Low-Profile Switching Interface With Tilt Position Sensing

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Solution Overview

Problem

Existing electrical switching devices are not simple enough in design, have a high overall height, and are complex to produce, making them inefficient and unreliable as input devices, especially in work systems requiring robust and efficient task fulfillment.

Innovation Solution

A compact electrical switching device with a plate-shaped base body and actuating part, featuring an elastic connecting device and sensors for detecting position changes, allowing for tilting or pivoting movements, and optionally incorporating a display for user input and output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If existing electrical switching devices are used, then switching function is provided, but the overall height is high and the design is complex

Engineering Contradiction:
Improveoverall heightVSAvoiddesign complexity
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The switching device is divided into functionally independent modules: a base body containing evaluation electronics, a separate actuating part with display, and a connecting device for signal transmission. This segmentation allows each module to be optimized independently, reducing overall height while maintaining functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from traditional vertical stacking to a flattened, planar configuration where the actuating part and base body are connected through a low-profile interface. The connecting device enables signal transmission in a horizontal plane rather than requiring vertical space, achieving low overall height without sacrificing functional complexity.

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

2Ease of manufacture

If existing electrical switching devices are used, then switching function is provided, but production is complex

Engineering Contradiction:
Improveproduction simplicityVSAvoiddevice complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

By segmenting the device into base body, actuating part, and connecting device, each component can be manufactured using standardized processes and then assembled. The base body with integrated electronics can be produced separately from the actuating part with display, simplifying production workflows and reducing manufacturing complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting device serves multiple functions: mechanical connection between base body and actuating part, electrical signal transmission, and structural support. This multi-functionality reduces the number of separate components needed, simplifying both device design and production processes.

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

3Strength

If the actuating part is made rigid for stability, then structural strength is improved, but responsiveness to tilting movements decreases

Engineering Contradiction:
Improvestructural strengthVSAvoidresponse speed
Core Design Contradiction:
StrengthVSSpeed

Solution Approach 1:

The actuating part employs local quality differentiation: the display region and connection areas maintain rigidity for structural strength and signal transmission, while the actuation surface is designed with appropriate compliance to respond quickly to user input and tilting movements. This localized variation in mechanical properties optimizes both strength and responsiveness.

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

The solution provides a robust, reliable, and efficient input device with a low-profile design that can be easily operated, enhancing task fulfillment in work systems by enabling precise position detection and intuitive user interaction.

Implementation Method 1

a connecting device with at least one bonding layer made of an elastic material

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

at least one sensor, which is located between the base body and the actuating part, so that with each sensor a position of a region of the second surface located on it can be detected in the thickness direction

Methodology Applied
Scientific EffectPosition detection:

Data Source

PatentEP3136602B1Switching device, and use of the switching device, working method and working system
Publication Date: 2020.01.15 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • EP3136602B1 patent drawingFigure 1~3
  • EP3136602B1 patent drawingFigure 4
  • EP3136602B1 patent drawingFigure 5~8

AI summary

Switching device (1) which can be operated from an actuating side (S1), the switching device (1) having: - a plate-shaped base body (10), - a plate-shaped actuating part (20), - one between the base body (10) and the actuating part (20) located connecting device (30) made of an elastic material, - at least one sensor (41, 42, 43, 44) located between the base body (10) and the actuating part (20) and in the thickness direction (Z) seen are located to the side of the connecting device (30), so that each sensor (41, 42, 43, 44) can detect a position of a region of the second surface located on it in the thickness direction (Z), and use of the switching device (1) and methods of completing a work task of a participant in a work system (S) and work system (S).