Shock absorber capable of recycling automobile vibration energy

Abstract

The invention relates to the technical field of shock absorbers, in particular to a shock absorber for recycling automobile vibration energy, which comprises a shock absorption mechanism, an adjusting mechanism and a heat energy recycling mechanism, the shock absorption mechanism comprises a cylinder a, a piston rod, a piston assembly and a base assembly, and the piston assembly is slidably arranged on the inner side of the cylinder a; the piston rod is connected with the piston assembly; the base assembly is connected to the inner wall of the cylinder a; the adjusting mechanism comprises a cylinder b, a stretching assembly, a permanent magnet and a magnetic isolation sheet; the two magnetic isolating sheets are connected to the two side faces of the permanent magnet. A plurality of permanent magnets are arranged on the outer side of the cylinder b in a sleeving manner; the stretching assembly is connected with the permanent magnet; the heat energy recovery mechanism comprises a cylinder c, a spiral blade, a water tank and a pump body; spiral blades are arranged on the surface of the cylinder b; the water tank is arranged on the surface of the cylinder c; the pump body is communicated with the barrel b and the water tank. The damping force of the whole vibrator can be adjusted in a multi-stage mode, and the vibrator is suitable for various road sections; and meanwhile, heat generated by the magnetorheological fluid can be recycled, and the energy loss of the vibrator is reduced.

Description

Technical Field

[0001] This invention relates to the field of vibration damper technology, and more specifically to a vibration damper that recovers vibration energy from automobiles. Background Technology

[0002] The shock absorber is a core component of the vehicle's suspension system. Its main function is to suppress spring oscillation, absorb road impacts, and ensure the stability and comfort of the vehicle.

[0003] Chinese patent CN105156552B discloses a shock absorber capable of recovering vibration energy. By adjusting the nut, the preload of the flow valve spring and the extension valve spring can be changed, effectively controlling the flow rate of the magnetic fluid through the valve port, making the damper damping adjustable. In addition, the energy generated by vehicle body vibration can be recovered and utilized through a simple power generation system, which is an effective exploration of vibration utilization and has guiding significance for generating electricity using mechanical vibration.

[0004] However, the existing technology has the following drawbacks: the adjustment range of the preload of the flow valve spring and the extension valve spring is very limited, resulting in a very limited adjustment of the damping force of the entire shock absorber, which cannot adapt to road surfaces with greater complexity; in addition, the existing technology can only recover part of the vibration energy and cannot recover the heat energy generated by the vibrator. Since 70%-90% of the vibration energy of the shock absorber is converted into heat energy, the heat generated by the vibrator in the above technology can only be naturally dissipated into the external environment, resulting in a great loss of energy. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a vibration damper that recovers vibration energy from automobiles.

[0006] The technical solution of the present invention: a shock absorber for recovering vibration energy from automobiles, comprising:

[0007] A vibration damping mechanism includes a cylinder a, a piston rod, a sleeve, a baffle, a piston assembly, a base assembly, and a spring a; the piston assembly is slidably disposed inside the cylinder a; the piston rod passes through the top end of the cylinder a and is connected to the piston assembly; the base assembly is connected to the inner wall of the cylinder a; an outlet is provided on the cylinder a; the sleeve is rotatably connected to the base; a plate a is connected to the top end of the cylinder a; a plate b is connected to the piston rod; and the two ends of the spring a are respectively connected to plate a and plate b.

[0008] The adjustment mechanism includes a cylinder b, an extension assembly, a permanent magnet, and a magnetic shielding sheet; the cylinder b is connected to the outside of the cylinder a; two magnetic shielding sheets are provided and connected to the two sides of the permanent magnet; multiple permanent magnets are provided and sleeved on the outside of the cylinder b; the lowest permanent magnet is connected to the cylinder b; the extension assembly is connected to the permanent magnet.

[0009] The heat energy recovery mechanism comprises a cylinder c, a spiral blade, a water tank, a pump body, a pipe a and a pipe b; the cylinder c is arranged outside the cylinder b; the spiral blade is arranged on the surface of the cylinder b; the water tank is arranged on the surface of the cylinder c; the pump body is communicated with the cylinder b through the pipe a; the inside of the water tank is provided with two plates c, which divide the inside of the water tank into a cold water area and a hot water area; the pipe b is arranged in the hot water area and communicated with the pump body; the pipe b is connected with the plate c; the two ends of the pipe b are provided with electromagnetic valves a and b.

[0010] Preferably, a sleeve is arranged on the sleeve; the sleeve penetrates through the cylinder a and is rotationally connected with the cylinder a; one end of the sleeve is connected with a generator, which is used for converting part of vibration energy into electric energy.

[0011] Preferably, the plate b and the bottom end of the cylinder a are both connected with lifting rings; the bottom end of the lifting ring on the cylinder a is provided with a groove, which is used for accommodating the generator.

[0012] Preferably, the piston assembly and the base assembly are the same in structure and symmetrically arranged; the piston assembly and the base assembly both comprise a block, a spring b, a plate d and a plate e; the two side surfaces of the block are provided with grooves; the spring b is arranged in the groove; the plate d and the plate e are arranged on the two sides of the block and connected with the spring b.

[0013] Preferably, the inside of the block is provided with a hole a and a hole b; the plate d is used for shielding the hole a; the plate e is used for shielding the hole b.

[0014] Preferably, the stretching assembly comprises a telescopic part, a cross part and a triangular part; the cross part is provided with a plurality of cross parts and rotationally connected with each other; the triangular part is provided with two permanent magnets rotationally connected with the most two sides; the triangular part is rotationally connected with the cross part; the telescopic part is arranged on the plate a and the output end thereof is connected with the uppermost permanent magnet.

[0015] Preferably, the cross part is composed of a rod a and a rod b; the rod a and the rod b are cross-rotationally arranged and the cross part is rotationally connected with the permanent magnet; the rod a and the rod b are rotationally connected between the adjacent cross parts; the triangular part comprises two rods c; the two rods c are cross-arranged in a triangular shape and the cross part is rotationally connected with the permanent magnet; the two rods c are rotationally connected with the rod a and the rod b.

[0016] Preferably, a pipe c is connected with the pipe a; the pipe c extends to the seat heating system and communicated with the cold water area in the water tank through a pipe d; the pipe c is provided with an electromagnetic valve c.

[0017] Preferably, the plate a is connected with a displacement sensor; the displacement sensor is used for monitoring the change of vibration amplitude; the outside of the piston rod is sleeved with a dust cover, which is used for dustproofing the piston rod.

[0018] Compared with the prior art, the above technical scheme of the present application has the following beneficial technical effects:

[0019] By being provided with the damping mechanism, the magnetorheological fluid is stored in the inner part of the cylinder a, and the damping and buffering functions can be realized by continuously extruding the magnetorheological fluid by the piston movement of the piston assembly.

[0020] By being provided with the adjusting mechanism, the multiple permanent magnets can be moved equidistantly, the number of permanent magnets in the damping area of the cylinder a can be increased or decreased, the damping force of the magnetorheological fluid can be adjusted in multiple stages, the damping force of the whole vibrator can be adjusted in multiple stages, and the vibrator is convenient to apply to multiple road sections.

[0021] By being provided with the heat energy recycling mechanism, the heat generated by the magnetorheological fluid can be recycled and used for seat heating, the heat output of the seat heating system is reduced, and then the consumption of the battery power of the automobile is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of an embodiment of the present application;

[0023] Figure 2 It is a structure schematic view of a water tank in an embodiment of the present application;

[0024] Figure 3 It is a cross-sectional structure schematic view of a water tank in an embodiment of the present application;

[0025] Figure 4 It is a perspective view of the cylinder c in a cross-sectional state in an embodiment of the present application;

[0026] Figure 5 It is a perspective view of the cylinder c and the cylinder b in a cross-sectional state in an embodiment of the present application;

[0027] Figure 6 It is a connection structure schematic view of the adjusting mechanism and the permanent magnet in an embodiment of the present application;

[0028] Figure 7 It is a cross-sectional structure schematic view of the cylinder a in an embodiment of the present application;

[0029] Figure 8 It is a structure schematic view of the plate d and the plate e separated from the block in an embodiment of the present application;

[0030] Figure 9 It is a cross-sectional structure schematic view of the block in an embodiment of the present application.

[0031] Reference numerals: 1. Cylinder c; 2. Water tank; 201. Hot water zone; 202. Cold water zone; 3. Pump body; 4. Plate a; 5. Displacement sensor; 6. Telescopic component; 7. Spring a; 8. Plate b; 9. Lifting ring; 10. Dust cover; 11. Pipe a; 12. Pipe b; 13. Plate c; 14. Solenoid valve a; 15. Solenoid valve b; 16. Cylinder a; 1601. Outlet; 17. Spiral blade; 18. Permanent magnet; 19. Magnetic shielding sheet; 20. Rod a; 21. Rod b; 22. Rod c; 23. Block; 24. Cylinder b; 25. Plate d; 26. Plate e; 27. Baffle; 28. Piston rod; 29. ​​Sleeve; 30. Generator; 31. Spring b; 32. Pipe c; 33. Pipe d; 34. Impeller; 35. Hole a; 36. Hole b. Detailed Implementation

[0032] Example 1, as Figures 1-5 and Figures 7-9 As shown, the present invention proposes a shock absorber for recovering vehicle vibration energy, comprising a shock absorption mechanism, an adjustment mechanism, and a heat energy recovery mechanism;

[0033] The damping mechanism comprises a cylinder a16, a piston rod 28, a sleeve 29, a baffle 27, a piston assembly, a base assembly and a spring a7; the piston assembly is slidably arranged inside the cylinder a16; the piston rod 28 penetrates the top end of the cylinder a16 and is connected with the piston assembly; the base assembly is connected to the inner wall of the cylinder a16 (near the bottom end of the cylinder a16); an outlet 1601 is formed on the cylinder a16, and the cylinder a16 contains a magneto-rheological fluid; the outlet 1601 is configured to allow the magneto-rheological fluid in the cylinder a16 to enter the inside of the cylinder b24; the sleeve 29 is rotatably connected with the base; the sleeve 29 is provided with an impeller 34; the sleeve 29 penetrates the cylinder a16 and is rotatably connected with the cylinder a16; one end of the sleeve 29 is connected with a generator 30; when the magneto-rheological fluid in the cylinder a16 flows, the impeller 34 is driven to rotate, the sleeve 29 is driven to rotate by the impeller 34, and the rotor of the generator is driven to rotate by the sleeve 29, so as to convert part of vibration energy into electric energy, thereby facilitating charging of the battery (this is an existing charging technology, and the function of the generator 30 is simply described here); the top end of the cylinder a16 is connected with a plate a4; the piston rod 28 is connected with a plate b8, and the two ends of the spring a7 are connected to the plate a4 and the plate b8 respectively, so that the spring a7 can support and dampen vibration; the plate b8 and the bottom end of the cylinder a16 are both connected with a lifting ring 9; a groove is formed at the bottom end of the lifting ring 9 on the cylinder a16, for accommodating the generator 30; the piston assembly and the base assembly are the same in structure and symmetrically arranged; both the piston assembly and the base assembly comprise a block 23, a spring b31, a plate d25 and a plate e26; recesses are formed on the two side surfaces of the block 23; the spring b31 is arranged in the recess; the plate d25 and the plate e26 are arranged on the two sides of the block 23 and connected with the spring b31; a hole a35 and a hole b36 are formed in the block 23; the plate d25 is used for shielding the hole a35; the plate e26 is used for shielding the hole b36; a circular hole is formed on the plate d25 and aligned with the hole b36; a circular hole is formed on the plate e26 and aligned with the hole a35.

[0034] It should be noted that when the piston rod 28 drives the piston assembly to move downward, the magneto-rheological fluid in the cylinder a16 is squeezed, so that the hydraulic pressure of the magneto-rheological fluid gradually increases; when the hydraulic pressure is large enough, the spring b31 is stretched (the spring b31 in the upper part of the block 23 in the piston assembly and the spring b31 in the lower part of the block 23 in the base assembly, refer to Figure 8) so that the plate e26 is away from the block 23, the magnetorheological fluid passes through the hole b36 in the block 23 in the piston assembly into the space below the baffle 27, while the magnetorheological fluid passes through the hole b36 in the block 23 in the base assembly and the opening on the cylinder a16 into the cylinder c1, under the guide of the helical blade 17, the magnetorheological fluid spirally rises, which plays a certain stirring effect on the magnetorheological fluid, facilitating the heat dissipation of the magnetorheological fluid, while the helical blade 17 is made of a material with good thermal conductivity, which can absorb part of the heat of the magnetorheological fluid and conduct the heat to the cold water inside the cylinder b24 through the cylinder b24, helping the magnetorheological fluid to dissipate heat; when the piston rod 28 moves up, the internal space of the cylinder a16 increases and the pressure decreases, so that most of the magnetorheological fluid inside the cylinder c1 flows back to the inside of the cylinder a16 (a small amount of magnetorheological fluid will still be stored in the cylinder c1), under the impact force of the magnetorheological fluid, the spring b is stretched (the spring b31 below in the block 23 in the piston assembly and the spring b31 above in the block 23 in the base assembly, refer to Figure 8 ), at this time the plate d25 in the base assembly is separated from the block 23, and the magnetorheological fluid flows back to the inside of the cylinder a16 through the hole a35; the plate d25 in the piston assembly is also separated from the block 23, so that the magnetorheological fluid below the baffle 27 flows back to the inside of the cylinder a16 through the hole a35, so that the shock absorber realizes damping and buffering effect.

[0035] It should be noted that the magnetorheological fluid is a Newtonian fluid in the absence of a magnetic field and flows freely; when a magnetic field is applied, the particles in the magnetorheological fluid are magnetized and form chain / cylindrical structure, resulting in an increase in apparent viscosity of the fluid (similar to solid), and a significant increase in damping force (response time is only a few milliseconds).

[0036] By adding thixotropic agent (such as fumed silica) and nano-coated particles (such as SiO2 coated Fe3O4) to the magnetorheological fluid, the phenomenon of particle precipitation in the magnetorheological fluid in the long-term idle state can be avoided, and the performance degradation caused by oxidation can be avoided.

[0037] The adjusting mechanism includes the cylinder b24, the stretching assembly, the permanent magnet 18 and the magnetic shielding sheet 19; the cylinder b24 is connected outside the cylinder a16; the magnetic shielding sheet 19 is provided with two pieces and is connected to the two sides of the permanent magnet 18, which can make the magnetic field generated by the permanent magnet 18 distribute along the diameter direction of the cross section of the cylinder a16; the permanent magnet 18 is provided with multiple and is sleeved outside the cylinder b24; the lowermost permanent magnet 18 is connected with the cylinder b24; the stretching assembly is connected with the permanent magnet 18; the plate a4 is connected with the displacement sensor 5; for monitoring the change of vibration amplitude; the outer side of the piston rod 28 is sleeved with the dust cover 10, which is used for dustproof effect on the piston rod 28.

[0038] It should be noted that the extension assembly controls the equidistance change of the permanent magnets 18, controls the number of the permanent magnets 18 existing in the damping area inside the cylinder a16 (the space between the piston assembly and the base assembly before the vibrator vibrates), and further controls the magnetic field strength, so as to control the size of the magnetorheological fluid damping force, and further control the damping force of the whole shock absorber.

[0039] The displacement sensor 5 can monitor the vibration amplitude by monitoring the moving distance of the plate b8. When the displacement sensor 5 monitors that the moving distance of the plate b8 is greater than a threshold value, it indicates that the compression distance of the piston assembly exceeds the normal value. At this time, the displacement sensor 5 feeds back to the external controller, and the external controller controls the extension assembly to work, enhances the magnetic field strength in the damping area inside the cylinder a16, and further increases the damping force of the magnetorheological fluid, so as to enhance the damping force of the vibrator.

[0040] The heat energy recovery mechanism includes a cylinder c1, a spiral blade 17, a water tank 2, a pump body 3, a pipe a11 and a pipe b12; the cylinder c1 is arranged outside the cylinder b24; the spiral blade 17 is arranged on the surface of the cylinder b24; the water tank 2 is arranged on the surface of the cylinder c1; the pump body 3 is communicated with the cylinder b24 through the pipe a11, and the pump body 3 includes but is not limited to being mounted on the water tank 2, and can be independently mounted away from the vibrator according to needs; two plates c13 are arranged inside the water tank 2, so as to divide the water tank 2 into a cold water area 202 and a hot water area 201; the pipe b12 is arranged in the hot water area 201 and communicated with the pump body 3; the pipe b12 is connected with the plate c13; the pipe b12 is provided with an electromagnetic valve a14 and an electromagnetic valve b15 at two ends; the pipe a11 is connected with a pipe c32; the pipe c32 extends to the seat heating system and communicated with the cold water area 202 in the water tank 2 through a pipe d33; the pipe c32 is provided with an electromagnetic valve c; and the pipe a11 is provided with an electromagnetic valve d.

[0041] It should be noted that the pump body 3 is a dual-purpose pump; a temperature sensor is arranged inside the cylinder b24 for monitoring the water temperature; when the water temperature reaches a threshold value (the threshold value is 80-100℃ lower than the critical temperature of the permanent magnet 18, the permanent magnet 18 includes but is not limited to neodymium iron boron, and the magnetic decay of the neodymium iron boron can be restored and the magnetic decay is about 5% after being affected by not more than the critical temperature, which has a small influence), the temperature sensor feeds back to the external controller, the external controller controls the pump body 3 to work and opens the electromagnetic valve a14 at the same time, uses the pipe a11 to pump out the hot water inside the cylinder b24, uses the pipe b12 to deliver the hot water to the hot water area 201 for storage, then closes the electromagnetic valve a14 and opens the electromagnetic valve b15, uses the pump body 3 to pump out the cold water in the cold water area 202 to the inside of the cylinder b24, and continues to absorb the heat of the magnetorheological fluid.

[0042] It is worth noting that the inner wall of the hot water zone 201 of the water tank 2 is equipped with a heat-insulating coating to keep the hot water warm. In summer, the hot water can flow back to the cold water zone 202 through pipe b12 for natural heat dissipation. In winter, the hot water can be transported to the heat-insulating zone for heat preservation. The hot water in the hot water zone 201 is then transported to the seat heating system by pump 3 to heat the seats, reducing the heat energy required by the seat heating system. After heat exchange, the hot water flows back to the cold water zone 202 through pipe d33, reducing the loss of battery power.

[0043] Example 2, as Figure 6 As shown, this invention proposes a shock absorber for recovering automotive vibration energy. Compared to Embodiment 1, this embodiment further details the structure of the extension assembly. The extension assembly includes a telescopic component 6, a cross section, and a triangular section. The cross section has multiple components that are rotatably connected to each other. The triangular section has two permanent magnets 18 located on the outermost sides and rotatably connected. The triangular section is rotatably connected to the cross section. The telescopic component 6 is located on plate a4 and its output end is connected to the uppermost permanent magnet 18. The telescopic component 6 includes, but is not limited to, devices such as cylinders. The cross section is composed of rods a20 and b21. Rods a20 and b21 are rotatably arranged and intersecting at the point where they are rotatably connected to the permanent magnets 18. Rods a20 and b21 are rotatably connected between adjacent cross sections. The triangular section includes two rods c22. The two rods c22 intersect in a triangular shape and are rotatably connected to the permanent magnets 18 at the intersection. The two rods c22 are rotatably connected to rods a20 and b21 respectively.

[0044] It should be noted that when the telescopic component 6 moves the uppermost permanent magnet 18 upward, the uppermost permanent magnet 18 moves the triangular intersection upward, reducing the included angle at the intersection of rods c22. At the same time, rod c22 drives rods a20 and b21 to rotate, reducing the included angle between rods a20 and b21. This achieves the function of moving the permanent magnets 18 upward at equal intervals, reducing the number of permanent magnets 18 in the damping area of ​​cylinder a16, and weakening the magnetic field in the damping area. Conversely, when the telescopic component 6 moves the uppermost permanent magnet 18 downward, the number of permanent magnets 18 in the damping area of ​​cylinder a16 increases, and the magnetic field in the damping area is strengthened.

[0045] It is worth noting that the number of permanent magnets 18 at the damping area of the cylinder a16 is determined by the length of the extension or shortening of the output end of the telescopic component 6, which is determined by the difference between the moving distance of the plate b8 monitored by the displacement sensor 5 and the normal value range. If the normal value range is [a-b], the moving distance of the plate b8 is s, and the moving distance of the plate b8 exceeds the normal value range by s-b, the greater the value of s-b, the more permanent magnets 18 need to be added at the damping area of the cylinder a16. Conversely, if the moving distance of the plate b8 is less than the normal value range by a-s, the greater the value of a-s, the more permanent magnets 18 need to be reduced at the damping area of the cylinder a16.

[0046] In summary, when the piston rod 28 drives the piston assembly to move downward, it will squeeze the magnetorheological fluid inside the cylinder a16, so that the hydraulic pressure of the magnetorheological fluid gradually increases. When the hydraulic pressure is large enough, the spring b31 is stretched (the spring b31 above in the block 23 in the piston assembly and the spring b31 below in the block 23 in the base assembly, refer to Figure 8 ) so that the plate e26 moves away from the block 23, and the magnetorheological fluid enters the space below the baffle 27 through the hole b36 in the block 23 in the piston assembly. At the same time, the magnetorheological fluid enters the cylinder c1 through the hole b36 in the block 23 in the base assembly and the opening on the cylinder a16. Under the guidance of the spiral blade 17, the magnetorheological fluid spirally rises, which plays a certain stirring role on the magnetorheological fluid, facilitates heat dissipation of the magnetorheological fluid, and at the same time, the spiral blade 17 is made of a material with good thermal conductivity, which can absorb part of the heat of the magnetorheological fluid and conduct the heat to the cold water inside the cylinder b24 through the cylinder b24, helping the magnetorheological fluid to dissipate heat; when the piston rod 28 moves upward, the space inside the cylinder a16 increases and the pressure decreases, so that most of the magnetorheological fluid inside the cylinder c1 flows back to the inside of the cylinder a16 (a small amount of magnetorheological fluid will still remain in the cylinder c1), which makes the spring b be stretched (the spring b31 below in the block 23 in the piston assembly and the spring b31 above in the block 23 in the base assembly, refer to Figure 8 ) under the impact force of the magnetorheological fluid. At this time, the plate d25 in the base assembly is separated from the block 23, and the magnetorheological fluid flows back to the inside of the cylinder a16 through the hole a35; the plate d25 in the piston assembly is also separated from the block 23, so that the magnetorheological fluid below the baffle 27 flows back to the inside of the cylinder a16 through the hole a35, so that the shock absorber realizes damping and buffering effect.

[0047] During the flow of the magnetorheological fluid in the cylinder a16, the impeller 34 is rotated, the impeller 34 drives the rotor of the generator 30 to rotate, which is used to convert part of the vibration energy into electrical energy, facilitating charging of the battery; at the same time, the rotation of the impeller 34 can stir the magnetorheological fluid in the cylinder a16, facilitating heat dissipation of the magnetorheological fluid.

[0048] The heat generated by the magnetorheological fluid is absorbed by the cold water inside the cylinder b24; when the water temperature reaches a threshold value (the threshold value is 80-100℃ lower than the critical temperature of the permanent magnet 18), the temperature sensor feeds back to the external controller, the external controller controls the pump body 3 to work while opening the electromagnetic valve a14, and the hot water inside the cylinder b24 is pumped out through the pipe a11 and then transported to the hot water area 201 through the pipe b12 for storage; then the electromagnetic valve a14 is closed and the electromagnetic valve b15 is opened, and the cold water in the cold water area 202 is pumped out to the inside of the cylinder b24 by the pump body 3 to continue to absorb the heat of the magnetorheological fluid, realizing the function of heat recovery during the vibration of the vibrator; when the seat heating system is used to heat the seat in winter, the external controller controls the pump body 3 to work while opening the electromagnetic valve a14 and the electromagnetic valve c and closing the electromagnetic valve d and the electromagnetic valve b15, and the hot water in the hot water area 201 is pumped out through the pipe b12 and transported to the inside of the pipe c32, and when the hot water passes through the seat heating system, it exchanges heat with the seat, and finally flows back to the cold water area 202 through the pipe d33.

[0049] When the displacement sensor 5 monitors that the moving distance of the plate b8 is greater than a threshold value, it indicates that the compression distance of the piston assembly exceeds the normal value (i.e. the damping force of the vibrator is insufficient to play a vibration buffering role), at this time, the displacement sensor 5 feeds back to the external controller, and the external controller controls the telescopic component 6 to work, the telescopic component 6 drives the uppermost permanent magnet 18 to move downward, the uppermost permanent magnet 18 drives the triangular intersection to move downward, so that the included angle of the intersection of the rod c22 increases, and the rod c22 drives the rod a20 and the rod b21 to rotate, so that the included angle between the rod a20 and the rod b21 increases, realizing the function of equal distance downward movement of each permanent magnet 18, so that the number of permanent magnets 18 at the damping area of the cylinder a16 increases, realizing the function of strengthening the magnetic field at the damping area; further, the damping force of the magnetorheological fluid can be increased, and the damping force of the whole vibrator can be increased, so that the vibrator can adapt to the current road section; on the contrary, when the displacement sensor 5 monitors that the moving distance of the plate b8 is too small, it indicates that the compression distance of the piston assembly is less than the normal value (i.e. the damping force of the vibrator is too large, and cannot play a vibration buffering role), the telescopic component 6 drives the uppermost permanent magnet 18 to move upward, so that the number of permanent magnets 18 at the damping area of the cylinder a16 decreases, realizing the function of weakening the magnetic field at the damping area, reducing the damping force of the vibrator, and since the number of permanent magnets 18 is large, the range of increase and decrease of the number of permanent magnets 18 at the damping area of the cylinder a16 is large, i.e. the adjustable range of the magnetic field strength at the damping area of the cylinder a16 is large, so that the adjustable range of the damping force of the magnetorheological fluid is increased, thereby the adjustable range of the damping force of the vibrator is significantly increased, which is convenient for adjusting the damping force according to various road sections.

[0050] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. A shock absorber for recovering the vibration energy of an automobile, characterized by comprising: It comprises: a damping mechanism, which comprises a cylinder a (16), a piston rod (28), a sleeve (29), a baffle (27), a piston assembly, a base assembly and a spring a (7); the piston assembly is slidably arranged inside the cylinder a (16); the piston rod (28) penetrates the top end of the cylinder a (16) and is connected with the piston assembly; the base assembly is connected on the inner wall of the cylinder a (16); an outlet (1601) is formed on the cylinder a (16); the sleeve (29) is rotatably connected with the base; the top end of the cylinder a (16) is connected with a plate a (4); the piston rod (28) is connected with a plate b (8), and the two ends of the spring a (7) are connected with the plate a (4) and the plate b (8) respectively; an adjusting mechanism, which comprises a cylinder b (24), an extension assembly, a permanent magnet (18) and a magnetic shield (19); the cylinder b (24) is connected outside the cylinder a (16); the magnetic shield (19) is provided with two pieces and is connected on the two sides of the permanent magnet (18); the permanent magnet (18) is provided with a plurality of pieces and is sleeved outside the cylinder b (24); the lowermost permanent magnet (18) is connected with the cylinder b (24); the extension assembly is connected with the permanent magnet (18); a heat energy recovery mechanism, which comprises a cylinder c (1), a spiral blade (17), a water tank (2), a pump body (3), a pipe a (11) and a pipe b (12); the cylinder c (1) is arranged outside the cylinder b (24); the spiral blade (17) is arranged on the surface of the cylinder b (24); the water tank (2) is arranged on the surface of the cylinder c (1); the pump body (3) is communicated with the cylinder b (24) through the pipe a (11); the inside of the water tank (2) is provided with two plate c (13), which divides the inside of the water tank (2) into a cold water area (202) and a hot water area (201); the pipe b (12) is arranged in the hot water area (201) and is communicated with the pump body (3); the pipe b (12) is connected with the plate c (13); the two ends of the pipe b (12) are provided with a solenoid valve a (14) and a solenoid valve b (15).

2. A shock absorber for recovering the vibration energy of a vehicle according to claim 1, wherein The sleeve (29) is provided with an impeller (34); the sleeve (29) penetrates the cylinder a (16) and is rotatably connected with the cylinder a (16); one end of the sleeve (29) is connected with a generator (30), which is used for converting part of vibration energy into electric energy.

3. The shock absorber of claim 1, wherein, The plate b (8) and the bottom end of the cylinder a (16) are both connected with a lifting ring (9); the bottom end of the lifting ring (9) on the cylinder a (16) is provided with a groove, which is used for accommodating the generator (30).

4. The shock absorber of claim 1, wherein, The piston assembly and the base assembly are the same in structure and are symmetrically arranged; the piston assembly and the base assembly both comprise a block body (23), a spring b (31), a plate d (25) and a plate e (26); the two side surfaces of the block body (23) are provided with grooves; the spring b (31) is arranged in the grooves; the plate d (25) and the plate e (26) are arranged on the two sides of the block body (23) and are connected with the spring b (31).

5. The shock absorber of claim 3, wherein the shock absorber is a shock absorber for a vehicle. The inside of the block body (23) is provided with a hole a (35) and a hole b (36); the plate d (25) is used for shielding the hole a (35); the plate e (26) is used for shielding the hole b (36).

6. The shock absorber of claim 1, wherein, The stretching assembly comprises a telescopic part (6), a cross part and a triangular part, the cross part is provided with a plurality of adjacent rotating connections; the triangular part is provided with two rotating connections with the two outermost permanent magnets (18) respectively; the triangular part is rotatingly connected with the cross part; the telescopic part (6) is arranged on the plate a (4) and the output end thereof is connected with the uppermost permanent magnet (18).

7. A shock absorber for recovering the vibration energy of a vehicle according to claim 6, wherein The cross part is composed of a rod a (20) and a rod b (21); the rod a (20) and the rod b (21) are cross-rotatingly arranged and the cross is rotatingly connected with the permanent magnet (18); the rod a (20) and the rod b (21) are rotatingly connected between the adjacent cross parts; the triangular part comprises two rod c (22); the two rod c (22) are cross-arranged in a triangular shape and the cross is rotatingly connected with the permanent magnet (18); the two rod c (22) are rotatingly connected with the rod a (20) and the rod b (21) respectively.

8. The shock absorber of claim 1, wherein, The pipe a (11) is connected with a pipe c (32); the pipe c (32) extends to the seat heating system and is communicated with the cold water area (202) in the water tank (2) through a pipe d (33); the pipe c (32) is provided with an electromagnetic valve c.

9. The shock absorber of claim 1, wherein, The plate a (4) is connected with a displacement sensor (5); the displacement sensor (5) is used for monitoring the change of the vibration amplitude; the outer side of the piston rod (28) is sleeved with a dust cover (10) for dustproof effect of the piston rod (28). The plate a (4) is connected with a displacement sensor (5); the displacement sensor (5) is used for monitoring the change of the vibration amplitude; the outer side of the piston rod (28) is sleeved with a dust cover (10) for dustproof effect of the piston rod (28).

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