Patent ID: 6270320
Filing Date: 2001-08-07
Classification: H02K

Abstract:
An electric motor (10), comprising a fan wheel (14) for forming an axial or radial fan (11), a drive unit (12) and a control unit (17) that has a control housing (18) which surrounds the control unit (17), wherein the drive unit (12) has a stator (22), a rotor (13), and electric coils (25), and the control unit (17) has an electronic circuit for open- or closed-loop control of the supply of current to the coils (25), the drive unit (12) and the control unit (17) surrounded by the control housing (18) are formed by separate modules, and that contact elements (26, 27, 29) associated with one another are provided for mutual electrical connection, and electronic power components (33) are connected to the control housing (18) in electrically insulating and highly heat-conducting fashion, and that the control housing (18) is formed at least in part of a material that is a good heat conductor, and the rotor (13) of the drive unit (12) is connected to the fan wheel (14), and the stator (22) of the drive unit (12) is connected to a stator flange (15), and the stator flange (15) is located between the drive unit (12) and the control unit (17).