Ultrahigh-speed high-density high-reliability connector socket assembly structure

Abstract

The invention provides an ultrahigh-speed high-density high-reliability connector socket assembly structure, which comprises a socket body and a plug bush, wherein the socket body is a rectangular block shape, the upper and lower surfaces of the socket body are provided with a plurality of through step-shaped plug bush mounting holes, the lower aperture is larger than the upper aperture, every twoadjacent columns of plug bush mounting holes are arranged in a non-equidistant staggered mode, and the plug bush is in a thin stepped shaft shape and is fixedly arranged in the plug bush mounting hole. According to the connector socket, the stepped shaft plug bush and the stepped plug bush mounting hole structure are utilized, so that the problem of high requirements on the precision of the outerdiameter of the plug bush and the diameter of the plug bush mounting hole is solved; the stepped shaft-shaped plug bush and the stepped plug bush mounting hole are utilized, so that a gap groove is formed between the plug bush and the plug bush mounting hole, and the problem of low impedance of the plug bush is solved; the stepped shaft-shaped plug bush is used for gradual transition, so that sudden change of the diameters of the plug bush and the fisheye plug at the lower end is prevented, and reflection of signal transmission is reduced; and the plug bush mounting holes are arranged in a non-equidistant staggered manner, so that the crosstalk problem of two adjacent columns of differential signal pairs 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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