Cable Switch With Insulating Spacer Prevents Bending Activation
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Solution Overview
Problem
Conventional cable switches with conductive rubber tend to malfunction by unintended activation when bent or not pressed, leading to unreliable operation.
Innovation Solution
A cable switch design featuring a band-shaped first base with an inner conductor and a second base with corrugated positive and negative electrodes, separated by a spacer with rectangular windows, which prevents electrical conduction during bending but allows easy conduction through finger pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conductive rubber is used in the switch, then the switch can be easily activated by pressing, but the switch may malfunction by unintended activation when bent
Solution Approach 1:
The patent removes conductive rubber from the switch structure entirely. Instead, it uses a capacitor-based design where two conductive plates are separated by an insulating layer, eliminating the material that causes unintended activation during bending while maintaining press-activation functionality.
Solution Approach 2:
The patent introduces an insulating layer as an intermediary between the two conductive plates. This insulating layer prevents electrical conduction during bending while allowing the capacitor to be activated when pressed, thereby resolving the contradiction between ease of operation and reliability.
2Adaptability or versatility
If the switch is bent, then the cable remains flexible, but electrical conduction may be unintentionally produced
Solution Approach 1:
The patent eliminates conductive rubber from the switch structure, removing the source of unintended conduction during bending. The new design uses separated conductive plates with an insulating layer between them, preventing harmful electrical conduction while maintaining cable flexibility.
Solution Approach 2:
The patent employs a simple insulating layer material that provides reliable electrical isolation without requiring complex or expensive materials. This straightforward approach effectively prevents unintended conduction during bending while keeping the cable flexible and maintainable.
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 effectively prevents unintended activation during bending and ensures reliable operation by isolating electrodes with a spacer, maintaining conduction only when pressed, thus enhancing user experience.
Implementation Method 1
a gap being formed between the positive electrode and the negative electrode for separating and insulating the positive electrode and the negative electrode from each other
Data Source
AI summary
A cable switch comprising a first base member of a band shape provided with a conductor on an inner surface and a second base member facing the first base member, and including a flat positive electrode and a negative electrode, the positive electrode being provided on one side of an inner surface thereof and the negative electrode being provided on another side of the inner surface, a gap being formed between the positive electrode and the negative electrode for separating and insulating the positive electrode and the negative electrode from each other.