Perforated Ice Bin Tray for Spherical Ice Debris Separation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing refrigerators and freezers face issues with spherical ice deteriorating during storage due to ice debris, rolling, and poor appearance, as well as difficulty in easy discharge and alignment of ice in the ice bin.

Innovation Solution

A refrigerator or freezer design featuring an ice bin with an inclined ice tray and tray holes to separate and store spherical ice and debris, preventing debris from adhering to the ice and allowing easy discharge and alignment of ice for smooth surface maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If spherical ice is made and stored in an ice bin, then the ice can be conveniently used and stored, but the ice surface deteriorates due to adhesion of ice debris generated during removal

Engineering Contradiction:
Improveconvenience of ice storageVSAvoidice surface smoothness
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The ice bin is segmented into two distinct storage spaces: a first storage space for spherical ice and a second storage space for ice debris. This segmentation prevents ice debris from adhering to the spherical ice, maintaining surface smoothness while preserving storage convenience.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Ice debris is extracted and separated from the spherical ice storage area into a dedicated second storage space. This extraction eliminates the harmful effect of debris adhesion on ice surface quality while maintaining the overall storage function.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If ice is stored in a traditional ice bin, then storage is simple, but ice cubes roll and collide causing damage and poor appearance

Engineering Contradiction:
Improvesimplicity of storage structureVSAvoidice cube integrity
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The first storage space is designed with a specific local quality feature: an inclined bottom surface that directs ice cubes toward a front discharge port. This inclination prevents random rolling and collisions by providing a controlled movement path, maintaining ice integrity while preserving storage simplicity.

Inventive Principle:
Principle #3Local quality

3Volume of stationary object

If ice debris is not separated from spherical ice, then storage space is maximized, but ice appearance deteriorates due to debris adhesion

Engineering Contradiction:
Improveice bin storage capacityVSAvoidice surface quality
Core Design Contradiction:
Volume of stationary objectVSManufacturing precision

Solution Approach 1:

The second storage space for ice debris is nested within or adjacent to the first storage space for spherical ice. This nesting arrangement allows both storage functions to coexist in a compact configuration, maximizing overall storage capacity while preventing debris adhesion to ice.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Productivity

If ice is discharged from ice bin without alignment, then discharge is quick, but ice cubes are misaligned causing handling difficulties

Engineering Contradiction:
Improvespeed of ice dischargeVSAvoidice handling convenience
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The inclined bottom surface of the first storage space performs a preliminary alignment action on ice cubes before discharge. By guiding ice cubes to roll and settle in a specific orientation toward the front discharge port, the system prepares ice for easy handling while maintaining quick discharge speed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3653968B1Home appliance with an ice maker
Publication Date: 2024.01.03 LG ELECTRONICS INC
  • EP3653968B1 patent drawingFigure 1
  • EP3653968B1 patent drawingFigure 2
  • EP3653968B1 patent drawingFigure 3

AI summary

Provided is a refrigerator comprising: a cabinet having a freezing compartment defined therein; an ice-maker disposed in the freezing compartment to make spherical ice, wherein the ice is removed from falls down from the ice maker; an ice bin (500) disposed below the ice-maker for storing ice removed from the ice-maker; and an ice tray (520) disposed inside the ice bin, wherein at least a portion of a bottom face (521) of the ice tray for receiving the ice is spaced apart from a bottom face of the ice bin, wherein a plurality of tray holes (521a) are defined to pass through the bottom face of the ice tray.