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Blower cooling fan for increased air intake

A blower type and heat dissipation fan technology, which is applied to non-variable pumps, parts of pumping devices for elastic fluids, pump devices, etc., can solve the problem that the blowing efficiency of blower fan blades is not as good as expected, and it is easy to generate turbulence And problems such as noise and airflow rebound, to achieve the effect of improving the overall performance, increasing the overall air intake, and increasing the output air pressure

Inactive Publication Date: 2012-02-22
SUNONWEALTH ELECTRIC MACHINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, since the guide fan blade is almost completely attached to the ring plate and far away from the air inlet, the guide fan blade cannot actually effectively suck in a sufficient amount of additional axial airflow from the air inlet of the cover plate
Furthermore, the guide fan blades of the guide fan wheel are closely attached to the ring plate, which also causes the inhaled axial airflow to fail to turn in time and directly impact on the ring plate, causing the airflow to rebound, which is prone to turbulence and noise
In addition, the deflector fan blades are placed close to the blower fan blades, so that part of the blower fan blades is excessively blocked, thus causing the blowing efficiency of the blower fan blades to be lower than expected

Method used

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  • Blower cooling fan for increased air intake
  • Blower cooling fan for increased air intake
  • Blower cooling fan for increased air intake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 2 , image 3As shown, the present invention includes a housing base 1 , at least one cover plate 2 , a main fan wheel 3 , a motor 5 , at least one sub-fan wheel 4 and an airflow diversion section 30 .

[0055] The housing base 1 is provided with an accommodating space 11 for accommodating the main fan wheel 3 and a side air outlet 12 . The side air outlet 12 communicates with the accommodating space 11 for outputting side centrifugal airflow.

[0056] The cover plate 2 covers one side of the housing base 1 and defines an air inlet 21 . The air inlet 21 can preferably extend axially to form a ring wall 22 .

[0057] The main fan wheel 3 is provided with a main hub 31 , a ring plate 32 and several blowing fan blades 33 .

[0058] The main hub 31 is connected with the motor 5 inside, and the extension shaft 34 , the first guide surface 35 and the second guide surface 36 which have the same rotation axis as the motor 5 and combine with the fan wheel 4 ar...

Embodiment 2

[0067] Such as Figure 4 As shown, the present invention includes a housing base 1, at least one cover plate 2a, a main fan wheel 3a, a motor 5, at least one sub-fan wheel 4a and an airflow diversion section 30a.

[0068] The housing base 1 is provided with an accommodating space 11 for accommodating the main fan wheel 3 a and a side air outlet 12 . The side air outlet 12 communicates with the accommodation space 11 for outputting side centrifugal airflow.

[0069] The cover plate 2 a covers one side of the shell base 1 and defines an air inlet 21 .

[0070] The main fan wheel 3a is provided with a main hub 31a, a ring plate 32 and several blowing fan blades 33 .

[0071] The main hub 31a is internally connected with the motor 5 , its top portion forms a reduced-diameter portion 37 , and its exterior is provided with a first guide surface 35 .

[0072] The first guide surface 35 is an arc surface, which is formed at the junction of the main hub 31 a and the ring plate 32 . ...

Embodiment 3

[0079] Such as Figure 5 As shown, the present invention includes a housing base 1, at least one cover plate 2b, a main fan wheel 3b, a motor 5, a sub-motor 5', at least one sub-fan wheel 4b, and an airflow diversion section 30.

[0080] The housing base 1 is provided with an accommodating space 11 for accommodating the main fan wheel 3b and a side air outlet 12 . The side air outlet 12 communicates with the accommodating space 11 for outputting side centrifugal airflow.

[0081] The cover plate 2 b covers one side of the shell base 1 , and defines an air inlet 21 . The air inlet 21 can preferably extend axially to form a ring wall 22, and extend inside the air inlet 21 to form a base 23 and several ribs 24 for coupling the sub-motor 5'.

[0082] The main fan wheel 3b is provided with a main hub 31b, a ring plate 32 and several blowing fan blades 33 .

[0083] The main hub 31b is connected with the motor 5 inside, and the first flow guide surface 35 and the second flow guid...

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PUM

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Abstract

A blower cooling fan that can increase the air intake. In order to provide a cooling device that increases the overall air intake, increases the output wind pressure, reduces noise, and improves the overall performance, the present invention is proposed, which includes a housing base, at least one cover plate, a main fan wheel and a motor; the housing base is provided with a The accommodation space of the main fan wheel and the side air outlet are set; the cover plate is set on the side of the shell seat, and the air inlet is opened; the main fan wheel is equipped with the main hub with the internal motor and the ring is combined with several pieces outside the main hub Blowing fan blades; the air inlet of the cover plate is provided with at least one sub-fan wheel, which is provided with a sub-wheel hub and several axial flow fan blades; the outer peripheral surface of the main fan wheel hub, the blower fan blade and the sub-fan wheel axial flow fan blades are formed Airflow diversion zone.

Description

[0001] (This case is: application date June 24, 2004; application number 200410050012.1 [0002] Name: divisional application for a blower cooling fan that can increase the air intake) technical field [0003] The invention belongs to a heat dissipation device, in particular to a blower type heat dissipation fan capable of increasing air intake. Background technique [0004] Such as figure 1 As shown, a conventional blower cooling fan includes a housing base 1f, a cover plate 2f and a main fan wheel 3f. [0005] The shell seat 1f is provided with a receiving space 11f and a side air outlet 12f. [0006] The cover plate 2f is properly combined with the shell seat 1f, and is provided with an air inlet 21f. [0007] The main fan wheel 3f is rotatably combined in the accommodating space 11f of the housing seat 1f, which is provided with a hub 31f, a ring plate 32f and several blowing fan blades 33f. [0008] During operation, the blowing fan blade 33f of the main fan wheel 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/42
CPCF04D29/281F04D29/30F04D25/166
Inventor 洪银树吕有原
Owner SUNONWEALTH ELECTRIC MACHINE IND