Refrigerator with freezing storage assembly

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Solution Overview

Problem

Existing refrigerators fail to effectively maintain the quality of frozen food, leading to poor taste and dark color due to water loss, and increase energy consumption with inefficient freezing methods.

Innovation Solution

A refrigerator with a freezing storage assembly that includes a magnetic frame and electromagnetic coils forming magnetic fields with controlled directions to suppress ice crystal growth, reducing water loss and energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If quick freezing or supercooling is used to improve freezing storage quality, then freezing speed is increased, but energy consumption increases and refrigerating capacity must be increased

Engineering Contradiction:
Improvefreezing speedVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent applies magnetic field parameters (strength, direction, duration) to control ice crystal formation during freezing. By changing magnetic field parameters rather than solely relying on temperature parameters, the system achieves improved freezing quality without proportionally increasing energy consumption and refrigerating capacity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces a magnetic field as an intermediary factor between the refrigeration system and the food being frozen. This magnetic field mediator influences ice crystal nucleation and growth, enabling better freezing quality with reduced dependence on high refrigerating capacity and energy input

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If magnetic field is introduced to improve freezing quality, then ice crystal formation is influenced, but magnetic field assistance effect is not satisfactory in practical use

Engineering Contradiction:
Improvefreezing qualityVSAvoidmagnetic field system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the magnetic field application into multiple independent electromagnetic coils arranged in arrays. Each coil can be controlled independently, allowing the system to achieve complex magnetic field patterns while maintaining modular simplicity and ease of control

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electromagnetic coil arrays serve multiple functions: generating magnetic fields for ice crystal control, providing structural support for the freezing chamber, and enabling flexible configuration for different freezing scenarios. This multi-functionality reduces overall system complexity

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

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 magnetic field-assisted freezing method improves food quality by minimizing ice crystal damage and water loss while optimizing energy use.

Implementation Method 1

a plurality of groups of electromagnetic coils arranged on an inner surface of the magnetic frame and configured to form magnetic fields with magnetic pole directions at a set angle in the freezing storage space

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

a plurality of groups of electromagnetic coils arranged on an inner surface of the magnetic frame and configured to form magnetic fields

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12535257B2Refrigerator with freezing storage assembly
Publication Date: 2026.01.27 QINDAO HAIER REFRIGERATOR CO LTD
  • US12535257B2 patent drawing
  • US12535257B2 patent drawing
  • US12535257B2 patent drawing

AI summary

A refrigerator with a freezing storage assembly, comprising: a cabinet provided therein with a storage compartment for achieving a freezing storage function; the freezing storage assembly arranged in the storage compartment and comprising: a magnetic frame made of a magnetic material; and a storage box provided in a space enclosed by the magnetic frame and defining a freezing storage space; and a plurality of groups of electromagnetic coils arranged on an inner surface of the magnetic frame and configured to form magnetic fields with magnetic pole directions at a set angle in the freezing storage space, the magnetic fields passing through the magnetic frame to complete closed loops of magnetic lines.