一种室外机四叶轴流风扇
By adopting a flanged and guide groove structure in the four-blade axial flow fan of the outdoor unit, the problems of high wind resistance and high noise are solved, thereby increasing air volume and reducing noise, and improving the energy efficiency and stability of the fan.
CN224515472UActive Publication Date: 2026-07-17MITSUBISHI HEAVY IND HAIER QINGDAO AIR CONDITIONERS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MITSUBISHI HEAVY IND HAIER QINGDAO AIR CONDITIONERS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing axial fans suffer from high air resistance and noise, resulting in energy waste and reduced efficiency.
Method used
Design an outdoor unit four-blade axial flow fan with a flange and guide groove structure. The blade wrap angle is 73-81°. The flange starts from 20-39° and gradually increases in width. The guide groove is serrated. The blade is hollowed out and the trailing edge of the blade tip is thickened. Support ribs are set to improve strength.
Benefits of technology
The air volume is increased by more than 10%, the turbulent kinetic energy value is reduced to below 15, noise is significantly reduced, and the efficiency and stability of the fan are improved.
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Figure CN224515472U_ABST
Abstract
本实用新型涉及一种室外机四叶轴流风扇，包括轮毂，和四个沿轮毂圆周周向排列的叶片，每片叶片上设有翻边、多个导流槽，每片叶片包角β为73‑81°，翻边始于包角θ为20‑39°位置处叶片的外缘，止于包角β为73‑81°位置处叶片的外缘，翻边从起点到终点位置宽度逐渐增大；以轮毂轴心为圆心，连接每片所述叶片的首个导流槽作圆，半径记为R1，R1取值为117.5‑125mm；以轮毂轴心为圆心，连接每片叶片的最后一个导流槽作圆，半径记为R2，R2取值为170‑177.5mm。该风扇的风量可达116m3 / min左右，比目前业界能效同级产品风量高约10%以上，测试叶顶湍动能值均在15以下，降噪效果明显。
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