CN201063959Y

CN201063959Y - CPU support seat fixing device

Info

Publication number: CN201063959Y
Application number: CNU2007201422862U
Authority: CN
Inventors: 杜朝楠
Original assignee: Kuang Ying Computer Equipment Co Ltd
Current assignee: Kuang Ying Computer Equipment Co Ltd
Priority date: 2007-04-30
Filing date: 2007-04-30
Publication date: 2008-05-21
Anticipated expiration: 2017-04-30

Abstract

The utility model relates to a CPU support fastening device which comprises an expansion pin and a male pin, wherein, the expansion pin can pass through a hole arranged on a CPU support and a through hole arranged on a circuit board, and then the male pin is sleeved into the expansion pin the cylinder pile of which is made to be expanded outwards, thereby a barb arranged on a free end of the cylinder pile is made to fasten the edge of the through hole of the circuit board, and the aim of fastening the CPU support on the circuit board is achieved. The utility model has the advantages of simple and convenient operation, low cost and capability of obtaining stable assembly effect.

Description

CPU supporting seat fixture

Technical field

The utility model relates to a kind of device that can fast the CPU supporting seat be fixed in circuit board.

Background technology

The heat abstractor that present industrial circle is adopted at central processing unit (CPU) (CPU), chip or high thermal source product, be to utilize aluminium material (or other suitable material) radiator pedestal to be contacted with the thermal source on the circuit board mostly with high heat transfer efficient, with with heat absorption and be delivered to and plant on the fin of pedestal, utilize the fan of being located on this radiator to blow out cold air again the heat on the fin is got rid of.

At present, the mode that described heat abstractor is assembled on the circuit board has several, as shown in Figure 5, be traditionally at the installation of relatively large heat abstractor, the CPU supporting seat 3 of one shaped as frame can be set on circuit board 4 earlier, make CPU plug socket 6 be arranged in the inside diameter ranges of this CPU supporting seat 3, so that the heat abstractor (not shown) of utilizing fastener will comprise radiator and fan again is fixed in this CPU supporting seat 3, radiator is contacted with the CPU upper surface that is inserted in plug socket 6.

Fig. 5 shows that equally traditional C PU supporting seat is installed in the structure on the circuit board, be a plurality of holes 31 and through hole 41 that mutual correspondence is set respectively on CPU supporting seat 3 and circuit board 4, when CPU supporting seat 3 is placed on the circuit board 4 and makes 41 pairs of hole 31 and through holes seasonable, utilize screw 5 to pass this hole 31 and through hole 41 again, cooperate nut to lock in the screw that passes circuit board again, so that CPU supporting seat 3 is fixed on the circuit board.

Pass through screw and the nut of aforementioned conventional are assembled in the structure of circuit board because trouble comparatively, can't further reduce production costs and dismounting and change or also more time-consuming when assembling again in the future so packaging efficiency is lower with the CPU supporting seat.

The utility model content

Main purpose of the present utility model is to provide that a kind of that the CPU supporting seat is installed on circuit board is more convenient, quick, can obtain the fixture of firm assembling effect again.

The fixture of CPU supporting seat provided by the utility model, include an expansion pin and a pin, this expansion pin can be passed set through hole on set hole of CPU supporting seat and the circuit board, then pin is inserted in this expansion pin, allow the tubing string of expansion pin expand toward the outside, be located at the edge that the free-ended barb of tubing string fastens the through hole of circuit board thereby make, reach the purpose that the CPU supporting seat is fixed in circuit board.

The utility model is about the technological means of described expansion pin, be it to be made as have a headstock, one end of this headstock extends axially a tubing string, this tubing string is provided with axially extended profile groove, and the free end of this tubing string external diameter is provided with barb, tubing string outer surface between this barb and this headstock is provided with bulge loop, and the central authorities of this expansion pin are provided with the centre bore that connects this headstock and tubing string;

Described pin then has a roofbolt that can be inserted in this centre bore and described tubing string is expanded, and an end of this roofbolt is provided with the cap head of an external diameter greater than this roofbolt external diameter.

The utility model utilizes the tubing string of expansion pin to pass the hole of CPU supporting seat and the through hole of circuit board, again the roofbolt of pin is inserted in the centre bore of expansion pin, when the tubing string of expansion pin is expanded toward the outside, utilize the free-ended barb of tubing string to fasten the edge of the through hole of circuit board, allow the CPU holder be fixed on the circuit board.

Another technological means of the present utility model, the centre bore that is described expansion pin is a rectangle, the roofbolt profiled outline of pin then is to shape that should centre bore, and the outer surface of this roofbolt has teat, therefore, when pin is inserted in the centre bore of expansion pin, utilized this teat to promote tubing string toward outside expansion; And pin is taken out from expansion pin, then utilize the elastic recovery original state of tubing string itself, allow barb remove and the CPU supporting seat can be unloaded from circuit board the buckle of circuit board.

A technological means more of the present utility model is to form lead angle in the roofbolt end of described pin, makes pin can be inserted in the centre bore of expansion pin easily.

Utilize the described CPU supporting seat of technical solutions of the utility model fixture, it is easy and simple to handle, and cost reduces, and can obtain firm assembling effect.

Description of drawings

Fig. 1 is fixed in the embodiment stereogram of circuit board for CPU supporting seat described in the utility model;

Fig. 2 is fixed in the embodiment section plan of circuit board for CPU supporting seat described in the utility model;

Fig. 3 is the expansion pin that fixture described in the utility model comprised and the embodiment stereogram of pin feature;

Fig. 4 is the expansion pin that fixture described in the utility model comprised and the embodiment section plan of pin feature;

Fig. 5 is the three-dimensional exploded view of the package assembly of traditional C PU supporting seat and circuit board.

Embodiment

Below cooperate and graphic embodiment of the present utility model is done more detailed description, have the knack of this skill person and can implement according to this studying the present specification postscript carefully in order to do making, wherein, the identical identical assembly of element numbers representative.

Fig. 1 and Fig. 2 utilize fixture of the present utility model that CPU supporting seat 3 is installed on embodiment on the circuit board 4 for showing.Fig. 3 and Fig. 4 show that described fixture includes an expansion pin 1 and a pin 2, the preferred embodiment of this expansion pin 1 is it to be made as have a larger-diameter headstock 10, one end of this headstock 10 extends axially the tubing string 12 of the less relatively and hollow of a diameter, this tubing string 12 is provided with an axially extended profile groove 123 at least, and the free end of these tubing string 12 external diameters is provided with barb 121, tubing string 12 outer surfaces between this barb 121 and this headstock 10 are provided with bulge loop 122, and the central authorities of this expansion pin 2 are provided with the centre bore 11 that connects headstock 10 and tubing string 12; Described centre bore 11 is made as rectangle at embodiment of the present utility model.

2 of described pins have a roofbolt 22 that can be inserted in this centre bore 11, therefore, the section external diameter profile of this roofbolt 22 be to should centre bore 11 rectangular-shaped, one end of this roofbolt 22 is provided with the cap head 21 of an external diameter greater than these roofbolt 22 external diameters, the relative both sides of described roofbolt 22 are provided with teat 221, relative both sides in addition then are provided with the slotted eye 23 of perforation, be provided with a side-prominent outward elasticity projection 24 in this slotted eye 23, the preferred embodiment of this elasticity projection 24, can with the one end directly and the lower end of slotted eye 23 one-body molded, the other end is a free end then, uses to make projection 24 possess elasticity.The free end of described roofbolt 22 also is formed with lead angle 25, makes it possible to more easily roofbolt 22 is inserted in centre bore 11.

Fig. 1 to Fig. 4 utilizes fixture described in the utility model CPU supporting seat 3 to be fixed in the mode of circuit board 4 for showing, be to utilize the tubing string 12 of expansion pin 1 to pass the set through hole 41 of the set hole 31 of CPU supporting seat 3 and circuit board 4, after making its barb 121 pass through hole 41, again the roofbolt 22 of pin 2 is inserted in the centre bore 11 of expansion pin 1, thereby utilize teat 221 to act on the internal diameter of centre bore 11 and make tubing string 12 toward outsides expansion, and then make tubing string 12 free-ended barbs 121 fasten through hole 41 edges of circuit board 4, allow CPU holder 3 be fixed on the circuit board 4.The effect of described projection 24, be to be after roofbolt 22 is inserted in centre bore 11, rubber-like projection 24 is compressed, and the upper end backward shift of crossing profile groove 123 up to projection 24 and utilizes this projection 24 to avoid pin 2 arbitrarily to break away from expansion pin 1 to profile groove 123 and flick.

When desire with CPU supporting seat 3 when circuit board unloads, then as long as pin 2 is taken out from expansion pin 1, just can utilize the elastic recovery original state of tubing string 12 itself, allow barb 121 remove and CPU supporting seat 3 can be unloaded from circuit board 4 buckle of circuit board 4.

By the detailed description of above preferred embodiment, hope can be known description feature of the present utility model and spirit more, and is not to come category of the present utility model is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain various changes and equivalents in the category of the claim of the utility model institute desire application.

Claims

1. a CPU supporting seat fixture is characterized in that, includes:

One expansion pin, has a headstock, one end of described headstock extends axially a tubing string, described tubing string is provided with axially extended profile groove, and the free end of described tubing string external diameter is provided with barb, tubing string outer surface between described barb and the described headstock is provided with bulge loop, and the central authorities of described expansion pin are provided with the centre bore that connects described headstock and tubing string;

One pin has a roofbolt that can be inserted in described centre bore and described tubing string is expanded, and an end of described roofbolt is provided with the cap head of an external diameter greater than described roofbolt external diameter.

2. CPU supporting seat fixture as claimed in claim 1 is characterized in that described centre bore is a rectangle, and the profiled outline of described roofbolt is the shape of corresponding described centre bore, and the outer surface of described roofbolt has teat.

3. CPU supporting seat fixture as claimed in claim 2 is characterized in that the end of described roofbolt has lead angle.