Electrostatic Sealed Adhesive Assembly

Solution Overview

Problem

Adhesives used for applying explosive charges to structures are susceptible to deterioration due to climatic conditions such as high humidity, temperature variations, and UV radiation, leading to a short usable lifetime.

Innovation Solution

An assembly comprising layered structures with an adhesive sealed by an electrostatic attractive force between materials, providing a quasi-seal that shields the adhesive from environmental factors without the need for additional sealing elements, allowing for longer adhesive effectiveness and structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional sealing elements are used to protect adhesive from climatic conditions, then adhesive durability is improved, but device complexity and weight increase

Engineering Contradiction:

Improveadhesive durabilityVSAvoidsealing structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes traditional sealing elements (tape, clips, adhesives) from the packaging structure entirely. Instead, it relies on the inherent electrostatic attraction between oppositely charged layers to maintain the sealed state, extracting the complex sealing mechanism and replacing it with a simpler electrostatic field-based solution.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical sealing systems (physical seals, tapes, clips) with an electrostatic field-based sealing mechanism. The oppositely charged layers create an electrostatic attractive force that holds the packaging sealed without requiring mechanical fastening elements, thus reducing complexity and weight while maintaining sealing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If traditional sealing elements are used to protect adhesive, then adhesive durability is improved, but weight increases

Engineering Contradiction:

Improveadhesive durabilityVSAvoidpackaging weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent removes traditional sealing elements (tape, clips, adhesives) from the packaging structure entirely. Instead, it relies on the inherent electrostatic attraction between oppositely charged layers to maintain the sealed state, extracting the complex sealing mechanism and replacing it with a simpler electrostatic field-based solution.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical sealing systems (physical seals, tapes, clips) with an electrostatic field-based sealing mechanism. The oppositely charged layers create an electrostatic attractive force that holds the packaging sealed without requiring mechanical fastening elements, thus reducing complexity and weight while maintaining sealing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If adhesive is exposed to climatic conditions, then ease of operation is improved, but adhesive lifetime deteriorates

Engineering Contradiction:

Improveadhesive accessibilityVSAvoidadhesive lifetime

Core Design Contradiction:

Ease of operationVSDuration of action of moving object

Solution Approach 1:

The patent employs preliminary action by pre-charging the layers with opposite electrostatic charges before use. This pre-established electrostatic field automatically seals the adhesive from climatic conditions as soon as the layers are assembled, without requiring additional sealing steps. The adhesive is thus immediately protected while remaining easily accessible when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The packaging structure performs self-service by using its own electrostatically charged layers to create the sealing effect. The oppositely charged layers automatically attract each other to seal the adhesive, eliminating the need for separate sealing operations or additional sealing materials, thus extending adhesive lifetime while maintaining ease of use.

Inventive Principle:

Principle #25Self-service

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 assembly exhibits climatic resilience, maintaining adhesive functionality and structural integrity over a wider temperature range and extended periods, while being lightweight and easier to remove, with the electrostatic seal being more durable than traditional sealing elements.

Implementation Method 1

The second portion and the fourth portion are held in contact with each other by an attractive force between the first material and the second material

Methodology Applied

Scientific EffectElectrostatic attractive force: Electrostatics

Data Source

PatentEP3559139B1Adhesive assembly and method of affixing an adhesive

Publication Date: 2021.04.07 LINEAR SHAPED LTD

Figure 1a~1b
Figure 2~3
Figure 4

AI summary

An assembly comprising a first layered structure and a second layered structure. The first layered structure comprises a first portion and a second portion, the second portion comprising a first material. The second layered structure comprises a third portion and a fourth portion, the fourth portion comprising a second material. There is an adhesive between the first portion and the third portion. The second portion and the fourth portion each overhang an edge of the adhesive and are configurable to a sealed configuration with the second portion and the fourth portion held in contact with each other by an attractive force between the first material and the second material.