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:
Dec. 22, 1998
Filed:
Aug. 23, 1996
Kunihiko Watanabe, Yokkaichi, JP;
Shuichi Kanagawa, Yokkaichi, JP;
Tomohiro Keishi, Osaka, JP;
Shuji Arisaka, Osaka, JP;
Abstract
An electromagnetic coupling device for charging an electric motor vehicle is provided which is easy for handling a charging coupler and hardly lowers electric power transmission efficiency for a long period of time. A charging coupler (10) containing a primary coil (15) is provided with a pair of heat-shielding covers (16), which are pivotably mounted on the coupler (10) by pins (17). When the charging coupler (10) is inserted into a depression (31) in an incoming unit of the electric motor vehicle, guides (21) push lower ends (16a) of the covers (16) to open the covers (16). The primary coil (15) in the charging coupler (10) is electromagnetically coupled to a pair of secondary coils (32, 32) in the depression (31). After charging, when the charging coupler (10) is drawn out of the depression (31), the heat-shielding covers (16) are closed by tension coil springs (18), thereby protecting the primary coil (15) and preventing a person from carelessly touching it.