Fiber channel-inter changeable fiber optic connector

• US 8,727,638 B2
• Filed: 12/21/2011
• Issued: 05/20/2014
• Est. Priority Date: 12/21/2011
• Status: Expired due to Fees

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Alliance Fiber Optic Products Incorporated (Corning Incorporated)
• Inventors: Lee, Jhih-Ping, Hsu, Kuo-Fu
• Primary Examiner(s): Le, Uyen Chau N
• Assistant Examiner(s): Smith, Chad
• Application Number:
  US13/332,561
• Publication Number:
  US 20130163934A1
• Time in Patent Office: 881 Days
• Field of Search: 385/139
• US Class Current: 385/78
• CPC Class Codes: G02B 6/3879 Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs
• CPC Class Codes: G02B 6/3887 Anchoring optical cables to connector housings, e.g. strain relief features

Abstract

A fiber channel-interchangeable fiber optic connector includes an adapter, two connectors respectively rotatably mounted in respective axle holes at the front side of the adapter, a sub-assembly detachably attached to the adapter to stop the connectors from rotation and hold down the connectors in position, and a cable inserted through the sub-assembly and mounted in the adapter with two optical-fiber cores therein respectively inserted into ferrules of the connectors. Detaching the sub-assembly from the adapter allows rotation of the connectors and the sub-assembly through 180-degrees angle relative to the adapter to interchange the fiber channels.

Claims

1. A fiber channel-interchangeable fiber optic connector, comprising:

an adapter comprising an inside accommodation chamber, two axle holes located on a front side thereof in a parallel manner and axially disposed in communication with said inside accommodation chamber, and two springy hooks respectively and obliquely backwardly extended from opposing top and bottom walls thereof;

two connectors, each said connector comprising a connector housing, a connection member, a ceramic tube, a boot, a ferrule and a dust cap, said connector housing comprising a latch obliquely extended from a top wall thereof, said connection member being mounted in a rear side of said connector housing and comprising a hollow base, a tubular axle perpendicularly extended from a back side of said hollow base and inserted into one said axle hole of said adapter, a front tube perpendicularly extended from a front side of said hollow base and kept in axial alignment with said tubular axle, said ceramic tube being mounted in said connector housing and said connection member and partially extending out of a front side of said connector housing, said boot being mounted in said connection member and attached to a rear end of said ceramic tube, said ferrule being attached to a rear end of said boot and partially extending out of said tubular axle of said connection member, said dust cap being fastened to a front side of said connector housing;

a sub-assembly adapted for housing said adapter, said sub-assembly comprising an accommodation chamber extending through opposing front and rear sides thereof for accommodating said adapter, a bottom locating hole located on a rear side of a bottom wall thereof for engagement with the springy hook at the bottom wall of said adapter, a top locating hole located on a rear side of a top wall thereof for engagement with the springy hook at the top wall of said adapter, and a press plate forwardly upwardly extended from the rear side of the top wall thereof and kept in contact with the latches of said two connectors; and

a cable inserted through said sub-assembly and mounted in said adapter, said cable comprising two optical-fiber cores extending into said accommodation chamber of said adapter and respectively inserted into the ferrules of said connectors, a strain relief surrounding said optical-fiber cores and inserted into said sub-assembly.

2. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said adapter further comprises two annular locating grooves respectively extending around respective inner ends of said axle holes and kept in communication with said inside accommodation chamber, said annular locating grooves having a diameter greater than said axle holes;

each said connector further comprises a coupling flange extending around the periphery of the tubular axle thereof and coupled to one said annular locating groove of said adapter.

3. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said sub-assembly and said adapter respectively gradually reduce in width from the front side toward the rear side thereof;

said adapter further comprises two triangle stop blocks respectively located on opposing left and right sidewalls thereof, each said triangle stop block defining a vertical stop face at a rear side thereof;

said sub-assembly further comprises two side holes respectively located on opposing left and right sidewalls thereof for receiving said triangle stop blocks of said adapter for enabling the vertical stop faces of said triangle stop blocks to be stopped against respective rear end edges of said side holes.

4. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said adapter further comprises a tubular rear coupling backwardly extended from a rear side thereof in communication with said inside accommodation chamber;

said cable further comprises a coupling extended from said strain relief around said optical-fiber cores and fastened to the tubular rear coupling of said adapter.

5. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said connector housing of each said connector further comprises a retaining hole located on each of two opposite sidewalls thereof;

said connection member of each said connector further comprises two retaining blocks respectively protruded from the periphery of the front tube thereof at two opposite sides and respectively forced into engagement with the respective retaining holes of the associating connector housing.

6. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein each said connector further comprises a spring member sleeved onto said ferrule and stopped between said boot and said hollow base of said connection member.

7. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said sub-assembly further comprises two guide grooves respectively disposed at opposing top and bottom sides in said accommodation chamber in communication with said bottom locating hole and said top locating hole for guiding said springy hooks of said adapter into engagement with said bottom locating hole and said top locating hole.

8. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said connector housing of each said connector has a rectangular configuration;

said hollow base of said connection member of each said connector has a rectangular configuration;

said sub-assembly further comprises two stop strips forwardly extended from the top wall thereof and respectively stopped at respective top sides of the hollow bases of the connection members of said two connectors.

9. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said adapter is a one-piece member.

10. The fiber channel-interchangeable fiber optic connector as claimed in claim 1, wherein said adapter consists of a first adapter shell member and a second adapter shell member, said first adapter shell member and said second adapter shell member each comprising a locating pin and a pinhole respectively disposed at two opposite lateral sides and a hook and a hook hole respectively disposed adjacent to said axle holes, the locating pin of one of said first adapter shell member and said second adapter shell member being plugged into the pinhole of the other of said first adapter shell member and said second adapter shell member, the hook and hook hole of said first adapter shell member being respectively forced into engagement with the hook hole and hook of said second adapter shell member.