CN2891606Y - Heat sink device - Google Patents

Abstract

A heat dissipation device comprises a heat sink and a fastener. The buckle comprises a fixed seat, a first locking device and a second locking device which are respectively arranged at two opposite ends of the fixed seat. The fixing seat of the buckle is arranged at the bottom of the base of the radiator. One end of the fixed seat is bent to extend a first support arm and two pivoting plates, and the other end is bent to extend a second support arm and two clamping hooks; the first locking device comprises an operating part and a buckle part, wherein the operating part is movably pivoted on the fixed seat, and the buckle part is movably pivoted on the operating part and is provided with a buckle hole; the fastening part of the second locking device is provided with three fastening holes and a locking hole, and the fastening hook of the fixed seat is correspondingly fastened in the locking hole. The fastening holes of the two locking devices are respectively matched with the protruding hooks at two ends of a fixed support so as to lock the radiator on the fixed support. The buckle is convenient to assemble and disassemble, and the heat radiation performance of the radiator cannot be influenced.

Description

heat sink

technical field

The utility model relates to a heat dissipation device, in particular to a heat dissipation device with convenient assembly and disassembly and good heat dissipation effect.

Background technique

Generally, a central processing unit (CPU) in a current electronic device such as a computer emits heat during operation. As the processing speed of the central processing unit increases, the heat emitted by it also increases. Therefore, it is usually necessary to install a cooling device on the central processing unit to dissipate heat.

As shown in U.S. Patent No. 5,638,258, the central processing unit radiator needs to cut the cooling fins when the fastener of this radiator is installed, and a groove is opened in the center of the radiator, and the fastener is installed in the concave. in the slot. It will lead to a reduction in the heat dissipation area of the radiator and a decrease in heat dissipation capacity.

Another example is the cooling device shown in Taiwan Patent Application No. 94201636. The buckle of this cooling device is installed between the fan and the radiator, which will hinder the flow of the airflow blown by the fan and reduce the heat dissipation capacity of the radiator.

For example, the fastener of the radiator shown in Taiwan Patent Application No. 92211746, the fastener is locked to the bottom of the radiator with screws, and the fastener will not adversely affect the heat dissipation capability of the radiator. However, the use of this buckle needs to be matched with a corresponding base installed on the back of the circuit board to fix the heat sink to the circuit board. However, the existing AMD-based system cannot be equipped with a base. The system design standard is based on the CPU A fixing bracket is arranged on the periphery of the bracket, and a plurality of protruding hooks protrude from both ends of the fixing bracket. Therefore, it is necessary to improve the buckle so that it is suitable for use in existing AMD architecture systems.

Contents of the invention

The main purpose of the utility model is to provide a heat dissipation device with convenient assembly and disassembly and good heat dissipation effect.

In order to achieve the above object, the utility model provides a heat dissipation device, the heat dissipation device includes a radiator and a fastener, the radiator includes a base and a plurality of cooling fins arranged above the base, the fastener includes A fixing seat, a first locking device and a second locking device respectively mounted on opposite ends of the fixing seat, the fixing seat of the buckle is installed at the bottom of the base of the radiator; one end of the fixing seat is first upward A first arm is bent and extended, and the end of the first arm is bent outward to form two pivot plates. The end of the support arm is bent outward to extend two hooks; the first locking device includes an operating part and a buckle part, and the operating part includes a handle and two pivot plates bent from the other end of the handle The two pivotal plates of the operating part are pivotally connected to the two pivotal plates of the fixed base in corresponding activities; One end of the buckle arm is provided with a buckle hole, and the two pivotal plates of the buckle are pivotally connected to the two pivotal plates of the operating member in corresponding activities; the second locking device includes a buckle portion, the The buckle part is provided with three buckle holes and a lock hole, and the hook of the fixing base is correspondingly set in the lock hole of the second locking device, so that the second locking device is installed on the fixing base.

A fixing bracket is arranged below the cooling device, and a plurality of protruding hooks protrude from both ends of the fixing bracket, and the snap holes of the first locking device and the snap holes of the second locking device are respectively connected with the fixing bracket The protruding hooks at both ends cooperate to fix the heat sink on the fixing bracket.

The utility model has the following beneficial effects: the fastener of the utility model only needs to pull the handle of the first locking device upward to lock the radiator to the fixed bracket, and pull the handle downward to dissipate the heat The radiator is removed from the fixed bracket, which is very convenient to assemble and disassemble; in addition, the installation method of the buckle does not need to cut the cooling fins on the radiator, nor will it block the airflow of the fan from blowing to the radiator, so the radiator has better performance. cooling effect.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the heat dissipation device of the present invention.

Fig. 2 is a three-dimensional exploded view of another angle of the heat dissipation device of the present invention.

Fig. 3 is a three-dimensional exploded view of the buckle of the heat dissipation device of the present invention.

Fig. 4 is a three-dimensional assembled view of the buckle of the heat dissipation device of the present invention.

Fig. 5 is a three-dimensional assembled view of the heat dissipation device of the present invention.

Detailed ways

Please refer to Fig. 1 to Fig. 5, a kind of cooling device is used for dissipating heat to a central processing unit (CPU) 92, and this CPU92 is installed on a circuit board 94, and a fixed bracket 96 is installed around this CPU92, and this fixed bracket 96 is A rectangular frame body is provided with an opening 962 in the center, and a plurality of protruding hooks 98 protrude from opposite ends.

The heat dissipation device includes a radiator 1 , a fastener 3 and a fan 5 .

The heat sink 1 includes a base 12 and a plurality of cooling fins 14 extending upward from the base 12 . A protruding block 124 protrudes downward from the center of the bottom of the base 12 , and four screw holes 122 are defined around the protruding block 124 .

The buckle 3 is installed on the bottom of the base 12 of the radiator 1, and includes a rectangular fixing base 32, a first locking device 34 installed on one end of the fixing base 32, and a first locking device 34 installed on the opposite end of the fixing base 32. A second locking device 36.

A square receiving hole 322 is defined in the center of the fixing base 32 , and a through hole 324 is defined in each of the four corners. The protrusion 124 of the heat sink 1 can be passed through and accommodated in the accommodating hole 322 of the fixing base 32, and four bolts (not shown) respectively pass through the through holes 324 and then screw-lock to the bottom of the base 12 correspondingly. The buckle 3 can be firmly installed on the bottom of the base 12 of the radiator 1 in the screw hole 122 of the radiator 1 . One end of the fixing seat 32 is bent upwards to extend a first arm 326 vertically, and two pivot plates 328 are bent outwards from the end of the first arm 326 perpendicular to the first arm 326 . A pivot hole 330 is correspondingly formed on the two pivot plates 328 . The upper edges of the two pivot plates 328 are respectively provided with an engaging slot 332 . The opposite end of the fixing base 32 is bent upwards to extend a second arm 334 , and the end of the second arm 334 is further bent outwards to extend two hooks 336 . A gap 338 is defined between the two hooks 336 , and a slot 339 is defined on an outer edge of each hook 336 .

The first locking device 34 includes an operating part 342 and a locking part 344 . The operating member 342 includes a handle 3422 and two pivoting plates 3424 bent from two side edges of the handle 3422 toward the same direction. A first pivot hole 3426 , a second pivot hole 3428 and a protruding point 3430 are respectively defined on the two pivot plates 3424 . A pivot 6 is correspondingly installed between the two second pivot holes 3428 of the first locking device 34 and the two pivot holes 330 of the fixing base 32 , so that the operating member 342 is movably pivoted to the fixing base 32 superior. The locking member 344 includes a locking arm 3442 and two pivoting pieces 3444 perpendicularly bent and extending from two side edges of the other end of the locking arm 3442 toward the same side. One end of the locking arm 3442 defines a locking hole 3443 . A pivot hole 3446 is also formed on each of the two pivot pieces 3444 . The other pivot 7 is correspondingly set between the two pivot holes 3446 of the buckle 344 and the two first pivot holes 3426 of the operation member 342 , so that the buckle 344 is movably pivoted to the operation member 342 superior.

The second locking device 36 includes an operating portion 362 and a locking portion 364 vertically bent and extended from the other end of the operating portion 362 . The buckle portion 364 is provided with three buckle holes 3642 arranged side by side and a lock hole 3644 above the middle buckle hole 3642 . The two hooks 336 of the fixing base 32 are correspondingly engaged in the lock holes 3644 of the second locking device 36 , wherein the two side edges of the lock holes 3644 are correspondingly engaged in the slots 339 of the two hooks 336 , and press the two hooks 336 slightly inwardly to generate a certain resilience force so that the two hooks 336 are tightly locked in the lock hole 3644, so that the second locking device 36 is installed on the fixing seat 32 on.

The top of the cooling fins 14 of the radiator 1 is fixed with a fan fixing frame 8, and the fan 5 is installed and fixed on the fan fixing frame 8 with four fixing bolts.

When assembling, use four bolts to pass through the through holes 324 of the fixing seat 32 respectively, and then screw them into the screw holes 122 at the bottom of the base 12, so that the buckle 3 is firmly installed on the base of the radiator 1. the bottom of the seat 12; then the buckle hole 3642 of the buckle part 364 of the second locking device 36 is correspondingly buckled on the protruding hook 98 at one end of the fixed bracket 96; The buckle hole 3443 is correspondingly installed on the protruding hook 98 at the other end of the fixing bracket 96; On the protruding hook 98 , the fixing seat 32 pulls the heat sink 1 downward so that the protrusion 124 of the base 12 is closely attached to the top surface of the CPU 92 . At this time, the two protruding points 3430 on the first locking device 34 are correspondingly snapped into the two slots 332 of the fixing base 32 , so as to prevent the operating member 342 from being forced to rotate downwards and loosen.

The buckle 3 of the utility model only needs to pull the handle 3422 of the first locking device 34 upwards to lock the radiator 1 to the fixed bracket 96, and pull the handle 3422 downward to lock the radiator 1 It is very convenient to assemble and disassemble from the fixed bracket 96; in addition, the installation method of the fastener 3 does not need to cut the cooling fins 14 on the radiator 1, nor can it block the air flow of the fan 5 from blowing to the radiator 1, so The radiator 1 has better heat dissipation effect.

Claims (10)

1. A heat dissipation device includes a radiator and a fastener, the radiator includes a base and a plurality of cooling fins arranged above the base, and is characterized in that: The buckle includes a fixing seat, a first locking device and a second locking device respectively mounted on opposite ends of the fixing seat, and the fixing seat of the buckle is installed at the bottom of the base of the radiator; One end of the fixing seat is bent upwards to extend a first arm, and the end of the first arm is bent outwards to form two pivot plates, and the opposite end of the fixing seat is also bent upwards to extend a first arm. Two arms, the end of the second arm is bent outwards to extend at least one hook; The first locking device includes an operating part and a buckle part. The operating part includes a handle and two pivot plates bent from the other end of the handle. The two pivot plates of the operating part are correspondingly movably pivoted to the The two pivot plates of the fixing seat; the buckle piece includes a buckle arm and two pivot pieces bent and extended from the other end of the buckle arm, one end of the buckle arm is provided with a buckle hole, the The two pivotal plates of the buckle are pivotally connected to the two pivotal plates of the operating member in corresponding activities; The second locking device includes a buckle part, and the buckle part is provided with at least one buckle hole and a lock hole, and the hook of the fixing seat is correspondingly locked in the lock hole of the second locking device. Therefore, the second locking device is installed on the fixing base. 2. The heat dissipation device according to claim 1, characterized in that: a protruding block protrudes downward from the bottom of the base, and a number of screw holes are provided on the periphery of the protruding block, and a center of the fixing base is provided with a The four corners of the fixed seat are provided with a number of through holes for the protrusion to pass through. Use a number of bolts to pass through the through holes and then screw them into the screw holes at the bottom of the base to lock the buckle. tool mounts to the bottom of the heatsink base. 3. The heat dissipation device according to claim 1, characterized in that: the two sides of the end of the first arm are perpendicular to the first arm to bend out the above-mentioned pivot plate, and the operating part is connected from the handle The two side edges of the other end are bent to the same direction to form the two above-mentioned pivot plates, and the buckle member is vertically bent and extended to the same side from the two side edges of the other end of the buckle arm to extend the two above-mentioned pivot plates . 4. The heat dissipation device according to claim 1 or 3, characterized in that: each of the two pivot plates of the fixing seat is provided with a pivot hole, and each of the two pivot plates of the operating part of the first locking device is provided with a pivot hole. A first pivot hole and a second pivot hole are provided, a pivot hole is respectively provided on the two pivot pieces of the buckle part of the first locking device, and a pivot is correspondingly passed through the second pivot hole of the operating part and the pivot hole of the fixed seat, so that the operating piece is movably pivoted to the fixed seat, and the other pivot is correspondingly passed through the pivot hole of the buckle and the first pivot hole of the operating piece between, so that the buckle is movably pivoted to the operating member. 5. The heat dissipation device according to claim 1 or 3, characterized in that: the upper edge of the two pivot plates of the fixing seat is respectively provided with a slot, and the two pivot plates of the operating part of the first locking device Each is provided with a raised point, and when the buckle is in the locked state, the raised point is correspondingly locked in the slot so as to prevent the operating member from turning downward. 6. The heat dissipation device according to claim 1, characterized in that: the end of the second arm is bent outwards to extend two above-mentioned hooks, and an outer edge of each hook is provided with a slot, the first The two side edges of the locking holes of the two locking devices are correspondingly engaged in the engaging grooves of the two engaging hooks. 7. The heat dissipation device according to claim 6, wherein a gap is provided between the two hooks, so that there is a certain elastic force between the two hooks when the two hooks are pressed from outside to inside. 8. The heat dissipation device according to claim 1, characterized in that: the buckle part of the second locking device is provided with three above-mentioned buckle holes side by side, and the lock hole is set in the buckle hole in the middle position. above. 9. The heat dissipation device according to claim 1, wherein the second locking device further comprises an operation part, and the buckle part is bent and extended from the other end of the operation part. 10. The heat dissipation device according to claim 1, characterized in that: a fixed bracket is provided under the heat dissipation device, a plurality of protruding hooks protrude from both ends of the fixed bracket, and the buckle holes of the first locking device And the buckle holes of the second locking device respectively match with the protruding hooks at both ends of the fixing bracket, so as to fix the heat sink on the fixing bracket.

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