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A fan and its collector

A current collector and body technology, applied in the field of current collectors, can solve the problems of noise elimination, large fan noise, etc., and achieve the effects of reducing impact loss, reducing incoming flow turbulence, and reducing wake loss

Active Publication Date: 2021-06-04
FANS TECH ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Part of the noise generated by the impeller comes from the turbulent flow of the inlet airflow. The current collector in the prior art cannot eliminate the noise generated by the turbulent flow of the incoming flow, resulting in excessive fan noise.

Method used

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  • A fan and its collector
  • A fan and its collector
  • A fan and its collector

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Please refer to Figure 1 to Figure 4 , figure 1 A schematic structural view of the current collector provided by the present invention; figure 2 A top view of the current collector provided by the present...

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Abstract

The invention discloses a collector, which comprises a collector body. The collector body includes an inlet section, an outlet section and a transition section. The side walls of the transition section and the outlet section have corrugated protrusions for reducing the noise of the inlet airflow. . The side wall of the current collector provided by the present invention has corrugated protrusions. The turbulence generated in the incoming flow will exert fluctuating pressure on the side wall of the collector, thereby generating aerodynamic noise. Since the side wall of the collector has corrugated protrusions, on the one hand, the corrugated protrusions on the side wall of the collector will The energy of the incoming turbulent noise is evenly distributed to different frequencies, thereby reducing the sound pressure level of the noise generated by the incoming turbulent flow. On the other hand, the corrugated side wall has a certain degree of scalability. It will produce tiny elastic deformation, which will absorb the energy of sound pressure and reduce the noise level. The invention also discloses a blower fan comprising the current collector, which has low noise and high efficiency.

Description

technical field [0001] The invention relates to the technical field of fluid machinery, in particular to a current collector. The present invention also relates to a fan comprising the above collector. Background technique [0002] The collector is an important auxiliary part of the fan. It is usually set at the inlet of the impeller. It has a flow channel with a tapered diameter in the center, which accelerates the airflow in the flow channel, and then establishes a uniform velocity field and pressure field before the fan inlet. To reduce flow loss and improve fan efficiency. [0003] Part of the noise generated by the impeller comes from the incoming turbulent flow of the inlet airflow, and the current collector in the prior art cannot eliminate the noise generated by the incoming turbulent flow, resulting in excessive noise of the fan. [0004] Therefore, how to reduce the noise generated by the incoming turbulent flow is a technical problem to be solved by those skille...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D29/44F04D25/08
CPCF04D25/08F04D29/441F04D29/663F04D29/667
Inventor 李帅领陈宗华
Owner FANS TECH ELECTRIC CO LTD
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