Abstract: A measuring arrangement, in particular, for temperature measurement in an accumulator pack, with at least one cell (10) for storage of electrical energy, at least one cooling body (12) thermally connected with the cell (10) for cooling the cell (10), and at least one temperature sensor (14). The temperature sensor (14) is thermally connected with the cooling body (12).

Abstract: A measuring arrangement, particularly for measuring the temperature of an accumulator cell, includes an object of measurement (10), a support element (14), and a temperature sensor (12) electrically connected with the support element (14). The temperature sensor (12) is mounted on the support element (14) and is thermally connected with the object of measurement (10). The invention relates further to an energy storage module with this type of measuring arrangement, as well as to an electrical apparatus with this type of energy storage module.

Abstract: A contact arrangement for providing an electrical plug connection between an electrical device and an exchangeable storage battery for a current supply of the electrical device has a plug part having at least one contact tong with two oppositely located contact surfaces, a receiving part having at least two oppositely located contact fingers between which the contact tong of the plug part is insertable, the contact fingers at one end being clamped and elastically bendable for clamping at another free end being clamped between the contact fingers of the contact tong in an inserted condition, the contact fingers being bent relative to one another in a configuration from the group consisting at an angle and convexly and being pressed with a contact surface arranged at an apex of a bending against a neighboring contact surface of the contact tong, the apexes of the both contact fingers being offset relative to one another in an insertion direction of the contact tong and overlapping before the insertion of the co

Abstract: A battery unit including a battery (3) is equipped with a monitoring circuit (9) for detecting and evaluating operating variables related to charge state of the battery (3). So that energy is not drawn from the battery (3) by its own monitoring circuit (9) when an external load (2) powered by the battery unit is shut off, the supply of electrical power to the monitoring circuit (9) in the battery unit is disconnected, either immediately or after a certain time delay, when the load (2) is shut off. This slows the discharge of the battery (3) when it is not supplying electrical to the load (2).

Abstract: A power control device of an electric tool has a control or regulating device for adjusting a power output to an electric motor of the electric tool by means of a pulse width modulation, and a frequency transmitter that varies a frequency of the pulse width modulation in dependence on a required power output; also a method for power control in an electric tool, as well as an electric tool with a power control device are provided as well.

Abstract: A contact arrangement for providing an electrical plug connection between an electrical device and an exchangeable storage battery for a current supply of the electrical device has a plug part having at least one contact tong with two oppositely located contact surfaces, a receiving part having at least two oppositely located contact fingers between which the contact tong of the plug part is insertable, the contact fingers at one end being clamped and elastically bendable for clamping at another free end being clamped between the contact fingers of the contact tong in an inserted condition, the contact fingers being bent relative to one another in a configuration from the group consisting at an angle and convexly and being pressed with a contact surface arranged at an apex of a bending against a neighboring contact surface of the contact tong, the apexes of the both contact fingers being offset relative to one another in an insertion direction of the contact tong and overlapping before the insertion of the co

Abstract: A measuring arrangement, particularly for measuring the temperature of an accumulator cell, includes an object of measurement (10), a support element (14), and a temperature sensor (12) electrically connected with the support element (14). The temperature sensor (12) is mounted on the support element (14) and is thermally connected with the object of measurement (10). The invention relates further to an energy storage module with this type of measuring arrangement, as well as to an electrical apparatus with this type of energy storage module.

Abstract: An energy storage module for supplying current to an electrical apparatus, in particular, for an electrical hand-held machining tool, has at least one cell (10) for storing electrical energy and at least one cell support (12) for mounting the cell (10), whereby the cell support (12) is in contact with the cell (10). The cell support (12) is made at least partially of a heat-conductive material, in order to more effectively draw away heat from energy loss in the cell (10).

Abstract: A measuring arrangement, in particular, for temperature measurement in an accumulator pack, with at least one cell (10) for storage of electrical energy, at least one cooling body (12) thermally connected with the cell (10) for cooling the cell (10), and at least one temperature sensor (14). The temperature sensor (14) is thermally connected with the cooling body (12).

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.

Abstract: An operating mechanism for an electrical apparatus (10), in particular, for a hand-held machining tool, includes a storage (18, 20) for inputting of control data and/or a control program for controlling the electrical apparatus (10), as well as a control unit (16) connected with the storage (18, 20) for controlling the operation of the electrical apparatus (10) according to the stored control data or the stored control program. The storage (18, 20) in operation is re-writable, in order to enable the control program or the control data upon assembly to operate according to apparatus specifications or the control program or to adjust the control data during the operation. In addition, the invention relates to an electrical apparatus with the above-type of operating mechanism and a corresponding method of operation.

Abstract: A current supply device for an electrical appliance formed as a battery-operated power tool has an electrical energy storage, a protection circuit for the energy storage, and a switching element for switching off the protection circuit.

Abstract: A method of controlling the power of an electrical device in dependence on a temperature includes determining a temperature or a variable which depends on the temperature of an element selected from the group consisting of a current supply unit connected with the electrical device, one or several components of the electrical device, and both, and when the determined temperature or a variable which depends on it exceeds a predetermined threshold, reducing power taken from the electrical device until the temperature or a variable which depends on it falls below the threshold or a lower threshold.

Abstract: An equipment system includes a battery unit (10) having a monitoring circuit (14), which detects at least one operating parameter of the battery unit (10) and furnishes a control signal, dependent on the operating parameter, for switching means (25, 31). The switching means control the charging and discharging process of the battery unit (10) and are located in the electrical device (20) and in the charger (30), respectively. From the battery unit (10), the control signal is transmitted to the switching means (25, 31) in the electrical device (20) and in the charger (30), respectively. By this provision of shifting the switching means (25, 31) out of the battery unit (10) into the electrical device (20) and into the charger (30), respectively, the heat development in the battery unit (10) and also its structure size are reduced.

Abstract: A device for determining a charge condition of an electric storage battery connected to a consumer has a unit for detecting an operational value of the battery from which a charge condition can be derived, the unit being operative for detecting a terminal voltage of the battery and deriving the charge condition exclusively from such voltage values which are applied on output terminals of the battery when a level of current taken from the consumer reaches a predetermined value.

Abstract: A battery unit including a battery (3) is equipped with a monitoring circuit (9) for detecting and evaluating operating variables related to charge state of the battery (3). So that energy is not drawn from the battery (3) by its own monitoring circuit (9) when the load (2) powered by the battery unit is shut off, the supply of electrical power to the monitoring circuit (9) is interrupted, either immediately or after a certain time delay, when the load (2) is shut off. This slows the discharge of the battery unit (1) when it is not under load (2).