Fluid control assembly and thermal management system

Abstract

A fluid control assembly, a valve seat of the fluid control assembly has a first high-pressure flow channel and a first low-pressure flow channel, the first high-pressure flow channel is located at one side of a second accommodating cavity, and the first low-pressure flow channel is located at the other side of the second accommodating cavity. The first high-pressure flow channel and the first low-pressure flow channel are arranged on the two sides of the second accommodating cavity, which helps to reduce the heat transfer between the first high-pressure flow channel and the first low-pressure flow channel.

Description

Technical Field

[0001] This application relates to the field of fluid control technology, specifically to a fluid control component and a thermal management system. Background Technology

[0002] In a thermal management system, multiple valves are required to achieve different operating modes of the system. Taking a vehicle thermal management system as an example, the thermal management system includes multiple refrigerant valves and throttle valves. These valves are installed together on the same valve seat to control the connectivity of the flow channels within the valve seat. The throttle valve can reduce the pressure of the high-pressure refrigerant flowing in the high-pressure flow channel. The low-pressure refrigerant after throttling and pressure reduction flows back to the low-pressure flow channel of the valve seat after passing through the evaporator. This may cause harmful heat transfer between the high-pressure and low-pressure flow channels, thereby affecting the operating efficiency of the thermal management system. Summary of the Invention

[0003] The purpose of this application is to provide a fluid control component that helps reduce heat transfer between the high-pressure and low-pressure channels of the fluid control component.

[0004] To achieve the above objectives, one embodiment of this application adopts the following technical solution:

[0005] A fluid control assembly includes a valve seat and a valve component. The valve seat has a flow channel and a receiving cavity. At least a portion of the valve component is located in the receiving cavity, and the receiving cavity communicates with at least a portion of the flow channel. The valve component includes a throttle valve and a switching valve. A receiving cavity accommodating the throttle valve is defined as a first receiving cavity, and a receiving cavity accommodating the switching valve is defined as a second receiving cavity. The flow channel includes a first high-pressure flow channel and a first low-pressure flow channel, which are not communicated with each other. The first high-pressure flow channel communicates with the first receiving cavity. The first high-pressure flow channel is located on one side of the second receiving cavity, and the first low-pressure flow channel is located on the opposite side of the second receiving cavity.

[0006] One embodiment of this application provides a fluid control assembly. The valve seat of the fluid control assembly has a first high-pressure flow channel and a first low-pressure flow channel. The first high-pressure flow channel is located on one side of the second receiving cavity corresponding to the switching valve, and the first low-pressure flow channel is located on the opposite side of the second receiving cavity corresponding to the switching valve. The arrangement of the first high-pressure flow channel and the first low-pressure flow channel on both sides of the second receiving cavity helps to reduce heat transfer between the first high-pressure flow channel and the first low-pressure flow channel.

[0007] A fluid control assembly includes a valve seat and a valve component. The valve seat has a flow channel and a receiving cavity. At least a portion of the valve component is located in the receiving cavity, and the receiving cavity communicates with at least a portion of the flow channel. The valve component includes a throttling valve and a switching valve. The receiving cavity includes a first receiving cavity and a second receiving cavity. At least a portion of the throttling valve is located in the first receiving cavity, and at least a portion of the switching valve is located in the second receiving cavity. The flow channel includes a first high-pressure flow channel and a first low-pressure flow channel, which are not in communication with each other. The first high-pressure flow channel communicates with the first receiving cavity. The first high-pressure flow channel is located on one side of the second receiving cavity, and the first low-pressure flow channel is located on the opposite side of the second receiving cavity.

[0008] One embodiment of this application provides a fluid control assembly. The valve seat of the fluid control assembly has a first high-pressure flow channel and a first low-pressure flow channel. The first high-pressure flow channel is located on one side of the second receiving cavity corresponding to the switching valve, and the first low-pressure flow channel is located on the opposite side of the second receiving cavity corresponding to the switching valve. The arrangement of the first high-pressure flow channel and the first low-pressure flow channel on both sides of the second receiving cavity helps to reduce heat transfer between the first high-pressure flow channel and the first low-pressure flow channel.

[0009] One embodiment of this application provides a thermal management system, characterized in that it includes a compressor, a first heat exchanger, and the aforementioned fluid control components, wherein the first heat exchanger can be used as a condenser, the first high-pressure flow channel can be connected to the refrigerant passage of the first heat exchanger, and the first low-pressure flow channel can be connected to the inlet of the compressor.

[0010] One embodiment of this application provides a thermal management system including the fluid control component described above. The fluid control component arranges a first high-pressure flow channel and a first low-pressure flow channel on both sides of a second receiving cavity, which helps to reduce heat transfer between the first high-pressure flow channel and the first low-pressure flow channel and helps to improve the efficiency of the thermal management system. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of a fluid control component according to one embodiment of the present invention;

[0012] Figure 2 yes Figure 1 A structural diagram from one perspective;

[0013] Figure 3 yes Figure 1 A structural diagram from another perspective;

[0014] Figure 4 yes Figure 1 A structural diagram from another perspective;

[0015] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the filling of the flow channel, receiving cavity, and plug mounting cavity inside the valve seat;

[0016] Figure 6 yes Figure 5 A structural diagram from one perspective;

[0017] Figure 7 yes Figure 5 A structural diagram from another perspective;

[0018] Figure 8 yes Figure 5 A structural diagram from another perspective;

[0019] Figure 9 yes Figure 5 A structural diagram from the fourth perspective;

[0020] Figure 10 yes Figure 1 A partial sectional view;

[0021] Figure 11 yes Figure 1 Another partial sectional view;

[0022] Figure 12 yes Figure 1 Another partial sectional view;

[0023] Figure 13 yes Figure 1 The fourth type of partial sectional view;

[0024] Figure 14 This is a three-dimensional structural schematic diagram of a fluid control component according to another embodiment of the present invention;

[0025] Figure 15 This is a schematic diagram of the working principle of a thermal management system according to one embodiment of the present invention;

[0026] Figure 16 This is a schematic diagram of the refrigerant flowing within the flow channel of the fluid control component in cooling mode;

[0027] Figure 17 This is a schematic diagram of the refrigerant flowing within the fluid control component in the first heating mode;

[0028] Figure 18 This is a schematic diagram of the refrigerant flowing through the fluid control component in the second heating mode;

[0029] Figure 19 This is a schematic diagram of the refrigerant flowing through the fluid control component in the third heating mode;

[0030] Figure 20 This is a schematic diagram of the refrigerant flowing within the flow channel of the fluid control component during defrosting mode;

[0031] Figure 21 This is a schematic diagram showing the flow of refrigerant within the fluid control component during dehumidification mode; (Figure label:)

[0032] 10. Valve seat; 20. Valve component; 11. Flow channel; 12. Interface; 14. Receiving cavity; 16. Plug; 17. Insulation groove; 100. Mounting side; 101. First side; 102. Second side; 103. Third side; 104. Fourth side; 105. Fifth side;

[0033] 22. First throttle valve; 23. Second throttle valve; 26. Third throttle valve; 28. Fourth throttle valve; 25. First switching valve; 29. ​​Second switching valve; 24. First valve assembly; 21. Second valve assembly; 27. Third valve assembly; 31. Fourth valve assembly; 30. Fifth valve assembly; 33. First check valve; 32. Second check valve; 34. Third check valve; 35. Fourth check valve;

[0034] 111. Second high-pressure flow channel; 112. First high-pressure flow channel; 113. First low-pressure flow channel; 114. Second low-pressure flow channel;

[0035] 1121, First Sub-channel; 1123, Second Sub-channel; 11231, First Section; 11232, Second Section; 1126, Third Section; 1131, Fourth Sub-channel; 1132, Third Sub-channel; 1114, Fifth Sub-channel; 11141, Post-valve Flow Channel; 11142, Pre-valve Flow Channel; 1111, Seventh Sub-channel; 1112, Sixth Sub-channel; 1122, Eighth Sub-channel; 1124, Ninth Sub-channel; 1113, Tenth Sub-channel;

[0036] 1401. First cavity; 1402. Second cavity; 142. First cavity; 143. Second cavity; 145. Third cavity; 146. Fourth cavity; 148. Fifth cavity; 149. Sixth cavity; 144. Seventh cavity; 141. Eighth cavity; 147. Ninth cavity; 150. Tenth cavity; 151. Eleventh cavity;

[0037] 171. Third groove; 172. Second groove; 173. First groove; 161. First plug; 162. Second plug; 163. Third plug; 164. Fourth plug; 165. Fifth plug; 166. Sixth plug; 167. Seventh plug; 168. Eighth plug; 169. Ninth plug;

[0038] 121. First Interface; 122. Second Interface; 123. Third Interface; 124. Fourth Interface; 125. Fifth Interface; 126. Sixth Interface; 127. Seventh Interface; 128. Eighth Interface; 129. Ninth Interface; 130. Tenth Interface; 131. Eleventh Interface; 132. Twelfth Interface; 133. Thirteenth Interface;

[0039] 1. Compressor; 2. First heat exchanger; 3. Second heat exchanger; 4. Third heat exchanger; 5. Fourth heat exchanger; 6. Intermediate heat exchanger; 7. Liquid receiver; 8. Sixth heat exchanger. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0041] Fluid control components can be applied to thermal management systems, which can be vehicle thermal management systems, such as thermal management systems for new energy vehicles.

[0042] One embodiment of this application provides a fluid control component, such as... Figures 1-9 As shown, the fluid control assembly includes a valve seat 10 and a valve component 20. The valve seat 10 has a flow channel 11 and a receiving cavity 14. At least a portion of the valve component 20 is located in the receiving cavity 14, and the receiving cavity 14 communicates with at least a portion of the flow channel 11. The valve component 20 can disconnect, connect, or throttle the flow channel communicating with the receiving cavity 14. The valve component 20 includes a valve assembly and a drive component. A portion of the valve assembly is located in the receiving cavity 14, and another portion of the valve assembly extends above the valve seat 10. The drive component is sleeved on the outer periphery of the portion of the valve assembly extending above the valve seat 10. The drive component is fixedly connected to or limited by the valve seat 10. The fixed connection may include welding, adhesive bonding, threaded connection, etc., and the limited connection may include snap-fit, insertion, etc. In this embodiment, the drive component is fixedly connected to the valve seat 10 by bolts. The drive component can drive the valve assembly to move, thereby controlling the communication relationship of the portion of the flow channel 11.

[0043] The valve seat 10 can be a casting or a forging. In this embodiment, the valve seat 10 includes a mounting side 100, the valve component 20 is mounted on the mounting side 100 of the valve seat 10, and the interface 12 is located on the other side of the valve seat 10. Figure 1As shown, a first direction X, a second direction Y, and a third direction Z are defined. The first direction X is perpendicular to the second direction Y, the first direction X is perpendicular to the third direction Y, and the second direction Y is perpendicular to the third direction Z. A first surface is defined, formed by the first direction X and the third direction Z. The first surface includes multiple parallel planes. In this embodiment, the plane formed by the first sub-flow channel 1121 and the first cavity 142 is also called the first surface. The valve seat 10 is generally a cuboid structure. The thickness direction of the valve seat 10 is parallel to the third direction Z, and the mounting side 100 is perpendicular to the first surface. The receiving cavity 14 is recessed from the mounting side 100 of the valve seat 10 along the third direction Z. The receiving cavity 14 communicates with a portion of the flow channel 11 inside the valve seat 10. The axial direction of the valve component 20 is parallel to the third direction Z. All receiving cavities 14 have corresponding first openings on the mounting side 100 of the valve seat 10. The first openings face the same direction, and at least a portion of the valve component 20 is mounted in the corresponding receiving cavity 14 from the corresponding first opening. All valve components 20 are mounted on the mounting side 100 of the valve seat 10. This arrangement improves the integration of the valve components 20 and reduces the space occupied by the fluid control components. All receiving cavities 14 have corresponding second openings on other sidewalls forming the receiving cavity 14. Depending on the functional requirements of the valve components 20, one receiving cavity 14 may include multiple corresponding second openings, and the receiving cavity 14 communicates with the corresponding flow channel 11 through different second openings.

[0044] Valve component 20 also includes multiple check valves, such as Figure 11 and Figure 12 As shown, the one-way valve is located in the flow channel 11 or the receiving cavity 14. The one-way valve can unidirectionally guide the flow channel 11, or the one-way valve can unidirectionally guide the receiving cavity 14 and the flow channel 11. In this embodiment, the one-way valve includes a first one-way valve 33, a second one-way valve 32, a third one-way valve 34, and a fourth one-way valve 35.

[0045] Valve component 20 includes a refrigerant valve and a throttle valve. The refrigerant valve can connect or disconnect the flow channel 11 connected to its corresponding receiving cavity 14. The throttle valve can connect or throttle the flow channel 11 connected to its corresponding receiving cavity 14. It should be noted that "connection" is defined as maintaining or minimizing the pressure of the working fluid flowing through the valve component (e.g., pressure drop < 1%). "Throttle connection" is defined as the pressure of the working fluid before flowing through the valve component being greater than the pressure after flowing through the valve component. When the throttle valve is fully open, the pressure of the working fluid before and after flowing through the valve component tends to remain unchanged. Therefore, the throttle valve can connect the flow channels 11 on both sides of its corresponding receiving cavity, or the throttle valve can connect, disconnect, or throttle the flow channel 11 connected to its corresponding receiving cavity 14. Unless otherwise specified, the throttle valve in the following text generally does not have a disconnect function. The refrigerant valve includes a switching valve for switching the operating mode of the fluid control component. The switching valve includes a first switching valve 25 and a second switching valve 29. In this embodiment, the refrigerant valve further includes a first valve component 24, a second valve component 21, a third valve component 27, a fifth valve component 30, and a fourth valve component 31. Specifically, the refrigerant valve is a solenoid valve, and the throttling valves include a first throttling valve 22, a second throttling valve 23, a third throttling valve 26, and a fourth throttling valve 28. Of course, in other embodiments, valve component 20 can also be a valve that simultaneously has connecting, disconnecting, and throttling functions, or valve component 20 can be a multi-way valve. In this case, the function of valve component 20 can be adjusted according to the needs of the thermal management system and is not limited to the thermal management system in this application. For example, when the fourth throttling valve 28 is set as a throttling valve with connecting, disconnecting, and throttling functions, the system can eliminate the need for the fifth valve component 30 and the fourth one-way valve 35; the first switching valve 25 is a three-way valve, and the second valve component 21 can be eliminated.

[0046] The valve component 20 corresponds one-to-one with the receiving cavity 14. The receiving cavity 14 that accommodates the throttle valve is defined as the first receiving cavity 1401, and the receiving cavity 14 that accommodates the switching valve is defined as the second receiving cavity 1402. In other words, at least part of the throttle valve is located in the first receiving cavity 1401, and at least part of the switching valve is located in the second receiving cavity 1402. The first receiving cavity 1401 includes a first cavity 142, a second cavity 143, a fourth cavity 146, and a fifth cavity 148. The second receiving cavity 1402 includes a third cavity 145 and a sixth cavity 149. Specifically, at least a portion of the first throttle valve 22 is located in the first cavity 142, at least a portion of the second throttle valve 23 is located in the second cavity 143, at least a portion of the first switching valve 25 is located in the third cavity 145, at least a portion of the third throttle valve 26 is located in the fourth cavity 146, at least a portion of the fourth throttle valve 28 is located in the fifth cavity 148, at least a portion of the second switching valve 29 is located in the sixth cavity 149, at least a portion of the first valve component 24 is located in the seventh cavity 144, at least a portion of the second valve component 21 is located in the eighth cavity 141, at least a portion of the third valve component 27 is located in the ninth cavity 147, at least a portion of the fifth valve component 30 is located in the tenth cavity 150, and at least a portion of the fourth valve component 31 is located in the eleventh cavity 151.

[0047] In this embodiment, as Figures 1 to 2 As shown, 11 valve components 20 are mounted on the same valve seat 10, and the 11 valve components 20 are mounted on the mounting side 100 of the same valve seat 10. Specifically, as... Figure 2 As shown, valve components 20 are arranged in three rows. Along the first direction, the third throttle valve 26, the fourth throttle valve 28, the fifth valve component 30, and the first throttle valve 22 are arranged linearly in sequence; the first switching valve 25, the second switching valve 29, and the second throttle valve 23 are arranged linearly in sequence; and the second valve component 21, the third valve component 27, the first valve component 24, and the fourth valve component 31 are arranged linearly in sequence. Along the second direction, the third throttle valve 26, the first switching valve 25, and the second valve component 21 are arranged linearly in sequence; and the first throttle valve 22, the second throttle valve 23, and the fourth valve component 31 are arranged linearly in sequence. It should be noted that the linear arrangement here does not specifically mean that the geometric centers of multiple valve components 20 are arranged along the same straight line. Multiple valve components 20 arranged along a certain direction without being relatively staggered are considered to be linearly arranged. Of course, in other embodiments, the first direction X and the second direction Y can also be arranged at other angles, unlike the perpendicular arrangement in this embodiment. The multi-row, multi-column arrangement makes the arrangement of multiple valve components 20 more compact, reduces the space occupied by the fluid control components, and improves the integration of the fluid control components.

[0048] like Figure 15As shown, the thermal management system includes a fluid control component and an external thermal management component. The fluid control component integrates the portion highlighted by the dashed line, with the boundary of the dashed line indicating the interface 12 of the fluid control component. The external thermal management component includes a compressor 1, a first heat exchanger 2, a second heat exchanger 3, a third heat exchanger 4, a fourth heat exchanger 5, an intermediate heat exchanger 6, a liquid receiver 7, and a sixth heat exchanger 8. Figures 1-4 As shown, the valve seat 10 of the fluid control assembly includes a first interface 121, a second interface 122, a third interface 123, a fourth interface 124, a fifth interface 125, a sixth interface 126, a seventh interface 127, an eighth interface 128, a ninth interface 129, a tenth interface 130, an eleventh interface 131, a twelfth interface 132, and a thirteenth interface 133. The first interface 121, the third interface 123, the ninth interface 129, and the tenth interface 130 are located on the first side 101, the second interface 122 and the sixth interface 126 are located on the second side 102, the fourth interface 124, the fifth interface 125, the seventh interface 127, the eighth interface 128, and the thirteenth interface 133 are located on the third side 103, and the eleventh interface 131 and the twelfth interface 132 are located on the fifth side 105.

[0049] The outlet of compressor 1 is connected to one end of the refrigerant passage of the sixth heat exchanger 8, and the other end of the refrigerant passage of the sixth heat exchanger 8 is connected to the first interface 121. In some operating modes, the sixth heat exchanger 8 does not work, and the sixth heat exchanger 8 is only used as a passage. It can also be said that the outlet of compressor 1 is connected to the first interface 121. Alternatively, in other embodiments, the thermal management system may not include the sixth heat exchanger 8.

[0050] like Figure 15As shown, one end of the refrigerant passage of the first heat exchanger 2 is connected to the second interface 122, and the other end is connected to the tenth interface 130; one end of the refrigerant passage of the second heat exchanger 3 is connected to the fourth interface 124, and the other end is connected to the fifth interface 125; one end of the refrigerant passage of the third heat exchanger 4 is connected to the seventh interface 127, and the other end is connected to the eighth interface 128; one end of the refrigerant passage of the fourth heat exchanger 5 is connected to the eleventh interface 131, and the other end is connected to the twelfth interface 132. The cavity of the liquid receiver 7 has an inlet and an outlet. The inlet is connected to the ninth interface 129, and the outlet is connected to the high-temperature refrigerant passage of the intermediate heat exchanger 6. The intermediate heat exchanger 6 has a high-temperature refrigerant passage and a low-temperature refrigerant passage. The medium flowing in the high-temperature refrigerant passage can exchange heat with the medium flowing in the low-temperature refrigerant passage. The other end of the high-temperature refrigerant passage is connected to the third interface 123, one end of the low-temperature refrigerant passage is connected to the sixth interface 126, and the other end of the low-temperature refrigerant passage is connected to the inlet of the compressor 1. In one specific embodiment, depending on the functional requirements, the liquid receiver 7 in the thermal management system can also serve as a gas-liquid separator. In other embodiments, the thermal management system may not include the liquid receiver 7 and / or the intermediate heat exchanger 6, in which case the third interface 123 of the fluid control component is connected to the refrigerant passage of the first heat exchanger 2. The thirteenth interface 133 of the fluid control component is connected to the outlet of the compressor 1.

[0051] In the thermal management system applied in this embodiment, the first heat exchanger 2 is an outdoor heat exchanger. In cooling mode, the outdoor heat exchanger functions as an outdoor condenser, and in heating mode, it functions as an outdoor evaporator. The second heat exchanger 3 is an evaporator. The third heat exchanger 4 is a battery cooler or battery cooling plate. In the battery cooler, the refrigerant exchanges heat with the coolant, and the coolant can exchange heat with the battery to heat or cool it. In the battery cooling plate, the refrigerant directly exchanges heat with the battery to heat or cool it. The fourth heat exchanger 5 is a waste heat exchanger. In the waste heat exchanger, the refrigerant exchanges heat with the coolant. The heat of the coolant can come from the engine or other heat-generating equipment, or it can come from a PTC heater. In other embodiments, the thermal management system can be functionally combined and simplified according to different functional requirements, and the corresponding fluid control components can also be structurally simplified according to different functional requirements.

[0052] Figure 5 This is a three-dimensional schematic diagram showing the filling of the flow channel, receiving cavity, and plug mounting cavity inside the valve seat. Figures 6 to 9 for Figure 5 Diagrams from different perspectives. It should be noted that... Figures 5 to 9 The schematic structure of number 16 is a plug mounting cavity. Figures 1 to 4 The schematic structure of number 16 is plug 16.

[0053] Flow channel 11 includes a second high-pressure flow channel 111, a first high-pressure flow channel 112, a second low-pressure flow channel 114, and a first low-pressure flow channel 113. When the fluid control assembly is working, the first high-pressure flow channel 112 carries the high-temperature, high-pressure refrigerant before throttling, the refrigerant temperature in the second high-pressure flow channel 111 is higher than that in the first high-pressure flow channel 112, and the second low-pressure flow channel 114 carries the low-temperature, low-pressure refrigerant after throttling. The first receiving cavity 1401 accommodating the throttling valve is connected to the first high-pressure flow channel 112 and the second low-pressure flow channel 114, respectively. The first low-pressure flow channel 113 circulates the low-temperature, low-pressure refrigerant after heat absorption in the evaporator. The second high-pressure flow channel 111, the first high-pressure flow channel 112, the second low-pressure flow channel 114, and the first low-pressure flow channel 113 are not connected to each other in pairs on the valve seat 10. It should be noted that the non-connection between the flow channels 11 formed by the valve component 20 also belongs to the previously described relative non-connection. For example, the case where the first high-pressure flow channel 112 and the second low-pressure flow channel 114 are connected through the first receiving cavity 1401 corresponding to the throttle valve is considered relative non-connection. Along the second direction Y, the first high-pressure flow channel 112 and the first low-pressure flow channel 113 are distributed on both sides of the valve seat 10. Specifically, the second switching valve 29 and the first switching valve 25 are installed in the middle position of the valve seat 10, and the corresponding second receiving cavity 1402 for accommodating the switching valve is arranged in the middle position of the valve seat 10. The first high-pressure flow channel 112 is located on one side of the second receiving cavity 1402, and the first low-pressure flow channel 113 is located on the opposite side of the second receiving cavity 1402. In other embodiments, only one of the second switching valve 29 and the first switching valve 25 may be included. Positioning the first high-pressure flow channel 112 and the first low-pressure flow channel 113 on opposite sides of the second receiving cavity 1402 helps reduce heat transfer between them. Along the second direction Y, the second high-pressure flow channel 111 is closer to the first low-pressure flow channel 113 than the first high-pressure flow channel 112. This reduces harmful heat transfer between the second high-pressure flow channel 111 and the first high-pressure flow channel 112, and the first low-pressure flow channel 113 can exchange heat with the second high-pressure flow channel 111, effectively functioning as an intermediate heat exchanger 6 in the thermal management system, thereby increasing the superheat of the refrigerant at the compressor inlet in the thermal management system.

[0054] The valve seat 10 includes a heat insulation groove 17, with a first high-pressure flow channel 112 located on one side of the heat insulation groove 17 and a first low-pressure flow channel 113 located on the opposite side of the heat insulation groove 17. In this embodiment, the heat insulation groove 17 includes a third groove portion 171, a second groove portion 172, and a first groove portion 173. The arrangement of the heat insulation groove 17 further reduces heat transfer between the first high-pressure flow channel 112 and the first low-pressure flow channel 113.

[0055] Multiple operating modes can be achieved by switching valve component 20. It should be noted that the same flow channel 11 can flow through refrigerants of different temperatures and pressures in different operating modes. For example, the second sub-flow channel 1123 is the first high-pressure flow channel 112 in battery cooling mode and the second low-pressure flow channel 114 in battery heating mode; the ninth sub-flow channel 1124 is the second low-pressure flow channel 114 in battery cooling mode and the ninth sub-flow channel 1124 is the first high-pressure flow channel 112 in battery heating mode. Therefore, the specific category of flow channel 11, whether it belongs to the first high-pressure flow channel 112, the first low-pressure flow channel 113, the second high-pressure flow channel 111, or the second low-pressure flow channel 114, needs to be described in conjunction with the specific operating mode.

[0056] The thermal management system can achieve cooling modes, including any one or both of passenger cabin cooling and battery cooling. In passenger cabin cooling and battery cooling modes, the sixth heat exchanger 8 is not operational, the first heat exchanger 2 acts as a condenser, and the second and third heat exchangers 3 and 4 act as evaporators. High-temperature refrigerant from the thermal management system compressor 1 flows into the fluid control component through the first port 121. The second valve component 21 opens, connecting the first port 121 and the second port 122. The high-temperature, high-pressure refrigerant flows through the second high-pressure channel 111 and exits the fluid control component through the second port 122, then enters the first heat exchanger 2. In the first heat exchanger 2, the high-temperature refrigerant dissipates heat, reducing its temperature and pressure, and flows into the first high-pressure channel 112 of the fluid control component through the third port 123. The first throttle valve 22 opens, and a portion of the refrigerant expands and becomes low-temperature refrigerant at the valve orifice of the first throttle valve 22, flowing into the second low-pressure channel 114, and then exiting the fluid control component through the fourth port 124. The refrigerant enters the second heat exchanger 3, where it absorbs heat to cool the vehicle's passenger compartment. The second throttle valve 23 opens, and another portion of the refrigerant flowing through the first high-pressure channel 112 expands and becomes low-temperature refrigerant at the valve opening of the second throttle valve 23, flowing into the second low-pressure channel 114. It then flows out of the fluid control component from the seventh port 127 and into the third heat exchanger 4. In the third heat exchanger 4, the low-temperature refrigerant absorbs heat from the battery to cool it, or it absorbs heat from the coolant in the third heat exchanger 4 to indirectly cool the battery. The refrigerant, after absorbing heat, flows into the first low-pressure channel 113 of the fluid control component from the fifth port 125 and the eighth port 128, respectively. After converging in the first low-pressure channel 113, it flows out of the fluid control component from the sixth port 126 and then returns to the inlet of the compressor 1.

[0057] A first valve component 24 is installed on the flow channel 11 connected to the inlet of compressor 1. When the vehicle's battery temperature is low and the thermal management system does not require battery cooling, but only passenger compartment cooling, the first valve component 24 and the second throttle valve 23 are closed, and the third heat exchanger 4 does not work. The second throttle valve 23 can cut off the flow of refrigerant to the third heat exchanger 4. When the first valve component 24 is closed, there is a temperature difference and a pressure difference in the refrigerant flowing in the flow channel 11 on both sides connected to the seventh chamber 144. To prevent the refrigerant in the thermal management system from flowing into the non-working third heat exchanger 4, such as... Figure 12 As shown, a second one-way valve 32 is installed in the receiving cavity 14 corresponding to the first valve component 24. The second one-way valve 32 allows refrigerant flowing in from the eighth port 128 to collect in the first low-pressure flow channel 113 after passing through the open valve port of the first valve component 24. The second one-way valve 32 prevents refrigerant flowing in from the fifth port 125 from leaking into the flow channel 11 connected to the third heat exchanger 4 under the action of pressure difference. In a specific embodiment, the second one-way valve 32 allows the third sub-flow channel 1132 to communicate unidirectionally with the fourth sub-flow channel 1131. The setting of the second one-way valve 32 can reduce refrigerant leakage to non-working thermal management components during normal operation and can improve the operating efficiency of the thermal management system.

[0058] In the vehicle passenger compartment cooling and vehicle battery cooling modes, the second high-pressure flow channel 111 includes a seventh sub-flow channel 1111 and a sixth sub-flow channel 1112. The seventh sub-flow channel 1111 is connected to the first interface 121, and the sixth sub-flow channel 1112 is connected to the second interface 122. The eighth cavity 141 is connected to the seventh sub-flow channel 1111 and the sixth sub-flow channel 1112 respectively. The second valve component 21 can connect or disconnect the seventh sub-flow channel 1111 and the sixth sub-flow channel 1112. The first high-pressure flow channel 112 includes a first sub-flow channel 1121 and a second sub-flow channel 1123. The second low-pressure flow channel includes an eighth sub-flow channel 1122 and a ninth sub-flow channel 1124. The first cavity 142 is connected to the first sub-flow channel 1121 and the eighth sub-flow channel 1122 respectively. The first sub-flow channel 1121 is connected to the third interface 123. The eighth sub-flow channel 1122 is connected to the fourth interface 124. The first throttle valve 22 can throttle the connection between the first sub-flow channel 1121 and the eighth sub-flow channel 1122. The second cavity 143 is connected to the second sub-flow channel 1123 and the ninth sub-flow channel 1124 respectively. The second sub-flow channel 1123 is connected to the first sub-flow channel 1121, or the second sub-flow channel 1123 is connected to another third interface 123. The ninth sub-flow channel 1124 is connected to the seventh interface 127. The second throttle valve 23 can throttle the connection between the second sub-flow channel 1123 and the ninth sub-flow channel 1124. In this embodiment, the tenth cavity 150 is connected to the third section 1126 of the second sub-channel 1123 and the first sub-channel 1121 respectively. When the fifth valve component 30 is opened, the second sub-channel 1123 is connected to the first sub-channel 1121.

[0059] The first low-pressure flow channel 113 includes a fourth sub-flow channel 1131 and a third sub-flow channel 1132. The fourth sub-flow channel 1131 is connected to the fifth interface 125, the sixth interface 126 and the twelfth interface 132 respectively. The third sub-flow channel 1132 is connected to the eighth interface 128. The seventh chamber 144 is connected to the fourth sub-flow channel 1131 and the third sub-flow channel 1132 respectively. The first valve component 24 can connect or disconnect the fourth sub-flow channel 1131 and the third sub-flow channel 1132.

[0060] like Figures 1 to 4 As shown, the first throttling valve 22 and the second throttling valve 23 are arranged on the side of the valve seat 10, which can ensure that the lengths of the eighth sub-channel 1122 and the ninth sub-channel 1124 of the second low-pressure flow channel 114 are relatively short, thereby reducing the heat transfer between the low-temperature and low-pressure refrigerant and the valve seat 10 after throttling, improving the throttling performance of the throttling valve, and reducing the energy consumption of the thermal management system. The eighth sub-flow channel 1122 is farther away from the first low-pressure flow channel 113 than the ninth sub-flow channel 1124. The second section 11232 of the first sub-flow channel 1121 is farther away from the first low-pressure flow channel 113 than the second section 11232 of the second sub-flow channel 1123. At least a portion of the first groove 173 is located between the ninth sub-flow channel 1124 and the first low-pressure flow channel 113, and at least a portion of the first groove 173 is located between the second section 11232 and the first low-pressure flow channel 113. This can further reduce heat transfer in the valve seat 10, reduce flash evaporation of the low-temperature refrigerant in the eighth sub-flow channel 1122 and the ninth sub-flow channel 1124 after the throttling valve, and reduce the energy consumption of the thermal management system. At the same time, it reduces harmful heat transfer between the first high-pressure flow channel 112 and the first low-pressure flow channel 113.

[0061] The thermal management system includes a liquid receiver 7 and an intermediate heat exchanger 6. The second high-pressure flow channel 111 further includes a fifth sub-flow channel 1114, which is connected to the ninth interface 129 and the tenth interface 130, respectively. Refrigerant, after being cooled by the first heat exchanger 2, flows into the fluid control component from the tenth interface 130, flows out to the liquid receiver 7 from the ninth interface 129, and then flows again through the high-temperature refrigerant channel of the intermediate heat exchanger 6, flowing into the fluid control component from the third interface 123. Refrigerant flowing out from the sixth interface 126 flows through the low-temperature refrigerant channel of the intermediate heat exchanger 6 and returns to the inlet of the compressor 1. The refrigerant undergoes further heat exchange in the intermediate heat exchanger 6, which can increase the superheat of the refrigerant at the compressor 1 inlet and reduce the compressor's power consumption.

[0062] like Figure 8As shown, in this embodiment, the first switching valve 25 is a two-way valve. The third chamber 145 corresponding to the first switching valve 25 is connected to the seventh sub-flow channel 1111 and the fifth sub-flow channel 1114 respectively. The first switching valve 25 can connect or disconnect the seventh sub-flow channel 1111 and the fifth sub-flow channel 1114. In other embodiments, the first switching valve 25 is a three-way valve. The fluid control assembly may not have the second valve component 21. The third chamber 145 corresponding to the first switching valve 25 is connected to the seventh sub-flow channel 1111, the sixth sub-flow channel 1112, and the fifth sub-flow channel 1114 respectively. The first switching valve 25 can disconnect and connect the seventh sub-flow channel 1111 and the sixth sub-flow channel 1112, and the first switching valve 25 can disconnect and connect the seventh sub-flow channel 1111 and the fifth sub-flow channel 1114.

[0063] like Figure 7 As shown, along the first direction, the first sub-channel 1121 includes multiple segments. The third throttle valve 26, the fourth throttle valve 28, the fifth valve component 30, and the first throttle valve 22 are arranged linearly in sequence. The fourth chamber 146, the fifth chamber 148, the tenth chamber 150, and the first chamber 142 connect the multiple segments of the first sub-channel 1121 into a whole. In this embodiment, the first sub-channel 1121 is a straight-through channel along the second direction Y. Figure 6 and Figure 7 As shown, the second sub-channel 1123 includes a first section 11231, a second section 11232, and a third section 1126. One end of the first section 11231 is connected to one end of the second section 11232, and the other end of the first section 11231 is connected to the third section 1126. The second section 11232 is connected to the second cavity 143. The sixth cavity 149 is connected to both the first section 11231 and the second section 11232. The eleventh interface 131 is connected to the second sub-channel 1123 through the sixth cavity 149. The second switching valve... 29 can connect or disconnect the second sub-flow channel 1123 and the eleventh interface 131. The third segment 1126 is connected to the fifth chamber 148 and the tenth chamber 150 respectively. The fourth throttle valve 28 can throttle the connection between the first sub-flow channel 1121 and the third segment 1126. The fifth valve component 30 can connect or disconnect the first sub-flow channel 1121 and the third segment 1126. In other embodiments, the fourth throttle valve 28 has the functions of connecting, disconnecting and throttling connection at the same time, so the fifth valve component 30 is not required in the fluid control assembly.

[0064] The third segment 1126 and the first sub-channel 1121 are arranged along the axis of the first cavity 142. In other words, along the axis of the first cavity 142, the opening of the first cavity 142 is defined as facing upwards, and the third segment 1126 is located below the first sub-channel 1121. The third segment 1126 is connected to the first segment 11231, meaning that at least part of the first segment 11231 is also located below the first sub-channel 1121. In other words, along the axial direction of the first cavity 142, the third segment 1126 and the first sub-channel 1121 are spaced apart, and the first segment 11231 and the first sub-channel 1121 are spaced apart. Of course, in other embodiments, the third segment 1126 and the first sub-channel 1121 may also be partially spaced apart, and the first segment 11231 and the first sub-channel 1121 may also be partially spaced apart. This arrangement facilitates the placement of the valve component 20, which controls the connection between the first sub-channel 1121 and the third segment 1126. The valve component 20 and the first throttle valve 22 can be positioned at the same height along the axial direction of the first cavity 142. Specifically, in this embodiment, the fifth valve component 30 and the first throttle valve 22 are at the same height. This arrangement improves the integration of the fluid control components and reduces the space required. At least a portion of the axis of the first segment 11231 is staggered with the first sub-channel 1121, which facilitates the centralized placement of the first cavity 142 and the second cavity 143. This allows for the concentrated arrangement of the first sub-channel 1121 and the second sub-channel 1123, helping to address the heat transfer issue between the first high-pressure channel 112 and the first low-pressure channel 113.

[0065] At least a portion of the second groove 172 is located between the fifth sub-channel 1114 and the first section 11231 of the second sub-channel 1123, which can reduce harmful heat transfer between the second high-pressure channel 111 and the first high-pressure channel 112.

[0066] In cooling mode, the first switching valve 25 is closed. The seventh sub-channel 1111 on one side of the first switching valve 25 flows through the refrigerant that has not been heat-exchanged at the compressor outlet, while the fifth sub-channel 1114 on the other side of the first switching valve 25 flows through the refrigerant that has been condensed by the first heat exchanger 2. At least a portion of the third tank 171 is located between the seventh sub-channel 1111 and the fifth sub-channel 1114, which can reduce harmful heat transfer between the seventh sub-channel 1111 and the fifth sub-channel 1114.

[0067] like Figure 11As shown, the first one-way valve 33 is installed in the fifth sub-flow channel 1114. The first one-way valve 33 divides the fifth sub-flow channel 1114 into a downstream flow channel 11141 and a upstream flow channel 11142. The first one-way valve 33 can unidirectionally guide the upstream flow channel 11142 to the downstream flow channel 11141. The fourth chamber 146 is connected to the upstream flow channel 11142 of the fifth sub-flow channel 1114. The upstream flow channel 11142 is connected to the tenth interface 130. The downstream flow channel 11141 is connected to the third chamber 145. The downstream flow channel 11141 is connected to the ninth interface 129. The third throttle valve 26 can throttle the connection between the first sub-flow channel 1121 and the upstream flow channel 11142 of the fifth sub-flow channel 1114.

[0068] In cooling mode, the third throttle valve 26 is closed, the first switching valve 25 is closed, and the refrigerant flows from the tenth port 130 into the pre-valve flow channel 11142, flows through the first one-way valve 33, and flows unidirectionally to the post-valve flow channel 11141, and flows out of the fluid control component from the ninth port 129. In the first heating mode, when the third throttle valve 26 is open, the first switching valve 25 is open, and the seventh sub-flow channel 1111 and the post-valve flow channel 11141 of the fifth sub-flow channel 1114 are connected. The post-valve flow channel 11141 flows with high-temperature and high-pressure refrigerant. The first sub-flow channel 1121 and the pre-valve flow channel 11142 are throttled and connected, and the pre-valve flow channel 11142 flows with low-temperature and low-pressure refrigerant. Under the action of the refrigerant pressure difference, the unidirectional flow from the pre-valve flow channel 11142 to the post-valve flow channel 11141 is stopped, so that the pre-valve flow channel 11142 and the post-valve flow channel 11141 are relatively disconnected. The first check valve 33 is set up, and combined with the pressure difference in the working mode, the fifth sub-channel 1114 can be used for both the cooling mode and the first heating mode.

[0069] The fourth one-way valve 35 is installed in the tenth chamber 150. The fourth one-way valve 35 can reduce refrigerant leakage from the third section 1126 to the first sub-flow channel 1121. It should be noted that the installation structure of the third one-way valve 34 and the fourth one-way valve 35 is similar to that of the second one-way valve 32, and will not be described in detail here.

[0070] like Figure 6 and Figure 8 As shown, the flow channel 11 includes a tenth sub-flow channel 1113, which is connected to the thirteenth interface 133. The eleventh cavity 151 is connected to the tenth sub-flow channel 1113 and the third sub-flow channel 1132 respectively. The fourth valve component 31 can connect or disconnect the tenth sub-flow channel 1113 and the third sub-flow channel 1132.

[0071] like Figure 12 and Figure 6As shown, the ninth chamber 147 corresponding to the third valve component 27 is connected to the sixth sub-flow channel 1112 and the fourth sub-flow channel 1131 respectively. The third one-way valve 34 is installed in the ninth chamber 147. The third one-way valve 34 can reduce the leakage of refrigerant from the fourth sub-flow channel 1131 to the sixth sub-flow channel 1112.

[0072] In vehicle passenger compartment cooling and vehicle battery cooling modes: As described above, the second valve component 21, the first throttle valve 22, the second throttle valve 23, and the first valve component 24 are open. Additionally, the fifth valve component 30 is open, and the remaining valve components 20 are closed. That is to say, in this default operating mode, the second valve component 21, the first valve component 24, and the fifth valve component 30 in the refrigerant valve are normally open valves, while the first switching valve 25, the third valve component 27, the second switching valve 29, and the fourth valve component 31 are normally closed valves.

[0073] like Figures 1 to 4 As shown, combined with Figure 9 The diagram shows a flow channel filled with solid material. Along the thickness direction of the valve seat 10, the flow channels 11 distributed within the valve seat 10 include multiple layers. For example, the fourth sub-flow channel 1131 and the first sub-flow channel 1121 are located at different thickness positions within the valve seat 10. Most of the flow channels 11 are distributed perpendicular to the thickness direction of the valve seat 10. Specifically, the flow channels 11 include flow channels 11 extending along the first direction X and flow channels 11 extending along the second direction Y, such as... Figure 5 and Figure 6 As shown, the first sub-flow channel 1121, the second sub-flow channel 1123, the fourth sub-flow channel 1131, and the third sub-flow channel 1132 all include segmented flow channels extending along the first direction X. The first segment 11231 of the second sub-flow channel 1123 intersects with the first sub-flow channel 1121 in different planes. The fourth sub-flow channel 1131 includes segmented flow channels intersecting within the same plane. The seventh sub-flow channel 1111, the fifth sub-flow channel 1114, the second sub-flow channel 1123, and the fourth sub-flow channel 1131 all include flow channel segments extending along the second direction Y. The flow channels 11 are distributed perpendicular to the thickness direction of the valve seat 10, facilitating side drilling for machining the flow channels 11.

[0074] In this embodiment, part of the flow channel 11 is a through hole, and part of the flow channel 11 includes a blind hole section. When the flow channel 11 is long, it is designed as a through hole to facilitate machining the flow channel 11 from both sides. The flow channel 11 including the blind hole section can reduce the number of process holes. If the opening of the flow channel 11 is not used as an interface 12 to communicate with an external thermal management component, it needs to be sealed with a plug 16 as a process hole. In this embodiment, as Figures 1-4As shown, the seventh sub-channel 1111 has a first plug 161 at its opening on the second side 102; the fourth sub-channel 1131, a segmented channel along the second direction Y, has a second plug 162 at its opening on the second side 102; the sixth sub-channel 1112 has a third plug 163 at its opening on the first side 101; the fourth sub-channel 1131 has a fourth plug 164 at its opening on the first side 101; the fifth sub-channel 1114 has a fifth plug 165 at its opening on the fourth side 104; the second sub-channel 1123 has a sixth plug 166 at its opening on the fourth side 104; the first sub-channel 1121 has a seventh plug 167 at its opening on the third side 103; the third segment 1126 has an eighth plug 168 at its opening on the third side 103; and the second sub-channel 1123 has a ninth plug 169 at its opening on the third side 103.

[0075] In other embodiments, such as Figure 14 As shown, the second interface 122 and the sixth interface 126 are located on the first side 101. The opening of the sixth sub-flow channel 1112 on the first side 101 is the second interface 122, and the sixth sub-flow channel 1112 has no opening on the second side 102. The opening of the fourth sub-flow channel 1131 on the first side 101 is the sixth interface 126, and the fourth sub-flow channel 1131 has no opening on the second side 102. This structure reduces the number of process holes in the valve seat 10, reduces the number of plugs 16, and reduces the number of processing steps for the flow channel 11. Furthermore, the first interface 121 and the sixth interface 126 connected to the compressor 1 are located on the same side, the second interface 122 and the tenth interface 130 connected to the first heat exchanger 2 are located on the same side, or the second interface 122 and the third interface 123 connected to the first heat exchanger 2 are located on the same side, facilitating connection to external thermal management components and communication with the channels of external thermal management components.

[0076] In other embodiments, the fourth sub-channel 1131 may not have an opening on the first side 101, and the opening of the fourth sub-channel 1131 on the second side 102 may be a sixth interface 126. The fourth sub-channel 1131 includes a bend. Compared to this embodiment, where the opening of the fourth sub-channel 1131 on the first side 101 is a process hole and the opening on the second side 102 is a sixth interface 126, the structure of this embodiment is more convenient for the processing of the fourth sub-channel 1131 and the cleaning of dopants within the channel.

[0077] The fluid control component in this embodiment is applied to a thermal management system and can also achieve the following operating modes:

[0078] First heating mode: The sixth heat exchanger 8 is a condenser, where the high-temperature refrigerant exchanges heat with the air in the passenger cabin, enabling passenger cabin heating. The first heat exchanger 2 is an evaporator, where the low-temperature refrigerant, after being throttled by the third throttle valve 26, absorbs heat from the outside air. The second heat exchanger 3, the third heat exchanger 4, and the fourth heat exchanger 5 are not in operation.

[0079] In this operating mode, the first switching valve 25, the third throttle valve 26, and the third valve component 27 are open, while the remaining valve components 20 are closed.

[0080] The first high-pressure flow channel 112 includes a first sub-flow channel 1121, the second low-pressure flow channel 114 includes a pre-valve flow channel 11142, the first low-pressure flow channel 113 includes a fourth sub-flow channel 1131 and a sixth sub-flow channel 1112, and the second high-pressure flow channel 111 includes a seventh sub-flow channel 1111 and a post-valve flow channel 11141.

[0081] Second heating mode: As described in the first heating mode, the sixth heat exchanger 8 is a condenser, and the fourth heat exchanger 5 is an evaporator. The low-temperature refrigerant, after being throttled by the fourth throttle valve 28, can absorb heat from the coolant in the fourth heat exchanger 5. The first heat exchanger 2, the second heat exchanger 3, and the third heat exchanger 4 are not in operation.

[0082] In this operating mode, the first switching valve 25, the fourth throttle valve 28, and the second switching valve 29 are open, while the remaining valve components 20 are closed.

[0083] The first high-pressure flow channel 112 includes a first sub-flow channel 1121, the second low-pressure flow channel 114 includes a second sub-flow channel 1123, the first low-pressure flow channel 113 includes a fourth sub-flow channel 1131, and the second high-pressure flow channel 111 includes a seventh sub-flow channel 1111 and a downstream flow channel 11141.

[0084] Third heating mode: The third heat exchanger 4 is a condenser, and the fourth heat exchanger 5 is an evaporator. The high-temperature refrigerant from the compressor 1 outlet flows from the eighth port 128 to the third heat exchanger 4 through the valve port of the fourth valve component 31. The high-temperature refrigerant dissipates heat in the third heat exchanger 4, providing heating for the battery. The low-temperature refrigerant, after being throttled by the second throttling valve 23, absorbs heat from the coolant in the fourth heat exchanger 5. The sixth heat exchanger 8, the first heat exchanger 2, and the second heat exchanger 3 are not in operation.

[0085] In this operating mode, the fourth valve component 31, the second throttle valve 23, and the second switching valve 29 are open, while the remaining valve components 20 are closed.

[0086] The first high-pressure flow channel 112 includes a ninth sub-flow channel 1124, the second low-pressure flow channel 114 includes a second sub-flow channel 1123, the first low-pressure flow channel 113 includes a fourth sub-flow channel 1131, and the second high-pressure flow channel 111 includes a tenth sub-flow channel 1113 and a third sub-flow channel 1132.

[0087] Fourth heating mode: The fourth heating mode is a combination of the second and third heating modes. The sixth heat exchanger 8 is a condenser. The low-temperature refrigerant throttled by the fourth throttling valve 28 and the low-temperature refrigerant throttled by the second throttling valve 23 converge and flow to the fourth heat exchanger 5 through the valve port of the second switching valve 29. The first heat exchanger 2 and the second heat exchanger 3 are not operating.

[0088] In this operating mode, the first switching valve 25, the fourth throttle valve 28, the fourth valve component 31, the second throttle valve 23, and the second switching valve 29 are open, while the remaining valve components 20 are closed.

[0089] Fifth heating mode: The fifth heating mode is a combination of the first, second, and third heating modes. The sixth heat exchanger 8 is a condenser. The first heat exchanger 2 is an evaporator. The low-temperature refrigerant in the fourth heat exchanger 5 absorbs heat from the coolant, while the high-temperature refrigerant dissipates heat in the third heat exchanger 4 to power the battery. The second heat exchanger 3 is not operational.

[0090] In this operating mode, the first switching valve 25, the third throttle valve 26, the third valve component 27, the fourth throttle valve 28, the second switching valve 29, the fourth valve component 31, and the second throttle valve 23 are open, while the remaining valve components 20 are closed.

[0091] Defrosting Mode: The sixth heat exchanger 8 is the channel, the first heat exchanger 2 is the condenser, and the fourth heat exchanger 5 is the evaporator. The high-temperature refrigerant flowing from the compressor 1 flows to the first heat exchanger 2 through the valve port of the second valve component 21. The high-temperature refrigerant dissipates heat in the first heat exchanger 2, defrosting it. The low-temperature refrigerant, after being throttled by the fourth throttling valve 28, flows to the fourth heat exchanger 5, where it absorbs heat from the coolant. The second heat exchanger 3 and the third heat exchanger 4 are not in operation.

[0092] In this operating mode, the second valve component 21, the fourth throttle valve 28, and the second switching valve 29 are open, while the remaining valve components 20 are closed.

[0093] Dehumidification mode: The sixth heat exchanger 8 is a condenser, and the second heat exchanger 3 is an evaporator. The high-temperature refrigerant in the condenser exchanges heat with the air in the passenger cabin, raising the temperature of the passenger cabin air. The low-temperature refrigerant, after being throttled by the first throttling valve 22, flows through the second heat exchanger 3. The moisture in the passenger cabin air liquefies and condenses upon encountering the lower-temperature second heat exchanger 3, thereby achieving dehumidification of the passenger cabin air. The first heat exchanger 2, the third heat exchanger 4, and the fourth heat exchanger 5 are not in operation.

[0094] In this operating mode, the first switching valve 25 and the first throttle valve 22 are open, while the remaining valve components 20 are closed.

[0095] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. For example, the directional definitions such as "front", "back", "left", "right", "up", and "down" are used. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A fluid control assembly comprising a valve seat (10) and a valve component (20), the valve seat (10) having a flow channel (11) and a receiving cavity (14), at least a portion of the valve component (20) being located in the receiving cavity (14), the receiving cavity (14) communicating with at least a portion of the flow channel (11), the valve component (20) comprising a throttle valve and a switching valve, the receiving cavity (14) accommodating the throttle valve being defined as a first receiving cavity (1401), and the receiving cavity (1401) accommodating the switching valve being defined as... The second receiving cavity (1402) is a flow channel (11), which includes a first high-pressure flow channel (112) and a first low-pressure flow channel (113). The first high-pressure flow channel (112) and the first low-pressure flow channel (113) are not connected to each other. The first high-pressure flow channel (112) is connected to the first receiving cavity (1401). The first high-pressure flow channel (112) is located on one side of the second receiving cavity (1402), and the first low-pressure flow channel (113) is located on the opposite side of the second receiving cavity (1402). The throttle valve includes a first throttle valve (22) and a second throttle valve (23). The first receiving cavity (1401) includes a first cavity (142) and a second cavity (143). At least a portion of the first throttle valve (22) is located in the first cavity (142), and at least a portion of the second throttle valve (23) is located in the second cavity (143). The first high-pressure flow channel (112) includes a first sub-flow channel (1121) and a second sub-flow channel (1123). The first sub-flow channel (1121) is connected to the first cavity (142), and a portion of the flow channel of the second sub-flow channel (1123) is connected to the second cavity (143). Along the axial direction of the first cavity (142), a portion of the flow channel of the second sub-flow channel (1123) is spaced apart from the first sub-flow channel (1121).

2. A fluid control assembly, comprising a valve seat (10) and a valve component (20), the valve seat (10) having a flow channel (11), the valve seat (10) having a receiving cavity (14), at least a portion of the valve component (20) being located in the receiving cavity (14), the receiving cavity (14) communicating with at least a portion of the flow channel (11), the valve component (20) including a throttle valve and a switching valve, the receiving cavity (14) including a first receiving cavity (1401) and a second receiving cavity (1402), at least a portion of the throttle valve being located in the first receiving cavity (1401). At least a portion of the switching valve is located in the second receiving cavity (1402). The flow channel (11) includes a first high-pressure flow channel (112) and a first low-pressure flow channel (113). The first high-pressure flow channel (112) and the first low-pressure flow channel (113) are not connected to each other. The first high-pressure flow channel (112) is connected to the first receiving cavity (1401). The first high-pressure flow channel (112) is located on one side of the second receiving cavity (1402), and the first low-pressure flow channel (113) is located on the opposite side of the second receiving cavity (1402). The throttle valve includes a first throttle valve (22) and a second throttle valve (23). The first receiving cavity (1401) includes a first cavity (142) and a second cavity (143). At least a portion of the first throttle valve (22) is located in the first cavity (142), and at least a portion of the second throttle valve (23) is located in the second cavity (143). The first high-pressure flow channel (112) includes a first sub-flow channel (1121) and a second sub-flow channel (1123). The first sub-flow channel (1121) is connected to the first cavity (142), and a portion of the flow channel of the second sub-flow channel (1123) is connected to the second cavity (143). Along the axial direction of the first cavity (142), a portion of the flow channel of the second sub-flow channel (1123) is spaced apart from the first sub-flow channel (1121).

3. The fluid control assembly according to claim 1 or 2, characterized in that, The valve seat (10) includes a heat insulation groove (17), the first high-pressure flow channel (112) is located on one side of the heat insulation groove (17), and the first low-pressure flow channel (113) is located on the opposite side of the heat insulation groove (17).

4. The fluid control component according to any one of claims 1-2, characterized in that, The second sub-channel (1123) includes a first segment (11231) and a second segment (11232). One end of the first segment (11231) is connected to one end of the second segment (11232). The second segment (11232) is connected to the second cavity (143). Along the axial direction of the first cavity (142), at least a portion of the first segment (11231) is spaced apart from the first sub-channel (1121), and at least a portion of the axis of the first segment (11231) is staggered with the axis of the first sub-channel (1121).

5. The fluid control assembly according to claim 4, characterized in that, The flow channel (11) includes a second high-pressure flow channel (111). When the fluid control assembly is working, the temperature of the refrigerant in the second high-pressure flow channel (111) is greater than the temperature of the refrigerant in the first section (11231). The valve seat (10) includes a heat insulation groove (17). The second high-pressure flow channel (111) is located on one side of the heat insulation groove (17), and the first section (11231) is located on the opposite side of the heat insulation groove (17).

6. The fluid control assembly according to claim 5, characterized in that, The valve component (20) includes a first valve component (24), the first low-pressure flow channel (113) includes a third sub-flow channel (1132) and a fourth sub-flow channel (1131), and the receiving cavity (14) corresponding to the first valve component (24) is connected to the fourth sub-flow channel (1131) and the third sub-flow channel (1132) respectively.

7. The fluid control assembly according to claim 6, characterized in that, The switching valve includes a first switching valve (25), the second receiving cavity (1402) includes a third cavity (145), at least a portion of the first switching valve (25) is located in the third cavity (145), and the second high-pressure flow channel (111) includes a fifth sub-flow channel (1114), a sixth sub-flow channel (1112) and a seventh sub-flow channel (1111). The first switching valve (25) is a three-way valve. The third chamber (145) is connected to the fifth sub-channel (1114), the sixth sub-channel (1112), and the seventh sub-channel (1111) respectively. The first switching valve (25) can disconnect or connect the fifth sub-channel (1114) and the seventh sub-channel (1111). The first switching valve (25) can disconnect or connect the seventh sub-channel (1111) and the sixth sub-channel (1112). Alternatively, the first switching valve (25) may be a two-way valve, and the valve component (20) may also include a second valve component (21). The third chamber (145) is connected to the fifth sub-channel (1114) and the seventh sub-channel (1111) respectively, and the receiving chamber (14) corresponding to the second valve component (21) is connected to the seventh sub-channel (1111) and the sixth sub-channel (1112) respectively.

8. The fluid control assembly according to claim 7, characterized in that, The throttle valve includes a third throttle valve (26), the first receiving cavity (1401) includes a fourth cavity (146), at least a portion of the third throttle valve (26) is located in the fourth cavity (146), the fourth cavity (146) is connected to the first sub-flow channel (1121), the valve component (20) includes a third valve component (27), the receiving cavity (14) corresponding to the third valve component (27) is connected to the sixth sub-flow channel (1112) and the first low-pressure flow channel (113).

9. The fluid control assembly according to claim 8, characterized in that, The valve component (20) includes a first one-way valve (33), the fifth sub-flow channel (1114) includes a downstream flow channel (11141) and a upstream flow channel (11142), the first one-way valve (33) is installed between the downstream flow channel (11141) and the upstream flow channel (11142), the first one-way valve (33) can unidirectionally guide the upstream flow channel (11142) to the downstream flow channel (11141), and the fourth chamber (146) is connected to the upstream flow channel (11142).

10. The fluid control assembly according to claim 7, characterized in that, The throttling valve includes a fourth throttling valve (28), the first receiving cavity (1401) includes a fifth cavity (148), at least a portion of the fourth throttling valve (28) is located in the fifth cavity (148), the fifth cavity (148) is connected to the first sub-channel (1121), the second sub-channel (1123) includes a third segment (1126), the fifth cavity (148) is connected to the third segment (1126), and the other end of the first segment (11231) is connected to the third segment (1126). 126) Connected, along the axial direction of the first cavity (142), at least part of the third segment (1126) is spaced apart from the first sub-channel (1121) and arranged, the switching valve includes a second switching valve (29), the second receiving cavity (1402) includes a sixth cavity (149), at least part of the second switching valve (29) is located in the sixth cavity (149), the sixth cavity (149) is connected to the first segment (11231) and the second segment (11232) respectively.

11. The fluid control assembly according to claim 8, characterized in that, The throttling valve includes a fourth throttling valve (28), the first receiving cavity (1401) includes a fifth cavity (148), at least a portion of the fourth throttling valve (28) is located in the fifth cavity (148), the fifth cavity (148) is connected to the first sub-channel (1121), the second sub-channel (1123) includes a third segment (1126), the fifth cavity (148) is connected to the third segment (1126), and the other end of the first segment (11231) is connected to the third segment (1126). 126) Connected, along the axial direction of the first cavity (142), at least part of the third segment (1126) is spaced apart from the first sub-channel (1121) and arranged, the switching valve includes a second switching valve (29), the second receiving cavity (1402) includes a sixth cavity (149), at least part of the second switching valve (29) is located in the sixth cavity (149), the sixth cavity (149) is connected to the first segment (11231) and the second segment (11232) respectively.

12. The fluid control assembly according to claim 10 or 11, characterized in that, The valve component (20) includes a fourth valve component (31), and the receiving cavity (14) corresponding to the fourth valve component (31) is connected to the third sub-channel (1132).

13. The fluid control assembly according to claim 1 or 2, characterized in that, The flow channel (11) includes a first sub-flow channel (1121), a second sub-flow channel (1123), a third sub-flow channel (1132), a fourth sub-flow channel (1131), a fifth sub-flow channel (1114), a sixth sub-flow channel (1112), a seventh sub-flow channel (1111), an eighth sub-flow channel (1122), and a ninth sub-flow channel (1124). The valve seat (10) has an interface (12), which includes a first interface (121), a second interface (122), a third interface (123), a fourth interface (124), a fifth interface (125), a sixth interface (126), a seventh interface (127), an eighth interface (128), a ninth interface (129), a tenth interface (130), an eleventh interface (131), and a twelfth interface (132). The first sub-channel (1121) is connected to the third interface (123), the second sub-channel (1123) is connected to the eleventh interface (131), the fifth sub-channel (1114) is connected to the ninth interface (129) and the tenth interface (130) respectively, the fourth sub-channel (1131) is connected to the fifth interface (125), the sixth interface (126) and the twelfth interface (132) respectively, the third sub-channel (1132) is connected to the eighth interface (128), the eighth sub-channel (1122) is connected to the fourth interface (124), the seventh sub-channel (1111) is connected to the first interface (121), the sixth sub-channel (1112) is connected to the second interface (122), and the ninth sub-channel (1124) is connected to the seventh interface (127).

14. A thermal management system, characterized in that, Includes a compressor (1), a first heat exchanger (2), and a fluid control assembly according to any one of claims 1-12, wherein the first heat exchanger (2) can be used as a condenser, the first high-pressure flow channel (112) can be connected to the refrigerant passage of the first heat exchanger (2), and the first low-pressure flow channel (113) can be connected to the inlet of the compressor (1).

15. The thermal management system according to claim 14, characterized in that, The thermal management system includes a liquid receiver (7) and an intermediate heat exchanger (6). The cavity of the liquid receiver (7) is connected to the high-temperature refrigerant channel of the intermediate heat exchanger (6). The first high-pressure flow channel (112) is connected to the high-temperature refrigerant channel of the intermediate heat exchanger (6). The first low-pressure flow channel (113) is connected to the low-temperature refrigerant channel of the intermediate heat exchanger (6). The low-temperature refrigerant channel of the intermediate heat exchanger (6) is connected to the inlet of the compressor (1).

16. The thermal management system according to claim 14 or 15, characterized in that, The thermal management system further includes a second heat exchanger (3), a third heat exchanger (4), and a fourth heat exchanger (5). The valve seat (10) has an interface (12), which includes a first interface (121), a second interface (122), a third interface (123), a fourth interface (124), a fifth interface (125), a sixth interface (126), a seventh interface (127), an eighth interface (128), an eleventh interface (131), and a twelfth interface (132). The first high-pressure flow channel (112) is connected to the third interface (123), and the first low-pressure flow channel (113) is connected to... The sixth interface (126) is connected, the first interface (121) is connected to the outlet of the compressor (1), the refrigerant passage of the first heat exchanger (2) is connected to the second interface (122), the refrigerant passage of the second heat exchanger (3) is connected to the fourth interface (124) and the fifth interface (125) respectively, the refrigerant passage of the third heat exchanger (4) is connected to the seventh interface (127) and the eighth interface (128) respectively, and the refrigerant passage of the fourth heat exchanger (5) is connected to the eleventh interface (131) and the twelfth interface (132) respectively; The other end of the refrigerant passage of the first heat exchanger (2) is connected to the third interface (123), and the sixth interface (126) is connected to the inlet of the compressor (1); Alternatively, the thermal management system may also include a liquid receiver (7) and an intermediate heat exchanger (6), and the interface (12) may also include a ninth interface (129) and a tenth interface (130). The intermediate heat exchanger (6) includes a high-temperature refrigerant channel and a low-temperature refrigerant channel. The medium flowing in the high-temperature refrigerant channel and the low-temperature refrigerant channel can exchange heat. The other end of the refrigerant channel of the first heat exchanger (2) is connected to the tenth interface (130). The cavity of the liquid receiver (7) is connected to the ninth interface (129) and the high-temperature refrigerant channel of the intermediate heat exchanger (6) respectively. The other end of the high-temperature refrigerant channel of the intermediate heat exchanger (6) is connected to the third interface (123). One end of the low-temperature refrigerant channel is connected to the sixth interface (126). The other end of the low-temperature refrigerant channel is connected to the inlet of the compressor (1).

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