Mouse Button Buffering Structure for Rocking Stability
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Solution Overview
Problem
Conventional mouse devices experience issues with button lids twisting or rocking due to uneven pressing force distribution, leading to noise generation, material powder drop, and damage to electronic switches, which impairs the tactile feel of button depression.
Innovation Solution
Incorporation of a buffering structure with lubricity or wear resistance, positioned between the button lid and the casing, to stabilize the button depression and prevent rocking, using a design where the second protrusion post is inserted into a buffering hole, maintaining a predetermined gap to ensure smooth operation and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If additional positioning mechanisms are disposed under the button lids to avoid rocking condition, then the button stability is improved, but noise is generated and material powder drops during operation
Solution Approach 1:
A buffering structure made of wear-resistant material is introduced as an intermediary component between the button lid and the positioning mechanism. This buffering structure absorbs the rocking motion and prevents direct contact between the positioning mechanism and surrounding casing parts, thereby eliminating noise and material powder generation while maintaining button stability
Solution Approach 2:
The positioning mechanism is modified by changing the material parameter of the buffering structure to wear-resistant material. This parameter change reduces friction and wear during operation, preventing material powder generation while maintaining the positioning function
2Stability of the object's composition
If positioning mechanisms are added to prevent button lid rocking, then button stability is improved, but electronic switches and associated components are damaged
Solution Approach 1:
The buffering structure serves as a protective intermediary between the button lid and the electronic switch. It absorbs lateral forces and prevents direct contact between the positioning mechanism and electronic components, thereby protecting the electronic switches from damage while maintaining button stability
Solution Approach 2:
The buffering structure is positioned in advance to cushion and absorb potential harmful forces before they can reach the electronic switches. This pre-positioned cushioning prevents damage to electronic components during button operation
3Ease of manufacture
If button lids are made with suspended edges for simple structure, then manufacturing is easier, but tactile feel of button depression is impaired
Solution Approach 1:
The buffering structure is designed with optimized geometric parameters including size, shape, and material properties. These parameter changes provide sufficient lateral support to prevent rocking while maintaining the suspended edge design, thereby improving tactile feel without complicating manufacturing
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 buffering structure enhances the stability of button depression, minimizes noise and material powder issues, and maintains the integrity of electronic switches, providing a better tactile experience and preventing damage to components.
Implementation Method 1
The buffering structure is made of the material with lubricity or wear resistance
Data Source
AI summary
A mouse device includes a casing, a circuit board and two button modules. The circuit board is disposed within the casing. Each button module includes an electronic switch, a button lid, a first protrusion post, a second protrusion post and a buffering structure. The electronic switch is disposed within the casing. An end of the button lid is connected with the casing. The first protrusion post and the second protrusion post are disposed on the bottom surface of the button lid. The buffering structure is disposed on the casing and aligned with the second protrusion post. The second protrusion post is inserted into a buffering hole of the buffering structure. While the button lid is depressed or the pressing force is released, the buffering structure is contacted or not contacted with the second protrusion post along a first lateral direction and/or a second lateral direction.