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Voice coil motor

A voice coil motor and coil technology, which is applied to electrical components, electromechanical devices, electric components, etc., can solve the problems of reducing the reliability of the voice coil motor, easy access to the inside of the housing, damage to the voice coil motor, etc. The effect of unstable center of gravity and reduced air resistance

Active Publication Date: 2016-08-24
SUZHOU UNITE PRECISION MACHINERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual use, the existing voice coil motor has an opening on the housing, and the coil is slid to be arranged in the opening, and a permanent magnet is arranged in the opening, but due to the existing voice coil motor, the housing is open. In this way, impurities such as dust, iron filings and dust can easily enter the casing, causing a short circuit in the coil, causing certain damage to the voice coil motor, and reducing the reliability of the voice coil motor.
[0005] After the voice coil motor is installed on the slide table, since the dust is easy to adhere to the coil, the voice coil motor needs to be dismantled and cleaned regularly, and the maintenance cost is high

Method used

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Embodiment 1

[0036] A voice coil motor, refer to figure 1 as well as figure 2 , including a housing 1, the housing 1 is hollow, an opening is provided on the end surface of the housing 1, a mover 3 is provided for sliding in the housing 1, and a coil 31 is wound on the mover 3, in order to lower the mover 3 The weight of the mover 3 can avoid excessive energy loss during the sliding process. The mover 3 is hollow. The mover 3 is made of aluminum alloy, which is light in weight, high in strength and not easy to be damaged. Moreover, the aluminum alloy is not a magnetic metal and will never be damaged. The magnetic field generated by the magnet 5 will not affect the movement of the mover 3, and the permanent magnet 5 is provided in the housing 1. In this embodiment, the permanent magnet 5 is arranged in a circular array on the inner wall of the opening, and the permanent magnet 5 is bonded The method is fixed, the structure is simple, and the processing is convenient. The permanent magnet ...

Embodiment 2

[0042] refer to Figure 5 , the difference from Embodiment 1 is that in this embodiment, the permanent magnet 5 is embedded in the iron core 6, and the permanent magnet 5 is embedded in the iron core 6, which can better protect the permanent magnet 5. The function is to prevent the permanent magnet 5 from being damaged during use, and, during processing, the permanent magnet 5 can be fixed on the iron core 6 first, and then the iron core 6 can be installed in the housing 1, and the installation is also very convenient.

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Abstract

The invention discloses a voice coil motor. The technical scheme of the voice coil motor is characterized in that: the voice coil motor includes a housing; a mover is arranged in the housing; a coil winds around the mover; an opening is formed in the end surface of the housing; the mover is arranged in the opening in a sliding way; a permanent magnet is arranged in the housing; an end cap is arranged at the opening of the housing; a siding column is arranged on the mover; and the siding column is in sliding connection with the housing, and stretches out from the housing. For the voice coil motor, as the end cap which can seal the opening of the housing is configured, the dust can be prevented from entering the housing and the reliability of the voice coil motor during the working process is improved; and the siding column can be used as an output end to connect with a driven device of the next level.

Description

technical field [0001] The present invention relates to a motor, more particularly, it relates to a voice coil motor. Background technique [0002] Voice coil motors have gained popularity in recent years, especially in equipment used to manufacture electronic components and semiconductors. As we all know, the advantages of using voice coil motors are high acceleration, high speed, high precision, reduced moving mass, no simplified design of complex transmission system, and no wear and tear on moving parts and transmission mechanism, which has good reliability. For the machine tool machining industry, due to the machining method of the machine tool, there will be debris, liquid splashing or electric sparks, which will affect the normal operation of the voice coil motor. [0003] In the components of semiconductor packaging equipment, it is necessary to design a large-thrust and small-stroke voice coil motor with good heat dissipation effect to meet the high-speed and high-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10H02K33/18
CPCH02K5/10H02K33/18
Inventor 向前鼎沈美英
Owner SUZHOU UNITE PRECISION MACHINERY TECH CO LTD