Patent application number | Description | Published |
20090027005 | CHARGING DEVICE - The invention relates to a loading device ( | 01-29-2009 |
20100219963 | APPARATUS FOR INDICATING THE STATE OF CHARGE OF A STORAGE BATTERY - Storage batteries having a rechargeable battery for operating electric tools often have a state of charge indicator. A state of charge circuit, which has a sensor that is coupled to the evaluation unit, is provided in order to identify the operating state of the storage battery. An interlock switch for preventing indication of the state of the charge is coupled to the evaluation unit. If charging or discharging of the rechargeable battery is identified using the sensor, the interlock switch is used to prevent indication of the current state of charge. | 09-02-2010 |
20100221592 | BATTERY PACK - The invention describes a battery pack for a handheld power tool, which can be connected replaceably to a handheld power tool and has a housing, in which a single battery cell is received in the housing. | 09-02-2010 |
20100237826 | CHARGER FOR CHARGING AT LEAST ONE RECHARGEABLE ENERGY STORAGE UNIT - The invention relates to a charging device for charging at least one rechargeable energy storage unit, having a defined inner resistance and having a compensation circuit for the compensation of a voltage drop during the charging operation caused by the inner resistance. The compensation circuit has a current detection for detecting a charge current of the rechargeable energy storage unit and a voltage regulator for adjusting the charge voltage to the detected charge current. The charging device is characterized in that the compensation circuit has a voltage distributor between the current detector and the voltage regulator, by the dimensioning of which the compensation of the inner resistance is carried out. | 09-23-2010 |
20100237831 | DEVICE, IN PARTICULAR CHARGING DEVICE, FOR CHARGING AN ACCUMULATOR - Charging devices which can be operated in a plurality of manually selectable charging modes and which have a discharging device are known. According to the invention, a storage charge mode which is optimized for storage of the accumulator is proposed. For this purpose, a device for determining the charge state of the accumulator is provided. When the storage charge mode is activated, the accumulator is charged only up to a predefined, optimized partially charged state, in which case the discharging device discharges the accumulator as far as the predefined partially charged state if the charge state which is determined at the start of the storage charge mode is higher than the predefined partially charged state. | 09-23-2010 |
20110006729 | RECHARGEABLE BATTERY CHARGING CASE - The invention is based on a rechargeable battery charging case, in particular a cordless handheld power tool case, having at least one battery attachment device and a case body. It is proposed that the rechargeable battery charging case has an electrical energy output and a supply unit, which in at least one operating state is connected to the energy output and to the battery attachment device for supplying the energy output. | 01-13-2011 |
20110111270 | BATTERY PACK AND HANDHELD POWER TOOL HAVING A BATTERY PACK - The invention relates to a battery pack comprising at least one battery cell and a housing for accommodating the at least one battery cell. It is proposed that the housing is designed as at least double-walled having at least one inner sheath and one outer sheath. According to the invention, an intermediate volume is enclosed between the at least one inner sheath and the outer sheath. The intermediate volume is able to absorb a pressure wave from an internal volume containing the battery cells. | 05-12-2011 |
20110140654 | HANDHELD POWER TOOL CHARGER - A handheld power tool charger, having at least one battery contact device is proposed, which is provided for charging at least one nondiscretely positioned handheld power tool battery. According to the invention, the battery contact device has at least one contact region which is embodied as elongated. | 06-16-2011 |
20110143561 | SPARE MODULE FOR HANDHELD POWER TOOL - The invention is based on a spare handheld power tool module, having at least one interface that has at least one contact region and at least one electrical contact that is disposed at least partly in the contact region. It is proposed that the interface has at least one closure unit, which is provided for covering the contact region. | 06-16-2011 |
20120169285 | CHARGING DEVICE HAVING A POWER ELEMENT - In a charging device having a power element for producing a charge voltage for charging a battery pack from an input voltage provided by an input voltage source, the power element and the input voltage source being capable of being connected to one another in electrically conductive fashion via a separator that can be controlled by a control unit, and the separator being fashioned for the purpose of producing, in an allocated switching mode, an electrically conductive connection between the power element and the input voltage source and, in an allocated separating mode, separating this electrically conductive connection, the control unit is connected, at least for standby power supply, to an allocated energy storage device, and is fashioned for the purpose of controlling the separator during the transition from a charge operating mode to a standby operating mode of the charging device, in order to change the separator over from switching mode to separating mode. | 07-05-2012 |
20120194131 | CHARGING DEVICE FOR CHARGING A BATTERY PACK - A charging device for charging a battery pack, having a control circuit for a switched-mode power supply transformer assigned to the charging device, the transformer having at least one primary winding switchable using a power switch and at least one first secondary winding for generating an electrical output voltage for charging the battery pack, the output voltage having a first amplitude which is predefinable by a control unit and adjustable using a first voltage limiting control loop. The transformer has at least one second secondary winding for generating at least one electrical auxiliary voltage having a second amplitude which is predefinable by the control unit and adjustable using a second voltage limiting control loop in order to at least reduce an energy feed assigned to an operation of the control circuit from the primary winding to the secondary windings in a standby mode of the control circuit. | 08-02-2012 |
20120229083 | HANDHELD TOOL BATTERY CHARGING MEANS - A handheld tool battery charging unit, e.g., for a handheld machine tool battery, has at least one battery accommodation region and at least one detachable battery contact unit provided to be connected to at least one battery pack, as well as at least one charging connection element provided for receiving energy transmitted in a wireless manner. | 09-13-2012 |
20120238119 | HAND TOOL MODULE - A hand tool module having an interconnection device, which has an interface. The interconnection device has, in addition to the interface, at least one auxiliary interface, which is provided to bidirectionally exchange at least power at least with one additional hand tool module and/or a hand tool. | 09-20-2012 |
20120267134 | Handheld Tool, Handheld Tool Add-On Measuring Device and Handheld Tool Battery - A handheld tool having a battery interface is described, in which a provision is made for the handheld tool to have at least one measuring device interface, which is provided to receive at least data containing measuring information of a handheld tool add-on measuring device. | 10-25-2012 |
20130009594 | INDUCTIVE CHARGING DEVICE AND CONTROL METHOD - A charging device for a rechargeable energy store which has a first induction coil includes: a coupling surface for positioning the first energy store; a second induction coil for generating a magnetic field in the area of the coupling surface to transfer electrical energy between the first and second induction coils; and a direction control system for bringing an alignment of the field of the second induction coil in line with an alignment of the first induction coil. | 01-10-2013 |
20130181666 | RECHARGEABLE BATTERY CHARGING CASE - The invention is based on a rechargeable battery charging case, in particular a cordless handheld power tool case, having at least one battery attachment device and a case body. It is proposed that the rechargeable battery charging case has an electrical energy output and a supply unit, which in at least one operating state is connected to the energy output and to the battery attachment device for supplying the energy output. | 07-18-2013 |
20140091768 | STORAGE DEVICE FOR STORING ELECTRICAL ENERGY AND METHOD FOR OPERATING A STORAGE DEVICE - The invention relates to a storage device ( | 04-03-2014 |
20140111162 | Method for operating a storage device for storing electrical energy, and storage device for storing electrical energy - A method for operating a storage device for storing electrical energy, having at least two storage cells. The storage cells are charged with the aid of a physical charge quantity provided by an electrical charging device, and a physical variable is monitored in each case in the storage cells. As a function of the monitored variables, a control signal is transmitted to the charging device for controlling same, and the charge quantity is successively reduced as a function of the control signal. A related storage device for storing electrical energy is also described. | 04-24-2014 |
20150077042 | Battery charging device - A battery charging device includes: a battery housing which delimits at least one battery receiving space at least in part; at least one power electronics unit supplying a charging voltage; and an electronics housing which (i) is formed separately from the battery housing, and (ii) accommodates the power electronics unit in at least one of water-protected manner and dust-protected manner. | 03-19-2015 |
20150077043 | Battery charging device - A battery charging device includes: at least one power electronics unit supplying a charging voltage; at least one cooling unit cooling the power electronics unit; and an electronics housing accommodating the at least one power electronics unit in at least one of water-tight and dust-tight manner. The electronics housing is cooled from the outside by a fan of the at least one cooling unit during at least one operating mode. | 03-19-2015 |