1. Field of the Invention
The present invention relates to an electrical connector, and more particularly to an electrical connector which is mounted on a printed circuit board (PCB) for receiving an IC package, and which has improved contacts for securing to the PCB.
2. Description of Related Art
Central Processing Unit (CPU) and other electrical package, generally referred to as IC package, commonly works via an electrical connector mounted on a printed circuit board, which includes at least a socket with a number of contacts for electrical connection with the IC package and securing means for fastening the IC package.
U.S. Pat. No. 7,278,860 issued to Hao-Yun Ma on Oct. 9, 2007 discloses such an electrical connector, which is soldered on a printed circuit board to receive an IC package. Referring to
Chinese Patent Issue No. 2427899 issued to He on Apr. 25, 2001 discloses another CPU socket, which includes an insulative housing, a plurality of electrical contacts retained in the housing, a cover plate shielding the insulative housing, and an actuator driving the cover plate to slide on the housing. Each electrical contact includes a base, a retention section upwardly extending from the base, a contact section for contacting with the package, and a tail extending downwardly from the base. The tail is generally inserted into through holes of the PCB and has a rib formed thereon to increase the intensity. However, with the trend of miniature, not only the package turns to smaller, but also the connector and the area of PCB for mounting the connector turn to smaller. Accordingly, the size of the contacts and the through holes on PCB are also decreased. Therefore, the tail received in the through holes becomes easily deformed for the small size.
Thus, there is a need to provide a new electrical connector that overcomes the above-mentioned problems.
Accordingly, an object of the present invention is to provide a burn-in socket with contacts reliably contacting with the IC package.
In order to obtain the object, an electrical connector for electrical connecting package with printed circuit board comprises a socket body, a retention frame adjacent to the socket body, and a load plate attached to the retention frame and capable of rotating toward or away from the socket from an open position to a close position. A plurality of contacts are attached to the socket body and each comprises a base section, a retention section extending upwardly from the base section, a contact section bending from the retention section, and a tail section extending downwardly from the base section. The tail section includes a stick section and a reinforcement section bending from the stick section for increasing the rigidity of the tail section.
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 be made to the drawing figures to describe the present invention in detail, wherein depicted elements are not necessarily shown to scale and wherein like of similar elements are designated by same or similar reference numeral through the several views and same or similar terminology.
Referring to
The IC package is seated to the socket body 2 to make electrical connection with the contacts 6. The load plate 3 is connected with and supported by the retention frame 4. The socket body 2 defines a plurality of passages 20 extending therethrough for receiving the contacts 6. The socket body 2, load plate 3, and retention frame 4 are located on a top side of the printed circuit board 1.
Please referring to
The retention frame 4 is made by punching metal plate and located at one side of the socket body 2 on the printed circuit board 1. The retention frame 4 is arranged at one side of the socket body 2 and spaced from the socket body 2. The retention frame 4 is mounted to the second holes 50 by a pair of second bolts 44. The retention frame 4 has a base (not labeled) and a vertical plate 41 extending upwardly from the base. A pair of holes 40 are defined on the retention frame 4 for the second bolts 44 extending therethrough. The vertical plate 41 defines a pair of recesses 42 and a gap 43 located therebetween. Each second bolt 44 extends through the holes 40, 50 and engages with the screw hole 50 of the back plate 5.
The load plate 3 is hollow and defines an opening (not labeled). The load plate 3 includes a frame 37 and a tongue 30 at a first side of the frame 37. The tongue 30 has a first section 34 bending from the frame 37 and a second section (not labeled) extending outwardly from the first section 34. A hole (not labeled) is defined on the second section of the tongue 30. The first bolt 32 engages with the screw hole 51 of the back plate 5. The load plate 3 has a pair of hooks 35 bending downwardly for projecting into the recesses 42 for clasping the retention frame 4 at a second side thereof, and a press piece 36 between the hooks 35. The load plate 3 rotates towards or away from the socket body 2 between an open position to a close position. When the load plate 3 is at the close position, the tongue 30 contacts with a top face (not labeled) of the printed circuit board 1 and the press piece 36 is located in the gap 43 of the retention frame 4. The hooks 35 and the press piece 36 of the load plate 35 rotate around the retention frame 4 from the close position to the open position.
Please referring to
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.
Number | Date | Country | Kind |
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97211566 | Jun 2008 | TW | national |