Self-generating magneto-rheological damper
By introducing self-generating components and heat dissipation components into the shock absorber, the kinetic energy of the vehicle suspension is used to generate electricity and cool it, the problem that existing shock absorbers require external power supply is solved, and normal operation without external power supply is achieved. Safe and stable.
Patent Information
- Application Number
- CN202411407059.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2024-12-27
AI Technical Summary
Existing shock absorbers require external power supply, and unexpected short circuits of the line will lead to the inability to adjust the damping size, which poses safety hazards.
A self-generating magnetorheological shock absorber is designed to drive the piston rod to telescope by using the jumping of the vehicle suspension. The permanent magnet and the coil shell form a reciprocating generator, which generates electrical energy and stores it, and cools down through the heat dissipation assembly and coolant circulation. , realizes work without external power supply.
Eliminate equipment failures caused by accidental line damage, achieve normal operation without external power supply, and prevent the battery and chip from overheating through coolant circulation and cooling, improving the reliability and safety of the equipment.
Smart Images
Figure CN119196234A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of shock absorbers, in particular to a self-generating magnetorheological shock absorber. Background Art
[0002] A shock absorber (also known as a shock absorber or vibration damper) is a device used to slow down and absorb the vibration and impact caused by uneven road conditions during vehicle driving. Vibration is inevitable during vehicle driving, and the shock absorber will expand and contract with the vibration of the vehicle to reduce vibration and impact.
[0003] The existing shock absorber needs an external power supply to power it when working, and the damping size is controlled by adjusting the current. Since the external power supply needs to be connected through a line, if the line is accidentally short-circuited and damaged, the shock absorber will not be able to adjust the damping size.
[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a self-generating magnetorheological shock absorber is proposed. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides a self-generating magnetorheological shock absorber, which solves the problems raised in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a self-generating magnetorheological shock absorber, comprising a shock absorber cylinder and a self-generating component, wherein a piston rod is penetrated through the interior of the shock absorber cylinder, and the self-generating component is sleeved on the outside of the piston rod, and the self-generating component comprises a coil shell, a battery box, a chip box and a permanent magnet, a battery box is fixed to the bottom of the coil shell, and a chip box is arranged on one side of the battery box, and a permanent magnet is arranged inside the coil shell.
[0007] Furthermore, the outer wall of the permanent magnet and the inner wall of the coil shell do not contact each other, and the permanent magnet is fixed to the outer wall of the piston rod.
[0008] Furthermore, the bottom of the battery box and the chip box are fixedly connected to the top of the outer wall of the shock absorber cylinder, and the inner walls of the battery box, the chip box and the coil shell are all provided with channels.
[0009] Furthermore, a heat dissipation component is fixed to the inner wall of the shock absorber cylinder, and the heat dissipation component includes a base ring, a rubber bag and a transmission pressure plate. The rubber bag is fixed to the upper surface of the base ring, and the transmission pressure plate is fixed to the top of the rubber bag.
[0010] Furthermore, the transmission pressure plate is fixedly connected to the outer wall of the piston rod, and the two are not connected while the piston rod passes through the middle of the base ring.
[0011] Furthermore, the rubber bag is an annular hollow structure, and the inner cavity of the rubber bag is annular.
[0012] Furthermore, the heat dissipation assembly also includes a first one-way valve and an injection pipe, and the bottom of the base ring is connected to the injection pipe through the first one-way valve.
[0013] Furthermore, the heat dissipation assembly also includes a second one-way valve and a connecting pipe, and the outer side of the base ring is connected to the connecting pipe through the second one-way valve.
[0014] Furthermore, the top end of the connecting pipe is connected to the channel in the inner wall of the battery box, the chip box and the coil shell.
[0015] Furthermore, the heat dissipation assembly also includes a discharge pipe, the bottom end of the inner wall channel of the coil housing is connected to the discharge pipe, and the ends of the discharge pipe and the injection pipe are both connected to the heat exchanger of the vehicle.
[0016] The present invention provides a self-generating magnetorheological shock absorber, which has the following beneficial effects:
[0017] 1. The self-generating magnetorheological shock absorber does not require an external power supply. It only drives the shock absorber to extend and retract through the vibration of the suspension, and the kinetic energy generated is recovered and the electricity generated can be used for work. Since there is no need for an external power supply through the line, the situation where the shock absorber cannot operate normally due to accidental damage to the line is directly eliminated.
[0018] 2. The self-generating magnetorheological shock absorber, when the piston rod expands and contracts with the bumps of the vehicle suspension, the transmission pressure plate rises and falls to push the rubber bag, and the compression and expansion of the rubber bag continuously promotes the circulation of the coolant to continuously cool the chip box, chip box and coil shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a self-generating magnetorheological shock absorber of the present invention;
[0020] Figure 2 It is a front view structural schematic diagram of a self-generating magnetorheological shock absorber of the present invention;
[0021] Figure 3 It is a schematic cross-sectional structure diagram of a self-generating magnetorheological shock absorber of the present invention;
[0022] Figure 4 The figure is a schematic diagram of the internal structure of a shock absorber cylinder of a self-generating magnetorheological shock absorber of the present invention.
[0023] In the figure: 1. shock absorber cylinder; 2. piston rod; 3. self-generating component; 301. coil shell; 302. battery box; 303. chip box; 304. permanent magnet; 4. channel; 5. heat dissipation component; 501. base ring; 502. rubber bag; 503. transmission pressure plate; 504. first one-way valve; 505. injection pipe; 506. second one-way valve; 507. connecting pipe; 508. discharge pipe. DETAILED DESCRIPTION
[0024] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] like Figure 1-Figure 4 As shown, the present invention provides a technical solution: a self-generating magnetorheological shock absorber, comprising a shock absorber cylinder 1 and a self-generating component 3, wherein a piston rod 2 is penetrated inside the shock absorber cylinder 1, and the self-generating component 3 is sleeved on the outside of the piston rod 2, and the self-generating component 3 comprises a coil shell 301, a battery box 302, a chip box 303 and a permanent magnet 304, a battery box 302 is fixed to the bottom of the coil shell 301, and a chip box 303 is arranged on one side of the battery box 302, a permanent magnet 304 is arranged inside the coil shell 301, an outer wall of the permanent magnet 304 and an inner wall of the coil shell 301 do not contact each other, and the permanent magnet 304 is fixed to the outer wall of the piston rod 2, the bottom of the battery box 302 and the chip box 303 are fixedly connected to the top of the outer wall of the shock absorber cylinder 1, and the inner walls of the battery box 302, the chip box 303 and the coil shell 301 are all provided with a channel 4;
[0026] The specific operation is as follows: the battery box 302, the chip box 303, and the coil shell 301 are fixed on the top of the shock absorber cylinder 1 within the telescopic range of the piston rod 2. The piston rod 2 telescopes along the inside of the shock absorber cylinder 1 as the vehicle is bumpy during driving. The permanent magnet 304 moves synchronously with the reciprocating piston inside the coil shell 301 as the piston rod 2 telescopes. The permanent magnet 304 moving in the reciprocating piston and the coil shell 301 constitute a set of cylindrical linear reciprocating motion generators. The permanent magnet 304 generates electricity as the piston rod 2 rises and falls and stores it in the battery box 302. The chip box 303 monitors the acceleration of the vehicle suspension movement in real time through sensors. When the acceleration is lower than the set threshold, the shock absorber is not powered on and the shock absorber damping cannot be adjusted. When the acceleration reaches the set threshold, the shock absorber starts to be powered on and the current is adjusted according to the control algorithm to control the shock absorber to change the damping.
[0027] Based on the above description, the shock absorber of the present invention does not require an external power supply. It only drives the shock absorber to extend and retract through the vibration of the suspension, and the kinetic energy generated by the recovery of the electricity generated can be used to work. Since there is no need for an external power supply through the line, the situation where the shock absorber cannot operate normally due to accidental damage to the line is directly eliminated.
[0028] like Figure 1-Figure 4 As shown, a heat dissipation component 5 is fixed to the inner wall of the shock absorber cylinder 1, and the heat dissipation component 5 includes a base ring 501, a rubber bag 502 and a transmission pressure plate 503. The rubber bag 502 is fixed to the upper surface of the base ring 501, and the transmission pressure plate 503 is fixed to the top of the rubber bag 502. The transmission pressure plate 503 is fixedly connected to the outer wall of the piston rod 2, and the piston rod 2 passes through the middle of the base ring 501 while the two are not connected. The rubber bag 502 is an annular hollow structure, and the inner cavity of the rubber bag 502 is annular. The heat dissipation component 5 also includes a first one-way valve 504 and an injection pipe 505. The bottom of the base ring 501 is connected to an injection pipe 505 through a first one-way valve 504. The heat dissipation component 5 also includes a second one-way valve 506 and a connecting pipe 507. The outer side of the base ring 501 is connected to a connecting pipe 507 through the second one-way valve 506. The top of the connecting pipe 507 is connected to the battery box 302, the chip box 303, and the channel 4 in the inner wall of the coil shell 301. The heat dissipation component 5 also includes a discharge pipe 508. The bottom end of the channel 4 on the inner wall of the coil shell 301 is connected to the discharge pipe 508, and the ends of the discharge pipe 508 and the injection pipe 505 are both connected to the heat exchanger of the vehicle.
[0029] The specific operation is as follows: when the piston rod 2 is extended and retracted with the bumps of the vehicle suspension, the transmission pressure plate 503 rises and falls accordingly to push the rubber bag 502. When the rubber bag 502 is compressed, the first one-way valve 504 is closed and the second one-way valve 506 is opened. At this time, the coolant inside the rubber bag 502 flows along the connecting pipe 507 through the chip box 303, the chip box 303, and the channel 4 inside the coil shell 301 in sequence, and finally the coolant enters the heat exchanger along the discharge pipe 508. While the coolant flows through the inside of the channel 4, it absorbs the heat inside the chip box 303, the chip box 303, and the coil shell 301, thereby cooling the inside of the chip box 303, the chip box 303, and the coil shell 301, thereby preventing the battery and the chip from overheating;
[0030] When the rubber bag 502 stretches, the first one-way valve 504 opens and the second one-way valve 506 closes. The coolant after heat exchange in the heat exchanger is re-injected into the rubber bag 502 through the injection pipe 505. As the rubber bag 502 compresses and stretches, the coolant is continuously pushed to circulate, thereby continuously cooling the chip box 303, the chip box 303, and the coil shell 301.
[0031] In summary, when the self-generating magnetorheological shock absorber is used, the battery box 302, the chip box 303, and the coil shell 301 are first fixed on the top of the shock absorber cylinder 1 within the telescopic range of the piston rod 2. The piston rod 2 telescopes along the inside of the shock absorber cylinder 1 as the vehicle is bumpy during driving. The permanent magnet 304 moves synchronously with the reciprocating piston inside the coil shell 301 as the piston rod 2 telescopes. The permanent magnet 304 moving in the reciprocating piston and the coil shell 301 constitute a set of cylindrical linear reciprocating motion generators. The permanent magnet 304 generates electricity as the piston rod 2 rises and falls and stores it in the battery box 302. The chip box 303 monitors the acceleration of the vehicle suspension movement in real time through a sensor. When the acceleration is lower than the set threshold, the shock absorber is not powered on and the shock absorber damping cannot be adjusted. When the acceleration reaches the set threshold, the shock absorber starts to be powered on and the current is adjusted according to the control algorithm to control the shock absorber to change the damping.
[0032] When the piston rod 2 is extended and retracted with the bumping of the vehicle suspension, the transmission pressure plate 503 rises and falls accordingly to push the rubber bag 502. When the rubber bag 502 is compressed, the first one-way valve 504 is closed and the second one-way valve 506 is opened. At this time, the coolant inside the rubber bag 502 flows along the connecting pipe 507 through the chip box 303, the chip box 303, and the channel 4 inside the coil shell 301 in sequence, and finally the coolant enters the heat exchanger along the discharge pipe 508. While the coolant flows through the inside of the channel 4, it absorbs the heat inside the chip box 303, the chip box 303, and the coil shell 301, thereby cooling the inside of the chip box 303, the chip box 303, and the coil shell 301, thereby preventing the battery and the chip from overheating;
[0033] When the rubber bag 502 stretches, the first one-way valve 504 opens and the second one-way valve 506 closes. The coolant after heat exchange in the heat exchanger is re-injected into the rubber bag 502 through the injection pipe 505. As the rubber bag 502 compresses and stretches, the coolant is continuously pushed to circulate, thereby continuously cooling the chip box 303, the chip box 303, and the coil shell 301.
[0034] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A self-generating magnetorheological shock absorber, comprising a shock absorber cylinder (1) and a self-generating component (3), characterized in that: A piston rod (2) is inserted into the interior of the shock absorber cylinder (1); the self-generating component (3) is sleeved on the exterior of the piston rod (2); the self-generating component (3) comprises a coil shell (301), a battery box (302), a chip box (303) and a permanent magnet (304); the battery box (302) is fixed to the bottom of the coil shell (301), and a chip box (303) is arranged on one side of the battery box (302); and a permanent magnet (304) is arranged inside the coil shell (301).
2. A self-generating magnetorheological shock absorber according to claim 1, characterized in that: The outer wall of the permanent magnet (304) and the inner wall of the coil shell (301) do not contact each other, and the permanent magnet (304) is fixed to the outer wall of the piston rod (2).
3. The self-generating magnetorheological shock absorber according to claim 1, characterized in that: The bottom of the battery box (302) and the chip box (303) are fixedly connected to the top of the outer wall of the shock absorber cylinder (1), and the inner walls of the battery box (302), the chip box (303) and the coil shell (301) are all provided with channels (4).
4. The self-generating magnetorheological shock absorber according to claim 3, characterized in that: A heat dissipation component (5) is fixed to the inner wall of the shock absorber cylinder (1), and the heat dissipation component (5) comprises a base ring (501), a rubber bag (502) and a transmission pressure plate (503). The rubber bag (502) is fixed to the upper surface of the base ring (501), and the transmission pressure plate (503) is fixed to the top of the rubber bag (502).
5. The self-generating magnetorheological shock absorber according to claim 4, characterized in that: The transmission pressure plate (503) is fixedly connected to the outer wall of the piston rod (2), and the two are not connected while the piston rod (2) passes through the middle of the base ring (501).
6. The self-generating magnetorheological shock absorber according to claim 4, characterized in that: The rubber bag (502) is an annular hollow structure, and the inner cavity of the rubber bag (502) is in a ring shape.
7. The self-generating magnetorheological shock absorber according to claim 4, characterized in that: The heat dissipation assembly (5) further comprises a first one-way valve (504) and an injection pipe (505), and the bottom of the base ring (501) is connected to the injection pipe (505) via the first one-way valve (504).
8. The self-generating magnetorheological shock absorber according to claim 7, characterized in that: The heat dissipation assembly (5) further comprises a second one-way valve (506) and a connecting pipe (507), and the outer side of the base ring (501) is connected to the connecting pipe (507) via the second one-way valve (506).
9. The self-generating magnetorheological shock absorber according to claim 8, characterized in that: The top end of the connecting tube (507) is connected to the battery box (302), the chip box (303), and the channel (4) in the inner wall of the coil shell (301).
10. The self-generating magnetorheological shock absorber according to claim 8, characterized in that: The heat dissipation assembly (5) further comprises an exhaust pipe (508), the bottom end of the inner wall channel (4) of the coil housing (301) is connected to the exhaust pipe (508), and the ends of the exhaust pipe (508) and the injection pipe (505) are both connected to the heat exchanger of the vehicle.