TWI394521B - Fan holder and heat dissipation device with the fan holder - Google Patents

Description

Fan holder and heat sink using the same

The invention relates to a fan fixing frame and a heat dissipating device using the fan fixing frame, in particular to a fan fixing frame fixed in multiple directions along the fan and a heat dissipating device using the fan fixing frame.

High-power electronic components such as computer central processing units, north bridge chips, and graphics cards generate a large amount of heat during operation. If this heat cannot be effectively dissipated, it will directly cause a sharp rise in temperature, which will seriously affect the normal operation of electronic components. . To this end, heat sinks are needed to dissipate these electronic components. Conventional heat sinks typically include a heat sink and a fan placed on one side of the heat sink that provides a forced air flow to enhance heat dissipation.

At present, the method of fixing the fan to the heat sink generally adopts a fan fixing member fixed to the heat sink, and the fan is fixed to the heat sink by fixing the fan to the heat sink. However, in the prior art, the fan fixing member is usually fixed by screwing through the screw holes provided at the four corners of the fan and then mating with the heat sink in the heat sink. This fixing method cannot ensure the fixing of the front, rear, left and right and up and down positions of the fan, that is, The stability of the fan relative to the heat sink is weak; in addition, since the fan fixing member is combined with the heat sink of the heat sink, the combination is not only unreliable, easy to loose, and the burden of the heat sink in the heat sink is increased, so that the bearing capacity of the heat sink is increased. The stability of the bond between the heat sink and the heat sink is threatened.

In view of this, it is necessary to provide a wind that is fixed in multiple directions along the fan. Fan holder and its heat sink.

A heat dissipating device for dissipating heat to an electronic component, comprising: a base attached to the electronic component and a fixing frame coupled to the base; and a fan fixed to the fixing frame, the fixing frame comprises a body, opposite to the two sides of the body One side of the side arm is bent to extend, and each side arm is convexly provided with a bump that is caught in the fan, and the side arms are elastically pressed against the body and clamp the fan therein, and the opposite side of the body is disposed There is a clamping fan in one of the pair of clamping portions, each side arm includes a connecting portion bent from the end of the body and a clamping portion of the clamping fan extending upward from the end of the connecting portion, each side arm There is a space between the connecting portion and the body. The body of the fixing frame is provided with a fixing hole. The connecting portion is provided with a hole at a position corresponding to the fixing hole. The heat dissipating device further includes a fixing component, and the fixing The piece sequentially passes through the through hole of the connecting portion and the fixing hole of the body to fix the fixing frame to the base.

A fixing frame for fixing a fan, comprising a body, the body is bent inwardly on opposite sides to extend a pair of side arms, the side arms elastically press against the body and clamp the fan therein, each side arm The utility model is provided with a bump for engaging the fan, and the opposite side of the body is provided with a pair of clamping fans on one of the clamping portions, each side arm includes a connecting portion bent from the end of the body and the end of the connecting portion a clamping portion of the extended clamping fan, a spacing between the connecting portion of each side arm and the body, a fixing hole is disposed on the body of the fixing frame, and the connecting portion corresponds to the position of the fixing hole A through hole is provided, and the heat dissipating device further includes a fixing member, and the fixing member sequentially passes through the through hole of the connecting portion and the fixing hole of the body.

Compared with the prior art, the present invention is stuck due to the bump of the side arm of the fixing frame In the fan, the clamping portion and the side arm simultaneously clamp the fan therein, that is, fix it along the front, rear, left and right and up and down directions of the fan, and ensure that the fan is firmly fixed on the base when the fixing frame is not matched with the heat sink group.

As shown in FIG. 1 and FIG. 2, a fan holder and a heat dissipating device thereof are mounted on a circuit board (not shown) for dissipating electronic components on the circuit board. The heat generated is not shown. The heat dissipating device includes a fixing frame 10, a fan 20 mounted on the fixing frame 10, a base 30 for fixing the fixing frame 10, and a pair of fins disposed on the base 30 and opposite sides of the fixing frame 10. 40 (as shown in Figure 5).

Referring to FIG. 3 together, the fixing frame 10 includes a body 12 having a substantially rectangular plate shape. The body 12 is provided with four fixing holes 120 at a position close to the four corners. The two relatively long sides of the body 12 are bent inwardly to extend a pair of side arms 14 that elastically compress the clamping fan 20 on the body 12 of the mounting frame 10, the side arms 14 including the body 12 The second side of the relatively long side is horizontally bent inwardly to the connecting portion 140 and the pair of latching portions 142 extending vertically upward from the end of the connecting portion 140. The connecting portions 140 are elastically compressed and close to the body 10 of the mounting frame 10 . The connecting portions 140 are parallel to the body 12 and spaced apart from the body 12 . Each connecting portion 140 is provided with a fixing hole 120 corresponding to the body 12 near the two ends. The through hole 1400 is provided for the fixing member 80 to pass through the through hole 1400 and the fixing hole 120 in order to fix the fixing frame 10 on the base 30. The catch portion 142 is a sheet body having a pair of hump-shaped free ends and an arc-shaped edge at the two free ends. The inner side of each of the free ends is convexly disposed on one of the bumps 1420 of the fan 20, and a recess 1422 is formed on the outer side of the free end 140 of the bump 1420. The recess 1422 corresponds to the joint. The through hole 1400 of the joint 140 is disposed. The holding portion 142 is perpendicular to the main body 12 and is disposed at a distance from the main body 12 so that the fixing portion 80 of the main body 12 of the fixing frame 10 is fixed to the base 30, and the engaging portion 142 and the connecting portion 140 are simultaneously fixed. The member 80 is in close proximity to the body 12 of the holder 10 and the surface of the fan 20 so as to clamp the fan 20 between the two parallel holding portions 142 of the two side arms 14.

A pair of clamping portions 18 are vertically disposed at edges of the opposite short sides of the body 12, and the clamping portion 18 is located between the two opposite short sides of the body 12 and the two holding portions 142 of the side arms 14. The clamping portion 18 has a rectangular plate body, and two opposite sides of each clamping portion 18 extend horizontally inwardly to form a pair of baffles 180, and the baffles 180 are parallel to each other and perpendicular to the body 12. The baffle 180 is located between the two side arms 14. Each of the baffles 180 has a substantially triangular shape, and its height gradually decreases toward the intermediate position along the long side of the body 12, facilitating insertion into the fan 20 to cooperate therewith.

The fan 20 has a generally square shape and includes two left and right flat plates (not labeled) with openings. A four-corner edge of each of the flat plates extends horizontally outwardly from a lug 22, and a central portion of the lug 22 is provided with a buckle hole 220 for engaging the bump 1420 of the retaining portion 142 of the fixing frame 10 to fix the fan 20 to the fixing member. 10 on. The two lugs 22 at each corner of the two flat plates of the fan 20 are parallel to each other, and the two lugs 22 are provided with a card slot 24 for inserting the baffle 180 of the clamping portion 18 of the fixing frame 10 into the fixing frame 10 The clamping portion 18 abuts against the side wall between the upper and lower lugs 22 of the fan 20.

Referring to FIG. 3 to FIG. 5 , when the heat dissipating device is assembled, first, the fixing frame 10 is placed on the base 30 and between the two fin groups 40 , and the fan 20 is received in the side arm 14 and the clamping portion 18 of the fixing frame 10 . In the space formed, the baffle 180 of the clamping portion 18 is placed on the card slot 24 formed by the lug 22 at the bottom of the fan 20 Inside, at this time, one of the fans 20 is clamped between the two clamping portions 18 with respect to the front and rear sides. Then, the four fixing members 80 are sequentially passed through the through holes 1400 of the connecting portion 140 of the side arm 14 of the fixing frame 10, and the fixing holes 120 of the body 12 are screwed into the screw holes 32 provided at the four corners of the base 30, and finally the fixing frame is fixed. 10 is screwed onto the base 30. During the tightening process of the fixing member 80, the side arm 14 of the fixing frame 10 gradually approaches the body 12 of the fixing frame 10 by the downward force of the fixing member 80, that is, the connecting portion 140 of the side arm 14 is close to the body 12, and the card is simultaneously The holding portion 142 is adjacent to one of the left and right side edges of the fan 20, and the bump 1420 of the holding portion 142 is tightly engaged in the buttonhole 220 of the lug 22 at the bottom of the fan 20. The left and right sides of the fan 20 are side arms 14 The catch portion 142 is tightly sandwiched therebetween. Since the clamping portion 18 of the fixing frame 10 is clamped on the front and rear sides of the fan 20, the horizontal displacement of the fan 20 in the fixing frame 10 along the front and rear sides thereof is avoided; and the clamping portion 18 of the fixing frame 10 is blocked. The plate 180 is placed between each pair of lugs 22 at the bottom of the fan 20, and the clamping portion 18 of the side arm 14 is clamped to the left and right plates of the fan 20 (see FIG. 2) to prevent the fan 20 from being inside the fixed frame 10. The left and right sides of the fan 20 are horizontally displaced; the bump 1400 on the latching portion 142 of the side arm 14 of the mounting frame 10 is inserted into the buttonhole 220 of the bottom lug 22 of the fan 20 to prevent the fan 20 from being perpendicular to the body in the fixing frame 10 Move in the direction of 12 up and down.

In the present invention, the fixing frame 10 can be fixed along the front, rear, left and right and upper and lower positions of the fan 20 to enhance the stability of the fan 20 relative to the fixing frame 10, so that the structure of the entire heat dissipating device is more stable. In addition, the fixing frame 10 is fixed to the base 30 by screwing the screw 80 to the base 30, and does not cooperate with the heat sink group 40 on the base 30, thereby not burdening the heat sink 40 and simplifying the installation process of the fixing frame 10. At the same time, due to the connection portion 140 and the bottom of the side arm 14 A gap is provided between the seats 30, and the force generated when the fixing member 80 is locked downward is decomposed by the gap between the connecting portion 140 and the base 30, so that the fan 20 is fixed by pressing the decomposing force from the both sides to the middle, so that the fan 20 is fixed. The fan 20 is more firmly fixed to the base 30.

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‧‧‧ Fixing frame

20‧‧‧Fan

30‧‧‧Base

120‧‧‧Fixed holes

12‧‧‧Ontology

40‧‧‧ Heat sink set

14‧‧‧ side arm

140‧‧‧Connecting Department

142‧‧‧Cars Department

1400‧‧‧Perforation

80‧‧‧Fixed parts

1420‧‧‧ bumps

1422‧‧‧ Groove

18‧‧‧Clamping Department

180‧‧ ‧ baffle

22‧‧‧ lugs

220‧‧‧ buttonhole

24‧‧‧ card slot

32‧‧‧ screw holes

1 is a perspective view of a fan holder of the present invention.

2 is a combination view of a fan holder of the present invention and a base and a fan.

Figure 3 is an exploded view of Figure 2.

Figure 4 is a side cross-sectional view of Figure 2.

Figure 5 is a combination view of a heat sink using the fan mount of the present invention.

10‧‧‧ Fixing frame

12‧‧‧Ontology

14‧‧‧ side arm

142‧‧‧Cars Department

1422‧‧‧ Groove

1420‧‧‧ bumps

120‧‧‧Fixed holes

180‧‧ ‧ baffle

140‧‧‧Connecting Department

1400‧‧‧Perforation

18‧‧‧Clamping Department

Claims (8)

A heat dissipating device for dissipating heat to an electronic component, comprising: a base attached to the electronic component and a fixing bracket combined with the base and a fan fixed on the fixing frame, wherein the fixing frame comprises a body One pair of side arms extending from opposite sides of the body, each side arm is convexly provided with a bump that is caught in the fan, and the side arms elastically press against the body and clamp the fan therein, the body The two opposite sides are provided with a pair of clamping fans, wherein each side arm includes a connecting portion bent from the end of the body and a clamping portion of the clamping fan extending upward from the end of the connecting portion. There is a space between the connecting portion of each of the arms and the body. The body of the fixing frame is provided with a fixing hole. The connecting portion is provided with a hole at a position corresponding to the fixing hole, and the heat dissipating device further comprises a fixing. And the fixing member sequentially passes through the through hole of the connecting portion and the fixing hole of the body to fix the fixing frame to the base. The heat dissipating device of claim 1, wherein the bumps are disposed on an inner side surface of the latching portion. The heat dissipating device of claim 1, wherein the fan extends outwardly from opposite sides thereof to form a pair of lugs, and the clamping portion of the fixing bracket extends from both sides of the pair of lugs at the bottom of the fan. One of the pair of baffles. The heat dissipating device according to any one of claims 1 to 3, further comprising two fin sets disposed on the base and located on both sides of the fan. The heat dissipating device of claim 4, wherein the fixing hole of the body of the fixing frame, the perforation of the connecting portion, and the fixing member are plural. The fixing frame for fixing a fan is improved in that the fixing frame comprises a body, and the body is bent inwardly on opposite sides to extend a pair of side arms, and the side arms elastically press against the body and clamp the fan to Among them, each side arm is provided The card is inserted into the bump of the fan, and the opposite side of the body is provided with a pair of clamping fans, wherein each side arm includes a connecting portion extending from the end of the body and extending upward from the end of the connecting portion. a clamping portion of the fan is disposed therein, and a spacing is formed between the connecting portion of each of the side arms and the body, and a fixing hole is disposed on the body of the fixing frame, and the connecting portion is disposed corresponding to the position of the fixing hole The perforating device further includes a fixing member, and the fixing member sequentially passes through the through hole of the connecting portion and the fixing hole of the body. The holder of claim 6, wherein the bump is disposed on an inner side surface of the holding portion. The fixing frame according to claim 6, wherein each of the clamping portions extends from a pair of baffles inserted into the fan.