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Coil insertion method and coil insertion device

A coil insertion and coil technology, applied in the direction of prefabricated winding embedded in the motor, etc., can solve the problem of high end coils, and achieve the effects of saving coils, efficient stators, and efficient production

Active Publication Date: 2015-07-29
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, even if the thickness of the brandy slot is not thick, when the multi-phase coils are inserted at the same time, because the inner side of the upper end curve of the coil inserted into the slot first will conflict with the outer side of the upper end curve of the coil inserted into the slot later, other equipment must be used to adjust The part where the coil is expected to collide is inserted first and shaped to form a curved shape, so the coil at the end becomes taller

Method used

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  • Coil insertion method and coil insertion device
  • Coil insertion method and coil insertion device
  • Coil insertion method and coil insertion device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The purpose of shortening the height of the end coil protruding from the end face of the stator core is achieved by raising the stator core upward and separating it, and forming a space where the coil does not conflict with the slot guide rod within a certain length range from the lower end face of the stator core. .

[0039] figure 1 It is a diagram illustrating the coil insertion mechanism 10 of the coil insertion device of the present invention through a longitudinal section, figure 2 It is a perspective view of the coil insertion mechanism 10 of the present invention, image 3It is a perspective view of the stator core 30. In order to understand the whole easily, the perspective view of the coil insertion mechanism 10 shows a state in which the embedding stripper 120 extends upward. Figure 4 is a horizontal cross-sectional view of the coil insertion mechanism.

[0040] like image 3 As shown, a plurality of slots 31 for inserting coils are formed inside the st...

Embodiment 2

[0073] Embodiment 2 is to make the coils 300 and slot wedges 35 of each slot inserted without pause even in the process of lifting and separating the stator core 30 upwards. According to the separation distance (α1) between the stator core and the wedge guide bar 140, as the moving distance of the embedded wire stripper 120 only increases the distance (α1) correspondingly, through the extension An embodiment of the speed adjustment mechanism of the wire stripper extension mechanism will be described. In other words, the elongation speed before separation plus the separation speed of the stator core 30 is the elongation speed during the separation process, and the coil 300 and the slot wedge 35 are separated by the above-mentioned coil insertion mechanism to make the embedded wire stripper 120 continue to extend. Smooth insertion with increased insertion resistance also prevents the wedge 35 from bending.

[0074] refer to Figure 12 The separation process is illustrated by t...

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Abstract

The invention relates to a coil insertion method and a coil insertion device. During the operation of embedding of a multi-phase coil into a stator iron core groove, under a condition that the curve portion of the coil protrudes from the top of a stator iron core, the stator iron core is separated from a groove wedge guide rod and then inserted into the coil so that the coil bundle is not in conflict with the groove wedge guide rod. In addition, even during the operation of separation of the stator iron core from the groove wedge guide rod, it is better that the coil and the groove wedge are inserted continously. Besides the application of a separation method of the stator iron core, the coil insertion device is also equipped with a claw-shaped groove wedge clamping portion which has groove wedge clamping grooves and enables the groove wedge to be really inserted into a specified position. Compared with the prior art, the coil insertion method and the coil insertion device of the invention enable the height of the end coil protruding from the transverse plane of the stator iron core to be shortened even the multi-phase coil is inserted.

Description

technical field [0001] The present invention relates to a coil insertion method and a coil insertion device for inserting a pre-wound coil into a slot of a stator core, and more specifically relates to a coil and slot wedge insertion process and a coil and slot wedge insertion mechanism. Background technique [0002] A conventional coil insertion device for inserting a coil into a stator core slot and a coil insertion method using the device are well known. The coil insertion method has better workability than the direct winding method, but has a disadvantage that the height of the end coil protruding from the end surface of the stator core is high. [0003] In order to solve this problem, Japanese Patent Application Publication No. 2003-230258 introduced movable brandy slots and fixed brandy slots around the embedding wire stripper, only by increasing the thickness of the movable brandy slots that move synchronously with the embedded wire stripper. The technology of increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/06
Inventor 細野聖二
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD