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Motor and it's manufacturing method

A manufacturing method and technology of electric motors, applied in the field of electric motors, can solve problems such as difficulty in adjustment, short circuit, insufficient joint strength of plate-shaped members and outer yoke, etc., and achieve the effect of easy adjustment

Active Publication Date: 2009-07-15
SANKYO SEIKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the laser is irradiated, if the laser is too strong, the laser will penetrate the yoke and hit the winding coil. As a result, the winding coil may be disconnected or short-circuited.
On the other hand, if the laser is too weak, the joint strength between the plate member and the outer yoke will be insufficient
In this way, it is necessary to strictly adjust the intensity or time of the laser light to be irradiated, and this adjustment is difficult.

Method used

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  • Motor and it's manufacturing method

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Embodiment Construction

[0049] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0050] First, the structure of the motor 2 according to the embodiment of the present invention will be described.

[0051] figure 1 It is a schematic diagram of the structure of the electric motor 2 which concerns on embodiment of this invention. figure 1 (a) is a partial sectional view of the motor 2 according to the embodiment of the present invention; figure 1 (b) is a plan view of the motor 2 according to the embodiment of the present invention seen from the end surface on the joining plate member 1 side.

[0052] Such as figure 1 As shown in (a) and (b), the motor 2 according to the embodiment of the present invention includes a rotor 23 having a rotating shaft 231, and a stator 21 arranged on the outer peripheral side of the rotor 23 and having a rotor arrangement hole 26 for disposing the rotor 23 on the inner periphery. , the bearing plate 22 inst...

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Abstract

The present invention provides a motor in which a joined state is easily confirmed in a case that a plate-like member is melted to be joined with a stator and provides a manufacturing method for the motor. In the motor (2) comprising a stator (21) which is formed with a rotor arrangement hole (26); a rotor (23) which is disposed in the rotor arrangement hole (26); and a plate-like member (1) which is disposed on at least one end side in an axial direction of the stator (21), the plate-like member (1) is joined with an end face of the stator (21) structured such that a peripheral edge part (11) of the plate-like member (1) is melted.

Description

technical field [0001] The present invention relates to a motor and a method of manufacturing the motor, and more particularly to a motor including a plate-shaped member at least one end side in the axial direction of a stator, and a method of manufacturing the motor. Background technique [0002] A general stepping motor includes a rotor formed of a permanent magnet and a shaft, a bearing that rotatably supports the shaft of the rotor, winding coils, an inner yoke, an outer yoke, and other predetermined components. [0003] These members are assembled using laser welding (see Patent Document 1). With laser welding, components can be positioned and joined with high precision compared to other welding methods. [0004] According to the aforementioned Patent Document 1, for example, when the mounting flange is joined to the outer yoke, laser light is irradiated to penetrate the mounting flange to partially melt the joint surface of the mounting flange and the outer yoke. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K37/14H02K15/02B23K26/00B23K26/21H02K1/06H02K5/16
CPCH02K5/15H02K5/161H02K15/022Y10T29/49009
Inventor 下山武
Owner SANKYO SEIKI MFG CO LTD