Fan head and cooling fan

A fan and air duct technology, applied in the field of fan heads and cooling fans, can solve the problems of low air volume and wind speed of cooling fans, achieve the effect of increasing the air intake area, good wind speed performance, and increasing air volume

Inactive Publication Date: 2022-03-18
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low air volume and wind speed of the cooling fan in the prior art, thereby providing a fan head and a cooling fan with better air volume and wind speed performance.

Method used

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  • Fan head and cooling fan
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The working principle of the cooling fan is to use water to soak the wet curtain, and the wind passes through the wet curtain, and then uses the principle of water evaporation on the wet curtain to absorb heat, thereby reducing the temperature of the wind, and then achieving the purpose of reducing the indoor temperature.

[0052] In the prior art, the air flow of the axial fan blade is uneven when it enters the wind, and the uneven air flow collides with each other when passing through the fan blade to generate wind resistance, which reduces the air volume, wind speed and other performances. Due to the slow passage of the internal air flow of the fan, the water cooling evaporation of the wet curtain is low and the temperature is lowered. no significant effect.

[0053] Therefore, this embodiment provides a fan head.

[0054] In one embodiment, as Figure 1 to Figure 15 As shown, the fan head includes an air intake grille structure 1 and an air duct assembly. Wherein,...

Embodiment 2

[0075] This embodiment provides a cooling fan, including the fan head provided in the above embodiments.

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PUM

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Abstract

The invention relates to the technical field of fans, in particular to a fan head and a cooling fan, and the fan head comprises an air inlet grille structure which is hemispherical and comprises a plurality of arc-shaped ribs distributed in a radial shape; the air duct assembly comprises an air duct, a main motor arranged in the air duct and fan blades connected with the main motor, and the fan blades comprise a plurality of blades; on a projection plane perpendicular to the axis of the main motor, the included angle between the tangent line, at the front edge of the blade, of the intersection point of the front edge of the blade and the arc-shaped rib and the tangent line, at the arc-shaped rib, of the intersection point of the front edge of the blade and the arc-shaped rib is alpha, and alpha is gradually reduced from the root of the blade to the end of the blade.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a fan head and a cooling fan. Background technique [0002] The working principle of the cooling fan is to use water to soak the wet curtain, and the wind passes through the wet curtain, and then uses the principle of water evaporation on the wet curtain to absorb heat, thereby reducing the temperature of the wind, and then achieving the purpose of reducing the indoor temperature. [0003] In the prior art, the air flow of the axial fan blade is uneven when it enters the wind, and the uneven air flow collides with each other when passing through the fan blade to generate wind resistance, which reduces the air volume, wind speed and other performances. Due to the slow passage of the internal air flow of the fan, the water cooling evaporation of the wet curtain is low and the temperature is lowered. no significant effect. Contents of the invention [0004] Therefore, the technical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F13/00F24F13/08F24F13/32F04D25/10F04D29/38F04D29/54
CPCF24F5/0035F24F13/00F24F13/32F24F13/082F04D25/105F04D29/384F04D29/541Y02B30/54
Inventor 刘哲白建东陈晓冰赵文杰张逸鸿梁刚
Owner GREE ELECTRIC APPLIANCES INC
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