Refrigerator Evaporator Side-Blower Layout for Faster Cooling

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Solution Overview

Problem

Existing refrigerators face challenges with reduced refrigeration performance and increased energy consumption due to the placement of air blowers downstream of evaporators, which occupy space and reduce the thickness of foamed materials, affecting airflow and heat dissipation efficiency.

Innovation Solution

The air blower is positioned on the transverse side of the evaporator upstream in the airflow path, reducing the space occupied by the cooling chamber in the front-rear direction and increasing the thickness of foamed materials, allowing for improved airflow acceleration and refrigeration performance while maintaining a compact refrigerator design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the air blower is arranged downstream of the evaporator in the front-rear direction, then the airflow can be generated, but the space between the rear of the evaporator chamber and the cabinet housing is reduced, the thickness of foamed material is reduced, and refrigeration performance deteriorates

Engineering Contradiction:
Improveairflow generationVSAvoidrefrigeration performance
Core Design Contradiction:
SpeedVSLoss of energy

Solution Approach 1:

The air blower is repositioned from a downstream location (behind the evaporator in the front-rear direction) to a transverse side location (left or right side of the evaporator). This spatial reconfiguration in a different dimension allows the blower to generate airflow without occupying the critical front-rear space needed for adequate foamed material thickness, thus resolving the contradiction between airflow generation and refrigeration performance.

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

2Productivity

If the air blower is arranged downstream of the evaporator, then airflow can be produced, but the thickness of foamed material is reduced, adversely affecting refrigeration performance

Engineering Contradiction:
Improveairflow productionVSAvoidrefrigeration performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The air blower is relocated to the transverse side of the evaporator, utilizing the lateral space rather than the front-rear space. This dimensional shift enables the blower to maintain its airflow production function while preserving the necessary thickness of foamed material for reliable refrigeration performance.

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

3Speed

If the air blower is positioned to occupy space in the front-rear direction, then airflow can be generated, but the distance between the rear of the evaporator chamber and the cabinet housing is reduced

Engineering Contradiction:
Improveairflow generationVSAvoiddistance between evaporator chamber and cabinet housing
Core Design Contradiction:
SpeedVSLength of stationary object

Solution Approach 1:

The air blower is repositioned from occupying front-rear space to occupying transverse side space relative to the evaporator. This spatial reconfiguration in a different dimension allows the blower to generate airflow while maintaining adequate distance between the evaporator chamber and the cabinet housing.

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

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 enhances refrigeration speed, increases storage volume in the freezing chamber, and reduces energy consumption by optimizing airflow and heat dissipation, allowing for more efficient cooling and better user convenience.

Implementation Method 1

an evaporator located in the cooling chamber... configured to cause return airflow in the at least one storage compartment to flow into the cooling chamber to be cooled by the evaporator

Methodology Applied
Scientific EffectEvaporative cooling: Evaporation

Implementation Method 2

configured to cause return airflow in the at least one storage compartment to flow into the cooling chamber to be cooled by the evaporator

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentEP3929513B1Refrigerator with air blower located upstream of lateral side of evaporator
Publication Date: 2023.03.29 HAIER SMART HOME CO LTD
  • EP3929513B1 patent drawingFigure 1
  • EP3929513B1 patent drawingFigure 2
  • EP3929513B1 patent drawingFigure 3

AI summary

A refrigerator (100) is provided. The refrigerator includes: a cabinet, in which are defined a cooling chamber (133) and at least one storage compartment; an evaporator (150), arranged in the cooling chamber (133) and configured to cool an airflow entering the cooling chamber (133) to form a cooled airflow; and an air blower (102), arranged on a transverse side of the evaporator (150), located upstream of the evaporator (150) in an airflow path, and configured to cause a return airflow in the at least one storage compartment to flow into the cooling chamber (133) to be cooled by the evaporator (150), and cause at least part of the cooled airflow to flow into the at least one storage compartment.