Detachable Air Filter Assembly for High-Intake Air Blowers
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Solution Overview
Problem
Existing air blowing devices have a small air inlet area, leading to reduced air intake efficiency and difficulty in cleaning accumulated foreign particles from the integrated air inlet.
Innovation Solution
The air blowing device features a spaced mounting and air duct portion defining an opening space with a detachable air filter that increases air intake and prevents foreign particle entry, while allowing easy filter replacement and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the air inlet is integrated in the housing, then the device structure is simple, but the air inlet area is small and foreign particles accumulate hard to clean
Solution Approach 1:
The air inlet is segmented from the housing by introducing a detachable air filter assembly that can be removed independently. The air filter assembly includes a filter body with an air inlet opening that is spatially separated from the housing, allowing the air inlet area to be enlarged while maintaining structural simplicity through modular design.
Solution Approach 2:
The air filter assembly is extracted as a separate, detachable component from the housing. This extraction allows the air inlet area to be increased without complicating the housing structure, and enables easy removal and cleaning of the filter assembly without disassembling the entire device.
2Productivity
If the air inlet area is enlarged, then air intake efficiency is improved, but foreign particles can enter and accumulate more easily
Solution Approach 1:
An air filter is introduced as an intermediary component between the enlarged air inlet and the housing interior. The filter body with its filtering layer allows air to pass through while blocking foreign particles, thus enabling enlarged air intake without compromising protection against harmful particles.
Solution Approach 2:
The air filter assembly provides localized filtering functionality at the air inlet opening. The filtering layer is positioned specifically at the air inlet area where foreign particles would otherwise enter, providing targeted protection while allowing maximum air intake through the enlarged opening.
3Device complexity
If the air filter is integrated in the housing, then the device structure is simple, but the filter is hard to remove and clean
Solution Approach 1:
The filter assembly is segmented as a detachable component with a separate fixing structure that allows easy removal. The fixing structure includes connection portions that can be quickly disconnected, enabling users to remove and clean the filter without complex disassembly procedures.
Solution Approach 2:
The filter assembly transitions from a static integrated state to a dynamic detachable state. The fixing structure allows the filter to be easily removed and reinstalled, providing flexibility for maintenance while maintaining structural simplicity through a straightforward connection and disconnection mechanism.
Data Source
AI summary
An air blowing device, including an air duct portion, a motor assembly arranged inside the air duct portion, a fan assembly driven by the motor assembly, a mounting portion connected to a rear end of the air duct portion, and a connecting portion connecting the air duct portion with the mounting portion. The mounting portion and the air duct portion are spaced apart from each other and cooperatively define an opening space. The air blowing device further includes an air filter that is received in and completely fills the opening space to prevent foreign particles from entering an interior of the air duct portion, without sacrificing the amount of air intaken into the air blowing device, and thus the service life of the air blowing device may be extended. Due to a detachable structure, the air filter can be conveniently removed and cleaned after being used for a long time.