CN109838586B

CN109838586B - Fluid management assembly and thermal management system

Info

Publication number: CN109838586B
Application number: CN201711230860.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2021-08-31
Anticipated expiration: 2037-11-29
Also published as: CN109838586A

Abstract

The invention discloses a fluid management assembly and a thermal management system. The fluid management assembly and the thermal management system of the invention are beneficial to reducing fluid flow resistance.

Description

Fluid management assembly and thermal management system

Technical Field

The present invention relates to the field of fluid management and thermal management systems.

Background

Generally, the components used in the thermal management system are connected into a system through pipelines, and a relatively long pipeline can relatively increase the flow resistance of fluid, so that the thermal management system is not beneficial to the fluid flowing in the thermal management system when in operation.

Disclosure of Invention

The present invention is directed to a fluid management assembly and a thermal management system that advantageously solve the above-mentioned problems.

A fluid management assembly comprising a flow regulating portion, a connector body and a tubular body, a first side portion of the connector body being in opposing contact with a side portion of the tubular body, at least a portion of the flow regulating portion extending into the connector body; the fluid management assembly further comprises a valve seat and a sliding body, the valve seat is welded and fixed with the inner wall of the pipe body, the sliding body can slide relative to the first wall of the valve seat, the fluid management assembly comprises a first cavity, a second cavity, a first valve cavity and a second valve cavity, the wall of the first valve cavity comprises the inner wall of the pipe body, the wall of the sliding body and the wall of the sliding seat, the first valve cavity is arranged between the sliding body and the valve seat, the first valve cavity and the second valve cavity are not communicated relatively, and the first valve cavity and the second valve cavity change in position along with the sliding of the sliding body; the connecting body comprises a valve body, part of the flow regulating part extends into the valve body, the first cavity is communicated with the second cavity, and the walls of the first cavity and the second cavity comprise the inner wall of the valve body and part of the wall of the flow regulating part;

the connecting body comprises a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are arranged on the wall of the connecting body, the first opening can be communicated with the first cavity and the second cavity, the second opening is communicated with the first cavity, the second opening and the second cavity can be communicated with the second valve cavity, and the third opening is communicated with the first valve cavity;

the connecting body comprises a first path and a second path, the second path comprises the first cavity, the second cavity and the second valve cavity, the first path comprises the first valve cavity, and the first path and the second path are not communicated relatively.

A thermal management system comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a throttling element, and the fluid management assembly described above, the fluid management assembly comprising a first opening, a second opening, a third opening, a fourth opening, a fifth opening, and a first connection port;

the outlet of the compressor is communicated with the inlet pipeline of the first heat exchanger, the outlet of the first heat exchanger is communicated with the fifth opening pipeline, the fourth opening is communicated with the first port of the third heat exchanger, the second port of the third heat exchanger is communicated with the first opening pipeline, the second opening is communicated with the inlet of the second heat exchanger through the throttling element, the outlet of the second heat exchanger is communicated with the third opening pipeline, the first connecting port of the fluid management assembly is communicated with the inlet pipeline of the compressor or the first connecting port of the valve body is communicated with the inlet pipeline of the compressor through the gas-liquid separator.

The fluid management assembly comprises a connecting body, and the channel and the opening of the connecting body are communicated with the second valve cavity and the second cavity, so that the flow resistance of the fluid can be reduced.

Drawings

FIG. 1 is a schematic diagram of a fluid management assembly;

FIG. 2 is an exploded schematic view of the fluid management assembly of FIG. 1;

FIG. 3 is a rear schematic view of the fluid management assembly of FIG. 2;

FIG. 4 is a further exploded schematic view of the fluid management assembly of FIG. 1;

FIG. 5 is a schematic view of the linker of FIG. 2;

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

FIG. 7 is a schematic cross-sectional view taken along A-A of FIG. 6;

FIG. 8 is another schematic cross-sectional view taken along A-A of FIG. 6;

FIG. 9 is a schematic right view of the fluid management assembly of FIG. 1;

FIG. 10 is a schematic cross-sectional view taken along B-B of FIG. 9;

FIG. 11 is a schematic cross-sectional view taken along C-C of FIG. 9;

fig. 12 is a schematic connection diagram of the second adapter tube, the first connection block, and the valve body;

fig. 13 is a perspective view of the second adapter tube;

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

Detailed Description

Referring to fig. 1-13, the fluid management assembly 1 includes a flow regulating portion 42, a connecting body 10 and a tubular body 20, wherein a first outer side portion of the connecting body 10 is in contact with and sealed to a side portion of the tubular body 20, and the sealing is performed by welding or bonding, the contact includes direct contact and contact via a spacer, and the spacer includes solder. Specifically, the shape of the first outer side of the connecting body 10 corresponds to the shape of the tube 20, so as to ensure that the first outer side of the connecting body 10 contacts with the corresponding region of the tube 20, increase the welding area and enhance the sealing performance. The fluid management assembly 1 comprises a second valve chamber 21 and a first valve chamber 22, the second valve chamber 21 and the first valve chamber 22 are arranged in the pipe body 20, and the wall of the second valve chamber 21 comprises the inner wall of the pipe body 20. The first outer side portion further includes a first communication port (not shown) and a second communication port (not shown), the first communication port and the second communication port both face the pipe body 20, a third communication port and a fourth communication port are provided on respective side portions of the pipe body, the first communication port and the third communication port are arranged approximately opposite to each other, the second communication port and the fourth communication port are arranged approximately opposite to each other, the third communication port communicates with the first communication port and the first valve chamber 22, the fourth communication port can communicate with the second valve chamber 21, and the fourth communication port communicates with the second communication port. The fluid management assembly 1 further comprises a sliding body and a valve seat which are arranged in the second valve cavity 21, the valve seat is welded and fixed with the pipe body 20, specifically, the valve seat comprises a first wall and a second wall, the first wall and the second wall are oppositely arranged, the first wall is approximately rectangular, the second wall of the valve seat is approximately the same as the shape of the corresponding part of the inner wall of the pipe body, and the second wall of the valve seat is in contact with the part of the inner wall of the pipe body and is fixed with the inner wall of the pipe body into a whole in a welding mode, an adhesion mode and the like; the first valve cavity 22 is arranged between the sliding body and the valve seat, the sliding body can slide relative to the valve seat, and the position of the first valve cavity 22 changes along with the sliding of the sliding body. Flow rate adjusting unit 42 is fixed to interface 10, specifically, extends into the valve body and is fixed to the valve body, and flow rate adjusting unit 42 includes at least a first valve element (not shown), a second valve element (not shown), and a coil portion 423, wherein second valve element and coil portion 423 are mechanically connected, and coil portion 423 can drive the second valve element to operate. Specifically, the connector 10 includes a first path and a second path, the first path and the second path are not communicated relatively, the fluid management assembly is used as a structural body, the first path and the second path are not communicated, the fluid management assembly is used as a part of a thermal management system, and the first path and the second path are communicated according to an operation principle of the thermal management system. The first path comprises a first cavity 124, a first valve port and a third hole 123, a second hole 122 and a first hole 121, wherein the walls of the first cavity and the second cavity comprise the inner wall of the valve body and part of the wall of the flow regulating part, the first valve port is positioned between the first cavity 124 and the third hole 123, the first valve port is communicated with the third hole 123, the second hole 122 is communicated with the first cavity 124, a first valve core is arranged in the first cavity 124, the first valve core can act in the first cavity 124, in a first working position of the first valve core, the first valve core closes the first valve port, the first valve port is not communicated with the first cavity 124, and the first cavity 124 is not communicated with the third hole 123; in the second operating position of the first valve spool, the first valve spool opens the first port, which communicates with the first chamber 124, and the first chamber 124 communicates with the third orifice 123. The first path further includes a second cavity 125 and a second valve port, the aperture of the second valve port is smaller than the aperture of the first valve port, the second valve port is located between the second cavity 125 and the third hole 123, the second valve port is communicated with the third hole 123, the first hole 121 is communicated with the second cavity 125, and the first hole 121 can be communicated with the second valve cavity 21. The second valve core is disposed in the second chamber 125, the second valve core is capable of operating in the second chamber 125, specifically, after the coil portion 423 receives a driving signal, the coil portion 423 drives the second valve core to operate, and the second valve core adjusts the opening size of the second valve port under the driving of the coil portion 423. The first path further includes a third quantity adjusting channel, a first opening 1211, a second hole 122, a second opening 1221, a first hole 121, and a third connection port, wherein the third quantity adjusting channel is communicated with the first opening 1211, the second hole is communicated with the second opening 1221, the first hole 121 is communicated with the third connection port, the third quantity adjusting channel, the second hole 122, and the first hole 121 are disposed in the valve body, and the first opening 1211, the second opening 1221, and the third connection port are disposed on the wall of the valve body 12. The first opening 1211, the second opening 1221, and the third connection port may be provided in the same wall of the valve body 12, or may be provided in different walls of the valve body.

In operation of the fluid management assembly 1, the first chamber 124 communicates with the second chamber 125, the second valve spool opens the second port, the third orifice 123 has a fluid pressure less than the fluid pressure in the second chamber 125, and in one instance, the fluid in the third orifice 123 opens the first valve spool, fluid exits the valve body 12 through the first orifice 121, thereby placing the first chamber 124 in communication with the second chamber 125 such that the fluid pressure in the first chamber 124 is greater than the fluid pressure in the third orifice 123, the first valve spool closes, and the throttled fluid exits the valve body 12 through the first opening 1211. Specifically, the first cavity 124 and the second cavity 125 are directly communicated or communicated through a channel, and further, the first hole 121 and the second hole 122 are communicated, that is, the second hole 122 is communicated with the second cavity 125 through the first hole 121, or the first hole 121 is communicated with the first cavity 124 through the second hole 122; or the second bore 122 communicates with the first chamber 124, i.e., the second bore 122 communicates with the second chamber 125 through the first chamber 124; alternatively, the first aperture 121 communicates with the second chamber 125, i.e., the first aperture 121 communicates with the first chamber 124 through the second chamber 125. The first chamber 124 and the second chamber 125 are in direct communication, reducing the flow path of fluid between the first chamber 124 and the second chamber 125. In another embodiment, the first hole 121 communicates with the second hole 122, that is, the first cavity 124 communicates with the second cavity 125 through the first hole 121 and the second hole 122. The first cavity 124 and the second cavity 125 are communicated through the second hole 122 and the first hole 121, and the processing is convenient. Wherein the third hole 123 is a straight channel, and the second hole 122 and/or the first hole 121 is a straight channel, thus facilitating the processing; the second hole 122 may also be a bent channel, which facilitates the proper positioning of the third connection port. The first valve port and/or the second valve port may be disposed on a wall of the bore, including a bottom wall and a side wall, of the bore in which the third bore 123 is disposed.

The second path further includes a first communicating channel 127 and a second communicating channel 126, the first communicating channel 127 is communicated with the second communicating channel 126 and the first valve cavity 22, the first communicating channel 127 and the second communicating channel 126 are disposed on the connecting body 10, the second path at least includes a third opening 1261 and a first communicating port, wherein the first communicating port is communicated with the first communicating channel 127, and the third opening 1261 is communicated with the second communicating channel 126. In one embodiment, the first communication channel 127 is a straight channel, the first and third openings 1261 are disposed on different walls of the connecting body 10, and the first communication channel 127 is a straight channel, which facilitates processing and reduces fluid flow resistance. In another embodiment, the second communication channel 126 is a bent channel, such that the first communication channel 127 and a portion of the second communication channel 126 are straight channels, which is advantageous for assembling and fixing the fluid management assembly 1 with other devices.

In one embodiment, the connecting body 10 is formed by machining a single member, and the connecting body 10 of an integral structure includes a first communicating channel 127 and a second communicating channel 126, wherein the first communicating channel 127 is communicated with the second communicating channel 126; the connecting body 10 of the integrated structure comprises a third hole 123, a second hole 122, a first hole 121, a first cavity 124 and a second cavity 125, wherein the third hole 123 can be communicated with the first cavity 124 and the second cavity 125, the first hole 121 is communicated with the second cavity 125, and the second hole 122 is communicated with the first cavity 124. Wherein the first communication passage 127 communicates with the first valve chamber 22, and the first hole 121 can communicate with the second valve chamber 21; the connecting body 10 includes a first opening 1211, a second opening 1221, and a third opening 1261, the first opening communicates with the first communicating channel 127, the third opening 1261 communicates with the first communicating channel 127, and the second opening 1221 communicates with the second hole 122; the first opening 1211, the second opening 1221, and the third opening 1261 may be disposed on the same side portion or different side portions of the connecting body 10. The connector 10 is an integral structure, which can reduce the assembly difficulty and enhance the mechanical strength of the connector 10.

In another embodiment, the connecting body 10 includes a valve body 12 and a first connecting block 13, wherein the first connecting block 13 and the valve body 12 are separately disposed and fixed relative to each other. Specifically, the valve body 12 includes a first connection side 128, the first connection block 13 includes a second connection side 127, and the first connection side 128 is adjacent to the second connection side 127. The adjacent means that two sides are in direct contact or contact through other components, and the components comprise block structures, plate structures, welding layers and the like; here, the proximity includes no spacer or no spacer between the two side portions, but the distance between the two side portions is small, for example, the distance between the two side portions is less than or equal to 50mm, and it can be considered that the third connecting side portion and the fourth connecting side portion are adjacent to reduce the flow resistance, reduce the fluid energy leakage, reduce the size of the fluid management assembly 1, and enhance the mechanical strength of the fluid management assembly 1.

Specifically, the fluid management assembly 1 includes a first passage 133, a second passage 132, a third passage 131, and a fourth passage 141, the fourth passage 141 communicating with the second valve chamber 21, the first passage 133 communicating with the first valve chamber 22, the first passage 133 and the fourth passage 141 being located substantially on opposite sides of the slider. The fluid management assembly 1 comprises at least a first working state and a second working state, in the first working state, the sliding body is located at the first position, the third channel 131 is communicated with the second valve cavity 21, and the sliding body relatively isolates the second channel 132 from the second valve cavity 21, or in the first working state, the fourth channel 141 is communicated with the third channel 131, and the second channel 132 is not communicated with the first channel; in the second working state, the first valve spool is located at the second position, the third passage 131 is communicated with the first valve chamber 22, the fourth passage is communicated with the first valve chamber 22, that is, the third passage 131 is communicated with the first passage through the first valve chamber 22, and the second passage 132 is communicated with the second valve chamber 21, that is, the third passage is communicated with the fourth passage 141. Wherein, the third channel 131, the second channel 132 and the first channel are disposed on the valve body 12, the second channel 132 may be a part of the first hole 121, or the second channel 132 is communicated with the first hole 121, the first channel may be communicated with the second communicating channel 126, or may be a part of the second communicating channel 126; the main body further comprises a second connecting block 14, the second connecting block 14 is welded and fixed with the fluid pipe 20, the second connecting block 14 is arranged opposite to the valve body 12, the second connecting block 14 comprises a fourth channel 141 and a fifth opening 1411, the fifth opening 1411 is communicated with the fourth channel 141, and the fifth opening 1411 is arranged on one wall of the second connecting block 14. The fluid management assembly 1 further includes a fourth opening 1311, the fourth opening 1311 being in communication with the third passageway 131, the fourth opening 1311 being disposed at one side of the valve body 12.

The fluid management assembly 1 comprises a first connecting pipe 18 and a second connecting pipe 15, wherein the first connecting pipe 18 and the second connecting pipe 15 are both hollow, the end part of the first connecting pipe 18 is positioned in the valve body 12 and/or the first connecting block 13, and the first connecting pipe 18 is communicated with the valve body 12 and the first connecting block 13. The valve body 12 and the first connecting block 13 are connected and communicated through the first connecting pipe 18, so that the fluid valve body 12 and the first connecting block 13 can be conveniently processed, the valve body 12 and the first connecting block 13 can be accurately assembled and positioned, and the sealing performance of a flow channel is ensured. Likewise, the end of the second connection pipe 15 is located inside the valve body 12 and the first connection block 13, and the second connection pipe 15 communicates the valve body 12 and the first connection block 13. The valve body 12 and the first connecting block 13 are connected and communicated through the second connecting pipe 15, so that the valve body 12 and the first connecting block 13 can be conveniently machined, the valve body 12 and the first connecting block 13 can be accurately assembled and positioned, and the sealing performance of a channel is ensured.

The connection of the first nipple 18, the valve body 12 and the first connection block 13 is described in detail below. The first connection pipe 18 is provided separately from the valve body 12 and the first connection block 13, the first connection side 128 is provided with a first opening portion 1281, the first connection side 128 is provided with a second opening portion 1271, the first opening portion 1281 and the second opening portion 1271 are oppositely provided, the end of the first connection pipe 18 extends into the first opening portion 1281 and the second opening portion 1271, and at most part of the first connection pipe 18 is located between the first connection side 128 and the second connection side 127: when the first connecting side 128 and the second connecting side 127 are attached, a part of the first connecting pipe 18 is located at the first opening 1281, and another part of the first connecting pipe 18 is located at the second opening 1271; when the first connecting side 128 and the second connecting side 127 are spaced apart by a small distance, generally less than or equal to 50mm, a portion of the first nipple 18 is located between the first connecting side 128 and the second connecting side 127. The second opening portion 1271 is communicated with the first passage, the first opening portion 1281 is communicated with the first communicating passage 127, the first passage of the first connecting block 13 is communicated with the inner cavity of the first connecting pipe 18, the first communicating passage 127 of the valve body 12 is communicated with the inner cavity of the first connecting pipe 18, the aperture of the first passage is smaller than or equal to the inner diameter of the second opening portion 1271, and the aperture of the first communicating passage 127 is smaller than or equal to the inner diameter of the first opening portion 1281. The first connecting pipe 18, the valve body 12 and the first connecting block 13 are arranged in a split manner, so that processing is facilitated, the first connecting pipe 18 is positioned through the first opening portion 1281 and the second opening portion 1271, the aperture of the first channel is smaller than that of the second opening portion 1271, and the aperture of the first communicating channel 127 is smaller than that of the first opening portion 1281, so that the flow channel resistance is smaller when fluid flows through the valve body 12 and the first connecting block 13. In addition, the inner diameters of the first communication channel 127, the first channel and the first connecting pipe 18 are substantially the same, so that the influence on the flow resistance caused by the throttling effect generated when the difference is too large is avoided. The first communication passage 127, the first passage, and the first adapter 18 have substantially the same inner diameter, including slightly larger and smaller inner diameters of the first communication passage 127, the first passage, and the first adapter 18.

Specifically, the outer diameter of the first connecting pipe 18 is smaller than the first opening 1281 and greater than or equal to the second opening 1271, and the first connecting pipe 18 is in interference fit with the valve body 12; after the first connecting pipe 18 is in interference fit with the valve body 12, the first connecting pipe 18 and the first connecting block 13 are assembled and fixed, and the positioning is more accurate. As another embodiment, the outer diameter of the first connecting pipe 18 is smaller than the second opening 1271 and greater than or equal to the first opening 1281, and the first connecting pipe 18 is in interference fit with the first connecting block 13; after the first connecting pipe 18 is in interference fit with the first connecting block 13, the first connecting pipe 18 and the valve body 12 are assembled and fixed, and the positioning is more accurate. Herein, the interference fit includes a case where the minimum interference is zero.

Specifically, the valve body 12, the first connecting block 13 each provide a second platform portion, one of the valve body 12, the first connecting block 13 provides a first platform portion 1282, the first platform portion is located around the second opening portion or the first opening portion 1281, and the second platform portion is provided around the first passage and the second communicating passage 126. The fluid management assembly 1 comprises a sealing member 17, the sealing member 17 is positioned on the first platform part, and the valve body 12 and the first connecting block 13 are pressed against the sealing member 17 after being acted by force to form a seal; as an embodiment, the first platform portion is located around the first opening portion 1281, and at least one of the second platform portion of the valve body 12 and the second platform portion of the first connection block 13 abuts against the end portion of the first connection pipe 18; the distance between the second platform portion of the first connecting block 13 and the second platform portion of the valve body 12 is greater than or equal to the length of the first connecting pipe 18. Therefore, the first connecting pipe 18, the valve body 12 and the first connecting block 13 are conveniently positioned, and the performance of the fluid management assembly 1 is prevented from being influenced. In addition, first takeover 18 and first connecting block 13 interference fit earlier, and then assemble the setting with valve body 12, help the installation operation more convenient. In another embodiment, the first connecting block 13 is provided with a second platform, the valve body 12 is provided with a first platform and a second platform, and the sealing member 17 is located on the first platform. Thus, after the first connecting pipe 18 is in interference fit with the first connecting block 13, the first connecting pipe and the valve body 12 are assembled with the first platform part through the sealing member 17, and the performance requirement of the fluid management assembly 1 is ensured. As another embodiment, the valve body 12 and the first connecting block 13 may be provided with a first platform portion and a second platform portion, and the valve body 12 and the first connecting block 13 realize the sealing arrangement of the first platform portion and the sealing member 17.

As another embodiment, the first connection pipe 18 is integrally provided with one of the valve body 12 or the first connection block 13, the first connection pipe 18 protrudes from the first connection side 128 or the second connection side 127, and the other of the valve body 12 and the first connection block 13 is provided with a first opening portion 1281 and a first platform portion.

Specifically, as an embodiment, the first connection pipe 18 is provided integrally with the first connection block 13, the first connection pipe 18 integrally protrudes from the second connection side portion 127, and the valve body 12 is provided with a first opening portion 1281 and a first platform portion located around the first opening portion 1281; the fluid management assembly 1 further comprises a sealing member 17, the sealing member 17 is positioned on the first platform, and the valve body 12 and the first connecting block 13 are pressed against the sealing member 17 after being acted by force to form a seal; in this embodiment, the first connecting pipe 18 is integrally provided with one of the valve body 12 and the first connecting block 13, so that the assembly is convenient, a certain connecting strength can be ensured, and the sealing performance is relatively good.

Specifically, the root portion of the first adapter tube 18 is provided with a first flange 181, the first flange 181 is provided integrally with the first connection block 13, the first flange 181 is provided opposite to a first platform portion, the valve body 12 is provided with a first communicating passage 127 and a second platform portion, the second platform portion is located around the first communicating passage 127, the first platform portion is located around the second opening portion 1271, and the inner diameter of the second communicating passage 126 is smaller than the inner diameter of the second opening portion 1271. The flow resistance of the fluid flowing into the inner cavity of the first adapter 18 through the fluid is relatively unaffected, so that the fluid flows smoothly.

As another embodiment, the first connection block 13 is provided with a first channel and a second platform part, the second platform part is arranged around the first channel, the first platform part is arranged around the first opening 1281, the inner diameter of the first channel is smaller than the inner diameter of the first opening 1281, and the flow resistance of the fluid flowing into the flow hole through the inner cavity of the first connection pipe 18 is relatively unaffected, so that the fluid flows smoothly, and certain performance requirements are ensured.

As another embodiment, each of the first opening 1281 and the second opening 1271 includes a first platform, the first connecting tube 18 includes a first groove and a second groove arranged in parallel, the first groove and the second groove are substantially annular, an axis of the first connecting tube 18 passes through the first groove and the second groove, the first groove and the second groove are distributed outside the first connecting tube 18, the first groove is located at the first opening 1281, the second groove is located at the second opening 1271, one sealing member 17 is located at the first groove and abuts against the first opening 1281 to form a seal, and the other sealing member 17 is located at the second groove and abuts against the second opening 1271 to form a seal; the end of the first connecting pipe 18 abuts against at least one second platform part to prevent the first connecting pipe 18 from sliding under the action of fluid pressure to influence the sealing effect; in other embodiments, the first opening portion 1281 and the second opening portion 1271 each include a second platform portion, at least one of the first interface and the second interface portion is provided with the first platform portion, the first connecting pipe 18 further includes a second flange, the second flange protrudes relative to the other portion of the first connecting pipe 18, or the outer diameter of the second flange is larger than the outer diameter of the other portion of the first connecting pipe 18, and the second flange abuts against the first platform portion, which is beneficial to prevent the first connecting pipe 18 from sliding under the action of fluid pressure, and thus the sealing effect is reduced.

Here, the second nipple 15, the third opening 1291 and the fourth opening 1294 will be briefly described, and more details can be referred to the description of the first nipple 18 and the first opening 1281 and the second opening 1271. In one embodiment, the first connecting side 128 defines a third opening 1291, the second connecting side 127 defines a fourth opening, the diameter of the second channel 132 is smaller than or equal to the inner diameter of the fourth opening, and the diameter of the first hole 121 is smaller than or equal to the inner diameter of the third opening; at least one of the first connecting block 13 and the valve body 12 is provided with a third land 1285, the third land 1285 being located around the third opening and/or the fourth opening, the valve body 12 and the first connecting block 13 is provided with a fourth land 1286, the fourth land 1286 being located around the second passage 132, the first hole 121. As an embodiment, the second connection pipe 15 is provided separately from the valve body 12, the second connection pipe 15 is provided separately from the first connection block 13, and the fluid management assembly includes a sealing member 17; the second adapter 15 comprises a third groove 1531 and a fourth groove 1532 arranged in parallel, the third groove is located at the third connecting part, the fourth groove is located at the fourth connecting part, one sealing element 17 is located at the third groove and abutted against the third opening, and the other sealing element 17 is located at the fourth groove and abutted against the fourth opening; the end of the second connecting tube 15 abuts against at least one fourth platform part 1286; or the second nipple 15 includes a third flange 152, the third flange 152 abutting the third platform 1285. As another embodiment, the end of the second nipple 15 abuts at least one fourth plateau 1286, and the fluid management assembly 1 comprises a seal 17, the seal 17 being located at the third plateau 1285. As another embodiment, the second connection pipe 15 is integrally provided with one of the first connection block 13 and the valve body 12, the second connection pipe 15 protrudes from the first connection side 128 or the second connection side 127, the other of the first connection block 13 and the valve body 12 is provided with a third opening 1584 and a third platform 1285, and the third platform 1285 is located around the third opening; the fluid management assembly 1 further comprises a seal 17, the seal 17 being located in the third platform portion 1285.

The valve body 12 comprises a first through hole, the first connecting block 13 comprises a first mounting hole matched with the first through hole in position, the fluid control assembly further comprises a first fastening piece, the first fastening piece extends into the first through hole and the first mounting hole, an opening of the first mounting hole is arranged on the second connecting side part 127, and the first fastening piece is fixedly arranged with the valve body 12 and the first connecting block 13; the first connecting side portion 128 is closely arranged with the second connecting side portion 127 or closely arranged via other members by a first fastener, and is fixed by a fastener, which includes a member to which a bolt or the like can be fastened. Thus, the sealing member 17 located at the third platform 1285 is pressed against the second connecting side 127 and the first connecting side 128 to form a seal, thereby preventing fluid from leaking out. One opening of the first through hole is located on substantially the same side of the valve body 12 as the second connection port, and the other opening of the second through hole is provided on the first connection side 128. The fluid management assembly 1 comprises a positioning pin, the first connection side 128 comprises a positioning hole, the second connection side 127 comprises a limiting hole, or the second connection side 127 comprises a positioning hole, the first connection side 128 comprises a limiting hole, and the positioning pin is located in the limiting hole and the positioning hole, so that the first connection block 13 and the valve body 12 are fixedly arranged without displacement.

The valve body 12 is arranged opposite to the first connecting block 13, so that the volume of the fluid management assembly 1 is reduced, and the spatial layout is reduced.

A first operating mode: when the sliding body is at the first working position, the fourth channel 141 is communicated with the third channel 131, the second channel 132 is not communicated with the first channel, the first valve core opens the first valve port, the third hole 123 is communicated with the second hole 122 and the first hole 121, and the second valve core closes the second valve port; the fifth opening 1411 communicates with the fourth opening 1311, and the first opening 1211 communicates with the second opening 1221.

A second working mode: when the sliding body is in the second working position, the fourth passage 141 is communicated with the second passage 132 through the second valve cavity 21, the third passage 131 is communicated with the first passage through the first valve cavity 22, the first valve core closes the first valve port, the second valve core opens the second opening, and the first hole 121 and the second hole 122 are communicated with the third hole 123 through the second valve port; the fifth opening 1411 communicates with the first opening 1211, and the fourth opening 1311 communicates with the second opening 1221. Opening as described herein includes the second valve port portion being split and fully open.

The third working mode is as follows: when the sliding body is at the first working position, the fourth channel 141 is communicated with the third channel 131, the second channel 132 is not communicated with the first channel, the first valve core closes the first valve port, the second valve core opens the second valve port, and the second hole 122 and the first hole 121 are communicated with the third hole 123; the fifth opening 1411 communicates with the fourth opening 1311, and the first opening 1211 communicates with the second opening 1221. Opening as described herein includes the second valve port portion being split and fully open.

The fluid management assembly of the above embodiments may be applied in a thermal management system, such as a vehicle thermal management system, a home thermal management system, or a commercial thermal management system. Taking a vehicle thermal management system as an example for introduction, the fluid management assembly applied to the vehicle thermal management system can be used for realizing vehicle air conditioning cooling, heating, dehumidification and the like.

A vehicle thermal management system comprising a compressor, a fluid management assembly, first, second and third heat exchangers, and a throttling element, a temperature damper,

the fluid management assembly comprises a first opening 1211, a second opening 1221, a third opening 1261, a fourth opening 1311 and a fifth opening 1411, an outlet of the compressor is communicated with an inlet pipeline of the first heat exchanger, an outlet of the first heat exchanger is communicated with the fifth opening 1411 through a pipeline, a first port of the third heat exchanger is communicated with a fourth external interface pipeline, a second port of the third heat exchanger is communicated with the first opening 1211 through a pipeline, the second opening 1221 is communicated with an inlet pipeline of the second heat exchanger through a throttling element, an outlet of the second heat exchanger is communicated with the third opening through a pipeline, a first connecting port is communicated with the inlet pipeline of the compressor, the first heat exchanger and the second heat exchanger are arranged in an air duct of the air-conditioning box, a temperature air door is arranged on the upper air of the first heat exchanger, the temperature is closed, an air flow bypasses the first heat exchanger, and the temperature air door is opened at least part of the first heat exchanger.

In one embodiment, the fluid management assembly 1 further comprises a cylinder 30 and a gas outlet tube, and the connecting body 10 is sealed to the cylinder 30 to form a third chamber 31, or the wall of the third chamber 31 comprises the inner wall of the cylinder 30 and the wall of the connecting body 10. The gas outlet pipe is disposed in the third chamber 31. The connecting body 10 includes the first path and the second path, which will not be described in detail. The first path further includes a first communication hole 111, a third chamber 31 and a sixth opening 1111 communicated with the first communication hole 111, the third chamber 31 is communicated with the second communication channel 126 and the first communication hole 111, specifically, one port of the gas discharge pipe is sealed and fixed with the first communication hole 111 and is communicated with the first communication hole 111, and the other port of the gas discharge pipe is communicated with the third chamber 31, so as to communicate the third chamber 31 with the first communication hole 111. The sixth opening 1111 is disposed at one side of the connecting body 10.

In one embodiment, the connecting body 10 is integrally formed by a member, and the connecting body 10 of an integral structure includes a first communicating channel 127, a second communicating channel 126 and a first communicating hole 111, wherein the first communicating channel 127 is communicated with the second communicating channel 126, and the first communicating hole 111 and the second communicating channel 126 are communicated with the third cavity 31; the connecting body 10 of the integral structure comprises a third hole 123, a second hole 122, a first hole 121, a first cavity 124 and a second cavity 125, wherein the third hole 123 can be communicated with the first cavity 124 and the second cavity 125, the first hole 121 is communicated with the second cavity 125, and the second hole 122 is communicated with the third hole 123; connector 10 further includes a sixth opening 1111, and third opening 1261 communicates with first communication hole 111.

In another embodiment, the connecting body 10 is assembled and fixed by the top cover 11 and the valve body 12, and the fixing manner includes welding or fixing by a fastener. The manner in which the top cover 11 and the valve body 12 are fixed by the fastener will be described in detail. The connecting body 10 includes a valve body 12 and a top cover 11, and the valve body 12 and the top cover 11 are fixedly disposed. The top cover 11 and the cylinder 30 are sealed, and the first communication hole 111, the second communication hole 112 and the sixth opening 1111 are arranged on the top cover 11; the first path further includes a second communication hole 112, and the second communication hole 112 is disposed opposite to and communicates with the second communication passage 126. The second path is provided in the valve body 12. The valve body 12 includes a third connecting side portion 129, the top cover 11 includes a fourth connecting side portion 113, the third connecting side portion 129 is in contact with the fourth connecting side portion 113, the contact between the two side portions is direct contact or contact through other members, the contact between the two side portions is small, such as the distance between the two side portions is greater than or equal to zero and less than or equal to 50 mm. To reduce fluid energy leakage, to enhance the mechanical strength of the fluid management assembly 1 and to reduce the size of the fluid management assembly.

The connection relationship between the third adapter tube 16, the top cover 11 and the valve body 12 will be briefly described below. The fluid management assembly 1 comprises a third connecting pipe 16, the third connecting pipe 16 is hollow, the end of the third connecting pipe 16 is positioned in the valve body 12 and/or the top cover 11, and the third connecting pipe 16 is communicated with the valve body 12 and the top cover 11. The valve body 12 and the top cover 11 are connected and communicated through the third connecting pipe 16, so that the valve body 12 and the top cover 11 can be conveniently processed, the valve body 12 and the top cover 11 can be accurately assembled and positioned, and the sealing performance of a flow channel is ensured.

In one embodiment, the third connecting pipe 16 is provided separately from the valve body 12 and the top cover 11. Specifically, the third connecting side portion 129 is provided with a fifth opening portion, the fourth connecting side portion 113 is provided with a sixth opening portion 1131, the fifth opening portion and the sixth opening portion are oppositely arranged, the end portion of the third connecting pipe 16 extends into the fifth opening portion and the sixth opening portion, and at most part of the third connecting pipe 16 is located between the third connecting side portion 129 and the fourth connecting side portion 113: when the third connecting side portion 129 and the fourth connecting side portion 113 are fitted, a part of the third connecting pipe 16 is positioned at the fifth opening portion, and the other part of the third connecting pipe 16 is positioned at the sixth opening portion; when the third connecting side portion 129 and the fourth connecting side portion 113 are spaced apart by a small distance, a portion of the third nipple 16 is located between the third connecting side portion 129 and the fourth connecting side portion 113. The fifth opening part is communicated with the second communication channel 126, the sixth opening part is communicated with the second communication hole 112, the second communication channel 126 of the valve body 12 is communicated with the inner cavity of the third connecting pipe 16, the second communication hole 112 of the top cover 11 is communicated with the inner cavity of the third connecting pipe 16, the aperture of the second communication channel 126 is smaller than or equal to the inner diameter of the fifth opening part, and the aperture of the second communication hole 112 is smaller than or equal to the inner diameter of the sixth opening part. The third connecting pipe 16 is separated from the top cover and the valve body, which not only facilitates the processing design, but also positions the third connecting pipe 16 through the fifth opening and the sixth opening, the aperture of the second communicating channel 126 is smaller than the fifth opening, and the aperture of the second communicating hole 112 is smaller than the sixth opening, so that the flow channel resistance is smaller when the fluid flows through the valve body 12 and the top cover 11. In addition, the inner diameters of the second communication channel 126, the second communication hole 112 and the third adapter 16 are substantially the same, so that the flow resistance is prevented from being influenced by the throttling effect generated when the difference is too large. The inner diameters of the second communication passage 126, the second communication hole 112, and the third adapter 16 are substantially the same herein, including a case where the inner diameters of the second communication passage 126, the second communication hole 112, and the third adapter 16 are slightly larger and smaller.

Specifically, the outer diameter of the third connecting pipe 16 is smaller than the fifth opening and greater than or equal to the sixth opening, the third connecting pipe 16 is in interference fit with the valve body 12, and after the third connecting pipe 16 is in interference fit with the valve body 12, the third connecting pipe 16 and the top cover 11 are assembled and fixed, so that the positioning is more accurate. As another embodiment, the outer diameter of the third connecting pipe 16 is smaller than the sixth opening and greater than or equal to the fifth opening, and the third connecting pipe 16 is in interference fit with the top cover 11; after the third connecting pipe 16 is in interference fit with the top cover 11, the first connecting pipe 18 and the valve body 12 are facilitated to be fixed and positioned more accurately. Herein, the interference fit includes a case where the minimum interference is zero.

More specifically, the valve body 12 and the top cover 11 each provide a second land portion, and one of the valve body 12 and the top cover 11 provides a fifth land portion, and a sixth land portion is located around the fifth opening portion and the sixth opening portion. The fluid management assembly 1 comprises a sealing member 17, the sealing member 17 is positioned at the fifth platform part, and the valve body 12 and the top cover 11 are pressed against the sealing member 17 after being acted by force to form a seal; in one embodiment, the fifth platform is located around the fifth opening, and at least one of the sixth platform of the valve body 12 and the sixth platform of the top cover 11 abuts against the end of the third connecting pipe 16; the distance between the sixth land of the valve body 12 and the sixth land of the top cover 11 is greater than or equal to the length of the third adapter tube 16. Therefore, the third connecting pipe 16, the top cover 11 and the valve body 12 can be conveniently positioned, and the performance of the fluid management assembly 1 is prevented from being influenced. In addition, the third connecting pipe 16 is in interference fit with the valve body 12, and then is assembled with the top cover 11, so that the installation and operation are facilitated to be more convenient and faster. In another embodiment, the valve body 12 is provided with a sixth land, the top cover 11 is provided with a fifth land and a sixth land, and the seal 17 is located in the fifth land. Thus, after the third connecting pipe 16 is in interference fit with the valve body 12, the third connecting pipe and the top cover 11 are assembled through the sealing member 17 and the fifth platform part, and the performance requirements of the fluid management assembly 1 are ensured. As other embodiments, the valve body 12 and the top cover 11 may be provided with a fifth platform portion and a sixth platform portion, and the valve body 12 and the top cover 11 realize the sealing arrangement of the fifth platform portion and the sealing member 17.

As another embodiment, the third adapter tube 16 is integrally provided with one of the valve body 12 or the top cover 11, the third adapter tube 16 protrudes from the third connecting side 129 or the fourth connecting side 113, and the other of the valve body 12 and the top cover 11 is provided with a fifth opening portion and a fifth land portion.

Specifically, as an embodiment, the third nozzle 16 is integrally provided with the valve body 12, one end of the third nozzle 16 protrudes from the third connecting side portion 129, the top cover 11 is provided with a fifth opening portion and a fifth land portion, and the fifth land portion is located around the fifth opening portion; the fluid management assembly 1 further comprises a sealing member 17, the sealing member 17 is positioned at the fifth platform part, and the valve body 12 and the top cover 11 are pressed against the sealing member 17 after being acted by force to form sealing; in this embodiment, the third connecting pipe 16 is integrally provided with one of the valve body 12 and the top cover 11, so that the assembly is convenient, a certain connecting strength can be ensured, and the sealing performance is relatively good. Specifically, the root of the third adapter tube 16 is provided with a fifth flange, the fifth flange is integrally provided with the valve body 12, the fifth flange is disposed opposite to a fifth platform, the top cover 11 is provided with a second communication hole 112 and a sixth platform, the sixth platform is located around the second communication hole 112, the fifth platform is located around the sixth opening, and the inner diameter of the second communication hole 112 is smaller than the inner diameter of the sixth opening. The flow resistance of the fluid flowing into the inner cavity of the third adapter tube 16 through the fluid is relatively unaffected, so that the fluid flows smoothly. As another embodiment, the valve body 12 is provided with a second communicating channel 126 and a sixth platform portion, the sixth platform portion is disposed around the second communicating channel 126, the fifth platform portion is disposed around the first opening portion, and the inner diameter of the second communicating channel 126 is smaller than that of the fifth opening portion, so that the flow resistance of the fluid flowing into the through hole through the inner cavity of the connecting pipe is relatively unaffected, the fluid flows smoothly, and certain performance requirements are ensured.

As another embodiment, the fifth opening portion and the sixth opening portion each include a sixth platform portion, the third connecting pipe 16 includes a first groove and a second groove arranged in parallel, the first groove and the second groove are substantially annular and distributed outside the third connecting pipe 16, an axis of the third connecting pipe 16 passes through the first groove and the second groove, the first groove is located at the fifth opening portion, the second groove is located at the sixth opening portion, one sealing member 17 is located at the first groove and abuts against the fifth opening portion to form a seal, and the other sealing member 17 is located at the second groove and abuts against the sixth opening portion to form a seal; the end part of the third connecting pipe 16 is abutted against at least one sixth platform part so as to prevent the third connecting pipe 16 from sliding under the action of fluid pressure and influencing the sealing effect; in other embodiments, the fifth opening portion and the sixth opening portion each include a sixth terrace portion, at least one of the fifth opening portion and the sixth opening portion is provided with a fifth terrace portion, the third connecting pipe 16 further includes a sixth flange, the sixth flange protrudes relative to other portions of the third connecting pipe 16, or the outer diameter of the sixth flange is larger than that of other portions of the third connecting pipe 16, and the sixth flange abuts against the fifth terrace portion, so that the third connecting pipe 16 is prevented from sliding under the action of fluid pressure, and the sealing effect is reduced.

The valve body 12 comprises a second through hole, the top cover 11 comprises a second mounting hole matched with the second through hole in position, the fluid management assembly 1 further comprises a second fastening piece, the second fastening piece extends into the second through hole and the second mounting hole, an opening of the second mounting hole is formed in the fourth connecting side portion 113, and the second fastening piece is fixedly arranged with the valve body 12 and the top cover 11; under the action of the second fastening member, the third connecting side portion 129 and the fourth connecting side portion 113 are closely arranged or closely arranged via other members, and are fixed by the fastening member, which includes a member that can be fastened by a bolt or the like. In this way, the sealing member 17 located in the fifth platform portion is pressed by the third connecting side portion 129 and the fourth connecting side portion 113, so as to form a seal and prevent the fluid from leaking. In another embodiment, the valve body 12 further comprises a mounting plate, the length of the first through hole is smaller than the length of the second communication channel 126, the first through hole is disposed on the mounting plate, and the mounting plate is substantially located at the side of the valve body 12. The mounting plate may be integrally formed or welded with the rest of the valve body 12.

The fluid management assembly 1 includes a positioning pin, the third connecting side portion 129 includes a positioning hole, the fourth connecting side portion 113 includes a limiting hole, or the fourth connecting side portion 113 includes a positioning hole, the third connecting side portion 129 includes a limiting hole, and the positioning pin is located in the limiting hole and the positioning hole, so that the valve body 12 and the top cover 11 are fixedly disposed without being displaced.

The refrigerant in the third opening 1261 enters the third cavity 31 through the second communication channel 126, the liquid refrigerant is stored in the cylinder 30, and the gaseous refrigerant is discharged out of the first communication hole 111 through the exhaust pipe. The valve body 12 and the top cover 11 are oppositely arranged, so that the volume of the fluid management assembly is reduced, and the spatial layout is reduced.

It will be appreciated that the second communication passage 126 and the first passage are generally straight bores to facilitate fluid flow from first valve chamber 22 into third chamber 31; the first communicating channel 127 is intersected with the second communicating channel 126, the axis of the first communicating channel 127 and the axis of the second communicating channel 126 form a right angle, and the side where the third opening 1261 is positioned is intersected with the third connecting side portion 129 or the fourth connecting side portion 113; the included angle between the axis of the first communicating channel 127 and the axis of the second communicating channel 126 is an acute angle, the side where the third opening 1261 is located can intersect with the third connecting side 129, and the axis of the first hole 121 and the axis of the second channel 132 are approximately in the same straight line, so that the fluid in the second valve chamber 21 can conveniently enter the second chamber 125; the fluid management assembly 1 further comprises an installation part, the installation part barrel 30 is fixedly welded or fixed with the barrel 30 through a hoop, the installation part further comprises an installation hole, and the fluid management assembly 1 can be fixed with other components through a welding mode and can also be assembled and fixed through the installation hole and a bolt.

The fluid management assembly 1 comprises at least the following operating states:

a first operating mode: the fourth channel 141 is communicated with the third channel 131, the second channel 132 is not communicated with the first channel, the first valve core opens the first valve port, the third hole 123 is communicated with the second hole 122 and the first hole 121, and the second valve core closes the second valve port; the fifth opening 1411 communicates with the fourth opening 1311, and the first opening 1211 communicates with the second opening 1221.

A second working mode: the fourth passage 141 communicates with the second passage 132 through the second valve chamber 21, the third passage 131 communicates with the first passage through the first valve chamber 22, the first valve spool closes the first port, the second valve spool opens the second opening, and the first orifice 121 and the second orifice 122 communicate with the third orifice 123 through the second port; the fifth opening 1411 communicates with the first opening 1211, and the fourth opening 1311 communicates with the sixth opening 1111. Opening as described herein includes the second valve port portion being split and fully open.

The third working mode is as follows: the fourth channel 141 is communicated with the third channel 131, the second channel 132 is not communicated with the first channel, the first valve core closes the first valve port, the second valve core opens the second valve port, and the second hole 122 and the first hole 121 are communicated with the third hole 123; the fifth opening 1411 communicates with the fourth opening 1311, and the first opening 1211 communicates with the second opening 1221. Opening as described herein includes the second valve port portion being split and fully open.

The fluid management assembly 1 of the above embodiment may be applied to a thermal management system, such as a vehicle thermal management system, a home thermal management system, or a commercial thermal management system. Taking a vehicle thermal management system as an example for introduction, the fluid management assembly applied to the vehicle thermal management system can be used for realizing vehicle air conditioning cooling, heating, dehumidification and the like.

A vehicle thermal management system comprises a compressor 1', a fluid management assembly 1, a first heat exchanger 2, a second heat exchanger 3, a third heat exchanger 4, a throttling element 5 and a temperature air door 6, wherein the fluid management assembly 1 comprises a fifth opening 1411, a fourth opening 1311, a first opening 1211, a second opening 1221, a third opening 1261 and a sixth opening 1111, an outlet of the compressor is communicated with an inlet pipeline of the first heat exchanger, an outlet of the first heat exchanger is communicated with the fifth opening 1411 through a pipeline, a first port of the third heat exchanger is communicated with the fourth opening 1311 through a pipeline, a second port of the third heat exchanger is communicated with the first opening 1211 through a pipeline of the throttling element, an outlet of the second heat exchanger is communicated with the third opening 1261 through a pipeline, the sixth opening 1111 is communicated with an inlet pipeline of the compressor, the first heat exchanger and the second heat exchanger are arranged in an air duct of an air conditioning box, the temperature air door is arranged on the upper air of the first heat exchanger, the temperature air door is closed, the air flow bypasses the first heat exchanger, and at least part of the first heat exchanger is opened to participate in heat exchange.

The vehicle thermal management system has the following modes:

1. a heating mode; after being discharged from the compressor, the fluid enters the first heat exchanger, the temperature damper is opened, the fluid exchanges heat with the airflow in the first heat exchanger, the fluid releases heat, the fluid discharged from the first heat exchanger enters the fluid management assembly through the fifth opening 1411, and the fluid management assembly 1 is in a second working mode: after fluid enters the fluid management assembly through the fifth opening, the fluid enters the first hole through the second channel, the second valve core opens the second valve port, the throttled and depressurized fluid enters the second port of the third heat exchanger through the first opening, the fluid absorbs heat of airflow in the third heat exchanger, the fluid enters the fourth opening through the first port of the third heat exchanger, and after the fluid is subjected to vapor-liquid separation, gas enters the inlet of the compressor through the sixth opening 1111 to complete a heating cycle.

2. A cooling mode; after being discharged from the compressor, the fluid enters the first heat exchanger, the temperature air door is closed, the airflow bypasses the first heat exchanger, the fluid does not participate in heat exchange in the first heat exchanger, the fluid discharged from the first heat exchanger enters the fluid management assembly through the fifth opening 1411, and the fluid management assembly is in a first working mode: after fluid enters the fluid management assembly through the fifth opening, the fluid is discharged from the fourth opening 1311 through the third channel 131 and enters the first port of the third heat exchanger, the fluid exchanges heat with airflow in the third heat exchanger, the fluid releases heat, the fluid enters the first opening 1211 through the second port of the third heat exchanger, the first valve core opens the first valve port, the fluid enters the throttling element through the second opening 1221, the fluid is throttled and depressurized and then the second heat exchanger absorbs the airflow heat to reduce the temperature of the air conditioning box, the fluid enters the fluid management assembly through the third outer inlet after being discharged from the second heat exchanger, and after the fluid is subjected to vapor-liquid separation, gas enters the inlet of the compressor through the sixth opening 1111 to complete a refrigeration cycle.

3. The first dehumidification mode: the fluid enters the first heat exchanger after being discharged from the compressor, the temperature air door is opened, the fluid exchanges heat with the airflow in the first heat exchanger, the fluid releases heat, the fluid discharged from the first heat exchanger enters the fluid management assembly through the fifth opening, and the fluid management assembly is in a second working mode: after fluid enters the fluid management assembly through the fifth opening, part of the fluid enters the first hole through the second channel, the second valve core opens the second valve port, the throttled and depressurized fluid enters the second port of the third heat exchanger through the first opening, the fluid absorbs airflow heat in the third heat exchanger, and the fluid finally enters the inlet of the compressor through the first port of the third heat exchanger to complete a heating cycle; and the other part of fluid enters the throttling element 5 from the second opening through the second hole, the throttling element 5 is opened, the second heat exchanger absorbs heat, and the part of fluid enters the gas-liquid separation cavity through the third opening and then enters the inlet of the compressor through the sixth opening.

4. The second dehumidification mode: the dehumidification mode is the same as the refrigeration mode, and the temperature air door can be selectively opened to improve the temperature of the air flow and improve the comfort level.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various combinations, modifications and equivalents of the present invention can be made by those skilled in the art, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention are encompassed by the claims of the present invention.

Claims

1. A fluid management assembly comprising a flow regulating portion, a connector body and a tubular body, a first side portion of the connector body being in opposing contact with a side portion of the tubular body, at least a portion of the flow regulating portion extending into the connector body; the fluid management assembly further comprises a valve seat and a sliding body, the valve seat is welded and fixed with the inner wall of the pipe body, the sliding body can slide relative to the first wall of the valve seat, the fluid management assembly comprises a first cavity, a second cavity, a first valve cavity and a second valve cavity, the wall of the second valve cavity comprises the inner wall of the pipe body, the wall of the sliding body and the wall of the valve seat, the first valve cavity is arranged between the sliding body and the valve seat, the first valve cavity and the second valve cavity are not communicated relatively, and the first valve cavity and the second valve cavity change in position along with the sliding of the sliding body; the connecting body comprises a valve body, part of the flow regulating part extends into the valve body, the flow regulating part is fixedly connected with the valve body, the first cavity is communicated with the second cavity, and the walls of the first cavity and the second cavity comprise the inner wall of the valve body and part of the wall of the flow regulating part; the connecting body comprises a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are arranged on the wall of the connecting body, the first opening can be communicated with the first cavity and the second cavity, the second opening is communicated with the first cavity, the second opening and the second cavity can be communicated with the second valve cavity, and the third opening is communicated with the first valve cavity;

the flow rate adjusting part comprises a first valve core and a second valve core, the connecting body comprises a first path and a second path, the first path comprises a first cavity, a first valve port, a second valve port, a first valve cavity, a second cavity and a second valve cavity, the first valve core can open or close the first valve port, and the second valve core can adjust the opening size of the second valve port; the second path comprises a first communicating channel and a second communicating channel, the first communicating channel is communicated with the second communicating channel and the first valve cavity, and the first path is not communicated with the second path relatively.

2. The fluid management assembly of claim 1 wherein the connecting body comprises a first outer side portion disposed in contact with the tube body, the first outer side portion provided with a first communication port and a second communication port, the tube body provided with a third communication port in communication with the first communication port and the first valve chamber, a fourth communication port capable of communicating with a second valve chamber, the second communication port in communication with the fourth communication port;

the connecting body comprises a first connecting port, a first hole and the first communicating channel, the first communicating channel is communicated with the first communicating port and the first connecting port, and the first hole is communicated with the second communicating port and the second cavity; the first path further comprises the first communicating channel, and the second path further comprises the first hole.

3. The fluid management assembly of claim 1 or 2 wherein the connecting body further comprises a second aperture and a third aperture, the third aperture communicating with the first opening, the third aperture being capable of communicating with the first cavity and the second cavity, the second aperture communicating with the first cavity, the second opening;

the connecting body comprises the second communicating channel which is communicated with the first communicating channel and the third opening of the connecting body; the first path further comprises a second communicating channel, and the first path further comprises a second hole and a third hole.

4. The fluid management assembly of claim 1 or 2 wherein the connector comprises a first connector block, the valve body and the first connector block are fixedly disposed, the first connector block is fixedly welded to the pipe body, the valve body comprises a first connector side, the first connector block comprises a second connector side, the first connector side is adjacent to the second connector side, the fluid management assembly further comprises a first connector tube and a second connector tube, the first connector tube end is located within the valve body and/or the first connector block, and the second connector tube end is located within the valve body and/or the first connector block;

the first communicating channel and the first hole of the connecting body are arranged on the valve body, the first path also comprises a first channel, the first channel is arranged on the first connecting block, and the first channel is communicated with the first communicating channel of the connecting body through the inner cavity of the first connecting pipe; the second path comprises a second channel, the second channel is arranged on the first connecting block, and the second channel is communicated with the first hole through an inner cavity of the second connecting pipe.

5. The fluid management assembly of claim 3 wherein the connector comprises a first connector block, the valve body and the first connector block are fixedly disposed, the first connector block is fixedly welded to the tubular body, the valve body comprises a first connector side, the first connector block comprises a second connector side, the first connector side is adjacent to the second connector side, the fluid management assembly further comprises a first connector tube and a second connector tube, the first connector tube end is located within the valve body and/or the first connector block, and the second connector tube end is located within the valve body and/or the first connector block;

the first communicating channel and the first hole are arranged on the valve body, the first path further comprises a first channel, the first channel is arranged on the first connecting block, and the first channel is communicated with the first communicating channel through an inner cavity of the first connecting pipe; the second path comprises a second channel, the second channel is arranged on the first connecting block, and the second channel is communicated with the first hole through an inner cavity of the second connecting pipe.

6. The fluid management assembly of claim 4 wherein: the first connecting pipe and the first connecting block are arranged in a split mode, the first connecting pipe and the valve body are arranged in a split mode, at most part of the first connecting pipe is located between a first connecting side portion and a second connecting side portion, the first connecting side portion is provided with a first opening portion, the second connecting side portion is provided with a second opening portion, the first opening portion and the second opening portion are arranged oppositely, and the end portion of the first connecting pipe extends into the first opening portion and the second opening portion;

the first opening part is communicated with the first communicating channel, the aperture of the first communicating channel is smaller than or equal to the inner diameter of the first opening part, the second opening part is communicated with the first channel, and the aperture of the first channel is smaller than or equal to the inner diameter of the second opening part.

7. The fluid management assembly of claim 6 wherein: the fluid management assembly includes a seal; at least one of the first connecting block and the valve body is provided with a first platform part, the first platform part is positioned around the first opening part and/or the second opening part, the first connecting block and the valve body are provided with a second platform part, the second platform part is positioned around the first channel and the first communication channel, the second platform part of the first connecting block is far away from the valve body relative to the first platform part of the first connecting block, the second platform part of the valve body is far away from the first connecting block relative to the first platform part of the valve body, and the distance between the second platform part of the valve body and the second platform part of the first connecting block is larger than or equal to the length of the first connecting pipe;

the first connecting pipe comprises a first groove and a second groove, the first groove and the second groove are arranged in parallel, the first groove is located at the first opening part, the second groove is located at the second opening part, a sealing element is placed in the first groove, the sealing element in the first groove is abutted against the first opening part, the sealing element is placed in the second groove, and the sealing element in the second groove is abutted against the second opening part; the end of the first adapter tube abuts against at least one of the second platform sections; or the first adapter comprises a first flange abutting the first platform;

or the end of the first adapter tube abuts against at least one of the second platform sections, and the sealing element is located in the first platform section.

8. The fluid management assembly of claim 7 wherein:

the outer diameter of the first connecting pipe is smaller than the first opening part and equal to or larger than the second opening part, and the first connecting pipe is in interference fit with the valve body;

or the outer diameter of the first connecting pipe is smaller than the second opening part and equal to or larger than the first opening part, and the first connecting pipe is in interference fit with the first connecting block.

9. The fluid management assembly of claim 4 wherein: the first connecting pipe is integrally arranged with one of the first connecting block and the valve body, the first connecting pipe protrudes out of the first connecting side part or the second connecting side part, the other one of the first connecting block and the valve body is provided with a first opening part and a first platform part, and the first platform part is positioned around the first opening part;

the fluid management assembly further includes a seal located at the first platform, with a portion of the first connection side or a portion of the second connection side abutting the seal of the first platform.

10. The fluid management assembly of claim 9 wherein: a second flange is arranged at the root part of the first connecting pipe, the second flange is integrally arranged with the first connecting block, the second flange is arranged opposite to the first platform part, the valve body is provided with a first communicating channel and a second platform part, the second platform part is positioned around the second communicating channel, the first platform part is positioned around the first opening part, the second flange is abutted against the sealing element of the first platform part, and the inner diameter of the first communicating channel is smaller than that of the first opening part;

or the second flange is provided integrally with the valve body, the first connecting block is provided with a first passage and a second platform portion, the second platform portion is located around the first passage, the first platform portion is located around the first opening portion, the second flange abuts against a sealing member of the first platform portion, and the inner diameter of the first passage is smaller than the inner diameter of the first opening portion.

11. The fluid management assembly of any of claims 1 or 2 or 5-10 wherein: the fluid management assembly comprises a seal, a second nipple;

the second connecting pipe and the valve body are arranged in a split manner, and the second connecting pipe and the first connecting block are arranged in a split manner; the first connecting side part is provided with a third opening, the second connecting side part is provided with a fourth opening, the first hole of the connecting body is communicated with the third opening, the aperture of the first hole of the connecting body is smaller than or equal to the inner diameter of the third opening, the first channel of the first path is communicated with the fourth opening, and the aperture of the first channel of the first path is smaller than or equal to the inner diameter of the fourth opening; at least one of the valve body and the first connecting block is provided with a third platform part, the third platform part is positioned around the third opening part and/or the fourth opening part, the valve body and the first connecting block are provided with a fourth platform part, and the fourth platform part is positioned around the second channel and the third hole of the second channel; the sealing element is arranged on the third platform part, and the end part of the second connecting pipe is abutted against at least one fourth platform part; or the second connecting pipe comprises a third groove and a fourth groove which are arranged in parallel, the third groove is located in the third opening, the fourth groove is located in the fourth opening, a sealing element is placed in the third groove, the sealing element in the third groove is abutted against the third opening, the sealing element in the fourth groove is abutted against the fourth opening; the end part of the second connecting pipe is abutted against at least one fourth platform part; or the second nozzle further comprises a third flange abutting the third platform;

or the second connecting pipe is integrally arranged with one of the first connecting block and the valve body, the second connecting pipe protrudes from the first connecting side part or the second connecting side part, the other one of the first connecting block and the valve body is provided with a third opening part and a third platform part, the third platform part is positioned around the third opening part, and the sealing element is positioned on the third platform part; or the second adapter tube further comprises a fourth flange integrally provided with one of the first connecting block or the valve body, and the fourth flange abuts against the third platform.

12. The fluid management assembly of any of claims 1 or 2 or 5-10 wherein: the valve body comprises a first through hole, and the first connecting block comprises a first mounting hole matched with the first through hole in position; or the first connecting block comprises a first through hole, and the valve body comprises a first mounting hole matched with the first through hole in position; the fluid management assembly further comprises a first fastening member extending into the first through hole and the first mounting hole;

the first valve core is arranged in the first cavity, the first valve port and the second valve port are arranged in the connecting body, and the first valve port and the second valve port are communicated with the third hole of the connecting body;

the connecting body comprises a first connecting block, the first connecting block further comprises a third channel and a fourth opening, the third channel can be communicated with the second valve cavity, the third channel is communicated with the second opening, the fluid management assembly further comprises a second connecting block, the second connecting block comprises a fourth channel and a fifth opening, and the fourth channel is communicated with the fifth opening and the second valve cavity.

13. The fluid management assembly of claim 12 wherein: the fluid management assembly comprises at least the following operating states, a first operating mode: the sliding body is positioned at a first working position, the fourth channel is communicated with the third channel through the second valve cavity, the first channel of the first path is not communicated with the second channel of the second path, the first valve core opens the first valve port, the second valve core closes the second valve port, and the first opening is communicated with the fourth opening through the first hole of the connecting body, the first cavity and the second hole of the connecting body;

a second working mode: the sliding body is located at a second working position, the fourth channel is communicated with the second channel of the second path through the second valve cavity, the third channel is communicated with the first channel of the first path through the first valve cavity, the first valve core closes the first valve port, the second valve core opens the second valve port, and the first hole of the connecting body is communicated with the first opening through the second cavity, the second valve port and the third hole.

14. A thermal management system comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a throttling element, and the fluid management assembly of any of claims 1-12, the fluid management assembly comprising a first opening, a second opening, a third opening, a fourth opening, a fifth opening, and a first connection port;

the outlet of the compressor is communicated with the inlet pipeline of the first heat exchanger, the outlet of the first heat exchanger is communicated with the fifth opening pipeline, the fourth opening is communicated with the first port of the third heat exchanger, the second port of the third heat exchanger is communicated with the first opening pipeline, the second opening is communicated with the inlet of the second heat exchanger through the throttling element, the outlet of the second heat exchanger is communicated with the third opening pipeline, and the first connecting port of the fluid management assembly is communicated with the inlet pipeline of the compressor.

15. The thermal management system of claim 14, comprising a temperature damper positioned upwind of the first heat exchanger, the thermal management system comprising at least a heating mode and a cooling mode,

in a cooling mode, the temperature damper is closed, the fifth opening is communicated with the fourth opening, the first valve core opens the first valve port, the first opening is communicated with the second opening, and the throttling element is opened;

in a heating mode, the temperature damper is opened, the second spool regulates the size of the second valve port, the fifth opening communicates with the second channel, the second chamber and the first opening of the second path, the fourth opening communicates with the third chamber of the fluid management device, and the throttling element is closed;

in the first dehumidification mode, the temperature damper is opened, the second valve spool regulates the size of the second valve port, the fifth opening is communicated with the second channel and the second cavity of the second channel and the first opening and the second opening, the third opening and the fourth opening are communicated with the third cavity, and the throttling element is opened.