Synchronously-cooled axial flow fan

Abstract

The invention discloses a synchronously-cooled axial flow fan comprising a second chamber, a transition section, a first chamber, multiple air inlet holes, a motor, a wind wheel and an air guide ring. The second chamber, the transition section and the first chamber are formed from one end of a shell to the other end of the shell. The air inlet holes are annularly and evenly distributed in the end face of the other end of the shell. The motor and the wind wheel are coaxially arranged in the second chamber. The air guide ring is an annular plate body. The air guide ring is in an arc shape in the radial direction, and an opening of the arc faces the first chamber. The large ring end of the air guide ring is fixedly arranged on the side wall close to the other end of the shell. The small ring end of the air guide ring extends towards the tail end of the motor. The radial length of the air guide ring is smaller than 1 / 6 of the diameter of the cross section of the second chamber. By means of the synchronously-cooled axial flow fan, the motor of the axial draught fan can be synchronously cooled in real time, it is ensured that the motor is kept at the normal working condition temperature all the time, and the service life of the axial draught fan is prolonged.

Description

technical field [0001] The invention relates to an axial flow fan for synchronous heat dissipation. Background technique [0002] Axial flow fans generally include a wind wheel and a motor. The middle part of the wind wheel is press-fitted on the outer rotor of the motor. The outer rotor of the motor rotates to drive the wind wheel to rotate. The gas is agitated by the blades in the wind wheel to move in the axial direction. In order to prevent the wind wheel from injuring people when the wind wheel rotates, a mesh cover is generally provided to wrap the wind wheel to prevent people from touching the wind blades on the wind wheel. [0003] In the prior art, the motor on the axial flow fan is arranged on the air inlet duct of the axial flow fan, and the cross-sectional diameter of the motor is equivalent to the cross-sectional diameter of the hub of the wind wheel, so that the wind on the air duct basically passes around the motor, and the There is no good heat dissipation e...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the motor on the axial flow fan is arranged on the air inlet duct of the axial flow fan, and the cross-sectional diameter of the motor is equivalent to the cross-sectional diameter of the hub of the wind wheel, so that the wind on the air duct basically passes around the motor, and the There is no good heat dissipation effect on the motor, which directly affects the duration and service life of the axial flow fan for one use

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