Control method and device of hot water equipment and hot water equipment

Abstract

The present invention relates to the technical field of water heaters, and discloses a control method, device and water heater for water heaters, wherein the method comprises: when multiple water-using ends of the water heater are in a water-using state, obtaining the user-required water temperature of each water-using end; and performing constant temperature control on a thermostatic valve based on the minimum value of the multiple user-required water temperatures. The present invention obtains the user-required water temperatures of multiple water-using ends, and controls the thermostatic valve according to the minimum value of the user-required water temperatures, so as to ensure that when multiple water-using ends of the water heater use hot water at the same time, the actual water outlet temperature of a certain water-using end is effectively prevented from being too high, thereby scalding the user.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a control method and device for water heaters and the water heaters. Background Art

[0002] In modern homes, water heaters with constant temperature functions are favored by users. Among them, for the situation where the water heater provides hot water for multiple water-using ends (such as bathrooms, kitchens, etc.), some existing ones are set up with temperature control modules at different water-using ends. The temperature control modules are connected to the water heaters in communication. The temperature control modules are integrated with flow detection, temperature detection, temperature display, and buttons and other functions. Users can set the water temperature on the temperature control module at the water-using end, and the water heater provides corresponding hot water according to the water temperature, which can improve the user experience. However, since the water temperature set for each water-using end is different, if multiple water-using ends use hot water at the same time in the future, scalding is likely to occur. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a control method for a hot water device, which effectively solves the problem of scalding easily occurring when multiple water-using ends use water at the same time.

[0004] The above technical problems are solved by the following technical solutions:

[0005] A control method for a water heater, the water heater comprising a thermostatic valve; the method comprising:

[0006] When multiple water-using ends of the water heater are in a water-using state, obtaining the water temperature required by the user at each of the water-using ends;

[0007] The thermostatic valve is thermostatically controlled based on a minimum value among the multiple user required water temperatures.

[0008] Compared with the background technology, the control method of the present invention has the following beneficial effects: when multiple water-using ends of the hot water equipment are in a water-using state, the user-required water temperature of each water-using end is obtained; after obtaining the user-required water temperature of each water-using end, the obtained multiple user-required water temperatures are compared, and the minimum value of the multiple user-required water temperatures is selected, and the minimum value of the user-required water temperatures is used as a reference for constant temperature control, thereby adjusting the thermostatic valve to adjust the mixing ratio of hot water and cold water. By obtaining the user-required water temperatures of multiple water-using ends and controlling the thermostatic valve according to the minimum value of the user-required water temperatures, it is ensured that when multiple water-using ends of the hot water equipment use hot water at the same time, the actual water outlet temperature of a certain water-using end is effectively prevented from being too high to cause scalding to the user.

[0009] In one embodiment, obtaining the user required water temperature of each water-using end includes:

[0010] The user preset temperature of each water-using end is obtained, and the user preset temperature is used as the user required water temperature.

[0011] Beneficial effect: By setting a temperature control module at the water-using end and connecting the temperature control module to the hot water device, the user can set a preset temperature on the temperature control module, that is, the user's expected setting value for the outlet water temperature at the water-using end, which reflects the user's demand for the outlet water temperature at the water-using end. The user preset temperature of the water-using end is obtained through the temperature control module, and the obtained user preset temperature is sent to the hot water device, and the user preset temperature is used as the user's required water temperature, thereby providing a basis for the subsequent control of the actual water temperature of the water-using end.

[0012] In one embodiment, obtaining the user required water temperature of each water-using end includes:

[0013] Obtaining deviation parameters of each of the water-using ends and user-preset temperatures of each of the water-using ends;

[0014] The user preset temperature is compensated according to the deviation parameter to obtain the user required water temperature.

[0015] Beneficial effect: The deviation parameters can be pre-saved in the memory. By using the deviation parameters to compensate for the user's preset temperature, the user's required water temperature at each water-using end can be obtained. This can reduce the influence of various factors such as the installation environment of the pipeline, length differences, ambient temperature, and water pressure fluctuations, which may cause the deviation between the actual temperature at the user's water-using end and the set temperature, thereby improving the accuracy of the user's required water temperature.

[0016] In one embodiment, the deviation parameter is a deviation temperature, and obtaining the deviation parameter of the water-using end includes:

[0017] Obtain the current user preset temperature of the water-using end, and obtain the current real-time water temperature of the water-using end;

[0018] Based on the difference between the current user preset temperature and the current real-time water temperature, the deviation temperature is obtained and saved.

[0019] Beneficial effect: The temperature control module is integrated with a temperature sensor, which obtains the user preset temperature of the water-using end through the temperature control module, and further obtains the real-time water temperature of the water-using end (the temperature of the user's actual water-using end) through the temperature sensor, and then sends the user preset temperature and the real-time water temperature to the hot water device through communication. When only a certain water-using end is using water, the thermostatic valve is first controlled to work based on the current user preset temperature. After the water outlet temperature of the water-using end is stable, the current real-time water temperature of the water-using end is detected, and the current real-time water temperature is compared with the current user preset temperature. When the deviation between the two is greater than the preset temperature threshold, the deviation temperature between the two is calculated, the deviation temperature is saved, and the user preset temperature is compensated based on the deviation temperature. Finally, the thermostatic valve is controlled to work based on the compensated user preset temperature (i.e., the user's required water temperature) so that the real-time water temperature of the water-using end can reach the user preset temperature, thereby reducing the deviation between the temperature of the user's actual water-using end and the set temperature caused by various factors such as the installation environment, length difference, ambient temperature, and water pressure fluctuation of the pipeline.

[0020] In one embodiment, the deviation parameter is a deviation coefficient, and obtaining the deviation parameter of the water-using end includes:

[0021] Obtain the current user preset temperature of the water-using end, and obtain the current real-time water temperature of the water-using end;

[0022] Based on the quotient of the current user preset temperature and the current real-time water temperature, the deviation coefficient is obtained and saved.

[0023] Beneficial effect: by using the current user preset temperature at the water-using end and the current real-time water temperature at the water-using end, further calculate the ratio of the current user preset temperature to the current real-time water temperature, that is, divide the current user preset temperature by the current real-time water temperature to obtain the deviation coefficient, and save the deviation coefficient; compensate the user preset temperature based on the deviation coefficient, and finally control the thermostatic valve based on the compensated user preset temperature (that is, the user required water temperature) so that the real-time water temperature at the water-using end can reach the user preset temperature, thereby reducing the deviation between the actual temperature at the user's water-using end and the set temperature caused by various factors such as the installation environment, length difference, ambient temperature and water pressure fluctuation of the pipeline.

[0024] In one embodiment, the thermostatic valve is provided with a motor, and the thermostatic valve is thermostatically controlled based on the minimum value of the multiple user required water temperatures, including:

[0025] Based on the user required water temperature of each water-using end, the cold and hot water mixing ratio value of each water-using end is obtained, and the mapping relationship between the number of motor operation steps corresponding to the water-using end and the cold and hot water mixing ratio value is queried to obtain the number of motor operation steps corresponding to each water-using end;

[0026] The motor of the thermostatic valve is controlled based on the minimum value or the maximum value among the plurality of motor operation steps.

[0027] Beneficial effect: The cold and hot water mixing ratio is the proportional relationship between the cold water flow and the hot water flow during the mixing process of cold and hot water. After obtaining the cold and hot water mixing ratio of each water-using end through the user's required water temperature of each water-using end, the mapping relationship between the motor running steps corresponding to the water-using end and the cold and hot water mixing ratio is queried, and the motor running steps corresponding to the water-using end are further obtained according to the obtained cold and hot water mixing ratio. After obtaining the motor running steps corresponding to multiple water-using ends, the proportional relationship between the motor running steps and the user's required water temperature is determined; when the motor running steps are in direct proportion to the user's required water temperature, the motor of the thermostatic valve is controlled according to the minimum value of the multiple motor running steps; when the motor running steps are in inverse proportion to the user's required water temperature, the motor of the thermostatic valve is controlled according to the maximum value of the multiple motor running steps. By selecting the appropriate motor running steps to control the thermostatic valve, it can be ensured that when multiple water-using ends are using water at the same time, the motor of the thermostatic valve is controlled by the motor running steps corresponding to the water-using end with the smallest user required water temperature, thereby ensuring that the outlet water temperature of each water-using end will not cause the user to be scalded due to the excessive outlet water temperature.

[0028] In one embodiment, the thermostatic valve is provided with a motor, and the thermostatic valve is thermostatically controlled based on the minimum value of the multiple user required water temperatures, including:

[0029] Based on the user required water temperature of each water-using end, the cold and hot water mixing ratio value of each water-using end is obtained, and the mapping relationship between the motor rotation angle corresponding to the water-using end and the cold and hot water mixing ratio value is queried to obtain the motor rotation angle corresponding to each water-using end;

[0030] The motor of the thermostatic valve is controlled based on the minimum value or the maximum value among the plurality of motor rotation angles.

[0031] Beneficial effect: After obtaining the cold and hot water mixing ratio value of each water-using end through the user's required water temperature at each water-using end, the mapping relationship between the motor rotation angle corresponding to the water-using end and the cold and hot water mixing ratio value is queried, and the motor rotation angle corresponding to the water-using end is further obtained according to the obtained cold and hot water mixing ratio value. After obtaining the motor rotation angles corresponding to multiple water-using ends, the proportional relationship between the motor rotation angle and the user's required water temperature is determined; when the motor rotation angle is in direct proportion to the user's required water temperature, the motor of the thermostatic valve is controlled according to the minimum value of the multiple motor rotation angles; when the motor rotation angle is in inverse proportion to the user's required water temperature, the motor of the thermostatic valve is controlled according to the maximum value of the multiple motor rotation angles. By selecting a suitable motor rotation angle to control the thermostatic valve, it can be ensured that when multiple water-using ends are using water at the same time, the motor of the thermostatic valve is controlled with the motor rotation angle corresponding to the water-using end with the lowest user required water temperature, thereby ensuring that the outlet water temperature of each water-using end will not cause scalding of the user due to excessive outlet water temperature.

[0032] In one embodiment, when the multiple water-using ends of the water heater are in a water-using state, the method specifically includes:

[0033] When the preset water outlet temperatures of multiple water-using terminals and the water flow information of multiple water-using terminals are received, it is determined that the multiple water-using terminals are in a simultaneous water-using state.

[0034] Beneficial effect: When the hot water equipment receives the preset water outlet temperature and corresponding water flow information from multiple different water users, it indicates that the multiple water users have corresponding water demand settings, and water is flowing in the water users, and the multiple water users are performing water operations. At this time, it can be determined that the multiple water users are in a simultaneous water use state, thereby providing a basis for further controlling the thermostatic valves of each water user.

[0035] On the other hand, the present invention further provides a control device for a water heater, the water heater comprising a thermostatic valve, the control device comprising:

[0036] An acquisition module, used for acquiring the user required water temperature of each water-using end when the multiple water-using ends of the water-heating equipment are in a water-using state;

[0037] A control module is used to perform constant temperature control on the thermostatic valve based on a minimum value of a plurality of water temperatures required by the users.

[0038] On the other hand, the present invention further provides a water heater, comprising: a memory, a processor, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus;

[0039] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the control method of the water heater as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic flow chart of a method for controlling a water heater according to an embodiment of the present invention;

[0042] Figure 2 A schematic flow chart of a method for controlling a water heater according to another embodiment of the present invention;

[0043] Figure 3 A schematic flow chart of a method for controlling a water heater according to another embodiment of the present invention;

[0044] Figure 4 A schematic flow chart of a method for controlling a water heater according to another embodiment of the present invention;

[0045] Figure 5 A schematic flow chart of a method for controlling a water heater according to another embodiment of the present invention;

[0046] Figure 6 A schematic diagram of the structure of a control device for a water heater according to an embodiment of the present invention;

[0047] Figure 7 The present invention is a schematic structural diagram of a water heating device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] According to an embodiment of the present invention, Figure 1 As shown, on the one hand, a control method for a hot water device is provided, wherein the hot water device comprises a thermostatic valve; the method comprises the following steps:

[0051] Step S100: when multiple water-using ends of the water-heating equipment are in a water-using state, obtaining the user required water temperature of each water-using end;

[0052] Step S200: performing constant temperature control on the thermostatic valve based on the minimum value of the water temperatures required by multiple users.

[0053] In this embodiment, when multiple water-using ends of the water-heating device are in a water-using state, the user-demanded water temperature of each water-using end is obtained; after obtaining the user-demanded water temperature of each water-using end, the obtained multiple user-demanded water temperatures are compared, and the minimum value of the multiple user-demanded water temperatures is selected, and the minimum value of the user-demanded water temperatures is used as a reference for constant temperature control, thereby adjusting the thermostatic valve to adjust the mixing ratio of hot water and cold water. By obtaining the user-demanded water temperatures of multiple water-using ends and controlling the thermostatic valve according to the minimum value of the user-demanded water temperatures, it is ensured that when multiple water-using ends of the water-heating device use hot water at the same time, the actual water outlet temperature of a water-using end is effectively prevented from being too high, thereby scalding the user.

[0054] In one embodiment, step S100 includes: obtaining the user preset temperature of each water-using end, and the user preset temperature is used as the user required water temperature.

[0055] In this embodiment, a temperature control module is provided at the water-using end, and the temperature control module is connected to the hot water device in communication; the user can set a preset temperature on the temperature control module, that is, the user's expected setting value for the outlet water temperature at the water-using end, which reflects the user's demand for the outlet water temperature of the water-using end. The user preset temperature of the water-using end is obtained through the temperature control module, and the obtained user preset temperature is sent to the hot water device, and the user preset temperature is used as the user's required water temperature, thereby providing a basis for the subsequent control of the actual water temperature of the water-using end. The water-using end may be a faucet, a shower head, etc.

[0056] like Figure 2As shown, in one embodiment, step S100 further includes the following steps:

[0057] Step S110, obtaining the deviation parameters of each water-using end and the user-preset temperature of each water-using end;

[0058] Step S120: Compensate the user preset temperature according to the deviation parameter to obtain the user required water temperature.

[0059] In this embodiment, the deviation parameters can be pre-saved in the memory. By using the deviation parameters to compensate for the user's preset temperature, the user's required water temperature at each water-using end can be obtained. This can reduce the influence of various factors such as the installation environment of the pipeline, length differences, ambient temperature, and water pressure fluctuations, which may cause the deviation between the actual temperature at the user's water-using end and the set temperature, thereby improving the accuracy of the user's required water temperature.

[0060] In one embodiment, the deviation parameter is a deviation temperature, and step S110 includes the following steps:

[0061] Step S111, obtaining the current user preset temperature of the water-using end, and obtaining the current real-time water temperature of the water-using end;

[0062] Step S112: obtaining a deviation temperature based on the difference between the current user preset temperature and the current real-time water temperature, and saving the deviation temperature.

[0063] In this embodiment, a temperature sensor is integrated on the temperature control module, and the user preset temperature of the water end is obtained through the temperature control module, and the real-time water temperature of the water end (the temperature of the user's actual water end) is further obtained through the temperature sensor, and then the user preset temperature and the real-time water temperature are sent to the hot water device through communication. When only a certain water end is using water, the thermostatic valve is first controlled to work based on the current user preset temperature. After the water outlet temperature of the water end is stable, the current real-time water temperature of the water end is detected, and the current real-time water temperature is compared with the current user preset temperature. When the deviation between the two is greater than the preset temperature threshold, the deviation temperature between the two is calculated and the deviation temperature is saved. Among them, the preset temperature threshold can be set to 2°C; when the deviation temperature between the real-time water temperature and the user preset temperature is greater than 2°C, the user preset temperature is compensated; when the deviation temperature between the real-time water temperature and the user preset temperature is less than or equal to 2°C, the deviation temperature is within the normal range, and the user preset temperature is not compensated. For example, the user presets the temperature to 40°C, and the thermostatic valve is controlled to work according to 40°C. After the water supply temperature of the hot water equipment stabilizes, the real-time water temperature at the water-using end is detected. At this time, the real-time water temperature is 37°C, and the deviation temperature is 40°C-37°C=3°C. Among them, 3°C is the deviation caused by the influence of ambient temperature or pipelines; and when 3°C is greater than 2°C, the user preset temperature needs to be compensated at this time, and the user preset temperature is adjusted to 43°C. Among them, the outlet water temperature is stable for a period of time, and the thermostatic valve is continuously adjusted until the outlet water at the thermostatic valve reaches the user preset temperature, that is, the outlet water is stable; it can be 10s, 12s, 14s, etc., without specific limitation.

[0064] The user preset temperature is further compensated based on the deviation temperature, and finally the thermostatic valve is controlled based on the compensated user preset temperature (i.e. the user required water temperature) so that the real-time water temperature of the water-using end can reach the user preset temperature, thereby reducing the deviation between the temperature of the user's actual water-using end and the set temperature caused by various factors such as the installation environment, length difference, ambient temperature, and water pressure fluctuation of the pipeline. Moreover, after saving the temperature deviation, when multiple water-using ends use water at the same time, the deviation temperature can also be directly used to compensate the corresponding user preset temperature to obtain the user required water temperature.

[0065] like Figure 3 As shown, in one embodiment, the deviation parameter is a deviation coefficient, and step S110 further includes the following steps:

[0066] Step S113, obtaining the current user preset temperature of the water-using end, and obtaining the current real-time water temperature of the water-using end;

[0067] Step S114: Obtain a deviation coefficient based on the quotient of the current user preset temperature and the current real-time water temperature, and save the deviation coefficient.

[0068] In this embodiment, obtaining the current user preset temperature and the current real-time water temperature of the water-using end is the same as step S111, which will not be described in detail here. Further calculate the ratio of the current user preset temperature to the current real-time water temperature, that is, divide the current user preset temperature by the current real-time water temperature to obtain the deviation coefficient, and save the deviation coefficient; compensate the user preset temperature based on the deviation coefficient, and finally control the thermostatic valve to work based on the compensated user preset temperature (that is, the user's required water temperature) so that the real-time water temperature of the water-using end can reach the user preset temperature, thereby reducing the deviation between the actual temperature of the user's water-using end and the set temperature caused by various factors such as the installation environment, length difference, ambient temperature, and water pressure fluctuation of the pipeline. For example, the user preset temperature is 40°C, and the thermostatic valve is controlled to work according to 40°C. After the water supply temperature of the hot water equipment is stable, the real-time water temperature of the water-using end is detected. At this time, the real-time water temperature is 37°C, and the deviation coefficient is 37 / 40. The user's required water temperature is further calculated based on the quotient of the user's preset temperature and the deviation coefficient; for example, the user's required temperature = 40 ÷ (37 / 40); so as to more finely control the water temperature of the hot water equipment and more effectively adjust the water temperature to the user's preset temperature.

[0069] like Figure 4 As shown, in one embodiment, the thermostatic valve is provided with a motor, and step S200 includes the following steps:

[0070] Step S210: based on the user required water temperature of each water-using end, obtain the cold and hot water mixing ratio value of each water-using end, query the mapping relationship between the motor running steps corresponding to the water-using end and the cold and hot water mixing ratio value, and obtain the motor running steps corresponding to each water-using end;

[0071] In step S210, the cold and hot water mixing ratio is the ratio of the cold water flow to the hot water flow during the mixing process of cold and hot water. After obtaining the cold and hot water mixing ratio of each water-using end through the user's required water temperature of each water-using end, the mapping relationship between the number of motor running steps corresponding to the water-using end and the cold and hot water mixing ratio is queried, and the number of motor running steps corresponding to the water-using end is further obtained according to the obtained cold and hot water mixing ratio. Among them, for each water-using end, there is a specific mapping relationship between the number of motor running steps and the cold and hot water mixing ratio. Specifically, it can be obtained by testing and calibrating the characteristics of the thermostatic valve. For example, when the motor runs 0 steps, the hot water mixing ratio is 0%, and the cold water mixing ratio is 100%; when the motor runs 200 steps, the cold and hot water mixing ratio becomes 3:1, that is, the hot water flow is 3 times the cold water flow, thereby forming a mapping relationship. The mixing ratio value and the number of steps of the motor operation form a one-to-one corresponding mapping relationship table, and the mapping relationship table is stored in the memory. By querying this mapping relationship table, the corresponding number of motor running steps can be obtained according to the required mixing ratio.

[0072] Step S220: Control the motor of the thermostatic valve based on the minimum or maximum value of the running steps of the multiple motors.

[0073] In step S220, after obtaining the motor running steps corresponding to multiple water-using ends, determine the proportional relationship between the motor running steps and the user's required water temperature; when the motor running steps are in direct proportion to the user's required water temperature, control the thermostatic valve motor according to the minimum of the multiple motor running steps; when the motor running steps are in inverse proportion to the user's required water temperature, control the thermostatic valve motor according to the maximum of the multiple motor running steps. By selecting a suitable motor running step to control the thermostatic valve, it can be ensured that when multiple water-using ends are using water at the same time, the thermostatic valve motor is controlled with the motor running step corresponding to the water-using end with the lowest preset water outlet temperature, thereby ensuring that the water outlet temperature of each water-using end will not cause the user to be scalded due to the water outlet temperature being too high.

[0074] like Figure 5 As shown, in one embodiment, the thermostatic valve is provided with a motor, and step S200 further includes the following steps:

[0075] Step S230: based on the user required water temperature of each water-using end, obtain the cold and hot water mixing ratio value of each water-using end, query the mapping relationship between the motor rotation angle corresponding to the water-using end and the cold and hot water mixing ratio value, and obtain the motor rotation angle corresponding to each water-using end;

[0076] In step S230, after obtaining the hot and cold water mixing ratio value of each water-using end through the user demand water temperature of each water-using end, the mapping relationship between the motor rotation angle corresponding to the water-using end and the hot and cold water mixing ratio value is queried, and the motor rotation angle corresponding to the water-using end is further obtained according to the obtained hot and cold water mixing ratio value. Among them, for each water-using end, there is a specific corresponding relationship between the motor rotation angle of the thermostatic valve and the hot and cold water mixing ratio value, which can be obtained through experimental testing and calibration.

[0077] Step S240: Control the motor of the thermostatic valve based on the minimum value or the maximum value of the plurality of motor rotation angles.

[0078] In step S240, after obtaining the motor rotation angles corresponding to multiple water-using ends, determine the proportional relationship between the motor rotation angle and the user's required water temperature; when the motor rotation angle is in direct proportion to the user's required water temperature, control the thermostatic valve motor according to the minimum value of the multiple motor rotation angles; when the motor rotation angle is in inverse proportion to the user's required water temperature, control the thermostatic valve motor according to the maximum value of the multiple motor rotation angles. By selecting a suitable motor rotation angle to control the thermostatic valve, it can be ensured that when multiple water-using ends are using water at the same time, the motor of the thermostatic valve is controlled by the motor rotation angle corresponding to the water-using end with the lowest preset water outlet temperature, thereby ensuring that the water outlet temperature of each water-using end will not cause the user to be scalded due to the excessively high water outlet temperature. Among them, the mapping relationship between the motor rotation angle and the cold and hot water mixing ratio value can be a cold and hot water mixing ratio curve or a cold and hot water mixing ratio mapping table, etc., and the specific mapping relationship embodiment is not specifically limited.

[0079] In one of the embodiments, when multiple water-using ends of the water-heating equipment are in water-using state, it specifically includes: receiving preset water outlet temperatures of multiple water-using ends and water flow information of multiple water-using ends, then determining that the multiple water-using ends are in a simultaneous water-using state.

[0080] In this embodiment, when the hot water device receives the preset water outlet temperature and corresponding water flow information from multiple different water users, it indicates that multiple water users have corresponding water demand settings, and water flows in the water users, and multiple water users are performing water operations. At this time, it can be determined that multiple water users are in a simultaneous water use state, thereby facilitating the subsequent further control of the thermostatic valves of each water user. For example, the system receives the preset water outlet temperature of 40°C and the water flow of 8 liters / minute for the shower head in the bedroom bathroom, and at the same time receives the preset water outlet temperature of 35°C and the water flow of 3 liters / minute for the kitchen faucet. It can be inferred that the shower head in the bedroom bathroom and the kitchen faucet are in a simultaneous water use state.

[0081] According to an embodiment of the present invention, Figure 6 As shown, on the other hand, a control device for a hot water device is also provided, the hot water device includes a thermostatic valve, and the control device includes:

[0082] The acquisition module 100 is used to acquire the user required water temperature of each water-using end when multiple water-using ends of the water-heating device are in a water-using state;

[0083] The control module 200 is used to perform constant temperature control on the thermostatic valve based on the minimum value of the water temperatures required by multiple users.

[0084] In one embodiment, the acquisition module 100 includes:

[0085] The first acquisition unit is used to acquire the user preset temperature of each water-using end, and the user preset temperature is used as the user required water temperature.

[0086] In one embodiment, the acquisition module 100 further includes:

[0087] A second acquisition unit is used to acquire the deviation parameter of each water-using end and the user-preset temperature of each water-using end;

[0088] The third acquisition unit is used to compensate the user preset temperature according to the deviation parameter to obtain the user required water temperature.

[0089] In one embodiment, the third acquisition unit includes:

[0090] The first acquisition subunit is used to acquire the current user preset temperature of the water-using end and acquire the current real-time water temperature of the water-using end;

[0091] The first calculation subunit is used to obtain a deviation temperature based on the difference between the current user preset temperature and the current real-time water temperature, and save the deviation temperature.

[0092] In one embodiment, the third acquisition unit further includes:

[0093] The second acquisition subunit is used to acquire the current user preset temperature of the water-using end and acquire the current real-time water temperature of the water-using end;

[0094] The second calculation subunit is used to obtain a deviation coefficient based on the quotient of the current user preset temperature and the current real-time water temperature, and save the deviation coefficient.

[0095] In one embodiment, the thermostatic valve is provided with a motor, and the control module 200 comprises:

[0096] The first calculation unit is used to obtain the cold and hot water mixing ratio value of each water-using end based on the user demand water temperature of each water-using end, query the mapping relationship between the motor running steps corresponding to the water-using end and the cold and hot water mixing ratio value, and obtain the motor running steps corresponding to each water-using end;

[0097] The first control unit is used to control the motor of the thermostatic valve based on the minimum value or the maximum value of the plurality of motor operation steps.

[0098] In one embodiment, the thermostatic valve is provided with a motor, and the control module 200 comprises:

[0099] The second calculation unit is used to obtain the cold and hot water mixing ratio value of each water-using end based on the user demand water temperature of each water-using end, query the mapping relationship between the motor rotation angle corresponding to the water-using end and the cold and hot water mixing ratio value, and obtain the motor rotation angle corresponding to each water-using end;

[0100] The second control unit is used to control the motor of the thermostatic valve based on the minimum value or the maximum value of the plurality of motor rotation angles.

[0101] Figure 7 The schematic diagram of the structure of the embodiment of the water heater provided by the embodiment of the present invention is shown. The specific embodiment of the present invention does not limit the specific implementation of the water heater.

[0102] like Figure 7 As shown, the water heating device may include: a processor (processor) 502 , a communications interface (Communications Interface) 504 , a memory (memory) 506 , and a communication bus 508 .

[0103] The processor 502, the communication interface 504, and the memory 506 communicate with each other via the communication bus 508. The communication interface 504 is used to communicate with other devices such as a client or other server network elements. The processor 502 is used to execute the program 510, which can specifically execute the relevant steps in the above-mentioned control method embodiment for the water heater.

[0104] Specifically, the program 510 may include program code including computer executable instructions.

[0105] The processor 502 may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiment of the present invention. The one or more processors included in the water heater may be processors of the same type, such as one or more CPUs; or processors of different types, such as one or more CPUs and one or more ASICs.

[0106] The memory 506 is used to store the program 510. The memory 506 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0107] The program 510 may be specifically called by the processor 502 to enable the water heater to execute the relevant steps in the above-mentioned control method embodiment for the water heater.

[0108] It can be understood by those skilled in the art that Figure 7 The structure shown is only for illustration and does not limit the structure of the above-mentioned equipment. Figure 7 More or fewer components as shown, or with Figure 7Different configurations are shown.

[0109] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0110] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features 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.

[0111] The specific contents of the above specific embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A method for controlling a hot water device, characterized in that: The hot water device comprises a thermostatic valve; The method comprises: When multiple water-using ends of the water heater are in a water-using state, obtaining the water temperature required by the user at each of the water-using ends; The thermostatic valve is thermostatically controlled based on a minimum value among the multiple user required water temperatures.

2. The control method of the water heater according to claim 1, characterized in that: The obtaining of the user required water temperature of each water-using end includes: The user preset temperature of each water-using end is obtained, and the user preset temperature is used as the user required water temperature.

3. The control method of the water heater according to claim 1, characterized in that: The obtaining of the user required water temperature of each water-using end includes: Obtaining deviation parameters of each of the water-using ends and user-preset temperatures of each of the water-using ends; The user preset temperature is compensated according to the deviation parameter to obtain the user required water temperature.

4. The control method of the water heater according to claim 3, characterized in that: The deviation parameter is a deviation temperature, and obtaining the deviation parameter of the water-using end includes: Obtain the current user preset temperature of the water-using end, and obtain the current real-time water temperature of the water-using end; Based on the difference between the current user preset temperature and the current real-time water temperature, the deviation temperature is obtained and saved.

5. The control method of the water heater according to claim 3, characterized in that: The deviation parameter is a deviation coefficient, and obtaining the deviation parameter of the water-using end includes: Obtain the current user preset temperature of the water-using end, and obtain the current real-time water temperature of the water-using end; Based on the quotient of the current user preset temperature and the current real-time water temperature, the deviation coefficient is obtained and saved.

6. The control method of the water heater according to claim 1, characterized in that: The thermostatic valve is provided with a motor, and the thermostatic valve is thermostatically controlled based on the minimum value of the multiple user required water temperatures, including: Based on the user required water temperature of each water-using end, the cold and hot water mixing ratio value of each water-using end is obtained, and the mapping relationship between the number of motor operation steps corresponding to the water-using end and the cold and hot water mixing ratio value is queried to obtain the number of motor operation steps corresponding to each water-using end; The motor of the thermostatic valve is controlled based on the minimum value or the maximum value among the plurality of motor operation steps.

7. The control method of the water heater according to claim 1, characterized in that: The thermostatic valve is provided with a motor, and the thermostatic valve is thermostatically controlled based on the minimum value of the multiple user required water temperatures, including: Based on the user required water temperature of each water-using end, the cold and hot water mixing ratio value of each water-using end is obtained, and the mapping relationship between the motor rotation angle corresponding to the water-using end and the cold and hot water mixing ratio value is queried to obtain the motor rotation angle corresponding to each water-using end; The motor of the thermostatic valve is controlled based on the minimum value or the maximum value among the plurality of motor rotation angles.

8. The control method of the water heater according to claim 1, characterized in that: When the multiple water-using ends of the water heater are in a water-using state, the method specifically includes: When the preset water outlet temperatures of multiple water-using terminals and the water flow information of multiple water-using terminals are received, it is determined that the multiple water-using terminals are in a simultaneous water-using state.

9. A control device for a hot water device, characterized in that: The hot water device comprises a thermostatic valve, and the control device comprises: An acquisition module, used for acquiring the user required water temperature of each water-using end when the multiple water-using ends of the water-heating equipment are in a water-using state; A control module is used to perform constant temperature control on the thermostatic valve based on a minimum value of a plurality of water temperatures required by the users.

10. A water heating device, characterized in that: include: A memory, a processor, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the control method of the water heating device according to any one of claims 1 to 8.

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