Patent application number | Description | Published |
20090004555 | ENERGY STORAGE MODULE AND ELECTRICAL APPARATUS - An energy storage module for current supply of an electrical apparatus, in particular for an electrical hand-held machining tool, has a plurality of cells for storage of electrical energy, at least one cell support mounting the cells, being in contact with the cells, enclosing the plurality of cells and made from a heat-conductive material, and at least one cooling body formed on the cell support. | 01-01-2009 |
20090051328 | BATTERY CHARGING APPARATUS - The battery charging apparatus is made with small and low-cost components. It includes a first transistor (T | 02-26-2009 |
20090168284 | CIRCUIT ARRANGEMENT FOR DETECTING UNDERVOLTAGE IN AN ENERGY SOURCE - Disclosed is a circuit arrangement ( | 07-02-2009 |
20100065293 | METHOD FOR OPERATING AN ELECTRICAL POWER TOOL, AND A DRIVE UNIT FOR AN ELECTRIC POWER TOOL - The invention relates to a method for operating a handheld electric power tool, having an electric motor that is drivable at a rated torque as the maximum allowable motor torque by the application of a maximum allowable motor current. The method includes the steps of manually furnishing a specification of a maximum torque, in which the maximum torque is within a setting range between a minimum set torque and the rated torque, operating the electric motor by applying a motor voltage which corresponds to an rpm desired by the user, and limiting the motor current to a current value that depends on the furnished specification of the maximum torque. | 03-18-2010 |
20110226596 | ELECTRIC SLIDE SWITCH - An electric slide switch has at least two contact pins that are secured to a base plate. A contact element supported in sliding fashion is provided for electrically connecting two contact pins. According to the invention, the contact element is situated on a slider that is connected to an actuating component and the actuating component protrudes laterally from the housing. | 09-22-2011 |
20110267010 | BATTERY CHARGING APPARATUS - The battery charging apparatus is made with small and low-cost components. It includes a first transistor (T | 11-03-2011 |
20130069595 | Hand tool device having at least one charging coil - A hand tool device having at least one charging coil, which includes at least one coil core which is at least partially made of a ceramic material and which is provided for transmitting energy. The coil core may be configured as a composite component. | 03-21-2013 |
20130127259 | DEVICE AND METHOD FOR INDUCTIVE POWER TRANSMISSION - A device for inductive power transmission includes an oscillating circuit having an inductance and a capacitance, a power component for exciting an electric oscillation in the oscillating circuit, a determination unit for determining an input current of the power component, and a frequency shifting unit designed to vary a resonant frequency of the oscillating circuit. | 05-23-2013 |
20130199913 | ELECTRICAL SWITCH DEVICE FOR A MACHINE TOOL - An electric switch device for a machine tool has a switch-side contact element, that is held movably and is in contact, in a contact position, with a mating contact element so as to close a circuit. The switch-side contact element is a switching spring, which is acted upon by its internal stress to move into the out-of-contact position. | 08-08-2013 |
20130278208 | STORAGE-BATTERY INDUCTIVE CHARGING DEVICE - A storage-battery inductive charging device, particularly a hand-held-tool storage-battery inductive charging device, for a motor vehicle, having at least one functional unit and at least one charging coil. The functional unit is intended at least to control a charging process of the charging coil as a function of at least one energy-availability characteristic. | 10-24-2013 |
20130307472 | STORAGE BATTERY INDUCTIVE CHARGING DEVICE - A battery inductive charging device, e.g., a handheld tool battery inductive charging device for a motor vehicle, has at least one charging coil and an high-voltage energy input which is provided to take up a charging energy. | 11-21-2013 |
20140176047 | HANDHELD TOOL BATTERY DEVICE - A handheld tool battery device includes: a communication unit; at least one cell unit for storing energy; and at least one induction charging unit for charging and/or discharging the at least one cell unit. The communication unit transmits design-specific parameters to a charging device during a charging process. | 06-26-2014 |
20140176064 | SYSTEM - 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. | 06-26-2014 |
20140176065 | BATTERY CHARGING DEVICE FOR A HANDHELD MACHINE TOOL - A battery charging device of a handheld machine tool has a primary inductive charging unit provided to charge handheld machine tool battery devices using at least two different nominal voltages. | 06-26-2014 |
20140180612 | INDUCTIVE CHARGING DEVICE - 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. | 06-26-2014 |
20140340034 | HANDHELD TOOL CARRYING CASE - A handheld tool carrying case includes at least one interior structuring unit having at least one interior structuring element, which is provided to delimit at least one inductive charge receiving region for at least one handheld tool battery. The interior structuring unit is configured to be combinable in a modular manner. | 11-20-2014 |
20150039144 | WIRELESS ENERGY TRANSMISSION - A transmitter for wireless energy transmission includes: a transmission device for generating an alternating magnetic field, a determination device for providing a signal which indicates an object in the area of the transmission device, and a control device for limiting the strength of the alternating field on at least three different levels based on the signal. | 02-05-2015 |