Magnetic Thin Film Filter for Hydroponic Tray Clogging

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Solution Overview

Problem

Hydroponic plant growing cabinets face clogging issues due to dust, soil, and micro particles from the turf mixture entering water conduits and perforations, leading to potential damage and difficult cleaning post-harvest.

Innovation Solution

A plant growing cabinet with a filter system inside the growing trays, utilizing a thin film filter fixed with magnets to separate turf mixture particles from water, preventing clogging and facilitating easy cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a filter is placed inside the growing tray to separate turf mixture particles from water, then clogging of water conduits and perforations is prevented, but the device complexity increases due to additional filter installation and magnetic fixation components

Engineering Contradiction:
Improveclogging preventionVSAvoidfilter installation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filter is implemented as a thin film that can be placed inside the growing tray. This thin film structure effectively separates turf mixture particles from water while maintaining simplicity in installation and removal, resolving the contradiction between clogging prevention and device complexity

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The magnetic fixation system replaces traditional mechanical fastening methods. Magnets embedded in the filter and corresponding magnetic elements in the tray enable secure attachment without screws or clips, simplifying the overall device complexity while ensuring reliable filter positioning for effective clogging prevention

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If the filter extends along the inner side walls of the growing tray to completely separate turf mixture, then clogging is prevented, but the manufacturing cost and device complexity increase

Engineering Contradiction:
Improveclogging preventionVSAvoidfilter structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filter is designed as a thin film that extends along the inner side walls of the growing tray. This flexible film structure provides complete separation of turf mixture from the water flow path, preventing clogging while maintaining a simple and elegant design that avoids complex rigid structures

Inventive Principle:
Principle #30Flexible shells and thin films

3Stability of the object's composition

If magnets are used to fix the filter to the frame, then the filter is stabilized and prevents sliding, but the device complexity increases due to magnetic components

Engineering Contradiction:
Improvefilter stabilityVSAvoidfixation mechanism complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The magnetic fixation system replaces complex mechanical fastening mechanisms such as clips, screws, or adhesives. Magnets embedded in the filter and corresponding magnetic elements in the frame provide stable fixation that prevents filter sliding while maintaining simplicity in both design and user operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic fixation system provides self-aligning and self-latching functionality. When the filter is placed in the tray, the magnetic attraction automatically secures it in the correct position without requiring user intervention for alignment or fastening, ensuring stability while minimizing complexity

Inventive Principle:
Principle #25Self-service

4Ease of operation

If a removable filter system is implemented, then cleaning becomes easier and filter replacement is simplified, but the device complexity increases due to additional fixation and release mechanisms

Engineering Contradiction:
Improvecleaning easeVSAvoidfixation mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The magnetic fixation system enables easy removal and reinstallation of the filter by simply overcoming the magnetic attraction, which requires minimal force. This replaces complex mechanical release mechanisms while providing sufficient stability during operation, thus improving ease of cleaning without significantly increasing device complexity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 filter system effectively prevents clogging of water conduits and perforations, reducing maintenance costs and time, while allowing for easy filter replacement and reuse, enhancing the operational efficiency of the plant growing cabinet.

Implementation Method 1

A second magnet is configured to be placed underneath the frame so as to vertically align with the first magnet upon attaching the flap on to the frame. The magnetic attraction fixes the filter in between the frame and the flap.

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

The filter is in the form of a thin film and allows passage of water whereas dust, soil, fibers and similar micro particles separated from the turf mixture is blocked.

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3843537B1A plant growing cabinet with improved anti clogging system
Publication Date: 2022.06.08 ARCELIK AS
  • EP3843537B1 patent drawingFigure 1
  • EP3843537B1 patent drawingFigure 2
  • EP3843537B1 patent drawingFigure 3~4

AI summary

The present invention relates to a plant growing cabinet (1) comprising; a body (2) in which at least one growing unit (3) is placed a growing tray (4) which is placed in to the growing unit (3) via a frame (5) peripherally extending away from the growing tray (4) and wherein the growing tray (4) has at least one perforation (6) at its base so as to allow passage of water between the growing unit (3) and the growing tray (4), a filter (7) is placed on to the growing tray (4) whereon a turf mixture enabling the plants to grow is placed thereby preventing the propagation of the turf mixture between the growing tray (4) and the growing unit (3) and clogging the at least one perforation (6).