refrigerator

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Solution Overview

Problem

The complexity of manufacturing processes and high costs in refrigerators are exacerbated by the need for cables to power electric components in dedicated storage regions, which complicates the layout and increases production complexity.

Innovation Solution

A refrigerator with a dedicated region module powered by a wireless charging unit, featuring a receiving terminal on the module and a transmitting terminal on the cabinet, controlled by a detector to supply power wirelessly to electric components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are laid to power electric components in the dedicated storage region, then the electric components can be powered, but the cable layout becomes complex, resulting in a more complex manufacturing process and higher cost

Engineering Contradiction:
Improvepower supply to electric componentVSAvoidcable layout complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical cable connection system with a wireless power transmission system. The transmitting terminal on the cabinet and receiving terminal on the door enable power transmission through electromagnetic fields, eliminating the need for physical cable routing between the cabinet and door assembly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts the cable layout from the power supply system by implementing wireless power transmission. The cable that would traditionally connect the electric component on the door to the power source on the cabinet is completely removed, simplifying the overall system structure.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If cables are laid to power electric components in the dedicated storage region, then the electric components can be powered, but the manufacturing process becomes more complex and cost increases

Engineering Contradiction:
Improvepower supply to electric componentVSAvoidmanufacturing process simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the mechanical cable connection system with a wireless power transmission system. The transmitting terminal on the cabinet and receiving terminal on the door enable power transmission through electromagnetic fields, eliminating the need for physical cable routing between the cabinet and door assembly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts the cable layout from the power supply system by implementing wireless power transmission. The cable that would traditionally connect the electric component on the door to the power source on the cabinet is completely removed, simplifying the overall system structure.

Inventive Principle:
Principle #2Taking out (Extraction)

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

Eliminates the need for additional cables, simplifying the structure and manufacturing process while ensuring efficient power supply to electric components.

Implementation Method 1

a wireless charging unit, the wireless charging unit comprises a receiving terminal provided on the dedicated region module and a transmitting terminal provided on the cabinet, the transmitting terminal is matched with the receiving terminal and configured to transmit generated energy

Methodology Applied
Scientific EffectWireless charging: Electromagnetic Induction

Data Source

PatentEP4141362B1refrigerator
Publication Date: 2025.12.17 QINDAO HAIER REFRIGERATOR CO LTD
  • EP4141362B1 patent drawingFigure 1
  • EP4141362B1 patent drawingFigure 2~3
  • EP4141362B1 patent drawingFigure 4~6

AI summary

The present invention discloses a refrigerator, including a cabinet and a door for opening or closing the cabinet, a dedicated region module being provided on an inner side of the door facing the cabinet, and the dedicated region module having a receiving space for storing articles, the refrigerator further includes a wireless charging unit, the wireless charging unit includes a receiving terminal provided on the dedicated region module and a transmitting terminal provided on the cabinet, the transmitting terminal is matched with the receiving terminal and configured to transmit generated energy, and the dedicated region module further includes an electric component electrically connected with the receiving terminal.