Control method of heat pump system and heat pump system

Abstract

The present disclosure provides a control method of the heat pump system and the heat pump system, wherein the method includes: acquiring a power supply signal in real time when the heat pump system is turned on to operate, wherein the power supply signal includes one of a valley electrical signal, a peak electrical signal, and a free-of-charge electrical signal; controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode, wherein the user setting mode includes a hot water production mode and / or an air conditioning mode.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims the priority to the Chinese patent application with the filing No. 2024109460004 filed with the China National Intellectual Property Administration on Jul. 15, 2024, and entitled “CONTROL METHOD OF HEAT PUMP SYSTEM AND HEAT PUMP SYSTEM”, the contents of which are incorporated herein by reference in entirety.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of heat pumps, and in particular to a control method of a heat pump system and a heat pump system.BACKGROUND ART

[0003] Since the heat pump has the air conditioning function (including a cooling function and a heating function) and the hot water production function, it can be taken as the household air conditioner and heating device to meet various demands of users. However, in practical application, the power consumption of the heat pump system accounts for more than 80% of the household electric energy, which results in higher electricity consumption and electricity charge, and reduces the user's experience.SUMMARY

[0004] In view of this, an object of the present disclosure is to provide a control method of a heat pump system and a heat pump system to solve the above problem.

[0005] In a first aspect, the embodiments of the present disclosure provide a control method of a heat pump system, wherein the method includes: acquiring a power supply signal in real time when the heat pump system is turned on to operate, wherein the power supply signal includes one of a valley electrical signal, a peak electrical signal, and a free-of-charge electrical signal; controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode, wherein the user setting mode includes a hot water production mode and / or an air conditioning mode.

[0006] The above control method of the heat pump system detects the power supply signal of the heat pump system in real time, and controls the intelligent operation of the heat pump system according to the power supply signal and the user setting mode, which saves the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system, so as to improve the user's experience.

[0007] Preferably, the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the free-of-charge electrical signal includes: controlling the heat pump system to operate according to the hot water production mode until a water temperature in a domestic water tank reaches a first temperature threshold when the user setting mode is the hot water production mode; acquiring a first interval duration of the heat pump system for operating the air conditioning mode last time, and controlling the heat pump system to stop when the first interval duration is larger than a preset duration; and controlling the heat pump system to switch to operate in the last-time air conditioning mode until the air conditioner stops due to reaching temperature when the first interval duration is not larger than the preset duration.

[0008] Preferably, the air conditioning mode includes a cooling mode and a heating mode, and the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further includes: controlling the heat pump system to operate according to the cooling mode until a water temperature of the buffer water tank reaches a second temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the cooling mode; and acquiring a second interval duration of the heat pump system operating the hot water production mode last time, and controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

[0009] Preferably, the step of controlling the intelligent operation of the heat pump system according to the power supply signal and the user setting mode further includes: controlling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches the third temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the heating mode; controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

[0010] Preferably, the step of controlling the intelligent operation of the heat pump system according to the power supply signal and the user setting mode when the user setting mode is the hot water production mode and the air conditioning mode further includes: controlling the heat pump system to operate according to the cooling mode until the water temperature of the buffer water tank reaches the second temperature threshold when the air conditioning mode is the cooling mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop; or controlling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches the third temperature threshold when the air conditioning mode is the heating mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop.

[0011] Preferably, the step of controlling the intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the peak electrical signal includes: acquiring an air conditioning operation duration of the heat pump system according to the air conditioning mode when the user setting mode is the air conditioning mode; controlling the heat pump system to stop when the air conditioning operation duration is larger than a first specified duration; or controlling the heat pump system to stop when the user setting mode is the hot water production mode.

[0012] Preferably, the step of controlling the intelligent operation of the heat pump system according to the power supply signal and the user setting mode further includes: controlling the heat pump system to stop operating the hot water production mode and to operate according to the air conditioning mode when the user setting mode is the air conditioning mode and the hot water production mode; and controlling the heat pump system to stop when the air conditioning operation duration is larger than a second specified duration.

[0013] Preferably, the step of controlling the intelligent operation of the heat pump system according to the power supply signal and the user setting mode when the power supply signal is the valley electrical signal includes: controlling the heat pump system to operate according to the user setting mode until stopping due to reaching temperature.

[0014] In a second aspect, the embodiments of the present disclosure further provide a heat pump system, including a controller, a domestic water tank, and a buffer water tank, wherein the controller includes a memory, a processor, and a computer program stored in the memory and operable in the processor, and the processor executes the computer program to realize the steps of the method in the first aspect above.

[0015] In a third aspect, the embodiments of the present disclosure further provide a computer readable storage medium, wherein the computer readable storage medium stores the computer program, and the computer program executes the steps of the method in the first aspect above when run by the processor.

[0016] The embodiments of the present disclosure include the following beneficial effects.

[0017] The embodiments of the present disclosure provide a control method of the heat pump system and the heat pump system. When the heat pump system is turned on to operate, the power supply signal is acquired in real time, and the heat pump system is controlled to intelligently operate according to the power supply signal and the user setting mode. The above control method detects the power supply signal of the heat pump system in real time, and controls the intelligent operation of the heat pump system according to the power supply signal and the user setting mode, which saves the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system, so as to improve the user's experience.

[0018] Other features and advantages of the present disclosure will be illustrated in the subsequent specification, and partial will become apparent from the specification, or will be understood by implementing the present disclosure. The purposes and other advantages of the present disclosure may be realized and obtained by structures specifically indicated in the specification and drawings.

[0019] In order to make the above purposes, features, and advantages of the present disclosure more obvious and understandable, the following preferable embodiments, together with the drawings, are described in detail as follows.BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present disclosure, the drawings to be used in the description of the specific embodiments or prior art will be briefly introduced below. It is obvious that the drawings in the following description are some embodiments of the present disclosure, and for persons of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0021] FIG. 1 shows a flowchart of a control method of a heat pump system provided by an embodiment of the present disclosure; and

[0022] FIG. 2 shows a flowchart of the other control method of a heat pump system provided by an embodiment of the present disclosure.DETAILED DESCRIPTION OF EMBODIMENTS

[0023] In order to make the purpose, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the present disclosure will be clearly and completely described below in connection with the drawings. It is clear that the embodiments described are partial embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without making inventive efforts fall within the scope of protection of the present disclosure.

[0024] In order to facilitate the understanding of the embodiments, the following is a detailed description of the embodiments of the present disclosure.

[0025] The embodiment of the present disclosure provides a control method of a heat pump system. As shown in FIG. 1, the method includes the following steps.

[0026] Step S102: acquiring a power supply signal in real time when the heat pump system is turned on to operate.

[0027] Specifically, the intelligent grid is a smart electricity consumption method according to the linkage of free-of-charge electricity, peak electricity, and valley electricity in the local area, which can save the electricity charge for the user without changing the use effect. When the intelligent grid function is turned on and the heat pump system starts running, the controller of the heat pump system detects its power supply signal in real time and divides the power supply signal into three types: the valley electrical signal, the peak electrical signal (EVU), and the free-of-charge electrical signal (SG). During the practical application, the controller can determine the type of the power supply signal according to the switching state of the intelligent meter, wherein the switching states of different types of power supply signals are shown in Table 1 below:TABLE 1switching stateSGEVU411310200101

[0028] According to the above table, 1 represents closing, and 0 represents disconnection. Therefore, the switching state 4 corresponds to the free-of-charge electrical signal; the switching state 3 corresponds to the free-of-charge electrical signal; the switching state 2 corresponds to the valley electrical signal; and the switching state 1 corresponds to the peak electrical signal. Therefore, the controller detects the power supply signal in real time, and intelligently controls the heat pump system according to different types of power supply signals, so as to save the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system.

[0029] It is to be noted that the above valley electrical signal, peak electrical signal, and free-of-charge electrical signal can be determined according to the switching state of the intelligent meter, and also can be determined according to the acquiring time of the power supply signal, for example, when the acquiring time of the power supply signal is 8:00, the power supply signal is the peak electrical signal. The method of determining the type of the power supply signal according to the acquiring time can be referred to the prior art, and the embodiments of the present disclosure will not be repeated in detail herein.

[0030] Step S104: controlling the intelligent operation of the heat pump system according to the power supply signal and the user setting mode.

[0031] The user setting mode includes a hot water production mode and / or an air conditioning mode, wherein the hot water production mode is used to meet the hot water production demand for the user, and the air conditioning mode is used to meet the air conditioning demand for the user, such as a cooling demand or a heating demand, wherein the specific user setting mode can be set according to the actual situation.

[0032] The control method of the heat pump system provided by the embodiments of the present disclosure detects the power supply signal of the heat pump system in real time, and controls the intelligent operation of the heat pump system according to the power supply signal and the user setting mode, which saves the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system, so as to improve the user's experience.

[0033] In order to facilitate the understanding, the embodiments of the present disclosure separately illustrate the intelligent control processes of the heat pump system under different types of power supply signals. As shown in FIG. 2, it is described in detail below.

[0034] (A1) When the power supply signal is the valley electrical signal, the controller controls the heat pump system to operate according to the user setting mode until stopping due to reaching temperature at this time, wherein the stopping due to reaching means that the heat pump system operates according to the user setting mode, and stops after reaching the target temperature corresponding to the user setting mode.

[0035] (A2) When the power supply signal is the peak electrical signal, during the practical application, since the user setting mode includes the hot water production mode and / or the air conditioning mode, the control of the heat pump system has the following conditions.

[0036] ① When the user setting mode is the air conditioning mode, i.e., only the air conditioning mode is turned on, the controller controls the heat pump system to operate according to the air conditioning mode at this time, and acquires an air conditioning operation duration of the heat pump system according to the air conditioning mode; when the air conditioning operation duration is larger than the first specified duration, the heat pump system is controlled to stop; and when the air conditioning operation duration is not larger than the first specified duration, the heat pump system is controlled to continue to operate according to the air conditioning mode until the air conditioning operation duration is larger than the first specified duration, so as to limit a maximum operation duration of the heat pump system under the peak electrical signal according to the first specified duration, so as to save the electric energy.

[0037] ② When the user setting mode is the hot water production mode, i.e. only hot water production mode is turned on, the controller controls the heat pump system to stop at this time. During the practical application, the peak electrical signal appears in the daytime. According to the user's usage habit, the demand for hot water is often lower during the daytime, and the hot water stored in the domestic water tank can generally meet the user's hot water demand of the daytime. Therefore, under the peak electrical signal, the controller controls the heat pump system to prohibit the operation of the hot water production mode, so as to save the electricity.

[0038] ③ When the user setting mode is the air conditioning mode and the hot water production mode, i.e., the hot water production mode and the air conditioning mode are turned on at the same time, the controller controls the heat pump system to stop operating the hot water production mode and to operate according to the air conditioning mode at this time; and when the air conditioning operation duration that the heat pump system operates according to the air conditioning mode is detected to be larger than the second specified duration, the heat pump system is controlled to stop. Therefore, the heat pump system is controlled to stop producing the hot water under the peak electrical signal, and the maximum operation duration of the heat pump system is limited according to the second specified duration, so as to save the electric energy.

[0039] It should be noted that the above first specified duration and the second specified duration may be the same or different, which can be set according to the actual situation.

[0040] (A3) When the power supply signal is the free-of-charge electrical signal, in daily life, the power supply signal or the grid platform will provide residents with the low-cost electricity or free-of-charge electricity for different time periods or festivals, so as to provide more intimate services, such as the photovoltaic free-of-charge electricity, and municipal low-cost electricity. The low-cost electricity or the free-of-charge electricity usually has limitations on use, such as the use duration. Therefore, when the free-of-charge electrical signal is detected, the heat pump system is intelligently controlled, which can save the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system.

[0041] ① When the user setting mode is the hot water production mode, i.e., only the hot water production mode is turned on, the target temperature of the domestic water tank is set to be the first temperature threshold TS at this time, and the first temperature threshold TS is preferably the maximum value of the temperature of the domestic water tank, wherein it is 80° C. herein.

[0042] The controller controls the heat pump system to operate according to the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold TS. After the hot water production mode reaches the temperature, it further needs to determine whether to control the heat pump system to switch to the air conditioning mode to operate at this time. Specifically, the controller acquires the first interval duration of the heat pump system for operating the air conditioning mode last time, and controls the heat pump system to stop when the first interval duration is larger than the preset duration (preferably 7 days); and the heat pump system to is controlled to switch to operate in the last-time air conditioning mode until the air conditioner stops due to reaching temperature when the first interval duration is not larger than the preset duration.

[0043] Therefore, under the free-of-charge electrical signal, if the user only turns on the hot water production mode, the controller controls the heat pump system to operate according to the hot water production mode until the hot water reaches the preset temperature (the water temperature in the domestic water tank reaches the first temperature threshold TS). If the air conditioning mode has not been used for the preset duration (preferably 7 days) continuously at this time, the heat pump system is directly controlled to stop after reaching the hot water temperature at this time; or on the contrary, when the air conditioning mode has been used in preset duration (preferably 7 days), the controller controls the heat pump system to operate according to the air conditioning mode of the last operation until reaching the target temperature corresponding to the air conditioning mode, i.e., the air conditioner reaches the temperature. The hot water production and air conditioner both reach the temperature at this time, and the heat pump system is controlled to stop, so that under the free-of-charge electrical signal, the heat pump system is automatically controlled to operate the air conditioning mode after satisfying the hot water production demand corresponding to the hot water production mode set by the user only, which improves the comfort degree of the user.

[0044] ② If the user setting mode is the air conditioning mode, i.e., the user only turns on the air conditioning mode, it is divided into the following two situations at this time since the air conditioning mode includes the heating mode and the cooling mode.

[0045] When the air conditioning mode is the cooling mode, the target temperature of the buffer water tank is set to be the second temperature threshold THS1 at this time, wherein the second temperature threshold THS1 herein is preferably the minimum value of the buffer water tank, wherein it is 5° C. herein. The controller controls the heat pump system to operate according to the cooling mode until the water temperature in the buffer water tank reaches the second temperature threshold THS1, wherein the air conditioner reaches the temperature at this time, and it further needs to determine whether to automatically turn on the hot water production mode, i.e. the second interval duration of the heat pump system for operating the hot water production mode last time is acquired, wherein the heat pump system is controlled to stop if the second interval duration is larger than the preset duration (7 days), i.e., the heat pump system has been not operated the hot water production mode for 7 days continuously, and the heat pump system is directly controlled to stop after the air conditioner reaches the temperature at this time. When the second interval duration is not larger than the preset duration, the heat pump system is controlled to switch to operate in the hot water production mode and the heat pump system is controlled to stop until the water temperature in the domestic water tank reaches the first temperature threshold, i.e., the heat pump system has been operated the hot water production mode in 7 days, and the heat pump system is automatically controlled to operate in the hot water production mode at this time until the hot water production and the air conditioner both stops due to reaching the temperature. Therefore, under the free-of-charge electrical signal, the heat pump system is further automatically controlled to operate the hot water production mode after satisfying the cooling demand set by the user only, which satisfies the user's cooling demand and the hot water production demand at the same time, so as to improve the user's comfort degree.

[0046] Similarly, when the air conditioning mode is the heating mode, the target temperature of the buffer water tank is set to be the third temperature threshold THS2 at this time, wherein the third temperature threshold THS2 herein is preferably the maximum value of the buffer water tank, wherein it is 80° C. herein. The controller controls the heat pump system to operate according to the heating mode until the water temperature in the buffer water tank reaches the third temperature threshold THS2, wherein the air conditioner reaches the temperature at this time, and it further needs to determine whether to automatically turn on the hot water production mode, i.e. the second interval duration of the heat pump system operating the hot water production mode last time is acquired, wherein the heat pump system is controlled to stop if the second interval duration is larger than the preset duration (7 days), i.e., the heat pump system has been not operated the hot water production mode for 7 days continuously, and the heat pump system is directly controlled to stop after the air conditioner reaches the temperature at this time. When the second interval duration is not larger than the preset duration, the heat pump system is controlled to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and the then heat pump system is controlled to stop, i.e., the heat pump system operates the hot water production mode in 7 days, and the heat pump system is automatically controlled to operate in the hot water production mode until the hot water production and the air conditioner both stops due to reaching the temperature. Therefore, under the free-of-charge electrical signal, the heat pump system is further automatically controlled to operate hot water production mode after satisfying the heating demand set by the user only, which satisfies the user's heating demand and the hot water production demand at the same time, so as to improve the user's comfort degree.

[0047] ③ When the user setting mode is the air conditioning mode and the hot water production mode, i.e., the hot water production mode and the air conditioning mode are turned on at the same time, the heat pump system is controlled to operate according to the cooling mode at this time until the water temperature of the buffer water tank reaches the second temperature threshold THS1 when the air conditioning mode is the cooling mode, i.e., the air conditioner cools to reach the temperature; and the heat pump system is controlled to switch to operate in the hot water production mode and the heat pump system is controlled to stop until the water temperature in the domestic water tank reaches the first temperature threshold, i.e., the hot water production and the air conditioner both stop after reaching temperature.

[0048] Similarly, the heat pump system is controlled to operate according to the heating mode until the water temperature in the buffer water tank reaches the third temperature threshold THS2 when the air conditioning mode is the heating mode, i.e., the air conditioner heats to reach the temperature; and the heat pump system is controlled to switch to operate in the hot water production mode and the heat pump system is controlled to stop until the water temperature in the domestic water tank reaches the first temperature threshold, i.e., the hot water production and the air conditioner both stop after reaching temperature. Therefore, under the free-of-charge electrical signal, the air conditioning mode and the hot water production mode are automatically switched, so as to satisfy the user's cooling demand and the hot water production demand at the same time, which improves the user's comfort degree.

[0049] In summary, the control method of the heat pump system provided by the embodiments of the present disclosure detects the power supply signal of the heat pump system in real time, and controls the intelligent operation of the heat pump system according to the power supply signal and the user setting mode, which saves the electric energy and electricity charge of the heat pump system based on ensuring the operation effect of the heat pump system, so as to improve the user's experience.

[0050] Further, the embodiments of the present disclosure further provide a heat pump system, including the controller, the domestic water tank, and the buffer water tank, wherein the controller includes a memory, a processor, and a computer program stored in the memory and operable in the processor, and the processor executes the computer program to realize the steps of the above method embodiments.

[0051] Additionally, the heat pump system further includes a three-port valve and a heat pump host, wherein a first end of the three-port valve is connected to the heat pump host; a second end is connected to the domestic water tank; and a third end is connected the buffer water tank, wherein when the heat pump system operates the hot water production mode, the first end and the second end of the three-port valve are communicated, and the heat pump host heats the water in the domestic water tank; and when the heat pump system operates the air conditioning mode, the first end and the third end of the three-port valve are communicated, and the heat pump host provides the buffer water tank with the heat source or cold source, so that the buffer water tank and the air conditioning end heats or cools the external environment. The air conditioning end herein includes, but is not limited to a floor heating coil, radiator group, and a fan coil, wherein the specific structure of the heat pump system can be referred to the prior art, and the embodiments of the present disclosure will not be repeated in detail herein.

[0052] Additionally, the domestic water tank is further provided with electric heating device. When the heat pump system operates the hot water production mode, besides heating the water in the domestic water tank by the heat pump host, the electric heating device is simultaneously turned on, so as to improve the heating rate of the water in the domestic water tank; and when the hot water production reaches the temperature, the heat pump host and the electric heating device are both controlled to stop heating the water in the domestic water tank.

[0053] The heat pump system provided in the embodiments of the present disclosure has the same technical features as the control method of the heat pump system provided by the above embodiments, so that it can also solve the same technical problems and realize the same technical effects.

[0054] The embodiments of the present disclosure further provide a controller including a processor and a memory, wherein the memory stores machine-executable instructions that can be executed by the processor, and the processor executes the machine-executable instructions to realize the above control method of the heat pump system.

[0055] The embodiment further provides a machine-readable storage medium, and the machine-readable storage medium stores the machine-executable instructions, wherein when the machine-executable instructions are called and executed by the processor, the machine-executable instructions push the processor to realize the above control method of the heat pump system.

[0056] The control method of the heat pump system and the computer program product of the heat pump system provided by embodiments of the present disclosure include a computer readable storage medium storing program code, wherein the instructions included in the program code can be used to perform the method described in the foregoing embodiments, and the specific implementation can be referred to the method embodiments, and will not be repeated herein.

[0057] It is clearly understood by those skilled in the field that for the convenience and brevity of the description, the specific working process of the system and device described above can refer to the corresponding process in the above method embodiments, and will not be repeated herein.

[0058] Furthermore, in the description of the present disclosure, unless other expressly specifications and limitations, the terms “mount”, “connect”, and “link” are to be understood in a broad sense, e.g. it may be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; and it can be a direct connection, an indirect connection through an intermediate medium, or a communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present disclosure can be understood according to specific situations.

[0059] The function, if realized in the form of a software functional unit and sold or used as an individual product, it may be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure in essential, the part contributing to the prior art, or the part of the technical solutions can be embodied in the form of the software product. The computer software product is stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The foregoing storage medium includes: U disk, portable hard disk, ROM (read only-memory), RAM (random access memory), disk, disc, or other media that can store the program code.

[0060] In the description of the present disclosure, it should be noted that orientations or positional relationships indicated by terms, such as “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside”, and “outside”, etc., are the orientations or positional relationships based on the drawings, which are only to facilitate the description of the present disclosure and simplify the description, and are not to indicate or imply that the device or element referred to must have a particular orientation, or be constructed and operated with a particular orientation, and therefore cannot to be understood as limitations of the present disclosure. Additionally, the terms “first”, “second”, and “third”, etc., are used only for descriptions, and are not to be understood as indicating or implying a relative importance.

[0061] Finally, it should be noted that the above embodiments are only specific embodiments of the present disclosure, which are used to describe the technical solutions of the present disclosure, rather than to limit it, and the scope of protection of the present disclosure is not limited to this. Although the present disclosure is described in detail with reference to the foregoing embodiments, it should not be difficult for a person skill in the art to understand that Within the scope of the technology disclosed herein, any technical person familiar with the technical field can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for partial technical features therein; and these modification, change, or replacement shall not take the essence of the corresponding technical scheme out of the spirit and scope of the technical solutions of the embodiments of the present disclosure, and shall be covered by the scope of protection of the present disclosure. Therefore, the scope of protection in the present disclosure shall be governed by the scope of protection of the claims.

Claims

1. A control method of a heat pump system, wherein the method comprises:acquiring a power supply signal in real time when the heat pump system is turned on to operate, wherein the power supply signal comprises one of a valley electrical signal, a peak electrical signal, and a free-of-charge electrical signal;controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode, wherein the user setting mode comprises a hot water production mode and / or an air conditioning mode.

2. The method according to claim 1, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the free-of-charge electrical signal comprises:controlling the heat pump system to operate according to the hot water production mode until a water temperature in a domestic water tank reaches a first temperature threshold when the user setting mode is the hot water production mode; andacquiring a first interval duration of the heat pump system for operating the air conditioning mode last time, and controlling the heat pump system to stop when the first interval duration is larger than a preset duration; and controlling the heat pump system to switch to operate in the last-time air conditioning mode until an air conditioner stops due to reaching a temperature when the first interval duration is not larger than the preset duration.

3. The method according to claim 2, wherein the air conditioning mode comprises a cooling mode and a heating mode, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the cooling mode until a water temperature of a buffer water tank reaches a second temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the cooling mode; andacquiring a second interval duration of the heat pump system operating the hot water production mode last time, and controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

4. The method according to claim 3, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches a third temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the heating mode; controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

5. The method according to claim 4, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the user setting mode is the hot water production mode and the air conditioning mode further comprises:controlling the heat pump system to operate according to the cooling mode until the water temperature of the buffer water tank reaches the second temperature threshold when the air conditioning mode is the cooling mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop; orcontrolling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches the third temperature threshold when the air conditioning mode is the heating mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop.

6. The method according to claim 1, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the peak electrical signal comprises:acquiring an air conditioning operation duration of the heat pump system according to the air conditioning mode when the user setting mode is the air conditioning mode; controlling the heat pump system to stop when the air conditioning operation duration is larger than a first specified duration; orcontrolling the heat pump system to stop when the user setting mode is the hot water production mode.

7. The method according to claim 6, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to stop operating the hot water production mode and to operate according to the air conditioning mode when the user setting mode is the air conditioning mode and the hot water production mode; and controlling the heat pump system to stop when the air conditioning operation duration is larger than the second specified duration.

8. The method according to claim 1, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the valley electrical signal comprises:controlling the heat pump system to operate according to the user setting mode until stopping due to reaching a temperature.

9. A heat pump system, comprising a controller, a domestic water tank, and a buffer water tank, wherein the controller comprises a memory, a processor, and a computer program stored in the memory and operable in the processor, and the processor executes the computer program to realize the steps of the method according to claim 1.

10. A computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program executes the steps of the method according to claim 1 when run by a processor.

11. The heat pump system according to claim 9, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the free-of-charge electrical signal comprises:controlling the heat pump system to operate according to the hot water production mode until a water temperature in a domestic water tank reaches a first temperature threshold when the user setting mode is the hot water production mode; andacquiring a first interval duration of the heat pump system for operating the air conditioning mode last time, and controlling the heat pump system to stop when the first interval duration is larger than a preset duration; and controlling the heat pump system to switch to operate in the last-time air conditioning mode until an air conditioner stops due to reaching a temperature when the first interval duration is not larger than the preset duration.

12. The heat pump system according to claim 11, wherein the air conditioning mode comprises a cooling mode and a heating mode, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the cooling mode until a water temperature of a buffer water tank reaches a second temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the cooling mode; andacquiring a second interval duration of the heat pump system operating the hot water production mode last time, and controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

13. The heat pump system according to claim 12, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches a third temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the heating mode; controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

14. The heat pump system according to claim 13, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the user setting mode is the hot water production mode and the air conditioning mode further comprises:controlling the heat pump system to operate according to the cooling mode until the water temperature of the buffer water tank reaches the second temperature threshold when the air conditioning mode is the cooling mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop; orcontrolling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches the third temperature threshold when the air conditioning mode is the heating mode, and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop.

15. The heat pump system according to claim 9, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the peak electrical signal comprises:acquiring an air conditioning operation duration of the heat pump system according to the air conditioning mode when the user setting mode is the air conditioning mode; controlling the heat pump system to stop when the air conditioning operation duration is larger than a first specified duration; orcontrolling the heat pump system to stop when the user setting mode is the hot water production mode.

16. The heat pump system according to claim 15, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to stop operating the hot water production mode and to operate according to the air conditioning mode when the user setting mode is the air conditioning mode and the hot water production mode; and controlling the heat pump system to stop when the air conditioning operation duration is larger than the second specified duration.

17. The heat pump system according to claim 9, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the valley electrical signal comprises:controlling the heat pump system to operate according to the user setting mode until stopping due to reaching a temperature.

18. The computer readable storage medium according to claim 10, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode when the power supply signal is the free-of-charge electrical signal comprises:controlling the heat pump system to operate according to the hot water production mode until a water temperature in a domestic water tank reaches a first temperature threshold when the user setting mode is the hot water production mode; andacquiring a first interval duration of the heat pump system for operating the air conditioning mode last time, and controlling the heat pump system to stop when the first interval duration is larger than a preset duration; and controlling the heat pump system to switch to operate in the last-time air conditioning mode until an air conditioner stops due to reaching a temperature when the first interval duration is not larger than the preset duration.

19. The computer readable storage medium according to claim 18, wherein the air conditioning mode comprises a cooling mode and a heating mode, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the cooling mode until a water temperature of a buffer water tank reaches a second temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the cooling mode; andacquiring a second interval duration of the heat pump system operating the hot water production mode last time, and controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

20. The computer readable storage medium according to claim 19, wherein the step of controlling an intelligent operation of the heat pump system according to the power supply signal and a user setting mode further comprises:controlling the heat pump system to operate according to the heating mode until the water temperature of the buffer water tank reaches a third temperature threshold when the user setting mode is the air conditioning mode and the air conditioning mode is the heating mode; controlling the heat pump system to stop when the second interval duration is larger than the preset duration; and controlling the heat pump system to switch to operate in the hot water production mode until the water temperature in the domestic water tank reaches the first temperature threshold and then controlling the heat pump system to stop when the second interval duration is not larger than the preset duration.

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