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:
Aug. 15, 2000
Filed:
Jul. 10, 1998
Kazuhiro Takeda, Komaki, JP;
Hitoshi Urakami, Inukami-Gun, JP;
Nidec Corporation, Kyoto, JP;
Abstract
The brushless motor according to the present invention is small in overall height without deterioration of the rotational accuracy. One of a pair of bearings is interposed between the base plate and the rotor and located on the radially outside of the other one of the bearings. A plurality of receiving holes is formed on the base plate to correspond to the teeth of the stator core to provide an axially space for respectively accommodating coils wound around the stator core. Thus, in spite of the motor having such a small axial clearance between the base plate and the rotor, sufficient amount of winding of coil is ensured. The receiving holes are closed from the outside of the motor with a sheet member and an adhesive is filled therein for fixedly securing the coil of the stator. The adhesive further acts as a damper to absorb magnetic vibration generated at the stator.