Sealing devices, shock absorbers, suspension assemblies and vehicles

Abstract

This application relates to a sealing device, a shock absorber, a suspension assembly, and a vehicle. The shock absorber includes: an air spring having an air chamber; an actuator for adjusting the height of the air spring; and a sensor for detecting the action of the actuator. The sensor is disposed within the air chamber of the air spring. The design of the sensor's position in the above technical solution not only protects the sensor from the air chamber of the air spring but also reduces the space occupied by the sensor.

Description

Technical Field

[0001] This application relates to the field of automotive shock absorption technology, and more particularly to a sealing device, shock absorber, suspension assembly, and vehicle. Background Technology

[0002] The suspension assembly is an important part of a vehicle for achieving shock absorption. In the suspension assembly, coil springs and other components can be used to achieve the shock absorption effect.

[0003] In some related technologies, air springs are used as part of the shock absorber to achieve better shock absorption. In other related technologies, actuators are used to adjust the height of the suspension assembly.

[0004] However, there is currently no optimal solution for how to integrate the air spring and actuator into a single unit. Summary of the Invention

[0005] According to a first aspect of this application, a vibration damper is provided, comprising:

[0006] An air spring having an air chamber;

[0007] An actuator for adjusting the height of the air spring;

[0008] Sensors are used to detect the actions of the actuator;

[0009] The sensor (at least a portion thereof) is disposed in the air chamber of the air spring.

[0010] Optionally, in some embodiments of this application, the vibration damper further includes:

[0011] A sealing body is used to block the wiring channel that connects the air chamber of the air spring to the external space;

[0012] A connector is used to achieve an electrical connection between the sensor and an external device;

[0013] The sealing body and the connecting body form a sealed connection so that the sealing body and the connecting body as a whole isolate the air chamber of the air spring from the external space.

[0014] Optionally, in some embodiments of this application, the actuator includes:

[0015] The housing is configured to have the aforementioned wiring channels;

[0016] An actuating linkage is movably connected to the actuating housing.

[0017] Optionally, in some embodiments of this application, the air spring includes:

[0018] A spring-loaded piston is fixedly connected to the actuator housing.

[0019] The air spring base is fixedly connected to the actuator link.

[0020] Optionally, in some embodiments of this application, the sensor is fixedly mounted to the actuator housing.

[0021] Optionally, in some embodiments of this application, the vibration damper further includes:

[0022] An internal cable is used to connect the sensor to the inside of the connector.

[0023] The air spring piston is provided with an inner cable through hole for the inner cable to pass through.

[0024] Optionally, in some embodiments of this application, the vibration damper further includes:

[0025] An internal connector is located at the end of the internal cable;

[0026] The internal plug is electrically connected to the connector.

[0027] Optionally, in some embodiments of this application, the vibration damper further includes:

[0028] An external cable is used to connect the outside of the connector to an external device.

[0029] The housing has an external cable through-hole for the external cable to pass through; the external cable is electrically connected to the connector.

[0030] Optionally, in some embodiments of this application, the vibration damper further includes:

[0031] An external plug is located at the end of the external cable;

[0032] The external plug and the connector are electrically connected.

[0033] Optionally, in some embodiments of this application, the vibration damper further includes:

[0034] An external gasket is used to stop the sealing body;

[0035] An external retaining ring is used to stop the external washer;

[0036] The actuator housing is provided with a gasket groove for accommodating the external gasket; the actuator housing is formed with a snap ring groove for accommodating the external snap ring.

[0037] Optionally, in some embodiments of this application, the execution housing is formed with a sealing groove for accommodating the integral formed by the sealing body and the connecting body.

[0038] Optionally, in some embodiments of this application, the connector is disposed inside the sealing body.

[0039] Optionally, in some embodiments of this application, the entire assembly consisting of the sealing body and the connecting body is formed with a insertion groove.

[0040] Optionally, in some embodiments of this application, the connector is disposed at the bottom of the insertion groove.

[0041] Optionally, in some embodiments of this application, the two insertion grooves are disposed on opposite sides of the sealing body.

[0042] Optionally, in some embodiments of this application, the connector extends through the sealing body in its extending direction so that the connector is exposed in each of the two insertion recesses.

[0043] Optionally, in some embodiments of this application, the vibration damper further includes:

[0044] The channel sealing ring is fitted onto the outside of the sealing body.

[0045] Optionally, in some embodiments of this application, the vibration damper further includes:

[0046] A sealing body, used to block the channel connecting the air chamber of the air spring to the external space;

[0047] Connecting cables are used to enable electrical connection between the sensor and external devices;

[0048] The sealing body and the cable form a sealed connection so that the sealing body and the connecting cable as a whole isolate the air chamber of the air spring from the external space.

[0049] Optionally, in some embodiments of this application, the connecting cable passes through the sealing body such that one end is inside the air cavity and the other end is outside the air cavity.

[0050] Optionally, in some embodiments of this application, the vibration damper further includes:

[0051] The channel sealing ring is fitted onto the outside of the sealing body.

[0052] According to a second aspect of this application, a sealing device is provided, the sealing device comprising:

[0053] A blocking device, used to block the passage it is located in;

[0054] A connector is used to realize the electrical connection of electrical devices in the spaces on both sides of the channel;

[0055] The plug and the connector form a sealed connection so that the plug and the connector together act as a whole to isolate the fluid flow on both sides of the channel.

[0056] Optionally, in some embodiments of this application, the connector is disposed inside the sealing body.

[0057] Optionally, in some embodiments of this application, the entire assembly consisting of the sealing body and the connecting body is formed with a insertion groove.

[0058] Optionally, in some embodiments of this application, the connector is disposed at the bottom of the insertion groove.

[0059] Optionally, in some embodiments of this application, the two insertion grooves are disposed on opposite sides of the sealing body.

[0060] Optionally, in some embodiments of this application, the connector extends through the sealing body in its extending direction so that the connector is exposed in each of the two insertion recesses.

[0061] Optionally, in some embodiments of this application, the sealing device further includes:

[0062] The channel sealing ring is fitted onto the outside of the sealing body.

[0063] According to a third aspect of this application, a suspension assembly is also provided, the suspension assembly including the shock absorber or the sealing device as described above.

[0064] According to a fourth aspect of this application, a vehicle is also provided, the vehicle including the shock absorber, the sealing device, or the suspension assembly as described above.

[0065] The vibration damper in this application embodiment, through the design of the sensor position in the above technical solution, not only protects the sensor by the air bladder of the air spring, but also reduces the space occupation caused by the placement of the sensor.

[0066] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0068] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0069] Figure 1 This is a schematic diagram of the external structure of the first suspension assembly provided in an exemplary embodiment of this application;

[0070] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the suspension assembly provided in the illustrated embodiment;

[0071] Figure 3 yes Figure 1 A partial schematic diagram of the suspension assembly provided in the illustrated embodiment;

[0072] Figure 4 yes Figure 1 A partial schematic diagram of the wiring channel provided in the illustrated embodiment;

[0073] Figure 5 yes Figure 1 A schematic diagram of the overall structure of the sealing body and connecting body provided in the illustrated embodiment;

[0074] Figure 6 This is a schematic diagram of the external structure of the second suspension assembly provided in an exemplary embodiment of this application;

[0075] Figure 7 This is a schematic diagram of the external structure of the third suspension assembly provided in an exemplary embodiment of this application;

[0076] Figure 8 yes Figure 7 A schematic diagram of the internal structure of the suspension assembly provided in the illustrated embodiment;

[0077] Figure 9 yes Figure 7 A partial schematic diagram of the suspension assembly provided in the illustrated embodiment;

[0078] Figure 10 yes Figure 7 A schematic diagram of the overall structure of the sealing body and connecting cable provided in the embodiment shown;

[0079] Figure 11This is a schematic diagram of the overall structure of another sealing body and connecting cable provided in an exemplary embodiment of this application;

[0080] Figure 12 This is a schematic diagram of the vehicle structure provided in an exemplary embodiment of this application.

[0081] Explanation of reference numerals in the attached figures:

[0082] 1. Vehicle; 10. Suspension assembly; 100. Connecting arm; 101. End cap; 102. Mounting bolt; 200. Shock absorber; 210. Air spring; 210a. Center axis; 210b. Air chamber; 211. Air spring piston; 211a. Piston part; 211b. Sleeve part; 211c. Interlayer space; 211d. Inner cable through hole; 212. Air spring base; 213. Air spring body; 214. Air spring cylinder; 215. Piston clamp; 216. Base clamp; 220. Actuator; 221. Actuator housing; 221a. Receiving cavity; 221b. Positioning step; 221c. Cable routing channel ; 221d, Gasket slot; 221e, Snap ring slot; 221f, Sealing body slot; 221g, External cable through hole; 222, Actuating linkage; 230, Sealing device; 231, Sealing body; 231a, Snap ring slot; 231b, Insertion groove; 233, Connector; 234, Connecting cable; 235, External gasket; 236, External snap ring; 237, Channel sealing ring; 240, Positioning ring; 250, Positioning sealing ring; 260, Sensor; 270, Fixing bolt; 281, Internal cable; 282, Internal plug; 283, External cable; 284, External plug; 290, Wire harness clamping block. Detailed Implementation

[0083] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0084] Reference Figures 1 to 5 As shown, the suspension assembly 10 of this application includes a connecting arm 100 and a shock absorber 200.

[0085] The connecting arm 100 is used to connect directly or indirectly to the wheels of the vehicle 1 (not shown in the figure), thereby transmitting the forces acting on the vehicle 1 to the shock absorber 200. The shock absorber 200 is disposed between the vehicle body and the connecting arm 100, thereby buffering the vibrations transmitted to the vehicle body.

[0086] Reference Figures 1 to 5As shown, as a specific solution, the shock absorber 200 mainly includes: an air spring 210, an actuator 220, and a sensor 260.

[0087] Specifically, the air spring 210 has an air chamber 210b; the actuator 220 is used to adjust the length of the air spring 210; the sensor 260 is used to detect the action of the actuator 220; wherein, at least a portion of the sensor 260 is disposed in the air chamber 210b of the air spring 210.

[0088] The air chamber 210b of the air spring 210 is mainly used to contain the pressure medium for shock absorption, which is generally a gaseous medium. As an option, the air spring 210 can be equipped with a corresponding valve, such as a solenoid valve, to control the amount of pressure medium in the air chamber 210b of the air spring 210. More specifically, the air spring 210 can be a sleeve-type air spring.

[0089] The actuator 220 can be a cylinder mechanism or a linear motor. Generally, a sensor 260 is installed in the damper 200 to detect the movement of the actuator 220. In a damper 200 that uses a coil spring as the damping element, the coil spring and the sensor 260 are often staggered in the extension and contraction direction of the coil spring to avoid interference. This results in an excessively large overall size and difficult wiring. In a damper 200 that uses an air spring 210 as the damping element, the sensor 260 is often placed outside the air spring 210. However, this makes the sensor 260 very susceptible to external influences, and similar to the damper 200 using a coil spring, it also increases the overall size of the damper 200.

[0090] The technical solution provided in this application, by placing the sensor 260 in the air chamber 210b of the air spring 210, allows the air spring bladder 213 of the air spring 210 to cover and protect the sensor 260. At the same time, due to the spatial overlap between the sensor 260 and the air spring 210, the size of the shock absorber 200 is reduced.

[0091] Reference Figures 1 to 5 As shown, the vibration damper 200 of this application further includes a sealing device 230. Specifically, the sealing device 230 includes a sealing body 231 and a connecting body 233. The sealing body 231 is used to block the wiring channel 221c that connects the air chamber 210b of the air spring 210 to the external space; the connecting body 233 is used to realize the electrical connection between the sensor 260 and an external device (not shown in the figure); wherein, the sealing body 231 and the connecting body 233 form a sealed connection so that the sealing body 231 and the connecting body 233 as a whole isolate the communication between the air chamber 210b of the air spring 210 and the external space.

[0092] It should be noted that the sealed connection referred to in this application means that there is no channel for the passage of fluids such as gas or liquid between the two components constituting the sealed connection; for example, the sealing connection between the sealing body 231 and the connecting body 233 can be that the sealing body 231 and the connecting body 233 are in direct close contact so that the fluid cannot pass through the contact interface between them, or the sealing body 231 and the connecting body 233 can be indirectly connected into a whole by means of a colloid or the like, so that the various parts are in close contact so that the fluid cannot pass through the contact interface between them.

[0093] By adopting the above-described solution, both sealing and electrical connection can be achieved. This solves the problem that wiring would affect the sealing performance of the air chamber 210b when the sensor 260 is placed in the air chamber 210b of the air spring 210. Furthermore, the fact that the sealing body 231 and the connecting body 233 are integrated as a whole reduces the complexity of wiring, resulting in a high degree of integration for the vibration damper 200 of this application.

[0094] Reference Figures 1 to 5 As shown, the air spring 210 of this application specifically includes: an air spring piston 211, an air spring base 212, an air spring bladder 213, an air spring cylinder 214, a piston clamp 215, and a base clamp 216.

[0095] The air spring bladder 213 is connected to both the air spring piston 211 and the air spring base 212, thus forming a variable space, namely the air chamber 210b of the air spring 210, inside the air spring bladder 213 and between the air spring piston 211 and the air spring base 212. Gas is introduced into the air chamber 210b as a pressure medium as needed. Thus, when the air spring piston 211 and the air spring base 212 are under pressure, the gas in the air chamber 210b is compressed; and when the pressure on the air spring piston 211 and the air spring base 212 is released, the gas in the air chamber 210b expands.

[0096] The top of the air spring base 212 can be provided with multiple fixing bolts 270, which makes it easy to install to other parts of the vehicle 1.

[0097] As a specific solution, the air spring bladder 213 is made of flexible material. In order to limit the expansion range and direction of the air spring bladder 213, the air spring cylinder 214 is fitted on the outside of the air spring bladder 213.

[0098] As a specific solution, in order to better connect the air spring bladder 213 with the air spring piston 211 and the air spring base 212, the air spring bladder 213 can be clamped to the air spring piston 211 from the outside by a piston clamp 215; similarly, the air spring bladder 213 can be clamped to the air spring base 212 from the outside by a base clamp 216.

[0099] Reference Figures 1 to 5 As shown, the actuator 220 of this application specifically includes: an actuator housing 221 and an actuator link 222.

[0100] The actuator housing 221 has a receiving cavity 221a inside, which can accommodate specific components of the actuator 220 (not shown in the figure). For example, when the actuator 220 is a linear motor, the receiving cavity 221a accommodates the stator part of the linear motor (not shown in the figure).

[0101] Specifically, the execution housing 221 can be a complete housing, meaning that all parts surrounding the receiving cavity 221a are constituted by the execution housing 221. Alternatively, the receiving cavity 221a can also be constituted by the execution housing 221 and other parts. (Refer to...) Figure 1 and Figure 2 As shown, in a specific embodiment, the bottom of the execution housing 221 is open, and the top of the connecting arm 100 forms an end cap 101 with a flange, which is then installed to the execution housing 221 by mounting bolts 102 to form a complete receiving cavity 221a, and at the same time, the connecting arm 100 is fixedly connected.

[0102] Specifically, the actuator 222 can move relative to the actuator housing 221. Therefore, the actuator 222 can be used to adjust the length of the air spring 210, or to adjust the length of the entire damper 200 in the damping direction.

[0103] It should be noted that the length of the air spring 210 refers to its dimension in the direction of spring compression and extension. The length direction of the air spring 210 can be considered parallel to or coincident with the direction of movement of the actuator 222.

[0104] The actuator link 222 can be fixedly connected to the air spring base 212. In particular, the air spring base 212 is installed to the end of the actuator link 222, so that when the actuator link 222 slides relative to the actuator housing 221, the actuator link 222 can adjust the position of the air spring base 212, thereby adjusting the suspension height of the vehicle 1.

[0105] More specifically, the air spring piston 211 includes a piston portion 211a and a sleeve portion 211b. The piston portion 211a is fixed to the actuator housing 221 near the air spring base 212; the sleeve portion 211b forms a sleeve structure and is fitted onto the outside of the actuator housing 221, thereby forming a sandwich space 211c between the sleeve portion 211b and the outer wall of the actuator housing 221.

[0106] The outer wall of the housing 221 has a positioning step 221b; the end of the sleeve portion 211b abuts against the end face of the positioning step 221b.

[0107] To better seal the interlayer space 211c, the vibration damper 200 of this application further includes a positioning ring 240 and a positioning sealing ring 250. Both the positioning ring 240 and the positioning sealing ring 250 are disposed between the sleeve portion 211b and the actuator housing 221. The positioning ring 240 is used to position the sleeve portion 211b relative to the positioning step 221b. The positioning sealing ring 250 is used to seal the interlayer space 211c relative to the outside, thereby preventing gas from escaping along the gap between the sleeve portion 211b and the positioning step 221b.

[0108] In this way, the cable connecting the sensor 260 can be laid along the interlayer space 211c without air leakage in the gap between the sleeve portion 211b and the positioning step 221b. Since the interlayer space 211c can be sealed, the piston portion 211a can have an inner cable through hole 211d for the cable connecting the sensor 260 to pass through, without the need for an additional sealing structure. This allows users to easily lay the cable to connect to the sensor 260 located between the air spring piston 211 and the air spring base 212.

[0109] As a specific solution, a wire harness clamping block 290 is provided on the outside of the housing 221 to position the wire harness in the interlayer space 211c.

[0110] Furthermore, the pressure medium inside the air spring bladder 213 can enter the interlayer space 211c through the inner cable through hole 211d, which can also form a heat exchange with the actuator housing 221 to achieve heat dissipation for the actuator 220.

[0111] More specifically, at least a portion of the actuator housing 221 passes through the air spring piston 211 from inside the air spring bladder 213, and the sensor 260 can be fixedly mounted on the portion of the actuator housing 221 located inside the air spring bladder 213.

[0112] As a specific solution, sensor 260 can be a Hall sensor or an encoder sensor, etc.

[0113] In order to ensure the air spring 210 is sealed, the actuator housing 221 may form the aforementioned wiring channel 221c at its positioning step 221b, and the sealing device 230 of this application shall be provided in the wiring channel 221c.

[0114] Reference Figures 1 to 5 As shown, as a specific solution, the shock absorber 200 also includes: an internal cable 281, an internal plug 282, an external cable 283, and an external plug 284.

[0115] One end of the internal cable 281 is connected to an internal plug 282, which is plugged into the sensor 260. The other end of the internal cable 281 is electrically connected to the connector 233. One end of the external cable 283 is connected to an external plug 284, which is plugged into an external device, such as the controller of the suspension assembly 10. The other end of the external cable 283 is electrically connected to the connector 233.

[0116] In other words, the internal cable 281 is used to connect the sensor 260 to the inner side of the connector 233; the air spring piston 211 is provided with an internal cable through hole 211d for the internal cable 281 to pass through. The internal plug 282 is provided at the end of the internal cable 281; and the internal plug 282 is electrically connected to the connector 233 through the internal cable 281. The external cable 283 is used to connect the outer side of the connector 233 to external devices; the actuator housing 221 is formed with an external cable through hole 221g for the external cable 283 to pass through; the external cable 283 is electrically connected to the connector 233; the external plug 284 is provided at the end of the external cable 283; the external plug 284 is electrically connected to the connector 233 through the external cable 283.

[0117] In this way, the sealing body 231 and the connecting body 233 can be pre-installed in the wiring channel 221c of the execution housing 221, and the internal cable 281 and the external cable 283 can be electrically connected to the connecting body 233 respectively. Then, the internal plug 282 is plugged into the sensor 260, and the external plug 284 is connected to external devices (such as controllers or buses). This avoids the instability and cumbersome procedures caused by temporary sealing during installation. Furthermore, by standardizing the sealing body 231 and the connecting body 233, different specifications of internal cables 281 and external cables 283 can also be plugged in.

[0118] The two sides of the connector 233 can be connected to conductive materials such as cables, so that the connector 233 can conduct electricity while the sealing body 231 can achieve sealing.

[0119] The connector 233 is located inside the sealing body 231, which not only achieves insulation but also provides a certain buffer for the conductive connection, ensuring the stability of the electrical connection.

[0120] Reference Figures 1 to 5 As shown, as a specific solution, the sealing device 230 also includes: an external gasket 235, an external snap ring 236, and multiple channel sealing rings 237.

[0121] The cable routing channel 221c is divided into an external cable through-hole 221g, a gasket slot 221d, a spring clip slot 221e, and a sealing groove 221f. An external gasket 235 is used to stop the sealing body 231; an external spring clip 236 is used to stop the external gasket 235; the external gasket 235 is located in the gasket slot 221d; and the external spring clip 236 is located in the spring clip slot 221e. The sealing body 231 is located in the sealing groove 221f. Specifically, the sealing groove 221f is a stepped groove, meaning that the sealing body 231 is limited inward by the stepped structure of the sealing groove 221f, and outward by the external gasket 235 and the external slot. Because the position of the sealing body 231 needs to be maintained, an external spring clip 236 is used to ensure a certain preload. The channel sealing ring 237 is used to achieve a seal between the channel wall of the wiring channel 221c and the sealing body 231. These channel sealing rings 237 are fitted onto the outside of the sealing body 231. As a specific embodiment, the outer periphery of the sealing body 231 is provided with one or more retaining grooves 231a, into which the channel sealing ring 237 can be embedded, thereby effectively positioning the channel sealing ring 237.

[0122] Reference Figures 1 to 5 As shown, in a specific embodiment, the connector 233 is disposed inside the sealing body 231; the sealing body 231 and the connector 233 together form an insertion groove 231b; the connector 233 is disposed at the bottom of the insertion groove 231b.

[0123] As a specific solution, the plugging body 231 itself may form a plugging groove 231b, and the connecting body 233 may serve as the bottom surface of the plugging groove 231b; or, the connecting body 233 itself may form a plugging groove 231b.

[0124] As a specific solution, the insertion groove 231b can be a stepped groove, that is, its cross-sectional shape is part of a rectangle. As an optional solution, the insertion groove 231b can also be a curved groove, that is, its cross-sectional shape is an arc or other curve.

[0125] The insertion groove 231b ensures both the connection area and effective centering and positioning during connection.

[0126] This ensures the connection effect and stability between connector 233 and internal cable 281 and external cable 283.

[0127] As a more specific solution, two insertion grooves 231b are provided on opposite sides of the sealing body 231; the connecting body 233 extends through the sealing body 231 in its extending direction so that the connecting body 233 is exposed in the two insertion grooves 231b respectively, which facilitates the user to make the connection.

[0128] The sealing body 231 can be made of insulating material, and the connecting body 233 can be made of conductive material. In this way, the sealing body 231 can not only achieve sealing, but also have the effect of insulation.

[0129] Reference Figures 1 to 2 As shown, the external cable channel 221g of the damper 200 extends radially R, and the routing direction of its external cable is also radially extended. Here, radial refers to the direction with reference to the central axis 210a of the air spring 210.

[0130] Reference Figure 6 As shown, another embodiment of the suspension assembly 10 provided in this application is provided, which is related to... Figures 1 to 3 The difference in the suspension assembly 10 shown is that the external cable channel 221g of the shock absorber 200 extends along the tangential direction Q, and the routing direction of its external cable also extends along the tangential direction. The tangential direction referred to here is the tangential direction of the virtual cylindrical surface when the central axis 210a of the air spring 210 is taken as the axis of rotation of the virtual cylindrical surface.

[0131] Reference Figures 7 to 10 As shown, another embodiment of the suspension assembly 10 provided in this application (connecting arm 100 not shown in the figure) is provided.

[0132] The suspension assembly 10 and Figures 1 to 3 The difference in the suspension assembly 10 shown lies in the specific design of the sealing device 230.

[0133] Specifically, Figures 7 to 10 The sealing device 230 in the suspension assembly 10 shown includes a sealing body 231 and a connecting cable 234. The sealing body 231 seals the passageway connecting the air chamber 210b of the air spring 210 to the external space; the connecting cable 234 enables electrical connection between the sensor 260 and external devices. The sealing body 231 and the cable form a sealed connection so that the sealing body 231 and the connecting cable 234, as a whole, isolate the air chamber 210b of the air spring 210 from the external space.

[0134] The connecting cable 234 passes through the sealing body 231, with one end located inside the air cavity 210b and the other end located outside the air cavity 210b. To improve the sealing effect around the sealing body 231, the sealing device 230 also includes multiple channel sealing rings 237. These channel sealing rings 237 are fitted onto the outside of the sealing body 231.

[0135] This approach simplifies the construction of the sealing device 230, although it sacrifices some versatility, it reduces the number of wiring steps.

[0136] Reference Figures 7 to 10As shown, Figures 7 to 10 The external cable channel 221g formed by the actuator housing 221 in the suspension assembly 10 shown extends along the axial direction A, and the connecting cable 234 also extends axially within the sealing body 231. The radial direction referred to here is with respect to the central axis 210a of the air spring 210 as the axial reference.

[0137] Reference Figures 7 to 10 As shown, in some embodiments of this application, the sealing body is constructed as a body of revolution. For example, the sealing body is constructed as a frustum-shaped cone. This facilitates the installation of the sealing body 231.

[0138] Optionally, in some embodiments of this application, the number of channel sealing rings and retaining ring grooves is greater than or equal to 2. This further ensures the sealing effect.

[0139] Figures 7 to 10 The sealing groove (not shown) of the positioning step 221b in the suspension assembly 10 is open upwards. The positioning step restricts the sealing body 231 from below, and then it is fixed above by an external gasket 235 and an external retaining ring 236. When wiring, the connecting cable 234 can be led out first, and then the sleeve part 211b can be fixed to the positioning step 221b.

[0140] As another aspect of this application, this application may also provide a sealing device 230, which may also be applied to other working scenarios similar to the above-described shock absorber 200.

[0141] Specifically, the sealing device 230 includes a sealing body 231 and a connecting body 233. The sealing body 231 is used to seal the channel in which it is located; the connecting body 233 is used to realize the electrical connection of electrical devices in the space on both sides of the channel.

[0142] The sealing body 231 and the connecting body 233 form a sealed connection so that the sealing body 231 and the connecting body 233, as a whole, isolate the fluid flow on both sides of the channel. The sealing device 230 can also adopt the specific scheme mentioned above.

[0143] In other words, in the embodiments provided above in this application, the sealing body 231 surrounds the connecting device so that the connecting device is disposed inside the sealing body 231; the sealing body 231 and the connecting device form a sealed connection so that the sealing body 231 and the connecting device are a whole that can isolate the passage of fluid.

[0144] exist Figures 1 to 5 In the embodiment shown, the connecting device is configured as a connector 233; the connector 233 is disposed inside the sealing body 231.

[0145] exist Figures 7 to 10In the embodiment shown, the connecting device is configured as a connecting cable 234; the connecting cable 234 passes through the sealing body 231 such that the two ends of the connecting cable 234 are located on both sides of the sealing body 231.

[0146] Reference Figure 11 As shown, the sealing body 231 can be provided with multiple retaining grooves 231a to position multiple channel sealing rings 237.

[0147] Reference Figure 12 As shown, this application provides a vehicle 1, which may include the above-described shock absorber 200, sealing device 230 or suspension assembly 10.

[0148] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions on it.

[0149] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0150] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0151] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0152] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A vibration damper (200), characterized in that: The vibration damper (200) includes: An air spring (210) having at least one air chamber (210b); Actuator (220) for adjusting the height of the air spring (210); Sensor (260) is used to detect the action of the actuator (220); At least a portion of the sensor (260) is disposed in the air chamber (210b) of the air spring (210).

2. The vibration damper (200) according to claim 1, characterized in that: The vibration damper (200) also includes: A sealing body (231) is used to block the wiring channel (221c) that connects the air chamber (210b) of the air spring (210) to the external space; Connector (233) is used to realize the electrical connection between the sensor (260) and external devices; The sealing body (231) and the connecting body (233) form a sealed connection so that the sealing body (231) and the connecting body (233) as a whole isolate the air chamber (210b) of the air spring (210) from the external space.

3. The vibration damper (200) according to claim 2, Its features are: The actuator (220) includes: The housing (221) is formed with the wiring channel (221c); The actuator link (222) is movably connected to the actuator housing (221).

4. The vibration damper (200) according to claim 3, Its features are: The air spring (210) includes: A spring-loaded piston (211) is fixedly connected to the actuator housing (221); The air spring base (212) is fixedly connected to the actuator link (222).

5. The vibration damper (200) according to claim 4, characterized in that: in, The sensor (260) is fixedly mounted to the actuator housing (221).

6. The vibration damper (200) according to claim 5, characterized in that: The vibration damper (200) also includes: An internal cable (281) is used to connect the sensor (260) to the inside of the connector (233); The air spring piston (211) is provided with an inner cable through hole (211d) for the inner cable (281) to pass through.

7. The vibration damper (200) according to claim 6, characterized in that: The vibration damper (200) also includes: An internal connector (282) is provided at the end of the internal cable (281); The internal plug (282) and the connector (233) are electrically connected.

8. The vibration damper (200) according to claim 5, characterized in that: The vibration damper (200) also includes: An external cable (283) is used to connect the outside of the connector (233) to an external device; The execution housing (221) has an external cable through hole (221g) for the external cable (283) to pass through; the external cable (283) and the connector (233) are electrically connected.

9. The vibration damper (200) according to claim 8, characterized in that: The vibration damper (200) also includes: An external plug (284) is disposed at the end of the external cable (283); The external plug (284) and the connector (233) are electrically connected.

10. The vibration damper (200) according to claim 9, characterized in that: The vibration damper (200) also includes: An external gasket (235) is used to stop the sealing body (231); An external retaining ring (236) is used to stop the external washer (235); The actuator housing (221) is provided with a gasket groove (221d) for accommodating the external gasket (235); the actuator housing (221) is formed with a snap ring groove (221e) for accommodating the external snap ring (236).

11. The vibration damper (200) according to claim 10, characterized in that: in, The execution housing (221) is formed with a sealing groove (221f) for accommodating the entire assembly of the sealing body (231) and the connecting body (233).

12. The vibration damper (200) according to any one of claims 2 to 11, characterized in that: in, The connector (233) is disposed inside the sealing body (231).

13. The vibration damper (200) according to claim 12, characterized in that: in, The sealing body (231) and the connecting body (233) together form an insertion groove (231b); And / or, the sealing body (231) is formed with an insertion groove (231b); And / or, the connector (231) is formed with a insertion groove (231b).

14. The vibration damper (200) according to claim 13, characterized in that: in, The connector (233) is located at the bottom of the insertion groove (231b).

15. The vibration damper (200) according to claim 14, characterized in that: in, The two insertion grooves (231b) are disposed on opposite sides of the sealing body (231).

16. The vibration damper (200) according to claim 15, characterized in that: in, The connector (233) extends through the plug (231) in its extending direction so that the connector (233) is exposed in each of the two insertion grooves.

17. The vibration damper (200) according to claim 16, characterized in that: The vibration damper (200) also includes: The channel sealing ring (237) is fitted over the outside of the sealing body (231).

18. The vibration damper (200) according to claim 1, characterized in that: The vibration damper (200) also includes: A sealing body (231) is used to block the passage connecting the air chamber (210b) of the air spring (210) to the external space; A connecting cable (234) is used to enable electrical connection between the sensor (260) and an external device; The sealing body (231) and the cable form a sealed connection so that the sealing body (231) and the connecting cable (234) together isolate the air chamber (210b) of the air spring (210) from the external space.

19. The vibration damper (200) according to claim 18, characterized in that: in, The connecting cable (234) passes through the sealing body (231) such that one end is inside the air cavity (210b) and the other end is outside the air cavity (210b).

20. The vibration damper (200) according to claim 2 or 18, characterized in that: The vibration damper (200) also includes: The channel sealing ring (237) is fitted over the outside of the sealing body (231).

21. A sealing device (230), characterized in that: The sealing device (230) includes: The blocking body (231) is used to block the passage in which it is located; Connector (233) is used to realize the electrical connection of electrical devices in the spaces on both sides of the channel; The sealing body (231) and the connecting body (233) form a sealed connection so that the sealing body (231) and the connecting body (233) together isolate the fluid flow on both sides of the channel as a whole.

22. The sealing device (230) according to claim 21, characterized in that: in, The connector (233) is disposed inside the sealing body (231).

23. The sealing device (230) according to claim 22, characterized in that: in, The sealing body (231) and the connecting body (233) together form an insertion groove.

24. The sealing device (230) according to claim 23, characterized in that: in, The connector (233) is located at the bottom of the insertion groove.

25. The sealing device (230) according to claim 24, characterized in that: in, The two insertion grooves are located on opposite sides of the sealing body (231).

26. The sealing device (230) according to claim 25, characterized in that: in, The connector (233) extends through the plug (231) in its extending direction so that the connector (233) is exposed in each of the two insertion grooves.

27. The sealing device (230) according to claim 26, characterized in that: The sealing device (230) further includes: The channel sealing ring (237) is fitted over the outside of the sealing body (231).

28. A suspension assembly (10), characterized in that: The suspension assembly (10) includes: a shock absorber (200) as described in any one of claims 1 to 20 or a sealing device (230) as described in any one of claims 21 to 27.

29. A vehicle (1), characterized in that: The vehicle (1) includes: a shock absorber (200) according to any one of claims 1 to 20, a sealing device (230) according to any one of claims 21 to 27, or a suspension assembly (10) according to claim 28.

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