OPTICAL FIBER CONNECTOR

• US 20150003788A1
• Filed: 09/18/2014
• Published: 01/01/2015
• Est. Priority Date: 08/21/2009
• Status: Active Grant

• Current Assignee: Molex LLC (KOCH Industries Incorporated)
• Original Assignee: Molex Incorporated
• Inventors: Chen, Wenzong, Ernst, Scot, Kuprin, Igor, Smith, Brian, Szewczyk, Joanna, Matuszewski, Mark
• Granted Patent: US 9,146,364 B2
• Time in Patent Office: Days
• US Class Current: 385/72
• CPC Class Codes: G02B 6/3616 Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench supporting carriers of a microbench type G02B6/3648; micromanipulators B25J7/00; cassettes, bobbins G02B6/4439
• CPC Class Codes: G02B 6/3807 Dismountable connectors, i.e. comprising plugs
• CPC Class Codes: G02B 6/3809 without a ferrule embedding the fibre end, i.e. with bare fibre end
• 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 6/387 Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
• 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 6/3893 Push-pull type, e.g. snap-in, push-on

Abstract

An optical fiber connector includes a housing with at least one elongated cylindrical cavity, a fiber holder within the cavity including a ferrule which secures an optical fiber therein and a biasing member engaging the fiber holder to bias the ferrule towards an unmated position. A resilient metal latch is mounted on the housing for releasably securing the optical fiber connector to another component. A latch travel limiting structure prevents the latch from deflecting outside a desired predetermined path. Improved structures for mounting the latch on the housing and for creating a duplex connector assembly are also provided.

Claims

1. An optical fiber connector comprising:

a housing with at least one elongated cylindrical cavity and a latch mounting projection extending from a surface of the metal housing;

a fiber holder within said cavity, the fiber holder including a ferrule which secures an optical fiber therein;

a biasing member engaging the fiber holder to bias the ferrule towards an unmated position; and

a resilient metal latch having a W-shaped mounting portion, a manually manipulatable portion and at least one latching member for releasably securing the optical connector to another component, the W-shaped mounting portion having a pair of resilient spaced apart arms engaging opposite sides of the latch mounting projection.

2. The optical fiber connector of claim 1, wherein the latch mounting projection includes a locking projection extending therefrom.

3. The optical fiber connector of claim 2, wherein the W-shaped mounting portion of the resilient latch includes an opening through which the latch mounting projection extends.

4. The optical fiber connector of claim 3, wherein the opening in the W-shaped mounting portion is circular.

5. The optical fiber connector of claim 4, wherein a portion of the locking projection positioned within the circular opening is cylindrical.

6. The optical fiber connector of claim 5, wherein a portion of the locking projection above the W-shaped mounting portion is wider than the circular opening in order to secure the latch to the housing.

7. The optical fiber connector of claim 6, wherein the metal latch is a generally elongated strip of metal material having first and second ends.

8. The optical fiber connector of claim 7, wherein the resilient spaced apart arms of the W-shaped mounting portion project from opposite edges of the elongated strip adjacent the first end, the manually manipulatable portion being located adjacent the second end.

9. The optical fiber connector of claim 8, wherein the at least one latching projection being located between the resilient spaced apart arms and the manually manipulatable portion.

10. The optical fiber connector of claim 9, wherein the metal latch further includes a pair of latching members located between the resilient spaced apart arms and the manually manipulatable portion, the latching members projecting from the opposite edges of the elongated strip.

11. The optical fiber connector of claim 10, further including a latch travel limiting structure configured to engage the resilient metal latch and prevent the latch from deflecting beyond a desired predetermined path.

12. The optical fiber connector of claim 11, wherein the latch travel limiting structure prevents the latch from deflecting away from the metal housing more than a predetermined distance and prevents the latch from deflecting out of a common plane that extends through a longitudinal axis of the connector and a longitudinal axis of the metal latch.

13. The optical fiber connector of claim 12, wherein the latch travel limiting structure is a metal component having a hole therein with a portion of the metal latch extending through the hole.