TW201515561A - Heat sink assembly - Google Patents

Abstract

A heat sink assembly includes a heat sink and a two fixing members. The heat sink includes a board and a plurality of fins perpendicularly extending up from the board. A first fixing portion and a plurality of fixing portions at opposite sides of the first fixing portion are formed at each of opposite lateral sides of the board. Each fixing member includes a bar, a bolt, and a plurality of poles. Each bar defines a first fixing hole and a plurality of second fixing holes at opposite sides of the first fixing hole. The bolts extend through the first fixing holes and the first fixing portions, to be engaged with a motherboard. The poles are respectively extended through the second fixing portions and the second fixing holes. A resilient portion is fitted about each pole and is sandwiched between the corresponding second fixing portion and the corresponding bar.

Description

Radiator combination

The invention relates to a heat sink assembly.

Conventional heat sinks are often provided with holes through the four corners, and the four lock posts are locked into the motherboard through the through holes, thereby fixing the heat sink to the motherboard. When the four lock cylinders are locked into the motherboard, the force is different, which may cause the heat sink to be in poor contact with the electronic components on the motherboard.

In view of the above, it is necessary to provide a heat sink combination that enables the heat sink to be in good contact with the electronic components on the motherboard.

A heat sink assembly includes a heat sink and two fixing members, the heat sink includes a bottom plate and a plurality of heat dissipating fins vertically disposed on a top surface of the bottom plate, and each side of the bottom plate includes a first fixed portion disposed at a middle portion And a plurality of second fixing portions disposed on two sides of the first fixing portion, each fixing member comprises a pressing rod, a locking column and a plurality of positioning rods, each pressing rod comprises a first fixing hole and a central fixing hole a plurality of second fixing holes on both sides of the first fixing hole, the two locking posts are inserted into the main board through the first fixing holes of the two pressing rods and the first fixing portion, and the positioning rods pass through the second fixing portions And a second fixing hole of the pressing rod, wherein the positioning rod sleeve is provided with an elastic member whose end portion abuts the second fixing portion and the pressing rod.

Compared with the prior art, the two locking posts of the heat sink combination are inserted into the first positioning portion in the middle of the heat sink and the middle portion of the pressing rod is inserted into the main board, and the force can be evenly distributed to the positioning rods on both sides, so that the heat sink is further Good access to the electronic components of the motherboard.

10‧‧‧ motherboard

12‧‧‧Electronic components

14‧‧‧Lock hole

20‧‧‧ radiator

30‧‧‧Fixed parts

22‧‧‧floor

24‧‧‧ Heat sink fins

26‧‧‧ Fixed Department

28‧‧‧Perforation

32‧‧‧suppressed rod

34‧‧‧Flexible parts

36‧‧‧Lock column

38‧‧‧ Positioning rod

320‧‧‧Connecting plate

322‧‧‧Slices

324‧‧‧Fixed holes

326‧‧‧through hole

360‧‧‧Cylinder

362‧‧‧ head

364‧‧‧stops

380‧‧‧ rod body

382‧‧‧Block

1 is a perspective exploded view of a preferred embodiment of a heat sink assembly of the present invention.

Figure 2 is a partial assembled view of Figure 1.

Figure 3 is a perspective assembled view of Figure 1.

Figure 4 is a cross-sectional view taken along line IV-IV of Figure 3.

Referring to FIG. 1, the heat sink assembly of the present invention is mounted on a motherboard 10. The motherboard 10 is provided with an electronic component 12 and two locking holes 14 respectively located at two sides of the electronic component 12. The heat sink assembly includes a heat sink 20 and two fixing members 30.

The heat sink 20 includes a bottom plate 22 and a plurality of heat dissipation fins 24 vertically disposed on the bottom plate 22. The two sides of the bottom plate 22 respectively protrude outwardly from the three fixing portions 26 at equal intervals. Each fixing portion 26 defines a through hole 28 .

Each fixing member 30 includes a pressing rod 32, two elastic members 34, a locking post 36 and two positioning rods 38. In the present embodiment, the elastic member 34 is a spring.

The pressing rod 32 includes a connecting plate 320 and two protrusions 322 extending outward from opposite ends of the top surface of the connecting plate 320. The connecting plate 320 defines a fixing hole 324 in a middle portion thereof. Each of the tabs 322 defines a through hole 326.

The lock cylinder 36 includes a cylinder 360 and a head portion 362 disposed at one end of the cylinder 360 and a reverse tapered portion 364. A groove is formed in the middle of the stopper portion 364 so that the stopper portion 364 can be elastically deformed through the fixing hole 324 of the connecting plate 320. The head 362 is blocked from the top surface of the connecting plate 320.

An annular blocking piece 382 is protruded outwardly from the circumferential end of each of the positioning rods 38. An elastic member 34 is sleeved on the upper portion of each of the positioning rods 38.

Referring to FIG. 2 to FIG. 4 , the bottom ends of the two positioning rods 38 are respectively inserted into the two outer ends of the heat sink 20 at the outermost ends of the heat sink 20 until the blocking piece 382 stops at the corresponding fixing portion 26 . Top surface. The top ends of the two positioning rods 38 are respectively passed through the two through holes 326 of the pressing rod 32 from bottom to top, so that the two elastic members 34 are respectively sandwiched between the corresponding blocking pieces 382 and the corresponding protruding pieces 322. The head 362 of the locking post 36 of the fixing member 30 is pressed downwardly, so that the stopping portion 364 elastically deforms through the intermediate through hole 28 until the blocking portion 364 returns to the elastic deformation to the corresponding fixing portion 26 . The bottom surface of the heat sink 20 is mounted on the bottom surface of the heat sink 20 .

Similarly, another fixing member 30 is mounted on the other side of the heat sink 20. The heat sink 20 is then placed on the electronic component 12 of the motherboard 10. The head 362 of the locking post 36 of the fixing member 30 is pressed downward to elastically deform the elastic member 34. The top end of the positioning rod 38 gradually protrudes from the corresponding through hole 326, and the stopping portion 364 elastically deforms through the main board 10 respectively. The fixing hole 14 is fixed until the blocking portion 364 returns to the bottom surface of the main board 10, and the head 362 is stopped at the top of the pressing rod 32, thereby fixing the heat sink 20 to the main board 10.

The heat sink assembly of the present invention only needs to lock the two lock posts 36, that is, only two operating points are required, which reduces operational errors. And the locking post 36 of each fixing member 30 is located in the middle of the two positioning rods 38, and the force can be evenly distributed to the positioning rods 38 on both sides, so that the heat sink 20 can better contact the electronic component 12.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

no

10‧‧‧ motherboard

12‧‧‧Electronic components

20‧‧‧ radiator

26‧‧‧ Fixed Department

28‧‧‧Perforation

34‧‧‧Flexible parts

38‧‧‧ Positioning rod

360‧‧‧Cylinder

362‧‧‧ head

364‧‧‧stops

382‧‧‧Block

Claims (5)

A heat sink assembly includes a heat sink and two fixing members, the heat sink includes a bottom plate and a plurality of heat dissipating fins vertically disposed on a top surface of the bottom plate, and each side of the bottom plate includes a first fixed portion disposed at a middle portion And a plurality of second fixing portions disposed on two sides of the first fixing portion, each fixing member comprises a pressing rod, a locking column and a plurality of positioning rods, each pressing rod comprises a first fixing hole and a central fixing hole a plurality of second fixing holes on both sides of the first fixing hole, the two locking posts are inserted into the main board through the first fixing holes of the two pressing rods and the first fixing portion, and the positioning rods pass through the second fixing portions And a second fixing hole of the pressing rod, wherein the positioning rod sleeve is provided with an elastic member whose end portion abuts the second fixing portion and the pressing rod. The heat sink assembly of claim 1, wherein the second fixing portion of each side of the bottom plate is two, and the distance between the two second fixing portions and the corresponding first fixing portion is the same, each pressing The second fixing holes of the rod are two, and the distance between the two second fixing holes to the corresponding first fixing holes is the same. The heat sink assembly of claim 1, wherein a circumferential surface of each of the positioning rods is convexly provided with a blocking piece, the blocking piece is stopped at the top of the corresponding second fixing portion, and the elastic member is placed correspondingly. Between the flap and the corresponding pressing rod. The heat sink assembly of claim 1, wherein each of the lock posts includes a cylinder and a head portion respectively disposed at one end of the cylinder and an inverted tapered portion capable of being elastically deformed. The stopper is elastically deformed through the main plate and the rear end stops on the bottom surface of the main board, and the head stops at the top of the pressing rod. The heat sink assembly of claim 1, wherein the first fixing portion and the second fixing portion are respectively provided with perforations through which the locking post or the positioning rod passes.