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US 5,066,236 AGranted
Impedance matched backplane connector
AssigneeAMP Incorporated
InventorJohannes M. Broeksteeg
Life of this patent
Estimating the term…
Abstract
An electrical connector is shown which is mountable to a printed circuit board (230) which includes a plurality of insulating housings (4). The vertical row of terminals is formed as a subassembly (60) where the terminals (72-75) are integrally molded within an insert 82 of dielectric material. The lengths of the sections (72a, 73a, 74a, 75a) of the terminals (72-75) which are within the molded insert (82) vary to alter the impedance of the terminals 72-75, thereby matching the overall impedance of the terminals (72-75). Cross-talk shield members (180') are insertable into the rear of the connector housing (4) to shield adjacent vertical rows of terminals from cross-talk. Upper (100) and lower (100') shield members are insertable over the assembly to shield the assembly from EMI/RFI.
Claims36
A controlled impedance right angle electrical connector assembly (2) comprising:
- an insulating housing (2) having a front mating face (6) and a rear face (14), said housing a plurality of terminal receiving passageways, with the passageways arranged in an array of columns and rows;
- and
- at least one terminal module (60,60') where the module (60,60') comprises:
- (a) a stamped lead frame (62) including a plurality of edge stamped right angle contacts (64,65,66,67,67') where the contacts each include a printed circuit board interconnection section (76,77,78,79), an intermediate section (72,73,74,75) and a mating contact section (68,69,70,71,71');
- each consecutive intermediate section (72,73,74,75) increasing in length from the prior and adjacent contact, and
- (b) an overmolded insert (82) discrete from the housing which encapsulates at least a portion of each intermediate section (72,73,74,75) in an insulative material leaving the remainder of each intermediate section (72,73,74,75) exposed to the air, the length of each intermediate section encapsulated within the insert decreasing as the intermediate portions increase in length, thereby balancing the impedance of the plurality of contacts.
3 more elements
An impedance matched electrical connector, comprising:
- an insulative housing means having a front mating face and a rear face, a plurality of terminal receiving passageways extending between said faces forming an array of columns and rows of passageways, a plurality of vertically oriented modules each having electrical terminals integrally molded within an insulative web, said terminals having mating contact portions extending in a generally horizontal direction and being adapted for receipt within a said column of terminal receiving passageways and positioned adjacent to said front mating face, said terminals further comprising printed circuit contact portions being disposed at substantially a right angle relative to said mating contact portions, said terminals further comprising intermediate portions interconnecting said contact portions and said printed circuit contact portions, each consecutive intermediate portion being progressively longer in length, said web encapsulating a length of each intermediate portion by an amount inversely proportionate to lengths of said intermediate portions, thereby balancing the impedance in the terminals.
An electrical connector, comprising:
- a plurality of individual housing modules each having a front mating face and a rear face, top and bottom walls and sidewalls, said housing modules each including terminal receiving passageways extending between said faces, said housing modules further comprising an elongate channel extending horizontally across and between an exterior row of said passageways and said top wall, said plurality of said housing modules in an abutting relation with sidewalls of adjacent modules being positioned one against the other;
- a plurality of electrical terminals positioned in said housing, disposed in said passageways;
- and
- a first one-piece electrical shield member attached to said plurality of modules, said shield member including a plurality of slots thereby forming intermediate tab portions, said slots being located relative to said abutting housings to flank said abutting sidewalls forming said elongate channels and position said tab portions in said elongate channels.
1 more element
An electrical connector assembly, comprising:
- a receptacle assembly comprising a plurality of individual housing modules each having a front mating face and a rear face, top and bottom walls and sidewalls, said housing modules each including terminal receiving passageways extending between said faces, said housing modules further comprising an elongate channel extending horizontally across and between an exterior row of said passageways and said top wall, thereby forming thin sidewall sections at opposite ends of said channel, a plurality of said housing modules being positioned in abutting relation with sidewalls of adjacent modules positioned one against the other;
- a plurality of electrical terminals positioned in said housing, disposed in said passageways with receptacle contact portions positioned adjacent to said mating face;
- and
- a post header comprising an insulative housing, having sidewalls extending generally parallel to a length of said receptacle assembly, one of said post header sidewalls having a plurality of spaced slots adapted to receive therein said abutted thin sidewall sections of the receptacle assembly formed by said channels, and said elongate channels are adapted to receive therein a portion of said one post header sidewall intermediate adjacent slots, said header further comprising a plurality of upstanding posts positioned in an array matching said passageways through said mating face.
1 more element
An electrical connector assembly, comprising:
- a receptacle assembly comprising an insulative housing having a front mating face and a rear face, top and bottom walls and sidewalls, said housing having terminal receiving passageways extending between said faces, said housing further comprising an elongate channel extending horizontally across and between an exterior row of said passageways and said top wall;
- a plurality of electrical terminals positioned in said housing, disposed in said passageways with receptacle contact portions positioned adjacent to said mating face;
- and a first onepiece electrical shield member attached to said housing, being receivable in said elongate channel, said shield member including resilient ground contact sections integrally formed in said shield member and positioned at opposite ends of said channel;
- and
- a post header comprising an insulative housing, having sidewalls extending generally parallel to a length of said receptacle assembly, said header comprising a plurality of upstanding posts positioned in an array matching said passageways through said mating face, and ground posts positioned at ends of said header housing adjacent to an inner surface of one of said post header sidewalls.
2 more elements
Dependencies are inferred from the claim text.