Segmented Slip Ring for High-Frequency Signal Transmission

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Solution Overview

Problem

Existing slip ring units are not optimized for efficient transmission of high-frequency currents and signals, and their production is not economical.

Innovation Solution

A slip ring unit with a dielectric carrier body and conductor elements arranged in an annular, closed form, where conductor elements are fixed on shoulders of the carrier bodies at an axial offset, allowing for electrical connection and using precious metals or their alloys for enhanced conductivity, along with a brush unit for reliable contact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional slip ring units with conductor wires fixed on a cylindrical carrier body are used, then the structure is simple and production is relatively easy, but the transmission of high-frequency currents and signals is not efficient due to high electrical capacity

Engineering Contradiction:

Improvetransmission efficiency of high-frequency signalsVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The slip ring is divided into multiple segments (first and second dielectric carrier bodies with conductor elements) arranged axially offset from each other. This segmentation reduces the overall electrical capacity while maintaining structural integrity and enabling efficient high-frequency signal transmission.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conductor elements are arranged in an axial dimension rather than purely radial, with carrier bodies offset along the axial direction. This dimensional change creates a more compact structure with reduced electrical capacity, improving high-frequency transmission efficiency.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If conductor elements are arranged concentrically at axial distance with axial offset, then the electrical capacity is reduced for better high-frequency transmission, but the manufacturing precision requirements increase

Engineering Contradiction:

Improveelectrical capacity reductionVSAvoidaxial positioning precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

Shoulders are pre-formed on the dielectric carrier bodies at specific axial positions before conductor element installation. This preliminary action establishes precise axial positioning references, reducing the difficulty of achieving required manufacturing precision during assembly.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The shoulders on the carrier bodies serve as self-aligning features that automatically position the conductor elements at the correct axial offsets during assembly, reducing the need for high-precision external positioning equipment and operations.

Inventive Principle:

Principle #25Self-service

3Reliability

If precious metals or their alloys are used for conductor elements, then the conductivity and reliability are enhanced, but the production cost increases

Engineering Contradiction:

ImproveconductivityVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Precious metals or their alloys are used specifically for the conductor elements where high conductivity is critical, while other components use standard materials. This localized application of premium materials optimizes conductivity where needed while controlling overall production costs.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient and economical transmission of high-frequency signals with reduced electrical capacity and reliable contact, suitable for high-frequency applications.

Implementation Method 1

the brushes of the brush units are in sliding contact with the shell sides of the rotating slip rings

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

a first dielectric (or electrically insulating) carrier body and a second dielectric carrier body

Methodology Applied

Scientific EffectElectrical insulation: Dielectric

Data Source

PatentUS11165210B2Slip ring and slip ring unit having a slip ring

Publication Date: 2021.11.02 LTN SERVOTECHN

AI summary

A slip ring includes a first dielectric carrier body and a second dielectric carrier body, each carrier body having at least one shoulder extending circumferentially along a circle line. In addition, the slip ring includes conductor elements, which have an annular and closed configuration with respect to an axis, at least one conductor element, which is fixed in place on the shoulder of the first dielectric carrier body, and at least one conductor element, which is fixed in place on the shoulder of the second dielectric carrier body. The first dielectric carrier body is arranged at an offset from the second dielectric carrier body in the direction of the axis, so that the shoulder having the at least one conductor element of the first dielectric carrier body and the shoulder having the at least one conductor element of the second dielectric carrier body are located axially across from each other.