Planar Slip Ring Structure for Coaxial Rotation Stability

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Solution Overview

Problem

Current plane slip rings experience issues with coaxial alignment of conductive components during rotation, leading to uneven force distribution and adverse impacts on conductive performance and rotational stability.

Innovation Solution

A plane slip ring design featuring a structural support with a limit ring and radially symmetric extension sections, where conductive members are arranged coplanar and symmetrically, with pins embedded in receiving grooves, and a rotating conductive assembly that includes a limit plate for stable rotation, ensuring balanced forces and electrical connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional plane slip ring structures are used, then the device can rotate and conduct electricity, but the conductive members become misaligned during rotation causing uneven force distribution and reduced stability

Engineering Contradiction:
Improvecoaxial alignment stabilityVSAvoidrotational stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The conductive member is divided into multiple segments (first conductive member and second conductive member) that can move independently within guide grooves. This segmentation allows each segment to self-adjust and maintain alignment during rotation, preventing the misalignment that occurs in conventional single-piece conductive members.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Guide grooves are introduced as intermediary structures that constrain the movement of conductive members. These grooves act as mediators between the rotating components and conductive members, ensuring that the conductive members remain properly aligned during rotation by limiting their movement paths.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If conductive members are arranged to maintain coaxiality, then rotational stability improves, but the structural complexity increases with additional components like guide grooves and limit rings

Engineering Contradiction:
Improverotational stabilityVSAvoidstructural complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The guide grooves are integrated directly into the limit ring structure, combining two functional elements (guidance and limiting) into a single component. This merging reduces the number of separate parts while maintaining the coaxial alignment and rotational stability benefits.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The limit ring serves multiple functions: it provides the structural framework, contains the guide grooves for alignment, and acts as a mounting structure for the conductive members. This multi-functionality reduces overall structural complexity while achieving the desired rotational stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4636961A1Planar slip ring, rotary conductive component, and retractable data line component
Publication Date: 2025.10.22 DONGGUAN CEESING INTELLIGENT DEVICE MFG CO LTD
  • EP4636961A1 patent drawingFigure 1~2
  • EP4636961A1 patent drawingFigure 3~4
  • EP4636961A1 patent drawingFigure 5~6

AI summary

A plane slip ring, a rotating conductive assembly and a telescopic data cable assembly are provided. The plane slip ring includes a structural support and a plurality of conductive members arranged on the structural support. The structural support includes a limit ring and an extension section formed by radially symmetrical extension of the limit ring. The conductive member is arranged on the extension section, including a contact portion formed with contact points, and each contact point of the conductive member is in the same straight line. The symmetrically arranged extension sections can keep the forces at both ends balanced during rotation, thereby reducing the wear of the plane slip ring and improving the service life. The contact portion is convenient for abutting against other components, and the contact points are in the same straight line to ensure the overall coaxiality, making the rotation process more stable.