Centrifugal fan blade

A technology of centrifugal fan blades and fan blades, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc. It can solve problems such as complex design and unsuitable use by staff. Achieve stable performance, help ventilation, strong wind effect

Inactive Publication Date: 2016-03-30
CHONGQING SHENGJIN AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of material called PP/PEG can be used for making fans or blowers with good properties such as lightweight weight, durability against damage from external factors like rainwater, snowfall, etc., resisting moisten conditions during use without adding too much weight compared to traditional metal ones. It also prevents fires caused by high temperatures due to its low melting point (<300C) while still being effective at reducing noises generated by rotating parts inside them.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the security measures used with electrical devices such as lamps or generators that require regular inspections during their lifespan. Current methods involve complex designs requiring multiple parts and large spaces around them making it difficult for some individuals who work at different locations to access these components properly without being threatened from accidentally damaging other electronic systems nearby.

Method used

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  • Centrifugal fan blade
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Embodiment

[0017] Example: see Figure 1-2 , a centrifugal fan blade according to the present invention, comprising a centrifugal fan blade body 1, said centrifugal fan blade body 1 including a guide ring 2, an annular blade bottom plate 3, a hub 4 and fan blades 7, said fan blades 7 being arranged on the guide Between the flow ring 2 and the circular leaf base plate 3, a hub 4 is arranged inside the guide ring 2, and a cylindrical plastic shaft hole sleeve 5 is arranged on the hub 4, and around the cylindrical plastic shaft hole sleeve 5 A shaft hole sleeve support member 6 is provided, and the fan blade 7 includes an inner arc surface 8 and an outer arc surface 9 .

[0018] The manufacturing material of the centrifugal fan body 1 is a noise-reducing plastic material, and its main components are renewable polypropylene and polyethylene terephthalate, so as to ensure that the centrifugal fan body 1 has sound absorption, heat and moisture resistance, Stable performance, flame retardant and

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PUM

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Abstract

The invention belongs to the technical field of ventilation equipment and discloses a centrifugal fan blade which comprises a centrifugal fan blade body, wherein the centrifugal fan blade body is composed of a diversion ring, an annular blade bottom plate, a hub and a fan blade; the fan blade is arranged between the diversion ring and the annular blade bottom plate; the hub is arranged in the diversion ring; a cylindrical plastic shaft hole sleeve is arranged on the hub; shaft hole sleeve supporting parts are arranged on the periphery of the cylindrical plastic shaft hole sleeve; and the fan blade is composed of an inner arc surface and an outer arc surface. According to the centrifugal fan blade disclosed by the invention, by using renewable polypropylene and polyethylene terephthalate as the main raw materials of the centrifugal fan blade, the centrifugal fan blade has the characteristics of sound absorption, heat and moisture resistance, stability in performance, flame retardance, fire protection and the like, and the using performance is ensured; with the arrangement of the inner arc surface and the outer arc surface of the fan blade, as the set air inlet angle is not larger than 10 degrees, and the set air outlet angle ranges from 25 degrees to 35 degrees, relative noise reduction is ensured when the centrifugal fan blade works; and in addition, the wind power is large, so that ventilation is facilitated.

Description

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Claims

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Application Information

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Owner CHONGQING SHENGJIN AUTOMOBILE
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