Processing method of copper coil for special motor

Abstract

The invention discloses a processing method of a red copper coil for a special motor. A red copper coil is manufactured by adopting a PCB manufacturing process, firstly, a circuit pattern of the red copper coil is designed, a plurality of copper wires are arranged in a 360-degree rotating mode to form the circuit pattern with a small circle pattern in the center and a large circle pattern on the periphery, and a film is drawn after pattern line segments of a single copper wire on the circuit pattern of the red copper coil are compensated in a segmented mode; then cutting the large copper plate, and removing a surface oxide layer through an inner-layer pretreatment line; drying, exposing, developing and etching after double-sided coating of a wet film to form a large red copper coil plate;and finally, dividing the plate to form single red copper coil unit plates. According to the invention, production is carried out by using a part of manufacturing procedures of the PCB, the wet film is adopted to cover the copper wire, and the residual copper is removed by using a chemical etching mode to form the single copper wire which is arranged in a 360-degree rotation manner, so that the production efficiency is high, the cost is lower than that of laser processing, and various parameters of a finished product completely meet the requirements of customers.

Description

technical field [0001] The invention relates to a processing method of a copper coil, in particular to a processing method of a copper coil for a special motor. Background technique [0002] With the increasing demand for various special motors (flat motors) and gradually developing towards high performance (such as light weight, small size, sensitive acceleration and deceleration, low energy consumption, etc.), the internal traditional enameled wire coil has been unable to To meet the demand, copper (pure copper) strips are well used in this field because of their good electrical conductivity, thermal conductivity and plasticity. The thickness of copper (pure copper) strips is between 0.2-0.4mm (selected according to different motor powers), and the line widths of the line segments are not equal. Melting will cause reflection interference to the laser, causing the tolerance of the finished line width to be controlled within +0.2 / -0.2mm, and the edge of the line is not even...

AI Technical Summary

Problems solved by technology

[0002] With the increasing demand for various special motors (flat motors) and gradually developing towards high performance (such as light weight, small size, sensitive acceleration and deceleration, low energy consumption, etc.), the internal traditional enameled wire coil has been unable to To meet the demand, copper (pure copper) strips are well used in this field because of their good electrical conductivity, thermal conductivity and plasticity.

The thickness of copper (pure copper) strips is between 0.2-0.4mm (selected according to different motor powers), and the line widths of the line segments are not equal. Melting will cause reflection interference to the laser, causing the tolerance of the finished line width to be controlled within +0.2 / -0.2mm, and the edge of the line is not even, and there will be copper bumps in unfixed positions, which cannot meet the use requirements. And the processing efficiency is extremely low

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