Coil manufacturing method

The described method addresses the need for additional connecting parts in coil manufacturing by deforming and positioning coils to avoid tool interference, enabling efficient production of connected coils with reduced parts and improved performance.

JP7873327B1Active Publication Date: 2026-06-11AMADA CO LTD +2
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
AMADA CO LTD
Filing Date
2025-03-12
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing methods for manufacturing multiple connected coils require additional connecting bodies and increased manufacturing time due to the need for substrates or jumper wires to electrically connect each coil.

Method used

A method for manufacturing coils that involves deforming a conductor to form a connecting wire between coils, moving pre-formed coils to a non-interference area, and then winding the conductor to form the next coil, reducing interference with tools, thereby eliminating the need for additional connecting parts and simplifying the manufacturing process.

Benefits of technology

This method allows for the efficient production of multiple connected coils with reduced parts and connection work, lowering winding resistance and improving performance in applications like motor coils.

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Abstract

The present invention provides a coil manufacturing method that reduces the number of parts and connection steps, enabling the production of multiple connected coils. [Solution] The method for manufacturing a coil involves using a tool (91) to deform a conductor (W), winding the conductor (W) to form a first coil (C1), forming a connecting wire (C12) between the winding end (C1b) of the first coil (C1) and the winding start end (C2a) of the second coil (C2) to be formed next, deforming the connecting wire (C12) so that the first coil (C1) is moved to an area (AR2) where it does not interfere with the tool (91) when forming the second coil (C2), and then winding the conductor (W) after deforming the connecting wire (C12) to form the second coil (C2).
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