Concentric Electrode Connection Structure for Dense Threaded Contacts
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Solution Overview
Problem
Conventional electrode connection technologies face challenges in increasing wiring density and are not suitable for non-rotational members that are threadedly engaged and secured to each other, as they require a wider conductor brush and are limited in application to relative rotational movements.
Innovation Solution
An electrode connection structure comprising a first electrode unit with concentrically arranged electrodes and a second electrode unit with axially movable needle-shaped electrodes, allowing for electrical connection at different radial positions, enabling secure and efficient electrical contact between threadedly engaged members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the width of the conductor brush is reduced to increase wiring density, then the pressing force of the leaf spring decreases
Solution Approach 1:
The invention divides the single wide conductor brush into multiple narrow conductor brushes arranged in parallel. Each narrow brush maintains adequate pressing force from the leaf spring, while the collective arrangement achieves the required wiring density. This segmentation resolves the contradiction by allowing multiple thin conductive paths instead of requiring one wide brush.
Solution Approach 2:
Multiple conductor brushes are nested or arranged in parallel within the same spatial envelope, with each brush handled by the same leaf spring pressing force mechanism. This nested arrangement allows the system to achieve high wiring density through multiple parallel conductors while maintaining adequate pressing force on each individual brush.
2Adaptability or versatility
If conventional slip ring technology is used for electrical connection, then it is suitable for relative rotational movement, but it is difficult to apply to members that are not relatively rotated but are secured to each other
Solution Approach 1:
The invention creates a universal electrical connection structure that can accommodate both rotational and non-rotational (threadedly engaged) applications. By using multiple independent conductor brushes that can be pressed against a conductor ring or flat conductor surface, the same basic structure serves multiple functional purposes, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
Instead of using a single wide brush that requires rotational movement context, the invention inverts the approach by using multiple narrow brushes that can work in both rotational and stationary threadedly engaged configurations. This inversion of the brush geometry and arrangement enables broader applicability without increasing fundamental structural complexity.
3Force
If the width of the conductor brush is made larger, then the pressing force increases, but the wiring density decreases
Solution Approach 1:
The invention segments the electrical connection function into multiple narrow conductor brushes, each receiving adequate pressing force from the leaf spring. The collective arrangement of these segmented brushes achieves high wiring density while maintaining sufficient pressing force on each individual brush, resolving the contradiction between force and density.
Solution Approach 2:
Instead of increasing brush width in one dimension, the invention transitions to a multi-dimensional arrangement where multiple narrow brushes are positioned in parallel. This dimensional transition allows the system to achieve high wiring density through increased number of conductors rather than increased width of individual conductors, maintaining pressing force while improving density.
Data Source
AI summary
An electrode connection structure includes a first electrode unit that includes first electrodes formed concentrically, and a second electrode unit that includes a second electrode formed into a needle shape axially movable forward and rearward and is electrically connectable to the first electrode unit, and in the electrode connection structure, the second electrode unit includes a plurality of the second electrodes that is arranged in a circumferential direction and arranged at different radial positions, and the plurality of the second electrodes is electrically connected to the first electrodes arranged at different radial positions, respectively.