TWI513950B - Heat sink - Google Patents

Description

heat sink

The present invention relates to a heat sink, and more particularly to a heat sink for dissipating heat from an electronic component.

With the rapid development of the electronic information industry, heat generated by heat-generating electronic components such as micro-processing wafers is increasing. In order to dissipate such heat to ensure the normal operation of electronic components, the industry generally employs a heat sink on the electronic components. The heat-dissipating electronic component is dissipated.

Conventional heat sinks generally include a heat sink that is formed by a plurality of heat sink fins that form a gas passage between each adjacent heat sink fin. In order to increase the heat dissipation performance of the heat sink, the overall or partial size of the heat sink is appropriately increased according to the available space in the electronic device to increase the heat dissipation area. However, as the size of the heat sink increases, the structural strength between the heat dissipation fins increases. Relatively lower, when the heat sink is assembled into the electronic device, it will inevitably collide with other components, which will cause deformation on both sides of the heat sink, thereby affecting the heat dissipation performance.

In view of this, it is necessary to provide a heat sink having a strong structural strength to prevent deformation on both sides thereof.

A heat sink includes a plurality of heat dissipating fins arranged in parallel, wherein the outermost two fins of the heat dissipating fin are a first fin and a second fin, respectively The heat dissipation fins adjacent to the first heat dissipation fins are the third heat dissipation fins, and the heat dissipation fins adjacent to the second heat dissipation fins are the fourth heat dissipation fins, the first heat dissipation fins and the third heat dissipation fins One of the heat dissipation fins is provided with a protrusion that protrudes toward the other heat dissipation fin and abuts against the other heat dissipation fin, and one of the heat dissipation fins between the second heat dissipation fin and the fourth heat dissipation fin A protrusion is provided that protrudes toward the other heat dissipation fin and abuts against the other heat dissipation fin.

Compared with the prior art, the heat sink is provided with a protrusion, and each protrusion is respectively supported on the inner side of the first heat dissipation fin and the second heat dissipation fin of the outermost side of the heat sink, thereby improving the heat sink. The structural strength prevents the two sides from being deformed by collision with other components when assembling the heat sink, thereby ensuring better heat dissipation performance.

100‧‧‧heatsink

10‧‧‧ Heat sink fins

20‧‧‧ channel

11‧‧‧Ontology

13‧‧‧Folding

110‧‧‧Part 1

113‧‧‧Part II

10a‧‧‧First heat sink fin

10b‧‧‧second heat sink fin

10c‧‧‧ Third heat sink fin

10d‧‧‧fourth heat sink fin

15, 16‧‧‧ bumps

1 is a perspective view of an embodiment of a heat sink of the present invention.

2 is a perspective view of the outermost heat sink fin of the heat sink shown in FIG. 1 .

3 is an inverted view of the heat sink shown in FIG. 1.

As shown in FIG. 1 , the heat sink 100 is formed by arranging a plurality of heat dissipation fins 10 , and a gas passage 20 is formed between each adjacent two heat dissipation fins 10 .

Each of the heat dissipation fins 10 includes a body 11 and a flange 13 formed by bending a top end and a bottom end of the body 11 in the same direction. The body 11 includes a first portion 110 and a second portion 113 extending outwardly from a side of the first portion 110. The first portion 110 is in the same plane as the bottom end of the second portion 113. The height is higher than the first portion 110. The flanges 13 of each of the heat dissipation fins 10 extend perpendicularly outward from the heat dissipation fins 10, and the ends of the flanges 13 respectively abut It is on the body 11 of the adjacent heat dissipation fins 10.

Referring to FIG. 2 and FIG. 3 , the two outermost heat dissipation fins 10 of the heat sink 100 are respectively a first heat dissipation fin 10 a and a second heat dissipation fin 10 b adjacent to the first heat dissipation fin 10 a. The heat dissipation fins 10 are the third heat dissipation fins 10c, and the heat dissipation fins 10 adjacent to the second heat dissipation fins 10b are the fourth heat dissipation fins 10d. A protrusion 15 and 16 are respectively disposed between the first heat dissipation fin 10a and the third heat dissipation fin 10c and between the second heat dissipation fin 10b and the fourth heat dissipation fin 10d. In this embodiment, the protrusion 15 protrudes from the first heat dissipation fin 10a toward the third heat dissipation fin 10c and has its end abutting against the third heat dissipation fin 10c. The protrusion 16 is cooled by the fourth heat dissipation. The fin 10d protrudes in the direction of the second heat radiation fin 10b and has its end abutting against the second heat radiation fin 10b. The protrusions 15 and 16 have a trapezoidal cross section and are integrally stamped by the central portions of the first heat dissipation fins 10a and the fourth heat dissipation fins 10d. The protrusions 15 and 16 are respectively formed on the second portion 113 of the first heat dissipation fin 10a and the second portion 113 of the fourth heat dissipation fin 10d, and are respectively folded by one side of each second portion 113. The sides 13 extend in parallel to the other side. The heat sink 100 is provided with protrusions 15 and 16, and the protrusions 15 and 16 are respectively supported on the inner side of the first heat dissipation fin 10a and the second heat dissipation fin 10b of the outermost side of the heat sink 100, thereby improving the The structural strength of the heat sink 100 prevents the two sides of the heat sink 100 from being deformed by collision with other components, thereby ensuring better heat dissipation performance.

In a specific implementation, the structure of the heat sink 100 is not limited to the case of the embodiment. The body 11 of each heat dissipation fin 10 can be divided into the first portion 110 and the second portion 113 having different heights, and the entire body 11 can be made the same height. a plate body, the protrusion 15 may protrude from the first heat dissipation fin 10a toward the third heat dissipation fin 10c and abut against the third heat dissipation fin 10c, or may be first to the third heat dissipation fin 10c. Direction of the heat dissipation fin 10a It protrudes and abuts against the first heat dissipation fin 10a. Similarly, the protrusion 16 may protrude from the fourth heat dissipation fin 10d toward the second heat dissipation fin 10b and abut against the second heat dissipation fin 10b, or may be from the second heat dissipation fin 10b to the fourth heat dissipation fin. The direction of the sheet 10d is convex and abuts against the fourth heat sink fin 10d. The arrangement position and the extension length of the protrusions 15 and 16 are not limited to the case of the embodiment, that is, the protrusions 15 and 16 may be disposed only on the second portion 113 of the body 11 or at the same time in the first portion. At 110, one side of the heat dissipation fin 10 may extend to the middle portion along the extending direction thereof. The protrusions 15 and 16 may have a trapezoidal cross section or a rectangular shape or other shapes. The protrusions 15 and 16 may be one or two or more.

It is to be understood that those skilled in the art can make various changes and modifications of the various embodiments in accordance with the present invention, and all such changes and modifications should fall within the scope of the claims of the present invention. .

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

100‧‧‧heatsink

13‧‧‧Folding

10a‧‧‧First heat sink fin

10b‧‧‧second heat sink fin

10c‧‧‧ Third heat sink fin

10d‧‧‧fourth heat sink fin

15, 16‧‧‧ bumps

Claims (9)

A heat sink comprising a plurality of heat-dissipating fins arranged in parallel, wherein the heat-dissipating fins of the heat-dissipating fins are respectively a first heat-dissipating fin and a second heat-dissipating fin, and the first heat-dissipating fin The heat dissipation fins adjacent to the fins are the third heat dissipation fins, and the heat dissipation fins adjacent to the second heat dissipation fins are the fourth heat dissipation fins, and one of the first heat dissipation fins and the third heat dissipation fins The heat dissipation fin is provided with a protrusion protruding toward the other heat dissipation fin and abutting against the other heat dissipation fin, and one of the heat dissipation fins between the second heat dissipation fin and the fourth heat dissipation fin is provided with a direction The other heat dissipation fin protrudes and abuts against the protrusion on the other heat dissipation fin, and each of the heat dissipation fins includes a body and a direction extending from a top end and a bottom end of the body toward a heat dissipation fin adjacent thereto Folding. The heat sink of claim 1, wherein the protrusions are respectively protruded outward from the first heat dissipation fins and the fourth heat dissipation fins and respectively abut the third heat dissipation fins and the second heat dissipation fins Chip. The heat sink of claim 1, wherein the protrusions are respectively protruded outward from the first heat dissipation fins and the second heat dissipation fins and respectively abut the third heat dissipation fins and the fourth heat dissipation fins Chip. The heat sink of claim 1, wherein the protrusions are respectively protruded outward from the third heat dissipation fins and the fourth heat dissipation fins and respectively abut the first heat dissipation fins and the second heat dissipation fins Chip. The heat sink according to any one of claims 1 to 4, wherein the protrusion has a trapezoidal cross section. The heat sink according to any one of claims 1 to 4, wherein the protrusion is integrally stamped from a heat dissipating fin on which it is located. A heat sink according to any one of claims 1 to 4, wherein the protrusion Located in the middle of the heat sink fins where it is located. The heat sink according to any one of claims 1 to 4, wherein the protrusions extend in a direction parallel to the hem. The heat sink of claim 1, wherein the body comprises a first portion and a second portion extending outward from a side of the first portion, the second portion having a height higher than the first portion, the protrusion It is placed on the second part of the heat sink fin where it is located.