Low-Profile MX Keyboard Switch Layout for Standard PCB Compatibility
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Solution Overview
Problem
Low profile mechanical keyboard switches are not compatible with standard mechanical profile/MX profile keyboards, requiring customized PCB boards, which are expensive and hinder their widespread adoption.
Innovation Solution
A low profile switch design with a centered positioning column and specific pin configurations, including a moving unit pin and stationary unit pin, compatible with standard mechanical profile/MX profile keyboards, allowing for installation on existing PCB boards without the need for replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If low profile switches are designed with customized PCB boards, then compatibility with specific manufacturers' keyboards is improved, but cost and complexity increase
Solution Approach 1:
The low profile switch is designed with a standardized pin configuration (positioning column with outer diameter 3.85mm±0.15, moving unit pin at L1=2.55mm±0.15 and L2=5.08mm±0.15, stationary unit pin at L3=3.80mm±0.15 and L4=2.55mm±0.15) that matches the standard mechanical profile/MX profile keyboard PCB board layout. This universal design allows the low profile switch to be installed on existing standard PCB boards without requiring customized PCB boards, thereby reducing cost and complexity while maintaining broad compatibility across different keyboard manufacturers.
2Adaptability or versatility
If low profile switches use standardized pin configurations, then compatibility with existing PCB boards is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise parameter ranges for the pin configuration to balance compatibility and manufacturing feasibility. The positioning column outer diameter is set to 3.85mm±0.15mm, the moving unit pin distances are L1=2.55mm±0.15mm and L2=5.08mm±0.15mm, and the stationary unit pin distances are L3=3.80mm±0.15mm and L4=2.55mm±0.15mm. These controlled parameter variations within defined tolerances enable compatibility with standard PCB boards while accounting for normal manufacturing variations, preventing overly stringent precision requirements.
Data Source
AI summary
The invention discloses low profile switches for standard mechanical profile switch/MX profile switch keyboards, the low profile switch installed on PCB of standard mechanical profile switch/MX profile switch keyboards, the bottom of low profile switches arranged with a positioning column, the outer diameter of positioning column being 3.85 mm±0.15, one side of positioning column arranged with a moving unit pin and a stationary unit pin, the distance between moving unit pin and positioning column in X direction being L1, the distance between the moving unit pin and the positioning column in Y direction being L2, the distance between the stationary unit pin and the positioning column in X direction being L3, and the distance between the stationary unit pin and the positioning column in Y direction being L4; low profile switches in the invention compatible with standard mechanical profile switch/MX profile switch keyboards, to promote low profile switches at lower costs.