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Linear vibrator

A linear vibrator, vibration unit technology, applied in the direction of fluid, electrical components, electromechanical devices that utilize vibration, can solve problems such as weakening of magnetic force, damage to coils, and difficulty in ensuring vibration characteristics

Inactive Publication Date: 2010-11-10
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the magnetic force is weakened, causing undesired slight vibrations
Therefore, it is difficult to guarantee reliable vibration characteristics
If the distance of the air gap AG between the magnet 26 and the coil 62 is reduced in order to overcome the above-mentioned deficiency in the magnetic force, the magnet 26 or the plate-like yoke 28 may come into contact with the coil 62 when vibrating or being subjected to an external force, thereby Damage Coil 62

Method used

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Embodiment Construction

[0030] Referring now to the drawings, in which the same reference numerals are used throughout the different drawings to identify the same or similar parts. In the following description, if it is determined that a detailed description of conventional functions and conventional structures would obscure the gist of the present invention, such descriptions may be omitted. In addition, the terms and words used in this specification and claims are not necessarily limited to their typical or dictionary meanings, but should be understood to represent the concept chosen by the inventor as the best way to explain the present invention, And it should be understood as having meanings and concepts suitable for the scope and spirit of the present invention for understanding the technology of the present invention.

[0031] Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.

[0032] image 3 is a sectional view of ...

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Abstract

The present invention provides a linear vibrator which can enhance the assembly accuracy and prevent a vibration unit from coming into direct contact with a coil or a casing. The linear vibrator includes a vibration unit, a casing, a bracket and a spring member. The vibration unit includes a plate yoke which has a weight on an upper surface thereof, and an annular magnet which is arranged on the plate yoke and surrounds the weight. The casing has an internal space for receiving the vibration unit therein. The bracket is coupled to the lower end of the casing. A cylindrical coil is arranged onthe bracket such that the vibration unit linearly vibrates in the cylindrical coil. The spring member is arranged in the upper end of the casing to elastically support the vibration unit such that the vibration unit linearly vibrates.

Description

[0001] Related Application Cross Reference [0002] This application claims the benefit of Korean Patent Application No. 10-2009-0038906, filed May 4, 2009, entitled "Linear Vibrator," the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a linear vibrator. Background technique [0004] Generally, portable electronic devices such as mobile phones, game machines, mobile information terminals, etc. have various vibration generating units to prevent noise from the electronic devices from disturbing others. Specifically, such a vibration generating unit is installed in a cellular phone and used as a mute signal reception indicating unit (including touch vibration). Recently, in line with the trend of providing slim-type cellular phones, vibration generating units mounted in cellular phones are also required to be reduced in size and enhanced in function. [0005] Currently, a vibration generating unit, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/18
CPCH02K33/18B06B1/04
Inventor 全荣在
Owner SAMSUNG ELECTRO MECHANICS CO LTD