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:
May. 22, 2018
Filed:
Jul. 29, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yuichiro Sadanaga, Osaka, JP;
Abstract
A motor of the present invention includes a stator in which a coil is wound around a stator core, and a magnetic circuit unit having a rotor. The rotor holds a rotor magnet disposed facing the stator core and a sensor magnet for position detection with a rotation shaft in the center. The motor further includes an electronic circuit unit having a circuit board on which circuit components including a magnetic detection element are mounted, and a partition disposed between the magnetic circuit unit and the electronic circuit unit for separating their spaces. The motor has an auxiliary sensor magnet disposed facing the sensor magnet with the partition and the magnetic detection element in between. The auxiliary sensor magnet is fixed and supported by a rotatable auxiliary shaft disposed independent from and coaxial with the rotation shaft.