CN2596548Y - Fastener - Google Patents

Abstract

The utility model relates to a fastening device which can cause a radiator and a heating element on a circuit board to abutted into integration, which comprises a pair of abutting fasteners and a pressing fastener, wherein, the center point of each abutting fastener is provided with a long groove, an elastic sheet used for abutting the upper surface of the radiator is formed in the long groove, one end of each abutting fastener is provided with a fastening part, and the opposite other end is bent downwards to form a fastening hook used for being hooked on a fixing module on the circuit board; a pair of openings used for fastening and containing the abutting fasteners and the fastening part are arranged on the pressing fastener, and both ends of the pressing fastener respectively and downwards form a fastening hook used for being hooked on a fixing module on the circuit board; therefore, the radiator attached on the heating element is convenient.

Description

Buckling device

[technical field]

The utility model is about a kind of buckling device, is meant a kind of buckling device that the heater element on radiator and the circuit board is snapped together of being used for especially.

[background technology]

Along with electronic installation is inner as central processing unit (Central Processing Unit, be called for short CPU) etc. the arithmetic speed of chip module more and more faster, electronic component set in the chip module is more and more, reach under the increasing situation of consumed power, its temperature of supervening also improves thereupon, so need usually to set up a radiator on its surface.For these radiators and central processing unit are closely fit together to reach better heat radiating effect, industry has proposed the method for various fixing radiator.Shown in No. the 5th, 671,118, at present common holding method such as the United States Patent (USP), see also Fig. 1, this method is to utilize an elastic fastener 14 that radiator 10 is retained on the central processing unit 20.A profile groove 12 is dissectd out in the central authorities of this radiator 10, and this elastic fastener 14 is positioned on the lug 24 of the butt connector 22 that also directly is held in central processing unit 20 in this profile groove 12, thereby the radiator 10 and the upper surface of central processing unit 20 are fit together.But because radiator generally uses aluminum material, its material is softer, deforms easily in the process of profile groove or ruptures, and produces fraction defective and increases thereby cause, and is quite uneconomical.

Moreover, in order to strengthen heat radiation, the method of also available increase radiator volume satisfies radiating requirements, industry adds a stuck-module (Retention Module usually around chip module, can be with reference to Fig. 2) fix the radiator of large volume, even can not match with this stuck-module and detain and hold, the demand of its obvious incompatibility industry development and amplify according to the structure of above-mentioned elastic fastener 14.

Therefore, how to improve the holding structure of radiator, and reach the manufacturing process of simplifying radiator structure and radiator reducing cost, and the growth requirement that adapts to the industry product with improve purposes such as product competitiveness, remain to propose one in fact and break through the scheme that solves.

[summary of the invention]

The purpose of this utility model is to provide a kind of buckling device easy to operate, simple in structure, and it can reduce the radiator procedure, reduce the radiator manufacturing cost, and then adapts to the growth requirement and raising product competitiveness of industry.

The purpose of this utility model is achieved through the following technical solutions: a kind of buckling device that the heat generating component on radiator and the circuit board is abutted together of being used for, comprise that a pair of deduction part and is buckled in the clinching part of deduction part one end, wherein each deduction part centre is offered an elongated slot, be formed with the upper surface that shell fragment is used for replacing radiator in this elongated slot, one end of this deduction part is provided with a clamping part, the relative other end then is bent to form a button arm downwards, and the free end of this button arm forms a clasp and is used for fastener on the stuck-module on the circuit board; Offer a pair of snapping that is used on this clinching part and hold the opening of the clamping part of above-mentioned deduction part, the two ends of this clinching part form a button arm respectively downwards, the free end of this button arm forms a clasp and is used for fastener on the stuck-module on the circuit board, thereby easily radiator is fitted on the heater element.

Owing to adopted technique scheme, the utility model buckling device has easy to operate, advantage of simple structure, and can reduce radiator procedure, reduction radiator manufacturing cost, and then adapts to the growth requirement and raising product competitiveness of industry.

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

[description of drawings]

Fig. 1 is the three-dimensional exploded view of existing buckling device and associated component.

Fig. 2 is the three-dimensional exploded view of the utility model buckling device and associated component.

Fig. 3 is the assembly drawing of the utility model buckling device and associated component.

[embodiment]

See also Fig. 2, the utility model buckling device 30 be by with circuit board 60 on the buckle of stuck-module 62, the radiator 70 of a large volume is fitted in the upper surface of the central processing unit 20 that is positioned on the circuit board 60.In order to strengthen cross-ventilation, the fan of being set up 80 also can be locked on this buckling device 30.

This stuck-module 62 is a quadra structure, and it can be fixed on the circuit board 60 by general usual way such as screw lock, and this central processing unit 20 is positioned at the centre of stuck-module 62.Four angles of stuck-module 62 are projection one fixed leg 64 upwards respectively, and each fixed leg 64 all forms a fastening hole 66.These radiator 70 sizes are similar with stuck-module 62, can be placed in the stuck-module 62, and it comprises the radiating fin 74 that a heat absorption bottom 72 and plurality of rows are extended vertically upward from heat absorption bottom 72.

This buckling device 30 comprises an a pair of deduction part 32 and a clinching part 52, each deduction part 32 forms an elongated slot 34 in the centre position, in this elongated slot 34, be provided with a pair of dashing and establish the downward relatively shell fragment 36 of formation, on the plane for the common formation of the some radiating fins that are pressed on radiator 70 institute by one.Also be provided with by taking out the circular hole 38 that the tooth flange forms at the place, two ends of this deduction part 32, can fan 80 be locked on buckling device 30 by screw 82.Certainly, this circular hole 38 also can be only pass for screw 82, makes two adjacent radiating fins 74 of screw 82 and radiator 70 sealed afterwards, and makes fan 80 lockings on radiator 70.One end of this deduction part 32 further forms a clamping part 42, this clamping part 42 is provided with open slot 44 so that the space of clamping part 42 strains to be provided, and the both sides of this clamping part 42 are respectively equipped with a recess 46, the other end of this deduction part 32 then is bent to form a button arm 47 downwards, the free end of this button arm 47 is provided with a clasp 48, this clasp 48 is (can certainly directly be bent inwards by free end and form) that bend inwards and form by the fin of detaining arm 47 free end both sides, but these clasp 48 fasteners are in the fastening hole 66 of stuck-module 62.In addition, this is made as arcs of recesses to a relative side in deduction part 32 dual-sides respectively with respect to fan 80 in order to strengthen ventilation effect.This clinching part 52 is in the place of the width of two fixed legs 64 in opposite directions of corresponding said fixing module 62, is provided with two openings 54 that are used to hold the clamping part 42 of above-mentioned deduction part 32.The two ends of this clinching part 52 also form a button arm 56 downwards respectively, and the free end of this button arm 56 also is provided with a clasp 57, this clasp 57 is (can certainly directly be bent inwards by free end and form) that bend inwards and form by the fin of detaining arm 56 free end both sides, but these clasp 57 fasteners are in the fastening hole 66 of stuck-module 62.Top at this clinching part 52 further outwards is bent with a press section 59, to make things convenient for this buckling device 30 of manual manipulation.

During these buckling device 30 assemblings, the open slot 44 of the clamping part 42 of deduction part 32 is inserted in the opening 54 of clinching part 52 by compression, loosen open slot 44 then and make its elastic return, even clinching part 52 snaps into position can be used in the recess 46 of the clamping part 42 of deduction part 32.And when specifically using this buckling device 30, shell fragment 36 with the deduction part 32 of this buckling device 30 is pressed on the radiating fin 74 of radiator 70 earlier, the clasp 48 that makes deduction part 32 then is interlocked with the fastening hole 66 of the fixed leg 64 of stuck-module 62, and then the fastening hole 66 of the clasp 57 that press section 59 application of forces of clinching part 52 is made clinching part 52 and other fixed leg 64 of stuck-module 62 is interlocked, cause simultaneously deducting part 32 shell fragment 36 compressive deformations and force in radiator 70, the heat absorption bottom 72 of radiator 70 is closely snapped together mutually with central processing unit 20.

Claims (10)

1. buckling device, comprise that the fastener and that balances or cancel each other at least is buckled in the clinching part of deduction part one end, it is characterized in that: the centre of each deduction part offers an elongated slot, form shell fragment in this elongated slot downwards, one end of this deduction part forms a clamping part, and relatively the other end is bent to form a button arm downwards, offers at least two openings that are used for holding the clamping part of above-mentioned deduction part on the clinching part, and this clinching part also forms a button arm downwards corresponding to each deduction part.

2. buckling device as claimed in claim 1 is characterized in that: the place, nearly two ends of this deduction part is formed with the circular hole of using for fan attachment.

3. buckling device as claimed in claim 2 is characterized in that: this circular hole forms by taking out the tooth flange.

4. buckling device as claimed in claim 1 is characterized in that: a side of this deduction part is the arc that is beneficial to ventilation.

5. buckling device as claimed in claim 1 is characterized in that: the top of this clinching part further is bent with a press section.

6. as claim 1,2,3,4 or 5 described buckling devices, it is characterized in that: offer an open slot on the clamping part of this deduction part.

7. buckling device as claimed in claim 6 is characterized in that: the clamping part two ends are respectively equipped with a recess that is used for snaps into position clinching part.

8. buckling device as claimed in claim 6 is characterized in that: the shell fragment in this deduction part elongated slot is by forming by two integrally formed downward shell fragments of punching press.

9. buckling device as claimed in claim 6 is characterized in that: the free end of the button arm of each deduction part further is provided with a clasp.

10. buckling device as claimed in claim 6 is characterized in that: the free end of the button arm of this clinching part further is provided with a clasp.

Images