Control method and device for heat pump system, heat pump system and computer readable storage medium

Abstract

The invention relates to the technical field of heat pumps, and discloses a control method for a heat pump system which comprises a compressor, a four-way valve, an outdoor heat exchanger, an air conditioner heat exchanger, a floor heating capillary tube, a first control valve, a second control valve, a third control valve, a three-way valve, a fourth control valve and a heating device. The control method comprises the steps that under the condition that a heating and dehumidifying instruction is received, the current heating requirement is determined; the four-way valve is controlled to reverse to enable the heat pump system to operate in a refrigeration mode, the first control valve and the third control valve are controlled to be opened, the second control valve is controlled to be closed, and the heating device is controlled to be started; and according to the current heating requirement, the working states of the fourth control valve and the three-way valve are controlled. The double requirements of heating and dehumidification can be met at the same time so as to cope with various extreme environment working conditions, so that a relatively comfortable indoor environment is created, and the actual experience of a user is optimized. The invention further discloses a control device for the heat pump system, the heat pump system and a computer readable storage medium.

Description

Technical Field

[0001] This application relates to the technical field of heat pumps, for example, to a control method, device, heat pump system, and computer-readable storage medium for a heat pump system. Background Art

[0002] Currently, with the improvement of people's living standards, multi-functional supply systems have been widely applied. In daily life, air conditioners can achieve cooling / heating functions to meet users' comfort requirements. As people increasingly value their own comfort experience, floor heating systems with relatively higher comfort levels have gradually gained users' favor. Based on this, related technologies have proposed a waterless floor heating temperature and humidity independent control parallel system, including a compressor, a condenser, a four-way valve, a throttling device, a dehumidification circuit, and a floor circuit. The D port of the four-way valve is connected to the S port of the four-way valve through the compressor, the C port of the four-way valve is connected to the inlet of the throttling device through the condenser, and the outlet of the throttling device is respectively connected to the E port of the four-way valve through the dehumidification circuit and the floor circuit.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related technologies:

[0004] The related technologies can achieve multiple modes such as floor heating + fresh air working mode, rapid cooling + dehumidifying fresh air working mode, floor cooling + dehumidifying fresh air working mode, dehumidification + fresh air working mode, etc., but they cannot meet the heating + dehumidification requirements simultaneously. In the face of rainy weather in winter, it is difficult for this system to create a relatively comfortable indoor environment, and the actual user experience is poor.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0007] The embodiments of the present disclosure provide a control method, device, heat pump system, and computer-readable storage medium for a heat pump system, which can meet the dual requirements of heating and dehumidification simultaneously, so as to cope with various extreme environmental conditions and then create a relatively comfortable indoor environment, which is beneficial to optimizing the actual user experience.

[0008] In some embodiments, the heat pump system includes: a compressor; a four-way valve; an outdoor heat exchanger; an air conditioner heat exchanger; a floor heating capillary tube, which is arranged in parallel with the air conditioner heat exchanger; a first control valve, which is arranged on the refrigerant pipeline between the outdoor heat exchanger and the air conditioner heat exchanger; a second control valve, which is arranged on the refrigerant pipeline between the outdoor heat exchanger and the floor heating capillary tube; a third control valve, which is arranged on the refrigerant pipeline between the air conditioner heat exchanger and the four-way valve; a three-way valve, whose port A is communicated with the four-way valve, whose port B is communicated with the first end of the floor heating capillary tube, and whose port C is communicated with the second end of the floor heating capillary tube through a first bypass pipeline; a fourth control valve, which is arranged on a second bypass pipeline, the first end of the second bypass pipeline is communicated with the refrigerant pipeline between the four-way valve and the outdoor heat exchanger, and the second end of the second bypass pipeline is communicated with the first end of the floor heating capillary tube; a heating device, which is arranged corresponding to the air conditioner heat exchanger; the control method includes: when receiving a heating and dehumidifying instruction, determining the current heating demand; controlling the four-way valve to change direction so that the heat pump system operates in a refrigeration mode, controlling the first control valve and the third control valve to open, controlling the second control valve to close, and controlling the heating device to start; according to the current heating demand, controlling the working states of the fourth control valve and the three-way valve.

[0009] In some embodiments, the control device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above control method for the heat pump system when running the program instructions.

[0010] In some embodiments, the heat pump system includes: a compressor; a four-way valve; an outdoor heat exchanger; an air conditioner heat exchanger; a floor heating capillary tube, which is arranged in parallel with the air conditioner heat exchanger; a first control valve, which is arranged on the refrigerant pipeline between the outdoor heat exchanger and the air conditioner heat exchanger; a second control valve, which is arranged on the refrigerant pipeline between the outdoor heat exchanger and the floor heating capillary tube; a third control valve, which is arranged on the refrigerant pipeline between the air conditioner heat exchanger and the four-way valve; a three-way valve, whose port A is communicated with the four-way valve, whose port B is communicated with the first end of the floor heating capillary tube, and whose port C is communicated with the second end of the floor heating capillary tube through a first bypass pipeline; a fourth control valve, which is arranged on a second bypass pipeline, the first end of the second bypass pipeline is communicated with the refrigerant pipeline between the four-way valve and the outdoor heat exchanger, and the second end of the second bypass pipeline is communicated with the first end of the floor heating capillary tube; a heating device, which is arranged corresponding to the air conditioner heat exchanger; the above control device for the heat pump system is electrically connected to the four-way valve, the first control valve, the second control valve, the third control valve, the fourth control valve, the three-way valve and the heating device respectively.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are running, they are used to cause a computer to execute the above control method for the heat pump system.

[0012] The control method, device, heat pump system, and computer-readable storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] In the embodiments of the present disclosure, an air-conditioning heat exchanger and a floor heating capillary tube are arranged in parallel in the heat pump system, and a first bypass pipeline and a second bypass pipeline are respectively arranged at both ends of the floor heating capillary tube, and a heating device is arranged corresponding to the air-conditioning heat exchanger. On this basis, when a heating and dehumidification instruction is received, the embodiments of the present disclosure can synchronously confirm the current heating demand to determine whether it is necessary to conduct the branch where the floor heating is located to assist in heating. Then, the embodiments of the present disclosure can control the four-way valve to change the direction so that the heat pump system operates in the refrigeration mode, and open the first control valve and the third control valve. At this time, the refrigerant discharged from the compressor flows through the outdoor heat exchanger, the first control valve, the air-conditioning heat exchanger, the third control valve in sequence and then returns to the suction port of the compressor. By controlling the evaporation temperature of the air-conditioning heat exchanger to be below the dew point temperature, the embodiments of the present disclosure can use the branch where the air conditioner is located to achieve the purpose of indoor dehumidification. At the same time, the heating device is turned on to heat the dehumidified air to further achieve the purpose of heating and dehumidification. Then, the embodiments of the present disclosure selectively open the fourth control valve and the three-way valve based on the current heating demand, so that part of the refrigerant discharged from the compressor can be shunted to the floor heating capillary tube to utilize the branch where the floor heating is located to achieve the purpose of assisting in heating. Thus, the embodiments of the present disclosure can match the heating capacity of the system as needed and can simultaneously meet the dual demands of heating and dehumidification, so as to cope with various extreme environmental conditions and then create a relatively comfortable indoor environment, which is beneficial to optimizing the actual experience of users.

[0014] The above general description and the following description are only exemplary and explanatory and are not used to limit the present application. Description of the Drawings

[0015] One or more embodiments are exemplarily illustrated by the corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0016] Figure 1 is a schematic structural diagram of a heat pump system provided by an embodiment of the present disclosure;

[0017] Figure 2 is a schematic diagram of a control method for a heat pump system provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of another control method for a heat pump system provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another control method for a heat pump system provided by an embodiment of the present disclosure;

[0020] Figure 5 It is a schematic diagram of another control method for a heat pump system provided by an embodiment of the present disclosure;

[0021] Figure 6 It is a schematic diagram of a control device for a heat pump system provided by an embodiment of the present disclosure.

[0022] Reference numerals:

[0023] 10: Compressor; 20: Four-way valve; 30: Outdoor heat exchanger; 40: Air-conditioning heat exchanger; 50: Floor heating capillary; 61: First control valve; 62: Second control valve; 63: Third control valve; 64: Fourth control valve; 70: Three-way valve; 80: Heating device; 90: Indoor fan; 101: First bypass pipeline; 102: Second bypass pipeline; 200: Control device for heat pump system; 201: Processor; 202: Memory; 203: Communication interface; 204: Bus. Detailed implementation manners

[0024] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and illustration purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner.

[0025] In the embodiments of the present disclosure, terms such as "first" and "second" in the description and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0026] Unless otherwise specified, the term "plurality" means two or more.

[0027] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0028] The term "and / or" is an associative relationship describing an object and indicates that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0029] The term "corresponding" may refer to an association relationship or a binding relationship. That A corresponds to B means that there is an association relationship or a binding relationship between A and B.

[0030] Combined with Figure 1 As shown, an embodiment of the present disclosure provides a heat pump system, including: a compressor 10, a four-way valve 20, an outdoor heat exchanger 30, an air-conditioning heat exchanger 40, a floor heating capillary 50, a first control valve 61, a second control valve 62, a third control valve 63, a fourth control valve 64, a three-way valve 70, and a heating device 80. Among them, the floor heating capillary 50 is arranged in parallel with the air-conditioning heat exchanger 40. The first control valve 61 is arranged on the refrigerant pipeline between the outdoor heat exchanger 30 and the air-conditioning heat exchanger 40. The second control valve 62 is arranged on the refrigerant pipeline between the outdoor heat exchanger 30 and the floor heating capillary 50. The third control valve 63 is arranged on the refrigerant pipeline between the air-conditioning heat exchanger 40 and the four-way valve 20. The three-way valve 70 has its port A connected to the four-way valve 20, its port B connected to the first end of the floor heating capillary 50, and its port C connected to the second end of the floor heating capillary 50 through a first bypass pipeline 101. The fourth control valve 64 is arranged on a second bypass pipeline 102. The first end of the second bypass pipeline 102 is connected to the refrigerant pipeline between the four-way valve 20 and the outdoor heat exchanger 40, and the second end of the second bypass pipeline 102 is connected to the first end of the floor heating capillary 50. The heating device 80 is arranged corresponding to the air-conditioning heat exchanger 40.

[0031] Using the heat pump system provided by the embodiment of the present disclosure, the air-conditioning heat exchanger 40 and the floor heating capillary 50 are arranged in parallel in the heat pump system, and a first bypass pipeline 101 and a second bypass pipeline 102 are respectively arranged at both ends of the floor heating capillary 50, so that part of the refrigerant discharged by the compressor 10 can be shunted to the floor heating capillary 50 to achieve the purpose of auxiliary heating by using the branch where the floor heating is located. At the same time, the embodiment of the present disclosure can turn on the first control valve 61 and the third control valve 63 to conduct the branch where the air conditioner is located, and control the evaporation temperature of the air-conditioning heat exchanger 40 to drop below the dew point temperature to achieve the purpose of indoor dehumidification. In addition, a heating device 80 is arranged corresponding to the air-conditioning heat exchanger 40, so that the heated air after dehumidification can be heated by the heating device 80 to ensure that the branch where the air conditioner is located can meet the requirements of temperature rise and dehumidification. Thus, the heat pump system can simultaneously meet the dual requirements of heating and dehumidification, so as to cope with various extreme environmental conditions and then create a relatively comfortable indoor environment, which is beneficial to optimizing the actual experience of users.

[0032] Optionally, the four-way valve 20 has an E port, an S port, a C port, and a D port. The E port is communicated with the suction port of the compressor 10, the C port is communicated with the discharge port of the compressor 10, the S port is communicated with the outdoor heat exchanger 30, and the D port is respectively communicated with the third control valve 63 and the A port of the three-way valve 70. In this way, when the four-way valve 20 is controlled to connect the S port and the C port and connect the E port and the D port, the heat pump system can operate in the cooling mode; and when the four-way valve 20 is controlled to connect the S port and the E port and connect the C port and the D port, the heat pump system can operate in the heating mode, which is beneficial for the heat pump system to cope with various extreme environmental conditions and switch to the appropriate operating mode.

[0033] Optionally, the heat pump system further includes an indoor fan 90. The indoor fan 90 is arranged corresponding to the air conditioner heat exchanger 40. In this way, the indoor air circulation can be driven by operating the indoor fan 90, which is convenient for quickly separating the moisture in the indoor high-humidity air, thereby ensuring the dehumidification effect of the air conditioner heat exchanger 40.

[0034] Optionally, along the air flow direction flowing through the air conditioner heat exchanger 40, the indoor fan 90 is located upstream of the air conditioner heat exchanger 40, and the heating device 80 is located downstream of the air conditioner heat exchanger 40. In this way, under the action of the indoor fan 90, the indoor high-humidity air continuously flows through the indoor heat exchanger 40 for cooling, and the moisture in it gradually separates out on the surface of the indoor heat exchanger 40, thereby meeting the indoor dehumidification requirement. Then the cooled and dehumidified air is gradually reheated under the action of the heating device 80, thereby meeting the indoor heating requirement.

[0035] Optionally, the heat pump system further includes a control device 200 for the heat pump system. The control device 200 for the heat pump system is electrically connected to the four-way valve 20, the first control valve 61, the second control valve 62, the third control valve 63, the fourth control valve 64, the three-way valve 70, and the heating device 80 respectively. In this way, the embodiments of the present disclosure can execute corresponding control methods through the control device 700, and further control the heat pump system to automatically switch the pipeline connection state to simultaneously meet the dual requirements of heating and dehumidification.

[0036] Based on the above heat pump system, as shown in Figure 2 the embodiments of the present disclosure provide a control method for a heat pump system, including:

[0037] S101, when receiving a heating and dehumidification instruction, the control device determines the current heating requirement.

[0038] S102, the control device controls the four-way valve to reverse so that the heat pump system operates in the cooling mode, controls the first control valve and the third control valve to open, controls the second control valve to close, and controls the heating device to start.

[0039] S103, the control device controls the working states of the fourth control valve and the three-way valve according to the current heating demand.

[0040] When the heating and dehumidification instruction is received, by using the control method for the heat pump system provided by the embodiment of the present disclosure, the embodiment of the present disclosure can synchronously confirm the current heating demand to judge whether it is necessary to turn on the branch where the floor heating is located to assist in heating. Then, the embodiment of the present disclosure can control the four-way valve to change direction so that the heat pump system operates in the refrigeration mode, and turn on the first control valve and the third control valve. At this time, the refrigerant discharged from the compressor flows through the outdoor heat exchanger, the first control valve, the air-conditioning heat exchanger, the third control valve in sequence and then returns to the suction port of the compressor. By controlling the evaporation temperature of the air-conditioning heat exchanger to drop below the dew point temperature, the embodiment of the present disclosure can utilize the branch where the air conditioner is located to achieve the purpose of indoor dehumidification. At the same time, the heating device is turned on to heat the dehumidified air, further achieving the purpose of heating and dehumidifying. Then, the embodiment of the present disclosure selectively opens the fourth control valve and the three-way valve based on the current heating demand, so that part of the refrigerant discharged from the compressor can be diverted to the floor heating capillary, so as to utilize the branch where the floor heating is located to achieve the purpose of auxiliary heating. Thus, the embodiment of the present disclosure can match the heating capacity of the system as needed and can simultaneously meet the dual demands of heating and dehumidification, so as to cope with various extreme environmental conditions and then create a relatively comfortable indoor environment, which is beneficial to optimizing the actual experience of users.

[0041] Optionally, when the heating and dehumidification instruction is received, the control device determines the current heating demand, including: when the heating and dehumidification instruction is received, the control device obtains the user-set temperature; when the user-set temperature is greater than the set temperature threshold, the control device determines that the current heating demand is the first heating demand; or, when the user-set temperature is less than or equal to the set temperature threshold, the control device determines that the current heating demand is the second heating demand.

[0042] In this way, when the heating and dehumidification instruction is received, the embodiment of the present disclosure can combine the user-set temperature to confirm the current heating demand to judge whether it is necessary to turn on the branch where the floor heating is located to assist in heating. When the user-set temperature is greater than the set temperature threshold, it indicates that the user prefers a high-temperature comfortable environment. At this time, the heating capacity corresponding to the heat pump system is relatively large, and the current heating demand can be determined as the first heating demand. When the user-set temperature is less than or equal to the set temperature threshold, it indicates that the user prefers a low-temperature comfortable environment. At this time, the heating capacity corresponding to the heat pump system is relatively small, and the current heating demand can be determined as the second heating demand.

[0043] Optionally, the set temperature threshold can be set in combination with the location and / or the current season. Preferably, the set temperature threshold can be set to 18°C to judge whether it is necessary to turn on the branch where the floor heating is located to assist in heating. The set temperature threshold can also be adjusted according to the actual needs of the user, and can also be set to other arbitrary reasonable values such as 20°C or 25°C.

[0044] Optionally, upon receiving a heating and dehumidifying instruction, the control device determines the current heating demand, including: upon receiving a heating and dehumidifying instruction, the control device obtains the outdoor ambient temperature; when the outdoor ambient temperature is less than the ambient temperature threshold, the control device determines that the current heating demand is the first heating demand; or, when the outdoor ambient temperature is greater than or equal to the ambient temperature threshold, the control device determines that the current heating demand is the second heating demand.

[0045] In this way, when a heating and dehumidifying instruction is received, the embodiments of the present disclosure can combine the outdoor ambient temperature to confirm the current heating demand to determine whether to turn on the branch where the floor heating is located to assist in heating. When the outdoor ambient temperature is less than the ambient temperature threshold, it indicates that the indoor environment is at a relatively low temperature affected by the outdoor, and at this time, the heating capacity corresponding to the heat pump system is relatively large, and the current heating demand can be determined as the first heating demand. When the outdoor ambient temperature is greater than or equal to the ambient temperature threshold, it indicates that the indoor environment is at a medium-low temperature affected by the outdoor, and at this time, the heating capacity corresponding to the heat pump system is relatively small, and the current heating demand can be determined as the second heating demand.

[0046] Optionally, the ambient temperature threshold can be set in combination with the location and / or the current season. Preferably, the ambient temperature threshold can be set to 2°C to determine whether to turn on the branch where the floor heating is located to assist in heating. The ambient temperature threshold can also be adjusted according to the actual needs of the user and can also be set to other reasonable values such as 5°C or 8°C.

[0047] Optionally, the control device controls the working states of the fourth control valve and the three-way valve according to the current heating demand, including: when the current heating demand represents the first heating demand, the control device controls the fourth control valve to open and controls the three-way valve to connect the A port and the C port; or, when the current heating demand represents the second heating demand, the control device controls the fourth control valve to close and controls the three-way valve to close. Among them, the heating capacity corresponding to the first heating demand is greater than the heating capacity corresponding to the second heating demand.

[0048] In this way, when a heating and dehumidification instruction is received, the embodiments of the present disclosure can synchronously confirm the current heating demand to determine whether it is necessary to turn on the branch where the floor heating is located to assist in heating. When the current heating demand represents a first heating demand with a relatively large heating capacity, the embodiments of the present disclosure can control the fourth control valve to open and control the three-way valve to connect the A port and the C port, thereby turning on the branch where the floor heating is located. At this time, a part of the refrigerant discharged from the compressor is diverted through the second bypass pipeline to the floor heating capillary tube, and radiant heat dissipation is achieved through the floor heating capillary tube. Then, the refrigerant flowing out of the floor heating capillary tube reaches the C port of the three-way valve through the first bypass pipeline and finally flows back to the suction port of the compressor. Thus, the purpose of auxiliary heating can be achieved by using the branch where the floor heating is located to match the first heating demand. When the current heating demand represents a second heating demand with a relatively small heating capacity, the embodiments of the present disclosure can control the fourth control valve to close and control the three-way valve to close, thereby cutting off the branch where the floor heating is located. At this time, all the refrigerant discharged from the compressor flows through the outdoor heat exchanger, the first control valve, the air conditioner heat exchanger, the third control valve in sequence and then returns to the suction port of the compressor. While achieving the purpose of indoor dehumidification through the air conditioner heat exchanger, the heating device can be used to heat the dehumidified air, thereby meeting the second heating demand.

[0049] Based on the above heat pump system, as shown in Figure 3 the embodiments of the present disclosure provide another control method for a heat pump system, including:

[0050] S201. When a heating and dehumidification instruction is received, the control device determines the current heating demand.

[0051] S202. The control device controls the four-way valve to reverse to make the heat pump system operate in the cooling mode, controls the first control valve and the third control valve to open, controls the second control valve to close, and controls the heating device to start.

[0052] S203. When the current heating demand represents a first heating demand, the control device controls the fourth control valve to open and controls the three-way valve to connect the A port and the C port.

[0053] S204. The control device continuously obtains the real-time floor temperature.

[0054] S205. The control device adjusts the heating parameters of the heating device according to the real-time floor temperature. Or,

[0055] S206. When the current heating demand represents a second heating demand, the control device controls the fourth control valve to close and controls the three-way valve to close.

[0056] When the control method for the heat pump system provided by the embodiments of the present disclosure is adopted and a heating and dehumidification instruction is received, the embodiments of the present disclosure can synchronously confirm the current heating demand to determine whether it is necessary to turn on the branch where the floor heating is located to assist in heating. When the current heating demand represents the second heating demand with relatively small heating capacity, the embodiments of the present disclosure can control the fourth control valve to close and control the three-way valve to close, thereby isolating the branch where the floor heating is located. At this time, all the refrigerant discharged from the compressor flows through the outdoor heat exchanger, the first control valve, the air conditioner heat exchanger, the third control valve in sequence and then returns to the suction port of the compressor. While achieving the purpose of indoor dehumidification through the air conditioner heat exchanger, the heating device can be used to heat the dehumidified air, so as to meet the second heating demand. When the current heating demand represents the first heating demand with relatively large heating capacity, the embodiments of the present disclosure can control the fourth control valve to open and control the three-way valve to connect the A port and the C port, thereby turning on the branch where the floor heating is located. At this time, a part of the refrigerant discharged from the compressor is shunted to the floor heating capillary through the second bypass pipeline, and radiation heat dissipation is achieved through the floor heating capillary. Then the refrigerant flowing out of the floor heating capillary reaches the C port of the three-way valve through the first bypass pipeline and finally flows back to the suction port of the compressor. Thus, the purpose of auxiliary heating can be achieved by using the branch where the floor heating is located to match the first heating demand. In addition, while the floor heating capillary radiates heat, the heating device operates synchronously, which is beneficial to uniform heating of the upper and lower spaces in the room. During this period, considering that the floor heating capillary requires a certain preheating duration at the initial stage of operation, the embodiments of the present disclosure can continuously obtain the real-time floor temperature to determine whether the floor heating capillary fully exerts its heating capacity. Then the embodiments of the present disclosure dynamically adjust the heating parameters of the heating device accordingly, so as to ensure stable heating of the heat pump system throughout the process and improve the thermal comfort of indoor users.

[0057] Optionally, the heating parameters of the heating device include the heating power and / or heating duration of the heating device. In this way, the operating state of the heating device can be reasonably regulated based on the above heating parameters to generate a suitable heating effect, so as to coordinate with the floor heating radiation heat dissipation effect, which is beneficial to ensuring stable heating of the heat pump system throughout the process.

[0058] Optionally, the heating parameters of the heating device are negatively correlated with the real-time floor temperature. In this way, during the heating and dehumidification process of the heat pump system, as the real-time floor temperature becomes higher and higher, it indicates that the floor heating capillary is gradually exerting its complete heating capacity. At this time, the heating parameters of the heating device can be appropriately reduced, such as reducing the heating power and / or heating duration. At this time, the heat pump system gradually reduces the heating proportion of the heating device and instead uses the floor heating capillary for efficient radiation heating, which is beneficial to improving the uniformity of the indoor temperature and better ensuring the user comfort experience.

[0059] Based on the above heat pump system, as shown in Figure 4 the embodiments of the present disclosure provide another control method for the heat pump system, including:

[0060] S301. When receiving the heating and dehumidifying instruction, the control device determines the current heating demand.

[0061] S302. The control device controls the four-way valve to change direction so that the heat pump system operates in the cooling mode, controls the first control valve and the third control valve to open, controls the second control valve to close, and controls the heating device to start.

[0062] S303. The control device controls the working states of the fourth control valve and the three-way valve according to the current heating demand.

[0063] S304. The control device continuously obtains the real-time indoor temperature and / or the real-time indoor humidity.

[0064] S305. The control device adjusts the operating parameters of the heat pump system according to the real-time indoor temperature and / or the real-time indoor humidity.

[0065] By using the control method for the heat pump system provided by the embodiments of the present disclosure, during the heating and dehumidifying process of the heat pump system, the embodiments of the present disclosure can continuously monitor the real-time indoor temperature and / or the real-time indoor humidity to determine whether the real-time indoor temperature and the real-time indoor humidity approach their corresponding set values. Then, the embodiments of the present disclosure can regularly adjust the operating parameters of the heat pump system accordingly to dynamically optimize the air-conditioning cooling and dehumidifying capacity and the floor heating heating capacity in combination with the temperature and humidity compliance situation, so as to reasonably coordinate the dehumidifying effect and the heating effect of the heat pump system, which is beneficial to further improving the working energy efficiency of the heat pump system to better ensure the comfortable experience of users.

[0066] Optionally, the operating parameters of the heat pump system include some or all of the operating power of the compressor, the opening degree of the first control valve, the opening degree of the third control valve, the opening degree of the fourth control valve, the operating parameters of the heating device, and the rotational speed of the indoor fan.

[0067] In this way, during the heating and dehumidifying process of the heat pump system, the operating state of the heat pump system can be reasonably regulated based on the above operating parameters, and its air-conditioning cooling and dehumidifying capacity and the floor heating heating capacity can be optimized, so as to reasonably coordinate the dehumidifying effect and the heating effect of the heat pump system, which is beneficial to improving the working energy efficiency of the heat pump system.

[0068] Optionally, the control device adjusts the operating parameters of the heat pump system according to the real-time indoor temperature, including: the control device adjusts the operating parameters of the heat pump system according to the difference between the user-set temperature and the real-time indoor temperature according to the PID algorithm. In this way, the embodiments of the present disclosure can judge the indoor temperature compliance situation based on the difference between the user-set temperature and the real-time indoor temperature, and then can use the PID algorithm to dynamically adjust some or all of the above operating parameters of the heat pump system, which is beneficial to optimizing the air-conditioning cooling capacity and the floor heating heating capacity to ensure that the heating effect of the heat pump system is appropriate.

[0069] Optionally, the control device adjusts the operating parameters of the heat pump system according to the indoor real-time humidity, including: the control device adjusts the operating parameters of the heat pump system according to the difference between the indoor real-time humidity and the user-set humidity according to the PID algorithm. In this way, the embodiments of the present disclosure can judge whether the indoor humidity meets the standard based on the difference between the indoor real-time humidity and the user-set humidity, and then can use the PID algorithm to dynamically adjust some or all of the above operating parameters of the heat pump system, which is beneficial to optimizing the air-conditioning dehumidification ability to ensure that the dehumidification effect of the heat pump system is appropriate.

[0070] Further, after the control device continuously obtains the indoor real-time temperature and / or the indoor real-time humidity, it further includes: when the indoor real-time temperature meets the heating temperature-reaching condition and the indoor real-time humidity does not meet the dehumidification completion condition, reducing the opening degree of the first control valve, and / or reducing the opening degree of the fourth control valve.

[0071] In this way, if the indoor real-time temperature meets the heating temperature-reaching condition while the indoor real-time humidity does not meet the dehumidification completion condition, it indicates that the indoor temperature reaches the standard in advance. In order to promote the rapid attainment of the indoor humidity standard, the embodiments of the present disclosure can appropriately reduce the opening degree of the first control valve, thereby enhancing the air-conditioning dehumidification ability and facilitating the rapid dehumidification of the heat pump system. In addition, if the floor heating capillary tube participates in the operation, the opening degree of the fourth control valve can be appropriately reduced to reduce the refrigerant volume flowing through the branch where the floor heating is located, thereby weakening the floor heating capacity and facilitating the improvement of the energy-saving effect of the heat pump system. And at this time, the refrigerant volume flowing through the branch where the air conditioner is located relatively increases, thereby enhancing the air-conditioning dehumidification ability and facilitating the efficient dehumidification of the heat pump system.

[0072] Further, after the control device continuously obtains the indoor real-time temperature and / or the indoor real-time humidity, it further includes: when the indoor real-time humidity meets the dehumidification completion condition and the indoor real-time temperature does not meet the heating temperature-reaching condition, increasing the opening degree of the first control valve, and / or increasing the opening degree of the fourth control valve.

[0073] In this way, if the indoor real-time humidity meets the dehumidification completion condition while the indoor real-time temperature does not meet the heating temperature-reaching condition, it indicates that the indoor humidity reaches the standard in advance. In order to promote the rapid attainment of the indoor temperature standard, the embodiments of the present disclosure can appropriately increase the opening degree of the first control valve, thereby weakening the air-conditioning refrigeration ability, facilitating the rapid heating of the heat pump system, and improving the energy-saving effect of the heat pump system. In addition, if the floor heating capillary tube participates in the operation, the opening degree of the fourth control valve can be appropriately increased to increase the refrigerant volume flowing through the branch where the floor heating is located, thereby enhancing the floor heating capacity and facilitating the efficient heating of the heat pump system. And at this time, the refrigerant volume flowing through the branch where the air conditioner is located relatively decreases, thereby weakening the air-conditioning refrigeration ability and facilitating the heat pump system to achieve rapid heating and energy-saving operation.

[0074] Optionally, the control device determines that the indoor real-time temperature meets the heating temperature reaching condition in the following manner, including: when the difference between the user-set temperature and the indoor real-time temperature is less than or equal to the temperature difference threshold, it is determined that the indoor real-time temperature meets the heating temperature reaching condition. In this way, the embodiments of the present disclosure can determine whether the current meets the heating temperature reaching condition through the temperature difference threshold. During the heating and dehumidifying process of the heat pump system, if it is detected that the difference between the user-set temperature and the indoor real-time temperature is less than or equal to the temperature difference threshold, it indicates that the indoor real-time temperature has approached the user-set temperature. At this time, the indoor temperature reaches the standard and the overall environment is relatively comfortable, so it is determined that it meets the heating temperature reaching condition, and the operation state of the heat pump system can be optimized accordingly.

[0075] Optionally, the control device determines that the indoor real-time humidity meets the dehumidification completion condition in the following manner, including: when the difference between the indoor real-time humidity and the user-set humidity is less than or equal to the humidity difference threshold, it is determined that the indoor real-time humidity meets the dehumidification completion condition. In this way, the embodiments of the present disclosure can determine whether the current meets the dehumidification completion condition through the humidity difference threshold. During the heating and dehumidifying process of the heat pump system, if it is detected that the difference between the indoor real-time humidity and the user-set humidity is less than or equal to the humidity difference threshold, it indicates that the indoor real-time humidity has approached the user-set humidity. At this time, the indoor humidity reaches the standard and the overall environment is relatively comfortable, so it is determined that it meets the dehumidification completion condition, and the operation state of the heat pump system can be optimized accordingly.

[0076] Based on the above heat pump system, as shown in Figure 5 the embodiments of the present disclosure provide another control method for a heat pump system, including:

[0077] S401, when receiving a heating and dehumidifying instruction, the control device determines the current heating demand.

[0078] S402, the control device controls the four-way valve to change direction so that the heat pump system operates in the cooling mode, controls the first control valve and the third control valve to open, controls the second control valve to close, and controls the heating device to start.

[0079] S403, the control device controls the working states of the fourth control valve and the three-way valve according to the current heating demand.

[0080] S404, the control device continuously obtains the indoor real-time humidity.

[0081] S405, when the indoor real-time humidity meets the dehumidification completion condition, the control device controls the heat pump system to operate in a preset heating mode and controls the heating device to turn off.

[0082] By using the control method for a heat pump system provided in the embodiments of the present disclosure, during the heating and dehumidifying process of the heat pump system, the embodiments of the present disclosure can continuously monitor the real-time indoor humidity to determine whether the real-time indoor humidity approaches its humidity set value. When it is determined that the real-time indoor humidity meets the dehumidification completion condition, the embodiments of the present disclosure can immediately control the heat pump system to switch to a preset heating mode, thereby being able to eliminate the temperature drop phenomenon that occurs in the air-conditioning heat exchanger during the dehumidification process, and simultaneously control the heating device to turn off, thereby reducing the operating energy consumption of the heat pump system and being beneficial to significantly improving its energy-saving effect during the subsequent heating process of the heat pump system.

[0083] Optionally, the control device determines that the real-time indoor humidity meets the dehumidification completion condition in the following manner, including: when the difference between the real-time indoor humidity and the user-set humidity is less than or equal to the humidity difference threshold, it is determined that the real-time indoor humidity meets the dehumidification completion condition. In this way, the embodiments of the present disclosure can use the humidity difference threshold to determine whether the dehumidification completion condition is currently met. During the heating and dehumidifying process of the heat pump system, if it is detected that the difference between the real-time indoor humidity and the user-set humidity is less than or equal to the humidity difference threshold, it indicates that the real-time indoor humidity has approached the user-set humidity. At this time, the indoor humidity meets the standard and the overall environment is relatively comfortable, so it is determined that it meets the dehumidification completion condition, and the operating state of the heat pump system can be optimized accordingly.

[0084] Optionally, the control device controls the heat pump system to operate in a preset heating mode, including: the control device controls the four-way valve to change direction so that the heat pump system operates in the heating mode, and controls the first control valve and the third control valve to open; and / or, the control device controls the four-way valve to change direction so that the heat pump system operates in the heating mode, controls the second control valve to open, controls the three-way valve to connect the A port and the B port, and controls the fourth control valve to close.

[0085] In this way, on the one hand, the embodiments of the present disclosure can control the four-way valve to change direction so that the heat pump system operates in the heating mode, and control the first control valve and the third control valve to open, thereby conducting the branch where the air conditioner is located to utilize the convective heat dissipation of the air-conditioning heat exchanger, so as to achieve rapid heating of the heat pump system. On the other hand, the present disclosure can control the four-way valve to change direction so that the heat pump system operates in the heating mode, control the second control valve to open, control the three-way valve to connect the A port and the B port, and control the fourth control valve to close, thereby conducting the branch where the floor heating is located to utilize the radiant heat dissipation of the floor heating capillary tube, so as to achieve uniform heating of the heat pump system.

[0086] Further, the control device controls the heat pump system to operate in a preset heating mode, including: when the real-time floor temperature is less than or equal to the preset floor temperature, the control device controls the four-way valve to change its direction so that the heat pump system operates in the heating mode, and controls the first control valve and the third control valve to open; or, when the real-time floor temperature is greater than the preset floor temperature, the control device controls the four-way valve to change its direction so that the heat pump system operates in the heating mode, controls the second control valve to open, controls the three-way valve to connect the A port and the B port, and controls the fourth control valve to close.

[0087] In this way, the embodiments of the present disclosure can combine the real-time floor temperature to control the heat pump system to enter the most suitable heating mode. When the real-time floor temperature is less than or equal to the preset floor temperature, it indicates that the heat pump system fails to fully preheat the floor heating capillary tube during the previous heating and dehumidification process. For example, when corresponding to the second heating demand, the floor heating capillary tube does not participate in the heating operation. At this time, the real-time floor temperature is relatively low, and the radiation heat dissipation effect of the floor heating capillary tube is poor. Therefore, the embodiments of the present disclosure can control the four-way valve to change its direction so that the heat pump system operates in the heating mode, and control the first control valve and the third control valve to open, so as to conduct the branch where the air conditioner is located, and utilize the convective heat dissipation of the air conditioner heat exchanger, thereby realizing the rapid heating of the heat pump system.

[0088] When the real-time floor temperature is greater than the preset floor temperature, it indicates that the heat pump system has fully preheated the floor heating capillary tube during the previous heating and dehumidification process. For example, when corresponding to the first heating demand, the floor heating capillary tube is used for auxiliary heating. At this time, the real-time floor temperature is relatively appropriate, and the radiation heat dissipation effect of the floor heating capillary tube is relatively good. Therefore, the embodiments of the present disclosure can control the four-way valve to change its direction so that the heat pump system operates in the heating mode, control the second control valve to open, control the three-way valve to connect the A port and the B port, and control the fourth control valve to close, so as to conduct the branch where the floor heating is located, and utilize the radiation heat dissipation of the floor heating capillary tube, thereby realizing the uniform heating of the heat pump system. Thus, the embodiments of the present disclosure can select appropriate heat exchange components to participate in the subsequent heating operation, so that the heat pump system enters the optimal heating mode, which is beneficial to optimizing the heating effect of the heat pump system and better ensuring the user's comfortable experience.

[0089] Optionally, the preset floor temperature can be set in combination with the real-time indoor temperature. Preferably, the preset floor temperature can be set to 25 °C to determine which heating mode the heat pump system switches to. The preset floor temperature can also be adjusted according to the actual needs of the user, and can also be set to other arbitrary reasonable values such as 22 °C or 28 °C.

[0090] Combined with Figure 6As shown in the figure, an embodiment of the present disclosure provides a control device 200 for a heat pump system, which includes a processor 201 and a memory 202. Optionally, the control device 200 may further include a communication interface 203 and a bus 204. Among them, the processor 201, the communication interface 203, and the memory 202 can complete mutual communication through the bus 204. The communication interface 203 can be used for information transmission. The processor 201 can call the logical instructions in the memory 202 to execute the control method for the heat pump system in the above embodiment.

[0091] In addition, when the logical instructions in the above-mentioned memory 202 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0092] As a computer-readable storage medium, the memory 202 can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor 201 executes functional applications and data processing by running the program instructions / modules stored in the memory 202, that is, implements the control method for the heat pump system in the above embodiment.

[0093] The memory 202 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 202 may include a high-speed random access memory and may also include a non-volatile memory.

[0094] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are set to execute the above-mentioned control method for the heat pump system.

[0095] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, such as: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, etc., which are various media that can store program codes.

[0096] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terms used in this application are only for describing the embodiments and do not limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations of one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups of these. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or device comprising the element. Herein, each embodiment may focus on the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method parts disclosed in the embodiments, the relevant parts may refer to the description of the method parts.

[0097] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person may use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0098] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms. The units described as separate components can be or can not be physically separated. The components displayed as units can be or can not be physical units, that is, they can be located in one place or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in the embodiments of the present disclosure, the various functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0099] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the blocks can occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks can also occur in a different order than that disclosed in the description. Sometimes, there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. Each block in the block diagram and / or flowchart, as well as combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a heat pump system, characterized in that: The heat pump system includes: a compressor; a four-way valve; an outdoor heat exchanger; an air-conditioning heat exchanger; a floor heating capillary tube, which is arranged in parallel with the air-conditioning heat exchanger; a first control valve, which is arranged in the refrigerant pipeline between the outdoor heat exchanger and the air-conditioning heat exchanger; a second control valve, which is arranged in the refrigerant pipeline between the outdoor heat exchanger and the floor heating capillary tube; a third control valve, which is arranged in the refrigerant pipeline between the air-conditioning heat exchanger and the four-way valve; a three-way valve, whose A port is connected to the four-way valve, whose B port is connected to the first end of the floor heating capillary tube, and whose C port is connected to the second end of the floor heating capillary tube through the first bypass pipeline; a fourth control valve, which is arranged in the second bypass pipeline, whose first end is connected to the refrigerant pipeline between the four-way valve and the outdoor heat exchanger, and whose second end is connected to the first end of the floor heating capillary tube; a heating device, which is arranged corresponding to the air-conditioning heat exchanger; and the control method includes: When receiving a heating and dehumidification instruction, determine the current heating demand; Control the reversal of the four-way valve to make the heat pump system run in cooling mode, control the first control valve and the third control valve to open, control the second control valve to close, and control the heating device to start; According to the current heating demand, the working states of the fourth control valve and the three-way valve are controlled.

2. The control method according to claim 1, characterized in that: When receiving the heating and dehumidification command, determine the current heating demand, including: When receiving the heating and dehumidification command, obtain the user set temperature; When the user-set temperature is greater than the set temperature threshold, the current heating demand is determined to be the first heating demand; or, When the user-set temperature is less than or equal to the set temperature threshold, the current heating demand is determined to be the second heating demand.

3. The control method according to claim 1, characterized in that: According to the current heating demand, the working status of the fourth control valve and the three-way valve is controlled, including: When the current heating demand indicates the first heating demand, the fourth control valve is controlled to open, and the three-way valve is controlled to connect the A port and the C port; or, When the current heating demand indicates the second heating demand, the fourth control valve is controlled to be closed, and the three-way valve is controlled to be closed; The heating amount corresponding to the first heating demand is greater than the heating amount corresponding to the second heating demand.

4. The control method according to claim 3, characterized in that: When the current heating demand indicates the first heating demand, after controlling the fourth control valve to open and controlling the three-way valve to connect the A port and the C port, the method further includes: Continuously obtain real-time floor temperature; Adjust the heating parameters of the heating device according to the real-time temperature of the floor.

5. The control method according to claim 1, characterized in that: After controlling the working states of the fourth control valve and the three-way valve according to the current heating demand, the following steps are also included: Continuously obtain real-time indoor temperature and / or real-time indoor humidity; The operating parameters of the heat pump system are adjusted according to the real-time indoor temperature and / or the real-time indoor humidity.

6. The control method according to any one of claims 1 to 5, characterized in that: After controlling the working states of the fourth control valve and the three-way valve according to the current heating demand, the following steps are also included: Continuously obtain real-time indoor humidity; When the real-time indoor humidity meets the dehumidification completion conditions, the heat pump system is controlled to run the preset heating mode and the heating device is controlled to be turned off.

7. The control method according to claim 6, characterized in that: Control the heat pump system to run preset heating modes, including: Control the four-way valve to switch so that the heat pump system operates in heating mode, and control the first control valve and the third control valve to open; and / or, The four-way valve is controlled to switch to make the heat pump system run in heating mode, the second control valve is controlled to open, the three-way valve is controlled to connect port A and port B, and the fourth control valve is controlled to close.

8. A control device for a heat pump system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a heat pump system according to any one of claims 1 to 7 when running the program instructions.

9. A heat pump system, characterized in that: include: compressor; Four-way valve; Outdoor heat exchanger; Air conditioning heat exchanger; The floor heating capillary tube is set in parallel with the air conditioning heat exchanger; A first control valve is provided in the refrigerant pipeline between the outdoor heat exchanger and the air conditioner heat exchanger; A second control valve is provided in the refrigerant pipeline between the outdoor heat exchanger and the floor heating capillary tube; A third control valve is provided in the refrigerant pipeline between the air conditioner heat exchanger and the four-way valve; A three-way valve, whose A port is connected to the four-way valve, whose B port is connected to the first end of the floor heating capillary tube, and whose C port is connected to the second end of the floor heating capillary tube through a first bypass line; A fourth control valve is provided in the second bypass pipeline, a first end of the second bypass pipeline is connected to the refrigerant pipeline between the four-way valve and the outdoor heat exchanger, and a second end of the second bypass pipeline is connected to the first end of the floor heating capillary tube; A heating device, corresponding to the air conditioning heat exchanger setting; The control device for a heat pump system as claimed in claim 8 is electrically connected to the four-way valve, the first control valve, the second control valve, the third control valve, the fourth control valve, the three-way valve and the heating device, respectively.

10. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for a heat pump system according to any one of claims 1 to 7.

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