Built-in refrigerator

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Solution Overview

Problem

Built-in refrigerators face inefficiencies in heat removal from the compressor compartment due to limited space and blockage by surrounding structures, which reduces their refrigerating effect.

Innovation Solution

The design includes a compressor compartment with a main air inlet and outlet on its bottom plate, a partition plate, and a wind baffle to facilitate airflow for effective heat dissipation, using a heat dissipating fan to drive air through these openings and prevent hot air recirculation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the built-in refrigerator is disposed in a limited space surrounded by wall cabinet or cupboard, then the space utilization rate and indoor design conciseness are improved, but the heat removal efficiency from compressor compartment deteriorates

Engineering Contradiction:
Improvespace utilization rateVSAvoidheat removal efficiency
Core Design Contradiction:
Volume of moving objectVSLoss of energy

Solution Approach 1:

The patent introduces a bottom air outlet positioned below the compressor compartment, utilizing the vertical dimension beneath the refrigerator to create an additional heat dissipation pathway. This allows hot air to be expelled downward through the bottom plate into the space between the refrigerator and the supporting surface, effectively adding a third dimension (vertical) to the traditional horizontal heat dissipation approach, thereby resolving the contradiction between compact installation and efficient heat removal.

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

2Device complexity

If the compressor compartment is blocked around by wall cabinet or cupboard, then the built-in appearance is achieved, but the heat discharge efficiency deteriorates

Engineering Contradiction:
Improvebuilt-in appearanceVSAvoidheat discharge efficiency
Core Design Contradiction:
Device complexityVSTemperature

Solution Approach 1:

The patent segments the heat dissipation function into multiple independent air outlets: a rear air outlet, a side air outlet, and a bottom air outlet. This segmentation allows heat to be discharged through multiple separate pathways rather than relying on a single blocked pathway, enabling the refrigerator to maintain a compact built-in appearance while ensuring efficient heat removal through distributed ventilation channels.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If air inlet and outlet are only provided at rear and side of compressor compartment, then the structure is simple, but hot air recirculation occurs reducing refrigeration effect

Engineering Contradiction:
Improvestructure simplicityVSAvoidrefrigeration effect
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent adds a bottom air outlet that utilizes the vertical space beneath the refrigerator to create a new dimension for air flow. This allows the air circulation system to draw in ambient air from below and discharge it rearward, establishing a cross-flow pattern that prevents hot air recirculation while maintaining structural simplicity. The bottom outlet effectively creates a separate air intake zone that is spatially distinct from the discharge zones.

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 ensures timely and effective heat discharge from the compressor compartment, enhancing the refrigeration effect while optimizing space usage and preventing hygienic dead angles.

Implementation Method 1

a heat dissipating fan located in the compressor compartment... air from the environment, driven by the heat dissipating fan, entering the compressor compartment through the main air inlet and then flowing to the environment through the main air outlet

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Data Source

PatentEP3745059B1Built-in refrigerator
Publication Date: 2022.09.07 HAIER SMART HOME CO LTD
  • EP3745059B1 patent drawingFigure 1
  • EP3745059B1 patent drawingFigure 2~3

AI summary

The present invention discloses a recessed refrigerator supported on a supporting surface, the refrigerator including a cabinet, a door movably disposed at a front side of the cabinet, a compressor compartment formed in a rear lower portion of the refrigerator and a compressor and a heat dissipating fan located in the compressor compartment, the cabinet including a bottom plate, the bottom plate being disposed apart from the supporting surface, and the bottom plate including a compressor compartment bottom plate located below the compressor compartment, the compressor compartment bottom plate being formed with a main air inlet and a main air outlet communicating the external with the compressor compartment, air from the external, driven by the heat dissipating fan, entering the compressor compartment through the main air inlet and then flowing to the external through the main air outlet.