Self-energized vibration energy recovery automobile shock absorber
By integrating a generator and a storage box into the magnetorheological vibration damper, the problem of the magnetorheological vibration damper being unable to generate electricity independently is solved, and the vibration energy recovery and self-powering effect are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WENDA SHOCK ABSORBER
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing automotive magnetorheological dampers lack vibration energy recovery capabilities and cannot generate their own power.
A self-powered vibration energy recovery vehicle shock absorber was designed. By integrating a generator and a storage box into the magnetorheological shock absorber, the vibration energy is used to generate electricity and store it in the storage box to power the magnetorheological shock absorber.
It realizes the recovery and storage of vibration energy, and can self-power the magnetorheological vibration damper, thus improving the vibration damper's autonomous power supply capability.
Smart Images

Figure CN224174462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive shock absorber technology, specifically a self-powered vibration energy recovery automotive shock absorber. Background Technology
[0002] Automotive shock absorbers, also known as dampers or shock absorbers, are devices used to suppress the oscillations when springs absorb shocks and the impacts from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride comfort of the car.
[0003] Automotive shock absorbers include hydraulic shock absorbers, air shock absorbers, electronic shock absorbers, magnetorheological shock absorbers, and adjustable damping shock absorbers, etc. Magnetorheological shock absorbers utilize electromagnetic reactions and, based on input information from sensors that monitor the movement of the vehicle body and wheels, respond in real time to road conditions and the driving environment.
[0004] However, existing automotive magnetorheological dampers lack vibration energy recovery capabilities and cannot independently power themselves. Therefore, we propose a self-powered vibration energy recovery automotive damper. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this utility model provides a self-powered vibration energy recovery vehicle shock absorber, which solves the problems mentioned in the background technology.
[0006] This utility model provides the following technical solution: a self-powered vibration energy recovery vehicle shock absorber, including a magnetorheological shock absorber body, a generator, a telescopic component, a limit block and a storage box;
[0007] A rack is bolted to one side of the magnetorheological vibration damper body, and a protective box is provided on the other side of the magnetorheological vibration damper body. A generator is installed inside the protective box via a mounting bracket. The input shaft of the generator located outside the protective box is provided with a telescopic assembly. The telescopic assembly includes a main pipe that is sleeved on the input shaft of the generator via a connecting sleeve. A telescopic rod is sleeved at one end of the main pipe. A transmission gear is fixedly sleeved at one end of the telescopic rod via a flat key. An energy storage box is provided inside the protective box located at the bottom of the magnetorheological vibration damper body.
[0008] Furthermore, a limit block is provided at one end of the telescopic rod located inside the main tube, and fixing bolts are connected to both sides of the main tube through threaded grooves.
[0009] Furthermore, limit grooves are formed on both sides of the limit block, and limit strips are provided on both sides inside the main pipe, with the limit strips located inside the limit grooves.
[0010] Furthermore, the transmission gear is located on one side of the rack, and the transmission gear meshes with the rack.
[0011] Furthermore, a charging controller is provided on the top of the battery storage box, and the output end of the generator and the input end of the battery storage box are electrically connected to the input end and the output end of the charging controller respectively via power lines.
[0012] Furthermore, mounting blocks are welded at equal intervals on both sides of the protective box.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] When a car encounters vibration while driving, the magnetorheological damper body extends and retracts to reduce vibration. When the magnetorheological damper body extends and retracts, the rack moves up and down and drives the transmission gear to rotate. The rotation of the transmission gear drives the input shaft of the generator to rotate through the telescopic rod and the telescopic rod. The rotation of the generator input shaft generates electricity.
[0015] The DC power generated by the generator is stored in the storage box through the charging controller. The storage box is connected to the magnetorheological vibration damper body using a power cable, and the storage box can supply power to the magnetorheological vibration damper body.
[0016] This self-powered vibration energy recovery automotive shock absorber uses a magnetorheological damper body to drive the generator input shaft to rotate and generate electricity, thus achieving the purpose of vibration energy recovery. The electrical energy generated by the generator is stored in a storage box, which can supply power to the magnetorheological damper body, achieving the purpose of self-powering. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the protective box of this utility model;
[0019] Figure 3 This is a schematic diagram of the telescopic component structure of this utility model;
[0020] In the diagram: 1. Magnetorheological vibration damper body; 2. Protective housing; 3. Rack; 4. Generator; 5. Telescopic assembly; 501. Main pipe; 502. Telescopic rod; 503. Limiting block; 504. Fixing bolt; 505. Limiting strip; 506. Limiting groove; 6. Transmission gear; 7. Storage box; 8. Charging controller; 9. Mounting block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 In this embodiment of the utility model, it includes a magnetorheological damper body 1, a generator 4, a telescopic assembly 5, a limiting block 503, and a battery storage box 7.
[0023] A rack 3 is fixed to one side of the magnetorheological damper body 1 by bolts, and a protective box 2 is provided on the other side of the magnetorheological damper body 1. A generator 4 is installed inside the protective box 2 by a mounting bracket. The input shaft of the generator 4 located outside the protective box 2 is provided with a telescopic component 5. The telescopic component 5 includes a main pipe 501 that is sleeved on the input shaft of the generator 4 through a connecting sleeve. One end of the main pipe 501 is sleeved with a telescopic rod 502. One end of the telescopic rod 502 is fixed with a transmission gear 6 by a flat key. An energy storage box 7 is provided inside the protective box 2 located at the bottom of the magnetorheological damper body 1.
[0024] The telescopic rod 502 is provided with a limit block 503 at one end inside the main pipe 501. The main pipe 501 is connected to the two sides by threaded grooves with fixing bolts 504. Tightening the fixing bolts 504 can fix the telescopic rod 502 after it has been extended or retracted.
[0025] The limiting block 503 has limiting grooves 506 on both sides, and the main pipe 501 has limiting strips 505 on both sides inside. The limiting strips 505 are located inside the limiting grooves 506. The setting of the limiting strips 505 and the limiting grooves 506 can enable the telescopic rod 502 to drive the main pipe 501 to rotate without affecting the extension and retraction of the telescopic rod 502.
[0026] The transmission gear 6 is located on one side of the rack 3 and meshes with the rack 3. When the magnetorheological damper body 1 is working, it drives the transmission gear 6 to rotate through the rack 3.
[0027] The battery storage box 7 is equipped with a charging controller 8 on its top. The output end of the generator 4 and the input end of the battery storage box 7 are electrically connected to the input end and output end of the charging controller 8 respectively through a power line. The generator 4 supplies power to the battery storage box 7 through the charging controller 8. The charging controller 8 is used to control the electrical energy input into the battery storage box 7.
[0028] The protective box 2 has mounting blocks 9 welded at equal intervals on both sides. The protective box 2 can be fixed to the car by bolts through the mounting blocks 9.
[0029] The working principle of this utility model is as follows: Personnel install the magnetorheological damper body 1 on a car, and use bolts to install the protective box 2 on the car next to the magnetorheological damper body 1 via the mounting block 9, so that the transmission gear 6 is close to one side of the rack 3. When the car encounters vibration, the magnetorheological damper body 1 extends and retracts to absorb the vibration. During this extension and retraction, the rack 3 moves up and down, driving the transmission gear 6 to rotate. The rotation of the transmission gear 6, through the telescopic rod 502, drives the input shaft of the generator 4 to rotate. The rotation of the generator 4's input shaft generates electricity, achieving the purpose of vibration energy recovery. The generated DC power is stored in the battery box 7 via the charging controller 8. Device 8 is used to control the electrical energy input to the battery box 7, which can prevent the battery box 7 from being overloaded. The battery box 7 is connected to the magnetorheological damper body 1 using a power cable. The battery box 7 can supply power to the magnetorheological damper body 1, which uses DC power, to achieve the purpose of self-powering. One end of the telescopic rod 502 is sleeved in the main pipe 501, so that it can extend and retract. The distance between the protective box 2 and the magnetorheological damper body 1 can be adjusted according to the vehicle installation conditions. The setting of the limit block 503 can prevent the telescopic rod 502 from falling out of the main pipe 501. The setting of the limit strip 505 and the limit groove 506 can allow the telescopic rod 502 to drive the main pipe 501 to rotate without affecting the extension and retraction of the telescopic rod 502.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A self-powered vibration energy recovery vehicle shock absorber, comprising a magnetorheological shock absorber body (1), a generator (4), a telescopic assembly (5), a limit block (503), and a battery storage box (7). Its features are: A rack (3) is fixed to one side of the magnetorheological damper body (1) by bolts. A protective box (2) is provided on the other side of the magnetorheological damper body (1). A generator (4) is installed inside the protective box (2) by a mounting bracket. A telescopic component (5) is provided on the input shaft of the generator (4) located outside the protective box (2). The telescopic component (5) includes a main pipe (501) that is sleeved on the input shaft of the generator (4) by a connecting sleeve. A telescopic rod (502) is sleeved on one end of the main pipe (501). A transmission gear (6) is fixed on one end of the telescopic rod (502) by a flat key. An energy storage box (7) is provided inside the protective box (2) located at the bottom of the magnetorheological damper body (1).
2. The self-powered vibration energy recovery automotive shock absorber according to claim 1, characterized in that: The telescopic rod (502) is provided with a limit block (503) at one end inside the main tube (501), and the main tube (501) is connected to the two sides by a fixing bolt (504) through a threaded groove.
3. The self-powered vibration energy recovery automotive shock absorber according to claim 1, characterized in that: The limiting block (503) has limiting grooves (506) on both sides, and the main tube (501) has limiting strips (505) on both sides inside, with the limiting strips (505) located inside the limiting grooves (506).
4. The self-powered vibration energy recovery automotive shock absorber according to claim 1, characterized in that: The transmission gear (6) is located on one side of the rack (3), and the transmission gear (6) meshes with the rack (3).
5. The self-powered vibration energy recovery automotive shock absorber according to claim 1, characterized in that: The top of the battery storage box (7) is equipped with a charging controller (8). The output end of the generator (4) and the input end of the battery storage box (7) are electrically connected to the input end and output end of the charging controller (8) respectively through a power line.
6. The self-powered vibration energy recovery automotive shock absorber according to claim 1, characterized in that: Mounting blocks (9) are welded at equal intervals on both sides of the protective box (2).