Heat pump system and air source heat pump unit

Abstract

The utility model discloses a kind of heat pump system and air source heat pump unit, it is related to heat pump technical field, heat pump system is applicable to heat pump equipment, in heat pump system, fluorine cooling radiator is communicated with waterside heat exchanger by first four-way valve;Fluorine cooling radiator is communicated with wind side heat exchanger by first four-way valve;Compressor is communicated with waterside heat exchanger by second four-way valve;Compressor is communicated with wind side heat exchanger by second four-way valve;Economizer is communicated with fluorine cooling radiator and first four-way valve, and economizer is communicated with compressor by enthalpy increasing pipeline;Under refrigeration mode or heating mode, first four-way valve and second four-way valve cooperate and switch refrigerant flow direction, refrigerant of condensing side is transported to economizer by fluorine cooling radiator, so that part of refrigerant after supercooling in economizer is transported to compressor by enthalpy increasing pipeline and carries out air supply and enthalpy increasing.The utility model can improve the ability energy efficiency of heat pump equipment.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, specifically to a heat pump system and an air source heat pump unit. Background Technology

[0002] In heat pump equipment, such as air source heat pump units, heat pump water heaters, and heat pump modular units, the electronic control module (also known as the drive board) is prone to problems such as high current and high heat generation. Using pure air cooling to dissipate heat from the electronic control module is not very effective. To address this, some related technical solutions incorporate a refrigerant-cooled radiator within the heat pump equipment to dissipate heat from the refrigerant through heat dissipation of the electronic control module. These solutions typically connect two electronic expansion valves in series before and after the refrigerant-cooled radiator to ensure that the refrigerant used for cooling the electronic control module is in a condensation state.

[0003] However, this dual electronic expansion valve solution, for heat pump equipment with a gas replenishment and enthalpy enhancement system, can only deliver the subcooled refrigerant to the compressor for gas replenishment and enthalpy enhancement in one of the cooling or heating modes. In the other mode, it can only deliver the unsubcooled refrigerant to the compressor for gas replenishment and enthalpy enhancement. As a result, the subcooling degree of the refrigerant for gas replenishment and enthalpy enhancement will be insufficient, leading to a reduction in the energy efficiency of the heat pump equipment and affecting the user experience. Utility Model Content

[0004] This utility model provides a heat pump system suitable for heat pump equipment, which can deliver subcooled refrigerant to the compressor for gas replenishment and enthalpy increase in both cooling and heating modes, thereby improving the energy efficiency of the heat pump equipment.

[0005] The embodiments of this application provide the following technical solutions:

[0006] According to one embodiment of this utility model, a heat pump system is applicable to heat pump equipment. The heat pump system includes a refrigerant-cooled radiator, a water-side heat exchanger, an air-side heat exchanger, a first four-way valve, an economizer, a compressor, and a second four-way valve. The refrigerant-cooled radiator is used to dissipate heat from the electronic control module. The refrigerant-cooled radiator is connected to the water-side heat exchanger through the first four-way valve. The refrigerant-cooled radiator is connected to the air-side heat exchanger through the first four-way valve. The compressor is connected to the water-side heat exchanger through the second four-way valve. The compressor is connected to the air-side heat exchanger through the second four-way valve. The economizer is connected to the refrigerant-cooled radiator and the first four-way valve, and the economizer is connected to the compressor through an enthalpy-increasing pipeline. In cooling mode or heating mode, the first four-way valve and the second four-way valve work together to switch the refrigerant flow direction, transporting the refrigerant on the condenser side to the economizer via the refrigerant-cooled radiator, so that a portion of the refrigerant that has been subcooled in the economizer is transported to the compressor via the enthalpy-increasing pipeline for enthalpy replenishment.

[0007] In one embodiment, in the cooling mode, the second four-way valve switches to the second refrigerant flow direction, allowing the refrigerant output from the compressor to be delivered to the air-side heat exchanger; and the first four-way valve switches to the first refrigerant flow direction, allowing the refrigerant output from the air-side heat exchanger to be delivered to the refrigerant-cooled radiator and further delivered to the economizer; in the heating mode, the second four-way valve switches to the first refrigerant flow direction, allowing the refrigerant output from the compressor to be delivered to the water-side heat exchanger; and the first four-way valve switches to the second refrigerant flow direction, allowing the refrigerant output from the water-side heat exchanger to be delivered to the refrigerant-cooled radiator and further delivered to the economizer.

[0008] In one embodiment, the first four-way valve includes a first port, a second port, a third port, and a fourth port; wherein, the first port is connected to the radiator inlet of the refrigerant-cooled radiator; the second port is connected to the water-side heat exchanger; the third port is connected to the main outlet of the economizer; and the fourth port is connected to the air-side heat exchanger; when the first four-way valve is switched to the first refrigerant flow direction, the first port and the fourth port are connected, and the second port and the third port are connected; when the first four-way valve is switched to the second refrigerant flow direction, the first port and the second port are connected, and the third port and the fourth port are connected.

[0009] In one embodiment, the second four-way valve includes a first channel port, a second channel port, a third channel port, and a fourth channel port; the first channel port is connected to the exhaust port of the compressor; the second channel port is connected to the air-side heat exchanger; the third channel port is connected to the intake port of the compressor; and the fourth channel port is connected to the water-side heat exchanger; when the second four-way valve is switched to the first refrigerant flow direction, the first channel port and the fourth channel port are connected, and the second channel port and the third channel port are connected; when the second four-way valve is switched to the second refrigerant flow direction, the first channel port and the second channel port are connected, and the third channel port and the fourth channel port are connected.

[0010] In one embodiment, a gas-liquid separator is further provided between the third channel port and the suction port of the compressor. The gas-liquid separator is used to separate the refrigerant gas and liquid output from the third channel port and then deliver it to the compressor through the suction port.

[0011] In one embodiment, the outlet of the fluorinated radiator is connected to the main inlet of the economizer; the main inlet and the main outlet are connected through a main pipeline; the fluorinated radiator outputs refrigerant from the outlet and delivers it to the economizer through the main inlet, where it exchanges heat in the main pipeline of the economizer and is then output from the outlet.

[0012] In one embodiment, the auxiliary inlet of the economizer is connected to the main outlet of the economizer; the auxiliary outlet of the economizer is connected to the enthalpy-increasing inlet of the compressor; the auxiliary inlet and the auxiliary outlet are connected through an auxiliary pipeline; the auxiliary inlet and the main outlet are connected through an auxiliary connecting pipeline; a portion of the refrigerant output from the main outlet of the economizer flows back to the auxiliary pipeline via the auxiliary connecting pipeline and the auxiliary inlet, and after heat exchange between the refrigerant in the auxiliary pipeline and the main pipeline, it is output through the auxiliary outlet and delivered to the compressor through the enthalpy-increasing inlet for gas replenishment and enthalpy increase.

[0013] In one embodiment, the main outlet of the economizer is connected to the third port via a main connecting pipe, and a main electronic expansion valve is installed on the main connecting pipe to throttle the refrigerant flowing through the main connecting pipe.

[0014] In one embodiment, an auxiliary electronic expansion valve is provided on the auxiliary connecting pipe, the auxiliary electronic expansion valve being used to throttle the refrigerant flowing through the auxiliary connecting pipe.

[0015] According to one embodiment of the present invention, an air source heat pump unit, specifically referring to the air source heat pump unit as described in any of the foregoing embodiments.

[0016] In this embodiment of the utility model, the heat pump system is applicable to heat pump equipment. The heat pump system includes a refrigerant-cooled radiator, a water-side heat exchanger, an air-side heat exchanger, a first four-way valve, an economizer, a compressor, and a second four-way valve. The refrigerant-cooled radiator is used to dissipate heat from the electronic control module. The refrigerant-cooled radiator is connected to the water-side heat exchanger through the first four-way valve. The refrigerant-cooled radiator is connected to the air-side heat exchanger through the first four-way valve. The compressor is connected to the water-side heat exchanger through the second four-way valve. The compressor is connected to the air-side heat exchanger through the second four-way valve. The economizer is connected to the refrigerant-cooled radiator and the first four-way valve, and the economizer is connected to the compressor through an enthalpy-increasing pipeline. In cooling mode or heating mode, the first four-way valve and the second four-way valve work together to switch the refrigerant flow direction, transporting the refrigerant on the condenser side to the economizer via the refrigerant-cooled radiator, so that a portion of the refrigerant that has been subcooled in the economizer is transported to the compressor via the enthalpy-increasing pipeline for enthalpy replenishment.

[0017] In this embodiment of the present invention, for a heat pump system that uses a refrigerant-cooled radiator to dissipate heat from the electronic control module, the refrigerant flow direction can be switched collaboratively between cooling and heating modes via the first and second four-way valves. This allows the subcooled refrigerant to be delivered to the compressor for enthalpy replenishment, thereby improving the energy efficiency of the heat pump equipment. Furthermore, this control scheme, which uses the first and second four-way valves in coordination, is simple and convenient, and eliminates the risk of synchronization failure, further enhancing the overall operational stability and reliability of the heat pump equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A block diagram of a heat pump system according to an embodiment of this application is shown. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this specification, references to "one embodiment" or "some embodiments" mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in still other embodiments" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms include, comprise, have, and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0024] In heat pump equipment, such as air source heat pump units, heat pump water heaters, and heat pump modular units, the electronic control module (also known as the drive board) is prone to problems such as high current and high heat generation. Using pure air cooling to dissipate heat from the electronic control module is not very effective. To address this, some related technical solutions incorporate a refrigerant-cooled radiator within the heat pump equipment to dissipate heat from the refrigerant through heat dissipation of the electronic control module. These solutions typically connect two electronic expansion valves in series before and after the refrigerant-cooled radiator to ensure that the refrigerant used for cooling the electronic control module is in a condensation state.

[0025] However, this dual electronic expansion valve solution, for heat pump equipment with a gas replenishment and enthalpy enhancement system, can only deliver the subcooled refrigerant to the compressor for gas replenishment and enthalpy enhancement in one of the cooling or heating modes. In the other mode, it can only deliver the unsubcooled refrigerant to the compressor for gas replenishment and enthalpy enhancement. As a result, the subcooling degree of the refrigerant for gas replenishment and enthalpy enhancement will be insufficient, leading to a reduction in the energy efficiency of the heat pump equipment and affecting the user experience.

[0026] To address the aforementioned technical problems, embodiments of this utility model provide a heat pump system with a fluorine-cooled radiator for cooling the electronic control module. This heat pump system is suitable for heat pump equipment. It uses a first four-way valve and a second four-way valve to collaboratively switch the refrigerant flow direction between cooling and heating modes. This allows the heat pump equipment to deliver subcooled refrigerant to the compressor for enthalpy replenishment in both cooling and heating modes, thereby improving the equipment's capacity and efficiency. Furthermore, conventional dual electronic expansion valve solutions require additional control logic to ensure the control of both valves, and the electronic expansion valves themselves are prone to synchronization failures. The collaborative control scheme using the first and second four-way valves in this utility model is simple, convenient, and eliminates the risk of synchronization failures, further enhancing the overall operational stability and reliability of the heat pump equipment.

[0027] See Figure 1 , Figure 1 A block diagram of a heat pump system according to one embodiment of this application is illustrated schematically. Figure 1 As shown, the heat pump system 100 may include a fluorinated radiator 110, a water-side heat exchanger 120, an air-side heat exchanger 130, a first four-way valve 140, an economizer 150, a compressor 160, and a second four-way valve 170. The fluorinated radiator 110 is used to dissipate heat from the electronic control module (not shown in the figure) in the heat pump equipment.

[0028] The fluorinated radiator 110 is connected to the water-side heat exchanger 120 via a first four-way valve 140; the fluorinated radiator 110 is also connected to the air-side heat exchanger 130 via the first four-way valve 140. The compressor 160 is connected to the water-side heat exchanger 120 via a second four-way valve 170; the compressor 160 is also connected to the air-side heat exchanger 130 via the second four-way valve 170.

[0029] Furthermore, the economizer 150 is connected to the refrigerant-cooled radiator 110, the economizer 150 is connected to the first four-way valve 140, and the economizer 150 is connected to the compressor 160 through the enthalpy-increasing pipeline 159. In cooling or heating mode, the first four-way valve 140 and the second four-way valve 170 work together to switch the refrigerant flow direction, so that the refrigerant on the condenser side of the heat pump system 100 is transported to the economizer 150 through the refrigerant-cooled radiator 110 for heat exchange to achieve refrigerant subcooling. This allows some of the refrigerant after subcooling in the economizer 150 to be transported to the compressor 160 through the enthalpy-increasing pipeline 159. Since the enthalpy difference (heat absorption capacity) of the subcooled refrigerant is significantly increased, it can be effectively replenished and increased in enthalpy when transported to the compressor 160, thereby effectively improving the energy efficiency of the heat pump equipment.

[0030] In cooling mode, the refrigerant on the condenser side of the heat pump system 100 refers to the refrigerant output from the air-side heat exchanger 130; in heating mode, the refrigerant on the condenser side of the heat pump system 100 refers to the refrigerant output from the water-side heat exchanger 120. The refrigerant on the condenser side is first fed into the refrigerant-cooled radiator 110, which dissipates heat from the electronic control module (not shown in the figure) in the heat pump equipment. Then, the refrigerant output from the refrigerant-cooled radiator 110 is further transported to the economizer 150 for heat exchange to achieve refrigerant subcooling.

[0031] Therefore, in this invention, for heat pump systems that use a refrigerant-cooled radiator to dissipate heat from the electronic control module, the refrigerant flow direction can be switched collaboratively between cooling and heating modes via the first and second four-way valves. This allows the subcooled refrigerant to be delivered to the compressor for enthalpy replenishment, thereby improving the energy efficiency of the heat pump equipment. Furthermore, this control scheme, which uses the first and second four-way valves in coordination, is simple and convenient, eliminates the risk of synchronization failure, and further enhances the overall operational stability and reliability of the heat pump equipment.

[0032] In cooling mode, the refrigerant on the condenser side refers to the refrigerant output from the air-side heat exchanger 130. At this time, the second four-way valve 170 can be switched to the second refrigerant flow direction, which will cause the refrigerant output from the compressor 160 to be delivered to the air-side heat exchanger 130 first; and the first four-way valve 140 is switched to the first refrigerant flow direction, which will cause the refrigerant on the condenser side output from the air-side heat exchanger 130 to be delivered to the refrigerant radiator 110 and further delivered to the economizer 150 for heat exchange to achieve refrigerant subcooling, so that part of the refrigerant after subcooling in the economizer 150 is delivered to the compressor 160 via the enthalpy-increasing pipeline 159.

[0033] In heating mode, the refrigerant on the condensing side refers to the refrigerant output from the water-side heat exchanger 120. At this time, the second four-way valve 170 can be switched to the first refrigerant flow direction, which will cause the refrigerant output from the compressor 160 to be first delivered to the water-side heat exchanger 120; and the first four-way valve 140 is switched to the second refrigerant flow direction, which will cause the refrigerant on the condensing side output from the water-side heat exchanger 120 to be delivered to the refrigerant radiator 110 and further delivered to the economizer 150 for heat exchange to achieve refrigerant subcooling, so that part of the refrigerant after subcooling in the economizer 150 is delivered to the compressor 160 via the enthalpy-increasing pipeline 159.

[0034] Specifically, the first four-way valve 140 may include a first port 141, a second port 142, a third port 143, and a fourth port 144; wherein, the first port 141 is connected to the radiator inlet 111 of the refrigerant-cooled radiator 110; the second port 142 is connected to the first water-side connection port 121 of the water-side heat exchanger 120; the third port 143 is connected to the main outlet 152 of the economizer 150; and the fourth port 144 is connected to the first air-side connection port 131 of the ventilation-side heat exchanger 130.

[0035] In cooling mode, when the first four-way valve 140 switches to the first refrigerant flow direction, the first port 141 and the fourth port 144 are connected, and the second port 142 and the third port 143 are connected. Therefore, the refrigerant output from the first air-side connection port 131 of the air-side heat exchanger 130 can be sequentially delivered to the refrigerant-cooled radiator 110 through the third port 143, the first port 141, and the radiator inlet 111. This allows the refrigerant-cooled radiator 110 to dissipate heat from the heat pump equipment's electronic control module and further deliver the refrigerant to the economizer 150 for heat exchange to achieve refrigerant subcooling.

[0036] In heating mode, when the first four-way valve 140 switches to the second refrigerant flow direction, the first port 141 and the second port 142 are connected, and the third port 143 and the fourth port 144 are connected. Thus, the refrigerant output from the first water-side connection port 121 of the water-side heat exchanger 120 can be sequentially transported to the refrigerant-cooled radiator 110 through the second port 142, the first port 141, and the radiator inlet 111. This allows the refrigerant-cooled radiator 110 to dissipate heat from the heat pump equipment's electronic control module and further transport the refrigerant to the economizer 150 for heat exchange to achieve refrigerant subcooling.

[0037] Furthermore, the second four-way valve 170 may include a first channel port 171, a second channel port 172, a third channel port 173, and a fourth channel port 174; the first channel port 171 is connected to the exhaust port 162 of the compressor 160; the second channel port 172 is connected to the second air-side connection port 132 of the air-side heat exchanger 130; the third channel port 173 is connected to the intake port 163 of the compressor 160; and the fourth channel port 174 is connected to the second water-side connection port 122 of the water-side heat exchanger 120.

[0038] The second four-way valve 170 is the opposite of the first four-way valve 140. In cooling mode, the second four-way valve 170 switches to the second refrigerant flow direction. At this time, the first channel port 171 and the second channel port 172 are connected, and the third channel port 173 and the fourth channel port 174 are connected. At this time, the refrigerant output by the compressor 160 is transported to the air-side heat exchanger 130 for heat exchange via the first channel port 171, the second channel port 172 and the second air-side connection port 132. After heat exchange, the refrigerant is output from the first air-side connection port 131 and further transported to the refrigerant-cooled radiator 110 via the third port 143, the first port 141 and the radiator inlet 111. This allows the refrigerant-cooled radiator 110 to dissipate heat from the electronic control module of the heat pump equipment and further transport it to the economizer 150 for heat exchange to achieve refrigerant subcooling.

[0039] In heating mode, the second four-way valve 170 switches to the first refrigerant flow direction. At this time, the first channel port 171 and the fourth channel port 174 are connected, and the second channel port 172 and the third channel port 173 are connected. The refrigerant output from the compressor 160 is transported to the water-side heat exchanger 120 for heat exchange via the first channel port 171, the fourth channel port 174 and the second water-side connection port 122. After heat exchange, the refrigerant is output from the first water-side connection port 121 and further transported to the refrigerant-cooled radiator 110 via the second port 142, the first port 141 and the radiator inlet 111. This allows the refrigerant-cooled radiator 110 to dissipate heat from the electronic control module of the heat pump equipment and further transport it to the economizer 150 for heat exchange to achieve refrigerant subcooling.

[0040] Furthermore, the radiator outlet 112 of the refrigerant-cooled radiator 110 is connected to the main inlet 151 of the economizer 150; the main outlet 152 of the economizer 150 is connected to the third port 143 via the main connecting pipe 157; the main inlet 151 and the main outlet 152 are connected via the main pipe. Thus, the refrigerant-cooled radiator 110 can deliver refrigerant through the radiator outlet 112 and the main inlet 151 to the main pipe of the economizer 150, where the refrigerant undergoes heat exchange and is then output from the main outlet 152.

[0041] Then, in cooling mode, when the first four-way valve 140 switches to the first refrigerant flow direction, the refrigerant output from the main outlet 152 is transported to the third port 143 through the main connecting pipe 157, and then sequentially transported to the water-side heat exchanger 120 for heat exchange via the third port 143, the second port 142, and the first water-side connecting port 121. The refrigerant after heat exchange is output from the second water-side connecting port 122 to the fourth channel port 174 of the second four-way valve 170; then, it is sequentially transported to the compressor via the fourth channel port 174, the third channel port 173, and the suction port 163 of the compressor 160. A gas-liquid separator 180 can also be installed between the third channel port 173 and the suction port 163 of the compressor 160. The gas-liquid separator 180 can separate the refrigerant output from the third channel port 173 into gas and liquid components before further transporting it to the compressor via the suction port 163.

[0042] Furthermore, in heating mode, when the first four-way valve 140 switches to the second refrigerant flow direction, the refrigerant output from the main outlet 152 is transported to the third port 143 through the main connecting pipe 157. Then, it is sequentially transported to the air-side heat exchanger 130 for heat exchange via the third port 143, the fourth port 144, and the first air-side connecting port 131. The refrigerant after heat exchange is output from the second air-side connecting port 132 to the second channel port 172 of the second four-way valve 170. Then, it is sequentially transported to the compressor via the second channel port 172, the third channel port 173, and the suction port 163 of the compressor 160. A gas-liquid separator 180 can also be installed between the third channel port 173 and the suction port 163 of the compressor 160. The gas-liquid separator 180 can separate the refrigerant gas and liquid output from the third channel port 173 before further transporting it to the compressor via the suction port 163.

[0043] Furthermore, the auxiliary inlet 154 of the economizer 150 is connected to the main outlet 152 of the economizer 150 via an auxiliary connecting pipe 155; the auxiliary outlet 153 of the economizer is connected to the enthalpy-increasing inlet 161 of the compressor 160; the auxiliary inlet 154 and the auxiliary outlet 153 are connected via an auxiliary pipe. A portion of the subcooled refrigerant output from the main outlet 152 of the economizer 150 flows back to the auxiliary pipe within the economizer 150 via the auxiliary connecting pipe 155 and the auxiliary inlet 154. After heat exchange between the refrigerant in the auxiliary pipe and the main pipe within the economizer 150, it is output through the auxiliary outlet 153 and transported to the enthalpy-increasing inlet 161 via the enthalpy-increasing pipe 159, and then transported to the compressor for enthalpy replenishment.

[0044] The main outlet 152 of the economizer 150 is connected to the third port 143 via a main connecting pipe 157. A main electronic expansion valve 158 is installed on the main connecting pipe 157, which can be used to throttle the refrigerant flowing through the main connecting pipe 157. An auxiliary electronic expansion valve 156 can be installed on the auxiliary connecting pipe 155, which can be used to throttle the refrigerant flowing through the auxiliary connecting pipe 155.

[0045] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0046] The above provides a detailed description of a display circuit provided by the embodiments of this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat pump system, suitable for heat pump equipment, characterized in that, The heat pump system includes a fluorine-cooled radiator, a water-side heat exchanger, an air-side heat exchanger, a first four-way valve, an economizer, a compressor, and a second four-way valve. The fluorine-cooled radiator is used to dissipate heat from the electronic control module. The fluorinated radiator is connected to the water-side heat exchanger via the first four-way valve; the fluorinated radiator is connected to the air-side heat exchanger via the first four-way valve; the compressor is connected to the water-side heat exchanger via the second four-way valve; the compressor is connected to the air-side heat exchanger via the second four-way valve. The economizer is connected to the refrigerant-cooled radiator and the first four-way valve, and the economizer is connected to the compressor through an enthalpy-increasing pipeline. In cooling mode or heating mode, the first four-way valve and the second four-way valve work together to switch the refrigerant flow direction, so that the refrigerant on the condenser side is transported to the economizer through the refrigerant-cooled radiator, and the subcooled refrigerant in the economizer is transported to the compressor through the enthalpy-increasing pipeline for gas replenishment and enthalpy increase.

2. The heat pump system according to claim 1, characterized in that, In the cooling mode, the second four-way valve switches to the second refrigerant flow direction, so that the refrigerant output by the compressor is delivered to the air-side heat exchanger; and the first four-way valve switches to the first refrigerant flow direction, so that the refrigerant output by the air-side heat exchanger is delivered to the fluorinated radiator and further delivered to the economizer. In the heating mode, the second four-way valve switches to the first refrigerant flow direction, so that the refrigerant output by the compressor is delivered to the water-side heat exchanger; and the first four-way valve switches to the second refrigerant flow direction, so that the refrigerant output by the water-side heat exchanger is delivered to the fluorinated radiator and further delivered to the economizer.

3. The heat pump system according to claim 2, characterized in that, The first four-way valve includes a first port, a second port, a third port, and a fourth port; wherein, the first port is connected to the radiator inlet of the fluorine-cooled radiator; the second port is connected to the water-side heat exchanger; the third port is connected to the main outlet of the economizer; and the fourth port is connected to the air-side heat exchanger. When the first four-way valve switches to the first refrigerant flow direction, the first port and the fourth port are connected, and the second port and the third port are connected; when the first four-way valve switches to the second refrigerant flow direction, the first port and the second port are connected, and the third port and the fourth port are connected.

4. The heat pump system according to claim 2, characterized in that, The second four-way valve includes a first channel port, a second channel port, a third channel port, and a fourth channel port; the first channel port is connected to the exhaust port of the compressor; the second channel port is connected to the air-side heat exchanger; the third channel port is connected to the intake port of the compressor; and the fourth channel port is connected to the water-side heat exchanger. When the second four-way valve switches to the first refrigerant flow direction, the first channel port and the fourth channel port are connected, and the second channel port and the third channel port are connected; when the second four-way valve switches to the second refrigerant flow direction, the first channel port and the second channel port are connected, and the third channel port and the fourth channel port are connected.

5. The heat pump system according to claim 4, characterized in that, A gas-liquid separator is also provided between the third channel port and the suction port of the compressor. The gas-liquid separator is used to separate the refrigerant gas and liquid output from the third channel port and then deliver it to the compressor through the suction port.

6. The heat pump system according to claim 1, characterized in that, The outlet of the fluorinated radiator is connected to the main inlet of the economizer; the main inlet and the main outlet are connected by a main pipeline; the fluorinated radiator outputs refrigerant from the outlet and delivers it to the economizer through the main inlet, where it exchanges heat in the main pipeline of the economizer and is then output from the outlet.

7. The heat pump system according to claim 6, characterized in that, The auxiliary inlet of the economizer is connected to the main outlet of the economizer; the auxiliary outlet of the economizer is connected to the enthalpy-increasing inlet of the compressor; the auxiliary inlet and the auxiliary outlet are connected through an auxiliary pipeline; the auxiliary inlet and the main outlet are connected through an auxiliary connecting pipeline. Part of the refrigerant output from the main outlet of the economizer flows back to the auxiliary pipeline via the auxiliary connecting pipe and the auxiliary inlet. After heat exchange between the refrigerant in the auxiliary pipeline and the main pipeline, it is output through the auxiliary outlet and then transported to the compressor for enthalpy boosting via the enthalpy boosting inlet.

8. The heat pump system according to claim 7, characterized in that, The main outlet of the economizer is connected to the third port of the first four-way valve via a main connecting pipe. A main electronic expansion valve is installed on the main connecting pipe, which is used to throttle the refrigerant flowing through the main connecting pipe.

9. The heat pump system according to claim 7, characterized in that, An auxiliary electronic expansion valve is installed on the auxiliary connecting pipe, which is used to throttle the refrigerant flowing through the auxiliary connecting pipe.

10. An air source heat pump unit, characterized in that, The heat pump equipment as described in any one of claims 1 to 9 refers to the air source heat pump unit.

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