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AssigneeRobert Bosch GmbH
InventorsArnim Fiebig, Hans-Joachim Baur, Guenter Lohr, Stefan Roepke, Rainer Glauning, Volker Bosch
Estimating the term…
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.
Monitoring device for temperature monrtoring with an accumulator-driven hand-held machining tool, with at least one switch element (12) for separating an electrical consumer (14) from a current supply device (10), wherein for determining a first temperature (TMOTOR) of the consumer (14), a first sensor (16) is connected to the consumer (14), whereby the first sensor (16) is connected with a control input of the switch element (12) and/or with an optical and/or acoustical display unit (26) for controlling a switching process as a function of the first temperature (TMOTOR), and wherein a second sensor (20) is provided in addition to the first sensor (16), wherein the second sensor determines a second temperature (TACCU), whereby both sensors (16, 20) are connected with a control input of the switch element (12), in order to control the switching process as a function of the first temperature (TMOTOR) and the second temperature (TACCU).
Method of operation for a monitoring device for an electrical apparatus with the following steps:
Monitoring device for temperature monitoring with an accumulator-driven hand-held machining tool, with at least one switch element (12) for separating an electrical consumer (14) from a current supply device (10), wherein for determining a first temperature (TMOTOR) of the consumer (14), a first sensor (16) is connected to the consumer (14) and whereby the first sensor (16) is connected with a control unit of the switch element (12) and/or with an optical and/or acoustical display unit (26) for controlling a switching process as a function of the first temperature (TMOTOR), wherein said control unit separates said electrical consumer (14) from said current supply device (10) when said temperature falls short of a minimum value (TMIN1), wherein a second sensor (20) is provided in addition to the first sensor (16), wherein the second sensor determines a second temperature (TACCU), whereby both sensors (16, 20) are connected with a control input of the switch element (12), in order to control the switching process as a function of the first temperature (TMOTOR) and the second temperature (TACCU).
Dependencies are inferred from the claim text.