Patent · US Active

Active cooling of a motor having an integrated cooling channel

US9531239B2 · kind B2 · utility

11Cited by

3References

15Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Matthias Maschke · Kupferzell, DE
Erik Reichert · Boxberg, DE
Friedrich Schaffert · Schrozberg, DE
Michael Sturm · Bad Mergentheim, DE
Astrid Wunderlich · Niederstetten, DE

Key dates

Filing date	Jul 17, 2013
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Jul 17, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02K11/33
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A motor, comprising an electronics housing having integrated motor electronics, a stator, and a rotor. The stator comprises a stator bushing and a laminated stator core having motor windings. The stator bushing is arranged axially between the electronics housing and the rotor. The motor according to the invention has an air-conveying element connected to the rotor in a rotationally fixed manner and at least one axially extending passage opening arranged in the stator bushing. The air-conveying element is arranged axially between the stator bushing and the rotor and has a circumferential axial intake opening on the side of the stator bushing. During motor operation, the air-conveying element sucks in an axial volumetric air flow at an external wall of the electronics housing through the intake opening and the passage opening.

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