Patent · US Expired

Monitoring device, electrical machine tool, current supply device, and associated method of operation

US7095235B2 · kind B2 · utility

8Cited by

10References

24Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Arnim Fiebig · Echterdingen, DE
Hans-Joachim Baur · Echterdingen, DE
Guenter Lohr · Echterdingen, DE
Stefan Roepke · Graz, AT
Rainer Glauning · Echterdingen, DE
Volker Bosch · Stuttgart, DE

Key dates

Filing date	Mar 18, 2003
Grant date	Aug 22, 2006
Priority date	—
Expiry date	Mar 18, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02H11/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A monitoring device for an electrical machining tool, in particular for temperature monitoring with an accumulator-driven machine, includes a switch element (12) for separating an electrical consumer (14) from a current supply device (10). For detection of a first operating parameter (TMOTOR) of the consumer (14) and/or the current supply device (10), a first sensor (16) is provided, whereby the first sensor (16) is connected with a display unit and/or with the control input of the switch element, in order to control the switching process as a function of the first operating parameter (TMOTOR). Furthermore, the present invention relates to an electrical machining tool as well as a current supply device with the inventive monitoring device and a corresponding method of operation.

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