Electric connector

Abstract

The invention discloses an electrical connector for electrically connecting a chip module to a circuit board, which includes a base body, a plurality of conductive terminals accommodated in the base body, a cover that can be floatingly assembled on the base body, and assembled on the base body For the elastic part between the cover and the base body, a number of terminal receiving grooves arranged in a matrix are provided on the base body, and the conductive terminals are accommodated in the corresponding terminal receiving grooves, which are provided with elastic arms and contact parts at the ends of the elastic arms, which are adjacent in the same row The projections of the elastic arms of the two conductive terminals on a plane parallel to the upper surface of the substrate partially overlap each other, and the cover is provided with a number of parallel openings for the contact parts of the conductive terminals to pass through when it floats toward the substrate. These openings correspond to the extension of each row of conductive terminals on the base body. During transportation, the contact parts of all conductive terminals in the same row can be accommodated in the same corresponding opening, thus ensuring reliable connection between the electrical connector and the chip module. electrical connection.

Description

【Technical field】 [0001] The invention relates to an electrical connector, in particular to an electrical connector which is used to electrically connect a planar grid array chip module and a circuit board and has a cover. 【Background technique】 [0002] Planar grid array electrical connectors are widely used in the field of electrical connectors for electrically connecting chip modules and circuit boards, and realizing electrical connection between the electrical connectors and chip modules by pressing. This type of electrical connector generally has a rectangular thin plate-shaped base and a number of conductive terminals accommodated in the base. The conductive terminals are provided with contact parts protruding from the surface of the base to electrically connect with the chip module. Outside the surface of the substrate, the protruding contact portion is easily damaged by improper external force during transportation, which affects the reliable electrical connection be...

AI Technical Summary

Problems solved by technology

A plurality of conductive terminals 11' are accommodated in corresponding terminal receiving grooves 103' of the base body 10', which are provided with elastic arms (not marked) and contact parts 110' at the ends of the elastic arms. Two adjacent conductive terminals 11' in the same row The projections of the elastic arms on the upper surface of the base body are separated from each other by a certain distance, and the cover body 13' is provided with a number of openings 130' corresponding to the positions of the terminal receiving grooves 103' of the base body 10', and these openings 130' penetrate through the cover body 130' The opposite upper and lower surfaces 132', 133' are used to partially accommodate the conductive terminal 11', and allow the contact portion 110' of the conductive terminal 11' to pass through to electrically connect with the chip module, and each opening 130' Only one conductive terminal 11' is correspondingly accommodated; however, there is a defect in this structural arrangement: with the development of miniaturization of electrical connectors, the terminal density is relatively high, and at the same time, in order to ensure that the terminal has good elasticity, its elastic arm is relatively long In this way, when the conductive terminals are accommodated in the insulating body, the elastic arms of two adjacent conductive terminals may partially overlap each other, so that the two conductive terminals with overlapping characteristics cannot be respectively accommodated in a corresponding one on the cover. Therefore, the electrical connector with this structure cannot effectively protect the conductive terminals during transportation, thus affecting the reliable electrical connection between the electrical connector and the chip module.

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