Explosion-Proof Push-Button Panel Segmentation Design
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Solution Overview
Problem
Existing explosion-proof push-button panels for remote electric control via cable in potentially explosive environments lack optimal explosion-proof protection, ergonomics, lightness, strength, compactness, ease of use, service life, and ease of assembly and disassembly.
Innovation Solution
The design includes a hollow base and cover forming a closed metal enclosure with non-explosion-proof electric switches and movable cylinders controlled by sliding pistons and elastic silicone bands, providing explosion-proof characteristics while ensuring ergonomic and durable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explosion-proof switches are used in potentially explosive environments, then explosion-proof protection is improved, but device complexity and weight increase
Solution Approach 1:
The device is divided into two functional parts: a non-explosion-proof control panel containing simple switches and indicators, and a separate explosion-proof enclosure containing the hazardous electrical components. This segmentation allows the complex explosion-proof requirements to be isolated to a specific compartment while the user interface remains simple and lightweight.
Solution Approach 2:
An explosion-proof barrier or seal acts as an intermediary between the non-explosion-proof control panel and the explosion-proof enclosure. This intermediary component allows electrical connections while maintaining explosion-proof isolation, resolving the contradiction by enabling communication between simple and complex zones.
2Reliability
If explosion-proof switches are used in potentially explosive environments, then explosion-proof protection is improved, but weight increases
Solution Approach 1:
By segmenting the device into non-explosion-proof and explosion-proof zones, the heavy explosion-proof components are confined to a separate enclosure rather than distributing weight throughout the entire device. The control panel can be lightweight while the explosion-proof enclosure handles the weight burden.
Solution Approach 2:
The explosion-proof functionality is extracted from the main control panel and placed into a separate enclosure. This extraction allows the primary user interface to remain lightweight while the explosion-proof protection is provided by a dedicated, isolated component.
3Device complexity
If non-explosion-proof switches are used in potentially explosive environments, then device complexity is reduced, but explosion-proof protection deteriorates
Solution Approach 1:
The system is segmented into a simple non-explosion-proof control panel and a separate explosion-proof enclosure. The switches and indicators remain simple and non-explosion-proof in the control panel, while the explosion-proof protection is provided by the separate enclosure containing the electrical components.
Solution Approach 2:
An explosion-proof barrier serves as an intermediary that allows the use of simple non-explosion-proof switches in the control panel while still providing explosion-proof protection for the overall system. The barrier isolates the hazardous electrical components from the potentially explosive atmosphere.
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 configuration enhances explosion-proof protection, meets ergonomic and durability requirements, and simplifies assembly and disassembly, adhering to standards like ATEX, IECEx, and UL, while extending the operational temperature range and service life.
Implementation Method 1
one or more elastic silicone bands secured to the inner surface of the cover, in correspondence with said holes, so as to elastically adhere to the base of the piston and ensure that the latter will elastically return into the idle position following actuation
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An explosion-proof push-button panel for remote electric control via cable is described, which comprises: - a hollow base (1) and a cover (2); - a board (6), internal to said hollow base (1); - one or more electric switches having non-explosion-proof characteristics (3), secured to said board inside said hollow base (1); - one or more movable cylinders (4) for each one of said electric switches (3) inside said hollow base (1), said movable cylinders (4) being adapted to control the opening and closing of corresponding switches to which they are secured; - one or more pistons (5) capable of sliding through corresponding holes (7) in said cover (2), said pistons being adapted to engage against corresponding cylinders (4) and to be actuated from the outside of the push-button panel for causing said cylinders to move; - one or more elastic silicone bands (9) secured to the inner surface of the cover, in correspondence with said holes (7), so as to elastically adhere to the base of the piston (5) and ensure that the latter will elastically return into the idle position following actuation; - said hollow base (1) and said cover (2) being adapted to form an operationally closed metal enclosure having explosion-proof characteristics.