Motor Busbar Guide System for Vibration Stability
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Solution Overview
Problem
In motors, the busbar's movement due to vibration causes wear or cutting of coil coatings, leading to connection issues, and existing solutions like impregnation or molding increase manufacturing and management costs.
Innovation Solution
The motor design incorporates a guide system between insulators and a busbar, with extension parts and guides that secure the busbar in place, preventing movement and enhancing fixing force without additional processes or components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If impregnation or molding is used to inhibit busbar movement, then busbar stability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The invention extracts the busbar from the complex impregnation/molding process by providing a separate guiding structure (guide rails or guide slots) that physically constrains the busbar position independently of the coil winding process, thereby simplifying manufacturing while maintaining stability
Solution Approach 2:
The invention introduces an intermediary guiding structure (guide rails or guide slots formed on the stator yoke) that acts as a mediator between the busbar and the stator, providing positional constraint without requiring direct integration into the coil winding or impregnation process
2Reliability
If the busbar is secured with additional components or processes, then connection reliability is improved, but manufacturing cost increases
Solution Approach 1:
The invention merges the guiding function into the existing stator structure by forming guide rails or guide slots directly on the stator yoke, combining multiple functions (structural support, positioning, and guidance) into a single integrated component, thereby improving reliability without adding separate parts or processes
Solution Approach 2:
The stator yoke serves multiple functions: it provides the magnetic circuit path, structural support for the coils, and incorporates guide rails or guide slots for busbar positioning, making the structure multi-functional and eliminating the need for additional dedicated guiding components
Data Source
AI summary
Provided is a motor which includes a housing and a stator disposed in the housing and a rotor disposed in the stator and a busbar disposed on one side of the stator, wherein the stator includes a stator core and a coil wound around the stator core and an insulator disposed between the stator core and the coil, the insulator includes a first insulator and a second insulator wherein the busbar includes a guide, wherein the guide is disposed between a first insulator and a second insulator.