CN101394729B - Heat radiator and manufacturing method thereof - Google Patents
Heat radiator and manufacturing method thereof Download PDFInfo
- Publication number
- CN101394729B CN101394729B CN2007102017613A CN200710201761A CN101394729B CN 101394729 B CN101394729 B CN 101394729B CN 2007102017613 A CN2007102017613 A CN 2007102017613A CN 200710201761 A CN200710201761 A CN 200710201761A CN 101394729 B CN101394729 B CN 101394729B
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- extension
- radiating fin
- groove
- radiator
- base plate
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Abstract
The present invention relates to a radiator and a manufacturing method thereof. The radiator is used for radiating heat generated by an electronic element, and comprises a bottom panel and a plurality of radiating fins in contact with the electronic element. A plurality of grooves are formed on the bottom panel and used for accommodating the radiating fins. Convex ribs are formed on the bottom panel and among the grooves; each groove is provided with two side walls on the adjacent convex ribs; each radiating fin is provided with a mounting part inserted in the groove on the bottom panel and a radiating part connected with the mounting part; the mounting part comprises a first extending part which is folded and a second extending part connected with the first extending part; the first and the second extending parts of each radiating fin have an inclined part which is inclined to the radiating part; and the first and the second extending parts of each radiating fin are tightly leaned against each other in parallel, and tightly contact with the side walls of the grooves. The contact area between the mounting parts of the radiating fins and the bottom panel is larger, thereby increasing the radiating effect of the radiator.
Description
Technical field
The present invention relates to a kind of Radiator and its preparation method, be meant a kind of radiator that is used on the electronic component especially.
Background technology
Along with fast development of information technology, the arithmetic speed of central processing unit (CPU) is more and more faster, and the heat of its generation is also more and more, and too much heat is if can't in time discharge, the stability when having a strong impact on the central processing unit operation.For this reason, industry is installed a radiator at the central processing unit end face usually, utilizes radiator to assist to discharge heat, to guarantee central processing unit operate as normal under suitable temperature.And along with the electronic component volume is more and more littler, its heating is also more concentrated, and the heat dispersion of radiator also needs to promote.
Radiator of the prior art often adopts one to be attached at the pedestal on the central processing unit and to be fixedly welded on radiating fin on the pedestal.Because the heat that the employed welding material of welding can increase between pedestal and the radiating fin passes impedance, and influences the overall performance of radiator.For overcoming this technical problem, also adopt the mode of die forging that radiating fin is inlaid in the groove of substrate in the prior art.Shown in Fig. 7-8, a radiator comprises a pedestal 3 and some radiating fins 4.One surface of this pedestal is provided with some grooves 31 and inserts radiating fin 4 with correspondence.Have two straight sidewalls in each groove 31 with contact radiating fin 4.Be provided with a slit between every adjacent two grooves 31.When radiating fin 4 was inserted in the groove 31 of pedestal 3, the cutter 41 extruding slits of some extrusion dies made the sidewall of groove 31 produce plastic deformation, push to radiating fin 4, make radiating fin 4 closely be embedded in the groove 31.
But, because radiating fin 4 is plane contact with the two side of groove 31, and the size of contact jaw up and down radiating fin 4 and groove 31 is identical, make radiating fin 4 get loose easily and produce the space, reduced the contact area of radiating fin 4 with pedestal 3, reduce the heat conductivility of radiator, influenced the radiating effect of entire radiator.
Summary of the invention
In view of this, be necessary to provide a kind of Radiator and its preparation method of perfect heat-dissipating in fact.
A kind of radiator, be used to distribute the heat that electronic component produces, it comprises a base plate that contacts with this electronic component, some radiating fins, this base plate is provided with some grooves to accommodate described radiating fin, described base plate is provided with the protrusion rib between described groove, each groove has two sidewalls on adjacent protrusion rib, each radiating fin comprises that one is inserted in the installation portion of base plate groove and the radiating part of a connection portion, this installation portion comprises that folding first extension and connects second extension of first extension, first extension of described each radiating fin, second extension has the rake that favours described radiating part, first extension of described each radiating fin, second extension be parallel to each other near, and closely contact with the sidewall of described groove respectively.
A kind of manufacture method of radiator comprises the steps:
(1) purchase a base plate, form some grooves of being separated by side by side and be formed on protrusion rib between the groove on an end face of base plate, each groove has two sidewalls;
(2) purchase some radiating fins, one end of folding each radiating fin is so that radiating fin has an installation portion, other parts of radiating fin are radiating part, this installation portion comprises that one first extension and connects second extension of first extension, crooked first extension and second extension make described first extension and second extension have the rake that favours described radiating part;
(3) installation portion with radiating fin is inserted in the groove of base plate; And
(4) apply extruding force to protruding rib, make that protruding rib produces plastic deformation, so that the sidewall of groove deforms and tightly pushes the installation portion of radiating fin.
Because each radiating fin has first, second extension of folding installation portion and this installation portion, make radiating fin better clip in base plate, and bigger contact area is arranged with base plate, increase the radiating effect of radiator.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the radiator of first embodiment of the invention.
Fig. 2 is the assembly drawing of Fig. 1 radiator.
Fig. 3 is the front view of Fig. 2 radiator.
Fig. 4 is the enlarged drawing of Fig. 3 radiator circle part IV.
Fig. 5 is that Fig. 1 is the front view of the radiator of second embodiment of the invention.
Fig. 6 is the enlarged drawing of Fig. 5 radiator circle part of V I.
Fig. 7 is the preceding front view of radiator die forging of prior art.
Fig. 8 is the assembly drawing after the radiator die forging of prior art.
Embodiment
See also Fig. 1 to Fig. 2, be first embodiment of radiator of the present invention.This radiator comprises a base plate 10 and some radiating fins 20.
See also Fig. 3 to Fig. 4, base plate 10 has a smooth bottom surface (figure is mark not) and an end face (figure not mark) relative with this bottom surface.Base plate 10 is provided with the groove 12 of some same distance of being separated by side by side and forms between groove 12 in lengthwise on the end face and protrudes rib 15.Each groove 12 has two sidewalls (figure is mark not) on adjacent protrusion rib 15.Each cross section that protrudes rib 15 is the dentation setting, and the end face center of protruding rib 15 is provided with an indenture 18.Each groove 12 comprises that one connects vertical section and a tilting section away from base plate 10 end faces of base plate 10 end faces.Vertically section is vertical with the bottom surface of base plate 10, and tilting section is with vertically section is angled.A protuberance 19 is extended to the vertical section of one side trench 12 in the top of each protrusion rib 15.
Each radiating fin 20 comprise one at one end folding installation portion 21 and the radiating part 28 of connection portion 21.Each installation portion 21 comprises that first extension 22 of a bending is connected second extension 24 of first extension 22 with one.Second extension 24 is crooked parallel and be close proximity to first extension 22.Each first extension 22 has a vertical portion 225 that connects described radiating part 28, and one connects vertical portion 225 and away from the rake 226 of radiating part 28, wherein rake 226 is an obtuse angle mutually with vertical portion 225.Each second extension 24 has a rake 246 and a vertical portion 245, and this rake 246 connects rake 226 ends of first extension 22.The rake 246 of second extension 24, vertical portion 245 parallel with the rake 226 of first extension 22, vertical portion 225 respectively near.The vertical portion 245 of each second extension 24 has a free end 247.
During installation, the installation portion 21 of these radiating fins 20 is inserted in the groove 12 of base plate 10, wherein vertical portion 225,245 correspondences of installation portion 21 are placed in vertical section of groove 12, and rake 226,246 correspondences are placed in the tilting section of groove 12.First, second extension 22,24 of the installation portion 21 of these radiating fins 20 abuts against on the sidewall of groove 12.The free end 247 of second extension 24 and the protuberance 19 mutual clips of the protrusion rib 15 of base plate 10.As shown in Figure 4, be squeezed in the cutter of some extrusion dies (figure does not show) on the indenture 18 that protrudes rib 15 after, make that protruding rib 15 produces plastic deformations, so that the sidewall of groove 12 deforms and tightly pushes the installation portion 21 of radiating fin 20.Therefore, radiating fin 20 closely contacts and is fixed in the groove 12 with protruding rib 15, and entire radiator completes.
Because the installation portion 21 of each radiating fin 20 has first, second folding extension 22,24, the sidewall with groove 12 contacts respectively, has increased the contact area of radiating fin 20 with base 10, improves the heat-conducting effect of radiator.Because the free end 247 of second extension 24 of each radiating fin 20 and the protuberance 19 mutual clips of the protrusion rib 15 of base plate 10 are so radiating fin 20 can be installed on the base 10 more firmly.In addition, protrude the indenture 18 on the rib 15, cutter is squeezed in more accurately protrudes on the rib 15.
The invention provides a kind of manufacture method of radiator, key step comprises:
(1) purchases a base plate 10, on an end face of base plate 10, form the groove 12 of some same distance of being separated by side by side and the protrusion rib 15 between groove 12, wherein form groove 12 and protrude rib 15 in the method that can take aluminium extruded type to base plate 10, each end face center of protruding rib 15 is provided with an indenture 18;
(2) purchase some radiating fins 20, one end of folding each radiating fin 20 is so that radiating fin 20 has an installation portion 21, other parts of radiating fin are radiating part 28, wherein each installation portion 21 comprises that first extension 22 of a bending is connected second extension 24 of first extension 22 with one, and second extension 24 is crooked parallel and be close proximity to first extension 22; Crooked first, second extension 22,24, so that first extension 22 has the rake 226 of a vertical portion 225 near radiating part 28, connection vertical portion 22, make second extension 24 have the rake 246 of rake 226 ends that connect first extension 22 and the vertical portion 245 that connects rake 246;
(3) installation portion 21 with radiating fin 20 is inserted in the groove 12 of base plate 10, and wherein radiating fin 20 is that the bearing of trend along groove 12 inserts from the side of base plate 10; And
(4) apply extruding force to the indenture 28 that protrudes rib 15, make that protruding rib 15 produces plastic deformations, so that the sidewall of groove 12 deforms and tightly pushes the installation portion 21 of radiating fin 20.
Shown in Fig. 5-6, be second embodiment of radiator of the present invention.In the present embodiment, radiator comprises a base plate 10a and some radiating fin 20a.The structural similarity of the radiating fin 20 among each the radiating fin 20a and first embodiment comprises that a folding installation portion 21a is connected the radiating part 28a of this installation portion 21a with one.Each installation portion 21a comprises that the first extension 22a of a bending is connected the second extension 24a of the first extension 22a with one.The second extension 24a is crooked parallel and be close proximity to the first extension 22a.The common bending of first, second extension 22a, 24a is wavy to form.In other words, first, second extension 22a, 24a have three rakes (figure mark) and form certain angle with radiating part 28a respectively and tilt.
The structural similarity of the base plate 10 among the base plate 10a and first embodiment.This base plate 10a has a bottom surface and an end face relative with the bottom surface.Base plate 10a be provided with on its end face some lengthwises side by side, the groove 12a of the same distance of being separated by and between groove 12a, form and protrude rib 15a.Each groove 12 has two sidewalls (figure is mark not) on adjacent protrusion rib 15a.The bending of the sidewall undulate of groove 12a is so that groove 12a correspondence is accommodated the installation portion 21a of radiating fin 20a.
The manufacture method of the radiator of present embodiment is similar to the manufacturing method of heat radiator among first embodiment, different places is in second step of present embodiment manufacture method, and first, second extension 22a, the 24a of the installation portion 21a of radiating fin 20a bent to three rakes so that installation portion 21a is wavy.
In the present embodiment, the installation portion 21 of radiating fin 20 has corrugated bend and is installed in the groove 12 of base plate 20 with correspondence.Therefore radiating fin 20 can combine with base plate 10 firmly, and and base plate 10 between have bigger contact area to improve the heat-conducting effect of radiator.
Claims (10)
1. radiator, be used to distribute the heat that electronic component produces, it comprises a base plate that contacts with this electronic component, some radiating fins, this base plate is provided with some grooves to accommodate described radiating fin, described base plate is provided with the protrusion rib between described groove, each groove has two sidewalls on adjacent protrusion rib, each radiating fin comprises that one is inserted in the installation portion of base plate groove and the radiating part of a connection portion, it is characterized in that: described installation portion comprises that folding first extension and connects second extension of first extension, first extension of described each radiating fin, second extension has the rake that favours described radiating part, first extension of described each radiating fin, second extension be parallel to each other near, and closely contact with the sidewall of described groove respectively.
2. radiator as claimed in claim 1 is characterized in that: described second extension has a free end, the mutual clip of protrusion rib of this free end and base plate.
3. radiator as claimed in claim 1 is characterized in that: the common bending of described first, second extension is wavy to form.
4. radiator as claimed in claim 1 is characterized in that: the shape of described each groove is corresponding with the installation portion shape of radiating fin.
5. radiator as claimed in claim 1 is characterized in that: the end face center of described protrusion rib is provided with an indenture.
6. the manufacture method of a radiator comprises the steps:
(1) purchase a base plate, form some grooves of being separated by side by side and be formed on protrusion rib between the groove on an end face of base plate, each groove has two sidewalls;
(2) purchase some radiating fins, one end of folding each radiating fin is so that radiating fin has an installation portion, other parts of radiating fin are radiating part, this installation portion comprises that one first extension and connects second extension of first extension, crooked first extension and second extension make described first extension and second extension have the rake that favours described radiating part;
(3) installation portion with radiating fin is inserted in the groove of base plate; And
(4) apply extruding force to protruding rib, make that protruding rib produces plastic deformation, so that the sidewall of groove deforms and tightly pushes the installation portion of radiating fin.
7. manufacturing method of heat radiator as claimed in claim 6 is characterized in that: described base plate is formed by the method for aluminium extruded.
8. manufacturing method of heat radiator as claimed in claim 6 is characterized in that: described first extension and second extension be parallel to each other near.
9. manufacturing method of heat radiator as claimed in claim 6 is characterized in that: described step (two) comprises that also first, second extension that bends each installation portion simultaneously is so that it has waveform.
10. manufacturing method of heat radiator as claimed in claim 6 is characterized in that: the bearing of trend along groove inserts radiating fin described in the described step (three) from a side of base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102017613A CN101394729B (en) | 2007-09-19 | 2007-09-19 | Heat radiator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102017613A CN101394729B (en) | 2007-09-19 | 2007-09-19 | Heat radiator and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101394729A CN101394729A (en) | 2009-03-25 |
| CN101394729B true CN101394729B (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007102017613A Expired - Fee Related CN101394729B (en) | 2007-09-19 | 2007-09-19 | Heat radiator and manufacturing method thereof |
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| CN (1) | CN101394729B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551211B (en) * | 2009-04-23 | 2011-04-27 | 黄崇贤 | Radiator |
| TW201135178A (en) * | 2010-04-15 | 2011-10-16 | chong-xian Huang | Heat dissipation device |
| TWI468636B (en) * | 2011-11-09 | 2015-01-11 | Cooler Master Dev Corp | Heat dissipating fin, heat dissipating device and method of manufacturing the same |
| TWI473962B (en) * | 2012-08-01 | 2015-02-21 | Asia Vital Components Co Ltd | Manufacturing method of heat sink |
| CN107152414B (en) * | 2016-03-02 | 2021-08-20 | 奇鋐科技股份有限公司 | Improved structure of fan blade |
| CN105910487A (en) * | 2016-04-13 | 2016-08-31 | 张家港市金邦铝业股份有限公司 | Insertion-type aluminum radiator |
| EP3624184A1 (en) * | 2018-09-12 | 2020-03-18 | Siemens Aktiengesellschaft | Power module unit, method for producing a power module unit, power supply and frequency converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655344A (en) * | 2004-02-12 | 2005-08-17 | 鸿富锦精密工业（深圳）有限公司 | Heating radiator and method for making same |
| CN2857218Y (en) * | 2005-07-05 | 2007-01-10 | 美商旭扬热传股份有限公司 | Radiator having thin fins |
-
2007
- 2007-09-19 CN CN2007102017613A patent/CN101394729B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655344A (en) * | 2004-02-12 | 2005-08-17 | 鸿富锦精密工业（深圳）有限公司 | Heating radiator and method for making same |
| CN2857218Y (en) * | 2005-07-05 | 2007-01-10 | 美商旭扬热传股份有限公司 | Radiator having thin fins |
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| Publication number | Publication date |
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| CN101394729A (en) | 2009-03-25 |
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Granted publication date: 20111214 Termination date: 20130919 |