Rectangular Sensor Fastening Base Plate with Integrated Guide Walls

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Solution Overview

Problem

Existing devices for attaching sensors to carrier parts are either overly complex or excessively costly, particularly when dealing with large sensors, as seen in devices for rectangular and circular sensors.

Innovation Solution

A device featuring long guide walls and shorter stop parts, made of sheet metal with a rectangular base plate and hot-melt adhesive, ensures stable and precise fixation of rectangular sensors with minimal material usage, incorporating angled guide sections and centering portions to prevent misalignment and twisting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a device with bracket parts and pins is used to attach a rectangular sensor to a carrier part, then the sensor can be securely fastened, but the device structure becomes relatively complicated

Engineering Contradiction:
Improvesensor fastening stabilityVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the complex bracket parts and pin mechanisms from the fastening system. Instead, it uses a simplified base plate with integrated guide walls and stop parts that directly guide and secure the sensor in place, removing unnecessary intermediate components while maintaining secure attachment

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Rather than using protruding pins and brackets to hold the sensor, the invention inverts the approach by using recessed guide walls and stop parts formed directly in the base plate to create the positioning and fastening function, simplifying the overall structure

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If a device with guide wall and latching lugs is used to attach a large circular sensor to a carrier part, then the sensor can be secured, but the material expenditure becomes relatively high and costly

Engineering Contradiction:
Improvesensor fastening stabilityVSAvoidmaterial expenditure
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the fastening function into distinct elements: guide walls for positioning, stop parts for limiting movement, and nose sections for engagement. This segmentation allows each element to be optimized for minimal material usage while performing its specific function efficiently

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention applies local quality by making the guide walls long and continuous for stable positioning, while the stop parts are shorter and only where needed for engagement. This localized approach to material distribution ensures stability where required while minimizing material expenditure overall

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

This configuration allows for reliable and cost-effective attachment of large sensors by minimizing material expenditure while maintaining stability and precision, ensuring secure fastening with reduced risk of misalignment and twisting.

Implementation Method 1

a rectangular base plate 2 covered with hot-melt adhesive

Methodology Applied
Scientific EffectHot-melt adhesive: Adhesive

Data Source

PatentEP2046609B1Device for fastening a rectangular sensor to a support part
Publication Date: 2010.09.01 A RAYMOND & CO SCS
  • EP2046609B1 patent drawingFigure 1
  • EP2046609B1 patent drawingFigure 2

AI summary

A device for fastening a rectangular sensor to a support part has a base plate (2) in which a receiving recess (3) is made. Guide walls (6, 7) are integrally formed on mutually opposite edge sides (4, 5) of the receiving recess (3), said guide walls extending between two corner regions (18, 20; 19, 21) of the receiving recess (3), which corner regions end an edge side (4, 5). Furthermore, stop parts (10, 11) which are shorter than the length of the guide walls (6, 7) are integrally formed on the other edge sides (8, 9), in each case in the central region thereof, the stop parts each having at least one stop section (26) oriented at right angles to the base plate (2), wherein the guide sections (22) and the stop sections (26) bear against a wall of the sensor when the sensor is fitted. As a result, even sensors of relatively large dimensions can be fastened to the support part in a stable and accurately fitting manner with relatively little expenditure on material.