Linear compressor with sensor

Abstract

Disclosed herein is a linear compressor having a sensor for detecting the position of a piston. The linear compressor has a position-detecting unit for detecting the position of a piston. The position-detecting unit comprises a sensor core mounted such that the sensor core can be moved along with the piston and the position of the sensor core can be adjusted, and a sensor having a detection hole formed therein for detecting the position of the sensor core disposed in the detection hole. The sensor is fixed to a fixing frame. The sensor core is engaged with a core-supporting member in such a manner that the height of the sensor core can be adjusted without using washers for adjusting the height of the sensor, whereby productivity is improved and manufacturing costs are reduced.

1 . A linear compressor having a position-detecting unit for detecting the position of a piston, wherein the position-detecting unit comprises: 
 a sensor core mounted such that the sensor core can be moved along with the piston and the position of the sensor core can be adjusted; and    a sensor having a detection hole formed therein for detecting the position of the sensor core disposed in the detection hole, the sensor being fixed to a fixing frame.    
   
   
       2 . The compressor according to  claim 1 , further comprising: 
 a moving member for linearly reciprocating the piston; and    a core-supporting member having one end fixed to the moving member, wherein the sensor core is mounted to the other end of the core-supporting member.    
   
   
       3 . The compressor according to  claim 2 , wherein the sensor core is fitted on the core-supporting member through the screw engagement of the sensor core and the core-supporting member.  
   
   
       4 . The compressor according to  claim 3 , wherein the sensor core has a female-screw part, and the core-supporting member has a male-screw part engaged with the female-screw part of the sensor core.  
   
   
       5 . The compressor according to  claim 4 , wherein the sensor core is provided with an engagement groove so that the sensor core can be easily rotated by means of a tool inserted in the engagement groove.  
   
   
       6 . The compressor according to  claim 5 , wherein the engagement groove is formed in a straight line at the upper end of the sensor core.  
   
   
       7 . The compressor according to  claim 4 , wherein the sensor core is provided with a stopper wall for preventing the sensor core from being fitted on the core-supporting member above a prescribed distance.