Input Device Button with Reed and Micro Switches for Multi-Function Triggering
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Solution Overview
Problem
Conventional input devices in portable products require multiple buttons or keys to trigger various functions, leading to a cumbersome design due to the need for separate keys for each function, limiting versatility and user experience.
Innovation Solution
An input device design incorporating a printed circuit board with a reed switch and a micro switch, where a button can trigger the reed switch via upward and downward movement and the micro switch via rotation, allowing for dual functionality with elastic forces to facilitate both push and rotation actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple buttons or keys are used to trigger various functions, then each function can be triggered reliably, but the device becomes cumbersome and complex
Solution Approach 1:
The single button is designed to perform multiple functions by detecting different operation types (push, rotate, push-rotate combination) and triggering different corresponding switches (reed switch, micro switch) based on the operation detected, allowing one button to replace multiple buttons while maintaining reliable function triggering
2Device complexity
If a single button is used to trigger multiple functions, then device complexity is reduced, but the ability to distinguish different operation types becomes difficult
Solution Approach 1:
The detection function is segmented into multiple independent switches (reed switch for push detection, micro switch for rotation detection) that each specialize in detecting a specific operation type, making it easier to distinguish different operations while maintaining a single button design
Solution Approach 2:
Different types of switches act as intermediaries between the button operations and the control system, with each switch type (reed switch, micro switch) serving as a mediator that detects and signals specific operation types (push, rotate) to the controller
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
Enables a compact and versatile input device that can trigger multiple functions with fewer components, enhancing user interaction by combining movement types to activate different functions, thus improving usability and reducing the need for multiple buttons.
Implementation Method 1
a first switch 40 is a reed switch
Implementation Method 2
a second switch 50 is a micro switch
Implementation Method 3
elastic forces to facilitate both push and rotation actions
Data Source
AI summary
Input device includes a printed circuit board, a first switch, a button and at least one second switch. The first switch is arranged at the printed circuit board, and is electrically connected to the printed circuit board. The at least one second switches are arranged at the printed circuit board surrounding the first switch. The guide body is arranged on the printed circuit board. The button is arranged on the guide body. The button is configured to move towards the circuit board to trigger the first switch. The button is also configured to rotate with respect to the circuit board to trigger the second switch.