Title:
Brushless motor
Document Type and Number:
Japanese Patent JP6315790
Kind Code:
B2
Abstract:
A brushless motor includes: a rotor including a magnet; and a stator including at its center a space for placing the rotor. The rotor includes: a rotor core; and a plurality of magnets. The rotor core includes a plurality of magnet holders radially formed around a rotating shaft. The magnets are housed in the magnet holders such that the same magnetic poles of adjacent magnets face each other in a circumferential direction of the rotor core, and the stator includes a plurality of teeth formed toward the center to face the rotor. Given that a radius of curvature of an outer circumference of the rotor core is R, a width of an end of the teeth in a circumferential direction is W, and a maximum outer diameter of the rotor core is L, 0.9≦R/W≦4.2 and R
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Inventors:
Yuichiro Matsuoka
Application Number:
JP2014094086A
Publication Date:
April 25, 2018
Filing Date:
April 30, 2014
Export Citation:
Assignee:
Mabuchi Motor Co., Ltd.
International Classes:
H02K1/27; H02K1/22; H02K21/16
Domestic Patent References:
JP2012517209A | ||||
JP2009153299A | ||||
JP2000197292A | ||||
JP2013099171A | ||||
JP10066285A |
Attorney, Agent or Firm:
Sakaki Morishita
Yusuke Murata
Tomoyuki Miki
Yusuke Murata
Tomoyuki Miki
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