CN215763449U - Fluid control assembly - Google Patents

Abstract

The utility model provides a fluid control assembly, including the connecting block, valve member and end cap, fluid control assembly still has first passageway and flange portion, at least partial first passageway is located the connecting block, at least partial end cap is located first passageway, end cap and connecting block fixed connection or spacing connection, the valve member is located first passageway, the valve member includes the disk seat, axial along first passageway, the disk seat is located between flange portion and the end cap, a terminal surface and the flange portion butt of disk seat, another terminal surface and the end cap butt of disk seat, it is spacing to the disk seat butt through end cap and flange portion, reduced the original jump ring part spacing to the disk seat among the correlation technique, be favorable to valve member simple structure, be favorable to the simple to operate of valve member simultaneously.

Description

Fluid control assembly

Technical Field

The application relates to the technical field of fluid control, in particular to a fluid control assembly.

Background

The integration of a valve member (e.g., a check valve) into a fluid control assembly of the related art is a technical problem to be improved, how to make the valve member simple in structure and easy to install.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to provide a fluid control assembly incorporating a valve member that facilitates a simple valve member construction and easy installation.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a fluid control assembly, includes connecting block, valve member and end cap, its characterized in that: the fluid control assembly is provided with a channel, the channel comprises a first channel, at least part of the first channel is located in the connecting block, the fluid control assembly further comprises a flange portion, the flange portion is a portion of a wall forming the first channel, at least part of the plug is located in the first channel, the plug is fixedly connected or limited connected with the connecting block, the valve member is located in the first channel, the valve member comprises a valve seat, the valve seat is located between the flange portion and the plug along the axial direction of the first channel, one end face of the valve seat is abutted to the flange portion, and the other end face of the valve seat is abutted to the plug.

The application provides a fluid control assembly, including the connecting block, valve member and end cap, fluid control assembly still has first passageway and flange portion, at least partial first passageway is located the connecting block, at least partial end cap is located first passageway, end cap and connecting block fixed connection or spacing connection, the valve member is located first passageway, the valve member includes the disk seat, axial along first passageway, the disk seat is located between flange portion and the end cap, a terminal surface and flange portion butt of disk seat, another terminal surface and end cap butt of disk seat, it is spacing to the disk seat butt through end cap and flange portion, the jump ring part to the disk seat spacing originally among the correlation technique has been reduced, be favorable to valve member simple structure, be favorable to the simple to operate of valve member simultaneously.

Drawings

FIG. 1 is a schematic diagram of an exploded configuration of an embodiment of a fluid control assembly;

FIG. 2 is a schematic view showing the communicating structure between the internal channel and the mounting chamber of the connector block of FIG. 1;

FIG. 3 is a cross-sectional structural view of the first valve element of FIG. 1;

FIG. 4 is a cross-sectional structural schematic view of the second valve component of FIG. 1;

FIG. 5 is a schematic view of a partial cross-sectional configuration of the fluid control assembly of FIG. 1;

FIG. 6 is a system diagram of a first mode of operation of an embodiment of a thermal management system with a fluid control assembly;

FIG. 7 is a system diagram of a second mode of operation of the thermal management system of FIG. 6;

FIG. 8 is a system diagram of a third mode of operation of the thermal management system of FIG. 6.

Detailed Description

The present application is further described with reference to the following figures and specific examples:

referring to fig. 1, the fluid control assembly 100 may be applied to a thermal management system, which may be a vehicle thermal management system, such as a new energy vehicle thermal management system. The fluid control assembly 100 includes a connection block 1, a heat exchange element 2, and a valve element, and the number of the valve elements may be plural. In the embodiment, the valve elements comprise a first valve element 31 and a second valve element 32, the connecting block 1 is provided with a first mounting cavity 101 and a second mounting cavity 102, at least part of the first valve element 31 is positioned in the first mounting cavity 101, the first valve element 31 is fixedly connected or in a limiting manner with the connecting block 1, at least part of the second valve element 32 is positioned in the second mounting cavity 102, and the second valve element 32 is fixedly connected or in a limiting manner with the connecting block 1, furthermore, a sealing arrangement can be arranged between the first valve element 31 and/or the second valve element 32 and the connecting block 1, which is beneficial to reducing or preventing the working fluid from leaking out of the assembly gap between the valve elements and the connecting block 1. The heat exchange element 2 is fixedly connected or limited with the connecting block 1, in the embodiment, the heat exchange element 2 comprises a connecting plate 21, and the heat exchange element 2 is fixed with the connecting block 1 through the connecting plate 21 by screws. The heat exchange element 2 may involve heat exchange between two working fluids (such as refrigerant and cooling liquid), and specifically, the heat exchange element 2 has a first flow passage and a second flow passage which are not communicated, and the working medium (such as refrigerant) in the first flow passage and the working fluid (such as cooling liquid) in the second flow passage may exchange heat.

Referring to fig. 1 and 2, the connecting block 1 has a plurality of channels, the number of the channels may be multiple, the channels include a fourth channel 11, a fifth channel 12, a third channel 13, a sixth channel 14 and a seventh channel 15, the first valve element 31 can communicate and do not communicate with the fourth channel 11 and the fifth channel 12, further, when the first valve element 31 communicates with the fourth channel 11 and the fifth channel 12, the first valve element 31 includes two working positions, when the first valve element 31 is located at the first working position, the first valve element 31 throttles to communicate the fourth channel 11 and the fifth channel 12, and the throttling communication is defined as changing the pressure of the working fluid flowing from the fourth channel 11 to the fifth channel 12 or flowing from the fifth channel 12 to the fourth channel 11; when the first valve element 31 is in the second operating position, the first valve element 31 communicates through the fourth passage 11 and the fifth passage 12, defining the through communication as the pressure of the working fluid flowing from the fourth passage 11 to the fifth passage 12 or from the fifth passage 12 to the fourth passage 11, which is unchanged or tends to be unchanged (e.g. pressure loss range < 1%). The second valve element 32 is capable of communicating and not communicating the third passage 13 and the sixth passage 14, and further, when the second valve element 32 communicates the third passage 13 and the sixth passage 14, the second valve element 32 throttles the communication of the third passage 13 and the sixth passage 14. The heat exchange element 2 comprises a plurality of stacked plates, the sixth channel 14 and the seventh channel 15 respectively have ports on the connecting block 1 facing the heat exchange element 2 in the stacking direction of the plates, the first flow channel of the heat exchange element 2 is communicated with the sixth channel 14 and the seventh channel 15 respectively through the ports, and the second flow channel of the heat exchange element 2 can be communicated with channels of other components in the thermal management system, such as channels in a battery cooling component.

Referring to fig. 1 to 4, in the present embodiment, the first valve element 31 has a first valve spool 311 and a third valve port 312, the first valve spool 311 can be close to or far from the third valve port 312 so as to form throttling or through-flow at the third valve port, the fourth passage 11 can be in throttling or through-flow communication with the fifth passage 12 through the third valve port 312, correspondingly, the second valve element 32 has a second valve spool 321 and a second valve port 322, the second valve spool 321 can also be close to or far from the second valve port 322 so as to form throttling at the second valve port 322, and the third passage 13 can be in throttling communication with the sixth passage 14 through the second valve port 322. A first plane is defined, which is parallel to or coincides with the central axis of the third valve port 312, in this embodiment, the first plane is a central cross section coinciding with the central axis of the third valve port 312, the width of the projection of the third valve port 312 on the first plane is defined as W1, and a second plane is defined, which is parallel to or coincides with the central axis of the second valve port 322, in this embodiment, the second plane is a central cross section coinciding with the central axis of the second valve port 322, and the width of the projection of the second valve port 322 on the second plane is defined as W2, and both satisfy the following relationship: 4W2 is not less than W1 is not less than 7W 2. Of course, as other embodiments, one or more of the fourth channel 11, the fifth channel 12, the third channel 13, the sixth channel 14, and the seventh channel 15 may also be partially located in the connection block 1, for example, the connection block 1 has a groove or a hole forming the fourth channel 11, and the groove or the hole located in the fourth channel 11 of the connection block 1 and the groove or the hole of the fourth channel 11 formed by other components of the fluid control assembly 100 combine to form the complete fourth channel 11; in another embodiment, the first valve element 31 may be a ball valve with a throttle groove, a column valve, or the like.

Referring to fig. 1 and 2, the fluid control assembly 100 further includes a third valve element 33 and a fourth valve element 34, the passages further include a second passage 16 and a first passage 17, the second passage 16 is communicated with the first passage 17, the first passage 17 is communicated with the third passage 13, the connecting block 1 further has a third mounting cavity 103 and a fourth mounting cavity 104, at least a portion of the third valve element 33 is located in the third mounting cavity 103, the third valve element 33 is fixedly connected or in a limiting connection with the connecting block 1, the third valve element 33 can be communicated with and not communicated with the fourth passage 11 and the third passage 13, and further, when communicated, the third valve element 33 can be communicated with the fourth passage 11 and the third passage 13 in a direct way. At least a portion of the fourth valve element 34 is located in the fourth mounting chamber 104, the fourth valve element 34 is fixedly or limitedly connected to the connecting block 1, the fourth valve element 34 can communicate and not communicate with the second passage 16 and the seventh passage 15, and further, when communicating, the fourth valve element 34 can communicate with the second passage 16 and the seventh passage 15. A sealing arrangement may also be provided between the third valve element 33 and/or the fourth valve element 34 and the connection block 1, which facilitates preventing leakage of the working fluid from the fitting clearance between the third valve element 33 and/or the fourth valve element 34 and the connection block 1. Of course, as other embodiments, the second channel 16 and/or the first channel 17 may also be partially located in the connection block 1, that is, the connection block 1 has a groove or hole forming the second channel 16 and/or the first channel 17, and the groove or hole located in the second channel 16 and/or the first channel 17 of the connection block 1 forms the complete second channel 16 and/or the complete first channel 17 in combination with the groove or hole of the second channel 16 and/or the first channel 17 formed by other components of the fluid control assembly 100.

Referring to fig. 1, 2 and 5, the fluid control assembly 100 further includes a valve member 35 and a plug 36, at least a portion of the plug 36 is located in the first channel 17, and the plug 36 is fixedly connected or limited connected to the connecting block 1, in this embodiment, the plug 36 is fixedly connected to the connecting block 1 by a screw thread. Further, a sealing arrangement can be further provided between the plug 36 and the connecting block 1, which is beneficial to preventing the working fluid from leaking outwards, and the plug 36 is used for plugging the processing opening of the first channel 17. In the present embodiment, the valve member 35 is a check valve, but as another embodiment, the valve member 35 may be another type of valve. The valve member 35 is located in the first channel 17, the valve member 35 has functions of forward opening and reverse closing under the action of fluid pressure difference, at least a part of the valve member 35 is arranged closer to the third channel 13 than the communication port 161 of the second channel 16 communicating with the first channel 17 is arranged along the axial direction of the first channel 17, and specifically, the first valve port of the valve member 35 is arranged closer to the third channel 13 than the communication port 161 is. Thus, the working fluid can enter the first passage 17 from the second passage 16 through the communication port 161, and can be positively communicated with the third passage 13 by the valve member 35, and flow into the third passage 13. The valve member 35 includes a valve seat 351 and a valve element 352, the valve seat 351 being located at least partially on the outer periphery of the valve element 352, the fluid control assembly further includes a flange portion 105, at least a portion of the flange portion 105 being located in the connecting block 1, the flange portion 105 being a portion of a wall forming the first passage 17. Along the axial direction of first passageway 17, valve seat 351 is located between flange portion 105 and end cap 36, and one end face of valve seat 351 and flange portion 105 butt, and the other end face of valve seat 351 and end cap 36 butt, and valve seat 351 is spacing through flange portion 105 and end cap 36 butt respectively, and it should be pointed out: the abutment referred to herein is understood to include direct abutment or indirect abutment, for example, when a gasket is further provided between the end surface of the valve seat 351 and the plug 36, that is, when the abutment between the end surface of the valve seat 351 and the plug 36 is indirect abutment. Further, a sealing arrangement can be arranged between the valve seat 351 and the connecting block 1, which is beneficial to preventing fluid from leaking from the assembly gap between the valve seat 351 and the connecting block 1. The valve seat 351 forms a first valve port, the valve element 352 can be close to or far from the first valve port under the action of fluid pressure differential force, and further the first valve port is opened in a forward direction or closed in a reverse direction, so that forward conduction of the working fluid from the second channel 16 to the third channel 13 is realized, and reverse conduction of the working fluid from the third channel 13 to the second channel 16 is realized, specifically, the valve element 352 comprises a positive pressure surface 353 and a back pressure surface 354, the positive pressure surface 353 is arranged closer to the communication port 161 than the back pressure surface 354 along the axial direction of the first channel 17, when the pressure acting on the positive pressure surface 353 is larger than the pressure acting on the back pressure surface 354, the valve element 352 is far from the valve seat 351, the first valve port is opened in the forward direction, forward conduction of the working fluid from the second channel 16 to the third channel 13 is realized, when the pressure acting on the positive pressure surface 353 is smaller than the pressure acting on the back pressure surface 354, the valve element 352 closes the first valve port in the reverse direction (at this time, the valve element 352 is in sealing abutment with the valve seat 351), a reverse cut-off of the working fluid from the third channel to the second channel 16 is achieved. The valve seat 352 of the valve member 35 is limited by the plug 36, which is beneficial to reducing the number of parts of the valve member 35, such as reducing the original circlip part for limiting the valve seat 352, facilitating the structure of the valve member 35 to be simple, and facilitating the installation of the valve member 35. In this embodiment, the plug 36 further has a communication hole 361 and a receiving chamber 362, the communication hole 361 communicates the receiving chamber 362 with the communication port 161, the number of the communication holes 361 may be plural, the communication holes 361 may be distributed along the radial direction of the receiving chamber 362 and the same circumference, so that the fluid flow is relatively stable, a part of the valve member 35 may be located in the receiving chamber 362, such as a part of the stem and at least a part of the elastic member of the valve member located in the receiving chamber 362 in this embodiment, the communication hole 361 is provided to facilitate the working fluid to flow from the communication port 161 of the second channel 16 into the receiving chamber 362 to act on the positive pressure surface 353 of the valve member, and the valve member 35 is rapidly operated through the communication hole 361.

Referring to fig. 1 and 2, the fluid control assembly 100 further has interfaces through which the fluid control assembly 100 is in butt communication with other elements in the thermal management system, and the interfaces include a first interface 41, a second interface 42, a third interface 43, a fourth interface 44, and a fifth interface 45, where the first interface 41 is formed as a part of the fourth channel 11, at least a part of the opening of the first interface 41 is located on the outer wall surface of the first side of the connection block 1, the second interface 42 is formed as a part of the fifth channel 12, and at least a part of the opening of the second interface 42 is located on the outer wall surface of the second side of the connection block 1, and in this embodiment, the outer wall surface of the first side and the outer wall surface of the second side are two opposing outer wall surfaces of the connection block 1. The first valve element 31 is capable of communicating and non-communicating the first port 41 and the second port 42, and further, when communicating, the first valve element 31 is capable of throttling and communicating the first port 41 and the second port 42 in a straight-through manner. The third port 43 is formed as a part of the third passage 13, at least a part of the opening of the third port 43 is located on the outer wall surface of the third side of the connection block 1, and the third valve element 33 can communicate and not communicate the first port 41 and the third port 43, and further, when communicating, the third valve element 33 directly communicates the first port 41 and the third port 43. The sixth passage 14 has a first port 141 for communicating with the heat exchange element 2, the sixth passage 14 communicates with the first flow passage of the heat exchange element 2 through the first port 141, the second valve element 32 can communicate and does not communicate the third port 43 and the first port 141, and further, when communicating, the second valve element 32 throttles the communication of the third port 43 and the first port 141. The seventh passage 15 also has a second port 151 for communicating with the heat exchange element 2, and the seventh passage 15 communicates with the first flow passage through the second port 151. The first port 141 and the second port 151 are oriented in the same direction, or at least part of the first port 141 and at least part of the second port 151 are located on the outer wall surface of the fourth side of the connection block 1, in this embodiment, the outer wall surface of the third side and the outer wall surface of the fourth side are two opposite outer wall surfaces of the connection block 1, and the heat exchange element 2 is fixedly mounted on the fourth side of the connection block 1 by screws through the connection plate 21. The fourth port 44 is formed as a part of the second passage 16, at least a part of the opening of the fourth port 44 is located on the outer wall surface of the third side of the connection block 1, the fifth port 45 is formed as a part of the seventh passage 15, at least a part of the opening of the fifth port 45 is located on the outer wall surface of the second side of the connection block 1, and the fourth valve element 34 can communicate and does not communicate the fourth port 44 with the fifth port 45, and further, when communicating, the fourth valve element 34 directly communicates the fourth port 44 with the fifth port 45. The opening that sets up the interface is located the outer wall surface of connecting block 1's the difference side, is favorable to make full use of connecting block 1's space, makes connecting block 1 miniaturized, is favorable to the interface to avoid interfering when butt joint with other components simultaneously.

Referring to fig. 1, the fluid control assembly 100 further includes a mounting bracket 5, the fluid control assembly 100 is fixed to a vehicle or other equipment through the mounting bracket 5, the mounting bracket 5 is fixedly connected or limited to the connecting block 1, in this embodiment, the mounting bracket 5 is fixed to the connecting block 1 through a screw, and the mounting bracket 5 is installed on a side different from the side where the interface opening of the connecting block 1 is located, or the mounting bracket 5 is installed on a fifth side of the connecting block 1. In addition, the valve element is mounted to a sixth side of the connection block 1, wherein the fifth and sixth sides are two opposite sides of the connection block 1. The heat exchange element 2, the mounting bracket 5 and the valve element are arranged on different sides of the connecting block 1 and are not located on the side where the interface opening is located, so that the space of the connecting block 1 is favorably and fully utilized, the connecting block 1 is miniaturized, and the fluid control assembly 100 is favorably compact in structure.

The fluid control assembly 100 may be applied to a thermal management system, referring to fig. 6 to 8, which is an embodiment in which the fluid control assembly 100 is applied to a thermal management system, in the present embodiment, the thermal management system includes a compressor 201, an accumulator 202, an evaporator 203, a condenser 204, an outdoor heat exchanger 205, and an expansion valve 206, in the thermal management system of the related art, the evaporator 203, the condenser 204, and the expansion valve 206 can be integrated into a related assembly, wherein an outlet of the condenser 204 is in butt communication with a first port 41, a second port 42 is in butt communication with an inlet of the outdoor heat exchanger 205, an outlet of the outdoor heat exchanger 205 is in butt communication with a fourth port 44, a third port 43 is in butt communication with an inlet of the evaporator 203 through the accumulator 202, a fifth port 45 is in butt communication with an inlet of the compressor 201 through the expansion valve 206, an outlet of the compressor 201 is in butt communication with an inlet of the condenser 204, of course, as another embodiment, the thermal management system may not include the accumulator 202 if the requirement is met, that is, the fifth interface 45 is in butt communication with the inlet of the compressor 201.

Referring to fig. 1-8, the fluid control assembly 100 is applied to a thermal management system including, but not limited to, three modes of operation:

a first operating mode: the first valve element 31 and the second valve element 32 are opened, the third valve element 33 and the fourth valve element 34 are closed, the first valve element 31 is located at the second working position, the first valve element 31 is communicated with the fourth channel 11 and the fifth channel 12 in a straight-through mode, the second valve element 32 is communicated with the third channel 13 and the sixth channel 14 in a throttling mode, the first port 41 and the fourth port 44 are inlets, and the second port 42, the third port 43 and the fifth port 45 are outlets.

Specifically, the high-temperature and high-pressure working fluid (e.g., refrigerant) on the outlet side of the compressor 201 flows into the fourth channel 11 through the first port 41 after being condensed and radiated by the condenser 204, flows through the first valve element 31 to the fifth passage 12, flows to the outdoor heat exchanger 205 from the second port 42, is condensed and radiated again by the outdoor heat exchanger 205, flows to the second passage 16 through the fourth port 44, and flows into the third passage 13 through the first passage 17 under the forward conduction of the valve member 35, a part of the working fluid located in the third passage 13 is throttled by the second valve element 32 and becomes a low-temperature and low-pressure working fluid, flows toward the sixth passage 14, and flows into the first passage of the heat exchange element 2 through the first port 141, after absorbing heat in heat exchange with another working fluid (e.g., a coolant) in the second flow channel of the heat exchange element 2, the heat-absorbed fluid flows into the seventh channel 15 through the second port 151 and flows out through the fifth port 45; the other part of the working fluid in the third passage 13 flows from the third port 43 to the expansion valve 206, is throttled by the expansion valve 206, becomes a low-temperature and low-pressure working fluid, flows into the evaporator 203, evaporates and absorbs heat by the evaporator 203, flows out from the outlet of the evaporator 203, joins with the working fluid flowing out from the fifth port 45, is subjected to gas-liquid separation by the reservoir 202, flows to the inlet of the compressor, and performs the next cycle.

A second working mode: the first valve element 31, the second valve element 32, the third valve element 33 and the fourth valve element 34 are all opened, the first valve element 31 is located at the first working position, the first valve element 31 is in throttling communication with the fourth passage 11 and the fifth passage 12, the second valve element 32 is in throttling communication with the third passage 13 and the sixth passage 14, the third valve element 33 is in direct communication with the fourth passage 11 and the third passage 13, the fourth valve element 34 is in direct communication with the second passage 16 and the seventh passage 15, the first port 41 and the fourth port 44 are inlets, and the second port 42 and the fifth port 45 are outlets.

Specifically, the high-temperature and high-pressure working fluid on the outlet side of the compressor 201 is condensed by the condenser 204 to dissipate heat, and then flows into the fourth channel 11 through the first port 41, a part of the working fluid in the fourth channel 11 is throttled by the first valve element 31 to become a low-temperature and low-pressure working fluid, flows into the fifth channel 12, flows into the outdoor heat exchanger 205 through the second port 42, evaporates by the outdoor heat exchanger 205 to absorb heat, flows into the second channel 16 through the fourth port 44, and flows into the first channel 17 on the positive pressure side (low pressure) of the valve member 35; a further part of the working fluid in the fourth channel 11 flows through the third valve element 33 into the third channel 13 and into the first channel 17 on the back pressure side (high pressure) of the valve member 35. since the pressure of the working fluid on the back pressure side of the valve member 35 is greater than the pressure of the working fluid on the positive pressure side of the valve member 35 after throttling, the valve member 35 is stopped in the opposite direction by the pressure difference, i.e. the second channel 16 is not communicated with the third channel 13. The working fluid (low pressure) located in the second passage 16 is communicated through the fourth valve element 34 into the seventh passage 15; the working fluid (high pressure) in the third passage 13 is throttled by the second valve element 32, becomes a low-temperature and low-pressure working fluid, flows to the sixth passage 14 (the expansion valve 206 is closed in this mode), flows into the first passage of the heat exchange element 2 through the first port 141, exchanges heat with another working fluid in the second passage of the heat exchange element 2 to absorb heat, flows into the seventh passage 15 through the second port 151, joins the working fluid flowing into the seventh passage 15 from the second passage 16, flows out from the fifth port 45, is subjected to gas-liquid separation by the accumulator 202, flows to the inlet of the compressor 201, and is subjected to the next cycle.

The third working mode is as follows: the first valve element 31 is open, the second valve element 32, the third valve element 33 and the fourth valve element 34 are closed, the first valve element 31 is located in the second working position, the first valve element 31 is communicated with the fourth channel 11 and the fifth channel 12, the first port 41 is an inlet, and the second port 42 and the third port 43 are outlets.

Specifically, the high-temperature and high-pressure working fluid on the outlet side of the compressor 201 is condensed and radiated by the condenser 204, flows into the fourth channel 11 through the first port 41, flows through the first valve element 31 to flow into the fifth channel 12, flows from the second port 42 to the outdoor heat exchanger 205, flows into the second channel 16 through the fourth port 44 after being condensed and radiated again by the outdoor heat exchanger 205, flows into the third channel 13 through the first channel 17 under the forward conduction of the valve member 35, flows into the expansion valve 206 from the third port 43 due to the closing of the second valve element 32, is throttled by the expansion valve 206, flows into the evaporator 203 as a low-temperature and low-pressure working fluid, is evaporated and absorbs heat by the evaporator 203, flows out from the outlet of the evaporator 203, flows into the inlet of the compressor 201 after being subjected to gas-liquid separation by the reservoir 202, and then flows into the next cycle.

It should be noted that: although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications and equivalents may be made thereto, and all technical solutions and modifications that do not depart from the spirit and scope of the present application are intended to be covered by the claims of the present application.

Claims (8)

1. A fluid control assembly, includes connecting block, valve member and end cap, its characterized in that: the fluid control assembly is provided with a channel, the channel comprises a first channel, at least part of the first channel is located in the connecting block, the fluid control assembly further comprises a flange portion, the flange portion is a portion of a wall forming the first channel, at least part of the plug is located in the first channel, the plug is fixedly connected or limited connected with the connecting block, the valve member is located in the first channel, the valve member comprises a valve seat, the valve seat is located between the flange portion and the plug along the axial direction of the first channel, one end face of the valve seat is abutted to the flange portion, and the other end face of the valve seat is abutted to the plug.

2. The fluid control assembly according to claim 1, wherein the channels further include a second channel and a third channel, at least a portion of the second channel and at least a portion of the third channel are located in the connecting block, the second channel communicates with the first channel, the first channel communicates with the third channel, the valve seat has a first valve port, the first valve port is disposed closer to the third channel than a communication port through which the second channel communicates with the first channel, in an axial direction of the first channel, and the second channel can communicate with the third channel through the first valve port.

3. The fluid control assembly of claim 2, wherein: the valve component also comprises a valve core, and the valve seat is positioned on at least part of the periphery of the valve core; the valve core comprises a positive pressure surface and a back pressure surface, and the positive pressure surface is closer to the communication port than the back pressure surface along the axial direction of the first channel.

4. The fluid control assembly of claim 3, wherein: the plug is provided with a communication hole and an accommodating cavity, the communication hole is communicated with the communication port and the accommodating cavity, part of the valve components are located in the accommodating cavity, the communication holes are distributed along the radial direction of the accommodating cavity in an equal circumference mode, and working fluid can act on the positive pressure surface through the accommodating cavity.

5. The fluid control assembly of claim 3 or 4, wherein: when the pressure acting on the positive pressure surface is greater than the pressure acting on the back pressure surface, the valve core is far away from the seat, and the first valve port is opened; when the pressure acting on the positive pressure surface is smaller than the pressure acting on the back pressure surface, the valve core is in sealing and abutting joint with the valve seat, and the first valve port is closed.

6. The fluid control assembly of any one of claims 2-5, wherein: the fluid control assembly further comprises a valve element and a heat exchange element, the valve element and the heat exchange element are respectively fixedly connected or in limit connection with the connecting block, the valve element comprises a first valve element, a second valve element, a third valve element and a fourth valve element, the channels further comprise a fourth channel, a fifth channel, a sixth channel and a seventh channel, at least part of the fourth channel, at least part of the fifth channel, at least part of the sixth channel and at least part of the seventh channel are positioned in the connecting block, the heat exchange element is provided with a first flow passage, the first valve element can be communicated and not communicated with the fourth channel and the fifth channel, the second valve element can be communicated and not communicated with the third channel and the sixth channel, and the third valve element can be communicated and not communicated with the fourth channel and the third channel, the fourth valve element is capable of communicating and not communicating the second passage and the seventh passage, and the first flow passage communicates the sixth passage and the seventh passage.

7. The fluid control assembly of claim 6, wherein: the fourth channel is provided with a first interface, the fifth channel is provided with a second interface, the third channel is provided with a third interface, the second channel is provided with a fourth interface, the seventh channel is provided with a fifth interface, at least part of the opening of the first interface is positioned on the outer wall surface of the first side of the connecting block, at least part of the opening of the second interface and at least part of the opening of the fifth interface are positioned on the outer wall surface of the second side of the connecting block, and at least part of the opening of the third interface and at least part of the opening of the fourth interface are positioned on the outer wall surface of the third side of the connecting block.

8. The fluid control assembly of claim 7, wherein: the fluid control assembly further comprises a mounting bracket, the mounting bracket is fixedly or limitedly connected with the connecting block, the heat exchange element is positioned on the fourth side of the connecting block, the mounting bracket is positioned on the fifth side of the connecting block, and the valve element is positioned on the sixth side of the connecting block.

Images