One-way valve and one-way valve assembly thereof

Abstract

The one-way valve comprises a first valve body and a second valve body, the first valve body comprises a first flanging part and a first main body part, and in the radial direction of the one-way valve, one part of the first flanging part extends outwards relative to the first main body part, namely, one part of the first flanging part protrudes out of the circumferential outer side wall of the first main body part; the first welding face is located on the end face, close to the second valve body, of the first flanging part and welded to the second valve body. Compared with the scheme that only one end of the first main body part is welded to the second valve body, the length of the first welding face is larger than the wall thickness of the first main body part, the welding area can be increased, and therefore the connection strength of the second valve body and the first valve body can be enhanced; and the movement of the first valve body in the axial direction can be limited.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, specifically to a one-way valve for vehicles and a one-way valve assembly thereof. Background Technology

[0002] In related technologies, the valve body of a one-way valve is formed by connecting at least two separate parts. How to optimize the connection strength of each part of the valve body has always been a research topic for technicians in the field of one-way valves. Utility Model Content

[0003] One object of this application is to provide a one-way valve and a one-way valve assembly that can enhance the connection strength between at least two parts of the valve body.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A one-way valve includes a valve core assembly, a first valve body, and a second valve body. The one-way valve has a valve cavity, at least a portion of which is located within the first and second valve bodies. At least a portion of the valve core assembly is located within the valve cavity. The first valve body includes a first flange and a first main body. Along the radial direction of the one-way valve, a portion of the first flange extends outward relative to the first main body. Along the axial direction of the one-way valve, one side of the first flange is used to abut against a flow channel plate, and the other side of the first flange is welded to the second valve body. The first flange includes a first welding surface located at the end face of the first flange near the second valve body. The first welding surface is welded to the second valve body. Along the radial direction of the one-way valve, the length of the first welding surface is greater than the wall thickness of the first main body.

[0006] In the technical solution of this application, the one-way valve includes a first valve body and a second valve body. The first valve body includes a first flange and a first main body. Along the radial direction of the one-way valve, a portion of the first flange extends outward relative to the first main body, that is, a portion of the first flange protrudes from the circumferential outer wall of the first main body. The first welding surface is located at the end face of the first flange near the second valve body, and the first welding surface is welded to the second valve body. Compared with the solution where only one end of the first main body is welded to the second valve body, the length of the first welding surface is greater than the wall thickness of the first main body, which can increase the welding area, thereby enhancing the strength of the connection between the second valve body and the first valve body.

[0007] A one-way valve includes a valve core assembly, a first valve body, and a second valve body. The one-way valve has a valve cavity, at least a portion of which is located within the first and second valve bodies. At least a portion of the valve core assembly is located within the valve cavity. The first valve body includes a first flange and a first main body. Along the radial direction of the one-way valve, at least a portion of the first flange extends outward relative to the first main body. Along the axial direction of the one-way valve, one side of the first flange is used to abut against a flow channel plate, and the other side of the first flange is welded to the second valve body. The first flange includes a first welding surface located at the end face of the first flange near the second valve body. The first welding surface is welded to the second valve body. Along the radial direction of the one-way valve, at least a portion of the size of the first welding surface is greater than the wall thickness of the first main body.

[0008] In the technical solution of this application, the one-way valve includes a first valve body and a second valve body. The first valve body includes a first flange and a first main body. Along the radial direction of the one-way valve, a portion of the first flange extends outward relative to the first main body, that is, a portion of the first flange protrudes from the circumferential outer wall of the first main body. The first welding surface is located at the end face of the first flange near the second valve body, and the first welding surface is welded to the second valve body. Compared with the solution where only one end of the first main body is welded to the second valve body, the size of the first welding surface is larger than the wall thickness of the first main body, which can increase the welding area, thereby enhancing the strength of the connection between the second valve body and the first valve body.

[0009] A one-way valve assembly includes a one-way valve and a flow channel plate. The one-way valve includes a valve core assembly, a first valve body, and a second valve body. The one-way valve has a valve cavity, at least a portion of which is located within the first and second valve bodies. At least a portion of the valve core assembly is located within the valve cavity. The first valve body includes a first flange and a first main body. Along the axial direction of the one-way valve, the first flange is limitedly connected to the flow channel plate. Along the radial direction of the one-way valve, a portion of the first flange extends outward relative to the first main body. The first valve body includes a first welding surface located at the end face of the first flange near the second valve body. The first welding surface is welded to the second valve body. Along the radial direction of the one-way valve, the length of the first welding surface is greater than the wall thickness of the first main body.

[0010] In the technical solution of this application, the one-way valve assembly includes a one-way valve and a flow channel plate. The one-way valve includes a first valve body and a second valve body. The first valve body includes a first flange and a first main body. Along the radial direction of the one-way valve, a portion of the first flange extends outward relative to the first main body, that is, a portion of the first flange protrudes from the circumferential outer wall of the first main body. The first welding surface is located at the end face of the first flange near the second valve body, and the first welding surface is welded to the second valve body. Compared with the solution where only one end of the first main body is welded to the second valve body, the length of the first welding surface is greater than the wall thickness of the first main body, which can increase the welding area, thereby enhancing the strength of the connection between the second valve body and the first valve body. Furthermore, along the axial direction of the one-way valve, the first extension is limited and connected to the flow channel plate, restricting the movement of the first valve body in the axial direction. Attached Figure Description

[0011] Figure 1 A three-dimensional structural schematic diagram of one embodiment of a check valve is shown;

[0012] Figure 2 It shows Figure 1 The exploded view of the check valve shown.

[0013] Figure 3 It shows Figure 1 The diagram shows a structural schematic of one embodiment of the check valve at an angle.

[0014] Figure 4 A cross-sectional view of one embodiment of the check valve assembly along line AA is shown;

[0015] Figure 5 A cross-sectional view along line AA is shown for another embodiment of the one-way valve assembly;

[0016] Figure 6 It shows Figure 1 The diagram shows a cross-sectional view of one embodiment of the check valve along line AA.

[0017] Figure 7 It shows Figure 5 A partial enlarged view of the first valve body shown;

[0018] Figure 8 It shows Figure 1 A cross-sectional view of one embodiment of the second valve body along line AA;

[0019] Figure 9 It shows Figure 1 A cross-sectional view of another embodiment of the second valve body along line AA.

[0020] 100. One-way valve; 200. Flow channel plate; 201. Receiving cavity; 202. Protrusion; 2021. Limiting surface; 1. First valve body; 2. Second valve body; 3. Retaining ring; 4. Valve cavity; 5. Seal; 6. Valve core assembly; 11. First extension; 12. First main body; 13. First welding surface; 14. Abutment surface; 21. Second extension; 22. Second main body; 23. Second welding surface; 24. Sealing part; 25. Valve port; 26. Third extension; 27. Third welding surface. Detailed Implementation

[0021] The embodiments are described in detail below with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further 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 1-5 As shown, a one-way valve assembly includes a one-way valve 100 and a flow channel plate 200. At least a portion of the one-way valve 100 is located inside the flow channel plate 200. The one-way valve 100 includes a valve core assembly 6, a first valve body 1, and a second valve body 2. The one-way valve 100 has a valve cavity 4, at least a portion of which is located within the first valve body 1 and the second valve body 2. At least a portion of the valve core assembly 6 is located within the valve cavity 4. When the fluid flows in the forward direction, the fluid can push the valve core assembly 6 into the valve cavity 4 and then out of the one-way valve 100. When the fluid flows in the reverse direction, the valve core assembly 6 seals the one-way valve 100, preventing the fluid from flowing in the reverse direction. The direction of the fluid flowing in the forward direction is defined as the forward direction.

[0024] like Figure 4 and Figure 5 As shown, the first valve body 1 includes a first flange portion 11 and a first main body portion 12. Along the radial direction of the one-way valve 100, a portion of the first flange portion 11 extends outward relative to the first main body portion 12, i.e., a portion of the first flange portion 11 protrudes from the circumferential outer wall of the first main body portion 12. A first welding surface 13 is located on the end face of the first flange portion 11 near the second valve body 2. The first welding surface 13 is welded to the second valve body 2. Along the radial direction of the one-way valve 100, the length of the first welding surface 13 is greater than the wall thickness of the first main body portion 12. Compared to a scheme where only one end of the first main body portion is welded to the second valve body, providing the first flange portion 11 increases the welding area, thereby enhancing the connection strength between the second valve body 2 and the first valve body 1. One technical solution of this application is as follows... Figure 4 and Figure 5As shown, along the axial direction of the one-way valve 100, one side of the first flange 11 is welded to the second valve body 2, and the other side of the first flange 11 is used for a limiting connection with the flow channel plate 200. The first flange 11 restricts the movement of the one-way valve 100 in the positive direction within the flow channel plate 200. The limiting connection includes abutment, snap-fit, etc.

[0025] Along the axial direction of the check valve 100, one side of the first flange 11 is used to abut against the flow channel plate 200, and the other side of the first flange 11 is welded to the second valve body 2. The first flange 11 can increase the welding area and can be used for positioning. Furthermore, when designing the structure of the check valve, compared with the scheme where the first welding surface 13 and the surface abutting against the flow channel plate 200 are both located on the same side of the first flange, the first welding surface 13 and the surface abutting against the flow channel plate 200 are located on both sides of the first flange 13. The first flange 11 requires less radial space, so that the flow area in the valve cavity 4 can be designed to be larger.

[0026] Another technical solution of this application, such as Figures 6-9 As shown, the second valve body 2 includes a second welding surface 23, which is located at one end face of the second valve body 2 near the first valve body 1. The second welding surface 23 is welded and fixed to the first welding surface 13. The end face of the second valve body 2 near the first valve body 1 is the second welding surface 23. The welding surfaces of the first valve body 1 and the second valve body 2 are located at the end, which facilitates welding.

[0027] Furthermore, the second valve body 2 includes a second flange portion 21 and a second main body portion 22. Along the axial direction of the one-way valve 100, the second main body portion 22 is located at one end of the second valve body 2 near the first valve body 1. Along the radial direction of the one-way valve 100, a portion of the second flange portion 21 extends outward relative to the second main body portion 22, that is, the second flange portion 21 protrudes from the circumferential outer wall of the second main body portion 22. The second welding surface 23 is located at the end face of the second main body portion 22 and the second flange portion 21 near the first valve body 1, and is welded and fixed to the first welding surface 13.

[0028] In some implementations of the above technical solutions, such as Figure 6 and Figure 7 As shown, the wall forming the valve cavity 4 is defined as the inner wall. The inner walls of the first main body 12 and the second main body 22 are basically coplanar. Avoiding changes in the diameter of the inner wall of the one-way valve 100 can reduce the possibility of turbulence in the valve cavity 4.

[0029] During the research process, the inventors discovered that when the material of the first valve body 11 includes metal, its material properties can be utilized to achieve high-temperature resistance. Furthermore, the inventors found that the first valve body 1 is a thin-walled component. Preferably, the first valve body 1, formed from sheet metal through stamping or other processing methods, has a thinner overall wall thickness compared to a plastic one-way valve 100 under the same strength requirements. A thinner wall thickness within the same flow channel plate 200 allows for a larger flow area, which is beneficial for improving flow efficiency. The wall thickness of the first valve body 1 is less than or equal to 1 mm. When welding the end face of the first valve body 1, the thin wall of the sheet metal results in a small welding area, which can easily lead to insufficient welding strength. Therefore, the inventors addressed this by providing a bent edge to the first valve body 1, i.e., the first flange 11 is flanged, which effectively increases the welding area and improves welding strength.

[0030] The second valve body 2 can also be a thin-walled component, formed by stamping and other processes on sheet metal. Under the same strength requirements, it has a thinner overall wall thickness than the plastic one-way valve 100. The thinner wall thickness allows for a larger flow area within the same flow channel plate 200, which is beneficial for improving flow efficiency. Preferably, the wall thickness of the second valve body 2 is less than or equal to 1 mm. When welding the end face of the first valve body 1, the thin wall of the second valve body 2, formed from sheet metal, results in a small welding area, which can easily lead to insufficient welding strength. Therefore, the inventors have addressed this by providing a bent edge on the second valve body 2, i.e., the second flange 21 is flanged, which effectively increases the welding area and improves welding strength.

[0031] like Figure 7 As shown, the length of the first flange 11 is t. The length t of the first flange 11 is greater than or equal to 1.7 times the wall thickness of the first main body 12, and the length t of the first flange 11 is less than or equal to 2.5 times the wall thickness of the first main body 12. Due to the limitations of sheet metal forming process, the longer the flange, the higher the processing difficulty. Therefore, it is more appropriate for the length t of the first flange 11 to be 1.7 to 2.5 times the wall thickness of the first main body 12.

[0032] In some other embodiments of the above technical solution, such as Figure 8 and Figure 9 As shown, the valve core assembly 6 can abut against the corresponding second valve body 2. The second valve body 2 includes a second main body 22, which is located at the end of the second valve body 2 close to the first valve body 1. The second valve body 2 includes a sealing part 24, which is located away from the first valve body 1 relative to the second main body 22. The second valve body 2 includes a valve port 25, which is located away from the first valve body 1 relative to the sealing part 24. Along the axial direction of the one-way valve 100, from the valve port 25 to the second main body 22, the inner diameter of the sealing part 24 gradually increases. The beveled seal is beneficial to improving the sealing effect.

[0033] Furthermore, such as Figure 8 and Figure 9 As shown, the second valve body 2 includes a third flange portion 26, a portion of which extends outward relative to the valve port portion 25; the one-way valve 100 assembly includes a retaining ring 3, which is located away from the first valve body 1 relative to the second valve body 2, and the one-way valve 100 is limited by the retaining ring 3. The second valve body 2 includes a third welding surface 27, which is located on the end face of the third flange portion 26 near the retaining ring 3. The third welding surface 27 is welded to the retaining ring 3, and the second valve body 2 and the retaining ring 3 are connected by welding, thereby restricting the movement of the one-way valve 100 in the reverse direction within the flow channel plate 200.

[0034] Furthermore, such as Figure 8 and Figure 9 As shown, the one-way valve 100 includes a seal 5 located radially outside the valve port 25. The seal 5 abuts against the flow channel plate 200, which helps reduce external leakage of the one-way valve 100. One side of the seal 5 is a sealing part 24, and the other side is a retaining ring 3. The retaining ring 3 is assembled with the third flange 26 of the valve port 25 and connected by welding to form a first retaining wall of the seal 5. The sealing part 24 forms a second retaining wall of the seal 5 on the outer side through processes such as flaring, and the inner wall of the sealing part 24 forms the inclined sealing surface of the valve core assembly 6. The seal 5 is limited by the retaining ring 3 and the sealing part 24, reducing the risk of the seal 5 detaching from the one-way valve 100.

[0035] like Figure 4 and Figure 5 As shown, the one-way valve assembly includes a one-way valve 100 and a flow channel plate 200. The one-way valve 100 includes a valve core assembly 6, a first valve body 1, and a second valve body 2. The one-way valve 100 has a valve cavity 4, at least a portion of which is located within the first valve body 1 and the second valve body 2. At least a portion of the valve core assembly 6 is located within the valve cavity 4. The first valve body 1 includes a first flange portion 11 and a first main body portion 12. Along the axial direction of the one-way valve 100, the first flange portion 11 is limitedly connected to the flow channel plate 200, and the limiting connection includes abutment, snap-fit, etc. Along the radial direction of the one-way valve 100, a portion of the first flange portion 11 extends outward relative to the first main body portion 12. The first valve body 1 includes a first welding surface 13, which is located on the end face of the first flange portion 11 near the second valve body 2. The first welding surface 13 is welded to the second valve body 2. Along the radial direction of the one-way valve 100, the size of the first welding surface 13 is larger than the wall thickness of the first main body portion 12.

[0036] Furthermore, along the axial direction of the one-way valve 100, one side of the first flange 11 abuts against the flow channel plate 200, and the other side of the first flange 11 is welded to the second valve body 2, thereby restricting the movement of the first valve body 1 in the axial direction.

[0037] Furthermore, the flow channel plate 200 has a receiving cavity 201, within which the one-way valve 100 is located. The flow channel plate 200 includes a protrusion 202 that protrudes from the wall forming the receiving cavity 201. The protrusion 202 includes a limiting surface 2021 located on the end face of the protrusion 202 facing the first flange 11, and the limiting surface 2021 abuts against the first flange 11. During installation, the one-way valve 100 is inserted from one side of the flow channel plate 200 until the abutting surface 14 abuts against the first flange 11, making the operation simple.

[0038] 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. 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 make modifications or 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 one-way valve, characterized in that, The one-way valve (100) includes a valve core assembly (6), a first valve body (1), and a second valve body (2). The one-way valve (100) has a valve cavity (4), at least a portion of which is located within the first valve body (1) and the second valve body (2). At least a portion of the valve core assembly (6) is located within the valve cavity (4). The first valve body (1) includes a first flange (11) and a first main body (12). Along the axial direction of the one-way valve (100), one side of the first flange (11) is used to abut against the flow channel plate (200), and the other side of the first flange (11) is used to abut against the flow channel plate (200). One side is welded to the second valve body (2); along the radial direction of the one-way valve (100), a portion of the first flange (11) extends outward relative to the first main body (12); the first flange (11) includes a first welding surface (13), the first welding surface (13) is located on the end face of the first flange (11) near the second valve body (2), the first welding surface (13) is welded to the second valve body (2), and along the radial direction of the one-way valve (100), the length of the first welding surface (13) is greater than the wall thickness of the first main body (12).

2. The one-way valve according to claim 1, characterized in that, The wall thickness of the first valve body (1) is less than or equal to 1 mm, and the material of the first valve body (1) includes metal.

3. The one-way valve according to claim 1, characterized in that, Along the radial direction of the one-way valve (100), the length of the first flange (11) is greater than or equal to 1.7 times the wall thickness of the first main body (12), and the length of the first flange (11) is less than or equal to 2.5 times the wall thickness of the first main body (12).

4. The one-way valve according to any one of claims 1-3, characterized in that, The second valve body (2) includes a second welding surface (23), and the second valve body (2) includes a second flange (21) and a second main body (22). Along the radial direction of the one-way valve (100), a portion of the second flange (21) extends outward relative to the second main body (22); the second welding surface (23) is located at the end face of the second flange (21) near the first valve body (1), and the second welding surface (23) is welded and fixed to the first welding surface (13).

5. The one-way valve according to claim 4, characterized in that, The wall forming the valve cavity (4) is defined as the inner wall, and the inner wall of the first main body (12) and the inner wall of the second main body (22) are substantially coplanar.

6. The one-way valve according to claim 4, characterized in that, The length of the second flange (21) is greater than or equal to twice the wall thickness of the second main body (22), and the length of the second flange (21) is less than or equal to 2.5 times the wall thickness of the second main body (22).

7. The one-way valve according to any one of claims 1-6, characterized in that, The valve core assembly (6) is capable of abutting against the second valve body (2). The second valve body (2) includes a second main body (22) located at one end of the second valve body (2) near the first valve body (1). The second valve body (2) includes a sealing part (24) located away from the first valve body (1) relative to the second main body (22). The second valve body (2) includes a valve port (25) located away from the first valve body (1) relative to the sealing part (24). Along the axial direction of the one-way valve (100), from the valve port (25) towards the second main body (22), the inner diameter of the sealing part (24) gradually increases.

8. The one-way valve according to claim 7, characterized in that, The second valve body (2) includes a third flange (26), a portion of which extends outward relative to the valve port (25). The second valve body (2) includes a third welding surface (27). The one-way valve (100) assembly includes a retaining ring (3), which is located away from the first valve body (1) relative to the second valve body (2). The third welding surface (27) is located on the end face of the third flange (26) near the retaining ring (3). The third welding surface (27) is welded to the retaining ring (3).

9. The one-way valve according to claim 8, characterized in that, The one-way valve (100) includes a seal (5) located radially outside the valve port (25) and abutting against the flow channel plate (200); the sealing part (24) is located on one side of the seal (5) and the retaining ring (3) is located on the other side of the seal (5).

10. A one-way valve assembly, characterized in that, Includes a one-way valve (100) and a flow channel plate (200). The one-way valve (100) includes a valve core assembly (6), a first valve body (1), and a second valve body (2). The one-way valve (100) has a valve cavity (4), at least a portion of which is located within the first valve body (1) and the second valve body (2). At least a portion of the valve core assembly (6) is located within the valve cavity (4). The first valve body (1) includes a first flange (11) and a first main body (12). Along the axial direction of the one-way valve (100), the first flange (11) is connected to the flow channel plate (200). The guide plate (200) is limited and connected; along the radial direction of the one-way valve (100), a portion of the first flange (11) extends outward relative to the first main body (12); the first valve body (1) includes a first welding surface (13), the first welding surface (13) is located on the end face of the first flange (11) near the second valve body (2), the first welding surface (13) is welded to the second valve body (2), and along the radial direction of the one-way valve (100), the length of the first welding surface (13) is greater than the wall thickness of the first main body (12).

11. The one-way valve assembly according to claim 10, characterized in that, Along the axial direction of the one-way valve (100), one side of the first flange (11) abuts against the flow channel plate (200), and the other side of the first flange (11) is welded to the second valve body (2).

12. The one-way valve assembly according to claim 11, characterized in that, The flow channel plate (200) has a receiving cavity (201), the one-way valve (100) is located in the receiving cavity (201), the flow channel plate (200) includes a protrusion (202), the protrusion (202) protrudes from the wall forming the receiving cavity (201), the protrusion (202) includes a limiting surface (2021), the limiting surface (2021) is located on the end face of the protrusion (202) facing the first flange (11), and the limiting surface (2021) abuts against the first flange (11).

13. A one-way valve, characterized in that, The one-way valve (100) includes a valve core assembly (6), a first valve body (1), and a second valve body (2). The one-way valve (100) has a valve cavity (4), at least a portion of which is located within the first valve body (1) and the second valve body (2). At least a portion of the valve core assembly (6) is located within the valve cavity (4). The first valve body (1) includes a first flange (11) and a first main body (12). Along the axial direction of the one-way valve (100), one side of the first flange (11) is used to abut against the flow channel plate (200), and the other side of the first flange (11) is used to abut against the flow channel plate (200). The second valve body (2) is welded; at least a portion of the first flange (11) extends outward relative to the first main body (12) along the radial direction of the one-way valve (100); the first flange (11) includes a first welding surface (13) located at the end face of the first flange (11) near the second valve body (2), the first welding surface (13) is welded to the second valve body (2), and at least a portion of the first welding surface (13) is larger than the wall thickness of the first main body (12) along the radial direction of the one-way valve (100).

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