Waterproof Keyboard Sealing via Compressive Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional keyboards are prone to dust and liquid ingress through gaps between keys and the keypad, leading to signal misjudgment and potential circuit damage due to poor contact.
Innovation Solution
A waterproof keyboard design featuring a compressive waterproof layer and plate structure, where the compressive waterproof layer is clamped onto the plate structure and key shell, forming a sealed layer to prevent dust and liquid entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If keys are assembled on a keypad with through-holes, then the keyboard can be manufactured with standard processes, but dust and liquids can penetrate into gaps between keys and keypad
Solution Approach 1:
A waterproof film is disposed within the keypad, extending across openings to form a barrier that prevents dust and liquid from entering through the through-holes, while maintaining the standard key assembly structure
Solution Approach 2:
A waterproof adhesive layer is applied to the lower flange of each key, creating an intermediary sealing layer that bonds the key to the waterproof film and prevents harmful factors from penetrating the gap between key and keypad
2Ease of operation
If gaps exist between keys and keypad for key passage, then keys can be installed through through-holes, but signal transmission precision deteriorates due to dust/liquid interference
Solution Approach 1:
The waterproof film creates a sealed barrier that prevents dust and liquid from contaminating the signal transmission path, ensuring accurate signal transmission while maintaining easy key installation through the through-holes
3Device complexity
If keys pass through the keypad directly, then the structure is simple, but the circuit board is vulnerable to damage from dust and liquid
Solution Approach 1:
The waterproof film spans across the openings in the keypad, creating a protective barrier that shields the circuit board from dust and liquid while maintaining a relatively simple overall structure
Solution Approach 2:
The waterproof adhesive layer acts as an intermediary sealing component between the key and the waterproof film, providing additional protection to the circuit board without significantly increasing structural complexity
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 design effectively seals the gaps between keys and the keypad, preventing dust and liquid from reaching the circuit board, ensuring accurate signal transmission and protecting the circuit from damage.
Implementation Method 1
the compressive waterproof layer and the plate structure are clamped by the slot, to enable the shell to be sealed with the compressive waterproof layer
Implementation Method 2
the compressive waterproof layer is made of an elastic material
Data Source
AI summary
The present invention provides a waterproof keyboard, including a keypad and a plurality of keys passing through the keypad. The keypad includes a compressive waterproof layer, a plate structure, and a plurality of through-holes, the compressive waterproof layer covering the plate structure, and the through-hole passing through the compressive waterproof layer and the plate structure. Each of the keys passes through one of the through-holes, and the compressive waterproof layer and the plate structure are clamped by means of a slot that is formed on a lateral surface of the key, to enable the key to be sealed with the compressive waterproof layer to form a sealed layer, so as to achieve the waterproof effect.