CN100449151C - Axial-flow fan - Google Patents
Axial-flow fan Download PDFInfo
- Publication number
- CN100449151C CN100449151C CNB2005100674363A CN200510067436A CN100449151C CN 100449151 C CN100449151 C CN 100449151C CN B2005100674363 A CNB2005100674363 A CN B2005100674363A CN 200510067436 A CN200510067436 A CN 200510067436A CN 100449151 C CN100449151 C CN 100449151C
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- Prior art keywords
- axial flow
- flow fan
- follower
- air
- work done
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Abstract
The present invention provides an axial flow fan which mainly comprises a base, a rotor, a plurality of blades, etc., wherein each blade comprises a driven part and a working part. The driven part rotates because of a high air pressure air stream at an air supplying port and drives the working part to rotate. Therefore, the axial flow fan can improve air quantity and can lower air pressure. The effect on heat radiation is obtained.
Description
Technical field
The present invention relates to a kind of axial flow fan, a kind of axial flow fan that does not need motor to provide power still can turn round particularly is provided.
Background technique
General fan great majority need to cooperate motors to use, because motor can provide rotational kinetic energy, after during enforcement the output power shaft of fan and motor being interconnected, make the rotational kinetic energy of motor can drive the fan rotation, to reach the effect of fan heat radiation.
But the structure of motor fan in the above-mentioned known technology can not be eliminated following shortcoming.The cost and the volume of first motor itself use separately because the motor fan of known technology can not remove motor, so the cost of motor is inevitable, in addition, motor itself occupies certain volume, even further simplify its structure again, and the also inevitable shared volume of motor; It two is that motor itself needs power supply to turn round, so in electronics during the motor fan of application of known technology, motor will consume certain quantity of energy and drive, thereby just can make fan rotation have the effect of heat radiation,, need to install a plurality of motor fans unavoidably if when the many places in the electronics all need to dispel the heat, then will double power consumption, in the environment of strengthening environmental consciousness now, do not meet the trend in epoch really, therefore be necessary to improve.
Summary of the invention
The invention provides a kind of axial flow fan, this fan provides air-flow to turn round by an air outlet, so can make this axial flow fan not need motor to turn round, reaches the purpose of saving the energy.
The invention provides a kind of axial flow fan, it comprises: a pedestal; One rotor is connected on the pedestal by one; And at least one blade, be connected on the rotor, wherein blade comprises a follower and a work done portion, follower is located at respect to an air outlet place externally, by the airflow passes follower that air outlet provided, making follower is that rotate at the center with the axle, and drives the rotation of work done portion synchronously.
According to above-mentioned design, follower is positioned near the rotor place, and work done portion is positioned at away from the rotor place.
According to above-mentioned design, follower can be with the air-flow separated into two parts that air outlet provided, the draught head that this two-part air-flow is produced, and can order about follower is that rotate at the center with the axle.
According to above-mentioned design, the section shape of follower is one wing.
According to above-mentioned design, work done portion is center when rotating with the axle, and work done portion can make the air pressure at an outlet air end place of axial flow fan less than the air pressure at an outlet air end place, thereby causes air current flow.
According to above-mentioned design, axle sleeve connects a bearing and then interconnects with pedestal.
According to above-mentioned design, bearing is selected from following group: bush-type bearing, ball bearing and magnetic type bearing etc.
According to above-mentioned design, blade also comprises one first dividing plate, and between follower and work done portion, wherein the shape of first dividing plate is a cirque body, or only is arranged between the follower and work done portion of blade, and its shape is a circular arc cylinder.
According to above-mentioned design, axial flow fan also comprises a rib and a shell, and rib connects shell and pedestal.
According to above-mentioned design, rib also comprises a second partition, is positioned on the rib, and wherein the shape of second partition is a cirque body, or is arranged on the rib, and its shape is a circular arc cylinder.
According to above-mentioned design, axial flow fan of the present invention is a kind of axial flow fan that does not have motor.
Description of drawings
Fig. 1 is the schematic perspective view of axial flow fan of the present invention;
Fig. 2 is the generalized section of axial flow fan of the present invention;
Fig. 3 A is the thin portion generalized section of the follower of axial flow fan of the present invention;
Fig. 3 B is the thin portion generalized section of the work done portion of axial flow fan of the present invention;
Fig. 4 is another embodiment's of an axial flow fan of the present invention generalized section.
Embodiment
In order to describe technical characteristics of the present invention in detail, see figures.1.and.2 simultaneously, wherein Figure 1 shows that the schematic perspective view of the structure of axial flow fan 1 of the present invention, Figure 2 shows that the generalized section of the structure of axial flow fan 1 of the present invention.Shown in figure, axial flow fan 1 of the present invention mainly comprises a pedestal 10, a rotor 12 and a plurality of blade 14 etc.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 connected on the pedestal 10 by one 13, basically, rotor 13 is socketed on the bearing 100, be connected pedestal 10 places by bearing 100 again,, and be connected with a plurality of blades 14 on the rotor 12 on pedestal 10 so rotor 12 can be that the center rotates with axle 12, so when rotor 12 rotations, can drive a plurality of blade 14 rotations simultaneously, reach the effect of heat radiation.
Technical characteristics of the present invention is to provide an air outlet 2, and this air outlet 2 can provide an air-flow to blow to a plurality of blades 14, with the power resources as axial flow fan 1.Wherein, each blade 14 all includes a follower 141 and a work done portion 142 respectively.Follower 141 along arc to thin portion sectional drawing as shown in Figure 3A, 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, preferably the section of follower 141 can be for one wing, and this makes the flow through flow velocity of two-part air-flow of follower 141 have difference.According to physical " one hundred exert in law ", it is poor to make two-part produce relative barometric pressure, orders about the direction motion of follower 141 shown in the arrow A among Fig. 3 A.Also because follower 141 is connected in rotor 12, and with rotor 12 is that the center radiation shape stretches out, so integral blade 14 can be that rotate at the center with axle 13.Illustrate further, when blade 14 is center when rotating with axle 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 blade section of motor fan of known technology identical, so the air pressure at outlet air end 19 places that can make axial flow fan 1 is less than the air pressure at wind inlet 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 makes axial flow fan 1 of the present invention can reach the purpose of air current flow heat radiation shown in the hollow arrow among Fig. 2.Preferably, follower 141 is positioned near rotor 12 places, and work done portion 142 then is positioned at away from rotor 12 places.But need be as limit, for example follower 141 is arranged at away from rotor 12 places, or the about centre that follower 141 is arranged at blade 14 etc. can be implemented, technology of the present invention mainly is the wind inlet end 18 of axial flow fan is located in the position of air outlet 2 and with respect to follower 141 places, blade 14 is rotated can reach identical effect.
Design of the present invention, owing to blade 14 and rotor 12 are that the air-flow that follower 141 according to blade 14 receives air outlet 2 and provided rotates, the work done portion 142 by blade 14 produces the air current flow of air pressure official post outsides again.According to physical conservation of energy principle, axial flow fan 1 of the present invention also meets the factor that the air quantity (Q) of wind inlet end 18 and outlet air end 19 equates with the product needs of blast (P).So present embodiment is when implementing, the air-flow that air outlet 2 is provided generally can provide the air-flow of a higher blast, and then blow follower 141 and make blade 14 rotation, after axial flow fan 1 conversion of the present invention, because axial flow fan 1 is 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.
In addition, the present invention also provides another embodiment, with reference to shown in Figure 4.Present embodiment and the described technology contents of above-mentioned Fig. 2 are roughly the same, but the unlikely mutual interference of being flow through respectively for the follower 141 that makes blade 14 and work done portion 142 mutually of air-flow, also set up one first dividing plate 143 between the follower 141 of the fan 14 of the axial flow fan 1 of present embodiment and the work done portion 142, follower 141 is separated with work done portion 142.Wherein, this first dividing plate 143 can be a complete cirque body, perhaps only is provided with first dividing plate 143 between the follower 141 of blade 14 and work done portion 142, thereby becomes an interrupted circular arc cylinder and also can implement.Like this, when airflow passes follower 141 that air outlet 2 is provided (the air current flow direction is shown in the thin arrow among Fig. 4), because the relation of first dividing plate 143, can not have influence on the flow field of the air-flow (the air current flow direction is shown in the hollow arrow among Fig. 4) that work done portion 142 guided, efficient more can be promoted.In addition, also further comprise a second partition 150 on the rib 15 of the axial flow fan 1 of present embodiment, wherein, the position of second partition 150 is just with respect to the setting of first dividing plate 143, and second partition 150 can be a complete cirque body, perhaps only is provided with second partition 150 on rib 15 and becomes an interrupted cirque body also can implement.In like manner, the air-flow that is flow through from follower 141 and work done portion 142 is via the separation of second partition 150, can not can phase mutual interference and cause flow-disturbing, and then promote the utilization efficiency of axial flow fan 1 of the present invention.Other principles about structure and running are all same as the previously described embodiments, do not repeat them here.
The above only is the preferred embodiments of the present invention, and the foregoing description only is to be used for explanation and to be not in order to limiting protection scope of the present invention, and scope of the present invention is defined by claims.All equivalent variations and modifications of having done according to claim of the present invention all should belong to scope of the present invention.
Claims (15)
1. axial flow fan, it comprises:
One pedestal;
One rotor is connected on the described pedestal by one; And
At least one blade, described blade is connected in described rotor, wherein said blade comprises a follower and a work done portion, described follower is positioned at respect to an air outlet place, by the described follower of the airflow passes that described air outlet provided, making described follower is that rotate at the center with described axle, and drives described work done portion synchronously and rotate.
2. axial flow fan as claimed in claim 1, wherein said follower are positioned near the rotor place, and work done portion is positioned at away from the rotor place.
3. axial flow fan as claimed in claim 1, wherein said follower can be with the air-flow separated into two parts that air outlet provided, the draught head that this two-part air-flow produced, can order about follower is that rotate at the center with the axle.
4. axial flow fan as claimed in claim 3, the section shape of wherein said follower are one wing.
5. axial flow fan as claimed in claim 1, wherein said work done portion is center when rotating with the axle, work done portion can make the air pressure at an outlet air end place of axial flow fan less than the air pressure at a wind inlet end place, thereby causes air current flow.
6. axial flow fan as claimed in claim 1, wherein said axle sleeve connect a bearing and then interconnect with pedestal.
7. axial flow fan as claimed in claim 6, wherein said bearing is selected from following group: a bush-type bearing, a ball bearing and a magnetic type bearing.
8. axial flow fan as claimed in claim 1, wherein said blade also comprise one first dividing plate, between follower and work done portion.
9. axial flow fan as claimed in claim 8, the shape of wherein said first dividing plate is a cirque body.
10. axial flow fan as claimed in claim 8, wherein said first dividing plate only are arranged between the follower and work done portion of blade, and its shape is a circular arc cylinder.
11. as claim 1 or 8 described axial flow fans, wherein said axial flow fan also comprises a rib and a shell, this rib connects this shell and pedestal.
12. axial flow fan as claimed in claim 11, wherein said rib also comprises a second partition, is positioned on the rib.
13. axial flow fan as claimed in claim 12, the shape of wherein said second partition is a cirque body.
14. axial flow fan as claimed in claim 12, wherein said second partition only are arranged on the rib, its shape is a circular arc cylinder.
15. an axial flow fan that does not have motor, it comprises:
One pedestal;
One rotor is connected on the described pedestal by one; And
At least one blade, described blade is connected in described rotor, wherein said blade comprises a follower and a work done portion, described driven position is with respect to an air outlet place, wherein said air outlet provides an air-flow as power resources, by the described follower of the airflow passes that described air outlet provided, making described follower is that rotate at the center with described axle, and drives described work done portion synchronously and rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100674363A CN100449151C (en) | 2005-04-21 | 2005-04-21 | Axial-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100674363A CN100449151C (en) | 2005-04-21 | 2005-04-21 | Axial-flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854527A CN1854527A (en) | 2006-11-01 |
| CN100449151C true CN100449151C (en) | 2009-01-07 |
Family
ID=37194909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100674363A Expired - Fee Related CN100449151C (en) | 2005-04-21 | 2005-04-21 | Axial-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449151C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043286U (en) * | 1988-11-15 | 1989-08-23 | 潘天敏 | Pneumatic driven electric fan |
| CN2248789Y (en) * | 1996-02-15 | 1997-03-05 | 王志强 | Plastics axial fan |
| CN1207161A (en) * | 1996-11-12 | 1999-02-03 | 大金工业株式会社 | Axial fan |
| US20010015629A1 (en) * | 2000-02-22 | 2001-08-23 | Delta Electronics Inc. | Structure of plural motor assembly and method for controlling the same |
| US20010028842A1 (en) * | 2000-04-10 | 2001-10-11 | Delta Electronics, Inc. | Parallel fan |
| CN1094177C (en) * | 1998-01-08 | 2002-11-13 | 松下电器产业株式会社 | Air supplying device |
-
2005
- 2005-04-21 CN CNB2005100674363A patent/CN100449151C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043286U (en) * | 1988-11-15 | 1989-08-23 | 潘天敏 | Pneumatic driven electric fan |
| CN2248789Y (en) * | 1996-02-15 | 1997-03-05 | 王志强 | Plastics axial fan |
| CN1207161A (en) * | 1996-11-12 | 1999-02-03 | 大金工业株式会社 | Axial fan |
| CN1094177C (en) * | 1998-01-08 | 2002-11-13 | 松下电器产业株式会社 | Air supplying device |
| US20010015629A1 (en) * | 2000-02-22 | 2001-08-23 | Delta Electronics Inc. | Structure of plural motor assembly and method for controlling the same |
| US20010028842A1 (en) * | 2000-04-10 | 2001-10-11 | Delta Electronics, Inc. | Parallel fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1854527A (en) | 2006-11-01 |
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Granted publication date: 20090107 Termination date: 20190421 |
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| CF01 | Termination of patent right due to non-payment of annual fee |