Optical connector and optical connector module

Abstract

The present invention relates to an optical connector and an optical connector module, comprising: an inner shell, provided with a head located at the front for configuring a ceramic ferrule and a supporting part body provided with an inner cavity, the side of the supporting part body is provided with an elastic arm that can move toward the inner cavity, and a card block is provided on the elastic arm; an outer shell, provided with a bayonet that cooperates with the card block, the outer shell is sleeved on the supporting part body and can move forward and backward along the supporting part body, the outer shell can be moved to make the card block extend out of the outer shell from the bayonet, and when moving toward the rear, it can be moved to squeeze the card block so that the card block is stored in the bayonet.

Description

Technical Field

[0001] The invention relates to an optical connector and an optical connector module. Background Art

[0002] At present, optical connectors, especially duplex optical connectors, generally use dual LC ceramic ferrules. The main body of the optical connector is flat as a whole. The optical connector is fixed mainly by configuring a hook in the adapter. For example, application number 201810778727.0 and application number 201980003992.4, both applicants are Fan Hong Kong Devices Co., Ltd., and both configure a hook in the adapter, and pull the optical connector housing so that the housing pushes the hook in the adapter to separate the adapter from the optical connector. However, the disadvantage of this method is that a hook needs to be provided in the adapter, the internal structure is relatively complex, and due to the different positions of the hooks of different manufacturers, the universality is poor. Summary of the invention

[0003] In order to solve the problems in the prior art, the present invention provides an optical connector and an optical connector module.

[0004] The technical solution provided by the present invention is:

[0005] An optical connector, comprising:

[0006] The inner housing is provided with a head located at the front for arranging a ceramic ferrule and a supporting body provided with an inner cavity, a side of the supporting body is provided with an elastic arm movable toward the inner cavity, and a clamping block is provided on the elastic arm;

[0007] The outer shell is provided with a bayonet that cooperates with the card block. The outer shell is sleeved on the support part body and can move forward and backward along the support part body. The outer shell can be moved to make the card block extend out of the outer shell from the bayonet, and when moving backward, it can be moved to squeeze the card block so that the card block is stored in the bayonet.

[0008] Preferably, the surface of the clamping block facing the head is configured as a slope surface allowing sliding, and the surface of the clamping block facing the rear of the optical connector is configured as a vertical clamping surface relative to the outer shell.

[0009] Preferably, it further comprises a tail sleeve portion, and the tail sleeve portion is fixed to the tail portion of the outer shell through a fixing structure.

[0010] Preferably, the inner shell is provided with a tail shell which can be separated from the main body of the inner shell, the tail shell is arranged at the tail of the main body of the inner shell through a bayonet, and the tail shell is provided with a slot which can be inserted from the side surface and allows the optical cable to pass through and enter the inner cavity.

[0011] Preferably, the front part of the optical cable is sleeved in a crimping ring provided with a heat shrink tube, the crimping ring is inserted into a crimping seat to fix the aramid in the optical cable, and the head of the crimping seat can be inserted from the side and fixed in the slot.

[0012] Preferably, the elastic arm is configured to extend forward from the rear of the inner shell or to extend backward from the head; and a card block for distinguishing polarity is provided on one side of the outer shell.

[0013] Preferably, it further comprises a ceramic ferrule assembly and a spring, wherein the spring is arranged in the inner cavity, one end of the spring abuts against the ceramic ferrule assembly, and the other end abuts against the tail of the inner shell.

[0014] Preferably, when the outer shell abuts against the head, the clamping block extends out of the outer shell from the clamping port, and the clamping block abuts against the clamping port.

[0015] Preferably, a relief portion for evading a spring is provided on the inner side of the elastic arm.

[0016] An optical connector module comprises: an optical connector and an adapter;

[0017] The optical connector comprises:

[0018] The inner housing is provided with a head located at the front for arranging a ceramic ferrule and a supporting body provided with an inner cavity, a side of the supporting body is provided with an elastic arm movable toward the inner cavity, and a clamping block is provided on the elastic arm;

[0019] The outer shell is provided with a bayonet matched with the card block, the outer shell is sleeved on the support part body and can move forward and backward along the support part body, the outer shell can be moved to make the card block extend out of the outer shell from the bayonet, and when moving backward, the outer shell can be moved to squeeze the card block so that the card block is stored in the bayonet;

[0020] The adapter comprises:

[0021] The adapter is provided with a fixing port for clamping the clamping block, and the adapter is used to adapt to and fix the inserted optical connector.

[0022] Beneficial effects of the present invention:

[0023] The optical connector and the optical connector module of the present invention can be directly configured on the adapter through the hook of the optical connector itself, and the outer shell of the optical connector can be pulled to separate from the adapter. The adapter itself only needs to have a fixing port for fixing the optical connector to clamp the card block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the exploded structure of the optical connector of the present invention;

[0025] Figure 2 is a schematic diagram of the internal cross-sectional structure of the optical connector of the present invention;

[0026] Figure 3 is a schematic diagram of the three-dimensional structure of the optical connector of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the optical connector of the present invention, in which the elastic arm is located at the front;

[0028] Figure 5 It is a schematic structural diagram of the optical connector of the present invention, in which the elastic arm is located at the rear;

[0029] Figure 6 It is a schematic structural diagram of the optical connector of the present invention in a use state when the elastic arm is located at the rear;

[0030] Figure 7 It is a schematic structural diagram of the optical connector of the present invention in a use state when the elastic arm is located at the front;

[0031] Figure 8 A schematic diagram of a use state of an optical connector module of the present invention;

[0032] Fig. 9 It is a schematic diagram of the exploded structure of the optical cable fixing part of the optical connector of the present invention. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings. An optical connector, such as Figure 1 , Figure 2 and Figure 3 As shown, including:

[0034] The inner housing 1 is provided with a head 2 for arranging a ceramic ferrule at the front and a support body 3 provided with an inner cavity, a side of the support body 3 is provided with an elastic arm 4 that can move toward the inner cavity, and a clamping block 5 is provided on the elastic arm 4;

[0035] Here, the inner housing 1 is flat, and the optical connector is usually located at a relatively narrow side for fixing with the adapter 22. A cavity is provided in the head 2 to allow two LC type ceramic ferrules to be arranged, and the ceramic ferrules can move backwards according to the mandatory industry standards.

[0036] The inner cavity is used to configure the ceramic ferrule assembly 12, optical fiber core wire and spring 13 of the optical cable. For the convenience of installation, the rear part of the inner cavity can usually be separated from the main body to install the above parts. Therefore, the inner shell 1 is provided with a tail shell 6 that can be separated from the main body of the inner shell 1. The tail shell 6 is arranged at the tail of the supporting part main body 3 through a bayonet 7. The bayonet 7 is a protruding block, which is fixed by matching with the bayonet 8 arranged at the tail of the main body of the inner shell 1; the tail shell 6 is provided with a slot 9 that can be inserted from the side surface and allows the optical cable to pass through and enter the inner cavity. The side opening of the slot 9 is arranged on a wider surface, so that it is convenient to insert the crimping seat 16 for fixing the optical cable during assembly.

[0037] like Figure 5 As shown, the elastic arm 4 can be configured to extend forward from the rear of the inner shell 1. In this case, the elastic arm 4 can be configured on the rear tail shell 6, or as shown in FIG. Figure 4 As shown, it is configured to extend backward from the head 2;

[0038] Regardless of how the elastic arm 4 is arranged, since the action of the optical connector is to insert the adapter 22 and clamp it, the clamping block 5 is configured as a slope that allows sliding on the surface facing the head 2, usually a 45-degree slope, and the surface facing the rear of the optical connector is configured as a vertical stop surface relative to the outer shell 10, which can be relatively vertical or slightly obtuse so as to hook the adapter 22.

[0039] The inner side of the elastic arm 4 is provided with an escape portion 11 for escaping the spring 13 , which allows the spring to slide more smoothly and prevents the end of the elastic arm 4 from being stuck in the gap of the spring 13 .

[0040] The inner cavity is mainly used to configure a ceramic ferrule assembly 12 and a spring 13. The optical fiber of the optical cable is located in the spring 13. The spring 13 is arranged in the inner cavity. One end of the spring 13 abuts against the ceramic ferrule assembly 12, and the other end abuts against the tail of the inner shell 1, usually this side abuts against the tail shell 6; the ceramic ferrule assembly 12 is mainly divided into a ceramic ferrule body and a tail pin. The tail pin is used to abut against the spring 13. The ceramic ferrule body and the tail pin belong to the prior art and are not described here.

[0041] Fixing of optical cables and connectors: Fig. 9As shown, the front part of the optical cable is sleeved in a crimping ring 15 provided with a heat shrink tube 14. After the optical cable is sleeved in the crimping ring 15, the aramid in the optical cable is pulled out, and the crimping ring 15 is inserted into the crimping seat 16 to fix the aramid in the optical cable in a clamping manner. Then, the heat shrink tube 14 is heated to fix the optical cable on the crimping ring 15 and the crimping seat 16, and then the optical fiber core wire of the optical cable is inserted into the inner cavity from the slot 9. Since the head 17 of the crimping seat 16 is set to be larger than the main body of the crimping seat 16 and is block-shaped, it cooperates with the slot 9 and can be inserted from the side of the slot 9 and fixed in the slot 9, thereby fixing the optical cable to the optical connector.

[0042] The outer shell 10 is provided with a bayonet 18 that cooperates with the card block 5. The outer shell 10 is sleeved on the support body 3 and can move forward and backward along the support body 3. The outer shell 10 can be moved to make the card block 5 extend from the bayonet 18 to the outer shell 10 so that the card block 5 hooks the adapter, and as Figure 6 and Figure 7 As shown, when moving to the rear, the card block 5 can be moved to be accommodated in the bayonet 18 by moving and squeezing the card block 5. The portion of the bayonet 18 located near the front can be thickened, and the portion of the inner side near the front that contacts the card block 5 is set to have a certain curvature to facilitate relative sliding with the card block 5. Since the elastic arm 4 has the ability to move inward, that is, toward the inner cavity, when the card block 5 is pushed, the card block 5 will shrink inward until it shrinks into the bayonet 18. If the optical connector is fixed on the adapter 22, the outer shell 10 is pulled, the inner shell 1 is relatively immobile, and the card block 5 gradually shrinks until it can be completely pulled out. When the optical connector is pulled out with such a setting, only one action of pulling the outer shell 10 backward is required, and the action is simple and reliable.

[0043] The best configuration is that the head 2 is configured to protrude from the supporting body 3, and when the outer shell 10 abuts against the head 2, the block 5 extends from the bayonet 18 to the outer shell 10, and at the same time the block 5 abuts against the bayonet 18, that is, the block 5 is equivalent to also relative to the position of the outer shell 10, so that the outer shell 10 is subjected to a forward component force, so that the outer shell 10 is relatively fixed at the front when it is not pulled by external force.

[0044] The rear part of the outer shell 10 is also provided with a tail sleeve 19, which is fixed to the tail of the outer shell 10 through a fixing structure 20. The fixing structure 20 is a block body of the tail sleeve 19 that cooperates with a bayonet provided at the tail of the outer shell 10. The tail sleeve 19 and the outer shell 10 act together. The tail sleeve 19 is mainly used to protect the tail part of the inner shell 1 and the optical cable. A block 21 for distinguishing polarity is provided on one side of the outer shell 10.

[0045] The present invention also provides an optical connector module, such as Figure 8 As shown, it includes: an optical connector and an adapter 22;

[0046] The optical connector comprises:

[0047] The inner housing 1 is provided with a head 2 for arranging a ceramic ferrule at the front and a support body 3 provided with an inner cavity, a side of the support body 3 is provided with an elastic arm 4 that can move toward the inner cavity, and a clamping block 5 is provided on the elastic arm 4;

[0048] The outer shell 10 is provided with a bayonet 18 that cooperates with the card block 5. The outer shell 10 is sleeved on the support body 3 and can move forward and backward along the support body 3. The outer shell 10 can move to make the card block 5 extend out of the outer shell 10 from the bayonet 18, and when moving backward, it can move to squeeze the card block 5 so that the card block 5 is stored in the bayonet 18;

[0049] The adapter 22 comprises:

[0050] The adapter 22 is provided with a fixing opening 23 for clamping the clamping block 5 , and the adapter 22 is used to adapt to and fix the inserted optical connector.

[0051] The present invention has been described in detail by preferred embodiments. However, variations and additions to the various embodiments will be apparent to those skilled in the art upon reading the foregoing. It is the applicant's intention that all such variations and additions fall within the scope of protection of the claims of the present invention.

Claims

1. An optical connector, characterized in that: include: The inner housing is provided with a head located at the front for arranging a ceramic ferrule and a supporting body provided with an inner cavity, a side of the supporting body is provided with an elastic arm movable toward the inner cavity, and a clamping block is provided on the elastic arm; The outer shell is provided with a bayonet that cooperates with the card block. The outer shell is sleeved on the support part body and can move forward and backward along the support part body. The outer shell can be moved to make the card block extend out of the outer shell from the bayonet, and when moving toward the rear, it can be moved to squeeze the card block so that the card block is stored in the bayonet; the card block is used to cooperate with the adapter to detachably configure the connector to the adapter.

2. The optical connector according to claim 1, wherein: The surface of the clamping block facing the head is configured as a slope surface allowing sliding, and the surface of the clamping block facing the rear of the optical connector is configured as a vertical clamping surface relative to the outer shell.

3. The optical connector according to claim 2, wherein: It also includes a tail sleeve part, which is fixed to the tail of the outer shell through a fixing structure.

4. The optical connector according to claim 1, wherein: The inner housing is provided with a tail housing which can be separated from the main body of the inner housing. The tail housing is arranged at the tail of the main body of the inner housing through a bayonet. The tail housing is provided with a slot which can be inserted from the side surface and allows the optical cable to pass through and enter the inner cavity.

5. The optical connector according to claim 4, characterized in that: The front part of the optical cable is sleeved in a crimping ring provided with a heat shrink tube, the crimping ring is inserted into a crimping seat to fix the aramid in the optical cable, and the head of the crimping seat can be inserted from the side and fixed in the card slot.

6. The optical connector according to claim 1, characterized in that: The elastic arm is configured to extend forward from the rear of the inner shell or is configured to extend backward from the head; A card block for distinguishing polarity is provided on one side of the outer shell.

7. The optical connector according to any one of claims 1 to 6, characterized in that: It also includes a ceramic ferrule assembly and a spring. The spring is arranged in the inner cavity. One end of the spring abuts against the ceramic ferrule assembly, and the other end abuts against the tail of the inner shell.

8. The optical connector according to any one of claims 1 to 6, characterized in that: When the outer shell abuts against the head, the clamping block extends from the clamping port to the outer shell, and the clamping block abuts against the clamping port.

9. The optical connector according to claim 7, characterized in that: The inner side of the elastic arm is provided with an escape portion for escaping the spring.

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