Multilayer Vacuum Drawer Lid With Integrated PCB for Compact Height
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Solution Overview
Problem
Existing vacuum drawer system lids are bulky and prone to malfunctions due to constant actuation, leading to operational issues and reduced robustness.
Innovation Solution
A multilayer lid with integrated lifting and evacuation means, featuring a compact design with minimal constructional height and enhanced sealing, incorporating a core layer with recesses for electronic components and airtight top layers for automated and fault-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If lifting and evacuation means are integrated in the lid, then the constructional height is reduced, but the lid becomes heavy and bulky
Solution Approach 1:
The lid is divided into multiple functional layers: an outer airtight top layer, a core layer containing recesses for electronic components, and an outer airtight bottom layer. This segmentation allows each layer to be optimized for its specific function while distributing the overall weight and complexity.
Solution Approach 2:
Electronic components are arranged in recesses within the core layer, utilizing the third dimension (depth) rather than spreading components across the surface. This vertical arrangement reduces the horizontal footprint and overall constructional height while maintaining component functionality.
2Length of stationary object
If the lid is made compact with integrated components, then the constructional height is minimized, but the lid becomes prone to malfunctions due to constant actuation
Solution Approach 1:
The sandwich construction with multiple airtight layers provides structural reinforcement and protection for integrated components before malfunctions can occur. This robust construction anticipates wear and stress from constant actuation, cushioning against potential failure points.
Solution Approach 2:
The lid employs composite construction combining different materials and layers (outer airtight top layer, core layer with recesses, outer airtight bottom layer) to achieve both compactness and enhanced durability. The multi-layer structure provides both mechanical strength and protection for sensitive electronic components.
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 solution results in a robust, maintenance-free, and permanently fault-free operation of the vacuum drawer system, increasing its overall reliability and reducing the likelihood of malfunctions during use.
Implementation Method 1
The drawer interior is evacuated to a slight negative pressure
Implementation Method 2
Air is pumpable out from the drawer interior through an air duct
Data Source
AI summary
A multilayer cover has a sandwich design for placement on a drawer of a vacuum drawer device, and the cover allows an evacuation of the drawer interior after sealing against the drawer. The cover has an outer air-tight cover layer and a core layer, recesses molded into the core layer and partly into one of the at least one outer cover layer, and an evacuation channel, a pump, and at least one sensor are arranged therein. The cover is to have a more compact design with a very low height, resulting in a minimal susceptibility to malfunction. This is achieved in that a printed circuit board is arranged on one of the at least one outer air-tight cover layers so as to face the core layer or the at least one outer air-tight cover layer is designed as a printed circuit board on which the core layer lies and on which the electric components integrated into the cover are mechanically held and are electrically connected.