Air spring end cover, footstock assembly, air spring and vehicle

Abstract

The utility model discloses an air spring end cover, a footstock assembly, an air spring and a vehicle wherein the air spring end cover comprises: an end cover body having an inner side and an outer side; the electric connecting piece is connected with the end cover body, the electric connecting piece is provided with a first conductive section and a second conductive section, the first conductive section is located on the outer side of the end cover body and used for being electrically connected with an external circuit, and the second conductive section is located on the inner side of the end cover body and used for being electrically connected with the external circuit. And the second conductive section is used for being electrically connected with an internal circuit of the air spring. According to the air spring end cover, the electric connecting piece is arranged on the end cover body, so that an internal circuit of the air spring can be led out through the air spring end cover, the air spring end cover can be suitable for the air spring of a built-in electromagnetic valve shock absorber, the structural compactness of the air spring can be improved, and the space arrangement of a vehicle is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle accessories, and in particular relates to an air spring end cover, a top seat assembly, an air spring and a vehicle. Background Art

[0002] Air springs are vibration-damping components used in trains, cars and other fields to reduce vibration during vehicle travel and improve ride comfort. Existing air springs used in vehicles mainly include air springs with built-in solenoid valve shock absorbers and air springs with external solenoid valve shock absorbers. The end of the shock absorber piston rod of the air spring with built-in solenoid valve shock absorber is located on the outside of the air spring, and the control circuit of the solenoid valve is led out from the end of the piston rod. However, the air spring of this structure is sealed by a sealing membrane, which is relatively expensive. The air spring of the external solenoid valve shock absorber has an end cover, which achieves the purpose of sealing by setting a sealing structure between the end cover and the top seat of the air spring. However, the compactness of this structure is poor, and the end cover of this structure is not suitable for the air spring with built-in solenoid valve shock absorber. Utility Model Content

[0003] The first object of the utility model is to provide a new technical solution for an air spring end cover, which can at least solve the technical problem that the existing air spring end cover cannot be applied to an air spring with a built-in solenoid valve shock absorber.

[0004] The second object of the utility model is to provide a new technical solution for the top seat assembly.

[0005] The third object of the utility model is to provide a new technical solution for an air spring.

[0006] A fourth object of the present invention is to provide a new technical solution for a vehicle.

[0007] According to a first aspect of the utility model, an air spring end cover is provided, comprising: an end cover body, the end cover body having an inner side and an outer side; an electrical connector, the electrical connector being connected to the end cover body, the electrical connector having a first conductive segment and a second conductive segment, wherein the first conductive segment is located on the outer side of the end cover body, the first conductive segment is used to be electrically connected to an external circuit, and the second conductive segment is located on the inner side of the end cover body, the second conductive segment is used to be electrically connected to an internal circuit of the air spring.

[0008] Optionally, the first conductive segment and the second conductive segment are both formed as conductive columns; a plug hole is provided at one end of the first conductive segment away from the second conductive segment, and the plug hole is used to connect to an external circuit; and / or a plug hole is provided at one end of the second conductive segment away from the first conductive segment, and the plug hole is used to connect to an internal circuit of the air spring.

[0009] Optionally, the first conductive segment is connected to the end cover body, a flexible conductive segment is provided between the first conductive segment and the second conductive segment, and the flexible conductive segment is located on the inner side of the end cover body.

[0010] Optionally, the flexible conductive segment has at least one bending segment.

[0011] According to a second aspect of the utility model, a top seat assembly is provided, comprising: the above-mentioned air spring end cover.

[0012] Optionally, the top seat assembly also includes: a top seat body, a receiving groove is provided on the first side of the top seat body, a main air chamber is provided on the second side of the top seat body, a through hole is provided between the receiving groove and the main air chamber to communicate with each other, the end cover body is provided on the first side of the top seat body, and a secondary air chamber is defined between the inner side of the end cover body and the inner wall surface of the receiving groove, and the secondary air chamber is communicated with the main air chamber; a piston rod, a first end of the piston rod is provided in the secondary air chamber, and a second end of the piston rod passes through the through hole and is located in the main air chamber; a sealing member, the sealing member is provided between the end cover body and the top seat body to fill the gap between the end cover body and the top seat body.

[0013] Optionally, the top seat assembly also includes: a top rubber, the top rubber is arranged in the accommodating groove, the top rubber sleeve is arranged on the piston rod, the top rubber is connected to the piston rod, the top rubber has a first annular surface and a second annular surface distributed along its axial direction, the entirety of the first annular surface abuts against the top seat body, and the entirety of the second annular surface abuts against the end cover body.

[0014] Optionally, the top rubber is provided with a vent hole penetrating along its axial direction, and the vent hole is located on the inner periphery of the first annular surface and the second annular surface.

[0015] Optionally, a socket portion is provided at the first end of the piston rod, the socket portion is used to be electrically connected to an internal circuit of the air spring, and the second conductive segment is plugged into the socket portion.

[0016] Optionally, a mounting groove is provided on the first side of the top seat body, a clamping groove is provided on the circumferential wall of the mounting groove, the accommodating groove is located in the mounting groove, the outer circumferential surface of the end cover body and the circumferential wall of the mounting groove define the gap, and the top seat assembly also includes: an annular pressure plate, which is provided on the side of the seal away from the bottom surface of the mounting groove; and a retaining spring, which is provided on the side of the annular pressure plate away from the seal, the retaining spring is clamped in the clamping groove, and the retaining spring abuts against the annular pressure plate.

[0017] Optionally, a side of the sealing member away from the annular pressure plate abuts against the end cover body; and / or a side of the annular pressure plate away from the retaining spring abuts against the end cover body.

[0018] According to a third aspect of the utility model, an air spring is provided, comprising: the above-mentioned air spring end cover or top seat assembly.

[0019] According to a fourth aspect of the utility model, a vehicle is provided, comprising the above-mentioned air spring.

[0020] According to the air spring end cover of the utility model, by arranging an electrical connector on the end cover body, the first conductive segment of the electrical connector is arranged on the outside of the end cover body, and the second conductive segment of the electrical connector is arranged on the outside of the end cover body, the air spring end cover can lead out the internal circuit of the air spring, can be suitable for air springs with built-in solenoid valve shock absorbers, can improve the structural compactness of the air spring, and is beneficial to the spatial layout of the vehicle.

[0021] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] Figure 1 It is a structural schematic diagram of an air spring end cover according to an embodiment of the utility model;

[0024] Figure 2 is a cross-sectional view of an air spring end cover according to an embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a top seat assembly according to an embodiment of the utility model;

[0026] Figure 4 This is a structural exploded diagram of a top seat assembly according to an embodiment of the utility model;

[0027] Figure 5 is a cross-sectional view of a top seat body of a top seat assembly according to an embodiment of the utility model;

[0028] Figure 6 It is a schematic structural diagram of a top glue of a top seat body according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] Top seat assembly 100;

[0031] Air spring end cap 10;

[0032] End cover body 11; auxiliary air chamber 11a; flange portion 111; electrical connector 12; first conductive segment 121; plug hole 121a; second conductive segment 122; flexible conductive segment 123;

[0033] The top seat body 20; the receiving groove 21; the mounting groove 22; the clamping groove 22a; the main air chamber 23;

[0034] Sealing member 30; annular pressure plate 40; retaining spring 50;

[0035] Top rubber 60; elastic main body 61; annular plate body 62; vent hole 621;

[0036] Piston rod 70; nut 80. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] The air spring end cover 10 according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0043] like Figures 1 to 3 As shown, the air spring end cover 10 according to the embodiment of the utility model includes: an end cover body 11 and an electrical connector 12.

[0044] Specifically, the end cover body 11 has an inner side and an outer side, the electrical connector 12 is connected to the end cover body 11, and the electrical connector 12 has a first conductive segment 121 and a second conductive segment 122, wherein the first conductive segment 121 is located on the outer side of the end cover body 11, and the first conductive segment 121 is used to be electrically connected to an external circuit, and the second conductive segment 122 is located on the inner side of the end cover body 11, and the second conductive segment 122 is used to be electrically connected to an internal circuit of the air spring.

[0045] In other words, if Figures 1 to 3 As shown, the air spring end cover 10 according to the embodiment of the utility model can be applied to an air spring with a built-in solenoid valve shock absorber, and the air spring mainly includes an end cover body 11 and an electrical connector 12, wherein the end cover body 11 can be formed as an injection molding structure, the end cover body 11 has a first side and a second side arranged opposite to each other, the first side of the end cover body 11 can be the outer side of the end cover body 11, and the second side of the end cover body 11 can be the inner side of the end cover body 11, the electrical connector 12 is connected to the end cover body 11, and the electrical connector 12 is configured to be able to lead out the internal circuit of the air spring.

[0046] Specifically, the electrical connector 12 passes through the end cover body 11, and mainly includes a first conductive segment 121 and a second conductive segment 122. The first conductive segment 121 is located on the outside of the end cover body 11, and the second conductive segment 122 is located on the inside of the end cover body 11, so that the first conductive segment 121 can be connected to an external circuit, such as a control circuit of a vehicle, and the second conductive segment 122 can be connected to an internal circuit of the air spring, such as a control circuit of a solenoid valve of a shock absorber.

[0047] Therefore, according to the air spring end cover 10 of the embodiment of the utility model, by arranging the electrical connector 12 on the end cover body 11, the first conductive segment 121 of the electrical connector 12 is arranged on the outside of the end cover body 11, and the second conductive segment 122 of the electrical connector 12 is arranged on the outside of the end cover body 11, the air spring end cover 10 can lead out the internal circuit of the air spring, can be suitable for air springs with built-in solenoid valve shock absorbers, can improve the structural compactness of the air spring, and is beneficial to the spatial layout of the vehicle.

[0048] According to an embodiment of the present invention, the first conductive segment 121 and the second conductive segment 122 are both formed as conductive columns; a plug hole 121a is provided at one end of the first conductive segment 121 away from the second conductive segment 122, and the plug hole 121a is used to connect to an external circuit; and / or, a plug hole 121a is provided at one end of the second conductive segment 122 away from the first conductive segment 121, and the plug hole 121a is used to connect to an internal circuit of the air spring.

[0049] That is to say, Figure 1 and Figure 3As shown, the first conductive segment 121 can be formed as a conductive column. The first conductive segment 121 can be provided with a plug hole 121a at one end away from the second conductive segment 122 according to actual needs. The connector of the external circuit can be plugged into the plug hole 121a, thereby realizing the connection between the first conductive segment 121 and the external circuit, which is convenient for assembly.

[0050] Furthermore, if Figure 1 and Figure 3 As shown, the second conductive segment 122 is formed as a conductive column, and the second conductive segment 122 can be plugged into the interface of the internal circuit of the air spring by plugging, which has a simple structure and is convenient for production and subsequent assembly.

[0051] Of course, the second conductive segment 122 can also be provided with a plug hole 121a at an end away from the first conductive segment 121 according to actual needs. The connector of the internal circuit of the air spring can be plugged into the plug hole 121a, thereby realizing the connection between the second conductive segment 122 and the internal circuit of the air spring, which is convenient for assembly.

[0052] In some specific embodiments of the present invention, the first conductive segment 121 is connected to the end cover body 11 , a flexible conductive segment 123 is provided between the first conductive segment 121 and the second conductive segment 122 , and the flexible conductive segment 123 is located on the inner side of the end cover body 11 .

[0053] In other words, if Figure 1 and Figure 2 As shown, the electrical connector 12 according to the embodiment of the utility model includes a first conductive segment 121, a second conductive segment 122 and a flexible conductive segment 123, wherein the first conductive segment 121 is located on the outside of the end cover body 11, and one end of the first conductive segment 121 is embedded and connected to the end cover body 11, which can fix the first conductive segment 121 and facilitate the connection of the first conductive segment 121 with an external circuit. The flexible conductive segment 123 and the second conductive segment 122 are both located on the inner side of the end cover body 11, and the flexible conductive segment 123 is located between the first conductive segment 121 and the second conductive segment 122, the first end of the flexible conductive segment 123 is connected to the first conductive segment 121, and the second end of the flexible conductive segment 123 is connected to the second conductive segment 122.

[0054] Therefore, the provision of the flexible conductive segment 123 facilitates the second conductive segment 122 to swing relative to the end cover body 11, which can effectively prevent the electrical connector 12 from breaking, thereby ensuring the reliability of the electrical connector 12 and the performance and reliability of the air spring.

[0055] According to an embodiment of the present invention, the flexible conductive segment 123 has at least one bending segment.

[0056] like Figures 1 to 3As shown, in order to prevent the second conductive segment 122 from being damaged in the process of deflection of the electrical connector 12, the flexible conductive segment 123 can be set to a relatively long length. Specifically, when the air spring end cover 10 is installed on the top seat body 20 of the air spring, the distance between the first conductive segment 121 and the second conductive segment 122 and the internal circuit connection of the air spring is less than the length of the flexible conductive segment 123. At this time, the flexible conductive segment 123 has one or more bending segments.

[0057] Therefore, when the second conductive segment 122 deflects, the bending segment can keep the flexible conductive segment 123 in a relaxed state, which can effectively prevent the connection between the flexible conductive segment 123 and the first conductive segment 121 or the second conductive segment 122 from breaking, thereby ensuring the reliability of the electrical connector 12 and the performance and reliability of the air spring.

[0058] In some specific embodiments of the present invention, a sealant is provided at the connection between the electrical connector 12 and the end cover body 11 .

[0059] Specifically, the electrical connector 12 and the end cover body 11 can be glued and vulcanized into one. Specifically, the end of the first conductive segment 121 close to the second conductive segment 122 is glued and vulcanized into one with the end cover body 11, and the end of the flexible conductive segment 123 close to the first conductive segment 121 is glued and vulcanized into one with the end cover body 11. After glueing and vulcanization, a sealant is formed at the connection between the electrical connector 12 and the end cover body 11.

[0060] Therefore, the sealant at the connection between the electrical connector 12 and the end cover body 11 can improve the sealing performance of the connection between the electrical connector 12 and the end cover body 11, thereby ensuring the performance of the air spring.

[0061] In summary, according to the air spring end cover 10 of the embodiment of the utility model, by arranging the electrical connector 12 on the end cover body 11, the first conductive segment 121 of the electrical connector 12 is arranged on the outside of the end cover body 11, and the second conductive segment 122 of the electrical connector 12 is arranged on the outside of the end cover body 11, the air spring end cover 10 can lead out the internal circuit of the air spring, can be suitable for air springs with built-in solenoid valve shock absorbers, can improve the structural compactness of the air spring, and is beneficial to the spatial layout of the vehicle.

[0062] like Figures 3 to 6 As shown, the embodiment of the utility model further provides a top seat assembly 100, including the air spring end cover 10 described in any of the above embodiments. Since the air spring end cover 10 of the embodiment of the utility model has the above effects, the air spring according to the embodiment of the utility model also has corresponding technical effects, which will not be described in detail in this embodiment.

[0063] In some specific embodiments of the present utility model, the top seat assembly 100 also includes: a top seat body 20, a piston rod 70 and a sealing member 30, a first side of the top seat body 20 is provided with a receiving groove 21, a second side of the top seat body 20 is provided with a main air chamber 23, a through hole 24 is provided between the receiving groove 21 and the main air chamber 23 to communicate with each other, an end cover body 11 is provided on the first side of the top seat body 20, a secondary air chamber 11a is defined between the inner side of the end cover body 11 and the inner wall surface of the receiving groove 21, the secondary air chamber 11a is communicated with the main air chamber 23, a first end of the piston rod 70 is provided in the secondary air chamber 11a, and a second end of the piston rod 70 is located in the main air chamber 23 through the through hole, and a sealing member 30 is provided between the end cover body 11 and the top seat body 20 to fill the gap between the end cover body 11 and the top seat body 20.

[0064] In other words, if Figures 3 to 6 As shown, the top seat assembly 100 according to the embodiment of the utility model mainly includes a top seat body 20, an air spring end cover 10, a piston rod 70 and a sealing member 30, wherein the top seat body 20 is roughly formed as a cylindrical structure, and the top seat body 20 has a first side and a second side oppositely arranged in its axial direction, a receiving groove 21 is provided on the first side of the top seat body 20, a main air chamber 23 is provided on the second side of the top seat body 20, and a through hole 24 is provided between the receiving groove 21 and the main air chamber 23 of the top seat body 20, and the through hole 24 connects the receiving groove 21 and the main air chamber 23.

[0065] like Figure 3 As shown, the end cover body 11 is arranged on the first side of the top seat body 20, and the position of the end cover body 11 corresponds to the position of the receiving groove 21, so that the inner side of the end cover body 11 can define a secondary air chamber 11a with the inner wall surface of the receiving groove 21, and the first end of the piston rod 70 is arranged in the secondary air chamber 11a, and the second end of the piston rod 70 passes through the through hole and is located in the main air chamber 23. In this embodiment, the outer peripheral surface of the piston rod 70 and the inner wall surface of the through hole 24 are arranged in a gap, so that the secondary air chamber 11a is connected with the main air chamber 23; or the piston rod 70 can be provided with a connecting hole connecting the secondary air chamber 11a and the main air chamber 23.

[0066] Therefore, by connecting the auxiliary air chamber 11a with the main air chamber 23, the space between the end cover body 11 and the top seat body 20 can be fully utilized, expanding the gas holding capacity of the air spring, which is beneficial to improving the damping adjustment range of the air spring.

[0067] like Figure 3 As shown, in order to ensure the air tightness of the air spring, a seal 30 can be set between the end cover body 11 and the top seat body 20, so that the seal 30 can fill the gap between the end cover body 11 and the top seat body 20, thereby ensuring the air tightness of the air spring.

[0068] In this embodiment, the air spring can ensure its own air tightness through the seal 30 between the end cover body 11 and the top seat body 20. Compared with the sealing through the sealing valve membrane in the prior art, the sealing structure of the air spring in the embodiment of the utility model is not only simple in structure and low in production cost, which is beneficial to reducing the production cost of the air spring; but also the air tightness is not affected by the deflection of the air spring, which effectively reduces the possibility of sealing failure and can ensure the sealing durability of the air spring.

[0069] According to one embodiment of the utility model, the top seat assembly 100 also includes: a top rubber 60, the top rubber 60 is arranged in the accommodating groove 21, the top rubber 60 is sleeved on the piston rod 70, the top rubber 60 is connected to the piston rod 70, the top rubber 60 has a first annular surface and a second annular surface distributed along its axial direction, the entirety of the first annular surface abuts against the top seat body 20, and the entirety of the second annular surface abuts against the end cover body 11.

[0070] That is to say, Figure 3 As shown, the piston rod 70 can be fixed in the auxiliary air chamber 11a by the top rubber 60. Specifically, the top rubber 60 is sleeved on the part of the piston rod 70 located in the auxiliary air chamber, and the top rubber 60 is fixedly connected to the piston rod 70 by a nut 80. The top rubber 60 has a first annular surface and a second annular surface in the axial direction of the top seat body 20, wherein the entire first annular surface abuts against the top seat body 20, and the entire second annular surface abuts against the end cover body 11.

[0071] Thereby, the top rubber 60 can be fixed, thereby realizing the fixation of the piston rod 70. Moreover, the entire first annular surface abuts against the top seat body 20, and the entire second annular surface abuts against the end cover body 11, which can play a sealing role and effectively improve the reliability of the air spring.

[0072] In addition, the piston rod 70 may also be fixed to the auxiliary air chamber 11 a by other fixing structures, which will not be described in detail in this embodiment.

[0073] In some optional examples of the present invention, the top glue 60 is provided with a vent hole 621 penetrating along the axial direction thereof, and the vent hole 621 is located on the inner periphery of the first annular surface and the second annular surface.

[0074] like Figure 3 and Figure 6As shown, the top glue 60 includes an elastic main body portion 61 and an annular plate body portion 62, wherein the elastic main body portion 61 is formed into a cylindrical structure, the elastic main body portion 61 is provided with a through channel extending through its axial direction, the first annular surface and the second annular surface are both located on the elastic main body portion 61, the annular plate body portion 62 is provided in the through channel, the outer periphery of the annular plate body portion 62 is embedded in the elastic main body portion 61, the annular plate body portion 62 is sleeved on the piston rod 70, and the annular plate body portion 62 is also provided with an air vent 621 extending through its thickness direction, thereby connecting the spaces at both ends of the top glue 60, ensuring that the air pressure at both ends of the top glue 60 during operation can be balanced, and improving the durability of the top glue 60.

[0075] In some specific embodiments of the present invention, a socket portion is provided at the first end of the piston rod 70, and the socket portion is used to be electrically connected to the internal circuit of the air spring, and the second conductive segment 122 is plugged into the socket portion.

[0076] Specifically, Figure 3 As shown, a circuit electrically connected to the internal circuit of the air spring is provided in the piston rod 70 (not shown in the figure), and a socket portion is provided at the first end of the piston rod 70. The socket portion is prepared as a metal part with a socket at one end, and the socket portion is embedded in the first end of the piston rod 70. The socket portion is electrically connected to the circuit in the piston rod 70, so that the socket portion can be electrically connected to the internal circuit of the air spring.

[0077] During assembly, the second conductive segment 122 of the electrical connector 12 can be plugged into the socket portion to achieve connection between the electrical connector 12 and the internal circuit of the air spring, which has a simple structure and is easy to assemble.

[0078] According to one embodiment of the utility model, a mounting groove 22 is provided on the first side of the top seat body 20, a clamping groove 22a is provided on the circumferential wall surface of the mounting groove 22, the accommodating groove 21 is located in the mounting groove 22, and a gap is defined between the outer circumferential surface of the end cover body 11 and the circumferential wall surface of the mounting groove 22. The top seat assembly 100 also includes: an annular pressure plate 40 and a retaining spring 50. The annular pressure plate 40 is provided on the side of the sealing member 30 away from the bottom surface of the mounting groove 22, and the retaining spring 50 is provided on the side of the annular pressure plate 40 away from the sealing member 30. The retaining spring 50 is clamped in the clamping groove 22a, and the retaining spring 50 abuts against the annular pressure plate 40.

[0079] That is to say, Figure 3 and Figure 5As shown, a mounting groove 22 is provided on the first side of the top seat body 20, and the radial dimension of the mounting groove 22 is larger than the radial dimension of the accommodating groove 21, so that the accommodating groove 21 can be arranged in the mounting groove 22, and the radial dimension of the end cover body 11 is configured to be substantially the same as the radial dimension of the mounting groove 22, and the end cover body 11 is arranged in the mounting groove 22, and the sealing member 30 is configured as an annular rubber ring, and the sealing member 30 is sleeved on the end cover body 11, and the gap between the outer peripheral surface of the end cover body 11 and the inner wall surface of the mounting groove 22 can be filled by the sealing member 30.

[0080] like Figure 3 As shown, the side of the seal 30 away from the second side of the top seat body 20 is provided with an annular pressure plate 40, and the side of the annular pressure plate 40 away from the seal 30 is provided with a clamping spring 50, and the circumferential wall surface of the installation groove 22 is provided with a clamping groove 22a adapted to the clamping spring 50, and the clamping spring 50 can be clamped in the clamping groove 22a. When the clamping spring 50 is clamped in the clamping groove 22a, the clamping spring 50 abuts against the annular pressure plate 40, and the abutting force of the clamping spring 50 on the annular pressure plate 40 can act on the seal 30, and play a certain squeezing effect on the seal 30 in the height direction of the top seat body 20, which can make the seal 30 elastically deform, which is conducive to the seal 30 filling the gap between the outer peripheral surface of the end cover body 11 and the inner wall surface of the installation groove 22, and can ensure the reliability of the air spring.

[0081] In some specific embodiments of the present invention, the side of the seal 30 away from the annular pressure plate 40 abuts against the end cover body 11; and / or the side of the annular pressure plate 40 away from the retaining spring 50 abuts against the end cover body 11.

[0082] Specifically, the outer periphery of the end cover body 11 is provided with a flange portion 111 extending along its circumferential direction, and the flange portion 111 is located on the side of the seal 30 away from the pressure plate. When the retaining spring 50 is engaged with the retaining groove 22a, the side of the seal 30 away from the annular pressure plate 40 abuts against the flange portion 111 of the end cover body 11, which can fix the end cover body 11, thereby eliminating the need to set up other fixing structures to fix the end cover body 11, which is beneficial to simplifying the structure of the air spring.

[0083] Optionally, when the retaining spring 50 is engaged with the retaining groove 22 a , the side of the annular pressure plate 40 away from the retaining spring 50 abuts against the end cover body 11 , so that the end cover body 11 can be fixed by the annular pressure plate 40 .

[0084] The embodiment of the utility model further provides an air spring, comprising the air spring end cap 10 described in any of the above embodiments, or the top seat assembly 100 described in any of the above embodiments, and a shock absorber, the shock absorber having a solenoid valve and a piston, the piston being connected to the piston rod 70 described in any of the above embodiments, and the solenoid valve being electrically connected to the electrical connector 12. Since the air spring end cap 10 and the top seat assembly 100 of the embodiment of the utility model have the above effects, the air spring according to the embodiment of the utility model also has corresponding technical effects, which will not be described in detail in this embodiment.

[0085] The structure of the air spring according to the embodiment of the utility model is understandable and easy to implement for those skilled in the art, so this embodiment will not be described in detail.

[0086] An embodiment of the utility model further provides a vehicle, comprising the air spring described in any of the above embodiments. Since the air spring end cover 10 and the top seat assembly 100 of the embodiment of the utility model have the above effects, the vehicle according to the embodiment of the utility model also has the corresponding technical effects, which will not be repeated in this embodiment.

[0087] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An air spring end cover, characterized in that: include: an end cap body having an inner side and an outer side; An electrical connector, the electrical connector is connected to the end cover body, the electrical connector has a first conductive segment and a second conductive segment, wherein: The first conductive segment is located on the outside of the end cover body and is used to be electrically connected to an external circuit. The second conductive segment is located on the inside of the end cover body and is used to be electrically connected to an internal circuit of the air spring.

2. The air spring end cap according to claim 1, characterized in that: The first conductive segment and the second conductive segment are both formed as conductive pillars; An end of the first conductive segment away from the second conductive segment is provided with a plug hole, and the plug hole is used to connect to an external circuit; and / or, An inserting hole is provided at one end of the second conductive segment away from the first conductive segment, and the inserting hole is used to be connected to the internal circuit of the air spring.

3. The air spring end cap according to claim 1, characterized in that: The first conductive segment is connected to the end cover body, a flexible conductive segment is provided between the first conductive segment and the second conductive segment, and the flexible conductive segment is located on the inner side of the end cover body.

4. The air spring end cap according to claim 3, characterized in that: The flexible conductive segment has at least one bending segment.

5. The air spring end cover according to any one of claims 1 to 4, characterized in that: A sealant is provided at the connection between the electrical connector and the end cover body.

6. A top seat assembly, characterized in that: include: The air spring end cap according to any one of claims 1 to 5.

7. The top seat assembly according to claim 6, characterized in that: The top seat assembly also includes: A top seat body, wherein a receiving groove is provided on a first side of the top seat body, a main air chamber is provided on a second side of the top seat body, a through hole is provided between the receiving groove and the main air chamber to communicate with each other, the end cover body is provided on the first side of the top seat body, a secondary air chamber is defined between the inner side of the end cover body and the inner wall surface of the receiving groove, and the secondary air chamber is communicated with the main air chamber; A piston rod, wherein a first end of the piston rod is disposed in the auxiliary air chamber, and a second end of the piston rod passes through the through hole and is disposed in the main air chamber; A sealing member is disposed between the end cover body and the top seat body to fill a gap between the end cover body and the top seat body.

8. The top seat assembly according to claim 7, characterized in that: Also includes: A top rubber, wherein the top rubber is arranged in the accommodating groove, the top rubber sleeve is arranged in the piston rod, the top rubber is connected to the piston rod, the top rubber has a first annular surface and a second annular surface distributed along its axial direction, the entirety of the first annular surface abuts against the top seat body, and the entirety of the second annular surface abuts against the end cover body.

9. The top seat assembly according to claim 8, characterized in that: The top rubber is provided with a vent hole penetrating along its axial direction, and the vent hole is located on the inner periphery of the first annular surface and the second annular surface.

10. The top seat assembly according to claim 7, characterized in that: The first end of the piston rod is provided with a socket portion, the socket portion is used to be electrically connected to the internal circuit of the air spring, and the second conductive segment is plugged into the socket portion.

11. The top seat assembly according to claim 7, characterized in that: The first side of the top seat body is provided with a mounting groove, the circumferential wall surface of the mounting groove is provided with a clamping groove, the accommodating groove is located in the mounting groove, the outer circumferential surface of the end cover body and the circumferential wall surface of the mounting groove define the gap, and the top seat assembly further includes: an annular pressure plate, the annular pressure plate being arranged on a side of the sealing member away from the bottom surface of the mounting groove; The clamping spring is arranged on a side of the annular pressure plate away from the sealing member, the clamping spring is clamped in the clamping groove, and the clamping spring abuts against the annular pressure plate.

12. The top seat assembly according to claim 11, characterized in that: The side of the sealing member away from the annular pressure plate abuts against the end cover body; and / or, The side of the annular pressure plate away from the clamping spring abuts against the end cover body.

13. An air spring, characterized in that: include: An air spring end cap as claimed in any one of claims 1 to 5, or a top seat assembly as claimed in any one of claims 6 to 12.

14. A vehicle, characterized in that: Includes the air spring as described in claim 13.

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