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Motor and its mfg. method

A manufacturing method and motor technology, which are applied in the manufacture of motor generators, the manufacture of stator/rotor bodies, the shape/style/structure of winding insulation, etc., can solve the problems of expensive manufacturing equipment, high product price, and poor heat dissipation.

Inactive Publication Date: 2006-09-13
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although this method called coil molding can shorten the axial length of the motor to a certain extent, there is a problem that the product price is very high because the manufacturing equipment of the product is expensive.
[0008] In addition, since the entire cover is made of resin, there is also a problem of poor heat dissipation.

Method used

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  • Motor and its mfg. method
  • Motor and its mfg. method
  • Motor and its mfg. method

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Experimental program
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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0022] figure 1 Only one side (upper side in the figure) of the axial cross section of the motor according to the embodiment of the present invention is shown in cross section.

[0023] The motor 10 includes a stator 18 including a coil 14 and a fixed iron core 16 , and a rotor 20 rotatably arranged inside the casing 12 . The housing 12 has a load-side cover 12B and a counter-load-side cover 12C on both sides of a cylindrical main body 12A. However, in this embodiment, the main body portion 12A and the counter-load side cover portion 12C are integrated to form a bottomed cylindrical housing 12S. The cover 12 is made of a material with good heat dissipation, such as steel or aluminum.

[0024] In the stator 18 , the fixed core 16 is fixed to the inner periphery of the main body portion 12A of the housing 12 , and a part of the coil 14 extends to both sides in the a...

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PUM

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Abstract

The object of the present invention is to provide a motor with which the insulation and heat dissipation can be enhanced with low cost, and especially, the gap between the axial end surface of the coil, and the side lid body part of the load or the opposed lid body part on the load side can be reduced. When silicone insulators 50, 52 having extension property and better insulation than that of air contact with both of the inner side surfaces 12B1, 12C1 and axial end surface 14A, 14B of the lid body part, silicone insulators 50, 52 are sandwiched between the inner side surfaces 12B1, 12C1 of the lid body part 12B on the load side and the lid body part 12C opposed to the load side, and the axial end surface 14A, 14B of the coil 14 facing the inner side surface 12B1, 12C1.

Description

technical field [0001] The present invention relates to a motor including a stator having a coil and a fixed iron core, and a rotor rotatably arranged inside a housing, and a method of manufacturing the motor. Background technique [0002] A general motor includes a stator and a rotor inside a housing. The stator has a coil and a fixed iron core, and the rotor is rotatably arranged inside. In most cases, the housing has a load-side cover and an anti-load-side cover on both sides of a substantially cylindrical main body. [0003] Minimal insulation such as enamelling is applied to the winding of the above-mentioned coil. When the wires face each other through the air, they must be separated by a specified distance in accordance with IEC.JIS standards. Therefore, generally, corresponding intervals are formed from the coil and the axial end surface to the load-side cover or the counter-load-side cover. [0004] As a method of keeping this space as small as possible, a specia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/32H02K15/10H02K3/38H02K1/18H02K5/16H02K5/20H02K15/00H02K15/02
CPCH02K3/345H02K3/38H02K15/105
Inventor 竹岛丰
Owner SUMITOMO HEAVY IND LTD