CN101644947A - Radiating device and manufacturing method thereof - Google Patents
Radiating device and manufacturing method thereof Download PDFInfo
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- CN101644947A CN101644947A CN200810146010A CN200810146010A CN101644947A CN 101644947 A CN101644947 A CN 101644947A CN 200810146010 A CN200810146010 A CN 200810146010A CN 200810146010 A CN200810146010 A CN 200810146010A CN 101644947 A CN101644947 A CN 101644947A
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Abstract
The invention relates to a radiating device and a manufacturing method thereof. The radiating device comprises a base and a fin. The base comprises a main body and a guide rail; the guide rail is positioned on the main body; the fin comprises a notch and a clamped part, and the size of the notch is greater than that of the cross section of the guide rail; and the guide rail passes through the notch, and is extruded and deformed so as to fix the clamped part on the main body of the base. The manufacturing method comprises the following steps: manufacturing the base which comprises the main bodyand the guide rail; manufacturing the fin which comprises the notch and the clamped part; making the guide rail on the base pass through the notch of the fin to loosely match the notch with the guiderail; and extruding and deforming the guide rail to fix the clamped part on the main body of the base. The manufacturing method can manufacture radiating devices quickly in large quantity, saves production cost and reduces assembly complexity.
Description
Technical field
The present invention relates to a kind of heat abstractor, and be particularly related to a kind of heat abstractor and manufacture method thereof of engagement type.
Background technology
In the solution of the heat dissipation problem of computer hardware now, the most general is exactly that heat radiator adds active fan.The heat dissipation technology R﹠D direction concentrates on structural improvement, material improvement and the technologic improvement of heat radiator mostly.For be exactly can be under limited cost, reach maximum radiating effect.Early stage heat radiator is the aluminium extruded type heat radiator mostly.Aluminium material is because soft easily machining characteristics itself is applied in heat radiator very early, the cost of aluminium extruded type heat radiator is low, the technology door requires also not high, but has certain limitation, so in limited space, be difficult to improve area of dissipation owing to be subjected to the thickness and the length ratio of the restriction radiating fin of material own.
Because traditional aluminium extruded type heat radiator can't be broken through the ratio restriction of fin thickness and length, then develops the mating type heat radiator.This heat radiator is to make fin with aluminium or copper coin earlier, utilizes heat-conducting cream or scolding tin that it is combined on the heat dissipation base with groove afterwards.The characteristics of mating type heat radiator are that fin is broken through original ratio restriction, good heat dissipation effect, but also can select for use different materials to do fin.Wherein, used a special reflow stove in the welding method, scolder can be contacted fully with soldered metal, thereby avoided leaking the empty weldering of weldering, guaranteed that being connected of fin and base is tight as far as possible, to reduce the interface thermal resistance, can control the thawing time and the melt temperature of each solder joint again, guarantee the even of all solder joints.But, special reflow stove cost is quite expensive, and needing to use for a long time could cost recovery.And,, how to reduce or improve the welding technology problem that necessitates for meeting present environmental protection trend.
Therefore, the mating type heat radiator also develops with the combination of gear shaping mode except by the welding manner combination.In simple terms, the gear shaping mode is to utilize great pressure, and aluminium flake is combined in the copper pedestal.In other words, by the wringing fit mode fin and base are combined.As shown in Figure 1, the guide rail 102 of base 10 is filled in by compulsion the breach 120 of (wringing fit) fin 12.Because the size of breach 120 is less than the size of guide rail 102, in other words, the width D 1 of breach 120 is less than the width D 2 of guide rail 102, so foreign compulsion ground is when filling in breach 120 with guide rail 102, and acting force between the two will make expansion of breach 120 parts or the compression of guide rail 102 parts.Thus, guide rail 102 just can be close to breach 120, and then reaches the purpose of joint base 10 and fin 12.
Yet, because causing between breach 120 and the guide rail 102, above-mentioned wringing fit mode can produce very big friction force, therefore can't once a plurality of fins 12 be tightly fitted in base 10.Therefore, blocks of assembling process is quite consuming time, does not meet economic benefit.In the wringing fit process, breach 120 scrapes guide rail 102 a plurality of scratches easily or causes breakage with the friction and the acting force of guide rail 102, influences the smoothness of guide rail 102, and then influences radiating efficiency in addition.
Therefore, the invention provides a kind of heat abstractor of can be fast and making easily, to address the above problem.
Summary of the invention
One object of the present invention is to provide a kind of heat abstractor, and fin combines in the mode of loose fit earlier with base, imposes extruding force again and causes fin closely to engage with base.
According to a specific embodiment, heat abstractor of the present invention comprises a base and a fin.This base comprises a main body and a guide rail, and this guide rail is positioned at this main body.This fin comprises a breach and by sandwich part, and this breach and this guide rail are loose fit.This guide rail passes this breach and is extruded distortion, to fix this by sandwich part this main body in this base.
In this embodiment, this xsect of this guide rail is the T font.The both sides crimp at one top of this guide rail is to fix this by sandwich part this main body in this base.The material of this base or this fin is aluminium or copper.This guide rail of this base is an extrusion forming.This breach of this fin and this are impact briquetting by sandwich part.
In addition, this guide rail extends along one first bearing of trend, and towards this first bearing of trend warpage, this first bearing of trend is parallel to the plane, a top of this guide rail by sandwich part for this.
This fin comprises a radiating part, and this radiating part is connected by sandwich part with this, and this radiating part extends along one second bearing of trend.This second bearing of trend is perpendicular to this first bearing of trend.
Another object of the present invention is to provide a kind of method of making heat abstractor, and fin combines in the mode of loose fit earlier with base, imposes extruding force again and causes fin closely to engage with base.
One specific embodiment according to the present invention, the method for manufacturing heat abstractor of the present invention comprises the following step.
Make a base, this base comprises a main body and a guide rail.
Make a fin, this fin comprises a breach and by sandwich part.
Then, this guide rail of this base is passed this breach of this fin, make this breach and this guide rail loose fit.
At last, this guide rail of crimp is to fix this by sandwich part this main body in this base.
In sum, the present invention is the mode of crimp that adds by the combination of assembly loose fit, and can easyly make heat abstractor apace.Because the notch size of fin is greater than the cross sectional dimensions of guide rail, so radiating fin need not be blocks ofly chimeric with base, but a plurality of radiating fins can be combined slidably with the guide rail of base together.Last again by the guide rail of tool extruding base, cause the guide rail distortion and with the main body of base firmly the clamping fin by sandwich part, to strengthen the adhesion of fin and base.Thus, manufacture method of the present invention is easy, therefore can be in a large number and make heat abstractor apace, and then save production cost and reduce the assembling complexity, meet the environmental protection trend that reduces welding technology simultaneously.
Can be further understood by following detailed description of the Invention and accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the exploded view according to the heat abstractor of prior art.
Fig. 2 is a process flow diagram of making the method for making of heat abstractor of the present invention.
Fig. 3 is the exploded view of heat abstractor of the present invention.
Fig. 4 is another visual angle figure of the fin among Fig. 3.
Fig. 5 is the synoptic diagram of fin among Fig. 3 and base loose fit combination.
Fig. 6 A is that the tool that is not subjected to by sandwich part of the fin among Fig. 5 pushes preceding sectional view.
Fig. 6 B be among Fig. 5 fin be subjected to sectional view after the tool extruding by sandwich part.
Embodiment
Please refer to Fig. 2, Fig. 2 is a process flow diagram of making the method for making of heat abstractor of the present invention.Make flow process in order to know more to describe, in addition please in the step explanation, with reference to Fig. 3 to Fig. 6 B.
At first, execution in step S30 makes a base 30, and base 30 comprises a main body 300 and a guide rail 302, as shown in Figure 3.Fig. 3 is the exploded view of heat abstractor 3 of the present invention.Guide rail 302 is except being fixed in by sealed mode the main body 300, and modal production method is the method by extrusion forming, and main body 300 and guide rail 302 are together made moulding.For example, by the powerful thrust of tool, softening aluminium material is clamp-oned in the mould with an opening, this opening has a given shape (as the shape of cross section of the base among Fig. 3 30).Then, softening aluminium material is subjected to the extruding of tool and the limitation of mould, and the aluminium material can only press to this opening, thereby can extrude strip and be coincident with the base 30 of the given shape of this opening.This opening is outer prepares to have a chilled water, and the base of extruding 30 can be immediately by this water quench, and then hardened forming base 30 as shown in Figure 3.
Be noted that Fig. 3 illustrates two guide rails 302 and is positioned on the main body 300.In fact, the number of guide rail 302 of the present invention is not limited to this, and base 30 can have single or multiple guide rail 302.The number of guide rail 302 is to change on demand.For example, the number that increases guide rail 302 can allow fin 32 more stably be connected with base 30, and the number that reduces guide rail 302 can reduce the smooth degree that expends and increase fin and base combination of making raw material.
Then, execution in step S32 makes a fin 32, and fin 32 comprises breach 320, by sandwich part 322 and radiating part 324, as shown in Figure 4.Fig. 4 is another visual angle figure of the fin 32 among Fig. 3.Fin 32 can be by stamping forming mode, to form by sandwich part 322 and breach 320.For example, prepare an aluminium flake earlier, then punch out a T font hole in aluminium flake.Then, one of them clamps an aluminium flake part (punched part) by two tools, and remainder is unsettled.Then, press down the unsettled part of aluminium flake, cause the T font hole bending of aluminium flake, as the bending part among Fig. 4 by another tool.Therefore, the part of the T font hole of bending forms the breach 320 among Fig. 4, the aluminium flake at another part place form among Fig. 4 by sandwich part 322.
Then, execution in step S34 passes the breach 320 of fin 32 with the guide rail 302 of base 30, as Fig. 3 and shown in Figure 5.Fig. 5 is the synoptic diagram of fin 32 and base 30 loose fits combination among Fig. 3.Being connected with radiating part 324 of fin 32 by sandwich part 322, and by first bearing of trend E1 (as shown in Figure 3) warpage of sandwich part 322 along guide rail 302.As shown in Figure 5, the plane, top 3024 that is parallel to guide rail 302 by the first bearing of trend E1 of sandwich part.Radiating part 324 extends along the second bearing of trend E2, and the second bearing of trend E2 is perpendicular to the plane, top 3024 and the first bearing of trend E1 of guide rail 302.
As Fig. 3, Fig. 4 and shown in Figure 5, because the size of breach 320 is greater than the size of an xsect of the guide rail 302 of base 30, when therefore fin 32 was with base 30 combinations, the breach 320 of fin 32 can't closely contact with the guide rail 302 of base 30, and promptly breach 320 is loose fit with guide rail 302.In detail, the xsect of guide rail 302 is the T font, and the breach 320 of fin 32 is rectangular.As Fig. 4 and shown in Figure 5, the width D 3 of breach 320 is greater than the width D 5 at the top 3020 of guide rail 302, thereby guide rail 302 can pass the breach 320 of fin 32 and closely do not contact with breach 320.
Because sliding over each other between fin 32 and the base 30 there is no too many contact, cause when making up and can not produce too big friction force.When therefore fin 32 is with base 30 combinations, does not need a slice to connect a slice ground assembling fin 32 on base, and a plurality of fins 32 can be combined on the base 30 together.
In addition, as Fig. 4 and shown in Figure 5, fin 32 by the width D 5 of the width D 4 of sandwich part 322 formed grooves, but greater than the width D 6 of the waist 3022 of guide rail 302 less than the top 3020 of guide rail 302.Therefore after guide rail 302 combinations of fin 32 and base 30, fin 32 limits to along the top 3020 that will be subjected to guide rail 302 of moving of the second bearing of trend E2.In other words, when fin 32 and base 30 loose fits, fin 32 can 30 disengagings along the second bearing of trend E2 from base.
At last, execution in step S36 is with guide rail 302 crimps of base 30, to fix by sandwich part 322.That is, the main body 300 of base 30 and the distortion guide rail 302 clamping fins 32 by sandwich part 322, shown in Fig. 6 A and Fig. 6 B.Fig. 6 A is that the tool 4 that is not subjected to by sandwich part 322 of fin 32 pushes preceding sectional view.Fig. 6 B be fin 32 be subjected to sectional view after tool 4 extruding by sandwich part 322.Fig. 6 A and Fig. 6 B are along shown in the profile P among Fig. 51.After fin 32 and base 30 combinations, as shown in Figure 5, the top 3020 of guide rail 302 be positioned at fin 32 by on the sandwich part 322.Shown in Fig. 6 A and Fig. 6 B, tool 4 pushes guide rail 302 down, causes guide rail 302 distortion.Because the xsect of guide rail 302 is the T font, so top 3020 extends toward both sides, 3020 both sides, top be suspended on fin 32 by on the sandwich part 322, anchorage force longitudinally not.Therefore, when tool 4 pushed 3020 both sides, top of guide rails 302, shown in Fig. 6 B, the decurvation distortion can be forced in 3020 both sides, top of guide rail 302, and then with the main body 300 of base 30 up and down clamping fin 32 by sandwich part 322, reach the effect of firm fin 32.
The present invention is by above-mentioned manufacturing process, can be fast and make heat abstractor easily.Comprehensive, heat abstractor 3 of the present invention comprises base 30 and fin 32.Base 30 comprises main body 300 and guide rail 302, and guide rail 302 is positioned on the main body 300.Fin 32 comprises breach 320 and by sandwich part 322, the size of breach 320 is greater than the size of the xsect of guide rail 302, and guide rail 302 passes the breach 320 of fin 32.Wherein, the guide rail 302 of base 30 is extruded distortion, cause fin 32 by sandwich part 322 by the main body 300 of base 30 and the distortion guide rail 302 clampings.
In addition, according to various objectives and demand, the material of base 30 can be aluminium or copper, and certainly, the material of fin 32 also can be aluminium or copper.Generally speaking, most often base 30 and fin 32 are all made with aluminium material at present.Perhaps, base 30 is made with copper material, and fin 32 is made with aluminium material.
With respect to prior art, the present invention adds the mode of crimp by the combination of assembly loose fit, and can easyly make heat abstractor apace.Because the notch size of fin is greater than the cross sectional dimensions of guide rail, so radiating fin need not be blocks ofly chimeric with base, but a plurality of radiating fins can be combined slidably with the guide rail of base together.Last again by the guide rail of tool extruding base, cause the guide rail distortion and with the main body of base firmly the clamping fin by sandwich part, to strengthen the adhesion of fin and base.Thus, manufacture method of the present invention is easy, therefore can be in a large number and make heat abstractor apace, and then save production cost and reduce the assembling complexity.
By the detailed description of above preferred embodiment, feature of the present invention and spirit can be more clearly described in hope, and are not to come protection scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is that hope can contain being arranged in the scope of patent protection of the presently claimed invention of various changes and tool identity property.Therefore, the scope of appended claims of the present invention should be done the broadest explanation according to above-mentioned explanation, so that it contains the arrangement of all possible change and tool identity property.
Claims (16)
1, a kind of heat abstractor is characterized in that, comprises:
Base comprises main body and guide rail, and above-mentioned guide rail is positioned at aforementioned body; And
Fin comprises breach and by sandwich part, above-mentioned breach and above-mentioned guide rail are loose fit, and above-mentioned guide rail is extruded distortion, with fixing above-mentioned by the aforementioned body of sandwich part in above-mentioned base.
2, heat abstractor according to claim 1 is characterized in that, the above-mentioned xsect of above-mentioned guide rail is T font or rectangle.
3, heat abstractor according to claim 2 is characterized in that, the above-mentioned xsect of above-mentioned guide rail is the T font, and the both sides at the top of above-mentioned guide rail are extruded distortion, with fixing above-mentioned by the aforementioned body of sandwich part in above-mentioned base.
4, heat abstractor according to claim 1 is characterized in that, the material of above-mentioned guide rail is aluminium or copper.
5, heat abstractor according to claim 1 is characterized in that, the material of above-mentioned fin is aluminium or copper.
6, heat abstractor according to claim 1 is characterized in that, the above-mentioned guide rail of above-mentioned base is an extrusion forming.
7, heat abstractor according to claim 1 is characterized in that, the above-mentioned breach of above-mentioned fin and above-mentioned be impact briquetting by sandwich part.
8, heat abstractor according to claim 1 is characterized in that, above-mentioned guide rail extends along stretching direction along first, above-mentioned by sandwich part towards the above-mentioned first bearing of trend warpage, above-mentioned first along stretching the plane, top that direction is parallel to above-mentioned guide rail.
9, heat abstractor according to claim 8, it is characterized in that above-mentioned fin comprises radiating part, above-mentioned radiating part is connected by sandwich part with above-mentioned, above-mentioned radiating part extends along second bearing of trend, and above-mentioned second bearing of trend is perpendicular to above-mentioned first bearing of trend.
10, a kind of method of making heat abstractor is characterized in that, comprises the following step:
Make base, above-mentioned base comprises main body and guide rail;
Make fin, above-mentioned fin comprises breach and by sandwich part;
The above-mentioned guide rail of above-mentioned base is passed the above-mentioned breach of above-mentioned fin, make above-mentioned breach and above-mentioned guide rail loose fit; And
The above-mentioned guide rail of crimp is with fixing above-mentioned by the aforementioned body of sandwich part in above-mentioned base.
11, method according to claim 10 is characterized in that, the above-mentioned xsect of above-mentioned guide rail is the T font, and the both sides at the top of the above-mentioned guide rail of crimp are with fixing above-mentioned by the aforementioned body of sandwich part in above-mentioned base.
12, method according to claim 10 is characterized in that, above-mentioned base is made by the extrusion forming mode.
13, method according to claim 10 is characterized in that, above-mentioned fin is made by the impact briquetting mode.
14, method according to claim 10, it is characterized in that when above-mentioned guide rail passed the above-mentioned breach of above-mentioned fin, above-mentioned guide rail extended along stretching direction along first, above-mentioned by sandwich part towards the above-mentioned first bearing of trend warpage, above-mentioned first bearing of trend is parallel to the plane, top of above-mentioned guide rail.
15, method according to claim 14 is characterized in that, above-mentioned fin comprises radiating part, and above-mentioned radiating part is connected by sandwich part with above-mentioned, and above-mentioned radiating part extends along second bearing of trend, and above-mentioned second bearing of trend is perpendicular to above-mentioned first bearing of trend.
16, method according to claim 10 is characterized in that, in the step of the above-mentioned guide rail of the above-mentioned base of crimp, above-mentioned guide rail is extruded distortion by the tool impact style.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810146010A CN101644947A (en) | 2008-08-06 | 2008-08-06 | Radiating device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810146010A CN101644947A (en) | 2008-08-06 | 2008-08-06 | Radiating device and manufacturing method thereof |
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| CN101644947A true CN101644947A (en) | 2010-02-10 |
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| CN200810146010A Pending CN101644947A (en) | 2008-08-06 | 2008-08-06 | Radiating device and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316702A (en) * | 2010-07-02 | 2012-01-11 | 陈世明 | Heat radiator and manufacture method thereof |
| CN102348361A (en) * | 2010-08-06 | 2012-02-08 | 陈世明 | Heat radiator and manufacturing method thereof |
| CN103578572A (en) * | 2012-08-01 | 2014-02-12 | 奇鋐科技股份有限公司 | Structure of heat sink and manufacturing method thereof |
| CN103987236A (en) * | 2014-05-20 | 2014-08-13 | 深圳市华盛源机电有限公司 | Air-cooling radiator and manufacturing method thereof |
| CN105792610A (en) * | 2016-04-19 | 2016-07-20 | 上海浪超电子电器有限公司太仓分公司 | Plug-in type efficient heat conduction and heat radiation device |
| CN108954265A (en) * | 2018-09-26 | 2018-12-07 | 中山市领群光电科技有限公司 | A kind of LED lamp panel and the connection structure of radiator and preparation method thereof |
-
2008
- 2008-08-06 CN CN200810146010A patent/CN101644947A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316702A (en) * | 2010-07-02 | 2012-01-11 | 陈世明 | Heat radiator and manufacture method thereof |
| CN102348361A (en) * | 2010-08-06 | 2012-02-08 | 陈世明 | Heat radiator and manufacturing method thereof |
| CN103578572A (en) * | 2012-08-01 | 2014-02-12 | 奇鋐科技股份有限公司 | Structure of heat sink and manufacturing method thereof |
| CN103987236A (en) * | 2014-05-20 | 2014-08-13 | 深圳市华盛源机电有限公司 | Air-cooling radiator and manufacturing method thereof |
| CN105792610A (en) * | 2016-04-19 | 2016-07-20 | 上海浪超电子电器有限公司太仓分公司 | Plug-in type efficient heat conduction and heat radiation device |
| CN105792610B (en) * | 2016-04-19 | 2019-08-16 | 上海浪超电子电器有限公司太仓分公司 | A kind of instant-plugging high-efficiency heat conduction radiator |
| CN108954265A (en) * | 2018-09-26 | 2018-12-07 | 中山市领群光电科技有限公司 | A kind of LED lamp panel and the connection structure of radiator and preparation method thereof |
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Open date: 20100210 |