Floating Keyboard Panel Structure for Resonance Noise Reduction
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Solution Overview
Problem
Conventional keyboards produce noise due to resonance caused by gaps between the keyboard cover and bottom cover, leading to an uncomfortable typing experience.
Innovation Solution
A floating trampoline-style keyboard structure with a keyboard panel, PCB board, and keyboard bottom case, featuring elastic bodies and limiting screws that allow the panel and board to move relative to each other, reducing resonance noise and enhancing comfort by compressing and rebounding smoothly when keys are pressed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the keyboard cover and bottom cover are fixed together with screws, then the structural stability is improved, but resonance noise is generated due to gaps forming a resonance cavity
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed keyboard structure into a dynamic floating structure. The keyboard panel is decoupled from the bottom cover and allowed to float independently, enabling it to move and absorb impact energy rather than transmitting vibrations. This dynamic approach eliminates resonance noise while maintaining structural integrity through controlled movement rather than rigid fixation.
Solution Approach 2:
The patent introduces an intermediary floating mechanism between the keyboard panel and bottom cover. This intermediate layer acts as a buffer that absorbs impact energy and prevents direct transmission of vibrations to the bottom cover, thereby eliminating the resonance cavity effect while maintaining structural stability through the intermediary's energy-absorbing properties.
2Strength
If the keyboard panel is fixed rigidly to the bottom cover, then the structural strength is improved, but the hand feel comfort deteriorates due to lack of flexibility
Solution Approach 1:
The patent applies dynamics by allowing the keyboard panel to move independently as a floating structure. This movement capability provides flexibility and responsiveness to key presses, enhancing hand feel comfort. The structural strength is maintained through the overall framework design rather than rigid panel fixation, demonstrating that strength and flexibility can coexist through proper structural design.
Solution Approach 2:
The patent changes the structural parameters from fixed to floating, allowing controlled movement within specific ranges. This parameter change enables the keyboard panel to respond dynamically to user input, improving tactile feedback and hand feel comfort while maintaining adequate structural strength through the floating mechanism's design constraints.
3Ease of manufacture
If gaps are left between the PCB board and keyboard covers, then the assembly ease is improved, but resonance noise is generated due to the resonance cavity formation
Solution Approach 1:
The patent introduces the floating keyboard panel as an intermediary element that breaks the resonance cavity path. By positioning the panel to float above the bottom cover with controlled gaps, it prevents sound wave reflection and resonance while maintaining assembly ease. The intermediary structure absorbs impact energy and disrupts the resonance cavity formation without requiring tight tolerances or complex assembly procedures.
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 effectively eliminates resonance noise and improves hand feel comfort by allowing the keyboard panel and PCB board to bounce subtly, reducing echo and enhancing the tactile feedback of key presses.
Implementation Method 1
a first elastic body and a second elastic body are respectively provided between the first gap and the second gap
Data Source
AI summary
A floating trampoline-style keyboard structure, comprising a keyboard panel, a PCB board, and a keyboard base. The keyboard base includes a housing chamber. The PCB board is accommodated within the keyboard base cover and has a first gap with the bottom surface of the keyboard base cover. The keyboard panel is located above the PCB board and closes the opening, and the PCB board and the keyboard panel have a second gap. Several first avoidance holes are provided on the keyboard panel, and several second avoidance holes are provided on the PCB board. A plurality of limit screws are inserted into the first and second avoidance holes in sequence and then locked at the bottom surface of the keyboard base, which restricts the keyboard panel and PCB board from axially disengaging from the keyboard base.