A plane parallel coil device with wireless induction power supply and for rotating shafts of different shaft diameters
A wireless induction and coil device technology, applied in circuit devices, battery circuit devices, electrical components, etc., can solve the problem of low inductive power supply efficiency, and achieve the effects of improving transmission efficiency and stability, simple overall structure, and convenient installation and debugging.
Pending Publication Date: 2018-12-25
SHANGHAI MARINE EQUIP RES INST
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Problems solved by technology
At the same time, due to the practical application, the rotating shaft is generally a metal rotating shaft, and the metal eddy current effect leads to a very low efficiency of the general induction power supply. These problems and inconveniences have brought constraints to the practical application of this technology.
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[0017] like figure 1 Shown is a schematic structural diagram of a planar parallel coil device suitable for wireless inductive power supply of rotating shafts with different shaft diameters, including a transmitting coil, a receiving coil, and a flexible magnetic conductive sheet. The transmitting coil and the receiving coil are facing each other, and the transmitting coil is composed of a pair of parallel-connected transmitting sub-coils 4 with the same structure, and the two transmitting sub-coils 4 are pasted on the flexible magnetic conductive sheet and then fixed. The receiving coil consists of multiple groups of receiving sub-coils 3 connected in parallel to form a receiving coil array, which is isolated and pasted on the surface of the rotating shaft 1 through the flexible magnetic conductive sheet 2 .
[0018] The distance between the two sub-coils of the transmitting coil can be adjusted as required, and the coil and the flexible magnetic conductive sheet can be bent i...
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The invention relates to a plane parallel coil device with wireless induction power supply and for rotating shafts of different shaft diameters, comprising a transmitting coil, a receiving coil and aflexible magnetic conductive sheet. The transmitting coil is directly opposite to the receiving coil. The transmitting coil is composed of a pair of parallel connected transmitting sub-coils with identical structure. The two transmitting sub-coils are stuck on the flexible magnetic sheet and fixed. The receiving coil is composed of a plurality of receiving sub-coils which are connected in parallelto form a receiving coil array, and is isolated and pasted on the surface of the rotating shaft through the flexible magnetic sheet, and rotates with the rotating shaft, so that the coupling coefficient of the transmitting coil and the receiving coil is stable during the rotating process of the rotating shaft. The device can be adapted to rotating shafts with different shaft diameters, has unified structure size, simple overall structure, and convenient installation and debugging, and keeps the coupling coefficient of the transmitting coil and the receiving coil stable in the rotating processof the shaft, so that the transmission efficiency and the stability of the whole induction power supply system can be remarkably improved.
Description
technical field [0001] The invention relates to an inductive power supply technology, in particular to a planar parallel coil device suitable for wireless inductive power supply of rotating shafts with different shaft diameters. Background technique [0002] Due to its safety, convenience, and environmental protection, induction power supply technology has been paid more and more attention in many industrial applications. This technology involves power electronics technology, magnetic coupling technology, automatic control theory, communication protocol and many other aspects. In recent years, as an important application of inductive power supply technology - solving the power consumption and communication problems of high-speed rotating shaft test equipment has been greatly promoted. [0003] Since the transmitting coil and the receiving coil in the inductively coupled wireless power transfer system are separated from each other, there is a large gap in the middle, so ther...
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IPC IPC(8): H02J50/10H02J50/40
CPCH02J7/025H02J50/10H02J50/40
Inventor 戴明王佩君林杰俊马相龙金岫陈平陆国明
Owner SHANGHAI MARINE EQUIP RES INST