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Device and method for inductive power transmission

An inductive, energy-based technology that is applied to measuring devices, circuit devices, battery circuit devices, etc., can solve the problems of injury risk, foreign object sending unit and/or receiving unit damage, etc.

Inactive Publication Date: 2013-06-05
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under certain circumstances the foreign object is heated to a high temperature, which can lead to damage to the foreign object, the sending unit and / or the receiving unit
and poses a risk of injury to persons in its vicinity

Method used

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  • Device and method for inductive power transmission
  • Device and method for inductive power transmission

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] figure 1 A system 100 for inductive energy transmission is shown in a very schematic diagram. The system 100 for inductive energy transfer includes a device 110 for inductive energy transfer and an energy receiver 120 . The device 110 for inductive energy transfer can be, for example, a charging device or a charging tray. The energy receiver 120 can be, for example, a small electrical device without cables. The energy receiver 120 can be an electric toothbrush or a mobile phone.

[0021] The device 110 for inductive energy transmission is configured to charge an energy store of the energy receiver 120 , for example a battery or accumulator, and between the device 110 for inductive energy transmission and the energy receiver 120 There is no cable connection between them. To this end, the device 110 for inductive energy transmission has a transmitter unit 111 . The energy receiver 120 has a receiving unit 121 . Transmitter unit 111 and receiver unit 121 are designed...

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PUM

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Abstract

The invention relates to a device for inductive power transmission. The device 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.

Description

technical field [0001] The invention relates to a device for inductive energy transmission according to claim 1 and a method for operating such a device according to claim 4 . Background technique [0002] Devices and methods for inductive energy transmission are known from the prior art. Such devices are used to charge the accumulators of small electrical devices. In this case, a magnetic field is used to transfer energy between a sending unit (charging station) and a receiving unit (battery pack). [0003] Known devices for inductive power transmission are generally designed as resonant converters, which essentially consist of a resonant capacitor and a resonant inductance, which form a resonant transformer. The resonant frequency of the resonant transformer is determined by the resonant capacitor and resonant inductance. In order that energy can be transferred from the charging station to the receiving unit, an inductive coupling is required between the resonant induct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00
CPCH02J7/025H01F38/14G01V3/101H02J50/12H02J50/60H02J7/02
Inventor G·洛尔J·马克
Owner ROBERT BOSCH GMBH