CN100371606C - Blast and heat radiation fan wheel with sparse blades arrangement at air inlet side - Google Patents
Blast and heat radiation fan wheel with sparse blades arrangement at air inlet side Download PDFInfo
- Publication number
- CN100371606C CN100371606C CNB2004100583459A CN200410058345A CN100371606C CN 100371606 C CN100371606 C CN 100371606C CN B2004100583459 A CNB2004100583459 A CN B2004100583459A CN 200410058345 A CN200410058345 A CN 200410058345A CN 100371606 C CN100371606 C CN 100371606C
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- flabellum
- inlet air
- wheel hub
- air
- sparse
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a blast and heat radiation fan blade wheel with sparse fan blades arrangement at the air inlet side. The present invention provides a component of a heat radiation fan, which has the advantages that the air inlet range is amplified, the air pressure of outlet air is increased, the hindrance for inlet air is avoided, and the noise is reduced. The present invention is provided with an air inlet side and a bottom side which is opposite to the air inlet side. The present invention comprises a wheel hub provided with a peripheral surface, at least one supporting member connected with the peripheral surface of the wheel hub, and a plurality of fan blades which support the wheel hub and are connected with the wheel hub by the supporting member, wherein the fan blade is provided with an air inlet side edge which is corresponding to the air inlet side and a bottom edge which is corresponding to the bottom side. The arrangement of the sparse fan blades is formed at the air inlet side. The arrangement of the dense fan blades is formed at the bottom side.
Description
Technical field
The invention belongs to the radiation fan parts, particularly a kind of inlet air side forms the air blast impeller of heat radiating fan that sparse flabellum is arranged.
Background technique
As shown in Figure 1 and Figure 2, existing air blast heat-dissipating fan comprises shell block 1, is incorporated into cover plate 2 and impeller 3 on the shell block 1.
In the running, the air blast flabellum 33 of impeller 3 rotates, and then sucks axial flow by the wind inlet 21 of cover plate 2; Then, 33 driving axial air-flows of air blast flabellum are radially exported via the side air-out mouth 12 of shell block 1, and so, the air blast heat-dissipating fan gets final product the desires heat radiation object outside the offside exhaust outlet 12, dispels the heat as radiating fin.
Though existing air blast heat-dissipating fan is widely used in the computer system, yet still there is following point in existing air blast heat-dissipating fan on reality is used:
1, inlet air lateral margin 331 end faces common and wheel hub 31 of air blast flabellum 33 roughly have same axial level, and when finishing assembling, the end face of wheel hub 31 roughly is close to wind inlet 21 places of cover plate 2.Therefore, in fact, wind inlet 21 only can be formed the air inlet scope by the gap between the air blast flabellum 33, thereby the air inflow of limitation axial flow.At this moment, if the inlet air lateral margin of air blast flabellum 33 331 forms big radial length, then will cause inlet air lateral margin 331 to disturb, hinder the axial flow air inlet action of wind inlet 21, thereby be unfavorable for improving air inflow, and then influence air output and blast thereof.
2, if air blast flabellum 33 forms big radial length at inlet air lateral margin 331, then the axial flow that sucks via wind inlet 21 will be subjected to the rotation guiding of inlet air lateral margin 331 at once and change into radially centrifugal flow immediately after entering shell block 1.The phenomenon that this kind air-flow turns to immediately may cause producing the air blast noise, and influences the rotating speed efficient of air blast heat-dissipating fan.
Based on above-mentioned factor, still be necessary further to improve the blade wheel structure of air blast heat-dissipating fan really.
Summary of the invention
The inlet air side of the purpose of this invention is to provide a kind of air inlet scope that increases, improve the air-out blast, avoiding hindering air inlet, reducing noise forms the air blast impeller of heat radiating fan that sparse flabellum is arranged.
The present invention has the inlet air side and with respect to the bottom side of inlet air side; It comprises wheel hub with outer circumferential face, at least one supporting element that is connected in the wheel hub outer circumferential face and by supports support and be connected in several pieces flabellums of wheel hub; Flabellum has corresponding to the inlet air lateral margin of inlet air side and corresponding to the root edge of bottom side; And described several pieces flabellums are made up of flabellum on several pieces and several pieces following flabellums, the quantity of last flabellum is less than the quantity of flabellum down, be provided with between last flabellum and the following flabellum use separate flabellum on several pieces and down the connecting ring inlet air side of flabellum form sparse flabellum and arrange, the bottom side forms intensive flabellum and arranges.
Wherein:
Several pieces flabellum inlet air lateral margins have different axial heights, so as to making the inlet air side form that sparse flabellum is arranged and the bottom side forms intensive flabellum and arranges.
The whole axial height of flabellum is higher than the end face of wheel hub, but so as to one common peripheral between flabellum and wheel hub end face around the air inlet scope that forms the amplification axial flow and be beneficial to the buffer space that the air-flow smoothness turns to.
Supporting element is for being extended to form and connected several wavy ribs of supporting part flabellum by wheel hub outer circumferential face outward radial; Several several pieces flabellum outer rims connect the connecting ring of establishing.
Connecting ring is connected in the inlet air lateral margin of several pieces flabellums.
Connecting ring is connected in the root edge of several pieces flabellums.
Supporting element is a ring flat-plate.
Because the present invention has the inlet air side and with respect to the bottom side of inlet air side; It comprises wheel hub with outer circumferential face, at least one supporting element that is connected in the wheel hub outer circumferential face and by supports support and be connected in several pieces flabellums of wheel hub; Flabellum has corresponding to the inlet air lateral margin of inlet air side and corresponding to the root edge of bottom side; The inlet air side forms sparse flabellum and arranges, and the bottom side forms intensive flabellum and arranges.The present invention can form complete air blast heat-dissipating fan in conjunction with motor and with shell block with room and cover plate with wind inlet.When the air blast heat-dissipating fan turns round, flabellum will rotate and drive outside axial flow and entered by the wind inlet of cover plate, sparse flabellum is arranged and form intensive flabellum in the bottom side arranges because inlet air side of the present invention forms, therefore can effectively avoid arranging the air inlet action of disturbing the cover plate wind inlet because of overstocked flabellum, and help the air inlet area is expanded to maximum, and make the flabellum of nearly bottom side Lower Half have big wind dispelling ability relatively; Be can the increase air inlet scope of axial flow of the present invention, and guide shaft turns to glibly to air-flow, and make axial flow turn to the back glibly with of the side air-out mouth supercharging output of radial air flow mode by shell block; And can avoid the first half of the go to action concentrations of axial flow, and then effectively reduce the air blast noise that is produced when flabellum rotates in nearly inlet air side.Not only increase the air inlet scope, improve the air-out blast, and avoid hindering air inlet, reduce noise, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, be existing air blast heat-dissipating fan decomposition texture schematic isometric.
Fig. 2, for existing air blast heat-dissipating fan decomposition texture schematic isometric (being provided with connecting ring).
Fig. 3, be the embodiment of the invention one broken section structural representation stereogram.
Fig. 4, for the assembling embodiment of the invention one air blast heat-dissipating fan structural representation sectional view.
Fig. 5, for the assembling embodiment of the invention one air blast heat-dissipating fan user mode schematic representation.
Fig. 6, be the embodiment of the invention one broken section structural representation stereogram (part flabellum inlet air lateral margin periphery and connecting ring form interconnected relationship).
Fig. 7, be the embodiment of the invention two broken section structural representation stereograms.
Fig. 8, be the embodiment of the invention three broken section structural representation stereograms.
Fig. 9, be the embodiment of the invention four broken section structural representation stereograms.
Figure 10, be the embodiment of the invention five broken section structural representation stereograms.
Figure 11, be the embodiment of the invention five structural representation sectional views.
Embodiment
Embodiment one
As shown in Figure 3, Figure 4, inlet air side of the present invention forms several pieces flabellums 43,43 ' and at least one connecting ring 44 that air blast impeller of heat radiating fan 4 that sparse flabellum arranges comprises the wheel hub 41 with outer circumferential face, at least one supporting element 42 that is connected in wheel hub 41 outer circumferential faces, supports and be connected in wheel hub 41 by supporting element 42.
The present invention can be in conjunction with motor (figure do not show), and forms complete air blast heat-dissipating fan with shell block 1 with room 11 and cover plate 2 with wind inlet 21.
The air blast impeller of heat radiating fan 4 that inlet air side of the present invention forms sparse flabellum arrangement has corresponding to the inlet air side 401 of cover plate 2 wind inlets 21 and with respect to inlet air side 401 opposite sides, for example the bottom side 402 of contiguous shell block 1 room 11 inner bottom surfaces.
Supporting element 42 several wavy ribs for extending to form by wheel hub 41 outer circumferential face outward radials.
As shown in Figure 3, Figure 4, each flabellum 43,43 ' comprises several lateral margins, and as inlet air lateral margin 431,431 ' and root edge 432, inlet air lateral margin 431 is positioned at inlet air side 401 of the present invention, root edge 432 is positioned at bottom side 402 of the present invention, and utilizes connecting ring 44 to form interconnected relationship in outer periphery.
Wherein, the axial height of the inlet air lateral margin 431 of at least a portion flabellum 43 is greater than the axial height of the inlet air lateral margin 431 ' of another part flabellum 43 '.Whereby, form sparse flabellum 43 in inlet air side 401 of the present invention and arrange, and form intensive flabellum 43,43 ' arrangement in bottom side 402 of the present invention.Moreover, the preferable end face that is higher than wheel hub 41 of the whole axial height of flabellum 43, so, but between flabellum 43 and wheel hub 41 end faces one common peripheral around formation buffer space 400.Also can be as shown in Figure 7, inlet air lateral margin 431 peripheries of the part flabellum 43 that the axial height of inlet air lateral margin 431 is higher utilize connecting ring 44 to form interconnected relationship.
As shown in Figure 5, when the present invention is turned round, flabellum 43 will rotate and drive outside axial flow and enter buffer space 400 by the wind inlet 21 of cover plate 2.At this moment, since the axial height of the inlet air lateral margin 431 of part flabellum 43 greater than another part flabellum 43 ' inlet air lateral margin 431 ' axial height, sparse flabellum 43 is arranged and intensive flabellum 43, the 43 ' arrangement of 402 formation in the bottom side so that the present invention forms in inlet air side 401, therefore can reduce flabellum 43 and form 43 arrangements of excessively intensive flabellum in inlet air side 401 of the present invention, thereby the air inlet that can effectively avoid interference cover plate 2 wind inlets 21 is moved, and enlarge the buffer space 400 of inlet air side 401 of the present invention relatively, and then help the air inlet area is expanded to maximum.Then, after axial flow enters buffer space 400, because buffer space 400 has enough spaces, therefore, the air inlet scope of the axial flow that can increase, and guide shaft turns to glibly to air-flow.After turning to glibly, axial flow is exported by side air-out mouth 12 superchargings of shell block 1 in the radial air flow mode via the driving of flabellum 43 again.At this moment,, the present invention arranges because having sparse flabellum 43 at inlet air side 401 first halves, thereby, cause the flabellum 43,43 ' relatively of the nearly bottom side of the present invention 402 Lower Halves to have big wind dispelling ability.Whereby, the axial flow tendency flows toward flabellum 43,43 ' Lower Half, thus also can avoid the first half of the go to action concentrations of axial flow in the nearly inlet air side 401 of the present invention, and then effectively reduce the air blast noise that is produced when flabellum 43 rotates.
Embodiment two
As shown in Figure 6, inlet air side of the present invention form air blast impeller of heat radiating fan 4a that sparse flabellum arranges comprise the wheel hub 41 with outer circumferential face, at least one supporting element 42 that is connected in wheel hub 41 outer circumferential faces, by supporting element 42 support and be connected in several pieces flabellums 43,43 of wheel hub 41 ', 43 ", 43 " and at least one connecting ring 44.
The present invention can be in conjunction with motor (figure do not show), and forms complete air blast heat-dissipating fan with shell block with room and cover plate with wind inlet.
The present invention has corresponding to the inlet air side 401 of cover plate wind inlet and with respect to inlet air side 401 opposite sides, for example the bottom side of contiguous shell block room inner bottom surface.
Supporting element 42 several wavy ribs for extending to form by wheel hub 41 outer circumferential face outward radials.
Wherein, several pieces flabellums 43,43 ', 43 ", 43 " ' form the inlet air lateral margin 431,431 ', 431 of two or more different axial heights ", 431 " ', and the flabellum 43,43 ', 43 of various different axial heights ", 43 " ' the equal angles symmetrical ring is located at around the wheel hub 41, can form sparse flabellum 43 in inlet air side 401 of the present invention so equally arranges, can effectively avoid interference the air inlet action of cover plate wind inlet, with relative amplification air inlet scope; The preferable end face that is higher than wheel hub 41 of the whole axial height of flabellum 43, so, but one common peripheral with relative increase air inlet area, lifting air flow divert fluency, and reduces the air blast noise around forming buffer space 400 between flabellum 43 and wheel hub 41 end faces.
Embodiment three
As shown in Figure 8, inlet air side of the present invention forms several pieces flabellums 43b, 43b ' and at least one connecting ring 44 that air blast impeller of heat radiating fan 4b that sparse flabellum arranges comprises the wheel hub 41 with outer circumferential face, at least one supporting element 42 that is connected in wheel hub 41 outer circumferential faces, supports and be connected in wheel hub 41 by supporting element 42.
The present invention can be in conjunction with motor (figure do not show), and forms complete air blast heat-dissipating fan with shell block with room and cover plate with wind inlet.
The present invention has corresponding to the inlet air side 401 of cover plate wind inlet and with respect to inlet air side 401 opposite sides, for example the bottom side 402 of contiguous shell block room inner bottom surface.
Supporting element 42 several wavy ribs for extending to form by wheel hub 41 outer circumferential face outward radials.
Each flabellum 43b, 43b ' comprise several lateral margins, and as inlet air lateral margin 431,431 ' and root edge 432, inlet air lateral margin 431 is positioned at inlet air side 401 of the present invention, and root edge 432 is positioned at bottom side 402 of the present invention, and utilizes connecting ring 44 to form interconnected relationships in outer periphery.
Wherein, the axial height of the inlet air lateral margin 431 of at least a portion flabellum 43b greater than the inlet air lateral margin 431 of another part flabellum 43b ' ' axial height.The Lower Half of the flabellum 43b that the axial height of inlet air lateral margin 431 is higher and inlet air lateral margin 431 ' the big radial length of the lower flabellum 43b ' formation of axial height.Whereby, form sparse flabellum 43b in inlet air side 401 of the present invention and arrange, with relative amplification air inlet scope, and in intensive flabellum 43b, the 43b ' arrangement of bottom side 402 formation of the present invention, to have bigger wind dispelling ability.Moreover, the preferable end face that is higher than wheel hub 41 of the whole axial height of flabellum 43b, so, but between flabellum 43b and wheel hub 41 end faces one common peripheral around the formation buffer space.
Embodiment four
As shown in Figure 9, inlet air side of the present invention form air blast impeller of heat radiating fan 5 that sparse flabellum arranges comprise the wheel hub 51 with outer circumferential face, at least one supporting element 52 that is connected in wheel hub 51 outer circumferential faces, support and be connected in wheel hub 51 by supporting element 52 several pieces go up flabellum 53, several several connecting rings 54,55,56 of flabellums 53 ' reach down.
The present invention can be in conjunction with motor (figure do not show), and forms complete air blast heat-dissipating fan with shell block with room and cover plate with wind inlet.
The present invention has corresponding to the inlet air side 501 of cover plate wind inlet and with respect to inlet air side 501 opposite sides, for example the bottom side 502 of contiguous shell block room inner bottom surface.
Supporting element 52 several wavy ribs for extending to form by wheel hub 51 outer circumferential face outward radials.
Flabellum 53 and several pieces following flabellums 53 on several pieces ' utilize connecting ring 54,55,56 formation to support and separate, be connected on the wheel hub 51 via supporting element 52 simultaneously.The quantity of last flabellum 53 be less than following flabellum 53 ' quantity.Moreover the preferable selection of radial length of going up flabellum 53 less than flabellum 53 down ' radial length.Whereby, utilize the mode of flabellum 53 quantity in the minimizing to form sparse flabellum 53 in inlet air side 501 of the present invention and arrange, with relative amplification air inlet scope.Simultaneously, utilize in bottom side 502 of the present invention a fairly large number of flabellum 53 down ', form intensive flabellum 53,53 ' arrangement, to have bigger wind dispelling ability.Moreover, the preferable end face that is higher than wheel hub 51 of the whole axial height of last flabellum 53, so, but between flabellum 53 and wheel hub 51 end faces one common peripheral around the formation buffer space.
Embodiment five
As Figure 10, shown in Figure 11, the air blast impeller of heat radiating fan 6 that inlet air side of the present invention forms sparse flabellum arrangement comprises wheel hub 61, supporting element 62 that is connected in wheel hub 61 outer circumferential faces with outer circumferential face and several pieces flabellums 63 that support and be connected in wheel hub 61 by supporting element 62.
The present invention can be in conjunction with motor (figure do not show), and forms complete air blast heat-dissipating fan with shell block with room and cover plate with wind inlet.
The present invention has corresponding to the inlet air side 601 of cover plate wind inlet and with respect to inlet air side 601 opposite sides, for example the bottom side 602 of contiguous shell block room inner bottom surface.
Wheel hub 61 is combined in the shell block room with rotary way, and its inside is installed with motor.
The ring flat-plate shape of supporting element 62 for extending to form by wheel hub 61 outer circumferential face outward radials.
All flabellums 63 are connected support and connection on wheel hub 61 with ring flat-plate shape supporting element 62 one.
Flabellum 63 comprises several lateral margins respectively, as inlet air lateral margin 631,631 ', 631 " and root edge 632; inlet air lateral margin 631,631 ', 631 " be positioned at inlet air side 601 of the present invention, root edge 632 is positioned at bottom side 602 of the present invention, and is connected with ring flat-plate shape supporting element 62 one.
Wherein, several pieces flabellums 63 form the inlet air lateral margin 631,631 of different axial heights ', 631 "; and the flabellum 63 equal angles symmetrical rings of various different axial heights are located at around the wheel hub 41; can form sparse flabellum 63 in inlet air side 601 of the present invention so equally and arrange; can effectively avoid interference the air inlet action of cover plate wind inlet, with relative amplification air inlet scope; The preferable end face that is higher than wheel hub 61 of the whole axial height of flabellum 63, so, but one common peripheral with relative increase air inlet area, lifting air flow divert fluency, and reduces the air blast noise around forming buffer space 600 between flabellum 63 and wheel hub 61 end faces.
As mentioned above, compare with existing impeller 3 as shown in Figure 1, the present invention is by form the buffer space that sparse relatively flabellum is arranged and formed in its inlet air side, the air inlet scope of its inlet air side that can increase relatively really, increase the air-out blast and reduce the air blast noise, effectively overcome and only have limit air inlet scope and turn to the shortcoming that produces noise because of air-flow immediately.
Claims (7)
1. an inlet air side forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it has the inlet air side and with respect to the bottom side of inlet air side; It comprises wheel hub with outer circumferential face, at least one supporting element that is connected in the wheel hub outer circumferential face and by supports support and be connected in several pieces flabellums of wheel hub; Flabellum has corresponding to the inlet air lateral margin of inlet air side and corresponding to the root edge of bottom side, and described several pieces flabellums are made up of flabellum on several pieces and several pieces following flabellums, the quantity of last flabellum is less than the down quantity of flabellum, is provided with between last flabellum and the following flabellum to use the connecting ring that separates flabellum on several pieces and descend flabellum; It is characterized in that described inlet air side forms sparse flabellum and arranges, the bottom side forms intensive flabellum and arranges.
2. inlet air side according to claim 1 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it is characterized in that described several pieces flabellum inlet air lateral margins have different axial heights.
3. inlet air side according to claim 1 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, it is characterized in that the whole axial height of described flabellum is higher than the end face of wheel hub, so as to one common peripheral between flabellum and wheel hub end face around the air inlet scope that forms the amplification axial flow and be beneficial to the buffer space that the air-flow smoothness turns to.
4. inlet air side according to claim 1 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it is characterized in that described supporting element is for being extended to form and connected several wavy ribs of supporting part flabellum by wheel hub outer circumferential face outward radial; Several several pieces flabellum outer rims connect the connecting ring of establishing.
5. inlet air side according to claim 4 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it is characterized in that described connecting ring is connected in the inlet air lateral margin of several pieces flabellums.
6. inlet air side according to claim 4 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it is characterized in that described connecting ring is connected in the root edge of several pieces flabellums.
7. inlet air side according to claim 1 forms the air blast impeller of heat radiating fan that sparse flabellum is arranged, and it is characterized in that described supporting element is a ring flat-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583459A CN100371606C (en) | 2004-08-10 | 2004-08-10 | Blast and heat radiation fan wheel with sparse blades arrangement at air inlet side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583459A CN100371606C (en) | 2004-08-10 | 2004-08-10 | Blast and heat radiation fan wheel with sparse blades arrangement at air inlet side |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734101A CN1734101A (en) | 2006-02-15 |
| CN100371606C true CN100371606C (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100583459A Active CN100371606C (en) | 2004-08-10 | 2004-08-10 | Blast and heat radiation fan wheel with sparse blades arrangement at air inlet side |
Country Status (1)
| Country | Link |
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| CN (1) | CN100371606C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081294A1 (en) * | 2009-01-14 | 2010-07-22 | Qin Biao | Axial-flow type electronic radiator fan |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358607A (en) * | 2007-08-03 | 2009-02-04 | 富准精密工业(深圳)有限公司 | Blade structure |
| CN101377207B (en) * | 2007-08-27 | 2012-09-05 | 建准电机工业股份有限公司 | Fan impeller |
| CN107288924A (en) | 2017-08-17 | 2017-10-24 | 联想(北京)有限公司 | A kind of electronic equipment and its radiator fan |
| KR102584453B1 (en) * | 2018-11-30 | 2023-10-05 | 삼성전자주식회사 | Double suction fan and air conditioner having the same |
| CN113915146B (en) * | 2020-07-07 | 2023-04-11 | 华为技术有限公司 | Centrifugal fan and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1243615A (en) * | 1913-08-07 | 1917-10-16 | Jeffrey Mfg Co | Fan. |
| US5360317A (en) * | 1992-07-30 | 1994-11-01 | Spin Corporation | Centrifugal blood pump |
| CN2560780Y (en) * | 2002-06-17 | 2003-07-16 | 陈至善 | Centrifugal fan structure improvement |
| US20030190230A1 (en) * | 2002-04-09 | 2003-10-09 | Koji Ito | Centrifugal blower unit |
-
2004
- 2004-08-10 CN CNB2004100583459A patent/CN100371606C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1243615A (en) * | 1913-08-07 | 1917-10-16 | Jeffrey Mfg Co | Fan. |
| US5360317A (en) * | 1992-07-30 | 1994-11-01 | Spin Corporation | Centrifugal blood pump |
| US20030190230A1 (en) * | 2002-04-09 | 2003-10-09 | Koji Ito | Centrifugal blower unit |
| CN2560780Y (en) * | 2002-06-17 | 2003-07-16 | 陈至善 | Centrifugal fan structure improvement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081294A1 (en) * | 2009-01-14 | 2010-07-22 | Qin Biao | Axial-flow type electronic radiator fan |
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| Publication number | Publication date |
|---|---|
| CN1734101A (en) | 2006-02-15 |
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