Patent · US Active

Pressure equalization element, housing comprising a pressure equalization element, lithium ion accumulator and motor vehicle

US9935301B2 · kind B2 · utility

2Cited by

2References

10Claims

0Family size

Assignees

Robert Bosch GmbH · DE
SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

Michael Gless · Kornwestheim, DE
Ulrich Zimmermann · Waldbrunn, DE

Key dates

Filing date	Mar 12, 2012
Grant date	Apr 3, 2018
Priority date	—
Expiry date	Jun 26, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A pressure equalization element for a housing includes a water-impermeable membrane. The membrane is combined with either a pressure relief valve acting in two directions or with a corresponding combination of two pressure relief valves such that a volume of air exchange is reduced. An amount of moisture transported into the housing is thus also reduced.

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