CN102740656A - Wing-spreading type radiator - Google Patents

Abstract

A wing-spreading type heat sink is formed by connecting a plurality of radiating fins. Each heat sink comprises a connecting part, at least one heat dissipation fin part and a plurality of secondary heat dissipation fin parts. The connecting parts are connected with each other. The heat dissipation fin portions extend outwards from the connecting portion, and the heat dissipation fin portions are mutually unfolded. The secondary heat dissipation fin portions extend outwards from opposite sides of the heat dissipation fin portions and are arranged asymmetrically, the extension length of the secondary heat dissipation fin portion farthest from the connecting portion is larger than that of the secondary heat dissipation fin portion nearest to the connecting portion, and at least one part of the secondary heat dissipation fin portions and at least one part of the adjacent secondary heat dissipation fin portions are arranged in a crossed mode. The secondary heat dissipation fin part is arranged besides the original heat dissipation fin part, so that the contact area of the heat dissipation fin part and air can be increased, and the heat dissipation efficiency is further improved. In addition, the secondary heat dissipation fin portions extend outwards from the opposite sides of the heat dissipation fin portions and are arranged asymmetrically, and the circulation of air among the secondary heat dissipation fin portions can be increased through the asymmetric arrangement, so that the heat dissipation efficiency is improved.

Description

Wing Radiator

technical field

The present invention relates to a radiator, in particular to a spread-wing radiator.

Background technique

With the rapid development of electronic products towards high performance, high frequency, high speed and light weight, the heating temperature of electronic products is getting higher and higher, which is prone to instability and affects product reliability and service life. Therefore, heat dissipation has become one of the important issues of electronic products, and heat sink is a common heat dissipation component, and how to improve the design of heat dissipation fins to improve heat dissipation efficiency is a key project of development.

A known spread-wing radiator is formed by connecting multiple cooling fins, each cooling fin has a connecting portion and a cooling fin, and the cooling fin extends from one side of the connecting portion. When assembling, connect the cooling fins side by side, and then expand the cooling fins of each cooling fin to form a spread-wing type radiator, and there is a space between the cooling fins of the cooling fins. When the connecting portion of the spread-wing radiator contacts a heat source, the heat is transferred from the connecting portion to the cooling fins, and then the heat is taken away by air conduction and convection for heat dissipation.

Since the spread-wing radiator dissipates heat through air conduction and convection at the same time, the more the area of the heat dissipation fins in contact with the air, the better the heat dissipation effect. However, the known spread-wing heat sink is limited by the internal space of the electronic product due to the contact area of the heat dissipation fins with the air, so that the heat dissipation effect cannot be improved any more. It is not enough for the heat dissipation of high-frequency electronic components.

Therefore, how to provide a spread-wing heat sink that breaks away from conventional designs, increases the contact area of the heat dissipation fins with the air in a limited installation space, and further improves heat dissipation performance is one of the important issues.

Contents of the invention

The object of the present invention is to provide a spread-wing radiator that can increase the contact area of the heat dissipation fins with the air and further improve the heat dissipation efficiency.

The present invention can be realized by adopting the following technical solutions.

A wing-spread radiator of the present invention is formed by connecting multiple cooling fins. Each heat sink includes a connecting portion, at least one heat dissipation fin and a plurality of secondary heat dissipation fins. The connection parts are connected to each other. The heat dissipation fins extend outward from the connecting portion, and the heat dissipation fins spread out from each other. The secondary heat dissipation fins extend outward from opposite sides of the heat dissipation fins and are arranged asymmetrically, and the extended length of the secondary heat dissipation fins farthest from the connecting portion is longer than the extended length of the secondary heat dissipation fins closest to the connecting portion is large, and at least a part of the secondary heat dissipation fins is arranged to intersect with at least a part of the adjacent secondary heat dissipation fins.

Based on the above, a spread-wing radiator according to the present invention has a plurality of secondary heat dissipation fins extending outward from the heat dissipation fins. Compared with the prior art, the present invention also provides secondary heat dissipation fins in addition to the original heat dissipation fins, so that the contact area of the heat dissipation fins with the air can be increased, and the heat dissipation efficiency can be further improved.

In addition, the secondary heat dissipation fins extend outward from opposite sides of the heat dissipation fins and are arranged asymmetrically. Through the asymmetric arrangement, air circulation between the secondary heat dissipation fins can be increased to improve heat dissipation performance. Moreover, through the asymmetrical arrangement, the sub-radiation fins and the adjacent sub-radiation fins can be intersected, thereby reducing the increased size caused by disposing the sub-radiation fins, and miniaturizing the product. In addition, the extended length of the sub-radiation fin farthest from the connecting portion is longer than the extension length of the sub-radiation fin closest to the connecting portion, and further increases the secondary heat dissipation by making full use of the outer space after the fins are deployed. The area of the fins in contact with the air improves the heat dissipation performance.

Description of drawings

1A and 1B are schematic diagrams of a spread-wing radiator according to a first embodiment of the present invention;

2 is a schematic diagram of a spread-wing radiator according to a second embodiment of the present invention;

3 is a schematic diagram of a spread-wing radiator according to a third embodiment of the present invention;

4 is a schematic diagram of a spread-wing radiator according to a fourth embodiment of the present invention;

5 is a schematic diagram of a spread-wing radiator according to a fifth embodiment of the present invention;

6 is a schematic diagram of a spread-wing radiator according to a sixth embodiment of the present invention;

7 is a schematic diagram of a spread-wing radiator according to a seventh embodiment of the present invention;

8 is a schematic diagram of a spread-wing radiator according to an eighth embodiment of the present invention; and

Fig. 9 is a side view of a spread-wing radiator according to a ninth embodiment of the present invention.

Description of main component symbols:

1～9: spread-wing radiator

11, 21, 31, 41, 51, 61, 71, 81, 91: heat sink

111, 211, 311, 411, 511, 611, 711, 811, 911: connection part

122, 212, 214, 312, 314, 412, 414, 512, 612, 614, 712, 812, 912, 914: cooling fins

123, 213, 215, 313, 315, 413, 415, 513, 613, 615, 713, 813, 913, 915: Secondary cooling fins

416: Cooling Department

717: Partition

Z1, Z2: cooling block

Detailed ways

The following will describe the spread-wing radiator according to the preferred embodiment of the present invention with reference to the relevant drawings, wherein the same components will be described with the same component symbols.

[The first embodiment: single-sided deployment, the secondary heat dissipation fins are large on the outside and small on the inside, asymmetrically arranged, and crossed]

Referring to FIG. 1A and FIG. 1B , a spread-wing radiator 1 according to the first embodiment of the present invention is formed by connecting a plurality of cooling fins 11 . Each heat sink 11 includes a connecting portion 111 , a heat dissipation fin portion 112 and a plurality of secondary heat dissipation fin portions 113 . Wherein, the heat dissipation fins 112 extend outward from the connecting portion 111 , and the heat dissipation fins 112 of the heat dissipation fins 11 are mutually extended. The secondary heat dissipation fins 113 extend outward from opposite sides of the heat dissipation fins 112 . Here, the sub-radiation fins 113 are arranged vertically outward from opposite sides of the heat dissipation fins 112, and are arranged asymmetrically, so that at least a part of the sub-radiation fins 113 crosses at least a part of the adjacent sub-radiation fins 113. Of course, the secondary heat dissipation fins 113 can also be arranged on the heat dissipation fins 112 in other ways, for example, they are not vertically arranged outwards from opposite sides of the heat dissipation fins 112 .

In addition, for the same heat sink 11 , the extended length of the secondary heat dissipation fin 113 farthest from the connecting portion 111 is greater than the extended length of the secondary heat dissipation fin 113 closest to the connecting portion 111 . Here, according to the distance from the connecting portion 111, the extension length of the sub-radiation fins 113 gradually changes, that is, the extension lengths of the sub-radiation fins 113 of the same heat dissipation fin 112 change sequentially (the sub-radiation fins 113 113 along the extended outward direction); of course, the extension length of the sub-radiation fins 113 of the same heat dissipation fin 112 can also be arranged in a staggered length, or have no specific extension length change relationship, etc. In this way, the outer space of the expanded heat dissipation fins 112 can be fully utilized, and the area of the secondary heat dissipation fins 113 in contact with the air can be further increased to improve heat dissipation performance.

In this embodiment, each cooling fin 11 is integrally formed. The connecting portions 111 of the heat sinks 11 are connected by screw locking to form the spread-wing heat sink 1 . Wherein, the connecting portions 111 of the heat sinks 11 are connected side by side. In addition, the heat sink 11 can also be connected by riveting.

In this embodiment, the cooling fins 11 may not be completely identical (different fins) or completely identical (same fins). And this embodiment does not limit the shape and size of each connecting portion 111, each heat dissipation fin 112 and each heat dissipation fin 113, for example, the shape or size of adjacent heat dissipation fins 11 may be the same or different, or adjacent heat dissipation The shapes and sizes of the heat dissipation fins 112 of the sheet 11 may be the same or different. The technical focus of this embodiment is that the secondary heat dissipation fins 113 extend from opposite sides of the heat dissipation fins 112 and are arranged asymmetrically, and the size of the secondary heat dissipation fins 113 is larger on the outside and smaller on the inside, and the secondary heat dissipation fins 113 cross to increase The contact area between the spread-wing radiator 1 and the air improves the cooling efficiency.

In this embodiment, there are many ways to expand the heat sink 11. For example, the heat sink 11 can be expanded by means of an expansion device, or as shown in FIG. 1A and FIG. 1B, during assembly, part (at least one of them) The secondary heat dissipation fins 113 interfere with the adjacent heat dissipation fins 111 , so that the respective heat dissipation fins 112 spread out from each other.

[The second embodiment: double-sided expansion, the secondary heat dissipation fins are large on the outside and small on the inside, asymmetrically arranged, and crossed]

Please refer to FIG. 2 , which shows a spread-wing radiator 2 according to the second embodiment of the present invention, which is formed by connecting multiple cooling fins 21 . Each heat sink 21 includes a connecting portion 211 , a heat dissipation fin 212 and a plurality of sub-radiation fins 213 , and further includes another heat dissipation fin 214 and a plurality of sub-radiation fins 215 . The heat dissipation fins 212 and 214 respectively extend outward from different sides of the connecting portion 211 . In addition, the secondary cooling fins 213 , 215 are asymmetrically and vertically disposed on opposite sides of the cooling fins 212 , 214 . Through the two-way arrangement of the heat dissipation fins 212 , 214 and the secondary heat dissipation fins 213 , 215 , the heat dissipation performance can be further improved.

[Third embodiment: double-sided expansion (different sizes on both sides), secondary heat dissipation fins are large on the outside and small on the inside, asymmetrically arranged, crossed]

Please refer to FIG. 3 , which shows a spread-wing radiator 3 according to the third embodiment of the present invention, which is formed by connecting a plurality of cooling fins 31 . Each heat sink 31 includes a connecting portion 311 , a heat dissipation fin 312 , and a plurality of sub-radiation fins 313 , and further includes another heat dissipation fin 314 and a plurality of sub-radiation fins 315 . Wherein, the heat dissipation fins 314 are smaller than the heat dissipation fins 312 . In addition, the secondary cooling fins 313 , 315 are vertically and asymmetrically disposed on opposite sides of the cooling fins 312 , 314 . Through the two-way arrangement of the heat dissipation fins 312 , 314 and the secondary heat dissipation fins 313 , 315 , the heat dissipation performance can be further improved.

[Fourth embodiment: unfolded on three sides, the secondary cooling fins are large on the outside and small on the inside, asymmetrically arranged, crossed]

Please refer to FIG. 4 , which shows a spread-wing radiator 4 according to the fourth embodiment of the present invention, which is formed by connecting a plurality of cooling fins 41 . Each heat sink 41 includes a connecting portion 411 , two heat dissipation fins 412 , 414 , a plurality of secondary heat dissipation fins 413 , 415 , and also includes a heat dissipation portion 416 . The heat dissipation fins 412 , 414 and the heat dissipation portion 416 respectively extend outward from different sides of the connection portion 411 , and here extend outward from the left, right and upper sides of the connection portion 411 . In addition, the secondary cooling fins 413 , 415 are vertically and asymmetrically disposed on opposite sides of the cooling fins 412 , 414 . Through the three-way arrangement of the heat dissipation fins 412 , 414 , the secondary heat dissipation fins 413 , 415 and the heat dissipation portion 416 , the heat dissipation performance can be further improved.

[Fifth embodiment: single-sided deployment, the secondary heat dissipation fins are large on the outside and small on the inside, asymmetrically arranged, crossed, and not vertical]

Please refer to FIG. 5 , which shows a spread-wing radiator 5 according to the fifth embodiment of the present invention, which is formed by connecting multiple cooling fins 51 . Each heat sink 51 includes a connecting portion 511 , a heat dissipation fin portion 512 and a plurality of secondary heat dissipation fin portions 513 . The heat dissipation fins 512 extend outward from one side of the connecting portion 511 . In addition, the sub-radiation fins 513 are arranged symmetrically and not vertically on opposite sides of the heat dissipation fins 512 . Through the arrangement of the heat dissipation fins 512 and the secondary heat dissipation fins 513 , the heat dissipation performance can be further improved.

[Sixth embodiment: double-sided deployment, the secondary heat dissipation fins are large outside and small inside, asymmetrically arranged, crossed, and the outside of the heat dissipation fins is raised]

Please refer to FIG. 6 , which shows a spread-wing radiator 6 according to the sixth embodiment of the present invention, which is formed by connecting a plurality of cooling fins 61 . Each heat sink 61 includes a connecting portion 611 , a heat dissipation fin 612 , and a plurality of sub-radiation fins 613 , and further includes another heat dissipation fin 614 and a plurality of sub-radiation fins 615 . The cooling fins 612 , 614 respectively extend outward from different sides of the connecting portion 611 and protrude, so that the outer sides of the cooling fins 612 , 614 away from the connecting portion 611 are higher than the inner sides near the connecting portion 611 .

[Embodiment 7: Single-sided deployment, the secondary cooling fins are large on the outside and small on the inside, arranged asymmetrically, intersecting, and the cooling fins have partitions]

Please refer to FIG. 7 , which is a schematic diagram of a spread-wing radiator 7 according to a seventh embodiment of the present invention. The spread-wing radiator 7 is formed by connecting a plurality of cooling fins 71 . Each heat sink 71 includes a connecting portion 711 , a heat dissipation fin portion 712 , a plurality of secondary heat dissipation fin portions 713 , and at least one partition portion 717 . The partition 717 is disposed on the heat dissipation fin 712 , and the partition 717 divides the heat dissipation fin 712 and the secondary heat dissipation fin 713 into two heat dissipation zones Z1 and Z2 . In this way, more air can flow into the space between the cooling fins 71 to increase the airflow effect of the spread-wing radiator 7 to improve the cooling effect of the spread-wing radiator 7 .

It is worth mentioning that the number of partitions is not limited, and multiple partitions can be provided to divide the heat dissipation fins into two or more heat dissipation blocks, so as to further improve the heat dissipation effect of the spread-wing radiator.

[Eighth embodiment: single-sided deployment, the secondary heat dissipation fins are large on the outside and small on the inside, asymmetrically arranged, crossed, the heat dissipation fins have partitions, and the heat dissipation blocks are misplaced]

Please refer to FIG. 8 , which is a top view of a spread-wing radiator 8 according to an eighth embodiment of the present invention. The spread-wing radiator 8 is formed by connecting a plurality of cooling fins 81 . Each heat sink 81 includes a connecting portion 811 , a heat dissipation fin portion 812 , a plurality of secondary heat dissipation fin portions 813 , and at least one partition portion (not shown in the figure). The partition is disposed on the heat dissipation fin 812 , and the partition divides the heat dissipation fin 812 and the secondary heat dissipation fin 813 into two heat dissipation zones Z1 and Z2 . The heat dissipating blocks Z1 and Z2 can be arranged in offset positions on a projection plane along the direction perpendicular to the drawing plane. Thereby, the airflow effect of the spread-wing radiator 8 is further increased, and the heat dissipation effect of the spread-wing radiator 8 is improved.

[Ninth embodiment: double-sided expansion (different sizes on both sides), the secondary cooling fins are large on the outside and small on the inside, asymmetrically arranged, crossed, and the cooling fins have partitions]

Please refer to FIG. 9 , which is a side view of a spread-wing radiator 9 according to a ninth embodiment of the present invention. The spread-wing radiator 9 is formed by connecting a plurality of cooling fins 91 . Each heat sink 91 includes a connecting portion 911, a heat dissipation fin 912, a plurality of sub-radiation fins 913 and at least one partition (not shown in the figure), and also includes another heat dissipation fin 914 and a plurality of sub-radiation fins Section 915. The partition is disposed on the heat dissipation fins 912, 914, and the partition divides the heat dissipation fins 912, 914 and the secondary heat dissipation fins 913, 915 into two heat dissipation zones Z1, Z2. In this way, more air can flow into the space between the cooling fins 91 to increase the airflow effect of the spread-wing radiator 9 to improve the heat dissipation effect of the spread-wing radiator 9 .

In addition, the heat dissipating blocks Z1 and Z2 can also be arranged in offset positions on a projection plane along a direction perpendicular to the drawing plane. Thereby, the airflow effect of the spread-wing radiator 9 is further increased, and the heat dissipation effect of the spread-wing radiator 9 is improved.

In summary, according to the present invention, a spread-wing radiator has a plurality of secondary heat dissipation fins extending outward from the heat dissipation fins. Compared with the prior art, the present invention also provides secondary heat dissipation fins in addition to the original heat dissipation fins, so that the contact area of the heat dissipation fins with the air can be increased, and the heat dissipation efficiency can be further improved.

In addition, the secondary heat dissipation fins extend outward from opposite sides of the heat dissipation fins and are arranged asymmetrically. Through the asymmetric arrangement, air circulation between the secondary heat dissipation fins can be increased to improve heat dissipation performance. Moreover, through the asymmetrical arrangement, the sub-radiation fins and the adjacent sub-radiation fins can be intersected, thereby reducing the increased size caused by disposing the sub-radiation fins, and miniaturizing the product. In addition, the extended length of the sub-radiation fin farthest from the connecting portion is longer than the extension length of the sub-radiation fin closest to the connecting portion, and further increases the secondary heat dissipation by making full use of the outer space after the fins are deployed. The area of the fins in contact with the air improves the heat dissipation performance.

The above description is only illustrative, not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included within the scope defined in the claims.

Claims (13)

1. A wing-spread radiator is formed by connecting a plurality of heat sinks, and is characterized in that each heat sink comprises: a connecting part, each of the connecting parts is connected to each other; at least one heat dissipation fin extending outward from the connecting portion, and the heat dissipation fins are spread out from each other; and a plurality of secondary heat dissipation fins extending outward from opposite sides of the heat dissipation fins and arranged asymmetrically, and the length of the secondary heat dissipation fins furthest from the connecting portion is longer than that of the secondary heat dissipation fins closest to the connecting portion The extended length of the secondary heat dissipation fins is large, and at least a part of the secondary heat dissipation fins is arranged to cross with at least a part of the adjacent secondary heat dissipation fins. 2 . The spread-wing heat sink according to claim 1 , wherein when each heat sink has a plurality of heat dissipation fins, each of the heat dissipation fins extends outward from different sides of the connecting portion. 3 . 3 . The spread-wing radiator according to claim 2 , wherein the heat dissipation fins have the same or different shapes or sizes. 4 . 4 . The spread-wing radiator according to claim 1 , wherein the secondary heat dissipation fins are arranged vertically or non-vertically on opposite sides of the heat dissipation fins. 5. The spread-wing radiator according to claim 1, wherein each cooling fin also comprises: At least one heat dissipation portion extends outward from the connecting portion. 6 . The spread-wing radiator according to claim 5 , wherein the heat dissipation parts are spread out from each other. 7 . 7 . The spread-wing heat sink according to claim 1 , wherein the extended lengths of the secondary heat dissipation fins of the same heat dissipation fin change sequentially. 8 . 8. The spread-wing radiator according to claim 1, characterized in that the shapes or sizes of adjacent fins are the same or different. 9 . The spread-wing heat sink according to claim 1 , wherein the heat dissipation fins of adjacent heat dissipation fins have the same or different shapes or sizes. 10 . The spread-wing heat sink according to claim 1 , wherein at least one of the secondary heat dissipation fins interferes with the adjacent heat dissipation fins, so that the heat dissipation fins spread apart from each other. 11 . 11. The spread-wing radiator according to claim 1, wherein each heat sink further comprises: At least one partition divides the heat dissipation fins and the secondary heat dissipation fins into at least two heat dissipation blocks. 12 . The spread-wing heat sink according to claim 11 , wherein the heat dissipation blocks are arranged in offset positions. 13 . 13 . The spread-wing heat sink according to claim 1 , wherein the height of the outer side of the heat dissipation fin away from the connecting portion is higher than the height of the inner side close to the connecting portion. 14 .

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