Method and device for manufacturing stator with skewed slots

A manufacturing method and a technology for a manufacturing device, which are applied in the field of the manufacture of a stator with a slanted slot and the manufacturing device thereof, can solve the problems such as the inability to pull out the central column 8 straightly, the complicated structure, etc., so as to reduce damage and improve the space factor. Effect

Active Publication Date: 2014-07-16
NITTOKU ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the skewed helical twist guide portion 8a is actually formed directly on the outer periphery of the central column 8, if the deflected stator core 1 or the skewed central column 8 is not aligned with its degree of twist Rotate, then there is the defect that the central column 8 cannot be pulled out straightly from the stator core 1
Therefore, there still remains a problem that should be solved, that is, a new structure that rotates the stator core 1 or the skewed center column 8 corresponding to the degree of its twist is required, and the structure is very complicated.

Method used

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  • Method and device for manufacturing stator with skewed slots
  • Method and device for manufacturing stator with skewed slots
  • Method and device for manufacturing stator with skewed slots

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Embodiment Construction

[0040] Next, the form for implementing this invention is demonstrated in detail based on drawing.

[0041] Such as figure 1 and figure 2 As shown, the manufacturing method of the stator with skewed slots of the present invention is as follows: the ring-shaped coil 20 is inserted into each slot 14 parallel to the axial direction of the stator core 11 in a winding manner, and then twisted so that each magnetic metal The pieces 16 are gradually staggered in the circumferential direction, and the stator core 11 is formed by laminating a plurality of magnetic metal pieces 16 . The stator core 11 is made of a magnetic material having an annular portion 12 and a plurality of teeth 13 ( figure 2 ), between a plurality of teeth 13 is formed a coil edge portion 21 ( figure 1 ), a plurality of grooves 14, and a plurality of teeth 13 protrude from the inner peripheral surface of the annular portion 12 at the center of the annular portion 12.

[0042] That is, the stator core 11 ha...

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Abstract

The invention provides a method and device for manufacturing a stator with skewed slots, which can reduce damage to the stator and a protruding amount of a coil end when the stator is turning around. In the method, a coil (20) is inserted into a slot (14) parallel with a stator core (11) in a roll hang mode; the stator core is then turned around to gradually stagger magnetic metal sheets (16) in a circumferential direction, wherein the stator core is formed by stacking a plurality of magnetic metal sheets. An extending part (22a) straight extending along an extension line of the slot (14) is formed on a coil end part (22) protruding from an end surface of the stator core inserted with the coil (20). The coil end part (22) protruding from the end surface of the stator core inserted with the coil and the coil end part (22) protruding from the other end surface respectively form an extension part; an extension part (22a) of another coil end part (22) is formed along an extension line of another slot (14) except the continuous slot (14) of the extension part (22a) of the coil end part (22).

Description

technical field [0001] The present invention relates to a method of manufacturing a stator with skewed slots, in which coils are mounted on a stator core formed by laminating magnetic metal sheets and twisted so that the metal sheets are gradually displaced. Background technique [0002] Conventionally, a stator of a rotating electric machine has a cylindrical stator core having a plurality of teeth (magnetic poles) arranged radially and protruding toward the inner diameter direction, and a plurality of slots opening between the teeth; a stator coil , the stator coil is assembled to the stator core by accommodating coil sides in the slots. The stator core is formed by laminating a plurality of magnetic metal sheets. A so-called insertion method is known for the assembly of the stator coil, that is, the ring-shaped stator coil and the stator core are manufactured separately in advance, and then the stator coil is assembled using an insertion device. The coils are accommodate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02H02K15/08
Inventor 梶田効
Owner NITTOKU ENG CO LTD
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