Patent · US Expired

Electric drive motor

US6175171A · kind A · utility

35Cited by

7References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernhard Rupp · Eppingen, DE
Gerd Knoepfel · Laufenburg (Baden), DE
Bruno Hoess · Ottersweier, DE

Key dates

Filing date	Dec 14, 1999
Grant date	Jan 16, 2001
Priority date	—
Expiry date	Dec 14, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/207
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric drive motor with a rotor in the form of an external rotor and with a stator, which has a base body comprised of heat conductive material. A bearing hub for the rotor and a support that extends radially away from the hub and is for containing a printed circuit board. The printed circuit board is equipped with electronics and is disposed on a side of the support oriented away from the rotor for the sake of an improved removal of the dissipated heat that is produced in the electronics, a multitude of concentric cooling ribs are embodied on the radial surface of the support oriented toward the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.