CN2503605Y

CN2503605Y - Heat sink fastener

Info

Publication number: CN2503605Y
Application number: CN 01243013
Authority: CN
Inventors: 陈俊吉
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2001-08-01
Filing date: 2001-08-01
Publication date: 2002-07-31
Anticipated expiration: 2011-08-01

Abstract

A buckle of a heat radiator is formed by a bent elastic metal spring strip. A horizontal pressing part is arranged at the center, one end of the pressing part is bent to form a first arm part and a second arm part extending in a reverse direction, and after the first arm part is extended from one end of the pressing part to one side and vertically bent for a certain distance, and folded back towards the pressing part and extended in parallel; the second arm part is formed by being extended of the tail end of the first arm part to the other side of the pressing part. The other end of the pressing part is also bent to form the first arm part and the second arm part extending in a reverse direction, and the first arm part and the second arm part of the end are reverse to the extending direction of the first arm part and the second arm part.

Description

Fastener of heat sink

[technical field]

The utility model is about a kind of fastener of heat sink, particularly about a kind of fastener of heat sink that fastens firmly and save material.

[background technology]

Usually the fastener of heat sink of confession the computer-internal heat-generating electronic elements heat transmission that adopts as shown in Figure 1, this fastener of heat sink can press from both sides shape thing 2 by one and be installed in advance on the radiator 3.This fastener of heat sink 1 is formed by metallic rod body bending, it has a horizontal pressure section 11 and reaches from these pressure section 11 two ends respectively the arm 12 that roughly reverse vertical bending is extended, the end of each arm 12 extends a fastener portion 13, by the hook between fastener portion 13 and associated component (figure does not show), be about to radiator 3 and closely adhere on electronic component (figure does not show) end face.But, the common fastener of heat sink 1 of this design that adopts, its fastener portion 13 by two arms 12 and associated component be hook mutually, so its button holds the strength deficiency, fastens built on the sand, and operation effort, easy damaged are pointed.Hold strength for the button that improves fastener, the fastener that industry is made Metallic rod is used the sheet metal manufacturing instead.But this improved fastener consume material makes manufacturing cost too high.

[summary of the invention]

The purpose of this utility model is to provide a kind of fastener of heat sink firm and the saving material that fastens.

For reaching the above-mentioned purpose that goes up, the utility model has adopted following technical scheme: the utility model fastener of heat sink is formed by elastic metallic spring bar bending, its central authorities have a horizontal pressure section, one end of this pressure section is bent to form first arm and second arm that is reverse extension, this first arm from an end of this pressure section after a segment distance is extended in the upwards vertical bending of one skew back, more back to this pressure section bending and extend in parallel and form; And this second arm from the end of this first arm to the opposite side of this pressure section obliquely vertically bending extend and form.The other end of this pressure section also is bent to form first arm and second arm that is reverse extension, and should the end first arm and second arm bearing of trend with aforementioned first arm and second arm is opposite respectively.

Compared with prior art, therefore the utility model fastener of heat sink fastens firmly by two first arms and two second arms and associated component or structure hook mutually; In addition, the utility model fastener of heat sink is formed by the bending of medal spring bar, therefore saves material.

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

[description of drawings]

Fig. 1 is the fastener of heat sink of employing usually and the three-dimensional exploded view of radiator.

Fig. 2 is the three-dimensional exploded view of the utility model fastener of heat sink and radiator.

Fig. 3 is the stereogram of the utility model fastener of heat sink.

Fig. 4 is the three-dimensional combination figure of the utility model fastener of heat sink and radiator.

[embodiment]

See also Fig. 2, the utility model fastener of heat sink 10 is used for a radiator 20 is closely adhered on heat-generating electronic elements (figure does not show) end face.This radiator 20 has a pedestal 22 and some radiating fins 24 that is arranged on these pedestal 22 surfaces, be provided with groove 26 between each radiating fin 24, the adjacent two row's radiating fins 242,244 that wherein are positioned at central authorities are lower, and its appropriate position, outside is convexly equipped with out a projection 246 respectively.In the groove 26 of this fastener of heat sink 10 between radiator 20 radiating fins 242,244, and be positioned at exactly on the radiator 20 by a fastening convex side 30.This fastening convex side 30 roughly is M shape, itself and the projection 246 of radiator hook mutually, thus be set in radiating fin 242,244 tops (seeing also Fig. 4) of radiator 20.

Please together consult Fig. 3, this fastener of heat sink 10 is formed by elastic metallic spring bar bending, roughly be " worker " shape, its central authorities have a horizontal pressure section 12, one end of this pressure section 12 is bent to form first arm 14 and second arm 16 that is reverse extension, this first arm 14 from an end of this pressure section 12 after a segment distance is extended in the upwards vertical bending of one skew back, back bend and extend in parallel again and form to this pressure section 12, and this first arm 14 back forms first clasp 142 that slightly is in the shape of the letter V to this pressure section 12 bending places, with associated component (figure does not show) hook; And this second arm 16 from the end of this first arm 14 to the opposite side of this pressure section 12 obliquely vertically bending extend and form, and its terminal second clasp 162 that is in the shape of the letter V that forms, with associated component (figure does not show) hook mutually.The other end of this pressure section 12 also is bent to form first arm 14 and second arm 16 that is reverse extension, and should the end first arm 14 and second arm 16 bearing of trend with aforementioned first arm 14 and second arm 16 is opposite respectively.

Please together consult Fig. 4,, therefore partly be connected, so that the application of force when fastening with the pressing body 18 of plastics at the terminal of this second arm 16 and pressure section 12 because second arm 16 of the utility model fastener of heat sink 10 application of force in application of force process is inconvenient.

Claims

1. fastener of heat sink, form by elastic metallic spring bar bending, it comprises a pressure section, a pair of first arm and a pair of second arm, it is characterized in that: this to first arm from the two ends of this pressure section respectively to its both sides after vertically a segment distance is extended in bending obliquely, more back to this pressure section bending and extend in parallel and form; Should extend to these pressure section two lateral bucklings by this end respectively second arm and form first arm.

2. fastener of heat sink as claimed in claim 1 is characterized in that: this fastener of heat sink roughly is " worker " shape.

3. fastener of heat sink as claimed in claim 1 is characterized in that: this pressure section is a level.

4. fastener of heat sink as claimed in claim 1, it is characterized in that: each first arm from an end of this pressure section after a segment distance is extended in the upwards vertical bending of one skew back, again back to the bending of this pressure section and extend in parallel and form, and back form one and be used for and associated component first clasp of hook mutually to this pressure section bending place.

5. fastener of heat sink as claimed in claim 1 is characterized in that: each second arm from the end of its corresponding first arm to the opposite side of this pressure section obliquely vertically bending extend and form.

6. as claim 1 or 5 described fastener of heat sink, it is characterized in that: each second arm terminal partly extends one respectively and is used for and associated component second clasp of hook mutually.

7. fastener of heat sink as claimed in claim 1 is characterized in that: the terminal part of this second arm and pressure section is connected with the pressing body of plastics.