Top-Mounted Condensing Module for Space-Saving Laundry Dryers

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Solution Overview

Problem

Existing laundry dryer and washer/dryer designs face challenges in minimizing the encumbrance of components necessary for drying air circulation, particularly in terms of space constraints within the existing washer cabinet.

Innovation Solution

A top module is designed to be mounted over the cabinet, incorporating a moisture condensing system using a heat pump, which includes an evaporator and condenser, along with air passageways and filters to dehydrate and reheat the drying air, reducing the need for additional space-consuming components within the cabinet.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional components for drying air circulation are added to the existing washer cabinet, then the laundry drying function is achieved, but the space constraints within the cabinet are violated

Engineering Contradiction:
Improvelaundry drying functionVSAvoidcabinet space
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent relocates the moisture condensing system from the horizontal plane within the cabinet to the vertical dimension by placing it on the top of the cabinet. This dimensional transition allows the system to utilize previously unused vertical space, thereby achieving the drying function without encroaching on the cabinet's internal volume.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent divides the washing machine into functionally independent modules: the washing drum/cabinet remains separate from the drying/condensing system. This segmentation allows each module to be optimized independently, with the condensing system occupying the top surface while the cabinet maintains its original washing capacity and internal space.

Inventive Principle:
Principle #1Segmentation

2Volume of stationary object

If a moisture condensing system is integrated into the existing washer design, then space requirements are reduced, but substantial modifications to the washer design are required

Engineering Contradiction:
Improvespace requirementsVSAvoiddesign modifications
Core Design Contradiction:
Volume of stationary objectVSEase of manufacture

Solution Approach 1:

The patent combines the moisture condensing system with the existing washing machine by positioning it on the top surface, creating an integrated dual-function appliance. This merging approach allows space reduction while minimizing modifications to the original washer design, as the condensing system operates as an added component rather than a reconfigured internal structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The top surface of the washing machine is transformed into a multi-functional element: it serves both as the closing cover for the cabinet and as the mounting platform for the moisture condensing system. This universalization of the top surface reduces the need for additional space-consuming components while maintaining the original washer's structural integrity.

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

3Adaptability or versatility

If the moisture condensing system is placed within the cabinet, then the drying function is achieved, but the encumbrance of components increases

Engineering Contradiction:
Improvedrying air circulationVSAvoidcomponent encumbrance
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the moisture condensing system from the cabinet's internal space and places it on the top of the cabinet. This extraction removes the encumbrance of components from the cabinet interior, allowing the drying function to be achieved without increasing device complexity within the main body of the washing machine.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This solution effectively reduces space requirements by integrating the moisture condensing system within the top module, allowing for efficient drying air circulation and moisture removal without substantial modifications to the existing washer design, while also saving water and electrical energy.

Implementation Method 1

The moisture condensing means comprises an evaporator of a heat pump

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 2

The heat pump is fluidly coupled or couplable to a compressor either attached to the top or being accommodated in correspondence of a basement of the laundry drying appliance

Methodology Applied
Scientific EffectHeat pump: Heat Exchanger

Data Source

PatentEP3109358B1Appliance for drying laundry
Publication Date: 2018.08.22 ELECTROLUX HOME PROD CORP NV
  • EP3109358B1 patent drawingFigure 1
  • EP3109358B1 patent drawingFigure 2
  • EP3109358B1 patent drawingFigure 3A~3B

AI summary

A top (119) adapted to match and close from above a cabinet (110) of a laundry drying appliance (100). The top is formed as a ready-to-mount part ready to be mounted to the cabinet and forms a moisture condensing module for dehydrating drying air used to dry laundry within a drying drum of the laundry drying appliance. The top has a drying air inlet (510), a drying air outlet (515), fluid passageways defined thereinside from said drying air inlet to said drying air outlet for the passage of the drying air to be dehydrated and moisture condensing means arranged inside said fluid passageways.