CN2624400Y

CN2624400Y - Inclined riveted construction of radiating fin and baseboard

Info

Publication number: CN2624400Y
Application number: CN 03204587
Authority: CN
Inventors: 陈世明
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-24
Filing date: 2003-02-24
Publication date: 2004-07-07
Anticipated expiration: 2013-02-24

Abstract

The utility model relates to an inclined riveted structure of radiation fins and a bottom board, particularly a radiator which is applied to an integrated circuit, and the optimal positioning and heat conducting efficiency can be provided by inclined splicing and riveting. A plurality of inclined grooves are equidistantly arranged on the surface of the bottom board, and an end surface is arranged between the two adjacent grooves. The radiation fins are provided with inclined extending parts on bottom ends, and the inclined extending parts can be correspondingly inserted into the grooves of the bottom board. After the radiation fins are respectively and correspondingly inserted into the grooves of the bottom board, a forming die of which the bottom surface is provided with a plurality of grinding teeth radically stamps each end surface of the bottom board, the end surfaces are stressed to downwards extrude, and the extending parts of the radiation fins are tightly solidified in the grooves and can not be shed; meanwhile, the top margins of the end surfaces are stressed simultaneously to generate outwards expanded deformation towards two sides, and the radiation fins and the bottom board are riveted and fixed into integration.

Description

The inclined riveted construction of fin and base plate

Technical field

The utility model is relevant for the inclined riveted construction of a kind of fin and base plate, be meant a kind of composition structural improvement that is applied to the radiator of integrated circuit especially, it mainly is that base plate and fin are oblique grafting, and the technology of utilizing inserting and riveting, make the rivet clasp one of fin and base plate, and then reach best located and heat conduction efficiency.

Background technology

Progress along with integrated circuit (IC) design and wafer technique, make the integrated circuit volume-diminished, more transistor and etching line more closely, also make its arithmetic speed multiplication, the thermal source of its relative generation is very concentrated, and the speed of temperature rise is fast especially again, in order to satisfy the radiating requirements of integrated circuit, each producer exerts one's heart and strength to the utmost invariably, in the hope of providing a kind of the having concurrently can simple and easy rapid shaping and the best heat dissipation of tool, shown in Figure 1A and Figure 1B, be a kind of combination signal and broken section enlarged drawing of cooling integrated device commonly used wherein, mainly be provided with some grooves 11 in the surface of substrate 1, and has end wall 12 in 11 one of groove, the both sides, bottom of this radiating fin 2 have an extension 21 respectively, make this radiating fin 2 correspondingly insert in the groove 11 (as Figure 1A), and by mould (20) radial punch both sides end wall 12, end wall 12 tops are produced extend out deformation, pressing from both sides sincere extension 21, and then with radiating fin 2 and substrate 1 build-in (as Figure 1B), to form a cooling integrated device; But, though claim and to use with regard to said structure, but in fact the time for end wall 12 punching presses, only there is the top of end wall 12 to produce deformation, it is to fit mutually in groove 11 inside with radiating fin 2, still there is small bonding gap therebetween, aforementioned radiator is stacked at integrated circuit top to be provided when using, the heat energy of this integrated circuit can be conveyed to substrate 1 very soon, but between substrate 1 and the radiating fin 2, except that on end wall 12 tops with radiating fin 2 contacts, the minim gap that this groove 11 and radiating fin 2 have, make the heat energy of substrate 1 can't conduct to each radiating fin 2 fast, therefore cause the not good problem of radiating efficiency; Moreover the effect of its tight knot also has deficiency slightly; See also shown in Figure 2 again, shaping schematic view for another common heat sink, wherein in Fig. 2 A, can find out, this substrate 3 is to offer some recessed structures 31, this radiating fin 4 is located in the chase 31 between being, make the chase 31 of punching pin 41 radial punch radiating fins 4 both sides of this mould, make the limit wall deformation of this chase 31 and press from both sides sincere radiating fin 4, to finish the assembling of this radiator; But, aforesaid punching press pattern, be that the punching pin 41 of mould is adopted more deep mode punching press chase 31, but because these punching pin 41 front ends must be held back and be set as a narrow end, just can make things convenient for it to detach, so its stamping forming radiator, junction, bottom at chase 31 and radiating fin 4, because the power deficiency of pressurized, gap is slightly still arranged, and this gap slightly is to cause the heat energy of substrate 3 can't conduct to the main cause of radiating fin 4 fast, the contact area of this radiating fin 4 and chase 31 is less in addition, also walks to cause the unclear reason of its radiating efficiency.

The utility model content

Main purpose of the present utility model, the inclined riveted construction of a kind of fin and base plate is provided, wherein this backplate surface is provided with some oblique grooves, this fin, be to have an oblique extension in its bottom, make this heating panel just can correspondingly insert in the groove of base plate, when by the mould punching press, not only make the end face deformation between groove, this end face is further extrusion downwards simultaneously, and the tight rivet clasp of the extension of fin in groove, integrally combines groove and fin and has no the gap, the conductive performance of tool the best and reach the effect of preferable riveted location.

Secondary objective of the present utility model, the inclined riveted construction of a kind of fin and base plate is provided, wherein the extension of the groove of this base plate and fin is adopted oblique rivet clasp one, because its tool is than the heat transfer area of dust head's maximum, make the heat energy of base plate directly to be conveyed to fast on each fin, can significantly promote its radiating efficiency.

For achieving the above object, the utility model provides the inclined riveted construction of a kind of fin and base plate, comprises by base plate and some fin structure groups forming, it is characterized in that, this base plate is equidistantly to be provided with some oblique grooves in its surface, and is provided with end face between adjacent grooves; This fin is to have an oblique extension in its bottom, and just can correspondingly insert the interior ccontaining location of groove of base plate; By the said structure feature, can with fin respectively the groove of corresponding base plate plug finish after, each end face that has this base plate of mould radial punch of a plurality of grinding tooths by a bottom surface, make the stressed downward extrusion of this end face, and the extension of fin closely is consolidated in the groove, has no the gap and it is integrally combined, the apical margin of this end face is the while pressurized simultaneously, and produce to both sides and to extend out deformation, make the fin that is positioned in the bottom plate groove must be by the rivet clasp one.

This base plate and fin can adopt copper or aluminium moulding.

Description of drawings

Figure 1A is the combination schematic diagram and the schematic partial sectional view of cooling integrated device commonly used.

Figure 1B is that the broken section enlarged drawing is finished in the combination of cooling integrated device commonly used.

Fig. 2 is the shaping schematic view of another cooling integrated device commonly used.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is corresponding schematic diagram and the schematic partial sectional view of pegging graft of fin of the present utility model and base plate.

Fig. 5 is the action schematic diagram that makes stressed extrusion of end face and generation deformation of press under the mould of the present utility model.

Fig. 6 is that riveting group of the present utility model is finished stereogram and schematic partial sectional view.

1, substrate 11, groove

12, end wall 2, radiating fin

21, extension 211, first class's face

212, second class's face 3, substrate

31, groove 4, radiating fin

41, punching pin

5, base plate 51, groove

52, end face 6, fin

61, extension 7, mould

Embodiment

Head sees also Fig. 3, shown in Figure 4, the inclined riveted construction of a kind of fin of the utility model and base plate comprises by base plate 5 and some fin 6 structure groups forming, wherein: this base plate 5, equidistantly be provided with some oblique grooves 51 in its surface, and be provided with end face 52 in 51 of adjacent grooves; This fin 6 is to have an oblique extension 61 in its bottom, and just can adopt in the groove 51 of the corresponding insertion of side direction base plate 5; By the said structure feature, the groove 51 of the corresponding respectively base plate 5 of fin 6 can be plugged finish after, each end face 52 (as Fig. 4) that has this base plate 5 of mould 7 radial punch of a plurality of grinding tooths by a bottom surface, make these end face 52 stressed downward extrusions and the extension of fin 6 is closed 61 and closely be consolidated in the groove 51 and make its integrally combine (seeing also Fig. 5, Fig. 6), the apical margin of this end face 52 is the while pressurized simultaneously, and produce to both sides and to extend out deformation, make the fin 6 that are positioned in base plate 5 grooves 51 be had no the gap by the rivet clasp one.

In addition, this base plate 5 and fin 6 can adopt copper or aluminium moulding.

Claims

1, the inclined riveted construction of a kind of fin and base plate comprises by base plate and some fin structure groups forming, and it is characterized in that this base plate is equidistantly to be provided with some oblique grooves in its surface, and is provided with end face between adjacent grooves; This fin is to have an oblique extension in its bottom, and just can correspondingly insert the interior ccontaining location of groove of base plate; By the said structure feature, can with fin respectively the groove of corresponding base plate plug finish after, each end face that has this base plate of mould radial punch of a plurality of grinding tooths by a bottom surface, make the stressed downward extrusion of this end face, and the extension of fin closely is consolidated in the groove, has no the gap and it is integrally combined, the apical margin of this end face is the while pressurized simultaneously, and produce to both sides and to extend out deformation, make the fin that is positioned in the bottom plate groove must be by the rivet clasp one.

2, the inclined riveted construction of a kind of fin as claimed in claim 1 and base plate is characterized in that, this base plate and fin adopt copper or aluminium moulding.