Permanent magnet auxiliary electric energy recovery shock absorber for vehicle
By employing permanent magnet-assisted design and energy recovery technology in the shock absorber, the magnetic force generated by the opposite poles of the magnet rings is used to buffer vibrations and convert mechanical energy into electrical energy for storage. This solves the problem of ride comfort during large bumps and achieves more efficient energy utilization and equipment reliability.
Patent Information
- Application Number
- CN202520831109.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-28
AI Technical Summary
Existing shock absorbers may not be able to effectively dampen the vibration of the springs when encountering large bumps, causing the vehicle body to bounce repeatedly and affecting ride comfort.
It adopts a permanent magnet assisted design, which generates a stable magnetic force through the opposite poles of magnet coil one and magnet coil two. Combined with the shock-absorbing elastic element, it absorbs vibration energy and converts mechanical energy into electrical energy through the magnetic coil and stores it in the battery.
It effectively buffers the vibration and impact between the wheels and the car frame, improves ride comfort, extends shock absorber life, and improves energy efficiency.
Smart Images

Figure CN223894846U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of shock absorbers, and more particularly to a permanent magnet-assisted energy recovery shock absorber for vehicles. Background Technology
[0002] Shock absorbers (also known as vibration dampers) are the core components of a car's suspension system. They work in conjunction with springs and are typically installed between the vehicle frame and wheel frame. Their main function is to absorb and dissipate the vibration energy generated by road impacts, converting the vibration into heat energy for dissipation. This improves ride comfort, reduces bumps, enhances handling stability, prevents excessive bouncing or body roll, and increases tire grip.
[0003] When a car encounters a bump, the springs in the shock absorbers vibrate repeatedly to absorb the impact of the road surface. However, when encountering larger bumps, the shock absorbers may fail to effectively dampen the spring vibrations, causing the car body to bounce repeatedly and affecting ride comfort. Utility Model Content
[0004] To improve ride comfort, this application provides a permanent magnet-assisted energy recovery shock absorber for vehicles.
[0005] This application provides a vehicle permanent magnet assisted energy recovery shock absorber with the following technical solution:
[0006] A permanent magnet assisted energy recovery shock absorber for vehicles includes a first sleeve for connecting to a vehicle frame and a second sleeve for connecting to a wheel frame. The first sleeve and the second sleeve are inserted into each other. A first magnet ring is fixedly connected to one side wall of the first sleeve near the second sleeve, and a second magnet ring is fixedly connected to one side wall of the second sleeve near the first sleeve. The first magnet ring and the second magnet ring have opposite poles facing each other. A shock-absorbing elastic element is installed between the vehicle frame and the wheel frame.
[0007] By adopting the above technical solution, during operation, the magnetic rings one and two, due to their opposite poles, can generate a stable magnetic force, effectively buffering the vibration and impact between the wheel frame and the car frame during vehicle operation, thus improving ride comfort. At the same time, this structural design simplifies the installation of the shock absorber, enhances its reliability and durability, and provides a smoother driving experience.
[0008] Preferably, there are multiple magnet rings one distributed along the length direction of sleeve one, and multiple magnet rings two distributed along the length direction of sleeve two.
[0009] By adopting the above technical solution, the interaction force between magnet ring one and magnet ring two can be enhanced, thereby improving the stability of the shock absorber. At the same time, this distribution method makes the magnetic field lines more uniform.
[0010] Preferably, the second sleeve is inserted into the inside of the first sleeve, the inner side wall of the first sleeve is provided with a first mounting groove, the outer side wall of the second sleeve is provided with a second mounting groove, the first magnet ring is fixedly connected in the first mounting groove, and the second magnet ring is fixedly connected in the second mounting groove.
[0011] By adopting the above technical solution, stable installation of magnet ring one and magnet ring two on sleeve one and sleeve two is achieved, ensuring that magnet ring one and magnet ring two maintain accurate relative positions, thereby ensuring a stable magnetic force when their opposite poles are facing each other. This design not only improves the structural stability of the shock absorber but also guarantees the reliability of the magnetically assisted damping effect. Furthermore, the design of inserting sleeve two inside sleeve one effectively reduces the overall volume of the shock absorber, facilitating installation within the limited space of a car.
[0012] Preferably, the first magnet ring is glued in the first mounting groove, and the second magnet ring is glued in the second mounting groove.
[0013] By adopting the above technical solution, magnet ring one and magnet ring two are respectively glued into mounting groove one and mounting groove two, which can effectively improve the fixing stability of magnet ring one and magnet ring two, and limit the occurrence of magnet rings loosening or falling off due to vibration during the operation of the shock absorber. At the same time, the glue sealing method can also provide a certain degree of protection for the magnet rings, thereby extending the service life of the shock absorber.
[0014] Preferably, a magnetic coil is installed between the plurality of magnet rings one and the plurality of magnet rings two, and the magnetic coil is connected in sequence to a transformer, a rectifier, and a battery.
[0015] By adopting the above technical solution, the magnetic coil between magnet coil one and magnet coil two can cut magnetic field lines to generate an induced current during relative motion, thereby realizing the recovery of electrical energy. This solution makes full use of the reciprocating motion of the shock absorber during vehicle operation, efficiently converting mechanical energy into electrical energy and storing it in the battery, effectively improving the vehicle's energy utilization efficiency. At the same time, the transformer and rectifier ensure stable electrical output and conversion, further enhancing the system's reliability and practicality.
[0016] Preferably, the shock-absorbing elastic element is a shock-absorbing spring or a shock-absorbing airbag.
[0017] By adopting the above technical solutions, the shock-absorbing elastic components, using shock-absorbing springs or airbags, can effectively absorb the vibration energy generated during vehicle operation. Shock-absorbing springs possess excellent elasticity and stability, quickly returning to their original shape during compression and rebound, thereby reducing the amplitude of vibration transmitted to the vehicle frame. Shock-absorbing airbags utilize the compressibility of gas to provide a smoother shock absorption effect, and their shock absorption performance can be adjusted according to air pressure to adapt to different road conditions.
[0018] Preferably, the shock-absorbing elastic element is installed inside sleeve one and sleeve two, with one end of the shock-absorbing elastic element fixedly connected to sleeve one and the other end fixedly connected to sleeve two.
[0019] Preferably, the shock-absorbing elastic element is installed on the outside of sleeve one and sleeve two, with one end of the shock-absorbing elastic element fixedly connected to the vehicle frame and the other end fixedly connected to the wheel frame.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. Effectively buffers vibration and impact between the wheel frame and the car frame during vehicle operation, improving ride comfort;
[0022] 2. The adhesive sealing method can provide some protection for the magnet ring, thereby extending the service life of the shock absorber;
[0023] 3. The magnetic coil between magnet coil one and magnet coil two can cut magnetic field lines to generate induced current when they move relative to each other, thereby realizing the recovery of electrical energy. Attached Figure Description
[0024] Figure 1 This is a cross-sectional view illustrating the structure of the shock absorber in an embodiment of this application.
[0025] Explanation of reference numerals in the attached drawings: 1. Sleeve 1; 11. Mounting groove 1; 2. Sleeve 2; 21. Mounting groove 2; 3. Shock-absorbing elastic element; 4. Magnet ring 1; 5. Magnet ring 2; 6. Magnetic coil. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.
[0027] This application discloses a permanent magnet-assisted energy recovery shock absorber for automobiles. (Refer to...) Figure 1 The automotive permanent magnet assisted energy recovery shock absorber includes a sleeve 1 and a sleeve 2 arranged vertically, and also includes a shock-absorbing elastic element 3. The sleeve 1 is used for fixed connection with the vehicle frame, and the sleeve 2 is used for fixed connection with the wheel. The lower end of the sleeve 1 is sleeved on the outer side of the upper end of the sleeve 2, and the sleeve 1 and the sleeve 2 are slidably inserted into each other.
[0028] Multiple magnetic rings 4 are fixedly connected to the side wall of sleeve 1 near sleeve 2, and multiple magnetic rings 5 are fixedly connected to the side wall of sleeve 2 near sleeve 1. Both magnetic rings 4 and 5 are arranged along the length of sleeve 1. One magnetic ring 4 corresponds to one magnetic ring 5, and their opposite poles are opposite, causing them to attract each other. Both magnetic rings 4 and 5 are permanent magnets.
[0029] The shock-absorbing elastic element 3 is installed between the vehicle frame and the wheel frame, achieving efficient shock absorption and energy recovery through permanent magnet assistance. When the shock-absorbing elastic element 3 vibrates and expands, each second magnet ring 5 moves relative to the first magnet ring 4, and the second magnet ring 5 is assisted in resetting under the magnetic attraction of the first magnet ring 4. The distance between any two adjacent first magnet rings 4, and the distance between any two adjacent second magnet rings 5, are both greater than the movement distance of the shock-absorbing elastic element 3 during expansion and contraction. Therefore, it is difficult for each first magnet ring 4 to attract another second magnet ring 5.
[0030] The inner wall of sleeve 1 has a mounting groove 11, which is an annular groove structure. The magnet ring 4 is fixed in the mounting groove 11 by adhesive sealing, further improving installation stability.
[0031] The outer wall of sleeve 2 has a mounting groove 21, which is also an annular groove structure. Magnet ring 5 is also fixed in the mounting groove 21 by adhesive sealing, further improving installation stability.
[0032] The damping elastic element 3 includes a damping spring or a damping airbag. The damping spring is a helical spring structure, usually made of high-carbon steel wire, which has good elasticity and fatigue resistance. The damping airbag is made of high-strength rubber material and filled with compressed air, which can generate a reaction force to counteract vibration when compressed.
[0033] The shock-absorbing elastic element 3 can be installed inside or outside sleeve 1 and sleeve 2. When the shock-absorbing elastic element 3 is installed inside sleeve 1 and sleeve 2, one end of the shock-absorbing elastic element 3 is fixedly connected to sleeve 1, and the other end is fixedly connected to sleeve 2, thus providing auxiliary shock absorption. When the shock-absorbing elastic element 3 is installed outside sleeve 1 and sleeve 2, one end of the shock-absorbing elastic element 3 is fixedly connected to the vehicle frame, and the other end is fixedly connected to the wheel frame. In this embodiment, the shock-absorbing elastic element 3 is a shock-absorbing spring, and the shock-absorbing spring is installed inside sleeve 1 and sleeve 2.
[0034] A magnetic coil 6 is installed between multiple magnet rings 4 and multiple magnet rings 5. The magnetic coil 6 is fixedly connected to the slot opening of the mounting slot 11. The output end of the magnetic coil 6 is connected to the input end of the transformer, the output end of the transformer is connected to the input end of the rectifier, and the output end of the rectifier is connected to the input end of the battery, thus achieving more efficient energy recovery.
[0035] The magnetic coil 6 is made of multiple turns of copper wire and is shaped like a hollow cylinder. The transformer is used to adjust the voltage level, the rectifier is used to convert alternating current to direct current, and the battery is used to store electrical energy.
[0036] The implementation principle of a vehicle permanent magnet assisted energy recovery shock absorber according to this application embodiment is as follows: When the vehicle encounters bumps during driving, relative displacement occurs between sleeve 1 and sleeve 2, and the magnetic field strength between magnet ring 4 and magnet ring 5 changes accordingly, thereby generating a dynamic damping effect. This effect can effectively absorb vibration energy, and at the same time, some of the energy is converted into electrical energy for recovery through the magnetic coil 6. The opposite poles of magnet ring 4 and magnet ring 5 are designed to ensure that the magnetic coil 6 can stably cut the magnetic field lines, improving the energy recovery efficiency.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A vehicle-mounted permanent magnet assisted energy recovery shock absorber, characterized in that: The device includes a first sleeve (1) for connecting to the vehicle frame and a second sleeve (2) for connecting to the wheel frame. The first sleeve (1) and the second sleeve (2) are inserted into each other. A magnet ring (4) is fixedly connected to one side wall of the first sleeve (1) near the second sleeve (2). A magnet ring (5) is fixedly connected to one side wall of the second sleeve (2) near the first sleeve (1). The magnet rings (4) and (5) are opposite poles. A shock-absorbing elastic element (3) is installed between the vehicle frame and the wheel frame.
2. The vehicle permanent magnet assisted energy recovery shock absorber according to claim 1, characterized in that: The first magnet ring (4) is multiple and distributed along the length direction of the first sleeve (1), and the second magnet ring (5) is multiple and distributed along the length direction of the second sleeve (2).
3. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 1 or 2, characterized in that: The second sleeve (2) is inserted into the inside of the first sleeve (1). The inner side wall of the first sleeve (1) is provided with an installation groove (11), and the outer side wall of the second sleeve (2) is provided with an installation groove (21). The first magnet ring (4) is fixedly connected in the first installation groove (11), and the second magnet ring (5) is fixedly connected in the second installation groove (21).
4. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 3, characterized in that: The first magnet ring (4) is sealed in the first mounting groove (11), and the second magnet ring (5) is sealed in the second mounting groove (21).
5. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 2, characterized in that: A magnetic coil (6) is installed between multiple magnet rings one (4) and multiple magnet rings two (5), and the magnetic coil (6) is connected in sequence to a transformer, a rectifier and a storage battery.
6. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 1, characterized in that: The shock-absorbing elastic element (3) is a shock-absorbing spring or a shock-absorbing airbag.
7. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 5, characterized in that: The shock-absorbing elastic element (3) is installed inside sleeve one (1) and sleeve two (2). One end of the shock-absorbing elastic element (3) is fixedly connected to sleeve one (1), and the other end is fixedly connected to sleeve two (2).
8. A vehicle permanent magnet assisted energy recovery shock absorber according to claim 5, characterized in that: The shock-absorbing elastic element (3) is installed on the outside of sleeve one (1) and sleeve two (2). One end of the shock-absorbing elastic element (3) is fixedly connected to the car frame, and the other end is fixedly connected to the wheel frame.