Rotary Slip Ring With Nested Transmission Units

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Solution Overview

Problem

Traditional rotary electrical slip ring assemblies are bulky and heavy due to the need for numerous sliding contacts to transmit both high and low intensity currents, making them incompatible with certain applications.

Innovation Solution

A compact rotary slip ring assembly design featuring coaxial rotors and stators with nested electrical energy transmission units, where high-power currents are transmitted through one unit and control signals through another, utilizing insulated and conductive rings with brushes, allowing for reduced size and weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional slip ring assemblies are provided with numerous sliding contacts to transmit both high and low intensity currents, then the electrical transmission capability is improved, but the dimensions (height) and weight of the rotor and stator increase significantly

Engineering Contradiction:
Improveelectrical transmission capabilityVSAvoidstator weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of stationary object

Solution Approach 1:

The patent implements nested electrical energy transmission units where a second transmission unit is housed within a chamber of the first rotor, which itself is associated with a first stator. This nested configuration allows multiple transmission functions to be integrated in a compact arrangement, reducing the overall height and weight while maintaining the capability to transmit both high and low intensity currents through separate rotor-stator pairs.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If traditional slip ring assemblies are provided with numerous sliding contacts to transmit both high and low intensity currents, then the electrical transmission capability is improved, but the dimensions (height) of the rotor and stator increase significantly

Engineering Contradiction:
Improveelectrical transmission capabilityVSAvoidstator height
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent implements nested electrical energy transmission units where a second transmission unit is housed within a chamber of the first rotor, which itself is associated with a first stator. This nested configuration allows multiple transmission functions to be integrated in a compact arrangement, reducing the overall height and weight while maintaining the capability to transmit both high and low intensity currents through separate rotor-stator pairs.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent transitions from a conventional side-by-side or stacked arrangement of transmission units to a nested configuration where one transmission unit is positioned within the volume of another. This spatial reorganization in three-dimensional space reduces the axial height requirement while preserving all electrical transmission pathways.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If traditional slip ring assemblies are provided with numerous sliding contacts to transmit both high and low intensity currents, then the electrical transmission capability is improved, but the overall size of the assembly increases making it incompatible with certain applications

Engineering Contradiction:
Improveelectrical transmission capabilityVSAvoidrotor volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent implements nested electrical energy transmission units where a second transmission unit is housed within a chamber of the first rotor, which itself is associated with a first stator. This nested configuration allows multiple transmission functions to be integrated in a compact arrangement, reducing the overall height and weight while maintaining the capability to transmit both high and low intensity currents through separate rotor-stator pairs.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

The design achieves a significantly smaller and lighter rotary slip ring assembly capable of transmitting high currents while maintaining operational efficiency for both power and signal transmission, accommodating various current intensities with adjustable materials and dimensions.

Implementation Method 1

first electrical contacts (27) each connected to first brushes (29) slidable on the first conducting rings (25)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2019460B1Rotary electrical slip ring assembly
Publication Date: 2011.10.26 RAVIOLI
  • EP2019460B1 patent drawingFigure 1

AI summary

The rotary electrical slip ring assembly (1) comprises a first electrical energy transmission unit (2) defined by a first rotor (3) slidably associated with a first stator (4). The slip ring assembly (1) also comprises a second electrical energy transmission unit (6) defined by a second rotor associated with a second stator. The second electrical energy transmission unit (6) is housed in a chamber of the first rotor (3).