CN2682472Y

CN2682472Y - Radiating fin fixing device

Info

Publication number: CN2682472Y
Application number: CN 03205380
Authority: CN
Inventors: 姜清辉
Original assignee: KWO GER Metal Technology Inc
Current assignee: KWO GER Metal Technology Inc
Priority date: 2003-08-26
Filing date: 2003-08-26
Publication date: 2005-03-02
Anticipated expiration: 2013-08-26

Abstract

The utility model relates to the fixing device of the radiating fin which is mainly composing of a radiating fin and a fixing device. The both sides of the radiating fin are provided with the blocking up parts which are provided with a plurality of perforating holes. A plurality of gaskets are provided below the blocking up parts, and centre holes are arranged in the gaskets. The centre holes are point to the lower part of the perforating holes to make the centre holes and the perforating holes communicated. The fixing devices which are provided with the fasteners are arranged on the perforating hole of the blocking up parts. Buffering elements whose top surfaces and the bottom surfaces are gradually shrunk towards to the center are sleeved on the fasteners. The buffering elements can pass through the perforating holes and the centre holes of the blocking up parts by the aid of the fasteners, and then the radiating fins are attached on a chip. The fasteners of the fixing devices on the radiating fins are pressed to make the fasteners buckle in the buckling holes of the circuit board after passing through the perforating holes and the centre holes. The pressing stroke of the fasteners is limited by the buffering elements, the perforating holes and the centre holes. The skewness or the deviation can not begenerated, and the purpose of firmly positioning the radiating fins is obtained.

Description

The stationary installation of heat radiator

Technical field

The utility model relates to a kind of stationary installation of heat radiator, especially the bed hedgehopping position, both sides of finger heat radiator installs and is equipped with stationary installation, and can utilize stationary installation with the chip top of heat radiator build-in in circuit board, and the bed hedgehopping portion of heat radiator is provided with packing ring in the stationary installation below, and on the fastener of stationary installation, be arranged with bolster, it is crooked that fastener is not produced in the process that Pressing fastener is held, the effect that have accurate contraposition, fastens fast.

Background technology

Scientific and technical information fast development now, and personal computer, electronic memo and notebook computer are because calculation function is strong, speed is fast, therefore by widespread in industry-by-industry, and the arriving of cybertimes more causes the universalness of computing machine, wherein the chip in the computing machine can produce heat energy when running, and the speed fast heat energy that produces of healing is higher, for avoiding Yin Gaore to burn chip, and the serviceable life of shortening chip, therefore on each chip, be equipped with heat radiator, make the thermal energy conduction that produces on the chip to heat radiator, dispel the heat to the surface gap of each fin of heat radiator with the blow cold air that fan was produced again, yet, heat radiator places on the chip, can be because of the vibrations of computing machine, move and produce the displacement or come off, cause radiating effect not good, so, for heat radiator is fixed on the chip, to prolong the serviceable life of chip, promptly there is the dealer to do research and development at radiating fin fixing device, announce " the CPU radiating fin stationary installation is appended (two) " novel patent case the 31668 No. seven as TW, can consult shown in Figure 7, wherein this fastener A is that A1 is taken the lead in a upper end, the lower end is the tenon post A2 of spigot, and outside the body portion of tenon post A2, be arranged with a spring B, and its pilot hole C1 that utilizes tenon post A2 to pass circuit board C reaches the function of location, and so the disappearance of this kind device is:

1, after spring B is subjected to force compresses, can rock, cause fastener A to form unsteady situation because of the resist force that does not have side direction produces.

2, adopt general takeup type compression spring B, its upper and lower end face when exerted pressure by external force is not is a flat surface, and it is crooked promptly spring B to be formed, and then causes button to hold illusive situation generation.

3, after spring B was subjected to force compresses, its periphery was empty state, and the circuit that very easily makes spring B touch circuit board C causes short circuit phenomenon.

TW announces the novel patent case of No. 899, the 4th the May 4th " the CPU radiating fin stationary installation is appended (three) " for another example, can consult shown in Figure 8, wherein this fastener A01 is in the sheathed sleeve A 02 of the corresponding spring B01 of body portion, the base ring A03 that contracts in this sleeve A 02 bottom is provided with, this base ring A03 is supported by spring B 01 bottom frame, but voltage supply is formed on the perforation C02 of heat radiator C01 end face, to utilize the setting of sleeve A 02, the dependence that provides fastener A01 to push stroke is avoided rocking and is easy to firm button and organizes in the pilot hole C04 of circuit board C03; But its structure still has many disappearances:

One, when sleeve A 02 places heat radiator C02 end face, promptly block the perforation C03 on the heat radiator C02, make the difficult position of aiming at perforation C03 of fastener A01, cause the inconvenience of contraposition, influence the speed of installation exercise.

Two, this sleeve A 02 is the length of fasteners A01, and spring B 01 will be accommodated in inside, so the length of sleeve A 02 must extend, and it is a lot of to make sleeve A 02 length exceed heat radiator C01 top, not only influence the height design of circuit board C03, the inconvenience when also causing circuit board C03 to go up other spare part installation.

Three, when pushing fastener A01, fastener A01 promptly stretches in the sleeve A 02, the stroke of pushing of fastener A01 is shortened, and be easy to generate the untrue situation of pushing, and the spigot that causes fastener A01 bottom is the pilot hole C04 of advancing circuit plate C03 fully not, so that the unstable existing picture of snapping takes place.

Four, heat radiator C01 goes up and is ccontaining sleeve A 02, must design the original also big space of fastener A01, so that sleeve A 02 can place on the heat radiator C01, causes the inconvenience of heat radiator C01 design.

So improve the disappearance of above-mentioned existing Radiator fin clamp, be the very crux that this journey dealer desires most ardently improvement, also have many spaces to be improved simultaneously.

Summary of the invention

The utility model is because the disappearance of fastener on structural design of above-mentioned existing heat radiator, locator meams at heat radiator and circuit board, via constantly studying and designing, develop the utility model fastener push stroke firm, be difficult for deflection and button is held firmly, the radiating fin fixing device of mean forced.

Fundamental purpose of the present utility model, be that the heat radiator both sides are provided with bed hedgehopping portion, and be provided with several perforation in bed hedgehopping portion, and be provided with packing ring in perforation below, and with the center pit of packing ring to being positioned at perforation, perforation is formed with center pit connect, and be provided with stationary installation in perforation, this stationary installation has fastener, on fastener, be arranged with both sides and be bolster around shape towards central convergent, when then pushing the fastener of stationary installation, with the stroke of pushing of bolster restriction fastener, it is crooked to avoid fastener to produce, so that fastener stretch into the perforation and center pit after, snap in the button hole of circuit board again, and heat radiator is closely attached on the chip, and form firm location with circuit board.

Secondary objective of the present utility model, the perforation below that is bed hedgehopping portion is provided with packing ring, and the center pit of packing ring is to being positioned at perforation, when the connecting portion of fastener stretches in hole and the center pit, can increase fastener and push the limiting distance of stroke, make the more difficult skew of fastener or crooked.

A purpose more of the present utility model, be fastener connecting portion sheathed bolster form bigger accommodation space in end face and bottom surface internal diameter, and after bolster is subjected to force compresses, its central convergent is partly held in the accommodation space of end face and bottom surface, form smooth supporting surface, and make bolster have bigger compression travel.

For reaching above-mentioned purpose, the utility model provides a kind of stationary installation of heat radiator, mainly be made up of heat radiator and stationary installation, wherein, this fin surface is stood towards the top a plurality of radiating fins, in its both sides for being provided with bed hedgehopping portion, and this bed hedgehopping portion is provided with several perforation, and is provided with several packing rings in bed hedgehopping subordinate side, is provided with center pit in this packing ring, this center pit then to being positioned at the below of perforation, connects so that perforation forms with center pit; This stationary installation is fixedly arranged on the bed hedgehopping portion of heat radiator, have fastener, bolster, and this fastener top has head, and extended connecting portion by lower head, and be formed with hook portion, and between hook portion and connecting portion, be provided with the preshrunk space of radially running through in the connecting portion end; This bolster is placed on the connecting portion of fastener, its by end face, both sides, bottom surface towards central convergent around forming, and the internal diameter of its end face and bottom surface all has accommodation space; Above-mentioned heat radiator supports and to be affixed on the chip top, and stretch into the center pit of perforation, packing ring of bed hedgehopping portion by fastener with stationary installation after, buckles in the button hole of circuit board again, thereby heat radiator is fixed in the chip top.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a fastener stereo appearance figure of the present utility model;

Fig. 3 is a side cutaway view of the present utility model;

Fig. 4 fastens preceding side cutaway view for the utility model;

Side cutaway view when Fig. 5 fastens for the utility model;

Fig. 6 is the side cutaway view of the utility model after fastening;

Fig. 7 is the side cutaway view of existing radiating fin fixing device;

Fig. 8 is the side cutaway view of another kind of existing radiating fin fixing device.

Symbol description among the figure

1 heat radiator

11 radiating fins, 13 packing rings

111 spacings, 131 center pits

12 bed hedgehopping portions 14 support veneer

121 perforation

2 stationary installations

21 fasteners, 22 bolsters

211 heads, 221 accommodation spaces

212 connecting portions, 222 accommodation spaces

213 hook portions, 223 supporting surfaces

214 preshrunk spaces, 224 supporting surfaces

3 chips

4 circuit boards

41 button holes

The A fastener

A1 takes the lead A2 tenon post

The B spring

The C circuit board

The C1 pilot hole

A01 fastener A03 base ring

The A02 sleeve pipe

The B01 spring

C01 heat radiator C03 circuit board

C02 perforation C04 pilot hole

Embodiment

Describe embodiment of the present utility model in detail below in conjunction with drawings and Examples.

See also shown in Fig. 1,2,3, be three-dimensional exploded view of the present utility model, fastener stereo appearance figure, side cutaway view, can be by finding out among the figure that the utility model mainly is made up of heat radiator 1, stationary installation 2, now with regard to main member of the present utility model and architectural feature describes in detail as after, wherein:

This heat radiator 1 its bottom has the smooth veneer 14 that supports, and surperficial standing towards the top has a plurality of radiating fins 11, in its both sides for being provided with bed hedgehopping portion 12, and be provided with several perforation 121 in 11 spacings 111 of the radiating fin in bed hedgehopping portion 12, and be provided with several packing rings 13 in bed hedgehopping portion 12 belows, these packing ring 13 inside are provided with the center pit 131 of perforation, and this center pit 131 is then to being positioned at perforation 121 below, 121 form with center pit 131 and to connect so that bore a hole.

This stationary installation 2 is fixedly arranged on the bed hedgehopping portion 12 of heat radiator 1, have fastener 21, bolster 22, and these fastener 21 tops have head 211, and extended connecting portion 212 by head 211 belows, and be formed with hook portion 213, and be provided with the preshrunk space of radially running through 214 in

hook portion

213 and 212 of connecting portions in connecting portion 212 ends; This bolster 22 by end face, both sides, bottom surface towards central convergent around forming, and the internal diameter of its end face and bottom surface all has accommodation space 221,222, after being subjected to force compresses for bolster 22, central convergent portion being held in the accommodation space 221,222, and form supporting surface 223,224.

See also Fig. 3 again, 4,6, shown in 6, be side cutaway view of the present utility model, side cutaway view before fastening, side cutaway view during fastening, side cutaway view behind the fastening, wherein, by heat radiator 1 to support veneer 14 smooth behind the surface of chip 3, and the packing ring 13 of heat radiator 1 bed hedgehopping portion 12 belows, be positioned at button hole 41 on the circuit board 4 with 131 pairs of center pits, the fastener 21 of stationary installation 2 can be stretched into perforation 121 and center pit 131 with hook portion 213, promptly push the head 211 of fastener 21, make head 211 push connecting portion 212, and head 211 is absorbed in the spacing 111 of radiating fin 11, and after with connecting portion 212 hook portion 213 being squeezed, promptly shrink toward the preshrunk space 214 at center, produce elastic deformation, and connecting portion 212 is also entered in perforation 121 and the center pit 131, and the application of force is pushed fastener 21 again, make hook portion 213 snap in the button hole 41 of circuit board 4 again, when hook portion 213 enters button hole 41, also shrink toward the preshrunk space 214 at center, form elastic deformation, and after hook portion 213 is passed button hole 41, utilize elastic restoring force that hook portion 213 is opened, and be held in button hole 41 belows, reach with on fastener 21 the chip that is held in circuit board 43 that heat radiator 2 is firm.

Above-mentioned radiating fin fixing device of the present utility model has following advantage:

(1) the connecting portion 212 outer bolsters 22 that are equipped with of fastener 21, and connecting portion 212 passes the perforation 121 of bed hedgehopping portion 12, the center pit 131 of packing ring 13 again, thereby make fastener 21 push stroke be subjected to bolster 22, the perforation 121, center pit 131 spacing, when fastener 21 is pushed unlikely crooked or the skew.

(2) internal diameter of bolster 22 in end face and bottom surface has accommodation space 221,222, and central authorities' convergent partly can be placed in this accommodation space 221,222 when bolster 22 is pushed.

(3) bed hedgehopping portion 12 is provided with packing ring 13 in perforation 121 belows, and makes the center pit 131 and perforation 121 contrapositions of packing ring 13, and shortens the distance between bed hedgehopping portion 12 and circuit board 4 button holes 41, for hook portion 213 easier the snapping in the button hole 41 of fastener 21.

(4) fastener 21 is behind the button hole 41 that buckles into circuit board 4, and the head 211 of fastener 21 promptly is absorbed in the spacing 111 of radiating fin 11, does not protrude outside the radiating fin 11, avoids influencing the design height restriction of circuit board 4.

Above-mentioned detailed description only is at preferred embodiment explanation of the present utility model; this embodiment is not in order to limit to protection domain of the present utility model; such as other does not break away under the technical spirit that the utility model discloses; the equalization finished changes and modifies, and all should be contained in the scope of claims that the utility model contains.

Claims

1, a kind of stationary installation of heat radiator mainly is made up of heat radiator and stationary installation, it is characterized in that:

This fin surface is stood towards the top a plurality of radiating fins, be provided with bed hedgehopping portion in its both sides, and this bed hedgehopping portion is provided with several perforation, and be provided with several packing rings in bed hedgehopping subordinate side, be provided with center pit in this packing ring, this center pit then to being positioned at the below of perforation, connects so that perforation forms with center pit;

This stationary installation is fixedly arranged on the bed hedgehopping portion of heat radiator, have fastener, bolster, and this fastener top has head, and extended connecting portion by lower head, and be formed with hook portion, and between hook portion and connecting portion, be provided with the preshrunk space of radially running through in the connecting portion end; This bolster is placed on the connecting portion of fastener, its by end face, both sides, bottom surface towards central convergent around forming, and the internal diameter of its end face and bottom surface all has accommodation space;

Above-mentioned heat radiator supports and to be affixed on the chip top, and stretch into the center pit of perforation, packing ring of bed hedgehopping portion by fastener with stationary installation after, buckles in the button hole of circuit board again, thereby heat radiator is fixed in the chip top.

2, the stationary installation of heat radiator according to claim 1, it is characterized in that the connecting portion of the fastener of this stationary installation limits by the stroke of pushing of the connecting portion of the perforation of bolster and heat radiator, center pit contacting piece, when fastener is pushed, do not produce situation crooked or skew.

3, the stationary installation of heat radiator according to claim 1 is characterized in that this fin surface is stood towards the top a plurality of radiating fins, and forms spacing between several heat radiations.

As the stationary installation of heat radiator as described in the claim 3, it is characterized in that 4, the spacing that forms between this several heat radiation for being positioned at the bed hedgehopping portion place of heat radiator both sides, and can be provided with several perforation in the spacing of bed hedgehopping portion.