Axial Connector Layout for Compact Dual-System Motor Drives
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Solution Overview
Problem
Existing drive devices are bulky due to the spatial requirements of connectors and the need for separate installation spaces for external connectors, which complicates assembly and increases the overall size of the device.
Innovation Solution
The drive device incorporates a motor with winding sets in two systems, a coaxial control portion, and a connector arrangement where the first and second system connectors are aligned in the axial direction, with protrusions orthogonal to their arrangement, allowing for closer placement and reduced space usage, and featuring a rib for connection between them to enhance assembly and reduce noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If connectors are arranged separately with sufficient installation space, then assembly is simplified, but the overall device size increases
Solution Approach 1:
The patent combines multiple connectors (first system connector and second system connector) into a single integrated connector portion, allowing them to share common installation space and structural support, thereby reducing the overall device volume while maintaining assembly simplicity
Solution Approach 2:
The connectors are arranged in a nested or closely packed configuration where the first system connector and second system connector are positioned adjacent to each other within the same connector portion, maximizing space utilization and minimizing the external dimensions of the device
2Volume of moving object
If connectors are placed close together, then device size is reduced, but working space for external connectors becomes insufficient
Solution Approach 1:
The patent utilizes the axial direction (longitudinal dimension) of the motor to arrange connectors, positioning them along the axial line rather than spreading them radially or in planar directions, thereby maintaining compact cross-sectional dimensions while providing adequate axial working space
3Adaptability or versatility
If power supply terminals are distributed, then connection flexibility is improved, but noise interference increases
Solution Approach 1:
The patent consolidates power supply terminals into a centralized arrangement within the connector portion, grouping them together to minimize electromagnetic interference and noise, while the connector design maintains connection flexibility through standardized interfaces
Data Source
AI summary
A connector portion includes a first system connector that holds a first system terminal and a second system connector that holds a second system terminal. An insertion/removal direction of the first system connector and the second system connector are the same as an axial direction of a motor. The first system connector and the second system connector are arranged close to each other such that the long length directions of the frontages of the connectors are aligned, and that the interval between the connectors is smaller than the width in the short length direction of both connectors. The connectors have protrusions that project in a direction orthogonal to the direction in which the connectors are arranged.