CN202196955U - Electric connector - Google Patents

Abstract

The utility model relates to an electrical connector, which is used to electrically connect a chip module to a printed circuit board, comprising a base, a plurality of conductive terminals accommodated in the base and a metal frame disposed on the base, the base includes The upper surface, the lower surface opposite to the upper surface, and the side connecting the upper surface and the lower surface, the metal frame is attached to the side of the base, and it is provided with a number of side walls, and a number of holes are provided on the side wall. There is a positioning column through the hole on the top to achieve electromagnetic shielding and enhance the holding effect between the metal frame and the base.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for electrically connecting a chip module to a printed circuit board.

【Background technique】

With the rapid development of electronic technology, electrical connectors are widely used to electrically connect chip modules to printed circuit boards. An existing planar grid array electrical connector includes an insulating body and a plurality of conductive terminals accommodated in the insulating body. The insulating body is provided with a receiving hole for receiving the conductive terminal. The conductive terminal includes a base, a welding portion extending downward from the base, and an elastic arm extending upward from the base. The end of the elastic arm is provided with a contact portion electrically connected with the chip module. With the development trend of miniaturization of electrical connectors, the distance between terminals is getting smaller and smaller, and the corresponding electromagnetic interference is becoming more and more serious, which affects the contact quality of electrical connectors.

In view of this, it is indeed necessary to improve the existing electrical connectors to overcome the above-mentioned defects in the prior art.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which is provided with a metal frame to achieve the effect of electromagnetic shielding, and the metal frame and the base are firmly positioned.

The purpose of this utility model is achieved through the following technical solutions: an electrical connector, which is used to electrically connect the chip module to the printed circuit board, including a base, a number of conductive terminals accommodated in the base, and a The metal frame on the upper surface, the base includes an upper surface, a lower surface opposite to the upper surface, and a side connecting the upper surface and the lower surface. The metal frame is attached to the side of the base, and it is provided with several side walls. A plurality of holes are arranged, and a positioning column passing through the holes is arranged on the side of the base.

The utility model further defines that the metal frame body is fixed together with the base through integral molding.

The utility model further defines that the base is provided with a plurality of receiving holes penetrating from the upper surface to the lower surface, and the conductive terminals are accommodated in the receiving holes.

The utility model further defines that the side wall is embedded in the base and surrounds several openings.

The utility model further defines that the openings correspond to the receiving holes one by one.

The utility model further defines that the size of the hole is less than 0.5mm.

The utility model further defines that the conductive terminal includes a base, an upper elastic portion extending upward from the base, a lower elastic portion extending downward from the base, and a holding portion extending upward from the base.

The utility model further defines that the end of the upper elastic part is provided with an upper contact part, the end of the lower elastic part is provided with a lower contact part, and the holding part is provided with barbs.

The utility model further defines that the position of the hole on the metal frame is lower than the position of the barb of the conductive terminal.

The utility model further defines that the upper contact part extends from the upper surface of the base, the lower contact part extends from the lower surface of the base, and the barb is fixed to the base.

Compared with the prior art, the metal frame of the electric connector of the present invention is provided with a hole, and during the integral molding process with the base, the plastic flows through the hole to form a positioning column, so that the metal frame and the base are firmly positioned. While achieving electromagnetic shielding, the holding effect between the metal frame and the base is enhanced.

【Description of drawings】

FIG. 1 is a three-dimensional exploded view of the electrical connector of the present invention, in order to simplify the description, only a part of the electrical connector is shown.

FIG. 2 is a three-dimensional assembled view of the electrical connector shown in FIG. 1 .

FIG. 3 is a cross-sectional view of the electrical connector shown in FIG. 2 along line A-A.

【Detailed ways】

Referring to FIGS. 1 to 3 , the electrical connector 100 of the present invention is used to electrically connect a chip module (not shown) to a printed circuit board (not shown). The electrical connector 100 includes a base 2 , a plurality of conductive terminals 3 accommodated in the base 2 , and a metal frame 1 disposed on the base 2 . The metal frame 1 is fixed together with the base 2 through integral molding.

The base 2 has an upper surface 20 , a lower surface 21 opposite to the upper surface 20 , and a side surface 22 connecting the upper surface 20 and the lower surface 21 . The base 2 also has a plurality of receiving holes 201 penetrating the lower surface 21 from the upper surface 20 and a positioning column 221 extending from the side surface 22 .

The conductive terminal 3 is accommodated in the receiving hole 201 of the base 2, and includes a base 30, an upper elastic portion 33 extending upward from the base 30, a lower elastic portion 32 extending downward from the base 30, and a holding portion 31 extending upward from the base 30. . The end of the upper elastic portion 33 is provided with an upper contact portion 331 , the end of the lower elastic portion 32 is provided with a lower contact portion 321 , and the holding portion 31 is provided with a barb 310 . The upper contact portion 331 extends out of the upper surface 20 of the base 2 to be electrically connected to the chip module, and the lower contact portion 321 extends out of the lower surface 21 of the base 2 to be electrically connected to the printed circuit board. The barb 310 is fixed to the base 2 so that the conductive terminal 3 is firmly positioned in the base 2 .

The metal frame 1 is embedded in the base 2 and has several side walls 11 . Four of the side walls 11 are attached to the side surfaces 22 of the base 2 . Several sidewalls 11 define several openings 10 . In this embodiment, the openings 10 correspond to the receiving holes 201 one by one. The number of openings 10 can also be smaller than the number of receiving holes 201, and the number of openings 10 can be set according to specific requirements. The side wall 11 defines a plurality of holes 111 corresponding to the positioning posts 221 of the base 2 . During the integral molding process of the metal frame 1 and the base 2, the plastic flows through the holes 111 of the metal frame 1 to form the positioning columns 221 of the base 2, so that the metal frame 1 and the base 2 are firmly positioned together . In order to maximize the effect of electromagnetic shielding, the position of the hole 111 on the metal frame 1 is lower than the position of the barb 310 of the conductive terminal 3 , and the size of the hole 111 is less than 0.5 mm.

The utility model has the advantages that: during the integral molding process of the metal frame 1 and the base 2, the plastic flows through the hole 111 of the metal frame 1 to form the positioning column 221 of the base 2, so that the metal frame 1 and the base 2 are firmly positioned together to achieve electromagnetic shielding and at the same time enhance the holding effect of the metal frame 1 and the base 2 .

The above are only preferred implementations of the utility model, and any improvements made on the basis of this implementation should not deviate from the technical solution of the utility model.

Claims (10)

1. An electrical connector for electrically connecting a chip module to a printed circuit board, comprising a base, a plurality of conductive terminals accommodated in the base, and a metal frame disposed on the base, the base including an upper surface 1. The lower surface opposite to the upper surface and the side connecting the upper surface and the lower surface, characterized in that: the metal frame is attached to the side of the base, and it is provided with a number of side walls, and a number of holes are provided on the side wall, and the base A positioning column passing through the hole is provided on the side of the side. 2. The electrical connector according to claim 1, wherein the metal frame is integrally fixed with the base. 3 . The electrical connector as claimed in claim 1 , wherein the base is provided with a plurality of receiving holes extending from the upper surface to the lower surface, and the conductive terminals are received in the receiving holes. 4 . 4. The electrical connector as claimed in claim 3, wherein the side walls are embedded in the base and surround a plurality of openings. 5. The electrical connector as claimed in claim 4, wherein the openings correspond to the receiving holes one by one. 6. The electrical connector as claimed in claim 1, wherein the size of the hole is smaller than 0.5mm. 7. The electrical connector according to claim 3, wherein the conductive terminal comprises a base, an upper elastic portion extending upward from the base, a lower elastic portion extending downward from the base, and a holding portion extending upward from the base . 8 . The electrical connector as claimed in claim 7 , wherein an upper contact portion is provided at an end of the upper elastic portion, a lower contact portion is provided at an end of the lower elastic portion, and a barb is provided at the holding portion. 9. The electrical connector according to claim 8, wherein the position of the hole on the metal frame is lower than the position of the barb of the conductive terminal. 10. The electrical connector according to claim 8, wherein the upper contact part extends out of the upper surface of the base, the lower contact part extends out of the lower surface of the base, and the barb is fixed to the base.

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