CN114658887A

CN114658887A - Fluid management device and thermal management system

Info

Publication number: CN114658887A
Application number: CN202110652384.5A
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: 2020-12-23
Filing date: 2021-06-11
Publication date: 2022-06-24
Also published as: CN114658886A

Abstract

The utility model provides a fluid management device and thermal management system includes the connecting piece, motorised valve and kettle, the connecting piece has the runner, this runner can hold the chamber intercommunication with the first of motorised valve, the chamber of kettle also can communicate with the runner, it is located the top of case portion to set up automatically controlled portion, at least partial connecting piece is located the below of kettle casing, can reduce the probability that the fluid of first holding the intracavity got into automatically controlled portion like this, be favorable to preventing that the fluid from damaging automatically controlled portion, and then be favorable to improving fluid management device's life-span.

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 and a thermal management system.

Background

The thermal management system includes a fluid management device, and fluid within the fluid management device may cause damage to some components of the fluid management device, thereby affecting the life of the fluid management device.

Disclosure of Invention

The present application is directed to a fluid management device and a thermal management system, which are advantageous for increasing the lifetime of the fluid management device.

In one aspect, an embodiment of the present technical solution provides a fluid management device, including a connecting part, a kettle, and an electric valve, where the kettle includes a kettle housing, the kettle has a kettle cavity, the connecting part includes a first interface part and a second interface part, the kettle housing includes a first mating part, the first mating part is in sealing connection with the first interface part, the connecting part has a flow passage, and the kettle cavity is communicated with the flow passage; the electric valve comprises a valve shell, a valve rod, an electric control part and a valve core part, wherein the electric control part is in transmission connection with the valve rod, the valve rod is fixedly connected or in limited connection with the valve core part, the valve shell is provided with a first accommodating cavity, at least part of the valve core part is positioned in the first accommodating cavity, the valve shell comprises a second matching part, the second matching part is in sealing connection with the second interface part, the valve shell is provided with a channel, the channel can be communicated with the first accommodating cavity, and the channel is communicated with the flow channel; the axial direction of the valve rod is defined to be the vertical direction, the electric control part is positioned above the valve core part, and at least part of the connecting piece is positioned below the kettle shell.

On the other hand, an embodiment of the technical solution of the present application further provides a thermal management system, where the thermal management system includes a heat sink, a second heat exchanger, a third heat exchanger, and a fluid management device, where the fluid management device is the above-mentioned fluid management device, the fluid management device includes a throttle valve, a first heat exchanger, a first pump, and/or a second pump, the throttle valve is fixedly connected or in limited connection with the first heat exchanger, the first heat exchanger has a first heat exchange channel and a second heat exchange channel, and the throttle valve can throttle a refrigerant entering the first heat exchange channel and depressurize the refrigerant; the first flow passage is communicated with the fourth flow passage through the second heat exchange channel, the fourth flow passage is communicated with the cavity of the first pump, and the fourth flow passage is communicated with the cavity of the second pump;

the third flow channel is communicated with the fourth flow channel through the radiator, the second flow channel is communicated with the second pump through the second heat exchanger, and the fifth flow channel is communicated with the first pump through the third heat exchanger.

The fluid management device and the thermal management system provided by the above embodiment of the application, the fluid management device comprises a connecting piece, an electric valve and a kettle, the connecting piece is provided with a flow channel, the flow channel can be communicated with a first accommodating cavity of the electric valve, a cavity of the kettle can also be communicated with the flow channel, the electric control part is arranged above the valve core part, and at least part of the connecting piece is arranged below the kettle shell.

Drawings

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

FIG. 2 is a schematic perspective view of the fluid management device of FIG. 1 from another perspective;

FIG. 3 is a schematic diagram of a first exploded version of the fluid management device of FIG. 1;

FIG. 4 is an exploded view of the alternative view of the fluid management device of FIG. 3;

FIG. 5 is a schematic diagram of a first exploded version of the fluid management device of FIG. 1;

FIG. 6 is a perspective view of the connector of FIG. 1;

FIG. 7 is a schematic front view of the connector and electrically operated valve of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken along A-A of FIG. 7;

FIG. 9 is a schematic cross-sectional view taken along B-B of FIG. 7;

figure 10 is an exploded schematic view of the electric valve and seal;

figure 11 is a schematic bottom view of an electrically operated valve;

FIG. 12 is a cross-sectional view along C-C of FIG. 11;

FIG. 13 is an exploded view of a second embodiment of a fluid management device;

FIG. 14 is a schematic connection diagram of a thermal management system;

FIG. 15 is a perspective view of a third embodiment of a fluid management device from one perspective;

FIG. 16 is a schematic perspective view of another perspective of the third embodiment of a fluid management device;

FIG. 17 is an exploded view of the fluid management device of FIG. 15;

FIG. 18 is a perspective view of the connector of FIG. 15;

FIG. 19 is a schematic perspective view of FIG. 18;

figure 20 is a schematic perspective view of the electrically operated valve of figure 15.

Detailed Description

The fluid management device can be applied to a vehicle thermal management system, vehicles comprise new energy vehicles, and the fluid at least comprises cooling liquid. The invention is further described with reference to the following figures and specific examples:

please refer to fig. 1-12 and fig. 15-20. The fluid management device 10 comprises a connector 100, a jug 200 and an electrically operated valve 300, wherein the jug 200 comprises a jug housing 210, the jug 200 comprises a cavity (not shown) which is positioned in the jug housing 210 and can contain cooling fluid, and the jug housing 210 can be an integral structure or formed by connecting more than two housings. Kettle casing 210 includes first cooperation portion 211, and connecting piece 100 includes first interface part 120 and second interface part 130, and connecting piece 100 still has the runner, and runner 110 is located connecting piece 100, and first cooperation portion 211 and first interface part 120 fixed connection or spacing connection are sealed in the junction, and then kettle chamber and runner intercommunication, and connected mode can weld, bonding, grafting, joint or threaded connection. In a specific embodiment, at least a portion of the first interface portion 120 is located in the cavity formed by the first mating portion 211, and the fluid management device may further include a sealing ring disposed between the first mating portion 211 and the first interface portion 120 to enhance the sealing performance; of course, the first mating portion 211 may be located in a cavity formed by the first interface portion 120, and will not be described in detail. The electric valve 300 includes a valve housing 350, a valve stem 330, an electric control portion 320 and a valve core portion 340, the electric control portion 320 is in transmission connection with the valve stem 330, the valve stem 330 is in fixed connection or limited connection with the valve core portion 340, the valve housing 350 has a first accommodating cavity 352, at least a part of the valve core portion 340 is located in the first accommodating cavity 352, the electric control portion 320 can drive the valve stem 330 to further enable the valve core portion 340 to operate in the first accommodating cavity 352, the operation of the valve core portion 340 in the first accommodating cavity 352 includes a rotation operation using the valve stem 330 as an axis and/or an axial operation along the valve stem 330, in this embodiment, the valve core portion 340 can rotate by a certain angle using the valve stem 330 as an axis. The valve housing 350 includes a second fitting portion 353, the second fitting portion 353 is connected to the second connecting portion 130 in a sealing manner, the valve housing 350 has a passage 355 capable of communicating with the first accommodating chamber 352, the passage 355 communicates with the flow passage 110, and the flow passage can communicate with the first accommodating chamber 352.

The axial direction of the valve rod 330 is defined as the up-down direction, the electric control part 320 is located above the valve core part 340, and at least part of the connecting piece 100 is located below the kettle shell 210. In this embodiment, when the fluid management device 10 works, the fluid in the fluid management device 10 is a cooling liquid, the fluid management device 10 is provided with the connecting member 100, the connecting member 100 has the flow channel 110, the flow channel 110 can communicate with the kettle cavity and the first accommodating cavity 352, the electric valve 300 is connected with the connecting member 100, the electric control portion 320 is located above the valve core portion 340, that is, the electric control portion 320 is located above the first accommodating cavity 352, so that the probability that the cooling liquid in the first accommodating cavity enters the electric control portion 320 can be reduced, which is beneficial to preventing the cooling liquid from damaging the live parts of the electric control portion, and further improving the service life of the electric control portion 320, and further beneficial to improving the service life of the fluid management device. At least some of the connecting members 100 are located below the kettle housing 210 to facilitate communication between the cooling fluid in the kettle chamber and the cooling fluid in the flow passage when the fluid management device 10 is in use.

Referring to fig. 3-5, the connecting member 100 includes a first side 170, the first side 170 faces a bottom 212 of the kettle housing, the first connecting portion 120 protrudes toward the bottom 212 of the kettle housing relative to the first side 170, and the first mating portion 211 is formed on the bottom 212 of the kettle housing, such that the connecting member 100 is located below the kettle housing 210 to facilitate the communication of the cooling fluid of the fluid management device 10. The second interface 130 opens towards the bottom 212 of the kettle housing, and the electrical control part 320 is closer to the bottom 212 of the kettle housing than the second interface 130 along the axial direction of the valve stem 330. At least part of the connector 100 is located below the jug housing 210 and the electric valve 300 is also located below the jug housing 210, so that the fluid management device 10 is relatively compact and has a center of mass relatively close to the geometric center of the fluid management device 10, which also contributes to the structural stability of the fluid management device 10. In other embodiments, the opening of the first interface portion 120 may be located at the first side portion 170, with the opening of the first interface portion 120 facing the bottom 212 of the jug housing.

The fluid management device 10 includes a first mounting portion 150 and a mating portion 150 ' of the first mounting portion, one of the first mounting portion 150 and the mating portion 150 ' of the first mounting portion is located in the jug housing 210, the other is located in the connector 100, and the first mounting portion 150 and the mating portion 150 ' of the first mounting portion are mated with each other, thereby realizing the fixed connection of the connector and the jug. In this embodiment, the first mounting portion 150 is located on the connecting member 100, the first mounting portion 150 is formed as a threaded hole, the mating portion 150 'of the first mounting portion is a through hole, the first mounting portion and the mating portion 150' of the first mounting portion are connected by a bolt, and the connecting member 100 is fixedly connected or connected in a limited manner with the kettle housing 210. The fluid management device 10 includes a second mounting portion 160 and a mating portion of the second mounting portion, one of the second mounting portion 160 and the mating portion 160' of the second mounting portion is located in the jug housing 210, and the other is located in the valve housing 350, and the two cooperate to secure the electric valve and the connector. The coupling manner of the second mounting portion 160 and the mating portion 160 'of the second mounting portion may be the same as or different from the coupling manner of the first mounting portion and the mating portion 150' of the first mounting portion, and will not be described in detail. In a more specific embodiment, the second mounting portion is closer to the first receiving cavity 352 than the first mounting portion along the radial direction of the first receiving cavity 352, and the electric valve is fixed closer to the center than the kettle, which helps stabilize the structural performance of the fluid management device 10.

Referring to fig. 5, 6 and 10-12, the valve housing 350 includes a main body portion 354, the main body portion 354 includes a first accommodating portion 351, the first accommodating portion 351 has a first accommodating cavity 352, the second connecting portion 130 includes a second accommodating portion 131, the second accommodating portion 131 has a second accommodating cavity 132, at least a portion of the main body portion 354 is located in the second accommodating cavity 132, in this embodiment, the second matching portion 353 is formed on an outer wall 3542 of the main body portion, a channel is formed on the main body portion 354, the channel 355 penetrates through the main body portion 354 along a radial direction of the first accommodating cavity 352, the channel 355 has channel openings on both the inner wall and the outer wall 3542 of the main body portion, and accordingly, the flow channel 110 has a channel opening on a wall 1311 of the second accommodating portion, and the channel opening is opposite to at least a portion of the channel opening, so that the flow channel 110 communicates with the corresponding channel 355. In other embodiments, the channel may also be formed in the bottom of the valve housing. The body portion 354 is at least partially located in the second receiving portion 131, which can reduce the volume of the fluid management device 10 and make the device compact. In the present embodiment, the body portion 354 is cylindrical, but in other embodiments, the outer shape of the body portion may be square or other shapes.

The fluid management device 10 includes a seal 400, the seal 400 is located in the second receiving chamber 132, the seal 400 is distributed around the passage opening, one side of the seal 400 is in contact with the wall 1311 of the second receiving portion, the other side of the seal 400 is in contact with the outer wall of the main body portion 354, and the seal 400 is in a compressed state to ensure a sealing effect. The seal 400 has a communication port 401, and the flow passage port communicates with the passage port through the communication port 401 of the seal. The seal 400 may be a gasket, and when the seal 400 is a gasket, the body portion and/or the connector 100 may be provided with a groove for receiving the gasket, or the seal 400 may be a gasket. The electric valve 300 has a plurality of passage openings, the number of the sealing members 400 matches with the number of the passage openings, and the sealing members 400 may be independent parts or may be an integral structure.

In the present embodiment, the seal 400 is an integral structure, the seal 400 is cylindrical so as to match the outer shape of the body portion 354, the side portion 410 of the seal abuts against the outer wall 3542 of the body portion and the wall of the second housing portion 131, the seal 400 has a housing cavity 402, at least a part of the body portion 354 is located in the housing cavity 402 of the seal, the communication port 401 is formed in the side portion 410 of the seal, and accordingly, the passage port is formed in the body portion 354 and the flow channel port is formed in the side wall of the second housing portion 131. The fluid management device 10 may also include a rib 500, where the rib 500 compresses the seal 400 to enhance the seal. Specifically, the rib 500 includes a first ring portion 510, a second ring portion 520, and at least two axial portions 530, along the axial direction of the valve rod 330, one end of the axial portion 530 is connected to the first ring portion 510, the other end of the axial portion 530 is connected to the second ring portion 520, the rib 500 is formed in the valve housing 350, the outer wall 3542 of the rib 500 opposite to the main body portion protrudes toward the second accommodating portion 131, and the passage opening is located between the adjacent axial portions 530, so that the passage opening is located in the region surrounded by the rib 500, and the fluid management device 10 is provided with the rib 500 to improve the sealing performance. In other embodiments, the rib 500 may be formed on the connecting member 100, the rib 500 protrudes toward the main body portion 354 relative to the wall of the second accommodating portion 131, and the flow passage opening is located between the adjacent axial portions 530, which will not be described in detail. In other embodiments, the fluid management device may not be provided with a sealing member separately, the rib is directly contacted with the inner wall of the second accommodating portion, the rib has a sealing function, the material of the rib may be different from that of other portions of the main body portion, and the rib and the other portions of the main body portion are integrally injection molded.

In this embodiment, referring to fig. 8, the electric valve 300 is a five-way valve, the number of the passages of the valve housing 350 is five, that is, the passages of the electric valve 300 include a first passage 3551, a second passage 3552, a third passage 3553, a fourth passage 3554 and a fifth passage 3555, the five passages all penetrate through the main body, accordingly, the number of the flow passages of the fluid management device 10 is five, that is, the flow passages include a first flow passage 111, a second flow passage 112, a third flow passage 113, a fourth flow passage 114 and a fifth flow passage 115, the five flow passages have flow passage openings on a side wall 1311 of the second accommodating portion, the first flow passage 111 is communicated with the first passage, the second flow passage 112 is communicated with the second passage, the third flow passage 113 is communicated with the third passage, the fourth flow passage 114 is communicated with the fourth passage, and the fifth flow passage 115 is communicated with the fifth passage. Of course, the electric valve 300 can be other number of through valves or proportional regulating valves, which will not be described in detail. The connecting member 100 may be integrally formed by injection molding, or the connecting member 100 may be formed by welding or bonding at least two plates.

When the fluid management device 10 is in operation, the fluid management device 10 has at least one of the following six modes of operation: in the first operation mode of the fluid management device 10, the valve body 340 communicates the second channel 3352 with the third channel 3553, the valve body 340 communicates the fifth channel 3555 with the third channel 3553, the valve body 340 communicates the second channel 112 with the third channel 113, and the valve body 340 communicates the fifth channel 115 with the third channel 113.

In the second operation mode of the fluid management device 10, the valve body 340 communicates the second channel 3552 with the third channel 3553, the valve body 340 communicates the fifth channel 3555 with the first channel 3551, the valve body 340 communicates the second channel 112 with the third channel 113, and the valve body 340 communicates the fifth channel 115 with the first channel 111.

In the third operation mode of the fluid management device 10, the valve body 340 causes the second channel 3552 to communicate with the first channel 3551, the valve body 340 causes the fifth channel 3555 to communicate with the fourth channel 3554, the valve body 340 causes the second channel 112 to communicate with the first channel 111, and the valve body 340 causes the fifth channel 115 to communicate with the fourth channel 114.

In the fourth operation mode of the fluid management device 10, the valve body 340 causes the second channel 3552 to communicate with the third channel 3553, the valve body 340 causes the fifth channel 3555 to communicate with the fourth channel 3554, the valve body 340 causes the second channel 112 to communicate with the third channel 113, and the valve body 340 causes the fifth channel 115 to communicate with the fourth channel 114.

In the fifth operation mode of the fluid management device 10, the valve body 340 causes the second channel 3552 to communicate with the fourth channel 3554, the valve body 340 causes the fifth channel 3555 to communicate with the fourth channel 3554, the valve body 340 causes the second channel 112 to communicate with the fourth channel 114, and the valve body 340 causes the fifth channel 115 to communicate with the fourth channel 114.

In the sixth operation mode of the fluid management device 10, the valve body 340 causes the fifth passage 3555 to communicate with the second passage 3552, or the valve body 340 causes the second passage 3552 to communicate with the first passage 3551, the valve body 340 causes the fifth passage 3555 to communicate with the first passage 3551, the valve body 340 causes the fifth passage 115 to communicate with the second passage 112, or the valve body 340 causes the second passage 112 to communicate with the first passage 111, and the valve body 340 causes the fifth passage 115 to communicate with the first passage 111.

Referring to fig. 1-6 and 15, the fluid management device 10 includes a throttle 610, a first heat exchanger 620, a first pump 710 and/or a second pump 720, the throttle 610 is fixedly connected or limitedly connected to the first heat exchanger 620, the first heat exchanger 620 has a first heat exchange path and a second heat exchange path, and the throttle 610 can throttle and depressurize the refrigerant entering the first heat exchange path. The fluid management device 10 comprises a first connecting part 141, a second connecting part 142, a third connecting part 143 and a fourth connecting part 144, wherein the connecting parts are formed on the connecting part 100 or on a pipe or a block fixedly connected or in limited connection with the connecting part 100; at least part of the first flow channel 111 is formed in the first connection portion 141, at least part of the fourth flow channel 114 is located in the second connection portion 142, the first connection portion 141 and the second connection portion 142 are fixedly connected or in limited connection with the first heat exchanger 620, so that the first flow channel 111 is communicated with the second heat exchange channel, the fourth flow channel 114 is communicated with the second heat exchange channel, or the first flow channel 111 can be communicated with the fourth flow channel 114 through the second heat exchange channel. The first heat exchanger 620 and the connector 100 may be fixed by bolts or may be fixed by bonding. At least part of the fourth flow channel 114 is formed in the third connecting portion 143, the first pump 710 is fixedly connected or in limited connection with the third connecting portion 143, and then the fourth flow channel 114 is communicated with the cavity of the first pump 710, at least part of the fourth flow channel 114 is located in the fourth connecting portion 144, the second pump 720 is fixedly connected or in limited connection with the fourth connecting portion 144, and then the fourth flow channel 114 is communicated with the cavity of the second pump 720. The first pump 710 and/or the second pump 720 can provide power for the flow of cooling fluid within the thermal management system.

Referring to the second embodiment illustrated in fig. 13, the valve housing 350 includes a main body portion 354 and five pipe portions 356, in this embodiment, the number of the pipe portions is five, the corresponding connecting member 100 includes five second connecting port portions 130, the first accommodating chamber 352 is located in the main body portion 354, the connecting member 100 is located on one side of the main body portion 354 along the axial direction of the valve stem 330, the pot housing 210 is located on the opposite side of the main body portion 354, at least a part of the pipe portion 356 protrudes relative to the side wall of the main body portion 354 along the radial direction of the first accommodating chamber 352, a passage is formed in the pipe portion 356 and the main body portion 354, the passage has a port on the inner wall of the main body portion, and in this embodiment, the second fitting portion 353 is formed in the pipe portion 356.

Referring to fig. 14, the present application further provides a thermal management system, where the thermal management system includes a heat sink 810, a second heat exchanger 820, a third heat exchanger 830, and a fluid management device 10, the second heat exchanger 820 can regulate a temperature of a battery, the third heat exchanger 830 can regulate a temperature of a heat generating device such as a motor, the fluid management device 10 includes a throttle valve 610, a first heat exchanger 620, a first pump 710, and/or a second pump 720, the throttle valve 610 is fixedly connected or limited to the first heat exchanger 620, the first heat exchanger 620 has a first heat exchange channel and a second heat exchange channel, and the throttle valve 610 can throttle a refrigerant entering the first heat exchange channel; the first flow passage 111 is communicated with the fourth flow passage 114 through the second heat exchange channel, the fourth flow passage 114 is communicated with the cavity of the first pump 710, and the fourth flow passage 114 is communicated with the cavity of the second pump 720;

the third flow passage 113 communicates with the fourth flow passage 114 through the radiator 810, the second flow passage 112 communicates with the second pump 720 through the second heat exchanger 820, and the fifth flow passage 115 communicates with the first pump 710 through the third heat exchanger 830. The thermal management system is provided with the fluid management device 10, so that the pipeline connection of the system can be reduced, and the thermal management system can be simplified.

Referring to fig. 15-20, the connecting member 100 includes at least two second connecting ports 130, the second connecting ports 130 are located at a side close to the kettle 200, in this embodiment, the connecting member 100 includes four second connecting ports 130, along an axial direction of the valve rod, a flow channel is formed at a side of a wall of the second connecting ports 130, where a flow channel opening faces a side where the electric control part 320 is located, specifically, the flow channel includes a first flow channel 111, a second flow channel 112, a fourth flow channel 114, and a fifth flow channel 115, where the first flow channel 111, the second flow channel 112, the fourth flow channel 114, and the fifth flow channel 115 respectively have a flow channel opening facing the side where the electric control part 320 is located at a wall of the second connecting ports 130. The second mating portion 353 is located at the bottom of the valve housing 350 for mating with the second interface portion 130. The valve housing 350 includes a main body portion 354, and the connector 100 is located on one side of the main body portion 354 and at least a portion of the kettle housing 210 is located on the opposite side of the main body portion 354 along the axial direction of the valve stem. The channel is formed in the main body portion 354, the channel has channel openings in both the inner wall of the main body portion 354 and the outer wall of the main body portion 354, the channel opening in the outer wall of the main body portion 354 faces the side where the electric control portion 320 is located, and the channel opening is opposite to at least part of the channel openings, specifically, the channel includes a first channel 3551, a second channel 3552, a third channel 3553, a fourth channel 3554 and a fifth channel 3555, wherein the first channel 3551, the second channel 3552, the fourth channel 3554 and the fifth channel 3555 have channel openings in the bottom wall of the main body portion 354, or the first channel 3551, the second channel 3552, the fourth channel 3554 and the fifth channel 3555 have channel openings in the second matching portion 353 facing the connecting member 100. The valve housing 350 further includes a tube portion 356, the tube portion 356 is integral with the main body portion 354, the tube portion 356 of the valve housing 350 is closer to the electric control portion 320 than the second fitting portion 353 in the axial direction of the valve stem, a part of the third passage 3553 is located in the main body portion 354, another part of the third passage 3553 is located in the tube portion 356, and the third passage 3553 has a passage port in the tube portion 356 of the valve housing 350. The first flow passage 111 communicates with the first passage 3551, the second flow passage 112 communicates with the second passage 3552, the fourth flow passage 114 communicates with the fourth passage 3554, and the fifth flow passage 115 communicates with the fifth passage 3555. In the present embodiment, a gasket is further provided between the second interface portion 130 and the second mating portion 353 to enhance sealing.

The jug housing 210 has at least one communication channel 2101 communicating with the jug cavity, the communication channel 2101 having an opening in the outer wall of the jug housing 210 for communication with other components within the system, in this embodiment, the communication channel 2101 is further from the connection 100 than the first interface portion.

The fluid management device comprises a throttling valve 610, a first heat exchanger 620, a first pump 710 and/or a second pump 720, the throttling valve 610 is fixedly connected or in limited connection with the first heat exchanger 620, the first heat exchanger 620 is provided with a first heat exchange channel and a second heat exchange channel, and the throttling valve 610 can throttle and depressurize refrigerant entering the first heat exchange channel. The connection member 100 includes a connection portion for connecting with the first heat exchanger 620, the first pump 710 and/or the second pump 720, specifically, the connection member 100 includes a first connection portion 141, a second connection portion 142, a third connection portion 143, a fourth connection portion 144 and a fifth connection portion 145, where the first connection portion 141 is fixedly connected or connected in a limited manner with the first heat exchanger 620, the second connection portion 142 includes a third installation portion 180 and a first connection pipe 1422, at least a portion of the first pump 710 is located in an installation cavity of the third installation portion 180, the first pump 710 is fixedly connected or connected in a limited manner with the third installation portion 180, the third connection portion 143 includes a fourth installation portion 1433 and a second connection pipe 1434, at least a portion of the second pump 720 is located in an installation cavity of the fourth installation portion 1433, and the second pump 720 is fixedly connected or connected in a limited manner with the fourth installation portion 1433. The connection mode includes bolt connection, bonding and the like. The fourth flow channel 114 includes a first sub-section 1141, a second sub-section 1142 and a third sub-section 1143, wherein the first sub-section 1141 has a flow channel opening on the wall of the second interface portion 130, and the third sub-section 1143 is respectively communicated with the first sub-section 1141 and the second sub-section 1142. The first flow passage 111 and the second sub-section 1142 have a flow passage opening at the first connecting portion 141, and the second heat exchange passage communicates with the first flow passage 111 and the second sub-section 1142, so that the cooling liquid in the connecting member 100 can flow into and out of the first heat exchanger 620. The first sub-section 1141 has a flow passage port at the third mounting portion 180, the first sub-section 1141 communicates with an inlet of the first pump 710, the second connecting portion 142 has a first connecting passage 1421, the first connecting passage 1421 has a connecting passage port at the third mounting portion 180 that communicates with an outlet of the first pump 710, the first connecting passage 1421 has a connecting passage port at the first connecting pipe 1422, and the first connecting pipe 1422 is used for connecting with other components in the system. The third sub-section 1143 has a flow passage opening at a fourth mounting portion 1433, the third sub-section 1143 communicates with an inlet of the second pump 720, the third connection portion 143 has a second connection passage 1431, the second connection passage 1431 has a connection passage opening at the fourth mounting portion 1433 which communicates with an outlet of the second pump 720, the second connection passage 1431 has a connection passage opening at a second connection pipe 1434, and the second connection pipe 1434 is used for connecting with other components in the system. The second flow channel 112 has a flow channel opening at the fourth connection portion 144, and the fifth flow channel 115 has a flow channel opening at the fifth connection portion 145, but in the present embodiment, the first connection portion 141 has a plate shape, so that it is convenient to fit the shape of the first heat exchanger 620, and the stability of the fluid management device can be improved. The third mounting portion of the second connecting portion 142 has a mounting cavity, the fourth mounting portion 1433 of the third connecting portion 143 has a mounting cavity, and the second connecting portion 142 and the third connecting portion 143 have shapes matched with the first pump 710 and the second pump 720, so that the mounting is convenient, and the stability of the fluid management device can be improved. The fifth and

fourth connection portions

145 and 144 have a tubular shape.

In a more specific embodiment, the second flow passage 112 has a flow passage opening at the fourth connection portion 144, the fifth flow passage 115 has a flow passage opening at the fifth connection portion 145, the first connection channel 1421 has a connection channel opening at the first connection pipe 1422, and the second connection channel 1431 has a connection channel opening at the second connection pipe 1434. This facilitates the connection of the fluid management device to other components within the system.

When the fluid management device is applied to a thermal management system, the third channel can be communicated with the communication channel of the kettle housing 210 through the heat sink, and further the third channel is communicated with the kettle cavity, since the kettle cavity is communicated with the fourth flow channel 114, in this way, the third channel can be communicated with the fourth flow channel 114 through the kettle cavity, and at this time, the kettle cavity becomes a flow channel of the fluid management device, or when the fluid management device works, the cooling liquid can flow in the kettle cavity, and the cooling liquid in the kettle cavity can enter the connecting piece 100 through the first connector part, or the cooling liquid in the connecting piece 100 can enter the kettle cavity through the first connector part. Compared to the above embodiment, the connector 100 has fewer third flow channels, the flow channels in the connector 100 are relatively simple, and the connector 100 is relatively easy to manufacture. 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 comprises a connecting piece, a kettle and an electric valve, wherein the kettle comprises a kettle shell, the kettle is provided with a kettle cavity, the connecting piece comprises a first connecting part and a second connecting part, the kettle shell comprises a first matching part, the first matching part is in sealing connection with the first connecting part, the connecting piece is provided with a flow passage, and the kettle cavity is communicated with the flow passage; the electric valve comprises a valve shell, a valve rod, an electric control part and a valve core part, wherein the electric control part is in transmission connection with the valve rod, the valve rod is fixedly connected or in limit connection with the valve core part, the valve shell is provided with a first accommodating cavity, at least part of the valve core part is positioned in the first accommodating cavity, the valve shell comprises a second matching part, the second matching part is in sealing connection with a second interface part, the valve shell is provided with a channel, the channel can be communicated with the first accommodating cavity, and the channel is communicated with the flow channel; the axial direction of the valve rod is defined to be the vertical direction, the electric control part is positioned above the valve core part, and at least part of the connecting piece is positioned below the kettle shell.

2. The fluid management device of claim 1 wherein the first interface portion opens toward a bottom of the pitcher housing, the first mating portion being formed at the bottom of the pitcher housing;

the opening of the second connecting port part faces the bottom of the kettle shell, and the electric control part is closer to the bottom of the kettle shell than the second connecting port part along the axial direction of the valve rod.

3. The fluid management device according to claim 1 or 2 wherein the valve housing comprises a main body portion and at least two tube portions, the respective connector comprises at least two second interface portions, the first receiving chamber is located in the main body portion axially of the valve stem, the connector is located on one side of the main body portion, and the pot housing is located on an opposite side of the main body portion;

at least a part of the tube portion is protruded with respect to a sidewall of the main body portion in a radial direction of the first accommodating chamber, the passage is formed in the tube portion and the main body portion, the passage has a port at an inner wall of the main body portion, and the second fitting portion is formed in the tube portion.

4. The fluid management device of claim 1 or 2 wherein the valve housing comprises a body portion, the first receiving cavity is located in the body portion, the second interface portion comprises a second receiving portion having a second receiving cavity, at least a portion of the body portion is located in the second receiving cavity, the channel extends through the body portion in a radial direction of the first receiving cavity, the channel has a channel opening in each of an inner wall of the body portion and an outer wall of the body portion;

the flow channel is provided with a flow channel opening on the wall of the second accommodating part, and the flow channel opening is opposite to at least part of the channel opening.

5. The fluid management device according to claim 4, comprising a sealing member in the second receiving chamber, the sealing member surrounding the passage opening, one side of the sealing member being in contact with a wall of the second receiving portion and the other side of the sealing member being in contact with an outer wall of the body portion, the sealing member being in a compressed state; the sealing element is provided with a communication port, and the flow passage port is communicated with the passage port through the communication port of the sealing element.

6. The fluid management device according to claim 5, wherein the sealing member has a cylindrical shape, the sealing member has a housing chamber, at least a part of the body portion is located in the housing chamber of the sealing member, and the communication port of the sealing member is formed in a side portion of the sealing member; the passage opening is formed in the main body part, the flow passage opening is formed in a side wall of the second accommodating part, the fluid management device comprises a convex rib, the convex rib is in contact with the sealing element and extrudes the sealing element, the convex rib comprises a first ring part, a second ring part and at least two axial parts, one end of each axial part is connected with the first ring part, and the other end of each axial part is connected with the second ring part along the axial direction of the valve rod;

the rib is formed on the valve housing, the rib protrudes towards the second accommodating part relative to the outer wall of the main body part, and the channel opening is positioned between the adjacent axial parts;

and/or the convex rib is formed on the connecting piece, the convex rib is convex to the main body part relative to the wall of the second accommodating part, and the flow passage opening is positioned between the adjacent axial parts.

7. The fluid management device of any of claims 1 or 2 or 4-6 wherein the second interface portion comprises a second receptacle having a second receptacle cavity, the valve housing comprising a body portion at least partially located in the second receptacle cavity;

the flow channels comprise a first flow channel, a second flow channel, a third flow channel, a fourth flow channel and a fifth flow channel, and the first flow channel, the second flow channel, the third flow channel, the fourth flow channel and the fifth flow channel are respectively provided with a flow channel opening on the side wall of the second accommodating part;

the channel is formed in the main body part and comprises a first channel, a second channel, a third channel, a fourth channel and a fifth channel, the first channel is communicated with the first channel, the second channel is communicated with the second channel, the third channel is communicated with the third channel, the fourth channel is communicated with the fourth channel, and the fifth channel is communicated with the fifth channel.

8. The fluid management device of claim 7 comprising a first mounting portion and a mating portion of the first mounting portion, one of the first mounting portion and the mating portion of the first mounting portion being located in the pitcher housing and the other of the first mounting portion and the mating portion being located in the connector; the fluid management device comprises a second mounting part and a mating part of the second mounting part, one of the mating parts of the second mounting part and the second mounting part is located in the valve housing, and the other mating part of the second mounting part and the mating part of the second mounting part is located in the valve housing; along the first radial that holds the chamber, the second installation department is closer than first installation department the first chamber that holds.

9. The fluid management device according to claim 8, wherein the fluid management device comprises a throttle valve, a first heat exchanger, a first pump and/or a second pump, the throttle valve is fixedly or limitedly connected with the first heat exchanger, the first heat exchanger has a first heat exchange passage and a second heat exchange passage, and the throttle valve can throttle down the refrigerant entering the first heat exchange passage;

the connecting piece comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part, at least part of the first flow channel is formed on the first connecting part, at least part of the fourth flow channel is formed on the second connecting part, the first connecting part and the second connecting part are fixedly connected or in limited connection with the first heat exchanger, and the first flow channel is communicated with the fourth flow channel through the second heat exchange channel;

at least part of the fourth flow channel is formed in the third connecting part, the first pump is fixedly connected or in limited connection with the third connecting part, the fourth flow channel is communicated with a cavity of the first pump, at least part of the fourth flow channel is located in the fourth connecting part, the second pump is fixedly connected or in limited connection with the fourth connecting part, and the fourth flow channel is communicated with a cavity of the second pump.

10. The fluid management device according to claim 1 or 2 wherein the second mating portion is located at the bottom of the valve housing, the valve housing comprises a main body portion, the connector comprises at least two second interface portions, the first receiving cavity is located at the main body portion, the connector is located at one side of the main body portion in the axial direction of the stem, and at least part of the pot housing is located at the opposite side of the main body portion;

the channel is formed in the main body part, the inner wall of the main body part and the outer wall of the main body part of the channel are respectively provided with a channel port, the channel port of the channel on the wall of the second interface part faces the side where the electric control part is located along the axial direction of the valve rod, the channel port of the channel on the outer wall of the main body part faces away from the side where the electric control part is located, and the channel port is opposite to at least part of the channel ports.

11. The fluid management device according to claim 10, wherein the flow passages comprise a first flow passage, a second flow passage, a fourth flow passage, and a fifth flow passage, and the first flow passage, the second flow passage, the fourth flow passage, and the fifth flow passage have respective flow passage openings facing the side of the electrical control unit at the second interface unit;

the channel is formed in the main body part and comprises a first channel, a second channel, a third channel, a fourth channel and a fifth channel, the first channel, the second channel, the fourth channel and the fifth channel are provided with channel openings facing the connecting piece at the second matching part, the first flow channel is communicated with the first channel, the second flow channel is communicated with the second channel, the fourth flow channel is communicated with the fourth channel, and the fifth flow channel is communicated with the fifth channel; the third channel is also provided with a channel opening on the pipe part of the valve shell, and the pipe part of the valve shell is closer to the electric control part than the second matching part along the axial direction of the valve rod; the kettle shell is provided with at least one communication channel communicated with the kettle cavity, and the communication channel is provided with an opening on the outer wall of the kettle shell.

12. The fluid management device of claim 11, wherein the fluid management device comprises a throttling valve, a first heat exchanger, a first pump and/or a second pump, the throttling valve is fixedly or limitedly connected with the first heat exchanger, the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, and the throttling valve can throttle and depressurize refrigerant entering the first heat exchange channel;

the fourth runner comprises a first subsection, a second subsection and a third subsection, wherein a runner port is formed in the wall of the second interface part of the first subsection, and the third subsection is respectively communicated with the first subsection and the second subsection; the connecting piece comprises a first connecting part, a second connecting part, a third connecting part, a fourth connecting part and a fifth connecting part, wherein a runner port is arranged on the first connecting part of the first runner and the second runner, the first heat exchanger is fixedly connected or in limited connection with the first connecting part, the second heat exchange channel is communicated with the first runner, and the second heat exchange channel is communicated with the third runner;

the second connecting part comprises a third mounting part and a first connecting pipe, at least part of the first pump is positioned in a mounting cavity of the third mounting part, the first pump is fixedly connected or in limited connection with the third mounting part, the first subsection is provided with a runner port at the third mounting part, the first subsection is communicated with an inlet of the first pump, the second connecting part is provided with a first connecting channel, the first connecting channel is provided with a connecting channel port communicated with an outlet of the first pump at the third mounting part, and the first connecting channel is provided with a connecting channel port at the first connecting pipe;

the third connecting part comprises a fourth mounting part and a second connecting pipe, at least part of the second pump is positioned in a mounting cavity of the fourth mounting part, the second pump is fixedly connected or in limited connection with the fourth mounting part, a runner port is arranged on the fourth mounting part of the third subsection, the third subsection is communicated with an inlet of the second pump, the third connecting part is provided with a second connecting channel, the fourth mounting part of the second connecting channel is provided with a connecting channel port communicated with an outlet of the second pump, and the second connecting channel is provided with a connecting channel port on the second connecting pipe;

the second flow channel has a flow channel opening at the fourth connecting portion, and the fifth flow channel has a flow channel opening at the fifth connecting portion.

13. The fluid management device of claim 12 wherein the second flow passage has a flow passage opening at the fourth connection, the fifth flow passage has a flow passage opening at the fifth connection, the first connection passage has a connection passage opening at the first connection tube, and the second connection passage has a connection passage opening at the second connection tube that are oriented in unison.

14. The fluid management device according to any of claims 7-12, wherein the fluid management device has at least one of the following six modes of operation:

in a first operating mode of the fluid management device, the valve core portion communicates the second channel with the third channel, and the valve core portion communicates the fifth channel with the third channel;

in a second operating mode of the fluid management device, the spool portion communicates the second channel with the third channel, and the spool portion communicates the fifth channel with the first channel;

in a third mode of operation of the fluid management device, the spool portion communicates the second channel with the first channel and the spool portion communicates the fifth channel with the fourth channel;

in a fourth operating mode of the fluid management device, the spool portion communicates the second channel with the third channel, and the spool portion communicates the fifth channel with the fourth channel;

in a fifth mode of operation of the fluid management device, the spool portion communicates the second channel with the fourth channel, and the spool portion communicates the fifth channel with the fourth channel;

in a sixth operating mode of the fluid management device, the spool portion communicates the fifth channel with the second channel or the spool portion communicates the second channel with the first channel, and the spool portion communicates the fifth channel with the first channel.

15. A thermal management system comprising a heat sink, a second heat exchanger, a third heat exchanger, and a fluid management device according to any one of claims 1-14, the fluid management device comprising a throttle valve, a first heat exchanger, a first pump, and/or a second pump, the throttle valve being fixedly or captively connected to the first heat exchanger, the first heat exchanger having a first heat exchange path and a second heat exchange path, the throttle valve being capable of throttling down refrigerant entering the first heat exchange path; the first flow passage is communicated with the fourth flow passage through the second heat exchange passage, the fourth flow passage is communicated with the cavity of the first pump, and the fourth flow passage is communicated with the cavity of the second pump;

the third channel is communicated with the fourth flow channel through the radiator, the second flow channel is communicated with the second pump through the second heat exchanger, and the fifth flow channel is communicated with the first pump through the third heat exchanger.