Linear vibrator

Abstract

There is provided a linear vibrator, including: a housing providing an internal space; an electromagnet having one end fixed to the housing so as to be disposed in the internal space; a vibrating part including a magnet facing the electromagnet and interacting therewith; an elastic member having one end fixed to the housing and the other end fixed to the vibrating part and elastically supporting the vibrating part during vibrating thereof; and a separation prevention member interposed between the other end of the electromagnet and the housing.

What is claimed is: 
     
         1 . A linear vibrator, comprising:
 a housing providing an internal space;   a magnetic field part having one end fixed to the housing so as to be disposed in the internal space;   a vibrating part including an electromagnet facing the magnetic field part and interacting therewith;   an elastic member having one end fixed to the housing and the other end fixed to the vibrating part and elastically supporting the vibrating part during vibrating thereof; and   a separation prevention member interposed between the other end of the magnetic field part and the housing.   
     
     
         2 . The linear vibrator of  claim 1 , wherein the other end of the magnetic field part is provided with a yoke. 
     
     
         3 . The linear vibrator of  claim 1 , wherein the magnetic field part includes a yoke fixed to the housing and a magnet inserted into the yoke. 
     
     
         4 . The linear vibrator of  claim 3 , wherein one end of the yoke is inserted into a seating groove or a seating hole formed in the housing. 
     
     
         5 . The linear vibrator of  claim 3 , wherein the other end of the yoke is provided with a flange protruded in an outer radial direction. 
     
     
         6 . The linear vibrator of  claim 1 , further comprising a shock absorbing member inserted between the separation prevention member and the other end of the magnetic field part.