Patent · US Active

Safety switch device for a high-voltage battery of a motor vehicle, high-voltage battery, on-board power supply system and motor vehicle

US10966285B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Thomas HAMMERSCHMIDT · Unterschleißheim, DE
Jose LOPEZ DE ARROYABE · Munich, DE
Simon NUERNBERGER · Munich, DE
Jan Philipp SCHMIDT · Munich, DE

Key dates

Filing date	Jun 7, 2019
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Jun 7, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A safety switch device connects a heating unit for at least one battery cell of a high-voltage battery of a motor vehicle to a power supply connection that provides a heating current for the heating unit. The device includes: a first controllable switching element arranged in a heating current transmission path, which is designed to receive a control signal supplied by a unit external to the high-voltage battery via a signal transmission path of the safety switch device and to generate heating current transmission between the heating unit and the power supply connection according to the received control signal; a separating unit arranged in the heating current transmission path, for interrupting the heating current transmission in the event of failure of the first switching element; and a transmission unit arranged in the signal transmission path, which is designed to transmit the control signal potential-free to the first switching element, for the galvanic separation of the high-voltage battery and the unit.

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