Title:
MOTOR AND AIR BLOW DEVICE
Document Type and Number:
Japanese Patent JP2019180199
Kind Code:
A
Abstract:
To provide a motor that is easy to be assembled and has high rotational accuracy.SOLUTION: There is provided a motor with a rotor that rotates around a central axis J that extends vertically, comprising a base portion 11 which is located below the rotor and holds a bearing 13, and a chip holder 161 that is held by the base portion and accommodates an attracting magnet 162. The chip holder includes a plate-like bottom portion 165, a cylindrical portion 166 extending from the bottom portion, and a flange portion 167 that extends radially outward from the cylindrical portion. At least a part of the flange portion is fixed inside the base portion. At least a part of the top surface 1650 of the bottom portion is orthogonal to the central axis, and the axial length of the attracting magnet is shorter than the axial length of the cylindrical portion, the lower surface of the attracting magnet is in contact with at least a portion 1652 of the upper surface of the bottom portion, and at least a portion of the radially outer surface of the attracting magnet is in contact with the radially inner surface of the cylindrical portion.SELECTED DRAWING: Figure 4
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Inventors:
YOSHINO SHINGO
ANDO SADAAKI
ANDO SADAAKI
Application Number:
JP2018069798A
Publication Date:
October 17, 2019
Filing Date:
March 30, 2018
Export Citation:
Assignee:
NIHON DENSAN KK
International Classes:
H02K5/167; H02K1/14; H02K1/18; H02K3/46; H02K3/50; H02K7/14; H02K11/33
Domestic Patent References:
| JP2008228482A | 2008-09-25 | |||
| JP2007139185A | 2007-06-07 | |||
| JP2007037365A | 2007-02-08 |
Attorney, Agent or Firm:
Sano patent office