CN217495776U - Fluid management device and thermal management system - Google Patents

Abstract

An embodiment of the utility model provides a fluid management device and thermal management system, its first passageway and gas-liquid separation chamber intercommunication, the one-way portion makes first passageway one-way conduction second passageway, and the throttle passageway is at least partly of second passageway, compares and is located first passageway in the throttle passageway, has reduced the fluid flow path in fluid management device after the throttle relatively, can reduce heat exchange or the heat loss in the fluid management device relatively like this.

Description

Fluid management device and thermal management system

Technical Field

The utility model belongs to the technical field of the thermal management and specifically relates to a fluid management device and thermal management system are related to.

Background

At present, more and more parts are integrated together to form an integrated assembly, the integrated assembly comprises a flow passage and a valve cavity, and the flow passage and the valve cavity in the integrated assembly are flowed by fluid, so that how to reduce heat exchange in the integrated assembly to reduce heat loss is a technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluid management device is favorable to reducing the heat loss of fluid management device.

In one aspect, an embodiment of the present invention provides a fluid management device, the fluid management device includes: the valve comprises a shell, a first valve core, a one-way part and a throttling part, wherein the shell is provided with a first accommodating cavity and a gas-liquid separation cavity, the first valve core is positioned in the first accommodating cavity, the first valve core is provided with a throttling groove and/or a communicating hole, the first accommodating cavity can be communicated with the gas-liquid separation cavity through the throttling groove and/or the communicating hole, the shell comprises an accommodating part, the accommodating part is provided with a second accommodating cavity, the one-way part is positioned in the second accommodating cavity, the one-way part is fixedly connected or in limited connection with the accommodating part, the shell is provided with a first channel and a second channel, the first channel is provided with a first opening on the wall forming the gas-liquid separation cavity, the first channel is communicated with the gas-liquid separation cavity, and the one-way part is communicated to enable the first channel and the second channel to be communicated in one way; the throttle portion has a throttle passage that is at least a part of the second passage.

On the other hand, the embodiment of the present invention provides a thermal management system, a thermal management system compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger and the above fluid management device, wherein an outlet of the compressor can be communicated with an inlet of the fluid management device through the first heat exchanger, an outlet of the fluid management device is communicated with an inlet of the compressor, another outlet of the fluid management device can be communicated with another inlet of the compressor through the third heat exchanger, or another outlet of the fluid management device can be communicated with another inlet of the compressor through the third heat exchanger and a throttling element.

An embodiment of the utility model provides a fluid management device and thermal management system, its first passageway and gas-liquid separation chamber intercommunication, the one-way portion makes first passageway one-way conduction second passageway, and the throttle passageway is at least partly of second passageway, compares and is located first passageway in the throttle passageway, has reduced the fluid flow path in fluid management device after the throttle relatively, can reduce heat exchange or the heat loss in the fluid management device relatively like this.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a fluid management device according to a first embodiment of the present invention;

FIG. 2 is a schematic top view of the fluid management device of FIG. 1;

FIG. 3 is a schematic side view of the fluid management device of FIG. 1;

FIG. 4 is a schematic cross-sectional view A-A of the fluid management device of FIG. 3;

FIG. 5 is a schematic cross-sectional view B-B of the fluid management device of FIG. 3;

FIG. 6 is a schematic view of another angled configuration of the fluid management device of FIG. 1;

FIG. 7 is a schematic side view of the fluid management device of FIG. 6;

FIG. 8 is a schematic cross-sectional view C-C of the fluid management device of FIG. 7;

FIG. 9 is a schematic view of a first housing of the fluid management device of FIG. 1;

FIG. 10 is a schematic diagram of a second housing of the fluid management device of FIG. 1;

FIG. 11 is a schematic diagram of the one-way portion of the fluid management device of FIG. 1;

FIG. 12 is a schematic structural view of a fluid management device according to a second embodiment of the present invention;

fig. 13 is a schematic structural view of a fluid management device according to an embodiment of the present invention in a first mode;

fig. 14 is a schematic structural view of a fluid management device according to a second embodiment of the present invention in a second mode;

fig. 15 is a schematic structural diagram of a fluid management device according to a third mode of the present invention;

fig. 16 is a schematic structural view of a fluid management device according to a fourth mode of the present invention;

fig. 17 is a schematic block diagram of a thermal management system according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-17, an embodiment of the present invention provides a fluid management device 10, where the fluid management device 10 may be applied to a vehicle thermal management system 100 or an air conditioning system, where the vehicle thermal management system 100 includes a new energy vehicle thermal management system 100.

The fluid management device 10 includes a housing 11, a first valve element 12, a check portion 13, and a throttle portion 14, the housing 11 has a first accommodating chamber 1131 and a gas-liquid separation chamber 114, the first valve element 12 is located in the first accommodating chamber 1131, the first valve element 12 has a throttle groove 122 and/or a communication hole 121, the first accommodating chamber 1131 can communicate with the gas-liquid separation chamber 114 through the throttle groove 122 and/or the communication hole 121, the housing 11 includes an accommodating portion 113, the accommodating portion 113 has a second accommodating chamber 1132, the check portion 13 is located in the second accommodating chamber 1132, the check portion 13 is fixedly or limitedly connected to the accommodating portion 113, the housing 11 has a first passage 115 and a second passage 116, the first passage 115 has a first opening 1151 in a wall forming the gas-liquid separation chamber 114, the first passage 115 communicates with the gas-liquid separation chamber 114, and the check portion 13 unidirectionally communicates the first passage 115 with the second passage 116; the throttle portion 14 has a throttle passage, which is at least a part of the second passage 116. The first channel 115 and the second channel 116 may be used for circulation of a refrigerant, and the refrigerant may be a refrigerant.

The throttling portion 14 may be disposed in the second passage 116, the throttling portion 14 may throttle the refrigerant to perform a throttling and pressure reducing function, the first passage 115 is communicated with the gas-liquid separation chamber 114, the one-way portion 13 enables the first passage 115 to be in one-way communication with the second passage 116, the throttling passage is at least a part of the second passage 116, and compared with the throttling passage located in the first passage 115, a flow path of the throttled fluid in the fluid management device 10 is relatively reduced, so that heat exchange or heat loss in the fluid management device 10 can be relatively reduced.

Referring to fig. 1-11, the fluid management device 10 includes a housing 11, a restriction 14, a drive device 16, a transmission 17, a first spool 12, and a check portion 13.

As shown in fig. 9 and 10, the housing 11 has a first accommodating chamber 1131 and a gas-liquid separating chamber 114, the first valve core 12 is located in the first accommodating chamber 1131, the first valve core 12 is provided with a throttling groove 122, when the first valve core 12 rotates to a certain angle, the first accommodating chamber 1131 can communicate with the gas-liquid separating chamber 114 through the throttling groove 122, further, the housing 11 includes a first housing 111 and a second housing 112, the first housing 111 and the second housing 112 can be integrally structured, or the first housing 111 and the second housing 112 can be fixed in a sealing manner, the first housing 111 and the second housing 112 can be fixed in a sealing manner by welding or screwing, and the like, wherein the first valve core 12 and the throttling portion 14 can be located in the first housing 111, the second housing 112 can be provided with an accommodating portion 113, the accommodating portion 113 has a second accommodating chamber 1132, and the one-way portion 13 can be located in the second accommodating chamber 1132. The second casing 112 is also provided with a gas-liquid separation chamber 114.

As shown in fig. 1 and 6, the housing 11 has a first interface part 1112, a second interface part 1122, and a third interface part 1124, the first interface part 1112 is located in the first housing 111, the first interface part 1112 has the first interface part 1112, the first interface part 1112 can communicate with the second channel 116, the second interface part 1122 has the second connection port 1122, the second connection port 1122 can communicate with the gas-liquid separation chamber 114, the third interface part 1124 has the third connection port 1124, and the third connection port 1124 can communicate with the fifth channel 119. The first connection port 1112 and the second connection port 1122 are both located on the same side of the housing 11, the first connection port 1112 and the second connection port 1122 may be outlets of the fluid management device 10, and the third connection port 1124 may be an inlet of the fluid management device 10.

As shown in fig. 4 and 5, further, the housing 11 further includes a first channel 115, a second channel 116, a third channel 117, a fourth channel 118, and a fifth channel 119. First passageway 115 is close to the one end of gas-liquid separation chamber 114 and has first opening 1151, first opening 1151 forms the inner wall at first passageway 115, and gas-liquid separation chamber 114 communicates through first opening 1151 with first passageway 115, the one end that gas-liquid separation chamber 114 was kept away from to first passageway 115 can hold the chamber 1132 intercommunication with the second, unidirectional portion 13 can be located the second and hold the chamber 1132, unidirectional portion 13 can realize the one-way conduction to the refrigerant in the first passageway 115, thereby prevent the refrigerant refluence in the second passageway 116.

One end of the second passage 116 communicates with the first passage 115, and the other end of the second passage 116 communicates with the first connection port 1112. Wherein, the second passageway 116 includes first intercommunication pore 1161 and second intercommunication pore 1162, and first intercommunication pore 1161 communicates with second intercommunication pore 1162, in an embodiment of the utility model, throttle portion 14 can be the orifice, and first intercommunication pore 1161 or at least partial second intercommunication pore 1162 have first through-hole 1521, and the diameter of first through-hole 1521 is less than the diameter of first intercommunication pore 1161 and second intercommunication pore 1162 far away. It can be understood that, by setting the diameter of the through hole 1521 within the above range, the flow rate of the refrigerant in the channel may be further reduced, so as to achieve the effect of throttling and depressurizing the refrigerant in the second channel 116, wherein the throttling portion 14 may be formed as the first through hole 1521. Similarly, a second through hole 1521 is arranged at a communication position of the first communication hole 1161 and the second communication hole 1162, the diameter of the second through hole 1521 is far smaller than the diameters of the first communication hole 1161 and the second communication hole 1162, one end of the second through hole 1521 is communicated with the first communication hole 1161, the other end of the second through hole 1521 is communicated with the second communication hole 1162, the throttling portion 14 can be formed into the second through hole 1521, and the throttling portion 14 can throttle and depressurize the refrigerant in the first communication hole 1161. As shown in fig. 5, in one embodiment of the present invention, the throttle portion 14 is shaped as a second through hole 1521.

The utility model discloses in other embodiments, throttle portion 14 can be devices such as electronic expansion valve, casing 11 has the third and holds the chamber, throttle portion 14 can be located the third and hold the intracavity, wherein, throttle portion 14 can include the case subassembly, automatically controlled portion and stator module, the case subassembly can include the disk seat, second valve core and rotor 1622 subassembly, the disk seat is for the fixed setting of casing 11, the disk seat is formed with the valve port, the second valve core can be for the valve port motion and change the aperture of valve port, automatically controlled portion can be through the motion of controlling stator module and rotor 1622 subassembly and then control valve core, the effect of throttle is reached in the motion through adjusting the case, throttle portion 14 can be through the joint, connected modes such as welding and casing 11 fixed connection.

In some embodiments of the utility model, the third holds the chamber and can holds chamber 1132 with the second and close on the setting to in installation or processing of one-way portion 13 and throttle portion 14 the utility model discloses an in other embodiments, throttle portion 14 can set up in the second holds chamber 1132, one side of throttle portion 14 can communicate with one-way portion 13, the opposite side and the second passageway 116 intercommunication of throttle portion 14, further, throttle portion 14 can with one-way portion 13 body structure, the refrigerant can flow throttle after flowing through one-way portion 13 and step down. In other embodiments of the present invention, the throttling portion 14 may be fixedly connected to the one-way portion 13, and the outlet end of the one-way portion 13 is connected to the inlet end of the throttling portion 14.

As shown in fig. 4, the driving device 16 includes an outer casing 161, a motor assembly 162, and a valve rod 163, the motor assembly 162 is drivingly connected to the transmission 17, an end of the valve rod 163 facing the driving device 16 is drivingly connected to the transmission 17, and an end of the valve rod 163 facing away from the driving device 16 is drivingly connected to the first valve core 12. The transmission 17 comprises a plurality of toothed transmission members, although in other embodiments of the invention the transmission 17 may also be other gear reduction units.

As shown in fig. 4, the drive device 16 includes an outer housing 161 and the transmission 17 is positioned within a chamber defined by the outer housing 161 to facilitate reducing the axial height of the fluid management device 10.

The motor assembly 162 is located in a cavity defined by the outer shell 161, the motor assembly 162 includes a coil winding 1621, a rotor 1622 and a motor shaft 1623, for example, when the outer shell 161 is formed, the coil winding 1621 may be used as an injection molding insert to integrally form the outer shell 161 by injection molding, the coil winding 1621 is located on the outer peripheral side of the rotor 1622, and the rotor 1622 is fixedly connected with the motor shaft 1623. The driving device 16 further includes an interface terminal, which may be integrally injection molded or assembled with the outer housing 161, and the driving device 16 is electrically connected and/or signal-connected with the outside through the interface terminal, so as to control the operation of the fluid management device 10.

As shown in fig. 4 and 5, in some embodiments of the present invention, the third channel 117 can be communicated with the fifth channel 119 or the fourth channel 118 can be communicated with the fifth channel 119 by rotating around the axis of the motor shaft 1623, at this time, the fifth channel 119 can be used as an input channel, and the third channel 117 and the fourth channel 118 can be used as output channels, so as to implement the function of "one in and two out" of the flow control device.

As shown in fig. 4, 5 and 8, the first valve core 12 has a communication hole 121, the cross section of the communication hole 121 of the first valve core 12 is L-shaped, the communication hole 121 may communicate with the second communication hole 1162 through the third channel 117, the inner wall of the second communication hole 1162 has a second opening, and the third channel 117 communicates with the second communication hole 1162 through the second opening, wherein, in the extending direction of the second communication hole 1162, the second opening is located between the throttling portion 14 and the first connection port 1112, so as to ensure that when the refrigerant does not need to be throttled, the refrigerant may flow to the third channel 117 through the communication hole 121, then flow to the second communication hole 1162 through the third channel 117, and then flow out from the first connection port 1112, and at this time, the refrigerant does not pass through the throttling portion 14. But not limited thereto, the first spool 12 may be provided with only the communication hole 121 and pass through the throttle portion 14 to perform the throttling and depressurizing functions.

The first spool 12 can communicate one of the third passage 117 and the fourth passage 118 with the fifth passage 119, and further, the third passage 117 and the fourth passage 118 are respectively provided on both sides of the first spool 12 in the radial direction of the first spool 12, and by rotating the first spool 12, the third passage 117 can be made to communicate with the fifth passage 119, or the fourth passage 118 can be made to communicate with the fifth passage 119.

As shown in fig. 11, the check portion 13 has a third spool 131 and an elastic member 1314, the third spool 131 includes a first end portion 1311, a second end portion 1312, and a spool rod 1313, the first end portion 1311, the second end portion 1312 is integrally provided with the spool rod 1313 or fixed by welding, the first end portion 1311 faces the first passage 115, and the second end portion 1312 faces the second passage 116. The one-way portion 13 further has a valve supporting seat 132, and the one-way valve component is provided with an elastic element 1314 for facilitating the resetting of the second valve core, and in the embodiment, the elastic element 1314 is a spring. When the fluid management device 10 is in operation, when the pressure of the refrigerant in the first passage 115 is lower than the pressure of the refrigerant in the second passage 116, the second valve spool is located at the first position, and the first passage 115 is not communicated with the second passage 116; when the pressure of the refrigerant in the first channel 115 is greater than the pressure of the refrigerant in the second channel 116, the second valve spool is located at the second position, the first end 1311 moves toward the valve supporting seat 132, the first end 1311 compresses the elastic element 1314, and the first channel 115 is in one-way communication with the second channel 116.

As shown in fig. 5, the fluid management apparatus 10 further includes a fourth interface 151, a conduction pipe 152, a blocking portion 153, and a liquid inlet pipe 154, where the conduction pipe 152 is fixedly connected to the fourth interface 151, in this embodiment, the conduction pipe 152 is fixed to the fourth interface 151 in an interference fit manner, as another embodiment, the conduction pipe 152 and the fourth interface 151 may also be fixed by welding, gluing, or screwing, or the conduction pipe 152 and the fourth interface 151 may also be integrally formed; the fourth interface 151 is fixedly connected to the second housing 11, and in the present embodiment, the fourth interface 151 is fixed to the second housing 11 by a screw.

The conduction pipe 152 includes a through hole 1521, the fourth connecting portion 151 includes an exhaust pipe 1511 having an opening facing the blocking portion, and the through hole 1521 communicates the liquid inlet pipe 154 with the exhaust pipe 1511, so that the liquid inlet pipe 154 can communicate with the outside through the through hole 1521 and the exhaust pipe 1511. The opening of the first channel 115 on the wall of the gas-liquid separation chamber and the opening of the exhaust pipe facing the blocking part are located on two sides of the blocking part, so that the liquid after gas-liquid separation can flow to the first channel 115, and the gas can flow out from the exhaust pipe. The liquid inlet pipe 154 is communicated with the fifth channel 119, the liquid outlet pipe is communicated with the second channel 116, the housing 11 further comprises a second outlet, and the exhaust pipe 1511 is communicated with the second outlet.

As shown in fig. 6 to 8, the fluid management device 10 includes a first outlet and a second outlet, wherein the first outlet may be located on the surface of the first housing 11, and the first outlet is communicated with the first channel 115, and the first outlet may be an inlet of the fluid management device 10; the second outlet is communicated with the liquid inlet pipe 154, so that the gas separated from the refrigerant after passing through the gas-liquid separation chamber 114 can be discharged from the second outlet 19.

The throttle mode of the fluid control device according to the above embodiment will be described with reference to fig. 13 to 16.

As shown in fig. 13, which is the first mode of the fluid control device of the present embodiment, the throttle grooves 122 include a first throttle groove 1221 and a second throttle groove 1222, and in the state where the fluid management device 10 is closed, by rotating the first valve spool 12 in the counterclockwise direction, the communication hole 121 of the first valve spool 12 can be made to communicate with the second passage 116 through the third passage 117, and at this time, the fourth passage 118 and the fifth passage 119 are not communicated. Specifically, in the present embodiment, the refrigerant flows from the communication hole 121 to the second channel 116, and due to the reverse blocking function of the check portion 13, the refrigerant in the second channel 116 cannot flow to the first channel 115 through the check portion 13, and the refrigerant in the second channel 116 flows out from the first connection port 1112 to the subsequent circuit.

As shown in fig. 14, in the second mode of the fluid control device of the present embodiment, the first valve element 12 is rotated clockwise, so that the second throttling groove 1222 is communicated with the fourth passage 118, at this time, the second passage 116 is not communicated with the fifth passage 119, and the communication hole 121 is not communicated with the second passage 116, specifically, in the present embodiment, the refrigerant in the first accommodating chamber 1131 is communicated with the fourth passage 118 through the second throttling groove 1222, at this time, the refrigerant in the first accommodating chamber 1131 can be throttled and expanded through the second throttling groove 1222, and the throttled and expanded refrigerant continues to be expanded at the throttling portion 14 after flowing through the gas-liquid separation chamber 114 and the check portion 13, and flows out from the second passage 116 to the first connection port 1112, and flows to the subsequent circuit.

As shown in fig. 15, in the third mode of the fluid control device of the present embodiment, the first valve element 12 is continuously rotated clockwise, so that the first throttling groove 1221 is communicated with the second passage 116, at this time, the fourth passage 118 is not communicated with the fifth passage 119, and the communication hole 121 is not communicated with the fourth passage 118, specifically, in the present embodiment, the refrigerant in the first accommodating chamber 1131 is communicated with the second passage 116 through the first throttling groove 1221, the refrigerant in the first accommodating chamber 1131 can be throttled and expanded through the first throttling groove 1221, the throttled and expanded refrigerant flows to the second passage 116, and due to the reverse blocking function of the check portion 13, the refrigerant in the second passage 116 cannot flow to the first passage 115 through the check portion 13, and the refrigerant in the second passage 116 flows out from the first connection port 1112 and flows to the subsequent circuit.

Referring to fig. 16, the fourth mode of the fluid control device of this embodiment is shown, and the fluid control device is in the closed state by continuing to rotate the first valve spool 12 clockwise to the position of the first valve spool 12 in fig. 15, at which time the second passage 116 is not communicated with the fifth passage 119, and the fourth passage 118 is not communicated with the fifth passage 119.

It should be noted that the clockwise direction and the counterclockwise direction are only limited by the example shown in fig. 13, and are not limited to the clockwise direction and the counterclockwise direction.

In another aspect, the present invention further provides a thermal management system 100, which includes a compressor 200, a first heat exchanger 310, a second heat exchanger 320, a third heat exchanger 330, and the fluid management device 10 of any of the above embodiments, where the compressor 200 includes at least two ports, further, an outlet of the compressor 200 can be communicated with an inlet of the fluid management device 10 through the first heat exchanger 310, one inlet of the fluid management device 10 can be a third connection port 1124, and an outlet of the compressor 200 can be the first port 210. An outlet of the fluid management device 10 may be in communication with an inlet of the compressor 200, an outlet of the fluid management device 10 may be the second connection port 1122, and an inlet of the compressor 200 may be the third port 230. Another outlet of the fluid management device 10 can be in communication with another inlet of the compressor 200 through the third heat exchanger 330, or another outlet of the fluid management device 10 can be in communication with another inlet of the compressor 200 through the third heat exchanger 330, the throttling element 400. Wherein, the other outlet of the fluid management device 10 may be the first connection port 1112, and the other inlet of the compressor 200 may be the second connection port 220.

The thermal management system 100 may further include a fluid assembly, which may be one or a combination of heat exchangers, throttling elements such as throttle valves, valve-like elements such as shut-off valves, gas-liquid separators 500, and components for circulating fluids such as pumps. The thermal management system 100 of the embodiment of the present invention has the same beneficial effects as the fluid management device 10 of any of the above embodiments, and is not repeated.

Further, when the fluid management device 10 has three flow channels and has the four modes, the operation of the compressor 200 can be ensured, the situation that the compressor 200 is damaged or the normal operation of the compressor 200 is affected due to the excessive pressure in the thermal management system 100 can be prevented, and the working stability of the thermal management system 100 can be improved.

Illustratively, the vehicle thermal management system 100 is taken as an example, and the fluid in the thermal management system 100 is generally a refrigerant.

As shown in fig. 17, the thermal management system 100 includes a compressor 200, a fluid management device 10, a first heat exchanger 310, and a second heat exchanger 320, the compressor 200 including a first port 210, a second port 220, and a third port 230, the first port 210 being an outlet of the compressor 200, the second port 220 being a low pressure inlet, and the third port 230 being a relatively high pressure inlet. The first heat exchanger 310 can communicate with the first port 210 of the compressor 200, and the high-temperature and high-pressure refrigerant releases heat in the first heat exchanger 310 to heat the gas flowing through the first heat exchanger 310, thereby increasing the temperature of the gas flow.

In some embodiments, the thermal management system 100 may further include a third heat exchanger 330, a throttling unit 400 is further disposed upstream of a refrigerant inlet of the third heat exchanger 330, the refrigerant is throttled by the throttling unit 400, and then absorbs heat of an air flow passing through the third heat exchanger 330 in the third heat exchanger 330, so as to reduce a temperature of the air flow, the first heat exchanger 310 and the third heat exchanger 330 are disposed in an air duct of an air conditioning box of the vehicle, and the first heat exchanger 310 may be disposed downwind of the third heat exchanger 330.

In the embodiment, the refrigerant outlet of the first heat exchanger 310 communicates with the third connection port 1124 of the fluid management device 10, the third port 230 of the compressor 200 communicates with the second connection port 1122 of the fluid management device 10, the first port of the second heat exchanger 320 communicates with the first connection port 1112 of the fluid management device 10, and the second port of the second heat exchanger 320 can communicate with the second port 220 of the compressor 200 or communicate with the second port 220 of the compressor 200 via the gas-liquid separator 500.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A fluid management device, comprising: a housing (11), a first valve core (12), a one-way part (13) and a throttling part (14), wherein the housing (11) is provided with a first accommodating cavity (1131), a gas-liquid separating cavity (114), the first valve core (12) is positioned in the first accommodating cavity (1131), the first valve core (12) is provided with a throttling groove (122) and/or a communication hole (121), the first accommodating cavity (1131) can be communicated with the gas-liquid separating cavity (114) through the throttling groove (122) and/or the communication hole (121), the housing (11) comprises an accommodating part (113), the accommodating part (113) is provided with a second accommodating cavity (1132), the one-way part (13) is positioned in the second accommodating cavity (1132), the one-way part (13) is fixedly connected or in a limiting way with the accommodating part (113), and the housing (11) is provided with a first channel (115) and a second channel (116), the first passage (115) has a first opening (1151) in a wall forming the gas-liquid separation chamber (114), the first passage (115) communicates with the gas-liquid separation chamber (114), and the one-way portion (13) makes the first passage (115) communicate with the second passage (116) in one way; the throttle section (14) has a throttle passage that is at least a part of the second passage (116).

2. The fluid management device of claim 1 wherein the housing (11) has a first interface portion (1111) and a second interface portion (1121), the first interface portion (1111) having a first interface (1112), the first interface (1112) being in communication with the second channel (116); the second connection port (1121) has a second connection port (1122), the second connection port (1122) communicates with the gas-liquid separation chamber (114), and the first connection port (1112) and the second connection port (1122) are both located on the same side of the casing (11).

3. The fluid management device according to claim 2, wherein the second passage (116) comprises a first communicating hole (1161) and a second communicating hole (1162), the first communicating hole (1161) communicating with the second communicating hole (1162), wherein the first communicating hole (1161) or at least part of the second communicating hole (1162) has a first through hole, the throttle portion (14) being shaped as the first through hole; or, the first communicating hole passage (1161) and the second communicating hole passage (1162) communicate through a second through hole, the throttle portion (14) being shaped as the second through hole.

4. A fluid management device according to claim 3, wherein the first spool (12) has a communication hole (121), the housing (11) has a third passage (117), the communication hole (121) is communicable with the third passage (117), the third passage (117) has a second opening in an inner wall of the second communication hole 1162, the second opening is communicated with the second communication hole 1162; wherein the second opening is located between the throttle portion (14) and the first connection port (1112) in an extending direction of the second communication hole 1162.

5. The fluid management device according to claim 2, wherein the housing (11) has a third accommodating cavity, the third accommodating cavity is located in at least part of the second passage (116), the throttle portion (14) is located in the third accommodating cavity, the throttle portion (14) comprises a spool assembly, an electric control portion (142) and a stator assembly, the spool assembly comprises a second spool (141) and a rotor assembly, the throttle portion (14) is formed with a valve port (143), the second spool (141) is movable relative to the valve port (143) and changes the opening degree of the valve port (143), and the electric control portion (142) is capable of controlling the stator assembly and the rotor assembly to drive the second spool (141) to move.

6. The fluid management device according to any of claims 2-5, wherein the second receiving chamber (1132) is located between the first channel (115) and the second channel (116), the check portion (13) has a third spool (131) and a resilient element (1314), the third spool (131) includes a first end portion (1311), a second end portion (1312), and a spool rod (1313), the first end portion (1311), the second end portion (1312) is integrally disposed or welded to the spool rod (1313), the first end portion (1311) faces the first channel (115), the second end portion (1312) faces the second channel (116), and the resilient element (1314) is fixedly connected to the first end portion (1311) and the second end portion (1312), respectively.

7. The fluid management device according to claim 6, wherein the housing (11) includes a first housing (111) and a second housing (112), the first housing (111) having the communication hole (121), the second housing (112) having the gas-liquid separation chamber (114); wherein the first shell (111) and the second shell (112) are of an integral structure, or the first shell (111) and the second shell (112) are fixed in a sealing way; the first spool (12) and the throttle portion (14) are located in the first housing (111), and the check portion (13) is located in the second housing (112).

8. The fluid management device according to claim 7, wherein the housing (11) includes a fourth passage (118), a fifth passage (119), the communication hole (121) is communicable with the gas-liquid separation chamber (114) through the fourth passage (118), the housing (11) has a third passage (117), the spool is communicable with one of the third passage (117) and the fourth passage (118) and the fifth passage (119), the second housing (112) has a third port portion (1123), the third port portion (1123) has a third connection port (1124), and the third connection port (1124) is communicable with the fifth passage (119).

9. The fluid management device according to claim 8, wherein the fluid management device comprises a stopper (153) and an exhaust pipe (1511), the stopper (153) and the exhaust pipe (1511) are located in the gas-liquid separation chamber, the exhaust pipe (1511) has an opening facing the stopper (153), the first channel (115) has an opening in a wall of the gas-liquid separation chamber (114), and the exhaust pipe has an opening facing the stopper (153) on both sides of the stopper (153).

10. A thermal management system comprising a compressor (200), a first heat exchanger (310), a second heat exchanger (320), a third heat exchanger (330) and a fluid management device according to any one of claims 1 to 9, the outlet of the compressor (200) being capable of communicating with one inlet of the fluid management device through the first heat exchanger (310), one outlet of the fluid management device being capable of communicating with one inlet of the compressor (200), another outlet of the fluid management device being capable of communicating with another inlet of the compressor (200) through the third heat exchanger (330), or another outlet of the fluid management device being capable of communicating with another inlet of the compressor (200) through the third heat exchanger (330), a throttling element (400).

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