Airflow conversion device and dust collector comprising same
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Solution Overview
Problem
Existing dust collectors with a dust blowing function suffer from secondary pollution due to dust-laden air being blown back, and increased wind resistance shortens the motor's service life, making the structure more complex and costly.
Innovation Solution
An airflow conversion device with a first and second flow channel and an impeller structure that allows airflow to change direction, enabling the device to be used in both air suction and blowing equipment without altering their structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air outlet duct is lengthened to enable dust blowing function, then the dust collector can blow air for dust removal, but the wind resistance is increased and the motor is heated
Solution Approach 1:
The airflow conversion device divides the airflow path into separate first and second flow channels. The first flow channel handles dust collection airflow while the second flow channel handles dust blowing airflow, preventing mixing and reducing resistance in each channel.
Solution Approach 2:
The impeller structure reverses the airflow direction by 180 degrees. Air entering through the first flow channel is converted to exit through the second flow channel in the opposite direction, enabling dust blowing without extending the original outlet duct.
2Adaptability or versatility
If the air outlet duct is lengthened to enable dust blowing function, then the dust collector can blow air for dust removal, but the structure is more complex and the manufacturing cost is higher
Solution Approach 1:
The airflow conversion device combines the dust blowing function with the existing dust collection structure. The first and second flow channels are integrated into a single device that attaches to the original air outlet, avoiding the need for separate blowing equipment or extended ductwork.
Solution Approach 2:
The airflow conversion device enables the dust collector to perform both dust collection and dust blowing functions using the same motor and basic structure. The device can be rotated 180 degrees to switch between suction and blowing modes, providing multi-functionality without additional motors or complex mechanisms.
3Device complexity
If the original dust collecting air duct is used for blowing air, then the structure is simple, but the blown air contains dust and secondary pollution is caused
Solution Approach 1:
The device segments the airflow paths into distinct first and second flow channels that are physically separated. This prevents dust-laden air from the collection channel from mixing with the clean air in the blowing channel, eliminating secondary pollution while maintaining structural simplicity.
Solution Approach 2:
The impeller structure extracts and redirects only the clean air portion of the airflow. By positioning the impeller to draw air through the first flow channel and expel it through the second flow channel in the opposite direction, the system separates clean blowing air from dust-containing collection air.
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
The airflow conversion device effectively prevents secondary pollution by isolating the airflow directions and reduces motor heating, thereby extending its service life and simplifying the equipment structure while maintaining functionality.
Implementation Method 1
when driving airflow is provided to one of the first flow channel and the second flow channel, the driving airflow makes the impeller structure to rotate. Under an action of the impeller structure, the other one of the first flow channel and the second flow channel generates airflow in an opposite direction from the driving airflow.
Data Source
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AI summary
An airflow conversion device and a dust collector including the same are provided. The airflow conversion device includes a first portion (100), a second portion (200) and an impeller structure (300). A first flow channel is formed in the first portion (100). A second flow channel is formed in the second portion (200). The impeller structure (300) is configured as: when driving airflow is provided to one of the first flow channel and the second flow channel, the driving airflow makes the impeller structure (300) to rotate. Under an action of the impeller structure (300), the other one of the first flow channel and the second flow channel generates airflow in an opposite direction from the driving airflow. The airflow conversion device provided by the present invention is provided with the first flow channel and the second flow channel, and enables one of the flow channels to generate airflow in the opposite direction from the driving airflow provided to the other flow channel by means of the impeller structure (300). The airflow conversion device is applied to air suction or air blowing equipment, so that the equipment has plentiful functions without changing the structure of the equipment.