Patent · US Active

Electric machine with an extended surface cooler

US11575297B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Martin Lang · Wegscheid, DE
Thomas Auer · Metnitz, AT
Sebastian Paulik · Ramstein-Miesenbach, DE
Harald Wendl · Vilshofen, DE
Gerhard Obermaier · Albersbach, DE
Maria Lang · Hauzenberg, DE

Key dates

Filing date	May 19, 2020
Grant date	Feb 7, 2023
Priority date	—
Expiry date	Dec 9, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/203
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine includes a stator (1) and a rotor (2), which are arranged in a housing (3). A liquid cooling jacket is configured for cooling the stator (1). At least one extended surface cooler (10), which is connected to the liquid cooling jacket via a housing wall, is provided in an interior of the housing (3) for direct cooling of components arranged in the interior of the housing (3). Moreover, an axle drive of a vehicle may include the electric machine.

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