CN2551959Y

CN2551959Y - Radiator fastener

Info

Publication number: CN2551959Y
Application number: CN 02227981
Authority: CN
Inventors: 刘后本
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2002-05-30
Filing date: 2002-05-30
Publication date: 2003-05-21
Anticipated expiration: 2012-05-30

Abstract

The utility model provides a radiator fastener used in pairs, which is formed by continuously bending an elastic metal strip which is provided with a horizontal pressing part, wherein both ends of the horizontal pressing part are respectively downward extended with an interval and then are bent and respectively twisted in many rounds for forming a first elastic part and a second elastic part. An operation part is respectively formed when the elastic parts are bent. The operation part and the force applying block for applying force are used cooperatively. The end of the operation part of the fastener is further downward bent as a fastening hook. Moreover, the fastening hooks can be fastened on the fastening part of a framework.

Description

Fastener of heat sink

[technical field]

The utility model is about a kind of fastener of heat sink, refers to that especially bending forms continuously, simple in structure, button holds evenly firm fastener of heat sink of power by resilient metal strip.

[technical background]

Fast lifting along with the electronic building brick operating frequency, the heat that it produced is also increasing, for in time discharging the heat that electronic building brick produced, guarantee its normal operation, with a fastener of heat sink one fastener of radiator is reached preferable radiating effect on electronic building brick usually.

As the 5th, 464, No. 054 patent of the U.S., it discloses a kind of fastener that adopts single medal spring bar to be bent into, this fastener is crossed on the radiator, and the fastener two ends are fastened on respectively under the clinodiagonal circuit board lug of this radiator, thereby this radiator is installed in integrated circuit surface.But, this fastener that forms by an elastic metallic bending, reach fixing with single pressing structure to radiator, holding surface is long-pending little, button is held insecure, under the environment that shakes or rock, might get loose, causing button to hold the strength deficiency does not cause applying situation between radiator and integrated circuit surface good and influence the radiating effect of radiator, and this fastener adopts 2 modes that are fastened in diagonal angle, so it is very limited that the button that produces is held power, radiator firmly can't be sticked in integrated circuit surface, in addition, its button power of holding can't be in response to various uncertainties, for example variation such as different size heat sink size (than relatively large radiator) or fastener material generation permanent deformation is adjusted in good time, causes the market versatility to reduce.

[summary of the invention]

The purpose of this utility model be to provide a kind of by the resilient metal strip Curved Continuous be converted into, simple in structure, button holds evenly firm fastener of heat sink of power.

The purpose of this utility model is achieved through the following technical solutions: the utility model provides a kind of fastener of heat sink that uses that matches, this fastener is bent continuously by a resilient metal strip and forms, it is provided with a horizontal pressing part, these horizontal pressing part two ends extend downwards respectively behind the segment distance bending and respectively the twisting number circle form first elastic portion, second elastic portion, form an operating portion during these elastic portion bendings respectively, the application of force piece that this operating portion and is convenient to be used for to apply active force is used, this fastener further is bent to form a clasp downwards again at the operating portion end, but these clasp fasteners are in the fastener portion of a framework.

Hold evenly firm advantage of power owing to adopted technique scheme, the utility model fastener of heat sink to have simple in structure, button.

[description of drawings]

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

Fig. 1 is the three-dimensional exploded view of the utility model fastener of heat sink and associated component.

Fig. 2 is the three-dimensional combination figure before the utility model fastener of heat sink and associated component fasten.

Fig. 3 is the three-dimensional combination figure after the utility model fastener of heat sink and associated component fasten.

Fig. 4 is the second embodiment stereogram of the utility model fastener of heat sink.

[embodiment]

Please refer to Fig. 1, adopt 100 pairings of the identical fastener of structure and be used, fit tightly a radiator 40 on an electronic building brick 60 surfaces and be retained on the circuit board 70 with a framework 50.

This framework 50 is square plate bodies, available some locking parts are fixed on this circuit board 70, its central authorities offer a square groove 53, this square groove 53 can be used to this electronic building brick 60 of device, four jiaos of this framework 50 are convexly equipped with plates respectively straight up, and these plates ends are bent to form two groups of fastener portions 51 and 52.

This radiator 40 vertically extends some fins 43 that parallel interval is arranged from a horizontal base 41, and these fin 43 ends offer two groups of grooves 45,46, and these grooves 45,46 laterally are arranged in parallel, and parallel with pedestal 41.According to actual operating position, can select one of two groups of grooves 45,46 to combine and this fastener 100 is used.

This fastener 100 is bent continuously by a resilient metal strip and forms, it is provided with a horizontal pressing part 12, these horizontal pressing part 12 two ends extend downwards respectively behind the segment distance bending and respectively the twisting number circle form first elastic portion 14, second elastic portion 16, elastic portion 14,16 form operating portion 142 when bending, 162, this operating portion 142 is between the bending of first elastic portion 14, this operating portion 162 can clamp an application of force piece 80 of being convenient to apply active force between the bending of second elastic portion 16, operating portion 142,162 further are bent into two vertical clasps 17 downwards at vertical direction, 18, these clasps 17,18 can detain the fastener portion 51 that is held in this framework 50, on 52.

Please refer to Fig. 1 and Fig. 2 again, during assembling, earlier this framework 50 is fixed on this circuit board 70, again this electronic building brick 60 is installed in the square groove 53 of this framework 50, then with this radiator 40 devices in this framework 50 and be sticked on electronic building brick 60, then a pair of fastener 100 is installed on this radiator 40, can these horizontal pressing parts 12 be embedded in selectively the groove 45 of this radiator 40 according to the fastener 100 and the size of radiator 40, in 46, the elder generation fixing wherein any one, this application of force piece 80 is plugged in first elastic portion 14, in second elastic portion 16 and with this operating portion 142,162 is inconsistent, exert pressure to this application of force piece 80 then, these elastic portion 14,16 stressed generation elastic deformations are elongated downwards, clasp 17,18 move down two groups of fastener portions 51 with this framework 50,52 phase fasteners, then with another fastener 100 of same step fixing, promptly reach the buckling structure of 100 pairs of radiators 40 of fastener, as shown in Figure 3.When no longer to these elastic portion 14,16 application of forces, these elastic portion 14,16 fit tightly radiator 40 and this electronic building brick 60 together by the elastic force of replying the deformation generation.

Second embodiment of the present utility model, as shown in Figure 4, fastener 100 shown in this fastener 200 and first embodiment, has roughly the same structure, just the bending mode of first elastic portion 24, second elastic portion 26 and

clasp

27,28, reverse the number of turns and torsional direction difference, and the assembling process that this fastener 200 is installed these radiators 40 of fixing is identical with first embodiment.

Claims

1. a fastener of heat sink, one radiator can be fitted tightly to a heating electronic building brick, and be assemblied on the circuit board, this fastener is bent continuously by resilient metal strip and forms, it is characterized in that: this fastener adopts two pairings to use, this fastener is provided with a pressing part, and these pressing part two ends are provided with through bending and reverse the elastic portion that some circles form, and these elastic portion ends further are provided with the clasp through being bent to form.

2. fastener of heat sink as claimed in claim 1 is characterized in that: the elastic portion at these pressing part two ends is respectively first elastic portion, second elastic portion, is to bend and reverse respectively formation after a segment distance is extended at these pressing part two ends respectively downwards.

3. fastener of heat sink as claimed in claim 2 is characterized in that: these clasps are that elastic portion further is bent to form downwards at vertical direction.

4. fastener of heat sink as claimed in claim 3 is characterized in that: these elastic portion form the operating portion that can be used with an application of force piece in when bending.

5. fastener of heat sink as claimed in claim 3 is characterized in that: these clasps can interlock with the fastener portion on the framework and hold.

6. fastener of heat sink as claimed in claim 5 is characterized in that: this framework is established a square plate body, and Qi Sijiao convexes with plates straight up, and these fastener portions are bent to form by the plates end, and forms two groups.