A laundry dryer comprising a baffle

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Solution Overview

Problem

Laundry dryers often damage laundry containing natural fibers due to mechanical effects, and existing solutions fail to provide homogeneous drying without additional apparatuses for hanging delicate items.

Innovation Solution

A drum-type laundry dryer with a baffle system featuring a rotatable movable member connected to a retaining member, allowing the baffle to shift between perpendicular and parallel positions to the rear wall for hanging or tumbling, enabling homogeneous drying of delicate items without additional equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the drum is rotated to dry laundry, then drying efficiency is improved, but delicate laundry is damaged due to mechanical effects

Engineering Contradiction:

Improvedrying efficiencyVSAvoidmechanical damage to laundry

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The baffle is designed to be movable between a first position (perpendicular to rear wall) for tumbling and a second position (parallel to rear wall) for hanging, allowing the system to dynamically adapt its configuration based on the selected drying program to either rotate the drum for efficiency or hold the baffle stationary for delicate items

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If the drum is not rotated to prevent mechanical damage, then laundry safety is improved, but drying homogeneity deteriorates

Engineering Contradiction:

Improvemechanical damage to laundryVSAvoiddrying homogeneity

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The baffle is segmented into a retaining member and a movable member that can be independently positioned, allowing the system to create different drying configurations (tumbling or hanging) to achieve homogeneous drying without drum rotation for delicate laundry

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If additional apparatuses are added to enable hanging of delicate laundry, then functionality is improved, but device complexity increases

Engineering Contradiction:

Improvehanging capability for delicate laundryVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The baffle serves multiple functions: it acts as a tumbling element when in the first position and as a hanger support when in the second position, eliminating the need for separate hanging apparatuses and reducing overall device complexity while maintaining versatility

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The retaining member and movable member are combined into a single integrated baffle structure that can perform both tumbling and hanging functions, simplifying the device by merging what would otherwise require separate components

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP3933092B1A laundry dryer comprising a baffle

Publication Date: 2023.09.06 ARCELIK AS

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AI summary

The present invention relates to a laundry dryer (1) comprising a body (2); and a drum (3) which is disposed in the body (2), which is suitable for loading laundry therein, and which has a cylindrical side wall (4) and a rear wall (5) covering the rear side of the side wall (4).