Abstract: The invention relates to a battery-powered device, comprising a first controller, a first battery interface, and at least one electric consumer, wherein the first battery interface is configured to receive at least one configurable rechargeable battery pack for supplying energy to the at least one electric consumer; and wherein the first controller is embodied to receive at least one battery charging parameter at the first battery interface, and to reconfigure the at least one battery charging parameter by means of the first battery interface according to the power demands of the at least one electric consumer or according to a given user-specification.

Abstract: The invention relates to an electric machine tool comprising an electric motor, a motor control unit for operating the electric motor, an input interface for entering a target specification of an operating mode of the electric motor into the motor control unit, and a motor sensor device for detecting the operating mode of the electric motor. A slave control unit is provided, which is independent from the motor control unit and communicatingly connected to the motor sensor device and the input interface and designed to compare the operating mode of the electric motor detected by the motor sensor device with the target specification entered via the input interface, and to influence the operating mode of the electric motor in case of a defined deviation of the operating mode from the target specification by means of a control device.

Abstract: The invention relates to an apparatus for connecting a power cable to an electronic unit of a power tool having at least one clamp for clamping a connecting line of the power cable and a contact element for establishing an electrical contact between the connecting line and the electronic unit. The clamp and the contact element are arranged on a connecting element extending through an opening in a housing element, which spatially separates the clamp from the electronic unit. The opening is sealed by a seal bearing against the connecting element.

Abstract: The invention relates to a rechargeable battery pack, in particular for a hand-held electrical power tool, comprising: at least two rechargeable battery cells and/or rechargeable battery cell blocks, which are connected in series or in parallel, a housing with a cell carrier for receiving the rechargeable battery cells and/or rechargeable battery cell blocks in rows arranged one above the other, and a printed circuit board, wherein the rechargeable battery cells are connected to the printed circuit board via conductor plates when the rechargeable battery packs are in the installed state, and wherein at least one of the conductor plates at least partially surrounds at least two conductor plate layers when the rechargeable battery pack is in the assembled state with the printed circuit board.

Abstract: The invention relates to a configurable rechargeable battery pack, comprising an integrated battery management system and a data interface and a user interface, wherein the battery management system has a data memory for storing at least one rechargeable battery charging parameter and provides, at the data interface, the at least one rechargeable battery charging parameter for an external charging device, and wherein the at least one rechargeable battery charging parameter can be configured by means of an input at the user interface.

Abstract: A device for locking a rechargeable battery pack on a housing of a hand-held power tool, having a contact plate, which is connectable to the housing and comprises at least one contact, for producing a contact between the rechargeable battery pack and the hand-held power tool and having a locking device, which engages in at least one recess in the rechargeable battery pack. The locking device is mounted on the contact plate so as to be rotatable and the locking device is supported on the contact plate by means of at least one spring element.

Abstract: An arrangement for measuring a single cell in a rechargeable battery pack is described, and which includes a plurality of cells coupled in a series circuit, and wherein adjacent cells are electrically coupled to a connecting branch, and a measuring device comprising a switch is provided, and which selectively electrically connects one connecting branch to a measuring input of the measuring device.

Abstract: An arrangement for measuring a single cell in a rechargeable battery pack is described, and which includes a plurality of cells coupled in a series circuit, and wherein adjacent cells are electrically coupled to a connecting branch, and a measuring device comprising a switch is provided, and which selectively electrically connects one connecting branch to a measuring input of the measuring device.

Abstract: In a preferred embodiment, an angle grinder has a housing containing its electromotive drive, the housing having a free end from which an electric power cable extends, the free end having air intake openings via which cooling air is drawn into the housing. A filter assembly has a body and a filter medium supported by the body, the body being detachably attachable to the free end of the housing via, in some embodiments, latching projections. The body and the filter medium together form a projection-free outer face of the angle grinder when the filter assembly is attached to the free end of the housing. Air drawn into the air intake openings enters the filter assembly by way of the projection-free outer face and passes through the filter medium prior to being drawn into the air intake openings. The filter assembly may include a slotted opening through which the power cable extends.

Abstract: A connecting device may have a tooth-shaped jacket, a locking body internally of the tooth-shaped jacket, a plurality of balls, a spring, and a spring base. The locking body has a rear end with an annular groove and has a neck with a plurality of spherical recesses containing the balls. Radial positioning between the locking body and the tooth-shaped jacket is realized through the balls. The spring is connected between the tooth-shaped jacket and the spring base and axial positioning between the spring base and the locking body is realized through a snap ring in the annular groove.

Abstract: The present invention relates to a method for producing a stator which includes the steps of inserting a stator segment into a former; introducing a coil wire winding into a coil space of the stator segment, and out via a slot which is located in the region between two pole horns; cohesively connecting the turns of the coil at least partially, at least in parts of that region of the coil, which is located outside the slot; and removing the former.

Abstract: An electric hand power-tool appliance is described and which includes a spindle, a tool mounted on the spindle, a supporting element mounted on the spindle and which is movable along the spindle on a path L, and against a force F, and in the direction of the electric hand power-tool appliance, and which increases the safety of the electric hand power-tool appliance.

Abstract: The invention relates to a rechargeable battery pack, for use with an electrical hand tool device and which includes at least two series-connected rechargeable battery cells and/or rechargeable battery cell blocks, and an electronics unit having a printed circuit board, and wherein sheet metal conductors for electrically connecting the series-connected rechargeable battery cells and/or rechargeable battery cell blocks are provided, and wherein the sheet metal conductors are connected directly to the printed circuit board.

Abstract: The invention relates to a filter assembly (20) for attachment to an angle grinder (10) having a housing (12) which has air intake openings (16), comprising a filter medium (30) which, in the mounted state, forms a projection-free outer face (22) of the angle grinder (10) in the region of the air intake openings (16).

Abstract: The present utility model discloses a connecting structure-containing connection device of an electric tool for connection with an angle adjuster, comprising a tooth-shaped jacket, a locking body, a plurality of steel balls, a spring, and a spring base, characterized in that the tooth-shaped jacket is internally equipped with the locking body; a plurality of spherical grooves are emplaced around the circumference of the neck of the locking body and steel balls are contained in the spherical grooves; the radial positioning between the locking body and the tooth-shaped jacket is realized through the steel balls; an annular groove is present at the rear end of the locking body and the annular groove is internally equipped with a snap spring; the rear end of the locking body is equipped with a spring base, the axial positioning between the spring base and the locking body is realized through the snap spring, and the spring base is connected to one end of the spring and the other end of the spring presses against

Abstract: A motor driven angle grinder is described and which includes an electric motor; a transmission coupled to the electric motor and which includes a motor shaft and a tool spindle; a crown wheel in the form of a hat is provided and which forms a recess that receives the tool spindle and a bearing, and wherein the crown wheel defines toothing which surrounds the recess, and wherein the transmission housing and the angle grinder have low relative height profiles which permits the angle grinder to be used in restricted or tight space working environments.

Abstract: An electric handheld tool having a safety guard which is rotatably adjustably mounted thereto, and which further has a resilient latching means; a counter latching means borne by the electric handheld tool, and which cooperates with the latching means; and a stop means moveable between first and second portions and which cooperates with the latching means such that latching means, and counter latching means are either, on the one hand, held in engagement, or are released from engagement so as to permit selective movement of the safety guard.

Abstract: A connecting structure-contained connecting device of an electric tool for connection with an angle adjuster, comprises a tooth-shaped jacket which is internally equipped with a locking body, a steel ball, a spring and a spring base; the locking body is connected to the spring base through the spring. When the spring on the spring base is pushed to extend to extrude the steel ball, the axial fixation of the angle adjuster can be quickly and conveniently realized through the connecting device.

Abstract: A belt fastener has a fastener body, a hook-shaped tongue and a triangular groove. The fastener body is embedded in a slot on the tail end of the housing of the electric tool through the hook-shaped tongue. The hook-shaped tongue and the triangular groove ensure stable embedding state of the fastener. The fastener can be conveniently removed by pressing the hook-shaped tongue. The fastener can be randomly embedded on the right or right side of the housing according to handedness, and then suspended and fastened at any position on the belt of a user.

Abstract: The present invention relates to an angle grinder having a front transmission housing for enclosing a transmission arrangement which has a closing surface that faces away from a free end of the tool spindle, and wherein the maximum distance between the closing surface and an end face of the free end of a tool spindle defines a height of the transmission housing, and wherein the height has a predefined ratio to a diameter of a disc-shaped tool, of about 1 to about 5.