Electric connector assembly and its socket electric connector and plug electric connector

Abstract

An electric connector assembly includes mutually paired socket electric connector and plug electric connector. The socket electric connector comprises a and a plurality of first terminals held in thesocket insulation body, wherein the socket insulation body is provided with a main body portion and a expansion portion extending outwards from the main body portion. The plug electric connector comprises a plug insulation body and a plurality of second terminals accommodated in the plug insulation body. The first and second terminal are respectively provided with a contact portion, a holding portion held with the insulation body and a tail extending outside the insulation body, the first and second terminal both includes two rows of terminal sets, each row of terminal set is provided with two pairs of differential signal terminals for transmitting signals, a grounding terminal is provided between the two pairs of differential signal terminals, and one pair of differential signal terminals are located farthest outboard of the terminal set. The electric connector assembly and its socket electric connector and plug electric connector realize the high speed signal transmission between the backboard and the mainboard.

Description

【Technical field】 [0001] The invention relates to an electrical connector assembly capable of increasing signal transmission rate, and a socket electrical connector and a plug electrical connector. 【Background technique】 [0002] As a standard input / output interface, a universal serial bus (Universal Serial Bus, USB) interface has been widely used in the design of many electronic devices. In 1994, seven world-renowned computer and communication companies including Intel, Compaq, Digital, IBM, Microsoft, NEC, and Northern Telecom jointly established the USB Association (USB-IF), initially establishing the USB interface specification. So far, the USB Association has released versions 1.0, 1.1 and 2.0. [0003] The above-mentioned USB 1.0, 1.1, and 2.0 versions respectively support the following three transmission rates: (1), the low-speed mode transmission rate is 1.5 megabits per second, mostly used for keyboards and mice; (2), the full-speed mode transmission rate is 12 meg...

AI Technical Summary

Problems solved by technology

[0005] However, the application of PCI-E and SATA interfaces is far inferior to that of USB, and the number of terminals of these two types of interfaces is large and the volume is large, so it is difficult to adapt to the future development trend of light, thin, short and small electronics industry.

As a result, under the impetus of the USB Association and major connector manufacturers, a new generation of USB high-speed interfaces has emerged. However, the electrical connectors and components inside the existing host can transmit the signals of the USB2.0 interface on the backplane of the chassis. The high-speed signal received by the new-generation USB interface on the backplane cannot be transmitted to the mainboard inside the host, so the high-speed signal on the backplane cannot be transmitted to the mainboard, and the signal on the mainboard cannot be transmitted to the backplane through high-speed

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