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motor

A motor and stator technology, applied in the field of motors, can solve the problems of high technology required for manufacturing, complex shape of stator core, etc., and achieve the effect of simple structure

Active Publication Date: 2022-06-28
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the stator core itself has a mounting portion, the shape of the stator core becomes complicated, and high technology is required for manufacture.

Method used

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Embodiment Construction

[0022] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification, in the motor A, the direction parallel to the central axis C of the motor A is referred to as the "axial direction", the direction perpendicular to the central axis C of the motor A is referred to as the "radial direction", and the The direction along the circular arc centered on the central axis C of the motor A is referred to as the "circumferential direction". In addition, in this specification, in the motor A, the axial direction is the vertical direction, and the image 3 The upper and lower in the datum are used to define "up and down". In addition, "up" and "down" are directions defined for ease of description, and do not limit the actual installation state of the motor A. Moreover, the case where the upper and lower sides of the acting direction of gravity do not coincide with each other is also included. ...

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Abstract

Provided is a motor including a rotor having a shaft extending along a central axis, a stator radially opposed to the rotor, a bearing rotatably supporting the shaft, an insulating member covering a part of the stator, and a lower portion of the stator in the axial direction. The circuit board is arranged with a gap, the stator has a stator core including a ring-shaped core back and a plurality of teeth, and a coil formed of wires, and the insulating member has: a core back covering part that covers the back of the core; and a protruding portion extending radially outward from the core back cladding portion, the protruding portion having a mounting portion positioned radially outward from the outer edge of the circuit board when viewed from the axial direction and fixed on external devices.

Description

technical field [0001] The present invention relates to motors. Background technique [0002] In a conventional motor, a portion for attachment to an external device is provided on the outer periphery of the stator iron core or a casing covering the stator iron core. For example, in the stator for a rotating electrical machine described in Patent Document 1, three tab-shaped mounting portions protruding radially outward are formed at one end in the axial direction of the stator core, and these mounting portions include through holes for bolting the cover member. hole. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2010-136571 [0004] However, when the stator core itself is provided with the mounting portion, the shape of the stator core becomes complicated, and high technology is required for manufacture. Furthermore, by providing the mounting portion, the weight of the stator core increases. SUMMARY OF THE INVENTION [0005] An object of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/2753H02K1/14H02K3/34H02K5/04H02K11/30
CPCH02K1/2753H02K1/146H02K3/345H02K5/04H02K11/30H02K1/278H02K3/34H02K1/14H02K5/08H02K11/33H02K2211/03H02K7/083H02K5/225H02K7/14H02K3/522
Inventor 石田亮介
Owner NIDEC CORP