Ice making method

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Solution Overview

Problem

The existing ice making methods require a high number of gyrations of the gyration member to produce highly transparent ice and determine the optimal release time, leading to increased load and reduced durability of the gyration member and sensor components.

Innovation Solution

The method differentiates the driving of the gyration member for making ice for user consumption and ice for generating cold water, reducing the number of gyrations by adjusting the driving duration and using a sensor to detect the ice formation level only when necessary, with the gyration member driven during basic ice making and size detection times for user ice and only during size detection for cold water ice.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the gyration member gyrates periodically to make highly transparent ice and detect ice formation level, then the transparency and detection accuracy are improved, but the number of gyrations increases significantly leading to increased load and reduced durability

Engineering Contradiction:
Improveice transparencyVSAvoidgyration member durability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The gyration member performs partial gyrations only during specific phases (ice making phase and detection phase) rather than continuous gyrations. This partial action reduces the total number of gyrations while still achieving the required ice transparency and detection accuracy, thereby reducing wear and improving durability

Inventive Principle:
Principle #16Partial or excessive action

2Manufacturing precision

If the gyration member gyrates continuously to make both user ice and cold water ice with high transparency, then the transparency of both ice types is improved, but the number of gyrations increases significantly

Engineering Contradiction:
Improveice transparencyVSAvoidice making time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Different quality levels of ice transparency are applied to different purposes: user ice requires high transparency while cold water ice can have lower transparency requirements. The gyration member is driven only during user ice making to achieve high transparency, while cold water ice is made without continuous gyration, reducing total gyration time while meeting differentiated quality requirements

Inventive Principle:
Principle #3Local quality

3Measurement precision

If the sensor detects ice formation level continuously with gyration, then the detection accuracy is improved, but the load on the sensor and gyration member increases

Engineering Contradiction:
Improveice formation level detection accuracyVSAvoidsensor durability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The sensor performs detection at periodic intervals during specific phases (ice making phase and detection phase) rather than continuous detection. This periodic action maintains sufficient detection accuracy for determining ice release timing while reducing the operational load on both the sensor and gyration member, improving their durability

Inventive Principle:
Principle #19Periodic action

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 approach reduces the number of gyrations, decreases the load on the gyration member and sensor, and extends their operational lifespan by optimizing the driving durations and detection methods.

Implementation Method 1

With water in the tray member T, when the gyration member C periodically gyrates, waves are generated in the water in the tray member T

Methodology Applied
Scientific EffectWave generation:

Implementation Method 2

the gyration member C may also be used to detect whether or not the formation of ice I generated on the dipping members D has reached an intended level along with a sensor S

Methodology Applied
Scientific EffectPosition detection:

Implementation Method 3

when a cold refrigerant flows in the dipping members D, ice I is generated on the dipping members D

Methodology Applied
Scientific EffectFreezing: Freezing

Implementation Method 4

when a hot refrigerant flows in the dipping members D, the ice I generated on the dipping members D is separated from the dipping members D

Methodology Applied
Scientific EffectMelting: Melting

Data Source

PatentEP2585772B1Ice making method
Publication Date: 2019.06.12 WOONGJIN COWAY
  • EP2585772B1 patent drawingFigure 1
  • EP2585772B1 patent drawingFigure 2
  • EP2585772B1 patent drawingFigure 3(a)~3(b)

AI summary

There is provided an ice making method capable of reducing the required number ofgyrations of a gyration member used for making ice to have a high level of transparency and determining a point in time at which ice is to be released. The ice making method for making highly transparent ice by revolving a gyration member provided in a tray member in which water is put such that a plurality of dipping members, on which ice is generated or from which generated ice is released, are immersed, wherein a method for driving the gyration member in making ice to be supplied to a user and a method for driving the gyration member in making ice to be used for generating cold water are different in order to reduce the number of gyrations of the gyration member.