Backshell assembly
AssigneeSilicon Graphics, Inc.
InventorsDuane Friesen, Val Mandrusov
Life of this patent
Estimating the term…
Abstract
A cable connector backshell assembly for high frequency applications requiring reduced electromagnetic emissions. Aspects include providing sufficient physical spacing and electrical isolation between the signal conductors and the housing to meet EMI standards for HIPPI-6400 connector assemblies. One embodiment includes spring preloading of the electrical connecter. One embodiment includes a longitudinally floating connector.
Claims26
A high frequency connector apparatus comprising:
- an electrical connector having a cable end and a coupling end, the cable end adapted for receiving a conductive cable and the coupling end adapted for mating with a matching connector;
- an insulative member encasing the electrical connector, the insulative member surrounding the electrical connector between the cable end and the coupling end;
- an electrically conductive housing adapted to receive the insulative member, the housing having a nose end and a cable orifice, the nose end proximate to the coupling end and the cable orifice proximate to the cable end, the housing further comprising a bottom and a lid;
- and
- a plurality of clamping screws engaging the housing and threadably coupling with the matching connector.
A backshell comprising:
- an electrical connecter having sides, a mating end and a cable end, the connector having an insulated shell substantially surrounding the sides, the mating end adapted to mate with a matching connector in an electrical circuit housing, and the cable end adapted to receive an electrical conductor of a cable;
- a housing having a longitudinal axis and including a mating face near a first end of the axis, a cable orifice near a second end of the axis, two side walls aligned substantially parallel to the longitudinal axis, a bottom and a lid defining an interior of the housing, the mating end proximate the mating face and the cable end proximate the cable orifice, the housing including a way for receiving the electrical connector and adapted for permitting relative movement of the electrical connector and the housing along the longitudinal axis, the housing further including a clamping surface, the clamping surface having a fixed position relative to the mating face, the housing having a bore, the bore aligned substantially parallel with the longitudinal axis, and further wherein the housing is electrically conductive;
- a clamping screw, the screw having a thread portion, a shoulder and a head, the clamping screw passing through the bore, wherein the thread portion is proximate the mating face and the head is proximate the cable orifice and further wherein the shoulder is adapted for exerting pressure on the clamping surface;
- and
- a spring, the spring exerting a force urging the electrical connector in the direction of the mating face;
- wherein engagement of the clamping screw with a threaded standoff associated with the matching connector causes the mating face to be drawn towards the electrical circuit housing and further wherein the spring urges the electrical connector to engage the matching connector.
A connector apparatus comprising:
- an electrical connecter having sides, a mating end and a cable end, the connector having an insulated shell substantially surrounding the sides, the mating end adapted to mate with a matching connector coupled to an electrical circuit housing, and the cable end adapted to receive an electrical conductor of a cable;
- a metal housing having a longitudinal axis and including a mating face near a first end of the axis, a cable orifice near a second end of the axis, two side walls aligned substantially parallel to the longitudinal axis, a bottom and a removable lid defining an interior of the housing, the mating end proximate the mating face and the cable end proximate the cable orifice, the housing adapted for receiving the electrical connector, the housing further including a clamping surface, the clamping surface proximate to one of the side walls and extending towards the interior space, the clamping surface having a bore aligned substantially parallel with the longitudinal axis;
- a clamping screw, the screw having a thread portion, a shoulder and a head, the clamping screw passing through the bore in the clamping surface, wherein the thread portion is proximate the mating end and the head is proximate the cable orifice and further wherein the shoulder is adapted for exerting clamping pressure on the clamping surface;
- and
- wherein engagement of the clamping screw with a threaded standoff associated with the matching connector causes the mating face to be drawn towards the electrical circuit housing.
A connector housing comprising:
- a conductive receptacle having an interior and an exterior, the receptacle having a nose end and a terminating end aligned substantially along a longitudinal axis;
- a clamping surface coupled to the receptacle, the clamping surface adapted to oppose a force exerted on an axis aligned substantially parallel to the longitudinal axis;
- a connector cavity on the interior of the receptacle, the cavity receiving an electrical connector encased in an insulative jacket, the electrical connector adapted for coupling to a cable, the cable routed via the terminating end;
- wherein the conductive receptacle is electrically isolated from the connector and the conductors of the cable.
A method of manufacturing a connector, the method comprising:
- providing a conductive housing, the housing having a nose and a terminating end and further including an interior and an exterior;
- providing an electrical connector, the connector having a plurality of conductive members and encased in a conductive jacket;
- providing an insulative jacket surrounding the conductive jacket of the electrical connector, the insulative jacket rigidly secured to the electrical connector;
- and
- providing a mechanical fastener to enable coupling the housing to a matching connector.
Dependencies are inferred from the claim text.