Planar grid array electric connector and its electric conducting terminal

Abstract

The present invention reveals one kind of electric planar grid array connector and its conducting terminal. The electric connector includes insulating main body and conducting terminal, and the conducting terminal has support plate with tail in its one end and elastic part in the other end. The elastic part consists of even sections of elastic arms connected each other, and two adjacent elastic arms extend obliquely in opposite directions. The last elastic arm in the tail of the elastic part has arced contact part in the free end, and when the contact part of conducting terminal is pressed, all the elastic arms produce deformation to ensure the excellent elasticity of the conducting terminal. The adjacent elastic arms with opposite rotation directions can reduce horizontal shift in the contact part and less terminal wear.

Description

【Technical field】 [0001] The present invention relates to a land grid array electrical connector and its conductive terminals, in particular to a land grid array electrical connection for establishing electrical connection between an LGA (Land Grid Array) package and a printed circuit board device and its conductive terminals. 【Background technique】 [0002] The pins of the integrated circuit package are arranged in an LGA manner, which is called an LGA package. LGA Socket is a plane grid array electrical connector. It is an electrical connector that arranges conductive terminals in an array. The terminals are connected in a down-pressing manner. [0003] figure 1 It is a combined cross-sectional view of an existing planar grid array electrical connector and its conductive terminals 80 , LGA package 41 and printed circuit board 51 in the connector industry. A plurality of conductive terminals 80 are accommodated in the insulating body 31 of the electrical connector, and ...

AI Technical Summary

Problems solved by technology

[0004] However, the arrangement density of terminals of the existing planar grid array electrical connector cannot meet higher requirements, and its conductive terminals 80 also have obvious deficiencies in terms of elasticity and connection reliability. If the design of the elastic arm 84 is shorter, the elasticity The elasticity of the arm 84 is relatively poor, and the elastic arm 84 will cause the elastic arm 84 to produce non-elastic deformation and cannot return to its original shape under the situation of repeated compression.

If the elastic arm 84 of the conductive terminal 80 is designed to be longer, when the contact portion 842 of the conductive terminal 80 is pressed, the elastic arm 84 will rotate relative to the support piece 81, so that the contact portion 842 is on the conductive piece 412 of the LGA package 41. A large horizontal displacement is generated, and because there is a relatively large relative contact pressure between the contact portion 842 and the lead piece 412, the contact portion 842 of the conductive terminal 80 is easy to wear due to large sliding, and will scratch the LGA package body 41 at the same time. Lead strip 412

And because the design of the elastic arm 84 is longer, it is bound to increase the horizontal distance between the conductive terminals 80 in the insulating body 31, so that the density of the conductive terminals 80 in the insulating body 31 decreases, which is in line with the development direction of electrical equipment towards miniaturization and high density. to violate

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