WO2015180031A1

WO2015180031A1 - Heat dissipating apparatus

Info

Publication number: WO2015180031A1
Application number: PCT/CN2014/078500
Authority: WO
Inventors: 钟燕清
Original assignee: 钟燕清
Priority date: 2014-05-27
Filing date: 2014-05-27
Publication date: 2015-12-03

Abstract

A heat dissipating apparatus. The heat dissipating apparatus comprises a radiator and a fastener. The radiator comprises a base and a plurality of heat dissipating fins. The fastener comprises a body, an operating rod, and a movable rod. The body is provided with a pressing portion. One end of the pressing portion bends and extends to form a fastening portion, and the other end of the pressing portion is provided with a through hole. One end of the operating rod is provided with two eccentric wheels, and the other end of the operating rod is provided with a handle. One end of the movable rod is provided with a fastening hole, and the other end of the movable rod passes through the through hole of the pressing portion and is pivotally connected to the eccentric wheels of the operating rod. An elastic pad is disposed below the pressing portion of the fastener. Two ends of the main body of the elastic pad each bend downwards to form a fixing arm and bend upwards to form an elastic supporting arm. The main body is pressed on the top of the plurality of heat dissipating fins. The two fixing arms are correspondingly fastened between two neighboring heat dissipating fins. The fastener of the heat dissipating apparatus has a simple structure, is convenient to assemble and disassemble, and is unlikely to cause deformation of the heat dissipating fins.

Description

Heat sink device technical field

The present invention relates to a heat dissipating device, and more particularly to a heat dissipating device which is simple in structure, convenient in assembly and disassembly, and which is not easily deformed by heat dissipating fins. Background technique

Generally, the electronic components on the motherboard of today's computer systems emit heat during operation. In order to ensure that these electronic components work normally and stably, it is usually necessary to add a heat sink to these electronic components for heat dissipation.

For example, the two sets of fasteners shown in the Taiwan Patent Application No. 92215377 are externally attached to the two sides of a fan fixing frame, and each of the fastening sets includes a fixing piece hooked on the outside of the fan fixing frame, and one of the fixing pieces is opened. The perforation has three fastening holes at the lower end of each of the fastening pieces, and a pivot hole is formed at the upper end. After the upper end of the locking piece passes through the through hole, a pivoting hole is pivotally connected to an operating lever with an eccentric wheel. The lever can be pressed against the heat sink. The fastening structure needs to use two fastener groups at the same time to cooperate with the fan fixing frame, and the structure is relatively complicated, and the application range is narrow.

Further, the buckle shown in Taiwan Patent Application No. 92,230,332 includes a pressing rod directly pressed against the heat sink, a locking piece and an operating rod, and one end of the pressing rod is bent downward and set a buckle hole is fastened to a hook of the fixed base, and the other end of the pressing rod is provided with two through holes; the lower end of the buckle piece is provided with three buckle holes to fasten the card on the other side of the fixed base On the hook, the upper end is provided with two inserts, and the two inserts of the snap tab correspond to the perforations of the pressing rod, and then are pivotally connected to the operating rod, and the operating rod is provided with an eccentric block. The operating lever can press the eccentric block to press the pressing rod, and press the heat sink to the fixed base. The use of such a clip requires that the heat sink fins in the middle of the heat sink be completely removed so that the pressure bar can be placed against the base of the heat sink. However, this will cause the heat dissipation area of the heat sink to be greatly reduced, resulting in a decrease in heat dissipation efficiency. If the pressing rod is directly pressed against the heat radiating fin of the heat sink, the heat radiating fin is deformed, and the wind resistance is increased to reduce the heat dissipation efficiency. Summary of the invention

The main object of the present invention is to provide a heat dissipating device which is simple in structure, convenient in assembly and disassembly, and does not easily cause deformation of the fins.

In order to achieve the above object, the present invention provides a heat dissipating device including a heat sink and a buckle, the heat sink including a base and a plurality of heat dissipating fins protruding upward from the base, the clip includes a a body, an operating rod and a movable rod, the body has a pressing portion, and one end of the pressing portion is bent to extend a buckle portion, and the buckle portion is provided with a plurality of fastening holes, and the pressing portion is further One end of the operating rod is provided with at least one eccentric wheel, and the other end of the operating rod is provided with a handle; the movable rod has a fastening hole at one end thereof, and the other end of the movable rod is pivoted through the perforation of the pressing portion. The eccentric wheel of the operating rod is characterized in that: an elastic spacer is further disposed under the pressing portion of the buckle, the elastic gasket has a main body, and both ends of the main body are bent downwardly a fixed arm is also bent upwardly to extend an elastic support arm, the main body is pressed on the top of the plurality of heat dissipation fins, and the two fixed arms are respectively correspondingly disposed between the two adjacent heat dissipation fins; Two of the pressure parts Each of the two elastic support arms of the elastic spacer is received in the accommodating groove so as to be slid into the accommodating groove. The operating lever is integrally bent, and one end of one end of the one end is bent in the same direction to extend an eccentric wheel, and the two eccentric wheels are respectively provided with a pivot hole. The other end of the movable rod is correspondingly provided with a pivot hole, and the pivot rod is correspondingly pivoted through the pivot hole and the pivot hole to pivot the movable rod between the two eccentric wheels.

Further, an opening is formed in each of the fixing arms, and a protruding piece protrudes from the lower side of the opening, and the heat dissipating fin of the heat sink is provided with a buckle for the protruding piece of the buckle corresponding to the locking hole.

Further, an opening is defined in each of the fixing arms, and a protrusion is protruded from a lower side of the opening, and an opening of the fixing arm extends upward to both ends of the main body, and an upper side of the opening is bent upward The elastic support arm is extended.

Further, the edges of the two eccentric wheels are vertically bent to extend an abutment plate.

Further, the heat sink is mounted on a fixed base, and the opposite sides of the fixed base are respectively provided with a plurality of hooks, and the plurality of buckle holes on the buckle body are correspondingly buckled on the hooks on the side of the fixed base And the button hole of the movable rod corresponds to the hook of the other side of the fixed base.

The invention has the following beneficial effects: The buckle structure of the invention is relatively simple, and is installed and disassembled It is very convenient to use when unloading the radiator. The elastic gasket of the buckle can evenly distribute the pressure applied by the pressing part to each heat-dissipating fin, which can avoid deformation of the heat-dissipating fin.

DRAWINGS

1 is an exploded perspective view of a fixed base, a heat sink and a buckle of the present invention.

Figure 2 is an exploded perspective view of the buckle of the present invention.

Figure 3 is a perspective assembled view of the buckle of the present invention.

Fig. 4 is a perspective assembled view of the heat sink of the present invention when the buckle is relaxed.

Fig. 5 is a perspective assembled view of the heat sink of the present invention when the clip is pressed.

detailed description

Referring to Figures 1 and 5, a heat sink includes a fixed base 1, a heat sink 2 and a clip 3.

The fixing base 1 is provided with four side walls, wherein the front side wall 14 is provided with three hooks 16, and the opposite rear side walls 12 are correspondingly provided with three hooks 16.

The heat sink 2 includes a base 22 and a plurality of fins 24 projecting upwardly from the base 22. A recess 26 is defined in the middle of the top surface of the heat dissipation fins 24, and a fastening hole 242 is defined in the lower side of the recess 26.

The clip 3 includes a body 32, an operating lever 34, a movable lever 36 and a resilient spacer 38. The body 32 has a pressing portion 322 corresponding to the groove of the heat sink 2

26, the one end of the pressing portion 322 is bent to extend a buckle portion 324, and the buckle portion 324 is provided with three buckles corresponding to the hooks 16 fastened on the rear side wall 12 of the fixed base 1. Hole 3242. The other end of the pressing portion 322 is provided with a through hole 326. The two sides of the pressing portion 322 are bent downward to extend a side wall 3222. The pressing portion 322 and the two side walls 3222 are surrounded to form a receiving groove 3224.

The operating lever 34 is integrally bent. One end of one end of the operating rod 34 is bent in the same direction to extend an eccentric wheel 342. The two eccentric wheels 342 are respectively provided with a pivot hole 3422. The edges of the two eccentric wheels 342 are each bent vertically to form an abutment plate 3424. The other end of the operating lever 34 is provided with a handle 344.

One end of the movable rod 36 defines a fastening hole 362. The fastening hole 362 can be fastened to the hook 16 in the middle of the front side wall 14 of the fixed base 1. The other end of the movable rod 36 is provided with a pivot hole 364. After the movable rod 36 passes through the through hole 326 of the pressing portion 322, the movable rod 36 is pivotally connected between the two eccentric wheels 342 through a pivot shaft 9 correspondingly through the pivot hole 3422 and the pivot hole 364.

The elastic spacer 38 is disposed in a receiving groove 3224 below the pressing portion 322. The elastic spacer 38 has a main body 382. Both ends of the main body 382 are bent downward to extend a fixing arm 384. An opening 3842 is defined in each of the two fixing arms 384. A protruding piece 3844 protrudes from the lower side of the opening 3842. The two protruding pieces 3844 can be correspondingly engaged with the fastening holes 242 of the adjacent heat dissipation fins 24. Thereby, the elastic spacer 38 is firmly fixed to the heat sink 2. The upper side of the opening 3842 extends to the two ends of the main body 382. The upper sides of the two openings 3842 are bent upwardly to extend an elastic support arm 3846. The two elastic support arms 3846 extend correspondingly into the receiving groove 3224. The inner portion of the pressing portion 322 is abutted against the bottom of the pressing portion 322, and the main body 382 is pressed on the top of the plurality of heat dissipating fins 24 to evenly distribute the pressure applied by the buckle 3 to each of the heat dissipating fins 24 to prevent the heat dissipating fins 24 from occurring. Deformation.

During the installation, the elastic gasket 38 is first mounted on the heat sink 2, so that the two tabs 3844 are correspondingly engaged in the fastening holes 242 of the heat dissipation fins 24, and then the pressing portion 322 of the buckle 3 is correspondingly mounted. In the recess 26 of the heat sink 2, the buckle holes (362, 3242) on the buckle 3 are correspondingly fastened to the hooks 16 on both sides of the fixed base 1; then the handle 344 is pulled to make the eccentricity The wheel 342 is rotatably moved on the pressing portion 322, and the movable rod 36 is raised to lock the buckle hole 362 to the hook 16 of the fixed base 1. The eccentric wheel 342 further presses the pressing portion 322 downward. The pressing portion 322 presses the heat sink 2 to the fixed base 1. If the buckle 3 is to be removed, the handle 344 only needs to be reversely pulled, so that the pressing portion 32 of the buckle 3 relaxes the heat sink 2, and the buckle 3 can be easily removed.

The structure of the buckle 3 is relatively simple, and is extremely convenient to use when mounting and disassembling the heat sink 2. The elastic gasket 38 of the buckle 3 distributes the pressure applied by the buckle 3 evenly to the respective heat dissipation fins 24, thereby avoiding heat dissipation. The fins 24 are deformed.

The above is the first embodiment of the present invention. Actually, the operation lever 34 is provided with only one eccentric wheel 342, which can also perform the same function, achieving the same effect. Moreover, many variations can be made on the basis of the embodiment, and details are not described herein again.

Claims

Claim

A heat sink comprising a heat sink and a buckle, the heat sink comprising a base and a plurality of heat dissipation fins protruding upward from the base, the buckle comprising a body, an operating rod and a movable rod, the body has a pressing portion, one end of the pressing portion is bent to extend a buckle portion, the buckle portion is provided with a plurality of fastening holes, and the other end of the pressing portion is provided with a perforation; One end of the operating rod is provided with at least one eccentric wheel, and the other end is provided with a handle; the movable rod has a buckle hole at one end thereof, and the other end is pivotally connected to the eccentricity of the operating rod through the perforation of the pressing portion The wheel is characterized in that: an elastic spacer is further disposed under the pressing portion of the buckle, the elastic gasket has a main body, and both ends of the main body are bent downwardly to extend a fixed arm. Each of the two bending members is disposed between the two adjacent heat dissipating fins; and the two fixing arms are respectively disposed between the two adjacent heat dissipating fins; Each side of the side is bent downward to extend a side wall. The pressing portion and the two side walls are formed to form a receiving groove, and the two elastic supporting arms of the elastic spacer are correspondingly received into the receiving groove to abut against the pressing portion; the operating rod is integrated One end of one end of the one end is bent to extend one of the eccentric wheels, and the two eccentric wheels are respectively provided with a pivot hole, and the other end of the movable rod is correspondingly opened with a pivot The hole passes through the pivot hole and the pivot hole correspondingly through a pivot to pivot the movable rod between the two eccentric wheels.

2. The heat dissipating device according to claim 1, wherein: an opening is formed in each of the fixing arms, and a protrusion is protruded from a lower side of the opening, and a heat dissipation fin of the heat dissipation fin is provided on the heat dissipation fin The tab of the clip corresponds to the snapped hole.

3. The heat dissipating device according to claim 1, wherein: an opening is formed in each of the fixing arms, and a protrusion is protruded from a lower side of the opening, and an opening on the fixing arm extends upward to the main body At both ends, the upper side of the opening is bent upward to extend out of the elastic support arm.

4. The heat dissipating device according to claim 1, wherein: the edges of the two eccentric wheels are vertically bent to extend an abutting plate.

The heat dissipating device according to claim 1, wherein: the heat sink is mounted on a fixed base, and the opposite sides of the fixed base are respectively provided with a plurality of hooks, and the plurality of button holes on the body of the buckle correspond to The buckle is fastened to the hook on one side of the fixed base, and the buckle hole of the movable rod is correspondingly fastened on the hook of the other side of the fixed base.