Portable Fan With Replaceable Handheld Battery Module
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Solution Overview
Problem
Portable fans face challenges with battery replacement difficulty and reduced lifespan due to complex assembly and maintenance issues.
Innovation Solution
A portable fan design featuring a modular handheld portion connected to an airflow portion via a fixing member, allowing easy replacement and repair of the handheld portion, including a three-phase high-speed motor for improved battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the portable fan is assembled by splicing a front shell and a rear shell, then the structural integrity is maintained, but the battery replacement and maintenance become difficult
Solution Approach 1:
The portable fan is divided into separate modular components: a handheld portion containing the battery and control elements, and an airflow portion containing the fan blades and motor. These portions are connected through a fixing member that allows for easy detachment and reattachment, enabling independent replacement of the handheld portion for battery maintenance while preserving overall structural integrity.
2Volume of moving object
If the handheld portion and airflow portion are tightly integrated, then the device compactness is improved, but the maintenance and battery replacement become difficult
Solution Approach 1:
The connection between the handheld portion and airflow portion is designed to be dynamically changeable - firmly connected during normal operation to maintain compactness, but easily separable when maintenance is needed. The fixing member enables this dynamic state change, allowing the device to transition between a compact integrated form and a separable maintenance-friendly form.
3Device complexity
If the battery is permanently installed in the handheld portion, then the device simplicity is maintained, but the battery life is shortened due to inability to replace
Solution Approach 1:
The handheld portion containing the battery is segmented as a replaceable module. This segmentation maintains simplicity during normal use while enabling battery replacement when depleted, effectively extending the overall operational lifespan of the device without significantly increasing complexity.
Solution Approach 2:
The design enables discarding of the depleted handheld portion and recovering the functional airflow portion. The replaceable handheld module can be discarded after battery depletion while the main airflow portion is retained and can be paired with a new handheld portion, extending the device's useful life.
Data Source
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AI summary
A portable fan, the portable fan includes: an airflow portion and a handheld portion, the handheld portion is provided with a first connecting member, the airflow portion is provided with a second connecting member, the airflow portion and the handheld portion are connected to each other via a fixing member, the fixing member passes through the first connecting member and the second connecting member to connect the airflow portion with the handheld portion, a part of the handheld portion is embedded in the airflow portion, or a part of the airflow portion is embedded in the handheld portion. When the handheld portion malfunctions or the battery inside the handheld portion is out of power, the handheld portion alone may be replaced, the replaced handheld portion may be repaired or charged, and a properly-operating handheld portion or a handheld portion having sufficient power may be assembled, such that the battery life is improved.