Compressor-Enclosing Evaporation Tray for Condensate Overflow Prevention

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Solution Overview

Problem

Modern refrigeration devices with improved insulation and less powerful compressors face issues with condensation water overflow due to insufficient evaporation capacity, particularly in humid environments, which can lead to electrical system damage and require additional energy or technical effort for compensation.

Innovation Solution

The evaporation tray is designed to enclose the compressor with a curved surface, allowing for improved heat exchange and enhanced evaporation performance, eliminating the need for additional heating sources and optimizing space usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If additional heating sources (tube from condenser or electrical heaters) are used to increase evaporation capacity, then evaporation performance is improved, but device complexity and energy consumption increase

Engineering Contradiction:
Improveevaporation capacityVSAvoidtechnical effort
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The evaporation tray is merged with the compressor housing to form an integrated structure. The tray is formed as an extension of the compressor housing itself, eliminating the need for separate heating components while utilizing the compressor's waste heat more effectively through increased surface contact area.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The evaporation tray features a curved bottom surface that conforms to the curved outer surface of the compressor. This curved geometry maximizes the contact area between the tray and compressor, enhancing heat transfer efficiency without requiring additional heating elements.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Productivity

If additional heating sources are used to increase evaporation capacity, then evaporation performance is improved, but energy consumption increases

Engineering Contradiction:
Improveevaporation capacityVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The compressor's waste heat, which would otherwise be dissipated to the environment, is converted into a useful heating source for the evaporation tray. The tray's close proximity to the compressor allows it to absorb this waste heat, eliminating the need for additional energy-consuming heating sources while maintaining effective evaporation capacity.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The system uses its own waste heat from the compressor to evaporate condensation water in the tray, creating a self-sustaining evaporation process that does not require external energy input. The compressor's operation automatically provides the necessary heat for water evaporation.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the evaporation tray is loosely placed on the compressor, then ease of removal for cleaning is improved, but reliability and heat transfer efficiency worsen

Engineering Contradiction:
Improveease of removalVSAvoidheat transfer stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The evaporation tray is designed as a detachable component that can be separated from the compressor housing. This segmentation allows the tray to be easily removed for cleaning while maintaining a stable, heat-efficient connection during operation through the curved surface engagement.

Inventive Principle:
Principle #1Segmentation

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 effective evaporation of condensation water, preventing overflow and reducing energy consumption while maintaining efficient operation even with less powerful compressors, and allows for a more compact and lightweight design.

Implementation Method 1

the waste heat from the compressor is no longer sufficient to evaporate the condensation water... the heat transfer between the compressor and the evaporation tray can be improved, which leads to greater heating of the condensed water in the evaporation tray

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

Condensation water collected in it evaporates due to the heating of the evaporation tray, in particular due to the transfer of heat from the compressor to the collection container, and is thus released into the ambient air

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP2788696B1Refrigeration appliance having an evaporation tray
Publication Date: 2016.02.03 BSH HAUSGERATE GMBH
  • EP2788696B1 patent drawingFigure 1
  • EP2788696B1 patent drawingFigure 2

AI summary

A refrigeration appliance (1) having a condenser (3) and an evaporation tray (5) for receiving condensation, wherein the evaporation tray (5) surrounds the condenser (3) at least in part.