Contact unit and contact module comprising same, connector and connector module

Abstract

The present invention provides a contact unit and a contact module comprising the same, a connector and a connector module. The contact module comprises a male connector and a female connector which respectively correspond to a male contact unit and a female contact unit, the male contact unit and the female contact unit respectively correspondingly comprise male and female end differential pairsand male and female end shielding pieces, the male end shielding piece is a groove-shaped shielding piece, the two sides of the groove-shaped shielding piece are respectively located at the two sidesof the male end differential pair, the extension direction of the groove-shaped shielding piece is the same as the extension direction of the corresponding differential pair, the male contact unit further comprises a grounding contact piece relatively fixedly arranged with the shielding piece, the grounding contact piece has a contact arm, and when the male contact unit and the female contact unitare plug-in, the two sides of the contact arm are respectively in contact with the side of the groove-shaped shielding piece of the male end and the female end shielding piece. Therefore, the male end shielding piece and the female end shielding piece form a shielding cavity configured to encircle the plug-in differential pairs so as to reduce the crosstalk.

Description

technical field [0001] The invention relates to the field of conductive connection, in particular to a contact unit for conductive connection, a contact assembly including the unit, a connector and a connector assembly. Background technique [0002] Crosstalk refers to the undesired voltage noise interference on adjacent transmission lines due to electromagnetic coupling when a signal propagates on a transmission line. Signals are transmitted in the transmission line in the form of electromagnetic waves. Electromagnetic waves include time-varying electric and magnetic fields. The transformed electric and magnetic fields will generate induced voltages and currents in the surrounding transmission lines. The voltage and current are the direct causes of the crosstalk behavior in the disturbed transmission line. [0003] Crosstalk is another important factor affecting the transmission performance of products. Reducing crosstalk has always been an important direction in the desig...

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patent with the application date of 2012.11.07 and the authorized announcement number of CN102969621B discloses a differential contact module and a differential connector and connector assembly using the module. Ground contacts are provided on both sides of the width direction of the differential pair to shield the signal between two adjacent differential pairs in the width direction. The shielding effect between pairs is poor, and when the signal density is high, there is also a problem of large crosstalk

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