Patent ID: 6198183
Filing Date: 2001-03-06
Classification: F04D,H02K,H05K

Abstract:
An electric drive unit comprising an electric motor and an electronic module that are respectively separable modular components which are connected to each other, wherein:said electric motor comprises a double-walled motor housing including a circumferential inner wall and a circumferential outer wall with a cooling medium flow passage therebetween as well as two end plates extending radially at opposite ends of said circumferential inner and outer walls, and a rotor and a stator arranged within said motor housing;said circumferential outer wall of said motor housing has an opening therein that opens into said cooling medium flow passage;said electronic module comprises a module housing including a module housing wall having a recess therein, a cooling insert received at least partially in said recess and connected to said module housing, and at least one power dissipating electronic functional unit mounted on said cooling insert; andsaid electronic module is releasably connected to said circumferential outer wall of said motor housing at a location radially outwardly thereon so that said recess of said module housing wall is aligned with said opening in said outer wall of said motor housing and said cooling insert is arranged in said opening and exposed to said cooling medium flow passage.