A one-way valve and fluid control assembly

Abstract

The application provides a one-way valve and a fluid control assembly. The one-way valve comprises a first valve body and a second valve body. The first valve body is fixedly connected or positionally connected with an external component. The first valve body comprises a first buckle. The second valve body comprises a second buckle. The first buckle and the second buckle are positionally connected. The one-way valve is located in a mounting cavity of a flow channel plate. The second valve body comprises a first abutting wall. The first abutting wall forms an angle with the shaft of the one-way valve. The first abutting wall can abut against a second abutting wall. When the second abutting wall abuts against the first abutting wall, the second abutting wall can support the second valve body. If the second valve body is inclined, the first abutting wall and the second abutting wall can abut against each other. The first abutting wall with an inclination angle can guide the second valve body to be straightened, and the risk of the second valve body being inclined can be reduced.

Description

Technical Field

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

[0002] In related technologies, a one-way valve includes a first valve body and a second valve body, which are connected by a snap-fit. When designing the snap-fit, considering design tolerances and ease of disassembly and assembly, axial and radial allowances need to be left at the snap-fit ​​joint. Due to the existence of this allowance, the second valve body may be misaligned relative to the first valve body after the first valve body is connected to the external component. If the second valve body is misaligned, it can easily lead to problems such as sealing leakage. Therefore, how to reduce the risk of misalignment of the second valve body is one of the key research focuses of those skilled in the art. Utility Model Content

[0003] One objective of this application is to provide a one-way valve and fluid control assembly that helps reduce the risk of the second valve body becoming misaligned.

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

[0005] A one-way valve includes a first valve body and a second valve body. The first valve body can be fixedly connected or limited to an external component. The first valve body includes a first latch, and the second valve body includes a second latch. The first latch and the second latch are limited to each other. The second valve body includes a first abutment wall located on the circumferential outer wall of the second valve body. The first abutment wall can abut against the external component. Along the axial direction of the one-way valve, the first abutment wall has an angle with the axial direction of the one-way valve, and the radial dimension of the first abutment wall decreases in the direction away from the first valve body.

[0006] In the technical solution of this application, the second valve body includes a first abutting wall. The first abutting wall has an angle with the axial direction of the one-way valve. The first abutting wall can abut with an external component. When the external component abuts with the first abutting wall, it can support the second valve body. If the second valve body is tilted, the first abutting wall with the tilt angle can play a guiding role, which is conducive to guiding the second valve body to turn upright and reducing the risk of the second valve body being tilted.

[0007] A fluid control assembly includes a one-way valve and a flow channel plate. The flow channel plate includes a mounting cavity, in which at least a portion of the one-way valve is located. The one-way valve includes a first valve body and a second valve body. The first valve body is fixedly connected or limitedly connected to the flow channel plate. The first valve body includes a first latch, and the second valve body includes a second latch. The first latch and the second latch are limitedly connected. The second valve body includes a first abutment wall located on the circumferential outer wall of the second valve body. The wall forming the mounting cavity includes a second abutment wall facing the first abutment wall. Along the axial direction of the one-way valve, the first abutment wall and the axial direction of the one-way valve form an angle. The radial dimension of the first abutment wall decreases in the direction away from the first valve body, and the first abutment wall can abut against the second abutment wall.

[0008] In the technical solution of this application, the one-way valve is located in the mounting cavity of the flow channel plate, and the second valve body includes a first abutting wall. The first abutting wall has an angle with the axial direction of the one-way valve. The first abutting wall can abut with the second abutting wall. When the second abutting wall abuts with the first abutting wall, it can support the second valve body. If the second valve body is tilted, the first abutting wall and the second abutting wall can abut and cooperate. The first abutting wall with the tilt angle can play a guiding role, which is conducive to guiding the second valve body to be upright and reducing the risk of the second valve body being tilted. Attached Figure Description

[0009] Figure 1 A three-dimensional structural schematic diagram of one embodiment of a check valve is shown;

[0010] Figure 2 It shows Figure 1 The diagram shows a cross-sectional view of one embodiment of the check valve along line AA.

[0011] Figure 3 A cross-sectional view along line AA is shown for another embodiment of the check valve;

[0012] Figure 4 It shows Figure 2 A partially enlarged view of the check valve shown.

[0013] Figure 5 It shows Figure 2 A three-dimensional structural schematic diagram of one embodiment of the first valve body shown;

[0014] Figure 6 It shows Figure 2 A three-dimensional structural schematic diagram of one embodiment of the second valve body shown;

[0015] Figure 7 It shows Figure 3A three-dimensional structural schematic diagram of one embodiment of the second valve body shown;

[0016] Figure 8 A cross-sectional schematic diagram of one embodiment of a fluid control assembly is shown;

[0017] Figure 9 A cross-sectional schematic diagram of another embodiment of a fluid control assembly is shown;

[0018] Figure 10 It shows Figure 8 A partially enlarged view of the fluid control assembly shown.

[0019] 100. One-way valve; 200. Fluid control assembly; 1. First valve body; 11. First receiving cavity; 12. Second side wall; 13. First end face; 14. Second end face; 3. Snap-fit ​​structure; 31. First snap-fit; 311. First limiting surface; 32. Second snap-fit; 321. Second limiting surface; 4. Valve cavity; 5. Valve core assembly; 6. First seal; 7. Second seal; 8. Flow channel plate; 81. Mounting cavity; 82. Inlet 83. Oral cavity; 84. Outlet oral cavity; 85. Second abutment wall; 86. Limiting groove; 87. Limiting part; 88. Second sealing part; 9. Retaining ring; 91. Third end face; 2. Second valve body; 21. First abutment wall; 22. Valve port; 23. Outlet part; 24. First sealing part; 241. First side wall part; 242. Groove; 25. Main body part; 26. Connecting part; 27. Stop part; 271. Fixed end; 272. Cantilever end. Detailed Implementation

[0020] The embodiments are described in detail below with reference to the accompanying drawings.

[0021] To make the objectives, technical solutions, and advantages of this application clearer, embodiments of this application are described below in conjunction with the accompanying drawings. 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, order, or quantity between these components.

[0022] like Figures 1 to 3As shown, a one-way valve 100 includes a first valve body 1 and a second valve body 2. The first valve body 1 can be fixedly connected or limited to an external component. "Limited connection" here includes hinge, snap-fit, abutment, or restriction of movement in at least one direction. "Fixed connection" in this application includes welding, bonding, riveting, insert injection molding, etc. The first valve body 1 includes a first latch 31, and the second valve body 2 includes a second latch 32. The first latch 31 and the second latch 32 are limitedly connected. The latches 32 can mutually limit each other, fixing the first valve body 1 and the second valve body 2 into one unit through the latch structure 3. During installation, the one-way valve 100 can be inserted into the installation position as a whole, which helps to reduce the installation difficulty. In the design of the first latches 31 and the second latches 32, in order to ensure that the first latches 31 and the second latches 32 can be smoothly engaged and disengaged, a certain amount of axial and radial movement is required between the first latches 31 and the second latches 32. Due to the existence of this axial movement, the first latches 31 and the second latches 32 can have relative movement. When the one-way valve 100 is installed on an external component, the first valve body 1 needs to be connected to the external component. The second valve body 2 may be misaligned relative to the first valve body 1. When the second valve body 2 is misaligned, it may affect the sealing performance between the valve core assembly 5 and the second valve body 2, and may also cause uneven gaps between the second valve body 2 and the sealing surface of the external component, resulting in fluid leakage from the gaps.

[0023] like Figures 1 to 3 As shown, the second valve body 2 includes a first abutment wall 21, which is located on the circumferential outer wall of the second valve body 2. The first abutment wall 21 can abut against an external component, and when the external component abuts against the first abutment wall 21, it can provide support for the second valve body 2. The arrangement order of the first valve body 1 and the second valve body 2 is defined as the axial direction of the one-way valve 100, as shown. Figure 2 As indicated by reference numeral H, along the axial direction of the one-way valve 100, the first abutment wall 21 has an angle with the axial direction of the one-way valve 100. The radial dimension of the first abutment wall 21 decreases in the direction away from the first valve body 1. If the second valve body 2 is deflected, the first abutment wall 21 with the tilt angle can play a guiding role, which is conducive to guiding the second valve body 2 to turn upright and reducing the risk of the second valve body 2 being deflected.

[0024] The first abutment wall 21 is a conical surface, or the first abutment wall 21 is an arc surface. Both the conical and arc surfaces of the first abutment wall 21 can serve as guides, which is beneficial for guiding the second valve body 2 to rotate in the correct direction. When the first abutment wall 21 is a conical surface, the angle between the first abutment wall 21 and the axial direction of the one-way valve 100 is less than 90° and greater than or equal to 5°.

[0025] like Figures 1 to 3As shown, the one-way valve 100 includes a valve port 22 and an outlet 23. The one-way valve 100 has a valve cavity 4. The valve port 22 and the outlet 23 are connected to the valve cavity 4. The outlet 23 is located on the circumferential sidewall of the second valve body 2. The valve port 22 is located away from the first valve body 1 relative to the outlet 23. The one-way valve 100 includes a valve core assembly 5 located in the valve cavity 4. The valve core assembly 5 can abut against the valve port 22. When fluid flows in from the valve port 22, the fluid will... When the valve core assembly 5 is struck, it moves away from the valve port 22, opening the valve port 22. Fluid can then enter the valve chamber 4 from the valve port 22 and exit the valve chamber 4 from the outlet 23. This is the forward conduction of the check valve 100. When the fluid in the valve chamber 4 wants to flow out of the valve chamber 4 from the valve port 22 in the reverse direction, the valve core assembly 5 will be pressed against the valve port 22, closing the valve port 22 and preventing the fluid from flowing out of the valve chamber 4. This is the reverse cutoff of the check valve 100. When the check valve 100 is in the reverse shut-off state, due to the pressure difference between the two ends of the valve core assembly 5, when the pressure in the valve chamber 4 is large, the valve core assembly 5 will be pressed against the valve port 22. At this time, the second valve body 2 will be subjected to the pressure of the valve core assembly 5 and move away from the first valve body 1. The connection between the second valve body 2 and the first valve body 1 will be subjected to force. The first abutting wall 21 can abut against the external component. When the external component abuts against the first abutting wall 21, the external component can provide support for the second valve body 2. Along the axial direction of the check valve 100, the first abutting wall 21 is away from the first valve body 1 relative to the outlet 23. When the first abutting wall 21 is in this position, the supporting force of the external component on the second valve body 2 can offset at least part of the pressure of the valve core assembly 5 on the valve port 22, which helps to reduce the force on the connection between the second valve body 2 and the first valve body 1, and helps to reduce the risk of the first latch 31 and the second latch 32 being disengaged or broken due to force.

[0026] like Figures 1 to 3 As shown, the one-way valve 100 includes a first sealing portion 24, located at the end of the second valve body 2 away from the first valve body 1; the first sealing portion 24 includes a first sidewall portion 241, located on the circumferential outer sidewall of the first sealing portion 24; the first sealing portion 24 has a groove 242, the groove 242 having an opening in the first sidewall portion 241; the one-way valve 100 includes a first sealing element 6, at least a portion of the first sealing element 6 located in the groove 242; the first sealing element 6 can abut against an external component, which helps to reduce leakage between the second valve body 2 and the external component; the first sidewall portion 241 is connected to a first abutting wall 21, the radial dimension of the first sidewall portion 241 is smaller than the minimum radial dimension of the first abutting wall 21, when the one-way valve 100 is inserted into the installation position, the radial dimension of the first sidewall portion 241 is smaller than the minimum radial dimension of the first abutting wall 21, the first sidewall portion 241 will not interfere with the external component, avoiding affecting the abutment and guiding relationship between the first abutting wall 21 and the external component; as Figure 2 As shown, the angle between the first sidewall portion 241 and the axial direction of the one-way valve 100 is 0°. At this time, the first sidewall portion 241 extends from the first abutting wall 21 in a direction away from the first valve body 1, and the radial dimension of the first sidewall portion 241 remains unchanged. Therefore, the thickness of the two sidewalls of the groove 242 is consistent, and the sidewalls of the groove 242 can limit the first sealing member 6, which helps to prevent the first sealing member 6 from falling out of the groove 242; or, as Figure 3 As shown, the first sidewall portion 241 can abut against external components. The first sidewall portion 241 is parallel or approximately parallel to the first abutment wall 21. At this time, the first sidewall portion 241 extends from the first abutment wall 21 in a direction away from the first valve body 1, and the radial dimension of the first sidewall portion 241 is reduced. When the second valve body 2 is processed by injection molding or other methods, the first sidewall portion 241 is parallel or approximately parallel to the first abutment wall 21. The structure of the reduced radial dimension of the first sidewall portion 241 facilitates demolding. The first sidewall portion 241 can also abut against external components. The first sidewall portion 241 increases the abutment area with external components, and the second valve body 2 has a wider pressure-bearing area and better pressure-bearing strength.

[0027] like Figures 5 to 7 The first valve body 1 includes a first receiving cavity 11. The wall forming the first receiving cavity 11 includes a second side wall portion 12, which circumferentially surrounds the second valve body 2. A first latch 31 protrudes from the second side wall portion 12 towards the side closer to the second valve body 2. A second latch 32 is located at one end of the second valve body 2 near the first valve body 1. At least a portion of the second latch 32 is located within the first receiving cavity 11. The first valve body 1 and the second valve body 2 partially overlap along the axial direction of the one-way valve 100, which helps to reduce the overall axial length of the one-way valve 100. Along the axial direction of the one-way valve 100, the first latch 31 and the second latch 32 mutually limit each other. The first valve body 1 and the second valve body 2 are connected and fixed by a latch structure 3, which can be a straight-insertion latch or a rotary latch.

[0028] like Figure 4As shown, along the radial direction of the one-way valve 100, the first valve body 1 and the second valve body 2 can be radially offset relative to each other, with a maximum offset of 0.4 mm. To further eliminate the offset, protrusions can be provided at the wall surfaces where the first valve body 1 and the second valve body 2 can radially contact each other, which helps to further eliminate possible radial offset of the snap-fit ​​structure. The first snap-fit ​​31 includes a first limiting surface 311, and the second snap-fit ​​32 includes a second limiting surface 321. Along the axial direction of the one-way valve 100, the first limiting surface 311 is located at the end face of the first snap-fit ​​31 away from the valve port 22, and the second limiting surface 321 is located at the end face of the second snap-fit ​​32 near the valve port 22. Along the axial direction of the one-way valve 100, there is a movable gap between the first limiting surface 311 and the second limiting surface 321, with a maximum gap of 0.9 mm. Due to the tolerance in the axial design length of the one-way valve 100, and the axial length at the installation position of the external component, there is also a tolerance. Design tolerances can lead to the check valve 100 failing to install itself if the design limit deviation exceeds the axial length of the external component's mounting position. However, the check valve 100 of this application has a variable clearance in the axial direction of the first latch 31 and the second latch 32. This movable clearance allows for adjustment of the overall length of the valve body after the first valve body 1 and the second valve body 2 are connected as a single unit. This helps to compensate for design tolerances and reduces the risk that the check valve 100 will fail to install itself if the design limit deviation exceeds the axial length of the external component's mounting position.

[0029] And, as Figures 1 to 4 As shown, when the valve core assembly 5 is pressed against the valve port 22, the second valve body 2 will move away from the first valve body 1 due to the pressure of the valve core assembly 5. The first abutting wall 21 can abut against the external component. When the external component abuts against the first abutting wall 21, the external component can provide support for the second valve body 2. At this time, after the one-way valve 100 is connected to the external component, there is still a gap in the axial direction of the first latch 31 and the second latch 32. No matter how much pressure the valve core assembly 5 applies to the second valve body 2, the external component can provide support for the second valve body 2, avoiding the first latch 31 and the second latch 32 from bearing the force. This helps to avoid the risk of the first latch 31 and the second latch 32 coming off or even breaking due to the force.

[0030] like Figures 5 to 7As shown, the second valve body 2 includes a main body 25 and a connecting part 26. The main body 25 is connected to the valve port 22, and the connecting part 26 is connected to the main body 25. The second latch 32 is connected to the connecting part 26. Along the axial direction of the check valve 100, the second latch 32 is located on one side of the first latch 31, and the main body 25 is located on the other side of the second latch 32. The first latch 31 can rotate relative to the second latch 32 and engage between the second latch 32 and the main body 25. Along the axial direction of the check valve 100, the second latch 32 and the main body 25 limit the first latch 31, preventing the first latch 31 from easily disengaging along the axial direction of the check valve 100, which helps to improve the stability of the check valve 100 latch structure 3. The second valve body 2 includes a stop The stop portion 27 has a fixed end 271 at one end, which is connected to the connecting portion 26 or the main body portion 25. The other end of the stop portion 27 is a cantilever end 272, which is closer to the first latch 31 than the fixed end 271. With the fixed end 271 of the stop portion 27 as the fulcrum, the cantilever end 272 of the stop portion 27 can move under the action of external force. Along the circumference of the one-way valve 100, the first latch 31 is located between the cantilever end 272 of the stop portion 27 and the connecting portion 26, which prevents the first latch 31 from easily rotating along the circumference of the one-way valve 100 and causing the first latch 31 to disengage from the limiting area of ​​the second latch 32. This helps to improve the stability of the latch structure 3 of the one-way valve 100.

[0031] like Figure 8 and Figure 9 As shown, a fluid control assembly 200 includes a one-way valve 100 and a flow channel plate 8. The flow channel plate 8 includes an inlet cavity 82, an outlet cavity 83, and a mounting cavity 81. The inlet cavity 82 communicates with the mounting cavity 81, and the outlet cavity 83 communicates with the mounting cavity 81. At least a portion of the one-way valve 100 is located in the mounting cavity 81. The one-way valve 100 includes a valve cavity 4, a valve port 22, and an outlet 23. The inlet cavity 82 communicates with the valve cavity 4 through the valve port 22, and the outlet cavity 83 communicates with the valve cavity 4 through the outlet 23. The outlet 23 is located on the circumferential sidewall of the second valve body 2. The valve port 22 is located away from the first valve body 1 relative to the outlet 23. The one-way valve 100 includes a valve core assembly 5. The valve core assembly 5 is located in the valve cavity 4 and can abut against the valve port 22. When fluid flows in from the inlet 82, the fluid will impact the valve core assembly 5, causing the valve core assembly 5 to move away from the valve port 22. At this time, the valve port 22 is opened, and the fluid can enter the valve cavity 4 from the inlet 82 and then flow out of the valve cavity 4 from the outlet 23 and into the outlet 83. This is the forward conduction of the check valve 100. However, when the fluid in the valve cavity 4 or the outlet 83 wants to flow out of the valve cavity 4 from the valve port 22 and into the inlet 82 in the reverse direction, the valve core assembly 5 will be pressed against the valve port 22. At this time, the valve port 22 is closed, and the fluid cannot flow from the valve port 22 into the inlet 82. This is the reverse cut-off of the check valve 100.

[0032] like Figure 8 and Figure 9 As shown, the one-way valve 100 includes a first valve body 1 and a second valve body 2. The first valve body 1 is fixedly connected to or limited by the flow channel plate 8. "Limited connection" here includes hinge, snap-fit, abutment limitation, or restriction of movement in at least one direction. "Fixed connection" in this application includes welding, bonding, riveting, insert injection molding, etc. The first valve body 1 and the second valve body 2 are connected by a snap-fit ​​structure 3. The first valve body 1 includes a first snap-fit ​​31, and the second valve body 2 includes a second snap-fit ​​32. The first latch 31 and the second latch 32 are connected in a limiting manner. The second valve body 2 includes a first abutting wall 21, which is located on the circumferential outer wall of the second valve body 2. The wall forming the mounting cavity 81 includes a second abutting wall 84, which faces the first abutting wall 21. The first abutting wall 21 has an angle with the axial direction of the one-way valve 100. The radial dimension of the first abutting wall 21 decreases in the direction away from the first valve body 1. The first abutting wall 21 can abut and cooperate with the second abutting wall 84. When the second abutting wall 84 abuts against the first abutting wall 21, it can support the second valve body 2. The first abutting wall 21 has an angle with the axial direction of the one-way valve 100. The radial dimension of the first abutting wall 21 decreases in the direction away from the first valve body 1. If the second valve body 2 is tilted, the first abutting wall 21 with the tilt angle cooperates with the second abutting wall 84. The first abutting wall 21 can play a guiding role, which is conducive to guiding the second valve body 2 to turn upright and reducing the risk of the second valve body 2 being tilted.

[0033] like Figure 8 and Figure 9 As shown, the second abutment wall 84 has an angle relative to the axial direction of the mounting cavity 81. The axis of the mounting cavity 81 is defined to be parallel or approximately parallel to the axis of the one-way valve 100. The second abutment wall 84 is parallel or approximately parallel to the first abutment wall 21. The abutment area between the first abutment wall 21 and the second abutment wall 84 is increased, and the pressure-bearing area of ​​the second valve body 2 is wider and has better pressure-bearing strength.

[0034] like Figure 8 and Figure 9As shown, the wall forming the mounting cavity 81 has a limiting groove 85. The fluid control assembly 200 includes a retaining ring 9, at least a portion of which is located in the limiting groove 85. The retaining ring 9 is located on the side of the first valve body 1 away from the second valve body 2, and it helps to prevent the one-way valve 100 from dislodging from the mounting cavity 81. The flow channel plate 8 includes a limiting portion 86 and a second sealing portion 87. The one-way valve 100 includes a second sealing element 7, which is cylindrical and surrounds the first valve body 1. Along the radial direction of the one-way valve 100, the second sealing element 7 is located between the first valve body 1 and the second sealing portion 87. The limiting portion 86 extends from the second sealing portion 87 toward the central axis of the one-way valve 100, and the second sealing element 7 abuts against the second sealing portion 87 to seal, which helps to prevent the one-way valve 100 from dislodging from the mounting cavity 81. To reduce the risk of external leakage of the check valve 100, the first valve body 1 has a first end face 13 and a second end face 14 along the axial direction of the check valve 100. The first end face 13 and the second end face 14 are arranged opposite to each other along the axial direction of the check valve 100. The first end face 13 is limited and engaged with the retaining ring 9, and the second end face 14 is limited and engaged with the limiting part 86. The retaining ring 9 and the limiting part 86 are located on both sides of the axial direction of the first valve body 1. The first valve body 1 is fixed in the mounting cavity 81. The connection operation of the retaining ring 9 is simple. When the check valve 100 is installed into the mounting cavity 81, it is only necessary to install the entire check valve 100 into the mounting cavity 81 until one end of the first valve body 1 abuts against the limiting part 86, and then the retaining ring 9 is snapped into the other end of the first valve body 1 to complete the assembly of the check valve 100.

[0035] like Figure 10 As shown, the first latch 31 includes a first limiting surface 311, and the second latch 32 includes a second limiting surface 321. Along the axial direction of the one-way valve 100, the first limiting surface 311 is located at the end face of the first latch 31 away from the first abutment wall 21, and the second limiting surface 321 is located at the end face of the second latch 32 close to the first abutment wall 21. Along the axial direction of the one-way valve 100, there is a movable gap between the first limiting surface 311 and the second limiting surface 321. The retaining ring 9 includes a third end face 91. Along the axial direction of the one-way valve 100, the length from the third end face 91 to the end of the second abutment wall 84 near the third end face 91 is as follows: Figure 10 As indicated by reference numeral A, the length from the first end face 13 to the end of the first abutting wall 21 near the first end face 13 is as follows: Figure 10As indicated by reference numeral B, the one-way valve 100 has a design length tolerance in the axial direction, i.e., the length B has a tolerance, and the axial length of the mounting cavity also has a design tolerance, i.e., the length A has a tolerance. When the limit deviation value B of the one-way valve 100 is greater than the axial length A of the mounting cavity, the one-way valve 100 cannot be installed in the mounting position. However, the one-way valve 100 of this application has a variable clearance in the axial direction of the first latch 31 and the second latch 32. With the help of this variable clearance, the total length B of the valve body after the first valve body 1 and the second valve body 2 are connected as a whole can be adjusted, which helps to compensate for the design tolerance. The length A is greater than or equal to the length B, which reduces the risk that the one-way valve 100 cannot be installed in the mounting position when the limit deviation value B of the one-way valve 100 is greater than the axial length A of the mounting cavity.

[0036] 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 first valve body (1) and a second valve body (2). The first valve body (1) can be fixedly connected or limited to an external component. The first valve body (1) includes a first latch (31), and the second valve body (2) includes a second latch (32). The first latch (31) and the second latch (32) are limited to each other. The second valve body (2) includes a first abutment wall (21). The first abutment wall (21) is located on the circumferential outer wall of the second valve body (2). The first abutment wall (21) can abut against an external component. Along the axial direction of the one-way valve (100), the first abutment wall (21) has an angle with the axial direction of the one-way valve (100). The radial dimension of the first abutment wall (21) decreases in the direction away from the first valve body (1).

2. The one-way valve according to claim 1, characterized in that, The first abutting wall (21) is a conical surface, and the angle between the first abutting wall (21) and the axial direction of the one-way valve (100) is less than 90° and greater than or equal to 5°; or, the first abutting wall (21) is an arc surface.

3. The one-way valve according to claim 1, characterized in that, The one-way valve (100) includes a valve port (22) and an outlet (23). The one-way valve (100) has a valve cavity (4). The valve port (22) is able to communicate with the valve cavity (4). The outlet (23) is able to communicate with the valve cavity (4). The one-way valve (100) includes a valve core assembly (5). The valve core assembly (5) is located in the valve cavity (4). The valve core assembly (5) is able to abut against the valve port (22). The outlet (23) is located on the circumferential sidewall of the second valve body (2). The valve port (22) is away from the first valve body (1) relative to the outlet (23). Along the axial direction of the one-way valve (100), the first abutment wall (21) is away from the first valve body (1) relative to the outlet (23).

4. The one-way valve according to claim 3, characterized in that, The one-way valve (100) includes a first sealing portion (24) located at one end of the second valve body (2) away from the first valve body (1); the first sealing portion (24) includes a first sidewall portion (241) located on the circumferential outer sidewall of the first sealing portion (24); the first sealing portion (24) has a groove (242) with an opening in the first sidewall portion (241); the one-way valve (100) includes a first sealing element ( 6) At least a portion of the first seal (6) is located in the groove (242); the first sidewall portion (241) is connected to the first abutment wall (21), and the radial dimension of the first sidewall portion (241) is smaller than the minimum radial dimension of the first abutment wall (21); the angle between the first sidewall portion (241) and the axial direction of the one-way valve (100) is 0°; or, the first sidewall portion (241) is capable of abutting against an external component, and the first sidewall portion (241) is parallel or substantially parallel to the first abutment wall (21).

5. The one-way valve according to claim 3, characterized in that, The first valve body (1) includes a first receiving cavity (11), and the wall forming the first receiving cavity (11) includes a second side wall portion (12). The second side wall portion (12) circumferentially surrounds the second valve body (2). The first latch (31) protrudes from the second side wall portion (12) toward the side closer to the second valve body (2). The second latch (32) is located at one end of the second valve body (2) near the first valve body (1). At least a portion of the second latch (32) is located in the first receiving cavity (11). Along the axial direction of the one-way valve (100), the first latch (31) and the second latch (32) limit each other.

6. The one-way valve according to claim 3, characterized in that, The first latch (31) includes a first limiting surface (311), and the second latch (32) includes a second limiting surface (321). Along the axial direction of the one-way valve (100), the first limiting surface (311) is located at one end face of the first latch (31) away from the valve port (22), and the second limiting surface (321) is located at one end face of the second latch (32) close to the valve port (22). Along the axial direction of the one-way valve (100), there is a movable gap between the first limiting surface (311) and the second limiting surface (321), and the maximum gap is 0.9 mm.

7. The one-way valve according to claim 5, characterized in that, The second valve body (2) includes a main body (25) and a connecting part (26). The main body (25) is connected to the valve port (22), and the connecting part (26) is connected to the main body (25). The second latch (32) is connected to the connecting part (26). Along the axial direction of the one-way valve (100), the second latch (32) is located on one side of the first latch (31), and the main body (25) is located on the other side of the second latch (32). The second valve body (2) includes a stop The stop part (27) has a fixed end (271) at one end, which is connected to the connecting part (26) or the main body part (25). The other end of the stop part (27) is a cantilever end (272), which is closer to the first buckle (31) relative to the fixed end (271). With the fixed end (271) of the stop part (27) as the fulcrum, the cantilever end (272) of the stop part (27) can move under the action of external force.

8. A fluid control component, characterized in that, The fluid control assembly (200) includes a one-way valve (100) and a flow channel plate (8). The flow channel plate (8) includes a mounting cavity (81), and at least a portion of the one-way valve (100) is located in the mounting cavity (81). The one-way valve (100) includes a first valve body (1) and a second valve body (2). The first valve body (1) is fixedly connected or limitedly connected to the flow channel plate (8). The first valve body (1) includes a first latch (31), and the second valve body (2) includes a second latch (32). The first latch (31) and the second latch (32) are limitedly connected. The second valve body (2)... The first abutment wall (21) is located on the circumferential outer wall of the second valve body (2); the wall forming the mounting cavity (81) includes a second abutment wall (84), which faces the first abutment wall (21). Along the axial direction of the one-way valve (100), the first abutment wall (21) and the one-way valve (100) have an angle. The radial dimension of the first abutment wall (21) decreases in the direction away from the first valve body (1), and the first abutment wall (21) can abut against the second abutment wall (84).

9. The fluid control assembly according to claim 8, characterized in that, The second abutment wall (84) has an angle relative to the axial direction of the mounting cavity (81), and the second abutment wall (84) is parallel or approximately parallel to the first abutment wall (21).

10. The fluid control assembly according to claim 9, characterized in that, The wall forming the mounting cavity (81) has a limiting groove (85), the fluid control assembly (200) includes a retaining ring (9), at least a portion of which is located in the limiting groove (85), the retaining ring (9) being located on the side of the first valve body (1) away from the second valve body (2); the flow channel plate (8) includes a limiting portion (86), the wall forming the mounting cavity (81) includes a second sealing portion (87), the one-way valve (100) includes a second seal (7), the second sealing portion (87) surrounding the first valve body (1) along the radial direction of the one-way valve (100), the second seal (7) being located between the first valve body (1) and the second sealing portion (87); the limiting portion (86) extends from the second sealing portion (87) toward the central axis of the one-way valve (100); along the axial direction of the one-way valve (100), the first valve body (1) has The valve has a first end face (13) and a second end face (14). The first end face (13) and the second end face (14) are arranged opposite to each other along the axial direction of the one-way valve (100). The first end face (13) is limited to the retaining ring (9), and the second end face (14) is limited to the limiting part (86). The first buckle (31) includes a first limiting surface (311), and the second buckle (32) includes a second limiting surface (321). Along the axial direction of the one-way valve (100), the first limiting surface (311) is located at the end face of the first buckle (31) away from the first abutment wall (21), and the second limiting surface (321) is located at the end face of the second buckle (32) close to the first abutment wall (21). Along the axial direction of the one-way valve (100), there is a movable gap between the first limiting surface (311) and the second limiting surface (321).

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