Ventilation device assembly
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Solution Overview
Problem
Existing ventilation device arrangements for buildings are not space-efficient and visually inconspicuous, often protruding into the interior or exterior environments, and require complex and costly installation methods, especially when integrating air outlets with skylights.
Innovation Solution
The ventilation device is integrated into the roof structure between rafters, with air ducts connected to the exterior and interior, and can be covered by the roof skin and wall surface, using a decentralized heat recovery design with air passages integrated into the skylight flashing for efficient ventilation without visible protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the ventilation device is arranged completely in the roof structure between rafters, then the visual appearance is improved and space is saved, but the installation complexity increases
Solution Approach 1:
The ventilation device is divided into separate functional modules: air conveying device, heat recovery unit, and control system. This segmentation allows for standardized manufacturing and simplified installation within the roof structure, reducing the overall installation complexity while maintaining the concealed appearance.
Solution Approach 2:
The ventilation device is nested within the existing roof structure between the rafters, with the air conveying device and heat recovery unit arranged in a compact, space-efficient configuration. This nesting approach allows the ventilation system to be integrated into the roof without protruding, improving visual appearance while utilizing the available space effectively.
2Object-affected harmful factors
If the air conveying device is arranged completely in the roof structure, then noise insulation is improved, but the air duct connection complexity increases
Solution Approach 1:
Flexible air duct connectors are used as intermediaries between the air conveying device and the air duct system. These flexible connections reduce noise transmission while maintaining adequate airflow, and they simplify the connection process compared to rigid ductwork, reducing installation complexity.
Solution Approach 2:
Flexible air ducts and acoustic insulation materials are employed to connect the air conveying device to the air distribution system. The flexible nature of these components allows for easier installation and adjustment, reducing connection complexity while providing noise insulation benefits.
3Volume of moving object
If the ventilation device is integrated into the roof structure, then the installation space is optimized, but the maintenance accessibility worsens
Solution Approach 1:
The air conveying device is designed as a removable module that can be extracted from the roof structure for maintenance and servicing. This extraction capability allows technicians to access and maintain the ventilation components without requiring full roof disassembly, improving maintenance accessibility while maintaining compact integration.
Solution Approach 2:
Maintenance access points and service openings are pre-planned and integrated into the roof structure design. These preliminary provisions for access allow maintenance personnel to reach the ventilation device components through predetermined pathways, reducing the complexity of maintenance operations despite the integrated arrangement.
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 arrangement provides a space-saving, visually unobtrusive ventilation system with improved noise insulation and simplified installation, allowing for effective air exchange and heat recovery while maintaining a sleek appearance and reducing installation complexity.
Implementation Method 1
the active air conveying device is provided, which is present, for example, as an electrically operated fan or the like. In addition to the ventilation device, the ventilation device arrangement also includes at least one area of the roof structure
Implementation Method 2
The ventilation device is preferably designed as a decentralized ventilation device with heat recovery
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The arrangement has a decentralized ventilation apparatus (8) comprising an active air conveying device and arranged in a roof structure (7). The roof structure comprises a wall surface that limits an inner surface or dwelling area, where a roof construction (2) supporting a roof membrane is arranged between the roof membrane and the wall surface. The ventilation apparatus is arranged between two rafters (3), where a residential roof window (10) is fastened at the rafters. A frame partially covers the roof window and comprises an air inlet and an air outlet.