Terminal assemblies for differential signal connector
View Patent ↗A connector assembly is provided with opposing and interengageable first and second connector components. Each of the two components has internal cavities that contain terminal assemblies of either plug or receptacle structure and may further include either a plurality of power terminals or differential signal terminals. The terminals have contact portions, tail portions and interconnecting portions that are partially encapsulated by an insulative outer support frames. The shell forms a wafer and two such wafers are combined together to form a terminal assembly. The terminal assemblies are identical in shape, other than for an engagement means that serves to hold two subframes together as a single assembly.
1. A terminal assembly for use in transmitting differential signal between two electronic components, comprising:
at least two pairs of conductive, differential signal terminals;
an insulative support fanned from a dielectric material and supporting the pairs of terminals in an arrangement where the two differential signal terminal pairs are aligned together in the support, the support having a plurality of distinct sides;
said terminals including tail portions that are exposed along a first one of the support sides for connection to traces on a circuit board, contact portions that are exposed along a second side of said support sides, and body portions interconnecting the tail and contact portions together and defining a signal path through said support, said support including a skeletal framework which spaces terminals of each differential signal pair apart from each other and which aligns said terminals of said differential signal pairs with each other, the skeletal framework including at least one elongated slot disposed in one of said first and second support sides between the differential signal terminal pairs, the slot extending in a preselected distance into said support, said slot partially separating said differential signal terminal pairs from said support.
2. The terminal assembly of claim 1 , wherein said skeletal framework includes a plurality of openings defined therein that expose portions of said terminal body portions, the openings being aligned with said terminal body portions in a path between said terminal tail and contact portions.
3. The terminal assembly of claim 2 , wherein said openings expose said terminal body portions to air for influencing impedance of said differential signal terminal pairs.
4. The terminal assembly of claim 1 , wherein said skeletal framework includes a pair of interengaging subframes, each subframe supporting one terminal of each of said differential signal terminal pairs, the terminals being partially embedded in said subframe, whereby when said two subframes are interengaged, the terminals of each of said differential signal terminal pairs are spaced apart from each other within said support and portions of said terminals are separated by said dielectric material.
5. The terminal assembly of claim 4 , wherein one of said subframes includes a web portion that includes at least one recess and the other of said subframes includes a web portion that includes a post that is received within said recess.
6. The terminal assembly of claim 4 , wherein said support includes a plurality of interference members projecting out from said support, for engaging opposing walls of a connector into which said terminal assembly may be inserted.
7. The terminal assembly of claim 2 , wherein said support first and second sides are transverse to each other and said terminals follow a general L-shaped path between said tail and contact portions.
8. The terminal assembly of claim 7 , wherein said support includes a pair of slots disposed between said terminal pairs and extending toward each other from said support first and second sides, the slots being spaced apart from each other by the support web portion.
9. The terminal assembly of claim 7 , wherein said support includes first and second interengaging halves, the first half supporting one terminal of each of said terminal pairs and the second half supporting the other terminal of each of said terminal pairs.
10. The terminal assembly of claim 8 , wherein said support halves include means for interengaging each other, including a recess disposed on said first support half and a post disposed on said second support half, said recess and post being aligned with each other and disposed on said support in said area separating said slots from each other.
11. The terminal assembly of claim 1 , wherein said terminal contact portions of each of said differential signal terminal pair have the same length.
12. The terminal assembly of claim 1 , wherein the terminal contact portions of a first pair of said differential signal terminal pairs has a first length and the terminal contact portions of the second pair of said differential signal terminal pairs has a second length and the first and second length are different.
13. The terminal assembly of claim 1 , wherein said contact portions extend out from said support second side and are spaced apart from each other by an intervening space.
14. The terminal assembly of claim 1 , wherein said support includes insulative contact blade portions extending along said support second face, said terminal contact portions extending along the contact blade portions.