Electrical connector having improved insulative housing

An electrical connector comprising:

• an upper plate and a lower plate engaging with each other and a plurality of apertures defined on both of the upper plate and the lower plate;
• a substrate inhibited between the upper plate and the lower plate and having a plurality of passageways corresponding to the apertures;
• and
• a plurality of contacts received in the passageways and the apertures;
• wherein
• a bottom surface of the upper plate and a top surface of the bottom plate both define a recess to receive the substrate;
• wherein
• a plurality of poles integrally formed from a bottom surface of the recess of the upper plate to be inserted into corresponding through holes defined on the substrate to guide the upper plate mounted to the substrate, meanwhile a plurality of posts integrally formed out of the recess of the upper plate to be inserted into corresponding holes defined on the lower plate to guide the upper plate mounted to the lower plate;
• wherein
• the substrate plates some metallic coatings on a top surface and a bottom surface.

An electrical connector comprising:

• an upper plate and a lower plate arranged spaced from each other in a vertical direction and parallel to each other, said upper plate defining an upper contact region with a plurality of upper apertures extending therethrough, and said lower plate defining a lower contact region with a plurality of lower apertures extending therethrough under condition that said upper contact region and said lower contact region are spaced from each other in the vertical direction with a space therebetween while the upper apertures are aligned with the corresponding lower apertures in said vertical direction;
• a plurality of upper contacts disposed in the corresponding upper apertures, respectively, each of said upper contacts defining an upper contacting section extending upwardly beyond an upper face of the upper plate and a lower connecting section downwardly extending into the space;
• a plurality of lower contacts disposed in the corresponding lower apertures and associated with the upper contacts, respectively, each of said lower contacts defining a lower contacting section extending downwardly beyond a bottom face of the corresponding lower plate and an upper connecting section upwardly extending into the space and mechanically and electrically connected to the lower connecting section of the corresponding upper contact;
• and
• a plurality of springs associated with the corresponding upper contacts and lower contacts, respectively, and urging the corresponding upper contacts toward the upper plate and the corresponding lower contacts toward the lower plate away from the corresponding upper contacts, respectively;
• wherein
• said upper plate defines an upper securing region surrounding the upper contact region, and said lower plate defines a lower securing region surrounding the lower contact region stacked with the upper contact region for combing the upper plate and the lower plate together;
• wherein
• an intermediate substrate is snugly received in the space in the vertical direction, and said substrate defines a plurality of intermediate through holes each receiving the corresponding spring, the connecting section of the corresponding upper contact and the connecting section of the corresponding lower contact;
• wherein
• said substrate is made of material of a printed circuit board and equipped with metallic coating thereof.