Extractor Fan Housing Rotation for Flexible Ceiling Installation

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Solution Overview

Problem

Existing extractor devices integrated into ceilings face challenges in adapting to structural conditions, requiring complex installation processes and adjustments, especially when the air outlet position needs to be changed.

Innovation Solution

The extractor device features a fan housing and fan that can be attached separately to the extractor housing, with fastening means allowing for relative positioning and rotation, enabling easy adjustment of the air outlet direction without disturbing other components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the fan box is integrated into the extractor housing as a single unit, then the structural strength is improved, but the adaptability to different structural conditions deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidadaptability to structural conditions
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The invention divides the integrated fan box structure into separate components: the extractor housing and the fan housing that can be attached separately. This segmentation allows each component to be optimized independently while maintaining overall structural integrity, resolving the contradiction between structural strength and adaptability.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If the fan box is fixed in a specific orientation, then the manufacturing precision is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvemanufacturing precisionVSAvoidease of installation
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The invention introduces rotational capability to the fan housing through circular fastening means, transforming the fixed orientation into a dynamic, adjustable configuration. This allows the fan housing to be rotated to different orientations during installation while maintaining precise positioning through the fastening mechanism.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the fan and fan housing are attached together as a single unit, then the device complexity is reduced, but the ease of repair deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidease of maintenance
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The invention separates the fan assembly from the fan housing attachment to the extractor housing, allowing the fan housing to be detached independently. This segmentation enables maintenance personnel to access and service the fan without removing the entire housing assembly, improving ease of repair while maintaining manageable device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3220060B1Vapour extraction device
Publication Date: 2019.04.17 BSH HAUSGERATE GMBH
  • EP3220060B1 patent drawingFigure 1
  • EP3220060B1 patent drawingFigure 2~3
  • EP3220060B1 patent drawingFigure 4~5

AI summary

The present invention relates to an extractor device comprising an extractor housing (11), at least one fan (12) and a fan housing (10) with at least one air inlet opening (1010) and one air outlet opening (1000). The extractor device is characterized in that the fan (12) is attached to the extractor housing (11) and the fan housing (10) is attached to the extractor housing (10) separately from the fan (12).