Optical connector and method for connecting optical connector

Patent metadata

Field	Value
Publication number	US-2021173154-A1
Application number	US-201816761637-A
Country	US
Kind code	A1
Filing date	Nov 9, 2018
Priority date	Dec 1, 2017
Publication date	Jun 10, 2021
Grant date	—

Abstract

An optical connector includes: a ferrule including a guide pin hole, a plurality of fiber holes lined up in a width direction of the optical fiber, and an inclined end face; a housing in which the ferrule is retractably housed; and an application part that applies an upward force to the ferrule in an upward/downward direction when the optical connector connects with a counterpart connector in a connecting/disconnecting direction. The upward/downward direction is a height direction of the optical connector and is orthogonal to both the connecting/disconnecting direction and the width direction. The inclined end face projects upward toward the counterpart connector.

First claim

1 . An optical connector comprising:
a ferrule comprising:
a guide pin hole;
a plurality of fiber holes lined up in a width direction of the optical fiber; and
an inclined end face;
a housing in which the ferrule is retractably housed; and an application part that applies an upward force to the ferrule in an upward/downward direction when the optical connector connects with a counterpart connector in a connecting/disconnecting direction, wherein
the upward/downward direction is a height direction of the optical connector and is orthogonal to both the connecting/disconnecting direction and the width direction, and
the inclined end face projects upward toward the counterpart connector.

2 . The optical connector according to claim 1 , wherein the application part applies the upward force to the ferrule after fitting together a guide pin and a guide pin hole when the optical connector connects with the counterpart connector.

3 . The optical connector according to claim 2 , wherein the application part applies the upward force to the ferrule before the inclined end face of the ferrule contacts an inclined end face of a ferrule of the counterpart connector.

4 . The optical connector according to claim 1 , wherein the application part releases the upward force applied to the ferrule after applying the upward force to the ferrule.

5 . The optical connector according to claim 4 , wherein the application part releases the upward force applied to the ferrule after the inclined end face of the ferrule contacts an inclined end face of a ferrule of the counterpart connector.

6 . The optical connector according to claim 1 , wherein the application part applies the upward force to the ferrule by pressing a body part of the ferrule.

7 . The optical connector according to claim 1 , wherein the application part applies the upward force to the ferrule by pressing a collar part of the ferrule.

8 . The optical connector according to claim 1 , wherein the application part applies the upward force to the ferrule by applying force to a rear side of the ferrule.

9 . The optical connector according to claim 1 , further comprising:
a coupling mounted to the housing, wherein the application part applies the upward force to the ferrule in conjunction with movement of the coupling with respect to the housing.

10 . The optical connector according to claim 9 , wherein
the application part comprises a pressing part provided to the coupling, and when the coupling retracts into the housing, the pressing part presses the ferrule upward by moving upward while retracting along a guide face provided to the housing.

11 . The optical connector according to claim 9 , wherein
the application part comprises a pressing part provided to the housing, and when the coupling retracts into the housing, the pressing part presses the ferrule upward by receiving force from the coupling.

12 . The optical connector according to claim 10 , wherein the pressing part is disposed on an opposite side from a side of the housing where a key is provided.

13 . The optical connector according to claim 1 , wherein the application part applies the upward force to the ferrule in conjunction with movement of the ferrule with respect to the housing.

14 . The optical connector according to claim 13 , wherein
the application part comprises:
a protrusion that moves together with the ferrule; and
a contact part provided to the housing, and
when the ferrule retracts into the housing, the ferrule receives the upward force from the protrusion due to the protrusion that contacts the contact part.

15 . The optical connector according to claim 14 , wherein, when the ferrule retracts into the housing, the upward force to the ferrule is released while the protrusion moves over the contact part.

16 . The optical connector according to claim 14 , wherein
a depression is formed in a lower surface of the ferrule, and the protrusion is disposed in the depression and does not protrude below the lower surface of the ferrule.

17 . The optical connector according to claim 1 , wherein
the application part is a spring that presses the ferrule frontward in the connecting/disconnecting direction with respect to the housing, and a seat part at a rear end of the spring is inclined with respect to a plane perpendicular to an axial direction of the spring.

18 . A method for connecting an optical connector that comprises: a ferrule and a housing in which the ferrule is retractably housed, wherein the ferrule comprises a guide pin hole; a plurality of fiber holes lined up in a width direction; and an inclined end face, the method comprising:
applying an upward force to the ferrule in an upward/downward direction when the optical connector connects with a counterpart connector in a connecting/disconnection direction, wherein the upward/downward direction is a height direction of the optical connector and is orthogonal to both the connecting/disconnecting direction and the width direction, and the inclined end face projects upward toward the counterpart connector.

Assignees

• Fujikura Ltd

Inventors

• Otomitsu Takahito
• Kanno Shuhei
• Fujita Shunsuke
• Fujiwara Kunihiko

Classifications

• G02B6/3885

  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 title

• G02B6/3822

  with beveled fibre ends · CPC title

• G02B6/3869 Primary

  Mounting ferrules to connector body, i.e. plugs · CPC title

• G02B6/3882 Primary

  using rods, pins or balls to align a pair of ferrule ends · CPC title