Detergent Storage Frame with Integrated Capacity and Level Sensing

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Solution Overview

Problem

Existing laundry treating apparatuses lack convenience in detergent storage capacity, require separate detergent reservoirs, and do not easily allow for detergent level sensing, making them less user-friendly and more difficult to manufacture and use.

Innovation Solution

A laundry treating apparatus with a detergent storage frame that integrates detergent storage directly within the apparatus, allowing for separate storage of different detergents and featuring a cover for easy access and leak prevention, along with a detecting sensor to monitor detergent levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a separate detergent reservoir is used within the storage, then the detergent can be stored, but the detergent storage capacity is reduced and the structure becomes more complex

Engineering Contradiction:
Improvedetergent storage capacityVSAvoidstructure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The invention removes the separate detergent reservoir component entirely and replaces it with a detergent storage space directly formed within the storage frame. This extraction of the unnecessary intermediate component increases the usable storage capacity while simplifying the overall structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges the detergent storage function directly into the storage frame by forming a detergent storage space within it. This consolidation eliminates the need for a separate reservoir and integrates multiple functions into a single unified structure, thereby increasing capacity and reducing complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If the storage is fixed within the cabinet, then the structure is stable, but the detergent storage capacity is limited

Engineering Contradiction:
Improvedetergent storage capacityVSAvoidstructural stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The invention makes the storage movable along the front-rear direction while maintaining structural stability through guide rails and limiting mechanisms. This dynamic capability allows the storage to be extended for detergent access or removed for cleaning, thereby increasing usable capacity without compromising structural integrity.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the detergent storage space is closed, then the detergent is protected from leakage, but the ease of adding detergent is reduced

Engineering Contradiction:
Improveleakage preventionVSAvoidease of adding detergent
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention makes the cover movable between opened and closed positions, allowing users to easily access the detergent storage space to add detergent while maintaining a closed protective state during normal operation. This dynamic cover design balances leakage prevention with operational convenience.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If no detergent level sensing is provided, then the structure is simpler, but the user convenience is reduced

Engineering Contradiction:
Improveuser convenienceVSAvoidsensing system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention uses a simple sensor that detects the presence or absence of detergent through basic physical or chemical properties, replacing complex measurement systems. This approach provides user convenience through automated detection while maintaining structural simplicity.

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

Data Source

PatentEP3974573A1Laundry treating apparatus
Publication Date: 2022.03.30 LG ELECTRONICS INC
  • EP3974573A1 patent drawingFigure 1~2
  • EP3974573A1 patent drawingFigure 3
  • EP3974573A1 patent drawingFigure 4~5

AI summary

Disclosed is a laundry treating apparatus including a cabinet (10) having a detergent opening (15) defined a front surface thereof, a tub (20) located inside the cabinet, a drum (30) rotatably disposed inside the tub, and a storage (300) for storing detergent to be supplied to the tub therein, wherein the storage is retracted into or extended out of the cabinet through the detergent opening, wherein the storage (300) includes a storage frame (310) having a detergent storage space (S) defined therein for storing the detergent therein, wherein a top surface of the storage frame (310) is opened such that the detergent storage space is opened, a cover seat portion (320) formed on the storage frame (310) and formed along a perimeter of the detergent storage space, and a cover (350) detachably coupled to the cover seat portion (320) to cover at least a portion of an open top surface of the detergent storage space (S).