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Blower radiating fan with adding air inflow

A blasting and cooling fan technology, which is applied to non-variable-capacity pumps, components of pumping devices for elastic fluids, pump devices, etc. and noise, airflow rebound and other issues, to achieve the effect of improving the overall performance, increasing the overall air intake, and increasing the output air pressure

Inactive Publication Date: 2008-07-30
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 radiating fan with adding air inflow
  • Blower radiating fan with adding air inflow
  • Blower radiating fan with adding air inflow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 2 As shown in FIG. 3, the present invention includes a housing base 1, at least one cover plate 2, a main fan wheel 3, an electric motor 5, at least one sub fan wheel 4, and an airflow turning area 30.

[0054] The housing 1 is provided with an accommodation space 11 for accommodating the main fan wheel 3 and a side air outlet 12. The side air outlet 12 is communicated with the containing space 11 to output lateral centrifugal airflow.

[0055] An example of the cover plate 2 is arranged on the housing base 1, and an air inlet 21 is opened. Preferably, the air inlet 21 can extend axially to form a ring wall 22.

[0056] The main fan wheel 3 is provided with a main hub 31, a ring plate 32 and several blower fan blades 33.

[0057] The main hub 31 is internally combined with the electric motor 5, and the outside thereof is provided with an extension shaft 34 having the same rotation axis as the electric motor 5 and combined with the sub-fan 4, a first flow guidi...

Embodiment 2

[0066] As shown in Fig. 4, the present invention includes a housing 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 turning area 30a.

[0067] The housing 1 is provided with an accommodation space 11 and a side air outlet 12 for accommodating the main fan wheel 3a. The side air outlet 12 is communicated with the containing space 11 for outputting lateral centrifugal airflow.

[0068] The cover plate 2a is arranged on one side of the housing base 1 and defines an air inlet 21.

[0069] The main fan wheel 3a is provided with a main hub 31a, a ring plate 32 and several blower fan blades 33.

[0070] The main hub 31a is internally integrated with the electric motor 5, the top of which forms a reduced diameter part 37, and the outside of which is provided with a first flow guide surface 35.

[0071] The first air guide surface 35 is an arc-shaped surface, which is formed at the connection between the main hub 31 a and the ri...

Embodiment 3

[0078] As shown in Fig. 5, the present invention includes a housing 1, at least one cover plate 2b, a main fan wheel 3b, an electric motor 5, a sub-motor 5', at least one sub fan wheel 4b, and an airflow turning area 30.

[0079] The housing 1 is provided with an accommodation space 11 and a side air outlet 12 for accommodating the main fan wheel 3b. The side air outlet 12 is communicated with the containing space 11 to output lateral centrifugal airflow.

[0080] The cover plate 2b is arranged on one side of the housing base 1 and defines an air inlet 21. Preferably, the air inlet 21 may extend axially to form a ring wall 22, and extend inside the air inlet 21 to form a base 23 for the sub-motor 5'to be combined with a plurality of ribs 24.

[0081] The main fan wheel 3b is provided with a main hub 31b, a ring plate 32 and several blower blades 33.

[0082] The electric motor 5 is integrated inside the main hub 31b, and a first flow guide surface 35 and a second flow guide surfac...

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PUM

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Abstract

A blowing-type heat dissipating fan able to increase air input and pressure of output air is composed of a fixing casing, at least one cover plate, and primary fan wheel with integrated electric motor, hub and several blades. It features that said cover plate arranged at one side of said fixing casing has an air inlet, in which at least one secondary fan wheel with hub and several blades is installed.

Description

Technical field [0001] The invention belongs to a heat dissipation device, in particular to a blast type heat dissipation fan that can increase the air intake. Background technique [0002] Such as figure 1 As shown, the conventional blast-type cooling fan includes a housing base 1f, a cover plate 2f and a main fan wheel 3f. [0003] The housing 1f is provided with an accommodation space 11f and a side air outlet 12f. [0004] The cover plate 2f is properly combined with the housing base 1f and is provided with an air inlet 21f. [0005] The main fan wheel 3f is rotatably combined in the housing space 11f of the housing base 1f, and is provided with a hub 31f, a ring plate 32f and several blower fan blades 33f. [0006] During operation, the blower fan blade 33f of the main fan wheel 3f rotates, and the axial airflow is sucked in from the air inlet 21f of the cover plate 2f. Then, the blower fan blade 33f drives the axial airflow to output through the side air outlet 12f of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/16F04D29/66
Inventor 洪银树吕有原
Owner SUNONWEALTH ELECTRIC MACHINE IND