Slip Ring Assembly With Elastic Contacts for Stable Signal Transfer
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Solution Overview
Problem
Existing slip rings for transmitting electric signals face challenges in minimizing signal degradation due to electromagnetic interference and parasitic impedance, with manual assembly complicating repeatability and increasing production costs.
Innovation Solution
A slip ring design featuring elastically deformable electric contacts that eliminate the need for soldering by allowing conductive rings to be arranged around a support body, minimizing electromagnetic interference and facilitating automated assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple separate processes are used to form insulating films and conductive patterns, then manufacturing flexibility is maintained, but manufacturing complexity and time increase
Solution Approach 1:
The patent combines the formation of insulating films and conductive patterns into a single coating process. The slurry contains both insulating material particles and conductive material particles, allowing both components to be deposited simultaneously on the substrate in one step, eliminating the need for separate coating processes for each layer type.
Solution Approach 2:
The coating slurry serves multiple functions simultaneously: it provides the insulating matrix material, incorporates conductive fillers for electrical pathways, and forms the structural framework of the electronic component. This multi-functional slurry replaces what would traditionally require multiple specialized coating processes.
2Manufacturing precision
If conventional coating methods are used, then existing equipment can be utilized, but coating uniformity and quality are insufficient
Solution Approach 1:
The patent introduces a binder as an intermediary substance that holds both insulating particles and conductive particles together in a stable suspension. The binder ensures uniform distribution of all components throughout the slurry and facilitates even coating deposition, preventing particle aggregation and ensuring consistent film formation.
Solution Approach 2:
The invention changes the physical and chemical parameters of the coating slurry, including particle size distribution, viscosity, and compositional ratios of insulating to conductive materials. These parameter optimizations enable conventional coating equipment to achieve superior coating uniformity and quality that would otherwise require complex specialized equipment.
3Productivity
If insulating and conductive materials are mixed in the same slurry, then process steps are reduced, but material compatibility challenges arise
Solution Approach 1:
The patent applies local quality by assigning different functional roles to different components within the same slurry system. Insulating particles provide the dielectric matrix in specific regions, while conductive particles create electrical pathways in other regions. The binder locally adapts to hold different particle types together, ensuring material compatibility despite their contrasting electrical properties.
Data Source
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AI summary
A slip ring (1) comprises a first support body (30); a first electric interface (50) associated with said first support body (30) and configured to be electrically connected to a first electric component; a plurality of conductive rings (80) fixedly mounted on said first support body (30); a plurality of first electric tracks (60) in 5 electric connection with said first electric interface (50) and fixedly mounted on said first support body (30); a plurality of electric contacts (70), each electric contact (70) being electrically connected to a respective first electric track (60) and being elastically deformed as it abuts against the respective conductive ring (80); a second support body (90) rotatably coupled to said first support body (30) 0 about an axial rotation axis (R); a second electric interface (110) associated with said second support body (90) and configured to be electrically connected to a second electric component; a plurality of electric brushes (130) fixedly mounted to said second support body (90) and electrically connected to said second electric interface (110), wherein each brush (130) is arranged in sliding contact 5 with a respective conductive ring (80).