CN115264127A

CN115264127A - Fluid management device and thermal management system

Info

Publication number: CN115264127A
Application number: CN202110473043.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-11-01

Abstract

According to the fluid management device and the thermal management system, the valve part and the liquid storage part are assembled into a whole through the connecting body, the fluid management device is connected with the thermal management system as a whole and is convenient to assemble with the thermal management system, the first flow channel and the second flow channel are arranged on the connecting body, when the fluid management device works, the opening and closing of the switch valve can be used for controlling the opening and closing of the first flow channel, the flow of the second flow channel can be adjusted through the throttle valve, and the installation steps of the fluid management device can be reduced due to the fact that the first flow channel and the second flow channel are formed in the connecting body.

Description

Fluid management device and thermal management system

Technical Field

The invention relates to the technical field of fluid management, in particular to a fluid management device.

Background

The thermal management system comprises a plurality of functional components, and the components are usually connected through a plurality of pipelines, so that the number of the components is increased along with the increase of the complexity of the system, the number of connection points is increased, the leakage risk of the thermal management system at the connection points is increased, and the assembly is inconvenient.

Disclosure of Invention

It is an object of the present application to provide a fluid management device to facilitate solving the above-mentioned problems.

One embodiment of the present application provides a fluid management device, including a valve portion, a connecting body and a liquid storage portion, wherein the connecting body is fixedly connected or in limited connection with the liquid storage portion, the connecting body includes a receiving portion, the receiving portion has a receiving cavity, at least part of the valve portion is located in the receiving cavity, and the valve portion includes a switch valve and a throttle valve; the fluid management device having a reservoir at least a portion of which is located in the reservoir; the fluid management device is provided with a first flow passage and a second flow passage, the first flow passage is positioned in the connecting body, at least part of the second flow passage is positioned in the connecting body, the first flow passage and the second flow passage are not communicated relatively, the first flow passage is provided with a port on the wall of the accommodating part, the first flow passage comprises a first port, a second port, a third port and a fourth port, the second flow passage comprises a fifth port, a sixth port and a seventh port, one of the switch valves can enable the first port to be communicated with at least one of the second port and the third port, and the other switch valve can enable the third port to be communicated with the fourth port; at least one of the fifth port and the sixth port is capable of communicating with the seventh port via the reservoir chamber, and the reservoir chamber is capable of communicating with the sixth port via the throttle valve.

Another embodiment of the present application provides a thermal management system, including a compressor, a first heat exchanger, a second heat exchanger, a throttling unit, and a third heat exchanger, the thermal management system further includes a fluid management device, the fluid management device is the above-mentioned fluid management device, an outlet of the compressor is communicated with the first port, the second port is communicated with the fifth port through the first heat exchanger, the third port is communicated with the sixth port through the second heat exchanger, the seventh port is communicated with an inlet of the third heat exchanger through the throttling unit, an outlet of the third heat exchanger is communicated with an inlet of the compressor, and the fourth port is communicated with an inlet of the compressor.

Drawings

FIG. 1 is a perspective view of a first embodiment of a fluid management device;

FIG. 2 is a schematic perspective view of an alternate view of the fluid management device of FIG. 1;

FIG. 3 is an exploded view of one perspective of the fluid management device of FIG. 1;

FIG. 4 is a perspective view of the connector of FIG. 1;

FIG. 5 is a schematic perspective view of the connector of FIG. 1;

FIG. 6 is a schematic top view of the fluid management device of FIG. 1;

FIG. 7 isbase:Sub>A schematic cross-sectional view taken along A-A of FIG. 6;

FIG. 8 is an exploded view of the first connector of FIG. 1;

FIG. 9 is a schematic perspective view of an alternative perspective of the connector of FIG. 4;

FIG. 10 is a perspective view of a first embodiment of a fluid management device from one perspective;

FIG. 11 is a schematic perspective view of the fluid management device of FIG. 10 from another perspective;

FIG. 12 is an exploded view of the fluid management device of FIG. 10 from one perspective;

FIG. 13 is a perspective view of the connector of FIG. 10;

FIG. 14 is a schematic perspective view of the connector of FIG. 10;

FIG. 15 is a schematic cross-sectional view of the connector of FIG. 1;

FIG. 16 is a schematic connection diagram of a thermal management system.

Detailed Description

The fluid management device according to the technical scheme of the invention can have various embodiments, at least one of which can be applied to a vehicle thermal management system, and at least one of which can be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system, etc., and will be described below with reference to the accompanying drawings by taking a fluid management device applied to a vehicle thermal management system as an example, the fluid is a refrigerant, including R134a or CO2 or other forms of refrigerants.

Please refer to fig. 1-14. One embodiment of the present application provides a fluid management device 10 comprising a valve portion 11, a connector 13, and a reservoir portion 12, wherein the connector 13 is fixedly or captively connected to the reservoir portion 12, wherein the fixed or captively connected connection comprises a welded, bonded, or threaded connection. The connecting body 13 comprises an accommodating portion 131, the accommodating portion 131 has an accommodating cavity 1310, at least a part of the valve portion 11 is located in the accommodating cavity 1310, the valve portion 11 comprises a switch valve 111 and a throttle valve 112, the fluid management device 10 has a reservoir 120, and at least a part of the reservoir 120 is located in the reservoir 12; the fluid management device 10 has a first flow channel 101 and a second flow channel 102, at least a portion of the first flow channel 101 is located in the connecting body 13, at least a portion of the second flow channel 102 is located in the connecting body 13, and the first flow channel 101 and the second flow channel 102 are relatively not communicated, where the relatively non-communication refers to non-communication in the fluid management device 10, and if the fluid management device is connected with other components to form a thermal management system, the first flow channel and the second flow channel may be communicated when the thermal management system is in operation. The first flow path 101 has ports in the wall of the receiving portion 131, the first flow path 101 includes a first port 1001, a second port 1002, a third port 1003 and a fourth port 1004, the second flow path 102 includes a fifth port 1005, a sixth port 1006 and a seventh port 1007, one of the switching valves 111 enables the first port 1001 to communicate with at least one of the second port 1002 and the third port 1003, and the other switching valve 111 enables the third port 1003 to communicate with the fourth port 1004; at least one of the fifth port 1005 and the sixth port 1006 can communicate with the seventh port 1007 via the reservoir chamber 120, and the reservoir chamber 120 can communicate with the sixth port 1006 via the throttle valve 112. The first port 1001, the second port 1002, the third port 1003, the fourth port 1004, the fifth port 1005, the sixth port 1006 and the seventh port 1007 are positioned on the connecting body 13 or on a pipe or a block fixedly connected or in limited connection with the connecting body 13. The connecting body 13 has a housing chamber 1310 for housing the valve portion 11, at least a part of the first flow path 101 and at least a part of the second flow path 102 are located in the connecting body 13, the first flow path 101 has ports in the wall of the first housing portion 1311, one of the opening/closing valves 111 enables the first port 1001 to communicate with at least one of the second port 1002 and the third port 1003, the other opening/closing valve 111 enables the third port 1003 to communicate with the fourth port 1004, at least one of the fifth port 1005 and the sixth port 1006 to communicate with the seventh port 1007 via the reservoir chamber 120, and the reservoir chamber 120 to communicate with the sixth port 1006 via the throttle valve 112, so that the fluid management device 10 assembles the valve portion 11 and the reservoir 12 into one body via the connecting body 13, the fluid management device 10 is connected to the thermal management system as a whole, the assembly with the thermal management system is facilitated, and the first flow path and the second flow path are provided in the connecting body 13, and the opening/closing of the first flow path and the second flow path are controlled by the opening/closing valve, and the flow rate of the fluid management device is reduced by the installation step of the connecting body 13.

Referring to fig. 1-9 and 15, in the present embodiment, the fluid management device 10 includes a valve portion 11, a connecting body 13 and a reservoir portion 12, the reservoir portion 12 includes a reservoir housing 121 and a reservoir cover 122, the reservoir housing 121 and the reservoir cover 122 are hermetically disposed, specifically, the reservoir housing 121 and the reservoir cover 122 are hermetically sealed by welding, the fluid management device 10 has a reservoir chamber 120, and the reservoir chamber 120 is located between the reservoir housing 121 and the reservoir cover 122. The valve portion 11 includes an on-off valve 111 and a throttle valve 112, the connecting body 13 includes an accommodating portion 131, in this embodiment, at least a portion of the on-off valve 111 is located in the accommodating portion 131, and the on-off valve 111 is fixedly connected or connected with the accommodating portion 131 in a limiting manner, where the fixed connection or the limited connection includes a threaded connection, a welding connection, a clamping connection, or the like, and specifically, the on-off valve 111 includes a first valve 1111, a second valve 1112, and a third valve 1113. The connection body 13 includes a first connection body 134 and a second connection body 135, the first connection body 134 and the second connection body 135 are separately provided, in the present embodiment, the first connection body 134 is a block structure, the second connection body 135 is a block structure, the accommodating portion 130 includes a first accommodating portion 1311, a second accommodating portion 1312, a third accommodating portion 1313, and a fourth accommodating portion 1315, wherein the first accommodating portion 1311, the second accommodating portion 1312, and the third accommodating portion 1313 are located in the first connection body 134, and an opening direction of the accommodating cavity of the first accommodating portion 1311, the accommodating cavity of the second accommodating portion 1312, and the accommodating cavity of the third accommodating portion 1313 at the first connection body 134 are the same. At least a portion of the first valve 1111 is located in the receiving cavity of the first receiving portion 1311, the first valve 1111 is fixedly coupled to the first connecting body 134 by bolts, at least a portion of the second valve 1112 is located in the receiving cavity of the second receiving portion 1312, the second valve 1112 is fixedly coupled to the first connecting body 134 by bolts, at least a portion of the third valve 1113 is located in the receiving cavity of the third receiving portion 1313, and the third valve 1113 is fixedly coupled to the first connecting body 134 by bolts. The fluid management device 10 has a first flow channel 101, the first flow channel 101 includes a first port 1001, a second port 1002, a third port 1003 and a fourth port 1004, the first port 1001, the second port 1002, the third port 1003 and the fourth port 1004 are located on an outer wall of the first connecting body 134, the first flow channel 101 is located on the first connecting body 134, specifically, the first flow channel 101 includes a first sub flow channel 1011, a second sub flow channel 1012, a third sub flow channel 1013 and a fourth sub flow channel 1014, the first sub flow channel 1011 is communicated with the first port 1001, the first sub flow channel 1011 has ports on a wall of the first containing part 1311 and a wall of the second containing part 1312, the first containing part 1311 is located on one side of the first sub flow channel 1011, the second containing part 1312 is located on the other side of the first sub flow channel 1011, the first containing part 1311 and the second containing part 1312 are located on the other side of the first containing part 1011, the second sub flow channel 1012 is communicated with the second port 1002, the second sub flow channel 1112, the first sub flow channel 1003 and the second sub flow channel 1003 and the fourth sub flow channel 1013 are communicated with the third sub flow channel 1013, the third sub flow channel 1013 and the fourth sub flow channel 1013, the fourth sub flow channel 1013 are communicated with the third sub flow channel 1013, the fourth sub flow channel 1013 and the fourth sub flow channel 1013 are communicated with the third sub flow channel 1013, the fourth sub flow channel 1013 and the fourth sub flow channel 1013, the 1013 and the 1013, the fourth sub flow channel 1013 and the fourth sub flow channel 1013. In the present embodiment, the on-off valve 111 is an electromagnetic valve, and in other embodiments, the on-off valve 111 may be a ball valve, a needle valve, or another type of on-off valve 111. The fluid management device 10 includes a bracket 14, and the bracket 14 includes a hoop portion 141 and a bearing portion 142, wherein the hoop portion 141 is connected to the reservoir housing 121 in a limited manner, the bearing portion 142 is connected to the first connecting body 134 in a fixed manner or in a limited manner, and in this embodiment, the first connecting body 134 is fixed to the bearing portion 142 by bolts.

Referring to fig. 3, 4 and 7, the second connecting unit 135 includes a fourth receiving portion 1315, the fourth receiving portion 1315 has an opening on an outer wall of the second connecting unit 135, at least a portion of the throttle valve 112 is located in a receiving cavity of the fourth receiving portion 1315, the throttle valve 112 is fixedly connected or limitedly connected to the second connecting unit 135, in this embodiment, the throttle valve 112 is connected to the second connecting unit 135 by a bolt, the second connecting unit 135 is hermetically connected to the reservoir cover 122, and the second connecting unit 135 is connected to the reservoir cover 122 by a bolt. The fluid management device 10 has a second flow channel 102, a portion of the second flow channel 102 is located in the second connecting body 135, another portion of the second flow channel 102 is located in the cover 122, the fifth opening 1005, the sixth opening 1006 and the seventh opening 1007 of the fluid management device 10 are located on the outer wall of the second connecting body 135, the second flow channel 102 includes a fifth sub-flow channel 1021, a sixth sub-flow channel 1022 and a seventh sub-flow channel 1023, wherein the fifth sub-flow channel 1021 is communicated with the fifth opening 1005, the sixth sub-flow channel 1022 is communicated with the sixth opening 1006, and the seventh sub-flow channel 1023 is communicated with the seventh opening 1007.

Referring to fig. 7, the fluid management device 10 further includes a first check valve 14 and a second check valve 15, the first check valve 14 and the second check valve 15 are located in the second flow channel 102, specifically, the first check valve 14 is located in the fifth sub-flow channel 1021, in this embodiment, the first check valve 14 is located in the reservoir cover 122, specifically, the reservoir cover 122 includes a first hole portion 1221, the first check valve 14 is assembled with the first hole portion 1221, the bore of the first hole portion 1221 is a part of the fifth sub-flow channel 1021, the fifth port 1005 can be in one-way communication with the reservoir 120 through the first check valve 14, or fluid can enter the reservoir 120 through the fifth port via the first check valve 14, and fluid in the reservoir 120 cannot flow to the fifth port 1005 through the first check valve 14. The second check valve 15 is located in the sixth sub-flow passage 1022, and in this embodiment, the second check valve 15 is located in the reservoir cover 122, and the reservoir cover 122 includes a second hole portion 1222, and the second check valve 15 is assembled with the second hole portion 1222, and the bore of the second hole portion 1222 is a part of the sixth sub-flow passage 1022. The sixth port 1006 can be in one-way communication with the reservoir 120 through the second one-way valve 15, or fluid can enter the reservoir 120 from the sixth port 1006 through the second one-way valve 15, while fluid in the reservoir 120 cannot flow to the sixth port 1006 through the second one-way valve 15. The seventh sub-flow channel 1023 has a port in the reservoir cover 122 communicating with the reservoir 120, the seventh sub-flow channel 1023 communicates with the reservoir 120, the seventh sub-flow channel 1023 has a port in the wall of the fourth receiving portion 1315, the throttle valve 112 is located between the seventh sub-flow channel 1023 and the sixth sub-flow channel 1022, and the seventh sub-flow channel 1023 can communicate with the sixth sub-flow channel 1022 through the throttle valve 112, so that the flow channel in the reservoir 120 can be throttled and then flow out of the fluid management device 10 through the sixth port 1006. In other embodiments, the first one-way valve 14 and the second one-way valve 15 can also be provided on the second connecting body 135, which will not be described in detail.

The first connecting body and the second connecting body can be formed by casting or machining, the first connecting body can be of an integral structure or can be formed by combining a plurality of components, as shown in fig. 8, and similarly, the second connecting body can be of an integral structure or can be formed by combining a plurality of components, and detailed description is omitted.

The fluid management device 10 includes a first operating state in which the on-off valve 111 communicates the first port 1001 with the second port 1002, and the on-off valve 111 communicates the third port 1003 with the fourth port 1004, and a second operating state in which the fluid management device 10 is in the first operating state; the fifth port 1005 communicates with the reservoir 120, and the throttle valve 112 communicates the reservoir 120 with the sixth port 1006; in a second operating state of the fluid management device 10, the on-off valve 111 allows the first port 1001 to communicate with the third port 1003, and the sixth port 1006 to communicate with the seventh port 1007 via the reservoir 120. Specifically, in the first operating state of the fluid management device 10, the second valve 1112 is opened, the second valve 1112 communicates the first port 1001 with the second port 1002, the first valve 1111 is closed, the fifth port 1005 communicates with the reservoir 120 via the first check valve 14, the throttle valve 112 communicates the reservoir 120 with the sixth port 1006, the third valve 1113 is opened, and the third valve 1113 communicates the third port 1003 with the fourth port 1004. In a second operating state of the fluid management device 10, the first valve 1111 is open, the first valve 1111 communicates the first port 1001 with the third port 1003, the second valve 1112 is closed, and the third valve 1113 is closed; the sixth port 1006 communicates with the seventh port 1007 through the second check valve 15 and the reservoir 120, and the throttle valve 112 is closed.

In another embodiment, referring to fig. 15, the connecting body 13 includes a cylindrical portion 132 and a main body 133, the main body 133 has the second channel 102, the cylindrical portion 132 extends downward from the main body 133, an inner periphery of the cylindrical portion 132 forms a first portion of the reservoir 120, the reservoir 12 has a reservoir housing 121, the reservoir housing 121 forms a second portion of the reservoir 120, and the reservoir housing 121 and the cylindrical portion 132 are hermetically disposed; the first check valve 14 is assembled with the body 133, the first check valve 14 is located in the fifth sub-channel 1021, the fifth sub-channel 1021 has an opening in the wall of the body 133 facing the reservoir 120, the second check valve 15 is assembled with the body 133, the second check valve 15 is located in the sixth sub-channel 1022, and the sixth sub-channel 1022 has an opening in the wall of the body 133 facing the reservoir 120. Specifically, the second connecting body 135 includes a cylindrical part 132 and a body part 133, the fourth housing part 1315 is located at the body part 133, and a housing chamber of the fourth housing part 1315 has a port at an outer wall of the body part 133; the fifth sub-channel 1021 has a fifth port 1005 in the outer wall of the body 133, the fifth sub-channel 1021 has a port in the wall of the body 133 facing the reservoir 120, and the first check valve 14 is located in the fifth sub-channel 1021; the sixth sub-channel 1022 has a sixth port 1006 in the outer wall of the body 133, the sixth sub-channel 1022 has a port in the wall of the body 133 facing the reservoir 120, and the second check valve 15 is located in the sixth sub-channel 1022. Referring also to FIG. 5, the seventh sub-flow channel 1023 has a seventh opening 1007 in the outer wall of the main body 133, the seventh sub-flow channel 1023 has an opening in the wall of the main body 133 facing the reservoir 120, and the sixth sub-flow channel 1022 has an opening in the wall of the fourth receiving portion 1315. The second flow path 102 is located at the second connection body 135, the second connection body 135 accommodates a part of the throttle valve 112, and the second connection body 135 is hermetically connected to the reservoir housing 121, which relatively reduces the number of mounting steps and reduces the possibility of leakage.

Referring to fig. 10-14, the connecting body 13 is a unitary structure, or the first connecting body 134 and the second connecting body 135 are unitary structures, in this embodiment, the connecting body 13 is a block structure. The connector 13 is hermetically connected to the reservoir cover 122, the connector 13 is fixedly connected to the reservoir cover 122 by bolts, and the first check valve 14 and the second check valve 15 are respectively located in the first hole portion 1221 and the second hole portion 1222 of the reservoir cover 122, which will not be described in detail. The first, second, third, and

fourth containers

1311, 1312, 1313, and 1315 are located in the connecting body 13, the first and second flow channels 101 and 102 are located in the connecting body 13, and the first, second, third, fourth, fifth, sixth, and

seventh ports

1001, 1002, 1003, 1004, 1005, 1006, and 1007 are located in an outer wall of the connecting body 13. In a more specific embodiment, it is defined that at least the connecting body 13 is located above the reservoir housing 121, the connecting body 13 includes a first side portion 1301, a second side portion 1302 and a third side portion 1303, the first side portion 1301 is located above the second side portion 1302 and the third side portion 1303, wherein the receiving cavities of the first receiving portion 1311, the second receiving portion 1312, the third receiving portion 1313 and the fourth receiving portion 1315 are opened at the connecting body 13 in the same direction, and the receiving cavities of the first receiving portion 1311, the second receiving portion 1312, the third receiving portion 1313 and the fourth receiving portion 1315 are opened at the first side portion 1301 of the connecting body 13. In this embodiment, the first sub-channel 1011 is a straight hole, the first port 1001 is located on the second side portion 1302, the second side portion 1302 is located on one side of the connecting body 13, the third side portion 1303 is located on the opposite side of the connecting body 13, and the third side portion 1303 and the second side portion 1302 are located on different sides of the connecting body 13 along the extending direction of the first sub-channel 1011; the first port 1001, second port 1002, fifth port 1005 and sixth port 1006 are located on the second side 1302, and the third port 1003, fourth port 1004 and seventh port 1007 are located on the third side 1303, thus facilitating connection of the fluid management device to other components in the system.

Of course, the connecting body 13 may also include a cylindrical portion 132 and a main body 133, the main body 133 has the first flow channel 101 and the second flow channel 102, the cylindrical portion 132 extends downward from the main body 133, the inner periphery of the cylindrical portion 132 forms a first part of the reservoir 120, the reservoir 12 has a reservoir housing 121, the reservoir housing 121 forms a second part of the reservoir 120, and the reservoir housing 121 and the cylindrical portion 132 are hermetically sealed; the first check valve 14 is assembled with the body 133, the first check valve 14 is located in the fifth sub-channel 1021, the fifth sub-channel 1021 has an opening in the wall of the body 133 facing the reservoir 120, the second check valve 15 is assembled with the body 133, the second check valve 15 is located in the sixth sub-channel 1022, and the sixth sub-channel 1022 has an opening in the wall of the body 133 facing the reservoir 120. First container 1311, second container 1312, third container 1313, and fourth container 1315 are located in main body 133, and the container cavities of the four containers have ports on first side 1301 of main body 133; the first flow channel 101 and the second flow channel 102 are all located on the main body 133, the first port 1001, the second port 1002, the third port 1003, the fourth port 1004, the fifth port 1005, the sixth port 1006 and the seventh port 1007 are all located on the outer wall of the main body 133, the flow channels are located on the connecting body 13, the connecting body 13 contains at least part of the throttle valve 112 and at least part of the switch valve 111, and the connecting body 13 is hermetically connected with the liquid storage shell 121, so that the installation steps are relatively reduced, and the probability of leakage is relatively reduced.

Referring to fig. 16, an embodiment of the present application further provides a thermal management system, which may be applied to a vehicle including a new energy vehicle. The thermal management system comprises a compressor 21, a fluid management device 10, a first heat exchanger 22, a second heat exchanger 23, a throttling unit 24 and a third heat exchanger 25, wherein the fluid management device 10 is the fluid management device 10, specifically, the first heat exchanger 22 and the third heat exchanger 25 are positioned in an air conditioning box of a vehicle and used for regulating the temperature in the vehicle room, the second heat exchanger 23 is positioned in a front end module of the vehicle and used for exchanging heat with air, the fluid management device 10 is provided with a first port 1001, a second port 1002, a third port 1003, a fourth port 1004, a fifth port 1005, a sixth port 1006 and a seventh port 1007, an outlet of the compressor 21 is communicated with the first port 1001, the second port 1002 is communicated with the fifth port 22, the third port 1003 is communicated with the second heat exchanger 23 and the sixth port 1006, the seventh port 1007 is communicated with an inlet of the third heat exchanger 25 through the throttling unit 24, an outlet of the third heat exchanger 25 is communicated with an inlet 1005 of the compressor 21, and the fourth port 1004 is communicated with an inlet of the compressor 21. The fluid management device 10 as a whole communicates with other components in the thermal management system, which reduces installation steps and the chance of leaks.

When the thermal management system operates, the thermal management system includes a first operating mode and a second operating mode, and may also include one of the first operating mode and the second operating mode. In the first operating mode, the fluid management device 10 is in the first operating state, specifically, the second valve 1112 is open, the second valve 1112 communicates the first port 1001 with the second port 1002, the first valve 1111 is closed, the fifth port 1005 communicates with the reservoir 120 via the first check valve 14, the throttle valve 112 communicates the reservoir 120 with the sixth port 1006, the third valve 1113 is open, and the third valve 1113 communicates the third port 1003 with the fourth port 1004. The high-temperature and high-pressure refrigerant enters the fluid management device 10 through the first port 1001, leaves the fluid management device 10 through the second port 1002 via the second valve 1112, releases heat in the first heat exchanger 21 to increase the indoor temperature of the vehicle, enters the liquid storage chamber 120 of the fluid management device 10 through the fifth port 1005, is throttled and depressurized by the throttle valve 112, enters the second heat exchanger 23 to evaporate and absorb heat, enters the fluid management device 10 through the third port 1003, enters the inlet of the compressor 21 through the fourth port 1004 via the third valve 1113, participates in the next cycle, the first operation mode of the thermal management system can also be called a heating mode of the thermal management system, and the heating mode throttling unit 24 is closed.

In a second operating mode, the fluid management device 10 is in a second operating state, specifically, the first valve 1111 is open, the first valve 1111 communicates the first port 1001 with the third port 1003, the second valve 1112 is closed, and the third valve 1113 is closed; the sixth port 1006 communicates with the seventh port 1007 through the second check valve 15 and the reservoir 120, and the throttle valve 112 is closed. The high-temperature and high-pressure refrigerant enters the fluid management device 10 through the first port 1001, exits the fluid management device 10 through the third port 1003 via the first valve 1111, releases heat in the second heat exchanger 23, enters the liquid storage chamber 120 of the fluid management device 10 through the sixth port 1006, exits the fluid management device 10 through the seventh port 1007, enters the third heat exchanger 25 after being throttled by the throttling unit 24 to be evaporated and absorbed for reducing the temperature in the vehicle room, enters the inlet of the compressor 21 to participate in the next cycle, and the second operation mode of the thermal management system can also be called as the cooling mode of the thermal management system.

It should be noted that: although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted for those skilled in the art, and all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.

Claims

1. A fluid management device comprising a valve portion, a connector fixedly or captively connected to the reservoir, the connector comprising a receiving portion having a receiving cavity in which at least part of the valve portion is located, and a reservoir portion, the valve portion comprising an on-off valve and a throttle valve; the fluid management device having a reservoir at least a portion of which is located in the reservoir; the fluid management device is provided with a first flow passage and a second flow passage, the first flow passage is positioned in the connecting body, at least part of the second flow passage is positioned in the connecting body, the first flow passage and the second flow passage are not communicated relatively, the first flow passage is provided with a port on the wall of the accommodating part, the first flow passage comprises a first port, a second port, a third port and a fourth port, the second flow passage comprises a fifth port, a sixth port and a seventh port, one of the switch valves can enable the first port to be communicated with at least one of the second port and the third port, and the other switch valve can enable the third port to be communicated with the fourth port; at least one of the fifth port and the sixth port is capable of communicating with the seventh port via the reservoir chamber, and the reservoir chamber is capable of communicating with the sixth port via the throttle valve.

2. The fluid management device of claim 1, comprising a first operating state in which one of the switch valves communicates the first port with the second port and a second operating state in which the other switch valve communicates the third port with the fourth port; the fifth port is communicated with the liquid storage cavity, and the throttle valve enables the liquid storage cavity to be communicated with the sixth port;

in the second operating state, the on-off valve communicates the first port with the third port, and the sixth port communicates with the seventh port via the reservoir chamber.

3. The fluid management device according to claim 1 or 2, wherein the switching valve comprises a first valve, a second valve and a third valve, the housing comprises a first housing part, a second housing part and a third housing part, at least a part of the first valve is located in the housing chamber of the first housing part, at least a part of the second valve is located in the housing chamber of the second housing part, and at least a part of the third valve is located in the housing chamber of the third housing part;

the first flow passage includes a first sub-flow passage, a second sub-flow passage, a third sub-flow passage and a fourth sub-flow passage, the first sub-flow passage is communicated with the first port, the first sub-flow passage has ports on the wall of the first accommodating part and the wall of the second accommodating part, the second sub-flow passage is communicated with the second port, the second valve enables the first sub-flow passage and the second sub-flow passage to be communicated and not communicated, the third sub-flow passage is communicated with the third port, the third sub-flow passage has ports on the wall of the third accommodating part, the first valve enables the first sub-flow passage and the third sub-flow passage to be communicated and not communicated, the fourth sub-flow passage is communicated with the fourth port, and the third valve enables the third sub-flow passage and the fourth sub-flow passage to be communicated and not communicated.

4. The fluid management device of claim 3 wherein the housing comprises a fourth housing, at least a portion of the throttle valve being located in a housing cavity of the fourth housing; the fluid management device comprises a first one-way valve and a second one-way valve, the first one-way valve and the second one-way valve being located within the second flow passage; the second flow channel includes a fifth sub-flow channel, a sixth sub-flow channel and a seventh sub-flow channel, the fifth sub-flow channel is communicated with the fifth port, the fifth sub-flow channel is communicated with the liquid storage cavity through the first check valve, the sixth sub-flow channel is communicated with the sixth port, the sixth sub-flow channel is communicated with the liquid storage cavity through the second check valve, the seventh sub-flow channel is communicated with the seventh port, the seventh sub-flow channel is communicated with the liquid storage cavity, the seventh sub-flow channel has a port on the wall of the fourth accommodating portion, and the seventh sub-flow channel is communicated with the sixth sub-flow channel through the throttle valve.

5. The fluid management device of claim 4, wherein the reservoir portion comprises a reservoir housing and a reservoir cover, the reservoir housing and the reservoir cover being sealingly connected, the reservoir chamber being located between the reservoir housing and the reservoir cover, the connector being sealingly connected to the reservoir cover;

the liquid storage cover body comprises a first hole part and a second hole part, the first one-way valve is assembled with the first hole part, and the hole cavity of the first hole part is communicated with the fifth sub-flow passage and the liquid storage cavity; the second one-way valve is assembled with the second hole part, and the hole cavity of the second hole part is communicated with the sixth sub-flow passage and the liquid storage cavity.

6. The fluid management device of claim 4, wherein the connector comprises a cylindrical portion and a body portion, the body portion having the flow channel, the cylindrical portion extending downward from the body portion, an inner periphery of the cylindrical portion forming a first portion of the reservoir, the reservoir having a reservoir housing forming a second portion of the reservoir, the reservoir housing being sealingly disposed with the cylindrical portion;

the first one-way valve is assembled with the main body part, the first one-way valve is positioned in the fifth sub-flow passage, and the fifth sub-flow passage is provided with an opening on the wall of the main body part facing the liquid storage cavity; the second check valve is assembled with the body portion, the second check valve is located in the sixth sub-channel, and the sixth sub-channel has an opening in a wall of the body portion facing the reservoir.

7. The fluid management device according to claim 5 or 6, wherein the connection body comprises a first connection body and a second connection body, the first flow channel is located at the first connection body, the second flow channel is located at the second connection body, the first receiving portion, the second receiving portion, and the third receiving portion are located at the first connection body, and the fourth receiving portion is located at the second connection body;

the second connector is fixedly connected or in limited connection with the liquid storage cover body, or the second connector comprises a cylindrical part and a main body part, the liquid storage shell is welded and sealed with the cylindrical part, the fluid management device comprises a support, the support comprises a hoop part, the hoop part is in limited connection with the liquid storage shell, the support comprises a bearing part, and the bearing part is fixedly connected or in limited connection with the first connector.

8. The fluid management device according to claim 5 or 6, wherein the connecting body comprises a first side portion, a second side portion and a third side portion, defining that the connecting body is located above the reservoir housing, wherein the first side portion is located above the second side portion and the third side portion, the second side portion is located on one side of the connecting body along the extending direction of the first sub-channel, the third side portion is located on the opposite side of the connecting body, and the first side portion and the second side portion are located on different sides of the connecting body;

the accommodating cavity of the first accommodating part, the accommodating cavity of the second accommodating part and the accommodating cavity of the third accommodating partContainerThe accommodating chamber and the accommodating chamber of the fourth accommodating part are respectively provided with an opening at the first side part; the first, second, fifth, and sixth ports are located on the second side, and the third, fourth, and seventh ports are located on the third side.

9. A thermal management system comprising a compressor, a first heat exchanger, a second heat exchanger, a throttling unit, and a third heat exchanger, the thermal management system further comprising a fluid management device according to any one of claims 1-8, the outlet of the compressor being in communication with the first port, the second port being in communication with the fifth port via the first heat exchanger, the third port being in communication with the sixth port via the second heat exchanger, the seventh port being in communication with the inlet of the third heat exchanger via the throttling unit, the outlet of the third heat exchanger being in communication with the inlet of the compressor, and the fourth port being in communication with the inlet of the compressor.

10. The thermal management system of claim 9, wherein the thermal management system comprises at least one of a first mode of operation and a second mode of operation,

in the first working mode, the fluid management device is in a first working state, and the throttling unit is closed; in the second working mode, the fluid management device is in a second working state, and the throttling unit is opened.