Room Air Filter Housing With Switchable Dust Extraction Inlets

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing air filtration devices for renovation and construction lack versatility, as they are limited to either room air filtration or dust extraction, failing to efficiently handle both functions in a single device.

Innovation Solution

A filter device with adaptable sides that can switch between open air intake and hose connection modes, featuring interchangeable adapter plates and air outlet configurations to enable both free air filtering and efficient dust extraction, using a combination of coarse and HEPA filters for effective particle separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a device is designed for room air filtration only, then it can filter fine dust effectively, but it cannot perform dust extraction at work sites

Engineering Contradiction:

ImprovefunctionalityVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The filter device is designed with interchangeable side walls that can be configured in different modes: open sides for room air filtration, adapter plates with hose connections for dust extraction at work sites, and closed sides for transport. This multi-functional design allows a single device to perform both room air cleaning and targeted dust extraction without requiring separate specialized equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device features modular side walls that can be independently interchanged based on the required function. Each side wall can be configured as an open air inlet, an adapter plate with hose connection, or a closed transport cover. This segmentation allows flexible reconfiguration of the device for different application scenarios without redesigning the entire system.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If hose connections are added for dust extraction, then the device can extract dust at work sites, but it loses the ability to perform free air intake filtration

Engineering Contradiction:

Improvedust extraction capabilityVSAvoidoperation flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The side walls are designed as interchangeable dynamic components rather than fixed structures. Users can adapt the device configuration in real-time based on operational needs by replacing side walls between different tasks. This dynamic reconfiguration enables seamless transition between room air filtration mode and dust extraction mode, maintaining operational flexibility while expanding functionality.

Inventive Principle:

Principle #15Dynamics

3Ease of manufacture

If all sides are closed for transport, then the device is compact and secure, but air intake and exhaust openings are blocked

Engineering Contradiction:

Improvetransport convenienceVSAvoidair flow efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The transport cover is designed with integrated air inlet and air outlet openings that maintain airflow pathways even when the device is in transport configuration. This localized design feature ensures that the cover provides security and compactness for transport while preserving the necessary air flow paths for filtration operation, eliminating the need to completely open the device for air intake.

Inventive Principle:

Principle #3Local quality

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 device effectively filters fine and hazardous dust up to 0.3 microns, improving indoor climate by allowing flexible operation modes for various renovation tasks, extending filter life through pre-filter use, and simplifying transport with a trolley design.

Implementation Method 1

a fine filter, in particular a HEPA filter (High Efficiency Particulate Air Filter), arranged in the housing and designed like a hollow cylinder

Methodology Applied

Scientific EffectPhysical filtration: Filter (physical)

Implementation Method 2

Each of the three openings can be covered by a coarse filter

Methodology Applied

Scientific EffectPhysical filtration: Filter (physical)

Implementation Method 3

The negative pressure allows fresh air to enter a room, with the blown-out air exiting the room cleaned

Methodology Applied

Scientific EffectNegative pressure: Pressure Gradient

Data Source

PatentEP2524739B1Filter device for filtering the air of a room, in particular for renovation work in buildings

Publication Date: 2016.04.06 HEYLO DRYING SOLUTIONS

Figure 1~2
Figure 3~4
Figure 5

AI summary

Filter device (100) for filtering room air, having a housing (10) in which at least one dust filter (11), in particular a HEPA filter, and at least one fan for dust extraction are arranged, the housing (10) having a plurality of air inlet sides and having at least an air outlet opening (26,27) for blowing out the air sucked into the housing (10) by the fan and the fan generates a negative pressure on each air outlet side, with a detachable adapter plate (29,30) for an intake hose on one or more air inlet sides (31,32) or a detachable cover plate (33,34,35) can be fastened so that on one or more air inlet sides either a free air intake when the adapter plate (29,30) or cover plate (33,34,35) is not mounted or a Suction is possible through a suction hose (31,32) when the adapter plate (29,30) is mounted.