control valve

By designing an independently rotating valve core structure and using a sealing gasket, the problem of complex structure of multi-channel control valves in motor vehicle thermal management systems is solved, achieving both compactness and sealing performance of the control valve, and simplifying the assembly process.

CN115523326BActive Publication Date: 2026-01-02ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Application Number
CN202110712846.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-25
Publication Date
2026-01-02
Estimated Expiration
2041-06-25

AI Technical Summary

Technical Problem

Existing multi-channel control valves have a complex structure in motor vehicle thermal management systems, resulting in a non-compact system and making it difficult to simplify the assembly and sealing performance of components in the thermal management system.

Method used

Design a control valve comprising a drive assembly, a valve body, a first valve core, and a second valve core. The channels include a first flow channel and a second flow channel. The connecting ports are arranged along the height direction of the control valve. It adopts an independently rotating valve core structure, combined with a sealing gasket and a mounting part, to achieve precise control and sealing of the fluid.

Benefits of technology

This design achieves a compact control valve structure, simplifies component assembly, improves sealing performance and integration, reduces manufacturing difficulty, and facilitates combination with other components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a control valve, comprising a driving assembly, a valve body, a first valve core and a second valve core, the control valve has a first chamber and a second chamber in communication, the valve body comprises a first side wall part and a second side wall part, at least part of the first valve core is located in the first chamber, at least part of the second valve core is located in the second chamber, the driving assembly comprises a shell, a first driving part and a second driving part, the first driving part is in driving connection with the first valve core, the second driving part is in driving connection with the second valve core, the control valve has a first flow channel and a second flow channel, the first flow channel penetrates through the first side wall part to form a plurality of first communication ports, the second flow channel penetrates through the second side wall part to form at least two second communication ports, along the height direction of the control valve, the first side wall part is arranged with one first communication port, and the second side wall part is arranged with one second communication port; in this way, fluid control of a plurality of flow paths can be realized, and the design and manufacturing difficulty of the control valve is reduced.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of fluid control, in particular to a control valve. BACKGROUND

[0002] Some systems need to use multi-channel control valves to control flow paths, such as automotive thermal management systems, which generally use multiple control valves for control. It is desirable to provide a control valve with a simple structure to control the fluid of multiple flow paths, so that the structure of the control valve is compact, and it is also beneficial to simplify the thermal management system. SUMMARY

[0003] The purpose of the present application is to provide a control valve with a compact structure.

[0004] The control valve provided by the embodiments of the present application comprises a driving assembly, a valve body, a first valve core and a second valve core, the control valve has a first chamber and a second chamber in communication, the valve body comprises a first side wall part and a second side wall part, the first side wall part forms a peripheral wall or at least a part of the peripheral wall of the first chamber, the second side wall part forms a peripheral wall or at least a part of the peripheral wall of the second chamber, at least a part of the first valve core is located in the first chamber and can rotate, at least a part of the second valve core is located in the second chamber and can rotate,

[0005] The control valve has a passage, the passage comprises a first flow passage and a second flow passage, the first flow passage penetrates through the first side wall part to form a plurality of first communication ports, the first communication ports can communicate with the first chamber, the second flow passage penetrates through the second side wall part to form at least two second communication ports, the second communication ports can communicate with the second chamber,

[0006] Along the height direction of the control valve, the first side wall part is arranged with one first communication port, and the second side wall part is arranged with one second communication port.

[0007] According to the control valve provided by the embodiments of the present application, the passage of the control valve comprises a first flow passage and a second flow passage, the first flow passage penetrates through the first side wall part to form a first communication port, the second flow passage penetrates through the second side wall part to form a second communication port, and along the height direction of the control valve, the first side wall part is arranged with one first communication port, and the second side wall part is arranged with one second communication port. Compared with the case that when the number of passages of the control valve is large, a plurality of communication ports are arranged along the height direction of the control valve and there are at least two, the control valve of the embodiments of the present application has a smaller size in the height direction, so that the structure of the control valve is more compact and simple. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is an explosion structure schematic diagram of the control valve provided by an embodiment of the present application.

[0009] Figure 2 is a perspective view of the control valve in one of the angles provided by one embodiment of the present application;

[0010] Figure 3 is Figure 2 is a partial cross-sectional view of the control valve in one of the positions shown in the figure;

[0011] Figure 4 is a cross-sectional view of the valve body provided by one embodiment of the present application;

[0012] Figure 5 is a perspective view of the valve body provided by one embodiment of the present application;

[0013] Figure 6 is Figure 5 is an elevation view of the valve body in one of the angles shown in the figure;

[0014] Figure 7 is Figure 5 is an elevation view of the valve body in another of the angles shown in the figure;

[0015] Figure 8 is Figure 7 is a view of the structure along the direction A-A shown in the figure;

[0016] Figure 9 is a view of the structure of the sealing gasket provided by one embodiment of the present application;

[0017] Figure 10 is a partial view of the structure of the driving assembly provided by one embodiment of the present application. DETAILED DESCRIPTION

[0018] The features and exemplary embodiments of the various aspects of the present application will be described in detail below with reference to the drawings. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments. In this text, the relationship terms such as “first” and “second” are only used to distinguish one part from another part with the same name, and do not necessarily require or imply any actual relationship or order between the parts.

[0019] As Figures 1 to 3As shown, the embodiment of the present application provides a control valve 1, which comprises a driving assembly 40, a cover 103, a valve body 10, a first valve core 20 and a second valve core 30, at least part of the first valve core 20 and at least part of the second valve core 30 are located in the valve body 10, and the first valve core 20 and the second valve core 30 can be independently rotated under the driving of the driving assembly 40, so that the through cavities of the two valve cores are communicated with different valve ports of the control valve 1, thereby realizing the control function of the control valve 1 on the fluid. Further, the rotation axis of the first valve core 20 is parallel to the rotation axis of the second valve core 30, at least part of the first valve core 20 and at least part of the second valve core 30 are located between the cover 103 and the valve body 10, the cover 103 and the valve body 10 are sealingly arranged, so as to prevent the leakage of the fluid in the control valve, the driving assembly 40 is located on the side of the cover 103 away from the valve body 10, and the driving assembly 40 can drive the first valve core 20 and the second valve core 30 to rotate.

[0020] Further referring to Figures 1 to 4 , the control valve 1 has a first chamber 11, a second chamber 12 and a communication hole 13 communicating the first chamber 11 and the second chamber 12, the arrangement direction of the first chamber 11 and the second chamber 12 intersects with the height direction of the control valve 1, for example, in Figure 3 , the arrangement direction of the first chamber 11 and the second chamber 12 is perpendicular to the height direction of the control valve 1. As Figure 4 , the valve body 10 comprises a first side wall 14 and a second side wall 15, the first side wall 14 and the second side wall 15 are fixedly connected and sealingly arranged, or the first side wall 14 and the second side wall 15 are integrally formed, the first side wall 14 is the peripheral wall or at least part of the peripheral wall of the first chamber 11, and the second side wall 15 is the peripheral wall or at least part of the peripheral wall of the second chamber 12. One end of the communication hole 13 forms one communication opening in the first side wall 14, and the other end of the communication hole 13 forms another communication opening on the second side wall 15, thereby communicating the first chamber 11 and the second chamber 12.

[0021] Further referring to Figure 4 and Figure 7 , the valve body 10 can further comprise a connecting wall 18 connecting the first side wall 14 and the second side wall 15, the connecting wall 18 is located between the first side wall 14 and the second side wall 15, and the connecting wall 18 is the peripheral wall or at least part of the peripheral wall of the communication hole 13. Optionally, the first side wall 14, the second side wall 15 and the connecting wall 18 can be integrally formed, as Figure 7 , one end of the communication hole 13 penetrates the first side wall 14 to form one communication opening, and the other end of the communication hole 13 penetrates the second side wall 15 to form another communication opening, along the direction from the first chamber 11 to the second chamber 12, the hole diameter of the communication hole 13 increases, so that the communication hole 13 has a larger flow area, which is beneficial to reduce the flow resistance of the fluid.

[0022] In combination Figures 4 to 8 In some embodiments, the control valve 1 has at least five passages, and in the embodiments of the present application, the control valve 1 has nine passages, including a first passage 101 and a second passage 102. One end of the first passage 101 penetrates through the first side wall portion 14 to form a first communication port 141, which is in communication with the first chamber 11. The other end of the first passage 101 penetrates through the outer surface of the control valve 1 to form a first valve port 1011, so that fluid can enter or exit the control valve 1 from the first valve port 1011. One end of the second passage 102 penetrates through the second side wall portion 15 to form a second communication port 151, which is in communication with the second chamber 12. The other end of the second passage 102 penetrates through the outer surface of the control valve 1 to form a second valve port 1021, so that fluid can enter or exit the control valve 1 from the second valve port 1021. In the control valve 1 provided in the embodiments of the present application, one first communication port 141 is arranged along the height direction of the control valve 1 on the first side wall portion 14, and one second communication port 151 is arranged along the height direction of the control valve 1 on the second side wall portion 15. By rotating the first valve core 20 and / or the second valve core 30, at least two first communication ports 141 can be connected through the through cavity of the first valve core 20 to achieve the connection between multiple first valve ports 1011, and the first communication port 141 and the second communication port 151 can be connected through the through cavity of the first valve core 20 and the through cavity of the second valve core 30 to achieve the multi-connection between the first valve port 1011 and the second valve port 1021, thereby achieving the control function of the control valve 1 on fluid.

[0023] Further referring to Figures 6 to 8 In some embodiments, the first communication ports 141 are arranged along the circumference of the first side wall portion 14, and the second communication ports 151 are arranged along the circumference of the second side wall portion 15. Along the height direction of the control valve 1, the centers of the first communication ports 141 and the centers of the second communication ports 151 are located at the same height of the control valve 1, i.e., the plane passing through the centers of the first communication ports 141 and the centers of the second communication ports 151 is perpendicular to the height direction of the control valve 1. In Figure 8 In some embodiments, the distance between the center of each first communication port 141 and the bottom end surface of the valve body 10 can be h, and the specific value of h can be set according to user's requirements. Through the above arrangement, the communication ports can be arranged in order, which is conducive to reducing the size of the control valve 1 along the height direction.

[0024] In order to facilitate the assembly of the control valve 1 with other components in the thermal management system and improve the integration level of the control valve 1 with other components in the system, in some embodiments, as Figures 1 to 8The valve body 10 further comprises a mounting portion 17, the planar mounting portion 17 can be fixedly connected with the first side wall portion 14, the second side wall portion 15 and the connecting wall portion 18 respectively, for example, the planar mounting portion 17, the first side wall portion 14, the second side wall portion 15 and the connecting wall portion 18 can be integrally formed, the planar mounting portion 17 has a mounting face 171 facing away from the driving assembly 40, the first valve port 1011 and the second valve port 1021 of the control valve 1 both penetrate the mounting face 171, so that each valve port of the control valve 1 is arranged on the mounting face 171 and the orientations of each valve port are the same, which can relatively simplify the assembly steps of the control valve 1 and other components and reduce the leakage points of the connecting portions and increase the sealing reliability.

[0025] In combination Figures 1 to 9 In order to realize the sealing performance of the control valve 1 and other components after installation, the control valve 1 further comprises a sealing gasket 50, the sealing gasket 50 comprises a plurality of channels 51 penetrating the sealing gasket 50 along the thickness direction of the sealing gasket 50, the channels 51 are in communication with the corresponding first valve port 1011 and the second valve port 1021, in order to facilitate the installation of the sealing gasket 50, the planar mounting portion 17 further comprises a recess 172, the recess 172 is recessed from the mounting face 171 to the inside of the planar mounting portion 17, wherein the width of the recess is greater than or equal to 6mm, the thickness of the sealing gasket 50 is greater than the recess depth of the recess 172, so that the sealing gasket 50 is clamped when the control valve 1 and other components are assembled, and the sealing performance is realized, optionally, the sealing gasket 50 can be an X-shaped sealing gasket, which facilitates to improve the compression amount of the sealing gasket 50, and further improves the sealing performance of the combined structure of the control valve and other components.

[0026] Optionally, the control valve 1 comprises seven first channels 101 and two second channels 102, the seven first channels 101 form seven first valve ports 1011, and the two second channels 102 form two second valve ports 1021, please refer to Figure 6 The angle a formed by the centers of two adjacent first valve ports 1011 and the axis of the first chamber 11 is 45 degrees, the minimum distance m between the inner walls of two adjacent first valve ports 1011 is greater than or equal to 6mm, and the cross-sectional area of the first valve port 1011 is equal to the cross-sectional area of the second valve port 1021, so that the first valve port 1011 and the second valve port 1021 have the same fluid flow area.

[0027] In combination Figures 2 to 7In some embodiments, the valve body 10 further comprises a first connecting portion 191 fixedly connected with or integrally formed with the first side wall portion 14, and the first channel 101 is located in the first connecting portion 191. The first side wall portion 14 has a cross section in the shape of a circular ring with an opening, and the inner surface of the cross section of the first connecting portion 191 has a sector shape. The arc length of the cross section of the first connecting portion 191 away from the first side wall portion 14 is greater than the arc length of the cross section of the first connecting portion 191 close to the first side wall portion 14. It should be noted that the cross section is a section obtained by cutting the valve body 10 in a direction perpendicular to the height of the valve body 10. In some embodiments, the valve body 10 further comprises a second connecting portion 192 fixedly connected with or integrally formed with the second side wall portion 15, and the second flow channel 102 penetrates through the second connecting portion 192. The second side wall portion 15 comprises a flat plate portion, and the second communication port 151 penetrates through the flat plate portion. The inner surface of the cross section of the second connecting portion 192 has a rectangular shape.

[0028] For further reference Figures 5 to 7 In some embodiments, the control valve 1 further comprises at least three first mounting portions 161 and at least one second mounting portion 162. The first mounting portions 161 are arranged along the circumference of the first side wall portion 14 and fixedly connected with or integrally formed with the first side wall portion 14. The second mounting portion 162 is fixedly connected with or integrally formed with the second side wall portion 15. Along the arrangement direction of the first chamber 11 and the second chamber 12, at least one of the second mounting portions 162 is arranged on one side of the second chamber 12 separately from the first mounting portions 161. Through the above arrangement, stable installation of the control valve can be achieved.

[0029] The driving assembly 40 of the embodiment of the present application will be described below. In combination with Figures 1 to 3 , Figure 10 At least part of the driving assembly 40 is located on one side of the valve body 10 along the height direction of the valve body 10. The driving assembly 40 comprises a housing 45, a first driving member 43 and a second driving member 44. The housing 45 has a receiving cavity 453. At least part of the first driving member 43 and at least part of the second driving member 44 are located in the receiving cavity 453. The first driving member 43 comprises a first motor 431 and a first transmission gear set 432 in transmission connection. The first transmission gear set 432 comprises a first output gear 4321 in transmission connection with the first valve core 20 to drive the first valve core 20 to rotate. The second driving member 44 comprises a second motor 441 and a second transmission gear set 442 in transmission connection. The second transmission gear set 442 comprises a second output gear 4421 in transmission connection with the second valve core 30 to drive the second valve core 30 to rotate, so as to drive the first valve core 20 and the second valve core 30 to rotate.

[0030] For further reference Figure 1 and Figure 10In some embodiments, the first motor 431 comprises a first power supply terminal 4311, the first power supply terminal 4311 comprises a positive power supply terminal and a negative power supply terminal, the second driving member 44 comprises a second power supply terminal 4411, the second power supply terminal 4411 comprises a positive power supply terminal and a negative power supply terminal, the driving assembly 40 further comprises a plurality of wire segments 46 and a control member 47, the first power supply terminal 4311 and the second power supply terminal 4411 are both electrically connected to the control member 47 through the wire segments 46, so that the electrical signal can be transmitted between the control member 47 and the power supply terminals through the wire segments 46, realizing the power supply operation of the first motor 431 and the second motor 441. Wherein, the first driving member 43 and the second driving member 44 can be symmetrically arranged about the symmetry axis extending along the width direction of the driving assembly 40, the first driving member 43 and the second driving member 44 are located on one side of the width direction of the driving assembly 40, and the control member 47 is located on the other side of the width direction of the driving assembly 40, so as to neatly arrange the components in the driving assembly 40, the width direction and the length direction of the driving assembly 40 are perpendicular to each other, and the width direction and the length direction of the driving assembly 40 are both perpendicular to the height direction of the control valve, in this paper, the height direction of the control valve, the height direction of the valve body and the height direction of the valve core are all parallel.

[0031] Further, in order to monitor the rotation of the first driving member 43, the second driving member 44 and the two valve cores, for example, to monitor whether the control valve is blocked, in some embodiments, the control member 47 comprises a control board 471, a first potentiometer 472 and a second potentiometer 473, the shaft of the first output gear 4321 is sleeved in the limiting hole of the first potentiometer 521 through the control board 51, and the shaft of the second output gear 4421 is sleeved in the limiting hole of the second potentiometer 522 through the control board 51. Through the above-mentioned setting, the rotating piece in the first potentiometer 521 rotates synchronously with the first output gear 4321, and the rotating piece in the second potentiometer 324 rotates synchronously with the second output gear 4421, so as to monitor the rotation of the motor and the valve core in the control valve.

[0032] In order to realize the rotation of the first valve core 20 and the second valve core 30, please further refer to Figure 3In some embodiments, the control valve 1 further comprises a first drive shaft 41 and a second drive shaft 42, the first drive shaft 41 is in an integral structure or in a transmission connection with the first valve core 20, the second drive shaft 42 is in an integral structure or in a transmission connection with the second valve core 30, the control valve 1 further comprises a cover body 103, the cover body 103 is located between the driving assembly 40 and the valve body 10 and is welded and sealed with the valve body 10, at least part of the first valve core 20 and at least part of the second valve core 30 are located between the cover body 103 and the valve body 10, the first drive shaft 41 passes through the cover body 103 to drive connect the first output gear 4321 and the first valve core 20, the second drive shaft 42 passes through the cover body 103 to drive connect the second output gear 4421 and the second valve core 30, and the first drive shaft 41 and the second drive shaft 42 are both sealed with the cover body 103.

[0033] In summary, according to the control valve 1 provided by the embodiments of the present application, there are at least five channels, the channels of the control valve include a first channel 101 and a second channel 102, the first channel 101 passes through the first communication port 141 formed by the first side wall portion 14 and is arranged along the circumference of the first side wall portion 14, the second channel 102 passes through the second communication port 151 formed by the second side wall portion 15 and is arranged along the circumference of the second side wall portion 15, and along the height direction of the control valve 1, the first side wall portion 14 is arranged with one first communication port 141, and the second side wall portion 15 is arranged with one second communication port 151, compared with the case that when the number of channels of the control valve is large, a plurality of communication ports are arranged along the height direction of the control valve and there are at least two, the control valve of the embodiments of the present application has a smaller size in the height direction, so that the structure of the control valve is more compact and simple; further, the control valve 1 comprises the first valve core 20 and the second valve core 30, the driving assembly 40 comprises the first driving member 43 and the second driving member 44, the first driving member 43 is in a transmission connection with the first valve core 20, and the second driving member 44 is in a transmission connection with the second valve core 30, so that the first valve core 20 and the second valve core 30 can rotate independently, so that the first valve core 20 and / or the second valve core 30 can conduct a plurality of first communication ports 141 and conduct the first communication port 141 and the second communication port 151 when rotating, to realize a plurality of control modes of the control valve 1; at the same time, due to the arrangement mode of the first communication port 141 and the second communication port 151 and the arrangement of the two valve cores to realize the conduction of each communication port, compared with the use of one valve core to realize the conduction mode of a plurality of communication ports, the control valve 1 provided by the embodiments of the present application can reduce the design and manufacturing difficulty of the first valve core 20 and the second valve core 30, and is convenient for popularization and application.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the technical solutions described in the present application. For example, the directions of "front", "back", "left", "right", "up", "down", etc. are defined. 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 skilled in the art can still modify, combine or equivalently replace the present application, and all technical solutions and improvements which do not deviate from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A control valve characterized by, The control valve comprises a driving assembly, a valve body, a first valve core and a second valve core, the control valve has a first chamber and a second chamber in communication, the valve body comprises a first side wall part and a second side wall part, the first side wall part forms a peripheral wall or at least a part of a peripheral wall of the first chamber, the second side wall part forms a peripheral wall or at least a part of a peripheral wall of the second chamber, at least a part of the first valve core is located in the first chamber and can rotate, at least a part of the second valve core is located in the second chamber and can rotate, The control valve has a passage, the passage comprises a first flow passage and a second flow passage, the first flow passage penetrates through the first side wall part to form a plurality of first communication ports, the first communication ports can communicate with the first chamber, the second flow passage penetrates through the second side wall part to form at least two second communication ports, the second communication ports can communicate with the second chamber, Along the height direction of the control valve, the first side wall part is arranged with one first communication port, and the second side wall part is arranged with one second communication port; The valve body further comprises a first connecting part, the first connecting part is fixedly connected or integrally formed with the outer surface of the first side wall part, and the first flow passage penetrates through the first connecting part; the inner surface of the cross section of the first connecting part is in a fan-shaped structure, and the arc length of the circular arc away from the axis direction of the first side wall part is greater than the arc length of the circular arc close to the axis direction of the first side wall part.

2. The control valve according to claim 1, characterized in that At least a part of the driving assembly is located on one side of the control valve in the height direction, the driving assembly comprises a housing, a first driving member and a second driving member, the housing has a receiving cavity, at least a part of the first driving member and at least a part of the second driving member are located in the receiving cavity, the first driving member is in transmission connection with the first valve core, and the second driving member is in transmission connection with the second valve core.

3. The control valve according to claim 1, characterized in that, The first communication ports are arranged along the circumferential direction of the first side wall part, and the second communication ports are arranged along the circumferential direction of the second side wall part, Along the height direction of the control valve, the center of the first communication port and the center of the second communication port are located at the same height of the control valve.

4. The control valve according to claim 2, characterized in that, The first driving member comprises a first motor, the first motor comprises a first power supply terminal, the second driving member comprises a second motor, the second motor comprises a second power supply terminal, the driving assembly further comprises a control member, the first power supply terminal and the second power supply terminal are electrically connected with the control member, The first driving member and the second driving member are symmetrically arranged about a symmetry axis extending in the width direction of the driving assembly, the first driving member and the second driving member are located on one side of the driving assembly in the width direction, and the control member is located on the other side of the driving assembly in the width direction.

5. The control valve according to any one of claims 1 to 4, characterized by The control valve further comprises a first driving shaft and a second driving shaft, the first driving shaft is in an integral structure or in transmission connection with the first valve core, and the second driving shaft is in an integral structure or in transmission connection with the second valve core, The first driving member comprises a first motor and a first transmission gear set, the first transmission gear set comprises a first output gear, the second driving member comprises a second motor and a second transmission gear set, the second transmission gear set comprises a second output gear, The control valve further comprises a cover body between the driving assembly and the valve body and welded and sealed with the valve body, at least part of the first valve core and at least part of the second valve core are between the cover body and the valve body, the first driving shaft passes through the cover body to drive connect the first output gear and the first valve core, the second driving shaft passes through the cover body to drive connect the second output gear and the second valve core, and the first driving shaft and the second driving shaft are both sealed with the cover body.

6. The control valve according to any one of claims 1 to 4, characterized by The control valve further comprises at least three first mounting portions and at least one second mounting portion, the first mounting portions are arranged along the circumference of the first side wall portion and fixedly connected with the first side wall portion or integrated structure, and the second mounting portion is fixedly connected with the second side wall portion or integrated structure. Along the arrangement direction of the first chamber and the second chamber, at least one of the second mounting portion and the first mounting portion is arranged on both sides of the second chamber.

7. The control valve according to any one of claims 1 to 4, characterized by The control valve further has a communication hole channel communicating the first chamber and the second chamber, the valve body further comprises a connecting wall portion fixedly and sealingly connected between the first side wall portion and the second side wall portion, the connecting wall portion is a part of the circumference wall of the communication hole channel, One end of the communication hole channel penetrates through the first side wall portion, the other end penetrates through the second side wall portion, and the connecting wall portion is arranged obliquely, along the arrangement direction of the first chamber to the first chamber, the aperture of the communication hole channel increases.

8. The control valve according to any one of claims 1 to 4, characterized by The cross section of the first side wall portion along the height direction perpendicular to the first side wall portion is a circular ring structure with an opening.

9. The control valve of claim 8, wherein, The valve body further comprises a second connecting portion fixedly connected with the outer surface of the second side wall portion or integrally formed, the second flow channel penetrates through the second connecting portion, The second side wall portion comprises a flat plate portion, the second communication port penetrates through the flat plate portion, and the inner surface of the cross section of the second connecting portion is a rectangular structure.

10. The control valve according to claim 9, characterized in that The valve body further comprises a flat mounting portion, the flat mounting portion comprises a mounting surface away from the driving assembly, the first connecting portion and the second connecting portion are fixedly connected with the flat mounting portion or integrally formed, the first flow channel penetrates through the mounting surface to form a first valve port, and the second flow channel penetrates through the mounting surface to form a second valve port, The control valve comprises seven first flow channels and two second flow channels, seven first flow channels form seven first valve ports, two second flow channels form two second valve ports, the angle between the centers of adjacent two first valve ports and the axis of the first side wall portion is 45 degrees, the distance between the inner walls of adjacent two first valve ports is greater than or equal to 6mm, and the cross section area of the first valve port is equal to the cross section area of the second valve port.

11. The control valve according to claim 10, characterized in that The planar mounting portion includes a recessed groove recessed from the mounting face toward an interior of the planar mounting portion, the recessed groove having a width of 6 mm or more, The control valve further includes a sealing gasket positioned within the recessed groove, the sealing gasket having a thickness greater than a recessed depth of the recessed groove, the sealing gasket including a plurality of passages extending therethrough, the passages being in communication with the corresponding first valve port and the second valve port.

Citation Information

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