Elastic-Cushion Button Structure to Prevent Press Sticking
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Solution Overview
Problem
Conventional electronic device buttons with large length differences between ends often result in one end being lifted while the other is stuck, leading to failure and poor operation performance due to non-coaxial alignment with the guide structure.
Innovation Solution
Incorporating an elastic cushion between the button post and button cap, allowing the button cap to move relative to the button post through elastic deformation, preventing the button post from becoming stuck and ensuring effective operation and prolonged service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the button has a large length between two ends, then the button structure is simple and easy to manufacture, but one end of the button is prone to be lifted up and the other end is stuck when pressed, resulting in failure and poor operation performance
Solution Approach 1:
The button is divided into separate components: a button cap and a button post, connected through the guide structure. This segmentation allows the button cap to be pressed independently while the button post moves linearly through the guide, preventing the sticking issue that occurs in monolithic button designs with large lengths.
Solution Approach 2:
The guide structure acts as an intermediary between the button cap and the internal mechanism. It guides the button post to move in a predetermined path, ensuring that the button post remains aligned and does not get stuck, while still allowing the button cap to have a larger pressing area.
2Force
If one end of the button is lifted up, then the button can accommodate larger pressing force, but the other end becomes stuck and fails to reset automatically
Solution Approach 1:
The guide structure provides dynamic guidance for the button post, allowing it to move flexibly along a predetermined path during pressing and reset. This dynamic movement ensures that the button post can accommodate the lifting of one end during pressing while automatically returning to its initial position, maintaining both force accommodation and reset functionality.
3Device complexity
If the button post is pressed directly without guidance, then the structure is simpler, but the button post becomes non-coaxial with the guide structure and gets stuck
Solution Approach 1:
The guide structure is pre-configured with a predetermined path that the button post must follow. This preliminary arrangement ensures that during pressing, the button post automatically stays coaxial with the guide structure, preventing sticking without requiring complex active control mechanisms.
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 elastic cushion connection between the button post and cap prevents sticking issues, ensures effective pressing performance, and extends the button's service life by allowing the button post to remain coaxial with the guide structure even when the button cap is tilted.
Implementation Method 1
the button cap can move relative to the button post due to elastic deformation of the elastic cushion
Data Source
AI summary
An electronic device is provided. The electronic device includes a frame, a signal trigger fixed inside the frame, and a button penetrating the frame. The button includes a button post, an elastic cushion, and a button cap. The button post penetrates the frame to be adjacent to the signal trigger. The elastic cushion is fixed to an end of the button post away from the signal trigger. The button cap is fixedly connected to a side of the elastic cushion away from the button post. The elastic cushion is connected between the button post and the button cap, and the button cap can move relative to the button post due to elastic deformation of the elastic cushion.