Fan frame capable of reducing noise

Abstract

A fan frame capable of reducing noise comprises an outer frame body surrounding an inner space, a shaft tube base located in the inner space, a plurality of static blades extending from the outer wallface of the shaft tube base to the outer frame body, and a plurality of partition plates. Each partition plate is connected with at least one of the static blades and the inner wall face of the outerframe body. The internal space is provided with an air inlet and an air outlet. Each static blade is arranged on the shaft tube seat along the flowing direction far away from the bottom of the shafttube seat. Each partition plate is matched with the outer frame body to define a partition space communicating with the inner space; due to the design of the separation space, the effect of noise reduction can be achieved, a cavity does not need to be formed by increasing the size of the outer frame body, and therefore, the outer frame body can be designed to be light and thin, the windward area can be reduced, and noise at the air inlet and the air outlet can be restrained at the same time.

Description

technical field [0001] The invention relates to a frame, in particular to a fan frame. Background technique [0002] With the continuous advancement of technology, the size of integrated circuits and electronic components is becoming more and more miniaturized, so they can be configured with higher density, resulting in powerful computing power and functionality, but also require good heat dissipation to maintain normal work A common heat dissipation fan is a heat dissipation device that drives airflow or fluid through rotating fan blades to achieve a good air cooling effect. General heat dissipation fans are often accompanied by unpleasant noises when they are running. Noise generated at the air inlet and outlet due to turbulence or flow field disturbance. The main cause of the former is the overall vibration caused by the fan blades, which causes the fan frame to collide with the environment where it is installed and make noise. Usually, the noise can be reduced by insta...

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Problems solved by technology

[0004] However, in order to form the cavity 125 inside the outer frame body 12, the design of increasing the area of ​​the top wall portion 121 is adopted, which increases the windward area of ​​the outer frame body 12 toward the air inlet 13, On the contrary, the noise at the air inlet 13 is increased; moreover, the thick outer frame shape of the top wall portion 121 of the outer frame body 12 does not conform to the current trend of pursuing thin and light fan frames without taking up space; After 126 enter the same chamber 125, they are easy to collide with each other due to the opposite directions, and finally resonate in the chamber 125, which instead causes the noise to increase. Therefore, the fan frame 1 still needs to be improved in terms of noise reduction

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