CN101155493B - Heat radiating device - Google Patents
Heat radiating device Download PDFInfo
- Publication number
- CN101155493B CN101155493B CN 200610062823 CN200610062823A CN101155493B CN 101155493 B CN101155493 B CN 101155493B CN 200610062823 CN200610062823 CN 200610062823 CN 200610062823 A CN200610062823 A CN 200610062823A CN 101155493 B CN101155493 B CN 101155493B
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- CN
- China
- Prior art keywords
- fin
- air outlet
- base
- housing
- fins group
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Abstract
A cooling equipment comprises a exhaust fan provided with an outlet wherein a radiator is arranged. The outlet of the exhaust fan has a proximal end and a distal end. Air flow coming from the outlet blows from the poximal end to the distal end. The radiator comprises the first fin array and the second fin array. The first fin array which is arranged near the distal end of the outlet contains a plurality of first fins integrally formed with the exhoust fan, while the second fin array which is arranged near the proximal end of the outlet contains a plurality of stacked second fins made independently.
Description
Technical field
The present invention relates to a kind of heat abstractor, particularly about a kind of heat abstractor that is used for electronic element radiating.
Background technology
Current, for the heats that heat-generating electronic elements produced such as little process chip are effectively distributed, existing method is to adopt a heat abstractor that heat-generating electronic elements is dispelled the heat.This heat abstractor comprises a fan and is located at a radiator of this fan outlet, this radiator and heat-generating electronic elements hot link also absorb the heat of its generation, the air-flow that this fan produces and the fin heat-shift of this radiator also distribute the heat of its absorption, thereby reach the purpose of heat radiation.
Originally this radiator is made up of the fin of the housing one die cast of some and fan.Yet along with the continuous development of electronics industry, the processing speed of heat-generating electronic elements such as little process chip is more and more faster, and the heat that is produced is also just more and more thereupon.Because the fin of die cast is subjected to the restriction of die casting condition of molding, the spacing between the width of single fin and height and fin and the fin all has certain restriction and requirement, otherwise fin can't be used mould molding.So just make radiator total cooling surface area deficiency in limited space, heat dispersion can't be improved, thereby can not satisfy the demand to the heat-generating electronic elements heat radiation of golf calorific value.
In order to satisfy the demand of heat radiation, a kind of heat abstractor that adopts the radiator of buckle-type has appearred again, this radiator is piled up by the fin of number of plate-shaped and forms, because fin is to separate manufacturing with the housing of fan, therefore the width and the spacing between fin and the fin of single fin can be done forr a short time than the fin of die casting.Compare with the radiator of die cast, the radiator of buckle-type has bigger cooling surface area in identical volume, and heat dispersion is effectively promoted.But the manufacturing cost of this buckle-type radiator is higher, thereby makes the cost of entire heat dissipation device higher.
Summary of the invention
In view of this, being necessary to provide a kind of has preferable heat dispersion and has the heat abstractor of lower cost simultaneously again.
A kind of heat abstractor, comprise a radiator fan and a radiator, this radiator fan is provided with an air outlet, this air outlet has a near-end and a far-end, the air-flow that is blown out by air outlet blows to far-end by this near-end, this radiator is located at this air outlet place, this radiator comprises first fins group and second fins group, this first fins group is near the far-end setting of this air outlet, it comprises some and integrated first fin of radiator fan, this second fins group is near the near-end setting of this air outlet, and it comprises some independent second fin of making that is stacked.
A kind of heat abstractor, comprise a centrifugal fan, a heat pipe and some fin of being located at the air outlet place of this centrifugal fan, one end of described heat pipe and a heat-generating electronic elements hot link, the other end and described fin hot link, described fin comprises that some first fin and plurality of stacked with centrifugal fan one die cast fasten second fin that forms, described second fin is arranged on the bigger zone of air-flow velocity, air outlet place, and described first fin is arranged on the less zone of air-flow velocity, air outlet place.
Compared with prior art, this heat abstractor is by forming and second fins group of the big area of dissipation of tool by piling up at corresponding air-flow velocity of air outlet and the bigger proximal end region setting of flow, and integrated first fins group is set in the corresponding air-flow velocity smaller distal of air outlet zone, be provided with like this when the radiator fan air-flow is fully used and make heat abstractor have lower production cost, the tool high cost performance.
Description of drawings
With reference to the accompanying drawings, in conjunction with the embodiments the present invention is further described.
Fig. 1 is the three-dimensional exploded view of heat abstractor preferred embodiment of the present invention.
Fig. 2 is the three-dimensional assembly diagram of heat abstractor shown in Figure 1.
Fig. 3 is the part assembly drawing of another angle of heat abstractor shown in Figure 1.
Fig. 4 is the vertical view that heat abstractor shown in Figure 2 removes loam cake.
Embodiment
Figure 1 shows that a wherein preferred embodiment of heat abstractor 10 of the present invention, this heat abstractor 10 comprises the heat pipe 13 and a radiator fan 14 of a radiator 12, a flat, this heat abstractor 10 is suitable for the heat radiation of portable type electronic products such as notebook computer, and this heat pipe 13 has an evaporation section 132 and a condensation segment 131.
This radiator fan 14 is a centrifugal fan, and it comprises that a housing 141 and has the rotor 142 of some flabellum 142a, and this rotor 142 is installed in this housing 141.This housing 141 comprises a base 143 and is located at a cover plate 144 on this base 143.This cover plate 144 is a plate body, and its middle part is provided with the air intake vent 145 of a circle.This base 143 comprises the sidewall 147 of a base plate 146 and a volute, and this sidewall 147 is provided with the air outlet 148 of a linear.Form a runner 149 between the outermost end of the flabellum 142a of the inwall of this sidewall 147 and rotor 142, the width of this runner 149 is the rotation direction of rotor 142 broaden gradually (shown in Figure 4) in the counterclockwise direction.This radiator fan 14 has a near-end 148a and a far-end 148b at air outlet 148 places, when radiator fan 14 in the running, the cooling blast that is produced arrives the near-end 148a of air outlet 148 earlier, arrive the far-end 148b of air outlet 148 again, and the flow velocity that flows through the cooling blast in near-end 148a zone is greater than the flow velocity of far-end 148b zone cooling blast.By simulation analysis as can be known, the flow that near-end 148a one side of the air outlet 148 of radiator fan 14 accounts for the air-flow that the zone is flow through of air outlet 148 width 1/3 is about half of air-flow total flow, therefore, on the area that equates, the flow of cooling blast that flows through near-end 148a zone is much larger than the flow of far-end 148b zone cooling blast.The downside of this base plate 146 is provided with a rounded trenches 151 (shown in Figure 3), and heat pipe 13 is contained in this groove 151.
This radiator 12 is located at air outlet 148 places of radiator fan 14, it comprises second fins group 122 near the near-end 148a setting of first fins group 121 of the far-end 148b setting of air outlet 148 and close air outlet 148, the width of these second fins group, 122 shared air outlets 148 is less than the width of these first fins group, 121 shared air outlets 148 in the present embodiment, the width of these second fins group, 122 shared air outlets 148 can be air outlet 148 integral width 1/4 to 1/2 between, so that this second fins group 122 conforms to the airflow state at these air outlet 148 places with the width of first fins group, 121 shared air outlets 148, to bring into play maximum heat dissipation, reach the purpose of controlling cost simultaneously.In the present embodiment, 1/3 of these second fins group, 122 shared air outlet 148 integral width.This first fins group 121 comprises some first fin 121a that extend from base plate 146 one of base 143, and 121a is vertical with base plate 146 for these first fin, and the shape that is arranged in a straight line on the whole, to match with the air outlet 148 of radiator fan 14.Described first fin 121a and base 143 are made for one die casting, and the described first fin 121a has bigger thickness, and the distance between the adjacent two first fin 121a is also bigger.In the present embodiment, the thickness of the described first fin 121a is 1.0mm, and the distance between the adjacent two first fin 121a is 1.5mm.
This second fins group 122 comprises the second fin 122a of number of plate-shaped, the described second fin 122a is made by the metal of sheet, it comprises that a roughly rectangular main body 123 reaches on this main body 123, following two ends are to the flanging 124 of main body 123 1 lateral bucklings, the flanging 124 of back one second fin 122a and the flanging 124 mutual snappings of the last second fin 122a are against forming this second fins group 122, on the described second fin 122a, the flanging 124 at following two ends forms the upper surface (not label) and the lower surface 125 of this second fins group 122 respectively, forms a spacing simultaneously and pass through for the cooling blast that radiator fan 14 is produced between adjacent two second fin 122a.Be appreciated that ground, the described second fin 122a also can have clasp and fastening hole, makes the described second fin 122a form an integral body by the mutual fastening between clasp and the fastening hole.This second fins group 122 is contained in the near-end 148a place of air outlet 148, the lower surface 125 of the bottom surface of this first fins group 121 and this second fins group 122 contacts with the condensation segment 131 of heat pipe 13 in being located at groove 151 simultaneously, increasing the heat exchanger effectiveness of heat pipe 13 and the first fin 121a and the second fin 122a, the evaporation ends 132 of this heat pipe 13 is connected with central processing unit (scheming not show) in a heat-generating electronic elements such as the notebook computer.Because the second fin 122a is made by the metal of sheet, the thickness of the second fin 122a can be done lessly, and the spacing between the adjacent two second fin 122a also can be done lessly.In the present embodiment, the thickness of the described second fin 122a is 0.2mm, and the distance between the adjacent two second fin 122a is 1.1mm.
In the present embodiment, this first fins group 121 is compared with second fins group 122, and the first fin 121a of first fins group 121 and the base 143 of fan can utilize the mould one-shot forming, and production cost is lower.The second fin 122a of second fins group 122 is made by the metal of sheet, the thickness of such second fin 122a and sheet are compared all less with the spacing between the sheet with the first fin 121a, therefore, the second fin 122a of second fins group 122 that density is set is bigger, total area of dissipation of second fins group 122 is bigger on the unit volume.
In the present embodiment, second fins group 122 of the big area of dissipation of tool is set by the near-end 148a zone at the bigger air outlet 148 of the flow velocity of air-flow and flow, and lower-cost first fins group 121 is set in the flow velocity and the flow smaller distal 148b zone of air-flow, be provided with like this when the cooling blast that radiator fan 14 is produced is fully used and make entire heat dissipation device 10 have lower production cost.Compare with the traditional heat-dissipating device of fan one die cast with whole employing of fin, heat abstractor 10 in the present embodiment is owing to make second fins group 122 of the big area of dissipation of apparatus, so the integral heat sink performance of heat abstractor 10 is highly improved in the near-end 148a zone of the bigger air outlet 148 of the flow velocity of air-flow and flow.Compare with the traditional heat-dissipating device of full employing buckle-type fin, heat abstractor 10 in the present embodiment still keeps base 143 integrated first fins group 121 that are provided with fan in the far-end 148b zone of the less air outlet 148 of the flow velocity of air-flow and flow, reduces production costs under the little situation of heat dispersion influence.Therefore, this heat abstractor 10 is compared the tool high cost performance with traditional heat abstractor.
Claims (9)
1. heat abstractor, comprise a radiator fan and a radiator, this radiator fan is provided with an air outlet, this air outlet has a near-end and a far-end, the air-flow that is blown out by air outlet blows to far-end by this near-end, this radiator is located at this air outlet place, it is characterized in that: this radiator fan comprises a housing and is located at the interior rotor of this housing, this radiator comprises first fins group and second fins group, this first fins group is near the far-end setting of this air outlet, this first fins group comprises and integrated some first fin of the housing of radiator fan, this second fins group is near the near-end setting of this air outlet, this second fins group comprises piles up some independent second fin of making that snaps together, this base comprises a base plate and a sidewall vertical with this base plate, this base plate is provided with a groove, contains a heat pipe in this groove, and an end of this heat pipe contacts with the lower surface of second fins group.
2. heat abstractor as claimed in claim 1, it is characterized in that: the housing of this radiator fan comprises a base and is located at a cover plate on this base, described first fin and this base one die casting are made, and described second fin is made by the metal stamping of sheet.
3. heat abstractor as claimed in claim 1, it is characterized in that: this radiator fan is a centrifugal fan, and this housing comprises a base and be located at a cover plate on this base that this cover plate is provided with an air intake vent, this base comprises a base plate and a sidewall, and this air outlet is located on this sidewall.
4. heat abstractor as claimed in claim 1 is characterized in that: the spacing between per two adjacent second fin is less than the spacing between per two adjacent first fin.
5. heat abstractor as claimed in claim 1 is characterized in that: the thickness of each second fin is less than the thickness of each first fin.
6. heat abstractor as claimed in claim 1 is characterized in that: this second fins group accounts for 1/4 to 1/2 of air outlet integral width.
7. heat abstractor as claimed in claim 2 is characterized in that: this base is provided with a rotor, forms a runner between this base and the rotor, and the width of this runner broadens gradually along the rotation direction of rotor.
8. heat abstractor, comprise a centrifugal fan, one heat pipe and some fin of being located at the air outlet place of this centrifugal fan, one end of described heat pipe and a heat-generating electronic elements hot link, the other end and described fin hot link, it is characterized in that: this centrifugal fan comprises a housing and is located at the interior rotor of this housing, described fin comprises separating with some first fin of the housing one die cast of centrifugal fan and with housing to be made and piles up some second fin that snap together, described second fin is arranged on the bigger zone of air-flow velocity, air outlet place, and described first fin is arranged on the less zone of air-flow velocity, air outlet place, the housing of this centrifugal fan comprises a base, be provided with a groove in this base, described heat pipe is housed in this groove and with the bottom surface of described first fin and second fin and contacts.
9. heat abstractor as claimed in claim 8 is characterized in that: described second fin accounts for 1/4 to 1/3 of air outlet integral width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610062823 CN101155493B (en) | 2006-09-27 | 2006-09-27 | Heat radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610062823 CN101155493B (en) | 2006-09-27 | 2006-09-27 | Heat radiating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101155493A CN101155493A (en) | 2008-04-02 |
| CN101155493B true CN101155493B (en) | 2011-06-08 |
Family
ID=39256831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610062823 Expired - Fee Related CN101155493B (en) | 2006-09-27 | 2006-09-27 | Heat radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101155493B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009033909A1 (en) * | 2009-07-20 | 2011-01-27 | Automotive Lighting Reutlingen Gmbh | Headlamp with a cooling device |
| CN102340970A (en) * | 2010-07-26 | 2012-02-01 | 富瑞精密组件（昆山）有限公司 | Heat dissipation apparatus |
| TWI480471B (en) * | 2011-05-24 | 2015-04-11 | Compal Electronics Inc | Fan module |
| CN104105379B (en) * | 2013-04-12 | 2017-06-09 | 技嘉科技股份有限公司 | Radiating subassembly and display card module |
| TWI594688B (en) | 2014-11-14 | 2017-08-01 | 廣達電腦股份有限公司 | Heat dissipating module |
| CN109065909A (en) * | 2018-08-02 | 2018-12-21 | 中氢新能技术有限公司 | Fuel cell heat spreader structures |
| CN110939609A (en) * | 2019-12-05 | 2020-03-31 | 深圳微步信息股份有限公司 | Anti-backflow centrifugal fan system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217026Y (en) * | 1994-06-15 | 1996-01-10 | 扎纳西公司 | Washing machine with improved shell |
-
2006
- 2006-09-27 CN CN 200610062823 patent/CN101155493B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217026Y (en) * | 1994-06-15 | 1996-01-10 | 扎纳西公司 | Washing machine with improved shell |
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| Publication number | Publication date |
|---|---|
| CN101155493A (en) | 2008-04-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20140927 |
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| EXPY | Termination of patent right or utility model |