Electric motor with a fan wheel, for forming an axial or radial fan
AssigneeRobert Bosch GmbH
InventorsMartin Heyder, Wolfgang Schwenk
Life of this patent
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Abstract
A motor with a fan wheel for forming an axial or radial fan, having a drive unit and a control unit that has a control housing. The drive unit has a stator, a rotor, and at least one electric coil, and the control unit has an electronic circuit for open- or closed-loop control of the supply of current to the coil. The drive unit and the control unit are formed by modules, and contact elements associated with one another are provided for mutual electrical connection.
Claims22
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).
Dependencies are inferred from the claim text.