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A motor and rotor technology, applied in the shape/style/structure of the magnetic circuit, other household appliances, transportation and packaging, etc., can solve the problems of hindering high output and magnetic flux flow, and achieve the effect of high output

Active Publication Date: 2022-06-03
JAPAN SERVO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the position of the crimping part in the stator core may hinder the flow of magnetic flux, which may be the main cause of hindering high output

Method used

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Embodiment Construction

[0024] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0025] FIG. 1 is a perspective view of the motor of the present embodiment viewed from the upper side. FIG. 2 is a view of the horse of the present embodiment from the lower side

[0027] In addition, in the present application, the "parallel direction" also includes a substantially parallel direction. In addition, in this application, "vertical

[0028] The motor 11 of the present embodiment is used, for example, in a multicopter as a motor that rotates a rotor blade. by

[0029] As shown in FIGS. 1 and 2 , the motor 11 of the present embodiment is an outer rotor type motor. The motor 11 includes: a rotor 13,

[0031] The rotor main body 20 is connected to the upper end of the shaft 21. The rotor main body 20 passes through the upper surface of the stator 30 from the upper end of the shaft 21 to

[0032] The rotor disk portion 24 has a plurality of rotatin...

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Abstract

A motor according to one aspect of the present invention includes: a rotor that rotates around a central axis; and a stator that opposes the rotor in the radial direction. The back of the iron core has a plurality of teeth extending to one side in the radial direction. The stator core has laminated steel plates. The laminated steel plates are formed by overlapping a plurality of electromagnetic steel plates in the direction of the central axis. A crimping part where adjacent electromagnetic steel plates are connected, and the crimping part has a protrusion protruding from the back of the iron core to the other side in the radial direction.

Description

motor technical field [0001] The present invention relates to motors. Background technique [0002] Conventionally, a multi-rotor aircraft that flies in the air by rotating a propeller by a motor is known (Patent Document 1). [0003] The multi-rotor aircraft requires high output from the motor. As one method for increasing the output of the motor, there can be mentioned Increase the magnetic flux. [0004] Patent Document 2 discloses that stress relief annealing is performed on a stator core formed by laminating a plurality of electromagnetic steel sheets, Thereby, the technology of manufacturing a stator core with small hysteresis loss and excellent magnetic properties. Patent Document 1: Japanese Patent Laid-Open No. 2017-184504 [0006] Patent Document 2: Japanese Patent Laid-Open No. 2013-192417 [0007] The plurality of laminated electromagnetic steel sheets are press-fitted and connected to each of the tenon portions provided. However, it may be due to The pos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/14
CPCH02K1/146H02K1/2791H02K3/522H02K1/187H02K21/22H02K7/14H02K1/04B64C27/32B32B7/12B32B2457/00B32B15/18H02K2201/09B32B2255/06B32B2255/28B32B2307/714B32B15/043
Inventor 今泉纪寿仲川刚史
Owner JAPAN SERVO CO LTD