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Half controllable cylindrical linear electromagnetic damper

A linear electromagnetic, cylindrical technology, applied in the direction of magnetic spring, spring/shock absorber, spring, etc., can solve the problem of uncontrollable damping force of permanent magnet eddy current damper, and achieve the effect of improving adaptability

Active Publication Date: 2016-08-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problem that the damping force of the permanent magnet eddy current damper is uncontrollable, and the invention provides a semi-controllable cylindrical linear electromagnetic damper

Method used

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  • Half controllable cylindrical linear electromagnetic damper
  • Half controllable cylindrical linear electromagnetic damper
  • Half controllable cylindrical linear electromagnetic damper

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specific Embodiment approach 1

[0069] Specific implementation mode one: see figure 1 , 2 , 3, 4, 5, 6 and 10 illustrate this embodiment, the semi-controllable cylindrical linear electromagnetic damper described in this embodiment, it includes primary 1, secondary 2, uncontrollable three-phase rectifier bridge 3, Diode D1, resistor R, capacitor C and power switch tube S;

[0070] The primary 1 includes a conductor ring 1-1, a three-phase winding 1-2, a primary magnetic yoke ring 1-3 and a primary sleeve 1-4,

[0071] The secondary 2 includes a secondary sleeve 2-1, a permanent magnet 2-2 and an interpole core 2-3,

[0072] The primary 1 is a cylindrical structure, from inside to outside: conductor ring 1-1, three-phase winding 1-2, primary magnetic yoke ring 1-3 and primary sleeve 1-4, three-phase winding 1-2 wound on the conductor ring 1-1, and the three-phase current output end of the three-phase winding 1-2 is connected to the three-phase current input end of the uncontrollable three-phase rectifier br...

specific Embodiment approach 2

[0080] Specific implementation mode two: see figure 1 , 2 , 3, 4, 5, 6 and 11 illustrate this embodiment, the semi-controllable cylindrical linear electromagnetic damper described in this embodiment, it includes primary 1, secondary 2, controllable three-phase rectifier bridge 4, resistor R and capacitor C;

[0081] The primary 1 includes a conductor ring 1-1, a three-phase winding 1-2, a primary magnetic yoke ring 1-3 and a primary sleeve 1-4,

[0082] The secondary 2 includes a secondary sleeve 2-1, a permanent magnet 2-2 and an interpole core 2-3,

[0083] The primary 1 is a cylindrical structure, from inside to outside: conductor ring 1-1, three-phase winding 1-2, primary magnetic yoke ring 1-3 and primary sleeve 1-4, three-phase winding 1-2 wound on the conductor ring 1-1, and the three-phase current output end of the three-phase winding 1-2 is connected to the three-phase current input end of the controllable three-phase rectifier bridge 4,

[0084] The DC output por...

specific Embodiment approach 3

[0089] Specific implementation mode three: see figure 1 , 2 , 3, 4, 5, 6, 10 and 11 illustrate this embodiment. The difference between this embodiment and the semi-controllable cylindrical linear electromagnetic damper described in Embodiments 1 and 2 is that the permanent magnet 2 The outer diameter of -2, the outer diameter of the interpolar core 2-3 and the inner diameter of the secondary sleeve 2-1 are the same.

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Abstract

A half controllable cylindrical linear electromagnetic damper belongs to the technical field of motors and solves the problem that the damping force of a permanent magnet vortex damper is uncontrollable. The half controllable cylindrical linear electromagnetic damper consists of a primary, a secondary, a three-phase rectifier bridge and a peripheral circuit, wherein the primary comprises a conductor loop, three-phase windings, a primary magnetic conductive yoke ring and a primary sleeve; the three-phase windings are directly wound on the conductor ring; outgoing lines of the three-phase windings are rectified by the three-phase rectifier bridge and connected with an external resistor; the three-phase rectifier bridge is uncontrollable or controllable; the secondary comprises magnets, a secondary sleeve and the like, and the magnets adopt axial magnetization or radial magnetization. The half controllable cylindrical linear electromagnetic damper combines passive damping with active damping, has the advantage of large and controllable damping force and is mainly used for controlling the damping force.

Description

technical field [0001] The invention belongs to the technical field of motors. Background technique [0002] The permanent magnet eddy current damper is a device that uses the interaction between the permanent magnet magnetic field and the conductor eddy current magnetic field to generate a damping force. It has the advantages of non-contact, friction-free, and noise-free. It has good application prospects in high-precision instruments and equipment. However, since the permanent magnet eddy current damper is generally only composed of passive components such as permanent magnets, conductor plates, and magnetic yoke plates, it does not have the ability to adjust the damping force, which limits its further application in some occasions. [0003] In order to obtain the controllability of the damping force, electric excitation eddy current dampers are mostly used at present, and the strength of the magnetic field is controlled by changing the excitation current, thereby changin...

Claims

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Application Information

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IPC IPC(8): F16F6/00
CPCF16F6/00
Inventor 张赫寇宝泉刘奉海张鲁
Owner HARBIN INST OF TECH
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