CN2349605Y

CN2349605Y - Improved radiator snap fastener

Info

Publication number: CN2349605Y
Application number: CN 98204652
Authority: CN
Inventors: 朱锦宏
Original assignee: QIHONG CO Ltd
Current assignee: QIHONG CO Ltd
Priority date: 1998-05-19
Filing date: 1998-05-19
Publication date: 1999-11-17
Anticipated expiration: 2008-05-19

Abstract

The utility model relates to an improved fastening device for a heat radiating fin, composed of a main body and a fastening and holding sheet. A concave part is arranged on the main body at a proper place; one side edge of the concave part is provided with a fastening sheet; the terminal end of the fastening sheet is provided with a hook part with a proper angle; the other side of the concave part is provided with a fastening and fixing groove. The top end of the buckling and holding sheet is provided with a flat pressing and stopping part. The groove and the fastening hole of the main body are arranged at the lower part of the pressing and stopping part. When a heat radiating fin is assembled, the fastening hole is fastened with a fastening and connecting part which is arranged at the top end of a fastening box. The fastening sheet penetrates through the heat radiating fin, the circuit board of a CPU and a corresponding punch hole which is arranged on the fastening box; the heat radiating fin is tightly attached to the surface of the CPU; moreover, the punch hole of the fastening box is provided with an embedding part corresponding to the angle of the hook part.

Description

The improvement of heat radiator buckling device

The utility model is about the improvement of a kind of heat radiator buckling device, refers to that especially a kind of buckling device establishes when being fastened on the card casket in group, hook portion can be hidden in the card casket housing, prevents the design that buckling device comes off.

Press, computer Pentium II (PENTIUM II) (calling the P II in the following text) mainly is to put on the shelf in a circuit board to be provided with a central processing unit (CPU) and the outside is got memory (EXTERNAL CACHE) soon, then encapsulate outside it with plastic grid welding stage array (PLGA-PLASTICLAND-GRID ARRAY), and combine with motherboard in the mode of card casket golden finger connector, yet the PLGA encapsulation process step of CPU processing is loaded down with trivial details and take day when spacious, add so encapsulate and promoted the price of CPU, this makes computer manufacturer not only need waiting for CPU, and the relative price that can't reduce computer reduces competitive power and market share, significantly reduce business opportunity, therefore for release the circuit board type CPU of no PLGA encapsulation in response to this kind situation.This kind CPU does not promptly need again through the PLGA encapsulation process, can significantly shorten the time of making the product of CPU, but because of its thickness far is thinner than the PLGA encapsulation, can't be installed on the existing C PU group frame at all, more not having any suitable buckling device combines with heat radiator, therefore truly have exigence to propose the member of a power circuit board type CPU and heat radiator assembling, just can reach and use circuit board type CPU to save cost, the purpose of time.

Edge this, fundamental purpose of the present utility model promptly provides the improvement of a kind of heat radiator buckling device, it can prevent buckling device distortion and escape.

A kind of heat radiator buckling device improvement of the utility model, by referring to a kind of structure of central processing unit (CPU) circuit board being done the combined type encapsulation, formed by buckling device, card casket, cpu pcb, grip block, heat radiator, this card casket is to be the casket body of a tool open space in order to the installing cpu pcb, is provided with the pertusate reference column of two pairs of correspondences; This cpu pcb is respectively equipped with a perforation with respect to aforementioned reference column position; This grip block is to be matched with in the card casket is held on cpu pcb; This heat radiator is provided with the passage of no fin, and is provided with perforation in passage with respect to aforementioned reference column place; This buckling device is held sheet by a main body and button and is formed, and the appropriate location of this main body is concaved with a recess, makes the main body both sides have elasticity, and the one lateral margin is bent with cramp, and opposite side is formed with the fixing slot that gos deep into the main body appropriate location and establishes button in order to group and hold; The top that this button is held sheet is established and is formed with the compression part that is plane, is provided with group in appropriate position, compression part below and establishes the groove and the button hole of main body; Its feature exists: the end of aforesaid cramp is bent with the hook portion at suitable angle of inclination; The top on this card casket top is provided with snapping portion with respect to the reference column position male, and the perforation that is positioned at card casket lower edge has with respect to the hook portion angle and is arranged with in the portion that is embedded of card casket housing; Aforesaid button hole is the set snapping portion in card casket top that is held in, and aforesaid cramp passes heat radiator, the corresponding perforation of cpu pcb, and snapping also is hidden in being embedded in the portion of corresponding angle of the perforation of card casket, can further prevent buckling device distortion escape.

For making your juror understand the purpose of this utility model, feature and effect, now by following specific embodiment, and conjunction with figs., the utility model is described in detail, illustrate as after, wherein:

Fig. 1 is assembling stereogram of the present utility model;

Fig. 2 is exploded perspective view of the present utility model;

Fig. 3 is the sectional view after the utility model assembling.

As shown in Figure 1 and Figure 2, be to be assembling stereogram of the present utility model, and exploded perspective view; The utility model includes:

One buckling device 10, holding sheet 12 by a main body 11 and button is formed, the appropriate location of this main body 11 is concaved with a recess 111, make main body 10 both sides have elasticity, the one lateral margin is bent with cramp 112, be bent with the hook portion 113 at suitable angle of inclination in the end of cramp 112, opposite side is formed with the fixing slot 114 that gos deep into main body 11 appropriate locations and establishes button in order to group and hold sheet 12; The top that this button is held sheet 12 is established and is formed with the compression part 121 that is plane, is provided with group in appropriate position, compression part 121 below and establishes the groove 122 and the button hole 123 of main body 11;

One card casket 20, be to be the casket body of a tool open space in order to installing cpu pcb 30, its central part is provided with a protuberance 21 (among Fig. 3), be provided with a salient point 211 in protuberance 21, reach the reference column 22 that is provided with tool perforation 221 in the quadripolar corners place, the perforation 221 that is positioned at card casket 20 lower edges has with respect to aforementioned hook portion 113 angles and is arranged with in the portion that is embedded 222 of card casket 20 housings, and the top of card casket 20 is provided with snapping portion 23 with respect to reference column 22 position male;

In addition, the both sides of this card casket 20 have extended shell fragment 24, are provided with fastener 241 in the appropriate location of shell fragment 24, by contracting in the shell fragment 24 and expansion, when making card casket 20 be inserted in CPU group frame, clasp 241 can the button group or is broken away from the button hole (be the group frame of generally commonly using, graphic draw) of CPU group frame.The top of this shell fragment 24 is provided with pulling part 242, and the root edge of pulling part 242 is provided with a cramp 243, these card casket 20 tops then are provided with relative card article 25, can make cramp 243 stoppers in card article 25 and the position of fixation spring tab 24 by compression shell fragment 24, and the convenience of dismounting is provided.

One cpu pcb 30, its downside is provided with golden finger 31, is located at the slot of motherboard with grafting, and is respectively equipped with a perforation 33 in the end angle of CPU wafer 32 with respect to aforementioned reference column 22 positions.

One grip block 40, be to be matched with in card casket 20 is held on cpu pcb 30, surrounded by the press strip 41 that surrounds the closed region, the briquetting 42 of being located at press strip 41 both sides and golden finger shrouding 43, this press strip 41 and briquetting 42 are matched with around the card casket 20 clamping cpu pcbs 30, make smooth being placed in the card casket 20 of cpu pcb 30 energy, and this golden finger shrouding 43 can be matched with card casket 20 and form the accommodation space of golden finger 31, makes whole outward appearance shape be similar to the PLGA packaging body.

One heat radiator 50, it is provided with the passage 51 of no fin, and is provided with perforation 52 in passage 51 with respect to aforementioned reference column 22 places.

During assembling, earlier buckling device is established one for 10 groups, its assembling mode is button to be held sheet 12 insert in the fixing slot 114, the groove 122 that makes button hold sheet 12 interfixes with fixing slot 114, and can hold sheet 12 as the axle center make-up with this and do reciprocal passing action, and this fixing slot 114 is to go deep into appropriate location in the main body 11, and be formed with a circular hole 115 in end section, be to utilize circular arc to transmit the principle of strength, when button is held sheet 12 insertion fixing slots 114, one elastic-restoring force is provided, makes fixing slot 114 reinstatements and can not produce distortion (after the assembling as shown in Figure 4).Then main body 11 is inserted the set no fin underpass 51 of heat radiator 50, and make one side cramp 112 insert passage 51, the perforation 33 of cpu pcb 30, button is organized in the portion that is embedded 222 of the perforation 221 of card casket 20, force in the pressure that button holds sheet 12 tops again and put portion 121, make button hole 123 be buckled in the snapping portion 23 on card casket 20 tops, so this recess 111 promptly forms one and makes activity supporting point, the button hole 123 and hook portion 113 hooks of both sides invest card casket 20 and promptly form the strength that presses down, even these strength fastener both sides produce bounce, and concentrate on recess 11 places and press down heat radiator 50, heat radiator 50 and CPU wafer 32 are combined closely, reach the purpose of heat radiation.

Because aforementioned hook portion 113 is provided with the angle of inclination of suitable angle, have preferable tensile strength, and this angle of inclination is corresponding with the portion of being embedded 222, when button is held sheet 12 clinchings,, can not produce the phenomenon of distortion escape with the position of the firm hook portion 113 of energy.Again, this is embedded the housing that portion 222 is deep card caskets 20, and hook portion 113 promptly is hidden in the card casket in the assembling back, and other element of motherboard can't be pushed hook portion 113, can make the button group more certain.

In sum, heat radiator buckling device provided by the utility model improvement not only has outside the practical effect, and be new design not seen before, thus met the important document of Patent Law utility model patent, hence in accordance with the law the mere formality application it.

Below the utility model is done one and describe in detail, only the above person only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented.Be that all equalizations of doing according to the utility model application range change and modify etc., all should still belong in the patent covering scope of the present utility model.

Claims

1. heat radiator buckling device improvement, by referring to a kind of structure of central processing unit (CPU) circuit board being done the combined type encapsulation, formed by buckling device, card casket, cpu pcb, grip block, heat radiator, this card casket is to be the casket body of a tool open space in order to the installing cpu pcb, is provided with the pertusate reference column of two pairs of correspondences; This cpu pcb is respectively equipped with a perforation with respect to aforementioned reference column position; This grip block is to be matched with in the card casket is held on cpu pcb; This heat radiator is provided with the passage of no fin, and is provided with perforation in passage with respect to aforementioned reference column place; This buckling device is held sheet by a main body and button and is formed, and the appropriate location of this main body is concaved with a recess, makes the main body both sides have elasticity, and the one lateral margin is bent with cramp, and opposite side is formed with the fixing slot that gos deep into the main body appropriate location and establishes button in order to group and hold; The top that this button is held sheet is established and is formed with the compression part that is plane, is provided with group in appropriate position, compression part below and establishes the groove and the button hole of main body; Its feature exists:

The end of aforesaid cramp is bent with the hook portion at suitable angle of inclination;

The top on this card casket top is provided with snapping portion with respect to the reference column position male, and the perforation that is positioned at card casket lower edge has with respect to the hook portion angle and is arranged with in the portion that is embedded of card casket housing;

Aforesaid button hole is the set snapping portion in card casket top that is held in, and aforesaid cramp passes heat radiator, the corresponding perforation of cpu pcb, and snapping also is hidden in being embedded in the portion of corresponding angle of the perforation of card casket, can further prevent buckling device distortion escape.