US 2015/0311754 A1Published application

Wireless power supply device

AssigneePanasonic Intellectual Property Management Co., Ltd.

InventorHIROYUKI TANI

Life of this patent

Estimating the term…

Loading patent…

Abstract

A wireless power supply device is capable of supplying constant power without fluctuation in transmission efficiency even when small-sized antennas in which the power fluctuates due to the transmission distance are used. The wireless power supply device includes a first power receiving antenna having a power receiving surface facing a power transmission surface of a first transmission antenna and a second power receiving antenna having a power receiving surface facing a power transmission surface of a second power transmission antenna, both are integrally formed and connected to a power supply target. A direction in which the power receiving surface of the first power receiving antenna faces the power transmission surface of the first power transmission antenna is parallel to a direction in which the power receiving surface of the second power receiving antenna faces the power transmission surface of the second power transmission antenna.

Claims10

Dependent claims

A wireless power supply device comprising:

a microwave generator for generating microwaves;
a first power transmission antenna to which microwaves generated by the microwave generator are supplied;
a second power transmission antenna to which microwaves generated by the microwave generator are supplied;
a first power receiving antenna provided between a power transmission surface of the first power transmission antenna and a power transmission surface of the second power transmission antenna, having a power receiving surface facing the power transmission surface of the first power transmission antenna;
and
a second power receiving antenna provided between the power transmission surface of the first power transmission antenna and the power transmission surface of the second power transmission antenna, having a power receiving surface facing the power transmission surface of the second power transmission antenna,
wherein the first power receiving antenna and the second power receiving antenna are integrally formed and connected to a power supply target, a direction in which the power receiving surface of the first power receiving antenna faces the power transmission surface of the first power transmission antenna is parallel to a direction in which the power receiving surface of the second power receiving antenna faces the power transmission surface of the second power transmission antenna.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/615,447Filed 6 Feb 2015
Priority: JP 2014-08916823 Apr 2014
Published: 29 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02J 50/90
Circuit arrangements or systems for wireless supply or distribution of electric power: involving detection or optimisation of position, e.g. alignment
H02J 50/20
Circuit arrangements or systems for wireless supply or distribution of electric power: using microwaves or radio frequency waves
H02J 50/23
Using microwaves or radio frequency waves: characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/27
Using microwaves or radio frequency waves: characterised by the type of receiving antennas, e.g. rectennas