CN118309816A

CN118309816A - Valve device and integrated component

Info

Publication number: CN118309816A
Application number: CN202310025498.6A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2024-07-09
Also published as: CN118309817A

Abstract

A valve assembly and an integrated assembly including the valve assembly, the valve assembly including a valve body assembly and a valve spool, at least a portion of the valve spool being located within the valve body assembly; the valve body assembly is provided with a first communication port and a second communication port, the valve core is provided with a communication channel, the communication channel can be communicated with the first communication port, and the communication channel can be communicated with the second communication port; the valve body assembly comprises an outer peripheral part, and the first communication port is positioned on the outer peripheral part; the valve device comprises the first sealing element, at least part of the first sealing element circumferentially surrounds the first communication port, and the first sealing element is fixedly connected with the outer periphery or is of an integrated structure, so that the number of parts of the valve device can be reduced, the assembly steps of the valve device can be simplified, and on the other hand, the risk that the first sealing element falls off can be reduced.

Description

Valve device and integrated component

Technical Field

The application relates to the technical field of fluid control, in particular to a valve device and an integrated assembly.

Background

The valve device can be applied to a refrigerant system for controlling opening or closing or reversing of a fluid passage, etc. In the related art, a valve device can be mounted to a mounting block having a fluid passage, and at least a portion of the valve device is for insertion into a mounting cavity of the mounting block, the portion forming a seal with a wall forming the mounting cavity by a seal. In general, the seal is of a separate construction from the valve device, which may result in the seal being easily disengaged or dislodged from the valve device.

Disclosure of Invention

The application aims to provide a valve device and an integrated assembly, which are beneficial to improving the firmness of a sealing element and the valve device.

In order to achieve the above object, one embodiment of the present application adopts the following technical scheme: a valve device comprising a valve body assembly and a valve core, at least part of the valve core being positioned in a containing cavity of the valve body assembly; the valve body assembly is provided with a first communication port and a second communication port, the valve core is provided with a communication channel, the communication channel can be communicated with the first communication port, and the communication channel can be communicated with the second communication port; the valve body assembly comprises an outer peripheral portion, and the first communication port is positioned on the outer peripheral portion; the valve device comprises a first sealing element which is fixedly connected with the peripheral part or is of an integrated structure; at least a portion of the first seal circumferentially surrounds the first communication port.

One embodiment of the present application further provides an integrated assembly, including a communication assembly and the valve device described above, where the communication assembly includes a first flow channel, a second flow channel, and a mounting cavity, at least a portion of the valve body assembly is located in the mounting cavity, the first flow channel is in communication with the first communication port, and the second flow channel is in communication with the second communication port; a first seal is located between a wall forming the mounting cavity and the outer peripheral portion in a radial direction of the valve body assembly, the wall forming the mounting cavity and the outer peripheral portion compressing the first seal.

One embodiment of the present application provides a valve device and an integrated component, where the valve device includes a first sealing member, at least part of the first sealing member circumferentially surrounds a first communication port, and the first sealing member is fixedly connected with or integrally formed with an outer peripheral portion, so that the number of parts of the valve device can be reduced, the assembly steps of the valve device can be simplified, and on the other hand, the risk of falling off of the first sealing member can be reduced.

Drawings

Fig. 1 shows a schematic perspective view of an embodiment of a valve device according to the application;

FIG. 2 shows an exploded schematic view of the valve device of FIG. 1;

FIG. 3 shows a schematic side view of the valve device of FIG. 1;

FIG. 4 shows a schematic cross-sectional view of the valve device of FIG. 3 along line A-A;

FIG. 5 shows a schematic perspective cross-sectional view of the valve device of FIG. 4 along line B-B;

FIG. 6 shows a schematic cross-sectional structural view of a portion of the valve device of FIG. 4;

FIG. 7 shows an enlarged partial schematic view of the valve device of FIG. 6 at Y;

FIG. 8 shows a schematic partial cross-sectional view of another embodiment of a valve device of the present application;

FIG. 9 shows a schematic partial cross-sectional structure of yet another embodiment of the valve device of the present application;

FIG. 10 illustrates a schematic cross-sectional structural view of a portion of one embodiment of an integrated assembly of the present application;

FIG. 11 illustrates an exploded view of the integrated assembly of FIG. 10;

FIG. 12 shows a schematic perspective view of yet another embodiment of the valve device of the present application;

FIG. 13 shows an exploded schematic view of a portion of the valve assembly of FIG. 12;

FIG. 14 shows a schematic cross-sectional structural view of the valve device of FIG. 12;

FIG. 15 shows a schematic perspective cross-sectional view of the valve device of FIG. 14 taken along line C-C;

FIG. 16 shows a schematic perspective view of yet another embodiment of a valve device of the present application;

FIG. 17 shows an exploded schematic view of a portion of the valve assembly of FIG. 16;

FIG. 18 shows a schematic perspective cross-sectional view of the valve device of FIG. 16;

FIG. 19 shows a schematic cross-sectional structural view of yet another embodiment of the valve device of the present application;

FIG. 20 shows a schematic cross-sectional structural view of a portion of the valve device of FIG. 19;

fig. 21 shows a partially enlarged schematic view of a portion X of the valve device of fig. 20.

Reference numerals:

100. 200, 300, 400, valve means;

10. A valve body assembly; 1. a first cover; 2. a second cover; 3. a valve body; 32. an outer peripheral portion; 321. a groove; 33. a first channel; 34. a second channel; 35. a first communication port; 36. a second communication port; 311. an inner sidewall; 322. a second through hole; 4. a seal holder assembly; 51. a first seal; 511. a connection part; 512. a sealing part; 513. a first end; 514. a second end; 515. a first through hole; 52. a second seal; 6. a communication assembly; 61. a first flow passage; 62. a second flow passage; 63. a mounting cavity; 7. a valve core; 71. a communication passage; 81. a stator assembly; 811. a coil; 82. a rotor assembly; 9. and a transmission assembly.

Detailed Description

The present application will be described in further detail with reference to the drawings and the embodiments, in order to make the objects, technical solutions and advantages of the present application more apparent. Relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any such actual relationship or order between the elements.

The valve arrangement may be applied to a thermal management system, wherein the thermal management system may be a vehicle thermal management system, such as a new energy vehicle thermal management system.

As shown in fig. 1 to 7, the valve device 100 includes a valve body assembly 10, a valve element 7, a rotor assembly 82, a transmission assembly 9, and a stator assembly 81, and at least a part of the valve element 7 is located in a housing chamber 31 provided in the valve body assembly 10. The rotor assembly 82 is in transmission connection with the transmission assembly 9, the valve core 7 is in transmission connection with the transmission assembly 9, and the valve core 7 can rotate under the drive of the transmission assembly 9. The stator assembly 81 may be electrically and/or signally connected to the outside, the stator assembly 81 comprising coils 811, at least part of the stator assembly 81 being located around the rotor assembly 82, and the transmission assembly 9 being a planetary gear mechanism.

As shown in fig. 4, an axial direction of the valve device 100 is defined, the axial direction of the valve device 100 is shown as H in the drawing, a rotation axis of the spool 7 is defined, the spool 7 is rotatable about the rotation axis, the rotation axis of the spool 7 is shown as S1 in the drawing, and the axial direction of the valve device 100 is the same as an extending direction of the rotation axis of the spool 7.

Fig. 10 and 11 show an integrated assembly comprising the valve device 100, and the integrated assembly further comprises a communication assembly 6, wherein the communication assembly 6 may be plate-shaped or block-shaped, only a part of the communication assembly 6 is shown in the drawing, the communication assembly 6 has a mounting cavity 63, and when the valve device 100 is mounted on the communication assembly 6, at least part of the valve body assembly 10 is located in the mounting cavity 63. At least a portion of the valve body assembly 10 is inserted into the mounting cavity 63 in the axial direction of the valve device 100 when the integrated assembly is assembled.

As shown in fig. 1 to 7, the valve body assembly 10 includes an outer peripheral portion 32, the valve body assembly 10 has a first passage 33, the first passage 33 has a first communication port 35 in the outer peripheral portion 32, and the outer peripheral portion 32 is disposed at an angle to a radial direction of the valve device 100, which makes the first communication port 35 have a length in an axial direction of the valve device 100. The valve device 100 includes a first seal member 51, and as shown in fig. 3 and 5, the first seal member 51 has a first through hole 515, the first through hole 515 corresponds to and communicates with the first communication port 35, and the first seal member 51 is fixedly connected to or integrally constructed with the outer peripheral portion 32. Further, at least a portion of the first seal 51 circumferentially surrounds the first communication port 35, and the first through hole 515 is not in communication with the second communication port 36, such that the first seal 51 is capable of preventing fluid communication of the second communication port 36 with the first communication port 35 outside the valve device 100. Compared with the sealing structure with a plurality of O-shaped rings extending along the circumferential direction of the valve device in the related art, the sealing structure is improved to be provided with the sealing at the circumferential direction of the communication port, so that raw materials can be reduced, the manufacturing process is simple, the processing procedure is reduced, and the cost is reduced. The first sealing member 51 is fixedly connected with the outer peripheral portion 32 of the valve body assembly 10 and forms a whole, so that the number of parts of the valve device 100 can be reduced, the assembly steps of the valve device 100 can be simplified, and the sealing effect can be improved; when the valve body assembly 10 is inserted into the communication assembly 6 in the axial direction of the valve device 100, the first sealing member 51 is prevented from falling off or being dislocated.

As shown in fig. 4, 10 and 11, the communication assembly 6 includes a first flow passage 61 and a second flow passage 62, the first flow passage 61 communicates with the first communication port 35 through a first through hole 515, and the second flow passage 62 communicates with the second communication port 36; in the radial direction of the valve body assembly 10, the first seal member 51 is located between the wall forming the mounting chamber 63 and the outer peripheral portion 32, and the wall forming the mounting chamber 63 and the outer peripheral portion 32 press the first seal member 51 to form a seal.

In the present embodiment, the first seal member 51 is fixed to the outer peripheral portion 32 by a vulcanization process, specifically, the outer peripheral portion 32 is made of a metal material, such as stainless steel, and the first seal member 51 is made of a rubber material, such as EPDM, so that the surface energy of the metal is high, and the firmness after vulcanization can be improved, so that the first seal member 51 can be fixed to the outer peripheral portion 32 of the valve body assembly 10 more firmly, and the risk of leakage is reduced. In other embodiments, the first seal 51 and the outer peripheral portion 32 may be adhesively secured.

As shown in fig. 1 to 7, in the present embodiment, the outer peripheral portion 32 is a curved surface. Specifically, the outer peripheral portion 32 extends in the axial direction of the valve device 100, and the outer peripheral portion 32 of the valve body assembly 10 is cylindrical or pillar-like, so that the size of the valve body assembly 10 in the radial direction of the valve device 100 can be reduced. Since the curved outer peripheral portion 32 is more difficult to mount the seal with respect to the flat surface, fixing the first seal 51 to the outer peripheral portion 32 by a vulcanization process reduces the risk of the first seal 51 falling off the curved surface. Defining a first surface, shown at S2 in fig. 4, which is perpendicular to the axial direction of the valve device 100, and which coincides with one end of the valve body assembly 10 in the axial direction of the valve device 100, the orthographic projection of the first seal member 51 on the first surface is parallel or substantially parallel to the outer peripheral portion 32, or the degree of curvature of the first seal member 51 conforms to the shape of the outer peripheral portion 32, this arrangement can reduce the size of the first seal member 51 in the radial direction of the valve device 100, and thus the radial size of the installation cavity 63, which is advantageous for miniaturization of the valve device 100 and the communication assembly 6. In the present embodiment, the first seal member 51 has an arc shape as a whole in front projection on the first surface. And in other embodiments, the outer peripheral portion 32 of the valve body assembly 10 may be tapered, prismatic, pyramidal, etc., and any configuration of the outer peripheral portion 32 that enables insertion is within the scope of the present application. It should be noted that "substantially parallel" means that the angle between the two is less than 5 °.

As shown in fig. 6 and 7, the first seal member 51 includes a connecting portion 511 and a sealing portion 512, the sealing portion 512 being distant from the outer peripheral portion 32 with respect to the connecting portion 511, the sealing portion 512 being for contact with a wall forming the mounting cavity 63. The connection portion 511 is fixedly connected to the outer peripheral portion 32 and is provided in a sealing manner, the sealing portion 512 extends away from the outer peripheral portion 32 with respect to the connection portion 511, the sealing portion 512 surrounds the first through hole 515 in the circumferential direction of the first through hole 515 and forms a closed loop, and the length of the connection portion 511 is longer than the length of the sealing portion 512 in the direction parallel to the outer peripheral portion 32 in the cross section of the first seal 51. Making the area of fixation between the first seal member 51 and the outer peripheral portion 32 relatively large can improve the degree of firmness of fixation between the first seal member 51 and the outer peripheral portion 32, reducing the risk of leakage between the first seal member 51 and the outer peripheral portion 32. The length of the sealing portion 512 is relatively small, so that the sealing portion 512 is more easily compressively deformed in the radial direction of the valve device 100, and in addition, so that the contact surface of the sealing portion 512 with the inner wall forming the mounting chamber 63 is relatively small after the valve device 100 is inserted into the mounting chamber 63, the pressure per unit area is relatively large, and the sealing effect of the first sealing member 51 with the inner wall forming the mounting chamber 63 is better. Specifically, the length of the connection portion 511 may be 1.5 times or more the length of the sealing portion 512.

The sealing portion 512 is smaller in length parallel to the outer peripheral portion 32 as the outer peripheral portion 32 is farther from the outer peripheral portion 32 in the cross section of the first seal member 51, so that demolding is facilitated when the first seal member 51 is manufactured. Specifically, the surface of the sealing portion 512 is arc-shaped so that friction with the inner wall forming the installation cavity 63 is small at the time of installation.

As shown in fig. 1 to 7, the valve body assembly 10 includes a first cover 1, a second cover 2, and a valve body 3, and an outer peripheral portion 32 is located at the valve body 3. The valve body 3 is cylindrical, the volume is reduced, and the valve body can be formed by machining by adopting a cylindrical pipe fitting, and the machining process is simple. Along the axial direction of the valve device 100, one end of the valve body 3 is welded and fixed with the first cover body 1 and is sealed, the other end of the valve body 3 is welded and fixed with the second cover body 2 and is sealed, the welding strength is more firm, and the assembly space can be saved. The valve device 100 further includes a seal seat assembly 4, and along the radial direction of the valve device 100, the seal seat assembly 4 is located between the outer peripheral surface of the valve core 7 and the valve body 3, the outer peripheral surface of the valve core 7 is cylindrical or column-like, and the seal seat assembly 4 is in sliding fit with the outer peripheral surface of the valve core 7.

In other embodiments, as shown in fig. 8, the outer peripheral portion 32 has a groove 321, and the groove 321 surrounds the first passage 33 in the circumferential direction of the first passage 33. At least a portion of the first seal 51 is located in the groove 321 and fixedly coupled to the inner wall forming the groove 321. In this way, the area of the first seal 51 secured to the valve body assembly 10 may be increased, reducing the risk of disconnection.

In other embodiments, as shown in fig. 9, a portion of the first seal 51 is located in the first channel 33, and the first seal 51 is fixedly connected to the inner wall forming the first channel 33. In this way, the area of the first seal 51 secured to the valve body assembly 10 may be increased, reducing the risk of disconnection.

In other embodiments, as shown in the valve device 400 of fig. 19-21, the valve body assembly 10 has a second through hole 322, the second through hole 322 extending from the outer peripheral portion 32 toward the valve spool 7, and at least a portion of the first seal 51 is located in the second through hole 322 and fixedly connected to an inner wall forming the second through hole 322. In this way, the area of the first seal 51 secured to the valve body assembly 10 may be increased, reducing the risk of disconnection. The valve body 3 includes an inner side wall 311, and at least a part of the inner side wall 311 faces the valve spool 7 in the radial direction of the valve device 100. The valve assembly 400 includes a second seal 52, the second seal 52 being fixedly coupled to the inner sidewall 311 and being sealingly disposed, such as by a vulcanization process, to increase the sealing effect and reduce the assembly steps. In the present embodiment, the first seal member 51 and the second seal member 52 are made of the same material, and the first seal member 51 and the second seal member 52 can be simultaneously injection molded and fixedly connected with the valve body 3 by a vulcanization process, so that the manufacturing process can be further simplified and the cost can be reduced. The valve body assembly 10 has a first channel 33, the first channel 33 has a third communication port 314 on an inner side wall 311, the second sealing element 52 surrounds the third communication port 314, the valve device 400 includes a sealing seat assembly 4, the second sealing element 52 is abutted with the sealing seat assembly 4, the second sealing element 52 is an elastic element, the second sealing element 52 has a certain compression amount in the radial direction of the valve device 400, the second sealing element 52 gives the sealing seat assembly 4a force towards the valve core 7, so that the sealing seat assembly 4 is attached to the valve core 7, and the first sealing element 52 can also play a role in error compensation.

As shown in fig. 4, in the axial direction of the valve device 100, one end portion of the valve body assembly 10 is fixedly connected or limitedly connected with the stator assembly 81, and the second communication port 36 is located at the end surface of the other end portion of the valve body assembly 10, so that the axial dimension of the valve body assembly 10 can be reduced, and the flow resistance of the flow passage inside the valve device 100 is made smaller. The valve body 7 has a communication passage 71, the communication passage 71 can communicate with the second communication port 36, the communication passage 71 can communicate with the first communication port 35, and in the present embodiment, a part of the communication passage 71 extends in the axial direction of the valve device 100 and communicates with the second communication port 36, and the communication passage 71 can communicate with the first communication port 35 by controlling the rotation of the valve body 7 to a specific angle range.

The distance from the first surface S1 is defined as the height. The valve body assembly 10 may have more than two first communication ports 35, and the communication passage 71 of the spool 7 may be capable of communicating with at least one of the respective first communication ports 35, and the height of the respective first communication ports 35 may be the same or at least partially the same, which may allow the size of the valve body assembly 10 in the axial direction of the valve device 100 to be reduced. Correspondingly, the valve device 100 may comprise more than two first seals 51; the number of the first sealing members 51 is the same as the number of the first communication ports 35, and each first sealing member 51 corresponds to each first communication port 35 one by one.

As shown in fig. 1 to 11, in the present embodiment, the valve body assembly 10 has two first communication ports 35, the heights of the two first communication ports 35 are the same or at least partially the same, the two first communication ports 35 are located on opposite sides of the outer peripheral portion 32 in the radial direction of the valve device 100, and the two first seals 51 are also located on both sides of the outer peripheral portion 32. Specifically, since the two first sealing members 51 are symmetrically disposed along one diameter of the valve body assembly 10, the two radial sides of the outer peripheral portion 32 are uniformly stressed, which is beneficial to improving the coaxiality of the valve body assembly 10 and the mounting cavity 63. By the rotation of the spool 7, the communication passage 71 of the spool 7 can selectively communicate with at least one of the two first communication ports 35.

In another embodiment, as shown in the valve device 200 of fig. 12 to 15, the valve body assembly 10 has three first communication ports 35, the three first communication ports 35 are identical in height or at least partially identical, the second communication port 36 is located at one end of the valve body assembly 10 in the axial direction of the valve device 300, and the three first communication ports 35 and the three first sealing members 51 are rotationally symmetrically distributed in the circumferential direction of the valve device 300. By the rotation of the spool 7, the communication passage 71 of the spool 7 can selectively communicate with at least one of the three first communication ports 35, and a one-way-in three-way function can be realized.

In another embodiment, as shown in the valve device 300 of fig. 16 to 18, the valve body assembly 10 has three first communication ports 35, the three first communication ports 35 and the second communication ports 36 are identical in height or at least partially identical, one first sealing member 51 corresponds to the second communication port 36, and the three first communication ports 35 and the second communication ports 36 are rotationally symmetrically distributed along the circumferential direction of the valve device 300. The valve core 7 has two communication channels 71, the heights of the two communication channels 71 are the same or at least partially the same, and one communication channel 71 can selectively conduct at least two of the three first communication ports 35 and the second communication ports 36 to realize a four-way switching function.

In another embodiment, the number of the first sealing members 51 may be one less than the number of the first communication ports 35, one of the respective first communication ports 35 does not correspond to any one of the first through holes 515, and the remaining respective first communication ports 35 correspond one-to-one to the first through holes 515 of the respective first sealing members 51. This is because the first communication port 35 is not in fluid communication with the other first communication ports 35 even after the remaining first communication ports 35 are sealed.

In some embodiments, as shown in fig. 6, the first seal 51 includes a first end 513 and a second end 514 at both ends thereof in the axial direction of the valve apparatus 100; the first and second ends 513, 514 of the first seal 51 are located on the same side of the valve body assembly 10 as the first communication port 35 in the radial direction of the valve device 100, such that the first seal 51 is disposed to facilitate its removal from the radial side of the valve body assembly 10.

In some embodiments, as shown in fig. 4, each first seal 51 is provided separately. In other embodiments, at least two of the respective first seals 51 may be of unitary construction for ease of manufacture. The shape of the first through hole 515 of the first sealing member 51 includes, but is not limited to, a circular shape, but may be rectangular, elliptical, or the like.

It should be noted that: the above embodiments are only for illustrating the present application and not for limiting the technical solutions described in the present application, for example, the definition of "front", "rear", "left", "right", "upper", "lower", etc., and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present application can be modified or replaced equally, and all technical solutions and modifications thereof without departing from the spirit and scope of the present application are intended to be covered by the scope of the appended claims.

Claims

1. A valve device (100, 200, 300, 400) comprising a valve body assembly (10) and a valve cartridge (7), at least part of said valve cartridge (7) being located in a receiving chamber (31) provided in said valve body assembly (10);

the valve body assembly (10) is provided with a first communication port (35) and a second communication port (36), the valve core (7) is provided with a communication channel (71), the communication channel (71) can be communicated with the first communication port (35), and the communication channel (71) can be communicated with the second communication port (36);

The valve body assembly (10) comprises an outer peripheral portion (32), and the first communication port (35) is positioned on the outer peripheral portion (32);

The valve device comprises a first sealing member (51), wherein the first sealing member (51) is fixedly connected with the peripheral part (32) or is of an integral structure;

at least part of the first seal (51) circumferentially surrounds the first communication port (35).

2. Valve device according to claim 1, characterized in that the first sealing member (51) comprises a connecting portion (511) and a sealing portion (512), the connecting portion (511) being fixedly connected with the peripheral portion (32), the sealing portion (512) extending away from the peripheral portion (32) with respect to the connecting portion (511), the first sealing member (51) having a first through-hole (515), the first through-hole (515) corresponding to and communicating with the first communication opening (35), the sealing portion (512) surrounding the first through-hole (515) in a circumferential direction of the first through-hole (515) and forming a closed loop, the connecting portion (511) having a length larger than a length of the sealing portion (512) in a direction parallel to the peripheral portion (32) in a cross section of the first sealing member (51).

3. Valve device according to claim 2, characterized in that, in the cross section of the first seal (51), the further away from the peripheral portion (32), the smaller the seal portion (512) along a length parallel to the peripheral portion (32).

4. A valve device according to any one of claims 1-3, characterized in that the first sealing member (51) is fixed to the peripheral portion (32) by a vulcanization process, or the first sealing member (51) is adhesively fixed to the peripheral portion (32).

5. The valve device according to claim 4, wherein the outer peripheral portion (32) is made of a metal material, and the first seal (51) is made of a rubber material.

6. A valve device according to any one of claims 1-5, wherein the peripheral portion (32) extends in the axial direction of the valve device, the peripheral portion (32) being cylindrical or pillar-like;

Defining a first face perpendicular to an axial direction of the valve device, the first face coinciding with one end of the valve body assembly (10) along the axial direction of the valve device; an orthographic projection of the first seal (51) on the first face is parallel or substantially parallel to the outer peripheral portion (32).

7. A valve device according to any one of claims 1 to 6, wherein,

The peripheral portion (32) has a groove (321), at least part of the first seal (51) being located in the groove (321) and fixedly connected to an inner wall forming the groove (321);

Or the valve body assembly (10) is provided with a second through hole (322), the second through hole (322) extends from the peripheral part (32) to the valve core (7), and at least part of the first sealing piece (51) is positioned in the second through hole (322) and fixedly connected with the inner wall forming the second through hole (322);

Or the valve body assembly (10) is provided with a first channel (33), the first channel (33) is communicated with the first communication port (35), and at least part of the first sealing piece (51) is positioned in the first channel (33) and fixedly connected with the inner wall forming the first channel (33).

8. A valve device according to any one of claims 1 to 5, wherein,

Defining a first face perpendicular to an axial direction of the valve device, the first face coinciding with one end of the valve body assembly (10) along the axial direction of the valve device, defining a distance from the first face as a height;

-said valve body assembly (10) having two or more first communication ports (35), said communication channel (71) being capable of communicating with at least one of each of said first communication ports (35), each of said first communication ports (35) being the same or at least partially the same in height, said valve means comprising two or more of said first seals (51);

the number of the first sealing pieces (51) is the same as that of the first communication ports (35), and each first sealing piece (51) corresponds to each first communication port (35) one by one;

Or the number of the first sealing elements (51) is one less than that of the first communication ports (35), one of the first communication ports (35) does not correspond to any one of the first through holes (515), and the rest of the first communication ports (35) correspond to the first through holes (515) of the first sealing elements (51) one by one;

-each of said first seals (51) is provided separately; or at least two of each of the first seals (51) are of unitary construction.

9. Valve device according to any of claims 2-8, wherein the first seal (51) comprises a first end (513) and a second end (514) at both ends thereof in the axial direction of the valve device; -said first end (513), said second end (514) of said first seal (51) being located on the same side of said valve body assembly (10) as said first communication port (35) in the radial direction of said valve device;

The valve device comprises a rotor assembly (82), a transmission assembly (9) and a stator assembly (81), wherein the rotor assembly (82) is in transmission connection with the transmission assembly (9), the valve core (7) is in transmission connection with the transmission assembly (9), and at least part of the stator assembly (81) is positioned on the periphery of the rotor assembly (82); along the axial direction of the valve device, one end part of the valve body assembly (10) is fixedly connected or in limit connection with the stator assembly (81), and the second communication port (36) is positioned on the end surface of the other end part of the valve body assembly (10).

10. An integrated assembly comprising a communication assembly (6) and the valve device of any of claims 1-9, the communication assembly (6) comprising a first flow passage (61), a second flow passage (62) and a mounting cavity (63), at least part of the valve body assembly (10) being located in the mounting cavity (63), the first flow passage (61) being in communication with the first communication port (35), the second flow passage (62) being in communication with the second communication port (36); the first seal (51) is located between a wall forming the mounting chamber (63) and the outer peripheral portion (32) in a radial direction of the valve body assembly (10), and the wall forming the mounting chamber (63) and the outer peripheral portion (32) press the first seal (51).