Modular Keyboard Switch Assembly for Precision Alignment
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Solution Overview
Problem
Manufacturing keyboards is complex due to the small size and high precision required for individual key mechanisms, leading to challenges in accurate alignment and assembly, which can result in high failure rates if components are misaligned.
Innovation Solution
A modular switch assembly is introduced, comprising a switch housing, collapsible dome, actuation member, and terminals, pre-assembled into an integrated unit that can be easily mounted on a keyboard base, reducing the need for separate alignment and coupling of components and facilitating efficient assembly using automation equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individual key mechanisms are manufactured with small size and high precision, then keyboard functionality is improved, but manufacturing complexity and alignment difficulty increase
Solution Approach 1:
The keyboard is divided into multiple modular key mechanisms, where each key mechanism is a self-contained unit comprising a switch housing, collapsible dome, actuation member, and terminal. These modular units can be manufactured separately and then assembled into the final keyboard product, reducing the overall manufacturing complexity while maintaining high precision alignment through standardized interfaces.
Solution Approach 2:
Multiple components within each key mechanism (switch housing, collapsible dome, actuation member, terminal) are merged into a single integrated modular unit. This consolidation reduces the number of separate parts that need to be aligned and assembled, thereby reducing assembly complexity while preserving the precise functional relationships between components.
2Productivity
If individual key components are assembled separately, then manufacturing flexibility is improved, but assembly time and failure rate increase
Solution Approach 1:
The key mechanisms are pre-assembled into complete functional modules before being integrated into the keyboard. This preliminary assembly ensures that all components within each module are properly aligned and connected, reducing the likelihood of assembly failures when the modules are installed into the final keyboard product.
Solution Approach 2:
Each modular key mechanism is designed as a self-contained unit with integrated retention features and electrical connections that automatically engage with corresponding structures on the keyboard base during assembly. This self-aligning, self-securing design reduces the need for complex assembly operations and minimizes assembly errors.
Data Source
AI summary
A keyboard is disclosed. The keyboard includes a keyboard housing and a switch assembly coupled to the keyboard housing. The switch assembly includes a switch body defining an interior volume, a collapsible dome positioned in the interior volume, an actuation member configured to actuate the collapsible dome in response to an actuation of the actuation member, and a cover coupled to the switch body. The cover retains the actuation member to the switch body. The keyboard also includes a flexible material coupled to the keyboard housing and extending over the actuation member.