CN2567542Y

CN2567542Y - Fastening device

Info

Publication number: CN2567542Y
Application number: CN 02227639
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: 2002-05-17
Filing date: 2002-05-17
Publication date: 2003-08-20
Anticipated expiration: 2012-05-17

Abstract

The utility model provides a buckling device, which comprises a buckle and a frame. The buckle is formed by continuous bending of an elastic metal strip, roughly in the shape of "匚", with a U-shaped fastening part. These first elastic parts are twisted and further extended to form two parallel pressing parts. The other end of each pressing part is bent and twisted several times to form two second elastic parts. When these second elastic parts are bent, an operating part is formed. The operating part is used in conjunction with a force application block for applying force, and the buckle is further bent downward at the end of the operating part to form a pair of clasps, and these clasps and the U-shaped fastening part can be hooked on the on the hook of the frame.

Description

Buckling device

[technical field]

The utility model is about a kind of buckling device, refers to that especially bending forms continuously, simple in structure, button holds evenly firm buckling device of radiator 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 buckling device 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 buckling device of radiator of power.

The purpose of this utility model is achieved through the following technical solutions: the buckling device of the utility model comprises a fastener and a framework.This fastener is bent continuously by a resilient metal strip and forms, roughly be " Contraband " shape, it establishes a U-shaped buckling parts, these buckling parts two ends curve inwardly respectively to extend and reverse some figure and form two first elastic portion, after reversing, these first elastic portion further extend to form two parallel pressing parts, each pressing part other end bends and reverses some figure and forms two second elastic portion, form an operating portion during these second elastic portion bendings, the application of force piece that this operating portion and is used for applying active force is used, this fastener further is bent to form a pair of clasp downwards again at the operating portion end, but these clasps and U-shaped buckling parts fastener are in the fastener portion of this framework.

Hold evenly firm advantage of power owing to adopted technique scheme, the utility model buckling device 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 buckling device and associated component.

Fig. 2 is a three-dimensional combination figure before the utility model buckling device and associated component fasten.

Fig. 3 is the three-dimensional combination figure after the utility model buckling device and associated component fasten.

Fig. 4 is the three-dimensional combination figure of the other direction after the utility model buckling device and associated component fasten.

[embodiment]

Please refer to Fig. 1, the utility model buckling device is cooperated by a fastener 100 and a framework 50, fits tightly a radiator 40 on an electronic building brick 60 surfaces and is retained on the circuit board 70.

At first please refer to Fig. 1, 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, roughly be " Contraband " shape, it is provided with a U-shaped buckling parts 11 and two mutual parallel horizontal pressing parts 12, this U-shaped buckling parts 11 can be fastened in one group of fastener portion 51 of this framework 50, these U-shaped buckling parts 11 two ends upwards curve inwardly respectively to extend and reverse some circles and form first elastic portion 14, after reversing, first elastic portion 14 further extends to form two pressing parts 12, bend and reverse some circles after a bit of distance of the downward extension of each pressing part 12 other end and form second elastic portion 16, form an operating portion 162 during these second elastic portion, 16 bendings, can clamp an application of force piece 80 of being convenient to apply active force when compressing this operating portion 162 between the bending of this operating portion 162 and second elastic portion 16, this fastener 100 further is bent into a pair of clasp 18 downwards again at these operating portion 162 ends, but this is to clasp 18 fasteners another group fastener portion 52 at framework 50.

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 this radiator 40 is placed in this framework 50 and be sticked on electronic building brick 60, install this fastener 100 then on radiator 40, can these horizontal pressing parts 12 be embedded in selectively the groove 45 of this radiator 40 according to the size of fastener 100, in 46, drop-down then this U-shaped buckling parts 11, be elongated by strain takes place after what first elastic portion 14 tensions, thereby this U-shaped buckling parts 11 is moved down and be interlocked with the fastener portion 51 of this framework 50; Again this application of force piece 80 is plugged in second elastic portion 16, and make this application of force piece 80 inconsistent with this operating portion 162, exert pressure to this application of force piece 80 then, the 16 stressed generation elastic deformations of second elastic portion are elongated downwards, this moves down the fastener mutually with second group of fastener portion 52 of this framework 50 to clasp 18, promptly reach assembling, as shown in Figure 3, Figure 4.First elastic portion 14, the 16 stressed generation elastic deformations of second elastic portion fit tightly radiator 40 and this electronic building brick 60 together by the elastic force of replying this deformation generation.

Claims

1. a buckling device, be used for a radiator is fitted tightly to a heating electronic building brick, and be assemblied on the circuit board, it comprises a fastener and a framework, this fastener is bent continuously by resilient metal strip and forms, it is characterized in that: this fastener is established a buckling parts, these buckling parts two ends are provided with through bending and reverse two first elastic portion that some figure form, these first elastic portion ends horizontal-extending respectively form two pressing parts, each pressing part end is provided with through bending and reverses two second elastic portion that some figure form, these second elastic portion ends further are provided with the buckling structure through being bent to form, and this framework is provided with fastener portion, and this buckling structure is held in this fastener portion.

2. buckling device as claimed in claim 1 is characterized in that: this framework is a square plate body, and Qi Sijiao convexes with plates straight up, and these fastener portions are bent to form by these plates ends, and form two groups.

3. buckling device as claimed in claim 1 is characterized in that: this fastener is to be bent continuously by a resilient metal strip to form, and roughly is " Contraband " shape.

4. buckling device as claimed in claim 3 is characterized in that: this pressing part is two parallel pressing parts.

5. buckling device as claimed in claim 1 is characterized in that: this buckling parts roughly takes the shape of the letter U.

6. buckling device as claimed in claim 1 is characterized in that: the buckling structure of the second elastic portion end is a clasp, and these clasps are further to be bent to form downwards by second elastic portion.

7. buckling device as claimed in claim 1 is characterized in that: form an operating portion during this second elastic portion bending.

8. buckling device as claimed in claim 7 is characterized in that: this buckling device also comprises an application of force piece that is used with this operating portion.