Abstract: An electric drive unit includes an electric motor for driving a fan. The motor has an electronic control module. An impeller wheel for producing a working air flow is mounted by bearings on an axle of the electric motor. The hub of the impeller wheel has at least one preferably two walls enclosing a cooling space or cooling space portions. At least one cooling surface of a cooling body is in contact with components of the electronic control module and projects into the cooling space. A gap formed between the hub of the impeller wheel and a carrier section communicates with an inner hub space. Holes (43, 322) communicating with the hub inner space are provided in at least one component of the electric drive unit. When the impeller wheel rotes a convection cooling air flow is established between the gap and the holes.

Abstract: An electromechanical subassembly has a cover control module equipped with a printed circuit and with first contacts, a mechanical module equipped with second contacts and a support module for securing the cover control module and the mechanical module to the support module. The support module includes first electrical terminals for contacting the first contacts, second electrical terminals for contacting the second contacts and at least one electrical connector for contacting the electromechanical subassembly and the control circuit forming part of the cover.

Abstract: The invention relates to an electromechanical sub-assembly comprising a control module equipped with first contacts, a mechanical module equipped with second contacts and a support module for fixing the control module and the mechanical module. The support module comprises first terminals for contacting the first contacts, second terminals for contacting the second contacts and at least one connection device for contacting the electromechanical sub-assembly.

Abstract: The invention relates to an electric drive unit comprising an electronic control module and an electric motor. The cooling of the components of the electric drive unit should be effected in a simple manner. To this end, the hub of the impeller wheel, which is situated on the rotation axis of the electric motor and provided for producing a working air flow, has a two-walled design, whereby a hub inner space is formed between the outer wall and the inner wall of the hub of the impeller wheel. At least one cooling surface of the cooling body, said surface being in contact with components of the electronic control module, projects into the hub inner space. A gap communicating with the hub inner space, is formed between the hub of the impeller wheel and a carrier section which supports the electronic control module and the electric motor. In addition, through-holes communicating with the hub inner space are provided in at least one component of the electric drive unit.