Refrigerant heat dissipation module, heat pump system and air conditioner

Abstract

The utility model discloses a refrigerant heat dissipation module, a heat pump system and an air conditioner, and relates to the technical field of heat pumps, the refrigerant heat dissipation module comprises a reversing valve, a heat dissipation pipe and a throttling device, the heat dissipation pipe and the throttling device are connected in sequence, the heat dissipation pipe is arranged to be in heat exchange connection with a heating element, and the reversing valve is provided with a first valve port, a second valve port, a third valve port and a fourth valve port; the first valve port and the fourth valve port are communicated with different positions of a refrigerant circulation loop in the heat pump system, the second valve port is communicated with the radiating pipe, and the third valve port is communicated with the throttling device; the reversing valve has a first operation state and a second operation state, in the first operation state, the first valve port is communicated with the third valve port, the second valve port is communicated with the fourth valve port, in the second operation state, the first valve port is communicated with the second valve port, and the third valve port is communicated with the fourth valve port. The utility model aims to reduce the condensation risk of the heating element under different working conditions and improve the energy efficiency of the system at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, and particularly relates to a refrigerant heat dissipation module, a heat pump system and an air conditioner. Background Art

[0002] In household appliances equipped with a heat pump system, many are provided with a refrigerant heat dissipation module to dissipate heat from heat-generating components such as severely heated electrical control components. The electronic expansion valve that needs to throttle the flowing refrigerant in the heat pump system is generally arranged on one side of the refrigerant heat dissipation module. When the heat pump system switches between different modes such as heating and cooling, the flow direction of the refrigerant changes. The electronic expansion valve can only throttle the refrigerant flowing out after heat dissipation, and cannot throttle the refrigerant before heat dissipation, otherwise the refrigerant used for heat dissipation will be too cold and cause condensation of the electrical control components. However, this will cause the electronic expansion valve to be unable to throttle the flowing refrigerant in some working condition modes, greatly limiting the low-frequency energy-saving effect of the system in some working condition modes. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a refrigerant heat dissipation module, a heat pump system and an air conditioner, aiming to reduce the condensation risk of heat-generating components under different working conditions and improve the energy efficiency of the system at the same time.

[0004] To achieve the above purpose, a refrigerant heat dissipation module proposed by the utility model includes a reversing valve, a heat dissipation pipe and a throttling device connected in sequence, and the heat dissipation pipe is arranged to be heat-exchanged and connected with a heat-generating component;

[0005] The reversing valve is provided with a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port and the fourth valve port are arranged to communicate with different positions of the refrigerant circulation circuit in the heat pump system. The second valve port communicates with the heat dissipation pipe, and the third valve port communicates with the throttling device;

[0006] The reversing valve has a first operating state and a second operating state. In the first operating state, the first valve port communicates with the third valve port, and the second valve port communicates with the fourth valve port. In the second operating state, the first valve port communicates with the second valve port, and the third valve port communicates with the fourth valve port.

[0007] In an embodiment, the reversing valve includes:

[0008] A valve seat, and the first valve port, the second valve port, the third valve port and the fourth valve port are all arranged on the valve seat;

[0009] The slider is slidably installed within the valve seat and can be switched between a first position and a second position. When the slider is in the first position, the reversing valve is in the first operating state, and when the slider is in the second position, the reversing valve is in the second operating state.

[0010] In one embodiment, a first cavity is provided within the valve seat, and the first valve port, the second valve port, the third valve port, and the fourth valve port are all provided on the valve seat.

[0011] The slider is slidably connected within the first cavity, and a second cavity is provided within the slider. When the slider slides to the first position, the first valve port and the third valve port are both in communication with the second cavity, and the second valve port and the fourth valve port are both in communication with the first cavity. When the slider slides to the second position, the first valve port and the second valve port are both in communication with the first cavity, and the third valve port and the fourth valve port are both in communication with the second cavity.

[0012] The present utility model also proposes a heat pump system, including a refrigerant circulation circuit, the refrigerant circulation circuit including a compressor, a reversing assembly, a first heat exchanger, a second heat exchanger, and the refrigerant heat dissipation module as described in any one of the above.

[0013] The exhaust port of the compressor, the suction port of the compressor, the first heat exchanger, and the second heat exchanger are all in communication with the reversing assembly. The reversing assembly is configured to switch the refrigerant flow direction between a first flow direction and a second flow direction. In the first flow direction, the refrigerant flows from the first heat exchanger to the second heat exchanger, and in the second flow direction, the refrigerant flows from the second heat exchanger to the first heat exchanger.

[0014] The first heat exchanger is in communication with the first valve port, and the second heat exchanger is in communication with the second valve port.

[0015] In one embodiment, the heat pump system further includes an exhaust temperature sensor provided on the exhaust side of the compressor, so that the heat pump system controls the throttle device to adjust the opening degree according to the exhaust temperature detected by the exhaust temperature sensor.

[0016] In one embodiment, the heat pump system further includes a suction temperature sensor provided on the suction side of the compressor, so that the heat pump system controls the throttle device to adjust the opening degree according to the suction temperature detected by the suction temperature sensor.

[0017] In one embodiment, the heat pump system further includes a first temperature sensor provided on the first heat exchanger, so that the heat pump system controls the throttle device to adjust the opening degree according to the suction temperature and the first temperature detected by the first temperature sensor.

[0018] In one embodiment, the heat pump system further includes a second temperature sensor disposed on the second heat exchanger, so that the heat pump system controls the throttle device to adjust the opening degree according to the suction gas temperature and the second temperature detected by the second temperature sensor.

[0019] The present utility model further provides an air conditioner, which includes a heating element and the heat pump system as described in any one of the above, and the heat dissipation pipe is in heat exchange connection with the heating element.

[0020] In the technical solution of the present utility model, in addition to the heat dissipation pipe and the throttle device, a reversing valve is also provided in the refrigerant heat dissipation module. When the refrigerant heat dissipation module is installed in the heat pump system and the refrigerant flow direction switches between different positions in the refrigerant circulation loop, after the refrigerant flows into the reversing valve from the first valve port or the fourth valve port, the operating state of the reversing valve can be switched according to the refrigerant flow direction, so as to ensure that no matter how the refrigerant flow direction changes in the refrigerant circulation loop, the refrigerant can first flow into the heat dissipation pipe and then into the throttle device, ensuring that the throttle device can throttle the flowing refrigerant under any working conditions, effectively improving the system energy efficiency under different working conditions, and the low-temperature refrigerant after throttling by the throttle device will not flow into the heat dissipation pipe, which can effectively reduce the condensation risk of the heating element cooled by the heat dissipation pipe, thereby realizing the reduction of the condensation risk of the heating element under different working conditions and improving the system energy efficiency at the same time. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the refrigerant heat dissipation module provided by the present utility model and a schematic diagram of the refrigerant flow direction when the reversing valve is in the first operating state;

[0023] Figure 2 It is a schematic structural diagram of an embodiment of the refrigerant heat dissipation module provided by the present utility model and a schematic diagram of the refrigerant flow direction when the reversing valve is in the second operating state;

[0024] Figure 3 It is a schematic structural diagram of an embodiment of the heat pump system provided by the present utility model.

[0025] Explanation of the Reference Numerals in the Drawings

[0026] 100, Refrigerant heat dissipation module; 1, reversing valve; 101, first valve port; 102, second valve port; 103, third valve port; 104, fourth valve port; 11, valve seat; 12, slider; 2, heat dissipation pipe; 3, throttling device; 01, first cavity; 02, second cavity;

[0027] 200, Compressor; 300, reversing assembly; 400, first heat exchanger; 500, second heat exchanger; 600, exhaust temperature sensor; 700, suction temperature sensor; 800, first temperature sensor; 900, second temperature sensor.

[0028] The realization, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The present invention provides a refrigerant heat dissipation module 100, which can be installed in a heat pump system and dissipate heat from the heating element.

[0033] Please refer to Figure 1 and Figure 2 In an embodiment of the present utility model, the refrigerant heat dissipation module 100 includes a reversing valve, a heat dissipation pipe and a throttling device 3 connected in sequence, and the heat dissipation pipe is arranged to be heat exchange connected with a heating element;

[0034] The reversing valve is provided with a first valve port 101, a second valve port 102, a third valve port 103 and a fourth valve port 104. The first valve port 101 and the fourth valve port 104 are arranged to communicate with different positions of the refrigerant circulation loop in the heat pump system. The second valve port 102 communicates with the heat dissipation pipe, and the third valve port 103 communicates with the throttling device 3;

[0035] The reversing valve has a first operating state and a second operating state. In the first operating state, the first valve port 101 communicates with the third valve port 103, and the second valve port 102 communicates with the fourth valve port 104. In the second operating state, the first valve port 101 communicates with the second valve port 102, and the third valve port 103 communicates with the fourth valve port 104.

[0036] The heating element may include any heating component such as an electrical control component in the equipment where the heat pump system is located.

[0037] In this embodiment, the throttling device 3 includes an electronic expansion valve. In other embodiments, the throttling device 3 may also include a capillary tube, a throttle valve, etc.

[0038] In this embodiment, during the operation of the heat pump system, the refrigerant flow direction will switch between the positions connected by the first valve port 101 and the fourth valve port 104.

[0039] The refrigerant circulation loop in the heat pump system includes a first heat exchanger 400 and a second heat exchanger 500. The first heat exchanger 400 is arranged indoors, the second heat exchanger 500 is arranged outdoors, or both the first heat exchanger 400 and the second heat exchanger 500 are arranged indoors. The first heat exchanger 400 communicates with the first valve port 101, and the second heat exchanger 500 communicates with the second valve port 102. In other embodiments, the refrigerant heat dissipation module 100 may also be installed in other pipe sections of the heat pump system where the refrigerant flow direction will switch.

[0040] The reversing valve is arranged to adapt to the operating state of the refrigerant flow direction switching in the refrigerant circulation loop, so that the refrigerant flows into the heat exchange pipe 2 first and then into the throttling device 3 under any refrigerant flow direction. In this embodiment, it is defined that the position connected by the first valve port 101 in the refrigerant circulation loop is the third position, and the position connected by the fourth valve port 104 is the fourth position. Then, the operating state of the reversing valve and the cooperation of the refrigerant flow direction between the third position and the fourth position are as follows:

[0041] When the refrigerant in the refrigerant circulation loop flows from the third position to the fourth position, the reversing valve operates in the second operating state, referring to Figure 2 The refrigerant flowing out of the third position flows through the first valve port 101, the second valve port 102, the heat exchange tube 2, the throttling device 3, the third valve port 103 and the fourth valve port 104 in sequence and then flows to the fourth position.

[0042] When the refrigerant in the refrigerant circulation loop flows from the fourth position to the third position, the reversing valve operates in the first operating state, referring to Figure 1 The refrigerant flowing out of the fourth position flows through the fourth valve port 104, the second valve port 102, the heat exchange tube 2, the throttling device 3, the third valve port 103 and the first valve port 101 in sequence and then flows to the third position.

[0043] In the technical solution of the utility model, in addition to the heat dissipation pipe and the throttling device 3, the refrigerant heat dissipation module 100 is also provided with a reversing valve. When the refrigerant heat dissipation module 100 is installed in the heat pump system, when the refrigerant flow direction between different positions in the refrigerant circulation loop is switched, after the refrigerant flows into the reversing valve from the first valve port 101 or the fourth valve port 104, the operating state of the reversing valve can adapt to the refrigerant flow direction for switching, thereby ensuring that no matter how the refrigerant flow direction in the refrigerant circulation loop changes, the refrigerant can first flow into the heat dissipation pipe and then into the throttling device 3, ensuring that the throttling device 3 can throttle the refrigerant flowing through under any operating conditions, effectively improving the system energy efficiency under different operating conditions, and the low-temperature refrigerant after throttling by the throttling device 3 will not flow into the heat dissipation pipe, which can effectively reduce the condensation risk of the heating element dissipated by the heat dissipation pipe, thereby achieving the reduction of the condensation risk of the heating element under different operating conditions while improving the system energy efficiency.

[0044] In one embodiment, referring to Figure 1 and Figure 2 , the reversing valve comprises:

[0045] A valve seat 11, wherein the first valve port 101, the second valve port 102, the third valve port 103 and the fourth valve port 104 are all disposed on the valve seat 11;

[0046] The slider 12 is slidably installed in the valve seat 11 and can be switched between a first position and a second position. When the slider 12 is located at the first position, the reversing valve is in the first operating state. When the slider 12 is located at the second position, the reversing valve is in the second operating state.

[0047] The slider 12 here can be connected to the output shaft of the driving motor, and the slider 12 is driven by the driving motor to move in the first position ( Figure 1 The position shown) and the second position ( Figure 2It switches between the positions shown. Alternatively, the slider 12 can also switch between the first position and the second position driven by the differential pressure corresponding to the refrigerant flow direction between the first valve port 101 and the fourth valve port 104.

[0048] In this embodiment, by switching the slider 12 to different positions within the valve seat 11, the refrigerant is reversed between the valve ports, so that with a simple structure, it can be ensured that the refrigerant in the heat pump system can first flow into the heat exchange tube 2 and then into the throttling device 3 under any working conditions, so as to reduce the condensation risk of the heating element and improve the system energy efficiency under different working conditions.

[0049] In other embodiments, the reversing valve may also include a valve seat 11 and a first diversion pipe and a second diversion pipe provided in the valve seat 11. One end of the first diversion pipe is communicated with the first valve port 101, and the other end of the first diversion pipe can be switched to communicate with the second valve port 102 or the third valve port 103. One end of the second diversion pipe is communicated with the fourth valve port 104, and the other end of the second diversion pipe can be switched to communicate with the second valve port 102 or the third valve port 103. Among them, when the first diversion pipe communicates the first valve port 101 with the third valve port 103 and the second diversion pipe communicates the fourth valve port 104 with the second valve port 102, the reversing valve is in the first operating state. When the second diversion pipe communicates the first valve port 101 with the second valve port 102 and the second diversion pipe communicates the fourth valve port 104 with the third valve port 103, the reversing valve is in the second operating state.

[0050] In one embodiment, a first cavity 01 is provided in the valve seat 11, and the first valve port 101, the third valve port 103, and the fourth valve port 104 are all provided on the valve seat 11;

[0051] The slider 12 is slidably connected in the first cavity 01, and a second cavity 02 is provided in the slider. When the slider 12 slides to the first position, the first valve port 101 and the third valve port 103 are both communicated with the second cavity 02, and the second valve port 102 and the fourth valve port 104 are both communicated with the first cavity 01. When the slider 12 slides to the second position, the first valve port 101 and the second valve port 102 are both communicated with the first cavity 01, and the third valve port 103 and the fourth valve port 104 are both communicated with the second cavity 02.

[0052] Among them, the inner wall of the slider 12 and the inner wall of the valve seat 11 enclose the first cavity 01, and the outer wall of the slider 12 and the inner wall of the valve seat 11 enclose the second cavity 02. When the slider 12 is in the first position, the projection of the first cavity 01 on the installation part at least covers the first valve port 101 and the third valve port 103. When the slider 12 is in the second position, the projection of the first cavity 01 on the installation part at least covers the third valve port 103 and the fourth valve port 104.

[0053] In this embodiment, as the slider 12 slides, the valve ports respectively communicating with the first cavity 01 and the second cavity 02 will also change. In addition to meeting the commutation requirement and communicating with the corresponding valve ports, the slider 12 can also isolate the valve ports that do not need to be communicated, so as to realize the commutation of the refrigerant while reducing the unnecessary cross-flow of the refrigerant, which is beneficial to further reducing the condensation risk of the heating element and further improving the system energy efficiency of the heat pump system where the refrigerant heat dissipation module 100 is located.

[0054] In other embodiments, a first groove and a second groove may also be provided in the slider 12. The slider 12 is slidably connected to the first inner wall of the installation cavity. The first valve port 101, the second valve port 102, the third valve port 103 and the fourth valve port 104 are all provided on the first inner wall. The first groove and the first inner wall enclose a third cavity, and the second groove and the second inner wall enclose a fourth cavity. When the slider 12 slides to the first position, the first valve port 101 and the third valve port 103 are both communicated with the third cavity, and the second valve port 102 and the fourth valve port 104 are both communicated with the fourth cavity; when the slider 12 slides to the second position, the first valve port 101 and the second valve port 102 are both communicated with the third cavity, and the third valve port 103 and the fourth valve port 104 are both communicated with the fourth cavity.

[0055] The present utility model also proposes a heat pump system, combined with Figure 3 , the heat pump system includes a refrigerant circulation loop, the refrigerant circulation loop includes a compressor 200, a commutation component 300, a first heat exchanger 400, a second heat exchanger 500 and the above-mentioned refrigerant heat dissipation module 100. The specific structure of the refrigerant heat dissipation module 100 refers to the above embodiments.

[0056] Wherein, the exhaust port of the compressor 200, the suction port of the compressor 200, the first heat exchanger 400 and the second heat exchanger 500 are all communicated with the commutation component 300. The commutation component 300 is configured to switch the refrigerant flow direction between a first flow direction and a second flow direction. In the first flow direction, the refrigerant flows from the first heat exchanger 400 to the second heat exchanger 500, and in the second flow direction, the refrigerant flows from the second heat exchanger 500 to the first heat exchanger 400;

[0057] The first heat exchanger 400 is communicated with the first valve port 101, and the second heat exchanger 500 is communicated with the second valve port 102.

[0058] In this embodiment, the first heat exchanger 400 is arranged indoors, and the second heat exchanger 500 is arranged outdoors. In other embodiments, the first heat exchanger 400 and the second heat exchanger 500 may also be both arranged indoors, such as the heat pump system in a mobile air conditioner, etc.

[0059] The commutation component 300 may include a four-way valve or a combination of multiple solenoid valves.

[0060] The commutation assembly 300 has a third operating state and a fourth operating state. When the commutation assembly 300 is in the third operating state, the exhaust port of the compressor 200 is communicated with the first heat exchanger 400, and the suction port of the compressor 200 is communicated with the second heat exchanger 500. At this time, when the compressor 200 starts, the refrigerant flows in the first flow direction; when the commutation assembly 300 is in the fourth operating state, the exhaust port of the compressor 200 is communicated with the second heat exchanger 500, and the suction port of the compressor 200 is communicated with the first heat exchanger 400. At this time, when the compressor 200 starts, the refrigerant flows in the second flow direction.

[0061] The operating state of the reversing valve is switched according to the operating state of the commutation assembly 300, so as to ensure that the refrigerant between the first heat exchanger 400 and the second heat exchanger 500 can first flow into the heat exchange tube 2 to dissipate heat from the heating element and then flow into the throttling device 3 for throttling and pressure reduction when the commutation assembly 300 operates in any state.

[0062] Through the cooperation of the commutation assembly 300, the reversing valve and the throttling device 3, the heat pump system has at least the following two operating modes:

[0063] The first mode: The commutation assembly 300 operates in the third operating state. At this time, the reversing valve operates in the second operating state, and the throttling device 3 operates with a throttling opening. The refrigerant discharged by the compressor 200 flows through the first heat exchanger 400, the heat exchange tube 2, the throttling device 3 and the second heat exchanger 500 in sequence and then returns to the compressor 200. Among them, the refrigerant enters the first heat exchanger 400 for condensation and heat release. The refrigerant flowing out of the first heat exchanger 400 exchanges heat with the heating element when flowing through the heat exchange tube 2 to dissipate heat from the heating element. The refrigerant after heat dissipation is throttled and depressurized by the throttling device 3 and then flows into the second heat exchanger 500 for evaporation.

[0064] The second mode: The commutation assembly 300 operates in the fourth operating state. At this time, the reversing valve operates in the first operating state, and the throttling device 3 operates with a throttling opening. The refrigerant discharged by the compressor 200 flows through the second heat exchanger 500, the heat exchange tube 2, the throttling device 3 and the first heat exchanger 400 in sequence and then returns to the compressor 200. Among them, the refrigerant enters the second heat exchanger 500 for condensation and heat release. The refrigerant flowing out of the second heat exchanger 500 exchanges heat with the heating element when flowing through the heat exchange tube 2 to dissipate heat from the heating element. The refrigerant after heat dissipation is throttled and depressurized by the throttling device 3 and then flows into the first heat exchanger 400 for evaporation.

[0065] Based on this, whether in the first mode or the second mode, the refrigerant between the first heat exchanger 400 and the second heat exchanger 500 first flows into the heat dissipation tube and then into the throttling device 3.

[0066] Since the heat pump system in this embodiment adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.

[0067] In one embodiment, the heat pump system further includes an exhaust temperature sensor 600 disposed on the exhaust side of the compressor 200, so that the heat pump system controls the throttle device 3 to adjust the opening according to the exhaust temperature detected by the exhaust temperature sensor 600.

[0068] In this embodiment, the control device in the heat pump system can obtain the exhaust temperature detected by the exhaust temperature sensor 600, determine the temperature difference value between the exhaust temperature and the target exhaust temperature to obtain a first temperature difference value, and adjust the opening of the throttle device 3 according to the first temperature difference value. When the first temperature difference value is greater than the first preset temperature difference, increase the opening of the throttle device 3; when the first temperature difference value is less than or equal to the first preset temperature difference, decrease the opening of the throttle device 3.

[0069] After adjusting the opening of the throttle device 3 according to the first temperature difference value, the control device can obtain the exhaust temperature detected by the exhaust temperature sensor 600 again, determine the temperature difference value between the exhaust temperature and the target exhaust temperature to obtain a second temperature difference value, and adjust the opening of the throttle device 3 according to the second temperature difference value. When the second temperature difference value is less than or equal to the second preset temperature difference, decrease the opening of the throttle device 3; when the second temperature difference value is greater than the second preset temperature difference, maintain the current opening of the throttle device 3 unchanged; wherein, the second preset temperature difference here is less than the first preset temperature difference.

[0070] Among them, before controlling the throttle device 3 to adjust the opening according to the exhaust temperature, the throttle device 3 can be controlled to operate at the initial opening.

[0071] In this embodiment, the setting of the exhaust temperature sensor 600 can realize the adjustment of the opening of the throttle device 3 to adapt to the exhaust temperature, ensure that the exhaust temperature of the heat pump system can be within the target temperature range, and effectively improve the operation reliability and energy efficiency of the system.

[0072] In other embodiments, the temperature range where the exhaust temperature is located can also be determined, the target opening of the throttle device 3 can be determined according to the temperature range, and the throttle device 3 can be controlled to operate at the target opening.

[0073] In one embodiment, the heat pump system further includes a suction temperature sensor 700 disposed on the suction side of the compressor 200, so that the heat pump system controls the throttle device 3 to adjust the opening according to the suction temperature detected by the suction temperature sensor 700.

[0074] The control device of the heat pump system can obtain the suction gas temperature detected by the suction gas temperature sensor 700 and adjust the opening degree of the throttling device 3 according to the suction gas temperature. In one implementation, the target opening degree of the throttling device 3 can be determined according to the suction gas temperature, and the throttling device 3 is controlled to operate at the target opening degree; in another implementation, the opening degree adjustment parameter can be determined according to the suction gas temperature, and the current opening degree of the throttling device 3 is adjusted according to the opening degree adjustment parameter.

[0075] In this embodiment, the setting of the suction gas temperature sensor 700 can enable the opening degree of the throttling device 3 to be adjusted according to the suction gas temperature, ensuring that the suction gas temperature of the heat pump system will not be too high or too low, and effectively improving the operation reliability and energy efficiency of the system.

[0076] In one embodiment, the heat pump system further includes a first temperature sensor 800 disposed on the first heat exchanger 400, so that the heat pump system controls the throttling device 3 to adjust the opening degree according to the suction gas temperature and the first temperature detected by the first temperature sensor 800.

[0077] In this embodiment, when the commutation assembly 300 operates in the fourth operating state, the temperature difference value between the suction gas temperature and the first temperature can be determined, the first suction gas superheat degree is obtained, and the throttling device 3 is controlled to adjust the opening degree according to the first suction gas superheat degree. When the first suction gas superheat degree is less than or equal to the first preset superheat degree, the opening degree of the throttling device 3 is reduced to make the suction gas superheat degree reach the first target range; when the first suction gas superheat degree is greater than the first preset superheat degree, the current opening degree of the throttling device 3 remains unchanged.

[0078] In this embodiment, through the above method, when the commutation assembly 300 operates in the fourth operating state, the suction gas superheat degree will not be too large or too small, which is beneficial to avoiding liquid carry-over in the suction gas and improving the heat exchange efficiency of the system, and effectively improving the operation reliability and energy efficiency of the system.

[0079] In one embodiment, the heat pump system further includes a second temperature sensor 900 disposed on the second heat exchanger 500, so that the heat pump system controls the throttling device 3 to adjust the opening degree according to the suction gas temperature and the second temperature detected by the second temperature sensor 900.

[0080] In this embodiment, when the commutation assembly 300 operates in the third operating state, the temperature difference value between the suction gas temperature and the second temperature can be determined, the second suction gas superheat degree is obtained, and the throttling device 3 is controlled to adjust the opening degree according to the second suction gas superheat degree. When the second suction gas superheat degree is less than or equal to the second preset superheat degree, the opening degree of the throttling device 3 is reduced to make the suction gas superheat degree reach the second target range; when the second suction gas superheat degree is greater than the second preset superheat degree, the current opening degree of the throttling device 3 remains unchanged.

[0081] In this embodiment, by the above method, when the commutation assembly 300 operates in the third operating state, the superheat degree of the return air will not be too large or too small, which is beneficial to avoid liquid carry - over in the return air while improving the heat exchange efficiency of the system, and effectively improves the operating reliability and energy efficiency of the system.

[0082] The present utility model also provides an air conditioner, which includes a heating element and the above - mentioned heat pump system. The heat pump system is in heat - exchange connection with the heating element, and the specific structure of the heat pump system refers to the above - mentioned embodiment.

[0083] The air conditioner can include any type of air conditioner such as a wall - mounted air conditioner, a cabinet - type air conditioner, a window - type air conditioner, a mobile air conditioner, a ceiling - mounted air conditioner, a multi - split air conditioner, etc.

[0084] Since the air conditioner in this embodiment adopts all the technical solutions of the above - mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above - mentioned embodiments, which will not be elaborated one by one here.

[0085] The above - mentioned is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A refrigerant heat dissipation module, characterized in that: The refrigerant heat dissipation module comprises a reversing valve, a heat dissipation pipe and a throttling device connected in sequence, and the heat dissipation pipe is arranged to be connected to the heating element for heat exchange; The reversing valve is provided with a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the fourth valve port are arranged to be connected to different positions of the refrigerant circulation loop in the heat pump system, the second valve port is connected to the heat dissipation pipe, and the third valve port is connected to the throttling device; The reversing valve has a first operating state and a second operating state. In the first operating state, the first valve port is connected to the third valve port, and the second valve port is connected to the fourth valve port. In the second operating state, the first valve port is connected to the second valve port, and the third valve port is connected to the fourth valve port.

2. The refrigerant heat dissipation module according to claim 1, characterized in that: The reversing valve comprises: a valve seat, wherein the first valve port, the second valve port, the third valve port and the fourth valve port are all arranged on the valve seat; A slider is slidably installed in the valve seat and can be switched between a first position and a second position. When the slider is located at the first position, the reversing valve is in the first operating state. When the slider is located at the second position, the reversing valve is in the second operating state.

3. The refrigerant heat dissipation module according to claim 2, characterized in that: A first cavity is provided in the valve seat, and the first valve port, the second valve port, the third valve port and the fourth valve port are all provided on the valve seat; The slider is slidably connected to the first cavity, and a second cavity is provided in the slider. When the slider slides to the first position, the first valve port and the third valve port are both connected to the second cavity, and the second valve port and the fourth valve port are both connected to the first cavity. When the slider slides to the second position, the first valve port and the second valve port are both connected to the first cavity, and the third valve port and the fourth valve port are both connected to the second cavity.

4. A heat pump system, characterized in that: It comprises a refrigerant circulation circuit, wherein the refrigerant circulation circuit comprises a compressor, a reversing component, a first heat exchanger, a second heat exchanger, and a refrigerant heat dissipation module according to any one of claims 1 to 3; The exhaust port of the compressor, the return port of the compressor, the first heat exchanger and the second heat exchanger are all connected to the reversing component, and the reversing component is configured to switch the refrigerant flow direction between a first flow direction and a second flow direction, in which the refrigerant flows from the first heat exchanger to the second heat exchanger in the first flow direction, and in which the refrigerant flows from the second heat exchanger to the first heat exchanger in the second flow direction; The first heat exchanger is communicated with the first valve port, and the second heat exchanger is communicated with the second valve port.

5. The heat pump system according to claim 4, characterized in that: The heat pump system further includes an exhaust temperature sensor disposed on the exhaust side of the compressor, so that the heat pump system controls the throttling device to adjust the opening degree according to the exhaust temperature detected by the exhaust temperature sensor.

6. The heat pump system according to claim 4 or 5, characterized in that: The heat pump system further includes a return air temperature sensor disposed on the return air side of the compressor, so that the heat pump system controls the throttling device to adjust the opening degree according to the return air temperature detected by the return air temperature sensor.

7. The heat pump system according to claim 6, characterized in that: The heat pump system further includes a first temperature sensor disposed on the first heat exchanger, so that the heat pump system controls the throttling device to adjust the opening degree according to the return air temperature and a first temperature detected by the first temperature sensor.

8. The heat pump system according to claim 6, characterized in that: The heat pump system further includes a second temperature sensor disposed on the second heat exchanger, so that the heat pump system controls the throttling device to adjust the opening degree according to the return air temperature and a second temperature detected by the second temperature sensor.

9. An air conditioner, characterized in that: The invention comprises a heat pump system as claimed in any one of claims 4 to 8 and a heat generating element, wherein the heat dissipation pipe is connected to the heat generating element for heat exchange.

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