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Resettable dual diamagnetic linear resonant actuator

A double reverse magnetic type and actuator technology, applied in the direction of electrical components, electromechanical devices, etc., can solve problems such as failure to return to the original position, loss of Lorentz force, etc.

Inactive Publication Date: 2017-08-08
TOPRAY MEMS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem with the conventional linear vibration actuator is that the Lorentz force is lost immediately after the coil is de-energized, and the movable part will stop immediately and cannot return to the original position.

Method used

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  • Resettable dual diamagnetic linear resonant actuator
  • Resettable dual diamagnetic linear resonant actuator
  • Resettable dual diamagnetic linear resonant actuator

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Embodiment Construction

[0030]Hereinafter, embodiments according to the present invention will be described in detail with reference to accompanying drawings, so that those skilled in the art can easily understand. The idea described can be implemented in a variety of ways, but should not be limited to these examples. The embodiments of the present invention omit the description of the well-known parts, and the same reference numerals represent the same components in the embodiments of the present invention.

[0031] see Figure 1 to Figure 3 , figure 1 It is a three-dimensional view of the resettable double inverse magnetic linear vibration actuator of the present invention; figure 2 It is an exploded view of the resettable double inverse magnetic linear vibration actuator of the present invention; image 3 It is a schematic diagram of the density of the concentrated magnetic field and the direction of the guiding magnetic field pointing to the coil of the resettable double inverse magnetic line...

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Abstract

A resettable dual diamagnetic linear resonant actuator is disclosed, comprising: a first and a second magnetic induction element, a magnet set and a coil. The magnet set comprises four magnets. The N pole of first magnet, the N pole of second magnet, the S pole of third magnet and the S pole of fourth magnet press respectively against the first, second, third and fourth side of the first magnet induction element. The coil surrounds the first magnetic induction element, the third and fourth magnets, and maintains a distance from the first end and the second end of the first magnetic induction element, and from the N pole of the third and fourth magnets. As such, the movable part formed by the first and second magnetic induction elements and the magnet set can return to original position by magnetic restoration force after cutting electricity off from the coil.

Description

technical field [0001] The invention relates to a linear vibrating actuator, in particular to a resettable double reverse magnetic linear vibrating actuator which generates vibration by means of electromagnetic effects. Background technique [0002] The vibration function of portable electronic products such as mobile phones or tablet computers is generated by internal vibration devices. The most widely used vibration device in the early stage is to use an eccentric rotating motor (Eccentric Rotating Mass) to provide a vibration source. [0003] In recent years, it has gradually become a trend to replace the eccentric rotary motor with a linear vibration actuator (Linear Resonant Actuator) as a vibration device for portable electronic products. The Lorentz force drives the movable part to perform simple harmonic motion to generate vibration, which has a fast response and saves power. [0004] The problem with conventional linear vibration actuators is that the Lorentz forc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/16
CPCH02K33/16H02K33/02
Inventor 简孝名刘锦松
Owner TOPRAY MEMS