The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2021
Filed:
Jun. 17, 2020
Toyoda Gosei Co., Ltd., Kiyosu, JP;
TOYODA GOSEI CO., LTD., Kiyosu, JP;
Abstract
To realize a vertical type wireless charging device capable of detecting a metal foreign object. The wireless charging device comprises a holder, a power transmission coil, a thermal sensor, a controller, and a warning device. The power transmission coil is disposed outside the side part of the holder. The thermal sensor is disposed at the bottom part of the holder. When the temperature rising rate is not less than 20° C. per five minutes, the controller judges that a metal foreign object exists between the power transmission coil and the electronic device, and the foreign object generates unusual heat. The controller stops wireless charging from the power transmission coil to the electronic device. The controller starts the warning device to alert the user that a foreign object is mixed in the holder and generates unusual heat.