Explosion-proof Housing Movable Interface for Simplified Cabling
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Solution Overview
Problem
Existing explosion-proof housings for securing ignition sources are complex and voluminous due to the need for separate connection spaces and mechanisms that match the type of protection, particularly in flameproof enclosures, which complicates the cabling of electrical components and increases space and design requirements.
Innovation Solution
A housing design with a movable interface that allows cable connection without opening the housing, enabling electrical and mechanical coupling of cables directly to an interface on the housing body, eliminating the need for a separate connection space and simplifying the construction by allowing the interface to protrude for external access and secure cable insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate terminal compartment with opening and closing mechanism is used for wiring, then electrical components can be supplied with power, but the housing becomes large and complex
Solution Approach 1:
The patent merges the terminal compartment functionality directly into the housing body by providing an interface element that can be integrated into the housing wall. This eliminates the need for a separate terminal compartment and its associated opening/closing mechanisms, thereby reducing structural complexity while maintaining cabling capability. The interface element is directly formed in or on the housing, combining the housing structure with the electrical connection function.
Solution Approach 2:
The patent extracts the terminal compartment as a separate functional element (interface element) that can be integrated into the housing wall rather than requiring a distinct enclosed space. This extraction allows the cabling function to be performed through a simplified interface structure that is part of the housing itself, eliminating the need for complex opening and closing mechanisms while maintaining electrical connection capability.
2Ease of manufacture
If a separate terminal compartment is used for wiring, then electrical power can be supplied to components, but the housing requires more space and design effort
Solution Approach 1:
The patent combines the terminal compartment function with the housing body by integrating the interface element directly into the housing wall. This merging eliminates the need for additional space dedicated to a separate terminal compartment, reducing the overall housing volume while simplifying the cabling process. The interface element is formed as part of the housing structure, requiring less design effort and manufacturing complexity.
3Reliability
If flameproof enclosure design is used for terminal compartment, then ignition sources are protected, but the housing becomes complex with multiple mechanisms
Solution Approach 1:
The patent merges the flameproof protection function directly into the interface element and housing structure, eliminating the need for separate flameproof mechanisms. The interface element is integrated into the housing wall with flameproof gaps and pressure-resistant design, combining the electrical connection function with explosion protection in a single simplified structure rather than requiring multiple separate mechanisms.
4Ease of operation
If terminal compartment with opening mechanism is used, then wiring can be accessed, but the housing requires complex opening and closing mechanisms
Solution Approach 1:
The patent extracts the terminal compartment as a separate functional interface element that is integrated into the housing wall, eliminating the need for a distinct enclosed space with opening mechanisms. The interface element provides direct access for wiring through the housing wall without requiring complex opening and closing mechanisms, as the interface itself is the access point rather than a door or cover to a separate compartment.
Data Source
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AI summary
The presented invention relates to a housing (100) for securing ignition sources, wherein the housing (100) is explosion-proof against an explosion taking place in the housing (100), and wherein the housing (100) comprises: - a housing body (101), - an opening (107) provided in the housing body (101) for connecting to a cable entry (109, 303), - an interface (113, 301) arranged on the housing body (101) for connecting to a cable (127) passing through the opening (107), wherein the interface (113, 301) is movable between a coupling position and a rest position, wherein in the coupling position the interface (113, 301) is further away from an end of the housing body (100) opposite the opening (107) along a vertical axis of the housing body (101) than in the rest position.