無線給電システム

Japanese Patent JP7322618

B2

To provide a wireless power supply system including a power reception side device that is downsized and light-weighted even when power to be transmitted is increased.SOLUTION: A wireless power supply system 10 comprises a power transmission side device 11 and a power reception side device 12 that receives power supplied from the power transmission side device 11. Power reception electrode units 26 face power transmission electrode units 22 to receive high frequency power in a non-contact manner using electric field coupling, the high frequency power output from the power reception side device 12. The power transmission side device 11 includes both of a power transmission side circuit unit 31 and a power reception side matching circuit unit 31 that perform impedance matching with respect to power generated at a high frequency wave generation unit 21 between the power transmission side device 11 and the power reception side device 12. The power transmission side device 11 includes a resonance circuit unit 33 provided between the high frequency wave generation unit 21 and the power transmission electrode units 22, the resonance circuit unit canceling electric capacitance between the power transmission electrode units 22 and the power reception electrode units 26 and capacitance between the pair of power transmission electrode units 22 to make electrically equivalent transfer paths between the power transmission electrode units 22 and the power reception electrode units 26.SELECTED DRAWING: Figure 1

Masayoshi Sugino
Naka Ichikawa

JP2019167183A

August 08, 2023

September 13, 2019

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株式会社デンソー

H02J50/05

JP2014197928A

CN107852029A

Patent Attorney Corporation Sato

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