WO2015032086A1

WO2015032086A1 - Combined heat dissipation device

Info

Publication number: WO2015032086A1
Application number: PCT/CN2013/083123
Authority: WO
Inventors: 徐睿
Original assignee: Xu Rui
Priority date: 2013-09-09
Filing date: 2013-09-09
Publication date: 2015-03-12

Abstract

A combined heat dissipation device, comprising two fixing devices (1), a heat dissipation device (2), and two fasteners (5); a protruding hook (12) is provided on each of the two ends of the fixing device (1); the heat dissipation device (2) comprises a base (22) and a plurality of heat dissipation fins (24); a fastener (5) comprises a main body (52) and an operating body (54); a pressing portion (56) is disposed at the center of the main body (52); two ends of the pressing portion (56) are respectively bent into a flexible arm (58); one flexible arm (58) is bent and extended with a buckling arm (60) provided with a locking hole (62); the other flexible arm (58) is bent into an assembling arm (64); the operating body (54) comprises two pivoting portions (72), a locking portion (74), and an operating portion (76); one end of the two pivoting portions (72) pivotally engages the end of the assembling arm (64); the locking portion (74) is linked to the same side of the two pivoting portions (72); the operating portion (76) is formed by bending and extending from the other end of the two pivoting portions (72); when the operating body (54) is assembled to the main body (52), a groove (82) is formed between the assembling arm (64) and the locking portion (74) of the operating body (54); the two hooks (12) of the fixing devices (1) are respectively hooked into the locking holes (62) and grooves (82) of the fasteners (5), and the pressing portions (56) of the fasteners (5) press against the heat dissipation device (2). The combined heat dissipation device is easy to assemble and disassemble, and fastens stably.

Description

Description book heat sink combination technology field

The utility model relates to a heat dissipating device combination, in particular to a heat dissipating device combination which is convenient to assemble and disassemble, fast and fast, and does not need to cut heat dissipation fins to affect heat dissipation effect.

Background technique

As integrated circuits become more dense and complex, the heat generated by their electronic components will also increase dramatically, which will increase the temperature of components and affect the normal operation of components. Among them, the temperature of the central processing unit is particularly high. Therefore, a heat sink must be installed to ensure that the central processor is operating properly at the proper temperature.

A conventional heat sink is usually fastened to a circuit board by a fastener. For example, the fastener structure of the heat sink described in Taiwan Patent Application No. 90201183 includes a body, and one end of the body is inclined upward and then downward. The buckle body extends with a fastening arm, and a fastening hole is formed in the end of the fastening arm, a slot is punched out from the fastening hole, and the other end of the body is inclined upward and then bent downward to extend a hook The arm has a hooking hole at the end of the hooking arm, and a protruding piece extends outward from the middle of the hooking arm, and a slot is formed in the protruding piece. The central processing unit has a socket, and a hook is protruded outwardly from opposite ends of the socket. A recess is formed in the middle of the heat dissipating fin of the heat sink, and the body is pressed in the recess. When the clip is installed, the body is first placed in the recess, a hook of the socket is hooked into the fastening hole, and then the hook arm is pressed downward to hook the other hook of the socket to the hook. Hook in the hole. Due to the small volume of the fastening arm and the hooking arm, it is very inconvenient to directly press the hand. Therefore, it is generally necessary to borrow a screwdriver, insert it into the slot on the fastening arm and the protruding piece, and press it with a screwdriver to make it smoother. The installation and removal of the buckle is very cumbersome to operate. In addition, the use of such a buckle requires a groove in the heat sink to cut the fins and reduce the heat dissipation efficiency.

A heat sink clip as described in Taiwan Patent Application No. 89215396, which comprises a handle and a clip body. The handle has a first fastening portion, and an upper portion of the first fastening portion is provided with a through hole. A central portion of the buckle body is provided with a pressing portion, and one end of the pressing portion is bent obliquely upward After extending, a second fastening portion is vertically extended downwardly, and the other end of the pressing portion is bent obliquely upward to extend a second elastic arm, and the second elastic arm further extends a resilient portion, and the elastic portion is The two elastic arms are formed by two fork-shaped elastic pieces extending from opposite ends of the second elastic arm, and the two elastic pieces are inserted at the penetration holes of the handle to connect the handle with the buckle body. Although the buckle is more convenient to assemble and disassemble, the buckle body is only combined with the handle by two fork-shaped elastic pieces. The elastic joint structure is easy to handle when the buckle buckle pressure is large. The main body is loose and the buckle is not stable enough. In addition, when using the buckle, it is also necessary to open a groove on the heat sink to cut the heat sink fins, thereby reducing heat dissipation efficiency. Utility model content

The purpose of the utility model is to provide a heat dissipating device combination, which is convenient to assemble and disassemble, fast and fast, and does not need to cut heat dissipation fins to affect the heat dissipation effect.

In order to achieve the above object, the present invention provides a heat dissipating device assembly comprising two fixing devices, a heat dissipating device and two fasteners, and a fixing hook has a hook protruding from each end thereof, the heat dissipating device comprising a base Seat and several heat sink fins. The buckle includes a body and an operating body. The center of the body is provided with a pressing portion, and the pressing portion bends a resilient arm at each end thereof, wherein a resilient arm is bent downward to extend a locking arm, and a locking arm is disposed on the locking arm The fixing hole, the other elastic arm is bent downward to form an assembly arm. The operating body includes two pivoting portions, a locking portion and an operating portion. The two pivoting portions are disposed in parallel, one end of which is pivotally connected to the end of the mounting arm, and the locking portion is connected to the two pivots On the same side of the connecting portion, the operating portion is bent and extended from the other end of the two pivoting portions, and the operating body forms an opening between the locking portion, the operating portion and the two pivoting portions, and the assembly of the body The arm can be pivotally connected to the two pivoting portions through the opening, so that the body and the operating body are integrally connected, and a recess is formed between the mounting arm and the locking portion of the operating body, and the fixing is completed when the installation is completed. The two hooks of the device are respectively hooked into the locking holes and the grooves of the buckle, and the pressing portion of the buckle is pressed against the heat sink.

The utility model has the following beneficial effects: the buckle device can be applied to the operation portion only when the installation and the disassembly are performed, which is very convenient. The operating body of the buckle is pivotally connected to the body, and the pivoting structure is also relatively stable, and is not easy to loosen when fastened. Moreover, the fasteners of the heat dissipating device are mounted on both sides of the heat dissipating device, and the fins are not cut in the heat dissipating device to cut the heat dissipating fins, and the heat dissipating efficiency is not reduced. DRAWINGS

1 is an exploded perspective view of a heat sink assembly and a circuit board of the present invention.

2 is an exploded perspective view of the buckle of the heat sink assembly of the present invention.

3 is a perspective assembled view of the buckle of the heat sink assembly of the present invention.

4 is a perspective assembled view of the heat sink assembly and the circuit board of the present invention.

Figure 5 is a side view of Figure 4.

detailed description

Referring to Figures 1 through 5, a heat sink assembly includes two fixtures 1, a heat sink 2, and two fasteners 5. The heat sink assembly is mounted on a circuit board 92 to assist a central processor 94 in dissipating heat.

In the present embodiment, the two fixing devices 1 are respectively mounted on the two fixing frames 1 on both sides of the heat dissipating device 2, and a hook 12 is protruded outwardly from each end of the fixing frame 1.

The heat sink 2 includes a base 22 that extends upwardly from a plurality of heat sink fins 24 arranged side by side. The base 22 of the heat sink 2 projects a flange 26 toward each of its sides.

The two clips 5 are respectively attached to the two mounts 1. The clip 5 includes a body 52 and an operating body 54. The center of the body 52 is provided with a pressing portion 56. Each of the two sides of the pressing portion 56 is bent upward to extend a reinforcing arm 57. The two ends of the pressing portion 56 are bent upwardly to form a resilient arm 58. The end of one of the resilient arms 58 is bent downwardly to extend a locking arm 60. The locking arm 60 defines a locking hole 62. The end of the other elastic arm 58 is bent downwardly to form a mounting arm 64. The end of the mounting arm 64 has a pivot post 70 protruding from the two sides. The body 52 has two stopping portions 66 protruding from the two sides of the elastic arm 58 and the assembly arm 64 adjacent to the bending portion. The operating body 54 includes two pivoting portions 72 , a locking portion 74 , and an operating portion 76 . The two pivoting portions 72 are disposed in a relatively parallel manner. The two pivoting posts 70 of the corresponding body 52 are respectively disposed with a pivot hole 78. The two pivoting posts 70 are pivotally disposed in the two pivoting holes 78. The operating body 54 can be pivotally coupled to the end of the mounting arm 64. The locking portion 74 is connected to the same side of the two pivoting portions 72. The operation portion 76 is formed by bending and extending from the other end of the two pivot portions 72. The operating body 54 defines an opening 80 between the locking portion 74, the operating portion 76 and the two pivoting portions 72. The assembly arm 64 of the body 52 can be pivotally connected to the two pivoting portions 72 through the opening 80, thereby The body 52 and the operating body 54 are connected together to form a unitary body. After the body 52 and the operating body 54 are assembled, a recess 82 is formed between the inside of the mounting arm 64 and the locking portion 74 of the operating body 54. The two stoppers 66 can be stopped on both sides of the opening 80 of the operating body 54, preventing the operating body 54 from being excessively pivoted to cause loosening.

When mounting, the two fixing brackets 1 are first fixed to the circuit board 92, and then the heat sink 2 is mounted above the central processing unit 94, and then the locking hole 62 of the buckle body 52 and the fixing bracket are mounted. 1 wherein one of the hooks 12 cooperates, and the pressing portion 56 is pressed against the flange 26 of the heat sink 2, and then the operating portion 76 of the clip 5 is pressed to make another card of the holder 1 The hook 12 is received in the recess 82 to achieve assembly. Under the elastic force, the pressing portion 56 tightly presses the flange 26, so that the bottom surface of the base 22 of the heat sink 2 is closely attached to the central processing. The upper surface of the device 94. When disassembling, the operating portion 76 of the operating body 54 is only required to be depressed, so that the other hook 12 of the fixing frame 1 can be disengaged from the recess 82 of the clip 5, which is convenient for assembly and disassembly.

In addition, the operating body 54 of the buckle 5 is pivotally connected to the body 52, and the end of the elastic arm 58 of the body 52 connected to the mounting arm 64 also abuts against the upper edge of the opening 80 of the operating body 54, so that The operating body 54 can withstand a larger pressing force, so that the joint structure between the operating body 54 and the body 52 of the clip 5 is relatively stable and is not easy to loosen. Moreover, the clips 5 in the heat dissipating device combination are mounted on both sides of the heat dissipating device 2, and the heat dissipating fins 24 are not formed in the heat dissipating device 2, so that the heat dissipating efficiency is not reduced.

The above is a first embodiment of the present invention. As a second embodiment, the fixing device is a connector socket (not shown) of a central processing unit 94, and protrudes from opposite central sides of the connector socket. A hook is formed, which is identical in structure to the clip 5 shown in the first embodiment, but the clip 5 is mounted in the middle of the heat sink, and since the clip 5 of the same structure is applied, this The heat sink assembly also has the advantages of convenient assembly and disassembly and stable fastening.

As a third embodiment, the fixing device surrounds the central processing unit 94 with a back-shaped fixing frame, and a hook is protruded from opposite sides of the fixing frame, the buckle and the first The buckle 5 shown in the embodiment has the same structure, but the buckle 5 is installed in the middle of the heat dissipating device. The heat sink assembly also has the advantages of convenient assembly and disassembly and stable fastening.

Claims

1. A heat dissipation device assembly includes at least one fixing device, a heat dissipation device and at least one buckle. Each end of the fixing device is provided with a hook protruding outward. The heat dissipation device includes a base and a plurality of heat dissipation fins. The buckle includes a body and an operating body; a resisting portion is provided in the center of the body, and an elastic arm is bent at both ends of the resisting portion, and one of the elastic arms is bent downward to extend a buckle. The holding arm is provided with a locking hole, which is characterized by: the other elastic arm is bent downward to form an assembly arm; the operating body includes two pivot parts, a locking part and an operating part. The two pivot parts are relatively parallel, one end of which is movably connected to the end of the assembly arm, the locking part is connected to the same side of the two pivot parts, and the operating part is bent from the other end of the two pivot parts Extended, the operating body forms an opening between the locking part, the operating part and the two pivoting parts, and the assembly arm of the body can pass through the opening and then be pivoted to the two pivoting parts, thereby connecting the body and The operating body is connected as a whole, and a groove is formed between the assembly arm and the locking part of the operating body. When the installation is completed, the two hooks of the fixing device will be hooked into the locking hole and the recess of the buckle respectively. in the groove, and the pressing portion of the buckle presses against the heat dissipation device.

2. The heat dissipation device combination according to claim 1, characterized in that: the end of the assembly arm is protruding with a pivot post on both sides thereof, and one end of the two pivot portions of the operating body corresponds to the two pivot posts. Each column is provided with a pivot hole.

3. The heat dissipation device combination according to claim 1, characterized in that: the body is protrudingly provided with two stopper parts adjacent to the bend between the elastic arm and the assembly arm, and the two stopper parts can block the The sides of the operating body opening thereby prevent the operating body from pivoting excessively.

4. The heat dissipation device combination according to claim 1, characterized in that: a reinforcing arm is bent and extended on both sides of the resisting portion.

5. The heat dissipation device combination according to claim 1, characterized in that: the at least one fixing device is respectively installed on two fixing brackets on both sides of the heat dissipation device, and the at least one buckle is installed on the two fixing brackets respectively. Two buckles on the mounting bracket.

6. The heat dissipation device combination according to claim 5, characterized in that: the base of the heat dissipation device protrudes a flange on both sides, and the pressing parts of the two buckles respectively press against the heat dissipation device. on both flanges of the device.

7. The heat sink assembly according to claim 1, characterized in that: the at least one fixing device is a connector socket of a central processing unit, and the at least one buckle is a buckle installed in the middle of the heat sink.

8. The heat sink assembly according to claim 1, characterized in that: the at least one fixing device is a fixed frame surrounding a central processing unit, and the at least one buckle is installed in the middle of the heat sink. A buckle.

9. The heat dissipation device combination according to claim 1, characterized in that: the end of the elastic arm connected to the main body and the assembly arm is pressed against the upper edge of the opening of the operating body, so that the operating body can withstand greater buckling pressure. .