Electric Apparatus Case Sealing with Platinum Catalyst
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Solution Overview
Problem
Existing methods for sealing the junctions of electric apparatus case members using condensation-reaction-curable or heat-curable materials face challenges such as insufficient depth curing, prolonged curing times, and increased equipment costs, particularly when using ultraviolet-curable resins.
Innovation Solution
A two-liquid-mixed addition-reaction-curable sealing material with a platinum catalyst is used, which can cure at normal temperatures and has thermal-curing facilitation properties, allowing for efficient sealing without the need for heating equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If condensation-reaction-curable sealing material is used, then the sealing material can be cured at normal temperature, but the curability at depth is insufficient and curing time is prolonged
Solution Approach 1:
The patent changes the chemical reaction mechanism from condensation reaction to addition reaction, which fundamentally alters the curing parameters. The addition-reaction-curable sealing material with platinum catalyst enables complete curing at normal temperature without the byproduct formation issues of condensation reactions, achieving both normal temperature operation and adequate depth curing.
Solution Approach 2:
The patent employs a composite sealing material system consisting of two components mixed in specific ratios (first sealing material and second sealing material). This composite formulation, combined with platinum catalyst, creates a two-liquid-mixed system that achieves superior penetration and curing throughout the gap depth while maintaining normal temperature processing.
2Reliability
If heat-curable sealing material is used, then complete curing can be achieved, but heating time increases and productivity deteriorates
Solution Approach 1:
The patent replaces the thermal field (heating system) with a chemical field (platinum catalyst-mediated addition reaction). This substitution eliminates the need for external heating equipment and prolonged heating cycles, achieving complete curing through chemical reaction at normal temperature, thereby significantly improving productivity while maintaining curing completeness.
Solution Approach 2:
The sealing material system is designed to be self-curing through the platinum catalyst that initiates and drives the addition reaction without external energy input. The two-liquid-mixed formulation contains all necessary components (base resin, crosslinker, catalyst) to undergo complete curing autonomously at normal temperature, eliminating dependence on external heating infrastructure.
3Loss of time
If ultraviolet-curable resin is used, then rapid curing can be achieved, but equipment cost increases due to ultraviolet apparatus requirement
Solution Approach 1:
The patent replaces expensive, complex ultraviolet curing equipment with a simple, low-cost chemical catalyst system. The platinum catalyst, while costly per unit, is used in minimal quantities and can be reused or incorporated into the material formulation, eliminating the need for expensive UV lamps, power supplies, and control systems. This approach achieves rapid curing through chemical kinetics rather than photopolymerization infrastructure.
Solution Approach 2:
The platinum catalyst serves as an intermediary that mediates the curing reaction between the two sealing material components. Instead of using ultraviolet light as the activating agent (which requires complex equipment), the platinum catalyst directly facilitates the addition reaction, providing a simpler, more cost-effective pathway to rapid and complete curing throughout the sealing material depth.
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
This solution ensures rapid and complete curing of the sealing material, enhancing airtightness and productivity by eliminating the requirement for heating and reducing equipment costs.
Implementation Method 1
the sealing material is a two-liquid-mixed addition-reaction-curability and includes a platinum catalyst
Implementation Method 2
Due to the action of a platinum catalyst, merely by mixing two liquids, an addition reaction develops in the whole sealing material at a normal temperature and the sealing material is cured
Data Source
AI summary
There is provided a case of an electric apparatus and the manufacturing method therefor in which a sealing material, the portion of which at the depth is cured without being heated, is utilized at the junction portion of two or more case members. The case of the electric apparatus has a gap forming portion that form a gap in a junction portion where two or more case members for containing an electric apparatus are joined to each other and a sealing material filled into the gap between the gap forming portion; the sealing material is a two-liquid-mixed addition-reaction-curable sealing material that has a normal-temperature curability and includes a platinum catalyst.