Refrigerated Vehicle Insulating Floor With Profiled Fiber-Reinforced Cover
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Solution Overview
Problem
Existing insulating floors for refrigerated vehicles are heavy due to metal or wooden layers, which compromise insulation properties and increase overall thickness, and they do not effectively accommodate chassis components, leading to reduced stability and increased energy consumption.
Innovation Solution
A vehicle body with an insulating floor featuring a profiled, fiber-reinforced plastic lower cover layer and a wooden upper loading floor element, where the gap between them is filled with thermally insulating foam, allowing for customizable insulation thickness and accommodation of chassis components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal or wooden layers are used in insulating floors, then load-bearing capacity is improved, but weight increases and insulation properties deteriorate
Solution Approach 1:
The patent uses a composite structure consisting of a foam core layer (insulation material) sandwiched between two fiber-reinforced plastic cover layers. This composite material approach provides both the required load-bearing capacity through the reinforced plastic layers and excellent insulation properties through the foam core, while significantly reducing weight compared to traditional metal or wood constructions.
Solution Approach 2:
The lower cover layer is designed as a profiled molded part with a specific geometry that provides structural strength. The profiled design with recesses and protrusions creates a shell structure that efficiently distributes loads while using minimal material, thereby reducing weight while maintaining load-bearing capacity.
2Stability of the object's composition
If metal or wooden layers are used in insulating floors, then structural stability is improved, but insulation thickness is reduced
Solution Approach 1:
The sandwich construction with foam core and fiber-reinforced plastic cover layers creates a structurally stable composite panel. The foam core provides dimensional stability and prevents deformation, while the thin cover layers provide structural integrity. This allows for maximum insulation thickness within the available space while maintaining structural stability.
Solution Approach 2:
The profiled lower cover layer acts as a structural shell that provides stability through its geometric design. The recesses and protrusions create a rigid structure that resists bending and deformation, enabling the use of thicker insulation material without compromising structural stability.
3Ease of manufacture
If traditional insulating floor structures are used, then manufacturing simplicity is maintained, but adaptability to chassis components is reduced
Solution Approach 1:
The lower cover layer is manufactured as a profiled molded part with integrated recesses and protrusions. This profiled design allows the insulating floor to adapt to various chassis configurations and components. The molding process integrates these adaptive features directly into the structure, maintaining manufacturing simplicity while significantly improving adaptability to different chassis designs.
Solution Approach 2:
The profiled lower cover layer serves multiple functions: it provides structural support, enables adaptation to various chassis configurations through its geometric features, and facilitates integration with other vehicle components. This multi-functionality is achieved through a single molded part design, maintaining ease of manufacture while enhancing versatility.
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 solution reduces weight, maintains stability, enhances insulation properties, and optimizes space utilization by integrating chassis components, thus reducing energy consumption and production costs.
Implementation Method 1
A gap formed between the lower cover layer and the upper loading floor element is filled with a thermally insulating foam material
Implementation Method 2
The lower cover layer is a profiled molded part formed from at least one plastic film and a fiber-reinforced, in particular glass-fiber-reinforced, plastic material pressed onto the plastic film
Data Source
Figure 1~2
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Figure 5~6
AI summary
The invention relates to a vehicle body (10), in particular a refrigerated vehicle, with an insulated floor (11) comprising at least one lower cover layer (12) and at least one upper loading floor element (13) arranged opposite the lower cover layer (12), in particular at least one wooden panel, wherein a space (14) formed between the lower cover layer (12) and the upper loading floor element (13) is filled by a thermally insulating foam material, wherein the lower cover layer (12) is a profiled molded part (12') formed from at least one plastic film (15) and fiber-reinforced, in particular glass fiber-reinforced, plastic material pressed with the plastic film (15).