A control valve

Abstract

The application discloses a control valve (200) comprising a sealing component (40) which comprises an elastic pad (41) and a sealing piece (42) in an integrated structure, the control valve has a rotation restraining part which is integrally formed with or fixedly connected or positionally connected with an inner surface of a valve body component (10), the rotation restraining part cooperates with the sealing component to prevent the elastic pad from rotating relative to a side wall part (12) and prevent the sealing component from moving relative to the side wall part, and the structure is relatively simple and convenient to install.

Description

[0001] This application claims priority to Chinese Patent Application No. 202110065261.1, filed on January 18, 2021, entitled "A Control Valve", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of fluid control, and more specifically to a control valve. Background Technology

[0003] Some systems require multi-pass control valves to control flow paths, such as motor vehicles. Currently, multiple control valves are generally used for control. In a multi-pass control valve, a split-structure seal and elastic gasket are used to achieve sealing and sliding fit with the valve core. Summary of the Invention

[0004] To provide a control valve, the present invention provides the following technical solution:

[0005] A control valve includes a valve body component and a valve core component. The control valve has a valve cavity, with the valve core component located at least partially within the valve cavity and capable of rotation. The valve body component includes a side wall portion, which is the peripheral wall of the valve cavity or at least a portion of the peripheral wall. The valve body component has a communication port. The control valve also includes a sealing component located between the side wall portion and the valve core component. The sealing component includes an elastic gasket and a sealing element, which are fixedly integrated to form an integral structure. The elastic gasket is located between the sealing element and the side wall portion of the valve body component. The sealing element contacts the valve core component, and the surface of the sealing element in contact with the valve core component is smoother than the surface of the elastic gasket in contact with the side wall portion. The control valve has a rotation-restraining portion, which is integrally formed, fixedly connected, or limit-connected to the inner surface of the valve body component. The rotation-restraining portion cooperates with the sealing component to restrict clockwise or counterclockwise rotation of the sealing component relative to the valve body component.

[0006] The sealing components of this control valve include an integrally formed elastic gasket and a seal. The surface of the seal that contacts the valve core component is smoother than the surface of the elastic gasket that contacts the sidewall. The control valve has a rotation-resisting part, which is integrally formed, fixedly connected, or limit-connected to the inner surface of the valve body component. The rotation-resisting part cooperates with the sealing component to restrict the clockwise or counterclockwise rotation of the sealing component relative to the valve body component. It can prevent the elastic gasket from rotating relative to the sidewall and prevent the sealing component from moving relative to the sidewall. The structure is relatively simple and the installation is relatively convenient. Attached Figure Description

[0007] Figure 1 This is an exploded structural diagram of a control valve according to this application;

[0008] Figure 2 This is a three-dimensional structural schematic diagram of the sealing component according to the first embodiment of this application;

[0009] Figure 3 This is a three-dimensional structural schematic diagram of the valve body component according to the first embodiment of this application;

[0010] Figure 4 yes Figure 3 A partial cross-sectional structural schematic diagram of the valve body component;

[0011] Figure 5 yes Figure 4 A magnified schematic diagram of the local structure at point I;

[0012] Figure 6 yes Figure 2 A schematic diagram of a partial cross-sectional structure of the sealing component;

[0013] Figure 7 This is a three-dimensional structural schematic diagram of the sealing component according to the second embodiment of this application;

[0014] Figure 8 This is a three-dimensional structural schematic diagram of the valve body component according to the second embodiment of this application;

[0015] Figure 9 This is a three-dimensional structural diagram of the cover of the control valve in this application. Detailed Implementation

[0016] The technical solution will be described below with reference to specific implementation methods, such as... Figures 1 to 5As shown, the control valve 200 includes a valve body component 10, a valve core component 20, a drive housing 30, and a sealing component 40; the control valve has a valve cavity 102; the valve core component 20 can rotate under the drive of a drive component in the drive housing, such as a motor or a motor and a reduction gear set; the valve body component 10 includes a side wall portion 12 and a cover 50, which are fixedly connected. The side wall portion 12 is the peripheral wall of the valve cavity or at least a part of the peripheral wall, and the valve body component 10 has a connecting hole 101. The number of connecting holes 101 can be multiple, for example, in this embodiment, there are 5 connecting holes 101, but it can also be greater than or less than 5. A sealing component 40 is located between the side wall portion 12 and the valve core component 20. The sealing component 40 includes an elastic pad 41 and a sealing element 42, which are fixedly connected. The elastic pad 41 is located between the sealing element 42 and the side wall portion 12 of the valve body component 10. The sealing element 42 contacts the valve core component 20. The surface of the sealing element in contact with the valve core component is smoother than the surface of the elastic pad in contact with the side wall portion. The control valve has a rotation-resisting part, which is integrally formed with, fixedly connected to, or limited by the inner surface of the valve body component. The rotation-resisting part cooperates with the sealing component to restrict the clockwise or counterclockwise rotation of the sealing component relative to the valve body component. The force between the sealing element 42 and the valve core component 20 includes sliding friction, and the force between the elastic pad 41 and the side wall portion 12 is static friction. The rotation-resisting part restricts the rotation of the sealing component 40 relative to the side wall portion 12. The elastic pad 41 and the sealing element 42 can be fixed together by adhesive bonding. The material of the seal 42 can be Teflon. The seal 42 not only plays a sealing role, but also has a certain lubrication performance, which can reduce the friction between the valve core component and the sealing component, thereby relatively reducing the driving force of the control valve.

[0017] like Figure 2 As shown, the elastic pad 41 has a first through hole 411, a first groove 412, and a second groove 413. The first through hole 411 is connected to the connecting hole 101. The openings of the first groove 412 and the second groove 413 face the side wall portion 12. The first groove 412 may extend from one end of the elastic pad 41 to the other end in the longitudinal direction of the elastic pad 41. There are multiple first grooves 412. In this embodiment, the first grooves 412 are distributed on both sides of the first through hole 411, and the first groove 412 located between two adjacent first through holes 411 may be located in the middle part of the portion between two adjacent first through holes 411. The first groove 412 may be axially arranged, and the second groove 413 may be circumferentially arranged or in other forms. The second groove 413 can provide expansion space for the elastic pad 41 when it is compressed. In this embodiment, the second groove 413 is located on at least one side in the longitudinal direction of the elastic pad 41, and the first groove 412 is connected to the second groove 413.

[0018] like Figure 3 As shown, the valve body component 10 has a rib 123 protruding from the side wall portion 12. In this embodiment, the rib 123 protrudes from the side wall portion 12.

[0019] The number of protruding ribs 123 corresponds to the number of first grooves 412. The protruding ribs 123 extend into the first grooves 412, and the protruding ribs 123 and the first grooves 412 are interference-fitted. By setting the protruding ribs 123 and the first grooves 412, not only can the sealing component 40 be positioned and installed so that the position of the first through hole 411 corresponds to the position of the connecting hole 101 to conduct fluid, but the way the protruding ribs 123 and the first grooves 412 cooperate can also limit the sealing component 40, preventing the sealing component 40 from shifting when the valve core component rotates. In this embodiment, the anti-rotation part includes the protruding ribs 123 and the first grooves 412. In this embodiment, the height of the rib 123 protruding from the side wall portion 12 is less than the depth of the first groove 412, which allows for a certain gap between the rib 123 and the bottom of the first groove 412. This allows the elastic pad 41 to abut against the side wall portion 12, and the gap between the rib 123 and the bottom of the first groove 412 allows for expansion space when the elastic pad undergoes elastic deformation.

[0020] like Figures 3 to 5 As shown, the valve body component 10 also includes a bottom wall 11 and a boss portion 124. The bottom wall 11 is integrally formed with the side wall portion 12. The boss portion 124 protrudes from the bottom wall 11 and includes a blocking portion 125 and a first support portion 126. The blocking portion 125 protrudes from the first support portion 126 by a certain distance. At least a portion of the first support portion 126 is located between the rib 123 and the blocking portion 125, forming a limiting space 127 between the blocking portion 125 and the rib 123. After the sealing component 40 is installed into the valve body component 10, one end of the sealing component 40 is accommodated in the limiting space 127. The sealing component 40 has a first notch portion 46, which is located on the end face of the sealing component and extends into the interior of the sealing component 40. The first support portion 126 extends into the first notch portion 46 and abuts against the sealing component 40. By providing the boss portion 124, the end of the sealing component 40 can be limited, preventing the end of the sealing component 40 from separating from the valve body component 10. The anti-rotation part may also include a first support part 126 extending into the first notch part 46 and abutting against the sealing member 40.

[0021] like Figure 2 and Figure 6As shown, the sealing element 42 includes a limiting part 422, a mating part 423, a flanged part 424, and a connecting part 425. The mating part 423 slides in engagement with the valve core component 20. The two limiting parts 422 are located on both sides of the circumference of the sealing element 42. The limiting parts 422 have an outward protruding structure or an outward-flaring structure, which can further limit the two sides of the elastic pad 41 and limit the deformation range of the elastic pad 41 after compression. In this embodiment, due to the limiting method of the rib 123 and the first groove 412 engaging, the limiting parts 422 are located on both sides of the elastic pad 41, and the height of the limiting parts is less than the thickness of the two sides of the elastic pad, which can leave room for the expansion of the elastic pad 41. Figure 3 The valve body component 10 has a stop portion 128, which protrudes from the side wall portion 12 and extends into the valve cavity 102. A limiting portion 422 contacts the side of the stop portion 128. Within the elastic range of the sealing member, the limiting portion 422 contacts the side of the stop portion 128, thereby restricting the rotation of the sealing member relative to the valve body component. The anti-rotation portion may also include the limiting portion 422 contacting the side of the stop portion 128.

[0022] The flanged portion 424 has a second through hole 421. At least a portion of the flanged portion 424 extends into the first through hole 411 and is bonded and fixed to the inner wall of the first through hole 411, thereby enabling the first through hole 411 to communicate with the second through hole 421. The height of the flanged portion 424 is less than the length of the first through hole 411. This prevents the seal 42 from contacting the second side wall portion 122 when the elastic pad 41 is compressed, allowing the elastic pad 41 to have more compression space.

[0023] In this embodiment, by providing the flanged portion 424, on the one hand, the contact area between the elastic pad 41 and the seal 42 is increased, which can improve the adhesion between the elastic pad 41 and the seal 42. On the other hand, by extending the flanged portion 424 into the first through hole 411, it can limit the seal 42 and the elastic pad 41, preventing the seal 42 and the elastic pad 41 from being misaligned when the valve core component rotates.

[0024] The connecting part 425 is located between the flanged part 424 and the mating part 423. The connecting part 425 smoothly connects the flanged part 424 and the mating part 423. In this embodiment, the diameter of the connecting part 425 and the mating part 423 gradually increases in the direction towards the valve core component. During the rotation of the valve core component, the connecting part 425 can play a buffering and guiding role.

[0025] Combination Figure 1 , Figure 3 , Figure 4 , Figure 8 as well as Figure 9The valve body component 10 has a first valve core support portion 1101 and a second valve core support portion 1102. The first valve core support portion 1101 protrudes from the bottom wall, and the second valve core support portion 1102 protrudes from the end face of the cover 50. A portion of the valve core component 20 extends into the first valve core support portion 1101, and another portion of the valve core component 20 extends into the second valve core support portion 1102. The valve core component 20 is rotatably supported on the first valve core support portion 1101 and the second valve core support portion 1102. Both the first valve core support portion 1101 and the second valve core support portion 1102 may include a notch portion and a rib portion. Taking the second valve core support portion 1102 as an example, the second valve core support portion 1102 includes a notch portion 112 and a rib portion 113. By providing the notch portion 112, impurities in the coolant entering the mating part 111 can be discharged in time, preventing the valve core component from jamming. The rib portion 113 can improve the strength of the second valve core support portion 1102 and reduce the impact of the notch portion 112 on the strength of the second valve core support portion 1102. Furthermore, the height of the second valve core support portion 1102 is greater than or equal to the height of the boss portion 124, which reduces the friction of the valve core component. Simultaneously, the boss portion 124 can prevent the sealing component 40 from detaching from the valve body 10 when deformed under pressure.

[0026] The cover 50 also includes a second support 51. One end face of the sealing member 40 is provided with a first notch 46 and one end face of the sealing member 40 is provided with a second notch 47. The first support 126 extends into the first notch 46 and abuts against the sealing member 40. The second support 51 extends into the second notch 47 and abuts against the sealing member 40, further limiting the sealing member 40.

[0027] Figure 7 This is a three-dimensional structural schematic diagram of the sealing component according to the second embodiment of this application; compared with the first embodiment, the main difference is that the sealing component 40 does not have a first groove 412. Figure 8 This is a three-dimensional structural diagram of the valve body component according to the second embodiment of this application; the main difference from the first embodiment is that the protruding rib 123 is not provided, combined with Figure 7 and Figure 8 The sealing member 40 is placed inside the valve body component. The limiting portion 422 of the sealing member 40 contacts the side of the stop portion 128. Within the elastic range of the sealing member, the limiting portion 422 contacts the side of the stop portion 128, which can restrict the rotation of the sealing member relative to the valve body component. Compared with the first embodiment, the structure is simplified and the assembly difficulty is reduced. Other similarities will not be described again.

[0028] In addition, in some embodiments, the first notch 46 and the second notch 47 may be omitted, and the first support 126 and the second support 51 may be omitted accordingly, further simplifying the structure and reducing assembly difficulty.

[0029] It should be noted that although this specification has described the present invention 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, and 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 component and a valve core component, the control valve having a valve cavity, the valve core component being at least substantially located in the valve cavity, the valve core component being rotatable under actuation; the valve body component including a side wall portion, the side wall portion being a peripheral wall of the valve cavity or at least a portion of the peripheral wall, the valve body component being provided with a communication port, characterized in that, The control valve further includes a sealing component located between the side wall portion and the valve core component. The sealing component includes an elastic gasket and a sealing element, which are fixed together to form an integral structure. The elastic gasket is located between the sealing element and the side wall portion of the valve body component. The sealing element contacts the valve core component, and the surface of the sealing element in contact with the valve core component is smoother than the surface of the elastic gasket in contact with the side wall portion. The control valve has a rotation-resisting part, which is integrally formed, fixedly connected, or limitedly connected to the inner surface of the valve body component. The rotation-resisting part cooperates with the sealing component to restrict the clockwise or counterclockwise rotation of the sealing component relative to the valve body component. The sealing element includes a flanged portion and a mating portion. The mating portion faces the valve core component and slides with the valve core component. The elastic pad has a first through hole that communicates with the communication port. The sealing element also has a second through hole that communicates with the communication port through the first through hole. The flanged portion forms the second through hole, and at least a portion of the flanged portion extends into the first through hole and is bonded and fixed to the inner wall of the first through hole.

2. The control valve according to claim 1, characterized in that: The sealing element is fixedly connected to the elastic pad, and the height of the flange is less than the length of the first through hole.

3. The control valve according to claim 2, characterized in that: The sealing element includes at least two limiting portions located on both sides of the sealing element. The limiting portions are in the form of an outward protrusion structure or an outward flare structure. The limiting portions are located on both sides of the elastic pad, and the height of the limiting portions is less than the thickness of the elastic pad on both sides. The valve body component has a stop portion. The stop portion protrudes from the side wall portion and extends into the valve cavity. The limiting portion contacts the side of the stop portion.

4. The control valve according to claim 3, characterized in that, The seal also includes a connecting portion located between the flange and the mating portion. The connecting portion smoothly connects the flange and the mating portion, and the diameter of the connecting portion and the mating portion gradually increases in the direction toward the valve core component.

5. The control valve according to any one of claims 1-4, characterized in that, The elastic pad has an axially extending first groove, and the valve body component has a rib protruding from the side wall portion. The rib extends into the first groove, and the height of the rib protruding from the side wall portion is less than the depth of the first groove.

6. The control valve according to claim 5, characterized in that, The elastic pad has a first through hole, and the first groove extends from one end of the elastic pad to the other end of the elastic pad in the longitudinal direction. There are multiple first grooves, which are distributed on both sides of the first through hole. The rib is interference-fitted with the first groove.

7. The control valve according to claim 6, characterized in that, The valve body component further includes a bottom wall and a boss portion. The bottom wall is integrally formed with the side wall portion. The boss portion protrudes from the bottom wall and extends into the valve cavity. The boss portion includes a blocking portion and a first support portion. The blocking portion protrudes from the first support portion by a set distance. The first support portion is located between the rib and the blocking portion. The rib is connected to the first support portion. A limiting space is formed between the blocking portion and the rib. One end of the sealing component is located in the limiting space, and the sealing component abuts against the first support portion.

8. The control valve according to claim 6, characterized in that, The valve body component further includes a bottom wall and a cover, the cover being fixedly connected to the side wall portion. The valve body component also includes a first valve core support portion protruding from the bottom wall. The cover includes a second valve core support portion protruding from the end face of the cover. A portion of the valve core component extends into the first valve core support portion, and another portion of the valve core component extends into the second valve core support portion. The valve core component is rotatably supported on the first valve core support portion and the second valve core support portion.

9. The control valve according to any one of claims 1 to 8, characterized in that, The elastic pad is made of rubber material, the valve body component is made of aluminum material or plastic material through injection molding, the valve core component is made of plastic material through injection molding, the sealing element is made of Teflon, and the elastic pad and the sealing element are fixed by adhesive bonding.

10. The control valve according to claim 9, characterized in that, The elastic pad has a first groove and a second groove, the first groove extending axially and the second groove being circumferentially arranged, the second groove being located on at least one side of the elastic pad, and the first groove communicating with the second groove.

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