Connection structure of in-band branch multi-core connector for MPO or MTP

Abstract

The utility model relates to the technical field of optical fiber connection, in particular to a connecting structure of an in-band branch multi-core connector for an MPO or MTP, which comprises a connecting seat arranged at the tail end of the MPO or MTP, a channel for a plurality of optical fibers to pass through is arranged in the connecting seat, and the tail end of the connecting seat is of an opening structure allowing the plurality of optical fibers to pass through the connecting seat; a stepped hole is formed in the multi-core connector with the inner branch, a first hole in the front end of the stepped hole is used for being connected with the connecting base in a matched mode, a second hole in the rear end of the stepped hole is used for containing wrapping sleeves of two or more secondary cables, and the front end of each wrapping sleeve of the secondary cables abuts against the tail end of the connecting base. The plurality of optical fibers are divided into two or more than two secondary cables in the connector. The utility model has the advantages that the design of a main cable and a branch protective sleeve is omitted, the volume and the weight of the whole cable are reduced, the requirement of high-density wiring is better met, the occupied area of the cable is reduced, and the wiring flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber connection technology, specifically a connection structure for an in-band branch multi-core connector for MPO or MTP. Background Technology

[0002] In the field of optical communication, optical cables and their connection technologies play a crucial role. In particular, MPO (Multi-fiber Push-On) connectors and MTP (Multi-fiber Termination Push-on) connectors, with their unique structural designs, provide effective solutions for high-density fiber optic cabling. This series of products mainly consists of multi-core connectors. Their working principle involves branching a main optical cable through a branch protective sleeve, thus leading out two or more optical cables. The other ends of these branch cables are connected to corresponding connectors to achieve connections with other devices or networks.

[0003] However, existing multi-core connector technology has some significant drawbacks. First, the large number of parts in the entire cable increases both assembly complexity and production costs. Second, the large number of parts results in relatively large connector size and weight, which is particularly problematic in space-constrained high-density cabling cabinets. As applications such as data centers and cloud computing demand increasingly higher fiber optic cabling densities, these shortcomings become more pronounced, limiting cabling flexibility and increasing the difficulty of maintenance and management.

[0004] Therefore, there is an urgent need to design a connection structure for in-band branch multi-core connectors for MPO or MTP to reduce the overall size and weight of the cable, making cabling operations in the cabinet more flexible and convenient, better adapting to the needs of high-density cabling, reducing the floor space occupied by the cable, and improving the flexibility of cabling. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connection structure for an in-band branch multi-core connector for MPO or MTP, so as to reduce the volume and weight of the entire cable, making cabling operations in the cabinet more flexible and convenient, better adapting to the needs of high-density cabling, reducing the floor space occupied by the cable, and improving the flexibility of cabling.

[0006] To achieve the above objectives, a connection structure for an in-band branched multi-core connector for MPO or MTP is designed, comprising: a connector base disposed at the tail end of the MPO or MTP, the connector base having a channel for multiple optical fibers to pass through inside, and the tail end of the connector base having an open structure to allow multiple optical fibers to pass out of the connector base; an in-band branched multi-core connector having a stepped hole inside, wherein a first hole at the front end of the stepped hole is used to mate with the connector base, and a second hole at the rear end of the stepped hole is used to accommodate a sheath of two or more secondary cables, and the front end of the secondary cable sheath abuts against the tail end of the connector base, wherein the multiple optical fibers are divided into two or more secondary cables within the connector.

[0007] Preferably, the present invention further includes: the outer periphery of the connecting seat has a stepped structure, and the stepped structure of the connecting seat includes: a first tread surface with an incline, a second tread surface with a groove, and a kick surface.

[0008] Preferably, the present invention further includes: a locking block structure is provided on the circumferential side of the inner wall of the first hole, and the locking block structure cooperates with the groove of the connecting seat step structure.

[0009] Preferably, the present invention further includes: the rear end of the connector is sleeved in the second hole of the multi-core connector and a gap is left to form a cavity.

[0010] Preferably, the present invention further includes: a protective sleeve is provided at the rear of the second hole of the multi-core connector, and the protective sleeve is provided with a through hole for accommodating the secondary cable.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] Eliminating the main cable and branch protection sleeves significantly reduces the overall size and weight of the cable. This improvement makes cabling operations in server racks more flexible and convenient. In traditional fiber optic cabling solutions, the main cable and branch protection sleeves not only increase the overall size and weight of the cable but also limit cabling flexibility. Especially in high-density cabling racks where space is very limited, traditional cabling methods can lead to difficulties in cable management, increasing cabling complexity and time costs.

[0013] By eliminating the need for main cables and branch protection sleeves, the new design better accommodates the demands of high-density cabling. It not only reduces the cabling footprint but also increases cabling flexibility, making it easier for technicians to perform cabling work within server racks. This design is particularly suitable for applications such as data centers and cloud computing, which have extremely high requirements for fiber optic cabling density and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a multi-core connector in the prior art;

[0015] Figure 2 This is a partial cross-sectional schematic diagram of the branch protection sleeve of a multi-core connector in the prior art;

[0016] Figure 3 This is a structural schematic diagram of the present invention;

[0017] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0018] In the diagram: 1 Existing multi-core connector, 1.1 Existing main cable, 1.2 Branch protective sleeve, 1.3 Existing secondary cable, 2 MPO or MTP, 2.1 Connector, 2.2 First tread, 2.3 Second tread, 2.4 Kick, 2.5 Groove, 3 Multi-core connector with internal branch, 3.1 First hole, 3.2 Second hole, 3.3 Locking block, 3.4 Protective sleeve, 4 Secondary cable, 4.1 Secondary cable sheath, 4.2 Optical fiber. Detailed Implementation

[0019] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0020] See Figure 1 , 2 In existing technology, a multi-core connector 1 leads a main cable 1.1 from an MPO or MTP cable, and then the optical fibers in the main cable 1.1 are connected by branch patch cords to form multiple secondary cables 1.3. A branch protective sleeve 1.2 is fitted at the patch cord connection between the secondary cable 1.3 and the main cable 1.1, and glue is filled inside the branch protective sleeve 1.2 for fixation, thereby reinforcing and protecting the easily damaged and broken branch patch cord connection. However, in today's environment where the demand for high-density cabling cabinets is gradually increasing, this connection structure is showing problems such as a large number of components, cumbersome structure, and large space occupation in the cabinet.

[0021] Therefore, this utility model provides a connection structure for an in-band branch multi-core connector for MPO or MTP, including: MPO or MTP, a connector 2.1 disposed at the tail end of MPO or MTP, and an in-band branch multi-core connector 3 connected to the rear end of the connector 2.1.

[0022] The multi-core connector 3 with internal branching has a stepped hole running through it from front to back. The front end of the stepped hole is a first hole 3.1, and the rear end is a second hole 3.2. A retaining block 3.3 is provided on the circumferential side of the first hole 3.1. The second hole 3.2 contains a secondary cable sheath 4.3 for multiple optical fibers 4.2 and secondary cables 4. The tail end of the connector 2.1 is fitted into the first hole 3.1, leaving a gap to form a cavity, and the front end of the secondary cable sheath 4.3 abuts against the tail end of the connector 2.1.

[0023] The outer circumferential wall of the connector 2.1 has a stepped structure, and the connector 2.1 has a through opening that accommodates several unwrapped optical fibers 4.2 from the secondary cable 4. The stepped mechanism of the connector 2.1 specifically includes a first tread 2.2, a kick surface 2.4, and a second tread 2.3. The first tread 2.2 is higher than the second tread 2.3 and is an inclined surface. The second tread 2.3 has a groove 2.5 along its circumferential direction. The groove 2.5 cooperates with the locking block 3.3 in the first hole 3.1 of the multi-core connector 3 with internal branching, achieving a connection between the connector 2.1 and the multi-core connector 3 with internal branching.

[0024] The rear end of the connector 2.1 is also provided with a protective sleeve 3.4, and the protective sleeve 3.4 has a channel for accommodating the secondary cable wrapping section 4.1.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A connection structure for an in-band branch multi-core connector for MPO or MTP, characterized in that, include: The connector is located at the end of the MPO or MTP. The connector has a channel inside for multiple optical fibers to pass through, and the end of the connector has an open structure to allow multiple optical fibers to pass out of the connector. The multi-core connector with internal branches has a stepped hole inside. The first hole at the front end of the stepped hole is used to connect to the connector seat, and the second hole at the rear end of the stepped hole is used to accommodate the sheath of two or more secondary cables. The front end of the secondary cable sheath abuts against the tail end of the connector seat. The multiple optical fibers are divided into two or more secondary cables inside the connector.

2. The connection structure for an in-band branch multi-core connector for MPO or MTP as described in claim 1, characterized in that, The outer periphery of the connecting seat has a stepped structure, which includes a first tread with an incline, a second tread with a groove, and a kick surface.

3. The connection structure for an in-band branch multi-core connector for MPO or MTP as described in claim 2, characterized in that, The inner wall of the first hole is provided with a locking block structure along its circumferential side, and the locking block structure cooperates with the groove of the connecting seat step structure.

4. The connection structure for an in-band branch multi-core connector for MPO or MTP as described in claim 1, characterized in that, The rear end of the connector is fitted into the second hole of the multi-core connector with a gap to form a cavity.

5. The connection structure for an in-band branch multi-core connector for MPO or MTP as described in claim 1, characterized in that, The second hole of the multi-core connector is also provided with a protective sleeve, and the protective sleeve has a through hole for accommodating the secondary cable.

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