Board to board connector assembly having improved terminal arrangement

摘要

A primary connector (10, 20) includes a primary housing (11, 31) and a number of terminal groups. The primary housing includes a periphery wall (111, 311) and a side wall (112, 312) disposed at opposite sides of the primary housing and extending along a longitudinal direction, a slot (113, 313) defined between the periphery wall and the side wall, and a number of passageways (114, 314) extending along a transverse direction for receiving the number of terminal groups. Each terminal group includes a predetermined terminal (22, 42) having a contact section (221, 421) exposed to the slot and a pair of soldering portions (222, 422) respectively extending from opposite sides of the contact section and inserted outwardly from the periphery wall and the side wall.

主权项

1. A board to board connector assembly, comprising a primary connector and a mating connector for mating with the primary connector, the primary connector including:
a primary housing including a periphery wall and a side wall disposed at opposite sides of the primary housing and extending along a longitudinal direction, a slot defined between the periphery wall and the side wall, and a plurality of passageways extending along a transverse direction perpendicular to the longitudinal direction across the slot; and a plurality of terminal groups secured in corresponding passageways, each terminal group comprising a predetermined terminal having a contact section exposed to the slot and a pair of soldering portions respectively extending from opposite sides of the contact section and extended outwardly from the periphery wall and the side wall; wherein said predetermined terminal is constituted into a grounding terminal, each terminal group further comprises a pair of signal terminals arranged at one side of the grounding germinal, and each signal terminal includes a contact section exposed to the slot and a single soldering portion extended outwardly from the side wall; wherein in each terminal group, there are three soldering portions of the grounding terminal and the signal terminals arranged adjacent to the side wall, and there are one soldering portion of the grounding terminal arranged adjacent to the periphery wall; wherein said mating connector includes a mating housing and a plurality of terminal groups configured substantially same to the primary housing and the plurality of terminal groups of the primary connector, respectively, and the mating housing defines a slot receiving the periphery wall of the primary connector; and wherein said primary housing includes a stepped portion connected with the side wall, said periphery wall defines an oblique face facing to the stepped portion, and the side wall defines an inclining face facing to the stepped portion.