Patent · US Active

Electric machine having a plastic body

US12126240B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Timo Wehlen · Friedrichshafen, DE
Eckhardt Lübke · Friedrichshafen, DE
Andreas Hölscher · Oberuhldingen, DE
Martin Jelinewski · Nonnenhorn, DE
Manfred Till · Friedrichshafen, DE

Key dates

Filing date	Mar 4, 2020
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Mar 26, 2041

Classification

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

Abstract

An electric machine includes a housing, a stator, a rotor arranged radially within the stator, and a plastic body fixing the stator relative to the housing. The plastic body is electrically insulating. Further, the plastic body radially surrounds an outside of at least one soft magnetic core of the stator and first and second winding overhangs of the stator, and axially surrounds an end face of the first winding overhangs and an end face of the second winding overhangs. Additionally, the plastic body defines at least one channel for accommodating a coolant, the at least one channel having a first portion extending circumferentially along at least 40% of the end face of the first winding overhangs, a second portion extending along an outer circumferential surface of the stator, and a third portion extending circumferentially along at least 40% of the end face of the second winding overhangs.

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