CN100441880C

CN100441880C - Fan system

Info

Publication number: CN100441880C
Application number: CNB200510070466XA
Authority: CN
Inventors: 张楯成; 徐伟峻; 黄文喜
Original assignee: Delta Electronics Inc
Current assignee: Taida Electronic Industry Co Ltd; Delta Electronics Inc
Priority date: 2005-05-13
Filing date: 2005-05-13
Publication date: 2008-12-10
Anticipated expiration: 2025-05-13
Also published as: CN1862027A

Abstract

The present invention relates to an axial flow fan system which comprises a first air-supply device, a pipeline and a first axial flow fan, wherein the first axial flow fan mainly comprises a base, a rotor, a plurality of blades, etc. Each blade comprises a driven part and a work part. Because an air stream from the first air-supply device is guided by an air-supply mouth of the pipeline, the driven part rotates and drives the work part to rotate, which leads the axial flow fan to improve air quantity and lower air pressure. The present invention can radiate heat, and can elastically increase or decrease the quantity and the position of the air-supply device and the axial flow fan. Therefore, the design of the axial flow fan system is more elastic.

Description

Fan system

Technical field

The present invention relates to a kind of axial flow fan, particularly relate to a kind of axial flow fan that motor provides power still can turn round that need not.

Background technique

General fan mostly cooperates a motor to use, because motor can provide rotational kinetic energy, after the output power shaft of implementing seasonal fan and motor is coupling mutually, so that the rotational kinetic energy of motor can drive the fan rotation, reaches the effect that fan dispels the heat.

Operation system now is personal computer (Personal Computer) etc. for example, because its running speed is more and more faster, the demand that its required application fan dispels the heat hurriedly increased with day, wherein, personal computer often not only one local need to use fan and dispel the heat, the central arithmetic mean unit (CPU) in the personal computer for example, power supply unit (Power Supply Module), image processor (ImageDriver), or even on the casing, all need the running of the fan heat that leaves, if use the fan motor of above-mentioned prior art, need use several fan motors just to achieve the goal respectively, but so, not only its cost can't reduce, and power consumption also can increase along with the quantity of fan motor and increase, and its noise problem also can't be improved, in the environment that environmental consciousness comes back now, do not meet the trend in epoch in fact, improved necessity is arranged really.

Summary of the invention

The invention provides a kind of axial flow fan, this fan gives air-flow by an air outlet and turns round, so can make this axial flow fan reach the situation that need not fan can turn round, reaches the purpose of saving the energy.

The invention provides a kind of axial flow fan system, it comprises: one first gives wind apparatus; One pipeline, one end are connected to first and give wind apparatus, give the air-flow that wind apparatus produced in order to guide first; And one first axial flow fan, comprising: a pedestal; One rotor is coupling on pedestal by an axle center; And at least one flabellum, this flabellum is connected in rotor, wherein flabellum comprises a follower and a work done portion, driven position is at one first air outlet place with respect to pipeline, the airflow passes follower that is provided by first air outlet, making follower is that rotate at the center with the axle center, and drives the rotation of work done portion synchronously.

According to above-mentioned conception, follower is positioned near the rotor place, and work done portion is positioned at away from the rotor place.

According to above-mentioned conception, follower can be with the air-flow separated into two parts that air outlet provided, and the atmospheric pressure that two-part air-flow produced is poor, and can order about follower is that rotate at the center with the axle center.

According to above-mentioned conception, the section shape of follower is one wing.

According to above-mentioned conception, work done portion is center when rotating with the axle center, and work done portion can make the air pressure at an outlet air end place of first axial flow fan less than the air pressure at a wind inlet end place, makes and causes air current flow.

According to above-mentioned conception, axle center socket one bearing and then be coupling mutually with pedestal.

According to above-mentioned conception, bearing is selected from following group: a bush-type bearing, a ball bearing and a magnetic type bearing etc.

According to above-mentioned conception, first axial flow fan more comprises a rib and a shell, and rib connects shell and pedestal.

According to above-mentioned conception, pipeline further comprises one second air outlet, and pipeline can be directed to air-flow respectively the first air outlet place and the second air outlet place; In addition, axial flow fan of the present invention system comprises that further one second gives wind apparatus, and pipeline can be directed to air-flow respectively the first air outlet place and the second air outlet place.

According to above-mentioned conception, axial flow fan of the present invention system comprises that further one second gives wind apparatus, and pipeline can be directed to air-flow respectively the first air outlet place.

According to above-mentioned conception, first is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor etc.

According to above-mentioned conception, second is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor etc.

Description of drawings

Fig. 1 is the schematic perspective view of the axial flow fan in the axial flow fan of the present invention system;

Fig. 2 is the generalized section of the axial flow fan in the axial flow fan of the present invention system;

Fig. 3 A is the thin portion generalized section of the follower of the axial flow fan in the axial flow fan of the present invention system;

Fig. 3 B is the thin portion generalized section of the work done portion of the axial flow fan in the axial flow fan of the present invention system;

Fig. 4 is the generalized section of the axial flow fan system of first embodiment of the invention;

Fig. 5 is the generalized section of the axial flow fan system of second embodiment of the invention;

Fig. 6 is the generalized section of the axial flow fan system of third embodiment of the invention.

Embodiment

Technical characteristics for the detailed explanation first embodiment of the invention, please be simultaneously with reference to Fig. 1, Fig. 2 and Fig. 4, wherein Fig. 4 is the generalized section of the axial flow fan system of first embodiment of the invention, and Figure 1 shows that the schematic perspective view of the axial flow fan in the axial flow fan of the present invention system, shown in Figure 2 then is the generalized section of above-mentioned Fig. 1; Please refer to Fig. 4, shown in figure, axial flow fan of the present invention system comprises: one first gives wind apparatus 31, a pipeline 21 and one first axial flow fan 1; Wherein first can as described in the prior art axial flow fan motor or centrifugal fan motor all can implement for wind apparatus 31, can provide the device of an air-flow can be for it as long as have basically; And a channel that provides air flow stream to cross is provided pipeline 21, and the one end is connected to first and gives wind apparatus 31, in order to guide first air-flow of being produced for wind apparatus 31; First axial flow fan 1 mainly then is to comprise a pedestal 10, a rotor 12 and a plurality of flabellum 14 etc., please refer to shown in Figure 2; Wherein, pedestal 10 connects a shell 16 by at least one rib 15, this shell 16 can have the effect of standard air velocity distribution, and rotor 12 is coupling on pedestal 10 by an axle center 13, basically, rotor 12 is socketed on the bearing 100, be coupling in pedestal 10 places by bearing 100 again, the preferably, bearing 100 can be bush-type bearing, ball bearing or magnetic type bearing can be implemented, and making rotor 12 can be that the center rotates on pedestal 10 with axle center 13, and is connected with a plurality of flabellums 14 on the rotor 12, so when rotor 12 rotations, can drive a plurality of flabellum 14 rotations simultaneously, to reach the effect of heat radiation.

It is as follows to illustrate further technical operations mode of the present invention, because first air-flow of being produced for wind apparatus 31 can flow to one first air outlet, 210 places of pipeline 21 by pipeline 21, and each flabellum 14 in above-mentioned first axial flow fan 1 of the present invention all includes a follower 141 and a work done portion 142 respectively, wherein, 210 of first air outlets are positioned at respect to follower 141 places, follower 141 along arc to thin portion sectional drawing can be designed to as shown in Figure 3A, make when airflow passes follower 141 (the air current flow direction is shown in the thin arrow among Fig. 2), follower 141 can make the air-flow separated into two parts, because the path difference of follower 141 both sides, the preferably, the section of follower 141 can be for one wing, the flow velocity of the two-part air-flow of this feasible follower 141 of flowing through has difference, according to physical " Bai Nuli law " (Bernoulli ' s law), it is poor to make two-part produce relative barometric pressure power, order about the direction motion of follower 141 shown in the arrow A among Fig. 3 A, more because follower 141 is connected in rotor 12, and be that the center radiation shape stretches out with rotor 12, so whole flabellum 14 can be that rotate at the center with axle center 13; Illustrate further again, when flabellum 14 is that the center is when rotating with axle center 13, work done portion 142 also rotates synchronously, work done portion 142 along arc to thin portion sectional drawing then shown in Fig. 3 B, the direction of direction shown in Fig. 3 B arrow B that work done portion 142 rotates, because the motion of work done portion 142, the section shape of work done portion 142 then as the flabellum section of motor fan of prior art identical, so the air pressure at outlet air end 19 places that can make first axial flow fan 1 is less than the air pressure at outlet air end 18 places, cause outer gas stream to be inhaled into from wind inlet end 18, and be blown from outlet air end 19, its air current flow direction is shown in the hollow arrow among Fig. 2 and Fig. 4, first axial flow fan 1 of the present invention for example is arranged on the electronic equipment (not shown), promptly can reaches the purpose that makes this electronic equipment heat radiation; The preferably, follower 141 is to be positioned near rotor 12 places, and work done portion 142 is positioned at away from rotor 12 places, but does not need as limit, for example follower 141 is arranged at away from rotor 12 places, or the about centre that follower 141 is arranged at flabellum 14 etc. all can be implemented according to this.

Because the structure of the axial flow fan system of above-mentioned integral body, can be only with wherein first axial flow fan 1 be arranged at the electronic equipment place desiring to dispel the heat get final product, and be arranged to other place for wind apparatus 31 with first, only delivering to first axial flow fan 1 for wind apparatus 31 by pipeline 21 with first gets final product, so, first axial flow fan, 1 placement just can reach the effect that is compared to prior art and reduces noise; In addition, the design of the axial flow fan 1 in the axial flow fan of the present invention system, owing to flabellum 14 and rotor 12 are that the air-flow that follower 141 according to flabellum 14 receives first air outlet 210 and provided rotates, work done portion 142 by flabellum 14 produces the air current flow of air pressure official post outside again, principle according to the physical conservation of energy, axial flow fan 1 also meets the factor that wind inlet end 18 and the air quantity (Q) of outlet air end 19 equate with the product needs of blast (P), so present embodiment is when implementing, the air-flow that first air outlet 210 is provided generally can provide the air-flow of a higher blast, and then blow follower 141 and make flabellum 14 rotation, after axial flow fan 1 conversion, because axial flow fan 1 can be come the airstream suction of outside, the air flow rate of the outlet air end 19 of axial flow fan 1 is increased, also can reduce simultaneously the blast of the air-flow of outlet air end 19, so for example can be applied on the comparatively fragile thermal source, so can be not broken and damage when heat radiation because of the too high thermal source that causes of blast.

Technology described in above-mentioned first embodiment, because structure of the present invention was arranged for the wind apparatus 31 and first axial flow fan in 1 minute with first, so the present invention can derive following several mode of executions, then, referring again to Fig. 5, this figure is depicted as the generalized section of the axial flow fan system of second embodiment of the invention, by one first axial flow fan 1 and one second axial flow fan 2 are provided in the axial flow fan system that can obviously find out present embodiment shown in the figure simultaneously, the preferably, first axial flow fan 1 and second axial flow fan 2 are the identical in structure axial flow fan, so second axial flow fan 2 has and first axial flow fan, 1 identical effect, and present embodiment first give wind apparatus 31 be equally as described in the prior art the axial flow fan motor or the centrifugal fan motor all can, can provide the device of an air-flow can be for it as long as have; The pipeline 22 of present embodiment then is to have one first air outlet 221 and one second air outlet 222, wherein, the follower 141 of flabellum 14 is positioned at first air outlet, 221 places in first axial flow fan 1, the follower 241 of flabellum 24 then is positioned at second air outlet, 222 places in second axial flow fan 2, first air communication of being provided for wind apparatus 31 is crossed pipeline 22 guidings, flow to first air outlet 221 and one second air outlet 222 respectively, can offer first

axial flow fan

1 and 2 uses of second axial flow fan respectively, the operation principles of its first axial flow fan 1 and second axial flow fan 2 and its structure are all with identical described in the previous embodiment, do not repeat them here, therefore first axial flow fan 1 and second axial flow fan 2 can have the effect of heat radiation respectively.

As described in above-mentioned embodiment, can use axial flow fan of the present invention system to personal computer for example, owing to there are many places all to need heat radiation in the personal computer, for example central arithmetic mean unit, power supply unit, image processor, or even the first-class place of casing, can respectively first axial flow fan 1 and second axial flow fan 2 etc. (even more axial flow fan) be placed the above-mentioned heat radiation part that needs respectively, and supply with its needed air-flow for wind apparatus 31 by first, can directly save like this as prior art and need the needed cost of a plurality of fan motors, simultaneously, can arrange dexterously to establish as for other place for wind apparatus 31 with first, make personal computer itself can not produce noise, and then improve the impression of using personal computer because of the running that motor is arranged.

In addition, the invention provides again an embodiment as shown in Figure 6, this figure is depicted as the generalized section of the axial flow fan system of third embodiment of the invention, by providing in the axial flow fan system of present embodiment one first to produce air-flow to wind apparatus 32 shown in the figure as can be seen simultaneously to wind apparatus 31 and one second, be directed to one first air outlet 230 for the wind apparatus 31 and second air-flow of being produced for wind apparatus 32 by a pipeline 23 with first, use for one first axial flow fan 1 to supply with, wherein, the follower 141 of flabellum 14 is positioned at first air outlet, 221 places equally in first axial flow fan 1, wherein, first to give wind apparatus 31 can be respectively that as described in the prior art axial flow fan motor or centrifugal fan motor all can with one second to wind apparatus 32, basically, can be for it as long as have the device that an air-flow can be provided, and need not be identical and could operate; And the structure of first axial flow fan 1 and function mode do not repeat them here basically with aforementioned all identical.

Present embodiment is owing to be to come together to provide air-flow with two to wind apparatus, artificer for the axial flow fan system, the design space that nargin is more arranged is provided like this, the artificer can be under the permission situation of throughput and its blast, select the comparatively small-sized wind apparatus of giving for use, each noise of giving wind apparatus is reduced, and also may reduce whole cost to wind apparatus owing to what select for use, basically, above-mentioned each the described technology of embodiment of the present invention, can make the artificer obtain its needed effect, and reach the purpose of heat radiation simultaneously based on the factor of being considered.

The above only is preferred embodiment of the present invention, the foregoing description only be used for the explanation but not in order to limit claim of the present invention, category of the present invention is defined by appended claim.All equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims

1. fan system, it comprises:

One first gives wind apparatus; And

One first fan, comprising:

One pedestal;

One rotor is coupling on this pedestal by an axle center; And

At least one flabellum, this flabellum is connected in this rotor, it is characterized in that,

This fan system also comprises a pipeline, the one end is connected to this and first gives wind apparatus, first give the air-flow that wind apparatus produced in order to guide this, this flabellum comprises a follower and a work done portion, this driven position is at one first air outlet place with respect to this pipeline, by this follower of airflow passes that this first air outlet is provided, making this follower is that rotate at the center with this axle center, and drives this work done portion rotation synchronously.

2. fan system as claimed in claim 1, wherein this follower is positioned near this rotor place, and this work done portion is positioned at away from this rotor place.

3. fan system as claimed in claim 1, wherein this follower can be with the air-flow separated into two parts that this air outlet provided, and the atmospheric pressure that this each two-part air-flow produced is poor, and can order about this follower is that rotate at the center with this axle center.

4. fan system as claimed in claim 3, wherein the section shape of this follower is one wing.

5. fan system as claimed in claim 1, wherein this work done portion is center when rotating with this axle center, this work done portion can make the air pressure at an outlet air end place of this first fan less than the air pressure at a wind inlet end place, makes and causes air current flow.

6. fan system as claimed in claim 1, wherein this axle center socket one bearing and then be coupling mutually with this pedestal.

7. fan system as claimed in claim 6, wherein this bearing is selected from following group: a bush-type bearing, a ball bearing and a magnetic type bearing.

8. fan system as claimed in claim 7, wherein this first fan also comprises a rib and a shell, this rib connects this shell and this pedestal.

9. fan system as claimed in claim 1, wherein this pipeline further comprises one second air outlet, this pipeline can be directed to air-flow respectively this first air outlet place and this second air outlet place.

10. fan system as claimed in claim 9, wherein this system also further comprises one second fan, is arranged at this second air outlet place.

11. fan system as claimed in claim 9, wherein this system comprises that further one second gives wind apparatus, and this pipeline can be directed to air-flow respectively this first air outlet place and this second air outlet place.

12. fan system as claimed in claim 1, wherein this system comprises that further one second gives wind apparatus, and this pipeline can be directed to air-flow respectively this first air outlet place.

13. fan system as claimed in claim 1, wherein this first is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor.

14. as claim 11 or 12 described fan systems, wherein this second is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor.

15. as claim 1 or 10 described fan systems, wherein this first fan or this second fan are respectively the axial flow fan of no motor.