Stacked Conductive Ring Motor Wiring for Compact Coil Connections
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Solution Overview
Problem
The increase in the number of coils in motors leads to complex wiring designs and increased space occupation by bus bars, making the motor structure less space-efficient.
Innovation Solution
A motor design featuring a stacked arrangement of conductive rings with internal and external connection terminals positioned radially, allowing for simplified wiring and reduced spatial requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the number of coils is increased, then the motor power is improved, but the wiring design becomes more complex and the space occupied by bus bar increases
Solution Approach 1:
The bus bar is divided into multiple segments, each segment corresponding to a specific coil group. This segmentation allows independent wiring design for each segment, reducing overall wiring complexity while supporting increased coil numbers through modular expansion.
Solution Approach 2:
The bus bar structure transitions from a planar two-dimensional layout to a three-dimensional stacked configuration. Multiple bus bar segments are arranged in different spatial layers, enabling complex coil connections to be realized through vertical stacking rather than horizontal spreading, thus reducing the occupied space and simplifying the wiring design.
2Power
If the number of coils is increased, then the motor power is improved, but the space occupied by bus bar increases
Solution Approach 1:
Multiple bus bar segments are nested within a compact three-dimensional structure, with each segment positioned in a specific spatial layer. This nested arrangement allows the bus bar system to accommodate increased coil numbers without proportionally increasing the overall occupied space, as the segments utilize vertical and radial space efficiency.
Solution Approach 2:
The bus bar configuration moves from a two-dimensional planar arrangement to a three-dimensional stacked structure. By utilizing the vertical dimension and radial positioning, the design accommodates more coils and their corresponding bus bar connections within a compact volume, reducing the space occupied while supporting higher motor power.
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 space-saving and simplifies the motor structure while maintaining efficient electrical connections, reducing manufacturing costs.
Implementation Method 1
Each of the plurality of rings includes external connection terminals electrically connected to an external device, and internal connection terminals electrically connected to the plurality of coils
Data Source
AI summary
There is provided a motor facilitating space-saving in a motor with a simple structure. A motor includes a plurality of rings formed of a conductive material and stacked in a rotation axis direction, and a stator including a plurality of coils. Each of the plurality of rings includes external connection terminals electrically connected to an external device, and internal connection terminals electrically connected to the plurality of coils. In a radial direction, the external connection terminals are disposed at an inner peripheral side with respect to the internal connection terminals.