Clip-On Portable Fan Layout for Compact Airflow Efficiency
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Solution Overview
Problem
Existing portable fans are inconvenient to carry and do not allow users to free their hands for other tasks, and they lack high wind efficiency.
Innovation Solution
A portable fan design with a housing body containing a fan assembly and a power supply assembly offset along a preset direction, allowing for a compact and efficient air path, and clamping devices for secure attachment to external objects, enhancing portability and wind efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the fan volume is reduced to improve portability, then the fan becomes more portable, but the wind efficiency decreases
Solution Approach 1:
The patent repositions the power supply assembly from a stacked arrangement (vertical dimension) to an offset arrangement within the same horizontal plane, utilizing lateral space rather than vertical stacking. This dimensional reorganization allows the fan to maintain a compact volume while providing sufficient space for the power supply assembly without compromising the wind efficiency of the fan assembly.
2Volume of moving object
If the power supply assembly is positioned close to the fan assembly to reduce volume, then the fan is more compact, but the air flow efficiency is compromised
Solution Approach 1:
The power supply assembly is offset from the fan assembly in the lateral direction rather than being positioned directly adjacent in the airflow path. This spatial reorganization in another dimension allows both components to coexist in a compact volume while maintaining adequate air flow efficiency through proper positioning relative to the air inlet and outlet.
3Adaptability or versatility
If clamping devices are added to enable hands-free operation, then the fan becomes more versatile, but the device complexity increases
Solution Approach 1:
The clamping device is designed with a universal clamping mechanism that can attach to various external objects such as bags, belts, or clothing. This multi-functional attachment capability allows the fan to be used hands-free in multiple scenarios without requiring different specialized components for each attachment type, thereby reducing overall device complexity while enhancing versatility.
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 achieves higher air-flow efficiency, stronger wind power, and better cooling effects while allowing hands-free operation, improving user convenience and portability.
Implementation Method 1
the fan assembly is configured to drive an airflow to flow from the air inlet to the air outlet
Data Source
AI summary
A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an airflow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.