TWM457397U - Heat dissipating device - Google Patents

Description

heat sink

This creation is related to the heat sink, especially related to the combination of the heat sink fins and the seat.

According to the general aluminum heat sink, the fin and the seat body are separately formed, and then the fins are embedded on the seat body, and the two are required to have good thermal contact, please refer to the first figure A and B. It discloses a typical fin-to-seat combination method, which is formed on one side of the base body 1 and is sharply shaved by a sharp scraper to form a plurality of parallel deep grooves 11 and shallow grooves 12, the shallow grooves 11,12 are interlaced with each other, and the fins 2 are respectively inserted into the deep trenches 11, and then inserted into the fins 2 by a stamping die 3 similar to a tool to punch the shallow trenches 12, and the shallow trenches 12 are punched. The sharp edge of the die 3 is deformed to deform outward, and the fins 2 are tightly engaged, so that the fins 2 are tightly integrated with the base 1.

However, there is a serious lack of the above-mentioned manufacturing method, that is, the doctor blade for cutting the grooves 11, 12 on the seat body 1 and the stamping die 3 for punching the shallow groove 12 are extremely sharp, and the blade portion is planed and In the stamping process, it is easy to crack and corner, so it is necessary to change the scraper and stamping die frequently. The replacement cost is very high, and the replacement process must interrupt the production process, which is not economical.

The main purpose of the present invention is to provide a heat sink which can reduce the production cost and shorten the working time and improve the labor cost by not using the scraper and the sharp stamping die without the blade being broken. Production efficiency.

In order to achieve the above object, the present invention provides a heat sink which is composed of a fin group and a body, and a side of the fin group and the seat body are provided with a plurality of rails, and a cross section of the rails The hook is in the shape of a hook, and one side of the seat body is provided with a groove corresponding to the rail, so that the seat body and the fin group can be combined by the corresponding fitting of the rail and the groove, and then the fin is inserted into the stamping die. The fins and the rails are stamped between the fins of the group, and the grooves and the rails are deformed to make the body and the fin group tightly integrated.

First, the conventional part:

1‧‧‧ body

11‧‧‧deep trench

12‧‧‧ shallow trench

2‧‧‧Fins

3‧‧‧Pressing die

Second, the creative part:

4,4a,4b,4d‧‧‧body

41, 41a, 41b, 41c, 41d‧‧‧ grooves

42‧‧‧ semicircular trough

5‧‧‧Fin set

51, 51a, 51b, 51c‧‧ ‧ rails

52‧‧‧Semicircular trough

6‧‧‧heat pipe

7,7a,7b,7d‧‧‧Stamping dies

First Figure A/B: Schematic diagram of a conventional heat sink manufacturing method.

Second Figure: An exploded perspective view of a first embodiment of the present invention.

Third figure: a three-dimensional combination diagram of the first embodiment of the present creation.

Fourth Figure: A side cross-sectional view of a first embodiment of the present invention.

Fifth Figure A/B: A comparison diagram before and after stamping of the first embodiment of the present invention.

Figure 6 is a side cross-sectional view of the first embodiment of the present invention after stamping.

Fig. 7A/B: A comparison diagram before and after stamping of the second embodiment of the present invention.

Eighth Diagram A/B: A comparison diagram before and after stamping of the third embodiment of the present creation.

Ninth Diagram A/B: A comparison diagram before and after the stamping of the fourth embodiment of the present invention.

Fig. 10/A: A comparison diagram before and after the stamping of the fifth embodiment of the present invention.

Eleventh figure: A side view of the fifth embodiment of the present invention after stamping.

Please refer to the second figure, which is a perspective exploded view of the first embodiment of the present invention. The heat sink of the present invention is mainly composed of a body 4 and a fin group 5, and if necessary, an additional one or One or more heat pipes 6 are connected to the seat body 4 and the fin group 5, and the fin group 5 is formed by stacking a plurality of fins, and one side of the fin group 5 and the seat body 4 is convexly provided with a plurality of parallel rails. In the strip 51, the cross section of the rail 51 is hook-shaped, and the embodiment shown in the figure is inverted T-shaped. One side of the seat body 4 is provided with a plurality of grooves 41 corresponding to the rail 51, which can be borrowed. The rails 51 are matched with the recesses 41 to join the fins 4 and the fin sets 5, and the other bases 4 and the fin sets 5 are also provided with corresponding semicircular grooves 42, 52 and a pair of semicircular grooves 42. 52 can form a circular channel, just one end of the heat pipe 6 can be accommodated therein.

The third and fourth figures are respectively a three-dimensional combination view and a side cross-sectional view of the first embodiment of the creation, and it can be seen that the fitting of the inverted T-shaped rail 51 and the groove 41 is The seat body 4 and the fin set 5 have formed a hooking joint, but are still not slidably engaged and are still slidable. Then, as shown in FIG. 5A, the stamping die 7 is inserted between the fins of the fin group 5 to punch the rail 51, and the stamping die 7 can be pressed against the T-shaped groove by its special shape. At the outer ends of the outer side of the 41, the groove 41 is deformed, forcing the deformation of the rail 51 of the fin group 5, thereby causing the base body 4 to be tightly integrated with the fin group 5, that is, as shown in FIG. 5B and FIG. Shown.

The rail 51 of the present invention is not limited to the aforementioned inverted T shape, and any other shape having a hooking action may be applied. As shown in the seventh diagrams A and B, the cross section is L-shaped. The rail 51a, the stamping die 7a also has a corresponding shape change to compress one of the outer ends of the L-shaped recess 41a to deform it to be tightly coupled with the fin set 5a. 8A and B are rails 51b having an inverted T-shaped cross section but slightly recessed at the center of the top surface of the crossbar, and the stamping die 7b presses the two outer ends of the inverted T-shaped recess 41b. It is bent downward to be tightly bonded to the fin group 5b. In the ninth diagrams A and B, the seat body 4c is formed into a rectangular columnar body and fitted into the hollow fin group 5c. The four sides of the seat body 4c are respectively provided with T-shaped grooves 41c and fins. In the sheet group 5c, rails 51c of corresponding shapes are formed, and after the stamping dies are respectively pressed, the four-sided grooves 41c can be bent and deformed to be tightly coupled with the fin group 5c. As shown in the tenth diagrams A and B, the fin group 5 is still provided with the inverted T-shaped rail 51 as in the first embodiment, and the seat body 4d is also provided with the inverted T-shaped groove 41d, but the cross-section of the recess 41d The width of the portion is large to form a gap, and the top of the groove is slightly raised. When the stamping die 7d is pressed, the ridge portion is deformed inward, forcing the rail 51 to move downward to fill the original gap. That is, the fin group 5 and the seat body 4d can be tightly coupled, and the eleventh figure is an overall sectional view of the embodiment. Of course, in addition to the various rail shapes disclosed above, there are other equivalent variations that can be used, and are not listed here, but those skilled in the art can change their design.

The above is the specific description of this creation, and is not intended to limit the creation of this creation. Any equivalent change that uses the creative spirit of this creation shall be the patent scope of this case.

4‧‧‧ body

51‧‧‧ Groove

42‧‧‧ semicircular trough

5‧‧‧Fin set

51‧‧‧ rails

52‧‧‧Semicircular trough

6‧‧‧heat pipe

Claims (8)

A heat sink comprising: a fin set having a plurality of parallel rails on one side thereof and a hook shape in a cross section; and a body having a groove corresponding to the rail on one side thereof The rail is received therein, and the seat body is tightly coupled with the fin group by deformation of the groove. The heat sink of claim 1, wherein the rail has an inverted T-shaped cross section and the recess is also inverted T-shaped. The heat sink of claim 2, wherein the inverted T-shaped groove has a width greater than a rail to form a gap, and the top of the groove faces outwardly. The heat sink of claim 1, wherein the rail has an L-shaped cross section and the groove is L-shaped. The heat sink according to claim 1, wherein the cross section of the rail is inverted T-shaped but the center of the top surface of the crossbar is slightly recessed, and the groove is also inverted T-shaped. The heat sink according to claim 1, wherein the seat system is a columnar body, and the fin set is hollow to accommodate the columnar seat body in a longitudinal direction. The heat sink of claim 6, wherein the plurality of sides of the body are respectively provided with grooves, and the fin sets are also provided with corresponding rails. The heat sink of claim 6 or 7, wherein the rail has an inverted T-shaped cross section and the recess is also inverted T-shaped.