control valve

Abstract

This invention discloses a control valve, including a valve body, a valve core, and a sealing component. The control valve includes at least five channels, and the side wall has at least five connecting ports that communicate with the valve cavity. Each connecting port includes a first connecting port, which is arranged along the height and circumference of the side wall. Two first connecting ports are arranged along the circumference of the side wall. The sealing component includes a sealing body located between the valve core and the side wall. The sealing body has through holes, the number of which is the same as the number of first connecting ports and they are connected. The through holes are arranged along the height and circumference of the sealing body. Two through holes are arranged along the circumference of the sealing body. The inner surface of the sealing body is an arc surface, and the central angle corresponding to the arc surface of the sealing body is greater than 100 degrees and less than or equal to 180 degrees. This control valve not only enables fluid control of multiple flow paths but also reduces the manufacturing difficulty of the sealing component.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, and more specifically to a control valve. Background Technology

[0002] Some systems require multi-channel control valves to control flow paths. To achieve fluid control of multiple flow paths, multiple flow channels need to be set on the control valve. These multiple flow channels need to be sealed by sealing components. How to set up multiple flow channels and sealing components to achieve control of multiple flow paths while reducing the manufacturing difficulty of sealing components is an urgent problem to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a control valve that can not only achieve fluid control of multiple flow paths, but also reduce the manufacturing difficulty of sealing components.

[0004] This invention provides a control valve, including a valve body, a valve core, and a sealing component. The valve body includes a sidewall portion, and the control valve has a valve cavity. The sidewall portion is the peripheral wall of the valve cavity, or at least a portion thereof. The valve core is rotatable. At least a portion of the sealing component is located between the valve core and the sidewall portion. The control valve includes at least five channels, and the sidewall portion has at least five connecting ports that communicate with the valve cavity. One end of each channel penetrates the sidewall portion to form the connecting port, and the other end of each channel forms the valve port of the control valve.

[0005] The communication port includes a first communication port, which is arranged along the height direction and circumferential direction of the sidewall portion. Two first communication ports are arranged along the circumferential direction of the sidewall portion. The sealing component includes a sealing body portion located between the valve core and the sidewall portion. The sealing body portion has through holes penetrating the sealing component. The number of through holes is the same as the number of first communication ports, and they are correspondingly connected. The through holes are arranged along the height direction and circumferential direction of the sealing body portion. Two through holes are arranged along the circumferential direction of the sealing body portion. The inner surface of the sealing body portion is an arc surface, and the central angle corresponding to the arc surface of the sealing body portion is greater than 100 degrees and less than or equal to 180 degrees.

[0006] According to an embodiment of the present invention, the control valve includes a sidewall portion with a first communication port. The first communication port is arranged along the height direction and circumferential direction of the sidewall portion, and two first communication ports are arranged along the circumferential direction of the sidewall portion. Compared to arranging all the first communication ports along the circumferential direction of the sidewall portion, the area requiring sealing in the circumferential direction of the sidewall portion can be reduced. Correspondingly, the sealing body portion of the sealing component is disposed between the sidewall portion and the valve core, and the sealing body portion has a through hole communicating with the first communication port. The through hole is arranged along the height direction and circumferential direction of the sealing component, and two through holes are arranged along the circumferential direction of the sealing component. At this time, the arc length of the sealing component can be relatively reduced. By setting the central angle corresponding to the arc length of the sealing component to be greater than or equal to 100 degrees and less than or equal to 180 degrees, compared to the central angle corresponding to the arc length of the sealing component being greater than 180 degrees, the arc length of the sealing component in the embodiment of the present invention is smaller, which can reduce the manufacturing difficulty of the product mold, reduce the manufacturing cost of the sealing component and the control valve, and achieve the sealing performance of the control valve. Attached Figure Description

[0007] Figure 1 This is an exploded structural diagram of a control valve provided in one embodiment of the present invention;

[0008] Figure 2 yes Figure 1 The diagram shows a partial cross-sectional view of the control valve at one of its locations.

[0009] Figure 3 yes Figure 1 The diagram shows a partial cross-sectional view of the control valve at another location.

[0010] Figure 4 This is a schematic diagram of the valve body provided in one embodiment of the present invention;

[0011] Figure 5 This is a partial cross-sectional view of a valve body and sealing component assembly structure at one location according to an embodiment of the present invention;

[0012] Figure 6 This is a schematic diagram of the structure of a sealing component provided in one embodiment of the present invention;

[0013] Figure 7 yes Figure 6 The diagram shows a partial cross-sectional view of the sealing component and its fit with the valve body.

[0014] Figure 8 yes Figure 1 The diagram shows a front view of the control valve.

[0015] Figure 9 yes Figure 8 A schematic diagram of the cross-sectional structure along the AA direction;

[0016] Figure 10 yes Figure 9 A magnified structural diagram at position Q1;

[0017] Figure 11 This is a schematic diagram of the valve body provided in another embodiment of the present invention;

[0018] Figure 12 This is a schematic diagram of the structure of a balanced sealing block provided in one embodiment of the present invention;

[0019] Figure 13 This is a partial cross-sectional view of the valve body and sealing component assembly structure provided in one embodiment of the present invention at another location;

[0020] Figure 14 This is a schematic diagram of the valve core provided in one embodiment of the present invention;

[0021] Figure 15 yes Figure 14 A cross-sectional structural diagram of the valve core is provided. Detailed Implementation

[0022] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0023] like Figures 1 to 3 As shown, this embodiment of the invention provides a control valve 1, including a valve body 10, a valve core 20, and a sealing component 41. The valve body 10 includes a side wall portion 11, and the control valve 1 has a valve cavity 101. The side wall portion 11 is the peripheral wall of the valve cavity 101 or at least a part of the peripheral wall. The valve core 20 is rotatable under a drive. The control valve 1 may also include a drive device 50 and a sealing ring 43. The drive device 50 includes a drive component, which may be a motor or a motor and a reduction gear set. The valve core 20 is rotatable under the drive of the drive component within the drive device 50. At least a portion of the sealing component 41 is located between the valve core 20 and the side wall portion 11. Figure 1 In the valve body 10, a bottom wall portion 12 and a top wall portion 13 are also included. The bottom wall portion 12, the top wall portion 13, and the side wall portion 11 enclose a valve cavity 101. A sealing ring 43 is located between the top wall portion 13 and the valve core 20. At least a portion of the side wall portion 11 is located between the bottom wall portion 12 and the top wall portion 13. One of the bottom wall portion 12 and the top wall portion 13 is integrally formed with the side wall portion 11, and the other is sealed to the side wall portion 11, for example, in... Figure 1 In the valve body 10, the top wall 13 and the side wall 11 are integrally formed. The bottom wall 12 is fixedly connected to the side wall 11 by welding and is sealed to prevent fluid leakage. The sealing ring 43 is located between the top wall 13 and the valve core 20. During assembly, the valve core 20 is assembled from the bottom to the top of the valve body 10, which reduces the deformation of the sealing ring 43 and improves its sealing performance. The control valve 1 includes at least five channels 30. The side wall 11 has at least five connecting ports that communicate with the valve cavity 101. One end of each channel 30 penetrates the side wall 11 to form a connecting port, and the other end of each channel 30 forms a valve port 102 of the control valve 1, through which fluid can enter or leave the control valve 1.

[0024] To facilitate the assembly of control valve 1 with other components in the fluid control system and improve the integration of control valve 1 with other components, in some embodiments, such as Figures 1 to 3 The valve body 10 also includes a mounting portion 14, which is fixedly connected to the side wall portion 11 and located on the side of the side wall portion 11 away from the valve cavity 101. For example, the mounting portion 14 and the side wall portion 11 can be integrally formed. The mounting portion 14 has a mounting plane 141, and the valve port 102 of the control valve 1 passes through the mounting plane 141, so that the valve ports 102 of the control valve 1 are all arranged on the mounting plane 141 and the orientation of each valve port 102 is the same. This can relatively simplify the assembly steps of the control valve 1 with other components and reduce leakage points in the connection parts, thereby increasing the reliability of the seal. In some embodiments, the sealing member 41 has an arc-shaped cross-section along the direction perpendicular to its height. The sealing member 41 includes a sealing body portion 410 located between the valve core 20 and the sidewall portion 11. The inner surface of the sealing body portion 410 contacts the valve core 20, and the outer surface of the sealing body portion 410 contacts the sidewall portion 11. A communication port 311 is defined as the communication port 311 in the area of ​​the sidewall portion 11 in contact with the sealing body portion 410. The communication port 102 communicating with the first communication port 311 is arranged in an array along the height direction of the sidewall portion 11 and perpendicular to its height direction. Figure 2 The mounting plane 141 of the mounting part 14 has a roughly rectangular structure. The length direction of the mounting plane 141 is parallel to the height direction of the side wall part 11. At this time, the valve port 102 connected to the first communication port 311 is arranged in an array along the length and width directions of the mounting plane 141.

[0025] like Figures 2 to 4 As shown, the connecting ports on the side wall portion 11 include a first connecting port 311. The first connecting ports 311 are arranged along the height direction and the circumferential direction of the side wall portion 11. Along the circumferential direction of the side wall portion 11, there are two first connecting ports 311 arranged on the side wall portion 11, as shown. Figure 2 and Figure 4 As shown, in this embodiment, the sidewall portion 11 has eight first communication ports 311. Along the height direction of the sidewall portion 11, the sidewall portion 11 has four rows of first communication ports 311, with two first communication ports 311 in each row. Correspondingly, the control valve 1 has eight first valve ports 312 that correspond one-to-one with and are connected to the first communication ports 311; as Figure 3 , 5 to Figure 7 As shown, the sealing component 41 has an arc-shaped cross-section. When the sealing component 41 includes a sealing body portion 410, the sealing body portion 410 is located between the valve core 20 and the side wall portion 11. The sealing body portion 410 has through holes 411 penetrating the sealing component 41. The number of through holes 411 is the same as the number of first connecting ports 311, and they are correspondingly connected. The through holes 411 are arranged along the height direction of the sealing component 41 and the circumferential direction of the sealing body portion 410. Along the circumferential direction of the sealing body portion 410, the sealing body portion 410 has two through holes 411. In this embodiment, the sealing body portion 410 has eight There are two through holes 411 along the height direction of the sealing body 410. The sealing body 410 has four rows of through holes 411, with two through holes 411 in each row. The inner surface of the sealing body 410 is an arc surface, which contacts the valve core 20. The central angle corresponding to the arc surface of the sealing body 410 is defined as α. Then α is greater than 100 degrees and less than or equal to 180 degrees. Optionally, α is greater than 100 degrees and less than or equal to 110 degrees. Through the above settings, the manufacturing difficulty of the mold for manufacturing the sealing component can be reduced, thereby reducing the manufacturing difficulty of the sealing component 41 and reducing the manufacturing cost of the sealing component 41.

[0026] like Figure 7As shown, in some embodiments, on a cross-section perpendicular to the height direction of the sidewall portion 11, the maximum central angle formed by the edges of the two circumferentially arranged first connecting ports 311 and the center of the sidewall portion 11 is defined as β, where β = 90°. Correspondingly, on a cross-section perpendicular to the height direction of the sealing member 41, the maximum central angle formed by the centers of the two through holes 411 of the sealing member 41 and the arc surface of the sealing member 41 is 90 degrees. During the operation of the control valve 1, due to the control accuracy of the drive component, the delay in signal transmission, or the rotational inertia of the valve core 20, the valve core has a rotational tolerance. The angle of the rotational tolerance is defined as θ, then α ≥ β + 2θ. Optionally, the rotational tolerance angle of the valve core component 20 can be ±5 degrees. That is, when the driving component stops driving the valve core 20 to rotate, due to the control accuracy of the driving component, the delay in signal transmission, or the influence of the rotational inertia of the valve core 20, the valve core 20 may stop rotating 5 degrees before the set angle or continue to rotate 5 degrees after exceeding the set angle, thereby causing the valve core 20 to have a rotational tolerance. In order to ensure that the sealing component 41 can contact the valve core 20 in all stroke ranges of the valve core 20 rotation, so that the sealing component 41 has good sealing performance, and at the same time, the sealing component 41 has a large expansion space and low manufacturing difficulty, in some embodiments, the central angle α corresponding to the arc surface of the sealing body part 410 is 100 degrees.

[0027] In order to stably confine the sealing component 41 within the valve cavity 101 of the valve body 10, such as Figures 7 to 11 As shown, in some embodiments, the sealing member 41 further includes limiting portions 414 located at both circumferential ends of the sealing body portion 410. The limiting portions 414 have limiting surfaces 4141 connected between the inner and outer surfaces of the sealing member 41. The valve body 10 also includes a stop portion 15, such as... Figure 9 and Figure 10 As shown, the stop portion 15 is part of the side wall portion 11, or as... Figure 11 As shown, the stop portion 15 can be fixedly connected to the side wall portion 11 and is located within the valve cavity 101. The stop portion 15 has a stop surface 151, which can extend along the radial direction of the side wall portion 11 or extend at an angle to the radial direction. The stop surface 151 is located within the valve cavity 101, and the limiting surface 4141 and the stop surface 151 are in contact. Through the above arrangement, the limiting surface 4141 and the stop surface 151 cooperate with each other to prevent the rotation of the sealing member 41 and improve the sealing performance of the sealing member 41.

[0028] Because the cross-section of the sealing component 41 is arc-shaped, the valve core 20 is prone to eccentricity during the process of the valve core 20 pressing the sealing component 41. (See [reference needed]) Figure 9In some embodiments, the control valve 1 further includes a balancing sealing block 42, which is located between the side wall portion 11 and the valve core 20. The balancing sealing block 42 and the sealing component 41 are respectively disposed on both sides of the valve core 20 in the radial direction. The surface of the balancing sealing block 42 facing the valve core 20 is an arc surface. The axis of the arc surface of the balancing sealing block 42 coincides with the axis of the inner surface of the sealing body portion 410, and their radii are equal. Optionally, the height of the balancing sealing block 42 can be equal to the height of the sealing component 41. Along the height direction of the valve core 20, the contact height between the sealing component 41 and the valve core 10 is equal to the contact height between the balancing sealing block 42 and the valve core 20. Through the above arrangement, the balancing sealing block 42 and the sealing component 41 can generate forces of the same magnitude but opposite directions on the valve core 20, which can keep the valve core 20 coaxial with the side wall portion 11, improve the stability of the rotation of the valve core 20, prevent the valve core 20 from being eccentric and causing fluid leakage, improve the sealing performance of the control valve 1, and improve the stability of the control valve 1 in controlling the fluid.

[0029] To ensure that the valve core 20 rotates stably under a relatively small driving force, such as Figures 5 to 7 As shown, in some embodiments, the sealing component 41 includes a first elastic pad 412 and a first sealing element 413 fixedly connected. The first elastic pad 412 is located between the first sealing element 413 and the side wall portion 11, and the first sealing element 413 is located between the first elastic pad 412 and the valve core 20 and is in contact with the valve core 20. The main material of the first sealing element 413 can be Teflon. For example, the first sealing element 413 can be formed by processing Teflon. The first elastic pad 412 can be made of rubber. The first elastic pad 412 and the first sealing element 413 are bonded together to form an integral structure. At this time, the surface roughness of the first sealing element 412 facing the valve core 20 is less than the surface of the first elastic pad 412 away from the valve core 20. By setting the main material of the first sealing element 412 to be Teflon, the first sealing element 412 can not only play a sealing role, but also have a certain lubrication performance, which can reduce the friction between the valve core 20 and the sealing component 41, thereby relatively reducing the driving force of the control valve 1. The first elastic pad 421 includes a main body and a protrusion. The protrusion contacts the side wall 11. The protrusion may include a plurality of intersecting axial protrusions and circumferential protrusions. The axial protrusions extend along the height direction of the first elastic pad 421, and the circumferential protrusions extend along the circumferential direction of the first elastic pad 421. By providing a plurality of protrusions, the compression deformation of the sealing component can be increased, thereby improving the sealing performance of the sealing component 41.

[0030] Based on this Figure 9 and Figure 12The balancing sealing block 42 may include a second elastic pad 423 and a second sealing element 424 fixedly connected. The second elastic pad 423 is located between the second sealing element 424 and the side wall portion 11, and the second sealing element 424 is located between the second elastic pad 423 and the valve core 20 and is in contact with the valve core 20. The main material of the second sealing element 424 may be Teflon. For example, the second sealing element 424 may be formed by processing Teflon. The second elastic pad 423 may be made of rubber. The second elastic pad 423 and the second sealing element 424 are bonded together to form an integral structure. At this time, the surface roughness of the second sealing element 424 facing the valve core 20 is less than the surface of the second elastic pad 423 facing away from the valve core 20. By setting the main material of the second sealing element 424 to be Teflon, the second sealing element 424 can not only play a sealing role, but also have a certain lubrication performance, which can reduce the friction between the valve core 20 and the sealing component 41, thereby relatively reducing the driving force of the control valve 1.

[0031] To ensure that the balance sealing block 42 is stably confined within the valve cavity 101, such as Figures 9 to 12 As shown, in some embodiments, along the radial direction of the sidewall portion 11, the valve body 10 has a receiving cavity 152 and an opening 153. The receiving cavity 152 communicates with the valve cavity 101 through the opening 153. The cross-sectional area of ​​the receiving cavity 152 is larger than the cross-sectional area of ​​the opening 153. The balancing sealing block 42 includes a first part 421 and a second part 422 fixedly connected to each other. The cross-sectional area of ​​the first part 421 is larger than the cross-sectional area of ​​the second part 422. The first part 421 is located in the receiving cavity 152, and the second part 422 is located between the valve core 20 and the first part 421. At this time, the second part 422 passes through the opening 153 and contacts the valve core 20. It can be understood that the cross-section is the cross-section obtained by cutting the control valve 1 along the height direction perpendicular to the height of the balancing sealing block 42 or along the height direction perpendicular to the sidewall portion 11. With the above arrangement, the balancing sealing block 42 can be confined within the receiving cavity 152, which facilitates the installation of the balancing sealing block 42. When the balance sealing block 42 includes a second elastic pad 423 and a second seal 424, the first part 421 can be the second elastic pad 423, the second part 422 can be the second seal 424, or the first part 421 can be a structure formed by a portion of the second elastic pad 423 and the second seal 424, and the second part 422 can be a structure formed by another portion of the second seal 424.

[0032] Further reading Figures 1 to 3 , Figure 9 as well as Figures 13 to 15In some embodiments, the communication port of the side wall portion 11 further includes a second communication port 321. The second communication port 321 is located at one end of the side wall portion 11 in the height direction and is disposed away from the sealing component 41. The valve core 20 has a columnar structure and includes a top plate 201, a bottom plate 202, an internal guiding cavity 21, a plurality of external guiding cavities 22, a first partition 23 and a second partition 24. Along the height direction of the valve core 20, the plurality of external guiding cavities 22, the first partition 23 and the second partition 24 are located between the top plate 201 and the bottom plate 202, and the internal guiding cavity 21 is located between the top plate 201 and the bottom plate 202 and penetrates the bottom plate 202. At least a portion of the external conductive cavities 22 are distributed on the outer periphery of the internal conductive cavity 21. A first partition 23 is located between the internal conductive cavity 21 and the external conductive cavities 22, and a second partition 24 is located between two adjacent external conductive cavities 22. The first partition 23 has a channel 231 through which the internal conductive cavity 21 communicates with a portion of the external conductive cavities 22. At this time, the second communication port 321 communicates with the internal conductive cavity 21 through the valve cavity 101, and the first communication port 311 communicates with the sealing body 410. The through-hole 411 communicates with the external conductive cavity 22, and each external conductive cavity 22 is divided into an independent space by the second partition 24. The rotary valve core 20 can open or close two valve ports corresponding to the external conductive cavity 22 through one external conductive cavity 22, and / or, the rotary valve core 20 can open or close two corresponding valve ports through the internal conductive cavity 21, the channel 231, and the external conductive cavity 22, one of which corresponds to the internal conductive cavity 21 and the other to the external conductive cavity 22. With the above configuration, one control valve 1 can control multiple flow paths, which is more convenient and compact in use.

[0033] like Figure 13As shown, in order to limit the sealing component 41, in some embodiments, the top wall portion 13 and the side wall portion 11 of the valve body 10 are injection molded as an integral structure. In this case, the valve body 10 also includes a protrusion 16, which protrudes from the top wall portion 13 and is located in the valve cavity. The protrusion 16 has a first limiting groove, the opening of which communicates with the valve cavity. A portion of the inner surface of the side wall portion 11 can form the groove wall of the first limiting groove. One end of the sealing component 41 in the height direction is located in this gap, thereby limiting the assembly position of the sealing component 41. In this case, the width of the first limiting groove can be greater than or equal to the thickness of the sealing component 41 in the radial direction. To enhance the strength of the valve body 10, multiple connecting ribs can be provided on the top wall portion 13. The connecting ribs are arranged radially along the top wall portion 13, or a ring of connecting ribs extending circumferentially can be provided on the top wall portion 13, thereby improving the structural strength of the top wall portion 13. Optionally, in order to limit the position of the balance sealing block 42, the protrusion 16 may also include a second limiting groove. The opening of the second limiting groove is connected to the valve cavity. One end of the balance sealing block 42 in the height direction is located in the second limiting groove. The width of the second limiting groove may be greater than or equal to the thickness of the balance sealing block 42 in the radial direction.

[0034] Please refer to further information. Figures 1 to 3 When the connecting port also includes a second connecting port 321 and the valve body includes a mounting portion 14, the second connecting port 321 is located at one end of the side wall portion 11 in the height direction and on the side away from the sealing member 41. The mounting portion 14 has a mounting plane 141. On the mounting plane 141, the valve port 102 communicating with the first connecting port 311 and the valve port 102 communicating with the second connecting port 321 are both rectangular and have equal cross-sectional areas. With the above arrangement, the fluid flow rate through each valve port 102 can be made to approximate.

[0035] The valve port 102 connected to the first communication port 311 is defined as the first valve port 312, and the valve port 102 connected to the second communication port 321 is defined as the second valve port 322. On the mounting plane 141, the length of the second valve port 322 is greater than twice the length of the first valve port 312. The mounting portion 14 of the valve body 10 may also include a reinforcing rib 142, which extends along the width direction of the second valve port 322 and connects between two opposing surfaces of the second valve port 322. Through the above arrangement, the strength of the control valve 1 at each valve port 102 can be improved, thereby improving the quality of the control valve 1.

[0036] In summary, according to the embodiment of the present invention, the control valve 1 includes a sidewall portion 11, which has a first communication port 311. The first communication ports 311 are arranged along the height direction and the circumferential direction of the sidewall portion 11, and there are two first communication ports 311 arranged along the circumferential direction of the sidewall portion 11. Compared with arranging all the first communication ports 311 along the circumferential direction of the sidewall portion 11, the area that needs to be sealed in the circumferential direction of the sidewall portion 11 can be reduced. Correspondingly, the sealing body portion 410 of the sealing member 41 is disposed between the sidewall portion 11 and the valve core 20, and the sealing body portion 410 has a connection with the first communication port 311. 11 Through holes 411 are connected and arranged along the height and circumference of the sealing component 41. There are two through holes 411 arranged along the circumference of the sealing component 41. At this time, the arc length of the sealing component 41 can be relatively reduced. By setting the central angle corresponding to the arc length of the sealing component 41 to be greater than or equal to 90 degrees and less than or equal to 180 degrees, compared with the central angle corresponding to the arc length of the sealing component being greater than 180 degrees, the arc length of the sealing component 41 in this embodiment of the invention is smaller, which can reduce the manufacturing difficulty of the product mold, reduce the manufacturing cost of the sealing component 41 and the control valve 1, and achieve the sealing performance of the control valve 1, which is convenient for promotion and application.

[0037] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. For example, the directional definitions such as "front", "back", "left", "right", "up", and "down" are used. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify, combine or make equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A control valve comprising a valve body, a valve core, and a sealing component, wherein the valve body includes a side wall portion, the control valve has a valve cavity, the side wall portion being a peripheral wall of the valve cavity or at least a portion thereof, the valve core being rotatable upon actuation, and at least a portion of the sealing component being located between the valve core and the side wall portion, characterized in that, The control valve includes at least five channels, and the sidewall portion has at least five communication ports. One end of each channel extends through the sidewall portion to form the communication port, and the other end of each channel forms the valve port of the control valve. The communication port includes a first communication port, which is arranged along the height direction and circumferential direction of the side wall portion. Two rows of the first communication ports are arranged along the circumferential direction of the side wall portion. The sealing component includes a sealing body portion located between the valve core and the side wall portion. The sealing body portion has through holes penetrating the sealing component. The number of through holes is the same as the number of the first communication ports, and they are correspondingly connected. The through holes are arranged along the height direction and circumferential direction of the sealing body portion. Two rows of the through holes are arranged along the circumferential direction of the sealing body portion. The inner surface of the sealing body portion is an arc surface, and the central angle corresponding to the arc surface of the sealing body portion is greater than 100 degrees and less than or equal to 180 degrees.

2. The control valve according to claim 1, characterized in that, On a cross-section perpendicular to the height of the sidewall portion, the maximum central angle formed by the edges of the two circumferentially arranged first connecting openings and the center of the sidewall portion is 90 degrees. On a cross section perpendicular to the height of the sealing component, the maximum central angle formed by the center of the two through holes of the sealing component and the center of the arc surface of the sealing component is 90 degrees, and the central angle corresponding to the arc surface of the sealing body is 100 degrees.

3. The control valve according to claim 1, characterized in that, The sealing component further includes limiting portions located at both circumferential ends of the sealing body portion. Each limiting portion has a limiting surface that connects the inner and outer surfaces of the sealing component. The valve body further includes a stop portion, which is fixedly connected to the side wall portion or is part of the side wall portion. The stop portion has stop surfaces located at both ends of the stop portion in the circumferential direction. The stop surfaces are located in the valve cavity, and the limiting surface and the stop surfaces are in contact.

4. The control valve according to claim 3, characterized in that, The control valve further includes a balancing sealing block located between the side wall portion and the valve core. The balancing sealing block and the sealing component are respectively disposed on both sides of the valve core in the radial direction. The surface of the balancing sealing block facing the valve core is an arc surface, and the axis of the arc surface of the balancing sealing block coincides with the axis of the inner surface of the sealing body portion, and the two have equal radii. The valve core is coaxially arranged with the side wall portion.

5. The control valve according to claim 4, characterized in that, The sealing component includes a first elastic pad and a first sealing member fixedly connected. The first elastic pad is located between the first sealing member and the side wall portion. The first sealing member is located between the first elastic pad and the valve core and is in contact with the valve core. The roughness of the surface of the first sealing member facing the valve core is less than that of the surface of the first elastic pad facing away from the valve core. The balancing sealing block includes a second elastic pad and a second sealing member that are fixedly connected. The second elastic pad is located between the second sealing member and the side wall portion. The second sealing member is located between the second elastic pad and the valve core and is in contact with the valve core. The surface roughness of the second sealing member facing the valve core is less than the surface roughness of the second elastic pad facing away from the valve core.

6. The control valve according to claim 4, characterized in that, Along the radial direction of the sidewall portion, the valve body has a receiving cavity and an opening, the receiving cavity communicating with the valve cavity through the opening, and the cross-sectional area of ​​the receiving cavity being larger than the cross-sectional area of ​​the opening. The balancing sealing block protrudes from the opening. The balancing sealing block includes a first part and a second part that are fixedly connected to each other. The cross-sectional area of ​​the first part is larger than the cross-sectional area of ​​the opening. The first part is located in the receiving cavity, and the second part passes through the opening and contacts the valve core.

7. The control valve according to any one of claims 1 to 6, characterized in that, The communication port further includes a second communication port, which is located at one end of the side wall portion in the height direction. The valve core includes an internal conducting cavity and an external conducting cavity, the external conducting cavity being located on the outer periphery of the internal conducting cavity. The valve core includes a first partition plate located between the internal and external conducting cavities. The first partition plate has a channel through which the internal conducting cavity communicates with the external conducting cavity. The first communication port is connected to the external conductive cavity through the through hole of the sealing body, and the second communication port is connected to the external conductive cavity through the valve cavity, the internal conductive cavity, and the channel.

8. The control valve according to any one of claims 1 to 5, characterized in that, The valve body further includes a mounting portion, which is fixedly connected to the side wall portion and located on the side of the side wall portion opposite to the valve cavity. The mounting portion includes a mounting plane, the passage of the control valve passes through the mounting portion, and the valve port is located on the mounting plane. The valve ports that communicate with the first communication port are arranged in an array along the height direction of the side wall and perpendicular to the height direction of the side wall.

9. The control valve according to claim 8, characterized in that, The communication port further includes a second communication port, which is located at one end of the side wall portion in the height direction. On the mounting plane, the valve port connected to the first communication port and the valve port connected to the second communication port are both rectangular and have the same cross-sectional area.

10. The control valve according to claim 9, characterized in that, The valve port connected to the first communication port is defined as the first port, and the valve port connected to the second communication port is defined as the second port. On the mounting plane, the length of the second port is greater than twice the length of the first port. The mounting portion includes a reinforcing rib that extends along the width direction of the second port and connects between two surfaces opposite to each other at the second port.

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