Modular Decentralized Ventilation Device for Flexible Task Adaptation

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Solution Overview

Problem

Existing decentralized ventilation devices lack the flexibility to be individually adapted to specific ventilation or air conditioning tasks in rooms, requiring complex redesign or retrofitting to meet varying requirements.

Innovation Solution

A modular decentralized ventilation device structure that allows for easy adaptation by combining different modules, with the heat recovery module designed as a frame module outside the room and supply, exhaust, and recirculation modules as room modules, enabling efficient space utilization and task-specific configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a decentralized ventilation device is designed with fixed structure to meet specific ventilation tasks, then the ventilation performance for that specific task is optimized, but the device cannot be easily adapted to other ventilation or air conditioning tasks

Engineering Contradiction:
Improveadaptability to different ventilation tasksVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ventilation device is divided into separate functional modules including a supply air module, exhaust air module, and heat recovery module. Each module can be independently configured, installed, or removed based on the specific ventilation or air conditioning requirements of the room, enabling flexible adaptation without redesigning the entire system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular design allows the same basic modules to serve multiple functions depending on configuration. The supply air module can provide fresh air for ventilation or cooled air for air conditioning, the exhaust air module can remove stale air or provide heating, and the heat recovery module can operate in different modes, making the system universally applicable to various tasks.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a decentralized ventilation device is designed with all modules distributed over large distances to optimize individual module placement, then each module can be positioned optimally, but the device structure becomes complex and difficult to assemble

Engineering Contradiction:
Improveease of module assemblyVSAvoiddistance between modules
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

Multiple functional modules (supply air module, exhaust air module, heat recovery module) are combined into a single integrated housing unit. This merging allows all modules to be positioned close together within the same device structure, simplifying assembly and installation while maintaining the functional independence of each module through internal separators and ducting.

Inventive Principle:
Principle #5Merging (Combining)

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

Enables flexible and efficient ventilation and air conditioning solutions with minimal storage requirements, allowing for easy conversion or retrofitting by exchanging modules, and optimizing space usage with modules arranged closely together to form the device.

Implementation Method 1

a heat exchanger in order to thermally treat the supply air to be introduced into the room, ie to cool or heat it

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

a modular unit is also provided for this purpose [heat recovery], which can be used as an option

Methodology Applied
Scientific EffectHeat recovery: Heat Exchanger

Data Source

PatentEP2161512B1Decentralised ventilation device and ventilation assembly with such a device
Publication Date: 2017.06.21 LTG AG
  • EP2161512B1 patent drawingFigure 1~3
  • EP2161512B1 patent drawingFigure 4~6
  • EP2161512B1 patent drawingFigure 7

AI summary

The device (6) has a modular device assembly provided with a supply air part (7), exhaust air part (8), circulating air part and a heat recovery part (9) e.g. air-to-air heat exchanger, as component units (10), and rotating the air-to-air heat exchanger. The heat recovery part is formed as an edge module (14). The supply air part, exhaust air part and/or the circulating air part is formed as area modules (13). The supply air part, exhaust air part, circulating air part and/or the heat recovery part are formed as rail modules, where the heat recovery part has a bypass.