Electric compressor

Abstract

An electric compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover attached to the housing to accommodate the inverter between the cover and the housing. The cover is constituted of a metal frame portion and a resin portion covering the frame portion to surround surfaces of the frame portion. The frame portion has a plate-like portion and a peripheral wall portion extending from an outer peripheral edge of the plate-like portion toward the housing. The peripheral wall portion has concaves and convexes including at least one of a concave portion recessed in a thickness direction of the plate-like portion and a convex portion protruding in the thickness direction of the plate-like portion, at an end portion which is far from the plate-like portion. The resin portion is engaged with the concaves and convexes.

What is claimed is: 
     
         1 . An electric compressor, comprising:
 a compression mechanism for compressing a fluid;   an electric motor for driving the compression mechanism;   an inverter for driving the electric motor;   a housing for accommodating the compression mechanism and the electric motor; and   a cover attached to the housing to accommodate the inverter between the cover and the housing, wherein   the cover is constituted of a metal frame portion and a resin portion covering the frame portion to surround surfaces of the frame portion,   the frame portion has a plate-like portion and a peripheral wall portion extending from an outer peripheral edge of the plate-like portion toward the housing,   the peripheral wall portion has concaves and convexes including at least one of a concave portion recessed in a thickness direction of the plate-like portion and a convex portion protruding in the thickness direction of the plate-like portion, at an end portion which is far from the plate-like portion, and   the resin portion is engaged with the concaves and convexes.   
     
     
         2 . The electric compressor according to  claim 1 , wherein the concaves and convexes are provided continuously. 
     
     
         3 . The electric compressor according to  claim 2 , wherein the concaves and convexes are provided continuously along an entire perimeter of the peripheral wall portion. 
     
     
         4 . The electric compressor according to  claim 1 , wherein the peripheral wall portion includes concave and convex portions provided continuously when viewed in the thickness direction of the plate-like portion. 
     
     
         5 . The electric compressor according to  claim 4 , wherein the concave and convex portions are provided continuously along an entire perimeter of the peripheral wall portion.