Composite ATM Housing Structure for Dual Security Standards
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Solution Overview
Problem
Existing automated transaction machines often fail to meet both UL and CEN safety standards for resistance to fire, explosives, rain, wind, and theft, particularly in their structural design and security features.
Innovation Solution
The automated transaction machine incorporates a lower unit with interior and exterior walls made of different metals or metal alloys, separated by a non-metallic layer like concrete, and an upper unit with insulation and a transport system, adhering to both UL and CEN standards, along with features such as air conditioning and moisture barriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automated transaction machine uses a single-material construction for walls, then the manufacturing process is simpler, but it cannot simultaneously meet both UL and CEN safety standards for fire resistance, theft resistance, and environmental protection
Solution Approach 1:
The patent applies composite materials by constructing walls with multiple layers including inner and outer metal skins (different metals or alloys) separated by a non-metallic core material such as concrete, foam, or insulation material. This composite structure enables the automated transaction machine to simultaneously achieve fire resistance, theft resistance, and environmental protection required by both UL and CEN safety standards, while the layered design allows each material to contribute its specific protective properties.
Solution Approach 2:
The patent applies segmentation by dividing the wall structure into distinct functional layers: inner metal skin, non-metallic core material, and outer metal skin. Each layer serves a specific protective function, and the segmented design allows for optimized selection of materials for fire resistance, structural strength, and environmental sealing, thereby meeting multiple safety standards through differentiated material properties in different sections of the wall.
2Strength
If the automated transaction machine uses thick metal walls for theft resistance, then security is improved, but fire resistance and environmental protection capabilities are reduced
Solution Approach 1:
The patent uses composite materials with inner and outer metal skins providing theft resistance through high structural strength, while the non-metallic core material (concrete, foam, or insulation) provides fire resistance and environmental protection. This composite construction allows thin metal layers to suffice for security, eliminating the need for thick metal walls that would otherwise be required, thereby simultaneously achieving theft resistance, fire resistance, and environmental protection.
Solution Approach 2:
The patent applies local quality by assigning different material properties to different layers of the wall structure: metal skins provide local strength for theft resistance at the surface, while the non-metallic core material provides local fire resistance and environmental sealing in the interior. This localized functional differentiation allows each material to optimize its specific protective property without requiring uniform thick metal construction throughout.
3Reliability
If the automated transaction machine uses different metals for interior and exterior walls, then compliance with both UL and CEN standards is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the wall into separate manufacturable components: inner metal skin, non-metallic core material, and outer metal skin. Each component can be manufactured independently using appropriate processes for that material, then assembled together. This segmented approach simplifies manufacturing compared to creating a monolithic multi-material structure, as each layer can be produced and quality-tested separately before final assembly.
Solution Approach 2:
The patent uses composite materials with standardized layering (inner metal skin, non-metallic core, outer metal skin) that can be manufactured using repeatable assembly processes. The use of discrete, separable layers with clear interfaces allows for modular manufacturing and assembly, reducing overall manufacturing complexity despite the use of different metals, as each layer can be independently fabricated and then combined through standardized joining methods.
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
The structure provides enhanced safety and security compliance, ensuring resistance to fire, explosives, rain, wind, and theft while maintaining operational efficiency and user interface functionality.
Implementation Method 1
The interior and exterior walls are separated by a layer of non-metallic material, such as concrete, disposed therebetween
Implementation Method 2
The upper unit may further include an air conditioning unit disposed therein
Data Source
AI summary
An automated transaction machine includes upper and lower units. The lower unit has a chest with a main body. The main body of the lower unit forms a cavity and has interior and exterior walls, made of different metals, metal alloys or composite metallic material. There is a non-metallic material layer disposed therebetween. There is opening for passage of documents or other items between the upper and lower units. The upper unit has a housing with a main body. The main body forms a cavity. The main body of the upper unit has an interior and an exterior wall. A transport system may be disposed in the housing to transport documents between the upper and lower units.