Vertical Ice-Making Disc Assembly to Reduce Refrigerator Footprint

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing ice-making devices with multiple trays in refrigerators suffer from reduced storage rates due to the increased plane area required for the trays, which limits the amount of ice that can be produced without compromising the refrigerator's storage capacity.

Innovation Solution

The ice-making device features multiple trays arranged vertically, with a cover guiding falling ice to the side, and includes a gas supply system with an air duct to efficiently cool the trays, allowing for increased ice production without expanding the device's footprint.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple ice-making trays are arranged laterally to increase ice production, then the quantity of ice produced increases, but the occupied area in the refrigerator increases, reducing the storage rate

Engineering Contradiction:
Improveice production quantityVSAvoidoccupied area in refrigerator
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent transitions from lateral (horizontal) arrangement of ice-making trays to vertical arrangement, utilizing the depth dimension of the refrigerator. Multiple trays are stacked vertically at different height positions, allowing simultaneous ice production from multiple trays without increasing the footprint area, thus resolving the contradiction between ice production quantity and occupied area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If multiple ice-making trays are arranged vertically to reduce occupied area, then the storage rate increases, but ice from upper trays may interfere with lower trays

Engineering Contradiction:
Improveoccupied area in refrigeratorVSAvoidice interference between trays
Core Design Contradiction:
Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and isolates the ice discharge paths of upper and lower trays by providing separate storage containers for each tray. Ice from the upper tray falls into a first storage container, while ice from the lower tray falls into a second storage container, preventing interference between ices from different trays while maintaining vertical arrangement.

Inventive Principle:
Principle #2Taking out (Extraction)

3Area of stationary object

If multiple ice-making trays are arranged vertically, then the occupied area is reduced, but the cooling uniformity across trays may deteriorate

Engineering Contradiction:
Improveoccupied area in refrigeratorVSAvoidcooling uniformity
Core Design Contradiction:
Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by providing separate cooling mechanisms or optimized cooling flow paths for each tray position. The cooling system is designed to deliver cool air uniformly to each tray level, ensuring that ice-making conditions are maintained consistently across vertically stacked trays despite their different positions.

Inventive Principle:
Principle #3Local quality

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 configuration enables the production of more ice while maintaining a high storage rate in the refrigerator, as the vertical arrangement minimizes the occupied area and the gas supply system enhances cooling efficiency.

Implementation Method 1

a gas supply portion and an air duct, wherein the gas supply portion supplies gas to an upper space of at least one of the ice-making trays, and the air duct is provided on a side of the ice-making tray and connected between the upper space of the ice-making tray supplied with the gas from the gas supply portion and the upper space of another ice-making tray

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP4033182B1Ice-making device and refrigerator with it
Publication Date: 2025.02.12 QINDAO HAIER REFRIGERATOR CO LTD
  • EP4033182B1 patent drawingFigure 1~2
  • EP4033182B1 patent drawingFigure 3~4
  • EP4033182B1 patent drawingFigure 5

AI summary

Disclosed are an ice-making device capable of supplying more ice while suppressing a decrease in the storage rate of a refrigerator, and a refrigerator with same. The ice-making device (2) is provided with a plurality of ice-making discs (10A, 10B) that are arranged at high and low positions, and a rotating mechanism, wherein the rotating mechanism can enable the plurality of ice-making discs (10A, 10B) to rotate, and rotation between an ice-making position where a liquid can be stored and accumulated and an ice-releasing position where formed ice is enabled to be released and drop down can be achieved; and a cover (30) is provided on an upper portion of the ice-making disc (10B) located at the low position, and the cover (30) is used for guiding ice that drops from the ice-making disc (10A) located at the high position such that same drops down from a side of the ice-making disc (10B) located at the low position.