Rotating Electric Machine Harness Routing for Stable Terminal Connections
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Solution Overview
Problem
In rotating electric machines, the reduced space within the case leads to interference between the wire harness and power lines, causing potential loosening of connections and damage to welds between terminals and power lines.
Innovation Solution
A harness retainer with a plate-like shape is integrated into the terminal block, guiding the wire harness toward the inner circumferential wall of the case, preventing interference with power lines and maintaining stable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the size of rotating electric machines is reduced to get smaller, then the productivity and compactness are improved, but the space inside the case is reduced causing interference between wire harness and power line
Solution Approach 1:
A harness retainer is introduced as an intermediary component between the wire harness and the case inner wall. The retainer guides and positions the wire harness, preventing it from contacting the power line while maintaining the compact case structure. This mediator resolves the spatial conflict without requiring增大 case size.
2Productivity
If the space inside the case is reduced, then the compactness is improved, but the connection between terminal and terminal block may be loosened or weld may be damaged
Solution Approach 1:
The harness retainer is pre-installed on the case inner wall before the wire harness is routed. This preliminary positioning structure ensures that the wire harness follows a predetermined safe path that avoids power lines and connection points, preventing future interference issues and maintaining connection reliability in the compact space.
Data Source
AI summary
A rotating electric machine includes a stator housed in a case, from which a power line is pulled out, and a temperature sensing element provided on the stator. The rotating electric machine includes a harness retainer that guides a wire harness that extends from the temperature sensing element, toward an inner circumferential wall of the case.