Axial Fan

A technology of axial flow fan and wind wheel, which is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc. It can solve the problems of short contact length between wind and blade, low efficiency, and small flow, so as to increase the effective contact length, Improve efficiency and prevent side air leakage

Inactive Publication Date: 2016-01-27
NINGBO LIONBALL VENTILATOR
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

With this structure, when the wind rotor rotates, the wind is easy to leak from the outer edge of the blade and leak to the side, resulting in a small wind flow of the axial flow fan and low efficiency, and due to the front edge, rear edge and The outer edges are all streamlined, so when the wind flows out from the rear edge of the blade, the contact length between the wind and the blade is shorter and the noise is louder

Method used

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:

[0016] like figure 1 , figure 2 , image 3 As shown: the present invention provides an axial flow fan, which includes a motor 1, a wind wheel 2 and a net cover 3, the wind wheel 2 is installed on the outer rotor of the motor 1, and the middle of the wind wheel 2 in this embodiment passes through an interference Press fit on the outer rotor of the motor 1, the wind wheel 2 rotates with the rotation of the outer rotor, the net cover 3 is installed on the end cover of the motor 1, the wind wheel 2 is provided with blades 4, the A baffle plate 4.1 is provided at the front outer edge 4.3 of each blade 4, and the rear edge 4.2 of each blade 4 is sawtooth-shaped.

[0017] Said that the rear edge 4.2 of each blade 4 is zigzag means that the rear edge 4.2 of each blade 4 is provided with several continuous triangular protrusions.

[0018] The above-mentione...

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PUM

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Abstract

The invention provides an axial flow fan which comprises a motor and a wind wheel. The wind wheel is mounted on an outer rotor of the motor, blades are arranged on the wind wheel, a baffle is arranged at the outer edge of the front surface of each blade, and the rear edge of each blade is saw-toothed. The axial flow fan with the structure is high in efficiency and low in noise.

Description

Technical field: [0001] The invention relates to the technical field of ventilation, in particular to an axial flow fan used in ventilation equipment. Background technique: [0002] Axial flow fans generally include a wind wheel and a motor. The middle part of the wind wheel is press-fitted on the outer rotor of the motor. The outer rotor of the motor rotates to drive the wind wheel to rotate. The gas is agitated by the blades in the wind wheel to move in the axial direction. In order to prevent the wind wheel from injuring people when the wind wheel rotates, a mesh cover is generally provided to wrap the wind wheel to prevent people from touching the wind blades on the wind wheel. [0003] The fan blades on the axial flow fan in the prior art are generally made of iron plates with uniform thickness, and generally have a smooth straight line or curved structure. With this structure, when the wind rotor rotates, the wind is easy to leak from the outer edge of the blade and l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/38
Inventor 袁新武张建洪励美娟黄诗涌
Owner NINGBO LIONBALL VENTILATOR
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