CN102606492B

CN102606492B - Fan component

Info

Publication number: CN102606492B
Application number: CN201110026724.XA
Authority: CN
Inventors: 张楯成
Original assignee: Delta Optoelectronics Inc
Current assignee: Delta Optoelectronics Inc
Priority date: 2011-01-25
Filing date: 2011-01-25
Publication date: 2015-04-22
Anticipated expiration: 2031-01-25
Also published as: CN102606492A

Abstract

The invention discloses a fan component which comprises a flow channel structure and a centrifugal fan, wherein the flow channel structure comprises a shell and at least one air slit. The shell forms a containing space and an air flow channel which are adjacent to each other; and the air slit extends along the air flow channel which is communicated with the outer part of the shell through the air slit. The centrifugal fan is arranged in the containing space; wind enters axially the centrifugal fan and airflow is generated; and the airflow is sent into the airflow channel radially and sent out to the outer part of the shell from the air slit.

Description

Fan component

Technical field

The present invention relates to a kind of fan component, particularly relate to and utilize centrifugal fan to produce air-flow to flow passage structure, with the fan making air-flow flow out to flow passage structure.

Background technique

General existing domestic fan utilizes motor to drive an axial flow fan to rotate, and flowing to make air produces air-flow.This kind of domestic fan needs to arrange larger blade, could produce enough air quantity.But larger blade also produces larger moment, and the sense of rotation of the bearing of trend of blade and blade and in an acute angle, if the blade that children touch in rotation may cause danger.

In order to solve the above problems, the U.S.'s No. 20090060710 publication discloses a kind of fan 100, as shown in Figure 1, it is inner that axial flow fan 110 is arranged at a pedestal 120 by it, and vertically place down, along an air flow path F1 after being sucked via the inlet hole 121 of pedestal 120 sidewall by air, enter annular nozzle 130.Air is finally by being flowed out by annular nozzle 130 and driving the air inside nozzle to flow along an airflow direction D1.

Because axial flow fan 110 is arranged at the inside of pedestal 120, children can be avoided to touch, and the inner side of annular nozzle 130 is the space of a hollow, can avoids sheltering from light.

But above-mentioned design still has considerable disappearance, to such an extent as to the air-out usefulness of above-mentioned fan 100 is not good.Axial flow fan 110 in Fig. 1, same in axially producing air-flow by axial inlet air, because the flabellum of this axial flow fan 100 is arranged down, motor 111 is between flabellum and annular nozzle 130, so that air is upwards delivered to annular nozzle 130, but element such as the motor of whole axial flow fan 110 111 grade can block the space of pedestal 120 inner most, causes air-flow only can flow at narrow passage G, cause air-flow to silt up, affect air-out usefulness.In addition, inlet hole 121 is opened in the sidewall of pedestal 120, and the direction that air is entered via sidewall inlet hole 121 is vertical with the direction of axial flow fan 110 inlet air, can affect intake efficiency.

Separately referring to Fig. 2, is the enlarged view of Figure 1A part.Annular nozzle is provided with an air outlet hole 132 in air inlet side 131, and the air-flow that therefore air outlet hole 132 flows out can flow to via air inlet side 131 side 133 of giving vent to anger.Can find out by figure, aforesaid air-flow, owing to being subject to the impact of ring-type madial wall stop, can reduce the air output of air outlet hole 132.In addition, as shown in FIG., the air-flow of annular nozzle 130 be via single-revolution after the air-flow that just flowed out by air outlet hole 132, so also significantly can reduce blast and the air output of air-flow, affect the air-out efficiency of overall fan 100.

Summary of the invention

In order to solve the disappearance of above-mentioned prior art, the object of the present invention is to provide a kind of fan component, it utilizes the flow passage structure of centrifugal fan and improvement, to improve air-out efficiency, and can possess the advantage of above-mentioned prior art.

To achieve the above object, one embodiment of the invention provide a kind of fan component to comprise a flow passage structure and a centrifugal fan, and flow passage structure comprises a housing and at least one air gap.Housing forms an adjacent containing space and an air-flow path.This air gap extends along air-flow path, and air-flow path is connected with outside via air gap.Centrifugal fan is arranged at containing space, and centrifugal fan by axial inlet air, and produces an air-flow, by radial direction, air-flow is sent into air-flow path.Wherein air-flow flows out to outside via air gap.

In one embodiment, aforementioned housing comprises at least one inlet hole, axially corresponds to centrifugal fan and arranges, to provide centrifugal fan by outside inlet air.

In one embodiment, aforementioned flow passage structure comprises at least one honeycomb duct, adjacent to centrifugal fan, in order to accelerate the air-flow that centrifugal fan produces, and guides the air-flow that centrifugal fan produces and enters air-flow path by radial direction.

In one embodiment, preceding guide road comprises one first honeycomb duct and one second honeycomb duct, and the direction of the first honeycomb duct air-guiding is different from the direction of the second honeycomb duct air-guiding.

In one embodiment, aforementioned flow passage structure comprises a separating element, and in order to separate the first honeycomb duct and the second honeycomb duct, and first and second honeycomb duct is staggered on the inlet air direction of centrifugal fan.

In one embodiment, aforementioned flow passage structure is roughly in a ring structure, and the first honeycomb duct in a clockwise direction air-guiding enters the air-flow path of ring structure, and the second honeycomb duct enters the air-flow path of ring structure with counter clockwise direction air-guiding.

In one embodiment, aforementioned centrifugal fan comprises a motor, a wheel hub, multiple first flabellum and multiple second flabellum, motor is arranged in wheel hub, multiple first flabellum and multiple second flabellum corresponds respectively to the first honeycomb duct and the second honeycomb duct is arranged around wheel hub.

In one embodiment, aforementioned centrifugal fan also comprises a junction, and for discoid, in order to connect wheel hub and first and second flabellum multiple, and joint is arranged between first and second flabellum.

In one embodiment, aforementioned centrifugal fan comprises corresponding to one first motor of the first honeycomb duct, a first wheel and multiple first flabellum, and comprise corresponding to one second motor of the second honeycomb duct, one second wheel hub and multiple second flabellum, first and second motor is arranged in first and second wheel hub respectively, and first and second flabellum multiple is arranged around first and second wheel hub respectively.

In one embodiment, aforementioned separating element separates first and second motor.

In one embodiment, aforementioned air-flow path has a channel part, and an end narrow gradually.

In one embodiment, aforesaid end is by adjacent channel portion to narrowing gradually away from channel part, and air gap is arranged at the leading edge of end away from channel part.

In one embodiment, aforementioned air gap is arranged at channel part, and housing is roughly parallel to the staggered of air-flow outflow direction in the formation of air gap place.

In one embodiment, aforementioned flow passage structure is roughly in a ring structure, and form an airflow space in inner side, air gap hoop extends the inner side of ring structure, and around this airflow space.

In one embodiment, aforementioned fan component also comprises a pedestal, in order to carry flow passage structure.

In one embodiment, aforementioned centrifugal fan is arranged at the one end adjacent to pedestal in flow passage structure, or is arranged at the other end relative to pedestal in flow passage structure.

In one embodiment, aforementioned flow passage structure is combined by multiple ring structure, and centrifugal fan is arranged at the junction point of multiple ring structure.

In one embodiment, aforementioned flow passage structure comprises a ring structure and multiple flow guide structure, and multiple flow guide structure is connected to the inner ring surface of ring structure, and centrifugal fan is arranged at the jointing place of multiple flow guide structure and is positioned at the center of ring structure.

In one embodiment, preceding guide structure comprises the first flow guide structure of a longitudinal extension, and the second flow guide structure of a horizontal expansion.

In one embodiment, flow passage structure is roughly in a ring structure, and form an airflow space in the inner side of ring structure, airflow space has an inlet air side and an air side, when air-flow can drive the air in airflow space to be moved by inlet air side direction air side via air gap to this outside outflow, and the direction that air-flow is flowed out by air gap is identical with the direction of the air movement in airflow space.

Accompanying drawing explanation

Fig. 1 is the sectional view of existing fan;

Fig. 2 is the enlarged view of Figure 1A part;

Fig. 3 is the stereogram of the first embodiment of fan component of the present invention;

Fig. 4 is the sectional view of the first embodiment of fan component of the present invention;

Fig. 5 is the phantom of the second embodiment of flow passage structure of the present invention;

Fig. 6 is the phantom of the 3rd embodiment of flow passage structure of the present invention;

Fig. 7 is the schematic diagram of the 4th embodiment of fan component of the present invention;

Fig. 8 is the sectional view of Fig. 7 AA section;

Fig. 9 is the schematic diagram of the 5th embodiment of fan component of the present invention;

Figure 10 is the schematic diagram of the 6th embodiment of fan component of the present invention;

Figure 11 is the schematic diagram of the 7th embodiment of fan component of the present invention; And

Figure 12 is the schematic diagram of the 8th embodiment of fan component of the present invention.

Primary component symbol description

Fan 100

Axial flow fan 110

Motor 111

Pedestal 120

Inlet hole 121

Annular nozzle 130

Air inlet side 131

Air outlet hole 132

To give vent to anger side 133

Madial wall 134

Air flow path F1

First airflow direction D1

Passage G

Fan component 1

Pedestal 200

Flow passage structure 300

Ring structure 300a

Inner ring surface 301a

Flow guide structure 300b, 300c

Housing 300 '

Inlet air side 301

Air side 302

Air-flow path 304,304a

Outer side wall 305

Madial wall 306

First madial wall 3061

Second madial wall 3062

Containing space 307,307a

Inlet hole 308

Channel part 310

End 320

Air gap 321,321a, 321b

Air gap channel 322

First honeycomb duct 330

Second honeycomb duct 340

Centrifugal fan 400

Motor 410,410a

Bearing 411

Impeller 420

Second impeller 420a

Sidewall 421

Air inlet face 422

Wheel hub 423,423a

Joint 424

First flabellum 425

Second flabellum 426

Blower-casting 430

Separating element 431

First wind inlet 432

Second wind inlet 433

First honeycomb duct 330

Second honeycomb duct 340

Running shaft AX1

Airflow direction D2

Axial D3, D4

Radial D3a

First direction D5

Second direction D6

Longitudinal D7

Horizontal D8

Airflow space S1

First space S 2

Second space S3

Embodiment

Following described be implement best mode of the present invention, object is spirit of the present invention is described and is not used to limit protection scope of the present invention, and protection scope of the present invention is when be as the criterion depending on the accompanying claim person of defining.

Refer to Fig. 3 and Fig. 4, fan component 1 comprise pedestal 200, flow passage structure 300, with a centrifugal fan 400.Pedestal 200 can be positioned over a ground or desktop, and in order to carry flow passage structure 300, flow passage structure 300 comprises a housing 300 ' and at least one air gap 321.Housing 300 ' can be the ring structure of a hollow, containing space 307 and the air-flow path 304 that inner formation is adjacent.This air gap 321 extends along air-flow path 304, and air-flow path 304 is connected with housing 300 ' outside via air gap 321.Centrifugal fan 400 is arranged at containing space 307, and centrifugal fan 400 by axial D3 inlet air, and produces an air-flow, by radial D3a, air-flow is sent into air-flow path 304.Wherein air-flow flows out to housing 300 ' outside via air gap 321.

The housing 300 ' of flow passage structure 300 also can comprise multiple inlet hole 308, containing space 307 is interconnected with air-flow path 304 and inlet hole 308 respectively, inlet hole 308 can be arranged corresponding to centrifugal fan 400, to provide centrifugal fan 400 by the outside inlet air of housing 300 ' by axial D3.

Flow passage structure 300 is roughly in a ring structure, form an airflow space S1 in inner side, air gap 321 hoop extends the inner side of ring structure, and circling gas flow space S 1, and housing 300 ' has a madial wall 306 in the inner side of ring structure, there is in the outside of ring structure an outer side wall 305.Flow passage structure 300 is arranged on pedestal 200, centrifugal fan 400 is arranged at the one end adjacent to pedestal 200 in flow passage structure 300, the air-flow produced by centrifugal fan 400 is flowed out to the air gap 321 of flow passage structure 300, is moved by 301 to air side, inlet air side 302 to drive the air of airflow space S1 along an airflow direction D2.

Air-flow path 304 has channel part 310 and an end 320, and channel part 310 is air-flow path 304 with the inside of end 320.Channel part 310 is adjacent to inlet air side 301, and can be a U-shaped structure.End 320 is adjacent to air side 302 and is connected with channel part 310.End 320 can be a v-shaped structure, is narrowed gradually to away from channel part 310 by adjacent channel portion 310, and the cross section of channel part 310 is roughly rectangular, and air gap 321 can be arranged at the leading edge of end 320 away from channel part 310.

Therefore the pneumatic convey produced when centrifugal fan 400 is to the air-flow path 304 in flow passage structure 300, aforesaid air-flow is flowed out by the air gap 321 of end 320 or channel part 310, the blast of air-flow can be improved, and then drive the air of airflow space S1 to be flowed by 301 to air side, inlet air side 302.In the present embodiment, air-flow there is no any stop via between air-flow path 304 to air gap 321, can't just flow to air gap 321, therefore can have higher air output as prior art air-flow behind bending path.

In the present embodiment, centrifugal fan 400 comprises motor 410 and an impeller 420.Motor 410 and impeller 420 are arranged in containing space 307.The bearing 411 of motor 410 can be arranged along a running shaft AX1, and drives impeller 420 rotates along running shaft AX1.Or centrifugal fan 400 can comprise a blower-casting, the inside of blower-casting forms containing space 307.

After impeller 420 rotates, centrifugal fan 400 along the parallel axial D3 inlet air of running shaft AX1, and produces an air-flow, to attract air to impeller 420.Aforesaid air-flow is sent into air-flow path 304 by radial D3a (Vertical direction as running shaft AX1 in figure) by impeller 420, and last aforesaid air-flow flows out to housing 300 ' outside via air gap 304.As seen from Figure 4, inlet hole 308 corresponds to impeller 420, that is, the plane that air gap 321 arranges, also parallel with the air inlet face 422 of impeller 420.Therefore when impeller 420 rotates, air directly sucks via air gap 321 by D3 vertically, owing to there not being other objects to intercept, therefore hinge structure can improve intake efficiency.

Fig. 5 is the phantom of the second embodiment of flow passage structure of the present invention.This and first embodiment's difference are that the cross section of air-flow path 304 is one wing, the cross section of channel part 310 is roughly in arc shape, the rough tilting of end of end 320, the rough straight line being parallel to airflow direction D2 that presents in the cross section of the madial wall 306 of housing 300 ' extends.Made by aforesaid structure that air-flow is easier to flow out from air gap 321, and it is more smooth and easy that the air in airflow space S1 can be made to flow.

Fig. 6 is the phantom of the 3rd embodiment of flow passage structure of the present invention.This and first embodiment's difference are that the cross section of air-flow path 304 is one wing, and the cross section of channel part 310 is roughly in arc shape, and the cross section of end 320 presents a V-arrangement.

Air gap 321 is arranged at channel part 310, and air gap 321 comprises an air gap channel 322, and housing 300 ' is formed in air gap 321 place and is roughly parallel to the staggered of air-flow outflow direction.The madial wall 306 of housing 300 ' comprises one first madial wall 3061 and one second madial wall 3062, first madial wall 3061 and the second madial wall 3062 are roughly parallel to airflow direction D2 and overlapped, overlapped part forms air gap channel 322, air gap channel 322 is also roughly parallel to airflow direction D2, and air gap 321 is formed at the end of air gap channel 322.Made by aforesaid structure that air-flow is easier to flow out from air gap 321, and the air in airflow space S1 can be made to flow more smooth and easy.

Refer to Fig. 7 and Fig. 8, Fig. 7 is the schematic diagram of the 4th embodiment of fan component of the present invention, and Fig. 8 is the sectional view of Fig. 7 AA section.Be with first embodiment's difference, flow passage structure 300 comprises one first honeycomb duct 330 and one second honeycomb duct 340, first honeycomb duct 330 and the second honeycomb duct 340 are adjacent to centrifugal fan 400, the air-flow produced in order to guide centrifugal fan 400 enters air-flow path 304 by radial direction, and the direction of the first honeycomb duct 330 air-guiding is different from the direction of the second honeycomb duct 340 air-guiding.Centrifugal fan 400 also comprises a blower-casting 430.The inside of blower-casting 430 is provided with a separating element 431, by the interior separation of blower-casting 430 to be one first space S 2 and a second space S3, blower-casting 430 is separately provided with one first wind inlet 432 and one second wind inlet 433, first wind inlet 432 and the first space S 2 are interconnected, and the second wind inlet 433 is interconnected with second space S3.Impeller 420 is arranged at the inside of blower-casting 430, and produces air-flow.

In the present embodiment, impeller 420 comprises a wheel hub 423, a junction 424, multiple first flabellums 425 and multiple second flabellum 426.Motor 410 is arranged in wheel hub 420, and the first flabellum 425 and the second flabellum 426 are arranged around wheel hub 423.The side of wheel hub 423 is adjacent to the first wind inlet 432, and the opposite side of wheel hub 423 is adjacent to the second wind inlet 433.Joint 424 can be discoid, one end inside joint 424 is connected to wheel hub 423, the other end outside joint 424 connects the first flabellum 425 and the second flabellum 426, and the first flabellum 425 and the second flabellum 426 are arranged at the opposite flank of joint 424 respectively, that is, joint 424 is arranged between the first flabellum 425 and the second flabellum 426, contiguous second flabellum 426 of contiguous first flabellum 425, second wind inlet 433 of the first wind inlet 432.

The interior separation of blower-casting 430 is the first space S 2 and second space S3 by joint 424 and separating element 431, and separating element 431 can separate the first honeycomb duct 330 and the second honeycomb duct 340 further.In addition the first flabellum 425 is positioned at the first space S 2 and corresponds to the first honeycomb duct 330, second flabellum 426 and is positioned at second space S3 and corresponds to the second honeycomb duct 340.The air-flow that first flabellum 425 and the second flabellum 426 produce flow to the first space S 2 to form one first air-flow and to flow to second space S3 to form one second air-flow.

First honeycomb duct 330 is communicated with the first space S 2 and air-flow path 304, and the second honeycomb duct 405 is communicated with second space S3 and air-flow path 304.First honeycomb duct 330 and the second honeycomb duct 340 are upper staggered in the inlet air direction (can be axis) of centrifugal fan 400, that is, first air-flow flows into air-flow path 304 via the first honeycomb duct 330, flow along a first direction D5 in air-flow path 304 to guide the first air-flow, second air-flow flows into air-flow path 304 via the second honeycomb duct 405, to guide the second air-flow along a second direction D6 flowing in air-flow path 304, second direction D6 is different from first direction D5.Because air-flow path 304 can be a ring structure, therefore first direction D5 can be one counterclockwise, and second direction D6 can be a clockwise direction.Or first direction D5 can be a clockwise direction, second direction D6 can be one counterclockwise.

Referring to Fig. 9, is the schematic diagram of the 5th embodiment of fan component of the present invention.This and the 4th embodiment's difference are that blower-casting 430 only separates the first space S 2 and second space S3 with separating element 431.Centrifugal fan 400 comprises the first motor 410 and the first impeller 420 corresponding to the first honeycomb duct 330, and corresponding to one second motor 410a and the one second impeller 420a of the second honeycomb duct 340, separating element 431 is separated the first motor 410 and the second motor 410a and is separated first wheel 423 and the second wheel hub 423a.First impeller 420 and the second impeller 420a are arranged at the first space S 2 and second space S3 respectively.First impeller 420 comprises first wheel 423 and comprises one second wheel hub 423a and multiple second flabellum 426 with multiple first flabellum 425, second impeller 420a.First motor 410 and the second motor 410a are arranged in first wheel 423 and the second wheel hub 423a respectively, and the first flabellum 425 and the second flabellum 426 are arranged around first wheel 423 and the second wheel hub 423a respectively.First impeller 420 is contrary with the sense of rotation of the second impeller 420a.

In sum, the design be separated by taking runner, the centrifugal fan of aforementioned 4th embodiment and the 5th embodiment can be delivered to air-flow path by two-way for air-flow, compared to prior art only can unidirectional by pneumatic convey to air-flow path, can efficiently delivery air.

Refer to the schematic diagram that Figure 10 is the 6th embodiment of fan component of the present invention.The difference of this and the first embodiment is that centrifugal fan 400 is arranged at the other end relative to pedestal 200 in flow passage structure 300.Centrifugal fan 400 can be arranged at the upside of flow passage structure 300, and can horizontal positioned, and therefore axial D4 can as shown in FIG., vertically downward.So, centrifugal fan can be positioned over higher position, touch to prevent children.In addition, air-flow path 304 can be the ring structure of C shape, and the two opposite sides of centrifugal fan 400 are respectively adjacent to the two ends in air-flow path 304, that is, centrifugal fan 400 produces air-flow to the two ends of air-flow path 304 respectively, so can further improve air-out efficiency.

Refer to the schematic diagram that Figure 11 is the 7th embodiment of fan component of the present invention.This and first embodiment's difference are that flow passage structure 300 is combined by multiple ring structure 300a, and centrifugal fan arranges 400 at the junction point of multiple ring structure 300a.Ring structure 300a is arranged around centrifugal fan 400, the junction point of ring structure 300a is provided with a containing space 307a, the air-flow path 304a of containing space 307a and ring structure 300a is interconnected, and centrifugal fan 400 is arranged in containing space 307a.Ring structure 300a can be arranged along same plane, or arranges along different planes respectively.When ring structure 300a is arranged along same plane, the scope due to air gap 321a becomes large and the cross section of overall air-flow path 304a increases, and by improving the rotating speed of centrifugal fan 400, and then improves overall air output.When ring structure 300a is arranged along different planes, except overall air output can be improved, air-flow also can be made to blow along different directions, the scope of airflow blow can be expanded.

Refer to Figure 12, it is the schematic diagram of the 8th embodiment of fan component of the present invention.This and the 7th embodiment's difference are that flow passage structure 300 comprises a ring structure 300a and multiple flow guide structure 300b, 300c, flow guide structure 300b, 300c are connected to the inner ring surface 301a of ring structure 300a, centrifugal fan 400 is arranged at the jointing place of flow guide structure 300b, 300c and is positioned at the center of ring structure 300a, wherein flow guide structure 300b can extend by longitudinal D7, and flow guide structure 300c can extend by horizontal D8.The extension path of flow guide structure 300b, 300c can mutually merge or diverge, and air gap 321b is also arranged according to the extension path of flow guide structure 300b, 300c.Therefore, the people being familiar with this art can design arbitrarily extension path or the shape of flow passage structure, does not exceed spirit of the present invention.

In sum, the present invention utilizes the flow passage structure of centrifugal fan and improvement, completely can not by members block such as motors between the flabellum of fan and air-flow path, can be blocked by metope when prior art air-flow enters annular nozzle, air-flow just need can enter annular nozzle through repeatedly transferring, and honeycomb duct of the present invention hinders without any turnover, the air-flow that fan produces directly can be directed to air-flow path, honeycomb duct does not need to avoid the elements such as motor and the roundabout airflow that causes of transferring has some setbacks.In addition, honeycomb duct of the present invention more can accelerate the air-flow that fan produces; Preferably, air-flow is directed to air-flow path from clockwise and counter clockwise direction by air-flow by first and second honeycomb duct that the present invention also has Dual-layer respectively, be compared to prior art only can unidirectional by pneumatic convey to annular nozzle, the present invention can efficiently two-way delivery air.

Though the present invention discloses as above with various embodiment, but it is only exemplary reference and is not used to limit scope of the present invention, be anyly familiar with this operator, without departing from the spirit and scope of the present invention, can do a little change and retouching.Therefore above-described embodiment be not used to limit scope of the present invention, what protection scope of the present invention should define with the claim of enclosing is as the criterion.

Claims

1. a fan component, comprising:

Flow passage structure, roughly in a ring structure, comprising:

Housing, forms an adjacent containing space and an air-flow path; And

At least one air gap, extends along this air-flow path, and this air-flow path is connected with this outside via this air gap; And

Centrifugal fan, is arranged at this containing space, and this centrifugal fan by axial inlet air, and produces an air-flow, by radial direction, this air-flow is sent into this air-flow path;

Wherein this air-flow flows out to this outside via this air gap.

2. fan component as claimed in claim 1, wherein this housing comprises at least one inlet hole, axially corresponds to this centrifugal fan and arranges, to provide this centrifugal fan by this outside inlet air.

3. fan component as claimed in claim 2, wherein this flow passage structure comprises at least one honeycomb duct, and adjacent to this centrifugal fan, the air-flow produced in order to guide this centrifugal fan enters this air-flow path by radial direction.

4. fan component as claimed in claim 3, wherein this honeycomb duct comprises the first honeycomb duct and the second honeycomb duct, and the direction of this first honeycomb duct air-guiding is different from the direction of this second honeycomb duct air-guiding.

5. fan component as claimed in claim 4, wherein this flow passage structure comprises separating element, and in order to separate this first honeycomb duct and this second honeycomb duct, and this first and second honeycomb duct is staggered on the inlet air direction of this centrifugal fan.

6. fan component as claimed in claim 5, wherein this first honeycomb duct in a clockwise direction air-guiding enter this air-flow path of this ring structure, this second honeycomb duct enters this air-flow path of this ring structure with counter clockwise direction air-guiding.

7. fan component as claimed in claim 6, wherein this centrifugal fan comprises motor, wheel hub, multiple first flabellum and multiple second flabellum, this motor is arranged in this wheel hub, and the plurality of first flabellum and the plurality of second flabellum correspond respectively to this first honeycomb duct and this second honeycomb duct is arranged around this wheel hub.

8. fan component as claimed in claim 7, wherein this centrifugal fan also comprises joint, and it is discoid, and in order to connect this wheel hub and first and second flabellum the plurality of, and this joint is arranged between this first and second flabellum.

9. fan component as claimed in claim 8, wherein this centrifugal fan comprises corresponding to one first motor of this first honeycomb duct, a first wheel and multiple first flabellum, and comprise corresponding to one second motor of this second honeycomb duct, one second wheel hub and multiple second flabellum, this first and second motor is arranged in this first and second wheel hub respectively, and first and second flabellum the plurality of is arranged around this first and second wheel hub respectively.

10. fan component as claimed in claim 9, wherein this separating element separates this first and second motor.

11. fan components as claimed in claim 1, wherein this air-flow path comprises channel part, and an end narrow gradually.

12. fan components as claimed in claim 11, wherein this end is by being close to this channel part to narrowing gradually away from this channel part, and this air gap is arranged at the leading edge of this end away from this channel part.

13. fan components as claimed in claim 11, wherein the cross section of this channel part is roughly rectangular.

14. fan components as claimed in claim 11, wherein the cross section of this air-flow path is roughly in wing, and the cross section of this channel part is roughly in arc shape.

15. fan components as claimed in claim 11, wherein the cross section of this end is roughly V-shaped.

16. fan components as claimed in claim 11, wherein this air gap is arranged at this channel part, and this housing is formed in this air gap place and is roughly parallel to the staggered of this air-flow outflow direction.

17. fan components as claimed in claim 1, wherein this housing has madial wall in this air-flow path, and the cross section of this madial wall is roughly parallel to this airflow direction straight line and extends.

18. fan components as claimed in claim 1, wherein this air gap comprises air gap channel, this housing has the first madial wall and the second madial wall in this air-flow path, this first madial wall and this second madial wall are roughly parallel to airflow direction and overlapped, and form an air gap channel in overlapped part.

19. fan components as claimed in claim 1, wherein form an airflow space in the inner side of this ring structure, this air gap hoop extends the inner side of this ring structure, and around this airflow space.

20. fan components as claimed in claim 1, it also comprises pedestal, in order to carry this flow passage structure.

21. fan components as claimed in claim 20, wherein this centrifugal fan is arranged at the one end adjacent to this pedestal in this flow passage structure, or is arranged at the other end relative to this pedestal in this flow passage structure.

22. fan components as claimed in claim 1, wherein this flow passage structure is combined by multiple ring structure, and this centrifugal fan is arranged at the junction point of the plurality of ring structure.

23. fan components as claimed in claim 1, wherein this flow passage structure comprises multiple flow guide structure, the plurality of flow guide structure is connected to the inner ring surface of this ring structure, and this centrifugal fan is arranged at the jointing place of the plurality of flow guide structure and is positioned at the center of this ring structure.

24. fan components as claimed in claim 23, wherein this flow guide structure comprises the first flow guide structure of a longitudinal extension, and the second flow guide structure of a horizontal expansion.

25. fan components as claimed in claim 1, wherein and form an airflow space in the inner side of this ring structure, this airflow space has inlet air side and air side, and this air-flow flows out to drive the air of this airflow space to be moved by this this air side of inlet air side direction to this outside via air gap.