Dual-Conductive Key Switch with Sequential Mechanical and Inductive Triggers
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Solution Overview
Problem
Current key switches can only conduct once when pressed, failing to meet the increasing demand for dual-conductive functionality that enhances user experience, particularly in gaming applications.
Innovation Solution
A combined dual-conductive key switch design incorporating a mechanical-conducting component and an inductive switch, where a conduction trigger block and a magnet are arranged on the conductive core to trigger distinct conduction strokes, allowing for sequential conduction of both components with a single press, thereby achieving dual-conductive functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional single-conductive key switch is used, then the structure is simple, but the functionality is limited to single conduction only
Solution Approach 1:
The patent combines a mechanical-conducting component and an inductive switch into a single key switch assembly. The mechanical component provides first conduction through direct contact, while the inductive switch provides second conduction through magnetic field detection. Both conduction paths are integrated within the same switch structure, enabling dual-conductive functionality without requiring separate switches.
Solution Approach 2:
The key switch is designed to perform multiple functions: mechanical conduction for primary signal detection, inductive conduction for secondary signal detection, and sequential conduction for enhanced functionality. The same physical switch assembly serves as both a mechanical switch and an inductive sensor, achieving multi-functionality in a single device.
2Manufacturing precision
If a dual-conductive key switch with separate conduction strokes is designed, then the conduction precision is improved, but the device complexity increases
Solution Approach 1:
The conduction process is segmented into two distinct strokes: first conduction stroke for the mechanical-conducting component and second conduction stroke for the inductive switch. The conduction trigger block is divided into a first conduction trigger surface and a second conduction trigger surface, each responsible for triggering a specific conduction event at different stages of the pressing motion.
Solution Approach 2:
The mechanical-conducting component conducts first as a preliminary action during the first conduction stroke, before the inductive switch conducts during the second conduction stroke. This sequential arrangement ensures that the mechanical conduction occurs at a predetermined stage of the pressing motion, providing precise control over the conduction sequence.
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 design enables the key switch to perform two actions with a single press, providing enhanced functionality and user experience by ensuring the mechanical-conducting and inductive switches conduct in sequence, offering improved performance over traditional single-conductive switches.
Implementation Method 1
an inductive switch which are electrically connected to a PCB respectively; and a conduction trigger block corresponding to the mechanical-conducting component and a magnet corresponding to the inductive switch are respectively arranged on the conductive core
Data Source
AI summary
A combined dual-conductive key switch including a base, a cover arranged above the base, a conductive core, a mechanical-conducting component and an inductive switch which are electrically connected to a PCB respectively; and a conduction trigger block corresponding to the mechanical-conducting component and a magnet corresponding to the inductive switch are respectively arranged on the conductive core; and the conduction trigger block triggers a conduction stroke of conducting the mechanical-conducting component, which is different from a conduction stroke of conducting the inductive switch triggered by the magnet. The combined dual-conductive key switch is provided for achieving dual-conductive functions of pressing once and performing two actions for a product.