Valve device and fluid control assembly

Abstract

A valve device and a fluid control assembly comprise a runner plate and a valve device, the valve device comprises a valve body, a sealing piece and a first limiting part, the first limiting part is fixedly connected with the valve body and located on one side of the sealing piece in the height direction of the valve device, a first direction is defined, and a second direction is defined in the height direction of the valve device. The first direction is the distribution direction of the sealing element relative to the first limiting part, the valve body is provided with a first opening, the part, located on one side of the first limiting part, of the valve body is a first shell part, the first shell part is located on the side, close to the first opening, of the first limiting part, and the outer diameter of the first shell part is decreased or unchanged in the first direction; one side of the sealing piece abuts against the first limiting part, and the other side of the sealing piece abuts against the second limiting part. The sealing piece is limited through the runner plate and the valve body, the sealing performance of the assembled fluid control assembly is improved, the first shell part can be directly demolded, the number of sliding blocks on a mold is reduced, the difficulty of the machining technology is reduced, and the machining cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a valve device and a fluid control component. Background Art

[0002] The existing valve has two upper and lower limit structures on the valve body to limit the axial movement of the seal. When the valve body is formed, the upper and lower limit structures will jam the mold, making it impossible to demould directly. The mold needs to be divided into at least two parts and moved out from the side to complete the demoulding work, which increases the difficulty and cost of the processing technology. Summary of the invention

[0003] The purpose of the present application is to provide a valve device and a fluid control component, wherein the structure of the valve body allows the valve body to be directly separated from the mold during molding, thereby reducing the difficulty of the processing technology and reducing the processing cost.

[0004] One embodiment of the present application provides a valve device, including a valve body, a sealing member, and a first limiting portion, wherein the first limiting portion is fixedly connected to the valve body, and along the height direction of the valve device, the first limiting portion is located on one side of the sealing member, defining a first direction, and along the height direction of the valve device, the first direction is the distribution direction of the sealing member relative to the first limiting portion, the valve body has a first opening, and the valve body located on one side of the first limiting portion is a first shell portion, and the first shell portion is located on a side of the first limiting portion close to the first opening, and along the first direction, the outer diameter of the first shell portion decreases or remains unchanged.

[0005] In the above technical solution, the outer diameter of the first shell portion decreases or remains unchanged along the first direction. After the valve body is formed, the first shell portion is demolded in the opposite direction of the first direction. Since the outer diameter of the first shell portion decreases or remains unchanged, that is, the maximum outer diameter of the first shell portion is located at the starting point of the movement, the movement of the first shell portion during the demolding process will not be restricted by the mold, thereby reducing the difficulty of the processing technology and reducing the processing cost.

[0006] An embodiment of the present application also provides a fluid control component, including a flow channel plate and a valve device, wherein the valve device is the above-mentioned valve device, and the flow channel plate includes a second limiting portion. Along the height direction of the valve device, the first limiting portion is located on one side of the seal, and the second limiting portion is located on the other side of the seal. Along the height direction of the valve device, one side of the seal abuts against the first limiting portion, and the other side of the seal abuts against the second limiting portion.

[0007] In the above technical scheme, along the height direction of the valve device, the seal abuts against the first limit part and the second limit part, and seals along the height direction of the valve, thereby limiting the radial flow of the fluid along the valve device and reducing the probability of radial leakage of the fluid along the valve device. The deformation degree of the seal is controlled by adjusting the distance between the first limit part and the second limit part. The greater the deformation degree of the seal, the better the sealing performance. The seal is limited by the flow channel plate and the valve body, thereby improving the sealing performance of the fluid control component after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional structural schematic diagram of an implementation mode of the fluid control component of the present application;

[0009] Figure 2 yes Figure 1 A schematic structural diagram of a direction of the fluid control assembly shown;

[0010] Figure 3 This is a schematic structural diagram of a first embodiment of the assembly of the valve device and the flow channel plate of the present application;

[0011] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the middle valve body;

[0012] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the middle valve body;

[0013] Figure 6 yes Figure 3 A schematic diagram of the structure of the first limiting part and the sealing member;

[0014] Figure 7 This is a schematic structural diagram of a second embodiment of the assembly of the valve device and the flow channel plate of the present application;

[0015] Figure 8 It is a structural schematic diagram of a third embodiment of the assembly of the valve device and the flow channel plate of the present application;

[0016] Fig. 9 It is a structural schematic diagram of a fourth embodiment of the assembly of the valve device and the flow channel plate of the present application;

[0017] Fig.10 It is a structural schematic diagram of a fifth embodiment of the assembly of the valve device and the flow channel plate of the present application;

[0018] Fig.11 yes Fig.10 A partial enlarged view of point A in the middle.

[0019] Description of reference numerals:

[0020] 11. channel plate; 12. mounting member; 13. valve body; 14. first limiting portion; 15. sealing member; 16. valve device; 17. first opening; 18. first shell portion; 19. second limiting portion; 20. end portion; 21. mounting groove; 22. positioning portion; 23. matching portion; 24. valve core; 25. chamber; 26. second opening; 27. third opening; 28. fourth opening; 29. ​​elastic member. DETAILED DESCRIPTION

[0021] Specific embodiments are now described in detail with reference to the accompanying drawings. In order to fully understand the present invention, numerous specific details are mentioned in the following detailed description, but those skilled in the art should understand that the specific components, devices and features illustrated in the accompanying drawings and described herein are only exemplary and should not be considered as limiting.

[0022] Reference Figure 1-Figure 11The figure shows an embodiment of a fluid control component, the fluid control component includes a flow channel plate 11 and a valve device 16, the flow channel plate 11 and the valve device 16 are installed in cooperation, the valve device 16 includes a valve body 13, a sealing member 15, and a first limiting portion 14, the first limiting portion 14 is fixedly connected to the valve body 13, it should be noted that the fixed connection mentioned here means that after the flow channel plate 11 and the valve body 13 are assembled, the valve body 13 and the first limiting portion 14 are fixed to each other along the height direction of the valve device 16, and the valve body 13 limits the first limiting portion 14. 14 is displaced relative to the valve body 13 along the height direction of the valve device 16, and before the flow channel plate 11 is assembled with the valve body 13, the first limiting portion 14 can be fixedly connected to the valve body 13, and the first limiting portion 14 can also move relative to the valve body 13 along the height direction of the valve device 16. Along the height direction of the valve device 16, the first limiting portion 14 is located on one side of the sealing member 15, and the first limiting portion 14 limits one side of the sealing member 15, limiting the sealing member 15 from moving along the height direction of the valve device 16 on one side of the first limiting portion 14. The valve body 13 is provided with a first opening 17, through which the fluid enters or flows out of the valve body 13. The valve body 13 located on one side of the first limiting portion 14 is a first shell 18, and the first shell 18 is located on the side of the first limiting portion 14 close to the first opening 17. Along the first direction, the outer diameter of the first shell 18 decreases or remains unchanged. During the demolding process after the valve body 13 is formed, the first shell 18 moves relative to the mold in the opposite direction of the first direction and then separates from the mold. Since the outer diameter of the first shell 18 decreases or remains unchanged, the inner diameter of the mold corresponding to the first shell 18 increases or remains unchanged. Therefore, during the demolding process, the mold will not restrict the first shell 18, so that the first shell 18 can be separated from the mold, and the mold does not need to be separated from the first shell 18 from both sides. Then, the slider for the forming part of the first shell 18 on the mold can be removed, thereby reducing the number of sliders of the overall mold, reducing the difficulty of the processing technology, and reducing the processing cost. Furthermore, since the mold of the first shell 18 is an integral whole, the joint molding of multiple molds will result in the presence of a parting line between the molds, and the first shell 18 is prone to protruding defects when being molded, which is not conducive to the sealing between the first shell 18 and the seal 15. Therefore, one mold will make the molding surface of the first shell 18 smoother after molding, and the sealing effect between the first shell 18 and the seal 15 is better. It should be noted that in the demolding process described here, the first shell 18 moves relative to the mold in the opposite direction of the first direction and then separates from the mold. The first shell 18 may move in the opposite direction of the first direction to separate from the mold, or the mold may move in the first direction to separate from the mold.

[0023] In this embodiment, the first limit portion 14 and the valve body 13 are an integral structure. Along the first direction, the outer diameter of the first limit portion 14 decreases or remains unchanged, and the outer diameter of the first shell portion 18 is not greater than the minimum outer diameter of the first limit portion 14. When the valve body 13 is demolded, the mold will not limit the first limit portion 14, and the first shell portion 18 can be directly separated from the mold. In other embodiments, the first limit portion 14 can also be fixed to the valve body 13 by processing, such as welding, riveting, and other processing methods.

[0024] The flow channel plate 11 includes a second limiting portion 19. Along the height direction of the valve device 16, the first limiting portion 14 is located on one side of the sealing member 15, and the second limiting portion 19 is located on the other side of the sealing member 15. The sealing member 15 is limited by the first limiting portion 14 and the second limiting portion 19 to limit the movement of the sealing member 15 along the height direction of the valve device 16. Along the height direction of the valve device 16, one side of the sealing member 15 abuts against the first limiting portion 14, and the other side of the sealing member 15 abuts against the second limiting portion 19, and the sealing member 15 is sealed along the height direction of the valve device 16 to limit the fluid. The radial flow along the valve device 16 reduces the probability of radial leakage of the fluid along the valve device 16, and the sealing member 15 is restricted by the flow channel plate 11 and the valve body 13. The distance between the first limit portion 14 and the second limit portion 19 is controlled by adjusting the relative movement distance between the flow channel plate 11 and the valve body 13 during assembly, thereby controlling the deformation degree of the sealing member 15. The greater the deformation degree of the sealing member 15, the better the sealing performance. The sealing member 15 is restricted by the flow channel plate 11 and the valve body 13 to improve the sealing performance of the assembled fluid control component.

[0025] The flow channel plate 11 includes a mounting member 12, and the flow channel plate 11 is fixedly connected to the valve body 13 through the mounting member 12. It should be noted that the fixed connection mentioned here means that the flow channel plate 11, the mounting member 12 and the valve body 13 do not move relative to each other. The mounting member 12 can be a detachable connection, or a non-detachable connection by welding, bolting, riveting, etc. The valve device 16 includes a valve core 24, the mounting member 12 is fixedly connected to the valve body 13, the mounting member 12 is connected to the valve core 24 through an elastic member 29, the valve core 24 is slidably connected to the valve body 13, and the valve core 24 is located in the chamber 25 of the valve body 13, the first opening 17 is communicated with the chamber 25 of the valve body 13, and the fluid flows into the chamber 25 of the valve body 13 through the first opening 17. The valve device 16 has a second opening 26, and the second opening 26 is communicated with the first opening 17 through the chamber 25. The valve core 24 unidirectionally connects and closes the second opening 26. There is an opening 17 and a second opening 26. When the fluid flows into the chamber 25 of the valve body 13 through the first opening 17, the fluid drives the valve core 24 to move and compress the elastic member 29. After the valve core 24 moves, the first opening 17 and the second opening 26 are connected. The fluid enters the chamber 25 through the first opening 17 and flows out of the chamber 25 through the second opening 26. When the fluid flows from the chamber 25 to the first opening 17, the elastic member 29 drives the valve core 24 to abut against the chamber 25 to close the first opening 17. The fluid cannot flow out of the chamber 25 from the first opening 17. The fluid control component has a third opening 27. The third opening 27 is connected to the second opening 26. The fluid flows out of the fluid control component through the second opening 26 and the third opening 27. The fluid control component has a fourth opening 28. The fourth opening 28 is connected to the first opening 17. The fluid flows into the first opening 17 through the fourth opening 28.

[0026] In this embodiment, the valve core 24 unidirectionally opens and closes the first opening 17, and the valve device 16 is a one-way valve. In other embodiments, the valve device 16 may also be a stop valve, a solenoid valve, an expansion valve, etc.

[0027] In this embodiment, the second opening 26 is at least partially located on the side of the valve body 13, the third opening 27 is at least partially located on the side of the flow channel plate 11, and the flow channel plate 11 has a fourth opening 28, which is connected to the first opening 17. The fluid flows into the valve device 16 through the fourth opening 28 and the first opening 17, and then flows out of the valve device 16 through the third opening 27 and the fourth opening 28.

[0028] In this embodiment, the side of the valve body 13 has three second openings 26, and the fluid flows out of the chamber 25 of the valve body 13 through the three second openings 26, and then flows out of the valve device 16 through the third opening 27 of the flow channel plate 11. In other embodiments, the side of the valve body 13 may have n second openings 26, where n is a natural number greater than 0, and the flow channel plate 11 may also have m third openings 27, where m is a natural number greater than 0.

[0029] This article focuses on improving the structure of the valve body 13 and the flow channel plate 11 of the fluid control component, which will be described in detail below with reference to the accompanying drawings.

[0030] Embodiment 1

[0031] Reference Figure 1-Figure 9 The first embodiment of the present application is shown. This embodiment specifically discloses that the first limit portion 14 is located on the side wall of the valve body 13, along the height direction of the valve device 16, the first opening 17 is located on one side of the seal 15, and the first limit portion 14 is located on the other side of the seal 15. When the valve body 13 is demolded after molding, the mold moves relative to the first shell portion 18 along the first direction from one side of the first opening 17 to separate.

[0032] Further, refer to Figure 3 The mounting member 12 and the first opening 17 are located on different sides of the valve body 13. One side of the flow channel plate 11 is fixedly connected to the valve body 13 through the mounting member 12. The other side of the flow channel plate 11 abuts against the valve body 13. The flow channel plate 11 is fixed to the valve body 13 on one side through the mounting member 12, and the other side is fixed by abutting against the end 20 of the valve body 13 through the second limiting portion 19.

[0033] Embodiment 2

[0034] Reference Figure 7 The second embodiment of the present application is shown. The difference between this embodiment and the previous embodiment is that the side wall of the second limiting portion 19 is slidably connected to the side wall of the valve body 13, and both sides of the flow channel plate 11 are fixedly connected to the valve body 13 through the mounting parts 12.

[0035] Embodiment 3

[0036] Reference Figure 8 The third embodiment of the present application is shown. This embodiment is based on the above embodiments. This embodiment specifically discloses that the seal 15 can also abut against the side wall of the valve body 13 and the side wall of the flow channel plate 11 to limit the flow of fluid along the height direction of the valve device 16. The seal 15 limits the flow of fluid along the height direction of the valve device 16 and along the radial direction of the valve device 16, thereby further improving the sealing effect of the seal 15.

[0037] Embodiment 4

[0038] Reference Fig. 9The fourth embodiment of the present application is shown. The difference between this embodiment and the first embodiment is that this embodiment specifically discloses that along the height direction of the valve device 16, the first opening 17 is located on one side of the first limiting portion 14, and the sealing member 15 is located on the other side of the first limiting portion 14. Along the first direction, the outer diameter of the valve body 13 decreases or remains unchanged. When the valve body 13 is demolded after being formed, the mold moves relative to the first shell portion 18 from the side opposite to the first opening 17 along the first direction and disengages from it. Moreover, along the first direction, the outer diameter of the valve body 13 decreases or remains unchanged. When the mold disengages from the first shell portion 18 along the first direction, the valve body 13 will not restrict the movement of the mold, and the mold can disengage along the first direction. The first opening 17 is located on one side of the first limiting portion 14, and the sealing member 15 is located on the other side of the first limiting portion 14. The mounting member 12 and the first opening 17 are located on the same side of the valve body 13, and the flow channel plate 11 is fixedly connected to the valve body 13 through the mounting member 12.

[0039] Embodiment 5

[0040] Reference Fig.10 , Fig.11 The fifth embodiment of the present application is shown. The difference between this embodiment and the first embodiment is that this embodiment specifically discloses that the first limiting portion 14 is located at the end 20 of the valve body 13, and the first limiting portion 14 is located outside the first opening 17. Along the height direction of the valve device 16, the sealing member 15 is at least partially located outside the first limiting portion 14, and the first limiting portion 14 is located at the end 20 of the valve body 13, and the first limiting portion 14 and the first opening 17 are located on the same side of the valve body 13. Since the sealing member 15 is partially located outside the first limiting portion 14, after the valve body 13 is matched with the flow channel plate 11, the sealing member 15 abuts against the second limiting portion 19, and is sealed along the height direction of the valve device 16, thereby reducing radial flow leakage of the fluid along the valve device 16.

[0041] Further, refer to Fig.11 As shown, the first limiting portion 14 has an installation groove 21, and the sealing member 15 is partially located in the installation groove 21. Along the radial direction of the valve body 13, the installation groove 21 limits the movement of the sealing member 15 to improve the working stability.

[0042] Embodiment 6

[0043] Reference Figure 3 , Figure 7-10The sixth embodiment of the present application is shown. Based on the above embodiments, the present embodiment specifically discloses that the valve body 13 includes a positioning portion 22. Along the first direction, the positioning portion 22 is located on one side of the first limiting portion 14, and the sealing member 15 is located on the other side of the first limiting portion 14. The flow channel plate 11 includes a matching portion 23. The second limiting portion 19 is distributed along the first direction with respect to the matching portion 23. The matching portion 23 abuts against the positioning portion 22. When the flow channel plate 11 and the valve body 13 are assembled, they are positioned by the matching portion 23 and the positioning portion 22, thereby reducing the difficulty of assembling the valve body 13 and the flow channel plate 11. After the matching portion 23 abuts against the positioning portion 22, the distance between the first limiting portion 14 and the second limiting portion 19 is also determined, so that the spacing between the first limiting portion 14 and the second limiting portion 19 can be controlled, thereby controlling the degree of deformation of the sealing member 15, thereby controlling the degree of sealing.

[0044] It should be noted that the valve provided in the present application is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A valve device (16), characterized in that: The invention comprises a valve body (13), a sealing member (15), and a first limiting portion (14), wherein the first limiting portion (14) is fixedly connected to the valve body (13); along the height direction of the valve device (16), the first limiting portion (14) is located on one side of the sealing member (15), and a first direction is defined. Along the height direction of the valve device (16), the first direction is the distribution direction of the sealing member (15) relative to the first limiting portion; the valve body (13) has a first opening (17); the valve body (13) located on one side of the first limiting portion (14) is a first shell portion (18), and the first shell portion (18) is located on a side of the first limiting portion (14) close to the first opening (17); along the first direction, the outer diameter of the first shell portion (18) decreases or remains unchanged.

2. The valve device (16) according to claim 1, characterized in that The first limiting portion (14) is located on the side wall of the valve body (13), along the height direction of the valve device (16); The first opening (17) is located on one side of the sealing member (15), and the first limiting portion (14) is located on the other side of the sealing member (15); or the first opening (17) is located on one side of the first limiting portion (14), and the sealing member (15) is located on the other side of the first limiting portion (14), and along the first direction, the outer diameter of the valve body (13) decreases or remains unchanged.

3. The valve device (16) according to claim 1, characterized in that The first limiting portion (14) is located at an end portion (20) of the valve body (13), and the first limiting portion (14) and the first opening (17) are located on the same side of the valve body (13). The first limiting portion (14) is located outside the first opening (17), and along the height direction of the valve device (16), the sealing member (15) is at least partially located outside the first limiting portion (14).

4. The valve device (16) according to claim 3, characterized in that The first limiting portion (14) has a mounting groove (21), and the sealing member (15) is partially located in the mounting groove (21). Along the radial direction of the valve body (13), the mounting groove (21) limits the movement of the sealing member (15).

5. The valve device (16) according to any one of claims 2 to 4, characterized in that: The first limiting portion (14) and the valve body (13) are an integral structure; along the first direction, the outer diameter of the first limiting portion (14) decreases or remains unchanged, and the outer diameter of the first shell portion (18) is not greater than the minimum outer diameter of the first limiting portion (14).

6. The valve device (16) according to any one of claims 1 to 5, characterized in that: The valve device (16) comprises a valve core (24) and a mounting member (12), wherein the mounting member (12) is fixedly connected to the valve body (13), the mounting member (12) is connected to the valve core (24) via an elastic member (29), the valve core (24) is slidably connected to the valve body (13), and the valve core (24) is located in a chamber (25) of the valve body (13), the first opening (17) is communicated with the chamber (25) of the valve body (13), the valve device (16) has a second opening (26), the second opening (26) is communicated with the first opening (17) via the chamber (25), and the valve core (24) unidirectionally connects and closes the first opening (17) and the second opening (26).

7. A fluid control assembly, characterized in that: It comprises a flow channel plate (11) and a valve device (16), wherein the valve device (16) is the valve device (16) according to any one of claims 1 to 5; The flow channel plate (11) comprises a second limiting portion (19); along the height direction of the valve device (16), the first limiting portion (14) is located on one side of the sealing member (15), and the second limiting portion (19) is located on the other side of the sealing member (15); along the height direction of the valve device (16), one side of the sealing member (15) abuts against the first limiting portion (14), and the other side of the sealing member (15) abuts against the second limiting portion (19).

8. The fluid control assembly according to claim 7, characterized in that: Along the height direction of the valve device (16), the first opening (17) is located on one side of the sealing member (15), and the first limiting portion (14) is located on the other side of the sealing member (15); the valve device (16) comprises a mounting member (12), the mounting member (12) and the first opening (17) are located on different sides of the valve body (13), and the flow channel plate (11) is fixedly connected to the valve body (13) via the mounting member (12); Alternatively, along the height direction of the valve device (16), the first opening (17) is located on one side of the first limiting portion (14), the sealing member (15) is located on the other side of the first limiting portion (14), the valve device (16) comprises a mounting member (12), the mounting member (12) and the first opening (17) are located on the same side of the valve body (13), and the flow channel plate (11) is fixedly connected to the valve body (13) via the mounting member (12).

9. The fluid control assembly according to claim 8, characterized in that: The valve body (13) comprises a positioning portion (22), and along the first direction, the positioning portion (22) is located on one side of the first limiting portion (14), and the sealing member (15) is located on the other side of the first limiting portion (14). The flow channel plate (11) comprises a matching portion (23), and the second limiting portion (19) is distributed along the first direction with respect to the matching portion (23), and the matching portion (23) abuts against the positioning portion (22).

10. The fluid control assembly according to claim 8 or 9, characterized in that: The valve device (16) comprises a valve core (24), the mounting member (12) is fixedly connected to the valve body (13), the mounting member (12) is connected to the valve core (24) via an elastic member (29), the valve core (24) is slidably connected to the valve body (13), and the valve core (24) is located in a chamber (25) of the valve body (13), the first opening (17) is communicated with the chamber (25) of the valve body (13), the valve device (16) has a second opening (26), the second opening (26) is communicated with the first opening (17) via the chamber (25), the valve core (24) unidirectionally connects and closes the first opening (17) and the second opening (26), the fluid control component has a third opening (27), the third opening (27) is communicated with the second opening (26), and the fluid control component has a fourth opening (28), the fourth opening (28) is communicated with the first opening (17).

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