Motor Holder Through-Hole Segmentation for Assembly
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Solution Overview
Problem
The assembly process of electromechanically integrated motors is complicated due to the complexity of connecting electronic components and circuit boards with motor wires, leading to difficulties in simplification and ease of assembly.
Innovation Solution
The design includes a rotor with a stator and a holder with through-holes arranged within a 180-degree center angle, allowing for concentrated connection of circuit boards and coil wires, and a heat sink that enhances heat dissipation by widening the power region, facilitating easier assembly and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the through-holes are distributed over the entire circumference of the holder, then the connection between circuit board and coil wire is more flexible, but the assembly process becomes more complicated and time-consuming
Solution Approach 1:
The through-holes are segmented into two distinct groups: a first plurality of through-holes located within a 180-degree center angle region for coil wire connections, and a second plurality of through-holes located in the remaining region for power supply connections. This segmentation concentrates connection points in specific regions, making the assembly process more efficient while maintaining connection flexibility.
Solution Approach 2:
Different regions of the holder are assigned different functions: the first region (within 180 degrees) is optimized for coil wire connections, while the second region is optimized for power supply connections. This local differentiation allows each region to be optimized for its specific purpose, improving overall assembly efficiency.
2Productivity
If the through-holes are concentrated in a narrow region (≤180 degrees), then the assembly process is simplified, but the heat dissipation area for the circuit board is reduced
Solution Approach 1:
The holder is segmented into functional regions: the first region (≤180 degrees) concentrates through-holes for simplified assembly, while the second region provides additional space for heat dissipation and power supply mounting. This segmentation resolves the contradiction by separating the connection function from the heat dissipation function in different spatial zones.
Solution Approach 2:
The solution moves from a two-dimensional circular distribution to a three-dimensional spatial arrangement where through-holes are concentrated in one angular region while leaving other regions available for heat dissipation structures and power supply components, effectively utilizing the third dimension (axial direction) for heat management.
3Ease of manufacture
If the circuit board is designed with separate first and second regions for power and control, then the circuit design is simplified, but the overall structure becomes more complex
Solution Approach 1:
The holder serves multiple functions: it provides structural support, acts as a heat sink, and serves as the mounting platform for both the circuit board and power supply. The first and second regions on the holder correspond to the power and control regions on the circuit board, creating a unified multi-functional structure that simplifies the overall system rather than increasing complexity.
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
This design simplifies the assembly process by concentrating the connection of circuit boards and coil wires within a narrower region, enhances heat dissipation, and prevents circuit board deformation during assembly, making the motor easier to assemble and more efficient.
Implementation Method 1
a heat sink that enhances heat dissipation by widening the power region
Implementation Method 2
a heat sink that enhances heat dissipation
Data Source
AI summary
A motor includes a rotor including a shaft extending axially, a stator surrounding a radial outside of the rotor and including a coil defined by a wound coil wire, a holder disposed on an axially upper side of the stator, the coil wire being inserted into the holder, the holder including through-holes extending axially, and a circuit board disposed on the axially upper side of the holder, an electronic component being mounted on the circuit board. When the holder is viewed from the axially upper side, the through-holes are located in a region where a center angle (α) centered on the shaft is less than or equal to 180 degrees.