Patent · US Active

Drive unit having a cooling unit

US12188487B2 · kind B2 · utility

0Cited by

2References

5Claims

0Family size

Assignee

INNOMOTICS GMBH · DE

Inventors

Christian Deeg · Altdorf, DE
Harald Kuhn · Frammersbach, DE
Mischa Maidorn · Erlangen, DE
Stefan Mächtel · Hemhofen, DE
Hans Tischmacher · Achern, DE

Key dates

Filing date	Mar 5, 2020
Grant date	Jan 7, 2025
Priority date	—
Expiry date	Mar 10, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive includes a dynamoelectric rotational machine, an electronic add-on part, and a fan unit arranged axially behind one another. The fan unit generates a cooling air flow and is embodied as a two-zone fan having axial fan elements which define a first zone to generate essentially an axial air flow and include an articulated joint with an elastic region with sufficient restoring force, and radial fan blades which define a second zone that radially adjoins the first zone and generate essentially a radial air flow. Free spaces are provided at least between a housing arrangement and the fan unit and/or between the housing arrangement and a bearing shield of the dynamoelectric rotational machine and/or between the housing arrangement and/or a shaft of the dynamoelectric rotational machine, with the free spaces being acted upon during operation of the fan unit by the cooling air flow and a Venturi effect.

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