Abstract: A charging device for an energy store of an electrically driven vehicle, which includes a charging plug for transmitting an electrical charge to the energy store of the motor vehicle, a charging line for connecting the charging plug to a power grid, and a charging pillar with a docking station for receiving the charging plug when it is not in use and for connecting the charging line to the power grid. A cooling device for cooling the charging plug is arranged in the docking station.

Abstract: A method for supplying a number of electric charging stations with electricity, wherein AC voltage provided by an electricity source is transformed into a prescribed AC voltage level by at least one transformer via at least one star winding and at least one delta winding and subsequently routed via AC voltage lines to the number of electric charging stations and converted directly to direct current in respective charging stations from the number of electric charging stations locally by at least two rectifiers of the charging stations.

Abstract: A battery pack for an electric power tool has at least one cell arrangement with a plurality of individual battery cells that are arranged such in a predetermined total number of battery cells upright adjacent to one another for forming a cell container that cell axes of the battery cells are approximately perpendicular to a common reference plane. Cell connectors electrically conductingly connect cell ends of the battery cells. The battery cells of the cell container include a core cell and neighboring cells surrounding the core cell. Points of intersection of the cell axes of all of the neighboring cells with the reference plane are positioned on a closed, approximately elliptical curve. A number of neighboring cells is greater than one third of the total number of the battery cells of cell container.

Abstract: An electric work apparatus having an electric load which is fed from a rechargeable battery pack. The battery pack is accommodated in a housing with the electric load being connected to the battery pack via an electric connecting cable. To provide cable guidance for the connecting cable that is ergonomically suitable for a user, cable ducts are molded in a housing wall of the backpack-type battery pack that is separate from the electric load. The cable duct opens in the edge of the housing as cable outlets.

Abstract: A portable work apparatus has a main unit and a work tool. The main unit is carried by the user via a strap. The strap has a fastening section which is secured to the main unit via a fastening element. The fastening section is held between a pressure surface of the fastening element and a fastening surface formed on the main unit. To prevent twisting of the strap when the fastening element is secured, provision is made for the fastening surface to be formed with a structure that increases the friction coefficient. The structure interacts with a bearing surface, facing the fastening surface, of the fastening section such that the fastening section, which is held in a clamped manner between the pressure surface of the fastening element and the fastening surface of the main unit, is prevented from rotating relative to the main unit.

Abstract: A hand-held power tool has a device housing having a battery pack compartment. An electric drive motor is arranged in the device housing. An output for driving a working tool is connected to the electric drive motor and arranged in the device housing. A battery pack is arranged in the battery pack compartment and is substantially received completely in the battery pack compartment. At least one grip for guiding the power tool is provided. The device housing has a housing volume and the battery pack compartment has a compartment volume located inside the device housing. A ratio of the housing volume to the compartment volume is approximately 1.5 to maximally approximately 5.

Abstract: The invention is directed to a rechargeable battery pack for an electrical load with the load being connected to the rechargeable battery pack by a connection cable. A housing of the rechargeable battery pack has an inner space for accommodating a large number of rechargeable individual cells which are electrically connected to one another and supply the load via the connection cable. To provide the housing with a high level of stability, provision is made for the receiving space in the housing to be subdivided into individual receptacles by partition walls. A cell pack includes a predefined number of the individual cells and is arranged in a corresponding individual receptacle. Each cell pack forms an independent unit which is held in the individual receptacle. The individual cells of a cell pack are electrically and mechanically connected to one another by cell connectors.

Abstract: An exchangeable battery pack for an electric device has a housing with a first end face and a second end face opposite the first end face, wherein the first end is open. A housing cover closes off the first end face. Battery cells are disposed in the housing. Cell connectors electrically connect the cells with one another. An external electrical connector is disposed on the second end face. All of the battery cells are connected to the external electrical connector. The battery cells are charged and discharged through the external electrical connector. A cell holder secures several of the battery cells. An inner positional securing element is provided on an inner side of a sidewall of the housing and the cell holder interacts with the positional securing element.

Abstract: An electric power tool has a device housing with a rear grip extending in the longitudinal direction of the device housing. The device housing has first opposed housing sides and second opposed housing sides. An electric drive motor and its electronic control are arranged in the device housing. A battery pack compartment arranged in the device housing receives a battery pack that has a parallelepipedal shape and extends in a direction of a height axis, width axis and depth axis. The battery pack is arranged such that the width axis and the height axis extend transversely to the longitudinal axis of the device housing. The battery pack has narrow sides extending approximately parallel and at a minimal spacing relative to the first opposed housing sides, respectively. The battery pack has opposed end faces neighboring the second housing sides, respectively.

Abstract: A portable work apparatus has a main unit and a work tool. The main unit is carried by the user via a strap. The strap has a fastening section which is secured to the main unit via a fastening element. The fastening section is held between a pressure surface of the fastening element and a fastening surface formed on the main unit. To prevent twisting of the strap when the fastening element is secured, provision is made for the fastening surface to be formed with a structure that increases the friction coefficient. The structure interacts with a bearing surface, facing the fastening surface, of the fastening section such that the fastening section, which is held in a clamped manner between the pressure surface of the fastening element and the fastening surface of the main unit, is prevented from rotating relative to the main unit.

Abstract: A battery pack for an electric power tool has a housing and a housing cover that closes off the housing. Battery cells are arranged in the housing and electrically conductingly connected to one another. An electronic circuit for monitoring operating parameters of the battery cells is provided wherein the electronic circuit is mounted on a circuit board and is arranged in the housing. The housing cover has an inner side facing the battery cells. The inner side has a receptacle that is delimited by an outer receptacle rim. The circuit board is received in the receptacle and is spaced from a bottom of the receptacle so that a filling space is provided between circuit board, bottom of the receptacle, and the receptacle rim. A cured potting compound fills out the filling space.

Abstract: A hand-held electric device has a device housing with a battery pack compartment. A battery pack is disposed in the battery pack compartment. The battery pack compartment has guide elements extending in the insertion direction of the battery pack. The battery pack has a battery pack housing and guide sections provided on the battery pack housing that interact with the guide elements. The battery pack has an electric connector head disposed on the battery pack housing. The battery pack compartment has contact elements. In a predetermined insertion position of the battery pack in the battery pack compartment the contact elements electrically contact the connector head. A contact plate is floatingly supported in the battery pack compartment and the contact elements are disposed on the contact plate.

Abstract: An electric power tool has a device housing with a rear grip extending in the longitudinal direction of the device housing. The device housing has first opposed housing sides and second opposed housing sides. An electric drive motor and its electronic control are arranged in the device housing. A battery pack compartment arranged in the device housing receives a battery pack that has a parallelepipedal shape and extends in a direction of a height axis, width axis and depth axis. The battery pack is arranged such that the width axis and the height axis extend transversely to the longitudinal axis of the device housing. The battery pack has narrow sides extending approximately parallel and at a minimal spacing relative to the first opposed housing sides, respectively. The battery pack has opposed end faces neighboring the second housing sides, respectively.

Abstract: A hand-held power tool has a device housing having a battery pack compartment. An electric drive motor is arranged in the device housing. An output for driving a working tool is connected to the electric drive motor and arranged in the device housing. A battery pack is arranged in the battery pack compartment and is substantially received completely in the battery pack compartment. At least one grip for guiding the power tool is provided. The device housing has a housing volume and the battery pack compartment has a compartment volume located inside the device housing. A ratio of the housing volume to the compartment volume is approximately 1.5 to maximally io approximately 5.

Abstract: A battery pack for an electric power tool has a housing and a housing cover that closes off the housing. Battery cells are arranged in the housing and electrically conductingly connected to one another. An electronic circuit for monitoring operating parameters of the battery cells is provided wherein the electronic circuit is mounted on a circuit board and is arranged in the housing. The housing cover has an inner side facing the battery cells. The inner side has a receptacle that is delimited by an outer receptacle rim. The circuit board is received in the receptacle and is spaced from a bottom of the receptacle so that a filling space is provided between circuit board, bottom of the receptacle, and the receptacle rim. A cured potting compound fills out the filling space.

Abstract: A battery pack for an electric power tool has at least one cell arrangement with a plurality of individual battery cells that are arranged such in a predetermined total number of battery cells upright adjacent to one another for forming a cell container that cell axes of the battery cells are approximately perpendicular to a common reference plane. Cell connectors electrically conductingly connect cell ends of the battery cells. The battery cells of the cell container include a core cell and neighboring cells surrounding the core cell. Points of intersection of the cell axes of all of the neighboring cells with the reference plane are positioned on a closed, approximately elliptical curve. A number of neighboring cells is greater than one third of the total number of the battery cells of cell container.

Abstract: A hand-guided electric device has an electric motor for driving a tool. The electric motor has a motor housing with inlet and outlet for cooling air. A blower wheel is driven by the electric motor and cooling air is conveyed into the motor housing with the blower wheel through the inlet and blown out from the motor housing through the outlet. The device housing has a cooling air inlet chamber and a cooling air outlet chamber. The cooling air enters the inlet chamber through a cooling air inlet port in an exterior housing wall of the device housing and exits from the outlet chamber through a cooling air outlet port in the exterior housing wall. The cooling air inlet and outlet chambers are separated from one another substantially air-tightly by an inner housing wall so that motor housing is the only flow connection between inlet and outlet chambers.

Abstract: An exchangeable battery pack for an electric device has a housing with a first end face and a second end face opposite the first end face, wherein the first end is open. A housing cover closes off the first end face. Battery cells are disposed in the housing. Cell connectors electrically connect the cells with one another. An external electrical connector is disposed on the second end face. All of the battery cells are connected to the external electrical connector. The battery cells are charged and discharged through the external electrical connector. A cell holder secures several of the battery cells. An inner positional securing element is provided on an inner side of a sidewall of the housing and the cell holder interacts with the positional securing element.

Abstract: A hand-held electric device has a device housing with a battery pack compartment. A battery pack is disposed in the battery pack compartment. The battery pack compartment has guide elements extending in the insertion direction of the battery pack. The battery pack has a battery pack housing and guide sections provided on the battery pack housing that interact with the guide elements. The battery pack has an electric connector head disposed on the battery pack housing. The battery pack compartment has contact elements. In a predetermined insertion position of the battery pack in the battery pack compartment the contact elements electrically contact the connector head. A contact plate is floatingly supported in the battery pack compartment and the contact elements are disposed on the contact plate.

Abstract: A high-pressure cleaner having a housing and a high-pressure hose for connection to a spray fixture. The high-pressure cleaner includes a textile flat hose for connection to a water supply.