Electric dust blower and modular assembly method thereof
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Solution Overview
Problem
Conventional dust blowers suffer from poor handheld stability due to unreasonably positioned major components, complex and inefficient assembly processes, and high noise levels during use.
Innovation Solution
The electric dust blower features a modular design with a shell, control panel, battery module, fan, and air outlet nozzles, where the battery is positioned at the lower portion and the fan near the air inlet, aligning the center of gravity with the handle for stability, and includes vibration-damping and sound-absorbing components to reduce noise, with plug-in connections replacing welding for assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the motor and battery are positioned in conventional locations, then the assembly process is simplified, but the center of gravity does not coincide with the handheld position, causing poor stability
Solution Approach 1:
The device is divided into modular components (motor module, battery module, handle assembly, housing) that can be independently positioned and assembled. This segmentation allows the motor and battery to be placed in optimized locations for center of gravity balance while maintaining assembly simplicity through standardized interfaces.
2Reliability
If welding operations are used for connecting electrical components, then connection reliability is improved, but assembly complexity and time increase
Solution Approach 1:
Welding operations are replaced with plug-in electrical connectors and snap-fit mechanical interfaces. This substitution maintains reliable electrical connections while dramatically simplifying the assembly process, allowing components to be connected and disconnected without specialized welding equipment or techniques.
Solution Approach 2:
The electrical system is segmented into modular modules with standardized connector interfaces. Each module (motor, battery, control circuitry) has pre-attached connectors that mate with corresponding receptacles in the housing, eliminating the need for field welding while ensuring reliable electrical connections.
3Productivity
If the fan generates high-speed air flow for dust removal, then cleaning effectiveness is improved, but noise level increases
Solution Approach 1:
Flexible sound-absorbing materials and vibration-damping films are incorporated into the housing and fan assembly. These flexible elements absorb vibrations from the high-speed fan and dampen noise from air flow, allowing the fan to operate at high speeds for effective dust removal while reducing the transmitted noise to acceptable levels.
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 design enhances handheld stability, simplifies assembly, and significantly reduces noise, making the dust blower more convenient and efficient to use.
Implementation Method 1
The air guide front housing is wrapped with an anti-vibration sponge that is clamped between an outer wall of the air guide front housing and an inner wall of the air chamber
Implementation Method 2
A dust blower generates a high-speed air flow through a fan, and blows out the high-speed air flow through a blowing nozzle to generate powerful and accurate wind
Data Source
AI summary
The present disclosure discloses an electric dust blower which includes a shell, a control panel, a battery module, a fan, an illumination lamp, and air outlet nozzles, where the shell includes two half shells capable of being spliced together left and right; the battery module is disposed at a lower portion of a mounting chamber; the fan is disposed at a rear portion of an air chamber and is close to an air inlet; the illumination lamp is mounted in a mounting hole and exposed out of a front end face of a main body; and the air outlet nozzles are detachably mounted at and connected to an air outlet.