CN100445573C

CN100445573C - Fan framework

Info

Publication number: CN100445573C
Application number: CNB2005100889524A
Authority: CN
Inventors: 张柏灏; 严润杰; 周初宪
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2005-08-03
Filing date: 2005-08-03
Publication date: 2008-12-24
Anticipated expiration: 2025-08-03
Also published as: CN1908448A

Abstract

The invention relates to a fan frame, which comprises several guiders connected via at least one rib, wherein the guiders extend in curvature and are distributed not as concentrically, with one open to mount one fan blade wheel; said fan blade wheel has several blades whose ends have different distances with the guiders, to reduce the secondary flow between blades and guiders.

Description

Fan frame

Technical field

The present invention relates to a kind of fan frame, especially finger can reduce blade and deflector between the fan frame of secondary flow phenomenon.

Background technique

The usefulness of the general Chang Zuowei heat radiation of fan, and be to promote the air inflow that radiating effect must manage to increase fan, so a kind of fan frame 10 of prior art (please refer to Figure 14, Figure 15), it has the framework 11 of an opening 13, this framework 11 comprises a plurality of sidewalls 12 of being located on its edge, in the above-mentioned opening 13 blast fan 16 can be installed, this impeller 16 rotates and blows out from the below after the air-flow that is driven enters from these opening 13 tops, a wherein side of each sidewall 12 bends inwards, but and and 12 of adjacent walls be formed with the short slot 17 of air feed fan side direction inlet air; Yet though this fan promotes air inflow by the set opening 13 in its framework 11 sides, the blade end each several part of this fan all keeps same distance will cause this fan to produce the secondary flow phenomenon with fan frame body 10; Therefore, be necessary to be improved at the shortcoming of prior art.

Summary of the invention

Therefore, for solving the shortcoming of above-mentioned prior art, main purpose of the present invention provides a kind of fan frame, and it can reduce the secondary flow phenomenon between blade end and the deflector.

An of the present invention purpose is deflector and the layout form thereof by involute shape, makes deflector amplification pressure and increases air inflow, significantly promotes so as to impelling air output.

A further object of the present invention can increase fan duty or usefulness.

For achieving the above object, the technical solution used in the present invention comprises:

A kind of fan frame, mainly comprise: several deflectors, this deflector is connected by at least one rib to each other, described deflector defines an opening, can be in order to the installing blast fan, described blast fan has several blades, it is characterized in that: described deflector is to arrange with the direction of a curve extension and according to non-concentric ring-shaped, this blade end is not a unanimity with respect to the spacing of aforementioned deflector, so as to reducing the secondary flow phenomenon between blade and deflector.

For achieving the above object, the technical solution used in the present invention also comprises:

A kind of fan frame, mainly comprise: several deflectors, described deflector interconnects by a Fixed Division of being located at this deflector, described deflector defines an opening, can be in order to the installing blast fan, described blast fan has several blades, it is characterized in that: described deflector is to arrange with the direction of a curve extension and according to non-concentric ring-shaped, this blade end is not a unanimity with respect to the spacing of aforementioned deflector, so as to the secondary flow phenomenon between reduction blade and deflector.

Description of drawings

Fig. 1 is a preferred embodiment decomposing schematic representation of the present invention;

Fig. 2 is a kind of combination schematic representation of Fig. 1;

Fig. 3 is a kind of combination schematic representation of Fig. 1;

Fig. 4 is a kind of combination schematic representation of Fig. 1;

Fig. 5 is a kind of side schematic view of deflector;

Fig. 6 is a kind of side schematic view of deflector;

Fig. 7 is a kind of side schematic view of deflector;

Fig. 8 is a kind of side schematic view of deflector;

Fig. 9 is a kind of side schematic view of deflector;

Figure 10 is the schematic top plan view of Fig. 1;

Figure 11 is an another preferred embodiment combination schematic representation of the present invention;

Figure 12 is the combination of an a preferred embodiment again schematic representation of the present invention;

Figure 13 is another preferred embodiment combination schematic representation of the present invention;

Figure 14 is a kind of fan frame schematic perspective view of prior art;

Figure 15 is the plan view that Figure 14 fan frame combines with blast fan.

The drawing reference numeral explanation

Prior art: fan frame 10, framework 11, sidewall 12, opening 13, impeller 16, short slot 17

The present invention: 11 deflectors; Article 12, rib; 13 bases; 14 openings; 20 blast fans; 21 blades; 210,210 ' end; 30 Fixed Divisions; D, d ' spacing; L1, L2 length;

Embodiment

For other advantage of the present invention, purpose, technical characteristics and effect, can be by the detailed description of this case preferred embodiment of following conjunction with figs., and be tending towards understanding:

Please refer to Fig. 1, show a preferred embodiment of fan frame of the present invention, mainly comprise: several deflectors 11, this deflector 11 is connected by at least one rib 12 to each other, and form a base 13 in its centre, in order to bearing one motor (not being shown among the figure), a blast fan 20 can be installed on this motor, and described blast fan 20 has several blades 21.

Described deflector 11 is to arrange with the direction of a curve extension and according to non-concentric ring-shaped, and define an opening 14, air-flow is entered by this opening 14 like this, above-mentioned blade 21 each end points are not unanimity with respect to the spacing of aforementioned deflector 11, in brief, the end 210 of this blade 21,210 ' the deflector 11 relative with it is not equidistantly (to please refer to spacing d shown in Figure 10, d ', the non-isometric structure of this kind can be described as " involute "), so as to reducing the secondary flow phenomenon of blade 21 ends and 11 air-flows of deflector, so that deflector increases pressure and increases air inflow, impel air output (discharge in the gap by described rib 12) significantly to promote.

The end of several above-mentioned deflectors 11 can be the layout form (please refer to Fig. 2) of mutual alignment or is mutually " overlapping " (or claim " intersection ", please refer to Fig. 3) or maintains spacing (please refer to Fig. 4) each other; But aforementioned deflector 11 each other alignment or overlapping etc. only for visually the viewpoint of (for example: the user is seen by the side of this deflector 11 and looks), but not in fact the alignment or overlapping (that is, these deflector 11 surfaces still have the gap each other), therefore, when blast fan 20 runnings, the air-flow that produces is except being entered by opening 14, air-flow more can enter via the gap around the above-mentioned deflector 11, aforementioned air-flow can significantly promote air inflow and air output owing to above-mentioned involute layout form makes deflector amplification pressure.

The configuration of aforementioned deflector 11 can be long strip and (please refer to shown in Figure 5, the length L 1 of its both sides, L2 equate) or lack one jiao and form the polygonal (polygon of equivalence at least, please refer to the 6th, 7,8 figure) or lack a hypotenuse at least and form like trapezoidal (trapezoid please refer to Fig. 9) or other enforceable any configuration; But the configuration of this deflector 11 only is to watch formed visual point by the side, and in fact still as described above, deflector 11 extends with direction of a curve.

In of the present invention one feasible embodiment, establish at least one aperture (not being shown among the figure) in above-mentioned rib 12, this fan frame can be fixed in by locked assembly (not being shown among the figure) and treat heat-dissipating thing (not being shown among the figure), for example: radiating module etc.; In addition, the quantity of aforementioned deflector 11 can increase and decrease according to actual demand, this deflector 11 also can connect by a Fixed Division 30 to each other, any position (please refer to the 11st, 12,13 figure) of above-mentioned deflector 11 can be located in described Fixed Division 30, and the centre that aforementioned base 13 also can be not connected in this rib 12 forms (in any position that described deflector 11 is enclosed all can).

The above only is the preferred embodiment of this case, is not in order to restriction the present invention, if comply with the change that conception of the present invention is done, in not breaking away from the present invention's spirit scope,, modify and use for various variations, the equivalent action that produces all should be contained in the claim scope of the present invention.

Claims

1. fan frame, mainly comprise: several deflectors, described deflector is connected by at least one rib to each other, described deflector defines an opening, can be in order to the installing blast fan, described blast fan has several blades, it is characterized in that: described deflector is to arrange with the direction of a curve extension and according to non-concentric ring-shaped, this blade end is not a unanimity with respect to the spacing of aforementioned deflector, so as to the secondary flow phenomenon between reduction blade and deflector.

2. fan frame as claimed in claim 1, the central authorities of its discal patch rib joint form a base.

3. fan frame as claimed in claim 2, wherein the base bearing has a motor.

4. fan frame as claimed in claim 1, wherein deflector has the gap to each other.

5. fan frame as claimed in claim 1, wherein the end of several deflectors is the layout form of mutual alignment.

6. fan frame as claimed in claim 1, the wherein terminal intersection mutually of several deflectors.

7. fan frame as claimed in claim 1, wherein the end of several deflectors maintains spacing each other.

8. fan frame as claimed in claim 1, wherein deflector is elongated or polygonal or in echelon or any configuration.

9. fan frame, mainly comprise: several deflectors, described deflector interconnects by a Fixed Division of being located at this deflector, described deflector defines an opening, can be in order to the installing blast fan, described blast fan has several blades, it is characterized in that: described deflector is to arrange with the direction of a curve extension and according to non-concentric ring-shaped, this blade end is not a unanimity with respect to the spacing of aforementioned deflector, so as to the secondary flow phenomenon between reduction blade and deflector.