Refrigeration and/or freezer device

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing refrigerators and freezers, such as wine refrigerators, lack effective and hygienic means for active air humidity regulation, as previous methods like using porous lava rock are unsuitable for controlled humidity adjustment and pose hygiene issues.

Innovation Solution

A refrigerator or freezer design featuring a detachable water reservoir and a control unit that allows for active adjustment of humidity levels in a storage zone, with a support grate for holding refrigerated goods, and positive-locking elements for easy assembly and disassembly, ensuring the water reservoir is made of dishwasher-safe materials for hygiene.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If porous lava rock is used in the condensate drain to increase humidity, then humidity regulation is improved, but hygiene conditions deteriorate due to the porous structure

Engineering Contradiction:
Improveair humidityVSAvoidhygiene conditions
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent applies porous materials (lava rock) to increase humidity in the storage zone, but resolves the hygiene issue by positioning the porous material in the condensation collection area rather than using it as a standalone humidity source, allowing it to be periodically cleaned with condensate water

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The system enables self-cleaning of the porous lava rock by directing condensation water through it during the defrosting process, automatically hygienizing the humidity-regulating material without manual intervention

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If a detachable water reservoir is introduced for active humidity control, then humidity regulation capability is improved, but device complexity increases

Engineering Contradiction:
Improveactive humidity controlVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The humidity control system is segmented into a detachable water reservoir that can be removed and cleaned separately from the main refrigerator unit, simplifying maintenance while preserving active humidity control functionality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The water reservoir serves multiple functions: it provides water for humidity control, acts as a weight indicator for the control unit, and can be cleaned in a dishwasher, reducing the need for separate maintenance systems

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

3Ease of repair

If the water reservoir is made dishwasher safe for hygiene, then ease of maintenance is improved, but manufacturing cost increases

Engineering Contradiction:
Improveease of maintenanceVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of repairVSEase of manufacture

Solution Approach 1:

The water reservoir is designed as an inexpensive, replaceable component that can be disposed of or easily replaced if contaminated, rather than requiring expensive sterilizable materials, maintaining hygiene while controlling costs

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

Enables controlled and hygienic air humidity regulation in the storage zone, allowing users to set desired humidity levels, thereby maintaining optimal storage conditions for items like wine.

Implementation Method 1

at least one water reservoir is detachably arranged in the storage zone... the humidity in the storage zone can be actively adjusted by the device

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4477975A1Refrigeration and/or freezer device
Publication Date: 2024.12.18 LIEBHERR HAUSGERATE LIENZ GMBH
  • EP4477975A1 patent drawingFigure 1
  • EP4477975A1 patent drawingFigure 2
  • EP4477975A1 patent drawingFigure 3

AI summary

The present invention relates to a cooling and/or freezing appliance, in particular a wine refrigerator, with a cooled interior and at least one storage zone located in the interior and designed for preferably active humidity control, wherein at least one water reservoir (1) is detachably arranged in the storage zone.