CN2664181Y - Radiator fixing device - Google Patents

Abstract

A radiator fixing device comprises a stud, a spring encased on the stud and a sleeve embedded in a base of the radiator; the bottom of the sleeve forms an inner flange to hold the spring in; when fixing the radiator, the stud presses the spring into the sleeve; the rear of the stud is blocked on a circuit board to form a buckle, thereby pressing the radiator on the circuit board tightly.

Description

Fixer for heat radiator

[technical field]

The utility model is about a kind of fixer for heat radiator, is meant a kind of easy accessibility especially, avoids forming the fixer for heat radiator of windage.

[background technology]

Nowadays, adopting radiator that heating electronic building bricks such as central processing unit are dispelled the heat becomes essentially, in order to increase radiating effect, adds toward contact on the radiator and puts a fan, with the quickening cross-ventilation.But the fixation problem that problem of the thing followed is radiator and fan because radiator and fan was fixing both fixed, can not have influence on the heat radiation of radiator and fan again.

When radiator is fixed on the circuit board, more employing one strip elastic fastener, this strip elastic fastener comprises the both wings of a horizontal pressure section and perk, the end of both wings is provided with fastener.In the time of fixedly, the strip elastic fastener is vertically placed in the groove between radiating fin, make its pressure section compress foot of radiator, the bending both wings are buckled on the circuit board fastener of both wings end.Rely on the elastic force that both wings produced of perk that radiator is fixed on the circuit board.

Or adopt the cylinder fastener to fix.This cylinder fastener tool one shaft, shaft one end is bigger head, an end is a hollow cone shape clamping part, is arranged with spring on the shaft.In the time of fixedly, this cylinder fastener passes fixing hole on the radiator fins channel bottom and the fixing hole on the circuit board successively, utilizes the clamping part of afterbody to be buckled on the back of circuit board.Thereby the fastener head compresses spring, and spring compresses foot of radiator, with fastener of radiator on circuit board.

But, above-mentioned dual mode all has a drawback, be after heat radiation combination that fan and radiator are formed is fastened on the heating electronic building brick, all can be in the high towering groove that stands between radiating fin because of the spring of the both wings of strip fastener or column fastener, the air-flow that fan produced is formed windage, reduce radiating effect.Simultaneously, first kind of mode also has complex structure, often will be by the shortcoming of additional means.The second way then small part is more, is difficult for packed and transported, and part is easy to lose.

Therefore, designing a kind of above-mentioned drawback that overcomes, especially avoid forming the fastener of heat sink of windage, is that industry is in demand.

[summary of the invention]

The purpose of this utility model is to provide a kind of fixer for heat radiator, is meant a kind of easy accessibility especially, avoids forming windage, is easy to the fixer for heat radiator of packed and transported.

The purpose of this utility model realizes by following technical proposal:

The utility model fixer for heat radiator comprises a double-screw bolt, and one is set in spring and on this double-screw bolt is embedded sleeve in foot of radiator, and this cover tube bottom forms inward flange, to hold spring in wherein; In the time of fixedly, double-screw bolt compresses spring and is absorbed in this sleeve, and the double-screw bolt trailer card is buckled in to form on the circuit board and fastens, thereby radiator is pushed against on circuit board.

The utility model fixer for heat radiator because double-screw bolt spinning spring is absorbed in the sleeve that is embedded in foot of radiator, reduces the height that double-screw bolt protrudes the foot of radiator upper surface greatly, thereby avoids fan airstream is formed windage, improves radiating efficiency.

[description of drawings]

With reference to the accompanying drawings, the utility model will be further described in conjunction with the embodiments.

Fig. 1 is the three-dimensional exploded view of the utility model fixer for heat radiator and associated component.

Fig. 2 and Fig. 3 are the assembly drawings of the utility model fixer for heat radiator and associated component.

Fig. 4 is the sectional view of the utility model fixer for heat radiator along Fig. 3 VI-VI direction.

Fig. 5 is the stereogram of the utility model fixer for heat radiator double-screw bolt.

Fig. 6 is the stereogram of the utility model fixer for heat radiator sleeve.

Fig. 7 is the stereogram of the utility model fixer for heat radiator catch.

[embodiment]

See also Fig. 1 to Fig. 4, the utility model fixer for heat radiator 20 is used for radiator 10 is fixed on circuit board 30, radiator 10 is fitted on the heating electronic building brick (figure does not show) of circuit board 30, and the fan by radiator 10 tops (figure does not show) accelerates cross-ventilation, eliminates the heating heat that electronic building brick produced.

Radiator 10 comprises a base 110 and some radiating fins 130 that extends on this base 110, forms some through holes 111 on this base 110, passes for fixture 20.

On circuit board 30, the through hole 111 of corresponding radiator 10 forms some through holes 301, is embedded a nut 303 in each through hole 301.

Fixture 20 comprises a double-screw bolt 21, a spring 23, a sleeve 25 and a catch 27.See also Fig. 5, double-screw bolt 21 has a cylinder shaft 213, and these shaft 213 1 ends form flange shape press section 211, one ends and form threaded portion 219.The screw thread that this threaded portion 219 is on damaged surface to be processed to form, but its column diameter is less than the diameter of shaft 213, to be combined in the nut 303 on the circuit board 30.Near 219 places, threaded portion, form a ring type groove 215 on shaft 213, this groove 215 is used to hold catch 27.

See also Fig. 4, sleeve 25 is to be embedded in the through hole 111 of radiator 10 bases 110 by crossing tight fit.Consult Fig. 6 simultaneously, the two ends of this sleeve 25 all form a flange, and its difference is: the flange 251 of an end outwards protrudes, and the flange 253 of the other end is to projecting inward.Flange 251 overexerts when preventing to inlay, and the through hole 111 that sleeve 25 penetrates radiator 10 comes off from opposite side; Flange 253 is in order to stop spring 23.Consult Fig. 7, catch 27 is a circular metal elastic sheet, and there is a star-shaped aperture 271 at its center, and the size in this hole is to be advisable in the groove 215 of Elastic buckle on double-screw bolt 21.

Before the assembling, earlier nut 303 is embedded in the through hole 301 on the circuit board 30, sleeve 25 is embedded in the through hole 111 of radiator 10 bases 110.Then, spring 23 is enclosed within on the double-screw bolt 21, makes it pass sleeve 25 on radiator 10 bases 110, and visited the tail end cover upper stop piece 27 at radiator 10 bases 110 back sides, catch 27 is buckled in the groove 215 of double-screw bolt 21 at double-screw bolt 21.Like this, as shown in Figure 2, fixture 20 and radiator 10 are just whole to be fastened togather.Because the press section 211 and the catch 27 of double-screw bolt 21 are arranged, and fixture 20 can not come off from radiator 10 easily, thereby helps packed and transported, prevent that part from losing.

During assembling, radiator 10 is placed on the circuit board 30, makes the nut 303 on the tail end alignment circuit plate 30 of radiator 10 upper studs 21.Then, rotation double-screw bolt 21, double-screw bolt 21 compresses spring 23 and moves down, be close to the upper surface of radiator 10 bases 110 until the press section 211 of double-screw bolt 21, double-screw bolt 21 is absorbed in the sleeve 25 with spring 23, simultaneously, the threaded portion 219 of double-screw bolt 21 tail ends screws in the screwed hole of nut 303, as shown in Figure 3 and Figure 4.Like this, reduce greatly, can between radiating fin 130 grooves, form windage hardly, improved radiating efficiency because double-screw bolt 21 protrudes the height of radiator 10 bases 110 upper surfaces.Simultaneously, this fixed structure has still effectively utilized spring, when waving vibrations, utilizes the spring shock absorption shock-absorbing, realizes the fastening of 20 pairs of radiators 10 of fixture and circuit board 30.

What deserves to be explained is that the double-screw bolt 21 in the present embodiment can also be the various buttons of other form, as long as its afterbody can be reached buckle with circuit board 30.

Claims (6)

1. fixer for heat radiator, comprise that a button and is set in the spring on this button, is characterized in that: this fixer for heat radiator comprises that also one is embedded the sleeve in foot of radiator, this cover tube bottom forms inward flange; In the time of fixedly, this button compresses spring and is absorbed in this sleeve, and is buckled on the circuit board by trailer card.

2. fixer for heat radiator according to claim 1 is characterized in that: described button is a double-screw bolt, and its afterbody forms screw thread.

3. fixer for heat radiator according to claim 1 is characterized in that: tight fit is crossed in the hole that holds this sleeve on described sleeve and the radiator.

4. fixer for heat radiator according to claim 1 is characterized in that: described fixture comprises that also one is fastened on the catch on the button afterbody.

5. fixer for heat radiator according to claim 4 is characterized in that: described button is provided with the groove that a card is established this catch.

6. fixer for heat radiator according to claim 4 is characterized in that: described catch is provided with a star-shaped aperture.

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