Electrical device having an impedance control body

Patent metadata

Field	Value
Publication number	US-2019280435-A1
Application number	US-201815915466-A
Country	US
Kind code	A1
Filing date	Mar 8, 2018
Priority date	Mar 8, 2018
Publication date	Sep 12, 2019
Grant date	—

Abstract

An electrical device includes an organizer having a dielectric body including an upper surface and a lower surface supporting ends of cables having signal wires and having conductors on the upper surface and on the lower surface being electrically connected to corresponding signal wires. The electrical device includes an impedance control body separate and discrete from the dielectric body and coupled to the dielectric body of the organizer. The impedance control body has an upper pad on the upper surface covering the conductors and signal wire on the upper surface and a lower pad on the lower surface covering the conductors and signal wires on the lower surface. The impedance control body has a connecting tab passing through a void in the organizer between the upper pad and the lower pad.

First claim

1 . An electrical device comprising:
cables having signal wires; an organizer having a dielectric body including an upper surface and a lower surface, the organizer supporting ends of the cables on the upper surface and on the lower surface, the organizer having a void extending between the upper surface and the lower surface; conductors on the upper surface and on the lower surface, the conductors having mating ends configured for mating with a mating electrical device, the conductors being electrically connected to corresponding signal wires; and an impedance control body coupled to the dielectric body of the organizer, the impedance control body having an upper pad on the upper surface directly engaging and covering at least a portion of each conductor on the upper surface and the upper pad directly engaging and covering at least a portion of each signal wire of the cables supported by the upper surface, the impedance control body having a lower pad on the lower surface directly engaging and covering at least a portion of each conductor on the lower surface and the lower pad directly engaging and covering at least a portion of each signal wire of the cables supported by the lower surface, the impedance control body having a connecting tab passing through the void between the upper pad and the lower pad, the impedance control body being separate and discrete from the dielectric body of the organizer.

2 . The electrical device of claim 1 , wherein the impedance control body is a dielectric material being injection molded in situ on the organizer.

3 . The electrical device of claim 1 , wherein a length of covering of the conductors by the impedance control body is less than a total length of the conductor and selected based on the total length of the conductors with an uncovered length of the conductors being exposed to air to control the impedance of the signals transmitted by the conductors based on the covered length of the conductors and the uncovered length of the conductors.

4 . The electrical device of claim 1 , wherein the impedance control body fills the void.

5 . The electrical device of claim 1 , wherein the void is a through hole surrounded by the dielectric body, the impedance control body passing through the void to lock the upper pad and the lower pad to the organizer.

6 . The electrical device of claim 1 , wherein the impedance control body covers a termination interface between the conductors and the signal wires.

7 . The electrical device of claim 1 , wherein the upper pad, the lower pad and the connecting tab are an integral monolithic structure.

8 . The electrical device of claim 1 , wherein the organizer includes a locking post, the impedance control body being formed around the locking post to secure the impedance control body to the organizer.

9 . The electrical device of claim 1 , wherein the organizer includes an upper pocket defined between upper sidewalls and the organizer includes a lower pocket defined between lower sidewalls, the upper pad being received in the upper pocket, the lower pad being received in the lower pocket.

10 . The electrical device of claim 1 , wherein the signal wires are exposed at the ends of the cables beyond a cable jacket of the corresponding cable, the impedance control body covering the entire exposed signal wire and covering at least a length of the cable jacket of each cable.

11 . The electrical device of claim 1 , wherein the impedance control body extends between adjacent signal wires.

12 . The electrical device of claim 1 , wherein the cables include ground shields, the electrical device further comprising a ground bus bar having a base electrically connected to a plurality of the ground shields, the ground bus bar having ground contacts extending from the base being electrically connected to corresponding conductors, the impedance control body covering the base and at least a portion of each of the ground contacts.

13 . The electrical device of claim 12 , wherein the signal wires are arranged in pairs and the corresponding conductors are arranged in pairs, the ground contacts being positioned between corresponding pairs of the conductors.

14 . The electrical device of claim 1 , wherein the impedance control body engages the cables to secure the cables relative to the organizer to provide strain relief at the termination of the signal wires to the conductors.

15 . The electrical device of claim 1 , wherein the conductors comprise contacts having mating ends and terminating ends, the terminating ends being terminated to corresponding signal wires, the mating ends having deflectable spring beams extending forward of the organizer and defining an upper contact array and a lower contact array configured to mate to opposite upper and lower surfaces of a circuit card.

16 . The electrical device of claim 15 , wherein the contacts of the upper contact array are coupled together by an upper dielectric holder and the contacts of the lower contact array are coupled together by a lower dielectric holder, the upper pad being spaced apart from the upper dielectric holder such that portions of the contacts are exposed between the upper pad and the upper dielectric holder, the lower pad being spaced apart from the lower dielectric holder such that portions of the contacts are exposed between the lower pad and the lower dielectric holder.

17 . The electrical device of claim 1 , wherein the organizer is a circuit card, the dielectric body of the organizer comprising a card substrate, the conductors comprising traces of the circuit card, the card substrate having a card edge configured to be plugged into a card edge slot of the mating electrical device.

18 . An electrical device, comprising:
an organizer having a dielectric body including an upper surface and a lower surface, the organizer having a void extending between the upper surface and the lower surface; upper conductors on the upper surface having mating ends configured for mating with a mating electrical device; lower conductors on the lower surface having mating ends configured for mating with the mating electrical device; upper cables supported by the upper surface, the upper cables having upper signal wires; lower cables supported by the lower surface, the lower cables having lower signal wires; and an impedance control body coupled to the dielectric body of the organizer, the impedance control body having an upper pad on the upper surface directly engaging and covering at least a portion of each upper conductor and directly engaging and covering at least a portion of each upper signal wire, the impedance control body having a lower pad on the lower surface directly engaging and covering at least a portion of each lower conductor and directly engaging and covering at least a portion of each lower signal wire, the impedance control body having a connecting tab passing through the void between the upper pad and the lower pad, the impedance control body being separate and discrete from the dielectric body of the organizer.

19 . The electrical device of claim 18 , wherein the impedance control body is injection molded in situ on the organizer.

20 . An electrical device comprising:
a housing having a cavity, the housing having a mating end, the housing having a slot at the mating end providing access to the cavity and configured to receive a mating electrical device; cables extending from a cable end of the housing, each cable having a signal wire; an organizer received in the cavity, the organiz

Assignees

• Te Connectivity Corp

Inventors

• Henry Randall Robert
• Rowe Dustin Grant
• Wertz Jr Robert Harrison
• Lachman Julia Anne
• Swartzbaugh Jeff
• Pogash Christopher Michael

Classifications

• H01R13/6473 Primary

  Impedance matching · CPC title

• H01R13/5845

  the strain relief being achieved by molding parts around cable and connections · CPC title

• H01R12/62

  connecting to rigid printed circuits or like structures · CPC title

• H01R13/424

  Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part · CPC title

• H01R13/582

  the cable being clamped between assembled parts of the housing · CPC title