Reconfigurable Freezer Compartments With Adaptive Temperature Control

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Solution Overview

Problem

Existing refrigerators and freezers lack flexibility in adapting to individual customer requirements for temperature and humidity settings across multiple compartments, as they are limited by fixed compartment configurations and separate temperature control systems.

Innovation Solution

The ability to reposition walls between compartments, allowing them to combine into a larger compartment with adjustable air parameter settings, using sensors and adaptive control systems to regulate temperature and humidity uniformly across the combined space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If compartments are separated with fixed walls and individual temperature control, then each compartment can be independently adjusted to specific temperature setpoints, but the device cannot be adapted to different customer requirements for compartment configuration

Engineering Contradiction:
Improveadaptability to customer requirementsVSAvoidcomplexity of control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The partition wall is made movable rather than fixed, allowing it to be repositioned between different compartments. This dynamic structure enables the device to adapt to different customer requirements by changing the physical configuration of compartments, while the control system automatically adjusts temperature settings based on the new configuration detected by sensors.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control system is designed to perform multiple functions: it controls temperature for individually separated compartments when walls are in position, and automatically switches to controlling merged compartments when walls are repositioned. This multi-functionality allows the same device to serve different storage needs without requiring separate control systems for each configuration.

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

2Ease of operation

If a wall is repositioned to combine compartments, then a larger common compartment is formed, but the setting means must be changed from compartment-specific control to unified control

Engineering Contradiction:
Improveease of compartment configurationVSAvoidcomplexity of setting means
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control system automatically detects when a partition wall has been repositioned using sensors and autonomously switches from controlling individual compartments to controlling the merged compartment. This self-service capability eliminates the need for manual reconfiguration of control settings, making the operation simple for users while managing the complexity internally.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Sensors detect the position of partition walls and provide feedback to the control system. Based on this feedback, the control system automatically adjusts its operation mode - switching between individual compartment control and unified merged compartment control. This feedback mechanism enables automatic adaptation without user intervention.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If separate refrigerant circuits are assigned to each compartment, then each compartment can be independently controlled, but energy efficiency decreases when compartments are merged

Engineering Contradiction:
Improveflexibility of refrigerant circuit configurationVSAvoidenergy efficiency
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The refrigerant circuit configuration is made dynamic, allowing the system to switch between operating modes: when partition walls are in position, separate refrigerant circuits operate independently for each compartment; when walls are repositioned, the system merges the refrigerant circuits to operate as a unified system, improving energy efficiency for the merged configuration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The refrigerant circuit system is designed to perform multiple functions: it can operate as separate independent circuits when compartments are divided, and as a unified integrated circuit when compartments are merged. This multi-functionality allows the same refrigerant system to optimize performance for both separated and combined compartment configurations.

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

Data Source

PatentEP2221562B1Refrigeration and/or freezer device
Publication Date: 2019.04.24 LIEBHERR HAUSGERATE OCHSENHAUSEN GMBH
  • EP2221562B1 patent drawingFigure 1~4

AI summary

The freezer has two compartments separated from each other by walls e.g. intermediate walls (10, 14), horizontal intermediate wall (12), vertical partition wall (16). Setting units compartment specifically adjust a parameter e.g. temperature, of air in the compartments. One of the walls is repositioned, so that the larger compartment is developed from the compartments. Setting units are adjusted from compartment specific setting of parameter of the air to setting of parameter of the air in the larger compartment that is obtained by repositioning the walls.