An MPO fiber optic connector

Abstract

This utility model mainly relates to the field of fiber optic connectors, and more particularly to an MPO fiber optic connector. It includes: a sliding sleeve fitted onto an inner housing, with sliding sleeve slots provided at positions corresponding to the top and bottom surfaces of the inner housing; the sliding sleeve is used to engage with the inner housing to fix or unlock the MPO fiber optic connector onto an adapter; and a sliding tail sleeve, at least partially fitted onto the tail of the inner housing, with sliding tail sleeve blocks at positions corresponding to the top and bottom surfaces of the inner housing, engaging with the sliding sleeve slots; the sliding sleeve slots are configured to have axial clearance, and the sliding sleeve slots and sliding tail sleeve blocks are configured such that when the MPO fiber optic connector is inserted into the adapter, the sliding sleeve remains stationary when pushed backward by the adapter; and when the MPO fiber optic connector is fixed onto the adapter, pulling the sliding tail sleeve causes the sliding sleeve to move backward, thereby unlocking the MPO fiber optic connector from the adapter.

Description

Technical Field

[0001] This utility model mainly relates to the field of fiber optic connectors, and in particular to an MPO fiber optic connector. Background Technology

[0002] MPO fiber optic connectors are high-density multi-core fiber optic connectors suitable for data center server rooms and similar environments. Due to their high-density nature, devices are becoming increasingly compact. In traditional MPO fiber optic connectors, the sliding sleeve used for unlocking is located in the middle, which is the largest part of the entire MPO fiber optic connector. Therefore, when MPO fiber optic connectors are arranged closely together, they are not convenient for insertion and removal. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an MPO fiber optic connector, which is achieved through the following technical solution:

[0004] An MPO fiber optic connector comprising:

[0005] The inner housing includes a front inner housing and a rear inner housing, which together form an inner housing with a top and bottom surface wider than the two side surfaces. The front inner housing is configured to have an internal cavity for accommodating an MPO assembly, and has slots perpendicular to the axial direction on both sides. The rear inner housing has insertion walls on both sides, which are disposed on the tailstock of the rear inner housing. The outer side of the insertion wall has locking blocks that engage with the slots, and the rear inner housing is fixed to the front inner housing by the engagement of the slots and the locking blocks. Elastic element receiving cavities are provided on both sides of the inner housing.

[0006] A sliding sleeve is fitted onto the inner housing, and the sliding sleeve has sliding sleeve slots at positions corresponding to the top and bottom surfaces of the inner housing; the sliding sleeve is used to cooperate with the inner housing to fix the MPO fiber optic connector to the adapter or to unlock it;

[0007] An elastic element is disposed within the elastic element receiving cavity and is used to push the sliding sleeve to have a forward moving tendency;

[0008] A sliding tail sleeve, at least a portion of which is fitted onto the tail of the inner housing, has sliding tail sleeve locking blocks at positions corresponding to the top and bottom surfaces of the inner housing that engage with the sliding tail sleeve latch. The sliding tail sleeve latch is configured to have a margin in the axial direction. The sliding tail sleeve latch and the sliding tail sleeve locking blocks are configured such that when the MPO fiber optic connector is inserted into the adapter, the sliding tail sleeve remains stationary when pushed backward by the adapter. When the MPO fiber optic connector is fixed to the adapter, the MPO fiber optic connector is unlocked from the adapter by pulling the sliding tail sleeve to move it backward.

[0009] Preferably, the middle part of the card block on the insertion wall is further provided with a reinforcing rib extending along the axial direction.

[0010] Preferably, the top and bottom surfaces of the front inner housing and the rear inner housing are provided with protruding grooves and protruding blocks relative to the top and bottom surfaces, respectively.

[0011] Preferably, the protruding groove and the protruding block are disposed at the junction of the front inner shell and the rear inner shell, and the protruding groove and the protruding block are used to enhance the lateral pull performance.

[0012] Preferably, the tail end of the sliding tail sleeve has an optical fiber protective soft tail sleeve.

[0013] Preferably, the fiber optic protective soft tail sleeve and the sliding tail sleeve are integrally formed.

[0014] Preferably, the sliding sleeve latch is further provided with auxiliary notches extending to both sides. The auxiliary notches are used to increase the flexibility of the sliding sleeve, so that the sliding sleeve latch can smoothly fit into the sliding tail sleeve latch block.

[0015] The beneficial effects of this utility model are as follows:

[0016] The MPO fiber optic connector provided by this utility model can be unlocked from the adapter by pulling the sliding tail sleeve. At the same time, when the sliding sleeve moves backward on the MPO fiber optic connector, the sliding tail sleeve will not be linked with the sliding sleeve, so the sliding tail sleeve can be grasped for installation, which is simple and convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the disassembled structure of the inner shell.

[0018] Figure 2 This is a schematic diagram of the sliding sleeve structure;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the inner shell and the sliding tail sleeve.

[0020] Figure 4 This is a schematic diagram of the structure when a single sliding sleeve is subjected to force and retracts.

[0021] Figure 5 This is a schematic cross-sectional view of a single sliding sleeve under stress and retraction.

[0022] Figure 6 This is a schematic diagram of the structure when the sliding sleeve is pulled backward by the sliding tail sleeve.

[0023] Figure 7 This is a cross-sectional schematic diagram of the sliding sleeve being pulled backward by the sliding tail sleeve.

[0024] Figure 8 This is a schematic diagram of the connector in its natural state.

[0025] Figure 9 This is a cross-sectional structural diagram of the connector in its natural state. Detailed Implementation

[0026] The preferred mechanism and method of motion implementation of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 3As shown, an MPO fiber optic connector includes an inner housing 1, which is composed of a front inner housing 2 and a rear inner housing 3. The front inner housing 2 and the rear inner housing 3 form an inner housing 1 whose top and bottom surfaces are wider than the two side surfaces. The front inner housing 2 is generally rectangular and has a hollow interior cavity for accommodating MPO components such as fiber arrays, supports, and PIN pin springs. A bayonet 4 perpendicular to the axial direction is provided on both sides of the front inner housing 2. The rear inner housing 3 has insertion walls 5 on both sides, which are mounted on the tailstock 6 of the rear inner housing 3. A locking block 7 that mates with the bayonet 4 is provided on the outer side of the insertion wall 5. The insertion wall 5 is inserted into the interior of the front inner housing 2, corresponding to the positions on the side surfaces. The bayonet 4 and the locking block 7 engage to fix the rear inner housing 3 onto the front inner housing 2, thereby closing the tail. Elastic element receiving cavities 8 are provided on both sides of the inner housing 1. Locking slots 9 that mate with the claws of the adapter are provided on both sides of the front inner housing 2. To further enhance the strength of the locking block 7, a reinforcing rib 10 extending axially is provided in the middle of the locking block 7, and a corresponding clearance opening 11 is provided at the corresponding position of the front inner shell 2. The reinforcing rib 10 enhances the structural strength of the locking block 7 and increases the tensile strength of the inner shell 1. The top and bottom surfaces of both the front inner shell 2 and the rear inner shell 3 are provided with protruding grooves 12 and protruding blocks 13 relative to the top and bottom surfaces, respectively. The protruding grooves 12 and protruding blocks 13 are located at the junction of the front inner shell 2 and the rear inner shell 3, and are used to enhance lateral tensile performance. That is, when the rear inner shell 3 is subjected to lateral tensile force, especially lateral tensile force along the directions of the two insertion walls 5, the wider and thicker protruding grooves 12 and protruding blocks 13 bear part of the lateral tensile force, thereby reducing the tensile force on the insertion walls 5. In addition, reinforcing blocks 22 are provided on both sides of the position where the insertion wall 5 meets the tailstock 6. The reinforcing blocks are used to increase the structural strength of the insertion wall 5 on the top and bottom surfaces.

[0028] The sliding sleeve 14 is fitted onto the inner housing 1, and sliding sleeve slots 15 are provided on the sliding sleeve 14 at positions corresponding to the top and bottom surfaces of the inner housing 1. The sliding sleeve 14 is used to cooperate with the inner housing 1 to fix or unlock the MPO fiber optic connector to the adapter.

[0029] The elastic element 16 is disposed within the elastic element receiving cavity 8 and is used to push the sliding sleeve 14 to have a forward movement tendency. The elastic element 16 is generally a spring, one end of which abuts against the step of the tailstock 6 or the front inner housing 2, and the other end abuts against the inner step of the sliding sleeve 14, thereby providing the sliding sleeve 14 with a forward movement tendency.

[0030] At least a portion of the sliding tail sleeve 17 is fitted onto the tail of the inner housing 1. Sliding tail sleeve 17 has corresponding sliding tail sleeve blocks 18 that mate with the sliding tail sleeve slot 15 at positions corresponding to the top and bottom surfaces of the inner housing 1. The sliding tail sleeve slot 15 is configured to have a margin in the axial direction, meaning its length in the axial direction is greater than the length of the sliding tail sleeve block 18. Specifically, the sliding tail sleeve slot 15 and the sliding tail sleeve block 18 are configured as follows: Figure 4 and Figure 5 As shown, when the MPO fiber optic connector is inserted into the adapter, the sliding sleeve 14 is pushed backward by the adapter, while the sliding tail sleeve 17 remains stationary. Figure 6 and Figure 7 As shown, when the MPO fiber optic connector is fixed to the adapter, the sliding sleeve 14 is moved backward by pulling the sliding tail sleeve 17, thereby unlocking the MPO fiber optic connector from the adapter. Figure 8 and Figure 9 This is the connector's natural state.

[0031] To facilitate assembly, the sliding sleeve latch 15 is also provided with auxiliary notches 19 extending to both sides. The auxiliary notches 19 are used to increase the flexibility of the sliding sleeve 14, especially the flexibility of the portion 20 of the sliding sleeve 14 in the insertion direction of the sliding tail sleeve latch 18, so that the sliding sleeve latch can smoothly fit into the sliding tail sleeve latch. At the same time, the tail end of the sliding tail sleeve 17 has an optical fiber protective soft tail sleeve 21, and the optical fiber protective soft tail sleeve 21 and the sliding tail sleeve 17 are integrally formed.

Claims

1. An MPO fiber optic connector, characterized in that... include: The inner housing includes a front inner housing and a rear inner housing, which together form an inner housing with a top and bottom surface wider than the two side surfaces. The front inner housing is configured to have an internal cavity for accommodating an MPO assembly, and has bayonets perpendicular to the axial direction on both sides. The rear inner housing has insertion walls on both sides, which are disposed on the tailstock of the rear inner housing. The outer side of the insertion wall has a locking block that engages with the bayonets, and the rear inner housing is fixed to the front inner housing by the engagement of the bayonets and the locking blocks. The inner housing has elastic element receiving cavities on both sides. A sliding sleeve is fitted onto the inner housing, and the sliding sleeve has sliding sleeve slots at positions corresponding to the top and bottom surfaces of the inner housing; the sliding sleeve is used to cooperate with the inner housing to fix the MPO fiber optic connector to the adapter or to unlock it; An elastic element is disposed within the elastic element receiving cavity and is used to push the sliding sleeve to have a forward moving tendency; A sliding tail sleeve, at least a portion of which is fitted onto the tail of the inner housing, has sliding tail sleeve locking blocks at positions corresponding to the top and bottom surfaces of the inner housing that engage with the sliding tail sleeve latch. The sliding tail sleeve latch is configured to have a margin in the axial direction. The sliding tail sleeve latch and the sliding tail sleeve locking blocks are configured such that when the MPO fiber optic connector is inserted into the adapter, the sliding tail sleeve remains stationary when pushed backward by the adapter. When the MPO fiber optic connector is fixed to the adapter, the MPO fiber optic connector is unlocked from the adapter by pulling the sliding tail sleeve to move it backward.

2. The MPO fiber optic connector according to claim 1, characterized in that: The middle part of the card block on the insertion wall is also provided with a reinforcing rib extending along the axial direction.

3. The MPO fiber optic connector according to claim 1, characterized in that: The top and bottom surfaces of both the front inner housing and the rear inner housing are provided with protruding grooves and protruding blocks relative to the top and bottom surfaces, respectively.

4. The MPO fiber optic connector according to claim 3, characterized in that: The protruding groove and the protruding block are disposed at the junction of the front inner shell and the rear inner shell, and the protruding groove and the protruding block are used to enhance the lateral pull performance.

5. The MPO fiber optic connector according to claim 1, characterized in that: The tail end of the sliding tail sleeve has an optical fiber protective soft tail sleeve.

6. The MPO fiber optic connector according to claim 5, characterized in that: The fiber optic protective soft tail sleeve and the sliding tail sleeve are integrally formed.

7. The MPO fiber optic connector according to any one of claims 1 to 6, characterized in that: The sliding sleeve latch is also provided with auxiliary notches extending to both sides. The auxiliary notches are used to increase the flexibility of the sliding sleeve, so that the sliding sleeve latch can smoothly fit into the sliding tail sleeve latch block.

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