TWI422314B - Heat sink assembly - Google Patents

Description

Radiator combination

The present invention relates to a heat sink assembly, and more particularly to a heat sink assembly for additional card heat dissipation.

In recent years, with the rapid development of computer technology, the integration of various add-on cards installed inside it is getting higher and higher, and the electronic components mounted on various add-on cards generate heat when working, such as the inability to effectively dissipate heat. The additional card is operating normally.

The industry usually installs a heat sink on the surface of the add-on card to assist in heat dissipation. In order to make the heat sink and the heating element close to each other, the plurality of U-shaped fasteners are usually fastened to one side of the heat sink and the additional card, so that the heat sink is firmly connected with the heating element.

However, the separate components of the buckle and the heat sink are not separately fixed in advance, so there is a lot of inconvenience in uniform packaging and transportation; in addition, the distance between the additional cards is narrow, and the heat sink is directly mounted thereon. inconvenient.

A heat sink assembly for dissipating heat from an electronic component on an add-on card, comprising: first and second heat sinks on opposite sides of the add-on card; and a linear fastener connected to the first and second heat sinks, wherein The second heat sink has a substrate and a plurality of fastening portions extending from one side of the substrate, the buckle having a pivotal connection with the first and second heat sinks One of the pivot portion and the two abutting portions extending from opposite sides of the pivot portion, the engaging portions of the first and second heat sinks are pressed against the two abutting portions.

Compared with the prior art, the heat sink assembly of the present invention pre-assembles the two heat sinks by a buckle pivotally connected to the two heat sinks, thereby saving assembly time; and by operating the connection portion of the two heat sinks The two heat sinks are separated to sandwich the additional card between the first and second heat sinks, which is convenient to operate.

10‧‧‧First radiator

11, 31‧‧‧ substrate

13, 33‧‧ ‧ heat sink

15, 35‧‧‧Deduction Department

20‧‧‧Addition card

21‧‧‧Electronic components

30‧‧‧second radiator

40‧‧‧First buckle

41, 51‧‧‧ pivot

43, 53‧‧‧ First connection

44, 54‧‧‧Second connection

45, 55‧‧‧Affiliation

50‧‧‧Second buckle

151, 351‧‧‧ extension board

153, 353‧‧‧ card board

155, 355‧‧‧ pivotal

453, 553‧‧‧ bends

451, 551‧‧ ‧ straight section

1 is a perspective assembled view of a heat sink assembly and an add-on card of the present invention.

2 is an exploded perspective view of the heat sink assembly and the additional card of FIG. 1.

Figure 3 is a schematic view of the heat sink of Figure 1 in a closed state prior to use.

FIG. 4 is a schematic view showing the heat sink of FIG. 1 in an open state before being used in combination.

Figure 5 is a schematic view showing the heat sink assembly of Figure 1 mounted on an add-on card.

As shown in Figures 1 and 2, the heat sink assembly of the present invention is used to dissipate heat from an add-on card 20. The heat sink assembly includes first and second heat sinks 10, 30 respectively located on opposite sides of the add-on card 20 and connecting the first and second heat sinks 10, 30 to tight the first and second heat sinks 10, 30. The first buckle 40 and the second buckle 50 are disposed on opposite sides of the additional card 20. The add-on card 20 is an elongated plate body, and a plurality of electronic components 21 are symmetrically disposed on opposite sides thereof.

Referring to FIG. 3 together, the first buckle 40 is a linear fastener which is bent by an elastic metal strip. The first buckle 40 has a flat pivot portion 41, and first and second connecting portions 43, 44 and points extending from opposite ends of the pivot portion 41 upward and toward opposite sides. The two abutting portions 45 are bent and extended from the ends of the first and second connecting portions 43, 44. The first and second connecting portions 43 and 44 are at an angle to each other, and the second connecting portion 44 is slightly longer than the first connecting portion 43. Each of the abutting portions 45 has an L shape, and has one straight portion 451 extending from the connecting portion 43 and one bent portion 453 bent inward from the end of the straight straight portion 451. The straight sections 451 of the two abutting portions 45 are at the same height and are disposed parallel to the pivot portion 41. The pivot portion 41 is for connecting the first and second heat sinks 10, 30. The two abutting portions 45 are for pressing the first and second heat sinks 10, 30.

The second clip 50 is similar to the first clip 40 and is disposed side by side with the first clip 40. The second buckle 50 is bent from an elastic metal and has a flat pivot portion 51. The first and second connecting portions 53 extend upward from opposite ends of the pivot portion 51 toward the opposite sides. 54. Two abutting portions 55 extending from opposite ends of the first and second connecting portions 53, 54 respectively. The first and second connecting portions 53, 54 are at an angle to each other. The length of the first connecting portion 53 is equal to the length of the first connecting portion 43 of the first clip 40 and is opposite to the first connecting portion 43. The length of the second connecting portion 54 is equal to the length of the second connecting portion 44 of the first clip 40 and is adjacent to the second connecting portion 44. The second connecting section 54 is slightly longer than the first connecting portion 53. Each of the abutting portions 55 has an L shape, and has one straight portion 553 extending from the connecting portion 53 and one bent portion 551 bent inward from the end of the straight straight portion 553. The straight sections 553 of the two abutting portions 55 are at the same height and are disposed in parallel with the pivot portion 51. The pivot portion 51 is for connecting the first and second heat sinks 10, 30. The two abutting portions 55 are for pressing the first and second heat sinks 10, 30. The first and second clips 40, 50 may also have the same structure.

The first heat sink 10 includes an elongated rectangular substrate 11 , four fastening portions 15 extending from a long side of the substrate 11 , and a plurality of longitudinally extending from the side of the substrate 11 and the fastening portion 15 . Hot film 13. The inner side surface of the substrate 11 is attached to the electronic component 21 of the add-on card 20. The fins 13 are equidistantly spaced to form an air flow path between adjacent fins 13. The fastening portions 15 are respectively spaced apart from the upper edge of the substrate 11 , wherein the two fastening portions 15 are located at the middle of the substrate 11 , and the other two are located at opposite ends of the substrate 11 .

Each of the fastening portions 15 includes an extension plate 151 extending obliquely upward from the long side of the substrate 11. The top end of the extension plate 151 extends downwardly from the heat sink 13 with a card plate 153, and the bottom of the extension plate 151 is the same as the card plate 153. A pivoting portion 155 extends toward the direction. A part of the fins 13 are located on the outer side of the extension plate 151. In the present invention, the pivoting portion 155 has a U-shaped roll shape that is open on one side. The two pivoting portions 155 adjacent to one end of the first heat sink 10 are fastened from the side of the first buckle 40 to the pivot portion 41 thereof, and the first buckle 40 is adjacent to the abutting portion of the first heat sink 10 . Abuts the extension plate 151 of the first heat sink 10 and the card plate 153; the two adjacent pivot portions 155 of the other end of the first heat sink 10 are fastened from the side of the second buckle 50 to the pivot portion 51 thereof. And the abutting portion 55 of the second clip 50 adjacent to the first heat sink 10 abuts against the extension plate 151 of the first heat sink 10 and the card 153. Thus, the first heat sink 10 and the first and second buckles 40, 50 are combined.

The structure of the second heat sink 30 is similar to that of the first heat sink 10, and includes an elongated rectangular substrate 31, four fastening portions 35 extending from a long side of the substrate 31, and the outer portion of the substrate 31 and the fastening portion 35. A plurality of fins 33 extending longitudinally of the sides. The inner side surface of the substrate 31 is attached to the electronic component 21 of the add-on card 20. The fins 33 are equally spaced apart to form an air flow path between the adjacent two fins 33. The fastening portions 35 are respectively located at the upper side edges of the substrate 31 and are equally spaced apart. The two fastening portions 35 are located at the center of the upper side of the substrate 31, and the other two fastening portions 35 are located at the upper ends of the upper surface of the substrate 31. The positions of the four fastening portions 35 and the fastening portions 15 of the first heat sink 10 are alternately spaced apart from each other. Set.

Each of the fastening portions 35 includes an extension plate 351 extending obliquely from the long side of the substrate 31, a card plate 353 extending obliquely downward from the top end of the extension plate 351, and a bottom plate and a card extending from the extension plate 351. The plate 353 extends one of the pivoting portions 355 in the same direction. The portion of the fins 33 is located on the outer side of the extension plate. In the present invention, the pivoting portion 355 has a U-shaped roll shape that is open on one side. The two pivoting portions 355 adjacent to one end of the second heat sink 30 are fastened from the other side of the first buckle 40 to the pivot portion 41 thereof, and the first buckle 40 is adjacent to the second heat sink 30. The portion 45 abuts the extension plate 351 of the second heat sink 30 and the card plate 353; the two adjacent pivot portions 355 of the other end of the second heat sink 30 hold the pivot from the other side of the second buckle 50 The abutting portion 55 of the second heat sink 30 abuts against the extending plate 351 of the second heat sink 30, and the card plate 353 of the second heat sink 30 elastically presses the abutting portion downward. 55. Thus, the second heat sink 30 and the first and second buckles 40, 50 are combined.

After the assembly of the heat sink assembly is completed, the pivoting portions 155 and 355 of the fastening portions 15 and 35 respectively located at opposite ends of the first and second heat sinks 10 and 30 are respectively staggered to form a communication channel (Fig. Unmarked, the pivot portions 41, 51 of the first and second clips 40, 50 are received in the channels. The abutting portions 45, 55 of the first and second clips 40, 50 press the extension plates 151, 351 of the first and second heat sinks 10, 30 from opposite sides of the first and second heat sinks 10, 30. The outermost ends of the long sides of the substrates 11 and 31 of the first and second heat sinks 10 and 30 are tightly abutted.

Referring to FIG. 4 and FIG. 5, in use, the extension plates 151 and 351 of the fastening portions 15 and 35 of the first and second heat sinks 10 and 30 are pressed from opposite sides of the additional card 20 to make the first and second portions. The extension plates 151, 351 of the heat sinks 10, 30 move toward each other to make the first and second The abutting portions 45, 55 of the clips 40, 50 are pressed close to each other while the substrates 11, 31 are moved to the opposite sides to separate the substrates 11, 31. The add-on card 20 is then placed between the substrates 11, 31 and one end of the add-on card 20 abuts against the bottom of the pivoting portions 155, 355. Finally, the first and second heat sinks 10, 30 are placed in a natural state. At this time, the abutting portions 45, 55 of the first and second buckles 40, 50 are elastically deformed to generate two reverse elastic forces to push the relative movement of the extension plates 151, 351 of the first and second heat sinks 10, 30. Thus, the substrates 11, 31 are tightly clamped to the add-on card 20 on opposite sides of the add-on card 20.

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.

10‧‧‧First radiator

11, 31‧‧‧ substrate

13, 33‧‧ ‧ heat sink

15, 35‧‧‧Deduction Department

20‧‧‧Addition card

21‧‧‧Electronic components

30‧‧‧second radiator

40‧‧‧First buckle

41, 51‧‧‧ pivot

43, 53‧‧‧ First connection

44, 54‧‧‧Second connection

45, 55‧‧‧Affiliation

50‧‧‧Second buckle

451, 551‧‧ ‧ straight section

453, 553‧‧‧ bends

Claims (9)

A heat sink assembly for dissipating heat from an electronic component of an add-on card, comprising: a first and a second heat sink on opposite sides of the add-on card; and a linear fastener connected to the first and second heat sinks, wherein the improvement is The first and second heat sinks each have a substrate and a plurality of fastening portions extending from one side of the substrate, the buckle having a pivot portion and a self-supporting pivotal connection with the first and second heat sinks The two abutting portions of the first and second heat sinks abut the two abutting portions, wherein each of the fastening portions includes an upward and outward oblique extension from the top end of the substrate One of the extension plates, the inner top of the self-extension plate is inclined downwardly and extends toward one of the additional cards, and is bent from the bottom of the extension plate to form a pivoting portion, and the pivot portion of the fastening device passes through the first portion A pivoting portion of the second heat sink, the two abutting portions respectively abut against the extension plates of the two heat sinks, and the card plates of the two heat sinks respectively elastically press the two abutting portions downward. The heat sink assembly of claim 1, wherein the fastening portions of the first and second heat sinks are staggered. The heat sink assembly of claim 1, wherein the pivoting portions of the first and second heat sinks have a U-shaped roll shape with one side open, and the extending direction is the same as the extending direction of the respective card plates. Interlaced settings. The heat sink assembly of claim 1, wherein the plurality of heat sinks are formed to extend outward from the length direction of the substrate and the extension plate, and the adjacent two heat sinks are spaced apart. The heat sink assembly of claim 1, wherein each of the abutting portions is L-shaped, has a straight segment and bends one of the bent segments inwardly from the end of the straight segment, the abutting The two straight sections are at the same height and are arranged parallel to the pivotal portion. The heat sink assembly of claim 5, wherein the buckle further comprises first and second connecting portions extending from opposite ends of the pivot portion toward the opposite sides, the two abutting portions respectively The first and second connecting portions are formed to extend toward each other. The heat sink assembly of claim 6, wherein the first and second connecting portions are at an angle to each other, and the second connecting portion is closer to the first connecting portion. The heat sink assembly of claim 1, further comprising another buckle having the same structure as the buckle, the other buckle having a pivot portion and a self-supporting pivotal connection with the two heat sinks The two abutting portions of the shaft portion extend opposite to the phase side, and the extension plates of the two heat sinks abut against the abutting portion, and the card plates of the two heat sinks elastically press the abutting portion downward. The heat sink assembly of claim 1, further comprising another buckle pivotally connected to the first and second heat sinks, the other buckle being bent from an elastic metal, having a pivotal portion pivotally connected to the two heat sinks, and first and second connecting portions extending from opposite ends of the pivoting portion toward the opposite sides and extending from the ends of the first and second connecting portions respectively The second abutting portion abuts the fastening portion of the two radiators.