1. Field of the Invention
The present invention relates to an electrical connector assembly, and particularly to a socket connector assembly with a heat sink detachably attached thereon to dissipate heat generated by a CPU mounted within the socket assembly.
2. Description of the Related Art
U.S. Pat. No. 6,442,816 issued to Kao on Sep. 3, 2002 discloses an electrical connector assembly for connecting a CPU (central processing unit) to a circuit board. The electrical connector assembly comprises a socket connector secured at a PCB (printed circuit board), a CPU (central processing unit) assembled in the connector, a heat sink located on a top of the socket connector to dissipate heat generated by the CPU and a clip for securing the heat sink to the socket connector. The socket connector defines an insulative housing having protrusions at opposite sides thereof, and the clip defines through holes at the opposite ends thereof. The clip is retained on the housing by the through holes engaging with the corresponding protrusions to secure the heat sink. But the clip engages with the housing directly, and the connection between the terminals received in the housing and the PCB may be damaged by an excessive engaging force produced by the clip assembling to the housing. Moreover, the clip retained on the housing will force the insulative housing to deform elastically, which also may damage the said connection or the terminals.
Another convention electrical connector assembly includes an insulative housing receiving a plurality of terminals therein, a bottom metal piece and a cover for retaining the housing therebetween, a lever and a clip. The clip for securing a heat sink is retained on the PCB which can prevent the terminals received in the housing from being damaged. But a retaining portion, such as through holes, should be prearranged on the PCB for retaining the clip, which do not satisfy the miniaturization requirement.
Hence, a new design which can secure a heat sink to a CPU mounted on a socket connector is required.
Accordingly, an object of the present invention is to provide an electrical connector assembly for securing a heat sink by a clip engaging with the frame to protect the terminals received in the connector.
In order to achieve the object set forth, an electrical connector assembly includes a frame defining a central opening and with a front portion and a rear portion, an insulative housing securely disposed within the central opening, a cover having hook portions rotatablely assembled in the rear portion of the frame, a lever with a pressing portion pivotally retained to the front portion of the frame to lock the cover against the insulative housing, a heat sink disposed onto the cover and at least one clip for securing the heat sink to the cover. The frame defines locking portions at the front portion and the rear portion thereof, the at least one clip defines a pair of legs and a connecting portion connecting the legs. One leg locks with the locking portion of the front portion and the other leg locks with the locking portion of the rear portion of the frame.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
Reference will now be made to the drawing figures to describe a preferred embodiment of the present invention in detail.
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The clips 5 defined in the present invention are retained to the metal frame 7 instead of being retained to the housing 1, which can prevent the housing 1 from deforming. Moreover, it is no need to prearrange through holes on the PCB to retain the retaining clips 5 as a convention electrical connector assembly, which can satisfy the miniaturization requirement.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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09621531 | Sep 2007 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
6178611 | Boe | Jan 2001 | B1 |
6442816 | Kao | Sep 2002 | B1 |
7497743 | Tsai | Mar 2009 | B2 |
7510418 | Scott et al. | Mar 2009 | B1 |
20080045048 | Ma | Feb 2008 | A1 |
20080153338 | Ju | Jun 2008 | A1 |
20080220643 | Zhang | Sep 2008 | A1 |
Number | Date | Country | |
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20090068875 A1 | Mar 2009 | US |