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Magnet actuator for an electronic device and electronic device comprising said magnet actuator

A technology of electronic equipment and exciters, which is applied in the direction of electromechanical sensors, fluids using vibration, instruments, etc., can solve the problems of time-consuming maintenance, dimensional tolerance changes, and high cost

Active Publication Date: 2020-12-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any possible defects due to changes in dimensional tolerances of each individual element in the structure, changes in forces between magnets or changes in forces caused by elastic support elements can only be seen after assembly, subsequent repairs are time-consuming and costly high

Method used

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  • Magnet actuator for an electronic device and electronic device comprising said magnet actuator
  • Magnet actuator for an electronic device and electronic device comprising said magnet actuator
  • Magnet actuator for an electronic device and electronic device comprising said magnet actuator

Examples

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Embodiment Construction

[0041] figure 1 and Figures 2a to 2c An embodiment of a magnet actuator 1 according to the invention is shown.

[0042] The magnet actuator 1 includes a first housing 5 , a second housing 6 , a coil 3 and a magnet 4 . The coil 3 includes a plurality of coil windings, and is at least partially located in the first casing 5 and fixed on the first casing 5 . In one embodiment, the coil 3 is fixed on the inner surface 5a of the first housing 5 by adhesive. The magnet 4 is at least partly located in the second casing 6 and fixed on the second casing 6 . In one embodiment, the magnet 4 is fixed on the inner surface 6a of the second housing 6 by adhesive. In one embodiment, said magnet actuator 1 comprises only one magnet, eg said magnet 4 . No other magnets are arranged between the shells 5 and 6 .

[0043] Said first housing 5 comprises a magnetic material, such as metal, so that said first housing 5 acts as a counter force to the static attractive force F. Therefore, the m...

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PUM

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Abstract

A magnet actuator (1) for use in an electronic device (2) comprising a coil (3), a magnet (4), a first housing (5), and a second housing (6), the coil (3) being at least partially located within, andfixed to, the first housing (5), the magnet (4) being at least partially located within, and fixed to, the second housing (6). The first housing (5) comprises a magnetic material, and a magnetic field, generated by the magnet (4) and the first housing (5) causes an attractive force (F) between the magnet (4) and the first housing (5), the magnet (4) and the first housing (5) being in a force equilibrium state, wherein an air gap (7) is provided between the magnet (4) and the coil (3). Manipulating electrical current in the coil (3) causes a change in the attractive force (F), thereby causing adisplacement between the magnet (4) and the first housing (5), allowing vibrations to be generated within the electronic device (2).

Description

technical field [0001] The invention relates to a magnet actuator for electronic equipment, which includes a coil, a magnet, a first casing and a second casing. Background technique [0002] Electronic devices may be equipped with magnetic actuators to generate, for example, sound waves. Prior art magnet actuators include magnets that attract or repel each other. Initially, the magnets are set to force balance, but in order to generate sound waves, the attractive or repulsive force between the magnets is changed by passing an electric current through a coil located between the magnets, which moves at least one of the magnets , so that the distance between the magnets decreases or increases. [0003] As disclosed in GB2532436, the magnets may be connected to each other by elastic support elements which counteract the attractive or repulsive forces between the magnets so that as long as there is no current flow, said magnets and said elastic support elements are in force bal...

Claims

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Application Information

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IPC IPC(8): H04R11/02H04R7/04B06B1/04G10K9/13G10K9/22
CPCH04R7/045H04R11/02H04R2440/07G10K9/13G10K9/22B06B1/045
Inventor 彼得·凯斯基奥帕斯乔尼·塔皮欧·梅基贾尼·苏科拉耶尔基·洛希科斯基
Owner HUAWEI TECH CO LTD
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