CN221170552U

CN221170552U - Valve structure of shock absorber, shock absorber and vehicle

Info

Publication number: CN221170552U
Application number: CN202323199374.4U
Authority: CN
Inventors: 卢音波
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-06-18
Anticipated expiration: 2033-11-24

Abstract

The utility model discloses a valve structure of a shock absorber, the shock absorber and a vehicle, wherein the valve structure is suitable for limiting a first medium circulation space together with a valve body assembly of the shock absorber, the valve structure comprises an overflow valve body, the overflow valve body is suitable for forming a first medium channel with the valve body assembly, the first medium circulation space is suitable for being communicated with a medium channel of the valve body assembly, and a medium in the first medium circulation space is suitable for driving the overflow valve body to move away from the valve body assembly so as to adjust the opening of the first medium channel. Therefore, the valve structure and the valve body assembly of the shock absorber jointly define a first medium circulation space, a first medium channel is formed between the overflow valve body and the valve body assembly, and when a certain amount of medium flowing into the first medium circulation space through the medium channel of the valve body assembly is accumulated, the medium in the first medium circulation space can drive the overflow valve body to move away from the valve body assembly so as to adjust the opening of the first medium channel, so that the damping of the shock absorber is changed, and the using effect of the shock absorber is improved.

Description

Valve structure of shock absorber, shock absorber and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to a valve structure of a shock absorber, the shock absorber and a vehicle.

Background

In the related art, the shock absorber of the vehicle can reduce jolt of the vehicle in the running process, so that riding experience of passengers is improved, and riding comfort of the vehicle is improved. However, the valve structure of the existing shock absorber is unreasonable in design, so that the damping of the shock absorber is unchanged at any time, and the using effect of the shock absorber is poor.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a valve structure of a shock absorber, which has a reasonable design and can change the damping of the shock absorber to improve the use effect of the shock absorber.

The utility model further provides a shock absorber.

The utility model further proposes a vehicle.

According to the shock absorber of the vehicle, the valve structure is suitable for limiting a first medium circulation space together with the valve body assembly of the shock absorber, the valve structure comprises an overflow valve body, the overflow valve body is suitable for forming a first medium channel with the valve body assembly, the first medium circulation space is suitable for being communicated with the medium channel of the valve body assembly, and the medium in the first medium circulation space is suitable for driving the overflow valve body to move away from the valve body assembly so as to adjust the opening degree of the first medium channel.

According to the shock absorber of the vehicle, the valve structure and the valve body assembly of the shock absorber jointly define the first medium circulation space, the overflow valve body and the valve body assembly form the first medium channel, and when a certain amount of medium flowing into the first medium circulation space through the medium channel of the valve body assembly is accumulated, the medium in the first medium circulation space can drive the overflow valve body to move away from the valve body assembly so as to adjust the opening of the first medium channel, so that the damping of the shock absorber is changed, and the using effect of the shock absorber is improved.

In some examples of the utility model, the valve structure further comprises: the overflow valve body is provided with an overflow valve guide column extending towards the valve body assembly, the overflow valve guide column is sleeved with the first elastic piece and is suitable for being abutted between the overflow valve body and the valve body assembly, and the first elastic piece is suitable for driving the overflow valve body to move away from the valve body assembly so as to open the first medium channel or increase the opening of the first medium channel.

In some examples of the utility model, the relief valve body has a relief valve media passage, and the first media flow space is adapted to communicate the media passage of the valve body assembly with the relief valve media passage.

In some examples of the utility model, the relief valve medium passage includes a first relief valve passage in communication with the first medium flow space and a second relief valve passage in communication with the medium passage, and the first relief valve passage selectively communicates with the second relief valve passage.

In some examples of the utility model, the relief valve medium passage further comprises: the first medium communication port is communicated with the first overflow valve passage and the second overflow valve passage, and the end part, close to the overflow valve body, of the pilot valve of the shock absorber is suitable for blocking the first medium communication port.

In some examples of the utility model, the first relief valve passage includes: the first medium circulation space is communicated with the first medium circulation space, the second medium circulation space is communicated with the second medium circulation space, the third medium circulation space is communicated with the second medium circulation space, and at least two of the first sub-overflow valve passage, the second sub-overflow valve passage and the third sub-overflow valve passage are provided with angles.

In some examples of the utility model, the second sub-relief valve passage extends through the relief valve body in a radial direction of the relief valve body.

In some examples of the utility model, the valve structure further comprises: the matching valve sleeve is arranged on the outer side of the overflow valve body and is suitable for being fixedly connected with the valve body assembly, and the matching valve, the valve body assembly and the overflow valve body jointly define a first medium circulation space.

In some examples of the utility model, the relief valve body has a relief valve flange extending toward the mating valve, the relief valve flange and the mating valve together defining a second media flow space that communicates with the first relief valve passage and the second relief valve passage.

In some examples of the utility model, the fitting valve has a fitting valve first flange extending towards the relief valve body, the fitting valve first flange and the relief valve flange being jointly configured as at least part of a side wall of the second medium flow space, and the relief valve flange being adapted for guided fitting with the fitting valve first flange.

In some examples of the utility model, the first sub-relief valve passageway is provided in an outer sidewall of the relief valve body.

In some examples of the utility model, the second relief valve passage includes: a fourth sub-relief valve passage and a fifth sub-relief valve passage in communication with each other, the fourth sub-relief valve passage being adapted to communicate with the first relief valve passage, the fifth sub-relief valve passage being in communication with the medium passage, the fifth sub-relief valve passage having a flow area greater than a flow area of the fourth sub-relief valve passage.

In some examples of the utility model, the medium at the fifth sub-relief valve passage is adapted to drive the relief valve body away from the valve body assembly to increase the opening of the first medium passage or to open the first medium passage.

In some examples of the utility model, the middle position of the mating valve has a first boss protruding toward the inside, and an inner side wall of the first boss mates with an outer side wall of the overflow valve body.

In some examples of the utility model, the mating valve is adapted to be secured to the valve body assembly proximate an end of the valve body assembly, the mating valve defining a mating valve receiving space, a portion of the valve body assembly and the relief valve body being located within the mating valve receiving space.

In some examples of the present utility model, the top wall of the mating valve has a first relief hole, the pilot valve of the shock absorber is adapted to be inserted through the first relief hole, and an end of the pilot valve, which is close to the overflow valve body, is adapted to be stopped by the overflow valve body.

In some examples of the utility model, the top wall of the mating valve is provided with a second pressure balancing passage that extends through the top wall of the mating valve.

In some examples of the utility model, a portion of the second pressure balancing passage is configured as a portion of the first relief hole.

In some examples of the utility model, the mating valve has a mating valve second flange extending away from the relief valve body, and an outer sidewall of the magnetic core of the shock absorber is adapted to guide-mate with an inner sidewall of the mating valve second flange.

In some examples of the utility model, the mating valve second flange is adapted to be disposed within a first mating groove of a magnetic shield of the shock absorber.

The shock absorber according to the present utility model comprises the valve structure of the shock absorber described above.

The vehicle according to the utility model comprises the shock absorber described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly not in operation);

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, Q1 stage);

Fig. 4 is an enlarged view at B in fig. 3;

FIG. 5 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, Q2 stage);

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, Q3 stage);

FIG. 8 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, stage Q3);

FIG. 9 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, stage Q4);

FIG. 10 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, stage Q4);

FIG. 11 is a cross-sectional view of a shock absorber according to an embodiment of the present utility model (electromagnetic assembly in operation, Q5 stage);

FIG. 12 is a schematic view of a valve body according to an embodiment of the present utility model;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 12;

FIG. 14 is a cross-sectional view taken at E-E of FIG. 12;

FIG. 15 is a schematic view of a valve cover according to an embodiment of the present utility model;

FIG. 16 is a cross-sectional view of a valve cover according to an embodiment of the present utility model;

FIG. 17 is a schematic view of an assembly of a valve body and a bonnet according to an embodiment of the utility model;

FIG. 18 is a schematic view of another angular assembly of a valve body and a bonnet according to an embodiment of the utility model;

FIG. 19 is a cross-sectional view taken at F-F in FIG. 18;

FIG. 20 is a cross-sectional view at G-G of FIG. 18;

FIG. 21 is a schematic view of a one-way valve according to an embodiment of the present utility model;

FIG. 22 is a schematic view of an overflow valve body according to an embodiment of the utility model;

FIG. 23 is a schematic view of another angle of an overflow valve body according to an embodiment of the utility model;

FIG. 24 is a cross-sectional view of an overflow valve body according to an embodiment of the utility model;

FIG. 25 is another angular cross-sectional view of an overflow valve body according to an embodiment of the utility model;

FIG. 26 is a schematic view of a mating valve according to an embodiment of the present utility model;

FIG. 27 is a schematic view of another angle of a mating valve according to an embodiment of the present utility model;

FIG. 28 is a cross-sectional view of a mating valve according to an embodiment of the present utility model;

FIG. 29 is a schematic illustration of a pilot valve according to an embodiment of the present utility model;

FIG. 30 is a cross-sectional view of a pilot valve according to an embodiment of the present utility model;

FIG. 31 is a schematic view of a valve cartridge according to an embodiment of the present utility model;

FIG. 32 is a schematic view of another angle of a valve cartridge according to an embodiment of the present utility model;

FIG. 33 is a cross-sectional view of a valve cartridge according to an embodiment of the present utility model;

FIG. 34 is another angular cross-sectional view of a valve cartridge according to an embodiment of the present utility model;

FIG. 35 is a schematic view of a magnetic separator according to an embodiment of the present utility model;

FIG. 36 is a cross-sectional view of a magnetic separator according to an embodiment of the present utility model;

FIG. 37 is a schematic view of a coil support according to an embodiment of the utility model;

FIG. 38 is a cross-sectional view of a coil support according to an embodiment of the utility model;

FIG. 39 is another angular cross-sectional view of a coil support according to an embodiment of the utility model;

FIG. 40 is a schematic view of a bracket cover according to an embodiment of the present utility model;

FIG. 41 is a schematic view of another angle of a bracket cover according to an embodiment of the utility model;

FIG. 42 is a schematic view of a magnetic core shield according to an embodiment of the present utility model;

FIG. 43 is a cross-sectional view of a core shield according to an embodiment of the present utility model;

FIG. 44 is a schematic view of a metal cap according to an embodiment of the present utility model;

FIG. 45 is a cross-sectional view of a metal cap according to an embodiment of the present utility model;

FIG. 46 is a schematic diagram of an electromagnetic assembly according to an embodiment of the utility model;

FIG. 47 is a cross-sectional view of an electromagnetic assembly according to an embodiment of the utility model;

FIG. 48 is another angular cross-sectional view of an electromagnetic assembly according to an embodiment of the present utility model;

fig. 49 is a cross-sectional view of a piston according to an embodiment of the present utility model.

Reference numerals:

Shock absorber 100; a valve body assembly 200; a first media channel 201;

A housing 10; the accommodating space 11; a compression space 111; a restoration space 112; a first housing 12; a second housing 13; a liquid storage space 14; a valve base assembly 15; a piston 20; a mounting space 21; an internal thread 22; a fitting hole 23;

A valve body assembly 30; a medium passage 31; a first medium passage 311; a first sub-medium path 3111; a second sub-medium path 3112; third sub-medium via 3113; a second medium passage 312; fourth sub-medium path 3121; fifth sub-medium path 3122; sixth sub-medium path 3123; the first communication path 3124;

a third medium passage 313; a one-way valve 32; a flat screw 321; a spring 322; steel balls 323;

a valve body 33; a valve cover 34; a first boss 341; hollow structure 3411; the first communication hole 3412; a second communication hole 3413;

A first medium circulation space 35; a seal 36;

An overflow valve body 40; a first elastic member 41; relief valve medium passage 42; a first relief valve passage 421; a first sub relief valve passage 4211; a second sub relief valve passage 4212; a third sub relief valve passage 4213;

A second relief valve passage 422; fourth sub relief valve passage 4221; a fifth sub relief valve passage 4222; a first medium communication port 423;

An overflow valve flange 43; a second medium flow space 44; an overflow valve guide post 45;

An electromagnetic assembly 50; a core cover 52; a boss structure 521; a second boss 522; a second boss 523; an electromagnetic accommodation space 524;

A coil bracket 53; a bracket space 531; a wire slot 532; mounting posts 533; a holder body 534; an extension 535;

A bracket cover 54; a fitting portion 541; a first notch 5411; a metal cap 55; a second notch 551;

A mating valve 60; a mating valve first flange 61; a first boss 62; a fitting valve accommodation space 63; a first relief hole 64; a second pressure balance passage 65; matching with the valve second flange 66; an external thread 67; a pilot valve 70; a pilot fitting groove 71;

A magnetic core 80; a first groove 81; a second elastic member 82; a second groove 83; a third elastic member 84; a first pressure balance passage 85; a core guide post 86; a first concave portion 87;

a magnetism insulator 90; a seal ring 91; sealing groove 92; a first fitting groove 93; a second mating groove 94; a second relief hole 95.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The valve structure of shock absorber 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 11 and fig. 22 to 28.

As shown in fig. 1 to 11, the shock absorber 100 may include: the valve comprises a shell 10, a valve body assembly 30 and a valve structure, wherein the shell 10 defines a containing space 11, a medium is arranged in the containing space 11, the medium is flowable medium, and the medium can flow in the containing space 11. As some alternative embodiments of the application, the medium may be oil. As some alternative embodiments of the present application, the medium may be a gas-liquid mixed medium, the gas may be an inert gas, or the gas may be nitrogen.

The valve body assembly 30 divides the accommodating space 11 into a compression space 111 and a restoration space 112, wherein an outer sidewall of the valve body assembly 30 may be in sealing fit with an inner sidewall of the housing 10 (i.e., a sidewall forming the accommodating space 11) to divide the accommodating space 11 into the compression space 111 and the restoration space 112, specifically, a space located at one side of the valve body assembly 30 is the compression space 111, a space located at an opposite side of the valve body assembly 30 is the restoration space 112, and the valve structure is located at the restoration space 112. The valve structure and the valve body assembly 30 can together define a first medium flow space 35, the valve structure comprises an overflow valve body 40, a first medium channel 201 is formed between the overflow valve body 40 and the valve body assembly 30, and medium can flow through the first medium channel 201.

Valve body assembly 30 has medium passage 31, compression space 111 selectively communicates with restoring space 112 through medium passage 31, the medium of compression space 111 may flow into restoring space 112 through medium passage 31, or the medium of compression space 111 may flow into restoring space 112 through medium passage 31 and first medium passage 201 (when first medium passage 201 is opened), the medium of restoring space 112 may flow into compression space 111 through medium passage 31, or the medium of restoring space 112 may flow into compression space 111 through medium passage 31 and first medium passage 201 (when first medium passage 201 is opened).

The first medium circulation space 35 is adapted to communicate with the medium passage 31 of the valve body assembly 30, that is, the medium can flow into the first medium circulation space 35 during the flow of the medium through the medium passage 31, the medium in the first medium circulation space 35 can be in contact with the overflow valve body 40, and when the medium in the first medium circulation space 35 accumulates to a certain amount, the medium in the first medium circulation space 35 can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening degree of the first medium passage 201. Specifically, the medium in the first medium circulation space 35 can drive the overflow valve body 40 to move away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201.

It will be appreciated that the damping of shock absorber 100 is relatively large when first medium passage 201 is closed or open is reduced, and that the damping of shock absorber 100 is relatively small when first medium passage 201 is open or open is increased. By making the medium in the first medium circulation space 35 able to drive the overflow valve body 40 to move to open the first medium channel 201 or increase the opening of the first medium channel 201, the damping of the shock absorber 100 can be changed, for example, the damping of the shock absorber 100 can be changed linearly, so that the use effect of the shock absorber 100 is improved, and the design of the valve structure can be reasonable.

Therefore, the valve structure and the valve body assembly 30 of the shock absorber 100 together define the first medium circulation space 35, and the overflow valve body 40 and the valve body assembly 30 form the first medium channel 201 therebetween, when the medium flowing into the first medium circulation space 35 through the medium channel 31 of the valve body assembly 30 accumulates to a certain amount, the medium in the first medium circulation space 35 can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening of the first medium channel 201, so that the damping of the shock absorber 100 is changed, and the use effect of the shock absorber 100 is improved.

As some embodiments of the present utility model, as shown in fig. 1 to 49, a shock absorber 100 according to an embodiment of the present utility model includes: housing 10 and valve body assembly 200. Valve body assembly 200 may include, among other things, a valve structure that may include an overflow valve body 40 and a mating valve 60, valve body assembly 30, and solenoid assembly 50, that is, valve body assembly 200 may include an overflow valve body 40 and a mating valve 60.

As shown in fig. 1 to 11, the housing 10 defines a receiving space 11, and the receiving space 11 has a medium therein, wherein the medium is a flowable medium and is capable of flowing in the receiving space 11. As some alternative embodiments of the application, the medium may be oil. As some alternative embodiments of the present application, the medium may be a gas-liquid mixed medium, the gas may be an inert gas, or the gas may be nitrogen.

The valve body assembly 30 divides the accommodating space 11 into a compression space 111 and a restoring space 112, wherein an outer sidewall of the valve body assembly 30 may be in sealing fit with an inner sidewall of the housing 10 (i.e., a sidewall forming the accommodating space 11) to divide the accommodating space 11 into the compression space 111 and the restoring space 112, specifically, a space located at one side of the valve body assembly 30 is the compression space 111, and a space located at the opposite side of the valve body assembly 30 is the restoring space 112. Both the overflow valve body 40 and the electromagnetic assembly 50 are positioned in the restoring space 112, and the overflow valve body 40 is positioned between the electromagnetic assembly 50 and the valve body assembly 30, that is, the overflow valve body 40 is positioned at a side of the electromagnetic assembly 50 near the valve body assembly 30, and a first medium passage 201 is formed between the overflow valve body 40 and the valve body assembly 30, through which a medium can flow through the first medium passage 201.

Solenoid assembly 50 is adapted to drive spill valve member 40 toward valve member 30 to adjust the opening of first media passageway 201. It should be noted that, when the electromagnetic assembly 50 is energized, a magnetic force is generated to make the two magnetic members generate a force that attracts each other, so that the two magnetic members move close to each other. By utilizing this principle, the relief valve body 40 may be driven to move closer to the valve body assembly 30 by the movement of the magnetic member. For example, overflow valve body 40 may be positioned between two magnetic elements that move toward each other upon energization of electromagnetic assembly 50 to move overflow valve body 40 toward valve body assembly 30. For another example, two magnetic elements are provided as the first magnetic element and the second magnetic element, the overflow valve body 40 can be arranged in the first magnetic element, then the overflow valve body 40 can pass through the first magnetic element through a driving rod or other structures, two ends of the driving rod or other structures are respectively abutted against the overflow valve body 40 and the second magnetic element, the first magnetic element is fixed relative to the second magnetic element, after the electromagnetic assembly 50 is electrified, the second magnetic element moves towards the first magnetic element due to the fact that the first magnetic element is fixed relative to the second magnetic element, and the driving rod (or other structures) can be driven to move when the second magnetic element moves, so that the overflow valve body 40 can be driven to move close to the valve body assembly 30. It will be appreciated that in such an embodiment, the first magnetic element is a static magnetic element and the second magnetic element is a dynamic magnetic element, the first magnetic element may be a mating valve 60 described below and the second magnetic element may be a magnetic core 80 described below.

As some alternative embodiments of the present application, solenoid assembly 50 may be capable of driving spill valve body 40 toward valve body assembly 30 to decrease the opening of first media passage 201, or solenoid assembly 50 may be capable of driving spill valve body 40 toward valve body assembly 30 to close first media passage 201. The electromagnetic assembly 50 drives the overflow valve body 40 to move close to the valve body assembly 30 to reduce the opening degree of the first medium channel 201 or close the first medium channel 201, and the product can be designed according to actual needs. For example, if it is desired that electromagnetic assembly 50 drive spill valve body 40 to move closer to valve body assembly 30 to reduce the opening of first media passageway 201 rather than to close first media passageway 201, it may be possible to design a limit in some configuration such that the magnetic element or spill valve body 40 cannot continue to move after a certain stroke, if it is desired that electromagnetic assembly 50 drive spill valve body 40 to move closer to valve body assembly 30 to close first media passageway 201, it may not be necessary to do so, when spill valve body 40 moves into contact with valve body assembly 30, first media passageway 201 may be closed, or it may be possible to design a drivable (also understood as adjustable) limit element to switch between reducing the opening of first media passageway 201 and closing first media passageway 201.

Valve body assembly 30 has a medium passage 31 through which compression space 111 selectively communicates with rebound space 112, and valve body assembly 200 is adapted to move within housing 10 in a first direction of shock absorber 100 (i.e., the X-direction shown in fig. 1) to vary the volumes of compression space 111 and rebound space 112. Specifically, when valve body assembly 200 moves in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, the medium in compression space 111 can flow into recovery space 112 through medium passage 31, and when valve body assembly 200 moves in the first direction of shock absorber 100 toward recovery space 112, the volume of recovery space 112 decreases, the volume of compression space 111 increases, and the medium in recovery space 112 can flow into compression space 111 through medium passage 31.

In an embodiment in which solenoid assembly 50 is capable of driving spill valve member 40 to move closer to valve member assembly 30 to close first medium passage 201, when first medium passage 201 is closed, medium in compression space 111 can flow into recovery space 112 through medium passage 31, and medium in recovery space 112 can flow into compression space 111 through medium passage 31. When the first medium passage 201 is opened, the medium in the compression space 111 can flow into the recovery space 112 through the medium passage 31 and the first medium passage 201, and the medium in the recovery space 112 can flow into the compression space 111 through the medium passage 31 and the first medium passage 201.

In an embodiment where solenoid assembly 50 is capable of driving spill valve body 40 toward valve body assembly 30 to reduce the opening of first media passage 201, when solenoid assembly 50 is not in operation, media within compression space 111 may flow into recovery space 112 through media passageway 31 and first media passage 201, and media within recovery space 112 may flow into compression space 111 through media passageway 31 and first media passage 201. When electromagnetic assembly 50 is operated, the opening degree of first medium passage 201 is reduced, and the medium in compression space 111 can flow into recovery space 112 through medium passage 31 and reduced-opening first medium passage 201, and the medium in recovery space 112 can flow into compression space 111 through medium passage 31 and reduced-opening first medium passage 201.

It will be appreciated that when the first medium passage 201 is closed or the opening degree is reduced, the damping of the shock absorber 100 is relatively large, and the shock absorber 100 in this state can be applied to a case where the vehicle is running on an uneven road surface, and when the first medium passage 201 is opened or the opening degree is increased, the damping of the shock absorber 100 is relatively small, and the shock absorber 100 in this state can be applied to a case where the vehicle is running on a relatively flat road surface.

In short, shock absorber 100 of the present application has at least two operating states, one of which is that electromagnetic assembly 50 is not operated and first medium passage 201 is opened or opened to a large extent, and the damping of shock absorber 100 of this operating state is relatively small, so that it can be applied to a case where a vehicle is traveling on a relatively flat road surface. Secondly, when the electromagnetic assembly 50 works, the first medium channel 201 is closed or the opening degree is smaller, and the damping of the shock absorber 100 in the working state is relatively larger, so that the shock absorber is applicable to the situation that the vehicle runs on an uneven road surface.

As some alternative embodiments of the present application, solenoid assembly 50 may be activated automatically based on road and vehicle jolt conditions, and solenoid assembly 50 may also be activated based on driver instructions.

It is understood that closing the first medium channel 201 may also be understood as adjusting the opening of the first medium channel 201, and closing the first medium channel 201 may be understood as adjusting the opening of the first medium channel 201 to zero.

Therefore, the damper 100 of the present application can drive the overflow valve 40 to move according to the actual requirement to adjust the opening of the first medium channel 201, so as to adjust the damping of the damper 100 according to the actual requirement, thereby being capable of meeting various road conditions and being beneficial to improving riding experience of passengers.

As some alternative embodiments of the present application, the vehicle is equipped with shock absorbers 100 in the wheel region to reduce jounce of the vehicle during travel. When the relative movement of the vehicle body and the wheels occurs, the valve body assembly 200 can move in the first direction of the shock absorber 100, the medium can flow from the restoring space 112 into the compressing space 111 or from the compressing space 111 into the restoring space 112 to play a role of damping, and the heat energy converted from the vibration energy into the oil and gas can be emitted to the atmosphere, so that the shock absorber 100 can operate in a lower temperature range for a long time, which is advantageous for improving the damping effect of the shock absorber 100.

In some embodiments of the present utility model, as shown in fig. 5, 6, and 11, the medium is adapted to drive the relief valve body 40 away from the valve body assembly 30 to adjust the opening of the first medium passage 201.

As can be seen from the foregoing, as some alternative embodiments of the present application, shock absorber 100 of the present application has at least two operating states, one in which electromagnetic assembly 50 is not operating and the other in which electromagnetic assembly 50 is operating. When the electromagnetic assembly 50 is operated, the electromagnetic assembly 50 can drive the overflow valve body 40 to move close to the valve body assembly 30 to reduce the opening degree of the first medium passage 201 or close the first medium passage 201, and in this operating state, the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening degree of the first medium passage 201. Specifically, if electromagnetic assembly 50 is capable of driving overflow valve body 40 to move closer to valve body assembly 30 to close first media passage 201, media is capable of driving overflow valve body 40 away from valve body assembly 30 to open first media passage 201, and if electromagnetic assembly 50 is capable of driving overflow valve body 40 to move closer to valve body assembly 30 to reduce the opening of first media passage 201, media is capable of driving overflow valve body 40 away from valve body assembly 30 to increase the opening of first media passage 201.

Wherein, in an embodiment in which solenoid assembly 50 is capable of driving spill valve body 40 to move closer to valve body assembly 30 to close first medium passage 201, when solenoid assembly 50 is in operation, valve body assembly 200 decreases in volume of compression space 111 and increases in volume of recovery space 112 during movement of shock absorber 100 toward compression space 111, medium in compression space 111 can flow into recovery space 112 through medium passage 31, and medium can drive spill valve body 40 away from valve body assembly 30 to open first medium passage 201, so that medium can flow into recovery space 112 through medium passage 31 and first medium passage 201. During movement of valve body assembly 200 in the first direction of shock absorber 100 toward recovery space 112, the volume of recovery space 112 decreases, the volume of compression space 111 increases, the medium within recovery space 112 can compress space 111 through medium passage 31, and the medium can drive relief valve body 40 away from valve body assembly 30 to open first medium passage 311, so that the medium can flow into compression space 111 through medium passage 31 and first medium passage 201.

In an embodiment in which solenoid assembly 50 is capable of driving spill valve body 40 toward valve body assembly 30 to decrease the opening of first medium passage 201, when solenoid assembly 50 is in operation, valve body assembly 200 decreases in volume of compression space 111 and increases in volume of recovery space 112 during movement of shock absorber 100 toward compression space 111, medium in compression space 111 can flow into recovery space 112 through medium passage 31 and decreasing opening first medium passage 201, and medium can drive spill valve body 40 away from valve body assembly 30 to increase the opening of first medium passage 201, so that medium can flow into recovery space 112 through medium passage 31 and increasing opening first medium passage 201. During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward recovery space 112, the volume of recovery space 112 decreases, the volume of compression space 111 increases, the medium in recovery space 112 can flow into compression space 111 through medium passage 31 and the first medium passage 201 of reduced opening, and the medium can drive relief valve body 40 to move away from valve body assembly 30 to increase the opening of first medium passage 311, so that the medium can flow into compression space 111 through medium passage 31 and the first medium passage 201 of increased opening.

It will be appreciated that when the first medium passage 201 is closed or the opening degree is reduced, the damping of the shock absorber 100 is relatively large, and the shock absorber 100 in this state can be suitably used in a case where the vehicle is running on an uneven road surface. By configuring the shock absorber 100 in a structural form in which the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening degree of the first medium passage 201, when the vehicle jounce amplitude is too large, the medium can open the first medium passage 201 or increase the opening degree of the first medium passage 201 to increase the medium flow rate, so as to reduce the damping of the shock absorber 100, so as to improve the damping effect of the shock absorber 100, and thus the riding experience of passengers can be improved.

It should be explained that, when the vehicle jounce amplitude is too large, the volume change of the compression space 111 and the recovery space 112 per unit time is large, so that a large amount of medium needs to flow between the compression space 111 and the recovery space 112, however, since the first medium passage 201 is closed or the opening degree is reduced when the electromagnetic assembly 50 is operated, the medium cannot flow rapidly, the medium is accumulated at the overflow valve body 40, and a large amount of medium can push the overflow valve body 40 to move to open the first medium passage 201 or increase the opening degree of the first medium passage 201. By the aid of the arrangement, a vehicle with the shock absorber 100 provided by the application has a good shock absorbing effect, and riding experience of passengers is improved.

In some embodiments of the present application, as shown in fig. 1 to 20, the medium passage 31 may include a first medium passage 311 and a second medium passage 312, the medium in the compression space 111 may flow into the recovery space 112 through the first medium passage 311, and the medium in the recovery space 112 may flow into the compression space 111 through the second medium passage 312, wherein the first medium passage 311 and the second medium passage 312 are unidirectional passages.

Wherein, valve body assembly 30 has medium passage 31, compression space 111 and restoration space 112 can selectively communicate through medium passage 31. Specifically, during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, and the medium in compression space 111 can flow into recovery space 112 through first medium passage 311. During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward recovery space 112, the volume of recovery space 112 decreases, the volume of compression space 111 increases, and the medium in recovery space 112 can flow into compression space 111 through second medium passage 312.

Further, both the first medium passage 311 and the second medium passage 312 may be constructed as unidirectional passages, that is, the medium in the compression space 111 may flow into the recovery space 112 through the first medium passage 311, but the medium in the compression space 111 may not flow into the recovery space 112 through the second medium passage 312, the medium in the recovery space 112 may flow into the compression space 111 through the second medium passage 312, but the medium in the recovery space 112 may not flow into the compression space 111 through the first medium passage 311.

When the valve body assembly 200 moves in different directions, the compression space 111 and the recovery space 112 are communicated through different passages, so that the medium can smoothly circulate, the stability of vibration reduction is improved, and as an optional effect, in the above embodiment, the second magnetic member does not need to be provided with a ventilation structure, and the manufacturing difficulty of the second magnetic member is reduced.

In some embodiments of the present application, as shown in fig. 3-6, 13, 19, the first medium passage 311 may include: the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113, wherein the second sub-medium passage 3112 may communicate between the first sub-medium passage 3111 and the third sub-medium passage 3113, that is, the first sub-medium passage 3111 may communicate with the second sub-medium passage 3112, and the third sub-medium passage 3113 may communicate with the second sub-medium passage 3112. Further, the first medium passage 311 may communicate with the compression space 111, the third sub medium passage 3113 may communicate with the restoration space 112, and both the first sub medium passage 3111 and the third sub medium passage 3113 may be unidirectional passages. During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases and the volume of recovery space 112 increases, and the medium in compression space 111 can flow into recovery space 112 through first sub-medium passage 3111, second sub-medium passage 3112 and third sub-medium passage 3113 in this order.

Further, each of the first sub-medium passage 3111 and the third sub-medium passage 3113 may be structured as a one-way passage, that is, the medium in the compression space 111 may flow into the recovery space 112 through the first sub-medium passage 3111 and the third sub-medium passage 3113, but the medium in the recovery space 112 may not flow into the compression space 111 through the first sub-medium passage 3111 and the third sub-medium passage 3113.

The arrangement makes it possible to make the structure of the first medium passage 311 reasonable, to make the medium in the compression space 111 flow into the restoring space 112 through the first sub-medium passage 3111, the second sub-medium passage 3112 and the third sub-medium passage 3113 in this order, and to prevent the medium in the restoring space 112 from flowing into the compression space 111 through the first sub-medium passage 3111 and the third sub-medium passage 3113, so that the medium can smoothly circulate, and the stability of vibration reduction can be improved.

As some alternative embodiments of the present application, as shown in fig. 3-6, 13, and 19, the first sub-medium via 3111 and the third sub-medium via 3113 may extend in a first direction (i.e., X direction shown in fig. 1), and the second sub-medium via 3112 may extend in a second direction (i.e., Y direction shown in fig. 1), wherein the first direction is perpendicular to the second direction. The arrangement can lead the extending directions of the first sub-medium passage 3111, the second sub-medium passage 3112 and the third sub-medium passage 3113 to be reasonable, is favorable for reducing the manufacturing difficulty of the valve body assembly 30, and can reasonably design the extending directions of a plurality of passages, is favorable for reducing the volume of the valve body assembly 30, is favorable for saving materials, and can reduce the production cost of the valve body assembly 30.

In some embodiments of the present application, as shown in fig. 3-6 and 19, a check valve 32 may be disposed in each of the first sub-medium passage 3111 and the third sub-medium passage 3113. By providing the check valves 32 in the first sub-medium passage 3111 and the third sub-medium passage 3113, both the first sub-medium passage 3111 and the third sub-medium passage 3113 can be configured as one-way passages, and the first medium passage 311 can be configured as one-way passages.

Any type of check valve 32 may be used for the check valve 32. As some alternative embodiments of the present application, as shown in fig. 21, the check valve 32 may include a flat screw 321, a spring 322 and a steel ball 323, and the magnitude of the spring force and the size of the liquid passing aperture of the flat screw 321 may be adjusted according to actual requirements to adjust the damping of the shock absorber 100.

In some embodiments of the present application, as shown in fig. 3, 4, 13, and 19, a third sub-medium passage 3113 may be provided at an outer sidewall of the valve body assembly 30. The outer side wall of the valve body assembly 30 may be engaged with the inner side wall of the casing 10, and by providing the third sub-medium passage 3113 on the outer side wall of the valve body assembly 30, a portion of the side wall of the third sub-medium passage 3113 may be formed by the valve body assembly 30, and another portion of the side wall of the third sub-medium passage 3113 may be formed by the inner side wall of the casing 10, the arrangement may be such that the installation position of the third sub-medium passage 3113 is reasonable, and the medium in the compression space 111 may smoothly flow into the recovery space 112.

It should be noted that, as shown in fig. 1, since the third sub-medium passage 3113 is disposed on the outer side wall of the valve body assembly 30, along the first direction, the outer side wall of the valve body assembly 30 without the third sub-medium passage 3113 may be in sealing engagement with the inner side wall of the housing 10 (i.e., the side wall forming the accommodating space 11).

In some embodiments of the present application, as shown in fig. 1,2, 7-11, 14 and 20, the second medium passage 312 may include: a fourth sub-medium path 3121, a fifth sub-medium path 3122, and a sixth sub-medium path 3123, wherein the fifth sub-medium path 3122 communicates between the fourth sub-medium path 3121 and the sixth sub-medium path 3123, that is, the fourth sub-medium path 3121 can communicate with the fifth sub-medium path 3122, and the sixth sub-medium path 3123 can communicate with the fifth sub-medium path 3122. Further, the fourth sub-medium passage 3121 may communicate with the restoring space 112, the sixth sub-medium passage 3123 may communicate with the compressing space 111, and both the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 may be unidirectional passages. During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward restoring space 112, the volume of restoring space 112 decreases, the volume of compressing space 111 increases, and the medium in restoring space 112 can flow into compressing space 111 through fourth sub-medium passage 3121, fifth sub-medium passage 3122, and sixth sub-medium passage 3123 in this order.

Further, each of the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 may be structured as a one-way passage, that is, the medium in the restoring space 112 may flow into the compression space 111 through the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123, but the medium in the compression space 111 may not flow into the restoring space 112 through the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123.

By arranging in this way, the structure of the second medium passage 312 can be reasonable, the medium in the restoring space 112 can flow into the compressing space 111 through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 in sequence, and the medium in the compressing space 111 can be prevented from flowing into the restoring space 112 through the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123, so that the circulation of the medium is smooth, and the stability of vibration reduction is facilitated to be improved.

In some embodiments of the present application, as shown in fig. 1, 2, 7-11, and 20, a check valve 32 may be provided in each of the fifth and sixth sub-medium passages 3122 and 3123. By providing the check valves 32 in the fifth and sixth sub-medium passages 3122 and 3123, the fifth and sixth sub-medium passages 3122 and 3123 can each be configured as a one-way passage, so that the second medium passage 312 can be configured as a one-way passage.

In some embodiments of the present application, as shown in fig. 7, 14 and 20, the fourth sub-medium passage 3121 may be provided at an outer side wall of the valve body assembly 30. It should be noted that, by providing the fourth sub-medium passage 3121 on the outer side wall of the valve body assembly 30, a part of the side wall of the fourth sub-medium passage 3121 may be formed by the valve body assembly 30, and another part of the side wall of the fourth sub-medium passage 3121 may be formed by the inner side wall of the housing 10, the arrangement of which makes it possible to rationalize the installation position of the fourth sub-medium passage 3121 and to allow the medium in the recovery space 112 to smoothly flow into the compression space 111.

It should be noted that, as shown in fig. 7, since the fourth sub-medium passage 3121 is provided at the outer side wall of the valve body assembly 30, the outer side wall of the valve body assembly 30 having no fourth sub-medium passage 3121 may be in sealing engagement with the inner side wall of the housing 10 (i.e., the side wall forming the accommodating space 11) along the first direction. In addition, along the first direction, the third sub-medium passage 3113 and the fourth sub-medium passage 3121 are disposed on the same side of the valve body assembly 30, for example, the third sub-medium passage 3113 and the fourth sub-medium passage 3121 are disposed on a portion of the valve body assembly 30 near the restoring space 112, so that an outer sidewall of the valve body assembly 30 on a side away from the restoring space 112 can be in sealing engagement with an inner sidewall of the housing 10 (i.e., a sidewall forming the accommodating space 11).

Further, a first communication path 3124 may be communicated between the fourth sub-medium path 3121 and the fifth sub-medium path 3122, and the first communication path 3124 may have an angle with respect to the fourth sub-medium path 3121 and/or the fifth sub-medium path 3122.

As some alternative embodiments of the present application, the fourth sub-medium path 3121 may be extended in the first direction, and the extension direction of the first communication path 3124 and the extension direction of the fourth sub-medium path 3121 have an angle, that is, the extension direction of the first communication path 3124 and the extension direction of the fourth sub-medium path 3121 are not parallel.

As some alternative embodiments of the present application, the fifth sub-medium passage 3122 may be extended in the first direction, and the extension direction of the first communication passage 3124 and the extension direction of the fifth sub-medium passage 3122 have an angle, that is, the extension direction of the first communication passage 3124 and the extension direction of the fifth sub-medium passage 3122 are not parallel.

As some alternative embodiments of the present application, as shown in fig. 7, 11 and 20, the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122 may each be provided to extend in the first direction, and the first communication passage 3124 is communicated between the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. The extending direction of the first communication path 3124 and the extending direction of the fourth sub-medium path 3121 have an angle, that is, the extending direction of the first communication path 3124 and the extending direction of the fourth sub-medium path 3121 are not parallel, and the extending direction of the first communication path 3124 and the extending direction of the fifth sub-medium path 3122 have an angle, that is, the extending direction of the first communication path 3124 and the extending direction of the fifth sub-medium path 3122 are not parallel. The arrangement can make the extending directions of the fourth sub-medium passage 3121, the fifth sub-medium passage 3122 and the first communication passage 3124 reasonable, which is favorable for reducing the manufacturing difficulty of the valve body assembly 30, and the arrangement can reasonably design the extending directions of a plurality of passages, which is favorable for reducing the volume of the valve body assembly 30 and saving materials, thereby reducing the production cost of the valve body assembly 30.

As some optional embodiments of the present application, as shown in fig. 1, 2, 7-11 and 20, the fourth sub-medium passage 3121, the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 may be extended along the first direction, and the extension direction of the first communication passage 3124 and the extension direction of the fourth sub-medium passage 3121, the extension direction of the fifth sub-medium passage 3122 and the extension direction of the sixth sub-medium passage 3123 are all angled, so that the extension directions of the plurality of passages can be reasonably designed, and the production cost of the valve body assembly 30 can be further reduced.

In some embodiments of the present application, as shown in fig. 3-6, 9-11, 13, and 19, the plurality of medium passages 31 may further include a third medium passage 313, the third medium passage 313 may be communicated between the first sub-medium passage 3111 and the second sub-medium passage 3112, and the third medium passage 313 may be communicated between the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123.

Specifically, during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, and the medium in compression space 111 can flow into recovery space 112 through first sub-medium passage 3111, second sub-medium passage 3112, and third sub-medium passage 3113 in this order. When the medium flows into the first sub-medium passage 3111, the medium can flow from the first sub-medium passage 3111 into the third medium passage 313, and then flow from the third medium passage 313 into the second sub-medium passage 3112.

During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward restoring space 112, the volume of restoring space 112 decreases, the volume of compressing space 111 increases, and the medium in restoring space 112 can flow into compressing space 111 through fourth sub-medium passage 3121, fifth sub-medium passage 3122, and sixth sub-medium passage 3123 in this order. Also, when the medium flows into the fifth sub-medium passage 3122, the medium can flow from the fifth sub-medium passage 3122 into the third medium passage 313 and then from the third medium passage 313 into the sixth sub-medium passage 3123.

By arranging in this way, the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression tool can flow through the third medium passage 313, so that the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression space 111 can share the third medium passage 313 on the basis of not influencing the unidirectional conduction of the first medium passage 311 and the unidirectional conduction of the second medium passage 312, the construction form of the medium passage 31 of the valve body assembly 30 can be reasonable, the volume of the valve body assembly 30 can be further reduced, the material can be further saved, and the production cost of the valve body assembly 30 can be further reduced.

In some embodiments of the present application, as shown in fig. 1-20, the valve body assembly 30 may include a valve body 33 and a valve cap 34, the valve cap 34 may be located between the valve body 33 and the relief valve body 40, that is, the valve cap 34 may be located at a time of the valve body 33 near the relief valve body 40, and the valve cap 34 may be fixed to the valve body 33, as some alternative embodiments of the present application, the valve cap 34 may be fixed to the valve body 33 by, but not limited to, welding, screwing. The valve body 33 may be provided with a portion of the first medium passage 311, a portion of the second medium passage 312, and a portion of the third medium passage 313, and the valve cover 34 may be provided with another portion of the first medium passage 311, another portion of the second medium passage 312, and another portion of the third medium passage 313. That is, the valve body 33 may have a portion of the first medium passage 311, a portion of the second medium passage 312, and a portion of the third medium passage 313, and the valve cover 34 may have another portion of the first medium passage 311, another portion of the second medium passage 312, and another portion of the third medium passage 313.

As some alternative embodiments of the present application, a first medium passage 201 is formed between the valve cover 34 and the overflow valve body 40.

As some alternative embodiments of the present application, as shown in fig. 3-9 and 19, a first sub-medium passage 3111 may extend through the valve body assembly 30 in a first direction (i.e., X-direction shown in fig. 1), that is, the first sub-medium passage 3111 may extend through the valve body 33 and the valve cover 34 in the first direction, a second sub-medium passage 3112 may be formed within the valve body 33, a portion of a third sub-medium passage 3113 may be formed in the valve body 33, another portion of the third sub-medium passage 3113 may be formed in the valve cover 34, and the third sub-medium passage 3113 may extend through the valve cover 34 in the first direction (i.e., X-direction shown in fig. 1).

A portion of the fourth sub-medium passage 3121 may be formed at the valve body 33, another portion of the fourth sub-medium passage 3121 may be formed at the valve cover 34, and the fourth sub-medium passage 3121 may extend through the valve cover 34 in the first direction (i.e., the X direction shown in fig. 1). A portion of the fifth sub-medium passage 3122 may be formed at the valve body 33, another portion of the fifth sub-medium passage 3122 may be formed at the valve cover 34, and the fifth sub-medium passage 3122 may extend through the valve cover 34 in the first direction (i.e., the X direction shown in fig. 1). The sixth sub-medium passage 3123 may be formed in the valve body 33, and the first communication passage 3124 may be formed in the valve body 33.

By constructing the valve body assembly 30 to include the valve body 33 and the valve cap 34, the valve body assembly 30 can be made to have a reasonable structural form, and the first medium passage 311, the second medium passage 312, and the third medium passage 313 can be easily formed in the valve body assembly 30, which is advantageous in reducing the difficulty of manufacturing the valve body assembly 30.

In some embodiments of the present application, as shown in fig. 1 to 11 and 15 to 20, the valve cover 34 may have a first boss 341 protruding toward the overflow valve body 40, the first boss 341 may be a hollow structure 3411, and a hollow portion of the first boss 341 may be configured as a part of the third medium passage 313. That is, a portion of the third medium passage 313 may be formed at the valve body 33, and another portion of the third medium passage 313 may be formed at the valve cover 34, specifically, another portion of the third medium passage 313 may be formed as a hollow portion of the first boss 341.

The sidewall of the first boss 341 may be provided with at least one first communication hole 3412, wherein the number of the first communication holes 3412 may be one, or the number of the first communication holes 3412 may be plural, and the plurality of the first communication holes 3412 may be disposed at intervals around the circumference of the first boss 341. The first communication hole 3412 may communicate the first sub-medium passage 3111 and the third medium passage 313, and the first communication hole 3412 may communicate the fifth sub-medium passage 3122 and the third medium passage 313.

Specifically, during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, and the medium in compression space 111 can flow into recovery space 112 through first sub-medium passage 3111, second sub-medium passage 3112, and third sub-medium passage 3113 in this order. When the medium flows into the first sub-medium passage 3111, the medium can flow out of the valve body assembly 30, and then the medium can flow into the third medium passage 313 through the first communication hole 3412, and then flow from the third medium passage 313 into the second sub-medium passage 3112.

During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward restoring space 112, the volume of restoring space 112 decreases, the volume of compressing space 111 increases, and the medium in restoring space 112 can flow into compressing space 111 through fourth sub-medium passage 3121, fifth sub-medium passage 3122, and sixth sub-medium passage 3123 in this order. Also, when the medium flows into the fifth sub-medium passage 3122, the medium can flow out of the valve body assembly 30 from the fifth sub-medium passage 3122, then the medium can flow into the third medium passage 313 through the first communication hole 3412, and then flow into the sixth sub-medium passage 3123 from the third medium passage 313.

By providing such a configuration, the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression space 111 can flow through the first communication hole 3412, the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression space 111 can share the first communication hole 3412, and the structure of the medium passage 31 of the valve body assembly 30 can be made reasonable.

In some embodiments of the present application, as shown in fig. 1-11 and 26-28, the valve body assembly 200 may further include a mating valve 60, the mating valve 60 may be sleeved outside the relief valve body 40, that is, the relief valve body 40 may be located inside the mating valve 60, the mating valve 60 may be fixedly connected to the valve body assembly 30, as some alternative embodiments of the present application, an end of the mating valve 60 facing the valve body assembly 30 may be fixedly connected to the valve cover 34, and the mating valve 60 may be sleeved outside the first boss 341.

As shown in fig. 3-6, 8, 9, and 11, the mating valve 60, the valve body assembly 30, and the relief valve body 40 may collectively define a first medium circulation space 35, each of the first sub-medium passage 3111 and the fifth sub-medium passage 3122 may extend through the valve cover 34 in the first direction, the first medium circulation space 35 may communicate the first communication hole 3412 and the first sub-medium passage 3111, and the first medium circulation space 35 may communicate the first communication hole 3412 and the fifth sub-medium passage 3122.

Specifically, after the medium in compression space 111 flows into first sub-medium passage 3111 during movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the medium may flow out of valve body assembly 30 through first sub-medium passage 3111 and into first medium circulation space 35, then the medium in first medium circulation space 35 may flow into third medium passage 313 through first communication hole 3412, and then flow from third medium passage 313 into second sub-medium passage 3112, since first sub-medium passage 3111 penetrates valve cover 34 in the first direction.

During the movement of the valve body assembly 200 toward the restoring space 112 in the first direction of the shock absorber 100, the medium in the restoring space 112 can sequentially pass through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122, and after the medium flows into the fifth sub-medium passage 3122, since the first sub-medium passage 3111 penetrates the valve cover 34 in the fifth direction, the medium can flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and into the first medium circulation space 35, and then the medium in the fifth medium circulation space can flow into the third medium passage 313 through the first communication hole 3412 and then flow into the sixth sub-medium passage 3123 from the third medium passage 313.

The arrangement allows the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression tool to flow through the first medium circulation space 35, so that the medium flowing from the compression space 111 into the recovery space 112 and the medium flowing from the recovery space 112 into the compression space 111 can share the first medium circulation space 35 on the basis of not affecting the unidirectional conduction of the first medium passage 311 and the unidirectional conduction of the second medium passage 312, the space outside the valve body assembly 30 can be utilized, and the space outside the valve body assembly 30 is also included in the medium circulation path, thereby the space of the shock absorber 100 can be reasonably utilized, the design of the shock absorber 100 is reasonable, the design rationality of the shock absorber 100 is improved, the internal structure of the valve body assembly 30 is facilitated to be simplified, and the production difficulty of the valve body assembly 30 is facilitated to be reduced.

In some embodiments of the present application, solenoid assembly 50 is adapted to drive spill valve member 40 toward valve member 30 to decrease the opening of first media passage 201 or to close first media passage 201, and in an operational mode in which solenoid assembly 50 decreases the opening of first media passage 201 or closes first media passage 201, media at first media circulation space 35 is adapted to drive spill valve member 40 away from valve member 30 to increase the opening of first media passage 201 or to open first media passage 201.

Specifically, in the operation mode in which the solenoid assembly 50 reduces the opening degree of the first medium passage 201 or closes the first medium passage 201, after the medium in the compression space 111 flows into the first sub-medium passage 3111 during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 toward the compression space 111, since the first sub-medium passage 3111 penetrates the valve cover 34 in the first direction, the medium can flow out of the valve body assembly 30 through the first sub-medium passage 3111 and into the first medium circulation space 35, at this time, if the solenoid assembly 50 closes the first medium passage 201, the medium in the first medium circulation space 35 can flow into the third medium passage 313 only through the first communication hole 3412, and if the solenoid assembly 50 reduces the opening degree of the first medium passage 201, the medium in the first medium circulation space 35 can flow into the third medium passage 313 through the first communication hole 3412, and the medium in the first medium circulation space 35 can also flow toward the recovery space 112 through the first medium passage 201 with the reduced opening degree.

It should be noted that, whether the electromagnetic assembly 50 decreases the opening degree of the first medium passage 201 or closes the first medium passage 201, the amount of medium accumulated in the first medium passage space 35 is larger than the amount flowing through the first medium passage space 35, that is, a large amount of medium accumulates in the first medium passage space 35 during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 toward the compression space 111, and since the mating valve 60, the valve body assembly 30 and the overflow valve body 40 together define the first medium passage space 35, the medium accumulated in the first medium passage space 35 has a contact surface with the overflow valve body 40, the medium accumulated in the first medium passage space 35 applies a pushing force to the overflow valve body 40 to move the overflow valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201, so that the medium accumulated in the first medium passage space 35 flows through the opened first medium passage 201 or the first medium passage 201 with increased opening degree.

In the operation mode in which the solenoid assembly 50 reduces the opening degree of the first medium passage 201 or closes the first medium passage 201, after the medium in the recovery space 112 flows into the fifth sub-medium passage 3122 during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 toward the recovery space 112, since the first sub-medium passage 3111 penetrates the valve cover 34 in the fifth direction, the medium can flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and into the first medium circulation space 35, at this time, if the solenoid assembly 50 closes the first medium passage 201, the medium in the first medium circulation space 35 can flow into the third medium passage 313 only through the first communication hole 3412, and if the solenoid assembly 50 reduces the opening degree of the first medium passage 201, the medium in the first medium circulation space 35 can flow into the third medium passage 313 through the first communication hole 3412, and the medium in the first medium circulation space 35 can also flow toward the compression space 111 through the first medium passage 201 with the reduced opening degree.

It should be noted that, whether solenoid assembly 50 decreases the opening of first medium passage 201 or closes first medium passage 201, the amount of medium accumulated in first medium circulation space 35 is larger than the amount of medium flowing out through first medium circulation space 35, that is, a large amount of medium accumulates in first medium circulation space 35 during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward restoring space 112. In this case, the present application proposes two embodiments, one of which is the same as that described above, in that the mating valve 60, the valve body assembly 30 and the overflow valve body 40 together define the first medium circulation space 35, the medium accumulated in the first medium circulation space 35 has a contact surface with the overflow valve body 40, and the medium accumulated in the first medium circulation space 35 applies a pushing force to the overflow valve body 40 to move the overflow valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201, so that the medium accumulated in the first medium circulation space 35 flows through the opened first medium passage 201 or the first medium passage 201 of increased opening degree.

Second, another flow path may be opened in the overflow valve body 40, the medium accumulated in the first medium circulation space 35 may flow through the flow path opened in the overflow valve body 40, and the medium may flow into the third medium passage from the inside of the overflow valve body 40 through the flow path opened in the overflow valve body 40, and the medium flowing through the flow path opened in the overflow valve body 40 may accumulate on the side of the overflow valve body 40 facing the valve body assembly 30, and the accumulated medium may apply a thrust force to the overflow valve body 40 to move the overflow valve body 40 in a direction away from the valve body assembly 30, so as to open the first medium passage 201 or increase the opening of the first medium passage 201, so that the medium accumulated in the first medium circulation space 35 may flow through the opened first medium passage 201 or the first medium passage 201 with increased opening. (for a specific flow path design of the relief valve body 40, reference is made to the following

It should be explained that, when the electromagnetic assembly 50 works, the damping of the shock absorber 100 is larger, and the medium at the first medium circulation space 35 of the shock absorber 100 can drive the overflow valve 40 to move away from the valve assembly 30 to increase the opening of the first medium channel 201 or open the first medium channel 201, so that the vehicle using the shock absorber 100 provided by the application has a good damping effect, which is beneficial to improving riding experience of passengers.

In some embodiments of the present application, as shown in fig. 4 to 6, 8 to 11, and 15 to 20, the top wall of the first boss 341 may have at least one second communication hole 3413, and the second communication hole 3413 may communicate the third medium passage 313 and the first medium passage 201. The number of the second communication holes 3413 may be one, or the number of the second communication holes 3413 may be plural, the plurality of second communication holes 3413 may be circumferentially spaced apart, and the second communication holes 3413 may penetrate through the top wall of the first boss 341 to communicate the third medium passage 313 with the first medium passage 201.

Specifically, after the medium in the compression space 111 flows into the first sub-medium passage 3111, the medium may flow out of the valve body assembly 30 through the first sub-medium passage 3111 and into the first medium circulation space 35, the medium in the first medium circulation space 35 may flow into the first medium channel 201, and then the medium may flow into the third medium passage 313 through the second communication hole 3413 and sequentially flow into the restoring space 112 through the second sub-medium passage 3112 and the third sub-medium passage 3113.

After the medium in the restoring space 112 flows into the fifth sub-medium passage 3122, the medium may flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and into the first medium circulation space 35, the medium in the first medium circulation space 35 may flow into the first medium channel 201, and then the medium may flow into the third medium passage 313 through the second communication hole 3413 and into the compression space 111 through the sixth sub-medium passage 3123.

By providing the second communication hole 3413 which communicates the third medium passage 313 with the first medium passage 201 in the top wall of the first boss 341, the medium flowing into the first medium passage 201 can be made to enter the third medium passage 313 through the second communication hole 3413, and since the medium flowing into the restoring space 112 from the compressing space 111 and the medium flowing into the compressing space 111 from the restoring space 112 share the third medium passage 313, the medium flowing into the third medium passage 313 from the first medium passage 201 through the second communication hole 3413 can flow into the restoring space 112 or the compressing space 111, the flow path arrangement of the shock absorber 100 can be made reasonable and smart, the shock absorber 100 can have various operation modes, the vehicle to which the shock absorber 100 provided by the present application is applied can have a good shock absorbing effect, and the flow path flowing from the compressing space 111 to the restoring space 112 and the flow path flowing from the restoring space 112 share a partial flow path, which is favorable for reducing the manufacturing quantity of the flow path and reducing the difficulty in manufacturing the shock absorber 100.

In some embodiments of the present application, as shown in fig. 2-5 and 22-25, the valve body assembly 200 may further include a first elastic member 41, wherein the relief valve body 40 may have a relief valve guide post 45 extending toward the valve body assembly 30, the first elastic member 41 may be sleeved on the relief valve guide post 45, and the first elastic member 41 may be stopped between the relief valve body 40 and the valve body assembly 30, specifically, one end of the first elastic member 41 may be stopped against the relief valve body 40, and the other end of the first elastic member 41 may be stopped against the valve cover 34 of the valve body assembly 30.

As some alternative embodiments of the present application, the second communication hole 3413 may be disposed on the circumferential outer side of the first elastic member 41, so that the disposition of the second communication hole 3413 may be reasonable, and the top wall of the first boss 341 may be able to provide both the abutment position for the first elastic member 41 and the disposition position for the second communication hole 3413.

The first elastic member 41 is adapted to drive the relief valve body 40 away from the valve body assembly 30 to open the first medium passage 201 or to increase the opening degree of the first medium passage 201. It should be noted that, when the electromagnetic assembly 50 is not in operation, the first medium channel 201 is in a normally open state under the thrust of the first elastic member 41, in other words, when the electromagnetic assembly 50 is not in operation, the relief valve body 40 is spaced apart from the valve body assembly 30 along the first direction under the thrust of the first elastic member 41. By arranging the first elastic member 41, the electromagnetic assembly 50 is not required to work in most of the application time of the shock absorber 100, which is beneficial to saving energy consumption.

It should be noted that, the elastic force of the first elastic member 41 and the contact area between the medium and the overflow valve body 40 when the medium is located in the first medium circulation space 35 may be adjusted according to the actual requirement, and the flow areas of any one of the first medium passage 311 and the second medium passage 312, the third medium passage 313, the first communication passage 3124, the flow area of the at least one first communication hole 3412, the flow area of the at least one second communication hole 3413 may be adjusted according to the actual requirement, so that the damping of the shock absorber 100 may be adapted to different vehicle types.

The mating valve 60, the valve body assembly 30, and the relief valve body 40 may collectively define a first media flow space 35, wherein the relief valve body 40 has a relief valve media passage 4231,

The relief valve body 40 may have a relief valve medium passage 4231, the first medium circulation space 35 may communicate with the second medium passage 312 and the relief valve medium passage 4231, and the relief valve medium passage 4231 may communicate with the second medium passage 312. Specifically, the first medium circulation space 35 may communicate the fifth sub-medium passage 3122 and the relief valve medium passage 4231 of the second medium passage 312, and the relief valve medium passage 4231 may communicate with the sixth sub-medium passage 3123 in the second medium passage 312 through the second communication hole 3413, the third medium passage 313.

It should be noted that, during operation of electromagnetic assembly 50, whether electromagnetic assembly 50 decreases the opening degree of first medium passage 201 or closes first medium passage 201, the amount of medium accumulated in first medium circulation space 35 is larger than the amount of medium flowing out through first medium circulation space 35, that is, a large amount of medium accumulates in first medium circulation space 35 during movement of valve body assembly 200 in the first direction of shock absorber 100 toward restoring space 112. At this time, since the first medium circulation space 35 communicates the second medium passage 312 and the relief valve medium passage 4231, the medium flowing into the first medium circulation space 35 through the fifth sub-medium passage 3122 of the second medium passage 312 can flow into the relief valve medium passage 4231, and then the medium flowing into the relief valve medium passage 4231 can flow into the sixth sub-medium passage 3123 in the second medium passage 312 through the second communication hole 3413 and the third medium passage 313 in order to flow into the compression space 111. In addition, the medium flowing through the relief valve medium passage 4231 to the third medium passage 313 may accumulate on the side of the relief valve body 40 facing the valve body assembly 30, specifically, the medium flowing through the relief valve medium passage 4231 to the third medium passage 313 may accumulate at a downstream position in the relief valve medium passage 4231, and the accumulated medium may apply a pushing force to the relief valve body 40 to move the relief valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201, so that the medium accumulated in the first medium circulation space 35 flows through the opened first medium passage 201 or the first medium passage 201 of increased opening degree.

The arrangement can enable the shock absorber 100 to have three different working states in the process that the valve body assembly 200 moves towards the restoring space 112 along the first direction of the shock absorber 100 when the electromagnetic assembly 50 works, and the damping of the shock absorber 100 is gradually decreased along with the change of the three different working states, so that a vehicle applying the shock absorber 100 provided by the application has good shock absorption effect, and the riding experience of passengers is improved.

In some embodiments of the present application, as shown in fig. 1-6, the outside of the valve body assembly 30 may be provided with a seal 36, and the seal 36 may be sealingly disposed between the outside wall of the valve body assembly 30 and the inside wall of the receiving space 11.

In some embodiments of the present application, as shown in fig. 7-11, 22-25, the relief valve medium passage 4231 may include a first relief valve passage 421 and a second relief valve passage 422, wherein the first relief valve passage 421 may be in communication with the first medium circulation space 35, the second relief valve passage 422 may be in communication with the second medium passage 312, and the first relief valve passage 421 may be selectively in communication with the second relief valve passage 422.

The second relief valve passage 422 may communicate with the sixth sub-medium passage 3123 in the second medium passage 312 through the second communication hole 3413 and the third medium passage 313.

During operation of solenoid assembly 50 and during movement of valve body assembly 200 in the first direction of shock absorber 100 toward rebound space 112, a substantial amount of medium accumulates in first medium flow space 35. At this time, since the first medium circulation space 35 communicates with the first relief valve passage 421, the medium flowing into the first medium circulation space 35 can flow into the first relief valve passage 421, and when the medium pressure in the first relief valve passage 421 increases, the first relief valve passage 421 communicates with the second relief valve passage 422, the medium in the first relief valve passage 421 can flow into the second relief valve passage 422, and since the second relief valve passage 422 communicates with the second medium passage 312, the medium flowing into the second relief valve passage 422 can flow into the second medium passage 312 to flow into the compression space 111, specifically, the medium flowing into the second relief valve passage 422 can flow into the sixth sub-medium passage 3123 in the second medium passage 312 through the second communication hole 3413 and the third medium passage 313 in order to flow into the compression space 111.

By providing the first relief valve passage 421 and the second relief valve passage 422 in selective communication, the first relief valve passage 421 and the second relief valve passage 422 can be communicated only when the medium pressure in the first relief valve passage 421 and the first medium circulation space 35 reaches a certain amount, so that the damping of the shock absorber 100 can be reduced along with the accumulation of the medium when the electromagnetic assembly 50 works and the valve body assembly 200 moves towards the restoring space 112 along the first direction of the shock absorber 100, and a vehicle using the shock absorber 100 provided by the application can have a good damping effect, thereby being beneficial to improving the riding experience of passengers.

In some embodiments of the present application, as shown in fig. 7-11, the valve body assembly 200 may further include a pilot valve 70, the relief valve medium passage 4231 may further include a first medium communication port 423, the first medium communication port 423 may communicate the first relief valve passage 421 and the second relief valve passage 422, and an end of the pilot valve 70 near the relief valve body 40 may be adapted to block the first medium communication port 423.

As some alternative embodiments of the present application, the pilot valve 70 may be located on a side of the relief valve body 40 remote from the valve body assembly 30, and an end of the pilot valve 70 near the relief valve body 40 may block the first medium communication port 423 to block the first relief valve passage 421 and the second relief valve passage 422.

As some alternative embodiments of the present application, at least a portion of the end of the pilot valve 70 that blocks the first medium communication port 423 may be configured as a spherical surface.

As some alternative embodiments of the present application, an end of the pilot valve 70 away from the overflow valve 40 may abut against a moving magnetic element (i.e. the second magnetic element described above), and after the electromagnetic assembly 50 is energized, the second magnetic element moves toward the first magnetic element due to the fixed first magnetic element relative to the second magnetic element, and the second magnetic element moves to move the pilot valve 70, so as to drive the overflow valve 40 to move close to the valve assembly 30.

It should be noted that the medium in the first relief valve passage 421 can push the pilot valve 70 to move the pilot valve 70 away from the relief valve body 40 (or in a direction away from the valve body assembly 30), so that the first relief valve passage 421 and the second relief valve passage 422 can be communicated, thereby achieving selective communication between the first relief valve passage 421 and the second relief valve passage 422.

Specifically, during operation of solenoid assembly 50 and during movement of valve body assembly 200 in the first direction of shock absorber 100 toward rebound space 112, a substantial amount of medium accumulates in first medium flow space 35. The medium in the first medium flow space 35 can flow into the first relief valve passage 421, and when the pressure of the medium in the first relief valve passage 421 increases, the medium in the first relief valve passage 421 can push the pilot valve 70 to move the pilot valve 70 away from the relief valve body 40 so that the first medium communication port 423 communicates the first relief valve passage 421 and the second relief valve passage 422, the first relief valve passage 421 communicates with the second relief valve passage 422, the medium in the first relief valve passage 421 can flow into the second relief valve passage 422, and the medium flowing into the second relief valve passage 422 can flow into the second medium passage 312 to flow into the compression space 111.

By providing the pilot valve 70 and allowing the pilot valve 70 to block the first medium communication port 423, selective communication between the first relief valve passage 421 and the second relief valve passage 422 can be achieved. In addition, the condition that the first relief valve passage 421 and the second relief valve passage 422 are communicated is that the medium in the first relief valve passage 421 can push the pilot valve 70 to move, so that when the electromagnetic assembly 50 works and the valve body assembly 200 moves towards the restoring space 112 along the first direction of the shock absorber 100, the damping of the shock absorber 100 is reduced along with the accumulation of the medium, and the shock absorber 100 provided by the application has good damping effect, thereby being beneficial to improving riding experience of passengers.

In some embodiments of the present application, as shown in fig. 7-11, 22-25, the first relief valve passage 421 may include a first sub relief valve passage 4211, a second sub relief valve passage 4212, a third sub relief valve passage 4213, wherein the second sub relief valve passage 4212 may be in communication between the first sub relief valve passage 4211 and the third sub relief valve passage 4213.

The first sub relief valve passage 4211 may communicate with the first medium circulation space 35, and the third sub relief valve passage 4213 is adapted to communicate with the second relief valve passage 422, specifically, the third sub relief valve passage 4213 may communicate with the second relief valve passage 422 through the first medium communication port 423.

During operation of solenoid assembly 50 and during movement of valve body assembly 200 in the first direction of shock absorber 100 toward rebound space 112, a substantial amount of medium accumulates in first medium flow space 35. The medium of the first medium circulation space 35 can flow into the first sub relief valve passage 4211, the second sub relief valve passage 4212, and the third sub relief valve passage 4213 in this order, and the medium in the third sub relief valve passage 4213 can push the pilot valve 70 so as to move the pilot valve 70 away from the relief valve body 40, so that the first medium communication port 423 communicates with the first relief valve passage 421 and the second relief valve passage 422, specifically so that the first medium communication port 423 communicates with the third sub relief valve passage 4213 and the second relief valve passage 422 of the first relief valve passage 421.

At least two of the first, second, and third sub relief valve passages 4211, 4212, and 4213 have an angle therebetween. That is, the first, second, and third sub relief valve passages 4211, 4212, and 4213 are not all parallel to each other, in other words, the first, second, and third sub relief valve passages 4211, 4212, and 4213 are crisscrossed.

As some alternative embodiments of the present application, the first and second sub relief valve passages 4211, 4212 may each extend in a first direction (i.e., the X direction shown in fig. 1), and the third sub relief valve passage 4213 may extend in a second direction (i.e., the Y direction shown in fig. 1).

By constructing the first relief valve passage 421 as three sub-passages and making the three sub-passages be in a criss-cross structural form, the structural form of the first relief valve passage 421 can be reasonable, which is beneficial to fully utilizing the internal space of the relief valve body 40, thereby reducing the volume of the relief valve body 40, saving the production cost, saving the internal space of the shock absorber 100, and reducing the difficulty in arranging other parts of the shock absorber 100.

In some embodiments of the present application, as shown in fig. 24, the second sub relief valve passage 4212 may extend through the relief valve body 40 in a second direction of the shock absorber 100 (i.e., the Y direction shown in fig. 1), wherein the second direction is perpendicular to the first direction. By configuring the second sub relief valve passage 4212 to penetrate the relief valve body 40 in the second direction of the shock absorber 100, the difficulty in configuring the second sub relief valve passage 4212 can be reduced, so that the difficulty in producing the relief valve body 40 can be reduced, and the production efficiency of the relief valve body 40 can be improved.

In some embodiments of the present application, as shown in fig. 7-11, 22-25, the relief valve body 40 may have a relief valve flange 43 extending toward the mating valve 60, and the relief valve flange 43 may define a second medium flow space 44 with the mating valve 60, wherein the second medium flow space 44 may be in communication with the first relief valve passage 421 and the second relief valve passage 422.

Specifically, the inner side of the relief valve flange 43 may define a second medium circulation space 44 together with the mating valve 60, and the second medium circulation space 44 may communicate between the first medium communication port 423 and the second relief valve passage 422.

During operation of solenoid assembly 50 and during movement of valve body assembly 200 in the first direction of shock absorber 100 toward rebound space 112, a substantial amount of medium accumulates in first medium flow space 35. The medium in the first medium circulation space 35 can flow into the first sub-relief valve passage 4211, the second sub-relief valve passage 4212, and the third sub-relief valve passage 4213 in this order, and the medium in the third sub-relief valve passage 4213 can push the pilot valve 70 so that the pilot valve 70 is directed away from the relief valve body 40 to open the first medium communication port 423, and then the medium in the third sub-relief valve passage 4213 can flow into the second medium circulation space 44 through the first medium communication port 423, and the medium flowing into the second medium circulation space 44 can flow into the second relief valve passage 422.

The arrangement allows the first relief valve passage 421 and the second relief valve passage 422 to communicate with each other through the second medium circulation space 44, and the passage structure of the relief valve body 40 can be made reasonable.

As some alternative embodiments of the present application, as shown in fig. 9, the relief valve flange 43 may be disposed outside the mating valve first flange 61, and a first communication passage may be defined between the relief valve flange 43 and the inner wall of the mating valve 60, and medium may flow from the first sub relief valve passage 4211 into the first communication passage and then from the first communication passage into the second sub relief valve passage 4212, that is, the first communication passage communicates between the second sub relief valve passage 4212 and the first sub relief valve passage 4211.

As some alternative embodiments of the present application, the relief valve medium passage 42 may include a second communication passage that may be provided to extend in the first direction, and the second communication passage may be communicated between the second sub relief valve passage 4212 and the first communication passage, specifically, the medium may flow from the first sub relief valve passage 4211 into the first communication passage, then flow from the first communication passage into the second communication passage, and then flow from the second communication passage into the second sub relief valve passage 4212. It is to be explained that when the axial thickness (first-direction thickness) of the relief valve body 40 is large, a second communication passage may be provided so as to achieve communication of the second sub relief valve passage 4212 and the first sub relief valve passage 4211.

In some embodiments of the application, as shown in fig. 7-11, the mating valve 60 may have a mating valve first flange 61 extending toward the relief valve body 40, the mating valve first flange 61 and the relief valve flange 43 being co-configured as at least part of the side wall of the second medium flow space 44. Wherein, overflow valve turn-ups 43 and the first turn-ups 61 of the mating valve may both be annular turn-ups, overflow valve turn-ups 43 may be located inside the first turn-ups 61 of the mating valve, or overflow valve turn-ups 43 may be located outside the first turn-ups 61 of the mating valve, and the first turn-ups 61 of the mating valve and the turn-ups 43 of the overflow valve may be guided to cooperate.

By configuring the mating valve first flange 61 and the relief valve flange 43 together as at least part of the side wall of the second medium circulation space 44, the space between the relief valve body 40 and the mating valve 60 can be utilized to communicate the first relief valve passage 421 and the second relief valve passage 422, the design of the relief valve body 40 can be made compact, and the difficulty in designing and manufacturing the passage of the relief valve body 40 can be reduced.

In some embodiments of the present application, as shown in fig. 9, 22-24, the first sub relief valve passage 4211 may be provided at an outer sidewall of the relief valve body 40. The outer side wall of the relief valve body 40 may be in guiding engagement with the inner side wall of the engagement valve 60, and by providing the first sub relief valve passage 4211 on the outer side wall of the relief valve body 40, a part of the side wall of the first sub relief valve passage 4211 may be constituted by the relief valve body 40, and the other part of the side wall of the first sub relief valve passage 4211 may be constituted by the inner side wall of the engagement valve 60, the arrangement may be such that the installation position of the first sub relief valve passage 4211 is reasonable, and the medium in the first medium circulation space 35 may smoothly flow into the first relief valve passage 421.

In some embodiments of the present application, as shown in fig. 7-11, 22-24, the second relief valve passage 422 may include: a fourth sub relief valve passage 4221 and a fifth sub relief valve passage 4222 communicating with each other, the fourth sub relief valve passage 4221 being adapted to communicate with the first relief valve passage 421, the fifth sub relief valve passage 4222 being communicable with the second medium passage 312, and a flow area of the fifth sub relief valve passage 4222 being larger than a flow area of the fourth sub relief valve passage 4221.

Wherein the fourth sub relief valve passage 4221 may communicate with the third sub relief valve passage 4213 of the first relief valve passage 421 through the first medium communication port 423, the fifth sub relief valve passage 4222 may communicate between the fourth sub relief valve passage 4221 and the second medium passage 312, and the fifth sub relief valve passage 4222 may communicate with the third medium passage 313 through the second communication hole 3413 provided on the top wall of the valve cap 34 to communicate with the sixth sub medium passage 3123 of the second medium passage 312.

During operation of solenoid assembly 50 and during movement of valve body assembly 200 in the first direction of shock absorber 100 toward rebound space 112, a substantial amount of medium accumulates in first medium flow space 35. The medium of the first medium circulation space 35 can flow into the first sub relief valve passage 4211, the second sub relief valve passage 4212, and the third sub relief valve passage 4213 in this order, and the medium in the third sub relief valve passage 4213 can push the pilot valve 70 so that the pilot valve 70 is directed away from the relief valve body 40 to flow into the second medium circulation space 44 through the first medium communication port 423, and then the medium can flow into the fourth sub relief valve passage 4221, the fifth sub relief valve passage 4222 in this order from the second medium circulation space 44, and then flow into the compression space 111 through the second medium passage 312.

Since the flow area of the fifth sub-relief valve passage 4222 is larger than the flow area of the fourth sub-relief valve passage 4221, the medium flowing from the first medium flow space 35 into the first relief valve passage 421 and the second relief valve passage 422 may accumulate in the fifth sub-relief valve passage 4222, and the medium accumulated in the fifth sub-relief valve passage 4222 may contact the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221, the medium accumulated in the fifth sub-relief valve passage 4222 may apply a thrust force toward the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221 to move the relief valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201, so that the medium accumulated in the first medium flow space 35 may flow through the opened first medium passage 201 or the first medium passage 201 of an increased opening degree.

By the aid of the arrangement, a vehicle with the shock absorber 100 provided by the application has a good shock absorbing effect, and riding experience of passengers is improved.

In some embodiments of the present application, as shown in fig. 5, 6 and 11, solenoid assembly 50 is adapted to drive spill valve body 40 toward valve body assembly 30 to decrease the opening of first media passage 201 or to close first media passage 201, and the media at fifth sub-spill valve passageway 4222 is adapted to drive spill valve body 40 away from valve body assembly 30 to increase the opening of first media passage 201 or to open first media passage 201.

Specifically, when electromagnetic assembly 50 is operated, electromagnetic assembly 50 is able to drive relief valve body 40 toward valve body assembly 30 so that the opening degree of first medium passage 201 is reduced or first medium passage 201 is closed, when electromagnetic assembly 50 is operated, and during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward return space 112, medium in return space 112 is able to flow into first medium circulation space 35 through fourth sub-medium passage 3121, fifth sub-medium passage 3122, part of the medium in first medium circulation space 35 is able to flow into third medium passage 313 through first communication hole 3412, part of the medium in first medium circulation space 35 is able to flow into first sub-relief valve passage 4211, second sub-relief valve passage 4212 and third sub-relief valve passage 4213 in order, and medium in third sub-relief valve passage 4213 is able to push pilot valve 70 so that pilot valve 70 is directed away from relief valve body 40 to flow into second medium circulation space 44 through first medium communication port 423, and then the medium may flow into fourth sub-relief valve passage 21, fifth sub-medium circulation space 4222 in order from second medium circulation space 44 and then flow into fourth medium circulation space 312 through first medium communication hole 3412, and part of medium circulation space 35 may flow into first medium circulation space 42111, and then flow into first medium circulation space 42111 and then may flow into compression medium passage 42111.

The medium flowing from the first medium circulation space 35 into the first relief valve passage 421 and the second relief valve passage 422 may accumulate in the fifth sub-relief valve passage 4222, and since the flow area of the fifth sub-relief valve passage 4222 is larger than that of the fourth sub-relief valve passage 4221, the medium accumulated in the fifth sub-relief valve passage 4222 may contact the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221, and the medium accumulated in the fifth sub-relief valve passage 4222 may apply a thrust force toward the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221 to move the relief valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 or increase the opening degree of the first medium passage 201, so that the medium accumulated in the first medium circulation space 35 may flow through the opened first medium passage 201 or the opened first medium passage 201.

As an embodiment of the present application, the operation of shock absorber 100 according to the present application will be described specifically by taking the form of electromagnetic assembly 50 in which first medium passage 201 is closed during operation.

The shock absorber 100 according to the present application has two modes of operation, one is that the electromagnetic assembly 50 is not in operation, and when the electromagnetic assembly 50 is not in operation, the first medium channel 201 is opened under the action of the first elastic member 41.

In the first operation mode, during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, and the medium in compression space 111 can flow into first medium circulation space 35 through first sub-medium passage 3111.

Then, a part of the medium in the first medium flow space 35 flows into the third medium passage 313 through the first communication hole 3412, and then flows into the second sub-medium passage 3112 and the third sub-medium passage 3113 from the third medium passage 313 in order to flow into the restoring space 112 from the third sub-medium passage 3113. The other part of the medium of the first medium circulation space 35 flows into the first medium passage 201, then flows into the third medium passage 313 through the second communication hole 3413 opened in the top wall of the valve cover 34, and then flows into the second sub-medium passage 3112, the third sub-medium passage 3113 from the third medium passage 313 in order to flow into the restoring space 112 from the third sub-medium passage 3113.

In the first operation mode, the volume of the restoring space 112 is reduced and the volume of the compression space 111 is increased during the movement of the valve body assembly 200 toward the restoring space 112 in the first direction of the shock absorber 100, and the medium in the restoring space 112 can flow into the first medium circulation space 35 through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. Then, a part of the medium of the first medium flow space 35 flows into the third medium passage 313 through the first communication hole 3412, and then flows into the sixth sub-medium passage 3123 from the third medium passage 313 to flow into the compression space 111 from the sixth sub-medium passage 3123. Another part of the medium of the first medium circulation space 35 flows into the first medium passage 201, then flows into the third medium passage 313 through the second communication hole 3413 opened in the top wall of the valve cover 34, and then flows into the sixth sub-medium passage 3123 from the third medium passage 313 to flow into the compression space 111 from the sixth sub-medium passage 3123.

In the second mode of operation, electromagnetic assembly 50 is in operation and first media path 201 is closed. Specifically, the solenoid assembly 50 operates, and a second magnetic member (which may be a magnetic core 80 described below) moves toward the mating valve 60, which moves the pilot valve 70 toward the mating valve 60, and the pilot valve 70 moves toward the mating valve 60 to push the relief valve body 40 to close the first medium passage 201.

In the second operation mode, during the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, the medium in compression space 111 can flow into first medium circulation space 35 through first sub-medium passage 3111, and since electromagnetic assembly 50 closes first medium passage 201, the medium in first medium circulation space 35 can flow into third medium passage 313 only through first communication hole 3412, and then flows into second sub-medium passage 3112 and third sub-medium passage 3113 from third medium passage 313 in order to flow into recovery space 112 from third sub-medium passage 3113. This is the Q1 stage shown in fig. 4.

At this time, the amount of the medium accumulated in the first medium circulation space 35 is larger than the amount of the medium flowing through the first medium circulation space 35, that is, a large amount of the medium is accumulated in the first medium circulation space 35, the medium accumulated in the first medium circulation space 35 applies a pushing force to the overflow valve body 40 to move the overflow valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201 so that the medium accumulated in the first medium circulation space 35 flows into the first medium passage 201, then flows into the third medium passage 313 through the second communication hole 3413 opened in the top wall of the valve cover 34, and then flows into the second sub-medium passage 3112, the third sub-medium passage 3113 from the third medium passage 313 in order to flow into the restoring space 112 from the third sub-medium passage 3113. This is the Q2 stage shown in fig. 6.

In the second operation mode, during the movement of the valve body assembly 200 toward the restoring space 112 in the first direction of the shock absorber 100, the volume of the restoring space 112 is reduced, the volume of the compressing space 111 is increased, the medium in the restoring space 112 may flow into the first medium circulation space 35 through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the medium of the first medium circulation space 35 flows into the third medium passage 313 through the first communication hole 3412 due to the closing of the first medium passage 201 by the electromagnetic assembly 50, and then flows into the sixth sub-medium passage 3123 from the third medium passage 313 to flow into the compressing space 111 from the sixth sub-medium passage 3123. This is the Q3 stage shown in fig. 7 and 8.

And, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 toward the restoring space 112, a large amount of medium accumulates in the first medium circulation space 35. The medium in the first medium circulation space 35 can flow into the first sub relief valve passage 4211, the second sub relief valve passage 4212 and the third sub relief valve passage 4213 in this order, and the medium in the third sub relief valve passage 4213 can push the pilot valve 70 so that the pilot valve 70 is directed away from the relief valve body 40 to open the first medium communication port 423, and then the medium in the third sub relief valve passage 4213 can flow into the second medium circulation space 44 through the first medium communication port 423, and the medium flowing into the second medium circulation space 44 can flow into the fourth sub relief valve passage 4221, the fifth sub relief valve passage 4222 in this order, and then flow into the third medium passage 313 through the second communication hole 3413 opened in the top wall of the valve cap 34, and then flow into the sixth sub medium passage 3123 from the third medium passage 313 to flow into the compression space 111 from the sixth sub medium passage 3123. This is the Q4 stage shown in fig. 9 and 10.

Further, the medium flowing from the first medium circulation space 35 into the first relief valve passage 421 and the second relief valve passage 422 may accumulate in the fifth sub-relief valve passage 4222, and since the flow area of the fifth sub-relief valve passage 4222 is larger than the flow area of the fourth sub-relief valve passage 4221, the medium accumulated in the fifth sub-relief valve passage 4222 may contact the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221, and the medium accumulated in the fifth sub-relief valve passage 4222 may apply a thrust force toward the bottom wall of the solid structure forming the fourth sub-relief valve passage 4221 to move the relief valve body 40 in a direction away from the valve body assembly 30 to open the first medium passage 201, and after the first medium passage 201 is opened, the medium of the first medium circulation space 35 may flow into the first medium passage 201, then flow into the third medium passage 313 through the second communication hole 3413 opened in the top wall of the valve cap 34, and then flow into the sixth sub-medium passage 3123 from the third medium passage 313 to flow into the compression space 111 from the sixth sub-medium passage 3123. This is the Q5 stage shown in fig. 11.

It should be noted that, in the actual use process, the Q2 stage may be instantaneously performed simultaneously with the Q1 stage, and the Q1 and Q2 stages do not necessarily have a significant time difference. Similarly, there is not necessarily a significant time difference between the three phases Q3, Q4, Q5. Moreover, the Q2 phase may be repeated in use for a very short period of time, and likewise Q4, Q5 may be repeated in use for a very short period of time.

Also, the Q4 and Q5 phases may exist simultaneously, or the Q4 phase may be shut down at the Q5 phase. In summary, how the multiple phases work alternately or simultaneously is closely related to the actual usage of the shock absorber.

In some embodiments of the present application, as shown in fig. 28, the middle position of the fitting valve 60 may have a first protrusion 62 protruding toward the inside, and the inner side wall of the first protrusion 62 may be fitted with the outer side wall of the relief valve body 40.

As some alternative embodiments of the present application, the outer sidewall of the overflow valve body 40 may be in guiding engagement with the inner sidewall of the first protrusion 62 to precisely move the overflow valve body 40, and the inner sidewall of the first protrusion 62 may also limit the overflow valve body 40 to avoid the overflow valve body 40 from moving in the second direction.

As some alternative embodiments of the present application, the outer side wall of the overflow valve body 40 may simultaneously sealingly cooperate with the inner side wall of the first boss 62 to reduce leakage of medium through the gap between the outer side wall of the overflow valve body 40 and the inner side wall of the first boss 62.

As an alternative embodiment of the present application, by varying the amount of protrusion of first boss 62 inwardly, the contact area of the medium in first medium flow space 35 with relief valve body 40 may be adjusted to vary the force required to open first medium passage 201 during movement of valve body assembly 200 in the first direction of shock absorber 100 toward recovery space 112 during operation of solenoid assembly 50.

In some embodiments of the present application, as shown in FIGS. 1-11 and 28, the end of the mating valve 60 proximate the valve body assembly 30 may be secured to the valve body assembly 30, and as some alternative embodiments of the present application, the end of the mating valve 60 proximate the valve body assembly 30 may be welded to the valve cover 34 of the valve body assembly 30. The mating valve 60 defines a mating valve receiving space 63, the open end of which may be oriented toward the valve body assembly 30, and portions of the structure of the valve body assembly 30 and the relief valve body 40 may each be positioned within the mating valve receiving space 63, and more particularly, portions of the structure of the valve cover 34 and the relief valve body 40 may each be positioned within the mating valve receiving space 63. The arrangement can lead the arrangement position of each part of the valve body assembly 200 to be reasonable, lead each part in the valve body assembly 200 to be compact, be beneficial to saving the internal space of the shock absorber 100 and be beneficial to reducing the whole volume of the shock absorber 100.

And, through making the end that the mating valve 60 is close to the valve body subassembly 30 can link firmly with the valve body subassembly 30, can link together mating valve 60 and valve body subassembly 30 fixedly to can make the motion of valve body subassembly 200 steady, reduce the probability that each spare part interferes when valve body subassembly 200 moves.

Furthermore, such an arrangement facilitates reducing the path length of the medium flow, facilitates increasing the corresponding rate of shock absorber 100, and improves the performance of shock absorber 100.

In some embodiments of the present application, as shown in fig. 7-11, 26-28, the top wall of the mating valve 60 may have a mating valve first flange 61 extending toward the relief valve body 40, and the relief valve body 40 may have a relief valve flange 43 extending toward the mating valve 60, the mating valve first flange 61 and the relief valve flange 43 together being configured as at least a portion of a side wall of the second medium circulation space 44. Wherein, overflow valve turn-ups 43 and the first turn-ups 61 of the mating valve may both be annular turn-ups, overflow valve turn-ups 43 may be located inside the first turn-ups 61 of the mating valve, or overflow valve turn-ups 43 may be located outside the first turn-ups 61 of the mating valve, and the first turn-ups 61 of the mating valve and the turn-ups 43 of the overflow valve may be guided to cooperate. It can be appreciated that the overflow valve body 40 can move along the first direction, and the movement direction of the overflow valve body 40 can be accurate by guiding and matching the first flange 61 of the matching valve with the flange 43 of the overflow valve, so that the probability that the overflow valve body 40 is blocked in the matching valve 60 is reduced, and the use reliability of the shock absorber 100 is improved.

As some alternative embodiments of the application, the mating valve first flange 61 is in sealing engagement with the relief valve flange 43 to reduce leakage of medium from the gap between the mating valve first flange 61 and the relief valve flange 43.

In some embodiments of the present application, as shown in fig. 26-28, the top wall of the mating valve 60 may have a first relief hole 64, the shock absorber 100 may further include a pilot valve 70, the pilot valve 70 may be disposed through the first relief hole 64, and an end of the pilot valve 70 near the relief valve body 40 is adapted to stop against the relief valve body 40.

The relief valve medium passage 4231 may further include a first medium communication port 423, and the first medium communication port 423 may communicate the first relief valve passage 421 and the second relief valve passage 422, and an end of the pilot valve 70 near the relief valve body 40 may abut against the relief valve body 40 and block the first medium communication port 423.

As some alternative embodiments of the present application, the end of the pilot valve 70 away from the overflow valve 40 may abut against a moving magnetic element (i.e. the second magnetic element described above is disposed on the side of the overflow valve 40 away from the valve body assembly 30), and after the electromagnetic assembly 50 is energized, the second magnetic element moves toward the first magnetic element due to the fact that the first magnetic element is fixed relative to the second magnetic element, and the second magnetic element moves to move the pilot valve 70, so that the overflow valve 40 can be driven to move close to the valve body assembly 30.

Because the overflow valve body 40 is arranged in the matching valve accommodating space 63, the pilot valve 70 can pass through the first avoiding hole 64 to be in contact with the overflow valve body 40 by arranging the first avoiding hole 64 on the top wall of the matching valve 60, so that the moving magnetic piece can be driven by the electromagnetic assembly 50 to move to drive the overflow valve body 40 to move, and the inner side wall of the first avoiding hole 64 can be in guide fit with the outer side wall of the pilot valve 70 to ensure that the moving direction of the pilot valve 70 is accurate.

In some embodiments of the present application, as shown in fig. 1-11 and 31-34, the valve body assembly 200 may further include: magnetic core 80, electromagnetic assembly 50 may define an electromagnetic receiving space 524, at least a portion of magnetic core 80 may be disposed within electromagnetic receiving space 524, pilot valve 70 may be positioned between overflow valve body 40 and magnetic core 80, and an end of pilot valve 70 proximate magnetic core 80 may be in abutting contact with magnetic core 80.

Wherein, after the electromagnetic assembly 50 is energized, the magnetic core 80 and the mating valve 60 can generate an attractive force to make the magnetic core 80 and the mating valve 60 move close to each other, as some alternative embodiments of the present application, the mating valve 60 is stationary relative to the magnetic core 80, so that after the electromagnetic assembly 50 is energized, the magnetic core 80 moves towards the mating valve 60, and because one end of the pilot valve 70 close to the magnetic core 80 is in contact with the magnetic core 80, the magnetic core 80 moves to drive the pilot valve 70 to move, thereby driving the overflow valve 40 to move close to the valve body assembly 30. The overflow valve body 40 can be driven to move by the electromagnetic assembly 50, so that the function of adjusting the opening of the first medium channel 201 can be realized, the damping of the shock absorber 100 provided by the application can be adjusted, and by arranging at least part of the magnetic core 80 in the electromagnetic accommodating space 524, each part in the valve body assembly 200 can be compact, thereby being beneficial to saving the internal space of the shock absorber 100 and reducing the whole volume of the shock absorber 100.

In some embodiments of the present application, both the mating valve 60 and the magnetic core 80 may be made of magnetic materials, and the electromagnetic assembly 50 may generate magnetic force to make the magnetic core 80 and the mating valve 60 generate attractive force, so that the magnetic core 80 moves toward the mating valve 60 to drive the overflow valve 40 to move close to the valve body assembly 30. The magnetic material may be, but is not limited to, steel 45, iron, etc. By constructing both the mating valve 60 and the magnetic core 80 as magnetic materials, when the electromagnetic assembly 50 is energized, magnetic lines of force can be generated so that the magnetic core 80 and the mating valve 60 attract each other to drive the overflow valve 40 to move closer to the valve assembly 30.

In some embodiments of the present application, as shown in fig. 1-6 and 31-34, the end of the magnetic core 80 near the mating valve 60 may be provided with a first groove 81, the valve body assembly 200 may further include a second elastic member 82, the second elastic member 82 may be disposed in the first groove 81, and the second elastic member 82 may be stopped between the bottom wall of the first groove 81 and the mating valve 60.

Wherein, the first groove 81 may be opened toward the mating valve 60, one end of the second elastic member 82 may be abutted against the bottom wall of the first groove 81, and the other end of the second elastic member 82 may be abutted against the top wall of the mating valve 60. As some alternative embodiments of the present application, the second elastic member 82 may be configured as a spring 322, the second elastic member 82 may be compressed between the bottom wall of the first recess 81 and the mating valve 60, the magnetic core 80 may move toward the mating valve 60 and compress the second elastic member 82 when the electromagnetic assembly 50 is energized, the magnetic core 80 may move to return toward a direction away from the mating valve 60 under the action of the second elastic member 82 when the electromagnetic assembly 50 is de-energized, and the movement of the magnetic core 80 may be smoothed by providing the second elastic member 82.

In some embodiments of the present application, as shown in fig. 1-6 and 31-34, the end of the magnetic core 80, which is remote from the mating valve 60, may be provided with a second recess 83, the valve body assembly 200 may further include a third elastic member 84, the third elastic member 84 may be disposed in the second recess 83, and the third elastic member 84 may be stopped between the bottom wall of the second recess 83 and the electromagnetic assembly 50 to suspend the magnetic core 80.

Wherein the second groove 83 may be opened in a direction away from the mating valve 60, one end of the third elastic member 84 may abut against the bottom wall of the second groove 83, the other end of the third elastic member 84 may abut against the electromagnetic assembly 50, as some alternative embodiments of the present application, the third elastic member 84 may be configured as a spring 322, the third elastic member 84 may be compressed between the bottom wall of the second groove 83 and the electromagnetic assembly 50, and the magnetic core 80 may be suspended, that is, the magnetic core 80 may be statically suspended, by the actions of the second elastic member 82 and the third elastic member 84, so that the arrangement form of the magnetic core 80 may be reasonable, whether the electromagnetic assembly 50 drives the magnetic core 80 to move toward the mating valve 60, or the medium drives the overflow valve body 40, and thus drives the pilot valve 70, the magnetic core 80 may not interfere with other components and hinder the movement, thereby improving the reliability of the use of the shock absorber 100.

In some embodiments of the present application, as shown in fig. 1-6 and 31-34, the magnetic core 80 may be provided with a first pressure balance path 85, and the first pressure balance path 85 may be communicated between the second groove 83 and the first groove 81. Wherein the first pressure balance path 85 may be provided as one or the first pressure balance path 85 may be provided as a plurality, for example, the first pressure balance path 85 may be provided as two, the first pressure balance path 85 may communicate the second groove 83 and the first groove 81, it is understood that when the magnetic core 80 moves in the first direction, the volumes of the first groove 81 and the second groove 83 may change, and that the shock absorber 100 may have a medium in both the first groove 81 and the second groove 83 during use. By providing the first pressure balance passage 85, the pressures in the first recess 81 and the second recess 83 can be balanced to smooth the movement of the magnetic core 80.

In some embodiments of the present application, as shown in fig. 26-28, the top wall of the mating valve 60 may be provided with a second pressure balancing passage 65, and the second pressure balancing passage 65 may be communicated between the first groove 81 and the second medium circulation space 44 defined by the mating valve 60 and the relief valve body 40. Wherein the second pressure balance passage 65 may be provided as one, or the second pressure balance passage 65 may be provided as a plurality, for example, the second pressure balance passage 65 may be provided as four, the second pressure balance passage 65 may communicate the first groove 81 and the second medium circulation space 44,

It will be appreciated that when the pilot valve 70 is moved in the first direction, the volumes of the first recess 81 and the second medium flow space 44 will change, and that the damper 100 will have medium in both the first recess 81 and the second medium flow space 44 during use. By providing the second pressure balance passage 65, the pressures in the first groove 81 and the second medium circulation space 44 can be balanced to smooth the movement of the pilot valve 70. In addition, the second medium circulation space 44, the first groove 81 and the second groove 83 are all mutually communicated, so that the whole shock absorber 100 works stably and reliably, and the use reliability of the shock absorber 100 is improved.

In some embodiments of the present application, as shown in fig. 26-28, portions of the second pressure balance passage 65 may be configured as portions of the first relief hole 64. In other words, a plane is set that is perpendicular to the first direction of the shock absorber 100, that is, a normal to the plane is parallel to the first direction of the shock absorber 100, and an orthographic projection of the second pressure balance passage 65 on the plane and an orthographic projection of the first escape hole 64 on the plane have partially overlapping areas. The arrangement can reduce the manufacturing difficulty of the second pressure balance passage 65 and the first avoiding hole 64, which is beneficial to reducing the technological process of manufacturing the matching valve 60 (specifically, the second pressure balance passage 65 and the first avoiding hole 64 can be formed through one process), and is beneficial to improving the manufacturing efficiency of the matching valve 60.

In some embodiments of the present application, as shown in fig. 1-6, 29-31, 33 and 34, a core guide post 86 extending toward the overflow valve body 40 may be provided in the first groove 81, and a pilot engagement groove 71 may be provided at an end of the pilot valve 70 near the core 80, and at least a portion of the core guide post 86 may be provided in the pilot engagement groove 71 and be in guide engagement with a sidewall of the pilot engagement groove 71.

Specifically, the open end of the pilot engagement groove 71 faces the magnetic core 80, and the pilot engagement groove 71 is sleeved on the outer side of the magnetic core guide post 86, as some alternative embodiments of the present application, the outer side wall of the magnetic core guide post 86 may be in clearance guide engagement with the inner side wall of the pilot engagement groove 71, so that the guide may be provided for the movement of the pilot valve 70 through the magnetic core guide post 86, so that the movement direction of the pilot valve 70 is accurate, so as to reduce the probability of the pilot valve 70 being jammed during the movement, and improve the reliability of the shock absorber 100 in use.

In some embodiments of the present application, as shown in fig. 1-6, 29 and 30, the second elastic member 82 may be sleeved outside the magnetic core guiding post 86 or may be sleeved outside the pilot valve 70.

In other words, as some alternative embodiments of the present application, second elastic member 82 may be sleeved outside magnetic core guide post 86 and may be located inside pilot engagement groove 71, and as some alternative embodiments of the present application, second elastic member 82 may be sleeved outside pilot valve 70 and may be located outside pilot engagement groove 71. The second elastic member 82 has a plurality of setting positions, which is beneficial to reducing the assembly difficulty of the valve body assembly 200 and improving the assembly efficiency of the valve body assembly 200.

As some alternative embodiments of the present application, the second elastic member 82 may be sleeved outside the pilot valve 70 and may be located outside the pilot matching groove 71, so as to facilitate increasing the matching area between the inner sidewall of the pilot matching valve 60 and the outer sidewall of the magnetic core guiding post 86, which is beneficial to improving the accuracy of the movement direction of the pilot valve 70.

In some embodiments of the present application, as shown in fig. 26-28, the mating valve 60 may have a mating valve second flange 66 extending toward the magnetic core 80, and in particular, the top wall of the mating valve 60 may have a mating valve second flange 66 extending toward the magnetic core 80, with the outer side wall of the magnetic core 80 being adapted to be in guided engagement with the inner side wall of the mating valve second flange 66. As some alternative embodiments of the present application, the first groove 81 of the magnetic core 80 may be sleeved on the outer side of the second flange 66 of the matching valve, and the inner side wall of the first groove 81 may be in guiding fit with the outer side wall of the second flange 66 of the matching valve.

As some alternative embodiments of the present application, a portion of the structure of the magnetic core 80 may be located inside the second flange 66 of the mating valve, the outer side wall of the magnetic core 80 may be in guiding engagement with the inner side wall of the second flange 66 of the mating valve, and the outer side wall of the magnetic core 80 may be in guiding engagement with the inner side wall of the second flange 66 of the mating valve. By the arrangement, the movement direction of the magnetic core 80 can be accurate, the probability of the magnetic core 80 being clamped can be reduced, and the use reliability of the shock absorber 100 can be improved.

In some embodiments of the present application, as shown in fig. 1-6, 35 and 36, the valve body assembly 200 may further include: magnetism insulator 90, magnetism insulator 90 may be located between mating valve 60 and electromagnetic assembly 50. The material of the magnetic isolation member 90 may be any magnetic isolation material, and the magnetic isolation member 90 is not magnetized, which is not limited in the present application.

By providing the magnetism insulator 90, positioning can be provided for the mating valve 60 and the electromagnetic assembly 50 to make the mounting positions of the mating valve 60 and the electromagnetic assembly 50 accurate, and by providing the magnetism insulator 90, most of magnetic force lines generated by the electromagnetic assembly 50 can be applied to the magnetic core 80 to make the magnetic core 80 and the mating valve 60 generate attractive force, so that the effect of driving the magnetic core 80 to move towards the valve body assembly 30 by the electromagnetic assembly 50 can be reliably achieved.

In some embodiments of the present application, as shown in fig. 1-6, 35 and 36, a first mating groove 93 may be provided on a side of the magnetic shield 90 adjacent to the mating valve 60, and the mating valve second flange 66 may be provided in the first mating groove 93. The first fitting groove 93 is open toward the fitting valve 60.

As some alternative embodiments of the present application, a portion of the mating valve second flange 66 may be disposed within the first mating groove 93, or the entire structure of the mating valve second flange 66 may be disposed within the first mating groove 93, and the mating valve second flange 66 and the first mating groove 93 may be sealingly mated. Through setting up cooperation valve second turn-ups 66 in first cooperation groove 93, can be through cooperation valve second turn-ups 66 and first cooperation groove 93 to separate magnetism spare 90 and cooperation valve 60 and fix a position to make separate magnetism spare 90 and cooperation valve 60's location accurate, set up like this and be favorable to reducing the assembly degree of difficulty of shock absorber 100, be favorable to improving the assembly efficiency of shock absorber 100.

In some embodiments of the present application, as shown in fig. 1-6, 35, and 36, a side of the magnetic shield 90 adjacent to the electromagnetic assembly 50 may be provided with a second mating groove 94, and a portion of the electromagnetic assembly 50 may be provided with the second mating groove 94. The second mating groove 94 opens in a direction away from the mating valve 60.

As some alternative embodiments of the present application, the electromagnetic assembly 50 may include a core cover 52, the core cover 52 may be sleeved outside the magnetic core 80, and an end of the core cover 52 near the magnetism insulator 90 may be disposed in the second mating groove 94, as some alternative embodiments of the present application, an end of the core cover 52 near the magnetism insulator 90 may be disposed with a boss structure 521, and the boss structure 521 may be disposed in the second mating groove 94 and abut against the second mating groove 94, and an outer sidewall of the boss structure 521 may be in interference fit with an inner sidewall of the second mating groove 94 to prevent leakage. The electromagnetic assembly 50 can be positioned through the magnetism isolating piece 90, so that the magnetism isolating piece 90 and the electromagnetic assembly 50 are positioned accurately, the assembly difficulty of the shock absorber 100 is reduced, and the assembly efficiency of the shock absorber 100 is improved.

In some embodiments of the present application, as shown in fig. 1-6, 35 and 36, the magnetic shield 90 may have a second relief hole 95, and the magnetic core 80 may be disposed through the second relief hole 95. It should be noted that, through setting up the second on magnetism isolating part 90 and dodging hole 95, can dodge magnetic core 80 to make the magnetic core 80 be close to the tip of cooperation valve 60 and can be located cooperation valve second turn-ups 66, and the lateral wall of magnetic core 80 can dodge the inside wall direction cooperation of hole 95 with the second, so the accuracy of magnetic core 80 direction of motion can be further guaranteed in the setting.

As some alternative embodiments of the present application, the inner side wall of the second avoidance hole 95 is coplanar with the inner side wall of the second flange 66 of the matching valve, so that the probability of interference with other components during the movement of the magnetic core 80 can be reduced, which is beneficial to improving the working reliability of the shock absorber 100.

In some embodiments of the present application, as shown in fig. 1-6, 43, 44, 47 and 48, electromagnetic assembly 50 may further include: the magnetic core cover 52, the magnetic core cover 52 may define an electromagnetic accommodating space 524, at least a portion of the magnetic core 80 may be disposed in the electromagnetic accommodating space 524, and an outer sidewall of the magnetic core 80 may be adapted to be in guiding engagement with an inner sidewall of the magnetic core cover 52. As some alternative embodiments of the present application, the material of the core cover 52 may be a material capable of conducting magnetic force lines, such as iron, that is, the core cover 52 may be configured as a core cover.

By disposing at least part of the magnetic core 80 in the electromagnetic accommodation space 524 and guiding and fitting the outer side wall of the magnetic core 80 with the inner side wall of the core cover 52, accuracy of the movement direction of the magnetic core 80 can be further ensured. When the electromagnetic assembly 50 is energized, magnetic force lines generated by the electromagnetic assembly 50 can be conducted through the magnetic core cover 52 to form a strong magnetic force and act on the magnetic core 80, so that attractive force is generated between the magnetic core 80 and the matching valve 60, and the effect of driving the magnetic core 80 to move towards the valve body assembly 30 through the electromagnetic assembly 50 can be reliably achieved.

In some embodiments of the present application, as shown in fig. 1 to 6, 43, 44, 47 and 48, an end of the core cover 52 remote from the fitting valve 60 may have a second protruding portion 523 protruding toward the inside, and an end of the core 80 remote from the fitting valve 60 may have a first recessed portion 87 recessed toward the inside, wherein a sidewall of the first recessed portion 87 may be fitted with a sidewall of the second protruding portion 523.

It should be noted that, the inner side wall of the end of the magnetic core cover 52 near the mating valve 60 may be in guiding fit with the outer side wall of the end of the magnetic core 80 near the mating valve 60, the end of the magnetic core cover 52 far away from the mating valve 60 may have a second protruding portion 523 protruding toward the inner side, the end of the magnetic core 80 far away from the mating valve 60 may have a first recessed portion 87 recessed toward the inner side, the side wall of the second protruding portion 523 and the side wall of the first recessed portion 87 may be in clearance fit, one end of the third elastic member 84 may abut against the bottom wall of the second groove 83, and the other end of the third elastic member 84 may abut against the top wall of the magnetic core cover 52. The magnetic core cover 52 and the magnetic core 80 can be reasonably matched, the accuracy of the movement direction of the magnetic core 80 can be further guaranteed, the probability of clamping the magnetic core 80 can be further reduced, the movement stability of the magnetic core 80 can be guaranteed, and the use reliability of the shock absorber 100 can be improved.

In some embodiments of the present application, as shown in fig. 1-6, 38, 39, 46-48, the electromagnetic assembly 50 may further include a coil holder 53, wherein the coil of the electromagnetic assembly 50 may be wound around the coil holder 53, the coil holder 53 may have a holder space 531 opened toward the mating valve 60, and at least a portion of the core cover 52 may be disposed in the holder space 531.

Wherein, coil support 53 can be sleeved outside magnetic core cover 52 to, and the coil of electromagnetic assembly 50 can be around setting up the outside of coil support 53, through setting up coil support 53, can provide the mounted position for the coil of electromagnetic assembly 50, and can provide the mounted position for magnetic core cover 52. As some alternative embodiments of the present application, the top wall of the core housing 52 may be provided with a second boss 522 protruding in a direction away from the core 80 in the first direction, and the second boss 522 may be used to position the coil support 53. As some alternative embodiments of the present application, the coil support 53 may be provided with a space to be engaged with the second boss 522, and the space to be engaged with the second boss 522 may be communicated with the support space 531, with which the second boss 522 is engaged, and the second boss 522 can be used to position the coil support 53.

In some embodiments of the present application, as shown in fig. 38, 39, and 46-48, the coil support 53 may have a wire slot 532 for placing a coil, the electromagnetic assembly 50 may further include a support cover 54, the support cover 54 may be disposed on a side of the coil support 53 remote from the mating valve 60 and connected to the coil support 53, and the support cover 54 may cover at least a portion of the wire slot 532.

Wherein the coil of the electromagnetic assembly 50 may be wound outside the coil holder 53, and a portion of the coil may be placed in the wire slot 532, the holder cover 54 may be disposed on a side of the coil holder 53 away from the mating valve 60 in the first direction, and the holder cover 54 may be connected to the coil holder 53, as some alternative embodiments of the present application, the holder cover 54 may be connected to the coil holder 53 by means of a snap-fit connection, and the holder cover 54 may cover at least a portion of the wire slot 532. By providing the wire slot 532 for placing the coil on the coil holder 53, a part of the coil can be accommodated in the wire slot 532, the arrangement of the coil can be made neat, and by covering at least a part of the wire slot 532 with the holder cover 54, protection can be provided for the coil accommodated in the wire slot 532, so that the use reliability of the electromagnetic assembly 50 can be improved.

As some alternative embodiments of the present application, as shown in fig. 38, 39, and 46-48, the coil support 53 may include a support body 534 and an extension 535, each of the support body 534 and the extension 535 may have a wire slot 532, the support cover 54 may be shaped to fit the shape of the extension 535, and the support cover 54 may cover at least a portion of the wire slot 532 of the extension 535 and at least a portion of the wire slot 532 of the support body 534.

In some embodiments of the present application, as shown in fig. 38-41 and 46-48, the coil holder 53 may have a mounting post 533 extending in a first direction, in particular, the coil holder 53 may have a mounting post 533 extending in the first direction and toward a direction away from the valve body assembly 30, the mounting post 533 may have a wire groove 532, the holder cover 54 may have a fitting portion 541, the fitting portion 541 may be sleeved outside the mounting post 533, the fitting portion 541 may shield at least a portion of the wire groove 532 of the mounting post 533, and the fitting portion 541 may have a first notch 5411, the fitting portion 541 may be easily sleeved outside the mounting post 533 by providing the first notch 5411, and a portion of the coil may be located at the first notch 5411.

As some alternative embodiments of the present application, the coil support 53 may have two slots 532, and both ends of the coil may be placed through the two slots 532 of the coil support 53 and pass through the first notch 5411, respectively.

The coil can be conveniently arranged by the arrangement, so that the assembly difficulty of the coil assembly is reduced, and the assembly efficiency of the coil assembly is improved.

In some embodiments of the present application, as shown in fig. 1-6 and 44-48, the electromagnetic assembly 50 may further include a metal cap 55, the metal cap 55 may be disposed on a side of the coil support 53 remote from the mating valve 60, the metal cap 55 may have a second notch 551, at least a portion of the support cover 54 may be located in the second notch 551, and the metal cap 55 may be in contact with the core cover 52.

Specifically, the metal cap 55 may be disposed on a side of the coil support 53 remote from the mating valve 60 in the first direction, and the metal cap 55 may be configured in a circular ring-shaped structure having the second notch 551, that is, a circular ring-shaped structure in which a part of the structure is missing, in other words, a plane is set, which is perpendicular to the first direction, and an orthographic projection of the metal cap 55 on the plane is substantially "C" shaped. The coil support 53 may include an extension 535 having a wire slot 532, the extension 535 may be located at the second notch 551, as some alternative embodiments of the present application, the metal cap 55 may be generally "C" shaped, both ends of the "C" shaped notch may abut the extension 535, and the mounting post 533 of the coil support 53 may be threaded through the metal cap 55, and the metal cap 55 may be in contact with the core cover 52 in the first direction.

When the electromagnetic assembly 50 is powered on, magnetic force lines generated by the electromagnetic assembly 50 can be conducted through the magnetic core cover 52 and the metal cap 55 to form a strong magnetic force and act on the magnetic core 80, so that attractive force is generated between the magnetic core 80 and the matching valve 60, and the effect of driving the magnetic core 80 to move towards the valve body assembly 30 through the electromagnetic assembly 50 can be reliably achieved. By providing the metal cap 55 and bringing the metal cap 55 into contact with the core cover 52, the magnetic force lines generated by the electromagnetic assembly 50 can be enhanced, which is advantageous in increasing the attractive force between the magnetic core 80 and the mating valve 60.

It should be noted that the electromagnetic assembly 50 described in the present application is only an alternative form for realizing the function of driving the magnetic core 80, in other words, the shock absorber 100 provided by the present application may adopt electromagnetic assemblies 50 with different structural forms, as long as the electromagnetic assemblies 50 can realize the movement of the magnetic core 80 toward the mating valve 60.

In some embodiments of the present application, as shown in fig. 1-6 and 49, the valve body assembly 200 may further include a piston 20, the piston 20 may be fixedly connected with the mating valve 60, the piston 20 may define a mounting space 21, and at least part of the structure of the mating valve 60 and the electromagnetic assembly 50 may be disposed in the mounting space 21.

Wherein the piston 20 may define a mounting space 21 having one end opened, the mating valve 60 may be positioned at the opened end of the mounting space 21, and one end of the piston 20 adjacent to the mating valve 60 may be connected to the mating valve 60, specifically, the mating valve 60 may be positioned at the opened end of the mounting space 21 and close the mounting space 21.

As some alternative embodiments of the present application, as shown in fig. 28 and 49, the outer sidewall of the fitting valve 60 may have an external thread 67, the inner sidewall of the installation space 21 may have an internal thread 22 capable of being fitted with the external thread 67, and the internal thread 22 may be provided at the inner sidewall of the installation space 21 near one end of the fitting valve 60, the piston 20 may be fixedly coupled with the fitting valve 60 by the fitting of the external thread 67 and the internal thread 22, and a part of the structure of the fitting valve 60 may be located in the installation space 21, and the fitting valve 60 may close the open end of the installation space 21, and the electromagnetic assembly 50 and the magnetism blocking member 90 may be provided in the installation space 21.

As some alternative embodiments of the present application, as shown in fig. 1 to 6, a sealing ring 91 may be disposed between the magnetism isolating member 90 and the inner side wall of the installation space 21, and as some alternative embodiments of the present application, the side wall of the magnetism isolating member 90 may be provided with a sealing groove 92 recessed inward, and at least part of the sealing ring 91 may be disposed in the sealing groove 92.

As some alternative embodiments of the present application, the side of the metal cap 55 facing away from the core cover 52 may be in abutting contact with the inner wall surface of the plunger 20.

As some alternative embodiments of the present application, as shown in fig. 49, the piston 20 may have a mating hole 23, and the second boss 522 of the core cover 52 may be disposed in the mating hole 23 to achieve positioning.

As some alternative embodiments of the present application, the shock absorber 100 provided by the present application may be applied to a vehicle, when the vehicle jolts, the piston 20 is stressed and moves along the first direction, because the piston 20 is fixedly connected with the mating valve 60, the piston 20 moves to drive the mating valve 60 to move, and because the mating valve 60 is fixedly connected with the valve body assembly 30, the mating valve 60 moves to drive the valve body assembly 30 to move, and because the electromagnetic assembly 50 is disposed in the installation space 21, the piston 20 can drive the electromagnetic assembly 50 to move together when the piston 20 moves, so that the piston 20 can drive the valve body assembly 200 to move along the first direction, and by disposing the piston 20, the electromagnetic assembly 50, the mating valve 60, the valve body assembly 30 and the overflow valve body 40 can be connected as a whole, so that when the piston 20 moves, the valve body assembly 200 can synchronously move, which is beneficial to ensuring the working reliability of the shock absorber 100.

In some embodiments of the present application, as shown in fig. 1-6, the housing 10 may include a first housing 12 and a second housing 13, the second housing 13 may be sleeved outside the first housing 12, the first housing 12 may define a receiving space 11, and the second housing 13 and the first housing 12 together define a liquid storage space 14, in other words, there may be a liquid storage space 14 between the second housing 13 and the first housing 12.

As shown in fig. 1-6, shock absorber 100 may further include a valve base assembly 15, where valve base assembly 15 may be located on a side of valve body assembly 30 remote from relief valve body 40, and compression space 111 may be selectively in communication with fluid reservoir space 14 via valve base assembly 15. As some alternative embodiments of the present application, valve bottom assembly 15 may be located on a side of valve body assembly 30 remote from spill valve body 40 and connected to an end of first housing 12, and valve bottom assembly 15 may block an end of first housing 12.

During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward compression space 111, the volume of compression space 111 decreases, the volume of recovery space 112 increases, the medium in compression space 111 can flow into recovery space 112 through first medium passage 311, and the medium in compression space 111 can flow into liquid storage space 14 through valve base assembly 15.

During the movement of valve body assembly 200 in the first direction of shock absorber 100 toward recovery space 112, the volume of recovery space 112 decreases, the volume of compression space 111 increases, the medium in recovery space 112 can flow into compression space 111 through second medium passage 312, and the medium in reservoir space 14 can flow into compression space 111 through valve base assembly 15. Such an arrangement can make the shock absorber 100 configured as a dual-tube shock absorber 100, which is advantageous in improving the reliability of use of the shock absorber 100 and in stabilizing the operation of the shock absorber 100.

As some alternative embodiments of the present application, the valve body 33, the valve cap 34, the relief valve body 40, the mating valve 60, the magnetic core 80, the magnetic core cover 52, the magnetism insulator 90, and the coil bracket 53 may be constructed as a rotating body structure.

The shock absorber 100 provided by the application has the advantages of simple structure, convenience in manufacturing, low cost and easiness in adjustment, and meanwhile, the vehicle has a good shock absorbing effect under different road conditions.

According to the shock absorber 100 of the embodiment of the present utility model, the valve structure of the shock absorber 100 according to the embodiment of the present utility model includes that the valve structure and the valve body assembly 30 of the shock absorber 100 together define the first medium circulation space 35, and the overflow valve body 40 and the valve body assembly 30 form the first medium channel 201 therebetween, when the medium flowing into the first medium circulation space 35 through the medium channel 31 of the valve body assembly 30 accumulates to a certain amount, the medium in the first medium circulation space 35 can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening of the first medium channel 201, so that the damping of the shock absorber 100 is changed, and the use effect of the shock absorber 100 is improved.

According to the vehicle according to the embodiment of the utility model, the damper 100 of the embodiment includes the valve structure and the valve body assembly 30 of the damper 100 together define the first medium circulation space 35, and the overflow valve body 40 and the valve body assembly 30 form the first medium channel 201 therebetween, when the medium flowing into the first medium circulation space 35 through the medium channel 31 of the valve body assembly 30 accumulates to a certain amount, the medium in the first medium circulation space 35 can drive the overflow valve body 40 to move away from the valve body assembly 30 to adjust the opening of the first medium channel 201, so that the damping of the damper 100 is changed, and the use effect of the damper 100 is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The valve structure of the shock absorber is characterized in that the valve structure is suitable for limiting a first medium circulation space together with a valve body assembly of the shock absorber, the valve structure comprises an overflow valve body, the overflow valve body is suitable for forming a first medium channel with the valve body assembly, the first medium circulation space is suitable for being communicated with a medium channel of the valve body assembly, and a medium in the first medium circulation space is suitable for driving the overflow valve body to move away from the valve body assembly so as to adjust the opening degree of the first medium channel.

2. The valve structure of a shock absorber according to claim 1, further comprising: the overflow valve body is provided with an overflow valve guide column extending towards the valve body assembly, the overflow valve guide column is sleeved with the first elastic piece and is suitable for being abutted between the overflow valve body and the valve body assembly, and the first elastic piece is suitable for driving the overflow valve body to move away from the valve body assembly so as to open the first medium channel or increase the opening of the first medium channel.

3. The shock absorber valve structure of claim 1 wherein said relief valve body has a relief valve media passage and said first media flow space is adapted to communicate the media passage of said valve body assembly with said relief valve media passage.

4. A valve structure of a shock absorber according to claim 3, wherein said relief valve medium passage includes a first relief valve passage and a second relief valve passage, said first relief valve passage being in communication with said first medium flow space, said second relief valve passage being in communication with said medium passage, and said first relief valve passage being selectively in communication with said second relief valve passage.

5. The shock absorber valve structure according to claim 4, wherein said relief valve medium passage further comprises: the first medium communication port is communicated with the first overflow valve passage and the second overflow valve passage, and the end part, close to the overflow valve body, of the pilot valve of the shock absorber is suitable for blocking the first medium communication port.

6. The valve structure of the shock absorber according to claim 4, wherein said first relief valve passage comprises: the first medium circulation space is communicated with the first medium circulation space, the second medium circulation space is communicated with the second medium circulation space, the third medium circulation space is communicated with the second medium circulation space, and at least two of the first sub-overflow valve passage, the second sub-overflow valve passage and the third sub-overflow valve passage are provided with angles.

7. The valve structure of the shock absorber according to claim 6, wherein said second sub relief valve passage penetrates said relief valve body in a radial direction thereof.

8. The valve structure of a shock absorber according to claim 4, further comprising: the matching valve sleeve is arranged on the outer side of the overflow valve body and is suitable for being fixedly connected with the valve body assembly, and the matching valve, the valve body assembly and the overflow valve body jointly define a first medium circulation space.

9. The valve structure of the shock absorber according to claim 8, wherein said relief valve body has a relief valve flange extending toward said mating valve, said relief valve flange and said mating valve together defining a second medium flow space, said second medium flow space communicating with said first relief valve passage and said second relief valve passage.

10. The valve structure of a shock absorber according to claim 9, wherein said mating valve has a mating valve first flange extending toward said relief valve body, said mating valve first flange and said relief valve flange being cooperatively configured as at least a portion of a side wall of said second medium flow space, and said relief valve flange being adapted for guided mating with said mating valve first flange.

11. The valve structure of the shock absorber according to claim 6, wherein said first sub relief valve passage is provided in an outer side wall of said relief valve body.

12. The valve structure of the shock absorber according to claim 4, wherein said second relief valve passage comprises: a fourth sub-relief valve passage and a fifth sub-relief valve passage in communication with each other, the fourth sub-relief valve passage being adapted to communicate with the first relief valve passage, the fifth sub-relief valve passage being in communication with the medium passage, the fifth sub-relief valve passage having a flow area greater than a flow area of the fourth sub-relief valve passage.

13. The valve structure of the shock absorber of claim 12 wherein the medium at said fifth sub-relief valve passage is adapted to drive said relief valve body away from said valve body assembly to increase the opening of said first medium passage or to open said first medium passage.

14. A valve structure of a shock absorber according to any one of claims 8-10, wherein the middle position of the mating valve has a first protruding portion protruding toward the inner side, and an inner side wall of the first protruding portion is mated with an outer side wall of the overflow valve body.

15. A valve structure of a shock absorber according to any one of claims 8-10, wherein said mating valve is adapted to be fixedly connected to said valve body assembly near an end thereof, said mating valve defining a mating valve receiving space, and wherein said relief valve body and a portion of said valve body assembly are both located within said mating valve receiving space.

16. The valve structure of a shock absorber according to any one of claims 8-10, wherein a top wall of the mating valve has a first relief hole, a pilot valve of the shock absorber is adapted to be inserted through the first relief hole, and an end of the pilot valve, which is adjacent to the overflow valve body, is adapted to be stopped by the overflow valve body.

17. The shock absorber valve structure of claim 16, wherein said mating valve top wall is provided with a second pressure equalization passage extending through said mating valve top wall.

18. The valve structure of the shock absorber according to claim 17, wherein a portion of said second pressure balancing passage is configured as a portion of said first relief hole.

19. A valve structure of a shock absorber according to any of claims 8-10, wherein said mating valve has a mating valve second flange extending away from said relief valve body, an outer side wall of a magnetic core of said shock absorber being adapted to be guided into engagement with an inner side wall of said mating valve second flange.

20. The valve structure of the shock absorber according to claim 19, wherein said mating valve second flange is adapted to be disposed within a first mating groove of a magnetically isolated member of said shock absorber.

21. A shock absorber comprising a valve structure of a shock absorber according to any of claims 1-20.

22. A vehicle comprising a shock absorber according to claim 21.