Patent · US Active

Rotor and method of impregnation of the windings

US11984776B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

Valeo Siemens eAutomotive Germany GmbH · DE

Inventors

Regina Bach · Bad Neustadt an der Saale, DE
Sebastian Beetz · Erlangen, DE
Florian Volkmuth · Erlangen, DE
Christoph Wieczorek · Bad Neustadt an der Saale, DE

Key dates

Filing date	Oct 22, 2021
Grant date	May 14, 2024
Priority date	—
Expiry date	Oct 22, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K15/165
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rotor (1) comprising a rotor shaft (13), a rotor core (14) having a core length, windings (12), and two impregnation rings (11), the windings (12) forming protruding windings ends (121), each one of the two impregnation rings (11) comprising an annular portion (111) and a deflector portion (112), the annular portion (111) comprising radial openings (113); and a method for impregnating the rotor (1) comprising starting a rotation of the rotor shaft (13) and impregnating the windings (12) with an impregnating agent through two nozzles respectively located upward each one of the two impregnation rings (11) and oriented towards the radial openings (113), the impregnation agent being guided by the deflector portion (112) towards the protruding windings ends (121) on both sides of the rotor (1) at a same time, in order to impregnate the windings (12) through the core length.

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