Patent · US Active

Bypass circuit at a rechargeable battery

US11355789B2 · kind B2 · utility

1Cited by

0References

10Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Klaus HAUSER · Pfänderhof, DE
Michael CANDUSSIO · Olching, DE
Stefan Mayer · Glückstadt, DE
David KOSCHECK · Augsburg, DE
Markus Forstner · Landsberg, DE

Key dates

Filing date	Jul 23, 2018
Grant date	Jun 7, 2022
Priority date	—
Expiry date	Feb 27, 2039

Classification

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

Abstract

Rechargeable battery for a machine tool containing at least one energy storage cell and also one switching apparatus. The rechargeable battery contains a bypass circuit which can be operated in a first and second mode, wherein the bypass circuit is in an inoperative state in the first mode, so that an electric current with a first current value passes from the at least one energy storage cell to the machine tool via the switching apparatus, and wherein the bypass circuit is in an operating state in the second mode, so that an electric current with a second current value passes from the at least one energy storage cell to the machine tool via the bypass apparatus, and wherein the first current value is greater than the second current value. The bypass circuit contains a comparator for comparing a current value which is required by the machine tool with a stored current threshold value, so that, via switching element, the bypass circuit is switched to the first mode when the current value which is required by the machine tool exceeds the threshold value and the bypass circuit is switched to the second mode when the current value which is required by the machine tool falls below the t…

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