Dieter Best

Bio: Dieter Best is an academic researcher from ebm-papst. The author has contributed to research in topics: Electric motor & Internal fan-cooled electric motor. The author has an hindex of 8, co-authored 18 publications receiving 277 citations.

Stator for an electric motor

Abstract: The present invention pertains to a stator for an electric motor, composed of a stator core assembly (2), stator windings (3) and, arranged at one end of the stator core assembly (2), an interconnecting arrangement (4) for the stator windings (3). An interconnecting arrangement (4) features an insulating part (9) with slotted chambers (11) in order to accept electrical connecting leads (12), insulated from each other, in order to interconnect the wire ends (7) of the stator windings (3).

Electronically-commutated external rotor electric motor has motor housing of high IP protection type and annular flange with external cooling ribs integral with bearing sleeve for external rotor

Abstract: The electric motor (1) has a motor housing (2) of high IP protection type, formed in part by the external rotor (6) and in part by an electronics housing (16), enclosing the control electronics (18), the external rotor fitted to a rotor shaft (12) supported by a bearing sleeve (10) within the stator (4). The bearing sleeve is formed integral with an annular flange (22) of a heat conductive material, projecting radially outwards from ther bearing sleeve at the end facing the control electronics and provided with cooling ribs (24) on the outside of the motor housing.

Brushless electric motor with heat sink and mounting arrangement thereof

Abstract: A brushless dc external-rotor motor having a hollow cylindrical heat sink fastened to the peripheral border region of a printed circuit board. Power semiconductors are arranged on an inner cylinder wall of the heat sink in a heat conducting manner, and the cylinder wall forms part of the peripheral border of the stator flange in the motor. A connector fastens Hall generator(s) on the circuit board and provides the electrical connection with the circuit board. The connector can be soldered along with all other electronic components in a joint soldering process, wherein a subassembly of a preassembled circuit board and a heat sink fastened to its periphery and carrying the power semiconductors passes through a solder bath to solder all components in a single soldering process. It is subsequently necessary only to plug the Hall generator or generators onto the connector or connectors soldered onto the circuit board. The connector can include individual contact tubes, which are soldered in the circuit board and into which the connection pins of a respective Hall generator can be plugged.

Electronics housing with partial cooling body

Abstract: The housing (1) has a housing lower part (2) connected with an electric motor, and a conductor plate arranged in the housing. A housing upper part (3) is fitted on the housing lower part. An opening is provided for a heat sink (7) for an electronic component. The opening is arranged in the housing upper part, where the housing upper part is made of plastic. The housing upper part consists of a front wall (4) and a circumferential side wall (5), and a dome-shaped extension is formed on an inner side of the front wall. The opening is arranged in a front side of the extension.

Compact high power alternator

Abstract: An apparatus for converting between mechanical and electrical energy, particularly suited for use as a compact high power alternator for automotive use and “remove and replace” retrofitting of existing vehicles. The apparatus comprises a rotor with permanent magnets, a stator with a winding, and a cooling system. Mechanisms to prevent the rotor magnets from clashing with the stator by minimizing rotor displacement, and absorbing unacceptable rotor displacement are disclosed. The cooling system directs coolant flow into thermal contact with at least one of the winding and magnets, and includes at least one passageway through the stator core. Various open and closed cooling systems are described. Cooling is facilitated by, for example, loosely wrapping the winding end turns, use of an asynchronous airflow source, and/or directing coolant through conduits extending through the stator into thermal contact with the windings.

Insulator for stator assembly of brushless DC motor

Abstract: An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils.

Electric rotating machine

Abstract: An electric rotating machine capable of lowering the temperature of a rotor disposed, wherein at least one of closed ventilation loops for cooling is formed, one of the loops constituting a ventilation passage communicating with an exhaust side through a heat source of the end of the generator to a cooler, thereby to supply cooling wind to the rotor after it passes through the cooler.

Rotary electric machine having a flux-concentrating rotor and a stator with windings on teeth

Abstract: The invention relates to a rotary electric machine comprising a flux-concentrating rotor with permanent magnets disposed between pole pieces, and a stator with windings on teeth.

Rotating electric machine and method for manufacturing the same

Abstract: A conductive member includes a strip conductive portion 24 and an arm portion 22 integral with the strip conductive portion 24 and extending from a side end portion 24 a of the strip conductive portion 24 to be almost parallel in a longitudinal direction, the arm portion being bent in a direction of plate thickness for the strip conductive portion 24.