CN110149780A - Fastener of heat sink and radiating module device - Google Patents

Abstract

The present invention relates to a kind of fastener of heat sink and radiating module device, which includes a button body, a fastener and an elastic element.The elastic element is arranged in the button body and is set on the fastener, the fastener runs through from the lower section of button body and top is located above the button body by operation fastener upper and lower displacement, the elastic element then in the fastener upper and lower displacement, provides elastic force and gives the button body.

Description

Radiator clip and cooling module device

This case is a divisional application, and the parent case is a Chinese invention patent application with the patent number 201410103427.4, the application date is March 19, 2014, and the invention name is "radiator fastener and heat dissipation module device".

technical field

The invention relates to a radiator clip, in particular to a radiator clip used to mount and fix a radiator on an electronic component, and also to a heat dissipation module device using the radiator clip.

Background technique

With the rapid development of the electronic industry, the running speed of electronic components is continuously improved, and a large amount of heat is generated during operation, which increases the temperature of itself and the system, which in turn affects the stability of the system. To ensure the normal operation of electronic components, heat sinks are usually installed on them to dissipate the heat generated by them.

The current solution to the heat dissipation problem of electronic components is usually to install a heat sink on each heat-generating electronic component. The heat sink includes a base plate in close contact with the electronic components, and a plurality of heat dissipation fins disposed on the base plate. There are many ways to fix the radiator. In order to keep the radiator close to the surface of the heat-generating electronic components, a clasp device is usually used to assist the radiator to be fastened to the electronic component. The general clasp device is on the circuit board. A fixing seat is arranged, and the fixing seat is buckled with the fastener acting on the radiator to exert a pressing effect on the radiator, so that the radiator is pressed and closely attached to the surface of the heating electronic element.

For example, Taiwan Patent Application No. 95106292 discloses a radiator buckle device, which includes a first fastener, a second fastener and a handle. The first fastener has an elastic arm that is pressed down. The elastic arm One end is bent and extended to form a first buckle foot, and the other end has a bearing surface; the second buckle is arranged on the end of the first buckle with the bearing surface. The handle is connected with the second fastener, and one end of the handle is provided with an eccentric that presses against the receiving surface. The eccentric is formed with a convex point near its free end. When the eccentric rotates, the convex point is released by the second fastener One side slides to the opposite side and is locked with one side edge of the second fastener, and a section of the edge that contacts the receiving surface when the eccentric wheel rotates forms a flanging.

However, with the advancement of the digital information age, light, thin and short have become the main trend of current electronic products. The aforementioned radiator snap-fit device is not easy to operate and fix the radiator in a limited (limited) space, so how to fix the radiator in a limited space? In addition, it is easy to operate, which is the goal that those skilled in the art want to overcome and improve.

SUMMARY OF THE INVENTION

Therefore, in order to effectively solve the above-mentioned problems, the main purpose of the present invention is to provide a radiator clip and a heat dissipation module device that can be quickly assembled and disassembled without using hand tools for locking.

Another object of the present invention is to provide an elastic element to make the buckle have an elastic force when it is fastened or released, so that it is easier to operate;

The flexible body has a first side and a second side; the sensing electrode layer has a first sensing electrode and a second sensing electrode, the first and second sensing electrodes are arranged correspondingly and are not in contact with each other, The sensing electrode layer is disposed on the second side of the flexible body; the protective layer is correspondingly disposed on the second side of the flexible body and covers the sensing electrode layer.

In order to achieve the above purpose, the present invention provides a radiator fastener, comprising: a button body, which has a top surface and a bottom surface, the top surface is provided with a pair of perforated holes, and a receiving surface is arranged between the two perforated holes. The bottom surface is provided with an accommodating slot to communicate with these holes; a fastener has a first sheet body and a second sheet body, and the top ends of the first sheet body and the second sheet body are respectively provided with a corresponding pivot hole , the first sheet body and the second sheet body are respectively corresponding to the broken holes, respectively pass through the broken holes from the bottom of the button body so that the two pivot holes are located above the receiving surface, and the bottom end of the first sheet body is connected a buckle foot, the buckle foot is provided with at least one button hole; an elastic element is accommodated in the accommodating slot hole of the button body, and is sleeved on the first piece body and the second piece body of the buckle piece ; A handle with a toggle arm and an eccentric wheel, one end of the toggle arm is connected to the eccentric wheel, the other end is a free end, the eccentric wheel has an eccentric guide groove and an abutting surface formed on the eccentric wheel The outer peripheral surface of the eccentric wheel is located between the first sheet body and the second sheet body above the receiving surface, and is connected to the pivot holes and the guide groove through a pivot element. The abutting surface Contact the receiving surface of the button body.

The bottoms of the first sheet body and the second sheet body are connected via a connecting sheet body.

The receiving surface is in the shape of a concave circular arc formed with the abutting surface.

The first sheet body and the second sheet body are parallel to each other.

The pair of perforations are parallel to each other.

The present invention further provides a heat dissipation device, comprising: a fixing base with two opposite outer sides respectively provided with a projection; a radiator arranged on the fixing base, including a base located on the fixing base and a fin assembled on the base, a platform protruding outward from opposite sides of the base respectively, a slot hole is arranged on the platform, a bottom of the slot hole is provided with a through hole penetrating the platform; a radiator fastener , located on at least one side of the radiator, the radiator fastener includes: a button body with a top surface and a bottom surface, the top surface is provided with a pair of holes, and there is a receiving surface between the two holes, the The bottom surface is provided with an accommodating slot that communicates with these holes and corresponds to the slot of the platform; a fastener has a first sheet body and a second sheet body, and the tops of the first sheet body and the second sheet body are respectively opened There is a corresponding pivot hole, the first sheet body and the second sheet body are respectively corresponding to the slot holes, and pass through the through hole from the bottom of the platform, and pass through the broken hole from the bottom of the button body respectively so that the two The pivot hole is located above the receiving surface, the bottom end of the first piece is connected with a buckle foot, and the buckle foot is provided with at least one button hole to buckle the convex block of the at least one fixed seat; an elastic element is accommodated in the buckle foot. The button body is located in the accommodating slot hole and between the accommodating slot hole and the slot hole of the platform, and is sleeved on the first sheet body and the second sheet body of the fastener; a handle has a wrenching arm and An eccentric wheel, one end of the pulling arm is connected to the eccentric wheel, and the other end is a free end, the eccentric wheel has an eccentric guide groove and an abutting surface formed on the outer peripheral surface of the eccentric wheel, wherein the eccentric wheel Between the first sheet body and the second sheet body located above the receiving surface, the pivot holes and the guide groove are pivoted through a pivot element, and the abutting surface contacts the receiving surface of the button body.

The fixing base is mounted on a circuit board provided with an electronic component, and the fixing base includes two bases symmetrically arranged on both sides of the electronic component, and two opposite outer sides of the two bases are respectively provided with the protruding block outwards.

Two opposite sides of the fin set are respectively provided with a recess, and two opposite limiting portions are respectively provided on the base to correspond to the recesses.

The bottoms of the first sheet body and the second sheet body are connected via a connecting sheet body.

The receiving surface is in the shape of a concave circular arc formed with the abutting surface.

The first sheet body and the second sheet body are parallel to each other.

The pair of perforations are parallel to each other.

The invention can operate the fastener to fasten the heat sink in a limited space, and achieve the purpose of labor saving and easy operation.

Description of drawings

FIG. 1 is an exploded schematic diagram of a heat dissipation module device of the present invention;

Fig. 2 is the combined schematic diagram of the heat dissipation module device of the present invention;

3A is an exploded schematic view of a radiator clip of the present invention;

3B is an exploded schematic view of the radiator fastener of the present invention;

3C is a schematic cross-sectional view of the assembly of the radiator fastener of the present invention;

4A is an exploded schematic view of another radiator clip of the present invention;

4B is a schematic diagram of a fastener of another radiator fastener of the present invention;

4C is a schematic cross-sectional view of the assembly of another radiator clip of the present invention

FIG. 5A is a schematic diagram of another radiator clip releasing protrusion;

FIG. 5B is a schematic diagram of a fastener securing protrusion of another heat sink;

6A is a schematic diagram of a radiator fastener releasing a bump;

FIG. 6B is a schematic diagram of a fastener securing protrusion of a heat sink.

Symbol Description

10 Mounts

11, 12 body

111, 121 bump

20 Radiators

21 base

211 platform

212 slotted hole

2121 Bottom

213 through hole

214 limit part

22 fin set

221 fins

223 Sag

30 Radiator Buckle

31 button body

311 Top

312 Bottom

313 hole

314 receiving surface

315 accommodating slot

32 Fasteners

321 first body

322 second body

323 pivot hole

324 connection piece

325 buckle feet

3251 button hole

33 handle

331 toggle arm

332 eccentric wheel

332I guide groove

3322 abutment surface

34 elastic elements

35 pivot elements

40 circuit boards

41 heat-generating electronic components

50 Radiator Buckle

51 rings

511 Top

512 Bottom

513 shaft hole

514 accommodating slot

52 Fasteners

521 Operation Department

5211 The first folding plate

5212 Second Folding Plate

5217 Space

5213 first ^^ switch parts

5214 The second catch part

5215 first shoulder

5216 Second shoulder

523 buckle feet

5231 socket hole

B Wen low drop gap

53 elastic elements

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

The above objects of the present invention and their structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings.

The preferred implementation of the present invention will be described below with reference to the related drawings, wherein the same elements will be described with the same reference numerals.

FIG. 1 is an exploded schematic view of the heat dissipation module device of the present invention. FIG. 2 is a combined schematic diagram of the heat dissipation module device of the present invention. The heat dissipation module includes a fixing base 10 , a heat sink 20 and a heat sink fastener 30 . The holder 10 can be mounted on a circuit board 40 , the heat sink 20 is attached to a surface of a heating electronic component 41 on the circuit board 40 , and the heat sink fastener 30 is arranged on at least one of the heat sink 20 . The other side of the radiator 20 is provided with another radiator clip 50. By the radiator clip 30 and the other radiator clip 50 being fastened to the fixing seat 10, the radiator 20 can be connected to the heating electronic components. The surfaces of the heat generating electronic components 41 are in close contact with each other so as to dissipate the heat generated by the heating electronic components 41 through the heat sink 20 .

The fixing base 10 includes two base bodies 11 and 12 . The two base bodies 11 and 12 are symmetrically arranged on opposite sides of the heating electronic element 41 and can be fixed on the circuit board 40 by means of screw locks or snap connections. The opposite outer sides of the two bases 11 , 12 are respectively provided with a protrusion 111 , 121 protruding outward for the radiator fastener 30 and the other radiator fastener 50 to be fastened.

The heat sink 20 is disposed on the fixing base 10 and includes a base 21 and a fin set 22 , the base 21 is located on the fixing base 10 and the lower surface of the base 21 is attached to the heating electronic element 41 surface to absorb the heat generated by the heat-generating electronic components 41 . A platform 211 protrudes outward from opposite sides of the base 21 , each platform 221 defines a slot 212 , and a bottom 2121 of the slot 212 defines a through hole 213 penetrating the platform 211 . The upper surface of the base 21 is provided with two opposite limiting portions 214 . The fin set 22 includes a plurality of fins 221 in one implementation. The fin group 22 is vertically disposed on the upper surface of the base 21 and is fixed to the base 21 by welding or the like. The plurality of fins 221 of the fin group 22 are parallel to each other, and an airflow channel for airflow to pass through is formed between two adjacent fins 221 . Opposite sides of the fin set 22 are respectively provided with a concave 223 corresponding to the limiting portions 214 , the fin set 22 can be positioned on the base 21 by the limiting portion 214 , and the plurality of fins of the fin set 22 22 can thereby be evenly distributed on the upper surface of the base 21 . In another specific implementation, the fin set further includes a plurality of heat pipes passing through the plurality of fins (not shown).

3A, 3B and 3C at the same time, the radiator fastener 30 includes a button body 31 , a fastener 32 , a handle 33 , an elastic element 34 and a pivot element 35 . The pivot element 35 is a cylindrical pivot pin.

The button body 31 has a top surface 311 and a bottom surface 312, the top surface 311 is provided with a pair of holes 313 parallel to each other, and a receiving surface 314 is formed between the two holes 313, and the receiving surface 314 forms a concave In the shape of an arc, the bottom surface 312 is provided with a receiving slot 315 which communicates with the perforated holes 313 .

The fastener 32 has a first piece 321 and a second piece 322 that are parallel to each other. The top ends of the first piece 321 and the second piece 322 respectively define a corresponding pivot hole 323 for the The pivot element 35 is passed through, the first piece 321 and the second piece 322 are corresponding to the holes 313 respectively, and pass through the holes 313 from the bottom of the button body 31 respectively so that the two pivot holes 323 are located in the holes 313 . Above the receiving surface 314 , the bottoms of the first sheet body 321 and the second sheet body 322 are connected by a connecting sheet body 324 , and the bottom end of the first sheet body 321 is connected to a buckle foot 325 , and the buckle foot 325 is provided with At least one button hole 3251 is buckled with the fixing base 10 . The fastener 32 is integrally formed from a plate-shaped metal plate body by punching. The buckle 32 is not limited to the shape shown in the figure, and can also be other shapes, such as an inverted T-shaped plate body, and the buckle feet 325 can also be provided with a plurality of socket holes. 11 and 12 can also be provided with a plurality of bumps correspondingly.

The elastic element 34 is a compression spring, accommodated in the accommodating slot 315 of the button body 31 , and sleeved on the first piece 321 and the second piece 322 of the buckle 32 .

The handle 33 has a toggle arm 331 and an eccentric wheel 332. One end of the toggle arm 331 is connected to the eccentric wheel 332, and the other end is a free end for easy holding operation. The eccentric wheel 332 has an eccentric guide groove 3321 for the pivot element 35 to pass through, and a contact surface 3322 is formed on the outer peripheral surface of the eccentric wheel 332, wherein the eccentric wheel 332 is placed above the receiving surface 314 and located on the first sheet body 321 The pivot hole 323 corresponds to the second sheet body 322 .

The radiator clip 30 installed on one side of the heat sink 20 is assembled by placing the button body 31 on a platform 211 of the base plate 21 , so that the bottom surface 312 of the button body 31 corresponds to the platform 211 . The elastic element 34 disposed in the accommodating slot 315 of the button body 31 is located between the accommodating slot 315 and the slot 212 of the platform 211 . Let the first piece 321 and the second piece 322 of the fastener 32 pass through the through hole 213 and the slot 212 from the bottom of the platform 211, and then pass through the holes 313 from the bottom of the button body 31 to make the two pivots The connecting holes 323 are located above the receiving surface 314, and then the pivoting holes 323 and the guiding grooves 3321 are penetrated by the pivoting element 35, so that the handle 33 and the fastener 32 are pivotally connected together, and the eccentric wheel 332 is connected to each other. The abutting surface 3322 abuts on the receiving surface 314 of the button body 31 . Both ends of the pivot element 35 can be riveted to prevent the pivot element 35 from slipping out of the pivot hole 323 and the guide groove 3321 .

4A, 4B and 4C at the same time, the other radiator fastener 50 includes a collar 51, a fastener 52 and an elastic element 53, the collar 51 has a top surface 511 and a bottom surface 512, The top surface 511 defines a shaft hole 513 , the bottom surface 512 defines a receiving slot 514 , and the shaft hole 513 communicates with the receiving slot 514 . The fastener 52 has an operating portion 521 and a downwardly extending pin 523 , the pin 523 has a socket hole 5231 , and the operating portion 521 penetrates the shaft hole 513 of the collar 51 and the receiving slot 514 , and has two opposing first folded plates 5211 and a second folded plate 5212, a space 5217 is located between the first folded plate 5211 and the second folded plate 5212, a middle section of the first folded plate 5211 There is a first latching member 5213 at the position, and a first shoulder 5215 is formed on the top of the first folding plate 5211. A middle position of the second folding plate 5212 has a second latching member 5214, and a first Two shoulders 5216 are formed on the top of the second folding plate 5212 , wherein the first locking member 5213 and the second locking member 5214 are buckled against the top surface 511 of the collar 51 . The height of the first folded plate 5211 is lower than the height of the second folded plate 5212, and the first shoulder 5215 at the top of the first folded plate 5211 is bent toward the second folded plate 5212, located in the second folded plate 5212. The second shoulder 5216 at the top of the folded plate 5212 is bent toward the first folded plate 5211, the first shoulder 5215 is located below the second shoulder 5216, and a height difference B is formed by the first shoulder 5215 and the second shoulder 5216. The second shoulder 5216 defines. The elastic element 53 is a compression spring sleeved and accommodated in the accommodating slot 514 and sleeved on the operating portion 521 of the fastener 52 . Referring back to FIGS. 1 and 2 , the radiator clip 30 installed on one side of the radiator 20 is assembled by placing the operating member 31 above the platform 211 of the base plate 21 so that the bottom end 3112 of the cam portion 311 corresponds to the platform 211. The top 331 of the fastener 33 passes through the through hole 213 of the platform 211 and the shaft hole 321 of the mounting ring 32 from the bottom of the platform 211, and then corresponds to the top 3111 of the cam portion 311, and is pivoted by the pivot element 35, the elastic element 34 is located between the cam portion 311 and the slot hole 212 .

Another radiator clip 50 installed on the other side of the heat sink 20 is assembled by placing the collar 51 above the other platform 211 of the substrate 21 , so that the bottom surface 512 of the collar 51 corresponds to the platform 211 . The elastic element 53 is placed between the receiving slot 514 of the collar 51 and the slot 212 of the platform 211 . The top end of the fastener 52 penetrates through the through hole 213 of the platform 211 and the receiving slot 514 and the shaft hole 513 of the collar 51 from below the platform 211 . The elastic element 53 is sleeved on the operating portion 521 .

Please also refer to FIG. 5A , which is a schematic diagram of another heat sink fastener 50 releasing the bump. FIG. 5B is a schematic diagram of another radiator fastener 50 securing the protrusions. Place the radiator 20 on the fixing seat 10, firstly set the socket 5231 of the buckle foot 523 of the other radiator clip 50 on one side of the radiator 20 to the protrusion 111 provided on the outer side of the seat body 11, The top surface 511 of the collar 51 presses the collar 51 downward, so that the first latching member 5213 and the second latching member 5214 are pressed against the top surface 511 of the collar 51 , and the fastener 52 is pulled upwards. , the socket hole 5231 is fastened to the protrusion 111, and the elastic element 53 is in a compressed state.

If the other radiator fastener 50 is to be loosened, two forces are applied from the outer sides of the first folding plate 5211 and the second folding plate 5212 to cause the first folding plate 5211 and the second folding plate 5212 to be displaced relative to each other. When the space 5217 moves, the first latching member 5213 and the second latching member 5214 that were originally pressed against the top surface 511 of the collar 51 are separated from the top surface 511 , and the elastic force of the compressed elastic element 53 to generate recovery acts on the sleeve. On the ring 51, the collar 51 is moved upward, the fastener 52 is displaced downward, the first locking member 5213 and the second locking member 5214 are retracted into the shaft hole 513, between the socket hole 5231 and the convex block 111 Show a relaxed state.

Please also refer to FIG. 6A , which is a schematic diagram of the radiator clip 30 releasing the protrusions. FIG. 6B is a schematic diagram of the radiator fastener 30 securing the protrusions. The button hole 3251 of the fastener 32 of the radiator fastener 30 is sleeved on the protrusion 121 provided on the outer side of the base body 12 . At the same time, the toggle arm 331 of the handle 33 located above the button body 31 is on the left side of the drawing, the pivot element 35 is located at one end of the guide groove 3321 , and is located below the button body 31 and located in the receiving slot 315 And the elastic element 34 between the slot 212 of the platform 211 is in an uncompressed state. There is a distance between the bottom surface 312 of the button body 31 and the upper surface of the platform 211 , and this distance is the distance that the fastener 33 moves up and down.

Pull the pulling part 312 to the right in the figure (as shown in FIG. 6B ) to drive the eccentric 332 to rotate, the guide groove 3321 moves to the other end of the guide groove 3321 relative to the pivot element 35 until the pull The arm 331 stops on the right side of the drawing (see Fig. 6B). The fastener 32 is pulled up and moved upward along with the movement of the pivot element 35 in the guide groove 3321 , and the fastener hole 3251 fastens the protrusion 121 . The abutting surface 3322 of the eccentric wheel 332 rests on the receiving surface 314 of the button body 31 and moves to press down the button body 31 , so that the bottom surface 312 of the button body 31 rests on the platform 211 . The elastic element 34 located between the receiving slot 315 and the slot 212 of the platform 211 is in a compressed state.

To loosen the radiator clip 30 , move the lever arm 331 of the handle 30 to the left in the figure (as shown in FIG. 6A ) to drive the eccentric wheel 332 to rotate, and the guide groove 3321 is opposite to the pivot element 35 The original end of the guide groove 3321 moves until the pulling arm 331 stops at the left side of the drawing (as shown in FIG. 6A ). With the movement of the pivot element 35 in the guide groove 3321 , the buckle 32 is released and moves downward, and the buckle hole 3251 releases the protrusion 121 . The abutting surface 3322 of the eccentric wheel 332 rests on the receiving surface 314 of the button body 31 and moves to the original position, the elastic element 34 returns to an uncompressed state, and the button body 31 is returned to the original position by its elastic force. The original position, that is, the upper part of the platform 211 is a certain distance from the upper surface of the platform 211 .

The radiator clip 30 generates a good elastic retaining force by the elastic element 34, so that the radiator and the heating electronic element 41 are in close contact, and provide a good impact resistance, which can ensure that the radiator 20 and the heating After long-term use, the electronic components 41 can still maintain a good contact effect, thereby ensuring the heat transfer efficiency of the two.

In addition, the previous figures show that two different radiator clips 30 and 50 are provided on both sides of the radiator 20 , but two identical radiator clips 30 or two identical radiator clips 30 can also be installed on both sides of the radiator 20 . Another radiator clip 50 .

To sum up, the present invention utilizes the elastic force generated by the elastic element to fasten or release the protrusion by moving the radiator fastener up or down. In addition to locking without using hand tools and being able to be quickly assembled and disassembled, the utility model can be used in a limited space and has the effect of being easy to operate.

Although the present invention is disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The protection scope of the invention shall be determined by the claims.

Claims (14)

1. A radiator clip, characterized in that, comprising: a set of rings, which has a top surface and a bottom surface, the top surface is provided with a shaft hole, the bottom surface is provided with a receiving slot hole, and the shaft hole is connected with the receiving slot hole; A buckle has an operating portion and a downwardly extending buckle foot, the buckle foot has a socket hole, the operating portion is penetrated in the shaft hole of the collar and the receiving slot hole, and has two opposite one A first folding board and a second folding board, a middle position of the first folding board has a first locking member, a middle position of the second folding board has a second locking member, wherein the first locking member The catch part and the second catch part are buckled on the top surface of the collar; An elastic element is accommodated in the accommodating slot and sleeved on the operating portion of the fastener. 2 . The radiator fastener of claim 1 , wherein a space is defined between the first folded plate and the second folded plate. 3 . 3 . The radiator fastener of claim 1 , wherein a top end of the first folded plate forms a first shoulder, and a top end of the second folded plate forms a second shoulder. 4 . 4 . The radiator fastener of claim 3 , wherein the height of the first folded plate is shorter than the height of the second folded plate. 5 . 5 . The radiator fastener as claimed in claim 4 , wherein the first shoulder at the top of the first folded plate is bent toward the second folded plate, and the second shoulder at the top of the second folded plate is located at the second folded plate. 6 . The shoulder is bent toward the direction of the first folding plate, and is located below the second shoulder of the first shoulder, and a height difference is defined by the first shoulder and the second shoulder. 6 . The radiator clip of claim 1 , wherein the elastic element is a compression spring. 7 . 7 . The radiator fastener of claim 1 , wherein the elastic element is axially compressed in the accommodating slot through the extrusion of the collar to generate an axial elastic restoring force. 8 . 8. A heat dissipation device, characterized in that, comprising: a fixed seat, with two opposite outer sides respectively provided with a convex block; A radiator is arranged on the fixed seat, including a base located on the fixed seat and a set of fins arranged on the base, and a platform is respectively protruded outward from the opposite two sides of the base, The platform is provided with a slot hole, and a bottom of the slot hole is provided with a through hole penetrating the platform; A radiator clip is located on at least one side of the radiator, the radiator clip includes: a set of rings, which has a top surface and a bottom surface, the top surface is provided with a shaft hole, and the bottom surface is provided with a receiving slot hole, The shaft hole communicates with the receiving slot; A buckle has an operating portion and a downwardly extending buckle foot, the buckle foot has a socket hole, the operating portion is penetrated in the shaft hole of the collar and the receiving slot hole, and has two opposite one A first folding board and a second folding board, a middle position of the first folding board has a first locking member, a middle position of the second folding board has a second locking member, wherein the first locking member The catch part and the second catch part are buckled on the top surface of the collar; An elastic element is accommodated in the accommodating slot and sleeved on the operating portion of the fastener. 9 . The heat dissipation device of claim 8 , wherein a space is defined between the first folded plate and the second folded plate. 10 . 10 . The heat sink of claim 8 , wherein a top end of the first folded plate forms a first shoulder, and a top end of the second folded plate forms a second shoulder. 11 . 11 . The heat dissipation device of claim 10 , wherein the height of the first folded plate is shorter than the height of the second folded plate. 12 . 12 . The heat dissipation device of claim 11 , wherein the first shoulder at the top of the first folded plate is bent toward the second folded plate, and the second shoulder at the top of the second folded plate is located at the second shoulder. 13 . It is bent in the direction of the first folding plate, and is located below the second shoulder of the first shoulder, and a height difference is defined by the first shoulder and the second shoulder. 13. The heat dissipation device of claim 8, wherein the elastic element is a compression spring. 14 . The heat dissipation device of claim 8 , wherein the elastic element is axially compressed in the accommodating slot through the extrusion of the collar to generate an axial elastic restoring force. 15 .