Motor Busbar Axial Integration for Compact Stator Design
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Solution Overview
Problem
Existing motor designs suffer from reduced output efficiency due to the size of the busbar, which does not contribute to the motor's overall efficiency and increases the motor's size without enhancing its performance.
Innovation Solution
A transducer design that includes a stator with a coil and a busbar connected via a projection terminal, where the busbar is aligned axially with the stator, allowing for a reduced axial size without compromising output efficiency by integrating the busbar's size into the overall structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the busbar is designed with a separate structure connected to the stator, then the electrical connection is ensured, but the axial size of the motor increases
Solution Approach 1:
The busbar is integrated into the stator structure by making the stator yoke and busbar as a single integrated component. This merging eliminates the need for a separate busbar structure while maintaining the electrical connection function, thereby reducing the axial size of the motor without compromising electrical reliability
Solution Approach 2:
The stator yoke is designed to serve dual functions: as the magnetic circuit component and as the busbar for electrical connection. This multi-functionality approach allows the same structure to fulfill both magnetic and electrical roles, eliminating redundant components and reducing overall axial dimensions
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 design achieves a smaller motor size without decreasing output efficiency by optimizing the busbar's configuration to align with the stator, reducing the axial dimension and maintaining performance.
Implementation Method 1
a motor configured to generate a rotational force by controlling the phase of a current flowing through a coil that is wound around a stator
Data Source
AI summary
A motor that includes a plurality of stator members and a busbar member. The busbar member connects to coil end portions of a predetermined stator member of the plurality of stator members. The busbar member may comprise a first busbar, a second busbar, and a third busbar. The busbars may include an annular-shaped base portion, and a connection terminal connected to an outer circumference of the base portion and connected to the coil end portions. The busbar member and the plurality of stator members may be aligned in an axial direction. Each connection terminal of the busbars may have a shape projecting toward the stator member relative to the base portion.