Supercooling Temperature Control for Stable Thaw-and-Recool Storage

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Solution Overview

Problem

Conventional supercooling methods require complex apparatuses to generate electric or magnetic fields, leading to high power consumption and safety concerns, and are ineffective in maintaining objects in a supercooled state for extended periods without knowledge of the object's type or properties.

Innovation Solution

A method and apparatus that detect and maintain an optimum supercooling temperature by cooling an object below its phase transition temperature, sensing its state, and adjusting the cooling temperature based on the object's kind, mass, and volume, allowing for rapid detection of the optimum temperature and stable supercooling without the need for electric or magnetic fields.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If electric or magnetic field is applied to maintain supercooled state, then supercooling continuation is achieved, but device complexity and power consumption increase

Engineering Contradiction:
Improvesupercooling continuation timeVSAvoidapparatus complexity
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent removes the complex electric or magnetic field generation apparatus from the supercooling system. Instead of using external fields to maintain supercooling, the invention uses a simple cooling chamber with temperature control to achieve and maintain the supercooled state, thereby eliminating the need for complicated field-generating equipment while extending supercooling duration

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system uses the object's own thermal properties and phase transition characteristics to maintain supercooling. By controlling the cooling temperature to be above the lowest temperature reached before supercooling release, the system leverages the object's inherent behavior to sustain the supercooled state without requiring external energy input from complex apparatus

Inventive Principle:
Principle #25Self-service

2Duration of action of stationary object

If electric or magnetic field is applied to maintain supercooled state, then supercooling continuation is achieved, but power consumption increases

Engineering Contradiction:
Improvesupercooling continuation timeVSAvoidpower consumption
Core Design Contradiction:
Duration of action of stationary objectVSUse of energy by stationary object

Solution Approach 1:

The patent eliminates the high-power electric or magnetic field generation equipment, replacing it with a low-power cooling system that maintains temperature within a specific range. This extraction of complex energy-intensive components dramatically reduces power consumption while achieving extended supercooling duration

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the temperature control parameter from aggressive cooling to maintaining temperature above the lowest point before supercooling release. This parameter adjustment reduces energy consumption by avoiding excessive cooling while still preventing supercooling release, thereby extending supercooling duration with minimal power input

Inventive Principle:
Principle #35Parameter changes

3Temperature

If cooling temperature is set below phase transition temperature, then supercooling is achieved, but object may freeze and lose quality

Engineering Contradiction:
Improvecooling temperatureVSAvoidobject quality
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The system incorporates temperature sensing and control mechanisms that monitor the object's temperature and adjust cooling accordingly. By detecting when the object approaches the critical lowest temperature before supercooling release, the system provides feedback to prevent further cooling that would cause freezing, thus maintaining object quality while achieving supercooling

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent establishes a safety margin by setting the cooling temperature above the lowest temperature reached before supercooling release. This beforehand cushioning prevents the object from reaching the freezing point, ensuring quality protection while still achieving and maintaining the supercooled state

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

4Adaptability or versatility

If conventional supercooling method is used without object information, then general applicability is achieved, but supercooling duration is short

Engineering Contradiction:
Improvegeneral applicabilityVSAvoidsupercooling continuation time
Core Design Contradiction:
Adaptability or versatilityVSDuration of action of stationary object

Solution Approach 1:

The system dynamically adjusts the cooling temperature based on the object's specific characteristics such as kind, mass, and volume. Rather than using a fixed temperature setting, the cooling temperature is optimized for each object type, enabling both general applicability and extended supercooling duration by adapting to different thermal properties

Inventive Principle:
Principle #15Dynamics

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

The method effectively maintains objects in a supercooled state for extended periods, reducing power consumption and ensuring object freshness by sensing thawing times and adjusting cooling temperatures, thus extending the supercooling continuance time.

Implementation Method 1

supercooling means a phenomenon where a molten object or a solid cooled to below a phase transition temperature in a balanced state is not changed

Methodology Applied
Scientific EffectSupercooling: Supercooling

Implementation Method 2

If a temperature is slowly changed, elements composing the material keep pace with the temperature variations, maintaining stable states at each temperature

Methodology Applied
Scientific EffectPhase transition: Phase Change

Data Source

PatentUS8677770B2Supercooling method and supercooling apparatus
Publication Date: 2014.03.25 LG ELECTRONICS INC
  • US8677770B2 patent drawing
  • US8677770B2 patent drawing
  • US8677770B2 patent drawing

AI summary

The present invention relates to a supercooling method and a supercooling apparatus which can maintain an object in a supercooled state. According to the present invention, a supercooling method includes a first cooling step of cooling a stored object toward a cooling temperature below a phase transition temperature thereof, a step of judging whether the stored object is released from a supercooled state in the first cooling step, a step of thawing the stored object when the stored object is released from the supercooled state, and a second cooling step of cooling the stored object toward a cooling temperature below zero that is higher than the lowest temperature of the stored object before the release of the supercooled state, wherein the first cooling step is continuously performed when the object is maintained in the supercooled state.