CN201115145Y - Fastener for heat sink - Google Patents

Abstract

The utility model provides a radiating fin fastener, which comprises a rectangular frame body, wherein a side plate is respectively and vertically extended downwards below two opposite sides of the rectangular frame body, protruded hooks are respectively formed below two opposite inner side surfaces of the two side plates, the hooks can be respectively arranged at the lower symmetrical positions or the diagonal positions of the two side plates, one hook can be arranged on one side plate, and two hooks are arranged on the other side plate, so that the three hooks are in an isosceles triangle shape on a overlooking projection surface; the other two opposite sides of the rectangular frame are respectively provided with a convex column extending downwards below, the inner side wall of the rectangular frame is provided with a plurality of elastic rods, and a convex part is arranged below the elastic rods.

Description

Heat sink buckle

technical field

The utility model relates to a buckle for fixing a cooling fin on a chip, in particular to a structure which can ensure that the buckle is completely fastened to the chip.

Background technique

Generally, computer chipsets, including Ball Grid Array (BGA), Quad Flat Package (QFP) and Central Processing Unit (CPU), etc., will generate If the high temperature cannot be removed in time, it will affect its performance, or even burn it out. Especially, the faster the computing speed, the higher the heat generated by the chipset, the more significant the impact. Therefore, any computer host must be equipped with a cooling device to remove the heat generated by the chipset.

Generally, chipsets with faster computing speeds are designed with heat sinks. The main method is to directly install a heat sink with multiple fins on the chipset, and even set a fan on the heat sink. Most of the heat generated by the chipset during operation Part of the heat is absorbed by the heat sink, and the chipset simultaneously starts the fan to blow the heat sink to achieve heat dissipation during operation.

The earlier way of combining the heat sink on the chipset is mainly to fasten the heat sink to the chip base (SOCKET) by using a metal shrapnel, for example: Chinese Taiwan Patent Publication No. 316687. However, the metal shrapnel traditionally used to fasten the heat sink to the chipset has a complex structure, inconvenient assembly, high manufacturing cost, and easy elastic fatigue, which makes the computer easy to fall off due to vibration during transportation and unloading. Inadvertently, when the force is too large, it is easy to damage the delicate and fragile chipset; if there is no socket (SOCKET) for the combination of the chipset and the motherboard, but a BGA socket or direct soldering, there is no socket at all. The shrapnel can be snapped anywhere.

Generally, when the chipset pins are soldered on the motherboard, the height between the chipset and the motherboard is only about 0.25mm. Because the space is very limited, no manufacturer has thought about how to use the limited space to improve the chip before. Instead, stick the thermal tape on the bottom of the heat sink and stick it on the chip, or lock it on the motherboard with screws, for example: China Taiwan Patent Publication No. 257346. However, since the tape is easy to age and fall off when exposed to high temperatures, some manufacturers ask the motherboard manufacturer to reserve holes on the motherboard for fixing with screws. Although the effect is better than heat dissipation tape, it is difficult to reserve holes. , because not every circuit layout can do what you want, and not every motherboard manufacturer can match the reserved holes, and its assembly cost is high and time-consuming, so screw holes are reserved on the motherboard and the above-mentioned types of heat sinks Circulation is really difficult.

Therefore, the Taiwan application with application number 87217790 improves the above-mentioned shortcomings in the assembly of the traditional chipset and heat sink, so that it can be applied to any type of motherboard installation. The heat sink fixing seat provided by this patent is provided with a hole in the center, and side plates (four side plates in total) are respectively extended downwards on the lower end edges thereof, and clasps facing inward are respectively provided on the side plates; Let the heat sink pass through the hole of the fixing seat from bottom to top, and make the plate body of the heat sink block the edge of the hole, and then force the buckle of the fixing seat to buckle the opposite two side edges of the chipset , in order to prevent sliding between the heat sink and the fixed seat and cannot be combined and fixed.

Although the fixing seat of the aforementioned patent can combine and fix the heat sink and the chip, due to some errors in the manufacturing process of the heat sink, the bottom surface of the heat sink is not very flat, so it still cannot be completely and closely attached to the chip when it is in contact with the chip. Combined, the heat generated by the chip cannot be quickly transmitted to the heat sink, which affects the heat dissipation efficiency. Moreover, since the fixing seat of this patent is provided with side plates on all four sides, only the opposite side plates are used to buckle the two sides of the chip and block the two sides of the heat sink at the same time, and the remaining two sides straddle the heat sink. Therefore, the fins on the heat sink must be provided with grooves across both sides, so that the opposite side plates can be straddled in the grooves; however, because the four side plates of the fixing seat are all of the same height, so that When assembling the heat sink and the fixing seat, it is necessary to open a slot on the channel of the heat sink to allow the side plate to pass through, so that when the side plate with the hook buckles the two sides of the chip, it also allows the other two sides to pass through. The plate passes through the slot to completely combine the fixing seat with the heat sink. But in this way, the heat transfer area will be reduced after the heat sink is opened with slots, thus reducing the heat dissipation effect.

Application No. 880248 is the design provided by Taiwan Patent of China, which improves the above-mentioned shortcomings. Side plates 11, two protruding clasps 111 are respectively formed on the lower sides of the opposite inner sides of the two side plates, and protruding columns are respectively extended downwards on the other opposite sides of the rectangular frame body, and the inner sides of the rectangular frame body The wall is provided with a plurality of elastic rods, and the lower part of the elastic rods is provided with protrusions. When assembling, pass the fins of the heat sink through the hole of the rectangular frame from bottom to top, and then make the buckles on the opposite sides of the rectangular frame engage with the opposite edges of the chipset, and the protruding The post passes through the perforation hole drilled in advance on the heat sink, and the protrusion under the elastic rod is pressed against the heat sink to fix it. However, the disadvantage of this application is that there are four clasps arranged on the opposite sides of the rectangular frame body. Therefore, when installing, these clasps are easy to interfere with the surrounding electronic components, or due to the problem of pressure during assembly. And cause "false buckle", that is, not all clasps are fastened.

Utility model content

In order to solve the shortcomings of the buckle of the above-mentioned announcement No. 880248 patent, the utility model provides a buckle. The buckle of the utility model changes the position of the aforementioned buckle on both sides of the buckle according to the surrounding environment where the heat dissipation module is to be installed. The position is so that when the heat sink is installed on the chipset with the fastener, the problem of interference and false fastener caused by the fastener to the surrounding electronic components is avoided.

The utility model provides a radiator fastener, which comprises: a rectangular frame body, one side plate is vertically extended downwards on the opposite sides of the rectangular frame body, and two side plates are respectively formed on the lower sides of the opposite inner sides of the two side plates. Protruding clasps, protruding columns are respectively extended downwards on the opposite sides of the rectangular frame body, a plurality of elastic rods are arranged on the inner side wall of the rectangular frame body, and protrusions are arranged under the elastic rods, so that The lower sides of the two side plates are respectively provided with one clasp.

The two clasps are respectively located at symmetrical positions in the center of the two sides of the rectangular frame.

The two clasps are respectively located at diagonal positions on both sides of the rectangular frame.

The utility model further provides a heat sink fastener, comprising: a rectangular frame body, one side plate is vertically extended downwards at the lower sides of the opposite sides of the rectangular frame body, and the lower sides of the opposite inner sides of the two side plates are respectively Protruding clasps are formed, protruding columns are respectively extended downwards on the opposite sides of the rectangular frame body, a plurality of elastic rods are arranged on the inner side wall of the rectangular frame body, and protrusions are arranged under the elastic rods , one of the clasps is set on the lower side of one of the side plates, and two of the clasps are set on the lower side of the other side plate, and the three clasps are isosceles triangles on the top view projection plane of the rectangular frame distributed.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model can pre-design the distribution positions of these hooks according to the environment where various heat dissipation modules are to be installed, so as to provide selection and use, and avoid interference with other electronic components during installation;

(2) and utilizing the design of two or three clasps in total on both sides of the aforementioned rectangular frame, when the rectangular frame is assembled to the chip, each clasp can be buckled as far as possible to the edge of the chip as much as possible, so that Once a clasp fails to fasten, the installer can easily feel the shaking, so as to install it firmly again.

Description of drawings

Fig. 1 is the perspective view of the first angle of the structure of the structure of the first embodiment of the buckle of the utility model structure;

Fig. 2 is the second perspective view of the utility model structure;

Fig. 3 is a buckle with three hooks of the present invention, a schematic plan view of which the three hooks are distributed in an isosceles triangle;

Fig. 4 is a three-dimensional exploded view of an embodiment of the buckle of the present invention for combining the heat sink with the chipset;

Fig. 5 is the first plane action diagram of the buckle of the present invention for combining the heat sink with the chipset;

Fig. 6 is a schematic plan view of the combination of heat sinks and chipsets in the fastener of the present invention;

Fig. 7 is a perspective view of the structure of the second embodiment of the buckle of the present invention;

Fig. 8 is a perspective view of the structure of the third embodiment of the buckle of the present invention;

Fig. 9 is a three-dimensional view of the existing buckle structure.

In the figure,

1 rectangular frame

10 holes

11 side panels

111 clasp

12 bosses

13 elastic rod

131 protrusion

2 heat sinks

21 plate body

22 fins

23 perforations

24 slots

3 chipsets

31 edge

4 circuit boards

Detailed ways

Embodiments of the present utility model are described in more detail below in conjunction with the accompanying drawings.

As shown in Fig. 1 and Fig. 2, the heat sink fastener provided by the utility model, the structure of one embodiment includes a rectangular frame body 1, a rectangular hole 10 is formed in the center of the rectangular frame body 1, and the rectangular frame body 1 The opposite sides of the opposite side are respectively vertically extended downwards with a side plate 11, wherein a clasp 111 is set on the bottom of one side plate, and two clasps 111 are set on the bottom of the other side plate. The top view projection plane of the frame body 1 is distributed in an isosceles triangle, as shown in FIG. 3 . The lower sides of the other opposite sides of the rectangular frame are respectively provided with circular bosses 12 downwards, and the length of the bosses 12 is not shorter than the height of the above-mentioned side plate 11, and on the inner side wall of the rectangular frame. A plurality of elastic rods 13 are provided, and protrusions 131 are provided below the elastic rods 13 . In an embodiment of the present invention, the elastic rod 13 is disposed on two opposite inner sides of the rectangular frame body 1 without the side plate 11 , and the elastic rod 13 is perpendicular to the inner wall of the hole 10 .

As shown in Figure 4, in the figure, the cooling fin 2 used to match the fastener of the present utility model is provided with a rectangular plate body 21 larger than the above-mentioned hole 10, and a plurality of fins 22 are extended on the plate body 21. , the fin 22 is cut out with a groove 24 that can accommodate the width of the rectangular frame 1 of the buckle. In addition, the general chipset 3 is assembled on the circuit board 4. Since the pins of the chipset 3 welded on the circuit board 4 have a certain height, about 0.25mm, there is an appropriate height between the chipset 3 and the circuit board 4. space (0.25mm); during assembly, just pass the fins of the heat sink 2 through the hole 10 of the rectangular frame 1 from bottom to top, and make the plate body 21 of the heat sink 2 block the edge of the hole 10 , and then the hooks 111 on opposite sides of the rectangular frame 1 are forced to buckle the opposite two side edges 31 of the chipset 3 , and these protrusions 12 pass through the slots 24 pre-drilled on the heat sink 2 The perforation 23 of the elastic rod 13 can be fast assembled and fixed by pressing the protrusion 131 below the elastic rod 13 on the heat sink 2 , as shown in FIG. 5 and FIG. 6 . On the contrary, when it is desired to remove the heat sink 2 , the rectangular frame body 1 needs to be pulled up with force to make the clasp 111 disengage from the locking of the chipset 3 .

Fig. 7 is another embodiment of the utility model buckle, its structure is basically the same as that of the embodiment shown in Fig. 1 and Fig. 2, the difference is that the embodiment shown in Fig. 7 only includes two buckles Hooks 111 , the two clasps 111 are respectively arranged at symmetrical positions in the center of the two side panels of the rectangular frame body 1 .

Fig. 8 is yet another embodiment of the utility model buckle, its structure is basically the same as that of the embodiment shown in Fig. 1, Fig. 2 and Fig. 7, the difference is that Fig. 8 contains two clasps In the embodiment of 111 , the two clasps 111 combined with the side panels 11 are respectively provided at the diagonal positions of the rectangular frame body 1 .

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (4)

1. fin fastener, comprise: a rectangle framework, the relative down either side of this rectangle framework has extended side plate respectively downward vertically, the relative inner face bottom of this two side plate is formed with outstanding clasp respectively, the below of the in addition relative both sides of this rectangle framework has extended projection respectively downwards, and the madial wall of this rectangle framework is provided with a plurality of elastic rods, and the below of this elastic rod is provided with teat, it is characterized in that

The bottom of described two side plates is provided with a described clasp respectively.

2. fin fastener as claimed in claim 1 is characterized in that, described two clasps lay respectively at the central symmetrical position of these rectangle framework both sides.

3. fin fastener as claimed in claim 1 is characterized in that, described two clasps lay respectively at the diagonal position of these rectangle framework both sides.

4. fin fastener, comprise: a rectangle framework, the relative down either side of this rectangle framework has extended side plate respectively downward vertically, the relative inner face bottom of this two side plate is formed with outstanding clasp respectively, the below of the in addition relative both sides of this rectangle framework has extended projection respectively downwards, and the madial wall of this rectangle framework is provided with a plurality of elastic rods, and the below of this elastic rod is provided with teat, it is characterized in that

The bottom of described wherein side plate is provided with a described clasp, and the bottom of another side plate is provided with two described clasps, and these three clasps are isosceles triangle and distribute on the downward projection plane of described rectangle framework.

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