Curved Deformable Contact Switch for Reliable Signal Registration
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Solution Overview
Problem
Existing push button switches with curved deformable contact elements face issues with erroneous continued registration of button press after release, necessitating improved reliability and safety features.
Innovation Solution
A push button switch design featuring a deformable contact element with a convex and concave surface, where terminal points are arranged to switch between normal open and normal closed states upon activation, ensuring reliable electrical connections and preventing false registrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal points are arranged to provide both normally closed and normally open functions, then safety is improved, but device complexity increases
Solution Approach 1:
The deformable contact element serves multiple functions simultaneously: it acts as both a normally closed contact (between first and second contact points) and a normally open contact (between first and third contact points). This multi-functionality is achieved within a single contact element structure, providing enhanced safety without requiring separate switch mechanisms
Solution Approach 2:
The patent merges the functions of normally closed and normally open switches into a single deformable contact element structure. By positioning terminal points strategically around the deformable contact element, both switch types are combined in one component, reducing overall system complexity while maintaining safety benefits
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 switch provides enhanced reliability and safety by ensuring accurate registration of button presses and preventing false signals, addressing the issue of erroneous continued registration.
Implementation Method 1
a deformable contact element having a first convex surface and an opposite second concave surface
Data Source
AI summary
The present invention relates to a push button switch 5 comprising a curved deformable contact element 4. The push button switch 5 comprises at least one first terminal point 1, at least one second terminal point 2, and at least one third terminal point 3. The deformable contact element 4 is switched between a first and a second state. In the first state the deformable contact element 4 connects the at least one first terminal point 1 with the at least one second terminal point 2 whereas there is neither contact between the at least one third terminal point 3 and the at least one first terminal point 1 nor between the at least one third terminal point 3 and the at least one second terminal point 2. In the second state the deformable contact element 4 connects the at least one first terminal point with the at least one third terminal point 3, whereas there is neither contact between the at least one second terminal point 2 and the at least one first terminal point 1 nor between the at least one second terminal point 2 and the at 1 least one third terminal point 3. This implies that the push button switch 5 is designed to be both normally closed and normally open.