Electrical connector assembly with heat dissipating device

1. Field of the invention

The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly with a heat dissipating device to efficiently dissipate heat generated from a package mounted within the electrical connector assembly.

2. Description of the prior art

An electrical connector is widely used in electrically connecting a package and a printed circular board. A heat dissipating device is needed to be put on the package seated in the electrical connector, otherwise the electrical connector will not normally work and may destroy the package. Example for this kind of the electrical connector assembly is disclosed in U.S. patent application Ser. No. 2008-0291638, the electrical connector assembly comprises an electrical connector, an electrical package received in the electrical connector, a dissipating device mounted upon the electrical package and a latching pieces retaining the dissipating device. The dissipating device comprises a base and two heat pipes fixed to a bottom side of the base. The latching pieces has a main body pressing the dissipating device against the electrical package and four latching feet bent downwardly from four corners the latching pieces and located outside of the electrical connector. Each latching feet has a hole, a bolt passes through the hole to fix the latching pieces on the printed circular board. However, when one bolt firstly mount one latching feet to the printed circular board, the other three latching feet will rise upwardly, so the four bolts must be assembled at one time with adjusted directions to prevent the latching pieces from rising upwardly, that will result the electrical connector assembly needs a long time to assemble. Furthermore, if the latching pieces is not properly assembled, the electrical package will be pressed by an unbalanced force and may be destroyed.

Therefore, there is a need to supply an improved electrical connector assembly with a heat dissipating device.

An object of the present invention is to provide an electrical connector assembly with a heat dissipate device which can improve an assembly efficiency.

In order to achieve the object set forth, an electrical connector assembly comprises: a printed circular board; an electrical connector mounted on the printed circular board; and a heat dissipating device mounted upon the electrical connector and comprising a supporting body fixed with heat pipes and at least one latching piece pressing downwardly the supporting body, the latching pieces defining a hole on each end thereof for a bolt passing through to fix the latching piece on the printed circular board. The latching piece has a fixing portion abutting against the supporting body and riveting with the supporting body.

FIG. 1 is an assembled, perspective view of an electrical connector assembly in a preferred embodiment according to the present invention;

FIG. 2 is a partially exploded, perspective view of the electrical connector assembly shown in FIG. 1 ;

FIG. 3 is an exploded, perspective view of the electrical connector assembly shown in FIG. 2 ; and

FIG. 4 is a section view of the electrical connector assembly in FIG. 1 .

Reference will now be made to the drawings to describe the present invention in detail.

Referring to FIGS. 1-3 , an electrical connector assembly 100 of present invention comprises a printed circular board 1 , a backplane 5 located under the printed circular board 1 , an electrical connector 2 mounted on the printed circular board 1 , an electrical package 3 received in the electrical connector 2 , a heat dissipating piece 6 mounted upon the electrical package 3 and a heat dissipating device 4 disposed upon the heat dissipating piece 6 .

The printed circular board 1 defines four through holes 10 . The backplane 5 is mounted under a bottom face of the printed circular board 1 , and the backplane 5 has four mounting holes 50 corresponding to the through holes 10 of the printed circular board 1 . Bolts 12 can assemble the heat dissipating device 4 , the printed circular board 1 and backplane 5 together.

The electrical connector 2 comprises an insulative housing 20 and a plurality of contacts (not shown) received in the insulative housing 20 for electrically connecting the electrical package 3 and the printed circular board 1 .

Referring to FIGS. 2-3 , the heat dissipating piece 6 is mounted upon the electrical package 3 , to transmit heat of the electrical package 3 produced in working to a corresponding part of the heat dissipating device 4 . The heat dissipating device 4 presses a top surface of the heat dissipating piece 6 , and comprises a supporting body 40 with an approximate quadrate shape, two latching pieces 44 disposed upon the supporting body 40 to retain the heat dissipating piece 6 to the printed circular board 1 , two heat pipes 43 soldered on the supporting body 40 . The supporting body 40 has four supporting potions 45 provided on a front end and a back end of each of two opposite sides thereof, respectively, and extending downwardly to set on the printed circular board 1 . A receiving slot 46 is defined between two adjacent supporting portions 45 for receiving a corresponding part of the electrical connector 2 . The supporting body 40 has a top surface with two opposite sides, a post 41 is formed on a middle part of each of the two opposite sides, the supporting body 40 defines two through slots 42 between the two opposite sides for receiving and retaining the heat dissipating pipes 43 . The latching piece 44 has a fixing portion 440 and two spring portions 441 extending upwardly from two opposite ends of the fixing portion 440 . The fixing portion 440 has a hole 445 in a center part thereof for receiving and riveting with the post 41 , a connecting portion 443 is bent downwardly and inwardly from a free end of the spring portion 441 . The spring portion 441 has a first circular hole 442 and a second circular hole 444 defined on the connecting portion 443 , the first circular hole 442 has a diameter bigger than that of the second circular hole 444 and is located above the second circular hole 444 , the bolts 12 can pass through the first and the second circular holes 442 , 444 .

When assembly, firstly solder the heat dissipating pipes 43 within the through slots 42 of the supporting body 40 ; then assemble the supporting body 40 with the latching pieces 44 by riveting the posts 41 of the supporting body 40 with the holes 445 of the fixing portions 440 of the latching pieces 44 ; after that, mount the electrical connector 2 on the printed circular board 1 , put the electrical package 3 in the insulative housing 20 , then mount the heat dissipating piece 6 upon the electrical package 3 , put the assembled heat dissipating device 4 upon the dissipating piece 6 ; in the end, the bolts 12 pass through the first circular holes 442 and the second circular holes 444 of the latching pieces 44 and the through holes 10 of the printed circular board 1 and mounting holes 50 of the backplane 5 to assemble the electrical connect assembly 100 together.

When the bolts 12 fix the heat dissipating device 4 to the printed circular board 1 and the backplane 5 together, since the post 41 of the supporting body 40 rivets with the hole 445 of the fixing portion 440 of the latching piece 44 , the fixing portion 440 of the latching piece 44 always abuts against the supporting body 40 by a surface contacting, when one connecting portion 443 is pressed downwardly, a corresponding spring portion 441 will also move downwardly, but the fixing portion 440 is unmoved, so the opposite connecting potion 443 will be not rise upwardly, thus the bolts 12 can be locked into the latching pieces 44 one by one not at one time.

The fixing portion 440 of the latching piece 44 rivets with the supporting body 40 and keeps abutting against the supporting body 40 , so no matter the bolts 12 firstly locks which connecting portion 443 of the latching pieces 44 , the other connecting portion 443 will not rise upwardly, thus the bolts 12 can lock one by one and assure the heat dissipating dive 4 provides a balance force on the electrical package 3 . Furthermore, the fixing portion 440 also can be fastened to the supporting body 40 by another mechanically connecting meatheads such as soldering.

Although the present invention has been described with reference to particular embodiments, it is not to be construed as being limited thereto. Various alterations and modifications can be made to the embodiments without in any way departing from the scope or spirit of the present invention as defined in the appended claims.