Patent · US Active

Motor vehicle auxiliary assembly electric motor

US10243421B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

PIERBURG PUMP TECHNOLOGY GMBH · DE

Inventors

Wolfgang Haensch · Magdeburg, DE
Maik Waberski · Neustadt, DE
Michael Weinert · Leisnig, DE
Joerg Hartzendorf · Betzdorf, DE
Ronald Rathke · Döbeln, DE
Thomas Wienecke · Willich, DE

Key dates

Filing date	Jan 23, 2015
Grant date	Mar 26, 2019
Priority date	—
Expiry date	Apr 22, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2205/09
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A motor vehicle auxiliary assembly electric motor includes a motor stator with stator coils. The motor stator is electronically commutated. A control electronics system drives the stator coils and is potted in a cast body. An electronics chamber is closed-off and has the control electronics system and the cast body arranged therein. A gas chamber is arranged adjacent to the cast body. A pressure equalization element ventilates and vents the gas chamber. An aeration shaft is arranged to pass through the cast body and fluidically connects the gas chamber to the atmosphere. The pressure equalization element is fluidically associated with the aeration shaft.

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