Abstract: An energy supply device, in particular for a power tool, wherein the energy supply device includes at least one current-disconnecting element having a rated current-carrying capacity I_N, the rated current-carrying capacity I_N of the at least one current-disconnecting element being greater than a value of the following expression: 1000·(DCR_I){circumflex over (d)}?0.6, where DCR_I is the internal resistance of the energy supply device and is measured in accordance with standard IEC61960. A peak current-carrying capacity I_P of the at least one current-disconnecting element for a loading duration of at least 100 milliseconds can be greater than 3000·(DCR_I){circumflex over (?)}?0.6.

Abstract: A battery connection apparatus on a rechargeable battery, in particular as power supply for a power tool, for releasably connecting the rechargeable battery to the power tool. The battery connection apparatus contains an outer frame and an inner frame, wherein the inner frame contains at least a first and second contact element and the outer frame contains a guide device for guiding an inner frame in at least one direction/plane, wherein the inner frame is positioned by at least one elastic element in a force-loaded manner at least in part in the guide device.

Abstract: A system including a power tool and an energy supply device, wherein the energy supply device is provided for supplying the power tool with electrical energy. The energy supply device can be releasably connected to the power tool via an interface, wherein the interface comprises at least a female contact partner and a male contact partner. The interface has a total electrical transition resistance per pole of less than 0.4 milliohm, preferably less than 0.3 milliohm and particularly preferably less than 0.2 milliohm. The interface has at least six, preferably at least eight, and particularly preferably at least twelve individual contact points per pole, and wherein the energy supply device has at least one energy storage cell, wherein the at least one energy storage cell has an internal resistance DCR_I of less than 10 milliohm. In addition, the interface may comprise more than six, preferably more than eight and most preferably more than twelve individual contact points.

Abstract: A system including a machine tool and an energy supply device, the energy supply device being designed to supply electric energy to the machine tool. The energy supply device can be releasably connected to the machine tool via an interface, wherein the interface includes at least one female contact partner and a male contact partner, and the contact partners can be releasably connected together via a plug connection. The interface has a total electric transmission resistance per pole of less than 0.4 milliohm, preferably less than 0.3 milliohm, particularly less than 0.2 milliohm. Furthermore, the interface can have more than six, preferably more than eight and at most preferably more than twelve individual contact points. A second aspect of the invention relates to an energy supply device for use in the system.

Abstract: A rechargeable battery, preferably as a removable energy supply for a power tool, including at least one energy storage cell and a connection apparatus for removably connecting the rechargeable battery to a power tool, the connection apparatus including at least a first, second and third connection element. The connection apparatus includes a holding and receiving apparatus for at least partially receiving the first, second and third connection element, each connection element being connected to the holding and receiving apparatus via at least one compensating element in such a way that a relative movement between the connection element and the holding and receiving apparatus in at least one direction can be compensated.

Abstract: A system including a power tool and an energy supply device, wherein the energy supply device is provided for supplying the power tool with electrical energy. The energy supply device can be releasably connected to the power tool via an interface, wherein the interface includes at least a female contact partner and a male contact partner. The female contact partner and the male contact partner are in contact with each other in at least a first contact region and in a second contact region. The first contact region may be defined by a first contact normal force, while the second contact region may be defined by a second contact normal force, wherein the first contact normal force and the second contact normal force have different orientations. In addition, the interface can include an elastic means for reducing the relative movement between the male contact partner and the female contact partner. An interface for transmitting electrical energy, and to an energy supply device is also provided.

Abstract: A power tool, which is connectable to an elongate tool extending forward in a spatial direction, wherein the power tool is designed to drive the tool to perform a rotating and/or striking movement. The power tool includes a dust collection box for extracting dust-laden air from a working region of the power tool, the dust being able to be filtered out from the dust-laden air by means of a filter. A virtual center plane can be placed through a main body of the power tool and/or of the dust collection box, the virtual center plane dividing the main body into two halves, wherein an inlet of the dust collection box for the dust-laden air is arranged predominantly on the one side, and the filter of the dust collection box predominantly on the other side, of the virtual center plane. A dust collection box for a power tool, wherein the inlet and the filter of the dust collection box are present on different sides, i.e. in different halves of the dust collection box.

Abstract: Rechargeable battery as an energy supply for a power tool with at least a first and a second energy storage element. At least a first retaining device for receiving and retaining the at least first energy storage element and at least a second retaining device for receiving and retaining the at least second energy storage element is included, wherein at least a subregion of an outer surface of the at least first and/or second retaining device is configured such that at least one gap for a cooling fluid is provided between adjacent retaining devices. Power tool with at least one rechargeable battery.

Abstract: A system including a power tool and a first and a second energy supply device, wherein the energy supply devices can be detachably connected to the power tool via an interface. The first energy supply device has a number a of at least two contact partners for transmitting electrical energy to the power tool, whilst the second energy supply device has a number b of at least two contact partners for transmitting electrical energy to the power tool, wherein the number a of contact partners of the first energy supply device differs from the number b of contact partners of the second energy supply device. A system in which the contact partners of the energy supply devices have different coatings.

Abstract: The present invention is directed towards a process for making a powder or granule containing (A) at least one alkali metal salt of citric acid, and at least one additive selected from (B) at least one (co)polymer containing carboxylic acid groups, partially neutralized with alkali, in a weight ratio of (A):(B) of from 5:1 up to 100:1, wherein said powder or granule contains at least 75% by weight of citrate (A), said process comprising the steps of (a) mixing the at least one alkali metal salt of citric acid (A) and the at least one (co)polymer (B) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of at least 125° C.

Abstract: An electric power tool (10), in particular a handheld power tool, including a motor (40) and a tool fitting (14) for holding a tool, for example a drilling tool, a cutting tool, and/or a grinding tool, wherein the motor (40) is configured to drive the tool fitting (14). The power tool (10) is remote-controllable. It can have a protection device (42) which is activatable and/or deactivatable by remote control. A system (200) consisting of such a power tool (10) and a construction robot (210) is also provided. The power tool (10) can be used particularly universally and simply, in particular both manually and in an automated fashion by the construction robot (210).

Abstract: A holding frame (22) for receiving a tool (24) which has a storage battery interface (58) for receiving a storage battery (60) such that the latter is detachable, in particular detachable without the use of tools. The holding frame (22) has a holding portion (70) that is designed complementarily to the storage battery interface (58). The holding frame (22) furthermore has an attachment point (80) for attachment to a manipulator (18) of a construction robot (10). A construction robot (10) is also provided. The invention inexpensively allows particularly versatile use of the construction robot (10).

Abstract: A construction robot (10), in particular for performance of building construction work, including a manipulator (18), a changeover interface (21) arranged on the manipulator (18) and configured for releasable arrangement of at least one element, in particular a tool (24) and/or a component to be processed, on the manipulator (18). A test device (104) which is configured for quality testing of the changeover interface (21), safety risks on use of the construction robot (10) can be minimized.

Abstract: A system including a power tool and an energy supply device, wherein the power tool can be detachably connected to the energy supply device via an interface. The interface has a base material with a first density and is designed in such a way that the interface allows a relative movement of the power tool and the energy supply device in an insertion direction and prevents a relative movement between the power tool and the energy supply device in the other spatial directions. The energy supply device has a first contact region with a first contact material and the power tool has a second contact region with a second contact material, wherein the first contact material and/or the second contact material have a second density, wherein the second density is greater than the first density of the base material of the interface. An energy supply device, and to a corresponding interface is also provided.

Abstract: A rechargeable battery, preferably as a releasable energy supply for a power tool, comprising at least one energy storage cell and a connection apparatus for releasably connecting the rechargeable battery to a power tool, the connection apparatus comprising at least one first, second and third connection element.

Abstract: A portable power tool has a tool holder 2, a motor 8 and an electro-pneumatic striking mechanism 4. The striking mechanism includes an excitation piston 13, a striker 14, a pneumatic chamber 18 for coupling the striker 14 to the excitation piston 13 and an anvil 15 which is arranged in the striking direction 5 downstream of the striker 14 and is provided for transmitting a blow of the striker to the tool. The anvil is hollow. The hollow interior space 23 is closed in the striking direction 5 and counter to the striking direction 5.

Abstract: A rechargeable battery for a machine tool, having a cell core is provided, wherein no point within the cell core is at a distance of more than 5 mm away from a surface of the rechargeable battery and the rechargeable battery has a capacity of at least 2.2 Ah. A battery pack and a machine tool are also disclosed.

Abstract: A system including a power tool and an energy supply device, wherein the energy supply device is provided for supplying the power tool with electrical energy. The energy supply device can be releasably connected to the power tool via an interface, wherein the interface includes at least a female contact partner and a male contact partner. The female contact partner and the male contact partner are in contact with each other in at least a first contact region and in a second contact region. The first contact region may be defined by a first contact normal force, while the second contact region may be defined by a second contact normal force, wherein the first contact normal force and the second contact normal force have different orientations. In addition, the interface can include an elastic means for reducing the relative movement between the male contact partner and the female contact partner. An interface for transmitting electrical energy, and to an energy supply device is also provided.

Abstract: An energy supply device is provided, in particular for a power tool, the energy supply device being detachably connectable to the power tool. The energy supply device includes at least one element for locking the energy supply device in the power tool, wherein the at least one locking element is mounted rotatably about at least one first axis of rotation, wherein the first axis of rotation runs through a pivot point of the at least one locking element. In this case, the pivot point of the locking element precedes a locking location in an insertion direction. The energy supply device has at least one element for actuation by a user, wherein the at least one actuating element is mounted rotatably about at least one second axis of rotation which runs through a pivot point of the actuating element. In this case, the pivot point of the at least one locking element can precede a locking location in an insertion direction. In a second aspect, the invention relates to a power tool having a energy supply device.

Abstract: An electric motor, in particular for a power tool, the electric motor having a stator with an inner opening for receiving a rotor. The inner opening has a diameter corresponding to an inner diameter of a stator, the stator having a series of pole teeth, which are each wound with a winding to form a coil. The winding is characterized by a reference diameter, a ratio of the reference diameter to the stator inner diameter multiplied by a number of pole teeth being greater than 0.3. Taking into account the internal resistance of an energy storage cell of an energy supply device of a maximum of 10 milliohms, the ratio of the diameters may be greater than 0.03 (milliohms)?1. Also provided is an electric motor, in particular for a power tool, a ratio being formed from a sum of total winding conductor cross sections and a free winding cross section, the ratio being multiplied by a number of pole teeth and the product being greater than 2.2.