Ventilation unit with housing
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Solution Overview
Problem
Existing ventilation systems face challenges in cost-efficient production, maintenance, and energy efficiency, particularly in building-integrated solutions that require extensive pipe networks and are aesthetically disruptive.
Innovation Solution
A modular ventilation unit with shape-compatible housing parts that allow for easy assembly and maintenance, incorporating a heat exchanger for energy recuperation, and strategically positioned air channels to prevent condensation, along with integrated air pumps for balanced airflow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a local ventilation unit is built into a wall cavity with integrated heat exchanger and air channels, then heat recuperation and controlled airflow are achieved, but production cost and manufacturing complexity increase
Solution Approach 1:
The housing is divided into two separate parts (first housing part and second housing part) that can be manufactured independently using standard rotational moulding or injection moulding processes. This segmentation allows each part to be produced cost-effectively in existing production lines, while still achieving the integrated functionality of wall-built ventilation with heat exchanger and air channels when assembled together.
Solution Approach 2:
The ventilation unit components (heat exchanger, air channels, functional modules) are nested within the housing parts that fit into the wall cavity. The first and second housing parts together form the complete housing assembly, with channels and heat exchanger accommodation integrated within the nested structure, achieving space-efficient design without requiring extensive pipe networks throughout the building.
2Shape
If a ventilation unit is fully concealed in the wall cavity, then aesthetic appearance is improved, but maintenance and repair accessibility deteriorates
Solution Approach 1:
The housing is segmented into two separable parts that can be easily disconnected. This allows maintenance personnel to access the channels, heat exchanger, and functional modules by simply separating the first and second housing parts, without requiring destructive wall opening or complex disassembly procedures, thus maintaining aesthetic appearance while enabling easy maintenance.
Solution Approach 2:
The housing assembly is designed with dynamic accessibility - while the unit remains fixed and concealed in the wall cavity during normal operation, the separable housing parts allow the system to transition to a maintenance-accessible state when needed, providing both aesthetic concealment and maintenance flexibility.
3Ease of operation
If complex pipe networks are installed throughout the building for balance ventilation, then controlled airflow and heat exchange are achieved, but installation time and cost increase
Solution Approach 1:
The ventilation unit integrates multiple functions (air intake, air outlet, heat exchange, airflow control) into a single modular device that can be installed locally in the wall cavity. This eliminates the need for extensive pipe networks throughout the building, achieving controlled balance ventilation with localized installation, thereby reducing installation time and cost while maintaining operational effectiveness.
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 production costs and simplifies maintenance while ensuring energy-efficient ventilation through modular design and strategic channel positioning, enhancing user comfort by minimizing noise and condensation issues.
Implementation Method 1
heat exchangers which allow heat exchange between the ingoing air and the outgoing air so as to thus ventilate in energy-efficient manner
Data Source
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AI summary
A ventilation unit (10) configured to be built into a wall of a building, the ventilation unit comprising a heat exchanger (40) and a housing assembly which comprises a first housing part (100) and a second housing part (200) which are mutually connectable and shape-compatible, wherein the first housing part (100) and the second housing part (200) are configured to each form at least a portion of a first channel (20; 120, 220) for allowing air to flow from outside to inside the building, a second channel (30; 130, 230) for allowing air to flow from inside the building to outside, and a heat exchanger accommodation (140, 240) configured to accommodate the heat exchanger (40).