Novel electromagnetic air damping shock absorber

Abstract

The invention relates to the field of vehicle dynamics and damping control, discloses a novel electromagnetic air damping shock absorber, is applied to an automobile suspension system, aims to provide a shock absorber capable of adjusting damping force in real time, and comprises a sleeve, a guide rail rod, a Halbach permanent magnet array, an electromagnetic coil, a buffer conductor cylinder, a small wafer, a sealing ring and a guide sliding block. The guide rail rod is located in the center of the sleeve and is kept coaxial with the sleeve. The two sides of the sleeve are provided with five throttle holes, and the buffer conductor cylinder is sleeved on the guide rail rod and is sealed by a sealing ring. The guide slide block is in close contact with the buffer conductor cylinder, the Halbach permanent magnet array and the electromagnetic coil are respectively embedded and wound on the guide rail rod, and the small wafers are embedded at two ends of the guide rail rod and are adjacent to the Halbach permanent magnet array. According to the design, the active characteristic of electromagnetic damping and the passive characteristic of air damping are integrated, dependence on an external power source is reduced, the overall performance and reliability of the shock absorber are improved, and the riding comfort and the driving safety are remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of vehicle dynamics and vibration reduction control, and in particular to a novel electromagnetic air damping shock absorber. Background Art

[0002] At present, the commonly used automobile shock absorbers on the market are mainly mechanical designs. Although they can meet the basic vibration reduction needs to a certain extent, they have obvious limitations in complex driving environments. These traditional shock absorbers cannot adjust the damping force in real time, resulting in unstable damping force under different road conditions and difficulty in effectively responding to changing driving conditions. For example, on a rough road, the mechanical shock absorber may not be able to quickly adapt to the change in impact force, resulting in reduced ride comfort and reduced driving safety.

[0003] In addition, traditional shock absorbers usually rely on the flow of hydraulic oil to adjust the damping force, but this mechanism is easily affected by external factors, such as temperature changes and changes in the viscosity of the hydraulic oil, which further reduces the vibration reduction effect. In high or low temperature environments, the performance of the hydraulic oil may change, resulting in a decrease in the response speed and stability of the shock absorber, thus affecting the vehicle's handling and passenger comfort.

[0004] In order to solve these problems, the existing technology has begun to explore electromagnetic damping systems. This system can dynamically adjust the damping force, respond to changes in road conditions in a timely manner, and improve the adaptability of vehicles in different environments. However, electromagnetic dampers usually require a continuous power supply, which increases the dependence on power supply, especially when the energy supply is unstable or the power system fails, and may not be able to fully exert its advantages. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the present invention proposes a novel electromagnetic air damping vibration absorber.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A novel electromagnetic air damping shock absorber includes a sleeve, a guide rail rod, a Halbach permanent magnet array, an electromagnetic coil, a small disc, a buffer conductor tube, a sealing ring, and a guide slider. The guide rail rod is located at the center of the sleeve and is coaxial with the sleeve. Five throttle holes are arranged on both sides of the sleeve; the buffer conductor tube is sleeved on the guide rail rod, and each of the two ends of the guide rail rod is provided with a buffer conductor tube, whose inner diameter is slightly smaller than that of the sleeve; the sealing ring is used to seal between the sleeve and the buffer conductor tube; the guide slider is sleeved on the guide rail rod and is in close contact with the buffer conductor tube; the Halbach permanent magnet array is spirally embedded in the guide rail rod and is concentric with the guide rail rod; the electromagnetic coil is spirally wound on the guide rail rod; the small disc is embedded at both ends of the guide rail rod and is close to the Halbach permanent magnet array.

[0008] Preferably, five exhaust holes are respectively arranged on both sides of the sleeve, so as to form a buffer channel together with the buffer conductor tube, thereby generating air damping and ensuring that the gas can be discharged slowly.

[0009] Preferably, the buffer conductor tube is characterized in that both ends are wedge-shaped, can move freely on the guide rod, and can effectively guide the air flow, reduce the generation of turbulence and eddy currents, improve the air flow stability and damping performance, and at the same time reduce the shock absorber's dependence on power supply.

[0010] Preferably, the sealing ring is embedded between the buffer conductor tube and the sleeve to form a sealed buffer channel. When the guide rod moves to both sides, the buffer conductor tube can more effectively utilize the closed space to generate air damping.

[0011] Preferably, through the optimized magnet arrangement, the Halbach permanent magnet array can generate a strong magnetic field in a specific direction, so that the electromagnetic damping can respond quickly to external impacts and improve the damping effect; at the same time, it weakens the magnetic field in the non-working direction and reduces magnetic interference to the surrounding environment, thereby protecting the normal operation of other electronic equipment.

[0012] Preferably, the Halbach permanent magnet array is spirally embedded in the guide rail, which can improve vibration reduction performance, improve ride comfort by enhancing magnetic field concentration, reduce overall weight, and enhance fuel economy by optimizing design.

[0013] Preferably, the sleeve is made of insulating hard material, the guide rail rod is made of insulating hard material, the guide slider is made of insulating hard material, the small disc is made of insulating hard material, the buffer conductor tube is made of iron material, and the Halbach permanent magnet array is made of permanent magnet material.

[0014] Compared with the prior art, the novel electromagnetic air damping vibration absorber disclosed in the present invention has the following beneficial effects:

[0015] Through the active characteristics of electromagnetic damping and the passive characteristics of air damping, not only can a stable damping effect be achieved, but also the dependence on power supply is significantly reduced, and the reliability of the shock absorber is improved. This new shock absorber can provide the best riding experience and safety under various driving conditions while maintaining excellent vibration reduction performance, thus opening up a new direction for the development of future automotive vibration reduction technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 The structure diagram of the electromagnetic air damping vibration absorber disclosed in the present invention

[0018] Figure 2 The left side view of the electromagnetic air damping vibration absorber disclosed in the present invention

[0019] Figure 3 The internal structure diagram of the electromagnetic air damping vibration absorber disclosed in the present invention

[0020] Figure 4 A cross-sectional view of the guide rail in the electromagnetic air damping shock absorber disclosed in the present invention

[0021] Figure 5 The overall cross-sectional view of the electromagnetic air damping vibration absorber disclosed in the present invention

[0022] Figure 6 This is an enlarged view of the buffer channel in the electromagnetic air damping shock absorber disclosed in the present invention

[0023] Figure 7 Halbach permanent magnet array arrangement in electromagnetic air damping shock absorber disclosed in the present invention

[0024] Figure 8 Schematic diagram of a closed-loop circulation system

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-sleeve, 2-guide slider, 3-guide rod, 4-sealing ring, 5-buffer conductor cylinder, 6-Halbach permanent magnet array, 7-electromagnetic coil, 8-small disc. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The specific scheme of a novel electromagnetic air damping vibration absorber provided by the present invention is described in detail below with reference to the accompanying drawings. Specific embodiment:

[0030] like Figure 1-4 As shown, this embodiment includes: 1-sleeve, 2-guide slider, 3-guide rail rod, 4-sealing ring, 5-buffer conductor tube, 6-Halbach permanent magnet array, 7-electromagnetic coil, 8-small disc, the guide rail rod 3 is located at the center of the sleeve 1 and keeps coaxial with the sleeve 1, and five throttle holes are provided on both sides of the sleeve 1; the buffer conductor tube 5 is sleeved on the guide rail rod 3, and one buffer conductor tube 5 is provided at each end of the guide rail rod 3, and its inner diameter is slightly smaller than that of the sleeve 1; the sealing ring 4 is used to seal between the sleeve 1 and the buffer conductor tube 5; the guide slider 2 is sleeved on The guide rail rod 3 is on the guide rail rod 3 and is in close contact with the buffer conductor tube 5; the Halbach permanent magnet array 6 is spirally embedded in the guide rail rod 3 and is concentric with the guide rail rod 3; the electromagnetic coil 7 is spirally wound on the guide rail rod 3; the small disc 8 is embedded at both ends of the guide rail rod 3 and is close to the Halbach permanent magnet array 6; the buffer conductor tube 5 can move freely on the guide rail rod 3 under the push of the guide slider 2. Since the two ends of the buffer conductor tube 5 are wedge-shaped and five throttle holes are respectively opened at both ends of the sleeve 1, a buffer airflow is generated during the movement to form air damping.

[0031] One embodiment of the present invention relates to a novel electromagnetic air damping shock absorber. A sleeve 1 is provided at the outermost part of the shock absorber. A guide rail rod 3 is located at the center of the sleeve 1 and is coaxial with the sleeve 1. A Halbach permanent magnet array 6 is fixed inside the guide rail rod 3 in a spiral concentric manner. Small discs 8 are embedded at both ends of the guide rail rod 3, which are close to the Halbach permanent magnet array 6 to isolate the influence of the external environment on the permanent magnet. An electromagnetic coil 7 is wound around the outside of the guide rail rod 3. In addition, two buffer conductor cylinders 5 are sleeved on both sides of the guide rail rod 3, and their inner diameters are slightly smaller than the sleeve 1. Guide sliders 2 are provided on both sides of the buffer conductor cylinder 5, which are in close contact with the buffer conductor cylinder 5. The two ends of the buffer conductor cylinder 5 are designed to be wedge-shaped, and a sealing ring 4 is used to seal the gap between the buffer conductor cylinder 5 and the sleeve 1. The buffer conductor cylinder 5 can move inside the sleeve 1 under the push of the guide slider 2. Five throttle holes are opened on the two sides of the sleeve 1. When the buffer conductor cylinder 5 moves left and right, the space between the sleeve 1 enclosed by the sealing ring 4 and the buffer conductor cylinder 5 forms a buffer damping. During the movement, the air damping force is enhanced due to the effect of the wedge-shaped channel. That is, when stretched, the damping force of the shock absorber is large, which can more effectively attenuate the vibration quickly and reduce the driver's fatigue. When compressed, the damping force is relatively small, allowing other elastic elements of the car to fully absorb the vibration energy and mitigate the impact, which is in line with the design principle of the automobile shock absorber. During the movement of the buffer conductor cylinder 5, it generates electromagnetic induction with the electromagnetic coil 7 wound on the guide rod 3 to form an electromagnetic induction current. This current reflects the vibration of the vehicle and the flatness of the road surface in real time. The electromagnetic coils 7 at both ends of the guide rod 3 are connected to the ECU (electronic control unit). The electromagnetic coil 7 transmits the current signal to the ECU, and the ECU controls the magnetic field strength by adjusting the current size of the electromagnetic coil 7 after calculation. At this time, the Halbach permanent magnet array 6 and the electromagnetic coil 7 jointly generate a strong magnetic field. When the buffer conductor cylinder 5 moves relative to the guide rod 3, a force that hinders relative movement is generated, thereby achieving a vibration reduction effect. The vibration reduction result is then transmitted to the ECU via the current signal generated by the electromagnetic coil 7, forming a closed-loop circulation system to ensure the stable operation of the system.

[0032] Furthermore, the Halbach permanent magnet array 6 is embedded in the guide rail 3 in a spiral shape, and the spiral layout design effectively suppresses unnecessary vibration and noise, thereby improving the stability and riding comfort of the system. In addition, this design can generate a stronger magnetic field in a more compact space, which helps to reduce the overall size and weight of the device.

[0033] Furthermore, the Halbach permanent magnet array 6 optimizes the magnetic field distribution so that the magnetic field intensity reaches a peak in a specific direction and is significantly weakened in other directions. This shows that the shock absorber using the Halbach array can generate a stronger magnetic force in a limited space. This design allows the permanent magnet in the shock absorber to play a greater role in a smaller space.

[0034] Furthermore, both ends of the buffer conductor tube 5 are designed to be wedge-shaped to form a special buffer channel between the sleeve 1 and the guide rail 3. When the buffer conductor tube 5 moves toward both ends relative to the guide rail 3, the diffusion speed is slowed down due to the effect of the throttle hole on the sleeve 1, thereby generating a buffer damping effect.

[0035] In summary, the new electromagnetic air damping shock absorber of the present invention integrates electromagnetic active regulation and air passive damping, responds to complex road conditions in real time, and improves vehicle comfort and safety. The spiral Halbach permanent magnet is used to enhance the magnetic field, achieve strong damping in a small volume, reduce electromagnetic interference, and ensure the stability of high-frequency vibration. Air damping provides excellent energy absorption and reduces bumps during low-frequency vibration. The system has low maintenance costs, strong durability, and strong adaptability. The shock absorber automatically adjusts the damping force and remains effective when the power is insufficient. This technology optimizes vehicle performance, improves the riding experience, promotes intelligent autonomous driving, and provides innovative solutions for the automotive industry, which has important practical significance.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel electromagnetic air damping shock absorber, characterized in that: It includes a sleeve, a guide rail rod, a Halbach permanent magnet array, an electromagnetic coil, a small disc, a buffer conductor tube, a sealing ring, and a guide slider. The guide rail rod is located at the center of the sleeve and is coaxial with the sleeve. Five throttle holes are arranged on both sides of the sleeve; the buffer conductor tube is sleeved on the guide rail rod, and each of the two ends of the guide rail rod is provided with a buffer conductor tube, whose inner diameter is slightly smaller than that of the sleeve; the sealing ring is used to seal between the sleeve and the buffer conductor tube; the guide slider is sleeved on the guide rail rod and is in close contact with the buffer conductor tube; the Halbach permanent magnet array is spirally embedded in the guide rail rod and is concentric with the guide rail rod; the electromagnetic coil is spirally wound on the guide rail rod; the small disc is embedded at both ends of the guide rail rod and is close to the Halbach permanent magnet array.

2. A novel electromagnetic air damping shock absorber according to claim 1, characterized in that: Five exhaust holes are arranged on both sides of the sleeve, respectively, so as to form a buffer channel together with the buffer conductor tube, thereby generating air damping and ensuring that the gas can be discharged slowly.

3. The buffer conductor tube according to claim 2, characterized in that Both ends are wedge-shaped, which can effectively guide the air flow, reduce the generation of turbulence and eddy currents, improve the flow stability and damping performance of the air, and can move freely on the guide rail.

4. According to the buffer conductor tube and the sleeve of claim 2, the sealing ring is embedded between the buffer conductor tube and the sleeve to form a sealed buffer channel.

5. According to the buffer conductor tube of claim 2, the guide slider is tightly fitted with the buffer conductor tube and remains coaxial with the guide rail rod.

6. A novel electromagnetic air damping vibration absorber according to claim 1, characterized in that: The Halbach permanent magnet array is spirally embedded in the guide rail, which can improve vibration reduction performance, improve ride comfort by enhancing magnetic field concentration, reduce overall weight, and enhance fuel economy by optimizing design.

7. A novel electromagnetic air damping vibration absorber according to claim 1, characterized in that: The small disc is embedded in the guide rail rod and is close to the Halbach permanent magnet array to prevent the Halbach permanent magnet array from being affected by the outside world.

8. A novel electromagnetic air damping vibration absorber according to claim 1, characterized in that: The sleeve is made of insulating hard material, the guide rail rod is made of insulating hard material, the buffer conductor tube is made of iron material, and the Halbach permanent magnet array is made of permanent magnet material.

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