Absorption Refrigerator Wall Venting for Space-Efficient Cooling
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Solution Overview
Problem
Traditional absorption refrigerators for recreational vehicles require a large niche for airflow, limiting storage space efficiency and flexibility in placement, and are inefficient under cold conditions due to the need for extensive ventilation and winter covers.
Innovation Solution
An absorption refrigerator with a channel formed in the insulation material for forced airflow cooling, allowing for concentrated cooling of hot components and increased insulation usage without increasing dimensions, along with standardized aperture positioning and optional duct connections for reduced vehicle impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a large niche is provided for airflow cooling of the refrigerator system, then cooling efficiency is improved, but storage space efficiency and placement flexibility deteriorate
Solution Approach 1:
The invention moves the airflow system from a three-dimensional niche structure to a two-dimensional channel system integrated into the cabinet walls. Airflow channels are formed within the insulation material and cabinet wall structure, eliminating the need for a protruding niche while maintaining effective cooling of the refrigerator system components.
Solution Approach 2:
The airflow channels are nested within the existing cabinet structure and insulation material. The channels are formed by creating cavities within the insulation layer and cabinet wall, effectively hiding the cooling system within the cabinet's existing form factor without requiring additional external space.
2Speed
If a niche with large ventilation apertures is used, then airflow for cooling is improved, but aesthetic appeal and vehicle wall integrity deteriorate
Solution Approach 1:
The ventilation system transitions from large external apertures in the vehicle wall to small integrated outlets on the refrigerator cabinet surface. Airflow channels are routed through the cabinet wall and insulation material, allowing air to be drawn from the vehicle interior and discharged through minimal openings that preserve the vehicle's aesthetic appearance.
Solution Approach 2:
The refrigerator cabinet itself acts as an intermediary structure that houses the airflow channels and heat exchange components. The cabinet wall and insulation material serve as the medium through which air is circulated, eliminating the need for large apertures in the vehicle wall while maintaining effective cooling.
3Object-affected harmful factors
If the hot part of the refrigerator system is arranged outside the cabinet, then insulation from compartments is improved, but space utilization and structural integration deteriorate
Solution Approach 1:
The hot components (boiler, condenser, absorber) are nested within the cabinet structure by integrating them into the rear wall assembly. The components are positioned within the insulation material and cabinet wall structure, allowing them to be thermally isolated from the food compartments while remaining structurally integrated with the cabinet.
Solution Approach 2:
The arrangement transitions from external placement of hot components to internal integration within the cabinet wall thickness. The components are distributed within the three-dimensional space of the cabinet wall and insulation layer, utilizing the vertical and depth dimensions rather than requiring external horizontal space.
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
Enhances storage space efficiency, flexibility in placement, and reduces the need for winter covers by optimizing airflow and insulation, while maintaining cooling efficiency and aesthetic appeal.
Implementation Method 1
A ventilator (17) is arranged to create a forced flow of air in the channel
Implementation Method 2
The channel comprises a first and a second channel section which sections are connected by a third channel section
Implementation Method 3
Such insulation material is normally arranged also in the other cabinet walls and the cabinet doors for reducing heat transfer from the ambient atmosphere into the compartments
Implementation Method 4
an absorption refrigerating system including a heater or boiler, a water separator, a condenser, an evaporator and an absorber
Data Source
AI summary
Absorption refrigerator comprising; a cabinet having outer walls (1, 2, 4) and at least one door (3) which together encase at least one storage compartment (5) and which comprise a heat insulation material (2a, 3a, 11); and an absorption refrigerating system comprising a boiler (6), a water separator (7), a condenser (8), an evaporator (9) and an absorber (10), wherein said boiler, water separator, condenser and absorber are arranged outside said storage compartment. A channel (16) having an inlet (14) and an outlet (15) for conducting air through said channel is formed in an insulation (11) material comprised in one (4) of said outer walls. A ventilator (17) arranged to create a forced airflow in said channel. At least one of said absorber, condenser and water separator is arranged between said inlet and outlet in said channel.