Explosion-Protected Housing Window Flanging for Modular Sealing

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Solution Overview

Problem

Existing explosion-protected housings for electromagnetic radiation transmission and reception have high production costs and lack flexibility in assembly and maintenance, requiring multiple components for secure attachment and replacement of window elements.

Innovation Solution

The housing body features a flanging mechanism on the window element's second side, pressing it against a seat within the housing, using a metallic edge formed by cold bending, and optionally combined with elastic sealing or adhesive, to create a pressure-resistant and dust-tight connection, allowing for modular and cost-effective assembly and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple components are used for secure attachment of window element, then reliability of connection is improved, but device complexity and production costs increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into the flanging mechanism: mechanical attachment, sealing, and structural support are integrated into a single feature rather than requiring separate components. The flanging element simultaneously secures the window element to the housing and provides the sealing interface, reducing component count while maintaining connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flanging mechanism serves multiple purposes: it attaches the window element, provides sealing through elastic sealing elements, and maintains structural integrity. This multi-functional design eliminates the need for separate attachment hardware, sealing rings, and mounting brackets, thereby reducing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple components are used for secure attachment of window element, then reliability of connection is improved, but production costs increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By merging attachment and sealing functions into the flanging mechanism, the patent reduces the total number of parts that need to be manufactured, stored, and assembled. This consolidation lowers production costs while maintaining the reliability required for explosion-protected environments.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic sealing elements are designed as simple, inexpensive components that can be easily replaced if needed. These sealing elements provide the necessary sealing function at minimal cost compared to complex mechanical sealing systems.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Strength

If traditional attachment methods are used, then connection strength is improved, but ease of replacement and maintenance deteriorates

Engineering Contradiction:
Improveconnection strengthVSAvoidwindow element replacement
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The window element is designed as a separate, replaceable module that can be independently removed from the housing. The flanging mechanism allows the window element to be detached without damaging the housing or requiring disassembly of other components, enabling easy replacement and maintenance while maintaining strong connection during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment system transitions from a static, permanent fixation to a dynamic, reversible connection. The flanging mechanism with elastic sealing elements allows the window element to be securely attached during operation but easily removed when maintenance is needed, providing both connection strength and ease of replacement.

Inventive Principle:
Principle #15Dynamics

4Reliability

If pressure-resistant housing design is implemented, then safety against internal explosion is improved, but device complexity increases

Engineering Contradiction:
Improveexplosion protectionVSAvoidhousing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The flanging mechanism is integrated directly into the housing structure, combining the explosion protection function with the window element attachment function. This integration avoids adding separate protective structures while maintaining the pressure-resistant design required for explosion-protected environments.

Inventive Principle:
Principle #5Merging (Combining)

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 reduces production costs and enhances flexibility by minimizing components, enabling quick and flexible replacement of window elements without compromising safety, while maintaining ignition protection types, particularly pressure-resistance and dust-tightness.

Implementation Method 1

a flanging (11) on a second side (6) of the window element (5), wherein the flanging (11) presses the window element (5) in the direction of a seat (13) that is formed in the interior of the housing body (1)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

one elastic sealing element (12) is arranged between the seat (13) and the first side (7) of the window element (5)

Methodology Applied
Scientific EffectElastic sealing: Elasticity

Implementation Method 3

the window element (5) has a circumferential area (8) that extends from the first side (7) to the second side (6) of the window element (5) and that is fastened to the housing by means of an elastic adhesive

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS12510385B2Explosion-protected housing for means for transmitting and receiving electromagnetic radiation
Publication Date: 2025.12.30 MINIMAX GMBH & CO KG
  • US12510385B2 patent drawing
  • US12510385B2 patent drawing
  • US12510385B2 patent drawing

AI summary

The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation. The housing comprises a housing body that is configured to receive such transmission and/or reception means and a window element having a first side that faces the housing interior and an opposite second side that faces away from the housing interior, wherein the window element transmits electromagnetic radiation. The housing body has a flanging on the second side of the window element, said flanging pressing the window element in the direction of a seat that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.