Fan module, main drive module and foldable handheld fan using the same

The design addresses the limitations of foldable handheld fans by incorporating a fan module with a rotating fan blade assembly for improved airflow and a main drive module with enhanced battery capacity, along with multi-functional display and lighting capabilities, resulting in better performance and usability.

US20250154959A1Inactive Publication Date: 2025-05-15TAN XUEGANG +1
4 Cites 5 Cited by

Patent Information

Application Number
US18/663792
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2023-11-14
Filing Date
2024-05-14
Publication Date
2025-05-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Foldable handheld fans in existing technologies face challenges such as thin, flexible fan blades that cannot generate strong airflow, poor airflow channel design leading to turbulence, limited multi-functionality, and irrational mechanical structures in the main drive module that compromise miniaturization and performance.

Method used

The solution involves a fan module with a motor shell assembly, a fan blade assembly, and a motor where the fan blade assembly is sleeved on the motor's rotating shaft, allowing for multi-angle air blowing and minimizing obstruction. The main drive module features a compact shell assembly with a step portion for expanded accommodation of the circuit board and battery, enhancing battery capacity and endurance. Additionally, the fan module incorporates a functional module with display and lighting functions.

Benefits of technology

This design achieves improved hydrodynamic performance by allowing multi-angle air blowing and reducing noise, optimizes multi-functionality with display and lighting capabilities, and enhances battery life through efficient use of space in the main drive module.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention relates to the technical field of small household electrical appliances and discloses a fan module, a main drive module and a foldable handheld fan using the same, wherein the fan module comprises a motor shell assembly, a fan blade assembly and a motor; and the motor is accommodated in the motor shell assembly, a rotating shaft of the motor penetrates from the motor shell assembly, and the fan blade assembly is sleeved on the rotating shaft of the motor, so that the motor drives the fan blade assembly to rotate, and a low-noise air inlet space is formed between the fan blade assembly and the motor shell assembly.
Need to check novelty before this filing date? Find Prior Art