Split Keyboard Switch Structure for Wear Resistance and Color Flexibility

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Solution Overview

Problem

Existing keyboard switches cannot simultaneously achieve color diversity and durability due to the integral structure of the optical channel and base, which limits material choices and wear resistance requirements.

Innovation Solution

A split-type base structure for keyboard switches, where the supporting member and base are independent components, allowing for different material choices based on wear resistance and aesthetic requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the optical channel and base are made as an integral structure, then the structural strength is improved, but the material selection flexibility deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidmaterial selection flexibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The patent divides the integral structure into separate components: the optical channel and the base are made as independent parts that can be assembled together. This segmentation allows each component to be made from different materials optimized for its specific function - the optical channel can use transparent PC material while the base can use wear-resistant PTFE material, thus resolving the contradiction between structural strength and material selection flexibility.

Inventive Principle:
Principle #1Segmentation

2Shape

If the base is made from transparent PC material, then the aesthetic appearance is improved, but the wear resistance deteriorates

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidwear resistance
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent applies different material properties to different parts of the keyboard switch based on their specific functional requirements. The optical channel is made from transparent PC material to provide aesthetic appearance and light transmission, while the base is made from PTFE material to provide wear resistance where it contacts the button. This local differentiation of material qualities resolves the contradiction between aesthetic appearance and wear resistance.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If the supporting member and base are made as an integral structure, then the manufacturing process is simplified, but the color diversity deteriorates

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidcolor diversity
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

By segmenting the supporting member and base into separate components, the patent enables independent coloring and customization of each part. The base can be produced in various colors and materials (such as PTFE) while the optical channel maintains its transparent appearance, allowing for diverse color combinations and aesthetic options without complicating the overall manufacturing process.

Inventive Principle:
Principle #1Segmentation

4Reliability

If the supporting member is made from metal material, then the wear resistance is improved, but the light-shielding performance deteriorates

Engineering Contradiction:
Improvewear resistanceVSAvoidlight-shielding performance
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent applies metal material specifically to the supporting member where wear resistance is critical for contacting the button, while the optical channel is made from transparent material to maintain light transmission. The metal supporting member provides the necessary durability in the contact area without compromising the overall light-shielding performance of the switch assembly, as the metal is strategically placed only where mechanical support and wear resistance are needed.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12283440B2Keyboard switch with removeable supporting member
Publication Date: 2025.04.22 HUIZHOU TRANTEK ELECTRONICS
  • US12283440B2 patent drawing
  • US12283440B2 patent drawing
  • US12283440B2 patent drawing

AI summary

The present invention relates to a keyboard switch including a base, a supporting member, a spring, a button and an upper cover. The supporting member includes a first plate connected to the base to seal the opening, a tube extending substantially perpendicularly from a surface of the first plate, and a plurality of blocks extending substantially perpendicularly from the first plate and configured around the tube. There is a gap between the tube and the plurality of blocks. The base and the supporting member may be made of different materials and colors from the base, so that the supporting member may have a good light-shielding performance and durability; and the base may be made of a collocation of different materials and colors, and has a wide design space.