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:
Oct. 23, 2018
Filed:
Sep. 02, 2014
Mitsuba Corporation, Gunma, JP;
Webasto SE, Stockdorf, DE;
Yuichi Takamura, Gunma, JP;
Masaya Ota, Gunma, JP;
Toyohisa Harada, Gunma, JP;
Susumu Okochi, Gunma, JP;
Werner Lissner, Starnberg, DE;
Bernhard Meier, Kirchheim, DE;
Mitsuba Corporation, Kiryu-shi, Gunma, JP;
Abstract
An object of the present invention is to provide an electric motor which can prevent electric noise generated from a contact between a brush and a commutator from being radiated and diffused to the outside. An electric motor comprises: an armature shaft; a coilattached to the armature shaft; a commutatorattached to the armature shaft, and electrically connected to the coil; a brush through which an electric current is supplied to the commutator; a conductive shaft bearingconfigured to rotatably support the armature shaft; a yokeincorporated with the shaft bearing, and electrically connected to a ground conductor; a conductive shaft bearingarranged in a direction along a center line of the armature shaft, different in position from the shaft bearing, and configured to rotatably support the armature shaft; and a contact plateelectrically connected to the shaft bearing, and electrically connected to the ground conductor.