Ventilation unit with casing
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Solution Overview
Problem
Existing ventilation systems face challenges in aesthetics, maintenance, and energy efficiency, particularly in concealed installations and renovations, as they often require extensive modifications and are not easily repairable.
Innovation Solution
A local ventilation unit is designed to be built into a wall with a casing that allows for easy installation and removal of functional modules, featuring a heat exchanger for energy recuperation and minimal visual impact, with air channels and filters accessible without additional wall openings, enabling flexible maintenance and aesthetic integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the ventilation unit is built into a wall cavity for aesthetic concealment, then the visual appearance is improved, but maintenance and repairs become time-consuming and difficult
Solution Approach 1:
The ventilation unit is divided into separate functional modules (air handling unit, heat exchanger, filters) that can be independently accessed and maintained. The casing is segmented with removable panels that allow technicians to access internal components without dismantling the entire unit from the wall cavity, resolving the contradiction between concealed installation and ease of maintenance.
Solution Approach 2:
Functional modules are designed to be extractable from the casing through the wall cavity opening. The modules can be partially removed or accessed through dedicated access panels, allowing maintenance personnel to service the unit while it remains aesthetically concealed within the wall structure.
2Loss of energy
If a modified pipe network is installed throughout the building for balanced ventilation, then energy efficiency is improved through heat recuperation, but installation time and cost increase significantly
Solution Approach 1:
The ventilation unit combines multiple functions (air handling, heating, cooling, filtration, and heat recuperation) into a single integrated device that can be installed in one location within the wall cavity. This eliminates the need for extensive pipe networks distributed throughout the building while maintaining energy efficiency through internal heat exchangers that recuperate heat between supply and extract air streams.
Solution Approach 2:
The ventilation unit is designed as a multi-functional device that can provide heating, cooling, ventilation, and air filtration through a single installation. The heat exchanger serves multiple purposes by transferring heat between air streams, and the unit can operate in different modes (heating, cooling, ventilation) without requiring separate systems, thereby reducing installation complexity and time.
3Volume of moving object
If the casing is made compact to fit within wall cavities, then aesthetic integration is improved, but access for installing and maintaining functional modules becomes more difficult
Solution Approach 1:
The casing is designed to utilize the three-dimensional wall cavity space efficiently, with functional modules arranged in a compact configuration that fits within the limited volume. Access panels and module removal paths are designed to exploit available space in different dimensions, allowing technicians to install and maintain modules through openings in the wall finish without requiring excessive clearance or disassembly.
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 provides a concealed, energy-efficient ventilation system with simplified maintenance and aesthetic integration, reducing installation time and costs while maintaining energy efficiency and visual appeal.
Implementation Method 1
heat exchangers which allow heat exchange between the incoming air and the outgoing air so as to thus ventilate in energy-efficient manner
Data Source
Figure 1
Figure 2A~3
Figure 4~5B
AI summary
Ventilation unit configured to be built into a wall of a building, the ventilation unit comprising one or more functional modules and a casing, which casing has a first side which is at least partially open such that the one or more functional modules can be installed in and dismantled from the casing via the first side, which casing has a second side which is configured to lie substantially parallel to the wall, wherein the first side lies substantially at right angles to the second side and is configured to lie substantially parallel to a reveal of an opening in the wall, wherein the first side comprises a cover for covering the opening substantially in line with the reveal.