Electromagnetic shock energy conversion damper

Abstract

The utility model discloses an electromagnetic shock absorption energy conversion shock absorber, solved the existing shock absorber in the use process easy to produce larger noise, and the problem of poor damping effect, the technical scheme that adopts: a kind of electromagnetic shock absorption energy conversion shock absorber, including the damper of common shock absorption effect and the spring of sleeve joint in the outer periphery of damper, damper includes the cylinder and piston of coaxial arrangement together, and piston divides the cylinder into upper chamber and lower chamber, and the piston rod of piston coaxial connection together extends to the outside of cylinder one end, and the outer end of piston rod is fixedly connected with a lifting ring, and the other end side of cylinder is equipped with another lifting ring, its characterized in that, coil and several permanent magnets that can interact are respectively arranged on cylinder and piston, and the wire of coil is connected with the wire that extends to the outside.

Description

Technical Field

[0001] This utility model relates to a shock absorber installed on a vehicle, and more particularly to a shock absorber installed on a motorcycle that can convert shock absorption energy in the form of electromagnetic energy. Background Technology

[0002] The number of motorcycles on the road has been increasing for a long time, becoming an important and indispensable part of the transportation system. Compared with traditional four-wheeled vehicles, motorcycles have a compact body structure, are lighter, and have a narrower wheelbase, making them more susceptible to uneven road surfaces, sudden impacts, or continuous bumps during operation. Frequent and severe vibrations not only affect riding comfort but also threaten vehicle handling and driving safety. The performance of the shock absorption system plays a decisive role in the overall dynamic quality of the vehicle.

[0003] Traditional motorcycles commonly use hydraulic damping shock absorbers. Their working principle involves a piston moving inside a cylinder, driving damping oil through a throttling orifice on the piston combined with a valve plate structure to achieve viscous damping and dissipate the vibration energy generated during motorcycle operation. This type of device is mature in structure, responds quickly, and is cost-effective, thus it has been widely used for a long time. However, this type of hydraulic shock absorber has a fundamental drawback: the mechanical energy generated during vibration is entirely dissipated as heat and cannot be recovered. For energy-constrained new models such as electric motorcycles, this means that recoverable kinetic energy is wasted, neither supplementing the energy management system nor improving the overall energy efficiency of the vehicle. Furthermore, the existing shock absorber structure, due to the cooperation between the valve plate and the oil orifice on the piston, is prone to causing the damping oil temperature to rise and viscosity to decrease during piston movement, thus altering the shock absorber's performance parameters. On the other hand, it also tends to produce sharp noise when the shock absorber is in operation.

[0004] In summary, existing motorcycle shock absorber systems still have significant technological gaps in integrating vibration suppression and energy recovery. On the one hand, a single form of energy recovery mechanism struggles to balance structural compactness and efficiency; on the other hand, while complex solutions possess high energy conversion potential, they are difficult to implement in the motorcycle context. Therefore, there is an urgent need for a novel, compact, efficient, and highly integrated energy regenerative shock absorber technology that can integrate electromagnetic and hydraulic energy recovery pathways. This technology should maximize the recovery of shock absorption energy while meeting the constraints of motorcycle space, weight, and environmental conditions, thereby providing technical support for optimizing overall vehicle energy efficiency and achieving sustainable development goals. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electromagnetic damping energy conversion damper, which converts damping energy in an electromagnetic form during operation.

[0006] To solve the above technical problem, the technical solution of the present utility model is: an electromagnetic shock-absorbing energy conversion shock absorber, comprising a damper and a spring sleeved on the outer periphery of the damper that jointly provide a shock absorbing effect, the damper comprises a cylinder body and a piston that are coaxially arranged, the piston divides the interior of the cylinder body into an upper chamber and a lower chamber, a piston rod coaxially connected with the piston extends to the outside of one end of the cylinder body, a lifting ring is fixedly connected to the outer end of the piston rod, another lifting ring is arranged on the other end side of the cylinder body, characterized in that mutually interactable coils and a plurality of permanent magnets are respectively arranged on the cylinder body and the piston, and a lead wire extending to the outside is connected to the coils.

[0007] The electromagnetic conversion device converts mechanical energy into electric energy during the shock absorbing process; an external resistor can be connected to the coil to consume the mechanical energy generated during the shock absorbing process, or power can be supplied to the charging interface of the vehicle battery through a voltage-boosting clipped wave circuit. An oil passage is arranged between the upper chamber and the lower chamber to allow the flow of shock absorber oil to generate damping force. The oil passage can be arranged outside the cylinder body, can pass through the piston rod, or can be an axially penetrating oil passage arranged in the piston.

[0008] Further, the permanent magnets are arranged on the piston, and the coil is arranged on the outer peripheral surface of the cylinder body. This arrangement is convenient, and the permanent magnets have low sealing requirements for the shock absorber oil.

[0009] Further, an annular installation groove is formed on the outer peripheral surface of the piston, and a plurality of permanent magnets are arranged in parallel in the installation groove. The permanent magnets can be annular, or can be in an opposite semi-annular structure. The split structure of the piston also facilitates the fixing of the permanent magnets.

[0010] Further, the piston comprises a fixing column and at least one fixing body, the fixing body is fixedly connected to the piston rod, the fixing column is fixedly connected to the fixing body, and the installation groove is formed between the fixing column and the fixing body. The fixing with the piston rod is realized through the fixing column and the fixing body, the structure is simple, and the permanent magnets can be well installed and fixed.

[0011] Further, there are two fixing bodies, each fixing body is of a "convex" shape, the two fixing bodies are symmetrically arranged at two ends of the fixing column, two ends of the hollow fixing column are sleeved on the convex heads of the fixing bodies, the outer diameter of the fixing column is smaller than the outer diameter of the fixing bodies to form the installation groove, and the outer peripheral surface of the fixing body fits with the inner peripheral surface of the cylinder body. Fixing nuts can be respectively arranged at two ends of the piston to clamp the permanent magnets. The fixing of the fixing column is realized through the two fixing bodies, the structure is simple, and it is convenient to form a piston with stable structure.

[0012] Furthermore, the fixing column is cylindrical and has several grid structures on it. These grid structures are arranged along the axial direction of the fixing column and evenly distributed along its circumference. The permanent magnet is annular and is fitted onto the bottom surface of the mounting groove. By forming a sealing surface between the fixing body and the cylinder, the piston's pushing requirements for the shock absorber oil can be effectively met. The grid structure effectively reduces the weight of the fixing column.

[0013] Furthermore, an outer casing is provided on the outside of the cylinder at the coil location, the outer casing being used to enclose the coil. The outer casing prevents the coil from being exposed, thus providing protection for the coil.

[0014] Furthermore, the outer casing includes a cylindrical shell and two annular fixing plates. The fixing plates are sleeved and connected to the outer circumferential surface of the cylinder, and are arranged on opposite sides of the coil. The shell is sleeved and fixed to the outer circumferential surface of the fixing plates. The outer casing is designed as a split structure, which facilitates the installation of the outer casing onto the outer circumferential surface of the cylinder and can meet the protection requirements of the coil.

[0015] The beneficial effects of this utility model are as follows: In this shock absorber, the permanent magnet and coil are arranged to adapt to the movement of the piston, so that the mechanical energy generated by the piston during the movement is converted into electrical energy. On the one hand, it can provide damping force when the piston moves, and on the other hand, it can recover the generated electrical energy, thereby improving the energy utilization rate. Attached Figure Description

[0016] Figure 1 This is a 3D view of the shock absorber.

[0017] Figure 2 yes Figure 1 Exploded view.

[0018] Figure 3 This is a longitudinal sectional view of the shock absorber.

[0019] Figure 4 This is a magnified view showing the polarity arrangement of the permanent magnets.

[0020] In the diagram, 1. Lifting ring; 2. Spring; 3. Piston rod; 31. Oil inlet; 32. Oil passage hole; 4. Coil; 5. Permanent magnet; 6. Fixing column; 7. Adjusting nut; 8. Cylinder; 9. Fixing body; 10. Shell; 11. Fixing plate; 12. Fixing nut. Detailed Implementation

[0021] The shock absorber in this application uses linear electromagnetic induction to convert and regenerate energy. It converts the vibration energy generated during motorcycle operation into relative linear motion between a permanent magnet 5 and a coil 4, thereby outputting electrical energy under electromagnetic induction. This type of device typically consists of a permanent magnet 5 and a fixed coil 4, and has advantages such as relatively simple structure, direct output, and ease of control.

[0022] In terms of the structural design of the electromagnetic system, the arrangement of the permanent magnets 5 needs to be considered to improve magnetic flux utilization, achieve uniform magnetic flux density distribution, and reduce magnetic leakage, thereby ensuring the conversion efficiency of the electromagnetic energy recovery system. The Halbach array, as an asymmetric arrangement of permanent magnets 5, can form a unilateral enhanced magnetic field through phase modulation, significantly increasing the magnetic flux density in the induction region and suppressing magnetic leakage. It is expected to improve the power density and efficiency of linear electromagnetic energy recovery systems within limited structural dimensions. Figure 3 The diagram shows the Hallbeck array arrangement of permanent magnets 5, with the polarity of one permanent magnet 5 forming in the radial direction of the cylinder 8, and the polarity of two adjacent permanent magnets 5 forming in the axial direction of the cylinder 8.

[0023] Referring to the accompanying drawings, the structure of this dual-mode energy conversion shock absorber includes a damper that works together to reduce vibration and a spring 2 sleeved around the outer periphery of the damper. The damper consists of a cylinder 8 and a piston coaxially mounted together. The piston divides the interior of the cylinder 8 into an upper and lower chamber, both filled with damping oil. A piston rod 3, coaxially connected to the piston, extends to the outside of one end of the cylinder 8. A lifting ring 1 is fixed to the outer end of the piston rod 3, and another lifting ring 1 is located at the other end of the cylinder 8. In ordinary shock absorbers, the two ends of the spring 2 abut against the two lifting rings 1 respectively. However, as shown in the figure, an adjusting nut 7 is threaded onto the outer circumference of the other end of the cylinder 8, and a tightening nut is located on the outside of the adjusting nut 7. Figure 2 For clarity, the cylinder 8 is shown in two sections. In actual application, the two sections of the cylinder 8 are connected as one piece. One end of the spring 2 presses against the inner end face of the adjusting nut 7. By rotating the adjusting nut 7, the compression of the spring 2 can be adjusted, thereby adjusting the stiffness of the shock absorber.

[0024] To achieve the conversion of damping energy, this damper is equipped with an electromagnetic conversion device, which converts damping energy into electrical energy through electromagnetic means.

[0025] The structure of the electromagnetic conversion device comprises a coil 4 and a plurality of permanent magnets 5 which are respectively arranged on a cylinder body 8 and a piston respectively and can interact with each other. The interaction here means that the coil 4 and the permanent magnets 5 generally overlap in the axial direction of the cylinder body 8, and when relative axial movement occurs between them, the coil 4 cuts magnetic lines of force to generate electric energy.

[0026] The piston is of a split structure, and an annular installation groove is formed on the outer peripheral surface of the piston. A plurality of permanent magnets 5 are installed in the installation groove, these permanent magnets 5 are generally annular, and the plurality of permanent magnets 5 are arranged side by side in the installation groove. The permanent magnet 5 can also be semi-circular, and two semi-circular permanent magnets 5 are arranged opposite to each other to form an integral annular body. The coil 4 is wound on the outer periphery of the cylinder body 8, a cylindrical outer shell is covered on the outer periphery of the coil 4, and the outer shell is made of metal material. The outer shell is of a split structure, and comprises two annular fixing plates 11, and the fixing plates 11 are sleeved and fixedly connected to the outer peripheral surface of the cylinder body 8. The fixing plates 11 can be fixedly connected to the cylinder body 8 by welding, or can be fixedly connected to the cylinder body 8 by threaded connection. Between the two fixing plates 11, the coil 4 is wound on the outer peripheral surface of the cylinder body 8. The outer shell further comprises a cylindrical shell cylinder 10, after the coil 4 is wound, the shell cylinder 10 is sleeved onto the two fixing plates 11. The fixed connection between the two fixing plates 11 and the two ends of the shell cylinder 10 can be realized by welding, or the connection between the two fixing plates 11 and the inner peripheral surfaces of the two ends of the shell cylinder 10 can be realized by threaded connection through rotating the shell cylinder 10. A lead wire extending to the outside of the outer shell is connected to the coil 4. A resistor or a small bulb can be connected in series on the lead wire to consume the electric energy generated by the coil 4, or the lead wire can be connected to an on-board charger to supply the electric energy generated by the coil to a storage battery.

[0027] The piston comprises a hollow fixing column 6 and at least one fixing body 9, the fixing column 6 is sleeved on a piston rod 3, the fixing body 9 is fixedly connected to the piston rod 3, and the fixing column 6 is fixedly connected to the fixing body 9. There are two fixing bodies 9, the fixing bodies 9 are in a "convex" shape, the two fixing bodies 9 are symmetrically arranged, two ends of the fixing column 6 are sleeved on the convex heads of the fixing bodies 9, and the installation groove is formed between the fixing bodies 9 and the fixing column 6. A fixing nut 12 is respectively arranged at two ends of the piston, the fixing nuts 12 are threadedly connected to the piston rod 3, the two fixing nuts 12 realize axial positioning of the two fixing bodies 9, thereby forming a structurally stable piston. Fluid sealing is provided between the outer peripheral surface of the fixing body 9 and the inner peripheral surface of the cylinder body 8, and theoretically, shock absorber oil will not enter the position of the permanent magnets 5.

[0028] In order to realize communication between the upper chamber and the lower chamber in the cylinder body 8, an oil inlet 31 is provided on the piston rod 3 at the position of the lower chamber, an oil through hole 32 is provided in the piston rod 3 along the axial direction thereof, one end of the oil through hole 32 communicates with the upper chamber, and the other end of the oil through hole 32 communicates with the oil inlet 31. Figure 3As shown, one end of the oil passage 32 is located on the end face of the piston rod 3 facing the upper chamber, and the length of the oil passage 32 is greater than the axial length of the piston. Alternatively, an axially penetrating oil hole can be provided within the radial range of the piston to achieve communication between the upper and lower chambers. The inner diameter of the oil passage 32 is smaller than the outer diameter of the piston, allowing the damper oil to generate a certain damping force as it passes through the oil passage 32.

Claims

1. An electromagnetic vibration damping energy conversion damper, comprising a damper that works together to dampen vibration and a spring sleeved around the outer periphery of the damper, the damper comprising a cylinder and a piston coaxially arranged together, the piston dividing the interior of the cylinder into an upper chamber and a lower chamber, a piston rod coaxially connected to the piston extending to the outer side of one end of the cylinder, a lifting ring fixed to the outer end of the piston rod, and another lifting ring provided at the other end of the cylinder, characterized in that, A mutually interactable coil and a plurality of permanent magnets are respectively provided on the cylinder body and the piston, and a wire extending to the outside is connected to the coil.

2. The electromagnetic vibration damping energy conversion damper according to claim 1, characterized in that, The permanent magnets are arranged on the piston, and the coil is arranged on the outer peripheral surface of the cylinder body.

3. The electromagnetic vibration damping energy conversion damper according to claim 2, characterized in that, An annular mounting groove is formed on the outer peripheral surface of the piston, and a plurality of permanent magnets are arranged side by side in the mounting groove.

4. The electromagnetic vibration damping energy conversion damper according to claim 3, characterized in that, The piston comprises a fixed column and at least one fixed body, the fixed body is fixedly connected to the piston rod, the fixed column is fixedly connected to the fixed body, and the mounting groove is formed between the fixed column and the fixed body.

5. The electromagnetic vibration damping energy conversion damper according to claim 4, characterized in that, There are two fixed bodies, each of which is in a "convex" shape. The two fixed bodies are symmetrically arranged at both ends of the fixed column. Both ends of the hollow fixed column are sleeved on the convex heads of the fixed bodies. The outer diameter of the fixed column is smaller than that of the fixed bodies, so as to form the mounting groove, and the outer peripheral surface of the fixed body fits against the inner peripheral surface of the cylinder body.

6. The electromagnetic vibration damping energy conversion damper according to claim 5, characterized in that, The fixed column is cylindrical, and a plurality of grid structures are arranged on the fixed column. These grid structures are arranged along the axial direction of the fixed column and uniformly distributed along the circumferential direction of the fixed column. The permanent magnets are annular, and the permanent magnets are sleeved on the bottom surface of the mounting groove.

7. The electromagnetic vibration damping energy conversion damper according to any one of claims 2 to 6, characterized in that, An outer housing is arranged at the position of the coil on the outer side of the cylinder body, and the outer housing is used for enclosing the coil.

8. The electromagnetic vibration damping energy conversion damper according to claim 7, characterized in that, The outer housing comprises a cylindrical housing cylinder and two annular fixing plates, the fixing plates are sleeved and connected on the outer peripheral surface of the cylinder body, the fixing plates are respectively arranged on opposite sides of the coil, and the housing cylinder is sleeved and fixed on the outer peripheral surfaces of the fixing plates.

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