Wiring Member Adhesion for Rotating Electrical Machine Vibration
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Solution Overview
Problem
Wiring members for rotating electrical machines are prone to damage due to vibration, as the holding portions are not fixed to surrounding members, leading to potential damage from wobbling or collisions with the stator core.
Innovation Solution
A wiring member with a holding portion that is adhered and fixed to a stator core using an adhesive, which also fixes the coil pieces to the core, providing stability and preventing damage from vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the holding portion is not fixed to surrounding members, then the wiring member is easy to assemble, but the connected portions are damaged by wobbling movement or repeated collision with stator core due to vibration
Solution Approach 1:
The patent introduces an adhesive as an intermediary substance to bond the holding portion to the stator core. This mediator enables reliable fixation without complex mechanical fastening structures, maintaining ease of assembly while preventing vibration-induced damage. The adhesive fills micro-gaps and creates a durable bond that resists wobbling movement and collision forces.
Solution Approach 2:
The patent replaces potential mechanical fixation methods (such as clips, screws, or snap-fits) with chemical bonding using adhesive. This substitution eliminates the need for complex mechanical assembly structures while providing superior vibration resistance. The adhesive bond prevents both wobbling movement and repeated collision damage that would occur with unfixed holding portions.
2Reliability
If the holding portion is fixed using mechanical fastening, then the reliability against vibration is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent replaces mechanical fastening systems with chemical bonding using adhesive. This eliminates the need for screws, clips, or other mechanical fixation components, thereby reducing device complexity while achieving reliable vibration resistance. The adhesive application process is simpler than mechanical assembly and requires no additional fastening parts.
Solution Approach 2:
The patent merges the fixation function with the adhesive material itself, combining the bonding and fixing functions into a single substance. This eliminates the need for separate fixation components and simplifies the overall structure. The adhesive simultaneously provides both structural support and vibration damping, reducing the number of parts required.
3Reliability
If the holding portion is fixed using adhesive, then the damage due to vibration is suppressed, but the manufacturing process becomes more complex
Solution Approach 1:
The adhesive serves as a mediator that can be applied in a simple coating or injection process. Rather than requiring complex multi-step assembly procedures, the adhesive can be applied directly to the holding portion or stator core surface, then cured to create a strong bond. This intermediary substance enables reliable fixation with minimal process complexity.
Solution Approach 2:
The adhesive provides self-aligning and self-fixing properties that eliminate the need for precise mechanical alignment or complex positioning fixtures during assembly. The adhesive flows to fill gaps and bonds surfaces automatically, reducing the skill level and equipment required for manufacturing while ensuring reliable vibration resistance.
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
The solution effectively suppresses damage from vibrations by securely attaching the wiring member to the stator core, preventing wobbling and collision-induced damage, thus ensuring the integrity of the connected portions between conductive wires and coil ends.
Implementation Method 1
the holding portion comprises an adhesion portion adhered and fixed to a fixing target member
Data Source
AI summary
A wiring member for rotating electrical machine that connects coil ends of a stator to electrodes of a terminal block in a rotating electrical machine. The wiring member includes a plurality of conductive wires, and a holding portion for holding the plurality of conductive wires. The holding portion includes an adhesion portion adhered and fixed to a fixing target member. A fixing structure of wiring member for rotating electrical machine is configured that the wiring member for rotating electrical machine including the plurality of conductive wires and connecting coil ends of a stator to electrodes of a terminal block in the rotating electrical machine is fixed to a fixing target member. The rotating electrical machine includes the stator including a stator core and a plurality of coil pieces adhered and fixed to the stator core, and the wiring member for rotating electrical machine.