Noise absorbing structure of cooling fan

A heat dissipation fan and fan technology, applied to parts of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc., can solve the problems affecting the comfort of cooling fans, pulsating noise, etc., and achieve practicability Strong, reduced airflow, and reduced turbulence

Inactive Publication Date: 2015-04-15
王艺如
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blades of existing heat dissipation fans mostly use smooth surfaces. When the fan rotates at high speed, the airflow is easy to accumulate between the blades and the frame of the fan, forming pulsating noise, which affects the comfort of the heat dissipation fan.

Method used

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  • Noise absorbing structure of cooling fan
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Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0015] The invention provides a sound-absorbing structure of a cooling fan.

[0016] Such as Figure 1 to Figure 2 As shown, the sound-absorbing structure 1 of the cooling fan of the present invention includes a square fan bracket 2, a driving pivot 3 is arranged at the center of the fan bracket 2, and a blade 4 is formed on the side wall of the driving pivot 3. The vane array, the side edge of the vane 4 is provided with an array of quiet protrusions 5 composed of quiet protrusions 5, and the trailing edge of the vane 4 is respectively provided with a through arc-shaped sound-absorbing arc groove 6.

[0017] The blade 4 is wedge-shaped, and the...

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Abstract

The invention discloses a noise absorbing structure of a cooling fan. The noise absorbing structure of the cooling fan comprises a tetragonal fan bracket, wherein a driving pivot shaft is arranged in the center of the fan bracket; a blade array consisting of blades is arranged on the side wall of the driving pivot shaft; mute projection arrays consisting of mute projections are arranged at the side edges of the blades; and through arched noise absorbing arc grooves are respectively arranged in the tail edges of the blades. The noise absorbing structure of the cooling fan uses the triangular mute projection arrays, the turbulence is largely reduced, and the pulsation noise is reduced; and the airflow casting direction is effectively changed, the air flows flowing back to the center of the fan are reduced, the convection quantity of the air flows is increased, and the cooling efficiency is effectively improved. In addition, the through arched noise absorbing arc grooves in the tail edges of the blades are used for effectively preventing the travel of stream swirls and further improving the convection coming quantity of the air flows. The noise absorbing structure of the cooling fan is simple and high in practicability.

Description

technical field [0001] The invention relates to a computer device, more precisely, to a sound-absorbing structure of a cooling fan. Background technique [0002] A cooling fan is an extremely common active cooling device for computers that uses airflow to reduce the heat on the CPU or other chips. The blades of existing heat dissipation fans mostly have smooth surfaces. When the fan rotates at high speed, the airflow tends to accumulate between the blades and the frame of the fan, resulting in pulsating noise and affecting the comfort of the heat dissipation fan. Contents of the invention [0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing a sound-absorbing structure of a cooling fan. [0004] Above-mentioned technical problem of the present invention is mainly solved by following technical scheme: [0005] A sound-absorbing structure of a cooling fan, the sound-absorbing structure of the cooling fan includes a...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F04D29/66F04D29/38
CPCF04D29/666F04D29/388F05D2240/307
Inventor王艺如
Owner王艺如