Electric compressor

An electric compressor is disclosed. According to an embodiment of the present invention, in an electric compressor, the depth of a first groove formed in an oil separation unit increases as the distance from a discharge hole along the rotation direction of refrigerant increases, thereby separating the oil contained in the refrigerant. In the present embodiments, when forming a rear housing by casting, an oil separator can be formed through an oil separation structure forming means, which can lead to convenience in manufacturing and cost reduction by eliminating the drilling process. 전동 압축기가 개시된다. 본 발명의 일실시 예에 따른 전동 압축기는 냉매의 회전 방향을 따라 상기 토출 홀에서 멀어질수록 오일 분리부에 형성된 제1 홈부의 깊이가 증가되면서 냉매에 포함된 오일에 대한 분리가 이루어진다.