Shock absorber and vehicle

Abstract

The invention discloses a shock absorber and a vehicle, the shock absorber comprises a shell, the shell defines a containing space, and a valve body assembly comprises a valve body assembly, an overflow valve body and an electromagnetic assembly; the valve body assembly divides the containing space into a compression space and a recovery space, the overflow valve body and the electromagnetic assembly are both located in the recovery space, and the overflow valve body is located between the electromagnetic assembly and the valve body assembly so that a first medium channel can be formed between the overflow valve body and the valve body assembly. The electromagnetic assembly is suitable for driving the overflow valve body to move close to the valve body assembly so as to adjust the opening degree of the first medium channel. The valve body assembly is provided with a medium channel, and the compression space communicates with the recovery space through the medium channel or communicates with the first medium channel through the medium channel. Therefore, according to the shock absorber, the overflow valve body can be driven to move according to actual requirements so as to adjust the opening degree of the first medium channel, so that the damping of the shock absorber can be adjusted according to the actual requirements, various road conditions can be met, and the riding experience of passengers can be improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and more particularly to a shock absorber and a vehicle having the shock absorber. Background Art

[0002] In the related art, the shock absorber of a vehicle can reduce the bumps during the driving of the vehicle to improve the riding experience of the occupants and enhance the riding comfort of the vehicle. However, the damping of the existing shock absorber is non-adjustable, resulting in poor shock absorption effect of the shock absorber.

[0003] For example, if the damping of the shock absorber is large (i.e., the shock absorber is hard), it will lead to a poor riding experience of the occupants when driving on a relatively flat road surface; if the damping of the shock absorber is small (i.e., the shock absorber is soft), it will lead to a poor riding experience of the occupants when driving on an uneven road surface. Therefore, there is an urgent need for a shock absorber that can meet various road conditions. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a shock absorber that can meet various road conditions and is beneficial to improving the riding experience of the occupants.

[0005] The present invention further provides a vehicle.

[0006] The shock absorber of the vehicle according to the present invention includes: a housing that defines an accommodation space therein, and a medium is provided in the accommodation space; a valve body assembly disposed in the accommodation space, the valve body assembly including a valve body component, an overflow valve body, and an electromagnetic component; the valve body component divides the accommodation space into a compression space and a restoration space, the overflow valve body and the electromagnetic component are both located in the restoration space, the overflow valve body is located between the electromagnetic component and the valve body component to form a first medium passage between the overflow valve body and the valve body component, and the electromagnetic component is adapted to drive the overflow valve body to move close to the valve body component to adjust the opening degree of the first medium passage; the valve body component has a medium passage, the compression space is selectively communicated with the restoration space through the medium passage, the valve body assembly is adapted to move in the housing along a first direction of the shock absorber to change the volumes of the compression space and the restoration space, when the volume of the compression space changes, the compression space is communicated with the restoration space through the medium passage, or is communicated with the restoration space through the medium passage and the first medium passage; the medium passage includes a first medium passage and a second medium passage, the medium in the compression space is adapted to flow into the restoration space through the first medium passage, and the medium in the restoration space is adapted to flow into the compression space through the second medium passage, wherein one-way valves are provided in both the first medium passage and the second medium passage.

[0007] The shock absorber of the vehicle according to the present invention can drive the overflow valve body to move according to actual needs to adjust the opening degree of the first medium passage, so that the damping of the shock absorber can be adjusted according to actual needs, which can meet various road conditions and is beneficial to improving the riding experience of passengers.

[0008] In some examples of the present invention, the medium is adapted to drive the overflow valve body to move away from the valve body assembly to adjust the opening degree of the first medium passage.

[0009] In some examples of the present invention, the first medium passage includes: a first sub-medium passage, a second sub-medium passage, and a third sub-medium passage. The second sub-medium passage is connected between the first sub-medium passage and the third sub-medium passage. The first medium passage is connected to the compression space, and the third sub-medium passage is connected to the recovery space. Both the first sub-medium passage and the third sub-medium passage are one-way passages.

[0010] In some examples of the present invention, check valves are provided in both the first sub-medium passage and the third sub-medium passage.

[0011] In some examples of the present invention, the third sub-medium passage is provided on the outer side wall of the valve body assembly.

[0012] In some examples of the present invention, the second medium passage includes: a fourth sub-medium passage, a fifth sub-medium passage, and a sixth sub-medium passage. The fifth sub-medium passage is connected between the fourth sub-medium passage and the sixth sub-medium passage. The fourth sub-medium passage is connected to the recovery space, and the sixth sub-medium passage is connected to the compression space. Both the fifth sub-medium passage and the sixth sub-medium passage are one-way passages.

[0013] In some examples of the present invention, check valves are provided in both the fifth sub-medium passage and the sixth sub-medium passage.

[0014] In some examples of the present invention, the fourth sub-medium passage is provided on the outer side wall of the valve body assembly, and a first communication passage is connected between the fourth sub-medium passage and the fifth sub-medium passage. The first communication passage has an angle with the fourth sub-medium passage and / or the fifth sub-medium passage.

[0015] In some examples of the present invention, the medium passage further includes: a third medium passage, which is connected between the first sub-medium passage and the second sub-medium passage, and is also connected between the fifth sub-medium passage and the sixth sub-medium passage.

[0016] In some examples of the present invention, the valve body assembly includes a valve body and a valve cover. The valve cover is located between the valve body and the overflow valve body and is fixedly provided on the valve body. Part of the first medium passage, part of the second medium passage, and part of the third medium passage are all provided in the valve body, and the other parts of the first medium passage, the other parts of the second medium passage, and the other parts of the third medium passage are all provided in the valve cover.

[0017] In some examples of the present invention, the valve cover has a first boss protruding towards the overflow valve body. The first boss is a hollow structure, and the hollow part of the first boss is configured as part of the third medium passage. At least one first communication hole is provided on the side wall of the first boss. The first communication hole communicates the first sub-medium passage and the third medium passage, and the first communication hole also communicates the fifth sub-medium passage and the third medium passage.

[0018] In some examples of the present invention, the valve body assembly further includes: a mating valve. The mating valve is sleeved outside the overflow valve body and is fixedly connected to the valve body assembly. The mating valve, the valve body assembly, and the overflow valve body jointly define a first medium flow space. The first sub-medium passage and the fifth sub-medium passage both penetrate the valve cover along the first direction. The first medium flow space communicates with the first communication hole and the first sub-medium passage, and the first medium flow space also communicates with the first communication hole and the fifth sub-medium passage.

[0019] In some examples of the present invention, the electromagnetic assembly is adapted to drive the overflow valve body towards the valve body assembly to reduce the opening degree of the first medium passage or close the first medium passage. The medium at the first medium flow space is adapted to drive the overflow valve body away from the valve body assembly to increase the opening degree of the first medium passage or open the first medium passage.

[0020] In some examples of the present invention, the top wall of the first boss has at least one second communication hole. The second communication hole communicates the third medium passage and the first medium passage.

[0021] In some examples of the present invention, the valve body assembly further includes: a first elastic member. The overflow valve body has an overflow valve guide post extending towards the valve body assembly. The first elastic member is sleeved on the overflow valve guide post and abuts between the overflow valve body and the valve body assembly. The first elastic member is adapted to drive the overflow valve body away from the valve body assembly to open the first medium passage or increase the opening degree of the first medium passage.

[0022] In some examples of the present invention, the valve body assembly further includes: a mating valve, the mating valve is sleeved outside the overflow valve body and fixedly connected to the valve body assembly, the mating valve, the valve body assembly and the overflow valve body jointly define a first medium flow space, the overflow valve body has an overflow valve medium passage, the first medium flow space communicates with the second medium passage and the overflow valve medium passage, and the overflow valve medium passage communicates with the second medium passage.

[0023] In some examples of the present invention, the overflow valve medium passage includes a first overflow valve passage and a second overflow valve passage, the first overflow valve passage communicates with the first medium flow space, the second overflow valve passage communicates with the second medium passage, and the first overflow valve passage is selectively communicated with the second overflow valve passage.

[0024] In some examples of the present invention, the valve body assembly further includes: a pilot valve, the overflow valve medium passage further includes: a first medium communication port, the first medium communication port communicates the first overflow valve passage and the second overflow valve passage, and an end of the pilot valve close to the overflow valve body is adapted to block the first medium communication port.

[0025] In some examples of the present invention, the first overflow valve passage includes: a first sub-overflow valve passage, a second sub-overflow valve passage, a third sub-overflow valve passage, the second sub-overflow valve passage is communicated between the first sub-overflow valve passage and the third sub-overflow valve passage, the first sub-overflow valve passage communicates with the first medium flow space, the third sub-overflow valve passage is adapted to communicate with the second overflow valve passage, wherein, at least two of the first sub-overflow valve passage, the second sub-overflow valve passage, and the third sub-overflow valve passage have an angle therebetween.

[0026] In some examples of the present invention, the second sub-overflow valve passage penetrates the overflow valve body along a second direction of the shock absorber, wherein the second direction is perpendicular to the first direction.

[0027] In some examples of the present invention, the overflow valve body has an overflow valve flange extending towards the mating valve, the overflow valve flange and the mating valve jointly define a second medium flow space, and the second medium flow space communicates with the first overflow valve passage and the second overflow valve passage.

[0028] In some examples of the present invention, the mating valve has a first mating valve flange extending towards the overflow valve body, and the first mating valve flange and the overflow valve flange jointly construct at least part of the side wall of the second medium flow space.

[0029] In some examples of the present invention, the first sub-overflow valve passage is arranged on the outer side wall of the overflow valve body.

[0030] In some examples of the present invention, the second overflow valve passage includes a fourth sub-overflow valve passage and a fifth sub-overflow valve passage that communicate with each other. The fourth sub-overflow valve passage is adapted to communicate with the first overflow valve passage, the fifth sub-overflow valve passage communicates with the second medium passage, and the flow area of the fifth sub-overflow valve passage is larger than that of the fourth sub-overflow valve passage.

[0031] In some examples of the present invention, the electromagnetic assembly is adapted to drive the overflow valve body towards the valve body assembly to reduce the opening degree of the first medium passage or close the first medium passage, and the medium at the fifth sub-overflow valve passage is adapted to drive the overflow valve body away from the valve body assembly to increase the opening degree of the first medium passage or open the first medium passage.

[0032] In some examples of the present invention, the middle position of the mating valve has a first convex portion protruding towards the inside, and the inner side wall of the first convex portion cooperates with the outer side wall of the overflow valve body.

[0033] In some examples of the present invention, the end of the mating valve close to the valve body assembly is fixedly connected to the valve body assembly. The mating valve defines a mating valve accommodation space, and part of the valve body assembly and the overflow valve body are both located in the mating valve accommodation space.

[0034] In some examples of the present invention, the top wall of the mating valve has a first flanging extending towards the overflow valve body, and the overflow valve body has an overflow valve flanging extending towards the mating valve. The overflow valve flanging is adapted to be in guiding cooperation with the first flanging of the mating valve.

[0035] In some examples of the present invention, the top wall of the mating valve has a first relief hole, and the shock absorber further includes a pilot valve. The pilot valve passes through the first relief hole and one end of the pilot valve close to the overflow valve body is adapted to abut against the overflow valve body.

[0036] In some examples of the present invention, the valve body assembly further includes a magnetic core. The electromagnetic assembly defines an electromagnetic accommodation space, at least part of the magnetic core is disposed in the electromagnetic accommodation space, the pilot valve is located between the overflow valve body and the magnetic core, and one end of the pilot valve close to the magnetic core abuts against the magnetic core.

[0037] In some examples of the present invention, both the mating valve and the magnetic core are made of magnetic materials. The electromagnetic assembly can generate a magnetic force to cause an attractive force between the magnetic core and the mating valve, so that the magnetic core moves towards the mating valve to drive the overflow valve body to move closer to the valve body assembly.

[0038] In some examples of the present invention, a first groove is provided at one end of the magnetic core close to the mating valve. The valve body assembly further includes a second elastic member, which is disposed in the first groove and abuts between the bottom wall of the first groove and the mating valve.

[0039] In some examples of the present invention, a second groove is provided at one end of the magnetic core away from the mating valve. The valve body assembly further includes a third elastic member, which is disposed in the second groove and abuts between the bottom wall of the second groove and the electromagnetic assembly to suspend the magnetic core.

[0040] In some examples of the present invention, the magnetic core is provided with a first pressure balance passage, which communicates between the second groove and the first groove.

[0041] In some examples of the present invention, a second pressure balance passage is provided on the top wall of the mating valve, which communicates between the first groove and the second medium flow space defined by the mating valve and the overflow valve body.

[0042] In some examples of the present invention, a part of the second pressure balance passage is configured as a part of the first avoidance hole.

[0043] In some examples of the present invention, a magnetic core guide post extending towards the overflow valve body is provided in the first groove. A pilot mating groove is provided at one end of the pilot valve close to the magnetic core. At least a part of the magnetic core guide post is disposed in the pilot mating groove and is in guiding cooperation with the side wall of the pilot mating groove.

[0044] In some examples of the present invention, the second elastic member is sleeved outside the magnetic core guide post or outside the pilot valve.

[0045] In some examples of the present invention, the mating valve has a second flanging extending towards the magnetic core, and the outer side wall of the magnetic core is adapted to be in guiding cooperation with the inner side wall of the second flanging of the mating valve.

[0046] In some examples of the present invention, the valve body assembly further includes: a magnetic isolation member, which is located between the mating valve and the electromagnetic assembly.

[0047] In some examples of the present invention, a first mating groove is provided on the side of the magnetic isolation member close to the mating valve, and the second flanging of the mating valve is disposed in the first mating groove.

[0048] In some examples of the present invention, a second mating groove is provided on the side of the magnetic isolation member close to the electromagnetic assembly, and a part of the electromagnetic assembly is disposed in the second mating groove.

[0049] In some examples of the present invention, the magnetic isolation member has a second avoidance hole, and the magnetic core passes through the second avoidance hole.

[0050] In some examples of the present invention, the electromagnetic assembly includes: a magnetic core cover that defines the electromagnetic accommodation space, and the outer sidewall of the magnetic core is adapted to be guidingly engaged with the inner sidewall of the magnetic core cover.

[0051] In some examples of the present invention, one end of the magnetic core cover away from the mating valve has a second convex portion protruding inward, and one end of the magnetic core away from the mating valve has a first concave portion recessed inward, and the sidewall of the first concave portion is engaged with the sidewall of the second convex portion.

[0052] In some examples of the present invention, the electromagnetic assembly further includes: a coil bracket around which the coil of the electromagnetic assembly is wound. The coil bracket has a bracket space that opens toward the mating valve, and at least a part of the magnetic core cover is disposed in the bracket space.

[0053] In some examples of the present invention, the coil bracket has a wire groove for placing the coil. The electromagnetic assembly further includes a bracket cover body that is disposed on a side of the coil bracket away from the mating valve and is connected to the coil bracket, and the bracket cover body covers at least a part of the wire groove.

[0054] In some examples of the present invention, the coil bracket has a mounting post extending in a first direction. The bracket cover body has a mating portion that is sleeved outside the mounting post, and the mating portion has a first notch, and a part of the coil is located in the first notch.

[0055] In some examples of the present invention, the electromagnetic assembly further includes: a metal cap that is disposed on a side of the coil bracket away from the mating valve, and the metal cap has a second notch, at least a part of the bracket cover body is located in the second notch, and the metal cap is in contact with the magnetic core cover.

[0056] In some examples of the present invention, the valve body assembly further includes: a piston that is fixedly connected to the mating valve. The piston defines an installation space, and at least a part of the mating valve and the electromagnetic assembly are disposed in the installation space.

[0057] In some examples of the present invention, the housing includes a first housing and a second housing. The second housing is sleeved on the first housing. The first housing defines the accommodation space, and the second housing and the first housing jointly define a liquid storage space. The shock absorber further includes a valve bottom assembly located on a side of the valve body assembly away from the overflow valve body. The compression space is selectively communicated with the liquid storage space through the valve bottom assembly.

[0058] The vehicle according to the present invention includes the shock absorber described above.

[0059] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0061] Figure 1 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is not working);

[0062] Figure 2 is Figure 1 an enlarged view of part A in

[0063] Figure 3 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is working, Q1 stage);

[0064] Figure 4 is Figure 3 an enlarged view of part B in

[0065] Figure 5 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is working, Q2 stage);

[0066] Figure 6 is Figure 5 an enlarged view of part C in

[0067] Figure 7 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is working, Q3 stage);

[0068] Figure 8 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is working, Q3 stage);

[0069] Figure 9 is a cross-sectional view of the shock absorber according to an embodiment of the present invention (the electromagnetic assembly is working, Q4 stage);

[0070] Figure 10 Cross-sectional view of the shock absorber according to an embodiment of the present invention (electromagnetic component working, Q4 stage);

[0071] Figure 11 Cross-sectional view of the shock absorber according to an embodiment of the present invention (electromagnetic component working, Q5 stage);

[0072] Figure 12 Schematic diagram of the valve body according to an embodiment of the present invention;

[0073] Figure 13 is Figure 12 Cross-sectional view at D-D in

[0074] Figure 14 is Figure 12 Cross-sectional view at E-E in

[0075] Figure 15 Schematic diagram of the valve cover according to an embodiment of the present invention;

[0076] Figure 16 Cross-sectional view of the valve cover according to an embodiment of the present invention;

[0077] Figure 17 Assembly schematic diagram of the valve body and the valve cover according to an embodiment of the present invention;

[0078] Figure 18 Another angle assembly schematic diagram of the valve body and the valve cover according to an embodiment of the present invention;

[0079] Figure 19 is Figure 18 Cross-sectional view at F-F in

[0080] Figure 20 is Figure 18 Cross-sectional view at G-G in

[0081] Figure 21 Schematic diagram of the check valve according to an embodiment of the present invention;

[0082] Figure 22 Schematic diagram of the overflow valve body according to an embodiment of the present invention;

[0083] Figure 23 Another angle schematic diagram of the overflow valve body according to an embodiment of the present invention;

[0084] Figure 24 Cross-sectional view of the overflow valve body according to an embodiment of the present invention;

[0085] Figure 25 Another angle cross-sectional view of the overflow valve body according to an embodiment of the present invention;

[0086] Figure 26 is a schematic diagram of the mating valve according to an embodiment of the present invention;

[0087] Figure 27 is a schematic diagram of the mating valve from another angle according to an embodiment of the present invention;

[0088] Figure 28 is a cross-sectional view of the mating valve according to an embodiment of the present invention;

[0089] Figure 29 is a schematic diagram of the pilot valve according to an embodiment of the present invention;

[0090] Figure 30 is a cross-sectional view of the pilot valve according to an embodiment of the present invention;

[0091] Figure 31 is a schematic diagram of the valve core according to an embodiment of the present invention;

[0092] Figure 32 is a schematic diagram of the valve core from another angle according to an embodiment of the present invention;

[0093] Figure 33 is a cross-sectional view of the valve core according to an embodiment of the present invention;

[0094] Figure 34 is a cross-sectional view of the valve core from another angle according to an embodiment of the present invention;

[0095] Figure 35 is a schematic diagram of the magnetic isolation member according to an embodiment of the present invention;

[0096] Figure 36 is a cross-sectional view of the magnetic isolation member according to an embodiment of the present invention;

[0097] Figure 37 is a schematic diagram of the coil bracket according to an embodiment of the present invention;

[0098] Figure 38 is a cross-sectional view of the coil bracket according to an embodiment of the present invention;

[0099] Figure 39 is a cross-sectional view of the coil bracket from another angle according to an embodiment of the present invention;

[0100] Figure 40 is a schematic diagram of the bracket cover according to an embodiment of the present invention;

[0101] Figure 41 is a schematic diagram of the bracket cover from another angle according to an embodiment of the present invention;

[0102] Figure 42 It is a schematic diagram of the magnetic core cover according to an embodiment of the present invention;

[0103] Figure 43 It is a cross-sectional view of the magnetic core cover according to an embodiment of the present invention;

[0104] Figure 44 It is a schematic diagram of the metal cap according to an embodiment of the present invention;

[0105] Figure 45 It is a cross-sectional view of the metal cap according to an embodiment of the present invention;

[0106] Figure 46 It is a schematic diagram of the electromagnetic assembly according to an embodiment of the present invention;

[0107] Figure 47 It is a cross-sectional view of the electromagnetic assembly according to an embodiment of the present invention;

[0108] Figure 48 It is a cross-sectional view of the electromagnetic assembly from another angle according to an embodiment of the present invention;

[0109] Figure 49 It is a cross-sectional view of the piston according to an embodiment of the present invention.

[0110] Reference numerals:

[0111] Shock absorber 100; valve body assembly 200; first medium passage 201;

[0112] Shell 10; accommodation space 11; compression space 111; restoration space 112; first shell 12; second shell 13; liquid storage space 14; valve bottom assembly 15; piston 20; installation space 21; internal thread 22; mating hole 23;

[0113] Valve body assembly 30; medium passage 31; first medium passage 311; first sub-medium passage 3111; second sub-medium passage 3112; third sub-medium passage 3113; second medium passage 312; fourth sub-medium passage 3121; fifth sub-medium passage 3122; sixth sub-medium passage 3123; first communication passage 3124;

[0114] Third medium passage 313; check valve 32; flat head screw 321; spring 322; steel ball 323;

[0115] Valve body body 33; valve cover 34; first boss 341; hollow structure 3411; first communication hole 3412; second communication hole 3413;

[0116] First medium flow space 35; seal 36;

[0117] Overflow valve body 40; First elastic member 41; Overflow valve medium passage 42; First overflow valve passage 421; First sub-overflow valve passage 4211; Second sub-overflow valve passage 4212; Third sub-overflow valve passage 4213;

[0118] Second overflow valve passage 422; Fourth sub-overflow valve passage 4221; Fifth sub-overflow valve passage 4222;

[0119] First medium communication port 423; Overflow valve flange 43; Second medium flow space 44; Overflow valve guide post 45;

[0120] Electromagnetic assembly 50; Magnetic core cover 52; Boss structure 521; Second boss 522; Second protrusion 523; Electromagnetic accommodation space 524;

[0121] Coil bracket 53; Bracket space 531; Wire groove 532; Mounting post 533; Bracket body 534; Extension 535;

[0122] Bracket cover 54; Fitting portion 541; First notch 5411; Metal cap 55; Second notch 551;

[0123] Fitting valve 60; First flange of fitting valve 61; First protrusion 62; Fitting valve accommodation space 63; First avoidance hole 64; Second pressure balance passage 65; Second flange of fitting valve 66; External thread 67; Pilot valve 70; Pilot fitting groove 71;

[0124] Magnetic core 80; First groove 81; Second elastic member 82; Second groove 83; Third elastic member 84; First pressure balance passage 85; Magnetic core guide post 86; First recess 87;

[0125] Magnetic isolation member 90; Sealing ring 91; Sealing groove 92; First fitting groove 93; Second fitting groove 94; Second avoidance hole 95. Detailed implementation mode

[0126] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0127] The following refers to Figures 1 - 49 Describe the shock absorber 100 according to an embodiment of the present invention.

[0128] As Figures 1 - 49 shown, the shock absorber 100 according to an embodiment of the present invention includes: a housing 10 and a valve body assembly 200.

[0129] AsFigures 1 - 11 As shown, the housing 10 defines an accommodation space 11, and there is a medium in the accommodation space 11. The medium is a flowable medium, and the medium can flow in the accommodation space 11. As some alternative embodiments of the present application, the medium can be hydraulic oil. As some alternative embodiments of the present application, the medium can be a gas-liquid mixed medium, and the gas can be an inert gas, or the gas can also be nitrogen.

[0130] The valve body assembly 200 includes a valve body component 30, an overflow valve body 40, and an electromagnetic component 50. The valve body component 30 divides the accommodation space 11 into a compression space 111 and a restoration space 112. Among them, the outer sidewall of the valve body component 30 can be sealingly fitted with the inner sidewall of the housing 10 (i.e., the sidewall forming the accommodation space 11) to divide the accommodation space 11 into a compression space 111 and a restoration space 112. Specifically, the space on one side of the valve body component 30 is the compression space 111, and the space on the opposite side of the valve body component 30 is the restoration space 112. Both the overflow valve body 40 and the electromagnetic component 50 are located in the restoration space 112, and the overflow valve body 40 is located between the electromagnetic component 50 and the valve body component 30. That is to say, the overflow valve body 40 is located on the side of the electromagnetic component 50 close to the valve body component 30, and a first medium channel 201 is formed between the overflow valve body 40 and the valve body component 30, and the medium can flow through the first medium channel 201.

[0131] The electromagnetic component 50 is adapted to drive the overflow valve body 40 to move close to the valve body component 30 to adjust the opening degree of the first medium channel 201. It should be noted that after the electromagnetic component 50 is energized, a magnetic force is generated to cause the two magnetic parts to generate an attractive force on each other, so that the two magnetic parts move closer to each other. By using this principle, the movement of the magnetic parts can be used to drive the overflow valve body 40 to move close to the valve body component 30. For example, the overflow valve body 40 can be arranged between the two magnetic parts. After the electromagnetic component 50 is energized, the two magnetic parts move closer to each other to drive the overflow valve body 40 to move close to the valve body component 30. For another example, assuming that the two magnetic parts are a first magnetic part and a second magnetic part, the overflow valve body 40 can be arranged inside the first magnetic part, and then a driving rod or other structure is passed through the first magnetic part, and the two ends of the driving rod or other structure are respectively abutted against the overflow valve body 40 and the second magnetic part, and the first magnetic part is fixed relative to the second magnetic part. After the electromagnetic component 50 is energized, since the first magnetic part is fixed relative to the second magnetic part, the second magnetic part will move towards the first magnetic part. When the second magnetic part moves, it will drive the driving rod (or other structure) to move, so as to drive the overflow valve body 40 to move close to the valve body component 30. It can be understood that in this embodiment, the first magnetic part is the static magnetic part, the second magnetic part is the moving magnetic part, the first magnetic part can be the mating valve 60 described below, and the second magnetic part can be the magnetic core 80 described below.

[0132] As some alternative embodiments of the present application, the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201, or the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to close the first medium passage 201. Whether the electromagnetic assembly 50 drives the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201 or to close the first medium passage 201 can be designed according to the actual needs of the product. For example, if it is required that the electromagnetic assembly 50 drives the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201 instead of closing the first medium passage 201, the limit can be designed on some structures so that the magnetic part or the overflow valve body 40 cannot continue to move after moving a certain stroke. If it is required that the electromagnetic assembly 50 drives the overflow valve body 40 to move closer to the valve body assembly 30 to close the first medium passage 201, there is no need for limiting. When the overflow valve body 40 moves into contact with the valve body assembly 30, the first medium passage 201 is closed. Or, a drivable (which can also be understood as adjustable) limiting member can also be designed to switch between reducing the opening degree of the first medium passage 201 and closing the first medium passage 201.

[0133] The valve body assembly 30 has a medium passage 31, and the compression space 111 is selectively communicated with the restoration space 112 through the medium passage 31. The valve body assembly 200 is adapted to move in the housing 10 along the first direction (i.e., Figure 1 the X direction shown) of the shock absorber 100 so that the volumes of the compression space 111 and the restoration space 112 change. Specifically, when the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the restoration space 112 increases, and the medium in the compression space 111 can flow into the restoration space 112 through the medium passage 31. When the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the restoration space 112, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, and the medium in the restoration space 112 can flow into the compression space 111 through the medium passage 31.

[0134] In the embodiment where the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to close the first medium passage 201, when the first medium passage 201 is closed, the medium in the compression space 111 can flow into the restoration space 112 through the medium passage 31, and the medium in the restoration space 112 can flow into the compression space 111 through the medium passage 31. When the first medium passage 201 is open, the medium in the compression space 111 can flow into the restoration space 112 through the medium passage 31 and the first medium passage 201, and the medium in the restoration space 112 can flow into the compression space 111 through the medium passage 31 and the first medium passage 201.

[0135] In an embodiment where the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201, when the electromagnetic assembly 50 is not working, the medium in the compression space 111 can flow into the restoration space 112 through the medium passage 31 and the first medium passage 201, and the medium in the restoration space 112 can flow into the compression space 111 through the medium passage 31 and the first medium passage 201. When the electromagnetic assembly 50 is working, the opening degree of the first medium passage 201 is reduced, and the medium in the compression space 111 can flow into the restoration space 112 through the medium passage 31 and the first medium passage 201 with the reduced opening degree, and the medium in the restoration space 112 can flow into the compression space 111 through the medium passage 31 and the first medium passage 201 with the reduced opening degree.

[0136] It can be understood that when the first medium passage 201 is closed or its opening degree is reduced, the damping of the shock absorber 100 is relatively large. The shock absorber 100 in this state can be applicable to the situation where the vehicle is driving on an uneven road surface. When the first medium passage 201 is opened or its opening degree is increased, the damping of the shock absorber 100 is relatively small. The shock absorber 100 in this state can be applicable to the situation where the vehicle is driving on a relatively flat road surface.

[0137] In short, the shock absorber 100 of the present application has at least two working states. One is that the electromagnetic assembly 50 is not working, and the first medium passage 201 is opened or has a relatively large opening degree. The shock absorber 100 in this working state has relatively small damping and can be applicable to the situation where the vehicle is driving on a relatively flat road surface. The other is that the electromagnetic assembly 50 is working, and the first medium passage 201 is closed or has a relatively small opening degree. The shock absorber 100 in this working state has relatively large damping and can be applicable to the situation where the vehicle is driving on an uneven road surface.

[0138] As some alternative embodiments of the present application, the electromagnetic assembly 50 can be automatically started according to the road surface and vehicle bump conditions, and the electromagnetic assembly 50 can also be started according to the driver's instructions.

[0139] It can be understood that closing the first medium passage 201 can also be understood as adjusting the opening degree of the first medium passage 201. Closing the first medium passage 201 means adjusting the opening degree of the first medium passage 201 to zero.

[0140] Thus, the shock absorber 100 of the present application can drive the overflow valve body 40 to move according to actual needs to adjust the opening degree of the first medium passage 201, so that the damping of the shock absorber 100 can be adjusted according to actual needs, can meet various road conditions, and is beneficial to improving the riding experience of passengers.

[0141] In some embodiments of the present application, such as Figures 1 - 20As shown, 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 restoration space 112 through the first medium passage 311, and the medium in the restoration space 112 may flow into the compression space 111 through the second medium passage 312. Among them, check valves 32 are provided in both the first medium passage 311 and the second medium passage 312, that is, both the first medium passage 311 and the second medium passage 312 are one-way passages.

[0142] Among them, the valve body assembly 30 has a medium passage 31, and the compression space 111 and the restoration space 112 can be selectively communicated through the medium passage 31. Specifically, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the restoration space 112 increases, and the medium in the compression space 111 can flow into the restoration space 112 through the first medium passage 311. During the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the restoration space 112, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, and the medium in the restoration space 112 can flow into the compression space 111 through the second medium passage 312.

[0143] Moreover, both the first medium passage 311 and the second medium passage 312 can be configured as one-way passages. That is to say, the medium in the compression space 111 can flow into the restoration space 112 through the first medium passage 311, but the medium in the compression space 111 cannot flow into the restoration space 112 through the second medium passage 312. The medium in the restoration space 112 can flow into the compression space 111 through the second medium passage 312, but the medium in the restoration space 112 cannot flow into the compression space 111 through the first medium passage 311.

[0144] Such a setting can enable the compression space 111 and the restoration space 112 to be communicated through different passages when the valve body assembly 200 moves in different directions, which can make the flow of the medium smooth and is conducive to improving the smoothness of vibration reduction. Moreover, as an optional effect, in the above embodiments, such a setting can enable the second magnetic member not to be provided with a ventilation structure, which is conducive to reducing the manufacturing difficulty of the second magnetic member.

[0145] As some alternative embodiments of the present application, a shock absorber 100 is installed in the wheel area of the vehicle to reduce the jolts during vehicle driving. When relative movement occurs between the vehicle body and the wheels, the valve body assembly 200 can move along the first direction of the shock absorber 100, and the medium can flow from the recovery space 112 into the compression space 111 or from the compression space 111 into the recovery space 112 to play a shock-absorbing role, and can convert the vibration energy into heat energy of the oil and gas and dissipate it into the atmosphere, so that the shock absorber 100 can work in a lower temperature range for a long time, which is beneficial to improving the shock-absorbing effect of the shock absorber 100.

[0146] In some embodiments of the present invention, such as Figure 5 , Figure 6 , Figure 11 shown, the medium is adapted to drive the overflow valve body 40 away from the valve body assembly 30 to adjust the opening degree of the first medium passage 201.

[0147] It can be seen from the above that, as some alternative embodiments of the present application, the shock absorber 100 of the present application has at least two working states. One is that the electromagnetic assembly 50 is not working, and the other is that the electromagnetic assembly 50 is working. When the electromagnetic assembly 50 is working, the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201 or close the first medium passage 201. In this working 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 the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to close the first medium passage 201, then the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to open the first medium passage 201. If the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201, then the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to increase the opening degree of the first medium passage 201.

[0148] Among the embodiments in which the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to close the first medium passage 201, when the electromagnetic assembly 50 operates, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the recovery space 112 increases, and the medium in the compression space 111 can flow into the recovery space 112 through the medium passage 31. Moreover, the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to open the first medium passage 201, so that the medium can flow into the recovery space 112 through the medium passage 31 and the first medium passage 201. During the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the recovery space 112, the volume of the recovery space 112 decreases, the volume of the compression space 111 increases, and the medium in the recovery space 112 can flow into the compression space 111 through the medium passage 31. Moreover, the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to open the first medium passage 311, so that the medium can flow into the compression space 111 through the medium passage 31 and the first medium passage 201.

[0149] Among the embodiments in which the electromagnetic assembly 50 can drive the overflow valve body 40 to move closer to the valve body assembly 30 to reduce the opening degree of the first medium passage 201, when the electromagnetic assembly 50 operates, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the recovery space 112 increases, and 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 with a reduced opening degree. Moreover, the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to increase the opening degree of the first medium passage 201, so that the medium can flow into the recovery space 112 through the medium passage 31 and the first medium passage 201 with an increased opening degree. During the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the recovery space 112, the volume of the recovery space 112 decreases, the volume of the compression space 111 increases, 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 with a reduced opening degree. Moreover, the medium can drive the overflow valve body 40 to move away from the valve body assembly 30 to increase the opening degree of the first medium passage 311, so that the medium can flow into the compression space 111 through the medium passage 31 and the first medium passage 201 with an increased opening degree.

[0150] It can be understood that when the first medium passage 201 is closed or its opening degree is reduced, the damping of the shock absorber 100 is relatively large. The shock absorber 100 in this state can be applied to the situation where the vehicle is driving on an uneven road surface. By constructing 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 bump 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 and improve the shock absorption effect of the shock absorber 100, thereby improving the riding experience of the occupants.

[0151] It should be explained that when the vehicle bump amplitude is too large, the volume changes of the compression space 111 and the recovery space 112 per unit time are large, which will cause a large amount of medium to flow between the compression space 111 and the recovery space 112. However, since the first medium passage 201 is closed or its opening degree is reduced when the electromagnetic assembly 50 works, the medium cannot flow quickly, and the medium accumulates at the overflow valve body 40. 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. Such a setting can enable the vehicle applying the shock absorber 100 proposed in this application to have a good shock absorption effect, which is beneficial to improving the riding experience of the occupants.

[0152] In some embodiments of the present application, such as Figures 3 - 6 、 Figure 13 、 Figure 19 shown, the first medium passage 311 may include: a first sub-medium passage 3111, a second sub-medium passage 3112, and a third sub-medium passage 3113. Among them, the second sub-medium passage 3112 may be connected between the first sub-medium passage 3111 and the third sub-medium passage 3113. That is to say, the first sub-medium passage 3111 may be connected to the second sub-medium passage 3112, and the third sub-medium passage 3113 may be connected to the second sub-medium passage 3112. And, the first medium passage 311 may be connected to the compression space 111, the third sub-medium passage 3113 may be connected to the recovery space 112, and both the first sub-medium passage 3111 and the third sub-medium passage 3113 may be one-way passages. When the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the recovery space 112 increases, and the medium in the compression space 111 can flow into the recovery space 112 through the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113 in sequence.

[0153] Moreover, both the first sub-medium passage 3111 and the third sub-medium passage 3113 can be configured as one-way passages. That is to say, the medium in the compression space 111 can flow into the restoration space 112 through the first sub-medium passage 3111 and the third sub-medium passage 3113, but the medium in the restoration space 112 cannot flow into the compression space 111 through the first sub-medium passage 3111 and the third sub-medium passage 3113.

[0154] Such a setting can make the structural form of the first medium passage 311 reasonable, enabling the medium in the compression space 111 to flow into the restoration space 112 successively through the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113. Moreover, it can prevent the medium in the restoration space 112 from flowing into the compression space 111 through the first sub-medium passage 3111 and the third sub-medium passage 3113, thereby ensuring smooth medium flow and facilitating the improvement of the smoothness of vibration reduction.

[0155] As some alternative embodiments of the present application, such as Figures 3 - 6 、 Figure 13 、 Figure 19 shown, the first sub-medium passage 3111 and the third sub-medium passage 3113 can extend along the first direction (i.e., the X direction shown in Figure 1 ), and the second sub-medium passage 3112 can extend along the second direction (i.e., the Y direction shown in Figure 1 ), where the first direction is perpendicular to the second direction. Such a setting can make the extension directions of the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113 reasonable, facilitating the reduction of the manufacturing difficulty of the valve body assembly 30. Moreover, such a setting can reasonably design the extension directions of multiple passages, helping to reduce the volume of the valve body assembly 30, save materials, and thus reduce the production cost of the valve body assembly 30.

[0156] In some embodiments of the present application, such as Figures 3 - 6 、 Figure 19 shown, check valves 32 can be provided in both the first sub-medium passage 3111 and the third sub-medium passage 3113. By providing check valves 32 in the first sub-medium passage 3111 and the third sub-medium passage 3113, the first sub-medium passage 3111 and the third sub-medium passage 3113 can be configured as one-way passages, thereby configuring the first medium passage 311 as a one-way passage.

[0157] Among them, any type of check valve 32 can be used for the check valve 32. As some alternative embodiments of the present application, such as Figure 21As shown, the one-way valve 32 may include a flat screw 321, a spring 322, and a steel ball 323. The magnitude of the spring force and the size of the liquid passage aperture of the flat screw 321 may be adjusted according to actual requirements to adjust the damping of the shock absorber 100.

[0158] In some embodiments of the present application, as Figure 3 , Figure 4 , Figure 13 , Figure 19 shown, the third sub-medium passage 3113 may be provided on the outer sidewall of the valve body assembly 30. It should be noted that the outer sidewall of the valve body assembly 30 may cooperate with the inner sidewall of the housing 10. By providing the third sub-medium passage 3113 on the outer sidewall of the valve body assembly 30, a part of the sidewall of the third sub-medium passage 3113 may be constituted by the valve body assembly 30, and another part of the sidewall of the third sub-medium passage 3113 may be constituted by the inner sidewall of the housing 10. Such a setting can make the setting position of the third sub-medium passage 3113 reasonable, and enable the medium in the compression space 111 to flow smoothly into the restoration space 112.

[0159] It should be explained that, as Figure 1 shown, since the third sub-medium passage 3113 is provided on the outer sidewall of the valve body assembly 30, along the first direction, the outer sidewall of the part of the valve body assembly 30 without the third sub-medium passage 3113 can be hermetically fitted with the inner sidewall of the housing 10 (i.e., the sidewall forming the accommodation space 11).

[0160] In some embodiments of the present application, as Figure 1 , Figure 2 , Figures 7 - 11 , Figure 14 and Figure 20 shown, the second medium passage 312 may include: a fourth sub-medium passage 3121, a fifth sub-medium passage 3122, and a sixth sub-medium passage 3123. Among them, the fifth sub-medium passage 3122 is connected between the fourth sub-medium passage 3121 and the sixth sub-medium passage 3123. That is to say, the fourth sub-medium passage 3121 can be connected to the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 can be connected to the fifth sub-medium passage 3122. Moreover, the fourth sub-medium passage 3121 can be connected to the restoration space 112, the sixth sub-medium passage 3123 can be connected to the compression space 111, and both the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 can be one-way passages. When the valve body assembly 200 moves towards the restoration space 112 along the first direction of the shock absorber 100, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, and the medium in the restoration space 112 can flow into the compression space 111 through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 in sequence.

[0161] Moreover, both the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 can be configured as one-way passages. That is to say, the medium in the restoration space 112 can 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 cannot flow into the restoration space 112 through the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123.

[0162] Such a setting can make the structural form of the second medium passage 312 reasonable, enable the medium in the restoration space 112 to flow into the compression space 111 successively through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123, and can prevent the medium in the compression space 111 from flowing into the restoration space 112 through the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123, thereby making the flow of the medium smooth and conducive to improving the smoothness of vibration reduction.

[0163] In some embodiments of the present application, such as Figure 1 , Figure 2 , Figures 7 - 11 and Figure 20 shown, check valves 32 can be provided in both the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123. By providing check valves 32 in the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123, both the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123 can be configured as one-way passages, and thus the second medium passage 312 can be configured as one-way passage.

[0164] Among them, any type of check valve 32 can be used for the check valve 32. As some alternative embodiments of the present application, as Figure 21 shown, the check valve 32 can include a flat screw 321, a spring 322 and a steel ball 323. The magnitude of the spring force and the liquid passage aperture size of the flat screw 321 can be adjusted according to actual requirements to adjust the damping of the shock absorber 100.

[0165] In some embodiments of the present application, such as Figure 7 , Figure 14 and Figure 20As shown, the fourth sub-medium passage 3121 can be provided on the outer sidewall of the valve body assembly 30. It should be noted that the outer sidewall of the valve body assembly 30 can cooperate with the inner sidewall of the housing 10. By providing the fourth sub-medium passage 3121 on the outer sidewall of the valve body assembly 30, part of the sidewall of the fourth sub-medium passage 3121 can be constituted by the valve body assembly 30, and the other part of the sidewall of the fourth sub-medium passage 3121 can be constituted by the inner sidewall of the housing 10. Such a setting can make the setting position of the fourth sub-medium passage 3121 reasonable, and enable the medium in the restoration space 112 to flow smoothly into the compression space 111.

[0166] It should be explained that, as Figure 7 shown, since the fourth sub-medium passage 3121 is provided on the outer sidewall of the valve body assembly 30, along the first direction, the outer sidewall of the part of the valve body assembly 30 without the fourth sub-medium passage 3121 can be hermetically fitted with the inner sidewall of the housing 10 (i.e., the sidewall forming the accommodation space 11). And, along the first direction, the third sub-medium passage 3113 and the fourth sub-medium passage 3121 are both provided 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 both provided on the part of the valve body assembly 30 close to the restoration space 112, so that the outer sidewall of the valve body assembly 30 on the side away from the restoration space 112 can be hermetically fitted with the inner sidewall of the housing 10 (i.e., the sidewall forming the accommodation space 11).

[0167] Moreover, a first communication passage 3124 can be connected between the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122, and the first communication passage 3124 can have an angle with the fourth sub-medium passage 3121 and / or the fifth sub-medium passage 3122.

[0168] As some alternative embodiments of the present application, the fourth sub-medium passage 3121 can be extended and provided along the first direction, and the extending direction of the first communication passage 3124 and the extending direction of the fourth sub-medium passage 3121 have an angle, that is, the extending direction of the first communication passage 3124 and the extending direction of the fourth sub-medium passage 3121 are not parallel.

[0169] As some alternative embodiments of the present application, the fifth sub-medium passage 3122 can be extended and provided along the first direction, and the extending direction of the first communication passage 3124 and the extending direction of the fifth sub-medium passage 3122 have an angle, that is, the extending direction of the first communication passage 3124 and the extending direction of the fifth sub-medium passage 3122 are not parallel.

[0170] As some alternative embodiments of the present application, as Figure 7 、 Figure 11 and Figure 20As shown, both the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122 can be arranged to extend along the first direction. The first communication passage 3124 is connected between the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. The extending direction of the first communication passage 3124 and the extending direction of the fourth sub-medium passage 3121 have an angle, that is, the extending direction of the first communication passage 3124 and the extending direction of the fourth sub-medium passage 3121 are not parallel. Moreover, the extending direction of the first communication passage 3124 and the extending direction of the fifth sub-medium passage 3122 have an angle, that is, the extending direction of the first communication passage 3124 and the extending direction of the fifth sub-medium passage 3122 are not parallel. Such an 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 beneficial to reducing the manufacturing difficulty of the valve body assembly 30. And, such an arrangement can reasonably design the extending directions of multiple passages, which is beneficial to reducing the volume of the valve body assembly 30 and saving materials, thereby being able to reduce the production cost of the valve body assembly 30.

[0171] As some alternative embodiments of the present application, as Figure 1 , Figure 2 , Figures 7 - 11 and Figure 20 shown, the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 can all be arranged to extend along the first direction. The extending direction of the first communication passage 3124 and the extending directions of the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 all have angles. Such an arrangement can reasonably design the extending directions of multiple passages, and can further reduce the production cost of the valve body assembly 30.

[0172] In some embodiments of the present application, as Figures 3 - 6 , Figures 9 - 11 , Figure 13 and Figure 19 shown, the multiple medium passages 31 can further include a third medium passage 313. The third medium passage 313 can be connected between the first sub-medium passage 3111 and the second sub-medium passage 3112, and the third medium passage 313 can be connected between the fifth sub-medium passage 3122 and the sixth sub-medium passage 3123.

[0173] Specifically, when the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the restoration space 112 increases, and the medium in the compression space 111 can flow into the restoration space 112 through the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113 in sequence. Moreover, 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 from the third medium passage 313 into the second sub-medium passage 3112.

[0174] When the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the restoration space 112, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, and the medium in the restoration space 112 can flow into the compression space 111 through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 in sequence. Moreover, 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.

[0175] Such a setting can make the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression tool both flow through the third medium passage 313. Thus, on the basis of not affecting the one-way conduction of the first medium passage 311 and the one-way conduction of the second medium passage 312, the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression space 111 can share the third medium passage 313, which can make the structural form of the medium passage 31 of the valve body assembly 30 reasonable, conducive to further reducing the volume of the valve body assembly 30, conducive to further saving materials, and thus can further reduce the production cost of the valve body assembly 30.

[0176] In some embodiments of the present application, such as Figures 1 - 20As shown, the valve body assembly 30 may include a valve body main body 33 and a valve cover 34. The valve cover 34 may be located between the valve body main body 33 and the overflow valve body 40. That is to say, the valve cover 34 may be located at one side of the valve body main body 33 close to the overflow valve body 40. And the valve cover 34 may be fixedly arranged on the valve body main body 33. As some alternative embodiments of the present application, the valve cover 34 may be fixedly arranged on the valve body main body 33 by, but not limited to, welding or screwing. Among them, parts of the first medium passage 311, the second medium passage 312, and the third medium passage 313 may be arranged in the valve body main body 33, and the other parts of the first medium passage 311, the second medium passage 312, and the third medium passage 313 may be arranged in the valve cover 34. That is to say, parts of the first medium passage 311, the second medium passage 312, and the third medium passage 313 may be formed on the valve body main body 33, and the other parts of the first medium passage 311, the second medium passage 312, and the third medium passage 313 may be formed on the valve cover 34.

[0177] As some alternative embodiments of the present application, a first medium channel 201 is formed between the valve cover 34 and the overflow valve body 40.

[0178] As some alternative embodiments of the present application, as Figures 3 - 9 and Figure 19 shown, the first sub-medium passage 3111 may penetrate the valve body assembly 30 along the first direction (i.e., the X direction shown in Figure 1 ). That is to say, the first sub-medium passage 3111 may penetrate the valve body main body 33 and the valve cover 34 along the first direction. The second sub-medium passage 3112 may be formed in the valve body main body 33. Part of the third sub-medium passage 3113 may be formed in the valve body main body 33, and the other part of the third sub-medium passage 3113 may be formed in the valve cover 34. And along the first direction (i.e., the X direction shown in Figure 1 ), the third sub-medium passage 3113 may penetrate the valve cover 34.

[0179] Part of the fourth sub-medium passage 3121 may be formed in the valve body main body 33, and the other part of the fourth sub-medium passage 3121 may be formed in the valve cover 34. And along the first direction (i.e., the X direction shown in Figure 1 ), the fourth sub-medium passage 3121 may penetrate the valve cover 34. Part of the fifth sub-medium passage 3122 may be formed in the valve body main body 33, and the other part of the fifth sub-medium passage 3122 may be formed in the valve cover 34. And along the first direction (i.e., the X direction shown in Figure 1 ), the fifth sub-medium passage 3122 may penetrate the valve cover 34. The sixth sub-medium passage 3123 may be formed in the valve body main body 33, and the first communication passage 3124 may be formed in the valve body main body 33.

[0180] By constructing the valve body assembly 30 to include a valve body main body 33 and a valve cover 34, the structural form of the valve body assembly 30 can be made reasonable, and it is easy to form a first medium passage 311, a second medium passage 312, and a third medium passage 313 on the valve body assembly 30, which is beneficial to reducing the manufacturing difficulty of the valve body assembly 30.

[0181] In some embodiments of the present application, as Figures 1 - 11 、 Figures 15 - 20 shown, the valve cover 34 may have a first boss 341 protruding towards the overflow valve body 40. The first boss 341 may be a hollow structure 3411, and the hollow part of the first boss 341 may be configured as a part of the third medium passage 313. That is to say, a part of the third medium passage 313 may be formed on the valve body main body 33, and another part of the third medium passage 313 may be formed on the valve cover 34. Specifically, another part of the third medium passage 313 may be formed as the hollow part of the first boss 341.

[0182] At least one first communication hole 3412 may be provided on the side wall of the first boss 341. Among them, the number of the first communication holes 3412 may be one, or the number of the first communication holes 3412 may also be multiple. The multiple first communication holes 3412 may be arranged 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.

[0183] Specifically, when the valve body assembly 200 moves towards the compression space 111 along the first direction of the shock absorber 100, the volume of the compression space 111 decreases, the volume of the recovery space 112 increases, and the medium in the compression space 111 can flow into the recovery space 112 successively through the first sub-medium passage 3111, the second sub-medium passage 3112, and the third sub-medium passage 3113. And when the medium flows into the first sub-medium passage 3111, the medium can flow out of the valve body assembly 30, then the medium can flow into the third medium passage 313 through the first communication hole 3412, and then flow into the second sub-medium passage 3112 from the third medium passage 313.

[0184] During the movement of the valve body assembly 200 towards the restoration space 112 along the first direction of the shock absorber 100, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, and the medium in the restoration space 112 can flow into the compression space 111 through the fourth sub-medium passage 3121, the fifth sub-medium passage 3122, and the sixth sub-medium passage 3123 in sequence. Moreover, 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.

[0185] Such an arrangement can enable the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression space 111 to both flow through the first communication hole 3412, can enable the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression space 111 to share the first communication hole 3412, and can make the structural form of the medium passage 31 of the valve body assembly 30 reasonable.

[0186] In some embodiments of the present application, as Figures 1 - 11 、 Figures 26 - 28 shown, the valve body assembly 200 may further include a mating valve 60. The mating valve 60 may be sleeved outside the overflow valve body 40. That is to say, the overflow valve body 40 may be located within 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, the 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.

[0187] As Figures 3 - 6 、 Figure 8 、 Figure 9 and Figure 11 shown, the mating valve 60, the valve body assembly 30, and the overflow valve body 40 may jointly define a first medium flow space 35. The first sub-medium passage 3111 and the fifth sub-medium passage 3122 may both penetrate the valve cover 34 along the first direction. The first medium flow space 35 may communicate with the first communication hole 3412 and the first sub-medium passage 3111, and the first medium flow space 35 may communicate with the first communication hole 3412 and the fifth sub-medium passage 3122.

[0188] Specifically, when the valve body assembly 200 moves towards the compression space 111 along the first direction of the shock absorber 100, after the medium in the compression space 111 flows into the first sub-medium passage 3111, since the first sub-medium passage 3111 penetrates the valve cover 34 along the first direction, the medium can flow out of the valve body assembly 30 through the first sub-medium passage 3111 and enter the first medium flow space 35. Then, the medium in the first medium flow space 35 can flow into the third medium passage 313 through the first communication hole 3412, and then flow into the second sub-medium passage 3112 from the third medium passage 313.

[0189] When the valve body assembly 200 moves towards the restoration space 112 along the first direction of the shock absorber 100, the medium in the restoration space 112 can sequentially pass through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. When the medium flows into the fifth sub-medium passage 3122, since the first sub-medium passage 3111 penetrates the valve cover 34 along the fifth direction, the medium can flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and enter the first medium flow space 35. Then, the medium in the fifth medium flow 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.

[0190] Such an arrangement can enable the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression tool to both flow through the first medium flow space 35. Thus, on the basis of not affecting the one-way conduction of the first medium passage 311 and the one-way conduction of the second medium passage 312, the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression space 111 can share the first medium flow space 35. The external space of the valve body assembly 30 can be utilized to incorporate the space outside the valve body assembly 30 into the medium flow path, thereby reasonably utilizing the space of the shock absorber 100, making the design of the shock absorber 100 reasonable, improving the design rationality of the shock absorber 100, and moreover, facilitating the simplification of the internal structure of the valve body assembly 30, thus facilitating the reduction of the production difficulty of the valve body assembly 30.

[0191] In some embodiments of the present application, the electromagnetic assembly 50 is adapted to drive the overflow valve body 40 to move towards the valve body assembly 30 to reduce the opening degree of the first medium channel 201 or close the first medium channel 201. In the working mode where the electromagnetic assembly 50 reduces the opening degree of the first medium channel 201 or closes the first medium channel 201, the medium at the first medium flow space 35 is adapted to drive the overflow valve body 40 to move away from the valve body assembly 30 to increase the opening degree of the first medium channel 201 or open the first medium channel 201.

[0192] Specifically, in the operating mode where the electromagnetic assembly 50 reduces the opening degree of the first medium passage 201 or closes the first medium passage 201, during the movement of the valve body assembly 200 towards the compression space 111 along the first direction of the shock absorber 100, after the medium in the compression space 111 flows into the first sub-medium passage 3111, since the first sub-medium passage 3111 penetrates the valve cover 34 along the first direction, the medium can flow out of the valve body assembly 30 through the first sub-medium passage 3111 and enter the first medium flow space 35. At this time, if the electromagnetic assembly 50 closes the first medium passage 201, the medium in the first medium flow space 35 can only flow into the third medium passage 313 through the first communication hole 3412. If the electromagnetic assembly 50 reduces the opening degree of the first medium passage 201, the medium in the first medium flow space 35 can flow into the third medium passage 313 through the first communication hole 3412, and the medium in the first medium flow space 35 can also flow towards the restoration space 112 through the first medium passage 201 with a reduced opening degree.

[0193] It should be noted that whether the electromagnetic assembly 50 reduces 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 flow space 35 is greater than the amount flowing away through the first medium flow space 35. That is to say, during the movement of the valve body assembly 200 towards the compression space 111 along the first direction of the shock absorber 100, a large amount of medium accumulates in the first medium flow space 35. Since the cooperation valve 60, the valve body assembly 30, and the overflow valve body 40 jointly define the first medium flow space 35, the medium accumulated in the first medium flow space 35 has a contact surface with the overflow valve body 40, and the medium accumulated in the first medium flow space 35 will exert a thrust on 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 flow space 35 can flow away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree.

[0194] In the operating mode where the electromagnetic component 50 reduces the opening degree of the first medium passage 201 or closes the first medium passage 201, during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the restoration space 112, after the medium in the restoration space 112 flows into the fifth sub-medium passage 3122, since the first sub-medium passage 3111 penetrates the valve cover 34 along the fifth direction, the medium can flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and enter the first medium flow space 35. At this time, if the electromagnetic component 50 closes the first medium passage 201, the medium in the first medium flow space 35 can only flow into the third medium passage 313 through the first communication hole 3412. If the electromagnetic component 50 reduces the opening degree of the first medium passage 201, the medium in the first medium flow space 35 can flow into the third medium passage 313 through the first communication hole 3412, and the medium in the first medium flow space 35 can also flow towards the compression space 111 through the first medium passage 201 with a reduced opening degree.

[0195] It should be noted that whether the electromagnetic component 50 reduces 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 flow space 35 is greater than the amount flowing away through the first medium flow space 35. That is to say, during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the restoration space 112, a large amount of medium accumulates in the first medium flow space 35. In this case, the present application proposes two embodiments. One is the same as that described above. Since the cooperation valve 60, the valve body assembly 30, and the overflow valve body 40 jointly define the first medium flow space 35, the medium accumulated in the first medium flow space 35 has a contact surface with the overflow valve body 40, and the medium accumulated in the first medium flow space 35 will exert a thrust on 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 flow space 35 can flow away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree.

[0196] Second, another flow path can be formed in the overflow valve body 40, and the medium accumulated in the first medium flow space 35 can flow away through the flow path formed in the overflow valve body 40. Moreover, the medium can flow into the third medium passage from the overflow valve body 40 through the flow path formed in the overflow valve body 40. In addition, the medium flowing away through the flow path formed in the overflow valve body 40 will accumulate on the side of the overflow valve body 40 facing the valve body assembly 30, and the accumulated medium can apply a thrust to the overflow valve body 40 to move the overflow valve body 40 away from the valve body assembly 30, so as to open the first medium passage 201 or increase the opening degree of the first medium passage 201, enabling the medium accumulated in the first medium flow space 35 to flow away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree. (For the specific flow path design of the overflow valve body 40, please refer to the following text.)

[0197] It should be noted that when the electromagnetic assembly 50 is operating, the damping of the shock absorber 100 is relatively large. By setting the medium at the first medium flow space 35 of the shock absorber 100 to be able to drive the overflow valve body 40 to move away from the valve body assembly 30 to increase the opening degree of the first medium passage 201 or open the first medium passage 201, the vehicle applying the shock absorber 100 proposed in this application can have a good shock absorption effect, which is beneficial to improving the riding experience of the passengers.

[0198] In some embodiments of the present application, as Figures 4 - 6 , Figures 8 - 11 , Figures 15 - 20 shown, the top wall of the first boss 341 can have at least one second communication hole 3413, and the second communication hole 3413 can communicate the third medium passage 313 and the first medium passage 201. The number of the second communication holes 3413 can be one, or the number of the second communication holes 3413 can also be multiple. The multiple second communication holes 3413 can be arranged at intervals in the circumferential direction, and the second communication hole 3413 can penetrate the top wall of the first boss 341 to communicate the third medium passage 313 and the first medium passage 201.

[0199] Specifically, after the medium in the compression space 111 flows into the first sub-medium passage 3111, the medium can flow out of the valve body assembly 30 through the first sub-medium passage 3111 and enter the first medium flow space 35. The medium in the first medium flow space 35 can flow into the first medium passage 201, and then, the medium can flow into the third medium passage 313 through the second communication hole 3413 and sequentially flow into the restoration space 112 through the second sub-medium passage 3112 and the third sub-medium passage 3113.

[0200] After the medium in the restoration space 112 flows into the fifth sub-medium passage 3122, the medium can flow out of the valve body assembly 30 through the fifth sub-medium passage 3122 and enter the first medium flow space 35. The medium in the first medium flow space 35 can flow into the first medium passage 201. Then, the medium can flow into the third medium passage 313 through the second communication hole 3413 and flow into the compression space 111 through the sixth sub-medium passage 3123.

[0201] By providing the second communication hole 3413 that connects the third medium passage 313 and the first medium passage 201 on the top wall of the first boss 341, the medium flowing into the first medium passage 201 can enter the third medium passage 313 through the second communication hole 3413. Moreover, since the medium flowing from the compression space 111 into the restoration space 112 and the medium flowing from the restoration space 112 into the compression space 111 share the third medium passage 313, the medium entering the third medium passage 313 from the first medium passage 201 through the second communication hole 3413 can flow into the restoration space 112 or the compression space 111. This can make the flow path of the shock absorber 100 reasonably and exquisitely arranged, endowing the shock absorber 100 with multiple working modes, enabling the vehicle applying the shock absorber 100 proposed in this application to have good shock absorption effect. Additionally, it can also make the flow path from the compression space 111 to the restoration space 112 share part of the flow path with the flow path from the restoration space 112 to the compression space 111, which is beneficial to reducing the manufacturing quantity of the flow path and the production difficulty of the shock absorber 100.

[0202] In some embodiments of the present application, as Figures 2 - 5 、 Figures 22 - 25 shown, the valve body assembly 200 may further include a first elastic member 41. Among them, the overflow valve body 40 may have an overflow valve guide post 45 extending towards the valve body assembly 30. The first elastic member 41 may be sleeved on the overflow valve guide post 45, and the first elastic member 41 may be abutted between the overflow valve body 40 and the valve body assembly 30, specifically against the valve cover 34.

[0203] As some alternative embodiments of the present application, the second communication hole 3413 may be arranged on the circumferential outer side of the first elastic member 41. Such an arrangement can make the setting position of the second communication hole 3413 reasonable, enabling the top wall of the first boss 341 to provide both an abutting position for the first elastic member 41 and a setting position for the second communication hole 3413.

[0204] The first elastic member 41 is adapted to drive the overflow valve body 40 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 should be noted that when the electromagnetic assembly 50 is not working, under the thrust of the first elastic member 41, the first medium passage 201 is in an open state all the time. In other words, when the electromagnetic assembly 50 is not working, under the thrust of the first elastic member 41, the overflow valve body 40 and the valve body assembly 30 are spaced apart in the first direction. Such a setting can configure the overflow valve body 40 as a normally open valve, which can make the setting of the shock absorber 100 reasonable. It can be understood that when the shock absorber 100 proposed in this application is applied to a vehicle, the vehicle mostly travels on relatively flat roads. By setting the first elastic member 41, the electromagnetic assembly 50 does not need to work for most of the application time of the shock absorber 100, which is beneficial to energy saving.

[0205] 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 in the first medium flow space 35 can both be adjusted according to actual needs. Moreover, the flow area of any one of the sub-medium passages 31 in the first medium passage 311 and the second medium passage 312, the flow area of the third medium passage 313, the flow area of the first communication passage 3124, the flow area of at least one first communication hole 3412, and the flow area of at least one second communication hole 3413 can all be adjusted according to actual needs so that the damping of the shock absorber 100 can be adapted to different vehicle models.

[0206] In some embodiments of the present application, as Figures 1 - 11 、 Figures 26 - 28 shown, the valve body assembly 200 may further include a mating valve 60. The mating valve 60 can be sleeved outside the overflow valve body 40. That is to say, the overflow valve body 40 can be located inside the mating valve 60. The mating valve 60 can be fixedly connected to the valve body assembly 30. As some alternative embodiments of the present application, the end of the mating valve 60 facing the valve body assembly 30 can be fixedly connected to the valve cover 34, and the mating valve 60 can be sleeved outside the first boss 341.

[0207] The mating valve 60, the valve body assembly 30, and the overflow valve body 40 can jointly define a first medium flow space 35. Among them, the overflow valve body 40 has an overflow valve medium passage 4231.

[0208] The overflow valve body 40 may have an overflow valve medium passage 4231. The first medium flow space 35 may communicate with the second medium passage 312 and the overflow valve medium passage 4231, and the overflow valve medium passage 4231 may communicate with the second medium passage 312. Specifically, the first medium flow space 35 may communicate with the fifth sub-medium passage 3122 of the second medium passage 312 and the overflow valve medium passage 4231, and the overflow 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 and the third medium passage 313.

[0209] It should be noted that when the electromagnetic assembly 50 operates, whether the electromagnetic assembly 50 reduces the opening degree of the first medium passage 201 or closes the first medium passage 201, the amount of the medium accumulated in the first medium flow space 35 is greater than the amount of the medium flowing away through the first medium flow space 35. That is to say, during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the restoration space 112, a large amount of the medium accumulates in the first medium flow space 35. At this time, since the first medium flow space 35 communicates with the second medium passage 312 and the overflow valve medium passage 4231, the medium flowing into the first medium flow space 35 through the fifth sub-medium passage 3122 of the second medium passage 312 can flow into the overflow valve medium passage 4231. Then, the medium flowing into the overflow 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 sequence to flow into the compression space 111. And the medium flowing from the overflow valve medium passage 4231 to the third medium passage 313 will accumulate on the side of the overflow valve body 40 facing the valve body assembly 30. Specifically, the medium flowing from the overflow valve medium passage 4231 to the third medium passage 313 will accumulate at the downstream position in the overflow valve medium passage 4231. The accumulated medium can apply a thrust 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 flow space 35 can flow away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree.

[0210] Such a setting can enable the shock absorber 100 to have three different working states during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the restoration space 112 when the electromagnetic assembly 50 operates. And the damping of the shock absorber 100 decreases sequentially with the change of the three different working states, so that the vehicle applying the shock absorber 100 proposed in this application can have a good shock absorption effect, which is beneficial to improving the riding experience of the passengers.

[0211] In some embodiments of the present application, such asFigures 1 - 6 As shown, a seal 36 may be provided on the outer side of the valve body assembly 30, and the seal 36 may be sealingly provided between the outer side wall of the valve body assembly 30 and the inner side wall of the accommodation space 11.

[0212] In some embodiments of the present application, as Figures 7 - 11 、 Figures 22 - 25 shown, the overflow valve medium passage 4231 may include a first overflow valve passage 421 and a second overflow valve passage 422. Among them, the first overflow valve passage 421 may communicate with the first medium flow space 35, the second overflow valve passage 422 may communicate with the second medium passage 312, and the first overflow valve passage 421 may selectively communicate with the second overflow valve passage 422.

[0213] Among them, it should be noted that the second overflow 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.

[0214] When the electromagnetic assembly 50 is working, and during the process of the valve body assembly 200 moving towards the restoration space 112 along the first direction of the shock absorber 100, a large amount of medium accumulates in the first medium flow space 35. At this time, since the first medium flow space 35 communicates with the first overflow valve passage 421, the medium in the first medium flow space 35 can flow into the first overflow valve passage 421. When the medium pressure in the first overflow valve passage 421 increases, the first overflow valve passage 421 communicates with the second overflow valve passage 422, and the medium in the first overflow valve passage 421 can flow into the second overflow valve passage 422. Since the second overflow valve passage 422 communicates with the second medium passage 312, the medium flowing into the second overflow 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 overflow valve passage 422 can sequentially 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 to flow into the compression space 111.

[0215] By setting the first overflow valve passage 421 and the second overflow valve passage 422 to selectively communicate, it can be ensured that the first overflow valve passage 421 and the second overflow valve passage 422 communicate only when the medium pressure in the first overflow valve passage 421 and the first medium flow space 35 reaches a certain amount. Thus, when the electromagnetic assembly 50 is working, and during the process of the valve body assembly 200 moving towards the restoration space 112 along the first direction of the shock absorber 100, the damping of the shock absorber 100 can be reduced as the medium accumulates, enabling the vehicle applying the shock absorber 100 proposed in the present application to have a good shock absorption effect, which is beneficial to improving the riding experience of the occupants.

[0216] In some embodiments of the present application, Figures 7 - 11 As shown, the valve body assembly 200 may also include a pilot valve 70, and the overflow valve medium passage 4231 may also include a first medium connecting port 423, the first medium connecting port 423 may connect the first overflow valve passage 421 and the second overflow valve passage 422, and the end of the pilot valve 70 close to the overflow valve body 40 is suitable for blocking the first medium connecting port 423.

[0217] As some optional embodiments of the present application, the pilot valve 70 can be located on the side of the overflow valve body 40 away from the valve body assembly 30, and the end of the pilot valve 70 close to the overflow valve body 40 can block the first medium connecting port 423 to isolate the first overflow valve passage 421 and the second overflow valve passage 422.

[0218] As some optional embodiments of the present application, at least a portion of the end of the pilot valve 70 blocking the first medium communication port 423 may be configured as a spherical surface.

[0219] As some optional embodiments of the present application, one end of the pilot valve 70 away from the overflow valve body 40 can be in contact with the dynamic magnetic component (i.e., the second magnetic component described above). After the electromagnetic assembly 50 is energized, since the first magnetic component is fixed relative to the second magnetic component, the second magnetic component will move toward the first magnetic component. When the second magnetic component moves, it will drive the pilot valve 70 to move, thereby driving the overflow valve body 40 to move closer to the valve body assembly 30.

[0220] It should be noted that the medium in the first overflow valve passage 421 can push the pilot valve 70 so that the pilot valve 70 moves away from the overflow valve body 40 (or moves in a direction away from the valve body assembly 30), thereby enabling the first overflow valve passage 421 and the second overflow valve passage 422 to be connected, thereby achieving selective connection between the first overflow valve passage 421 and the second overflow valve passage 422.

[0221] Specifically, when the electromagnetic assembly 50 is working, and during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 toward the recovery 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 relief valve passage 421. When the medium pressure 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 with 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.

[0222] By providing a pilot valve 70 and enabling the pilot valve 70 to block the first medium communication port 423, selective communication between the first overflow valve passage 421 and the second overflow valve passage 422 can be achieved. Moreover, the condition for enabling the first overflow valve passage 421 and the second overflow valve passage 422 to communicate is that the medium in the first overflow valve passage 421 can push the pilot valve 70 to move. Thus, when the electromagnetic assembly 50 is operating and the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the recovery space 112, as the medium accumulates, the damping of the shock absorber 100 can be reduced, enabling the vehicle equipped with the shock absorber 100 proposed in this application to have a good shock absorption effect, which is beneficial to improving the riding experience of the occupants.

[0223] In some embodiments of the present application, as Figures 7 - 11 、 Figures 22 - 25 shown, the first overflow valve passage 421 may include a first sub-overflow valve passage 4211, a second sub-overflow valve passage 4212, and a third sub-overflow valve passage 4213. Among them, the second sub-overflow valve passage 4212 may be connected between the first sub-overflow valve passage 4211 and the third sub-overflow valve passage 4213.

[0224] The first sub-overflow valve passage 4211 may communicate with the first medium flow space 35, and the third sub-overflow valve passage 4213 is adapted to communicate with the second overflow valve passage 422. Specifically, the third sub-overflow valve passage 4213 may communicate with the second overflow valve passage 422 through the first medium communication port 423.

[0225] When the electromagnetic assembly 50 is operating and the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the recovery space 112, a large amount of medium accumulates in the first medium flow space 35. The medium in the first medium flow space 35 can flow into the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213 in sequence. Moreover, the medium in the third sub-overflow valve passage 4213 can push the pilot valve 70 so that the pilot valve 70 moves away from the overflow valve body 40, enabling the first medium communication port 423 to communicate the first overflow valve passage 421 and the second overflow valve passage 422. Specifically, enabling the first medium communication port 423 to communicate the third sub-overflow valve passage 4213 of the first overflow valve passage 421 and the second overflow valve passage 422.

[0226] Among them, there is an angle between at least two of the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213. That is to say, the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213 are not in a structure where all three passages are parallel to each other. In other words, the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213 are in a criss-cross structure form.

[0227] As some alternative embodiments of the present application, both the first sub-overflow valve passage 4211 and the second sub-overflow valve passage 4212 can extend along a first direction (i.e., Figure 1 the X direction shown), and the third sub-overflow valve passage 4213 can extend along a second direction (i.e., Figure 1 the Y direction shown).

[0228] By constructing the first overflow valve passage 421 into three sub-passages and making the three sub-passages in a criss-cross structure form, the structure form of the first overflow valve passage 421 can be made reasonable, which is beneficial to making full use of the internal space of the overflow valve body 40, thereby reducing the volume of the overflow valve body 40, being beneficial to saving production costs, and being beneficial to saving the internal space of the shock absorber 100, thereby reducing the layout difficulty of other components of the shock absorber 100.

[0229] In some embodiments of the present application, as Figure 24 shown, the second sub-overflow valve passage 4212 can penetrate the overflow valve body 40 along the second direction of the shock absorber 100 (i.e., Figure 1 the Y direction shown), where the second direction is perpendicular to the first direction. By constructing the second sub-overflow valve passage 4212 into a structure form that penetrates the overflow valve body 40 along the second direction of the shock absorber 100, the construction difficulty of the second sub-overflow valve passage 4212 can be reduced, thereby reducing the production difficulty of the overflow valve body 40 and being beneficial to improving the production efficiency of the overflow valve body 40.

[0230] In some embodiments of the present application, as Figures 7 - 11 , Figures 22 - 25 shown, the overflow valve body 40 can have an overflow valve flange 43 extending towards the mating valve 60, and the overflow valve flange 43 and the mating valve 60 can jointly define a second medium flow space 44, where the second medium flow space 44 can communicate with the first overflow valve passage 421 and the second overflow valve passage 422.

[0231] Specifically, the inner side of the overflow valve flange 43 and the mating valve 60 can jointly define the second medium flow space 44, and the second medium flow space 44 can communicate between the first medium connection port 423 and the second overflow valve passage 422.

[0232] When the electromagnetic component 50 is operating and the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the restoration space 112, a large amount of medium accumulates in the first medium flow space 35. The medium in the first medium flow space 35 can flow into the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213 in sequence. Moreover, the medium in the third sub-overflow valve passage 4213 can push the pilot valve 70 so that the pilot valve 70 moves away from the overflow valve body 40 to open the first medium communication port 423. Then, the medium in the third sub-overflow valve passage 4213 can flow into the second medium flow space 44 through the first medium communication port 423, and the medium flowing into the second medium flow space 44 can flow into the second overflow valve passage 422.

[0233] Such a setting can connect the first overflow valve passage 421 and the second overflow valve passage 422 through the second medium flow space 44, making the passage structure of the overflow valve body 40 reasonable.

[0234] As some alternative embodiments of the present application, such as Figure 9 shown, the overflow valve flange 43 can be arranged outside the first flange 61 of the mating valve. Moreover, a first communication channel can be defined between the overflow valve flange 43 and the inner wall of the mating valve 60. The medium can flow from the first sub-overflow valve passage 4211 into the first communication channel and then from the first communication channel into the second sub-overflow valve passage 4212. That is to say, the first communication channel is connected between the second sub-overflow valve passage 4212 and the first sub-overflow valve passage 4211.

[0235] As some alternative embodiments of the present application, the overflow valve medium passage 42 can include a second communication channel. The second communication channel can be arranged to extend along the first direction, and the second communication channel can be connected between the second sub-overflow valve passage 4212 and the first communication channel. Specifically, the medium can flow from the first sub-overflow valve passage 4211 into the first communication channel, then from the first communication channel into the second communication channel, and then from the second communication channel into the second sub-overflow valve passage 4212. It should be noted that when the axial thickness (thickness in the first direction) of the overflow valve body 40 is relatively large, the second communication channel can be provided to facilitate the connection between the second sub-overflow valve passage 4212 and the first sub-overflow valve passage 4211.

[0236] In some embodiments of the present application, such as Figures 7 - 11As shown, the mating valve 60 may have a first flanging 61 of the mating valve extending towards the overflow valve body 40. The first flanging 61 of the mating valve and the overflow valve flanging 43 together form at least part of the side wall of the second medium flow space 44. Among them, both the overflow valve flanging 43 and the first flanging 61 of the mating valve can be annular flangings. The overflow valve flanging 43 can be located inside the first flanging 61 of the mating valve, or the overflow valve flanging 43 can be located outside the first flanging 61 of the mating valve, and the first flanging 61 of the mating valve and the overflow valve flanging 43 can be in guiding cooperation.

[0237] By making the first flanging 61 of the mating valve and the overflow valve flanging 43 together form at least part of the side wall of the second medium flow space 44, the space between the overflow valve body 40 and the mating valve 60 can be used to connect the first overflow valve passage 421 and the second overflow valve passage 422, which can make the design of the overflow valve body 40 delicate and reduce the design and manufacturing difficulty of the passages of the overflow valve body 40.

[0238] In some embodiments of the present application, as Figure 9 , Figures 22 - 24 shown, the first sub-overflow valve passage 4211 can be arranged on the outer side wall of the overflow valve body 40. It should be noted that the outer side wall of the overflow valve body 40 can be in guiding cooperation with the inner side wall of the mating valve 60. By arranging the first sub-overflow valve passage 4211 on the outer side wall of the overflow valve body 40, part of the side wall of the first sub-overflow valve passage 4211 can be formed by the overflow valve body 40, and the other part of the side wall of the first sub-overflow valve passage 4211 can be formed by the inner side wall of the mating valve 60. Such an arrangement can make the setting position of the first sub-overflow valve passage 4211 reasonable, and enable the medium in the first medium flow space 35 to flow smoothly into the first overflow valve passage 421.

[0239] In some embodiments of the present application, as Figures 7 - 11 , Figures 22 - 24 shown, the second overflow valve passage 422 can include: a fourth sub-overflow valve passage 4221 and a fifth sub-overflow valve passage 4222 that are interconnected. The fourth sub-overflow valve passage 4221 is adapted to communicate with the first overflow valve passage 421, the fifth sub-overflow valve passage 4222 can communicate with the second medium passage 312, and the flow area of the fifth sub-overflow valve passage 4222 can be larger than the flow area of the fourth sub-overflow valve passage 4221.

[0240] Among them, the fourth sub-overflow valve passage 4221 can be communicated with the third sub-overflow valve passage 4213 of the first overflow valve passage 421 through the first medium communication port 423. The fifth sub-overflow valve passage 4222 can be communicated between the fourth sub-overflow valve passage 4221 and the second medium passage 312. The fifth sub-overflow valve passage 4222 can be communicated with the third medium passage 313 through the second communication hole 3413 provided on the top wall of the valve cover 34, so as to communicate with the sixth sub-medium passage 3123 of the second medium passage 312.

[0241] When the electromagnetic assembly 50 is working, and during the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the recovery space 112, a large amount of medium accumulates in the first medium flow space 35. The medium in the first medium flow space 35 can flow into the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212 and the third sub-overflow valve passage 4213 in sequence. Moreover, the medium in the third sub-overflow valve passage 4213 can push the pilot valve 70, so that the pilot valve 70 moves away from the overflow valve body 40, and flows into the second medium flow space 44 through the first medium communication port 423. Then the medium can flow from the second medium flow space 44 into the fourth sub-overflow valve passage 4221 and the fifth sub-overflow valve passage 4222 in sequence, and then flows into the compression space 111 through the second medium passage 312.

[0242] It should be noted that the medium flowing from the first medium flow space 35 into the first overflow valve passage 421 and the second overflow valve passage 422 will accumulate at the fifth sub-overflow valve passage 4222. Since the flow area of the fifth sub-overflow valve passage 4222 is larger than that of the fourth sub-overflow valve passage 4221, the medium accumulated at the fifth sub-overflow valve passage 4222 can contact the bottom wall of the entity structure forming the fourth sub-overflow valve passage 4221. The medium accumulated at the fifth sub-overflow valve passage 4222 can apply a thrust towards the bottom wall of the entity structure forming the fourth sub-overflow valve passage 4221, so that the overflow valve body 40 moves away from the valve body assembly 30, so as 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 flows away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree.

[0243] Such a setting can enable the vehicle applying the shock absorber 100 proposed in the present application to have a good shock absorption effect, which is beneficial to improving the riding experience of the occupants.

[0244] In some embodiments of the present application, such as Figure 5 、 Figure 6 and Figure 11As shown, the electromagnetic assembly 50 is adapted to drive the overflow valve body 40 towards the valve body assembly 30 to reduce the opening degree of the first medium passage 201 or close the first medium passage 201, and the medium at the fifth sub-overflow valve passage 4222 is adapted to drive the overflow valve body 40 away from the valve body assembly 30 to increase the opening degree of the first medium passage 201 or open the first medium passage 201.

[0245] Specifically, when the electromagnetic assembly 50 operates, the electromagnetic assembly 50 can drive the overflow valve body 40 towards the valve body assembly 30 to reduce the opening degree of the first medium passage 201 or close the first medium passage 201. When the electromagnetic assembly 50 operates and the valve body assembly 200 moves towards the recovery space 112 along the first direction of the shock absorber 100, the medium in the recovery space 112 can flow into the first medium flow space 35 through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. Part of the medium in the first medium flow space 35 can flow into the third medium passage 313 through the first communication hole 3412. Part of the medium in the first medium flow space 35 can flow into the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213 in sequence. Moreover, the medium in the third sub-overflow valve passage 4213 can push the pilot valve 70 to make the pilot valve 70 move away from the overflow valve body 40, so as to flow into the second medium flow space 44 through the first medium communication port 423. Then the medium can flow from the second medium flow space 44 into the fourth sub-overflow valve passage 4221 and the fifth sub-overflow valve passage 4222 in sequence, and then flow into the compression space 111 through the second medium passage 312.

[0246] The medium flowing from the first medium flow space 35 into the first overflow valve passage 421 and the second overflow valve passage 422 will accumulate at the fifth sub-overflow valve passage 4222. Since the flow area of the fifth sub-overflow valve passage 4222 is larger than that of the fourth sub-overflow valve passage 4221, the medium accumulated at the fifth sub-overflow valve passage 4222 can contact the bottom wall of the entity structure forming the fourth sub-overflow valve passage 4221. The medium accumulated at the fifth sub-overflow valve passage 4222 can exert a thrust towards the bottom wall of the entity structure forming the fourth sub-overflow valve passage 4221 to make the overflow valve body 40 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, so that the medium accumulated in the first medium flow space 35 can flow away through the opened first medium passage 201 or the first medium passage 201 with an increased opening degree.

[0247] This setting enables the shock absorber 100 to have three different working states during the operation of the electromagnetic component 50 when the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the recovery space 112. Moreover, the damping of the shock absorber 100 decreases successively with the change of the three different working states, so that the vehicle applying the shock absorber 100 proposed in this application can have a good shock absorption effect, which is beneficial to improving the riding experience of the passengers.

[0248] As a specific embodiment of this application, taking the form that the first medium passage 201 is closed during the operation of the electromagnetic component 50 as an example, the working process of the shock absorber 100 proposed in this application will be specifically introduced below.

[0249] The shock absorber 100 proposed in this application has two working modes. One is that the electromagnetic component 50 does not work. When the electromagnetic component 50 does not work, under the action of the first elastic member 41, the first medium passage 201 is opened.

[0250] In the first working mode, when the valve body assembly 200 moves in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, and the volume of the recovery space 112 increases. The medium in the compression space 111 can flow into the first medium flow space 35 through the first sub-medium passage 3111.

[0251] Then, 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 in sequence from the third medium passage 313, so as to flow into the recovery space 112 from the third sub-medium passage 3113. Another part of the medium in the first medium flow space 35 flows into the first medium passage 201, then flows into the third medium passage 313 through the second communication hole 3413 opened on the top wall of the valve cover 34, and then flows into the second sub-medium passage 3112 and the third sub-medium passage 3113 in sequence from the third medium passage 313, so as to flow into the recovery space 112 from the third sub-medium passage 3113.

[0252] In the first working mode, when the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the rebound space 112, the volume of the rebound space 112 decreases, and the volume of the compression space 111 increases. The medium in the rebound space 112 can flow into the first medium flow space 35 through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. Then, 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 sixth sub-medium passage 3123 from the third medium passage 313, so as to flow into the compression space 111 from the sixth sub-medium passage 3123. Another part of the medium in the first medium flow space 35 flows into the first medium channel 201, then flows into the third medium passage 313 through the second communication hole 3413 opened on the top wall of the valve cover 34, and then flows into the sixth sub-medium passage 3123 from the third medium passage 313, so as to flow into the compression space 111 from the sixth sub-medium passage 3123.

[0253] In the second working mode, the electromagnetic assembly 50 works and the first medium channel 201 is closed. Specifically, when the electromagnetic assembly 50 works, the second magnetic part (which can be the magnetic core 80 described below) moves towards the mating valve 60. When the second magnetic part moves, it drives the pilot valve 70 to move towards the mating valve 60. When the pilot valve 70 moves towards the mating valve 60, it pushes the overflow valve body 40 to move, so as to close the first medium channel 201.

[0254] In the second working mode, when the valve body assembly 200 moves along the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, and the volume of the rebound space 112 increases. The medium in the compression space 111 can flow into the first medium flow space 35 through the first sub-medium passage 3111. Since the electromagnetic assembly 50 closes the first medium channel 201, the medium in the first medium flow space 35 can only flow 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 in sequence from the third medium passage 313, so as to flow into the rebound space 112 from the third sub-medium passage 3113. This is the Figure 4 Q1 stage shown.

[0255] At this time, the amount of the medium accumulated in the first medium flow space 35 is greater than the amount flowing away through the first medium flow space 35. That is to say, a large amount of the medium accumulates in the first medium flow space 35. The medium accumulated in the first medium flow space 35 will exert a thrust on 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 to enable the medium accumulated in the first medium flow space 35 to flow into the first medium passage 201, and then flow into the third medium passage 313 through the second communication hole 3413 opened on the top wall of the valve cover 34, and then sequentially flow into the second sub-medium passage 3112 and the third sub-medium passage 3113 from the third medium passage 313 to flow into the restoration space 112 from the third sub-medium passage 3113. This is Figure 6 the Q2 stage shown.

[0256] In the second working mode, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the restoration space 112, the volume of the restoration space 112 decreases and the volume of the compression space 111 increases. The medium in the restoration space 112 can flow into the first medium flow space 35 through the fourth sub-medium passage 3121 and the fifth sub-medium passage 3122. Since the electromagnetic assembly 50 closes the first medium passage 201, 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 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 Figure 7 and Figure 8 the Q3 stage shown.

[0257] Moreover, during the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the restoration space 112, a large amount of the medium accumulates in the first medium flow space 35. The medium in the first medium flow space 35 can sequentially flow into the first sub-overflow valve passage 4211, the second sub-overflow valve passage 4212, and the third sub-overflow valve passage 4213. Moreover, the medium in the third sub-overflow valve passage 4213 can push the pilot valve 70 to move the pilot valve 70 away from the overflow valve body 40 to open the first medium communication port 423. Then, the medium in the third sub-overflow valve passage 4213 can flow into the second medium flow space 44 through the first medium communication port 423. The medium flowing into the second medium flow space 44 can sequentially flow into the fourth sub-overflow valve passage 4221 and the fifth sub-overflow valve passage 4222, and then flow into the third medium passage 313 through the second communication hole 3413 opened on the top wall of the valve cover 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 Figure 9 and Figure 10 the Q4 stage shown.

[0258] Moreover, the medium flowing into the first overflow valve passage 421 and the second overflow valve passage 422 from the first medium flow space 35 accumulates at the fifth sub-overflow valve passage 4222. Since the flow area of the fifth sub-overflow valve passage 4222 is larger than that of the fourth sub-overflow valve passage 4221, the medium accumulated at the fifth sub-overflow valve passage 4222 can contact the bottom wall of the physical structure forming the fourth sub-overflow valve passage 4221, and the medium accumulated at the fifth sub-overflow valve passage 4222 can exert a thrust force towards the bottom wall of the physical structure forming the fourth sub-overflow valve passage 4221, so that the overflow valve body 40 moves in a direction away from the valve body assembly 30 to open the first medium passage 201. After the first medium passage 201 is opened, the medium in the first medium flow space 35 can flow into the first medium passage 201, and then flow into the third medium passage 313 through the second communication hole 3413 opened on the top wall of the valve cover 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 Figure 11 Q5 stage shown.

[0259] It should be noted that in actual use, the Q2 stage may instantaneously occur simultaneously with the Q1 stage, and there may not necessarily be an obvious time difference between the Q1 and Q2 stages. Similarly, there may not necessarily be an obvious time difference among the Q3, Q4, and Q5 stages. Moreover, the Q2 stage may be repeatedly performed within an extremely short time during use. Similarly, Q4 and Q5 may be repeatedly performed within an extremely short time during use.

[0260] Moreover, the Q4 and Q5 stages may exist simultaneously, or the Q4 stage may also be closed during the Q5 stage. All in all, how the multiple stages alternate or work simultaneously is closely related to the actual use conditions of the shock absorber.

[0261] In some embodiments of the present application, as Figure 28 shown, the middle position of the cooperation valve 60 may have a first convex portion 62 protruding towards the inside, and the inner side wall of the first convex portion 62 may cooperate with the outer side wall of the overflow valve body 40.

[0262] As some alternative embodiments of the present application, the outer side wall of the overflow valve body 40 may be in guiding cooperation with the inner side wall of the first convex portion 62 to make the movement direction of the overflow valve body 40 accurate. Moreover, the inner side wall of the first convex portion 62 can also limit the overflow valve body 40 to prevent the overflow valve body 40 from moving in the second direction.

[0263] As some alternative embodiments of the present application, the outer sidewall of the overflow valve body 40 can be hermetically fitted with the inner sidewall of the first convex portion 62 at the same time, so as to reduce the leakage of the medium through the gap between the outer sidewall of the overflow valve body 40 and the inner sidewall of the first convex portion 62.

[0264] As some alternative embodiments of the present application, by changing the protruding amount of the first convex portion 62 protruding inward, the contact area between the medium in the first medium flow space 35 and the overflow valve body 40 can be adjusted, so as to change the force required for the first medium passage 201 to open during the movement of the valve body assembly 200 toward the recovery space 112 along the first direction of the shock absorber 100 when the electromagnetic assembly 50 works.

[0265] In some embodiments of the present application, such as Figures 1 - 11 and Figure 28 shown, the end of the mating valve 60 close to the valve body assembly 30 can be fixedly connected to the valve body assembly 30. As some alternative embodiments of the present application, the end of the mating valve 60 close to the valve body assembly 30 can be welded to the valve cover 34 of the valve body assembly 30. The mating valve 60 defines a mating valve accommodation space 63, and the open end of the accommodation space can face the valve body assembly 30. Part of the structure of the valve body assembly 30 and the overflow valve body 40 can be located in the mating valve accommodation space 63. Specifically, part of the structure of the valve cover 34 and the overflow valve body 40 can be located in the mating valve accommodation space 63. Such a setting can make the setting positions of the components of the valve body assembly 200 reasonable, make the components in the valve body assembly 200 compact, be beneficial to saving the internal space of the shock absorber 100, and be beneficial to reducing the overall volume of the shock absorber 100.

[0266] Moreover, by making the end of the mating valve 60 close to the valve body assembly 30 can be fixedly connected to the valve body assembly 30, the mating valve 60 and the valve body assembly 30 can be fixedly connected together, so that the movement of the valve body assembly 200 can be stable, and the probability of interference of each component during the movement of the valve body assembly 200 can be reduced.

[0267] In addition, such a setting is beneficial to reducing the path length of the medium flow, beneficial to increasing the response rate of the shock absorber 100, and improving the service performance of the shock absorber 100.

[0268] In some embodiments of the present application, such as Figures 7 - 11 、 Figures 26 - 28As shown, the top wall of the mating valve 60 may have a first flanging 61 of the mating valve extending towards the overflow valve body 40, and the overflow valve body 40 may have an overflow valve flanging 43 extending towards the mating valve 60. The first flanging 61 of the mating valve and the overflow valve flanging 43 together constitute at least part of the side wall of the second medium flow space 44. Among them, both the overflow valve flanging 43 and the first flanging 61 of the mating valve can be annular flangings. The overflow valve flanging 43 can be located inside the first flanging 61 of the mating valve, or the overflow valve flanging 43 can be located outside the first flanging 61 of the mating valve, and the first flanging 61 of the mating valve and the overflow valve flanging 43 can be guidingly mated. It can be understood that the overflow valve body 40 can move in the first direction. Through the guiding mating of the first flanging 61 of the mating valve and the overflow valve flanging 43, the movement direction of the overflow valve body 40 can be made accurate, reducing the probability of the overflow valve body 40 getting stuck in the mating valve 60, thereby being beneficial to improving the use reliability of the shock absorber 100.

[0269] As some alternative embodiments of the present application, the first flanging 61 of the mating valve and the overflow valve flanging 43 are sealingly mated to reduce the leakage of the medium from the gap between the first flanging 61 of the mating valve and the overflow valve flanging 43.

[0270] In some embodiments of the present application, as Figures 26 - 28 shown, the top wall of the mating valve 60 may have a first relief hole 64, and the shock absorber 100 may further include a pilot valve 70. The pilot valve 70 may pass through the first relief hole 64, and one end of the pilot valve 70 close to the overflow valve body 40 is adapted to abut against the overflow valve body 40.

[0271] It should be noted that the overflow valve medium passage 4231 may further include a first medium communication port 423. The first medium communication port 423 may communicate the first overflow valve passage 421 and the second overflow valve passage 422. The end of the pilot valve 70 close to the overflow valve body 40 abuts against the overflow valve body 40 and blocks the first medium communication port 423.

[0272] As some alternative embodiments of the present application, one end of the pilot valve 70 away from the overflow valve body 40 may abut against the moving magnetic member (i.e., the second magnetic member described above), and the moving magnetic member is disposed on the side of the overflow valve body 40 away from the valve body assembly 30. After the electromagnetic assembly 50 is energized, since the first magnetic member is fixed relative to the second magnetic member, the second magnetic member will move towards the first magnetic member. When the second magnetic member moves, it will drive the pilot valve 70 to move, thereby being able to drive the overflow valve body 40 to move closer to the valve body assembly 30.

[0273] Since the overflow valve body 40 is arranged in the mating valve accommodation space 63, by providing a first avoidance hole 64 in the top wall of the mating valve 60, the pilot valve 70 can pass through the first avoidance hole 64 to contact the overflow valve body 40, so that the moving magnetic member can be driven to move the overflow valve body 40 by the electromagnetic assembly 50. Moreover, the inner side wall of the first avoidance hole 64 can be in guiding cooperation with the outer side wall of the pilot valve 70 to make the movement direction of the pilot valve 70 accurate. In addition, such an arrangement can make a part of the structure of the pilot valve 70 located in the mating valve accommodation space 63, can make the arrangement positions of the components of the valve body assembly 200 reasonable, and can make the components in the valve body assembly 200 compact, which is beneficial to saving the internal space of the shock absorber 100 and reducing the overall volume of the shock absorber 100.

[0274] In some embodiments of the present application, as Figures 1 - 11 , Figures 31 - 34 shown, the valve body assembly 200 may further include: a magnetic core 80. The electromagnetic assembly 50 can define an electromagnetic accommodation space 524, and at least a part of the magnetic core 80 can be arranged in the electromagnetic accommodation space 524. The pilot valve 70 can be located between the overflow valve body 40 and the magnetic core 80, and one end of the pilot valve 70 close to the magnetic core 80 can be in abutting contact with the magnetic core 80.

[0275] Wherein, after the electromagnetic assembly 50 is powered on, it can make the magnetic core 80 and the mating valve 60 generate an attractive force to move the magnetic core 80 and the mating valve 60 closer to each other. As some alternative embodiments of the present application, the mating valve 60 is stationary relative to the magnetic core 80. After the electromagnetic assembly 50 is powered on, the magnetic core 80 will move towards the mating valve 60. Since one end of the pilot valve 70 close to the magnetic core 80 is in abutting contact with the magnetic core 80, the magnetic core 80 will drive the pilot valve 70 to move when it moves, so as to drive the overflow valve body 40 to move closer to the valve body assembly 30. Such an arrangement can drive the overflow valve body 40 to move through the electromagnetic assembly 50, can realize the function of adjusting the opening degree of the first medium channel 201, so that the damping of the shock absorber 100 proposed in the present application can be adjusted. Moreover, by arranging at least a part of the magnetic core 80 in the electromagnetic accommodation space 524, the components in the valve body assembly 200 can be made compact, which is beneficial to saving the internal space of the shock absorber 100 and reducing the overall volume of the shock absorber 100.

[0276] In some embodiments of the present application, the materials of the mating valve 60 and the magnetic core 80 can both be magnetic materials. The electromagnetic assembly 50 can generate a magnetic force to cause an attractive force between the magnetic core 80 and the mating valve 60, so that the magnetic core 80 moves towards the mating valve 60, driving the overflow valve body 40 to move closer to the valve body assembly 30. Among them, the magnetic material can be, but is not limited to, No. 45 steel, iron, etc. By configuring the materials of 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, causing the magnetic core 80 and the mating valve 60 to attract each other, driving the overflow valve body 40 to move closer to the valve body assembly 30.

[0277] In some embodiments of the present application, as Figures 1 - 6 , Figures 31 - 34 shown, a first groove 81 can be provided at one end of the magnetic core 80 close to the mating valve 60. The valve body assembly 200 can further include a second elastic member 82. The second elastic member 82 can be disposed in the first groove 81, and the second elastic member 82 can abut between the bottom wall of the first groove 81 and the mating valve 60.

[0278] Among them, the first groove 81 can be open towards the mating valve 60. One end of the second elastic member 82 can abut against the bottom wall of the first groove 81, and the other end of the second elastic member 82 can abut against the top wall of the mating valve 60. As some alternative embodiments of the present application, the second elastic member 82 can be configured as a spring 322. The second elastic member 82 can be compressed between the bottom wall of the first groove 81 and the mating valve 60. When the electromagnetic assembly 50 is energized, the magnetic core 80 can move towards the mating valve 60 and compress the second elastic member 82. When the electromagnetic assembly 50 is de-energized, under the action of the second elastic member 82, the magnetic core 80 can move and reset in a direction away from the mating valve 60. Moreover, by providing the second elastic member 82, the movement of the magnetic core 80 can be made stable.

[0279] In some embodiments of the present application, as Figures 1 - 6 , Figures 31 - 34 shown, a second groove 83 can be provided at one end of the magnetic core 80 away from the mating valve 60. The valve body assembly 200 can further include a third elastic member 84. The third elastic member 84 can be disposed in the second groove 83, and the third elastic member 84 can abut between the bottom wall of the second groove 83 and the electromagnetic assembly 50 to suspend the magnetic core 80.

[0280] Among them, the second groove 83 can be open in a direction away from the mating valve 60. One end of the third elastic member 84 can abut against the bottom wall of the second groove 83, and the other end of the third elastic member 84 can abut against the electromagnetic assembly 50. As some alternative embodiments of the present application, the third elastic member 84 can be configured as a spring 322, and the third elastic member 84 can be compressed between the bottom wall of the second groove 83 and the electromagnetic assembly 50. Through the action of the second elastic member 82 and the third elastic member 84, the magnetic core 80 can be suspended, that is, the magnetic core 80 can be statically hovered. Such a setting can make the arrangement form of the magnetic core 80 reasonable. Whether the electromagnetic assembly 50 drives the magnetic core 80 to move towards the mating valve 60, or the medium drives the pilot valve 70 to move, or the medium drives the overflow valve body 40 and then drives the pilot valve 70 to move, the magnetic core 80 will not interfere with other components and hinder the movement, thereby improving the use reliability of the shock absorber 100.

[0281] In some embodiments of the present application, such as Figures 1 - 6 、 Figures 31 - 34 shown, the magnetic core 80 can be provided with a first pressure balance passage 85, and the first pressure balance passage 85 can communicate between the second groove 83 and the first groove 81. Among them, the first pressure balance passage 85 can be provided as one, or the first pressure balance passage 85 can also be provided as multiple. For example, the first pressure balance passage 85 can be provided as two. The first pressure balance passage 85 can communicate the second groove 83 and the first groove 81. It can be understood that when the magnetic core 80 moves in the first direction, the volumes of the first groove 81 and the second groove 83 will change, and during the use of the shock absorber 100, there will be media in both the first groove 81 and the second groove 83. By providing the first pressure balance passage 85, the pressures in the first groove 81 and the second groove 83 can be balanced to make the movement of the magnetic core 80 smooth.

[0282] In some embodiments of the present application, such as Figures 26 - 28 shown, the top wall of the mating valve 60 can be provided with a second pressure balance passage 65, and the second pressure balance passage 65 can communicate between the first groove 81 and the second medium flow space 44 defined by the mating valve 60 and the overflow valve body 40. Among them, the second pressure balance passage 65 can be provided as one, or the second pressure balance passage 65 can also be provided as multiple. For example, the second pressure balance passage 65 can be provided as four. The second pressure balance passage 65 can communicate the first groove 81 and the second medium flow space 44,

[0283] It can be understood that when the pilot valve 70 moves in the first direction, the volumes of the first groove 81 and the second medium flow space 44 will change, and during the use of the shock absorber 100, there will be a medium in both the first groove 81 and the second medium flow space 44. By providing the second pressure balance passage 65, the pressures in the first groove 81 and the second medium flow space 44 can be balanced, so as to make the movement of the pilot valve 70 smooth. Moreover, such a setting can make the second medium flow space 44, the first groove 81, and the second groove 83 communicate with each other, enabling the entire shock absorber 100 to work stably and reliably, which is beneficial to improving the reliability of use of the shock absorber 100.

[0284] In some embodiments of the present application, as Figures 26 - 28 shown, a part of the second pressure balance passage 65 can be configured as a part of the first avoidance hole 64. In other words, a plane is set, and this plane is perpendicular to the first direction of the shock absorber 100, that is to say, the normal line of this plane is parallel to the first direction of the shock absorber 100. The positive projection of the second pressure balance passage 65 on this plane and the positive projection of the first avoidance hole 64 on this plane have a partially overlapping area. Such a setting can reduce the manufacturing difficulty of the second pressure balance passage 65 and the first avoidance hole 64, which is beneficial to reducing the technological process of manufacturing the mating valve 60 (specifically, the second pressure balance passage 65 and the first avoidance hole 64 can be opened through one process), and is beneficial to improving the manufacturing efficiency of the mating valve 60.

[0285] In some embodiments of the present application, as Figures 1 - 6 , Figures 29 - 31 , Figure 33 and Figure 34 shown, a magnetic core guide post 86 extending towards the overflow valve body 40 can be provided in the first groove 81. One end of the pilot valve 70 close to the magnetic core 80 can be provided with a pilot mating groove 71. At least a part of the magnetic core guide post 86 is arranged in the pilot mating groove 71 and is in guiding cooperation with the side wall of the pilot mating groove 71.

[0286] Specifically, the open end of the pilot mating groove 71 faces the magnetic core 80, and the pilot mating groove 71 is sleeved outside 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 can be in clearance guiding cooperation with the inner side wall of the pilot mating groove 71. Such a setting can provide guidance 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, reducing the probability of the pilot valve 70 getting stuck during movement, and improving the reliability of use of the shock absorber 100.

[0287] In some embodiments of the present application, as Figures 1 - 6 , Figure 29 and Figure 30As shown, the second elastic member 82 can be sleeved outside the magnetic core guide post 86 or can be sleeved outside the pilot valve 70.

[0288] In other words, as some alternative embodiments of the present application, the second elastic member 82 can be sleeved outside the magnetic core guide post 86 and can be located within the pilot fitting groove 71. As some alternative embodiments of the present application, the second elastic member 82 can be sleeved outside the pilot valve 70 and can be located outside the pilot fitting groove 71. Such an arrangement can enable the second elastic member 82 to have multiple installation 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.

[0289] As some alternative embodiments of the present application, the second elastic member 82 can be sleeved outside the pilot valve 70 and can be located outside the pilot fitting groove 71. Such an arrangement is beneficial to increasing the fitting area between the inner side wall of the pilot fitting valve 60 and the outer side wall of the magnetic core guide post 86, and is beneficial to improving the accuracy of the movement direction of the pilot valve 70.

[0290] In some embodiments of the present application, as Figures 26 - 28 shown, the fitting valve 60 can have a second flanging 66 of the fitting valve extending towards the magnetic core 80. Specifically, the top wall of the fitting valve 60 can have a second flanging 66 of the fitting valve extending towards the magnetic core 80, and the outer side wall of the magnetic core 80 is adapted to be in guiding fit with the inner side wall of the second flanging 66 of the fitting valve. As some alternative embodiments of the present application, the first groove 81 of the magnetic core 80 can be sleeved outside the second flanging 66 of the fitting valve, and the inner side wall of the first groove 81 can be in guiding fit with the outer side wall of the second flanging 66 of the fitting valve.

[0291] As some alternative embodiments of the present application, a part of the structure of the magnetic core 80 can be located inside the second flanging 66 of the fitting valve, and the outer side wall of the magnetic core 80 can be in guiding fit with the inner side wall of the second flanging 66 of the fitting valve. Such an arrangement can make the movement direction of the magnetic core 80 precise, reduce the probability of the magnetic core 80 getting stuck, and is beneficial to improving the use reliability of the shock absorber 100.

[0292] In some embodiments of the present application, as Figures 1 - 6 、 Figure 35 and Figure 36 shown, the valve body assembly 200 can further include: a magnetic isolation member 90, and the magnetic isolation member 90 can be located between the fitting valve 60 and the electromagnetic assembly 50. Among them, the material of the magnetic isolation member 90 can be any magnetic isolation material, and the magnetic isolation member 90 does not conduct magnetism. The present application does not limit this.

[0293] By providing the magnetic isolation member 90, positioning can be provided for the mating valve 60 and the electromagnetic assembly 50, so that the installation positions of the mating valve 60 and the electromagnetic assembly 50 are accurate. Moreover, by providing the magnetic isolation member 90, most of the magnetic lines of force generated by the electromagnetic assembly 50 can act on the magnetic core 80, so that an attractive force is generated between the magnetic core 80 and the mating 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.

[0294] In some embodiments of the present application, such as Figures 1 - 6 , Figure 35 and Figure 36 shown, a first mating groove 93 can be provided on the side of the magnetic isolation member 90 close to the mating valve 60, and the second flange 66 of the mating valve can be arranged in the first mating groove 93. The first mating groove 93 opens towards the mating valve 60.

[0295] As some alternative embodiments of the present application, a part of the second flange 66 of the mating valve can be arranged in the first mating groove 93, or the entire structure of the second flange 66 of the mating valve can be arranged in the first mating groove 93, and the second flange 66 of the mating valve and the first mating groove 93 can be sealingly mated. By arranging the second flange 66 of the mating valve in the first mating groove 93, the magnetic isolation member 90 and the mating valve 60 can be positioned through the second flange 66 of the mating valve and the first mating groove 93, so that the positioning of the magnetic isolation member 90 and the mating valve 60 is accurate. Such an arrangement is beneficial to reducing the assembly difficulty of the shock absorber 100 and improving the assembly efficiency of the shock absorber 100.

[0296] In some embodiments of the present application, such as Figures 1 - 6 , Figure 35 and Figure 36 shown, a second mating groove 94 can be provided on the side of the magnetic isolation member 90 close to the electromagnetic assembly 50, and a part of the electromagnetic assembly 50 can be arranged in the second mating groove 94. The second mating groove 94 opens in a direction away from the mating valve 60.

[0297] As some alternative embodiments of the present application, the electromagnetic assembly 50 can include a magnetic core cover 52. The magnetic core cover 52 can be sleeved outside the magnetic core 80, and the end of the magnetic core cover 52 close to the magnetic isolation member 90 can be arranged in the second mating groove 94. As some alternative embodiments of the present application, a boss structure 521 can be provided at the end of the magnetic core cover 52 close to the magnetic isolation member 90. The boss structure 521 can be arranged in the second mating groove 94 and abutted against the second mating groove 94. The outer side wall of the boss structure 521 can be in interference fit with the inner side wall of the second mating groove 94 to prevent liquid leakage. Such an arrangement can position the electromagnetic assembly 50 through the magnetic isolation member 90, so that the positioning of the magnetic isolation member 90 and the electromagnetic assembly 50 is accurate, and it is beneficial to reducing the assembly difficulty of the shock absorber 100 and improving the assembly efficiency of the shock absorber 100.

[0298] In some embodiments of the present application, such as Figures 1 - 6 , Figure 35 and Figure 36 shown, the magnetic isolation member 90 may have a second avoidance hole 95, and the magnetic core 80 may pass through the second avoidance hole 95. It should be noted that by providing the second avoidance hole 95 on the magnetic isolation member 90, the magnetic core 80 can be avoided, so that the end of the magnetic core 80 close to the mating valve 60 can be located within the second flange 66 of the mating valve, and the outer sidewall of the magnetic core 80 can be in guiding cooperation with the inner sidewall of the second avoidance hole 95. Such a setting can further ensure the accuracy of the movement direction of the magnetic core 80.

[0299] As some alternative embodiments of the present application, the inner sidewall of the second avoidance hole 95 and the inner sidewall of the second flange 66 of the mating valve are coplanar. Such a setting can reduce the probability of interference between the magnetic core 80 and other components during movement, which is beneficial to improving the working reliability of the shock absorber 100.

[0300] In some embodiments of the present application, such as Figures 1 - 6 , Figure 43 , Figure 44 , Figure 47 and Figure 48 shown, the electromagnetic assembly 50 may further include: a magnetic core cover 52, the magnetic core cover 52 can define an electromagnetic accommodation space 524, at least a part of the magnetic core 80 can be arranged in the electromagnetic accommodation space 524, and the outer sidewall of the magnetic core 80 is adapted to be in guiding cooperation with the inner sidewall of the magnetic core cover 52. As some alternative embodiments of the present application, the material of the magnetic core cover 52 can be a material capable of conducting magnetic lines of force, such as iron. That is to say, the magnetic core cover 52 can be constructed as an iron core cover.

[0301] By arranging at least a part of the magnetic core 80 in the electromagnetic accommodation space 524 and making the outer sidewall of the magnetic core 80 in guiding cooperation with the inner sidewall of the magnetic core cover 52, the accuracy of the movement direction of the magnetic core 80 can be further ensured. And when the electromagnetic assembly 50 is energized, the magnetic lines of force generated by the electromagnetic assembly 50 can be conducted through the magnetic core cover 52 to form a stronger magnetic force and act on the magnetic core 80, so that an attractive force is generated between the magnetic core 80 and the mating valve 60, thereby reliably achieving the effect of driving the magnetic core 80 to move towards the valve body assembly 30 through the electromagnetic assembly 50.

[0302] In some embodiments of the present application, such as Figures 1 - 6 , Figure 43 , Figure 44 , Figure 47 and Figure 48As shown, one end of the magnetic core cover 52 away from the mating valve 60 may have a second convex portion 523 protruding inward, and one end of the magnetic core 80 away from the mating valve 60 may have a first concave portion 87 recessed inward. Among them, the side wall of the first concave portion 87 may cooperate with the side wall of the second convex portion 523.

[0303] It should be noted that the inner side wall of one end of the magnetic core cover 52 close to the mating valve 60 may be in guiding cooperation with the outer side wall of one end of the magnetic core 80 close to the mating valve 60. One end of the magnetic core cover 52 away from the mating valve 60 may have a second convex portion 523 protruding inward, and one end of the magnetic core 80 away from the mating valve 60 may have a first concave portion 87 recessed inward. The side walls of the second convex portion 523 and the first concave 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. Such a setting can make the cooperation between the magnetic core cover 52 and the magnetic core 80 reasonable, further ensure the accuracy of the movement direction of the magnetic core 80, thereby further reducing the probability of the magnetic core 80 getting stuck. Moreover, such a setting can ensure the smooth movement of the magnetic core 80, which is beneficial to improving the use reliability of the shock absorber 100.

[0304] In some embodiments of the present application, as Figures 1 - 6 , Figure 38 , Figure 39 , Figures 46 - 48 shown, the electromagnetic assembly 50 may further include a coil bracket 53. Among them, the coil of the electromagnetic assembly 50 may be wound around the coil bracket 53. The coil bracket 53 may have a bracket space 531 that is open toward the mating valve 60, and at least a part of the magnetic core cover 52 may be disposed in the bracket space 531.

[0305] Among them, the coil bracket 53 may be sleeved on the outside of the magnetic core cover 52, and the coil of the electromagnetic assembly 50 may be wound around the outside of the coil bracket 53. By providing the coil bracket 53, an installation position can be provided for the coil of the electromagnetic assembly 50, and an installation position can be provided for the magnetic core cover 52. As some alternative embodiments of the present application, along the first direction, the top wall of the magnetic core cover 52 may be provided with a second boss 522 protruding away from the magnetic core 80, and the second boss 522 may be used to position the coil bracket 53. As some alternative embodiments of the present application, the coil bracket 53 may be provided with a space that cooperates with the second boss 522. The space that cooperates with the second boss 522 may communicate with the bracket space 531. By cooperating the second boss 522 with this space, the second boss 522 can be used to position the coil bracket 53.

[0306] In some embodiments of the present application, as Figure 38 , Figure 39 , Figures 46 - 48As shown, the coil bracket 53 may have a wire groove 532 for placing the coil. The electromagnetic assembly 50 may further include a bracket cover 54. The bracket cover 54 may be disposed on a side of the coil bracket 53 away from the mating valve 60 and connected to the coil bracket 53, and the bracket cover 54 may cover at least part of the wire groove 532.

[0307] Wherein, the coil of the electromagnetic assembly 50 may be wound around the outside of the coil bracket 53, and a part of the coil may be placed in the wire groove 532. Along the first direction, the bracket cover 54 may be disposed on a side of the coil bracket 53 away from the mating valve 60, and the bracket cover 54 may be connected to the coil bracket 53. As some alternative embodiments of the present application, the bracket cover 54 may be connected to the coil bracket 53 by a snap connection, and the bracket cover 54 may cover at least part of the wire groove 532. By providing the wire groove 532 for placing the coil on the coil bracket 53, a part of the coil can be received in the wire groove 532, which can make the arrangement of the coil neat. Moreover, by covering at least part of the wire groove 532 with the bracket cover 54, protection can be provided for the coil received in the wire groove 532 to improve the reliability of use of the electromagnetic assembly 50.

[0308] As some alternative embodiments of the present application, as Figure 38 、 Figure 39 、 Figures 46 - 48 shown, the coil bracket 53 may include a bracket body 534 and an extension portion 535. Both the bracket body 534 and the extension portion 535 may have the wire groove 532. The shape of the bracket cover 54 may be adapted to the shape of the extension portion 535, and the bracket cover 54 may cover at least part of the wire groove 532 of the extension portion 535 and at least part of the wire groove 532 of the bracket body 534.

[0309] In some embodiments of the present application, as Figures 38 - 41 、 Figures 46 - 48 shown, the coil bracket 53 may have a mounting post 533 extending along the first direction. Specifically, the coil bracket 53 may have a mounting post 533 extending along the first direction and away from the valve body assembly 30. The mounting post 533 may have the wire groove 532. The bracket cover 54 may have a mating portion 541. The mating portion 541 may be sleeved on the outside of the mounting post 533. The mating portion 541 may block at least part of the wire groove 532 of the mounting post 533, and the mating portion 541 may have a first notch 5411. By providing the first notch 5411, the mating portion 541 can be easily sleeved on the outside of the mounting post 533, and a part of the coil may be located at the first notch 5411.

[0310] As some alternative embodiments of the present application, the wire grooves 532 of the coil bracket 53 may be two, and both ends of the coil may be respectively placed through the two wire grooves 532 of the coil bracket 53 and pass through the first notch 5411.

[0311] Such a setting can facilitate the arrangement of the coil, is beneficial to reducing the assembly difficulty of the coil assembly, and is beneficial to improving the assembly efficiency of the coil assembly.

[0312] In some embodiments of the present application, as Figures 1 - 6 , Figures 44 - 48 shown, the electromagnetic assembly 50 may further include a metal cap 55. The metal cap 55 may be disposed on a side of the coil bracket 53 away from the mating valve 60. The metal cap 55 may have a second notch 551. At least a part of the bracket cover 54 may be located in the second notch 551. The metal cap 55 may be in contact with the magnetic core cover 52.

[0313] Specifically, along the first direction, the metal cap 55 may be disposed on a side of the coil bracket 53 away from the mating valve 60, and the metal cap 55 may be configured as an annular structure with a second notch 551, that is to say, an annular structure lacking a part of the structure. In other words, a plane is set, and this plane is perpendicular to the first direction. The orthographic projection of the metal cap 55 on this plane is substantially "C"-shaped. The coil bracket 53 may include an extension 535 having a wire groove 532. The extension 535 may be located in the second notch 551. As some alternative embodiments of the present application, the metal cap 55 is substantially "C"-shaped, and both ends of the "C"-shaped notch may be in contact with the extension 535. And the mounting post 533 of the coil bracket 53 may pass through the metal cap 55. Along the first direction, the metal cap 55 may be in contact with the magnetic core cover 52.

[0314] When the electromagnetic assembly 50 is energized, the magnetic lines of force generated by the electromagnetic assembly 50 can be conducted through the magnetic core cover 52 and the metal cap 55 to form a stronger magnetic force and act on the magnetic core 80, so that an attractive force is generated between the magnetic core 80 and the mating valve 60, thereby reliably achieving the effect of driving the magnetic core 80 to move towards the valve body assembly 30 through the electromagnetic assembly 50. By providing the metal cap 55 and making the metal cap 55 in contact with the magnetic core cover 52, the magnetic lines of force generated by the electromagnetic assembly 50 can be enhanced, which is beneficial to increasing the attractive force between the magnetic core 80 and the mating valve 60.

[0315] It should be explained 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 to move. In other words, the shock absorber 100 proposed in the present application may adopt electromagnetic assemblies 50 with different structural forms, as long as the electromagnetic assembly 50 can realize driving the magnetic core 80 to move towards the mating valve 60.

[0316] In some embodiments of the present application, asFigures 1 - 6 , Figure 49 As shown in Figure 49 , the valve body assembly 200 may further include a piston 20. The piston 20 may be fixedly connected to the mating valve 60. The piston 20 may define an installation space 21. At least part of the structure of the mating valve 60 and the electromagnetic assembly 50 may be disposed within the installation space 21.

[0317] Wherein, the piston 20 may define an installation space 21 with one end open. The mating valve 60 may be located at the open end of the installation space 21. And, one end of the piston 20 close to the mating valve 60 may be connected to the mating valve 60. Specifically, the mating valve 60 may be located at the open end of the installation space 21 and close the installation space 21.

[0318] As some alternative embodiments of the present application, as Figure 28 and Figure 49 shown, the outer sidewall of the mating valve 60 may have an external thread 67. The inner sidewall of the installation space 21 may have an internal thread 22 capable of mating with the external thread 67. And, the internal thread 22 may be provided on the inner sidewall of the installation space 21 close to the mating valve 60. By the mating of the external thread 67 and the internal thread 22, the piston 20 and the mating valve 60 may be fixedly connected. And, part of the structure of the mating valve 60 may be located within the installation space 21. And, the mating valve 60 may close the open end of the installation space 21. The electromagnetic assembly 50 and the magnetic isolation member 90 may both be disposed within the installation space 21.

[0319] As some alternative embodiments of the present application, as Figures 1 - 6 shown, a sealing ring 91 may be provided between the magnetic isolation member 90 and the inner sidewall of the installation space 21. As some alternative embodiments of the present application, the sidewall of the magnetic isolation member 90 may be provided with a sealing groove 92 recessed inward. At least part of the sealing ring 91 may be disposed within the sealing groove 92.

[0320] As some alternative embodiments of the present application, the side of the metal cap 55 facing away from the magnetic core cover 52 may be in abutting contact with the inner wall surface of the piston 20.

[0321] As some alternative embodiments of the present application, as Figure 49 shown, the piston 20 may have a mating hole 23. The second boss 522 of the magnetic core cover 52 may be disposed within the mating hole 23 for positioning.

[0322] As some alternative embodiments of the present application, the shock absorber 100 proposed in the present application can be applied to a vehicle. When the vehicle jolts, the piston 20 is subjected to force and moves in a first direction. Since the piston 20 is fixedly connected to the cooperating valve 60, the movement of the piston 20 will drive the cooperating valve 60 to move. Moreover, since the cooperating valve 60 is fixedly connected to the valve body assembly 30, the movement of the cooperating valve 60 will drive the valve body assembly 30 to move. Additionally, since the electromagnetic assembly 50 is disposed in the installation space 21, the piston 20 can drive the electromagnetic assembly 50 to move together when it moves. Thus, the piston 20 can drive the valve body assembly 200 to move in the first direction. By providing the piston 20, the electromagnetic assembly 50, the cooperating valve 60, the valve body assembly 30, and the overflow valve body 40 can be connected as a whole. Therefore, when the piston 20 moves, the valve body assembly 200 can move synchronously, which is beneficial to ensuring the working reliability of the shock absorber 100.

[0323] In some embodiments of the present application, as Figures 1 - 6 shown, 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 an accommodation 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.

[0324] As Figures 1 - 6 shown, the shock absorber 100 may further include a valve bottom assembly 15. The valve bottom assembly 15 may be located on the side of the valve body assembly 30 away from the overflow valve body 40. The compression space 111 may be selectively communicated with the liquid storage space 14 through the valve bottom assembly 15. As some alternative embodiments of the present application, the valve bottom assembly 15 may be located on the side of the valve body assembly 30 away from the overflow valve body 40 and connected to the end of the first housing 12, and the valve bottom assembly 15 may seal the end of the first housing 12.

[0325] During the movement of the valve body assembly 200 in the first direction of the shock absorber 100 towards the compression space 111, the volume of the compression space 111 decreases, the volume of the recovery space 112 increases, the medium in the compression space 111 can flow into the recovery space 112 through the first medium passage 311, and the medium in the compression space 111 can flow into the liquid storage space 14 through the valve bottom assembly 15.

[0326] During the movement of the valve body assembly 200 along the first direction of the shock absorber 100 towards the restoration space 112, the volume of the restoration space 112 decreases, the volume of the compression space 111 increases, the medium in the restoration space 112 can flow into the compression space 111 through the second medium passage 312, and moreover, the medium in the liquid storage space 14 can flow into the compression space 111 through the valve bottom assembly 15. Such a setting can make the shock absorber 100 configured as a twin-tube shock absorber 100, which is beneficial to improving the use reliability of the shock absorber 100, and is also beneficial to making the operation of the shock absorber 100 stable.

[0327] As some alternative embodiments of the present application, the valve body 33, the valve cover 34, the overflow valve body 40, the mating valve 60, the magnetic core 80, the magnetic core cover 52, the magnetic isolation member 90, and the coil bracket 53 can all be configured as rotating body structures.

[0328] The shock absorber 100 proposed in the present application has a simple structure, is convenient to manufacture, has a low cost, is easy to tune, and can simultaneously enable the vehicle to have a good shock absorption effect under different road conditions.

[0329] According to the vehicle of the embodiment of the present invention, including the shock absorber 100 of the above embodiment, the shock absorber 100 of the present application can drive the overflow valve body 40 to move according to actual needs to adjust the opening degree of the first medium passage 201, so that the damping of the shock absorber 100 can be adjusted according to actual needs, can meet various road conditions, and is beneficial to improving the riding experience of the passengers.

[0330] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0331] In the description of the present invention, the "first feature" and the "second feature" may include one or more of such features.

[0332] In the description of the present invention, the meaning of "a plurality" is two or more.

[0333] In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0334] In the description of the present invention, "above", "over" and "on" a second feature for a first feature include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher level of height than the second feature.

[0335] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0336] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shock absorber, It is characterized in that include: A housing, wherein the housing defines a containing space, and a medium is contained in the containing space; A valve body assembly, the valve body assembly is arranged in the accommodating space, and the valve body assembly comprises a valve body component, a relief valve body and an electromagnetic component; The valve body assembly divides the accommodating space into a compression space and a recovery space, the relief valve body and the electromagnetic assembly are both located in the recovery space, the relief valve body is located between the electromagnetic assembly and the valve body assembly to form a first medium channel between the relief valve body and the valve body assembly, and the electromagnetic assembly is suitable for driving the relief valve body to move close to the valve body assembly to adjust the opening of the first medium channel; The valve body assembly has a medium passage, the compression space is selectively connected to the recovery space through the medium passage, the valve body assembly is suitable for moving in the housing along the first direction of the shock absorber to change the volume of the compression space and the recovery space, when the volume of the compression space changes, the compression space is connected to the recovery space through the medium passage, or is connected to the first medium channel through the medium passage; The medium passage includes a first medium passage and a second medium passage, the medium in the compression space is suitable for flowing into the recovery space through the first medium passage, and the medium in the recovery space is suitable for flowing into the compression space through the second medium passage, wherein both the first medium passage and the second medium passage are provided with a one-way valve.

2. The vibration absorber according to claim 1, It is characterized in that The medium is suitable for driving the relief valve body to move away from the valve body assembly to adjust the opening of the first medium channel.

3. The vibration absorber according to claim 1, It is characterized in that The first medium passage includes: a first sub-medium passage, a second sub-medium passage and a third sub-medium passage, the second sub-medium passage is connected between the first sub-medium passage and the third sub-medium passage, the first medium passage is connected to the compression space, the third sub-medium passage is connected to the recovery space, and the first sub-medium passage and the third sub-medium passage are both one-way passages.

4. The vibration absorber according to claim 3, It is characterized in that The one-way valve is disposed in both the first sub-medium passage and the third sub-medium passage.

5. The vibration absorber according to claim 3, It is characterized in that The third sub-medium passage is arranged on the outer side wall of the valve body assembly.

6. The vibration absorber according to claim 5, It is characterized in that The second medium passage includes: a fourth sub-medium passage, a fifth sub-medium passage and a sixth sub-medium passage, the fifth sub-medium passage is connected between the fourth sub-medium passage and the sixth sub-medium passage, the fourth sub-medium passage is connected to the recovery space, the sixth sub-medium passage is connected to the compression space, and the fifth sub-medium passage and the sixth sub-medium passage are both one-way passages.

7. The vibration absorber according to claim 6, It is characterized in that The one-way valve is disposed in both the fifth sub-medium passage and the sixth sub-medium passage.

8. The vibration absorber according to claim 6, It is characterized in that The fourth sub-medium passage is arranged on the outer side wall of the valve body assembly, and a first communication passage is connected between the fourth sub-medium passage and the fifth sub-medium passage, and an angle is formed between the first communication passage and the fourth sub-medium passage and / or the fifth sub-medium passage.

9. The vibration absorber according to claim 6, It is characterized in that The medium passage further includes: a third medium passage, the third medium passage is connected between the first sub-medium passage and the second sub-medium passage, and the third medium passage is connected between the fifth sub-medium passage and the sixth sub-medium passage.

10. The vibration absorber according to claim 9, It is characterized in that The valve body assembly includes a valve body and a valve cover, the valve cover is located between the valve body and the overflow valve body and is fixed to the valve body, a portion of the first medium passage, a portion of the second medium passage, and a portion of the third medium passage are all arranged on the valve body, and another portion of the first medium passage, another portion of the second medium passage, and another portion of the third medium passage are all arranged on the valve cover.

11. The vibration absorber according to claim 10, It is characterized in that The valve cover has a first boss protruding toward the overflow valve body, the first boss is a hollow structure, the hollow portion of the first boss is configured as part of the third medium passage, and the side wall of the first boss is provided with at least one first connecting hole, the first connecting hole connects the first sub-medium passage and the third medium passage, and the first connecting hole connects the fifth sub-medium passage and the third medium passage.

12. The vibration absorber according to claim 11, It is characterized in that The valve body assembly also includes: a matching valve, which is sleeved on the outside of the relief valve body and fixedly connected to the valve body assembly, the matching valve, the valve body assembly and the relief valve body jointly define a first medium circulation space, the first sub-medium passage and the fifth sub-medium passage both penetrate the valve cover along the first direction, the first medium circulation space communicates with the first connecting hole and the first sub-medium passage, and the first medium circulation space communicates with the first connecting hole and the fifth sub-medium passage.

13. The vibration absorber according to claim 12, It is characterized in that The electromagnetic assembly is suitable for driving the overflow valve body to move toward the valve body assembly to reduce the opening of the first medium channel or close the first medium channel, 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 to increase the opening of the first medium channel or open the first medium channel.

14. The vibration absorber according to claim 13, It is characterized in that The top wall of the first boss has at least one second communicating hole, and the second communicating hole communicates the third medium passage and the first medium channel.

15. The vibration absorber according to any one of claims 1 to 14, It is characterized in that The valve body assembly also includes: a first elastic member, the overflow valve body has an overflow valve guide column extending toward the valve body assembly, the first elastic member is sleeved on the overflow valve guide column and stops between the overflow valve body and the valve body assembly, and the first elastic member is suitable for driving the overflow valve body to move away from the valve body assembly to open the first medium channel or increase the opening of the first medium channel.

16. The vibration absorber according to any one of claims 1 to 14, It is characterized in that The valve body assembly also includes: a matching valve, which is sleeved on the outside of the overflow valve body and fixedly connected to the valve body assembly, the matching valve, the valve body assembly and the overflow valve body jointly define a first medium flow space, the overflow valve body has an overflow valve medium passage, the first medium flow space is connected to the second medium passage and the overflow valve medium passage, and the overflow valve medium passage is connected to the second medium passage.

17. The vibration absorber according to claim 16, It is characterized in that The overflow valve medium passage includes a first overflow valve passage and a second overflow valve passage, the first overflow valve passage is communicated with the first medium flow space, the second overflow valve passage is communicated with the second medium passage, and the first overflow valve passage is selectively communicated with the second overflow valve passage.

18. The vibration absorber according to claim 17, It is characterized in that The valve body assembly also includes: a pilot valve, and the relief valve medium passage also includes: a first medium communication port, the first medium communication port connects the first relief valve passage and the second relief valve passage, and the end of the pilot valve close to the relief valve body is suitable for blocking the first medium communication port.

19. The vibration absorber according to claim 17, It is characterized in that The first overflow valve passage includes: a first sub-overflow valve passage, a second sub-overflow valve passage, and a third sub-overflow valve passage, the second sub-overflow valve passage is connected between the first sub-overflow valve passage and the third sub-overflow valve passage, the first sub-overflow valve passage is connected to the first medium flow space, and the third sub-overflow valve passage is suitable for connecting to the second overflow valve passage, wherein there is an angle between at least two of the first sub-overflow valve passage, the second sub-overflow valve passage, and the third sub-overflow valve passage.

20. The vibration absorber according to claim 19, It is characterized in that The second sub-relief valve passage penetrates the relief valve body along a second direction of the shock absorber, wherein the second direction is perpendicular to the first direction.

21. The vibration absorber according to claim 19, It is characterized in that The overflow valve body has an overflow valve flange extending toward the matching valve, and the overflow valve flange and the matching valve together define a second medium flow space, and the second medium flow space is connected to the first overflow valve passage and the second overflow valve passage.

22. The vibration absorber according to claim 21, It is characterized in that The matching valve has a matching valve first flange extending toward the overflow valve body, and the matching valve first flange and the overflow valve flange are jointly configured to form at least a partial side wall of the second medium flow space.

23. The vibration absorber according to claim 20, It is characterized in that The first sub-relief valve passage is provided on an outer side wall of the relief valve body.

24. The vibration absorber according to claim 17, It is characterized in that The second overflow valve passage includes: a fourth sub-overflow valve passage and a fifth sub-overflow valve passage that are interconnected, the fourth sub-overflow valve passage is suitable for being connected to the first overflow valve passage, the fifth sub-overflow valve passage is connected to the second medium passage, and the flow area of ​​the fifth sub-overflow valve passage is greater than the flow area of ​​the fourth sub-overflow valve passage.

25. The vibration absorber according to claim 24, It is characterized in that The electromagnetic assembly is suitable for driving the overflow valve body to move toward the valve body assembly to reduce the opening of the first medium channel or close the first medium channel, and the medium at the fifth sub-overflow valve passage is suitable for driving the overflow valve body to move away from the valve body assembly to increase the opening of the first medium channel or open the first medium channel.

26. The vibration absorber according to claim 16, It is characterized in that The middle portion of the matching valve has a first protrusion protruding toward the inside, and the inner side wall of the first protrusion matches with the outer side wall of the overflow valve body.

27. The vibration absorber according to claim 16, It is characterized in that The end of the matching valve close to the valve body assembly is fixedly connected to the valve body assembly, and the matching valve defines a matching valve accommodating space, and part of the valve body assembly and the overflow valve body are both located in the matching valve accommodating space.

28. The vibration absorber according to claim 27, It is characterized in that The top wall of the matching valve has a matching valve first flange extending toward the relief valve body, and the relief valve body has a relief valve flange extending toward the matching valve, and the relief valve flange is suitable for guiding and matching with the matching valve first flange.

29. The vibration absorber according to claim 16, It is characterized in that The top wall of the matching valve has a first avoidance hole, and the shock absorber also includes a pilot valve, which is penetrated by the first avoidance hole and one end of the pilot valve close to the overflow valve body is suitable for abutting against the overflow valve body.

30. The vibration absorber according to claim 29, It is characterized in that The valve body assembly also includes: a magnetic core, the electromagnetic component defines an electromagnetic accommodating space, at least a portion of the magnetic core is arranged in the electromagnetic accommodating space, the pilot valve is located between the overflow valve body and the magnetic core, and the pilot valve is close to the end of the magnetic core and stops against the magnetic core.

31. The vibration absorber according to claim 30, It is characterized in that The matching valve and the magnetic core are both made of magnetic materials, and the electromagnetic assembly can generate magnetic force to generate attraction between the magnetic core and the matching valve, so that the magnetic core moves toward the matching valve, thereby driving the overflow valve body to move closer to the valve body assembly.

32. The vibration absorber according to claim 30, It is characterized in that A first groove is provided at one end of the magnetic core close to the matching valve. The valve body assembly also includes a second elastic member, which is provided in the first groove and abuts between the bottom wall of the first groove and the matching valve.

33. The vibration absorber according to claim 32, It is characterized in that A second groove is provided at one end of the magnetic core away from the matching valve. The valve body assembly also includes a third elastic member, which is provided in the second groove and abuts between the bottom wall of the second groove and the electromagnetic component to suspend the magnetic core.

34. The vibration absorber according to claim 33, It is characterized in that The magnetic core is provided with a first pressure balance passage, and the first pressure balance passage is connected between the second groove and the first groove.

35. The vibration absorber according to claim 32, It is characterized in that A second pressure balance passage is provided on the top wall of the matching valve, and the second pressure balance passage is communicated between the first groove and a second medium flow space defined by the matching valve and the overflow valve body.

36. The vibration absorber according to claim 35, It is characterized in that A portion of the second pressure balance passage is configured as a portion of the first avoidance hole.

37. The vibration absorber according to claim 32, It is characterized in that A magnetic core guide column extending toward the overflow valve body is provided in the first groove, and a pilot matching groove is provided at one end of the pilot valve close to the magnetic core. At least a portion of the magnetic core guide column is provided in the pilot matching groove and is guided and matched with the side wall of the pilot matching groove.

38. The vibration absorber according to claim 37, It is characterized in that The second elastic member is sleeved on the outside of the magnetic core guide column or on the outside of the pilot valve.

39. The vibration absorber according to claim 30, It is characterized in that The matching valve has a matching valve second flange extending toward the magnetic core, and the outer side wall of the magnetic core is suitable for guiding and matching with the inner side wall of the matching valve second flange.

40. The vibration absorber according to claim 39, It is characterized in that The valve body assembly further includes: a magnetic isolation member, wherein the magnetic isolation member is located between the matching valve and the electromagnetic component.

41. The vibration absorber according to claim 40, It is characterized in that A first matching groove is provided on a side of the magnetic isolation member close to the matching valve, and the second flange of the matching valve is provided in the first matching groove.

42. The vibration absorber according to claim 40, It is characterized in that A second matching groove is provided on a side of the magnetic isolation member close to the electromagnetic assembly, and a portion of the electromagnetic assembly is provided in the second matching groove.

43. The vibration absorber according to claim 40, It is characterized in that The magnetic isolation component has a second avoidance hole, and the magnetic core is passed through the second avoidance hole.

44. The vibration absorber according to claim 30, It is characterized in that The electromagnetic assembly comprises: a magnetic core cover, the magnetic core cover defines the electromagnetic accommodating space, and the outer side wall of the magnetic core is suitable for guiding and cooperating with the inner side wall of the magnetic core cover.

45. The vibration absorber according to claim 44, It is characterized in that The end of the magnetic core cover away from the matching valve has a second protrusion protruding inward, and the end of the magnetic core away from the matching valve has a first recessed portion recessed inward, and the side wall of the first recessed portion matches the side wall of the second protrusion.

46. ​​The vibration absorber according to claim 44, It is characterized in that The electromagnetic assembly further comprises: a coil support, the coil of the electromagnetic assembly is wound around the coil support, the coil support has a support space open toward the matching valve, and at least a part of the magnetic core cover is arranged in the support space.

47. The vibration absorber according to claim 46, It is characterized in that The coil support has a wire groove for placing the coil, and the electromagnetic assembly also includes a support cover, which is arranged on a side of the coil support away from the matching valve and connected to the coil support, and the support cover covers at least part of the wire groove.

48. The vibration absorber according to claim 47, It is characterized in that The coil support has a mounting post extending along a first direction, the support cover has a matching portion, the matching portion is sleeved on the outside of the mounting post, and the matching portion has a first notch, and part of the coil is located in the first notch.

49. The vibration absorber according to claim 47, It is characterized in that The electromagnetic assembly also includes: a metal cap, which is arranged on a side of the coil support away from the matching valve, and the metal cap has a second notch, at least a portion of the support cover is located in the second notch, and the metal cap is in contact with the magnetic core cover.

50. The vibration absorber according to claim 16, It is characterized in that The valve body assembly further includes a piston, the piston is fixedly connected to the matching valve, the piston defines an installation space, and at least part of the matching valve and the electromagnetic component are both arranged in the installation space.

51. A vibration absorber according to any one of claims 1 to 14, It is characterized in that The shell includes a first shell and a second shell, the second shell is sleeved in the first shell, the first shell defines the accommodating space, the second shell and the first shell together define a liquid storage space, the shock absorber also includes a valve bottom assembly, the valve bottom assembly is located on the side of the valve body assembly away from the overflow valve body, and the compression space is selectively connected to the liquid storage space through the valve bottom assembly.

52. A vehicle, It is characterized in that Comprising a vibration absorber according to any one of claims 1-51.

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