Rotating Brush Mechanism for Condenser Fin Cleaning
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Solution Overview
Problem
Existing cleaning devices for condensers in refrigerators are ineffective in removing dust and debris from between heat exchange fins, leading to reduced efficiency and compressor failure, and often suffer from wear and bacterial growth due to moisture.
Innovation Solution
A cleaning device with a rotating cleaning brush mechanism, driven by a motor and wire winch, that moves vertically and rotates to reach and clean dust from heat exchange fins, using textile or unwoven fabric, and optionally includes long brush portions and a stainless mesh for comprehensive cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spraying cleaning water is used to clean the condenser, then cleaning is performed through killing germs by medicine mixed with cleaning water, but the spraying power is weak and cannot spray into between the heat exchange fins
Solution Approach 1:
The patent replaces the weak spraying mechanism with a rotating brush mechanical system. The brush is driven by a motor to rotate and physically contact the heat exchange fins, providing strong mechanical cleaning action that can effectively remove dust stuck between fins, overcoming the insufficient spraying power of the previous system.
Solution Approach 2:
The cleaning device transitions from a static spraying system to a dynamic rotating brush system. The brush rotates during cleaning to enhance contact with the fins and improve dust removal effectiveness, allowing the cleaning mechanism to adapt to the complex geometry of the heat exchange fins.
2Productivity
If an endless track filter is used to clean the condenser surface, then dust is removed through friction, but dust stuck between the heat exchange fins cannot be cleaned and the filter is prone to wear and bacterial growth
Solution Approach 1:
The patent extracts the cleaning function from the endless track filter system and implements a dedicated rotating brush mechanism specifically designed for cleaning heat exchange fins. This separate cleaning system targets the fins directly without relying on the filter's friction-based cleaning, thereby eliminating the filter's wear and bacterial growth problems while maintaining cleaning effectiveness.
Solution Approach 2:
The rotating brush acts as an intermediary cleaning element that directly contacts the heat exchange fins to remove dust. Unlike the endless track filter that relies on friction during normal operation, the brush is a dedicated cleaning tool that can be activated specifically for cleaning tasks, providing more effective and targeted dust removal from fin surfaces.
3Productivity
If a rotating cleaning brush is used to clean the condenser, then dust between heat exchange fins is effectively removed, but the device complexity increases
Solution Approach 1:
The rotating brush mechanism serves multiple functions: it cleans the heat exchange fins during operation and can be integrated with the condenser's existing structure. The brush can be designed to contact multiple fins simultaneously, providing comprehensive cleaning coverage while using a single rotating component, thereby reducing overall device complexity despite the added cleaning capability.
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
Effectively removes dust and debris from heat exchange fins, enhancing condenser efficiency and preventing compressor failure, while minimizing wear and bacterial growth.
Implementation Method 1
a cleaning brush (18) connected to the wire winch (17) and configured to clean a surface of the condenser (100) by rotating driven by the driving motor (M)
Implementation Method 2
a wire winch (17) installed at a driving axle (16) of the driving motor (M)... as the wire winch (17) rotated by the driving motor (M) winds or unwinds the wire (22) the cleaning brush (18) commutes up and down
Data Source
AI summary
A dust cleaning device for condenser of cooler is provided. Since the dust from outside is attached to the condenser due to ventilation and they become one of reasons for compressor failure, the device is configured to clean the heat exchange fin of the condenser periodically, in which a wire winch and a cleaning brush is connected to a driving axle of a driving motor such that the cleaning brush performs up-and-down motion and rotation with a power of the driving motor and cleans the heat exchange fin. In other structure, pinion and rack can be connected to the driving axle to perform the up-and-down motion. The cleaning brush is made of textile or unwoven fabric. Furthermore, the cleaning brush further includes a plurality of long brush portions protruding above the cleaning brush.