CN102022355B - Cooling fan - Google Patents
Cooling fan Download PDFInfo
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- CN102022355B CN102022355B CN 200910177591 CN200910177591A CN102022355B CN 102022355 B CN102022355 B CN 102022355B CN 200910177591 CN200910177591 CN 200910177591 CN 200910177591 A CN200910177591 A CN 200910177591A CN 102022355 B CN102022355 B CN 102022355B
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- fan frame
- fan
- centrifugal radiation
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Abstract
The invention provides a centrifugal cooling fan, which comprises a fan frame, a stator, a fan wheel and a control element, wherein the fan frame is provided with a dust-removing passage; the stator is combined in the fan frame; the fan wheel is rotatably combined with the stator; the control element comprises a driving circuit and a positive-rotation and reverse-rotation control circuit; the driving circuit is electrically connected with the stator; and the positive-rotation and reverse-rotation control circuit is electrically connected with the driving circuit. Therefore, the positive-rotation and reverse-rotation control circuit of the control element can control the reverse rotation of the fan wheel through the driving circuit so as to provide a cooling function, and also can control the positive rotation of the fan wheel to match the structural design of the dust-removing passage so as to realize the function of automatically removing the dust.
Description
Technical field
The present invention is about a kind of centrifugal radiation fan, especially a kind of centrifugal radiation fan with automatic dedusting function.
Background technique
Existing centrifugal radiation fan roughly comprises fan frame, a driver element and an impeller.This fan frame is provided with a wind inlet and an exhaust outlet; This driver element is arranged at this fan frame inside; This impeller is rotatably in conjunction with this driver element; Whereby, this driver element can drive this impeller rotation, make this impeller can introduce the air-flow in extraneous space from this wind inlet, and this air-flow can be concentrated the heat source position that produces when being disposed to electronic product work by this exhaust outlet, the temperature when reducing this electronic product work.
Yet, should existing centrifugal radiation fan constantly introduce air-flow and be disposed to by this exhaust outlet in the process of this heat source position from this wind inlet long-time, the dust that the air-flow in extraneous space is carried secretly also constantly is piled up in this fan frame inside easily, for example: the positions such as several blades of wind inlet, exhaust outlet, this impeller; Therefore, after existing centrifugal radiation fan used between for a long time, the dust that is piled up in this fan frame inside influenced whole air output or air output easily, caused the radiating effect of existing centrifugal radiation fan to reduce.
Another kind of existing centrifugal radiation fan is as No. 229254 " fan module " patent of invention of TaiWan, China I.Should comprise a shell block 91, a fan 92 and several fins 93 by existing centrifugal radiation fan 9.This shell block 91 has a wind inlet 911 and an exhaust outlet 912; This fan 92 is equipped on this shell block 91 inside; Respectively this fin 93 is equipped within this exhaust outlet 912; Whereby, this fan 92 can be introduced air-flow from this wind inlet 911 equally, and air-guiding is by respectively between this fin 93, so that this exhaust outlet 912 is disposed to air-flow the heat source position that produces when one electronic product is worked certainly.
The existing centrifugal radiation fan 9 of this another kind is after long-time the use, and in these shell block 91 inner dusts of piling up, particularly because the exhaust outlet 912 of this centrifugal radiation fan 9 is equipped with several fins 93, respectively the distance between this fin 93 is quite limited equally easily; Therefore, easier being piled up in respectively between this fin 93 of dust that the air-flow in extraneous space is carried secretly, the whole air output of this centrifugal radiation fan 9 will be had a strong impact on, so must regularly clear up the dust that these centrifugal radiation fan 9 inside are piled up with manual mode, but, cause the inconvenience in the use also.
Summary of the invention
The present invention seeks to improve at the shortcoming of above-mentioned various existing centrifugal radiation fans, so that a kind of centrifugal radiation fan that can clear up dust automatically to be provided.
The present invention's time purpose provides a kind of centrifugal radiation fan, and it is by the function of automatic cleaning dust, with air output and the air output of effectively keeping this centrifugal radiation fan.
The centrifugal radiation fan according to the present invention, comprise: a fan frame, comprise a base and a side wall portion, this side wall portion is in conjunction with this base, and in the inboard containing space that forms of this side wall portion, this side wall portion is provided with a wind inlet, an exhaust outlet and a dust discharge passage that is communicated with this containing space; One stator is incorporated into the base of this fan frame; One impeller is rotatably in conjunction with this stator; And a control unit, comprising one drive circuit and a positive and reverse rotation control circuit, this drive circuit is electrically connected this stator, and this positive and reverse rotation control circuit is electrically connected this drive circuit.
The centrifugal radiation fan according to the present invention, comprise: one the fan frame, comprise a base and a ringwall, this ringwall in conjunction with this base to form a containing space, and this ringwall forms a wind inlet and an exhaust outlet that is communicated with this containing space, and this wind inlet is in addition as a dust discharge passage; One stator is incorporated into the base of this fan frame; One impeller is rotatably in conjunction with this stator; And a control unit, comprising one drive circuit and a positive and reverse rotation control circuit, this drive circuit is electrically connected this stator, and this positive and reverse rotation control circuit is electrically connected this drive circuit.
Useful technique effect of the present invention is: the centrifugal radiation fan of the present invention can utilize the positive and reverse rotation control circuit of this control unit to control this impeller by this drive circuit and be rotated in the forward, and cooperate the design of this dust discharge passage or wind inlet, to reach the function of carrying out dedusting automatically, whereby, can effectively remove the dust that is piled up in this fan frame inside, so have the effect that promotes the dedusting convenience, in addition, the centrifugal radiation fan of the present invention can reach function as aforementioned automatic cleaning dust by the arrange in pairs or groups design of this dust discharge passage or wind inlet of this control unit, be unlikely to the overheap dust so can guarantee this fan frame inside, with air output and the air output of effectively keeping this centrifugal radiation fan, and then reach the effect that promotes radiating effect.
Description of drawings
Fig. 1: the stereo appearance figure of existing centrifugal radiation fan.
Fig. 2: the three-dimensional exploded view of the centrifugal radiation fan of first embodiment of the invention.
Fig. 3: the combination plan view of the centrifugal radiation fan of first embodiment of the invention.
Fig. 4: the schematic representation when the centrifugal radiation fan of first embodiment of the invention is used for carrying out automatic dedusting.
Fig. 5: the plan view of the external dust guiding tube of the centrifugal radiation fan of first embodiment of the invention.
Fig. 6: the three-dimensional exploded view of the centrifugal radiation fan of second embodiment of the invention.
Fig. 7: the combination plan view of the centrifugal radiation fan of second embodiment of the invention.
Fig. 8: the schematic representation when the centrifugal radiation fan of second embodiment of the invention is used for carrying out automatic dedusting.
The primary component symbol description
1 fan frame, 11 bases, 111 auxiliary wind inlet 12 side wall portions
121 containing space 121a wind outlet areas, 1 21b pressure accumulation district, 122 wind inlets
123 exhaust outlet 123a, the first turning edge 123b, second turning edge, 124 dust discharge passages
13 cover plates, 131 perforation, 14 fins, 15 dust guiding tubes
2 stators, 21 coil groups, 22 axle beds, 3 impellers
31 wheel hubs, 32 blades, 4 control units, 41 drive circuits
42 positive and reverse rotation control circuits, 5 fan frames, 51 bases, 52 ringwalls, 521 containing spaces
522 wind inlets, 523 exhaust outlets, 6 stators, 61 coil groups
62 axle beds, 7 impellers, 71 wheel hubs, 72 blades
8 control units, 81 drive circuits, 82 positive and reverse rotation control circuit P1, first reference level
P2 second reference level 9 centrifugal radiation fan 91 shell blocks 911
Wind inlet
912 exhaust outlets, 92 fans, 93 fins
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and cooperate appended graphicly, be described in detail below:
Please refer to shown in Fig. 2 and 3, the centrifugal radiation fan of first embodiment of the invention comprises a fan frame 1, a stator 2, an impeller 3 and a control unit 4.This fan frame 1 can be for the precalculated position (as the host board surface of computer inside) that is combined in an electronic product; This stator 2 is incorporated into this fan frame 1 inside; This impeller 3 is rotatably in conjunction with this stator 2; This control unit 4 dispels the heat to produce enough air quantity in order to control these impeller 3 counterrotatings, or also can control this impeller 3 and be rotated in the forward the structural design of this fan frame 1 of arranging in pairs or groups, and then reaches the function of automatic dedusting.
This fan frame 1 comprises a base 11 and a side wall portion 12.This side wall portion 12 is in conjunction with this base 11, and forms containing spaces 121 in this side wall portion 12 is inboard, and this side wall portion 12 is provided with a wind inlet 122 and an exhaust outlet 123 that is communicated with this containing space 121; Again, this side wall portion 12 can further form one or several above dust discharge passages 124 in addition, and the dust discharge passage 124 of present embodiment is one, these dust discharge passage 124 same these containing spaces 121 that are communicated with.
This stator 2 is incorporated into the base 11 of this fan frame 1, and this stator 2 can comprise as members such as coil groups 21 and axle beds 22.Wherein this coil groups 21 can be incorporated into the outer circumferential face of this axle bed 22; This axle bed 22 can be selected one in conjunction with this base 11 or be assembled on this base 11.
This impeller 3 comprises a wheel hub 31 and several blades 32.This wheel hub 31 is rotatably in conjunction with the axle bed 22 of this stator 2; 32 outer circumferential faces that are incorporated into this wheel hub 31 of this blade respectively.
This control unit 4 comprises one drive circuit 41 and a positive and reverse rotation control circuit 42.This drive circuit 41 is electrically connected the coil groups 21 of this stator 2, and this positive and reverse rotation control circuit 42 then is electrically connected this drive circuit 41.In addition, this drive circuit 41 and positive and reverse rotation control circuit 42 can be encapsulated as an intergrated circuit (IC) jointly.Moreover this control unit 4 can be integrated in this fan frame 1 inside, perhaps, also can external mode be arranged at the outside of this fan frame 1, and it can reach the purpose of these impeller 3 working methods of control equally.
The centrifugal radiation fan of first embodiment of the invention can be incorporated into an electronic product when reality is used, and the exhaust outlet 123 that will fan frame 1 is easy to generate the position of thermal source in working procedure towards this electronic product; When this electronic product produces thermal source in working procedure, shown in Fig. 2 and 3, this positive and reverse rotation control circuit 42 can send a reverse control signal to this drive circuit 41, the coil groups 21 that drives this stator 2 for this drive circuit 41 produces a magnetic field, get final product these impeller 3 counterrotatings of further repulsion by this magnetic field, in order to introduce air-flow by this wind inlet 122 from extraneous space, further utilize this impeller 3 that this air-flow is concentrated again and be disposed to the thermal source that this electronic product produces by this exhaust outlet 123, to reach predetermined radiating effect.
Please refer to shown in Fig. 2 and 4, because the centrifugal radiation fan of the present invention is after long-time use, the dust that the air-flow in its extraneous space is carried secretly also is piled up in this fan frame 1 inside easily, for example: the positions such as several blades 32 of wind inlet 122, exhaust outlet 123, this impeller 3; At this moment, this positive and reverse rotation control circuit 42 can send one just to be changeed and is controlling signal to this drive circuit 41, the coil groups 21 that drives this stator 2 for this drive circuit 41 produces a magnetic field, change by this control signal, this magnetic field also further this impeller 3 of repulsion be rotated in the forward, the air-flow that makes this fan frame 1 inside is opposite with the sense of rotation of the air-flow that original these impeller 3 counterrotatings produce, so that the air-flow reverse pilot that will introduce by this wind inlet 122 is to this dust discharge passage 124, and then make the dust that is deposited in this fan frame 1 inside be disposed to extraneous space along with this air-flow, guarantee that this fan frame 1 inside is unlikely to because of the overheap dust, and influence whole air output or air output, so can effectively promote the integral heat sink effect.
In more detail, this positive and reverse rotation control circuit 42 can be by the opportunity of rotation forward or backwards of these drive circuit 41 these impellers 3 of control, for example: the centrifugal radiation fan of the present invention is when starting, can set when this impeller after one scheduled time of 3 counterrotatings (as 1 hour to 2 hours), namely control this impeller 3 and be rotated in the forward a scheduled time (as 10 minutes to 20 minutes), to reach the function of automatic dedusting, finish automatic dedusting operation by the time after, control this impeller 3 counterrotatings again, with the operation of dispelling the heat; Perhaps also can when the centrifugal radiation fan of the present invention start, directly set this impeller 3 and be rotated in the forward in advance, after finishing automatic dedusting operation in advance, control this impeller 3 counterrotatings again, with the operation of dispelling the heat.
By the structure characteristic of preceding taking off, the main feature of the centrifugal radiation fan of first embodiment of the invention includes at least: the centrifugal radiation fan of the present invention can be controlled these impeller 3 counterrotatings by this drive circuit 41 by the positive and reverse rotation control circuit 42 of this control unit 4, except can keeping the original heat sinking function of this centrifugal radiation fan; Can be rotated in the forward by this impeller 3 of control in addition, with the function that can carry out dedusting automatically, influence the integral heat sink effect so can effectively avoid this fan frame 1 inner overheap dust.Therefore, the centrifugal radiation fan of the present invention really can utilize the structural design of this positive and reverse rotation control circuit 42 and this dust discharge passage 124 of arranging in pairs or groups, and reaching the function of carrying out dedusting automatically, and then can promote radiating effect, effectively prolongs the working life of this electronic product.
Structural design concept by the centrifugal radiation fan of the invention described above, the centrifugal radiation fan of the present invention also can further comprise at least one accessory structure feature or its combination as described below, it is perfect that the function of the centrifugal radiation fan of the present invention is more leveled off to, wherein:
Please refer to shown in Fig. 2 and 3, the exhaust outlet 123 of described fan frame 1 has one first relative turning edge 123a and one second turning edge 123b, this fan frame 1 definition one first reference level (P1), this first reference level (P1) is by this first turning edge 123a and this second turning edge 123b; In addition, this impeller 3 definition one second reference level (P2), this second reference level (P2) is by the central point of this wheel hub 31, and this second reference level (P2) is parallel to this first reference level (P1); In more detail, by this second reference level of definition (P 2) and this first reference level (P1), the containing space 121 of this fan frame 1 can be divided into a wind outlet area 121a and a pressure accumulation district 121b, this wind outlet area 121a is positioned between this second reference level (P2) and this first reference level (P1), this pressure accumulation district 121b is positioned at this second reference level (P 2) with respect to the opposite side of this wind outlet area 121a, this exhaust outlet 123 is positioned at this wind outlet area 121a, and this dust discharge passage 124 is positioned at this pressure accumulation district 121b; Whereby, this dust discharge passage 124 can be relatively away from this exhaust outlet 123, when these control unit 4 these impellers 3 of control are rotated in the forward, this impeller 3 can be pushed air-flow to this pressure accumulation district 121b by this wind outlet area 121a comparatively all sidedly in regular turn, make the dust that is piled up in this fan frame 1 inside be disposed to extraneous space along with air-flow more waltzs through this dust discharge passage 124, so can promote whole dust removing effects.
Please refer to shown in Figure 4, the bearing of trend of described dust discharge passage 124 can be inclination, perpendicular or parallel with this second reference level (P2), this impeller 3 of this bearing of trend better fit is rotated in the forward the direct of travel of the air-flow that promotes, for example, among the embodiment as shown in the figure, the bearing of trend of this dust discharge passage 124 is inclination; Whereby, air-flow that this impeller 3 promotes is entered in the process of this dust discharge passage 124 along the internal face of the side wall 12 of this fan frame 1, the resistance that this air-flow is subjected to can reduce relatively, guarantees that the dedusting operation can finish smoothly.
Please refer to shown in Fig. 2 and 3, the side wall portion 12 of described fan frame 1 in addition can be in conjunction with a cover plate 13, and this cover plate 13 has a perforation 131, this this wind inlet 122 of 131 contrapositions of boring a hole; Whereby, this cover plate 13 can be in order to the containing space 121 that seals this fan frame 1, guarantee air-flow that this impeller 3 produces can by this bore a hole 131 and wind inlet 122 enter to this fan frame 1 inside, so that a pressurization to be provided, this impeller 3 can more successfully be derived air-flow from this exhaust outlet 123.
Please refer to shown in Fig. 2 and 3, the base of described fan frame 1 11 can form several auxiliary wind inlets 111 in addition, and this several auxiliary wind inlet 111 can be relative with this wind inlet 122; Whereby, the air-flow that this impeller 3 produces the also air in the bootable external world enters to this fan frame 1 inside by these several auxiliary wind inlet 111, so that more air output to be provided.
Please refer to shown in Fig. 2 and 3, the exhaust outlet 123 of described fan frame 1 can arrange several fins 14, and wherein these several fins 14 are formed directly in this exhaust outlet 123, perhaps, these several fins 14 also can be integrated into a radiator, and this radiator is organized separately and is loaded on this exhaust outlet 123 positions; Whereby, when this fan frame 1 during in conjunction with this electronic product, respectively this fin 14 high heat that can produce in order to the thermal source that absorbs this electronic product makes this impeller 2 promote air-flows in the process that this exhaust outlet 123 is discharged, and has better radiating effect.
Please refer to shown in Figure 5ly, the dust discharge passage 124 of described fan frame 1 can an external dust guiding tube 15; Whereby, when carrying out automatic dedusting function, the dust that is deposited in this fan frame 1 inside can be disposed to position away from this fan frame 1 by this dust guiding tube 15 along with this air-flow, so that better dust removing effects to be provided.
Please refer to shown in Fig. 6 and 7, the centrifugal radiation fan of second embodiment of the invention comprises a fan frame 5, a stator 6, an impeller 7 and a control unit 8.This fan frame 5 can be blowing-type or axial flow fan frame, is preferably blowing-type fan frame; This stator 6 is incorporated into this fan frame 5 inside; This impeller 7 is rotatably in conjunction with this stator 6; This control unit 8 rotates forward or backwards in order to control this impeller 7.
This fan frame 5 comprises a base 51 and a ringwall 52.Forming a containing space 521, and this ringwall 52 can form a wind inlet 522 and an exhaust outlet 523 that is communicated with this containing space 521 to this ringwall 52 relatively in conjunction with this base 51, and wherein this wind inlet 522 can be used as a dust discharge passage in addition.
This stator 6 is incorporated into the base 51 of this fan frame 5, and this stator 6 can comprise as members such as coil groups 61 and axle beds 62.Wherein this coil groups 61 can be incorporated into the outer circumferential face of this axle bed 62; This axle bed 62 can be selected one in conjunction with this base 51 or be assembled on this base 51.
This impeller 7 is located at the containing space 521 of this fan frame 5, these impeller 7 preferable axial flow impellers of selecting for use, and this impeller 7 can comprise a wheel hub 71 and several blades 72.This wheel hub 71 is rotatably in conjunction with the axle bed 62 of this stator 6; 72 outer circumferential faces in conjunction with this wheel hub 71 of this blade respectively.
This control unit 8 comprises one drive circuit 81 and a positive and reverse rotation control circuit 82.This drive circuit 81 is electrically connected the coil groups 61 of this stator 6, and this positive and reverse rotation control circuit 82 then is electrically connected this drive circuit 81.In addition, this drive circuit 81 and positive and reverse rotation control circuit 82 can be encapsulated as an intergrated circuit (I C) jointly.
The centrifugal radiation fan of second embodiment of the invention is when reality is used, shown in Fig. 6 and 7, this positive and reverse rotation control circuit 82 can produce a reverse control signal to this drive circuit 81, to drive this impeller 7 counterrotatings, whereby, this impeller 7 can be introduced air-flow from extraneous space by this wind inlet 522, is disposed to the thermal source that this electronic product produces by this exhaust outlet 523 again.In addition, shown in Fig. 6 and 8, this positive and reverse rotation control circuit 82 more can produce one just to be changeed and is controlling signal to this drive circuit 81, be rotated in the forward to drive this impeller 7, at this moment, can be by each blade 72 design characteristics of axial flow impeller 7, the air-flow that makes these fan frame 5 inside is opposite with the sense of rotation of the air-flow that original these impeller 7 counterrotatings produce, make dust can more be difficult for being built-up in this fan frame 5 inside, and (this moment, this wind inlet 522 was as the dust discharge passage by this wind inlet 522 simultaneously, and with the original inlet air function of dust discharge function replacement) be disposed to this fan frame 5 outsides, make the dust that is deposited in these fan frame 5 inside can be disposed to extraneous space.
By the structure characteristic of preceding taking off, the main feature of the centrifugal radiation fan of second embodiment of the invention includes at least: as first embodiment's centrifugal radiation fan, the centrifugal radiation fan of present embodiment can rotate forward or backwards by these control unit 8 these impellers 7 of control equally, to reach the function of carrying out dedusting automatically with heat sinking function simultaneously, and then avoid these fan frame 5 inner overheap dusts and influence the integral heat sink effect, can effectively prolong the working life of this electronic product.The more important thing is, the fan frame 5 of present embodiment can utilize this wind inlet 522 as this dust discharge passage, therefore, need not must form the structural design of this dust discharge passage 124 in this side wall portion 12 in addition as first embodiment's fan frame 1, so can reduce the complicated integral structure degree relatively.
Again, the accessory structure feature that the centrifugal radiation fan of second embodiment of the invention also can suitably select the centrifugal radiation fan as above-mentioned first embodiment to disclose according to actual demand, it is familiar with the person skilled in art and is appreciated that in present embodiment and repeats no more.
In sum, the centrifugal radiation fan of the present invention can reach many effects as described below at least:
The centrifugal radiation fan of the present invention can utilize this control unit 4,8 positive and reverse rotation control circuit 42,82 to be rotated in the forward by this drive circuit 41,81 these impellers 3,7 of control, and cooperate the design of this dust discharge passage 124 (or wind inlet 522 of second embodiment), to reach the function of carrying out dedusting automatically, whereby, can effectively remove the dust that is piled up in this fan frame 1,5 inside, so have the effect that promotes the dedusting convenience.
The centrifugal radiation fan of the present invention can reach the function as aforementioned automatic cleaning dust by the design of this control unit 4,8 these dust discharge passages 124 of collocation (or wind inlet 522 of second embodiment), be unlikely to the overheap dust so can guarantee this fan frame 1,5 inside, with air output and the air output of effectively keeping this centrifugal radiation fan, and then reach the effect that promotes radiating effect.
Claims (9)
1. centrifugal radiation fan is characterized in that comprising:
A fan frame comprises a base and a side wall portion, and this side wall portion is in conjunction with this base, and in the inboard containing space that forms of this side wall portion, this fan frame is provided with a wind inlet, an exhaust outlet and dust discharge passage that is communicated with this containing space in addition;
A stator is incorporated into the base of this fan frame;
An impeller is in conjunction with this stator; And
A control unit comprises a drive circuit and a positive and reverse rotation control circuit, and this drive circuit is electrically connected this stator, and this positive and reverse rotation control circuit is electrically connected this drive circuit;
Wherein the bearing of trend of this dust discharge passage is the air-flow direct of travel that this impeller rotation of cooperation promotes, and this impeller comprises a wheel hub and several blades, this wheel hub is in conjunction with this stator, respectively this blade is incorporated into side face outside this wheel hub, the exhaust outlet of this fan frame has relative first turning edge and second turning edge, this fan is confined first reference level of justice, this first reference level is by this first turning edge and this second turning edge, second reference level of this impeller definition, this second reference level by this wheel hub central point and be parallel to this first reference level, the containing space of this fan frame is divided into a wind outlet area and a pressure accumulation district, be this wind outlet area between this second reference level and this first reference level, this second reference level opposite side of this wind outlet area relatively is this pressure accumulation district, this dust discharge passage is positioned at this pressure accumulation district, and this exhaust outlet is positioned at this wind outlet area.
2. according to the described centrifugal radiation fan of claim 1, it is characterized in that the bearing of trend of the dust discharge passage of described this fan frame and this second reference level are inclination, perpendicular or parallel.
3. according to claim 1 or 2 described centrifugal radiation fans, it is characterized in that the external dust guiding tube of dust discharge passage of this fan frame.
4. according to claim 1 or 2 described centrifugal radiation fans, it is characterized in that the exhaust outlet of this fan frame arranges several fins.
5. according to the described centrifugal radiation fan of claim 3, it is characterized in that the exhaust outlet of this fan frame forms several fins.
6. according to claim 1 or 2 described centrifugal radiation fans, it is characterized in that the side wall portion of this fan frame is in addition in conjunction with a cover plate, this cover plate has a perforation, this this wind inlet of perforation contraposition.
7. according to the described centrifugal radiation fan of claim 3, it is characterized in that the side wall portion of this fan frame is in addition in conjunction with a cover plate, this cover plate has a perforation, this this wind inlet of perforation contraposition.
8. according to the described centrifugal radiation fan of claim 4, it is characterized in that the side wall portion of this fan frame is in conjunction with a cover plate, this cover plate has a perforation, this this wind inlet of perforation contraposition.
9. according to claim 1 or 2 described centrifugal radiation fans, it is characterized in that the base of this fan frame forms several auxiliary wind inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910177591 CN102022355B (en) | 2009-09-16 | 2009-09-16 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910177591 CN102022355B (en) | 2009-09-16 | 2009-09-16 | Cooling fan |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310050743 Division CN103148000A (en) | 2009-09-16 | 2009-09-16 | Centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102022355A CN102022355A (en) | 2011-04-20 |
| CN102022355B true CN102022355B (en) | 2013-09-04 |
Family
ID=43864023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910177591 Ceased CN102022355B (en) | 2009-09-16 | 2009-09-16 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022355B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835965B (en) * | 2012-11-27 | 2016-08-24 | 建准电机工业股份有限公司 | Centrifugal heat radiation fan |
| CN105673577B (en) * | 2014-12-24 | 2018-11-16 | 大连尚能科技发展有限公司 | A kind of cooler fan automatic dedusting method |
| CN104564765B (en) * | 2014-12-24 | 2016-07-06 | 大连尚能科技发展有限公司 | A kind of cooler fan automatic dust removing method |
| CN107013501B (en) * | 2017-02-28 | 2019-08-23 | 西门子公司 | Fan component and driver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313088Y (en) * | 1997-06-18 | 1999-04-07 | 新典自动化股份有限公司 | Automatic reverse-rotating cleaning device for electric fan |
| CN1967442A (en) * | 2005-11-18 | 2007-05-23 | 纬创资通股份有限公司 | Method for dedusting by radiator fan and dust cleaning apparatus for computer device |
| CN201071832Y (en) * | 2007-07-30 | 2008-06-11 | 元山科技工业股份有限公司 | Vane device of exterior pole type radiating fan |
| CN201513370U (en) * | 2009-09-16 | 2010-06-23 | 建准电机工业股份有限公司 | Heat radiation fan |
-
2009
- 2009-09-16 CN CN 200910177591 patent/CN102022355B/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313088Y (en) * | 1997-06-18 | 1999-04-07 | 新典自动化股份有限公司 | Automatic reverse-rotating cleaning device for electric fan |
| CN1967442A (en) * | 2005-11-18 | 2007-05-23 | 纬创资通股份有限公司 | Method for dedusting by radiator fan and dust cleaning apparatus for computer device |
| CN201071832Y (en) * | 2007-07-30 | 2008-06-11 | 元山科技工业股份有限公司 | Vane device of exterior pole type radiating fan |
| CN201513370U (en) * | 2009-09-16 | 2010-06-23 | 建准电机工业股份有限公司 | Heat radiation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102022355A (en) | 2011-04-20 |
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