Conductive Closure Containers for Electrostatic Charge Dissipation
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Solution Overview
Problem
Existing containers for storing highly flammable liquids in the semiconductor industry face an increased risk of electrostatic charging and explosion due to insufficient electrostatic charge dissipation, particularly when using conductive elements that are prone to mechanical damage and require additional connecting components.
Innovation Solution
A container with a conductive closure means and a multi-layer structure, where the closure means is made of electrically conductive material and connected to an outer conductive layer, allowing electrostatic charges to be dissipated via a grounded tool, and the dip tube is conductively connected to the outer layer to ensure charge dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrically conductive strip is used to dissipate electrostatic charges, then electrostatic charge dissipation is achieved, but the element is susceptible to mechanical damage
Solution Approach 1:
The closure means is made of electrically conductive material, typically a plastic containing electrically conductive particles such as soot or carbon particles. This composite material provides both the mechanical strength of plastic and the electrical conductivity needed for charge dissipation, resolving the contradiction between reliability of charge dissipation and mechanical durability.
2Reliability
If additional connecting components are attached to the dip tube to discharge electrostatic charges, then electrostatic charge dissipation is improved, but device complexity increases
Solution Approach 1:
The closure means is integrated with the dip tube structure, forming a unified component that serves both as a closure and as an electrostatic charge dissipation path. The conductive closure means is electrically connected to the conductive dip tube, which is in turn connected to the outer conductive layer of the container, eliminating the need for separate connecting components while maintaining charge dissipation functionality.
3Reliability
If the closure means is made of electrically conductive material, then electrostatic charge dissipation is achieved, but manufacturing complexity increases
Solution Approach 1:
The closure means uses a plastic matrix filled with electrically conductive particles such as soot or carbon particles. This composite approach allows the closure to be manufactured using standard plastic molding techniques while incorporating conductive properties, avoiding the need for complex metal fabrication or assembly processes.
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 effectively reduces the risk of electrostatic charging and explosion by ensuring efficient electrostatic charge dissipation through the conductive closure means and dip tube connections, even when the container is opened or closed.
Implementation Method 1
The closure means is made of electrically conductive material and is designed to dissipate electrostatic charges in the liquid
Implementation Method 2
the container has an outer layer made of electrically conductive material and an inner layer made of electrically insulating material
Data Source
Figure 1
Figure 2
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AI summary
The invention relates to a container (2) for storing a liquid (3), comprising a container opening and a closure means (12) designed to close the container opening. The closure means (12) consists of an electrically conductive material and is designed to dissipate electrostatic charges from the liquid (3).