Air energy heat pump and solar energy coupling hot water system and control method thereof

Abstract

The application provides an air energy heat pump and solar energy coupled hot water system and a control method thereof. The system comprises: an acquisition module configured to acquire first water temperature data of a heat preservation water tank corresponding to an air energy heat pump unit, second water temperature data of a solar energy heat collector, and user-side water supply pressure data; a control module configured to determine whether a user-side water valve is turned on according to the user-side water supply pressure data, and to control an execution module to output a control signal about selecting a corresponding air energy heat pump unit and solar energy heat collector coupled water supply mode according to the determination result and the first water temperature data, the second water temperature data, a difference between the second water temperature data and the first water temperature data; and the execution module is configured to output a control signal about selecting a corresponding linkage mode of the air energy heat pump unit and the solar energy heat collector. The system can give priority to fully utilize the clean solar energy source, reduce the use of the air energy heat pump unit, and save energy.

Description

Technical Field

[0001] This invention relates to the field of solar and air energy combined heating scheme design technology, specifically to an air energy heat pump coupled with solar energy hot water system and its control method. Background Technology

[0002] Hot water is an indispensable part of people's lives, with a large total demand and a long peak water usage period. Therefore, the total energy consumption of hot water is enormous, and energy-saving control of hot water systems is of great significance for energy conservation and emission reduction.

[0003] In existing solar and air source combined heating systems, the solar heat source typically uses temperature difference control circulation, while the hot water in the solar collector, which is close to the required temperature, is not fully utilized, wasting a certain amount of energy. The system is relatively inefficient, and the linkage heating effect between the air source heat pump and the solar water heater is poor.

[0004] Therefore, the existing technology still needs further development. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide an air source heat pump coupled with solar energy hot water system and its control method, so as to solve the problems of insufficient utilization of hot water in the solar collector that is close to the required temperature, wasting a certain amount of energy, relatively inefficient system operation, and poor linkage heating effect between air source heat pump and solar water heater in the existing technology.

[0006] To achieve the above-mentioned technical objectives, according to a first aspect of the present invention, an air source heat pump coupled with solar energy for hot water supply is provided, the system comprising:

[0007] The acquisition module is used to acquire the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side.

[0008] The control module is used to determine whether the user side has opened the water valve based on the water supply pressure data on the user side, and to control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the judgment result and the first water temperature data, the second water temperature data, and the difference between the second water temperature data and the first water temperature data.

[0009] The execution module is used to output control signals for selecting the appropriate linkage mode of the air source heat pump unit and the solar water heater.

[0010] Specifically, the system also includes:

[0011] The solar circulating pump is provided. The insulated water tank is provided with a first outlet and a first inlet. The solar circulating pump is located between the first outlet of the insulated water tank and the inlet of the solar water heater. The first outlet of the insulated water tank, the solar water heater and the first inlet of the insulated water tank form a water circulation loop through the pipeline. When the solar circulating pump is turned on, the insulated water tank and the solar water heater are thermally coupled.

[0012] Specifically, the system also includes:

[0013] The air source heat pump unit has a circulating pump. The insulated water tank is equipped with a second inlet and a second outlet. The second outlet of the insulated water tank, the air source heat pump unit, and the second inlet of the insulated water tank form a water circulation loop through pipelines. The air source heat pump unit circulating pump is located between the second outlet of the insulated water tank and the air source heat pump unit. When the air source heat pump unit circulating pump is turned on, the air source heat pump unit and the insulated water tank circulate water for heating.

[0014] Specifically, the system also includes:

[0015] A first electric butterfly valve and a second electric butterfly valve are provided. The first electric butterfly valve is located between the outlet of the solar water heater and the water supply outlet on the user side, and the second electric butterfly valve is located between the tap water inlet and the water inlet of the solar water heater.

[0016] Specifically, the system also includes:

[0017] The third, fourth, and fifth electric butterfly valves are provided. The insulated water tank is equipped with a third inlet and a third outlet. The third electric butterfly valve is located between the outlet of the solar water heater and the first inlet of the insulated water tank. The fourth electric butterfly valve is located between the tap water inlet and the third inlet of the insulated water tank. The fifth electric butterfly valve is located between the third outlet of the insulated water tank and the user-side water supply outlet. When the fifth electric butterfly valve is opened and the first and second electric butterfly valves are closed simultaneously, a fourth thermal energy coupling linkage water supply mode is realized.

[0018] Specifically, the system also includes:

[0019] The first temperature sensor is installed inside the insulated water tank to collect the first water temperature data of the insulated water tank and send it to the control module;

[0020] The second temperature sensor is installed in the solar water heater to collect the second water temperature data of the solar water heater and send it to the control module.

[0021] Specifically, the system also includes:

[0022] The user-side pressure sensor and user-side water supply pump are installed at the user-side water supply port to detect the water supply pressure data on the user side and send it to the control module. The user-side water supply pump is used to supply water to the user when the user opens the water valve.

[0023] According to a second aspect of the present invention, a control method for an air-source heat pump coupled with a solar-powered hot water system is provided, the method comprising:

[0024] The acquisition module acquires the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side.

[0025] The control module determines whether the user's water valve is open based on the water supply pressure data on the user side. Based on the determination result and the difference between the first water temperature data, the second water temperature data, and the second water temperature data and the first water temperature data, the control module outputs a control signal to select the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

[0026] Specifically, the method further includes:

[0027] Determine whether the water supply pressure data on the user side is less than or equal to a first preset threshold. If yes, determine whether the user side has opened the water valve; otherwise, determine whether the user side has not opened the water valve.

[0028] Specifically, the method further includes:

[0029] If the judgment result is that the water valve is not turned on by the user, the control module judges whether the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold, and judges whether the first water temperature data is less than or equal to the third preset threshold. Based on the judgment result, the control execution module outputs a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

[0030] Specifically, the method further includes:

[0031] If the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold and the first water temperature data is less than or equal to the third preset threshold, the control module controls the execution module to output a control signal for selecting the first thermal energy coupling water supply mode. The execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling. The thermal energy coupling method is to control the water circulation between the solar water heater and the insulated water tank.

[0032] Specifically, the method further includes:

[0033] If the difference between the second water temperature data and the first water temperature data is less than the second preset threshold, the control module determines whether the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, and controls the execution module to output a control signal related to selecting the appropriate air source heat pump unit and solar water heater heat energy coupling water supply mode based on the judgment result.

[0034] Specifically, the method further includes:

[0035] If the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, or if the first water temperature data is greater than the third preset threshold, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling. The way to stop thermal energy coupling is to control the water circulation between the solar water heater and the insulated water tank to stop.

[0036] Specifically, the method further includes:

[0037] Determine whether the second water temperature data is less than or equal to the thirteenth preset threshold, and determine whether the first water temperature data is greater than or equal to the fourteenth preset threshold. Based on the determination results, control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

[0038] Specifically, the method includes:

[0039] If the second water temperature data is less than or equal to the thirteenth preset threshold, and the first water temperature data is greater than or equal to the fourteenth preset threshold, the control module controls the execution module to output a control signal related to selecting the first thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling.

[0040] Specifically, the method further includes:

[0041] If the second water temperature data is greater than the thirteenth preset threshold, determine whether the second water temperature data is greater than or equal to the fifteenth preset threshold. If the second water temperature data is greater than or equal to the fifteenth preset threshold, or if the second water temperature data is greater than the first water temperature data, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling.

[0042] Specifically, the method further includes:

[0043] If the user opens the water valve, the control module determines whether the second water temperature data is within the first preset temperature range, and controls the execution module to output a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the determination result.

[0044] Specifically, the method further includes:

[0045] If the second water temperature data is within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the third thermal energy coupling linkage water supply mode. The third thermal energy coupling linkage water supply mode is a solar water supply mode. The execution module controls the solar water heater to supply water to the user side. The execution module controls the first electric butterfly valve and the second electric butterfly valve to open simultaneously, and controls the third electric butterfly valve and the fifth electric butterfly valve to close simultaneously, thereby realizing the third thermal energy coupling linkage water supply mode. The execution module controls the solar water heater to supply water to the user side.

[0046] Specifically, the method further includes:

[0047] If the second water temperature data is not within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the fourth thermal energy coupling linkage water supply mode. The fourth thermal energy coupling linkage water supply mode is to supply water to the user side through the insulated water tank. The execution module controls the fifth electric butterfly valve to open and controls the first electric butterfly valve and the second electric butterfly valve to close simultaneously, thereby realizing the fourth thermal energy coupling linkage water supply mode. The execution module controls the insulated water tank to supply water to the user side.

[0048] Specifically, the control module's determination of whether the second water temperature data is within the first preset temperature range also includes:

[0049] The control module acquires the current date data, current time data, and liquid level data in the insulated water tank. Based on the current date data, it acquires the current season data, determines whether the current season is winter, and outputs a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the determination result, the liquid level data in the insulated tank, and the current time data.

[0050] Specifically, the method further includes:

[0051] If the current season is winter, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to turn on the direct heating mode based on the judgment result.

[0052] Specifically, the method further includes:

[0053] If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0054] Specifically, the method further includes:

[0055] If the liquid level data is greater than the fifth preset threshold, the control module determines whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

[0056] Specifically, the method further includes:

[0057] If the current season is not winter, determine whether the current time data is within the second preset time interval. If so, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the judgment result.

[0058] Specifically, the method further includes:

[0059] If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0060] Specifically, the method further includes:

[0061] If the liquid level data is greater than the fifth preset threshold, determine whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

[0062] Specifically, the method further includes:

[0063] If the current time data is not within the second preset time interval, determine whether the liquid level data is less than or equal to the seventh preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0064] Specifically, the method further includes:

[0065] If the liquid level data is greater than the seventh preset threshold, determine whether the liquid level data is greater than or equal to the eighth preset threshold. If so, output a control signal to control the air source heat pump unit to shut down the direct heating mode, and execute the module to control the air source heat pump unit to shut down the direct heating mode.

[0066] Specifically, the method further includes:

[0067] Determine whether the first water temperature data is less than or equal to the ninth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the circulating pump, thereby controlling the air source heat pump unit and the insulated water tank to circulate water for heating.

[0068] Specifically, the method further includes:

[0069] If the first water temperature data is greater than the ninth preset threshold, the control module controls the execution module to output a control signal to shut down the circulating pump of the air source heat pump unit, thereby controlling the air source heat pump unit and the insulated water tank to stop circulating water heating.

[0070] Specifically, the method further includes:

[0071] The control module determines whether the first water temperature data is greater than or equal to the eleventh preset threshold, and whether the liquid level data is less than or equal to the twelfth preset threshold. Based on the determination results, it outputs control signals for opening or closing the solenoid valve for controlling the tap water supply, thereby enabling or stopping the tap water supply to the air source heat pump and solar coupled hot water system.

[0072] Specifically, the method further includes:

[0073] If the first water temperature data is less than the eleventh preset threshold or the liquid level data is greater than the twelfth preset threshold, the control module controls the execution module to output a control signal to close the solenoid valve for controlling the tap water supply, thereby stopping the tap water supply to the air source heat pump and solar coupled hot water system.

[0074] If the first water temperature data is greater than or equal to the eleventh preset threshold and the liquid level data is less than the twelfth preset threshold, the control module controls the execution module to output a control signal to control the opening of the tap water replenishment solenoid valve, thereby replenishing the tap water in the air source heat pump and solar coupled hot water system.

[0075] Specifically, the method further includes:

[0076] If it is determined that the water valve is currently open on the user side, a control signal is output to control the water supply pump on the user side to supply water to the user.

[0077] If it is determined that the water valve is not currently turned on at the user's side, a control signal is output to shut down the water supply pump at the user's side, thus stopping the water supply to the user.

[0078] Beneficial effects:

[0079] This invention organically combines an air-source heat pump with a solar water heater, enabling intelligent linkage control and fully leveraging the energy-saving advantages of solar energy and the reliability of the air-source heat pump. The invention upgrades the solar system structure and optimizes the segmented control strategy, adding a direct water supply pipeline to the solar water heater. Through segmented solar control, it achieves direct water supply from the solar water heater and circulating heat with the insulated water tank, prioritizing the full utilization of clean solar heat sources and reducing the use of air-source heat pump units. The intelligent linkage control between the air-source heat pump and the solar water heater provides a highly efficient hot water system solution. Attached Figure Description

[0080] Figure 1 This is a structural diagram of an air-source heat pump coupled with solar energy for hot water, provided in a specific embodiment of the present invention.

[0081] Figure 2 This is a flowchart of a control method for an air-source heat pump coupled with a solar-powered hot water system provided in a specific embodiment of the present invention. Detailed Implementation

[0082] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0083] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0084] Please see Figure 1 This invention provides an air source heat pump coupled with solar energy for hot water system, comprising:

[0085] The acquisition module is used to acquire the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side.

[0086] The control module is used to determine whether the user side has opened the water valve based on the water supply pressure data on the user side, and to control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the judgment result and the first water temperature data, the second water temperature data, and the difference between the second water temperature data and the first water temperature data.

[0087] The execution module is used to output control signals for selecting the appropriate linkage mode of the air source heat pump unit and the solar water heater.

[0088] Specifically, the system also includes:

[0089] The solar circulating pump is provided. The insulated water tank is provided with a first outlet and a first inlet. The solar circulating pump is located between the first outlet of the insulated water tank and the inlet of the solar water heater. The first outlet of the insulated water tank, the solar water heater and the first inlet of the insulated water tank form a water circulation loop through the pipeline. When the solar circulating pump is turned on, the insulated water tank and the solar water heater are thermally coupled.

[0090] Specifically, the system also includes:

[0091] The air source heat pump unit has a circulating pump. The insulated water tank is equipped with a second inlet and a second outlet. The second outlet of the insulated water tank, the air source heat pump unit, and the second inlet of the insulated water tank form a water circulation loop through pipelines. The air source heat pump unit circulating pump is located between the second outlet of the insulated water tank and the air source heat pump unit. When the air source heat pump unit circulating pump is turned on, the air source heat pump unit and the insulated water tank circulate water for heating.

[0092] Specifically, the system also includes:

[0093] A first electric butterfly valve and a second electric butterfly valve are provided. The first electric butterfly valve is located between the outlet of the solar water heater and the water supply outlet on the user side, and the second electric butterfly valve is located between the tap water inlet and the water inlet of the solar water heater.

[0094] Specifically, the system also includes:

[0095] The third, fourth, and fifth electric butterfly valves are provided. The insulated water tank is equipped with a third inlet and a third outlet. The third electric butterfly valve is located between the outlet of the solar water heater and the first inlet of the insulated water tank. The fourth electric butterfly valve is located between the tap water inlet and the third inlet of the insulated water tank. The fifth electric butterfly valve is located between the third outlet of the insulated water tank and the user-side water supply outlet. When the fifth electric butterfly valve is opened and the first and second electric butterfly valves are closed simultaneously, a fourth thermal energy coupling linkage water supply mode is realized.

[0096] Specifically, the system also includes:

[0097] The first temperature sensor is installed inside the insulated water tank to collect the first water temperature data of the insulated water tank and send it to the control module;

[0098] The second temperature sensor is installed in the solar water heater to collect the second water temperature data of the solar water heater and send it to the control module.

[0099] Specifically, the system also includes:

[0100] The user-side pressure sensor and user-side water supply pump are installed at the user-side water supply port to detect the water supply pressure data on the user side and send it to the control module. The user-side water supply pump is used to supply water to the user when the user opens the water valve.

[0101] Please see Figure 2 The present invention provides another embodiment, which provides a control method for an air source heat pump coupled with a solar energy hot water system. The control method for the air source heat pump coupled with a solar energy hot water system includes:

[0102] S100: The acquisition module acquires the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side.

[0103] It should be noted here that step S100 includes the following:

[0104] A first preset threshold is set, which can be specifically set according to the water supply pressure data of the user side when the water valve is not turned on. The first preset threshold is preferably 100 kPa. The first preset threshold of 100 kPa was obtained by the technicians of this invention through a large number of experiments.

[0105] A second preset threshold is set, preferably 6 degrees Celsius;

[0106] A third preset threshold is set, preferably 55 degrees Celsius;

[0107] A fourth preset threshold is set, preferably 2 degrees Celsius;

[0108] A fifth, sixth, seventh, and eighth preset threshold are set, which represent four liquid levels in the insulated water tank, from high to low, respectively. The sixth preset threshold is greater than the fifth preset threshold, the fifth preset threshold is greater than the eighth preset threshold, and the eighth preset threshold is greater than the seventh preset threshold.

[0109] A ninth preset threshold is set, preferably 42 degrees Celsius;

[0110] A tenth preset threshold is set, wherein the ninth preset threshold is preferably 46 degrees Celsius;

[0111] An eleventh preset threshold is set, preferably 47 degrees Celsius;

[0112] A twelfth preset threshold is set, and the eleventh preset threshold is preferably 43 degrees Celsius;

[0113] A thirteenth preset threshold is set, preferably 4 degrees Celsius;

[0114] A fourteenth preset threshold is set, preferably 15 degrees Celsius;

[0115] A fifteenth preset threshold is set, preferably 8 degrees Celsius;

[0116] A first temperature range is preset, preferably [42, 55].

[0117] A second preset time interval is set, preferably [14:00, 22:00].

[0118] It is understood that the preferred values ​​of the above preset thresholds were obtained by the technical personnel of this invention through a large number of experiments, which can better realize the organic combination and intelligent linkage control of air source heat pump and solar water heater.

[0119] S200: The control module determines whether the user side should open the water valve based on the water supply pressure data on the user side.

[0120] Specifically, the method further includes:

[0121] Determine whether the water supply pressure data on the user side is less than or equal to a first preset threshold. If yes, determine whether the user side has opened the water valve; otherwise, determine whether the user side has not opened the water valve.

[0122] S300: Based on the judgment result and the first water temperature data, the second water temperature data, and the difference between the second water temperature data and the first water temperature data, the control execution module outputs a control signal regarding the selection of the appropriate air source heat pump unit and solar water heater heat energy coupling water supply mode.

[0123] Specifically, the method further includes:

[0124] If the judgment result is that the water valve is not turned on by the user, the control module judges whether the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold, and judges whether the first water temperature data is less than or equal to the third preset threshold. Based on the judgment result, the control execution module outputs a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

[0125] Specifically, the method further includes:

[0126] If the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold and the first water temperature data is less than or equal to the third preset threshold, the control module controls the execution module to output a control signal for selecting the first thermal energy coupling water supply mode. The execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling. The thermal energy coupling method is to control the water circulation between the solar water heater and the insulated water tank.

[0127] It should be noted that if the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold and the first water temperature data is less than or equal to the third preset threshold, it proves that the temperature of the hot water in the solar water heater is higher and the temperature of the hot water in the insulated water tank is lower. At this time, by controlling the thermal coupling between the solar water heater and the insulated water tank, the clean solar heat source can be fully utilized first, the use of air heat pump units can be reduced, energy can be saved, the intelligence level of the present invention can be greatly improved, and the application scenarios of the present invention can be greatly expanded.

[0128] Specifically, the method further includes:

[0129] If the difference between the second water temperature data and the first water temperature data is less than the second preset threshold, the control module determines whether the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, and controls the execution module to output a control signal related to selecting the appropriate air source heat pump unit and solar water heater heat energy coupling water supply mode based on the judgment result.

[0130] Specifically, the method further includes:

[0131] If the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, or if the first water temperature data is greater than the third preset threshold, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling. The way to stop thermal energy coupling is to control the water circulation between the solar water heater and the insulated water tank to stop.

[0132] It should be noted that if the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, or if the first water temperature data is greater than the third preset threshold, it indicates that the temperature of the hot water in the solar water heater is low or the temperature of the hot water in the insulated water tank is high. Therefore, there is no need to perform thermal energy coupling between the solar water heater and the insulated water tank, which further improves the intelligence level of the present invention.

[0133] Specifically, the method further includes:

[0134] Determine whether the second water temperature data is less than or equal to the thirteenth preset threshold, and determine whether the first water temperature data is greater than or equal to the fourteenth preset threshold. Based on the determination results, control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

[0135] Specifically, the method includes:

[0136] If the second water temperature data is less than or equal to the thirteenth preset threshold, and the first water temperature data is greater than or equal to the fourteenth preset threshold, the control module controls the execution module to output a control signal related to selecting the first thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling.

[0137] It should be noted that if the second water temperature data is less than or equal to the thirteenth preset threshold, and the first water temperature data is greater than or equal to the fourteenth preset threshold, it indicates that the water temperature in the solar water heater is too low and there is a risk of freezing. At this time, the water temperature in the insulated water tank is higher. Controlling the solar water heater and the insulated water tank to perform thermal energy coupling can effectively achieve solar antifreeze. Thermal energy coupling can be achieved by turning on the solar circulation pump, which further improves the intelligence level of the present invention.

[0138] The method includes:

[0139] If the second water temperature data is greater than the thirteenth preset threshold, determine whether the second water temperature data is greater than or equal to the fifteenth preset threshold. If the second water temperature data is greater than or equal to the fifteenth preset threshold, or if the second water temperature data is greater than the first water temperature data, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling.

[0140] Specifically, the method further includes:

[0141] If the user opens the water valve, the control module determines whether the second water temperature data is within the first preset temperature range, and controls the execution module to output a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the determination result.

[0142] Specifically, the method further includes:

[0143] If the second water temperature data is within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the third thermal energy coupling linkage water supply mode. The third thermal energy coupling linkage water supply mode is a solar water supply mode. The execution module controls the solar water heater to supply water to the user side. The execution module controls the first electric butterfly valve and the second electric butterfly valve to open simultaneously, and controls the third electric butterfly valve and the fifth electric butterfly valve to close simultaneously, thereby realizing the third thermal energy coupling linkage water supply mode. The execution module controls the solar water heater to supply water to the user side.

[0144] It should be noted that if the second water temperature data is within the first preset temperature range, it proves that the water temperature of the solar water heater is suitable for the user, and the solar water heater can be directly controlled to supply water to the user.

[0145] Specifically, the method further includes:

[0146] If the second water temperature data is not within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the fourth thermal energy coupling linkage water supply mode. The fourth thermal energy coupling linkage water supply mode is to supply water to the user side through the insulated water tank. The execution module controls the fifth electric butterfly valve to open and controls the first electric butterfly valve and the second electric butterfly valve to close simultaneously, thereby realizing the fourth thermal energy coupling linkage water supply mode. The execution module controls the insulated water tank to supply water to the user side.

[0147] Specifically, the control module's determination of whether the second water temperature data is within the first preset temperature range also includes:

[0148] The control module acquires the current date data, current time data, and liquid level data in the insulated water tank. Based on the current date data, it acquires the current season data, determines whether the current season is winter, and outputs a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the determination result, the liquid level data in the insulated tank, and the current time data.

[0149] Specifically, the method further includes:

[0150] If the current season is winter, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to turn on the direct heating mode based on the judgment result.

[0151] Specifically, the method further includes:

[0152] If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0153] It should be noted that if the liquid level data is less than or equal to the fifth preset threshold, it indicates that it is not only winter and the temperature is low, but the liquid level data is also low, and the water supply of the insulated water tank may be insufficient. At the same time, the execution module controls the air source heat pump unit to start the direct heating mode and start the tap water replenishment mode, which further improves the intelligence level of the invention and greatly improves the user experience.

[0154] Specifically, the method further includes:

[0155] If the liquid level data is greater than the fifth preset threshold, the control module determines whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

[0156] It should be noted that if the liquid level data is greater than the sixth preset threshold, it proves that the water volume in the insulated water tank is sufficient and there is no need to turn on the direct heating mode, which further improves the intelligence level of the present invention. The direct heating mode is to directly heat the water passing through the air source heat pump unit to the set temperature, and the circulating water heating is to gradually heat the water passing through the air source heat pump unit to the set temperature.

[0157] Specifically, the method further includes:

[0158] If the current season is not winter, determine whether the current time data is within the second preset time interval. If so, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the judgment result.

[0159] Specifically, the method further includes:

[0160] If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0161] It can be understood that the second preset time interval is the time interval of peak water usage, indicating that the current time is during peak water usage. If the current time data is within the second preset time interval, and the liquid level data is less than or equal to the fifth preset threshold, it indicates that the water output of the insulated water tank may be insufficient. In this case, the air source heat pump unit is controlled to start the direct heating mode, further improving the intelligence level of the invention. This invention sets four maximum liquid levels based on the total daily hot water volume of the applicable location, and comprehensively considers peak and off-peak water usage periods to provide a segmented control strategy for the system, further improving the intelligence level of the invention.

[0162] Specifically, the method further includes:

[0163] If the liquid level data is greater than the fifth preset threshold, determine whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

[0164] Specifically, the method further includes:

[0165] If the current time data is not within the second preset time interval, determine whether the liquid level data is less than or equal to the seventh preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

[0166] Specifically, the method further includes:

[0167] If the liquid level data is greater than the seventh preset threshold, determine whether the liquid level data is greater than or equal to the eighth preset threshold. If so, output a control signal to control the air source heat pump unit to shut down the direct heating mode, and execute the module to control the air source heat pump unit to shut down the direct heating mode.

[0168] Specifically, the method further includes:

[0169] Determine whether the first water temperature data is less than or equal to the ninth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the circulating pump, thereby controlling the air source heat pump unit and the insulated water tank to circulate water for heating.

[0170] It should be noted that when the first water temperature data is less than or equal to the ninth preset threshold, it indicates that the water temperature in the insulated water tank is low, but not too low, and does not affect the user's use. The air source heat pump unit can be controlled to circulate water for heating, eliminating the need for direct heating mode, thus further saving energy and improving the intelligence level of the invention.

[0171] Specifically, the method further includes:

[0172] If the first water temperature data is greater than the ninth preset threshold, the control module controls the execution module to output a control signal to shut down the circulating pump of the air source heat pump unit, thereby controlling the air source heat pump unit and the insulated water tank to stop circulating water heating.

[0173] It should be noted that when the first water temperature data is greater than the ninth preset threshold, it proves that the water temperature in the insulated water tank can meet the user's needs. The air source heat pump unit and the insulated water tank can be controlled to stop circulating water heating, further saving energy and further improving the intelligence level of the invention.

[0174] Specifically, the method further includes:

[0175] The control module determines whether the first water temperature data is greater than or equal to the eleventh preset threshold, and whether the liquid level data is less than or equal to the twelfth preset threshold. Based on the determination results, it outputs control signals for opening or closing the solenoid valve for controlling the tap water supply, thereby enabling or stopping the tap water supply to the air source heat pump and solar coupled hot water system.

[0176] Specifically, the method further includes:

[0177] If the first water temperature data is less than the eleventh preset threshold or the liquid level data is greater than the twelfth preset threshold, the control module controls the execution module to output a control signal to close the solenoid valve for controlling the tap water supply, thereby stopping the tap water supply to the air source heat pump and solar coupled hot water system.

[0178] If the first water temperature data is greater than or equal to the eleventh preset threshold and the liquid level data is less than the twelfth preset threshold, the control module controls the execution module to output a control signal to control the opening of the tap water replenishment solenoid valve, thereby replenishing the tap water in the air source heat pump and solar coupled hot water system.

[0179] It should be noted that if the first water temperature data is greater than or equal to the eleventh preset threshold and the liquid level data is less than the twelfth preset threshold, it indicates that the water temperature in the insulated water tank is high but the liquid level is low. In this case, the present invention will replenish the water with tap water, which further improves the intelligence level of the present invention.

[0180] Specifically, the method further includes:

[0181] If it is determined that the water valve is currently open on the user side, a control signal is output to control the water supply pump on the user side to supply water to the user.

[0182] If it is determined that the water valve is not currently turned on at the user's side, a control signal is output to shut down the water supply pump at the user's side, thus stopping the water supply to the user.

[0183] It is understood that this invention organically combines an air-source heat pump with a solar water heater, enabling intelligent linkage control and fully leveraging the energy-saving advantages of solar energy and the reliability of the air-source heat pump. This invention upgrades the solar system structure and optimizes the segmented control strategy, adding a direct water supply pipeline to the solar water heater. Through segmented solar control, it achieves direct water supply from the solar water heater and circulating heat with the insulated water tank, prioritizing the full utilization of clean solar heat sources and reducing the use of air-source heat pump units. The intelligent linkage control between the air-source heat pump and the solar water heater provides a highly efficient hot water system solution.

[0184] In a preferred embodiment, this application also provides an electronic device, the electronic device comprising:

[0185] The computer device includes a memory and a processor, wherein the memory stores computer-readable instructions that, when executed by the processor, implement the control method for the air-source heat pump and solar-coupled hot water system. The computer device can be broadly categorized as a server, terminal, or any other electronic device with the necessary computing and / or processing capabilities. In one embodiment, the computer device may include a processor, memory, network interface, communication interface, etc., connected via a system bus. The processor of the computer device can be used to provide the necessary computing, processing, and / or control capabilities. The memory of the computer device may include a non-volatile storage medium and internal memory. The non-volatile storage medium may store an operating system, computer programs, etc. The internal memory can provide an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface and communication interface of the computer device can be used to connect and communicate with external devices via a network. When the computer program is executed by the processor, it performs the steps of the method of the present invention.

[0186] Those skilled in the art will understand that the method steps of this invention can be performed by a computer program instructing related hardware, such as a computer device or processor, to perform the steps of this invention when executed. Depending on the context, any references herein to memory, storage, databases, or other media may include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid-state drive, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0187] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0188] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A solar-coupled air source heat pump and solar water heating system, characterized in that, The system includes: The acquisition module is used to acquire the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side. The control module is used to determine whether the user side has opened the water valve based on the water supply pressure data on the user side, and to control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the judgment result and the first water temperature data, the second water temperature data, and the difference between the second water temperature data and the first water temperature data. The execution module is used to output control signals regarding the selection of the corresponding linkage mode of the air source heat pump unit and the solar water heater; A solar circulating pump is provided. The insulated water tank is provided with a first outlet and a first inlet. The solar circulating pump is located between the first outlet of the insulated water tank and the inlet of the solar water heater. The first outlet of the insulated water tank, the solar water heater and the first inlet of the insulated water tank form a water circulation loop through the pipeline. When the solar circulating pump is turned on, the insulated water tank and the solar water heater are thermally coupled. The air source heat pump unit has a circulating pump. The insulated water tank is provided with a second inlet and a second outlet. The second outlet of the insulated water tank, the air source heat pump unit, and the second inlet of the insulated water tank form a water circulation loop through pipelines. The air source heat pump unit circulating pump is located between the second outlet of the insulated water tank and the air source heat pump unit. When the air source heat pump unit circulating pump is turned on, the air source heat pump unit and the insulated water tank circulate water for heating. The first temperature sensor is installed inside the insulated water tank to collect the first water temperature data of the insulated water tank and send it to the control module; The second temperature sensor is installed in the solar water heater to collect the second water temperature data of the solar water heater and send it to the control module; The user-side pressure sensor and user-side water supply pump are installed at the user-side water supply port to detect the water supply pressure data on the user side and send it to the control module. The user-side water supply pump is used to supply water to the user when the user opens the water valve.

2. The air-source heat pump coupled with solar energy hot water system according to claim 1, characterized in that, The system also includes: A first electric butterfly valve and a second electric butterfly valve are provided. The first electric butterfly valve is located between the outlet of the solar water heater and the water supply outlet on the user side, and the second electric butterfly valve is located between the tap water inlet and the water inlet of the solar water heater.

3. The air source heat pump coupled with solar energy hot water system according to claim 1, characterized in that, The system also includes: The third, fourth, and fifth electric butterfly valves are provided. The insulated water tank is equipped with a third inlet and a third outlet. The third electric butterfly valve is located between the outlet of the solar water heater and the first inlet of the insulated water tank. The fourth electric butterfly valve is located between the tap water inlet and the third inlet of the insulated water tank. The fifth electric butterfly valve is located between the third outlet of the insulated water tank and the user-side water supply outlet. When the fifth electric butterfly valve is opened and the first and second electric butterfly valves are closed simultaneously, a fourth thermal energy coupling linkage water supply mode is realized.

4. A control method for an air-source heat pump coupled with a solar-powered hot water system, applied to the system as described in any one of claims 1-3, characterized in that, The method includes: The acquisition module acquires the first water temperature data of the insulated water tank corresponding to the air source heat pump unit, the second water temperature data of the solar water heater, and the water supply pressure data on the user side. The control module determines whether the user's water valve is open based on the water supply pressure data on the user side. Based on the determination result and the difference between the first water temperature data, the second water temperature data, and the second water temperature data and the first water temperature data, the control module outputs a control signal to select the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

5. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: Determine whether the water supply pressure data on the user side is less than or equal to a first preset threshold. If yes, determine whether the user side has opened the water valve; otherwise, determine whether the user side has not opened the water valve.

6. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: If the judgment result is that the water valve is not turned on by the user, the control module judges whether the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold, and judges whether the first water temperature data is less than or equal to the third preset threshold. Based on the judgment result, the control execution module outputs a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

7. The control method for the air source heat pump and solar-coupled hot water system according to claim 6, characterized in that, The method further includes: If the difference between the second water temperature data and the first water temperature data is greater than or equal to the second preset threshold and the first water temperature data is less than or equal to the third preset threshold, the control module controls the execution module to output a control signal for selecting the first thermal energy coupling water supply mode. The execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling. The thermal energy coupling method is to control the water circulation between the solar water heater and the insulated water tank.

8. The control method for the air source heat pump and solar-coupled hot water system according to claim 6, characterized in that, The method further includes: If the difference between the second water temperature data and the first water temperature data is less than the second preset threshold, the control module determines whether the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, and controls the execution module to output a control signal related to selecting the appropriate air source heat pump unit and solar water heater heat energy coupling water supply mode based on the judgment result.

9. The control method for the air source heat pump and solar-coupled hot water system according to claim 8, characterized in that, The method further includes: If the difference between the second water temperature data and the first water temperature data is less than or equal to the fourth preset threshold, or if the first water temperature data is greater than the third preset threshold, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling. The way to stop thermal energy coupling is to control the water circulation between the solar water heater and the insulated water tank to stop.

10. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: Determine whether the second water temperature data is less than or equal to the thirteenth preset threshold, and determine whether the first water temperature data is greater than or equal to the fourteenth preset threshold. Based on the determination results, control the execution module to output control signals related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater.

11. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method includes: If the second water temperature data is less than or equal to the thirteenth preset threshold, and the first water temperature data is greater than or equal to the fourteenth preset threshold, the control module controls the execution module to output a control signal related to selecting the first thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to perform thermal energy coupling.

12. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method includes: If the second water temperature data is greater than the thirteenth preset threshold, determine whether the second water temperature data is greater than or equal to the fifteenth preset threshold. If the second water temperature data is greater than or equal to the fifteenth preset threshold, or if the second water temperature data is greater than the first water temperature data, the control module controls the execution module to output a control signal related to selecting the second thermal energy coupling water supply mode, and the execution module controls the solar water heater and the insulated water tank to stop thermal energy coupling.

13. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: If the user opens the water valve, the control module determines whether the second water temperature data is within the first preset temperature range, and controls the execution module to output a control signal related to selecting the appropriate heat energy coupling water supply mode of the air source heat pump unit and the solar water heater based on the determination result.

14. The control method for the air source heat pump and solar-coupled hot water system according to claim 13, characterized in that, The method further includes: If the second water temperature data is within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the third thermal energy coupling linkage water supply mode. The third thermal energy coupling linkage water supply mode is a solar water supply mode. The execution module controls the solar water heater to supply water to the user side. The execution module controls the first electric butterfly valve and the second electric butterfly valve to open simultaneously, and controls the third electric butterfly valve and the fifth electric butterfly valve to close simultaneously, thereby realizing the third thermal energy coupling linkage water supply mode. The execution module controls the solar water heater to supply water to the user side.

15. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 13, characterized in that, The method further includes: If the second water temperature data is not within the first preset temperature range, the control module controls the execution module to output a control signal regarding the selection of the fourth thermal energy coupling linkage water supply mode. The fourth thermal energy coupling linkage water supply mode is to supply water to the user side through the insulated water tank. The execution module controls the fifth electric butterfly valve to open and controls the first electric butterfly valve and the second electric butterfly valve to close simultaneously, thereby realizing the fourth thermal energy coupling linkage water supply mode. The execution module controls the insulated water tank to supply water to the user side.

16. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 13, characterized in that, The control module's determination of whether the second water temperature data is within the first preset temperature range also includes: The control module acquires the current date data, current time data, and liquid level data in the insulated water tank. Based on the current date data, it acquires the current season data, determines whether the current season is winter, and outputs a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the determination result, the liquid level data in the insulated tank, and the current time data.

17. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 16, characterized in that, The method further includes: If the current season is winter, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to turn on the direct heating mode based on the judgment result.

18. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 17, characterized in that, The method further includes: If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

19. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 17, characterized in that, The method further includes: If the liquid level data is greater than the fifth preset threshold, the control module determines whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

20. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 16, characterized in that, The method further includes: If the current season is not winter, determine whether the current time data is within the second preset time interval. If so, determine whether the liquid level data is less than or equal to the fifth preset threshold, and output a control signal regarding whether to control the air source heat pump unit to start the direct heating mode based on the judgment result.

21. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 20, characterized in that, The method further includes: If the liquid level data is less than or equal to the fifth preset threshold, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

22. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 20, characterized in that, The method further includes: If the liquid level data is greater than the fifth preset threshold, determine whether the liquid level data is greater than or equal to the sixth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to shut down the direct heating mode, and the execution module controls the air source heat pump unit to shut down the direct heating mode.

23. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 20, characterized in that, The method further includes: If the current time data is not within the second preset time interval, determine whether the liquid level data is less than or equal to the seventh preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit to start the direct heating mode, and the execution module controls the air source heat pump unit to start the direct heating mode.

24. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 23, characterized in that, The method further includes: If the liquid level data is greater than the seventh preset threshold, determine whether the liquid level data is greater than or equal to the eighth preset threshold. If so, output a control signal to control the air source heat pump unit to shut down the direct heating mode, and execute the module to control the air source heat pump unit to shut down the direct heating mode.

25. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: Determine whether the first water temperature data is less than or equal to the ninth preset threshold. If so, the control module controls the execution module to output a control signal to control the air source heat pump unit's circulating pump to start, thereby controlling the air source heat pump unit and the insulated water tank to circulate water for heating.

26. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 25, characterized in that, The method further includes: If the first water temperature data is greater than the ninth preset threshold, the control module controls the execution module to output a control signal to shut down the circulating pump of the air source heat pump unit, thereby controlling the air source heat pump unit and the insulated water tank to stop circulating water heating.

27. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: The control module determines whether the first water temperature data is greater than or equal to the eleventh preset threshold, and whether the liquid level data is less than or equal to the twelfth preset threshold. Based on the determination results, it outputs control signals for opening or closing the solenoid valve for controlling the tap water supply, thereby enabling or stopping the tap water supply to the air source heat pump and solar coupled hot water system.

28. The control method for an air-source heat pump coupled with a solar-powered hot water system according to claim 27, characterized in that, The method further includes: If the first water temperature data is less than the eleventh preset threshold or the liquid level data is greater than the twelfth preset threshold, the control module controls the execution module to output a control signal to close the solenoid valve for controlling the tap water supply, thereby stopping the tap water supply to the air source heat pump and solar coupled hot water system. If the first water temperature data is greater than or equal to the eleventh preset threshold and the liquid level data is less than the twelfth preset threshold, the control module controls the execution module to output a control signal to control the opening of the tap water replenishment solenoid valve, thereby replenishing the tap water in the air source heat pump and solar coupled hot water system.

29. The control method for the air source heat pump and solar-coupled hot water system according to claim 4, characterized in that, The method further includes: If it is determined that the water valve is currently open on the user side, a control signal is output to control the water supply pump on the user side to supply water to the user. If it is determined that the water valve is not currently turned on at the user's side, a control signal is output to shut down the water supply pump at the user's side, thus stopping the water supply to the user.

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