Robert Boschgmbh

Sony International (europe) Gmbh

Other

Sony Deutschland Gmbh

Sony Corporation

Sony Electronics Inc

Dragan Krupezevic

Veselin Brankovic

Juergen Mack

Guenter Lohr

Mohamed Ratni

Marcin Rejman

Masayoshi Abe

Tino Konschak

Thomas D&ouml;lle

Martin Gonda

Gerald Oberschmidt

Noboru Sasho

Jan Breitenbach

Kenichi Kawasaki

Keiji Fukuzawa

Wilfried Aichele

Hamid Amir-Alikhani

Bernd Wirnitzer

Kazuji Sasaki

Volker Amann

Friederike Dietzel

Aleksandar Nesic

Robert Morelos Zaragoza

A battery device, which has a battery cell unit and at least one induction interface and, in at least one reception operating state, is configured to receive electrical energy by induction for charging the battery cell unit. The battery device includes at least one electrical load, which is activate-able above a defined state of charge of the battery cell unit.

Battery device

An induction charging device and a method for inductively transmitting energy to an induction rechargeable battery device, with at least one primary oscillating circuit that includes at least one charging coil, and with a control/regulation unit for controlling the primary oscillating circuit with an inverter circuit. An excitation frequency of an output signal of the inverter circuit made up of half-waves essentially corresponds to a resonant frequency of the primary oscillating circuit. The induction charging device provides that, for reducing a charging current, the control/regulation unit, after an end-of-charge voltage of the induction rechargeable battery device is reached, controls the inverter circuit so that the output signal periodically sets at least one first half-wave to a high value, and an odd plurality of successive half-waves is then immediately set to a value that is low compared to the high value.

Induction charging device for inductively transmitting energy to an induction rechargeable battery device, and method for inductively charging an induction rechargeable battery device

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 upper limit and/or a lower limit of the setpoint quality range and the profile of the actual quality are adapted to one another. Also described is an induction charging device including an oscillator circuit and a control and regulating unit for carrying out the method.

Method for foreign object detection for an induction charging device and induction charging device

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.

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.

Inductive energy transmission system

A rechargeable handheld tool battery includes: at least one rechargeable cell; and at least one inductive charging unit that has at least one inductive charging coil for charging the at least one rechargeable cell. A diameter of the inductive charging coil is greater than a principal extension length of the at least one rechargeable cell.

Rechargeable hand tool battery

An inductive charging device for a handheld machine tool storage battery device includes at least one foreign-object detection unit having at least one operating time counter and at least one compensating unit. The compensating unit sets and/or adapts at least one foreign-object detection parameter of the foreign-object detection unit as a function of an operating time t.

Inductive charging device

A method for producing an electrical oscillating circuit for an inductive charging device, having at least one oscillating circuit component. In a method step, the at least one oscillating circuit component is classified as a function of a structurally caused deviation of a characteristic value of the oscillating circuit component from a nominal value.

Method for producing an oscillating circuit

A method for detecting foreign objects in an induction charging device, with the aid of at least one control and/or regulating unit of the induction charging device, includes: ascertaining a resonance frequency; determining an actual quality at the resonance frequency; and comparing the actual quality to a setpoint quality which is a function of a resonance frequency.

Method for detecting foreign objects in an induction charging device

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.

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.

Induction charging coil device

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.

Hand-held power tool rechargeable battery

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.

Inductive charging unit

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.

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.

Growing community of inventors

Stuttgart, Germany

Dragan Krupezevic