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Intrabundle gelling and compressing processing method for large high-voltage motor strip coil bar

A high-voltage motor and processing method technology, applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve problems such as deformation of end geometry and angle, inconsistent position of lead joints, excessive height and dimension, etc. The effect of mold time, shortened production cycle and high slot full rate

Inactive Publication Date: 2010-02-17
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the inter-strands are glued and pressed, it is easy to have technical problems such as inter-strand short circuit, angular deformation of the end geometry, inconsistent position of the lead joint, and excessive height and dimension.

Method used

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  • Intrabundle gelling and compressing processing method for large high-voltage motor strip coil bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Refer to attached figure 1 .

[0022] A large-scale high-voltage motor strip-shaped wire rod inter-strand glue-pressing processing method, the upper and lower layer strip-shaped wire rods that have been shaped are placed on the bracket respectively, insulating materials are pasted and outsourced with polytetrafluoroethylene tape, inter-strand glue The chemical pressure type adopts the same matching forming die and inter-strand gelling die for interchange correction. When the bar-shaped wire rod is formed by the forming die, the tooling design at the lead angle R angle considers the rebound amount of the copper wire 1-3mm.

[0023] The processing process includes: removal of the protective tape process - insulating material blanking process - application of insulating material and outsourcing PTFE tape process - inter-strand glue molding process - cleaning and chamfering process - lead bifurcation process - inter-strand testing Short circuit process - lead wire sealing ...

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PUM

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Abstract

The invention relates to an intrabundle gelling and compressing processing method for a large high-voltage motor strip coil bar, belonging to the technical field of motors. The intrabundle gelling andcompressing processing method for a large high-voltage motor strip coil bar is characterized by comprising the following steps: respectively stacking reformed strip coil bars at the upper layer and the lower layer on a bracket; attaching an insulating material and externally coating a polytetrafluoroethylene belt; interchanging and correcting an intrabundle gelling and compressing die by a consistently matched molding die and an intrabundle gelling die; and when the strip coil bars are molded in the molding die, retaining 1-3 mm of copper lead rebound in lead angle tool equipment. The invention has the advantages of simple process, full insulation filling, high groove fullness rate and production efficiency, consistent coil bar size, no deformation of end geometrical shape, attractive appearance, short manufacture period of the coil bars, stable electric performance, and the like.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a processing method for gelling and pressing between strands of bar-shaped wire rods of large-scale high-voltage motors. Background technique [0002] At present, the design of large-scale high-voltage motor strip wire bar transformation unit is updated from 36 copper wires to 48 copper wires, and the cross-sectional size remains the same, the strands are thinner, and the pitch is small to reduce the circulation of wire rods. Due to the many strands and few pitches, the end geometry is complex and the cross-sectional size is large. When the inter-strands are glued and pressed, it is easy to have technical problems such as inter-strand short circuit, angular deformation of the end geometry, inconsistent position of the lead joint, and excessive height and dimension. Contents of the invention [0003] In order to solve the technical problems in the known technology, t...

Claims

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Application Information

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IPC IPC(8): H02K15/04
Inventor 路春玲
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD