WIRELESS POWER SUPPLY DEVICE AND WIRELESS POWER SUPPLY METHOD

Japanese Patent JP2020005468

A

To provide a wireless power supply device that, when an object is present within a predetermined range, weakens the intensity of a radio wave arriving at the position of the object without stopping power supply to an object to be fed by radio wave.SOLUTION: A wireless power supply device 100 comprises: an antenna array 3; a storage unit 15 that preliminarily stores information indicating the position or the direction of an object 1 to be fed; an environment information input unit 13 that receives input of environment information within a predetermined range A; a detection unit 11 that detects the presence or absence and the position of an object 50 within the predetermined range A on the basis of the input environment information; and a directivity control unit 10 that controls the directivity of the array antenna 3 on the basis of a result of detection performed by the detection unit 11 such that the intensity of a radio wave emitted in the direction of the detected object 50 is weakened compared with a case where a power is transmitted to the object 1 to be fed by radio wave.SELECTED DRAWING: Figure 2

NGUYEN MANH TAI
UEKI DAICHI
SAITO KEISUKE
KAWAI TAKEHIRO
KAWASHIMA YASUSHI
INOUE YUKI
NOSAKA TETSUYA
OBATA JUNJI
MURAI AKITO
FUJIMOTO TAKUYA

JP2018125218A

January 09, 2020

June 29, 2018

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OMRON TATEISI ELECTRONICS CO

H02J50/23; G01S1/68; H01Q3/26; H01Q21/06; H02J50/90; H04B7/06

JP2014217093A	2014-11-17
JP2018523454A	2018-08-16

US20170085126A1	2017-03-23
WO2017004352A1	2017-01-05

Takuji Yamada
Mitsuo Wada
Noriyuki Iwaki

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