Refrigerator Evaporator Tube Layout for Larger Storage Space

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Solution Overview

Problem

Conventional refrigerators have a thicker cabinet and reduced storage space due to the placement of the mechanism and cold air generation chambers in a forward and backward configuration, which limits the available storage space.

Innovation Solution

The refrigerant tube is connected to an evaporator in a cold air generation chamber located above the storage chamber, with a capillary and guide tube configuration to efficiently pass through a predetermined wall, allowing for a more compact and efficient assembly that does not occupy storage space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the mechanism chamber and cold air generation chamber are arranged in forward and backward direction, then the cooling function is achieved, but the cabinet becomes thicker and storage space is reduced

Engineering Contradiction:
Improvecooling functionVSAvoidstorage space
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The patent changes the spatial arrangement from forward-backward (horizontal) to upper-lower (vertical) dimension. The cold air generation chamber is positioned above the storage chamber, and the mechanism chamber is integrated into the lower rear portion, utilizing vertical space to achieve the same cooling function while reducing cabinet thickness and increasing storage space.

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

2Reliability

If the refrigerant tube passes through the storage chamber to connect the evaporator, then the connection is achieved, but the inner structure becomes complex and storage space is occupied

Engineering Contradiction:
Improveconnection reliabilityVSAvoidinner structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the refrigerant tube routing from the storage chamber space and relocates it to pass through the cold air generation chamber wall directly. The refrigerant tube passes through a predetermined wall of the cold air generation chamber to connect with the evaporator, eliminating the need for the tube to traverse the storage chamber, thereby simplifying the inner structure and freeing up storage space.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the mechanism chamber is installed in the lower rear surface of the cabinet, then the cooling components are accommodated, but the lower space of the storage chamber is reduced

Engineering Contradiction:
Improvecomponent accommodationVSAvoidstorage chamber space
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent merges the mechanism chamber with the cold air generation chamber by positioning the mechanism chamber in the lower rear portion of the cold air generation chamber. This integration allows the compressor and condenser to share space with the cold air generation functions, reducing the overall space requirement and minimizing the impact on the storage chamber's lower space.

Inventive Principle:
Principle #5Merging (Combining)

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 secures more enlarged inner space in the storage chamber, enhancing storage capacity and simplifying the installation of refrigerant tubes, while maintaining efficient cold air generation.

Implementation Method 1

a capillary tube configured to reduce a pressure of refrigerant drawn into the evaporator so as to expand a volume of the refrigerant

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

an evaporator provided in the cold air generation chamber to generate cold air

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

a compressor provided outside the cold air generation chamber

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentUS9360245B2Refrigerator
Publication Date: 2016.06.07 LG ELECTRONICS INC
  • US9360245B2 patent drawing
  • US9360245B2 patent drawing
  • US9360245B2 patent drawing

AI summary

A refrigerator is disclosed. The refrigerator includes a cabinet comprising a storage chamber, a cold air generation chamber provided above the storage chamber, an evaporator provided in the cold air generation chamber, and a refrigerant tube configured to pass through a predetermined wall of the cold air generation chamber, not passing the storage chamber, to be connected with the evaporator. An object of the present disclosure is to provide a refrigerator which has an efficient installation structure of a refrigerant tube connected with an evaporator provided in a cold air generation chamber provided above a storage chamber to enlarge storage space of the storage chamber.