Patent ID: 7845987

Claim:
An electrical connector comprising a plug connector and a receptacle connector detachably fitted with each other, wherein said plug connector comprises a plurality of plug contacts each having a contact portion adapted to contact a receptacle contact, a fixed portion to be held by a block, and a connection portion to be connected to a substrate; and the block for arranging and holding said plug contacts thereon; said plug contacts being arranged on both sides of the block to be opposite to each other in the width direction of the block, and said block being formed at both longitudinal ends with projection walls whose height is higher than that of upper surfaces of said plug contacts and said block being provided between said opposite plug contacts with an anchoring recess adapted to engage said receptacle connector, wherein said receptacle connector comprises a plurality of receptacle contacts each having a contact portion, adapted to contact said plug contact, an elastic portion, a fixed portion to be held by a housing, and a connection portion to be connected to a substrate; and the housing for arranging and holding said receptacle contacts thereon; said receptacle contacts being arranged on both sides of the housing to be opposite to each other in the width direction of the housing, said housing being provided with an engaging protrusion to engage said anchoring recess and formed at both longitudinal ends with protrusion walls whose height is higher than that of upper surfaces of the elastic portions of said receptacle contacts, and said housing being further provided at both the longitudinal ends with engaging grooves for receiving said projection walls, respectively, and provided between said receptacle contacts longitudinally arranged with side walls A whose height is higher than the upper surfaces of the elastic portions of said receptacle contacts and with side walls B continuous with said side walls A, whose height is higher than that of upper surfaces of the contact portions of said receptacle contacts, and wherein upon said plug connector and said receptacle connector being fitted with each other, said plug contacts and said receptacle contacts are engaged only after said plug connector and said receptacle connector have been completely fitted with each other.