Scissor Keyboard Buffer Structure for Low-Noise Key Presses
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Solution Overview
Problem
Users have increasing expectations for key silence in keyboards, as existing keyboards produce significant impact noise during key presses, leading to a poor user experience.
Innovation Solution
A keyboard design featuring a first buffer structure on the key cap that interacts with a lifting/lowering assembly to absorb collision impacts, reducing noise and preventing large impact noise by buffering the collision between the key cap and the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional keyboard structure without buffer structures is used, then the keyboard structure is simple, but significant impact noise is produced during key presses
Solution Approach 1:
The patent applies beforehand cushioning by introducing buffer structures (first buffer structure on the key cap inner surface and second buffer structure on the lifting/lowering assembly) that are pre-positioned to absorb collision impacts before they occur. These buffer structures deform elastically during key pressing to cushion the impact between the key cap and the lifting/lowering assembly, thereby reducing impact noise without significantly complicating the overall keyboard structure.
Solution Approach 2:
The patent uses buffer structures as intermediary elements between the key cap and the lifting/lowering assembly. The first buffer structure on the key cap inner surface and the second buffer structure on the assembly act as mediators that absorb and reduce the collision impact, preventing direct hard contact between the key cap and the assembly, thus reducing impact noise while maintaining structural simplicity.
2Object-affected harmful factors
If buffer structures are added to reduce impact noise, then key tapping noise is reduced, but the keyboard structure becomes more complex
Solution Approach 1:
The buffer structures are pre-positioned on the key cap inner surface and lifting/lowering assembly to provide beforehand cushioning. The first buffer structure is located at the position where the lifting/lowering assembly contacts the key cap, and the second buffer structure is on the assembly itself. These structures deform elastically during key pressing to cushion the impact before it causes significant noise, effectively reducing key tapping noise while adding minimal structural complexity.
Solution Approach 2:
The buffer structures are implemented as flexible elastic layers or thin film structures that can deform elastically during key pressing. The first buffer structure on the key cap inner surface and the second buffer structure on the lifting/lowering assembly are designed as flexible elements that absorb impact energy through elastic deformation, reducing key tapping noise without requiring complex mechanical structures.
3Object-affected harmful factors
If the lifting/lowering assembly directly contacts the key cap, then the structure is simple, but large impact noise is caused during key pressing
Solution Approach 1:
The patent introduces buffer structures as intermediary elements between the lifting/lowering assembly and the key cap. The first buffer structure on the key cap inner surface and the second buffer structure on the assembly act as mediators that absorb and reduce the collision impact, preventing direct hard contact between the assembly and the key cap, thus reducing large impact noise while maintaining relatively simple structural design.
Solution Approach 2:
The buffer structures are implemented as flexible elastic layers that can deform during key pressing. The first buffer structure on the key cap inner surface and the second buffer structure on the lifting/lowering assembly are designed as flexible elements that absorb impact energy through elastic deformation, reducing large impact noise without requiring complex mechanical structures or additional components.
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 buffer structure effectively reduces key tapping noise, enhancing user experience by minimizing impact noise and improving the overall silence of the keyboard operation.
Implementation Method 1
the first buffer structure can function as a buffer collision between the key cap and the lifting/lowering assembly, thereby lowering the sound of tapping keys
Implementation Method 2
an elastic element, disposed on the switch
Data Source
Figure 1~2
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Figure 5~6
AI summary
Embodiments of this application provide a keyboard and an electronic device, implementing press buffering and noise reduction. The key includes a support plate and a plurality of keys located on one side of the support plate. Each key includes a key cap and a lifting/lowering assembly, and the lifting/lowering assembly is located between the support plate and the key cap. The key cap includes an outer surface and an inner surface opposite to the outer surface. A first clamping part and a second clamping part are provided on the inner surface. The lifting/lowering assembly includes a first support and a second support. The first support and the second support each include a first end and a second end. The first end of the first support is connected to the first clamping part, and the second end of the first support is connected to the support plate. The first end of the second support is connected to the second clamping part, and the second end of the second support is connected to the support plate. A first buffer structure is further provided on the inner surface of the key cap. When the key cap is pressed, the second end of the first support is in contact with the first buffer structure, and the second end of the second support is in contact with the first buffer structure.