CN2859018Y - External-polar type centrifugal radiating fan - Google Patents
External-polar type centrifugal radiating fan Download PDFInfo
- Publication number
- CN2859018Y CN2859018Y CN 200520128793 CN200520128793U CN2859018Y CN 2859018 Y CN2859018 Y CN 2859018Y CN 200520128793 CN200520128793 CN 200520128793 CN 200520128793 U CN200520128793 U CN 200520128793U CN 2859018 Y CN2859018 Y CN 2859018Y
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- flabellum
- pedestal
- frame unit
- surrounding wall
- unit
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- 241000883990 Flabellum Species 0.000 claims description 39
- 230000005855 radiation Effects 0.000 claims description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010992 reflux Methods 0.000 abstract description 7
- 230000008676 import Effects 0.000 description 11
- 230000009183 running Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005288 electromagnetic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
An external-polar type centrifugal radiating fan comprises a frame unit and a fan wheel unit which can rotatablely disposed thereon. The frame unit includes a base, a flow concentrating cover disposed on the circum-wall of the base, and a plurality of pole columns interval disposed on the connection board of the flow concentrating cover. The flow concentrating cover and the circum-wall of the base enclosed together to form a flow concentrating space. Each outer fringe of the first fan blade of the fan wheel unit is annularly provided with a magnet ring, which corresponds to each pole column of the frame unit. The designed flow concentrating space can store the air flow primed during operation of the fan wheel unit, achieve the effect of increasing wind pressure, avoid flow reflux to ensure smooth operation, and increase radiating efficiency greatly.
Description
[technical field]
The utility model relates to a kind of radiation fan, particularly relates to a kind of effect that increases blast that reaches, and makes running external pole type centrifugal type radiation fan more smoothly simultaneously.
[background technique]
Common on the market small-sized heat radiating fan mostly is the innerpole fan, just utilizes between the magnet ring be arranged at wheel hub inside and stator and produces mutual expelling force, rotates with respect to stator so as to the blade that drives wheel hub and be linked on the wheel hub.For reaching preferable air-out efficient, this kind innerpole fan must rely on the effectively logical magnetic volume of increase magnet ring, stator to improve repulsion between the two, but relative, the shared volume of whole innerpole fan just enlarges, and is unfavorable for being installed in the less electronic products of volume.
In view of this, industry has been developed the product of a kind of being called " external pole type radiation fan ", as shown in Figure 1, generally be used for central processing unit (CPU), similar operation processing unit, or the external pole type radiation fan 9 that dispels the heat of electronic component such as wafer set, mainly be to be located at impeller 92 on this shell block 91, and one is located on this shell block 91 and cover covers the housing 93 of this impeller 92 and constitutes by a shell block 91.This shell block 91 has several magnetic pole posts 911, and this impeller 92 has a magnet ring 923 that is connected in each flabellum 922 outer rim.General external pole type radiation fan 9 in use, be to magnetic pole post 911 energising, make each magnetic pole post 911 and this magnet ring 923 produce electromagnetic effects and interact, and then borrow the running of this magnet ring 923 to drive each flabellum 922 rotation, just but propellant flows, to reach the purpose of heat radiation.
Though this external pole type radiation fan 9 can dwindle own vol in design, but when these impeller 92 rotations, be back between each flabellum 922 because of turning back when easily making air flow stream to the madial wall of this housing 93, make the air-flow and the air-flow mutual interference mutually that vertically imports of horizontal backflow, and cause the jiggly situation of airflow direction, make this impeller 92 be difficult to reach stable, running effect smoothly.Moreover, this external pole type radiation fan 9 does not have the design that can increase blast yet, therefore, the effect of its air-guiding and increase blast is limited, during especially for high thermoelement (as host computer), too much hot gas accumulates in and causes main frame to damage in the main frame easily, can't reach to meet desirable radiating effect more.
As previously mentioned, present stage the central processing unit (CPU) that adopted of scientific and technological industry, similar operation processing unit, or the operation frequency of electronic component such as wafer set improves day by day, the heat that causes electronic component to be produced when running also can be more and more high, therefore, how more effectively improving the heat sinking function of aforementioned external pole type fan, to improve whole radiating effect, is the important topic of the positive research and development of industrial circle now.
[model utility content]
The purpose of this utility model is to be to provide a kind of blast that increases, and avoids airflow reflux more smooth and easy to guarantee running simultaneously, and can improve the external pole type centrifugal type radiation fan of radiating efficiency.
In order to achieve the above object, the utility model provides a kind of external pole type centrifugal type radiation fan, it is characterized in that:
This external pole type centrifugal type radiation fan includes a frame unit, an and impeller unit of being located on this frame unit, this frame unit comprises a pedestal, one afflux cover, and several magnetic pole posts, this pedestal has a carrier plate, one by the upwardly extending surrounding wall of this carrier plate periphery, an and exhaust outlet that is formed on this surrounding wall, this afflux cover is to cover on the surrounding wall of this pedestal, have one by the top board of this surrounding wall towards the extension of pedestal center direction, one by the downward web that extends of this top board lateral margin, one is formed on the top board and by wind inlet that this web defined, one is extended and is formed with the baffle plate of a spacing with this surrounding wall towards the surrounding wall direction by this web root edge, reach one by this top board, web, the afflux space that the surrounding wall institute one common peripheral of baffle plate and this pedestal sets out, and each magnetic pole post is to be located on the web inner side surface of this afflux cover at interval, this impeller unit is to be located on the pedestal of this frame unit, comprise a wheel hub, several are located at first flabellum on this wheel hub, and one is located on each first flabellum outer rim and corresponding to the magnet ring of each magnetic pole post of this frame unit.
Described external pole type centrifugal type radiation fan is characterized in that: this impeller unit also includes a rotating shaft of rotatably being located on the carrier plate of this pedestal, and this wheel hub is to be located in this rotating shaft to be rotated.
Described external pole type centrifugal type radiation fan is characterized in that: each first flabellum of this impeller unit is that the vertically-arranged portion by this wheel hub extends in the horizontal portion.
Described external pole type centrifugal type radiation fan is characterized in that: each first flabellum of this impeller unit is to be located in the vertically-arranged portion of this wheel hub, and this impeller unit also includes second flabellum in several horizontal portions that are located at this wheel hub.
Described external pole type centrifugal type radiation fan is characterized in that: this frame unit also includes several stator blades of being located at the web of this afflux cover, and each stator blade is between each first flabellum and second flabellum of this impeller unit.
In sum, the utility model external pole type centrifugal type radiation fan mainly is to comprise a frame unit, and an impeller unit of being located on this frame unit.This frame unit comprises that a pedestal, covers the afflux cover on the surrounding wall of this pedestal, reach the magnetic pole post on several webs of being located at this afflux cover at interval, and the surrounding wall one common peripheral of this afflux cover and pedestal sets out an afflux space.This impeller unit then comprises the wheel hub be located on this pedestal, several are located at first flabellum on this wheel hub, and one is located on each first flabellum outer rim and corresponding to the magnet ring of each magnetic pole post of this frame unit.The utility model sets out an afflux space by afflux cover and this pedestal one common peripheral of this frame unit, the air ring that makes this impeller unit be sucked when turning round is around in this afflux space, to form the effect that air-flow stores, so, just can compile mutually with the air-flow that this impeller unit is introduced simultaneously, and can reach the effect that increases blast.In addition, when air-flow imports between this each first flabellum, can take in the air-flow that partly imports by the afflux space in the afflux cover that is formed at this frame unit, and can not make airflow reflux between each first flabellum, and can avoid causing the jiggly situation of airflow direction, more stable, smooth and easy when this impeller unit is turned round, and can significantly improve whole radiating efficiency.
[description of drawings]
Fig. 1 is the user mode side view cutaway drawing of general external pole type radiation fan.
Fig. 2 is the three-dimensional exploded view of the utility model external pole type centrifugal type radiation fan first preferred embodiment.
Fig. 3 is the side view cutaway drawing of the utility model external pole type centrifugal type radiation fan first preferred embodiment.
Fig. 4 is the side view cutaway drawing of the utility model external pole type centrifugal type radiation fan second preferred embodiment.
Fig. 5 is the side view cutaway drawing of the utility model external pole type centrifugal type radiation fan the 3rd preferred embodiment.
[embodiment]
Before the utility model is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Shown in Fig. 2,3, first preferred embodiment of the utility model external pole type centrifugal type radiation fan 5 comprises a frame unit 6, and an impeller unit 7 of being located on this frame unit 6.
This frame unit 6 comprises that a pedestal 61, is located at the afflux cover 62 on this pedestal 61, and several are located at the magnetic pole post 63 on this afflux cover 62 at interval.This pedestal 61 has a carrier plate 611, by the upwardly extending surrounding wall 612 of these carrier plate 611 peripheries, and an exhaust outlet 610 that is formed at these surrounding wall 612 lateral margins.This afflux cover 62 has that web 622, that a top board that is extended towards pedestal 61 center direction by this surrounding wall 612 621, extends by these top board 621 lateral margins is formed on the top board 621 downwards and the wind inlet that defined by these web 622 madial walls 600, is extended and is formed with the baffle plate 623 of a spacing with this surrounding wall 612 towards surrounding wall 612 directions by these web 622 root edges, and an afflux space 620 that is set out by 612 one common peripheral of surrounding wall of this top board 621, web 622, baffle plate 623 and this pedestal 61.And each magnetic pole post 63 is to be located on web 622 inner side surfaces of this afflux cover 62 at interval, and this magnetic pole post 63 is stator frames 631 of being located on this web 622 by one, and the coil 632 that is set around on this stator frame 631 is formed.
This impeller unit 7 is to be located on the pedestal 61 of this frame unit 6, comprise that one is located at rotatably that wheel hub 72 in this rotating shaft 71 is located in rotating shaft 71, on the carrier plate 611 of this pedestal 61, several are located at first flabellum 73 on this wheel hub 72, and one is located on each first flabellum, 73 outer rim and corresponding to the magnet ring 74 of each magnetic pole post 63 of this frame unit 6.This wheel hub 72 has the vertically-arranged portion 721 that a wind inlet 600 by this afflux cover 62 is directed downwards extension again, and one is connected in this vertically-arranged portion 721 and bends the horizontal portion 722 that prolongs towards surrounding wall 612 directions of this pedestal 61.Moreover each first flabellum 73 of this impeller unit 7 is that the vertically-arranged portion 721 by this wheel hub 72 extends in the horizontal portion 722.
Again as shown in Figure 3, when each magnetic pole post 63 energising, when each magnetic pole post 63 is interacted with the magnet ring 74 generation electromagnetic effects of this impeller unit 7, just can drive whole impeller unit 7 with respect to these frame unit 6 rotations to this frame unit 6.This impeller unit 7 is in when running, and each first flabellum 73 just can be imported air-flows and air-guiding by the wind inlet 600 of top to be changeed by side direction and discharge towards exhaust outlet 610, by the air current flow that is produced to disperse the high heat that the electronic component (not shown) is produced.On the other hand, because the top board 621 of this afflux cover 62, web 622, baffle plate 623 set out an afflux space 620 with surrounding wall 612 one common peripheral of this pedestal 61, therefore, by the air-flow in this this frame unit 6 of impeller unit 7 importings, also can be simultaneously flow in this afflux space 620, and be surrounded in this afflux space 620 and effect that the formation air-flow stores by the spacing of 612 of the surrounding walls of the baffle plate 623 of this afflux cover 62 and pedestal 61.In other words, be rotated when this impeller unit 7 and import, when discharging air-flow, can take in the air-flow that partly imports in the afflux cover 62 of this frame unit 6, significantly reduce airflow reflux between each first flabellum 73 simultaneously, avoid causing the jiggly situation of airflow direction.
It is aforementioned to continue, by two strands of air-flows in wind inlet 600 air-flow that imports of these 7 tops, impeller unit and the afflux cover 62 when compiling mutually, just can reach the effect that increases blast, this is that the blast that phase-polymerization is formed because this moment compiles two strands of air-flows in this frame unit 6 significantly increases, so the air-out blast that each first flabellum 73 of this impeller unit 7 is derived becomes big, and can be under the situation that does not increase volume and rotation speed of the fan, reach the stronger wind-force that goes out, electronic component is produced bigger heat radiation function.In addition, when air-flow imports between this each first flabellum 73, can take in the air-flow that partly imports by formed afflux space 620 in the afflux cover 62 of this frame unit 6, and can not make airflow reflux between each first flabellum 73, thereby can avoid causing the jiggly situation of airflow direction, more stable, smooth and easy when this impeller unit 7 is turned round.
Consult Fig. 4, second preferred embodiment of the utility model external pole type centrifugal type radiation fan 5 comprises a frame unit 6 equally, and an impeller unit 7 of being located at this frame unit 6.The place that is different from first preferred embodiment is: each first flabellum 73 of this impeller unit 6 is to be located in the vertically-arranged portion 721 of this wheel hub 72, and this impeller unit 6 also includes second flabellum 75 in several horizontal portions 722 that are located at this wheel hub 72.Present embodiment is respectively equipped with two first flabellum 73 that is separated and second flabellums 75 in the vertically-arranged portion 721 of this wheel hub 72 and horizontal portion 722, can continue by this first flabellum 73 and second flabellum 75 equally imports air-flows and air-guiding by wind inlet 600 and changes by side direction and discharge towards exhaust outlet 610, and reaches the heat effect of loosing.Similarly, also can be by the design in this afflux space 620, the air-flow that is produced when storing by 7 runnings of this impeller unit, and reach the effect that increases blast.In addition, also can avoid causing the jiggly situation of airflow direction, more stable, smooth and easy when this impeller unit 7 is turned round.
Consult Fig. 5, the 3rd preferred embodiment of the utility model external pole type centrifugal type radiation fan 5 comprises a frame unit 6 equally, and an impeller unit 7 of being located at this frame unit 6.The place that is different from second preferred embodiment is: this frame unit 6 also includes the stator blade 64 of several webs of being located at this afflux cover 62 622, and each stator blade 64 is between each first flabellum 73 and second flabellum 75 of this impeller unit 7.Present embodiment is provided with several stator blades 64 by the web 622 of this afflux cover 62, but the air-flow that imported by each first flabellum 73 of this impeller unit 7 of correcting more, the air-flow that making continues imports this second flabellum 75 is more stable, and can avoid blast to produce bigger variation.Certainly, the external pole type centrifugal type radiation fan 5 of present embodiment is when real-world operation, can form high pressure draught and take in the air-flow that partly imports by this afflux space 620 equally, to produce stronger going out wind-force and avoid airflow reflux, the running of guaranteeing this impeller unit 7 is smooth and easy, and electronic component is produced bigger heat radiation function.
In sum, the utility model external-polar type centrifugal radiating fan 5 and general radiation air Fan in comparison, decapacitation reaches outside the effect that increases blast, can avoid airflow reflux with really simultaneously The running of protecting this impeller unit 7 is smooth and easy, and then can improve integral heat sink efficient, therefore really can Reach the purpose of this utility model.
Claims (5)
1. external pole type centrifugal type radiation fan is characterized in that:
This external pole type centrifugal type radiation fan includes a frame unit, an and impeller unit of being located on this frame unit, this frame unit comprises a pedestal, one afflux cover, and several magnetic pole posts, this pedestal has a carrier plate, one by the upwardly extending surrounding wall of this carrier plate periphery, an and exhaust outlet that is formed on this surrounding wall, this afflux cover is to cover on the surrounding wall of this pedestal, have one by the top board of this surrounding wall towards the extension of pedestal center direction, one by the downward web that extends of this top board lateral margin, one is formed on the top board and by wind inlet that this web defined, one is extended and is formed with the baffle plate of a spacing with this surrounding wall towards the surrounding wall direction by this web root edge, reach one by this top board, web, the afflux space that the surrounding wall institute one common peripheral of baffle plate and this pedestal sets out, and each magnetic pole post is to be located on the web inner side surface of this afflux cover at interval, this impeller unit is to be located on the pedestal of this frame unit, comprise a wheel hub, several are located at first flabellum on this wheel hub, and one is located on each first flabellum outer rim and corresponding to the magnet ring of each magnetic pole post of this frame unit.
2. external pole type centrifugal type radiation fan as claimed in claim 1 is characterized in that: this impeller unit also includes a rotating shaft of rotatably being located on the carrier plate of this pedestal, and this wheel hub is to be located in this rotating shaft.
3. external pole type centrifugal type radiation fan as claimed in claim 1 or 2 is characterized in that: each first flabellum of this impeller unit is that the vertically-arranged portion by this wheel hub extends in the horizontal portion.
4. external pole type centrifugal type radiation fan as claimed in claim 1 or 2 is characterized in that: each first flabellum of this impeller unit is to be located in the vertically-arranged portion of this wheel hub, and this impeller unit also includes second flabellum in several horizontal portions that are located at this wheel hub.
5. external pole type centrifugal type radiation fan as claimed in claim 4, it is characterized in that: this frame unit also includes several stator blades of being located at the web of this afflux cover, and each stator blade is between each first flabellum and second flabellum of this impeller unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128793 CN2859018Y (en) | 2005-12-30 | 2005-12-30 | External-polar type centrifugal radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128793 CN2859018Y (en) | 2005-12-30 | 2005-12-30 | External-polar type centrifugal radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859018Y true CN2859018Y (en) | 2007-01-17 |
Family
ID=37611877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520128793 Expired - Lifetime CN2859018Y (en) | 2005-12-30 | 2005-12-30 | External-polar type centrifugal radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859018Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338767B (en) * | 2007-07-06 | 2010-12-01 | 富准精密工业(深圳)有限公司 | Fan leaf structure and centrifugal fan adopting the fan leaf structure |
| CN101672297B (en) * | 2008-09-11 | 2012-07-18 | 富准精密工业(深圳)有限公司 | Radiation fan and radiation device with same |
-
2005
- 2005-12-30 CN CN 200520128793 patent/CN2859018Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338767B (en) * | 2007-07-06 | 2010-12-01 | 富准精密工业(深圳)有限公司 | Fan leaf structure and centrifugal fan adopting the fan leaf structure |
| CN101672297B (en) * | 2008-09-11 | 2012-07-18 | 富准精密工业(深圳)有限公司 | Radiation fan and radiation device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |