Valve

Abstract

The valve comprises a valve seat assembly, a first core iron and a coil assembly, the valve seat assembly is provided with a first circulation channel and a second circulation channel, the first core iron is provided with a third circulation channel, and the second circulation channel can be communicated with the first circulation channel. The second circulation channel can be communicated with the third circulation channel, the valve seat assembly comprises a sleeve part, the sleeve part is arranged on the first core iron in a sleeving mode, the coil assembly comprises a framework, the framework is arranged on the first core iron in a sleeving mode, and the framework is in interference fit with the first core iron. The valve comprises the valve seat assembly, the first core iron and the coil assembly, the valve seat assembly comprises the sleeve part, the sleeve part is arranged on the first core iron in a sleeved mode, the coil assembly comprises the framework, the framework is arranged on the first core iron in a sleeved mode, the framework is in interference fit with the first core iron, in the valve assembling process, the deformation of the first core iron is small, and the assembling reliability of the framework is improved.

Description

Technical Field

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

[0002] A valve includes a valve seat, a sleeve, an upper core iron, and a lower core iron. One end of the sleeve is fitted onto the valve seat, the lower core iron is located inside the sleeve, and the other end of the sleeve is fitted onto the upper core iron. The sleeve and the upper core iron are connected by riveting.

[0003] The valve also includes a coil assembly, which includes a skeleton that is fitted onto a sleeve. The skeleton and the sleeve are interference-fitted so that the skeleton is assembled onto the sleeve. The reliability of the skeleton assembly needs to be further improved. Utility Model Content

[0004] To address the reliability issue in skeleton assembly, a valve is provided that can improve the reliability of skeleton assembly. The technical solution adopted is as follows:

[0005] A valve includes a valve seat assembly, a first core iron, and a coil assembly. The valve seat assembly has a first flow channel and a second flow channel, and the first core iron has a third flow channel. The second flow channel can communicate with the first flow channel and the third flow channel. The valve seat assembly includes a sleeve portion that is sleeved on the first core iron. The coil assembly includes a frame that is sleeved on the first core iron and is interference-fitted with the first core iron.

[0006] The valve provided by this utility model includes a valve seat assembly, a first core iron, and a coil assembly. The valve seat assembly includes a sleeve portion that is fitted onto the first core iron. The coil assembly includes a frame that is fitted onto the first core iron. The frame and the first core iron are interference-fitted. During valve assembly, the deformation of the first core iron is small, which improves the reliability of the frame assembly. Attached Figure Description

[0007] Figure 1 This is a partial cross-sectional view of the valve in this utility model;

[0008] Figure 2 This is a partial top view of the valve in this utility model;

[0009] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction;

[0010] Figure 4 This is a cross-sectional view of the skeleton in this utility model.

[0011] Figure label:

[0012] First part 111, first flow channel 1111, second part 112, second flow channel 1121, sleeve part 121, first step part 122, covering part 123.

[0013] First core iron 2, third circulation channel 21

[0014] Frame 31, first main body 311, first protrusion 312, first wall 3121, second protrusion 313, second wall 3131, third protrusion 314, third wall 3141, winding 32.

[0015] Magnetic conductor 4, first end 41, second end 42.

[0016] Second core 5, first receiving groove 51, second receiving groove 52

[0017] First elastic element 6, first sealing element 7, second sealing element 8. Detailed Implementation

[0018] The technical solution of the specific implementation method is described below with reference to the accompanying drawings.

[0019] It should be noted that although this specification has described the present utility model in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify, combine or make equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the present utility model.

[0020] Automotive air suspension is an advanced suspension system that uses the compression and release of air to adjust vehicle height and suspension stiffness, providing enhanced ride comfort and suspension performance. Compared to traditional leaf spring and shock absorber suspension systems, air suspension offers a wider range of adjustment and greater flexibility.

[0021] An air suspension system consists of the following main components:

[0022] Air pressure supply device: This device typically consists of a compressor and cylinders, used to generate and regulate gas pressure. The compressor compresses the gas and delivers it to the cylinders for use by the suspension system.

[0023] Gas storage tanks: Gas storage tanks are used to store compressed gases. They are typically located in a suitable position on the vehicle chassis and connected to the suspension system via pipes.

[0024] Airbags / Air Springs: Airbags or air springs are elastic components that connect the vehicle body and chassis. They use gas as a medium and have adjustable stiffness and elasticity. Airbags can be inflated or deflated as needed to change the height and stiffness of the suspension system.

[0025] Sensors and controllers: Sensors are used to monitor the vehicle's attitude and dynamic parameters, such as vehicle height, acceleration, and speed. The controller, based on feedback signals from the sensors, regulates the inflow and outflow of air by adjusting solenoid valves or solenoid valve assemblies, thereby adjusting the suspension system.

[0026] Solenoid valve: The solenoid valve controls the flow of gas. According to the input of the control signal, it opens or closes the gas passage and regulates the gas in and out, thereby realizing the adjustment of the height and stiffness of the suspension system.

[0027] This application provides a valve that can be used in automotive air suspension systems.

[0028] refer to Figures 1-3 A valve includes a valve seat assembly, a first core iron 2, and a coil assembly. The valve seat assembly has a first flow channel 1111 and a second flow channel 1121. The first core iron 2 has a third flow channel 21. The second flow channel 1121 can communicate with the first flow channel 1111 and the second flow channel 1121 can communicate with the third flow channel 21. The valve seat assembly includes a sleeve portion 121, which is sleeved on the first core iron 2. The coil assembly includes a frame 31, which is sleeved on the first core iron 2 and is interference-fitted with the first core iron 2.

[0029] In related technologies, the skeleton 31 and the sleeve part 121 are interference-fitted, and the sleeve part 121 is connected to the first core iron 2 by riveting. The sleeve part 121 will deform, causing the interference between the sleeve part 121 and the skeleton 31 to deviate. The reliability of the skeleton 31 installation needs to be further improved.

[0030] The valve provided by this utility model includes a valve seat assembly, a first core iron 2, and a coil assembly. The valve seat assembly includes a sleeve portion 121, which is sleeved on the first core iron 2. The coil assembly includes a frame 31, which is sleeved on the first core iron 2. The frame 31 and the first core iron 2 are interference-fitted. During the valve assembly process, the deformation of the first core iron 2 is small, which improves the reliability of the frame 31 assembly.

[0031] refer to Figures 3-4The frame 31 includes a first main body 311, a first protrusion 312, a second protrusion 313, and a third protrusion 314. The first protrusion 312, the second protrusion 313, and the third protrusion 314 protrude from the inner peripheral wall of the first main body 311. The first protrusion 312 has a first wall portion 3121 opposite to the first core iron 2. The second protrusion 313 has a second wall portion 3131 opposite to the first core iron 2. The third protrusion 314 has… There is a third wall portion 3141, which is opposite to the first core iron 2. The first wall portion 3121, the second wall portion 3131 and the third wall portion 3141 are equidistant from each other in the circumferential direction on the inner peripheral wall of the first main body portion 311. The circle passing through the center point of the first wall portion 3121, the center point of the second wall portion 3131 and the center point of the third wall portion 3141 is defined as the first circle. The diameter of the first circle is D1 and the outer diameter of the first core iron 2 is D2. 0.03mm≤D2-D1≤0.08mm.

[0032] Of course, the number of protrusions can be 4, 5, 6, etc., which will not be elaborated here.

[0033] refer to Figure 1 The valve seat assembly includes a sleeve, which includes a sleeve portion 121 and a first stepped portion 122. The sleeve portion 121 protrudes from the first stepped portion 122. The valve includes a magnetic conductor 4, which includes a first end portion 41. The first end portion 41 is sleeved on the sleeve portion 121. The first stepped portion 122 is located on one side of the first end portion 41. The frame 31 is located on the side of the first end portion 41 opposite to the first stepped portion 122.

[0034] refer to Figure 1 The sleeve includes a covering part 123 and a first stepped part 122 located between the covering part 123 and the sleeve part 121. The covering part 123, the first stepped part 122 and the sleeve part 121 are an integral part. The covering part 123 is adapted to the external valve mounting groove (the groove for valve installation). When the valve is installed, a sealing ring is provided between the covering part 123 and the external valve mounting groove to reduce gas leakage. This will not be elaborated here.

[0035] The sleeve portion 121 is welded to the first core iron 2. The first core iron 2 is manufactured with high precision. The sleeve portion 121 is welded to the first core iron 2. The deformation of the sleeve portion 121 is small. The coil assembly has a shell (not shown in the figure). The shell covers the frame 31, winding 32 (described below) and magnetic conductive parts, etc. The shell is provided with mounting holes. The valve is connected to the mounting point of the external valve through the mounting holes. When the frame 31 and the first core iron 2 are interference-fitted, the sealing performance of the covering portion 123 and the mounting groove of the external valve is guaranteed.

[0036] refer to Figure 1The valve includes a second core iron 5 and a first elastic element 6. A sleeve portion 121 is fitted onto the second core iron 5. A portion of the first elastic element 6 is fitted onto the first core iron 2, and the other portion of the first elastic element 6 is fitted onto the second core iron 5. When the valve is energized, the second core iron 5 moves toward the first core iron 2 under the action of electromagnetic force, and the first elastic element 6 (e.g., a spring) is compressed. When the valve is de-energized, the second core iron 5 moves away from the first core iron 2 under the action of the first elastic element 6.

[0037] The sleeve portion 121 is welded to the first core iron 2, which reduces the deformation of the sleeve portion 121, reduces the possibility of jamming during the movement of the second core iron 5, and improves the sealing performance.

[0038] refer to Figure 1 In the axial direction of the first core iron 2, the third flow channel 21 passes through the first core iron 2. The valve includes a first seal 7. The second core iron 5 has a first receiving groove 51. The first receiving groove 51 is recessed at the end of the second core iron 5 near the first core iron 2. The first seal 7 is at least partially located in the first receiving groove 51. The first seal 7 is opposite to the third flow channel 21. When the valve is energized, the first seal 7 seals the end of the third flow channel 21 near the second core iron 5.

[0039] refer to Figure 1 The valve seat assembly includes a base located on the side of the second core iron 5 opposite to the first core iron 2. The valve includes a second seal 8. The second core iron 5 has a second receiving groove 52 recessed at the end of the second core iron 5 opposite to the first core iron 2. The second seal 8 is at least partially located in the second receiving groove 52. The base includes a first part 111 through which a first flow channel 1111 passes. The second seal 8 is opposite to the first flow channel 1111. When the valve is de-energized, the second seal 8 seals the end of the first flow channel 1111 near the second core iron 5.

[0040] refer to Figure 1 The base includes a second part 112, which protrudes from the outer peripheral wall of the first part 111. A portion of the first part 111 is located on one side of the second part 112, and another portion of the first part 111 is located on the other side of the second part 112. The first part 111 is generally frustum-shaped. A second flow channel 1121 passes through the second part 112. There are at least two second flow channels 1121, which are arranged along the outer periphery of the first flow channel 1111.

[0041] When the valve is energized, gas can flow from the first flow channel 1111 into the second flow channel 1121. When the valve is de-energized, gas can flow from the second flow channel 1121 through the gap between the second core iron 5 and the sleeve part 121 into the third flow channel 21. This will not be elaborated here.

[0042] refer to Figure 1 The magnetic conductor 4 includes a second end 42, which is sleeved on the first core iron 2. The frame 31 is located between the first end 41 and the second end 42. The coil assembly includes a winding 32, which is sleeved on the frame 31.

[0043] Although the technical solutions of this utility model have been shown and described above, it is understood that the above technical solutions are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions and variations of the above technical solutions are within the protection scope of this utility model.

Claims

1. A valve characterized by, The valve seat assembly, the first core iron (2) and the coil assembly, the valve seat assembly has a first flow passage (1111) and a second flow passage (1121), the first core iron (2) has a third flow passage (21), the second flow passage (1121) can communicate with the first flow passage (1111), the second flow passage (1121) can communicate with the third flow passage (21), the valve seat assembly includes a sleeve part (121), the sleeve part (121) is sleeved on the first core iron (2), the coil assembly includes a skeleton (31), the skeleton (31) is sleeved on the first core iron (2), and the skeleton (31) is in interference fit with the first core iron (2).

2. The valve of claim 1, wherein The skeleton (31) includes a first body part (311), a first protruding part (312), a second protruding part (313) and a third protruding part (314), the first protruding part (312), the second protruding part (313) and the third protruding part (314) protrude from the inner peripheral wall of the first body part (311), the first protruding part (312) has a first wall part (3121), the first wall part (3121) is opposite to the first core iron (2), the second protruding part (313) has a second wall part (3131), the second wall part (3131) is opposite to the first core iron (2), the third protruding part (314) has a third wall part (3141), the third wall part (3141) is opposite to the first core iron (2), a circle passing through the center point of the first wall part (3121), the center point of the second wall part (3131) and the center point of the third wall part (3141) is defined as a first circle, the diameter of the first circle is D1, the outer diameter of the first core iron (2) is D2, and 0.03mm≤D2-D1≤0.08mm.

3. The valve of claim 2, wherein The sleeve part (121) is welded with the first core iron (2).

4. The valve of claim 3, wherein The valve seat assembly includes a sleeve, the sleeve includes the sleeve part (121) and a first step part (122), the sleeve part (121) protrudes from the first step part (122), the valve includes a magnet conductor (4), the magnet conductor (4) includes a first end part (41), the first end part (41) is sleeved on the sleeve part (121), the first step part (122) is located on one side of the first end part (41), and the skeleton (31) is located on the side, away from the first step part (122), of the first end part (41).

5. The valve of claim 4, wherein The sleeve includes a cladding part (123), the first step part (122) is located between the cladding part (123) and the sleeve part (121), the cladding part (123), the first step part (122) and the sleeve part (121) are an integral piece, and the cladding part (123) is matched with an external valve mounting groove.

6. Valve according to any of claims 1-5, characterized in that The valve comprises a second core iron (5) and a first elastic member (6), the sleeve part (121) is sleeved on the second core iron (5), and one part of the first elastic member (6) is sleeved on the first core iron (2) and the other part of the first elastic member (6) is sleeved on the second core iron (5).

7. The valve of claim 6, wherein In the axial direction of the first core iron (2), the third flow-through channel (21) penetrates the first core iron (2), the valve comprises a first sealing member (7), the second core iron (5) has a first accommodating groove (51) recessed at one end of the second core iron (5) close to the first core iron (2), and the first sealing member (7) is at least partially located in the first accommodating groove (51), and the first sealing member (7) is opposite to the third flow-through channel (21).

8. The valve of claim 6, wherein The valve seat assembly comprises a base located on the side of the second core iron (5) away from the first core iron (2), the valve comprises a second sealing member (8), the second core iron (5) has a second accommodating groove (52) recessed at one end of the second core iron (5) away from the first core iron (2), and the second sealing member (8) is at least partially located in the second accommodating groove (52), the base comprises a first part (111), the first flow-through channel (1111) penetrates the first part (111), and the second sealing member (8) is opposite to the first flow-through channel (1111).

9. The valve of claim 8, wherein, The base comprises a second part (112) protruding from the outer peripheral wall of the first part (111), one part of the first part (111) is located on one side of the second part (112), the other part of the first part (111) is located on the other side of the second part (112), the second flow-through channel (1121) penetrates the second part (112), the number of the second flow-through channels (1121) is at least two, and the second flow-through channels (1121) are arranged along the outer periphery of the first flow-through channel (1111).

10. Valve according to claim 4 or 5, characterized in that The magnet conductor (4) comprises a second end part (42) sleeved on the first core iron (2), the skeleton (31) is located between the first end part (41) and the second end part (42), the coil assembly comprises a winding (32) sleeved on the skeleton (31), and the first wall part (3121), the second wall part (3131) and the third wall part (3141) are equidistantly arranged in the circumferential direction of the inner peripheral wall of the first main body part (311).

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