Elastic Clip Coil Wire Connection for Rotating Machine Assembly

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Solution Overview

Problem

The existing methods for connecting rectangular conducting wires in rotating electric machines, such as TIG welding, are complex and inefficient, making it difficult to facilitate effective connections between coil wires.

Innovation Solution

A coil wire module with a clip having a pair of elastic pieces that elastically deform to pinch together connection ends of coil wires, ensuring they remain in contact and allowing for simplified and efficient connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If TIG welding is used to connect busbars and rectangular conducting wires, then reliable electrical connection is achieved, but the connection process becomes complex and time-consuming

Engineering Contradiction:
Improveconnection reliabilityVSAvoidconnection process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a clip as an intermediary component that mechanically connects the busbar and coil wire together. The clip has a body portion that fits into a groove on the busbar and clamping portions that hold the coil wire, serving as a mediator between the busbar and coil wire to achieve reliable connection without direct welding

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the TIG welding process (thermal/mechanical system) with a mechanical clipping system. Instead of using heat and electricity to fuse the components together, the invention uses a purely mechanical clipping mechanism to achieve the connection, thereby simplifying the connection process while maintaining reliability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If TIG welding is used to connect rectangular conducting wires, then strong electrical connection is achieved, but manufacturing efficiency decreases

Engineering Contradiction:
Improveelectrical connection strengthVSAvoidmanufacturing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The clip acts as a mediator that provides a reliable mechanical and electrical connection between the busbar and coil wire without requiring welding operations, thereby maintaining connection strength while improving manufacturing efficiency

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connection system is segmented into distinct components: the busbar, the coil wire, and the clip. This segmentation allows for independent manufacturing and assembly of each component, improving manufacturing efficiency while maintaining reliable electrical connection through the specialized clip design

Inventive Principle:
Principle #1Segmentation

3Reliability

If rectangular conducting wires are inserted into notches and welded, then secure connection is achieved, but the assembly process becomes complex

Engineering Contradiction:
Improveconnection securityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The clip serves as an intermediary that simplifies the assembly process by providing a snap-fit or clamp mechanism that secures the coil wire to the busbar without requiring insertion into notches or welding operations, thereby improving ease of operation while maintaining connection security

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The clip design incorporates dynamic elements such as elastic clamping portions or snap-fit mechanisms that allow for easy assembly and disassembly while maintaining secure connection during operation, improving ease of operation without compromising connection security

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates easy and reliable connections between coil wires, enabling miniaturization of the coil wire module and enhancing yield in manufacturing by reducing protrusion and simplifying the assembly process.

Implementation Method 1

the clip being elastically deformable in a manner that changes a width of the pair of elastic pieces

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12549052B2Coil wire module
Publication Date: 2026.02.10 AUTONETWORKS TECH LTD
  • US12549052B2 patent drawing
  • US12549052B2 patent drawing
  • US12549052B2 patent drawing

AI summary

A coil wire module for a rotating electric machine, the core wire module including: a plurality of coil wires that are configured to be provided in a core of the rotating electric machine; and a clip having a pair of elastic pieces, wherein: the plurality of coil wires each have a connection end that is configured to be exposed from an end of the core, the clip is elastically deformable in a manner that changes a width of the pair of elastic pieces, and in a state where the pair of elastic pieces pinch together at least two of the connection ends of the plurality of coil wires, the at least two of the connection ends are kept in contact with each other by an elastic force of the clip.