CN1142404C - Composite high-density heat radiator and its making process - Google Patents
Composite high-density heat radiator and its making process Download PDFInfo
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- CN1142404C CN1142404C CNB001348515A CN00134851A CN1142404C CN 1142404 C CN1142404 C CN 1142404C CN B001348515 A CNB001348515 A CN B001348515A CN 00134851 A CN00134851 A CN 00134851A CN 1142404 C CN1142404 C CN 1142404C
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- fin
- radiating
- bottom plate
- radiating bottom
- heat radiator
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- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention relates to a structure of a composite type high density radiation device and a making method thereof. A first extrusion type radiation fin and a second extrusion type radiation fin are first provided. The first extrusion type radiation fin and the second extrusion type radiation fin are respectively provided with radiation bottom boards and a plurality of radiation fins which are formed on the radiation bottom boards. The spacing between the radiation fins is equal. Then, the radiation fins of the first extrusion type radiation fin and the second extrusion type radiation fin mutually correspond, and the first extrusion type radiation fin and the second extrusion type radiation fin are processed and connected together. All tops and partial tops of the radiation fins of the first extrusion type radiation fin are connected with the radiation bottom board of the second extrusion type radiation fin, and all tops and partial tops of the radiation fins of the second extrusion type radiation fin are connected with the radiation bottom board of the first extrusion type radiation fin.
Description
The present invention relates to a kind of heat abstractor and manufacture method thereof, particularly relate to a kind of high-density heat radiator and manufacture method thereof.
Present employed electronic component all can produce heat, especially works as ic manufacturing technology and reaches all the more, and the circuit element that is comprised in the unit are is also many more, and the service speed of electronic component also increases considerably simultaneously, and electronic component can produce high heat thus.
Produce hot problem in order to solve electronic component, thereby can be prolonged the useful life of electronic component, just develop several heat abstractors, in order to the heat that electronic component produced is transmitted to the external world, to reduce the temperature of electronic component itself.
Reaching high cooling efficiency for the heat radiation density in the unit are that increases heat abstractor is a kind of common method.
Present manufacturing method of heat sink comprises crowded type, dull and stereotyped punching press, aluminium die casting, forging, machining or the like method.Yet, no matter be the fin which kind of manufacture method manufactures, the limit in its processing is all arranged.For reaching when higher radiating efficiency is arranged, just must change the higher mode of manufacture method cost produces fin usually, thereby has improved manufacturing cost.
With regard to squeezing the type fin, as shown in Figure 1, when squeezing the type fin, design only can design single geometric cross section, and the ratio (L/D) of (D) between the radiating fin height (L) of crowded type fin and the gap between the Fin sheet, the material limits that can be subjected to mould strength limits.Therefore, L/D ratio maximum can only be between 10～15.Radiating effect when generally speaking, the high more or Fin sheet interval D of Fin sheet height L is narrow more can be good more.But be subjected to the restriction of the die sinking limit of mould own on the practice, Fin sheet interval D often can't be De Taimi, so heat radiation density (area of dissipation that is comprised in the unit volume) also is restricted.
With regard to aluminium die-casting die fin, also can be subjected to the influence of the factors such as demoulding strength of mould strength, material flowability and the finished product demoulding, its heat radiation density is restricted.Moreover, with regard to forging type fin, also can be subjected to factors such as mould strength and material flowability, the ratio (L/T) that makes radiating fin height (L) and Fin sheet thickness (T) is about only between 30～60, and therefore heat radiation density be restricted and undesirable.
Therefore, with existing technology, when the heat radiation density of squeezing the type fin can't reach requirement, just change the fin that uses aluminium die-casting die or forging type and satisfy demand on designing.Yet the die cost of aluminium die-casting die fin is 10～50 times of the die cost of squeezing the type fin, and the cost of aluminium die-casting die fin finished product is for squeezing 5～30 times of type fin finished product.Therefore, when the mould of lower cost and finished product can't satisfy the high cooling efficiency design requirement, if transfer the heat radiation finished product that adopts expensive manufacture method to, then the result was whole manufacturing cost raising and is unfavorable for market competition.
In sum, when needing the design of high cooling efficiency, existing fin manufacture method often can't satisfy or the mould and the higher-priced finished product of needs cost more with high investment, thereby makes cost improve and product market competitiveness descends.
The object of the present invention is to provide a kind of composite high-density heat radiator manufacture method, it can be in the fin manufacture method of lower cost, produces to have high heat radiation density to reach the fin of high cooling efficiency.
Another object of the present invention is to provide a kind of composite high-density heat radiator manufacture method, it can not change under the existing manufacture method condition, increases the radiating efficiency of fin.
The present invention seeks to realize like this, a kind of composite high-density heat radiator manufacture method promptly is provided, comprise: one first and one second fin is provided, this first with this second fin have one first radiating bottom plate, second radiating bottom plate and with a plurality of radiating fins that are formed on this two radiating bottom plate; And it is respectively that this is first interlaced with each other relative with each radiating fin of this second fin, and this first is coupled together with the processing of this second fin, at least a portion top of each radiating fin of this first fin is connected with this second radiating bottom plate of this second fin, and at least a portion top of each radiating fin of this second fin is connected with this first radiating bottom plate of this first fin.
In addition, be the assembling elasticity of enhancement with heat-generating electronic elements, this high-density heat radiator becomes and can be respectively to dispose another radiating bottom plate again at the edge of the radiating bottom plate of first and second crowded type fin, and it is parallel with radiating fin, the radiating bottom plate that makes each don't push type fin have a L type.
The present invention also provides a kind of composite high-density heat radiator manufacture method, comprise: one first and one second fin is provided, this first has one first radiating bottom plate, one second radiating bottom plate and is formed on a plurality of radiating fins on this two radiating bottom plate with this second fin, wherein also have one the 3rd radiating bottom plate to be configured in a side of this first or second radiating bottom plate, make this first or this second radiating bottom plate and the 3rd radiating bottom plate be roughly a L type; And it is respectively that this is first interlaced with each other relative with each radiating fin of this second fin, and this first is coupled together with the processing of this second fin, wherein this first is connected to each other with first or this second radiating bottom plate and the 3rd radiating bottom plate of this second fin, forming a thermally conductive pathways, and with this each radiating fin around living.
The present invention also provides a kind of composite high-density heat radiator, comprising: one first fin has one first radiating bottom plate and a plurality of first radiating fins that are disposed on this first radiating bottom plate; And one second fin, have one second radiating bottom plate and a plurality of second radiating fins that are disposed on this second radiating bottom plate, wherein this first with this second fin each first with should each second radiating fin relative arrangement interlaced with each other, at least the above top of a slice of each first radiating fin of this first fin is connected with second radiating bottom plate of this second fin, and the above top of a slice at least of each second radiating fin of this second fin is connected with first radiating bottom plate of this first fin.
The present invention also provides a kind of composite high-density heat radiator, comprise: first, second fin is provided, this first, second fin has one first, 1 second radiating bottom plate and a plurality of radiating fins that are configured on this first, second radiating bottom plate, wherein also have the side that one the 3rd radiating bottom plate is configured in this first radiating bottom plate, make this first with the 3rd radiating bottom plate be roughly a L type; Also have the one hot base plate that scatters and be configured in a side of this second radiating bottom plate, make this second be roughly a L type with this hot base plate that scatters, wherein this first with each radiating fin of this second fin relative arrangement interlaced with each other, and this first is coupled together with the processing of this second fin, wherein first radiating bottom plate of this first fin and the 3rd radiating bottom plate are connected to each other, second of this second fin is connected to each other with this hot base plate that scatters, forming a thermally conductive pathways, and with each first with each second radiating fin around living.Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the existing structural representation that squeezes type;
Fig. 2 is the cutaway view of the produced composite high-density heat radiator of first embodiment of the invention;
Fig. 3 is the schematic perspective view of the fin in the first embodiment of the invention;
Fig. 4 is the cutaway view of the produced composite high-density heat radiator of second embodiment of the invention;
Fig. 5 is the schematic perspective view of fin in the second embodiment of the invention;
Fig. 6 is the schematic perspective view corresponding to the composite high-density heat radiator of Fig. 3.
Fig. 2 illustrates the generalized section of the high-density heat radiator that comes out according to the first embodiment of the invention made.First and second fin 110,120 at first is provided, and for example is to squeeze the type fin.This first and second crowded type fin 110,120 has a radiating bottom plate 112,112 and several respectively and is formed at radiating fin 114,124 on the radiating bottom plate 112,122.Be that equidistantly its spacing is represented with D between each radiating fin.After the heat that radiating bottom plate 112 and 122 can make electronic component produce scatter equably, conduct the heat to the external world from radiating fin 114,124 again, for example in the air, temperature of electronic component is reduced with this.Generally speaking, radiating bottom plate has an enough thickness, to reach the scattered equably function of heat.Fig. 3 illustrates the schematic perspective view of the first or second above-mentioned fin 110,120.
Then, with the radiating fin 114,124 of first and second crowded type fin 110,120 toward each other, and first and second crowded type fin 110,120 processing are coupled together, with this first top of squeezing the radiating fin 114 of type fin 110 can be connected with second radiating bottom plate 122 that squeezes type fin 120, and second top of squeezing the radiating fin 124 of type fin 120 can be connected with first radiating bottom plate 112 that squeezes type fin 110.The top of above-mentioned radiating fin 114 can all be connected to the radiating bottom plate 122 of the second crowded type fin 120.As long as the top of at least more than one radiating fin 114 is connected to second and squeezes on the radiating bottom plate 122 of type fin 120.In the same manner, the top of radiating fin 124 can all be connected to the radiating bottom plate 112 of the first crowded type fin 110.As long as the top of at least more than one radiating fin 124 is connected to first and squeezes on the radiating bottom plate 112 of type fin 110.That is, promptly can reach two crowded type fin of connection as long as there is the top of the radiating fin 114 of part to connect with relative radiating bottom plate.
Formed thus composite high-density heat radiator 100, the spacing of its radiating fin just is reduced into d.As shown in the figure, the spacing between the Fin sheet is dwindled widely by the spacing that the D of single fin originally shortens to combined type.That is, in the unit volume, heat radiation density increases widely.
So, just do not need to use expensive mould to produce high heat radiation density, only need two crowded type fin are processed just a little and can finish the fin that meets design requirement.Therefore, or else need to develop under the condition of new die the composite high-density heat radiator that just can produce low cost and have high heat radiation density.
Fig. 4 illustrates the generalized section of the high-density heat radiator that comes out according to the second embodiment of the invention made.At first, providing first and second fin 210,220, for example is to squeeze the type fin.This first and second crowded type fin 210,220 has a radiating bottom plate 212,222 and several respectively and is formed at radiating fin 214,224 on the radiating bottom plate 212,222.Be that equidistantly its spacing is represented with D between each radiating fin.Simultaneously, first fin 210 more disposes the side of a radiating bottom plate 216 in radiating bottom plate 212, and wherein radiating bottom plate 212 roughly is a L type with radiating bottom plate 216, and radiating bottom plate 216 is also parallel with radiating fin 214 haply.In like manner, second fin 220 also disposes a radiating bottom plate 226 in a side of radiating bottom plate 222, and wherein radiating bottom plate 226 roughly is a L type with radiating bottom plate 222, and radiating bottom plate 226 is also parallel with radiating fin 224 haply.Fig. 5 illustrates the schematic perspective view of the first or second above-mentioned fin 210,220.
Then, with the radiating fin 214,224 of first and second crowded type fin 210,220 toward each other, and first and second crowded type fin 210,220 processing are coupled together, with this first top of squeezing the radiating fin 214 of type fin 210 can be connected with second radiating bottom plate 222 that squeezes type fin 220, and second top of squeezing the radiating fin 224 of type fin 220 can be connected with first radiating bottom plate 212 that squeezes type fin 210.Formed thus composite high-density heat radiator 200, the spacing of its radiating fin just is reduced into d.As shown in the figure, the spacing between the Fin sheet is dwindled greatly by the spacing that the D of single fin originally shortens to combined type.That is, in the unit volume, heat radiation density increases greatly.
The top of above-mentioned radiating fin 214 can all be connected to the radiating bottom plate 222 of the second crowded type fin 220.As long as the top of at least more than one radiating fin 214 is connected to second and squeezes on the radiating bottom plate 222 of type fin 220.In the same manner, the top of radiating fin 224 can all be connected to the radiating bottom plate 212 of the first crowded type fin 210.As long as the top of at least more than one radiating fin 224 is connected to first and squeezes on the radiating bottom plate 212 of type fin 210.
In addition, owing to first and second fin 210,220 among this embodiment has L type radiating bottom plate 212+216,222+226 respectively.Therefore, as long as utilize the radiating bottom plate of these two L types to connect two fin, just the top of radiating fin can be connected on the relative radiating bottom plate.
Above-mentioned radiating bottom plate 212,216,222 and 226 can surround all radiating fins 214,224.After the heat that radiating bottom plate 212,216,222 and 226 can make electronic component produce scatter equably, conduct the heat to the external world from radiating fin 214,224 again, for example in the air, temperature of electronic component is reduced with this.Generally speaking, radiating bottom plate has an enough thickness, to reach the scattered equably function of heat.Fig. 6 then illustrates the schematic perspective view corresponding to the high-density heat radiator of Fig. 4.As shown in the figure, the density of radiating fin greatly increases, and all around surrounds by radiating bottom plate, apace heat is evenly spread to the radiating fin bottom so that thermally conductive pathways to be provided, and makes heat be released to the external world.
So, just do not need to use expensive mould to produce high heat radiation density, only need two crowded type fin are processed just a little and can finish the fin that meets design requirement.Therefore, do not needing to develop under the condition of new die the composite high-density heat radiator that just can produce low cost and have high heat radiation density.
In sum, composite high-density heat radiator manufacture method of the present invention has following advantage and effect under compared with prior art at least:
According to composite high-density heat radiator manufacture method of the present invention, it can produce the fin with high heat radiation density in the fin manufacture method of existing lower cost.
According to composite high-density heat radiator manufacture method of the present invention, it can not change under the existing manufacture method condition, increases the radiating efficiency of fin.
In sum; disclosed the present invention in conjunction with above preferred embodiment, yet it is not that any those skilled in the art without departing from the spirit and scope of the present invention in order to qualification the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (20)
1. composite high-density heat radiator manufacture method comprises:
One first and one second fin is provided, this first with this second fin have one first radiating bottom plate, second radiating bottom plate and with a plurality of radiating fins that are formed on this two radiating bottom plate; And
Respectively that this is first interlaced with each other relative with each radiating fin of this second fin, and this first is coupled together with the processing of this second fin, at least a portion top of each radiating fin of this first fin is connected with this second radiating bottom plate of this second fin, and at least a portion top of each radiating fin of this second fin is connected with this first radiating bottom plate of this first fin.
2. composite high-density heat radiator manufacture method as claimed in claim 1 is characterized in that, this first and each radiating fin of this second fin between be equidistant.
3. composite high-density heat radiator manufacture method as claimed in claim 1 is characterized in that, this first with this second fin for squeezing the type fin.
4. composite high-density heat radiator manufacture method as claimed in claim 1 is characterized in that, constitute this first with the material of this second fin be metallic aluminium.
5. composite high-density heat radiator manufacture method as claimed in claim 1 is characterized in that, this first is to utilize machining and couple together with this second fin.
6. composite high-density heat radiator manufacture method comprises:
One first and one second fin is provided, this first has one first radiating bottom plate, one second radiating bottom plate and is formed on a plurality of radiating fins on this two radiating bottom plate with this second fin, wherein also have one the 3rd radiating bottom plate to be configured in a side of this first or second radiating bottom plate, make this first or this second radiating bottom plate and the 3rd radiating bottom plate be roughly a L type; And
Respectively that this is first interlaced with each other relative with each radiating fin of this second fin, and this first is coupled together with the processing of this second fin, wherein this first is connected to each other with first or this second radiating bottom plate and the 3rd radiating bottom plate of this second fin, forming a thermally conductive pathways, and with this each radiating fin around living.
7. composite high-density heat radiator manufacture method as claimed in claim 6, it is characterized in that, comprise that also the operative tip with each radiating fin of this first fin is connected with this second radiating bottom plate of this second fin, and the operative tip of each radiating fin of this second fin is connected with this first radiating bottom plate of this first fin.
8. composite high-density heat radiator manufacture method as claimed in claim 6 is characterized in that, this first and each radiating fin of this second fin between be equidistant.
9. composite high-density heat radiator manufacture method as claimed in claim 6 is characterized in that, this first, the thickness of this second and the 3rd radiating bottom plate is identical.
10. composite high-density heat radiator manufacture method as claimed in claim 6 is characterized in that, this first with this second fin for squeezing the type fin.
11. composite high-density heat radiator manufacture method as claimed in claim 6 is characterized in that, constitute this first with the material of this second fin be metallic aluminium.
12. composite high-density heat radiator manufacture method as claimed in claim 6 is characterized in that, this first with this second fin be to utilize machining to couple together.
13. a composite high-density heat radiator comprises:
One first fin has one first radiating bottom plate and a plurality of first radiating fins that are disposed on this first radiating bottom plate; And
One second fin has one second radiating bottom plate and a plurality of second radiating fins that are disposed on this second radiating bottom plate, wherein
This first with this second fin each first with should each second radiating fin relative arrangement interlaced with each other, at least the above top of a slice of each first radiating fin of this first fin is connected with second radiating bottom plate of this second fin, and the above top of a slice at least of each second radiating fin of this second fin is connected with first radiating bottom plate of this first fin.
14. composite high-density heat radiator as claimed in claim 13 is characterized in that, this first and this second fin on each first and each second radiating fin between be equidistant.
15. composite high-density heat radiator as claimed in claim 13 is characterized in that, this first with this second fin for squeezing the type fin.
16. a composite high-density heat radiator comprises:
One first, second fin is provided, this first, second fin has one first, 1 second radiating bottom plate and a plurality of radiating fins that are configured on this first, second radiating bottom plate, wherein also have the side that one the 3rd radiating bottom plate is configured in this first radiating bottom plate, make this first with the 3rd radiating bottom plate be roughly a L type;
Also have the one the hot base plate that scatters and be configured in a side of this second radiating bottom plate, make this second be roughly a L type, wherein with this hot base plate that scatters
This first with each radiating fin of this second fin relative arrangement interlaced with each other, and this first is coupled together with the processing of this second fin, wherein first radiating bottom plate of this first fin and the 3rd radiating bottom plate are connected to each other, second of this second fin is connected to each other with this hot base plate that scatters, forming a thermally conductive pathways, and with each first with each second radiating fin around living.
17. composite high-density heat radiator as claimed in claim 16, it is characterized in that, the operative tip of each radiating fin of this first fin is connected with second radiating bottom plate of this second fin, and the operative tip of each radiating fin of this second fin is connected with first radiating bottom plate of this first fin.
18. composite high-density heat radiator as claimed in claim 16 is characterized in that, this first and each radiating fin of this second fin between be equidistant.
19. composite high-density heat radiator as claimed in claim 16 is characterized in that, this first, this is the second, the 3rd identical with this scatter thickness of hot base plate.
20. composite high-density heat radiator as claimed in claim 16 is characterized in that, this first with this second fin for squeezing the type fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348515A CN1142404C (en) | 2000-12-06 | 2000-12-06 | Composite high-density heat radiator and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348515A CN1142404C (en) | 2000-12-06 | 2000-12-06 | Composite high-density heat radiator and its making process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357740A CN1357740A (en) | 2002-07-10 |
| CN1142404C true CN1142404C (en) | 2004-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001348515A Expired - Fee Related CN1142404C (en) | 2000-12-06 | 2000-12-06 | Composite high-density heat radiator and its making process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142404C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829741B (en) * | 2009-03-09 | 2012-01-11 | 技嘉科技股份有限公司 | Method for manufacturing heat-dissipating device |
| TWI564511B (en) * | 2015-10-14 | 2017-01-01 | 國立交通大學 | Heat dissipation fin set |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687423A (en) * | 2012-09-07 | 2014-03-26 | 宏碁股份有限公司 | Electronic device and radiating module thereof |
| CN115226361A (en) * | 2021-04-19 | 2022-10-21 | 中兴通讯股份有限公司 | Thermal bridge and electronic device |
-
2000
- 2000-12-06 CN CNB001348515A patent/CN1142404C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829741B (en) * | 2009-03-09 | 2012-01-11 | 技嘉科技股份有限公司 | Method for manufacturing heat-dissipating device |
| TWI564511B (en) * | 2015-10-14 | 2017-01-01 | 國立交通大學 | Heat dissipation fin set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1357740A (en) | 2002-07-10 |
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