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Motor

A technology for electric motors and electric wires, which is applied in the field of small electric motors, and can solve the problems of difficult wire clamping, poor wire clamping accuracy, poor connection, etc., and achieves good clamping and elimination of poor welding effects

Inactive Publication Date: 2006-11-15
COPAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In contrast, in a small motor, if the number of turns of the coil is increased, the flange must be formed in a special Y-shape. Since the shape of the flange is formed in a special shape, it is difficult for the wire to be caught in the The cut-in part of the commutator piece, as a result, the hooking accuracy of the wire relative to the cut-in part deteriorates, and when the wire is brazed to the commutator piece, there may be poor connection

Method used

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Embodiment Construction

[0028] Hereinafter, preferred embodiments of the motor of the present invention will be described in detail with reference to the accompanying drawings.

[0029] Such as Figure 1 ~ Figure 3 As shown, the motor 1 is composed of a tubular motor, and has a cylindrical metal casing 2, and a resin bracket (not shown) for assembling a pair of brushes is fixed to the rear end of the casing 2. The motor 1 is a small motor, and the housing 2 has a cylindrical shape with a diameter of 10 mm or less (for example, 6 to 3 mm) and a length of about 1 cm. A stator 3 and a rotor 6 are accommodated in the small housing 2 .

[0030] A stator (magnet) 3 made of permanent magnets having N and S poles is fixed on the inner wall surface 2a of the casing 2, and a rotor 6 is accommodated inside the casing 2. The rotor 6 has a coil C, and the wire W of the coil C It is wound on the pole 5a of the core 5 having three core slots (slots). In addition, the iron core 5 of the rotor 6 is formed by lamina...

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Abstract

To provide a motor wherein torque is increased and the hooking of an electric wire on a commutator piece is improved for the promotion of downsizing and defective soldering is eliminated when the electric wire is soldered to a commutator piece. The motor 1 adopts a sleeve 12 having a circular flange 12a so that the hooking of an electric wire W on a notch 16 for hooking the electric wire in a commutator piece 11 is improved and defective soldering is prevented when the electric wire W is soldered to a commutator piece 11. In the sleeve 12 having such a circular flange 12a, the gap between a core 5 and the circular flange 12a is reduced in size, and this causes a problem of a reduced number of turns of a coil C. In order to cope with this, the circular flange 12a is formed with a recess 20 in a position opposing the coil C in the axial direction of a shaft 7.

Description

(1) Technical field [0001] The present invention relates to a small electric motor, and more particularly to an electric motor having a commutator for reversing the current flowing through the rotor coils. (2) Background technology [0002] Conventionally, there is Japanese Patent Application Laid-Open No. 9-117109 as a technology in this field. The commutator described in this gazette is configured such that a commutator segment made of a thin metal plate is mounted in a resin bushing, and the vertical segment portions of the commutator segments protrude from the flange portion of the bushing. In addition, the flange portion of the bushing has a circular or special Y-shaped shape, and in either case, the flange portion can reinforce the vertical piece portion of the commutator segment. [0003] Patent Document 1: Japanese Patent Laid-Open No. 9-117109 [0004] Patent Document 2: Japanese Patent Laid-Open No. 10-271769 [0005] In a motor, it is necessary to increase the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K13/04H01R39/04
CPCH01R39/04H02K1/185H02K1/26H02K13/006
Inventor 高桥厚德武田芳正
Owner COPAL CO LTD
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