Motor fan blade, motor and electric tool
By designing the motor blades with a turbine blade structure, the problems of large size, low speed and high noise caused by centrifugal impellers are solved, and the high performance, miniaturization and low noise effect of the motor are achieved.
CN223374702UActive Publication Date: 2025-09-23GLOBE (JIANGSU) CO LTD
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Patent Information
- Application Number
- CN202423081531.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Technical Problem
Existing motors use centrifugal impellers, which result in large size, inability to withstand high speeds, low machining precision, and high noise.
Method used
A motor fan blade is designed, which adopts a turbine fan blade structure. The fan blade is thick in the middle and thin at both ends. The angle and size of the fan blade and the fan disk are reasonably designed to make the airflow smooth and improve the blade strength and efficiency.
Benefits of technology
The motor has achieved high performance, miniaturization, lightweight and low noise, and the fan blades are smaller and quieter with the same performance.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a motor fan blade, a motor and an electric tool, the motor fan blade comprises a fan blade disc, the middle of which is provided with a shaft hole; the multiple fan blades are spirally arranged on the fan blade discs in the first direction, the multiple fan blade discs are evenly distributed on the fan blade discs, each fan blade comprises a tail end close to the outer edge of the corresponding fan blade disc and a front end close to the corresponding shaft hole, and in the spiral direction of the fan blades, the tail end of each fan blade is close to the outer edge of the corresponding fan blade disc, and the front end of each fan blade is close to the corresponding shaft hole. And the thickness of the fan blade is gradually increased from the front end and the tail end to the middle. The fan blade is of a structure with the thick middle and the two thin ends, the strength of the blade is improved, the fan blade can bear high rotating speed, the included angle between the tail end of the fan blade and the fan blade disc, the included angle at the air inlet position of the fan blade and the size of the fan blade are reasonably designed, so that a cavity flow field is smoother, efficiency is improved, and under the same performance, the size is smaller, and cost is reduced. The noise is lower, and the purposes of high performance, miniaturization, light weight and low noise of the motor are achieved.
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