Scroll compressor having rotation prevention mechanism

Abstract

Provided is a scroll compressor having a rotation prevention mechanism including: a housing for accommodating components; a drive unit for generating a rotational force; a suction part for sucking fluid from the exterior; a scroll compression part including a stationary scroll constituted of a spiral scroll wrap for compressing the fluid sucked from the suction part and fixed regardless of rotation of a drive shaft of the drive unit, and an orbiting scroll orbited depending on rotation of the drive shaft and having a spiral scroll wrap; and a discharge part for discharging the high pressure fluid compressed by the scroll compression part, characterized in that a guide ring is installed between the stationary scroll and the suction-side housing, a plurality of fitting pins are installed to project forward from an outer periphery of the orbiting scroll, and a plurality of fitting grooves, in which the fitting pins are accommodated, are formed at an inner periphery of the guide ring.

1 . A scroll compressor having a rotation prevention mechanism including: a housing for accommodating components; a drive unit for generating a rotational force; a suction part for sucking fluid from the exterior; a scroll compression part including a stationary scroll constituted of a spiral scroll wrap for compressing the fluid sucked from the suction part and fixed regardless of rotation of a drive shaft of the drive unit, and an orbiting scroll orbited depending on rotation of the drive shaft and having a spiral scroll wrap; and a discharge part for discharging the high pressure fluid compressed by the scroll compression part,
 characterized in that a guide ring is installed between the stationary scroll and the suction-side housing,   a plurality of fitting pins are installed to project forward from an outer periphery of the orbiting scroll, and   a plurality of fitting grooves, in which the fitting pins are accommodated, are formed at an inner periphery of the guide ring.   
   
   
       2 . The scroll compressor having a rotation prevention mechanism according to  claim 1 , wherein the fitting pins are installed at fitting pin installation parts radially projecting from the outer periphery of the orbiting scroll. 
   
   
       3 . The scroll compressor having a rotation prevention mechanism according to  claim 1 , wherein the housing is constituted of a front housing and a rear housing adjacent to the suction part, a main frame is installed inside the housing to support the drive shaft, and the guide ring is disposed between the stationary scroll and the main frame. 
   
   
       4 . The scroll compressor having a rotation prevention mechanism according to  claim 3 , wherein the stationary scroll and the guide ring are formed of the same material or different materials, and integrally formed with each other when formed of the same material. 
   
   
       5 . The scroll compressor having a rotation prevention mechanism according to  claim 3 , wherein, when seen in an axial direction, the fitting grooves have an arcuate shape. 
   
   
       6 . The scroll compressor having a rotation prevention mechanism according to  claim 3 , wherein the fitting pins and the fitting grooves are disposed on a fluid suction path. 
   
   
       7 . The scroll compressor having a rotation prevention mechanism according to  claim 3 , wherein the fitting grooves are heat-treated or surface-treated.