CN201255142Y - External pole type cooling fan - Google Patents
External pole type cooling fan Download PDFInfo
- Publication number
- CN201255142Y CN201255142Y CNU2008201295293U CN200820129529U CN201255142Y CN 201255142 Y CN201255142 Y CN 201255142Y CN U2008201295293 U CNU2008201295293 U CN U2008201295293U CN 200820129529 U CN200820129529 U CN 200820129529U CN 201255142 Y CN201255142 Y CN 201255142Y
- Authority
- CN
- China
- Prior art keywords
- base
- impeller unit
- air
- bedplate
- stator
- 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 description 2
- 230000005855 radiation Effects 0.000 claims description 17
- 230000003993 interaction Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 4
- 241000883990 Flabellum Species 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an external-pole radiator fan, which comprises a bedplate, a shell seat connected with the bedplate, an impeller unit arranged on the bedplate and a driving unit arranged on the bedplate and used for driving the impeller unit to turn. A base part spaced from the bedplate body, at least one first air inlet formed on the base part, a surrounding part annularly arranged on the base part and connected with the bedplate body and a plurality of second air inlets alternately formed on the surrounding part are arranged on the shell seat. The external-pole radiator fan uses the second air inlets so that the impeller unit can provide excessive lateral inlet air when the impeller unit turns, and increases the total inlet air together with the axial inlet air from the first air inlets, thus generating larger air output and effectively improving the heat elimination efficiency.
Description
[technical field]
The utility model relates to a kind of radiation fan, particularly relates to a kind of external pole type radiation fan.
[background technique]
As shown in Figure 1, existing external pole type radiation fan 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, and define a containing space 110 with matching, the magnetic pole 112, one that this body 11 has a drive-connecting shaft 111 that is positioned at central authorities, several are arranged on this body 11 at intervals and be positioned at these drive-connecting shaft 111 outsides is installed in the ring-type conduction element 113 on the described magnetic pole 112, and several exhaust outlets 114.This impeller 12 is to be positioned at this containing space 110, and have one be articulated in wheel hub 121 on this drive-connecting shaft 111 rotationally, several are from the outward extending at intervals flabellum 122 of these wheel hub 121 peripheries, an and magnet ring 123 that is sheathed on the external end edge of described flabellum 122.Be formed with a wind inlet 131 on this shell 13.
This circuit board 14 is to be electrically connected with described magnetic pole 112, and the electromagnet that described magnetic pole 112 twines for coil, when described magnetic pole 112 energising magnetic swash, the magnetic field that this conduction element 113 will be produced each magnetic pole 112 is linked, and and this magnet ring 123 between form one strong magnetic repulsive force, make this magnet ring 123 be able under the effect of this magnetic repulsive force, drive this impeller 12 and be rotated smoothly, and produce one flows to described exhaust outlet 114 from this wind inlet 131 air-flow.
But, the throughput that radiating efficiency and its produced (air output) of external pole type radiation fan is proportional, and air output depends on exactly into air quantity, therefore how to improve existing external pole type cooling fan structure, making it can provide bigger and go into air quantity with the bigger air output of relative generation, is one of the key that promotes the radiating efficiency of this external pole type radiation fan.
[model utility content]
The purpose of this utility model is to be to provide a kind of can effectively promote into air quantity promoting relative air output, and then makes the external pole type radiation fan of better heat-radiation effect.
External pole type radiation fan of the present utility model comprises a base, a shell block, an impeller unit, and a driver element.This base has a body, and is located at driving piece on this body, and several are formed at the exhaust outlet on this body.This shell block have one with separately base portion of the body of this base, at least one be formed at first wind inlet, on this base portion be located on this base portion and be connected with the body of this base around portion, and several are formed at this second wind inlet in the portion at intervals, and this base portion and this define a containing space around portion with the body of this base with matching.This impeller unit is to be positioned at this containing space, and have one rotatably be hubbed at wheel hub on this driving piece, several pieces are by these wheel hub outer periphery outward extending blade at interval, an and magnet ring that is arranged at the external end edge of described blade.This driver element has at least one stator, and a circuit board that is electrically connected to this stator, and this stator is to be arranged to produce on the position of electro permanent magnetic interaction with the magnet ring of this impeller unit.
Effect of the present utility model is, utilization is formed at second wind inlet in the portion of this shell block, make this impeller unit can provide its extra side direction to go into air quantity when rotated, and increase the whole air quantity of always going into the air quantity of axially going into of described first wind inlet with matching, producing one bigger air output whereby, and then effectively promote its heat dissipation.
[description of drawings]
Fig. 1 is a three-dimensional exploded view, and existing external pole type radiation fan is described;
Fig. 2 is a three-dimensional exploded view, and the preferred embodiment of the utility model external pole type radiation fan is described; And
Fig. 3 is a sectional view, and the air current flow route of this preferred embodiment is described.
[embodiment]
Below in conjunction with drawings and Examples the utility model is elaborated:
Consult Fig. 2,3, the preferred embodiment of the utility model external pole type radiation fan comprises a base 2, a shell block 3, an impeller unit 4, and a driver element 5.
This base 2 has a body 21, and is located at driving piece 23 on this body 21, and several are formed at the exhaust outlet 22 on this body 21.
This shell block 3 have one with separately base portion 31 of the body 21 of this base 2, several be formed at first wind inlet 32, on this base portion 31 be located on this base portion 31 and be connected with the body 21 of this base 2 around portion 33, and several are formed at this second wind inlet 34 in the portion 33 at intervals, and this base portion 31 and this define a containing space 35 around 33 in portion with the body 21 of this base 2 with matching.
This impeller unit 4 is to be arranged in this containing space 35, and have one rotatably be hubbed at wheel hub 41 on the driving piece 23 of this base 2, several pieces are by these wheel hub 41 outer periphery outward extending blade 42 at interval, an and magnet ring 43 that is arranged at the external end edge of described blade 42.
This driver element 5 has a stator 51, an and circuit board 52 that is electrically connected to this stator 51, this stator 51 has one and extends to form and be arranged at two poles 511 on this circuit board 52, and one give continuous induction coil wound 512 with described pole 511, and this inductor coil 512 is to be electrically connected on this circuit board 52.Described pole 511 is the outsides that are positioned at contiguous this magnet ring 43, and can produce on the position of electro permanent magnetic interaction with this magnet ring 43, and this circuit board 52 is to be electrically connected with the power supply in the external world, and after this circuit board 52 is via extraneous power supply energising running, just can make these inductor coil 512 conductions and produce alternating magnetic field with described pole 511, and then repel each other to rotate with the magnetic force of this magnet ring 43, and drive this wheel hub 41, blade 42 and rotate synchronously, and produce one flows to described exhaust outlet 22 from this first and second wind inlet 32,34 air-flow.
The effect of present embodiment is, utilization is formed at this second wind inlet 34 in the portion 33 so that the inlet air passage (shown in arrow among Fig. 3) of side direction to be provided, the axial inlet air passage that cooperates described first wind inlet 32 to be provided again, rotate and when producing blast with blade 42 in this impeller unit 4, provide ambient air the passages that enter in this containing space 35 more, to increase whole air inflow, and then the air output that institute produces relatively when improving 42 rotations of described blade, make this external pole type radiation fan help the integral heat sink usefulness of heater element (scheming not show) of heat radiation better to its desire.
Be noted that at this, in the present embodiment, be to adopt the mode of single stator 51 to drive this impeller unit 4, but also can adopt the enforcement aspect of several stators 51 to carry out the driving of this impeller unit 4, considering and decide when looking closely actual enforcement should not be limited to the disclosed particular aspect of present embodiment.
Conclude above-mentioned, external pole type radiation fan of the present utility model, utilization is formed at second wind inlet 34 in the portion 33 of this shell block 3, make this impeller unit 4 can provide its extra side direction to go into air quantity when rotated, to increase whole total air inflow whereby, and then make air output also can increase and improve the heat dissipation of external pole type radiation fan relatively, so can reach the purpose of this utility model really.
Claims (2)
1. external pole type radiation fan, comprise: a base, a shell block, an impeller unit, and driver element, this base has a body, a driving piece of being located on this body, and several are formed at the exhaust outlet on this body, this shell block has a body base portion separately with this base, at least one is formed at first wind inlet on this base portion, and portion that centers on that is located on this base portion and is connected with the body of this base, this base portion and this then define a containing space with the body of this base around portion with matching, this impeller unit is positioned at this containing space, and has a wheel hub that rotatably is hubbed on this driving piece, several pieces are by this outward extending blade in wheel hub outer periphery interval, and magnet ring that is arranged at the external end edge of described blade, this driver element has at least one stator, and circuit board that is electrically connected to this stator, this stator is arranged at and can produces on the position of electro permanent magnetic interaction with the magnet ring of this impeller unit, it is characterized in that: this shell block also has several and is formed at this second wind inlet in the portion at intervals.
2. external pole type radiation fan as claimed in claim 1 is characterized in that: this stator has two poles that one extends to form, and one give continuous induction coil wound with described pole, and this inductor coil is electrically connected on this circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201295293U CN201255142Y (en) | 2008-08-25 | 2008-08-25 | External pole type cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201295293U CN201255142Y (en) | 2008-08-25 | 2008-08-25 | External pole type cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255142Y true CN201255142Y (en) | 2009-06-10 |
Family
ID=40738458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201295293U Expired - Fee Related CN201255142Y (en) | 2008-08-25 | 2008-08-25 | External pole type cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255142Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136940A1 (en) * | 2018-01-13 | 2019-07-18 | 广东美的环境电器制造有限公司 | Air duct assembly for axial fan |
| CN111249670A (en) * | 2020-03-11 | 2020-06-09 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
-
2008
- 2008-08-25 CN CNU2008201295293U patent/CN201255142Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136940A1 (en) * | 2018-01-13 | 2019-07-18 | 广东美的环境电器制造有限公司 | Air duct assembly for axial fan |
| EP3726061A1 (en) * | 2018-01-13 | 2020-10-21 | GD Midea Environment Appliances MFG Co., Ltd. | Air duct assembly for axial fan |
| EP3726061A4 (en) * | 2018-01-13 | 2021-02-24 | GD Midea Environment Appliances MFG Co., Ltd. | Air duct assembly for axial fan |
| US11286954B1 (en) | 2018-01-13 | 2022-03-29 | Gd Midea Environment Appliances Mfg Co., Ltd. | Air duct assembly for axial flow fan |
| CN111249670A (en) * | 2020-03-11 | 2020-06-09 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
| CN111249670B (en) * | 2020-03-11 | 2021-05-07 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
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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: 20090610 Termination date: 20110825 |