Abstract: An induction charging device, in particular, a hand-held power tool induction charging device, including a coil unit and at least one shielding unit, which is for at least partially shielding the coil unit. It is provided that the induction charging device includes at least one adjustment unit, with the aid of which at least one shielding parameter of the at least one shielding unit is changeable.

Abstract: A power transfer system includes: a transmitting device having a transmitting coil and a receiving device having a receiving coil, the two coils being inductively coupleable to one another for the purpose of transferring power, so that a power transfer path exists between them; an electrical load for connecting with terminals of the receiving coil; a detection device for detecting an electrical parameter which indicates the inductance of the transmitting coil while the electrical load is connected to the receiving coil; and a determination device for determining an object in the area of the power transfer path on the basis of the detected parameter.

Abstract: A method for foreign object detection for an induction charging device is described, including an oscillator circuit, in particular, for a hand-held power tool, a resonance frequency and an associated actual quality of the oscillator circuit being detected and the actual quality is subsequently compared to a setpoint quality as a function of the resonance frequency and a decision is made about the presence of a foreign object based on a defined setpoint quality range. The method provides that an internal temperature of induction charging device is detected, in particular, during the wireless energy transmission, and the actual quality is multiplied by a correction factor based on the internal temperature. Also, an induction charging device is described that includes an oscillator circuit and a control and regulating unit, as well as at least one temperature sensor for carrying out the method.

Abstract: An inductive energy transmission system including: a primary coil connectible to an electrical useful voltage source, the primary coil being connected to a first capacitor, the first capacitor being connected to a local ground potential of the energy transmission system; and a secondary coil inductively coupled to the primary coil; wherein a second capacitor is situated between the primary coil and the local ground potential of the energy transmission system.

Abstract: A hand-held power tool rechargeable battery is provided, including at least one rechargeable battery housing, at least one rechargeable battery cell and at least one inductive charging unit, which includes at least one inductive charging coil for charging the at least one rechargeable battery cell. It is provided that the rechargeable battery housing has at least one molded housing projection, which is delimited at least partially by an area of an inductive charging side of the rechargeable battery housing.

Abstract: The invention relates to an inductive charging device for charging at least one battery (12a; 12b), in particular at least one portable power tool battery, with a charging unit (14a; 14b) provided for transferring electrical energy to the at least one battery (12a; 12b), and with a detector unit (16a; 16b) provided for detecting a removal of the at least one battery (12a; 12b) during a charging process. It is proposed that the detector unit (16a; 16b) comprises at least one sensor (18a; 18b) provided for monitoring at least a resonance voltage and/or at least a resonance current (20a; 20b) of the charging unit (14b; 14b).

Abstract: A device for the inductive transmission of electrical energy, having at least one induction coil which is connected, or connectible, to a consumer and/or to a rechargeable battery, and having a communications device, which encompasses at least one control unit and is configured to modulate the load of the induction coil. It is provided that the communications device has a DC converter, whose output is connected or connectible to the consumer/the battery, and whose input is connected to the induction coil, the control unit controlling the DC converter for a load modulation.

Abstract: A system for supplying an electric load, in particular for charging a battery device, including a charging station with an accommodation unit for the battery device and a detection unit for the battery device. The detection unit includes a first optical transmitting device for transmitting a first optical signal and an optical receiving device for receiving the first optical signal. The battery device includes a second optical transmitting device for transmitting a second and third optical signal, the second optical transmitting device functioning as a transmitter of a discretely configured optocoupler for transmitting information from the battery device to the charging station. The optical receiving device of the charging station is configured as a receiver of the discretely configured optocoupler for receiving the second and third optical signals.

Abstract: A charging system for a battery device of a handheld tool includes a charging device provided to inductively charge the battery device in a charging operation, the charging device having at least one induction charging unit which has at least one charging coil having a main coil extension. A gap is provided between the battery device and the charging device in a charging operation. A ratio between (i) the at least one main coil extension and (ii) a minimum clearance between the at least one charging coil and a surface defining the gap is at most 30/1.

Abstract: An inductive charging device, in particular a handheld power tool inductive charging device, having a housing, a receptacle region for accommodating an induction accumulator, a coil unit that includes at least one core element and at least one induction coil that at least partly encloses the at least one core element, and at least one coil housing element that positions at least the coil unit relative to the receptacle region in the housing.

Abstract: A device for operating a charging unit that is connected/is connectable to a supply network and to a rechargeable energy store. A control unit and at least one sensor connected to the control unit are provided, the control unit being connected to a control input of the charging unit to switch on the charging unit as a function of a measured value of the at least one sensor for charging the energy store, or to switch it off for interrupting an electrical connection between the supply network and the energy store.

Abstract: A method for charging a battery, in particular a lithium ion battery, be performing the following: charging the battery using a constant charging current in a first phase, charging the battery using a constant charging voltage in a subsequent second phase, ending the charging as a function of a specifiable boundary value of the charging current in the second phase. In this context, the following operations are provided: comparing a guide voltage specified for setting the constant voltage to at least one stored switch-off value determined as a function of the boundary value, and ending the charging when the guide voltage reaches the switch-off value. Also described is a device for charging the battery.

Abstract: An inductive energy transfer apparatus, in particular a handheld power tool inductive energy transfer apparatus, is provided as having at least one coil unit that in at least one state is provided for energy transfer to at least one external coil unit, and having at least one open-and/or closed-loop control unit that is provided at least in order to evaluate at least one coil quality parameter for position detection and/or presence detection. It is proposed that the open- and/or closed-loop control unit be provided additionally at least in order to evaluate at least one coil coupling parameter for position detection and/or presence detection.

Abstract: A hand-held power tool rechargeable battery is provided as including a housing, at least one rechargeable battery cell, and an inductive charging unit, which includes at least one coil core and an inductive charging coil for charging the at least one rechargeable battery cell. It is provided that the inductive charging unit is accommodated detachably in the housing.

Abstract: An induction charging coil device is provided, in particular an induction charging coil device for a hand-held power tool, including at least one coil unit having at least one shielding unit, at least one core unit and at least one electronics unit and/or one cell unit to be shielded. It is provided that a projection area of the core unit, in the case of a projection in the direction of a winding axis of the coil unit, covers at least essentially the electronics unit and/or the cell unit to be shielded.

Abstract: An inductive charging unit is provided, in particular a hand-held power tool inductive charging unit, which is provided for transferring energy in a coupled state with an induction battery, including at least one charging coil and a housing which includes at least one receiving area for accommodating the induction battery in a coupled state. It is provided that the at least one receiving area has at least one recess.

Abstract: A power transfer system includes: a transmitting device having a transmitting coil and a receiving device having a receiving coil, the two coils being inductively coupleable to one another for the purpose of transferring power, so that a power transfer path exists between them; an electrical load for connecting with terminals of the receiving coil; a detection device for detecting an electrical parameter which indicates the inductance of the transmitting coil while the electrical load is connected to the receiving coil; and a determination device for determining an object in the area of the power transfer path on the basis of the detected parameter.

Abstract: An inductive charging device is provided, in particular a hand-held power tool inductive charging device, which includes an inductive charging unit which is provided for transferring energy in a coupled state with an induction battery. It is provided that the inductive charging device includes a fastening unit which is provided, at least in part, for coupling the inductive charging unit to the at least one induction battery and/or to at least one external unit in at least one state.

Abstract: An inductive charging coil device, in particular a hand-held power tool inductive charging coil device, includes at least one coil unit having at least one conductor. It is provided that the conductor includes at least two main cross sections.

Abstract: An inductive charging coil device, in particular a hand-held power tool inductive charging coil device, includes at least one coil unit and at least one core unit. It is provided that the core unit is at least partially formed by microscopic core elements embedded in a binder.