Combination optical fiber and electrical connector

• US 5,140,659 A
• Filed: 04/01/1991
• Issued: 08/18/1992
• Est. Priority Date: 01/28/1991
• Status: Expired due to Term

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: Hughes Aircraft Company (Rtx Corporation)
• Inventors: Ellman, Leonard, Minds, Kevin S.
• Primary Examiner(s): Healy, Brian
• Application Number:
  US07/646,045
• Time in Patent Office: 505 Days
• Field of Search: 350/96.10, 350/96.20, 350/96.21, 350/96.22, 350/96.23, 244/3.12, 244/3.16, 439/577, 385/56, 385/58, 385/66, 385/55, 385/100, 385/101, 385/147, 385/68
• US Class Current: 385/66
• CPC Class Codes: F41G 7/32 for wire-guided missiles
• CPC Class Codes: F42B 15/04 using wire, e.g. for guiding ground-to-ground rockets
• CPC Class Codes: G02B 6/3817 containing optical and electrical conductors cables including electrical and optical conductors H01B11/22; G02B6/3816 takes precedence
• CPC Class Codes: G02B 6/4416 Heterogeneous cables

Abstract

A combination connector (20) includes a first half connector (22) with a fixed central body (40) and a slidable exterior housing (54) that is biased to a first position, and a second half connector (24) with a fixed exterior housing (70) and a slidable interior body (82) that is biased to a first position. The fixed central body (40) of the first half connector (22) has electrical contacts (42) on its periphery, and the fixed exterior housing (70) has electrical contacts on its interior wall. The slidable exterior housing (54) of the first half connector (22) protects the connection points before the connection is made, and is pushed back to expose the connection points as the two connectors are mated together. The slidable interior body (82) of the second half connector (24) includes a shorting ring (88) that shorts out the electrical contacts (74) of the second half connector (24) before the connection is made, and is pushed back to expose the electrical contacts (74) when the first and second half connectors (22, 24) are mated. One half of a fiber optic cable (48) extends longitudinally through the fixed central body (40) of the first half connector (22), and the other half of the optical cable (80) extends longitudinally through the second half connector (24), and the two are placed into axial contact when the two halves (22, 24) are brought together. The first and second half connectors (22, 24) are dimensioned to ensure registration of the appropriate parts as they are pushed together.

Claims

1. A connector that provides both electrical and fiber optic connections, comprising a first half connector, including

a fixed central body having at least two electrical connector terminals on, and spaced circumferentially around, the periphery thereof;

at least one fiber optic connector extending longitudinally through the fixed central body;

a slidable exterior housing that can slide longitudinally along the periphery of the fixed central body, the slidable exterior housing having a first longitudinal position when no connection is made; and

first biasing means for biasing the exterior housing to its first longitudinal position.

2. The connector of claim 1, wherein the fiber optic connector is located in the center of the central body.

3. The connector of claim 1, wherein the fiber optic connector includes a hollow pin.

4. The connector of claim 3, wherein the fiber optic connector includes an optical fiber extending through the hollow pin.

5. The connector of claim 1, wherein the central body is cylindrical.

6. The connector of claim 1, further including a second half connector having a second fiber optic connector extending longitudinally therein and disposed to engage the fiber optic connector of the first half connector when the two half connectors are joined.

7. The connector of claim 6, wherein the fiber optic connector of the first half connector includes a hollow pin with an optical fiber extending through the hollow pin.

8. The connector of claim 7, wherein the fiber optic connector of the second half connector includes a pin receiver dimensioned and disposed to receive the hollow pin of the first half connector, and further includes an optical fiber extending through the pin receiver.

9. The connnector of claim 1, further comprising a second half connector, including

a fixed exterior housing having at least two electrical connector terminals on, and spaced circumferentially around, the interior wall thereof, the fixed exterior housing being externally dimensioned to register to the slidable exterior housing of the first half connector and internally dimensioned to register to the periphery of the fixed central body of the first half connector, so that the electrical connector terminals of the first half connector engage the electrical connector terminals of the second half connector when the second half connector is engaged to the first half connector;

a slidable interior body that can slide longitudinally along the interior wall of the fixed exterior housing, the interior body having a seal at one end thereof to prevent foreign matter from entering the interior of the second half connector and a peripheral conductive ring for shorting the electrical connector terminals on the interior wall of the fixed exterior housing, when the slidable interior housing is in a first position wherein no connection is made;

at least one fiber optic connector extending longitudinally through the fixed central body and disposed to engage the fiber optic connector of the first half connector when the two half connectors are joined; and

second biasing means for biasing the slidable interior body toward its first position.

10. A connector that provides both electrical and fiber optic connections, comprising:

a first half connector, comprising

a fixed central body having a plurality of electrical bar contacts on, and spaced circumferentially around, the periphery thereof,

at least one fiber optic connector extending longitudinally through the fixed central body, the fiber optic connector having a longitudinally extending hollow tube and a fiber optic cable therein,

a slidable exterior housing that can slide longitudinally along the periphery of the fixed central body, the slidable exterior housing having a first longitudinal position when no connection is made,

keying means for maintaining a preselected angular relationship between the central body and the exterior housing, and

first biasing means for biasing the exterior housing toward its first longitudinal position; and

a second half connector, comprising

a fixed exterior housing having a plurality of electrical spring contacts on, and spaced circumferentially around, the interior wall thereof at angular locations corresponding to those of the bar contacts of the first half connector, the fixed exterior housing being externally dimensioned to register to the slidable exterior housing of the first half connector and internally dimensioned to register to the periphery of the fixed central body of the first half connector, so that the electrical bar contacts of the first half connector engage the electrical spring contacts of the second half connector when the second half connector is engaged to the first half connector,

a slidable interior body that can slide longitudinally along the interior wall of the fixed exterior housing, the interior body having a seal at an external end thereof to prevent foreign matter from entering the interior of the second half connector and a peripheral conductive ring for shorting the electrical connector terminals on the interior wall of the fixed exterior housing, when the slidable interior housing is in a first position wherein no connection is made,

at least one fiber optic connector extending longitudinally through the fixed central body and disposed to engage the fiber optic connector of the first half connector when the two half connectors are joined, the fiber optic connector of the second half connector including a longitudinally extending tube supported on the fixed exterior housing that receives the longitudinally extending tube of the first half connector therein, and has a fiber optic cable in the center thereof, and

second biasing means for biasing the slidable interior body toward its first position.

11. A missile system, comprising:

a reusable launch system, including a missile guidance set, a cable across which commands and data are transmitted, and a first half connector, comprising

a fixed central body having at least two electrical connector terminals on, and spaced circumferentially around, the periphery thereof,

at least one fiber optic connector extending longitudinally through the fixed central body,

a slidable exterior housing that can slide longitudinally along the periphery of the fixed central body, the slidable exterior housing having a first longitudinal position when no connection is made, and

first biasing means for biasing the exterior housing to its first longitudinal position; and

a disposable missile system, including a powered vehicle body, a control cable extending from the missile, and a second half connector, comprising

a fixed exterior housing having at least two electrical connector terminals on, and spaced circumferentially around, the interior wall thereof, the fixed exterior housing being externally dimensioned to register to the slidable exterior housing of the first half connector and internally dimensioned to register to the periphery of the fixed central body of the first half connector, so that the electrical connector terminals of the first half connector engage the electrical connector terminals of the second half connector when the second half connector is engaged to the first half connector,

a slidable interior body that can slide longitudinally along the interior wall of the fixed exterior housing, the interior body having a seal at one end thereof to prevent foreign matter from entering the interior of the second half connector and a peripheral conductive ring for shorting the electrical connector terminals on the interior wall of the fixed exterior housing, when the slidable interior housing is in a first position wherein no connection is made,

at least one fiber optic connector extending longitudinally through the fixed central body and disposed to engage the fiber optic connector of the first half connector when the two half connectors are joined, and

second biasing means for biasing the slidable interior body toward its first position.