Title:
OUTER ROTOR TYPE BRUSHLESS MOTOR
Document Type and Number:
Japanese Patent JP2022149738
Kind Code:
A
Abstract:
To provide an outer rotor type brushless motor capable of assembling a plurality of bearings thereinto from the same direction.SOLUTION: The outer rotor type brushless motor comprises: a shaft with axial one end side fixed to a stator and extendedly provided in a shaft direction; a first bearing with an inner ring in contact with the shaft and an outer ring fixed to a rotor; a second bearing with an inner ring fixed to the shaft on the other side of the first bearing in the shaft direction; and a cylindrical bearing holder with an outer peripheral surface fixed to the rotor and an inner peripheral surface to which an outer ring of the second bearing is fixed. The bearing holder comprises a protrusion that protrudes onto the other end side of the rotor in the shaft direction, and a plate extending outward in a radial direction is attached entirely in a circumferential direction onto an outer peripheral surface of the protrusion.SELECTED DRAWING: Figure 1
Inventors:
NAGAMOTO SATOJI
HOSOI KEIICHI
WATANABE SHINGO
TONEGAWA TAKESHI
HOSOI KEIICHI
WATANABE SHINGO
TONEGAWA TAKESHI
Application Number:
JP2021052017A
Publication Date:
October 07, 2022
Filing Date:
March 25, 2021
Export Citation:
Assignee:
MITSUBA CORP
International Classes:
H02K7/08; H02K5/16; H02K29/00
Attorney, Agent or Firm:
Patent Attorney Corporation Sakamoto International Patent and Trademark Office