Fan

A technology of fans and casings, applied in the field of fans

Pending Publication Date: 2019-04-09
FOSHAN CITY NANHAI POPULA FAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: need a kind of blower fan, can reduce energy consumption, improve air outlet efficiency, and reduce the noise generated during operation

Method used

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Embodiment Construction

[0020] In the following, the concept, specific structure and technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and drawings to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work belong to The scope of protection of the present invention. In addition, all the connection relations mentioned in the text do not simply refer to the direct connection of the components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not confli...

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Abstract

The invention discloses a fan comprising a casing. One end face of the casing is provided with a motor, and the other end face of the casing is provided with an air inlet which is internally providedwith an air inlet tube; the peripheral surface of the casing is provided with an air outlet, and the casing is internally provided with an impeller; the impeller comprises a baseplate, blades and a front disk, and an air outlet cavity is formed between the baseplate and the front disk; the air inlet communicates with the air outlet, and the blades are arc-shaped, and the arc centers of the bladesare in the baseplate; the proximal ends of the blades are inlet angles, and the distal ends of the blades are outlet angles; and a line connecting the outlet angles and the circle center of the baseplate is a distal radius. According to the fan, the optimal structural design of the blades on the fan is provided, and the air outlet efficiency of the fan is improved by adopting the air inlet tube and the front disk; and the overall power consumption is reduced, and the operation is more steady and smoother.

Description

Technical field [0001] The invention relates to a fan. Background technique [0002] Most of the air inlets of traditional fans adopt conical and small arc structures. The fluidity and airflow resistance when entering the air are large, which generates flow eddy noise of airflow. The front disc of the fan also adopts conical and small arc structures. The blades are small arc-shaped and short flow passages, the opportunity for gas energization is small, the air output is small, and the straight or conical blades used increase the air flow resistance, and the backward inclined blades are prone to "surging" phenomenon, which increases The noise during the operation of the fan has poor structural stability, and requires the use of a larger motor, which increases the power consumption. Summary of the invention [0003] The technical problem to be solved by the present invention is: a fan is needed, which can reduce energy consumption, improve wind efficiency, and reduce noise generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66
CPCF04D29/281F04D29/30F04D29/663F04D29/667
Inventor 唐育萍徐绍斌
Owner FOSHAN CITY NANHAI POPULA FAN
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