An ultra-high-speed, high-density, high-reliability connector socket assembly structure

Abstract

An ultra-high-speed, high-density, high-reliability connector socket assembly structure, including a socket body and a socket; the socket body is in the shape of a rectangular block, and its upper and lower surfaces are provided with a number of through-step socket mounting holes, and the lower hole diameter is larger than the upper hole diameter; The installation holes of two adjacent rows of sleeves are non-equidistantly staggered; the sleeves are in the shape of a thin stepped shaft, which is fixedly arranged in the installation holes of the sleeves; the connector socket of the present invention utilizes the structure of the stepped shaft sleeves and the step sleeve installation holes , which solves the problem of high precision requirements on the outer diameter of the socket and the diameter of the socket mounting hole; using the stepped shaft-shaped socket and the stepped socket mounting hole, a gap groove is provided between the socket and the socket mounting hole, The problem of low impedance of the socket is improved; the gradual transition of the stepped axial socket is used to prevent the diameter of the socket and the lower end of the fisheye plug from changing suddenly, and the reflection of signal transmission is reduced; the mounting holes of the socket are not equidistant and staggered, The crosstalk problem of differential signal pairs in two adjacent columns is improved.

Description

technical field [0001] The invention relates to the technical field of high-speed and high-density connector structure design, in particular to an ultra-high-speed, high-density and high-reliability connector socket assembly structure. Background technique [0002] The existing high-speed connector socket structure adopts the design of a single outer diameter socket and the socket mounting hole, and the socket mounting holes are arranged in an orthogonal arrangement. This traditional structural design has the following problems: 1. Using a single outer diameter The design of the cooperation between the diameter socket and the socket mounting hole has extremely high requirements on the outer diameter of the socket and the diameter accuracy of the socket mounting hole. When the socket and the socket mounting hole have interference, as the socket is inserted into the socket The depth of the sleeve installation hole increases, and the assembly pressure rises sharply, which will ...

AI Technical Summary

Problems solved by technology

[0002] The existing high-speed connector socket structure adopts the design of a single outer diameter socket and the socket mounting hole, and the socket mounting holes are arranged in an orthogonal arrangement. This traditional structural design has the following problems: 1. Using a single external diameter The design of the cooperation between the diameter socket and the socket installation hole requires extremely high precision on the outer diameter of the socket and the diameter accuracy of the socket installation hole. When the socket and the socket installation hole have interference, as the socket is inserted into the socket The depth of the sleeve installation hole increases, and the assembly pressure rises sharply, which will easily lead to bending damage of the sleeve, which affects the product yield and increases the product cost; when there is a gap between the sleeve and the installation hole of the sleeve, it will cause looseness of the sleeve after assembly , resulting in unstable impedance characteristics; 2. The single outer diameter socket and the socket mounting hole are designed to match, and the socket and the socket mounting hole are all surrounded by insulating materials. Due to the high dielectric constant of the insulator, the impedance is low , which is not conducive to high-speed signal transmission; 3. Due to the use of a single outer diameter socket, the outer diameter of the socket and the outer diameter of the welding end have a large mutation, which increases the reflection of signal transmission, which is not conducive to high-speed signal transmission. At the same time, the welding end is welded on the circuit After the board, there will also be a short stub effect, which will increase the crosstalk of adjacent differential signal pairs and affect the further improvement of signal transmission rate; 4. The socket mounting holes are arranged orthogonally, so that the differential signal pairs The crosstalk is large, which affects the further improvement of the signal rate; therefore, in order to realize low-cost, high-speed, high-density connector design, it is necessary to re-design the structure of the existing connector socket

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