Adhesive-Sealed Electrical Module Housing for Explosion Safety
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Solution Overview
Problem
In high-voltage electrical converters, the failure or explosion of an electrical module can lead to the escape of explosive gases, causing adjacent modules to be damaged or destroyed due to the loss of air gap integrity, resulting in a chain reaction that can have severe consequences.
Innovation Solution
The electrical module features a module housing with two interlocking parts bonded by an adhesive layer, forming a sealed structure that prevents gas escape during an explosion, with features like annular and semi-annular adhesive layers and recesses/protrusions to enhance sealing and distribute pressure evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the module housing is sealed to prevent gas escape during explosion, then the reliability and safety are improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The module housing is divided into multiple housing parts that are joined together using adhesive layers. This segmentation allows for simpler individual components that can be manufactured separately and assembled, reducing overall manufacturing complexity while maintaining the sealed structure needed for safety during explosions.
Solution Approach 2:
An adhesive layer is introduced as an intermediary substance between housing parts to create the seal. This adhesive mediator provides the necessary sealing function to prevent gas escape during explosions, achieving the safety requirement without requiring complex mechanical sealing mechanisms.
2Ease of manufacture
If adhesive bonding is used to join housing parts, then the ease of manufacture is improved, but the strength and explosion resistance may be insufficient
Solution Approach 1:
The adhesive layer performs multiple functions simultaneously: it bonds the housing parts together structurally and provides the sealing function to prevent gas escape. This merging of bonding and sealing functions into a single element maintains ease of manufacture while achieving sufficient explosion resistance.
Solution Approach 2:
The housing structure combines different materials (housing parts and adhesive layer) to create a composite structure that leverages the strengths of each material. The adhesive layer, as a composite bonding material, provides both mechanical strength for explosion resistance and ease of application for manufacturing.
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 design effectively prevents gas from escaping during an explosion, protecting adjacent modules and ensuring the module housing remains intact, thereby preventing a chain reaction and reducing the risk of damage to nearby electrical components.
Implementation Method 1
there is at least one adhesive layer between the two housing parts, the adhesive layer adhesively bonding the two housing parts to one another
Data Source
AI summary
An electrical module contains at least one electrical component which is accommodated in a module housing. The module housing has at least two housing parts which lie one on the other and, on their own or together with one or more further housing parts of the module housing, delimit the interior of the module housing. There is at least one adhesive layer between the two housing parts, the adhesive layer adhesively bonding the two housing parts to one another.