Scroll Compressor

Abstract

The invention provides a scroll compressor in which a movable scroll is supported from a back face with a plurality of thrust plates without being inclined. The scroll compressor of the invention has a compression unit including a movable scroll made up by forming a vortical wrap in an end wall and a similar fixed scroll, and being capable of carrying out compression along with an orbiting movement of the movable scroll with the wraps of the scrolls engaged with each other; a movable-scroll receiving support surface formed on a back-face side of the end wall of the movable scroll and including a flat face opposite to the back face of the end wall; and a plurality of thrust plates that are scattered in the support surface along a circumferential direction of the movable scroll, slidably supports the back face of the end wall of the movable scroll, and receives a thrust load from the movable scroll. The thrust plates are fixed onto the flat face of the support surface so as to be supported with the flat face by using the flat face as reference.

1 . A scroll compressor comprising: a compression unit including a movable scroll made up by forming a vortical wrap in an end wall and a similar fixed scroll, and being capable of carrying out compression along with an orbiting movement of the movable scroll with the wraps of the scrolls engaged with each other;
 a movable-scroll receiving support surface formed on a back-face side of the end wall of the movable scroll and including a flat face opposite to the back face of the end wall; and   a plurality of thrust plates that are scattered in the support surface along a circumferential direction of the movable scroll, slidably supports the back face of the end wall of the movable scroll, and receives a thrust load from the movable scroll, wherein:   the thrust plates are fixed onto the flat face of the support surface so as to be supported with the flat face by using the flat face as reference.   
     
     
         2 . The scroll compressor according to  claim 1 , wherein each of the thrust plates has a projection protruding toward the support surface; the support surface has a hole that opens toward the corresponding thrust plate; and each of the thrust plates is fixed onto the support surface by interfitting the corresponding projection into the corresponding hole. 
     
     
         3 . The scroll compressor according to  claim 1 , wherein the support surface has a projection protruding toward the corresponding thrust plate; each of the thrust plates has a hole that opens toward the support surface; and each of the thrust plates is fixed onto the support surface by interfitting the corresponding projection into the corresponding hole.