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Linear electromagnetic damper and control method thereof

An electromagnetic damper, linear technology, applied in the direction of magnetic spring, spring/shock absorber, spring, etc., can solve the problems of complex structure, fragile, mechanical wear, etc., to achieve strong environmental adaptability, not easy to damage, use Long life effect

Pending Publication Date: 2019-06-21
ZHONGSHAN FRAE SHOWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the linear hydraulic buffer are: the production of the hydraulic buffer requires a complicated process; it is seriously affected by the temperature, and it cannot be used outdoors in the north; the mechanical wear is serious, and it is easy to break after a long time
The disadvantage of the linear hydraulic shock absorber containing springs is that the springs are prone to damage and completely inelastic deformation
The disadvantages of the motor-type non-energized electromagnetic buffer are: the structure of connecting the motor for deceleration is complicated and easily damaged; the linear non-energized electromagnetic buffer cannot be multi-stage or flexibly adjusted for buffering
The disadvantage of the plug-in electromagnetic buffer is that it must be energized to work, and the buffer force is generated by the magnetism generated by the energization, and the buffer can only be adjusted to an adjustable level

Method used

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  • Linear electromagnetic damper and control method thereof
  • Linear electromagnetic damper and control method thereof
  • Linear electromagnetic damper and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 1-5 As shown, a linear electromagnetic damper includes a linear induction coil unit 1, a linear magnet unit 2, a guide rail 3, a moving assembly 4 and a buffer control unit 5;

[0043] The linear induction coil unit 1 is arranged in the bottom of the guide rail 3; the moving assembly 4 is arranged on the guide rail 3 and moves with the guide rail 3; the linear magnet unit 2 is arranged on the guide rail 3 Under the bottom of the moving assembly 4; the buffer control unit 5 is connected to the linear induction coil unit 1; when the linear induction coil unit 1 and the linear magnet unit 2 are relatively displaced and electromagnetic cutting magnetic force lines occur, the The linear induction coil unit 1 outputs an induction signal to the buffer control unit 5;

[0044] The linear magnet unit 2 is used to make the linear induction coil unit 1 cut the magnetic field lines generated by the linear magnet unit 2 during the movement process;

[0045] The gui...

Embodiment 2

[0049] Embodiment 2 is the further optimization of embodiment 1;

[0050] Such as Figure 1-5 As shown, the linear induction coil unit 1 is a linear induction coil unit, a curved induction coil unit or an arc induction coil unit; the linear magnet unit 2 is a linear magnet unit, a curved type magnet unit or arc line type magnet unit.

Embodiment 3

[0052] Embodiment 3 is the further optimization of embodiment 1;

[0053] Such as Figure 1-5 As shown, the linear induction coil unit 1 includes N coil combinations 11; each coil combination 11 is arranged linearly in the bottom of the guide rail 3 from left to right; the coil combination 11 includes A first-phase induction coil 111, a second-phase induction coil 112, and a third-phase induction coil 113 arranged linearly in sequence; one line end of the first-phase induction coil 111 of each coil combination 11 is sequentially connected in series; each coil combination 11 One wire end of the second phase induction coil 112 of each coil combination 11 is sequentially connected in series; one wire end of the third phase induction coil 113 of each coil combination 11 is connected in series successively; The other wire end of the first-phase induction coil 111 , the other wire end of the second-phase induction coil 112 and the other wire end of the third-phase induction coil 11...

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Abstract

The invention particularly discloses a linear electromagnetic damper. A linear induction coil unit, a linear magnet unit, a guide rail, a moving assembly and a buffering control unit are included, andthe linear induction coil unit is arranged at the bottom of the guide rail. The moving assembly is arranged on the guide rail and movably matched with the guide rail. The linear magnet unit is arranged below the bottom of the moving assembly. The buffering control unit is connected with the linear induction coil unit. The invention further discloses a control method of the linear electromagneticdamper. The control method comprises the steps that firstly, output electric signals of the linear induction coil unit are read; secondly, the moving speed and direction of a moving unit are recognized through the output electric signals; and thirdly, the to-ground conduction voltage threshold value and to-ground conduction on-off states of the buffering control unit are controlled. By means of the linear electromagnetic damper, the speed threshold value of buffering force achieved by the linear magnet unit can be adjusted, and the buffering force can be adjusted as well; and the structure issimple, additional arrangement of a power source is not needed, friction force between components is low, and the service life of products is long.

Description

technical field [0001] The invention relates to the technical field of electromagnetic dampers, in particular to a linear electromagnetic damper and a control method thereof. Background technique [0002] When a magnet passes through a closed-loop aluminum tube, the magnet experiences a force that opposes gravity. Because the magnet will cause the aluminum tube to be magnetized and electrified, the aluminum tube is equivalent to a closed loop, so that the reverse electromotive force can hinder the falling speed of the magnet and form a buffer. The theory of this phenomenon comes from Lenz's law of "rejection, refusal and stay", according to the formula E=BLv (formula explanation: E is the induced electromotive force, L is the inductance of the coil, B is the intensity of the magnetic induction, and V is the speed). When the strength of the induction coil and the magnet is constant, the faster the speed V, the greater the induced electromotive force E, and the higher the ind...

Claims

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Application Information

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IPC IPC(8): F16F6/00
Inventor 杨晓欢
Owner ZHONGSHAN FRAE SHOWER EQUIP
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