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Patent Searching and Data


Title:
BRUSHLESS MOTOR
Document Type and Number:
Japanese Patent JP11018359
Kind Code:
A
Abstract:

To provide a small-sized thin brushless motor of high quality, by solving a problem that the rotation center of a shaft abuts obliquely against thrust pad resin, and a shaft loss and rotation irregularity which are caused by decentering of the rotation center are deteriorated, in a brushless motor wherein position regulation of a shaft in the thrust direction is performed with a thrust pad plate via thrust resin.

A thrust pad holder 12 and a thrust plate fixing part 13 are constituted in a bearing and fixed to a bearing housing. Thrust pad resin receives a shaft end face turning to the rotation center which regulates the position of a central hole of the bearing 2 turning to a shaft pivoting part, and the position of a shaft in the thrust direction. By fixing a thrust pad plate to the bearing 2 via the thrust pad resin, the shaft pivoting part can be made vertical to the thrust pad face, so that a brushless motor of high quality which prevents deterioration of shaft loss and rotation irregularity can be obtained.


Inventors:
Kuroda, Minoru
Application Number:
JP1997000163959
Publication Date:
January 22, 1999
Filing Date:
June 20, 1997
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F16C17/10; H02K5/167; H02K21/24; F16C17/00; H02K5/167; H02K21/12; (IPC1-7): H02K5/167; F16C17/10; H02K21/24