CN201723471U - Cooling fan - Google Patents
Cooling fan Download PDFInfo
- Publication number
- CN201723471U CN201723471U CN2010202622980U CN201020262298U CN201723471U CN 201723471 U CN201723471 U CN 201723471U CN 2010202622980 U CN2010202622980 U CN 2010202622980U CN 201020262298 U CN201020262298 U CN 201020262298U CN 201723471 U CN201723471 U CN 201723471U
- Authority
- CN
- China
- Prior art keywords
- connecting part
- radiation fan
- fixed base
- hollow shape
- lower cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 claims description 33
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A cooling fan comprises a frame unit, an impeller unit and a driving unit, wherein the impeller unit is arranged inside the frame unit, and the driving unit is used for driving the impeller unit. The frame unit includes a fixing seat; and the impeller unit includes a hub, a plurality of blades and a fixing ring, wherein the hub is rotatably pivoted on the fixing seat, the blades mutually spaced extend outwards from the hub, and the fixing ring is connected with the outer end edges of the blades. Besides, a connecting section and an extending section are arranged at the outer end edge of each blade, wherein the connecting section is connected onto the fixing ring, and the extending section extends outside the fixing ring in a projecting manner. As the extending section at the outer end edge of each blade extends outside the fixed ring in the projecting manner, the blades can generate more airflow while rotating and further increase air outlet volume.
Description
Technical field
The utility model relates to a kind of fan, particularly relates to a kind of radiation fan.
Background technique
Consult Fig. 1, existing external pole type radiation fan 1 comprises a body 11, an impeller 12, a shell 13, and a circuit board 14.This body 11 is to engage up and down with this shell 13, this body 11 has one and is positioned at the drive-connecting shaft 111 of central authorities, most the magnetic poles 112 that are arranged on this body 11 at intervals and are positioned at these drive-connecting shaft 111 outsides, and most the ring-type conduction elements 113 that are installed in 112 of two adjacent magnetic poles respectively, this circuit board 14 is electrically connected with described magnetic pole 112.This impeller 12 has one and is articulated in wheel hub 121 on this drive-connecting shaft 111, most from the outward extending at intervals flabellum 122 of this wheel hub 121 rotationally, and a magnet ring 123 that is sheathed on described flabellum 122 external end edges.
The electromagnet that described magnetic pole 112 twines for coil, when described magnetic pole 112 energising magnetic swash, the magnetic field that described conduction element 113 can be produced each magnetic pole 112 is linked, and and one strong magnetic repulsive force of 123 formation of this magnet ring, make this magnet ring 123 be able under the effect of this magnetic repulsive force, drive this impeller 12 and be rotated.
Yet, because the upper and lower end of described flabellum 122 all is the form that does not protrude in this magnet ring 123, therefore the air-flow that can drive during flabellum 122 rotations of this impeller 12 can be subjected to this magnet ring 123 and stops and reduce, and then the air output when reducing described flabellum 122 and rotating.
Summary of the invention
The purpose of this utility model is to provide a kind of radiation fan that can increase air output.
For achieving the above object, the utility model radiation fan is characterized in that: include:
A frame unit comprises a fixed base;
An impeller unit, comprise that wheel hub, the majority that can be articulated in rotatably on this fixed base is individual at intervals by the outward extending blade of this wheel hub, and retaining ring that connects described blade external end edge, each blade external end edge has a linkage section that is connected on this retaining ring, and one is stretched on the outer extension of this retaining ring; And
A driver element is in order to drive this impeller unit rotational.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, described radiation fan, wherein this frame unit also includes a central siphon that is arranged on this fixed base, this driver element comprise that a stator that is arranged at this central siphon outer circumferential face, circuit board that is arranged at this central siphon outer circumferential face and is electrically connected on this stator, one are arranged at this wheel hub inner peripheral surface and to magnet ring that should stator, at least one is arranged at the bearing in this central siphon, and rotating shaft that is inserted in this bearing and is arranged in this wheel hub.
Preferably, described radiation fan, wherein this frame unit comprises that also is arranged at a driving piece that articulates for this wheel hub on this fixed base, this driver element comprises most the magnetic poles that are arranged at intervals on this fixed base and are positioned at this outside, impeller unit, most the conduction elements that connect two adjacent magnetic poles respectively, and a circuit board that is electrically connected described magnetic pole, this retaining ring is the magnet ring form.
Preferably, described radiation fan, wherein this fixed base has a loam cake, and lower cover that can be incorporated into this loam cake with separating, this loam cake has one and is surrounded on this retaining ring outside and the central ring frame portion of going up that is hollow shape, and last connecting part by ring frame subordinate periphery side extending on this, this lower cover has a following connecting part corresponding to connecting part on this, one is extended by this time connecting part inner circumference edge and central authorities are hollow shape to going up ring frame portion following ring frame portion, most bars encircle frame portion away from the rib that extends in one side direction of this time connecting part by this time, and a base portion that connects described rib, this central siphon is to be arranged on this base portion.
Preferably, described radiation fan, wherein this fixed base has the loam cake that central authorities are hollow shape, reach one and can be incorporated into this loam cake and the central lower cover that is hollow shape with separating, this loam cake has a leg portion that is surrounded on the described magnetic pole outside, and one extended internally by this leg portion upper peripheral edge and central authorities are the last connecting part of hollow shape, this lower cover has the following connecting part that central authorities are hollow shape, the rib that most bars are extended internally by this time connecting part, and base portion that connects described rib, described magnetic pole, this circuit board is to be arranged on this time connecting part, and this driving piece is to be arranged on this base portion.
Preferably, described radiation fan, wherein this fixed base has a lower cover, this lower cover has central authorities and is rib, base portion that connects described rib that the following connecting part of hollow shape, most bar are extended internally by this time connecting part, and most the locking parts that are arranged at intervals on this time connecting part, this central siphon is to be arranged on this base portion.
Preferably, described radiation fan, wherein the extension height of each blade external end edge be between this linkage section height 1/3 to 1/2 between.
The beneficial effects of the utility model are, are to be stretched on outside this retaining ring by the extension of each blade external end edge, and therefore described blade can produce more air-flow when rotated, and then increases air output.
Description of drawings
Fig. 1 is a three-dimensional exploded view, and existing external pole type fan is described;
Fig. 2 is a stereogram, and first preferred embodiment of the utility model radiation fan is described, in the present embodiment, this radiation fan is an innerpole fan;
Fig. 3 is a worm's eye view, in this first preferred embodiment of aid illustration, and the lower cover structure of fixed base;
Fig. 4 is a sectional view, the structure of driving unit in this first preferred embodiment of aid illustration, and the relative position of blade and retaining ring;
Fig. 5 is a three-dimensional exploded view, and second preferred embodiment of the utility model radiation fan is described, in the present embodiment, this radiation fan is an external pole type fan;
Fig. 6 is a three-dimensional exploded view, and the 3rd preferred embodiment of the utility model radiation fan is described, in the present embodiment, this radiation fan is an innerpole fan;
Fig. 7 is a sectional view, aid illustration the 3rd preferred embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Before the utility model is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Consult Fig. 2, be first preferred embodiment of the utility model radiation fan, in the present embodiment, this radiation fan is an innerpole fan, and comprise a frame unit 2, and be arranged at impeller unit 3 in this frame unit 2, and one in order to drive the driver element 4 that this impeller unit 3 rotates.
Consult Fig. 2 to 4, this frame unit 2 comprises a fixed base 21, an and central siphon 22 that is arranged on this fixed base 21, this fixed base 21 has a loam cake 211, and the lower cover 212 that can be incorporated into this loam cake 211 with separating, this loam cake 211 has one and is surrounded on these 3 outsides, impeller unit and the central ring frame portion 213 of going up that is hollow shape, reach a last connecting part 214 by ring frame portion 213 lower periphery side extendings on this, this lower cover 212 has a following connecting part 215 corresponding to connecting part on this 214, one by this time connecting part 215 inner circumference edges extend and central authorities are hollow shape to going up ring frame portion 213 following ring frame portion 216, most bars are by the rib 217 that extends in the side direction of this time ring frame portion 216 away from this time connecting part 215, and the base portion 218 of the described rib 217 of a connection, this central siphon 22 is to be arranged on this base portion 218.What specify is that the structure of this loam cake 211, lower cover 212 is the enforcement aspect of present embodiment, knows usually that for having in the affiliated technical field the knowledgeable can change easily, should not exceed with the disclosed content of present embodiment.
Consult Fig. 2,4, this impeller unit 3 comprises that one can be articulated in wheel hub 31 on this central siphon 22, majority rotatably at intervals by these wheel hub 31 outward extending blades 32, and the retaining ring 33 of the external end edge 321 of the described blade 32 of a connection, the external end edge 321 of each blade 32 has a linkage section 322 that is connected on this retaining ring 33, and an extension 323 that is stretched on outside this retaining ring 33.
The extension 323 height h of the external end edge 321 of each blade 32 be between these linkage section 322 height H 1/3 to 1/2 between, be to illustrate in Fig. 4 with 1/2 ratio, the variation of certain aforementioned height is the enforcement aspect of present embodiment, usually know that for having in the affiliated technical field the knowledgeable can change easily, should not exceed with the disclosed content of present embodiment.
Consult Fig. 4, this driver element 4 comprises that circuit board 42, that a stator 41, that is arranged at these central siphon 22 outer circumferential faces is arranged at these central siphon 22 outer circumferential faces and is electrically connected on this stator 41 is arranged at these wheel hub 31 inner peripheral surfaces and to magnet ring 43, at least one bearing 44 that is arranged in this central siphon 22 that should stator 41, and one is inserted in this bearing 44 and is arranged in the rotating shaft 45 of this wheel hub 31.In the present embodiment, the quantity of described bearing 44 is two.
By above-mentioned design, the utility model radiation fan has the advantage of the following stated when reality is used:
(1) air output is bigger:
Because the extension 323 of the external end edge 321 of each blade 32 is to be stretched on outside this retaining ring 33, therefore described blade 32 can produce more air-flow when rotated, and then increase air output, simultaneously can also be according to the demand on using, change the ratio of this extension 323 and linkage section 322, and change the throughput that produces when described blade 32 rotates.
(2) effectively reduce noise:
Because the extension 323 of the external end edge 321 of each blade 32 is to be stretched on outside this retaining ring 33, therefore described blade 32 when rotated, the gas backstreaming that corresponding extension 323 is produced when rotated, can effectively offset and reduce the noise that described blade 32 rotations produce, promote the quality on using.
Consult Fig. 5, second preferred embodiment for the utility model radiation fan, in present embodiment, this radiation fan is an external pole type fan, the fixed base 51 of frame unit 5 has a loam cake 511, an and lower cover 512 that is incorporated into this loam cake 511 removably, this loam cake 511 has a leg portion 513, and one extended internally and central authorities are the last connecting part 514 of hollow shape by these leg portion 513 upper peripheral edges, this lower cover 512 has the following connecting part 515 that central authorities are hollow shape, the rib 516 that most bars are extended internally by this time connecting part 515, and a base portion 517 that connects described rib 516, this frame unit 5 also comprises a driving piece 52 that is arranged on the base portion 517 of this lower cover 512 and articulates for the wheel hub 61 of this impeller unit 6.What specify is that the structure of this loam cake 511, lower cover 512 is the enforcement aspect of present embodiment, knows usually that for having in the affiliated technical field the knowledgeable can change easily, should not exceed with the disclosed content of present embodiment.
Whereby, this radiation fan also provides another kind of different structure aspect except reaching the effect identical with aforementioned first preferred embodiment, can elect according to actual demand when using.
Consult Fig. 6,7, the 3rd preferred embodiment for the utility model radiation fan, roughly identical with aforementioned this first preferred embodiment, different places is to be: 81 of fixed bases have a lower cover 811, this lower cover 811 has central authorities and is the base portion 814 that rib 813, that the following connecting part 812 of hollow shape, most bar extend internally by this time connecting part 812 connects described rib 813, and most the locking parts 815 that are arranged at intervals on this time connecting part 812.
Present embodiment by the design of described locking part 815, can also directly be locked on this radiation fan on one computer chassis (figure does not show), and the another kind of aspect of using is provided except the effect that can reach aforementioned first preferred embodiment.
By above explanation as can be known, the utility model radiation fan is to be stretched on outside the retaining ring by the extension of the external end edge of each blade, and therefore described blade is when rotated except producing more air-flow, increase outside the air output, more can effectively reduce the noise that produces when described blade rotates.
Claims (7)
1. radiation fan is characterized in that: include:
A frame unit comprises a fixed base;
An impeller unit, comprise that wheel hub, the majority that can be articulated in rotatably on this fixed base is individual at intervals by the outward extending blade of this wheel hub, and retaining ring that connects described blade external end edge, each blade external end edge has a linkage section that is connected on this retaining ring, and one is stretched on the outer extension of this retaining ring; And
A driver element is in order to drive this impeller unit rotational.
2. radiation fan according to claim 1, it is characterized in that: this frame unit also includes a central siphon that is arranged on this fixed base, this driver element comprise that a stator that is arranged at this central siphon outer circumferential face, circuit board that is arranged at this central siphon outer circumferential face and is electrically connected on this stator, one are arranged at this wheel hub inner peripheral surface and to magnet ring that should stator, at least one is arranged at the bearing in this central siphon, and rotating shaft that is inserted in this bearing and is arranged in this wheel hub.
3. radiation fan according to claim 1, it is characterized in that: this frame unit comprises that also is arranged at a driving piece that articulates for this wheel hub on this fixed base, this driver element comprises most the magnetic poles that are arranged at intervals on this fixed base and are positioned at this outside, impeller unit, most the conduction elements that connect two adjacent magnetic poles respectively, and a circuit board that is electrically connected described magnetic pole, this retaining ring is the magnet ring form.
4. radiation fan according to claim 2, it is characterized in that: this fixed base has a loam cake, and lower cover that can be incorporated into this loam cake with separating, this loam cake has one and is surrounded on this retaining ring outside and the central ring frame portion of going up that is hollow shape, and last connecting part by ring frame subordinate periphery side extending on this, this lower cover has a following connecting part corresponding to connecting part on this, one is extended by this time connecting part inner circumference edge and central authorities are hollow shape to going up ring frame portion following ring frame portion, most bars encircle frame portion away from the rib that extends in one side direction of this time connecting part by this time, and a base portion that connects described rib, this central siphon is to be arranged on this base portion.
5. radiation fan according to claim 3, it is characterized in that: this fixed base has the loam cake that central authorities are hollow shape, reach one and can be incorporated into this loam cake and the central lower cover that is hollow shape with separating, this loam cake has a leg portion that is surrounded on the described magnetic pole outside, and one extended internally by this leg portion upper peripheral edge and central authorities are the last connecting part of hollow shape, this lower cover has the following connecting part that central authorities are hollow shape, the rib that most bars are extended internally by this time connecting part, and base portion that connects described rib, described magnetic pole, this circuit board is to be arranged on this time connecting part, and this driving piece is to be arranged on this base portion.
6. radiation fan according to claim 2, it is characterized in that: this fixed base has a lower cover, this lower cover has central authorities and is rib, base portion that connects described rib that the following connecting part of hollow shape, most bar are extended internally by this time connecting part, and most the locking parts that are arranged at intervals on this time connecting part, this central siphon is to be arranged on this base portion.
7. radiation fan according to claim 1 is characterized in that: the extension height of each blade external end edge be between this linkage section height 1/3 to 1/2 between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622980U CN201723471U (en) | 2010-07-19 | 2010-07-19 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202622980U CN201723471U (en) | 2010-07-19 | 2010-07-19 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723471U true CN201723471U (en) | 2011-01-26 |
Family
ID=43491792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202622980U Expired - Fee Related CN201723471U (en) | 2010-07-19 | 2010-07-19 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728134A (en) * | 2013-11-25 | 2015-06-24 | 依必安派特穆尔芬根股份有限公司 | Modular fan unit |
| CN112096632A (en) * | 2019-06-17 | 2020-12-18 | 莱维特朗尼克斯有限责任公司 | Fan with cooling device |
-
2010
- 2010-07-19 CN CN2010202622980U patent/CN201723471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728134A (en) * | 2013-11-25 | 2015-06-24 | 依必安派特穆尔芬根股份有限公司 | Modular fan unit |
| CN112096632A (en) * | 2019-06-17 | 2020-12-18 | 莱维特朗尼克斯有限责任公司 | Fan with cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20110719 |