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CN-118669573-B - Fluid control assembly and thermal management system

CN118669573BCN 118669573 BCN118669573 BCN 118669573BCN-118669573-B

Abstract

A valve seat of the fluid control assembly is provided with a first high-pressure flow passage and a first low-pressure flow passage, the first high-pressure flow passage is positioned on one side of a second accommodating cavity, the first low-pressure flow passage is positioned on the opposite side of the second accommodating cavity, the first high-pressure flow passage and the first low-pressure flow passage are arranged on two sides of the second accommodating cavity, and heat transfer between the first high-pressure flow passage and the first low-pressure flow passage is reduced.

Inventors

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Assignees

  • 绍兴三花新能源汽车部件有限公司

Dates

Publication Date
20260512
Application Date
20230314

Claims (16)

  1. 1.A fluid control assembly comprising a valve seat (10) and a valve member (20), the valve seat (10) having a flow passage (11), the valve seat (10) having a receiving chamber (14), at least part of the valve member (20) being located in the receiving chamber (14), the receiving chamber (14) being in communication with at least part of the flow passage (11), the valve member (20) comprising a throttle valve and a switching valve, the receiving chamber (14) defining the throttle valve being a first receiving chamber (1401), the receiving chamber (14) defining the switching valve being a second receiving chamber (1402), the flow passage (11) comprising a first high pressure flow passage (112) and a first low pressure flow passage (113), the first high pressure flow passage (112) being in communication with the first receiving chamber (1401), the first high pressure flow passage (112) being located on one side of the second receiving chamber (1402) and the first low pressure flow passage (113) being located on the opposite side of the second receiving chamber (1402); The throttle valve comprises a first throttle valve (22) and a second throttle valve (23), the first accommodating cavity (1401) comprises a first cavity (142) and a second cavity (143), at least part of the first throttle valve (22) is located in the first cavity (142), at least part of the second throttle valve (23) is located in the second cavity (143), the first high-pressure runner (112) comprises a first sub runner (1121) and a second sub runner (1123), the first sub runner (1121) is communicated with the first cavity (142), part of the second sub runner (1123) is communicated with the second cavity (143), and part of the second sub runner (1123) is arranged at intervals with the first sub runner (1121) along the axis direction of the first cavity (142).
  2. 2. A fluid control assembly comprising a valve seat (10) and a valve member (20), the valve seat (10) having a flow passage (11), the valve seat (10) having a receiving chamber (14), at least part of the valve member (20) being located in the receiving chamber (14), the receiving chamber (14) being in communication with at least part of the flow passage (11), the valve member (20) comprising a throttle valve and a switching valve, the receiving chamber (14) comprising a first receiving chamber (1401) and a second receiving chamber (1402), at least part of the throttle valve being located in the first receiving chamber (1401), at least part of the switching valve being located in the second receiving chamber (1402), the flow passage (11) comprising a first high pressure flow passage (112) and a first low pressure flow passage (113), the first high pressure flow passage (112) being in communication with the first receiving chamber (1401), the first high pressure flow passage (112) being located on the opposite side of the second receiving chamber (1402); The throttle valve comprises a first throttle valve (22) and a second throttle valve (23), the first accommodating cavity (1401) comprises a first cavity (142) and a second cavity (143), at least part of the first throttle valve (22) is located in the first cavity (142), at least part of the second throttle valve (23) is located in the second cavity (143), the first high-pressure runner (112) comprises a first sub runner (1121) and a second sub runner (1123), the first sub runner (1121) is communicated with the first cavity (142), part of the second sub runner (1123) is communicated with the second cavity (143), and part of the second sub runner (1123) is arranged at intervals with the first sub runner (1121) along the axis direction of the first cavity (142).
  3. 3. The fluid control assembly of claim 1 or 2, wherein the valve seat (10) comprises an insulated slot (17), the first high pressure flow passage (112) being located on one side of the insulated slot (17) and the first low pressure flow passage (113) being located on the opposite side of the insulated slot (17).
  4. 4. The fluid control assembly of any of claims 1-2, wherein the second sub-flow channel (1123) comprises a first section (11231) and a second section (11232), one end of the first section (11231) is in communication with one end of the second section (11232), the second section (11232) is in communication with the second chamber (143), at least a portion of the first section (11231) is spaced from the first sub-flow channel (1121) along the axial direction of the first chamber (142), and at least a portion of the axis of the first section (11231) is staggered from the axis of the first sub-flow channel (1121).
  5. 5. The fluid control assembly of claim 4 wherein the flow passage (11) comprises a second high pressure flow passage (111), the temperature of the refrigerant in the second high pressure flow passage (111) being greater than the temperature of the refrigerant in the first section (11231) when the fluid control assembly is in operation, the valve seat (10) comprising an insulated slot (17), the second high pressure flow passage (111) being located on one side of the insulated slot (17) and the first section (11231) being located on an opposite side of the insulated slot (17).
  6. 6. The fluid control assembly of claim 5, wherein the valve member (20) comprises a first valve member (24), the first low pressure flow passage (113) comprises a third sub-flow passage (1132) and a fourth sub-flow passage (1131), and the corresponding receiving cavity (14) of the first valve member (24) communicates with the fourth sub-flow passage (1131) and the third sub-flow passage (1132), respectively.
  7. 7. The fluid control assembly of claim 6, wherein the switching valve comprises a first switching valve (25), the second receiving chamber (1402) comprises a third chamber (145), at least a portion of the first switching valve (25) is located in the third chamber (145), and the second high pressure flow path (111) comprises a fifth sub-flow path (1114), a sixth sub-flow path (1112), and a seventh sub-flow path (1111); The first switching valve (25) is a three-way valve, the third cavity (145) is respectively communicated with the fifth sub-runner (1114), the sixth sub-runner (1112) and the seventh sub-runner (1111), the first switching valve (25) can disconnect or communicate with the fifth sub-runner (1114) and the seventh sub-runner (1111), and the first switching valve (25) can disconnect or communicate with the seventh sub-runner (1111) and the sixth sub-runner (1112); Or the first switching valve (25) is a two-way valve, the valve component (20) further comprises a second valve component (21), the third cavity (145) is respectively communicated with the fifth sub-runner (1114) and the seventh sub-runner (1111), and the accommodating cavity (14) corresponding to the second valve component (21) is respectively communicated with the seventh sub-runner (1111) and the sixth sub-runner (1112).
  8. 8. The fluid control assembly of claim 7, wherein the throttle valve comprises a third throttle valve (26), the first receiving cavity (1401) comprises 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 in communication with the first sub-flow passage (1121), the valve member (20) comprises a third valve member (27), and the receiving cavity (14) corresponding to the third valve member (27) is in communication with the sixth sub-flow passage (1112) and the first low pressure flow passage (113).
  9. 9. The fluid control assembly of claim 8, wherein the valve member (20) includes a first check valve (33), the fifth sub-flow passage (1114) includes a valve back flow passage (11141) and a valve front flow passage (11142), the first check valve (33) is mounted between the valve back flow passage (11141) and the valve front flow passage (11142), the first check valve (33) is capable of unidirectional communication of the valve front flow passage (11142) to the valve back flow passage (11141), and the fourth chamber (146) is in communication with the valve front flow passage (11142).
  10. 10. The fluid control assembly of claim 7, wherein the throttle valve comprises a fourth throttle valve (28), the first receiving cavity (1401) comprises a fifth cavity (148), at least a portion of the fourth throttle valve (28) is located in the fifth cavity (148), the fifth cavity (148) is in communication with the first sub-flow passage (1121), the second sub-flow passage (1123) comprises a third section (1126), the fifth cavity (148) is in communication with the third section (1126), the other end of the first section (11231) is in communication with the third section (1126), at least a portion of the third section (1126) is spaced apart from the first sub-flow passage (1121) along the axial direction of the first cavity (142), the switching valve comprises a second switching valve (29), the second receiving cavity (1402) comprises a sixth cavity (149), at least a portion of the second switching valve (29) is located in the sixth cavity (149) and the sixth section (149) is in communication with the second section (11232).
  11. 11. The fluid control assembly of claim 8, wherein the throttle valve comprises a fourth throttle valve (28), the first receiving cavity (1401) comprises a fifth cavity (148), at least a portion of the fourth throttle valve (28) is located in the fifth cavity (148), the fifth cavity (148) is in communication with the first sub-flow passage (1121), the second sub-flow passage (1123) comprises a third section (1126), the fifth cavity (148) is in communication with the third section (1126), the other end of the first section (11231) is in communication with the third section (1126), at least a portion of the third section (1126) is spaced apart from the first sub-flow passage (1121) along the axial direction of the first cavity (142), the switching valve comprises a second switching valve (29), the second receiving cavity (1402) comprises a sixth cavity (149), at least a portion of the second switching valve (29) is located in the sixth cavity (149) and the sixth section (149) is in communication with the second section (11232).
  12. 12. The fluid control assembly of claim 10 or 11, wherein the valve member (20) comprises a fourth valve member (31), the corresponding receiving cavity (14) of the fourth valve member (31) being in communication with the third sub-flow channel (1132).
  13. 13. The fluid control assembly of claim 1 or 2, wherein the flow passage (11) comprises a first sub-flow passage (1121), a second sub-flow passage (1123), a third sub-flow passage (1132), a fourth sub-flow passage (1131), a fifth sub-flow passage (1114), a sixth sub-flow passage (1112), a seventh sub-flow passage (1111), an eighth sub-flow passage (1122), and a ninth sub-flow passage (1124), the valve seat (10) having an interface (12), the interface (12) comprising 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-runner (1121) is communicated with the third interface (123), the second sub-runner (1123) is communicated with the eleventh interface (131), the fifth sub-runner (1114) is respectively communicated with the ninth interface (129) and the tenth interface (130), the fourth sub-runner (1131) is respectively communicated with the fifth interface (125), the sixth interface (126) and the twelfth interface (132), the third sub-runner (1132) is communicated with the eighth interface (128), the eighth sub-runner (1122) is communicated with the fourth interface (124), the seventh sub-runner (1111) is communicated with the first interface (121), the sixth sub-runner (1112) is communicated with the second interface (122), and the ninth sub-runner (1124) is communicated with the seventh interface (127).
  14. 14. A thermal management system comprising a compressor (1), a first heat exchanger (2) and a fluid control assembly according to any of claims 1-12, the first heat exchanger (2) being capable of functioning as a condenser, the first high pressure flow passage (112) being capable of communicating with a refrigerant passage of the first heat exchanger (2), the first low pressure flow passage (113) being capable of communicating with an inlet of the compressor (1).
  15. 15. The thermal management system according to claim 14, characterized in that the thermal management system comprises a reservoir (7) and an intermediate heat exchanger (6), the cavity of the reservoir (7) being in communication with a high temperature refrigerant channel of the intermediate heat exchanger (6), the first high pressure flow channel (112) being in communication with a high temperature refrigerant channel of the intermediate heat exchanger (6), the first low pressure flow channel (113) being in communication with a low temperature refrigerant channel of the intermediate heat exchanger (6), the low temperature refrigerant channel of the intermediate heat exchanger (6) being in communication with an inlet of the compressor (1).
  16. 16. The thermal management system according to claim 14 or 15, further comprising a second heat exchanger (3), a third heat exchanger (4), a fourth heat exchanger (5), the valve seat (10) having an interface (12), the interface (12) comprising 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) being in communication with the third interface (123), the first low pressure flow channel (113) being in communication with the sixth interface (126), the first interface (121) being in communication with an outlet of the compressor (1), a refrigerant passage of the first heat exchanger (2) being in communication with the second interface (122), a refrigerant passage of the second heat exchanger (3) being in communication with the fourth interface (124) and the fifth interface (125), the refrigerant passage of the second heat exchanger (3) being in communication with the seventh interface (128) and the eighth interface (128), respectively, the refrigerant channels of the fourth heat exchanger (5) are respectively communicated with the eleventh interface (131) and the twelfth interface (132); The other end of the refrigerant channel of the first heat exchanger (2) is communicated with the third interface (123), and the sixth interface (126) is communicated with the inlet of the compressor (1); Or, the thermal management system further comprises a liquid storage device (7) and an intermediate heat exchanger (6), the interface (12) further comprises a ninth interface (129) and a tenth interface (130), the intermediate heat exchanger (6) comprises 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 communicated with the tenth interface (130), the cavity of the liquid storage device (7) is respectively communicated with the high-temperature refrigerant channel of the ninth interface (129) and the intermediate heat exchanger (6), the other end of the high-temperature refrigerant channel of the intermediate heat exchanger (6) is communicated with the third interface (123), one end of the low-temperature refrigerant channel is communicated with the sixth interface (126), and the other end of the low-temperature refrigerant channel is communicated with the inlet of the compressor (1).

Description

Fluid control assembly and thermal management system Technical Field The application relates to the technical field of fluid control, in particular to a fluid control assembly and a thermal management system. Background In a thermal management system, a plurality of valves are required to realize different working modes of the system, and taking a vehicle thermal management system as an example, the thermal management system comprises a plurality of refrigerant valves and throttle valves, the refrigerant valves and the throttle valves are jointly arranged on the same valve seat to control whether a flow passage in the valve seat is communicated or not, the throttle valve can throttle and reduce pressure of high-pressure refrigerant flowing in a high-pressure flow passage, low-pressure refrigerant after throttling and reducing pressure flows through an evaporator and then flows back to a low-pressure flow passage of the valve seat, and harmful heat transfer between the high-pressure flow passage and the low-pressure flow passage can be caused, so that the operation efficiency of the thermal management system is affected. Disclosure of Invention The object of the present application is to provide a fluid control assembly that helps to reduce heat transfer between the high pressure flow path and the low pressure flow path of the fluid control assembly. In order to achieve the above object, one embodiment of the present application adopts the following technical scheme: A fluid control assembly comprising a valve seat and a valve member, the valve seat having a flow passage, the valve seat having a receiving cavity, at least a portion of the valve member being located in the receiving cavity, the receiving cavity being in communication with at least a portion of the flow passage, the valve member comprising a throttle valve and a switching valve defining a receiving cavity in which the throttle valve is received as a first receiving cavity, the switching valve defining a receiving cavity in which the switching valve is received as a second receiving cavity, the flow passage comprising a first high pressure flow passage and a first low pressure flow passage, the first high pressure flow passage and the first low pressure flow passage being relatively non-communicating, the first high pressure flow passage being in communication with the first receiving cavity, the first high pressure flow passage being in one side of the second receiving cavity, the first low pressure flow passage being in the opposite side of the second receiving cavity. According to the fluid control assembly provided by the embodiment of the application, the valve seat of the fluid control assembly is provided with the first high-pressure flow passage and the first low-pressure flow passage, the first high-pressure flow passage is positioned at one side of the second accommodating cavity corresponding to the switching valve, the first low-pressure flow passage is positioned at the other opposite side of the second accommodating cavity corresponding to the switching valve, and the first high-pressure flow passage and the first low-pressure flow passage are arranged at two sides of the second accommodating cavity, so that heat transfer between the first high-pressure flow passage and the first low-pressure flow passage is reduced. A fluid control assembly comprising a valve seat and a valve member, the valve seat having a flow passage, the valve seat having a receiving cavity, at least a portion of the valve member being located in the receiving cavity, the receiving cavity being in communication with at least a portion of the flow passage, the valve member comprising a throttle and a switching valve, the receiving cavity comprising a first receiving cavity and a second receiving cavity, at least a portion of the throttle being located in the first receiving cavity, at least a portion of the switching valve being located in the second receiving cavity, the flow passage comprising a first high pressure flow passage and a first low pressure flow passage, the first high pressure flow passage and the first low pressure flow passage being relatively non-communicating, the first high pressure flow passage being in communication with the first receiving cavity, the first high pressure flow passage being located in one side of the second receiving cavity, the first low pressure flow passage being located in the opposite side of the second receiving cavity. According to the fluid control assembly provided by the embodiment of the application, the valve seat of the fluid control assembly is provided with the first high-pressure flow passage and the first low-pressure flow passage, the first high-pressure flow passage is positioned at one side of the second accommodating cavity corresponding to the switching valve, the first low-pressure flow passage is positioned at the other opposite side of the second accommodating cavity corresponding to the switching