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Swing voice coil motor

A voice coil motor and coil technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems affecting the accuracy of the voice coil motor, control errors, etc., to reduce extra size space, reduce power consumption, and improve control accuracy. Effect

Inactive Publication Date: 2018-01-05
SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual method is to install spring parts to balance and compensate the gravity moment, but this method will affect the accuracy of the voice coil motor itself, and may still cause control errors

Method used

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0018] The present invention provides a rocking voice coil motor, such as figure 2 and Figure 4 As shown, it includes a pole magnet for generating a magnetic field, a coil 1-103 disposed in the pole magnet and a rotating arm 10 connected to the coil, and a weight disposed in the coil 1-103. Torque compensation magnet 1-104, the size and installation position of the gravitational moment compensation magnet 1-104 are adjustable, so that within the rotation stroke of the rotating arm G load l m cosβ=F c (β,Δ...

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Abstract

The present invention provides a swing voice coil motor. A gravity moment compensating magnet is arranged in a coil to allow a swing voice coil motor itself to have a gravity moment passive compensation function in the condition without influencing motion precision of the swing voice coil motor itself, extra dimension spaces caused by other mechanical parts configured to compensate a gravity moment can be effectively reduced, the gravity moment is effectively and accurately compensated, and purposes of reducing power consumption of the swing voice coil motor as a vertical angle actuator and improving control precision are reached.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a swinging voice coil motor. Background technique [0002] The voice coil motor is named for its structure similar to the voice coil of the horn, and it has the characteristics of high frequency response and high precision. Such motors are mainly divided into cylindrical voice coil motors and oscillating voice coil motors. Oscillating voice coil motor (voice coil motor) is a motor that bends the voice coil motor of TMES series to meet the high-performance angular swing. This type of motor can provide a maximum swing angle of 120 degrees and a maximum torque of 50N.m. Typical applications of oscillating voice coil motors are laser mirror reflection technology, rotary valves, dampers, etc. Its markets include the semiconductor industry, automation, industrial, aviation and space industry sectors. Swing voice coil motor SVCM is generally used as a high-precision swing actuator, and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/035
Inventor 季汉川陈庆生邵士良
Owner SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
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