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Bidirectional self-holding electromagnet for achieving position stability based on spring pressure and reluctance force

A technology of spring pressure and magnetic resistance, applied to electromagnets with armatures, electromagnets, circuits, etc., can solve the problems of high power consumption of electromagnets, reduced holding force, and coil heating, etc. The effect of large value and simple structure

Active Publication Date: 2019-08-09
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing electromagnet needs to continuously energize the coil when it is in a stable state, which leads to a large power consumption of the electromagnet, and may cause the coil to heat up, reduce the retention force and cause failure, and then provide a Bidirectional self-holding electromagnet for position stabilization based on spring pressure and magnetic resistance

Method used

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  • Bidirectional self-holding electromagnet for achieving position stability based on spring pressure and reluctance force
  • Bidirectional self-holding electromagnet for achieving position stability based on spring pressure and reluctance force
  • Bidirectional self-holding electromagnet for achieving position stability based on spring pressure and reluctance force

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specific Embodiment approach 1

[0011] Specific implementation mode one: combine Figure 1 to Figure 4 Describe this embodiment, the two-way holding electromagnet of this embodiment comprises yoke 5, moving core 3, and described yoke 5 is provided with cavity, and moving core 3 is positioned at the cavity of yoke 5, and the left end of moving core 3 There is a left push rod 1, and the right end of the moving core 3 is provided with a right push rod 2, which is characterized in that: the present invention also includes a permanent magnet 4, a helical coil 6 and a spring 7, the permanent magnet 4 is a hollow cylinder, and the permanent magnet is sleeved on On the moving core, the helical coil 6 is wound on the outer periphery of the permanent magnet 4, and the spring 7 is sleeved on the outer surface of the right push rod 2.

[0012] There is an air gap between the yoke 5 and the moving core 3, the spring 7 is located between the teeth of the right moving core and the inner surface of the right end cover, and ...

specific Embodiment approach 2

[0015] Specific implementation mode two: combination Figure 1 to Figure 3 Describe this embodiment, the left movable core tooth 3-1 is provided between the movable core 3 and the left push rod 1 of this embodiment, the right movable core tooth 3-2 is provided between the movable core 3 and the right push rod 9, and the left A moving core slot 3-3 is formed between the moving core tooth 31 and the right moving core tooth 32, and the permanent magnet 4 is located in the moving core slot 3-3. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination Figure 1 to Figure 3 To describe this embodiment, the wall thickness of the permanent magnet 4 in this embodiment is not greater than the depth of the moving core groove 3-3. In this arrangement, in order to facilitate the coating treatment of the permanent magnet, the thickness of the outer diameter of the permanent magnet is slightly smaller than the depth of the moving core groove 3-3. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a bidirectional self-holding electromagnet for achieving position stability based on spring pressure and reluctance force, and relates to a bidirectional holding electromagnet.The electromagnet aims to solve the problems that the power consumption of the electromagnet is high, the coil is likely to generate heat and the retention force is reduced to cause the failure because the coil needs to be continuously electrified when a conventional electromagnet is in a stable state. The bidirectional self-holding electromagnet comprises a left push rod, a right push rod, a yoke and a movable core, wherein a cavity is formed in the yoke; the left push rod, the movable core and the right push rod are arranged in a straight line and are sequentially connected into a whole endto end; the movable core is positioned in the cavity; the bidirectional self-holding electromagnet also comprises a permanent magnet, a spiral coil and a spring; the permanent magnet is a hollow cylinder; the permanent magnet and the spiral coil sequentially sleeve the movable core from inside to outside; and the spring sleeves the right push rod. The bidirectional self-holding electromagnet forachieving position stability based on spring pressure and reluctance force is used in the technical field of electromechanics.

Description

technical field [0001] The invention relates to a two-way holding electromagnet, in particular to a two-way self-holding electromagnet capable of realizing position stability based on spring pressure and magnetic resistance. Background technique [0002] Electromagnet is a widely used electromagnetic device. The current electromagnets are basically unidirectional self-holding products, that is, they maintain self-stabilization at a specific position in a certain direction. To achieve a stable position of the electromagnet in the opposite direction, it is necessary to continuously energize the coil and rely on electromagnetic force to maintain the stable state, resulting in high power consumption of the electromagnet, and may cause the coil to heat up, reduce the holding force and cause failure, etc. Problems have limited the application of electromagnets in aerospace, national defense and some high-tech applications. Realizing the two-way self-holding function is the key to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/08H01F7/122H01F7/123
CPCH01F7/08H01F7/122H01F7/123
Inventor 王骞胡建辉郭言李勇赵猛王宝超
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