OPTICAL CONNECTOR

• US 20140241671A1
• Filed: 12/19/2013
• Published: 08/28/2014
• Est. Priority Date: 02/25/2013
• Status: Active Grant

• Current Assignee: Japan Aviation Electronics Industry Limited
• Original Assignee: Japan Aviation Electronics Industry Limited
• Inventors: KATAGIYAMA, Naoki, KOREEDA, Yuichi, NAKAGAWA, Kohji, NOMURA, Rika
• Granted Patent: US 8,992,097 B2
• Time in Patent Office: Days
• US Class Current: 385/78
• CPC Class Codes: G02B 6/381 of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
• 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 6/3885 Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type optical ribbon cable G02B6/4403, G02B6/448
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence

Abstract

There is provided an optical connector configured to receive a plurality of MT ferrules attached to terminal ends of multi-fiber cables. The optical connector includes a housing through which multiple receiving holes receiving the MT ferrules are bored. The receiving holes are arranged in the direction of the long side of front end faces of the MT ferrules. A pair of holding elements is provided in each of the receiving holes. The pair of holding elements is positioned at both ends in the direction in which the receiving holes are arranged and protrude to a side at which the MT ferrules are inserted. Both ends of a rear end flange of each of the MT ferrules placed in the receiving holes are held by the pair of holding elements. The optical connector enables easy setting-in of MT ferrules and reduction in size of optical connectors can be achieved.

Claims

1. An optical connector configured to receive a plurality of MT ferrules attached to terminal ends of multi-fiber cables,

the optical connector comprising a housing through which a plurality of receiving holes receiving the MT ferrules are bored, the receiving holes being arranged in a direction of a long side of front end faces of the MT ferrules;

wherein a pair of holding elements are provided in each of the receiving holes;

the pair of holding elements are positioned at both ends in the direction in which the receiving holes are arranged and protrude to a side at which the MT ferrules are inserted; and

both ends of a rear end flange of each of the MT ferrules placed in the receiving holes are held by the pair of holding elements.

2. The optical connector according to claim 1, wherein the pair of holding elements include engage windows each engaging with each of the both ends of the flange.

3. The optical connector according to claim 1, wherein the housing includes two or more closely arranged rows of the receiving holes.

4. The optical connector according to claim 2, wherein the housing includes two or more closely arranged rows of the receiving holes.

5. The optical connector according to any one of claims 1 to 4,

wherein the pair of holding elements are formed by both legs of an angular U-shape of a plate spring bent into the angular U-shape;

and

an intermediate part of the angular U-shape of the plate spring includes a window in which one of the MT ferrules is located.

6. The optical connector according to claim 3,

wherein the pair of holding elements are formed by both legs of an angular U-shape of a plate spring bent into the angular U-shape;

an intermediate part of the angular U-shape of the plate spring includes a window in which one of the MT ferrules is located; and

adjacent ones of the plate springs in the two or more rows are joined by a joining part into one.

7. The optical connector according to claim 4,

wherein the pair of holding elements are formed by both legs of an angular U-shape of a plate spring bent into the angular U-shape;

an intermediate part of the angular U-shape of the plate spring includes a window in which one of the MT ferrules is located; and

adjacent ones of the plate springs in the two or more rows are joined by a joining part into one.

8. The optical connector according to claim 5, wherein the plate spring includes a latch tab to be press-fitted into the receiving hole and latched in the receiving hole.

9. The optical connector according to claim 6, wherein the plate spring includes a latch tab to be press-fitted into the receiving hole and latched in the receiving hole.

10. The optical connector according to claim 7, wherein the plate spring includes a latch tab to be press-fitted into the receiving hole and latched in the receiving hole.

11. The optical connector according to claim 5, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

12. The optical connector according to claim 6, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

13. The optical connector according to claim 7, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

14. The optical connector according to claim 8, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

15. The optical connector according to claim 9, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

16. The optical connector according to claim 10, wherein the receiving hole includes a raised part in an inner surface of the receiving hole, the raised part restricting movement of the MT ferrule in a direction parallel to the front end face of the MT ferrule.

17. The optical connector according to claim 1,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

18. The optical connector according to claim 2,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

19. The optical connector according to claim 3,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

20. The optical connector according to claim 4,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

21. The optical connector according to claim 5,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

22. The optical connector according to claim 6,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.

23. The optical connector according to claim 7,

wherein the multi-fiber cables are lead from a backboard on which optical fibers are installed;

and

the housing is attached to the backboard so that a direction in which the receiving holes are bored is vertical to a plane surface of the backboard.