Folding Handheld Fan Wireless Display to Prevent Wire Wear
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Solution Overview
Problem
Existing folding rotatable handheld fans face issues with wire wear and entanglement due to non-directional rotation, leading to premature failure and reduced service life as the wire connecting the display module to the battery becomes entangled and pulls off the welding points.
Innovation Solution
The display module is integrated into the rotating handle with the battery in the same shell, and the display is positioned within the rotating ring, allowing the handle and ring to rotate together, preventing wire entanglement and wear, while the fan blades are secured by positioning slots to prevent them from being dislodged during storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotating handle is rotated multiple times to fold the handheld fan, then the fan can be shortened for portability, but the wire connecting the display module to the battery becomes worn and entangled, leading to welding point failure
Solution Approach 1:
The patent replaces the mechanical wire connection system with a wireless communication system. The display module and battery are connected via wireless communication (e.g., Bluetooth or other wireless protocols) instead of physical wires, eliminating wire wear and entanglement issues while maintaining the folding functionality of the rotating handle.
2Adaptability or versatility
If the rotating handle allows non-directional rotation for flexible folding, then the fan can be easily stored, but the wire becomes entangled and pulls off welding points over time
Solution Approach 1:
The patent eliminates the mechanical wire connection by implementing wireless communication between the display module and battery. This allows the rotating handle to maintain its non-directional rotation flexibility for easy storage while the wireless connection prevents wire entanglement and welding point failure.
3Ease of manufacture
If the display module is connected to the battery through a wire passing through the rotating shaft, then the connection is established, but the wire suffers from wear and entanglement during multiple rotations
Solution Approach 1:
The patent replaces the wire-based mechanical connection with a wireless communication system. The display module and battery communicate wirelessly, eliminating the wire that causes wear and entanglement during rotations, thereby significantly extending the service life of the handheld fan while maintaining ease of manufacture through standardized wireless modules.
Data Source
AI summary
A folding rotatable handheld fan includes a hand grip, a rotating handle, a fan assembly and a battery. The fan assembly is mounted at an end portion of the rotating handle. An end portion of the rotating handle away from the fan assembly is connected with a rotating ring. A display module is arranged in an end portion of the rotating handle close to the rotating ring. The display module includes a circuit board and a display. The circuit board is mounted in the rotating handle. The display is connected to a side surface of the circuit board. The display is threaded out of the rotating handle. The display extends into the rotating ring. The rotating ring is rotatably connected to an end portion of the hand grip. An end portion of the rotating ring away from the rotating handle passes through the hand grip.