一种离心风机结构的设计方法

By designing the centrifugal fan structure, separating it into a first air path and a second air path, and setting ventilation holes and air guide plates, the problems of insufficient wind speed and uneven wind pressure in the central area were solved, and the working efficiency of the fan was improved.

CN121345793BActive Publication Date: 2026-07-17SHANXI ELECTRIC MOTOR MANUFACTURING CO LTD
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Patent Information

Application Number
CN202511515388.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-07-17
Estimated Expiration
2045-10-22

AI Technical Summary

Technical Problem

The existing centrifugal fans suffer from low working efficiency due to insufficient wind speed in the central area and unreasonable distribution of wind pressure and resistance.

Method used

Design a centrifugal fan structure including a fan cavity, an air inlet, an air outlet, a drive motor, fan blades, and a guide plate. By separating the airflow into a first air path and a second air path, and setting ventilation holes and a guide plate, the airflow and air pressure distribution are optimized.

Benefits of technology

It increases the wind speed in the central area of ​​the centrifugal fan, ensures uniform air pressure distribution, enhances airflow efficiency, and improves the working efficiency of the centrifugal fan.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种离心风机结构的设计方法，属于离心风机技术领域，解决了现有离心风机中心区域风速不足、风压和风阻分配不合理导致工作效率低等技术问题。解决方案为：一种离心风机结构的设计方法，包括如下步骤：1）确定离心风机需要提供的风量；2）确定离心风机第一风路顶部区域的风量Q1和第二风路中部区域的风量Q2；3）确定通风孔的大小及数量；4）规定参数；5）计算第二导风板的宽度b2；6）计算第二导风板底端与风叶中心的距离D2min；7）计算第一导风板顶端与风叶中心的距离D1max、第一导风板底端与风叶中心的距离D1min、第一导风板的宽度b1。与现有技术相比，本发明具有风压和风阻分配均匀、中心区域风速提升、效率高等优点。
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Citation Information

Patent Citations

  • Centrifugal fan blade, centrifugal fan and air conditioner

    CN216642556U

  • Double-air-inlet centrifugal fan blade

    CN219639119U