Touchpad Pressing Device Pivoting Upper Board
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Solution Overview
Problem
Conventional touchpads are unable to pivot relative to the baseboard when pressed on one side, limiting their functionality and signal generation capabilities.
Innovation Solution
A pressing device comprising a base unit, an upper board unit, and an intermediate unit with linking ribs that connect positioning members, connecting members, and an actuating member, allowing the upper board unit to pivot and trigger a switch when pressed at various positions, enabling signal generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conventional touch pad structure with holder and elastic hooks is used, then the structure is simple and easy to manufacture, but the circuit board cannot pivot when pressed at certain positions, limiting functionality
Solution Approach 1:
The touch pad is divided into three main units: base unit, upper board unit, and intermediate unit. The intermediate unit is further segmented into positioning members, connecting members, and linking ribs, allowing independent movement and pivoting at different pressing positions while maintaining overall structural coherence
Solution Approach 2:
The intermediate unit acts as a mediator between the base unit and upper board unit. It includes connecting members that connect to the circuit board and positioning members that connect to the base unit, enabling the circuit board to pivot relative to the base unit when pressed at various positions while maintaining structural stability
2Reliability
If the circuit board is fixed relative to the baseboard, then the structure is stable, but signal generation is limited when pressing different areas
Solution Approach 1:
The circuit board is designed to dynamically pivot relative to the base unit through the intermediate unit's connecting members and linking ribs. This dynamic capability allows the circuit board to maintain stable electrical connections while enabling pivoting motion at different pressing positions, ensuring reliable signal generation across the entire touch pad surface
3Ease of operation
If the upper board unit is pressed at positions not aligned with the abutment portion, then comprehensive touch input is enabled, but the trigger switch may not be reliably activated
Solution Approach 1:
The actuating member serves as an intermediary between the connecting members and the trigger switch. It translates the pivoting motion from various pressing positions into reliable activation of the trigger switch, ensuring consistent signal generation regardless of where on the touch pad surface the user presses
Solution Approach 2:
The linking ribs are designed to automatically guide the connecting members' movement and ensure proper alignment with the actuating member during pivoting. This self-aligning mechanism ensures reliable switch triggering without requiring additional precision control systems
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 effective signal triggering and stable movement of the upper board unit towards the base unit, ensuring consistent functionality and signal generation across different pressing positions.
Implementation Method 1
an elastic switch 270 disposed on the circuit board 200 to correspond in position to the triggering unit 150
Implementation Method 2
the elastic switch 270 is compressed by the triggering unit 150 to generate a corresponding signal
Data Source
AI summary
A pressing device for a touchpad includes a base unit, an upper board unit, and an intermediate unit. The upper board unit includes a trigger switch aligned with the abutment portion of the base unit. The intermediate unit has a surrounding frame member, two positioning members, two connecting members, and a actuating member that are interconnected by a plurality of linking ribs. When the upper board is pressed at a position above one of the surrounding frame member and the connecting members, one of the connecting members is moved relative to the actuating member by virtue of the linking ribs, and the actuating member provides a force to convert the trigger switch from an initial state to a triggered state.