as the target water flow rate.

2. The control method according to claim 1, characterized in that: The water heater further comprises a thermal pool component, wherein the thermal pool component comprises a thermal pool and a heating module, wherein the heating module is used to heat the water stored in the thermal pool; After the step of controlling the opening of the water flow control valve based on the target water flow rate and controlling the operation of the heating component based on the target heating load, the method further includes: If the target water flow rate is less than the starting water volume of the water heater or the target heating load is greater than the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be connected to the water outlet pipe of the water heater to mix the water stored in the thermal pool with the water in the water outlet pipe.

3. The control method according to claim 2, characterized in that: After the step of controlling the opening of the water flow control valve based on the target water flow rate and controlling the operation of the heating component based on the target heating load, the method further includes: If the target water flow rate is greater than or equal to the starting water volume of the water heater or the target heating load is less than or equal to the maximum heat load, the water outlet interface of the thermal pool assembly is controlled to be disconnected from the water outlet pipeline of the water heater.

4. A control system for a water heater, characterized in that: The water heater comprises a heating component and a water volume control valve; the control system comprises: An inlet water temperature acquisition module, used to detect the inlet water temperature of the water inlet end of the water heater when the water heater is in a standby state; A target water flow acquisition module, used to acquire a target water flow corresponding to the water flow control valve based on the water inlet temperature; A target heating load acquisition module, used to acquire a target heating load corresponding to the heating component based on the target setting temperature of the water heater, the water inlet temperature and the target water flow rate; an operation control module, configured to control the opening of the water flow control valve based on the target water flow rate, and to control the operation of the heating component based on the target heating load; Wherein, the target water flow acquisition module specifically includes: a target water flow acquisition unit, configured to acquire a target water flow corresponding to the water flow control valve based on the water inlet temperature, the target set temperature and the maximum heat load of the heating component if the water inlet temperature is lower than a preset temperature and the standby time of the water heater is less than a preset time; A first water volume acquisition unit, configured to acquire a first water flow rate corresponding to the water volume control valve before the water heater enters a standby state if the water inlet temperature is lower than a preset temperature and the standby time of the water heater is greater than or equal to the preset time, or if the water inlet temperature is not lower than a preset temperature; The target water flow rate setting unit is used to set the first water flow rate as the target water flow rate if the first water flow rate is not less than the starting water volume of the water heater.

5. A water heater, characterized in that: The water heater comprises a heating assembly and a water volume control valve, and the water heater further comprises a control system for the water heater as claimed in claim 4; The water flow control valve is arranged at the water inlet end of the water heater, and is used to adjust the water flow rate flowing into the water inlet pipeline through the water inlet end; The heating component is used to heat the water in the water inlet pipeline.

6. The water heater according to claim 5, characterized in that: The water heater also includes a thermal pool assembly; The thermal pool assembly includes a thermal pool and a heating module. The heating module is used to heat the water stored in the thermal pool. The thermal pool assembly is arranged on the water outlet pipeline at the water outlet end of the water heater.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the water heater according to any one of claims 1 to 3 is implemented.

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