Friction Lining Wear Sensor Bundling Mechanism

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Solution Overview

Problem

Existing friction lining wear sensors require separate sensor bodies for each geometry, leading to high production costs and complex pre-assembly processes, and existing solutions involve costly and error-prone manual steps in embedding conductor loops.

Innovation Solution

A sensor body with a recess that securely fixes a bundling element, which combines incoming and outgoing lines into a pair of conductors, using a force-fitting or form-fitting mechanism, eliminating the need for a separate connection piece and simplifying assembly by using elastic or shape-fitting methods to maintain the conductor loop in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate sensor body with socket is created for each individual geometry, then the conductor loop can be properly guided and fixed, but production costs increase considerably

Engineering Contradiction:
Improveconductor loop fixationVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies universality by creating a single standardized sensor body design that can accommodate multiple geometries through the use of a flexible conduit system. The socket and guide channels are designed with universal dimensions that work across different sensor geometries, eliminating the need to create separate sensor bodies for each geometry while maintaining proper conductor loop fixation.

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

Solution Approach 2:

The patent segments the fixation system into separate functional elements: a standardized sensor body with universal socket and guide channels, a flexible conduit for routing, and clamping mechanisms. This segmentation allows the conductor loop to be properly guided and fixed without requiring geometry-specific sensor bodies, reducing production costs while maintaining reliability.

Inventive Principle:
Principle #1Segmentation

2Productivity

If pre-assembly is performed with multiple sensors connected to one another, then assembly efficiency improves, but the process becomes complex and error-prone

Engineering Contradiction:
Improveassembly efficiencyVSAvoidpre-assembly complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The standardized sensor body design with universal socket and guide channel dimensions enables pre-assembled sensor modules to be interconnected using the same connection procedures. This universality simplifies pre-assembly processes by eliminating the need for different assembly procedures for different geometries, reducing complexity and errors while improving assembly efficiency.

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

3Ease of manufacture

If the socket is omitted to simplify assembly, then production complexity decreases, but the conductor loop cannot be pulled tight enough to remain fixed under vibrations

Engineering Contradiction:
Improveassembly simplicityVSAvoidconductor loop fixation under vibration
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent uses a flexible conduit (hose or tube) to route and protect the conductor loop between the sensor body and the contacting device. This flexible element allows the conductor loop to be pulled tight and secured without requiring a complex socket structure, maintaining fixation reliability under vibration while keeping the overall assembly simple.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent introduces a flexible conduit as an intermediary element between the sensor body and the contacting device. This mediator allows the conductor loop to be properly tensioned and protected without requiring a bulky socket, achieving both assembly simplicity and reliable fixation under vibrational conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2696093B1Friction lining wear sensor
Publication Date: 2014.09.17 BOWA ELECTRONICS
  • EP2696093B1 patent drawingFigure 1~2
  • EP2696093B1 patent drawingFigure 3~4

AI summary

The sensor has a sensor body (10) wrapped around a conductor loop (14) by a circumferential groove, which is formed in the sensor body. An inlet line (141) and an outlet line (142) of the conductor loop are bundled at an end of the sensor body into a pair of conductors (143) and fixed at the sensor body. An annular bundle element (16) connecting the inlet and outlet lines to the pair of conductors is fixed in a corresponding recess (22) of the sensor body in a form-fit and/or force-fit manner. The bundle element is formed in an S-, X- or E-shape.