CN101713418A - Centrifugal type fan - Google Patents
Centrifugal type fan Download PDFInfo
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- CN101713418A CN101713418A CN200810166143A CN200810166143A CN101713418A CN 101713418 A CN101713418 A CN 101713418A CN 200810166143 A CN200810166143 A CN 200810166143A CN 200810166143 A CN200810166143 A CN 200810166143A CN 101713418 A CN101713418 A CN 101713418A
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Abstract
The invention provides a centrifugal type fan, which comprises a fan wheel, a shell and an auxiliary air-inlet flow channel; wherein the fan wheel is rotatably arranged inside the shell; the shell comprises a first air inlet, an air outlet and a second air inlet; and the auxiliary air-inlet flow channel penetrates through the shell from the second air inlet and is arranged to match with the fan wheel in order to enable air inlet flow to flow to the air outlet. Besides particularly carrying out heat dissipation for main heating elements which are positioned near the centrifugal fan, the centrifugal type fan can also extend the external air-inlet flow channel to heat elements far away from the centrifugal fan for heat absorption, and guide the heat to the inside of the centrifugal fan smoothly for heat discharging by using a fluid separation structure inside.
Description
Technical field
The present invention relates to a kind of centrifugal fan, particularly have the centrifugal fan of auxiliary wind inlet.
Background technique
Generally speaking, portable electronic devices, especially notebook computer (notebook) in order to bring into play its maximum usefulness, need radiating module and effectively dispel the heat.If heat accumulation during dissipation in real time, will cause the electronic component in the equipment normally to work at device interior, even can make entire equipment work undesired, especially computer system more can so and crash.Yet notebook computer is in order to adapt to the market demand of mobile, and casing inside can't reserve enough natural convection spaces.Because HFS has faced suitable bottleneck on the execution heat dissipation design, be effectively to get rid of this heat, often on electronic component, add heat removal component such as a radiator or radiation fan to help the eliminating of heat.Therefore, the radiating module of notebook computer dispels the heat towards producing forced convection with centrifugal fan gradually.
See also Fig. 1.Figure 1 shows that the three-dimensional structure diagram of existing centrifugal fan.As shown in Figure 1, this centrifugal fan 1 is applicable to portable electronic devices, notebook computer for example, and this centrifugal fan 1 comprises whirlpool type shell 10 and fan blade 12 at least.Whirlpool type shell 10 has whirlpool type side plate 100 and base plate 102, and whirlpool type shell 10 defines cavity 104 and exhaust outlet 106, wherein cavity 104 forms whirlpool type runner 105 with exhaust outlet 106, and the whirlpool type side plate 100 of a side at exhaust outlet 106 places then becomes tongue degree of lip-rounding shape 1000.The vertical shaft 2 of fan blade 12 is located on the base plate 102 of cavity 104, and fan blade 12 is parallel to vertical shaft 2.When fan blade 12 was rotated, the substantially horizontal air-flow that fan blade 12 is driven produced dynamic pressures and static pressure and the substantially horizontal air-flow is sent via whirlpool type runner 105.Existing exhaust outlet 106 places utilize the curve surface gradual-enlargement pipeline of constant cross-section, the surface 1002 that is the whirlpool type side plate 100 at tongue degree of lip-rounding shape 1000 places is parallel to vertical shaft 2, just surface 1002 is 90 ° with the angle of base plate 102, make gas flow and produce dynamic pressure and static pressure, gas just has enough dynamic pressures and static pressure to resist external drag, reaches the effect of heat radiation.
Yet for compact day by day notebook computer, because the space that notebook computer can ccontaining centrifugal fan relatively reduced, this situation also can make the distance shortening of housing with the wind inlet of centrifugal fan of notebook computer.When centrifugal fan is rotating with same revolution, if the distance of the wind inlet of the housing of notebook computer and centrifugal fan is too close, the relation that can be limited to because of the flow field at wind inlet place causes the housing that is positioned at notebook computer equally, but the heater element far away apart from centrifugal fan can't dispel the heat by centrifugal fan effectively.
Summary of the invention
A purpose of the present invention is to provide a kind of centrifugal fan, make it can solve the above-mentioned problems in the prior art, absorb heat and utilize inlet air runner with the outside to extend to the heater element place far away, and utilize inner fluid partitioning structure that heat extraction is carried out in the inside that heat is directed to centrifugal fan smooth-goingly apart from centrifugal fan.
Centrifugal fan consists predominantly of impeller, housing and auxiliary inlet air runner.Impeller is arranged in the housing rotationally.Housing includes first wind inlet, exhaust outlet and second wind inlet.Auxiliary inlet air runner penetrates housing from second wind inlet, and cooperates the impeller setting to make inlet air air flow direction exhaust outlet.
Another object of the present invention is to provide a kind of centrifugal fan.Centrifugal fan consists predominantly of impeller, housing and body.Impeller is arranged in the housing rotationally.Housing includes wind inlet and exhaust outlet.Stretch in the housing to body portion, and cooperate the impeller setting to make inlet air air flow direction exhaust outlet from second wind inlet.
Therefore, according to centrifugal fan of the present invention, it can be at a newly-increased place, the zone beyond traditional centrifugal fan wind inlet originally or the wind inlet more than the place.And, centrifugal fan proposed by the invention is except being provided with dividing plate with as auxiliary inlet air runner in housing, dividing plate extends towards the exhaust outlet of centrifugal fan from newly-increased wind inlet place, auxiliary inlet air runner also can comprise the extension piece that is arranged at outside the housing, and conducting is to newly-increased wind inlet place.
Thus, useful technique effect of the present invention is, this centrifugal fan is except can be at being positioned near it main heater element dispels the heat, more can utilize inlet air runner with the outside to extend to the heater element place far away and absorb heat, and utilize inner fluid partitioning structure that heat extraction is carried out in the inside that heat is directed to centrifugal fan smooth-goingly apart from centrifugal fan.
Can utilize the following detailed description and accompanying drawings to be further understood about the advantages and spirit of the present invention.
Description of drawings
Figure 1 shows that the three-dimensional structure diagram of an existing centrifugal fan;
Figure 2 shows that three-dimensional combination figure according to the centrifugal fan of first preferred embodiment of the present invention;
Figure 3 shows that centrifugal fan among Fig. 2 is along the axial three-dimensional exploded view of impeller;
Figure 4 shows that three-dimensional combination figure according to the centrifugal fan of second preferred embodiment of the present invention; And
Figure 5 shows that centrifugal fan among Fig. 4 is along the axial three-dimensional exploded view of impeller.
Embodiment
The object of the present invention is to provide a centrifugal fan.It mainly can be at a newly-increased place, the zone beyond the traditional centrifugal fan wind inlet originally or the wind inlet more than the place, and cooperates auxiliary inlet air runner to increase heat absorbing property for everywhere thermal source.Below in detail preferred embodiment of the present invention will be described in detail, in order to the simplicity in abundant explanation feature of the present invention, spirit, advantage and the enforcement.
See also Fig. 2 and Fig. 3.Figure 2 shows that three-dimensional combination figure according to the centrifugal fan 3 of first preferred embodiment of the present invention.Figure 3 shows that centrifugal fan 3 among Fig. 2 is along the three-dimensional exploded view of the axial A1 of impeller 32.As shown in Figure 2, the centrifugal fan 3 according to first preferred embodiment of the present invention includes impeller 32, housing 30 and body 34.Impeller 32 is arranged in the housing 30 rotationally.The housing 30 of centrifugal fan 3 consists predominantly of first wind inlet 3000, exhaust outlet 3002 and second wind inlet 3040.First wind inlet 3000 on the housing 30 is formed at the axial A1 of impeller 32.Exhaust outlet 3002 on the housing 30 is formed at radially (not being shown among the figure) of impeller 32.Second wind inlet 3040 on the housing 30 is formed at the periphery place of impeller 32.
Above-mentioned body 34 partly second wind inlet 3040 from the housing 30 stretches in the housing 30 with as auxiliary inlet air runner (auxiliary inlet flow channel).And, in order the air fluid in the body 34 to be drawn in the housing 30 of centrifugal fan 3 with the air-flow guiding strength of maximum, and unhinderedly discharge from exhaust outlet 3002 along housing 30, the part that above-mentioned body 34 inserts in the housing 30 cooperates impeller 32 settings that the inlet air air-flow is flowed towards exhaust outlet 3002, as shown in Figure 2.
In other words, when the impeller 32 that is arranged in housing 30 rotates, air fluid is except can be from first wind inlet, 3000 air intakes that traditional centrifugal fan 3 all has, guiding that can also be from extra second wind inlet 3040 that is provided with on the housing 30 of centrifugal fan 3 by feat of body 34 and air intake.Thus, if especially at body 34 carry out on the external form with size on design, can be according to demand with above-mentioned body 34 towards specific direction, or outside the housing 30 of centrifugal fan 3, extend to the action that specific range absorbs heat at a distance.
In first preferred embodiment, the number of second wind inlet 3040 that is provided with in the peripheral place of impeller 32 on housing 30 according to the present invention is only one.Yet in practical application, the number of second wind inlet 3040 that is provided with in the periphery place of impeller 32 on housing 30 is not limited to one.In other words, can more than one second wind inlet 3040 be set according to the demand (for example, adapting at least one heater element) in the design.
See also Fig. 3, can clearly be learnt by Fig. 3, the housing 30 of centrifugal fan 3 can further include pedestal 302, sidewall 304 and loam cake 306.Above-mentioned impeller 32 can further be arranged at the pedestal 302 of housing 30 rotationally.The sidewall 304 of housing 30 is arranged at the edge of pedestal 302 and around impeller 32.And above-mentioned exhaust outlet 3002 is formed at sidewall 304.The loam cake 306 of housing 30 is provided with to be connected with sidewall 304 and to be covered in impeller 32 tops.And above-mentioned first wind inlet 3000 can be formed at loam cake 306.
Be noted that in first preferred embodiment that at this second wind inlet 3040 that is provided with in the peripheral place of impeller 32 according to the present invention further is formed on the sidewall 304 of housing 30 on housing 30, but not as limit.In other words, in practical application, second wind inlet 3040 that is provided with in the peripheral place of impeller 32 on housing 30 can also optionally be formed on the pedestal 302 of housing 30 or on the loam cake 306.Certainly, second wind inlet 3040 that is provided with in the peripheral place of impeller 32 on housing 30 can also optionally be formed between sidewall 304 and the pedestal 302, perhaps is formed between loam cake 306 and the sidewall 304.That is, the part of second wind inlet 3040 is formed by the sidewall 304 of housing 30, and another part of second wind inlet 3040 is formed by the pedestal 302 of housing 30; Perhaps the part of second wind inlet 3040 is formed by the loam cake 306 of housing 30, and another part of second wind inlet 3040 is formed by the sidewall 304 of housing 30.
What will replenish in addition is, in first preferred embodiment, the pedestal 302 of above-mentioned housing 30, sidewall 304 and loam cake 306 make up in the mode of assembling, but not as limit.In other words, in practical application, in order can to streamline procedures on technology, to reduce cost, or reduce because of the too much follow-up maintenance problem that causes of builtup member, the pedestal 302 of above-mentioned housing 30, sidewall 304 and loam cake 306 can also be made by integrally formed mode.
See also Fig. 4 and Fig. 5.Figure 4 shows that three-dimensional combination figure according to the centrifugal fan 5 of second preferred embodiment of the present invention.Figure 5 shows that centrifugal fan 5 among Fig. 4 is along the three-dimensional exploded view of the axial A2 of impeller 52.As shown in Figure 4, the centrifugal fan 5 according to second preferred embodiment of the present invention includes impeller 52, housing 50 and auxiliary inlet air runner 54.Impeller 52 is arranged in the housing 50 rotationally.Housing 50 includes first wind inlet 5000 and exhaust outlet 5002.First wind inlet 5000 on the housing 50 is formed on the axial A2 of impeller 52.The footpath that exhaust outlet 5002 on the housing 50 is formed at impeller 52 is (not being shown among the figure) upwards.
Wanting ben at this is, above-mentioned auxiliary inlet air runner 54 outwards is provided with by the housing 50 at impeller 52 periphery places.And above-mentioned auxiliary inlet air runner 54 can communicate by second wind inlet 5042 with housing 50 inside, as shown in Figure 5.In other words, when the impeller 52 that is arranged in housing 50 rotates, air fluid more can be from extra auxiliary inlet air runner 54 air intakes that are provided with on the housing 50 of centrifugal fan 5 except first wind inlet, 5000 air intakes that can all have from traditional centrifugal fan 5.What will replenish in addition is that auxiliary inlet air runner 54 further includes extension piece 540.Extension piece 540 is arranged at housing 50 outer and conducting housing 50 inside.Thus, as long as especially at the extension piece 540 of auxiliary inlet air runner 54 carry out on the external form with size on design, can be according to demand with the extension piece 540 of above-mentioned auxiliary inlet air runner 54 towards specific direction, or outside the housing 50 of centrifugal fan 5, extend to the action that specific range absorbs heat at a distance.
In second preferred embodiment, the number of the auxiliary inlet air runner 54 that is provided with in impeller 52 peripheral places on housing 50 according to the present invention is only one.Yet in practical application, the number of the auxiliary inlet air runner 54 that is provided with in impeller 52 periphery places on housing 50 is not limited to one.In other words, can more than one auxiliary inlet air runner 54 be set according to the demand (for example, according at least one heater element) in the design.
See also Fig. 5, can clearly learn by Fig. 5, in order to assist the air fluid in the inlet air runner 54 to be drawn in the housing 50 of centrifugal fan 5 with the air-flow guiding strength of maximum, and unhinderedly discharge from exhaust outlet 5002 along housing 50, in second preferred embodiment, inwardly can be provided with dividing plate 5040 in auxiliary inlet air runner 54 places according to the housing 50 of centrifugal fan 5 of the present invention.And dividing plate 5040 extends towards exhaust outlet 5002 along housing 50.
Be shown in equally among Fig. 5, the housing 50 of centrifugal fan 5 similarly can further comprise pedestal 502, sidewall 504 and loam cake 506.Impeller 52 is arranged at the pedestal 502 of housing 50 rotationally.The sidewall 504 of housing 50 can be arranged at the edge of pedestal 502 and around impeller 52.And exhaust outlet 5002 further is formed at sidewall 504.The loam cake 506 of housing 50 can be provided with to be connected with sidewall 504 and to be covered in impeller 52 tops.And first wind inlet 5000 of housing 50 can be formed at loam cake 506.
Be noted that in second preferred embodiment at this, by the housing 50 outside auxiliary inlet air runners 54 that are provided with at impeller 52 periphery places, further be formed at the loam cake 506 of housing 50 according to the present invention, but not as limit.In other words, in practical application,, can also optionally be formed on the pedestal 502 of housing 50 or sidewall 504 by the auxiliary inlet air runners 54 that the housings 50 at impeller 52 periphery place outwards are provided with.Certainly, the housing 50 outside auxiliary inlet air runners 54 that are provided with by impeller 52 periphery places can also optionally be formed between sidewall 504 and the pedestal 502, perhaps are formed between loam cake 506 and the sidewall 504.That is, the part of auxiliary inlet air runner 54 is arranged at the sidewall 504 of housing 50, and another part of auxiliary inlet air runner 54 is arranged at the pedestal 502 of housing 50; Perhaps the part of auxiliary inlet air runner 54 is arranged at the loam cake 506 of housing 50, and another part of auxiliary inlet air runner 54 is arranged at the sidewall 504 of housing 50.
What will remark additionally in addition is, in second preferred embodiment, the pedestal 502 of above-mentioned housing 50, sidewall 504 and loam cake 506 make up in the mode of assembling, but not as limit.In other words, in practical application, in order can to streamline procedures on technology, to reduce cost, or reduce because of the too much follow-up maintenance problem that causes of builtup member, the pedestal 502 of above-mentioned housing 50, sidewall 504 and loam cake 506 can also be made by integrally formed mode.
Similarly, in second preferred embodiment, above-mentioned housing 50 makes up with the mode of dividing plate 5040 with assembling, but not as limit.In other words, in practical application, because of above-mentioned same reason, above-mentioned housing 50 can also be made by integrally formed mode with dividing plate 5040.
By above detailed description, can find out significantly that according to centrifugal fan of the present invention, it can be at a newly-increased place, the zone beyond traditional centrifugal fan wind inlet originally or the auxiliary wind inlet more than the place for preferred embodiment of the present invention.And, centrifugal fan proposed by the invention fluid partitioning structure except extending towards the inside of centrifugal fan in newly-increased auxiliary wind inlet place, and can be in newly-increased auxiliary wind inlet place the outside extended inlet air runner towards centrifugal fan.Thus, centrifugal fan proposed by the invention is except can be at being positioned near it main heater element dispels the heat, more can utilize inlet air runner with the outside to extend to the heater element place far away and absorb heat, and utilize inner fluid partitioning structure that heat extraction is carried out in the inside that heat is directed to centrifugal fan smooth-goingly apart from centrifugal fan.
Utilize the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain various changes and have in the category of being arranged in of identity property institute of the present invention desire protection.
Claims (10)
1. a centrifugal fan is characterized in that, comprises:
Impeller;
Housing, above-mentioned impeller are arranged in the above-mentioned housing rotationally, and above-mentioned housing comprises first wind inlet, exhaust outlet and second wind inlet; And
Auxiliary inlet air runner penetrates above-mentioned housing from above-mentioned second wind inlet.
2. centrifugal fan according to claim 1 is characterized in that, above-mentioned first wind inlet is formed at the axial of above-mentioned impeller, and above-mentioned exhaust outlet is formed at above-mentioned impeller radially, and above-mentioned second wind inlet is formed at the periphery place of above-mentioned impeller.
3. centrifugal fan according to claim 1 is characterized in that, above-mentioned housing also comprises:
Pedestal, above-mentioned impeller is arranged at said base rotationally;
Sidewall is arranged at the edge of said base and around above-mentioned impeller, above-mentioned exhaust outlet is formed at above-mentioned sidewall; And
Loam cake is provided with to be connected with above-mentioned sidewall and to be covered in above-mentioned impeller top, and above-mentioned first wind inlet is formed at above-mentioned loam cake.
4. centrifugal fan according to claim 3 is characterized in that, said base, above-mentioned sidewall and above-mentioned loam cake are integrally formed.
5. centrifugal fan according to claim 3 is characterized in that, above-mentioned second wind inlet optionally is formed at said base, above-mentioned sidewall or above-mentioned loam cake.
6. centrifugal fan according to claim 3 is characterized in that, above-mentioned second wind inlet optionally be formed between above-mentioned sidewall and the said base or above-mentioned loam cake and above-mentioned sidewall between.
7. centrifugal fan according to claim 1 is characterized in that, above-mentioned auxiliary inlet air runner is a body, stretches in the above-mentioned housing from above-mentioned second wind inlet to the aforementioned tube body portion.
8. centrifugal fan according to claim 1 is characterized in that, above-mentioned auxiliary inlet air runner comprises the dividing plate that is arranged in the above-mentioned housing, and aforementioned barriers is extended towards above-mentioned exhaust outlet from above-mentioned second wind inlet.
9. centrifugal fan according to claim 8 is characterized in that above-mentioned housing and aforementioned barriers are integrally formed.
10. centrifugal fan according to claim 8 is characterized in that, above-mentioned auxiliary inlet air runner comprises extension piece, and above-mentioned extension piece is arranged at outer and above-mentioned second wind inlet of conducting of above-mentioned housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810166143A CN101713418A (en) | 2008-10-08 | 2008-10-08 | Centrifugal type fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810166143A CN101713418A (en) | 2008-10-08 | 2008-10-08 | Centrifugal type fan |
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| Publication Number | Publication Date |
|---|---|
| CN101713418A true CN101713418A (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810166143A Pending CN101713418A (en) | 2008-10-08 | 2008-10-08 | Centrifugal type fan |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536850A (en) * | 2010-12-14 | 2012-07-04 | 台达电子工业股份有限公司 | Centrifugal fan |
| CN102996516A (en) * | 2011-09-19 | 2013-03-27 | 台达电子工业股份有限公司 | Electronic device and heat dissipation module and centrifugal fan thereof |
| CN103790864A (en) * | 2012-10-31 | 2014-05-14 | 英业达科技有限公司 | Fan |
| CN106292944A (en) * | 2015-05-29 | 2017-01-04 | 联想(北京)有限公司 | A kind of fan and electronic equipment |
| CN108837538A (en) * | 2018-06-25 | 2018-11-20 | 湖南尚花科技有限公司 | A kind of cool flame fire-fighting hair equipment |
-
2008
- 2008-10-08 CN CN200810166143A patent/CN101713418A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536850A (en) * | 2010-12-14 | 2012-07-04 | 台达电子工业股份有限公司 | Centrifugal fan |
| CN102536850B (en) * | 2010-12-14 | 2016-03-16 | 台达电子工业股份有限公司 | Centrifugal fan |
| CN102996516A (en) * | 2011-09-19 | 2013-03-27 | 台达电子工业股份有限公司 | Electronic device and heat dissipation module and centrifugal fan thereof |
| CN102996516B (en) * | 2011-09-19 | 2015-08-05 | 台达电子工业股份有限公司 | Electronic equipment and radiating module thereof and centrifugal cutter thereof |
| CN103790864A (en) * | 2012-10-31 | 2014-05-14 | 英业达科技有限公司 | Fan |
| CN106292944A (en) * | 2015-05-29 | 2017-01-04 | 联想(北京)有限公司 | A kind of fan and electronic equipment |
| CN106292944B (en) * | 2015-05-29 | 2020-08-25 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN108837538A (en) * | 2018-06-25 | 2018-11-20 | 湖南尚花科技有限公司 | A kind of cool flame fire-fighting hair equipment |
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Application publication date: 20100526 |