Electrical Plug Pin Layout for Compact 60 A Motor Daisy Chains
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Solution Overview
Problem
Electrical plugs used in coupling multiple motors require high voltage stability and current carrying capability to ensure consistent energy and communication signal transfer, but existing designs often fall short in achieving these requirements, especially in daisy chain configurations.
Innovation Solution
The electrical plug features a pin arrangement with a pair of power transmitting contacts and multiple signal transmitting contacts, where the distance between the power contacts is ≤6.1 mm and between signal contacts is ≤6 mm, allowing for compact and efficient energy and communication signal transfer, with a configuration that maintains high current carrying capability and minimizes voltage drop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between power transmitting contacts and signal transmitting contacts is reduced to achieve compact design, then the device size is reduced, but voltage stability and current carrying capability may deteriorate
Solution Approach 1:
The patent applies local quality by creating distinct contact zones with different functional characteristics. Power transmitting contacts are positioned with specific spacing (≤6.1 mm) to optimize current carrying capability, while signal transmitting contacts are arranged with different spacing (≤6 mm) to minimize interference. This localized optimization of contact arrangement allows compact overall design while maintaining high reliability for both power and signal transmission functions.
2Volume of moving object
If multiple contacts are arranged closely together to reduce plug size, then the device becomes more compact, but current carrying capability and voltage stability may be compromised
Solution Approach 1:
The patent resolves the contradiction by transitioning from a single-dimensional arrangement to a two-dimensional contact layout. Multiple contacts are arranged in a planar configuration with optimized spacing in both horizontal and vertical directions. The power contacts and signal contacts are positioned at specific coordinates within a compact footprint, allowing high current carrying capability (up to 60 A) and voltage stability to be maintained while achieving reduced overall plug dimensions.
3Ease of operation
If the pin arrangement is optimized for compactness, then ease of installation improves, but signal interference between contacts may increase
Solution Approach 1:
The patent applies asymmetry by implementing an unequal spacing arrangement between different contact types. Power transmitting contacts are separated by distances optimized for current carrying (≤6.1 mm), while signal transmitting contacts are positioned with different spacing (≤6 mm) to minimize electromagnetic interference. This asymmetric contact layout breaks the symmetry that would cause uniform interference patterns, thereby reducing signal interference while maintaining compactness and ease of installation.
Data Source
AI summary
An electrical plug has a pin arrangement including a pair of electrical power transmitting contacts separate from one another and a plurality of electrical signal transmitting contacts separate from each other. A pin arrangement transverse axis extends through a central point of the pin arrangement. A distance extending parallel to the pin arrangement transverse axis between a pair of longitudinal axes of the electrical power transmitting contacts is less than or equal to 6.1 mm. A maximum distance extending parallel to the pin arrangement transverse axis between a plurality of longitudinal axes of the electrical signal transmitting contacts that are furthest from each other along a direction parallel to the pin arrangement transverse axis is less than or equal to 6 mm.