Electrical connector

An electrical connector is used for electrically connecting a plane grid array chip module to a circuit board. The electrical connector includes an insulating body, and conducting pins located in the insulating body. One side of the insulating body includes a fastening body that can be separated from the insulating body. The fastening body is pivoted with a cover body that can press the chip module to make the chip module be electrically connected with the conducting pin. The opposite side of the insulating body includes a fastening device for fastening the cover body. The electrical connector doesn't need a lower metal shell. The electrical connector utilizes the fastening body and the fastening device to fasten the cover body and the insulating body. Therefore, the goals of needing less material, being easily manufactured, and reducing the cost of the electrical connector are achieved.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an electrical connector. In particular, an electrical connector is used for connecting a plane grid array chip module to a circuit board.

2. Description of the Related Art

Due to the integrated application of the system technology for multi-medium, communication, and computer, the function of the desktop computers or laptops becomes more and more powerful and the circuit of the motherboard becomes complex. Especially in the laptops, in order to receiving more elements in the limited space, the design and the arrangement for the elements on the motherboard become more and more important.

Currently, the chip module is electrically connected to the circuit board via an electrical connector. Please refer toFIGS. 1 and 2. The electrical connector is used for electrically connecting the chip module500to the circuit board600. The electrical connector includes an upper metal shell100and a lower metal shell200that are movably connected together. A rod300is used for fastening the upper metal shell100and the lower metal shell200together. A body400is located in the lower metal shell200and is used for supporting the chip module500. However, the manufacturing process for the lower metal shell200is complex and needs more raw materials. Therefore, the cost is high.

SUMMARY OF THE INVENTION

One particular aspect of the present invention is to provide an electrical connector. The electrical connector of the present invention needs less material, is easily manufactured, and reduces the cost of the electrical connector.

The electrical connector of the present invention is used for connecting a plane grid array chip module to a circuit board. The electrical connector includes an insulating body, and conducting pins located in the insulating body. One side of the insulating body includes a fastening body that can be separated from the insulating body. The fastening body is pivoted with a cover body that can press the chip module to make the chip module be electrically connected with the conducting pin. The opposite side of the insulating body includes a fastening device for fastening the cover body.

The electrical connector doesn't need a lower metal shell. The electrical connector utilizes the fastening body and the fastening device to fasten the cover body and the insulating body. Therefore, the goals of needing less material, being easily manufactured, and reducing the cost of the electrical connector are achieved.

For further understanding of the invention, reference is made to the following detailed description illustrating the embodiments and examples of the invention. The description is only for illustrating the invention and is not intended to be considered limiting of the scope of the claim.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer toFIGS. 3˜7. The present invention provides an electrical connector. The electrical connector of the present invention is used for connecting a plane grid array chip module7to a circuit board8. The electrical connector includes an insulating body1, conducting pins2located in the insulating body1, a cover body3, a fastening body5and a fastening device. The fastening device includes a rod4and a fastening flake6.

The insulating body1has a plurality of receiving holes10. On the border of the receiving hole10, there are a first positioning side block11and a second positioning side block12that are higher than the receiving hole10. The conducting pins2are received in the receiving holes10. At least one end of the conducting pin2is higher than the receiving hole10of the insulating body1, and the conducting pin2has a bend-shape and is formed a contacting end21for pressing and contacting with the plane grid array chip module7. The highest point of the conducting pin2is lower than the upper surface of the first positioning side block11and the second positioning side block12. The lower end (not shown in the figure) of the conducting pin2can be welded to the upper surface of the circuit board8. The first positioning side block11has an opening110. The opening110passes through the upper and lower surfaces of the first positioning side block11. The opposite two sides of the opening110individually have a holding slot111that is concaved for connecting with the fastening body5. On the upper surface of the second positioning side block12, there is a receiving slot120. The receiving slot120includes a through hole121for being plugged by the fastening flake6. One side of the insulating body1outward protrudes a convex block13.

The cover body3has a frame-shape and includes a main body part30, a pressing part31extended from the one side of the main body part30, and a pivoting part32extended from the opposite side of the main body part30.

The rod4includes a shaft part40, an operation part41being vertical to the shaft part40, and a pressing part42extended from the shaft part41inward.

The fastening body5can be plugged into the opening110of the insulating body1and has a slice-shape. The fastening body5includes a base part50, a welding part51extended from the base part50downward, and a holding part52extended from the two sides of the base part50outward. The welding part51stretches out of the lower surface of the insulating body1, stretches into a corresponding hole80on the circuit board8, and is welded with circuit board8. The holding part52is located in the holding slot111. On the base part50, there is a hole53for connecting with the pivoting part32of the cover body3.

The fastening flake6can be plugged into the receiving slot120of the insulating body1and has a slice-shape. The fastening flake6includes a fastening part61and a positioning part62. The positioning part62has an inward-bent shape for pressing and holding the shaft part40of the rod4. The fastening part61stretches out of the lower surface of the insulating body1, the end of the fastening part61has a horizontal shape, and can be welded on the surface of the circuit board8. The positioning part62is fitting with the inner surface of the receiving slot120.

When the electrical connector is assembled, the pivoting part32of the cover body3and the hole53of the fastening body5are jointed together, and then are connected with the insulating body1. The shaft part40of the rod4is located at the space formed by the positioning part62of the fastening flake6and the receiving slot120of the insulating body1. The chip module7is located on the insulating body1, and the cover body3is pressed and located on the upper surface of the chip module7. The operation part41of the rod4is operated to make the pressing part42of the rod4press on the pressing part31of the cover body3and make the operation part41be located under the convex block13of the insulating body1. Therefore, the chip module7is electrically connected with the conducting pin2.

FIG. 8andFIG. 9show a second embodiment of the electrical connector of the present invention. The difference with the first embodiment is the end of the fastening part61of the fastening flake6has an upright shape, can be plugged into the corresponding through hole81of the circuit8and is welded with the circuit board8.

FIG. 10shows a third embodiment of the electrical connector of the present invention. The difference with the second embodiment is the end of the fastening part61of the fastening flake6does not stretch out the lower surface of the insulating body1, and is not welded with the circuit board8. Its effect is the same as the second embodiment.

FIG. 11shows a fourth embodiment of the electrical connector of the present invention. The difference with the previous embodiments is the fastening device is a screw4′. The screw4′ includes a head part40′ and a connecting part41′. At one end of the insulating body1′ having a fastening body5′ there is a screw hole15′. The screw hole15′ passes through the upper and lower surface of the insulating body1′. On the cover body3′ there a though hole33′ that corresponds to the screw hole15′ on the insulating body1′. The connecting part41′ of the screw4′ passes through the through hole33′ but the head part42′ cannot pass through the through hole33′. When the chip module (not shown in the figure) is connected, the chip module is directly placed on the insulating body1′ and contacts with the conducting pin (not shown in the figure). Then, the cover body3′ is pressed, and the screw4′ passes through the through hole33′ and is locked into the screw hole15′ of the insulating body1′. Therefore, the cover body3′ is fastened to the insulating body1′.

The description above only illustrates specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.