Electric compressor

Abstract

Electric compressor (10) comprising: a compressor (16) designed to compress a fluid by rotating a rotating shaft (15); an electric motor (17) that rotates the rotating shaft (15); a drive circuit (26) with a circuit board (25) for controlling the electric motor (17); a housing (11) with a receiving space (24) for the printed circuit board (25); a cylindrical connecting section (61) to which an external connection (CN) is connected; and a busbar (50) with a first end that is electrically connected to the external terminal (CN) and a second end that is electrically connected to the circuit board (25), wherein the electric compressor (10) is arranged such that the compressor (16), the electric motor (17) and the drive circuit (26) are arranged in an axial direction of the rotating shaft (15), the electric compressor (10) is arranged such that the connecting section (61) is located radially outside the housing (11) relative to the rotating shaft (15) and is aligned such that an opening (61e) of the connecting section (61) opens away from the compressor (16) and the electric motor (17) in the axial direction of the rotating shaft (15), characterized in that the electric compressor (10) includes a connection element (40) with: - a resin section (60) which is formed integrally with the connecting section (61) and holds the busbar (50) in a state in which the busbar (50) is enclosed by the opening (61e); and - a metallic plate (70) which is formed in one piece with an outer surface (62a) of the resin section (60), the housing (11) has a through-hole (32) which is an opening facing the compressor (16) and the electric motor (17) in the axial direction of the rotating shaft (15) and which is connected to the inside and outside of the receiving chamber (24), an internal threaded bore (33) is formed around the through hole (32) in the housing (11), the metallic plate (70) has a bolt insertion hole (70h) through which a screw connection (71) is inserted, the connecting element (40) is attached to the housing (11), the second end of the busbar (50) being inserted into the through hole (32) and the screw fitting (71) inserted into the bolt insertion hole (70h) being screwed into the internal threaded bore (33), and the second end of the busbar (50) passes through the through hole (32) and is connected to the circuit board (25).

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