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Linear damper

A damper and linear technology, applied in the direction of spring/shock absorber, spring, magnetic spring, etc., can solve the problems of increasing system complexity and achieve the effect of small force fluctuation

Inactive Publication Date: 2015-02-11
SHANGHAI ZUOLIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this type of device, a device must be added outside the brake, which increases the complexity of the system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this example, such as figure 1 As shown, the N pole 102 of the first magnet pair and the S pole 103 of the first magnet pair. It is the magnetic field generating device in the kinematic pair. The first damping pair 101 is another kinematic pair made of hard magnetic material or semi-hard magnetic material. When the first damping pair 101 is moved by v under the external force, a damping force F opposite to the moving direction is generated. There is a first air gap between the first magnet pair and the first damper pair. The trend and direction of the magnetic flux are also drawn in the figure. Due to the existence of external motion or motion tendency, the magnetized state of the first damping pair 101 is different at each moment, and energy must be consumed to change the magnetized state of 101 . This energy is also the added kinetic energy. Thus, firstly, the external energy is dissipated on the damping pair 101, and the kinetic energy is converted into heat ...

Embodiment 2

[0049] In this example, such as figure 2 , image 3 As shown, the number of the second magnet pair is multiple, the number of the second magnet pair is multiple, the different poles of the multiple second magnet pairs are connected in sequence in the axial direction, and the multiple second magnet pairs are connected in sequence. The opposite poles of the magnet pairs in the circumferential direction are sequentially connected to form a ring, and the second damper pair 201 moves along the axial direction of the second magnet pair. The sequential connection of different poles specifically means that the N poles and S poles of adjacent second magnet pairs are connected. The second damping pair is annular, and the second damping pair is arranged outside the magnet pair.

[0050] In the modified example, the second magnet pair is in the form of a ring shape, and a plurality of the magnet pairs are connected in sequence with different poles.

[0051] The trend and direction of ...

Embodiment 3

[0053] This embodiment is on the basis of embodiment 1, as Figure 4 As shown, the energized coil is used instead of the schematic figure 1medium permanent magnet. A certain amount of direct current is fed into the external wire 305, and a magnetic field is generated in the energized coil according to Ampere's law. For a energized coil, changing the direction and magnitude of the current can control the direction and magnitude of the magnetic field. The magnitude of the magnetic field has a direct impact on the damping force in the third damping pair 301 . Therefore, a complete set of online adjustable and controllable linear damping pairs is formed.

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Abstract

The invention provides a linear damper which comprises magnet pairs and damping pairs, wherein the damping pairs move from N poles of the magnet pairs to S poles of the magnet pairs, or move from the S poles of the magnet pairs to the N poles of the magnet pairs; air gaps are reserved between the magnet pairs and the damping pairs; the magnet pairs are multiple; heteropoles of the magnet pairs are sequentially connected in the axial direction; the heteropoles of the magnet pairs are sequentially connected in the circumferential direction; and the damping pairs move in the axial direction of the magnet pairs. The linear damper can generate stable linear damping force, the generated damping force is not sensitive to temperature, vacuum degree, humidity, or other environmental factors, and is also not sensitive to speed, acceleration, vibrational frequency or other movement conditions.

Description

technical field [0001] The present invention relates to a damper, in particular to a linear damper. Background technique [0002] In many occasions, a linear damping force is required. Existing products or technologies generally fall into several categories: [0003] 1. Using the volume change of the fluid (liquid, gas), the movement of the check valve generates a damping force. Its essence is to use the viscosity of the fluid. The structure is simple and the cost is low. But there is an effect of temperature. It also works in a vacuum. It is also sensitive to changes in motion speed and acceleration. It is difficult to produce stable, controllable straight-line damping. The typical application of this solution is automobile shock absorption and damping; [0004] 2. Oil film damping, add a certain amount of oil film in the gap between the kinematic pairs. Control the volume (thickness), viscosity and other parameters of the oil film to change the damping force. Its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F6/00
CPCF16F6/005
Inventor 袁嵘
Owner SHANGHAI ZUOLIN ELECTRIC