A dustproof and anti-shaking MPO fiber connector structure of a dustproof and anti-shaking MPO adapter structure

By introducing a combination of a rotatable dustproof plate and a dustproof spring plate into the fiber optic adapter, the problem of insufficient dust protection in high-dust environments is solved, effectively protecting the fiber optic interface and improving the stability and reliability of signal transmission.

CN224682433UActive Publication Date: 2026-08-25ZHEJIANG ORYARWA COMMUNICATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202521949448.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-08-25
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

Existing fiber optic adapters lack effective dust protection in high-dust environments, leading to optical interface contamination and signal attenuation.

Method used

A dustproof and anti-shake MPO adapter structure was designed, which uses a combination of a rotatable dustproof sheet and a dustproof spring sheet to form an automatically rebounding closed barrier. Combined with the anti-shake spring sheet stabilizing connector, it prevents dust from entering.

Benefits of technology

It effectively blocks dust and oil, ensuring the long-term cleanliness of the fiber optic interface and improving the stability and reliability of optical signal transmission.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to optical fiber adapter technical field, concretely is a kind of dustproof anti-shaking MPO adapter structure's MPO fiber optic connector, including adapter main body and adapter shell, rotatable dustproof sheet is provided in adapter main body inside, the quantity is two and symmetrically distributed on the upper and lower sides of adapter main body inner cavity;Dustproof spring sheet is connected with dustproof sheet, provide the elastic force of making dustproof sheet close;Adapter shell outside is provided with anti-shaking spring leaf, with parallel protruding elastic crimping part.The utility model is through the double dustproof sheet structure of built-in automatic rebound, solved the dustproof means missing problem existing in the scheme of present open adapter or simple dustproof cover;Two symmetrically distributed dustproof sheets always maintain closed state under the elastic force of dustproof spring sheet, form a closed inner cavity initiative dustproof barrier, effectively block dust and other pollutants from port invasion, ensure that the long-term cleaning of fiber optic interface, prevent built-in light source from leaking and hurting eye.
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Description

Technical Field

[0001] This utility model relates to the field of fiber optic adapter technology, and in particular to an MPO fiber optic connector with a dustproof and vibration-proof MPO adapter structure. Background Technology

[0002] In fiber optic communication systems, fiber optic adapters are crucial components for achieving precise fiber optic connector mating, and their performance directly impacts the stability and reliability of optical signal transmission. With the widespread adoption of high-density fiber optic cabling, adapters are constantly exposed to complex operating conditions, and dust intrusion has become one of the main factors leading to optical interface contamination, increased insertion loss, and signal attenuation.

[0003] Existing adapters are mostly open-structured or use only simple dust cover designs. The dust cover is easy to lose and cannot provide protection during plugging and unplugging, resulting in serious reliability issues in high-dust environments such as industrial and data centers. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure to solve the problem that existing fiber optic adapters lack effective dustproof protection.

[0005] To achieve the above objectives, this utility model provides an MPO fiber optic connector with a dustproof and anti-shaking MPO adapter structure, including an adapter body and an adapter housing. The adapter body has two rotatable dustproof sheets inside, which are symmetrically distributed on the upper and lower sides of the inner cavity of the adapter body.

[0006] The dustproof sheet is connected to a dustproof spring sheet, which provides an elastic force to close the dustproof sheet;

[0007] The adapter housing has an anti-shake spring on its outer side, and the anti-shake spring has a parallel protruding elastic pressing part.

[0008] In some alternative embodiments, the adapter body has U-shaped grooves on both sides, and the dustproof sheet has cylinders on both sides that rotate with the U-shaped grooves;

[0009] The adapter body is provided with a hook, and the adapter housing is provided with a side hole, and the hook engages and is fixed with the side hole;

[0010] The inner wall of the adapter housing is pressed against the end of the dustproof sheet, confining the cylinder of the dustproof sheet within the U-shaped groove of the adapter body.

[0011] In some alternative embodiments, the dustproof spring sheet has an R-shaped structure, comprising:

[0012] The circular hole provided on the flat part fits onto the circular protrusion provided on the surface of the dustproof sheet;

[0013] The C-shaped bend makes elastic contact with the cylindrical part of the dustproof sheet;

[0014] The U-shaped end is inserted into the square hole of the dustproof sheet.

[0015] In some alternative embodiments, the dustproof sheet has a V-shaped clearance groove in the middle.

[0016] In some alternative embodiments, the anti-sway spring includes two parallel U-shaped elastic arms, and the elastic pressing part is a planar protrusion at the top of the U-shaped elastic arm.

[0017] In some optional embodiments, the adapter body has a polarity marking groove on its outer side, and the adapter housing has A polarity marking and B polarity marking on its two sides respectively;

[0018] When the polarity marking slot is aligned with the A polarity marking, the adapter is polarity A; when it is aligned with the B polarity marking, the adapter is polarity B.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides an MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure. By incorporating a built-in double dustproof sheet structure that can automatically rebound, it solves the problem of lack of dustproof measures in existing open adapters or simple dustproof cover solutions. The two symmetrically distributed dustproof sheets are always kept closed under the elastic force of the dustproof spring sheet, forming an active dustproof barrier with a closed inner cavity, effectively preventing dust, oil and other contaminants from entering from the port, and ensuring the long-term cleanliness of the fiber optic interface. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the connector and adapter structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the adapter of this utility model;

[0024] Figure 3 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0025] Figure 4 This is a schematic diagram of the dustproof spring sheet structure described in this utility model;

[0026] Figure 5 This is a first-view structural diagram of the dustproof sheet described in this utility model;

[0027] Figure 6 This is a schematic diagram of the installation structure of the dustproof sheet and dustproof spring sheet of this utility model;

[0028] Figure 7 This is a second-view structural diagram of the dustproof sheet described in this utility model;

[0029] Figure 8 This is a schematic diagram of the adapter part of this utility model;

[0030] Figure 9 This is a schematic diagram of the adapter housing structure of this utility model.

[0031] The diagram is marked as follows:

[0032] 1. Adapter body; 101. U-shaped groove; 102. Hook; 103. Marking groove; 2. Adapter housing; 201. Side hole; 202. A polarity mark; 203. B polarity mark; 3. Dustproof sheet; 301. Cylindrical; 302. Square hole; 303. V-shaped clearance groove; 304. Circular protrusion; 4. Dustproof spring sheet; 401. Circular hole; 402. C-shaped bend; 403. U-shaped end; 5. Anti-sway spring sheet; 501. U-shaped elastic arm; 502. Flat protrusion; 6. Connector. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] Please see Figures 1 to 9 As an embodiment of this utility model, an MPO fiber optic connector with a dustproof and anti-shaking MPO adapter structure includes an adapter body 1 and an adapter housing 2. The adapter body 1 is provided with a rotatable dustproof sheet 3 inside. There are two dustproof sheets 3, which are symmetrically distributed on the upper and lower sides of the inner cavity of the adapter body 1.

[0036] The dustproof sheet 3 is connected to a dustproof spring sheet 4, which provides the elastic force to close the dustproof sheet 3;

[0037] An anti-shake spring 5 is provided on the outer side of the adapter housing 2. The anti-shake spring 5 has parallel protruding elastic pressing parts.

[0038] In this embodiment, when the adapter is not connected to the fiber optic connector:

[0039] The two dustproof plates 3 rotate and close around the cylinder 301 under the elastic force of the dustproof spring plate 4; the edges of the V-shaped relief groove 303 of the dustproof plate 3 fit tightly together to form a dustproof barrier that closes the inner cavity.

[0040] When the MPO fiber optic connector 6 is inserted into the port of the adapter housing 2, the plug end face of the connector 6 pushes the inclined surface of the V-shaped relief groove 303 of the dustproof plate 3, causing the dustproof plate 3 to rotate and open around the cylinder 301 as the axis; the C-shaped bend 402 of the dustproof spring plate 4 is compressed and stored; at this time, the connector 6 plug is precisely connected to the fiber optic interface inside the adapter body 1.

[0041] The adapter body 1 is mounted on the adapter mounting panel via anti-sway springs 5. The two U-shaped elastic arms 501 of the anti-sway springs 5 ​​generate radial elastic deformation; the elastic pressing force generated by the planar protrusions 502 is pressed tightly against the inner wall of the mounting hole of the adapter panel, suppressing displacement caused by working vibration.

[0042] After the fiber optic connector 6 is pulled out, the dustproof spring 4 releases energy to drive the dustproof sheet 3 to spring back and close.

[0043] When the device is not in use for an extended period, press the dust cap into port 2 of the adapter housing to block external dust.

[0044] Optionally, the adapter body 1 has U-shaped grooves 101 on both sides, and the dustproof sheet 3 has cylinders 301 on both sides that rotate with the U-shaped grooves 101; the dustproof sheet 3 can rotate with the U-shaped grooves 101 as the center.

[0045] The adapter body 1 is provided with a hook 102, and the adapter housing 2 is provided with a side hole 201; align the hook 102 of the adapter body 1 with the side hole 201 of the adapter housing 2, apply axial pressure to make the hook 102 elastically deform and then snap into the side hole 201, so that the hook 102 and the side hole 201 are engaged and fixed.

[0046] The inner wall of the adapter housing 2 is pressed against the end of the dustproof sheet 3, confining the cylinder 301 of the dustproof sheet 3 within the U-shaped groove 101 of the adapter body 1.

[0047] Optionally, the dustproof spring sheet 4 has an R-shaped structure, including:

[0048] The circular hole 401 provided on the flat part is fitted onto the circular protrusion 304 provided on the surface of the dustproof sheet 3 to form a fixing base point;

[0049] The C-shaped bend 402 elastically abuts against the cylinder 301 of the dustproof sheet 3;

[0050] The U-shaped end 403 is inserted into the square hole 302 of the dustproof sheet 3;

[0051] When the dust cover 3 is closed, the C-shaped bend 402 is in a freely extended state; when the dust cover 3 is opened, the external force pushes the dust cover 3 to rotate, and the C-shaped bend 402 is compressed and deformed to start storing energy; when the dust cover 3 rebounds after the connector 6 is pulled out, the C-shaped bend 402 releases the stored energy, pushes the cylinder 301 to rotate in the opposite direction, and closes the edge of the dust cover 3.

[0052] Optionally, the dustproof sheet 3 has a V-shaped clearance groove 303 in the middle to prevent the dustproof sheet from colliding with the connector core 6 when the fiber optic connector 6 is inserted.

[0053] Optionally, the anti-sway spring 5 includes two parallel U-shaped elastic arms 501, and the elastic pressing part is a flat protrusion 502 on the top of the U-shaped elastic arm 501.

[0054] When the adapter body 1 is assembled onto the adapter mounting panel, the planar protrusion 502 forms an elastic tight fit structure with the adapter mounting panel to prevent the adapter from shaking after installation. Specifically, the planar protrusion 502 of the two U-shaped elastic arms 501 are interference-fitted to the inner wall of the mounting hole of the adapter mounting panel, the U-shaped elastic arms 501 generate radial elastic deformation, the deformation stores energy, and the planar protrusion 502 forms a surface contact with the inner wall of the adapter mounting panel.

[0055] Optionally, the adapter body 1 has a polarity marking groove 103 on the outside, and the adapter housing 2 has an A polarity marking 202 and a B polarity marking 203 on both sides respectively.

[0056] When the polarity marking slot 103 is in the same direction as the A polarity marking 202, the adapter is of polarity A; when it is in the same direction as the B polarity marking 203, the adapter is of polarity B.

[0057] When assembling the adapter, the polarity marking groove 103 of the adapter body 1 is aligned with the A polarity marking 202 of the adapter housing 2 and then pressed together. At this time, the triangular groove of the polarity marking groove 103 and the A polarity marking 202 are in the same axial plane, and the adapter polarity is A polarity. Conversely, the polarity marking groove 103 of the adapter body 1 is aligned with the B polarity marking 203 of the adapter housing 2 and then pressed together. At this time, the triangular groove of the polarity marking groove 103 and the B polarity marking 203 are in the same axial plane, and the adapter polarity is B polarity.

[0058] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0059] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An MPO fiber optic connector with a dustproof and vibration-proof MPO adapter structure, comprising an adapter body (1) and an adapter housing (2), characterized in that: The adapter body (1) is provided with a rotatable dustproof sheet (3) inside. There are two dustproof sheets (3) and they are symmetrically distributed on the upper and lower sides of the inner cavity of the adapter body (1). The dustproof sheet (3) is connected to a dustproof spring sheet (4), which provides an elastic force to close the dustproof sheet (3); The adapter housing (2) is provided with an anti-shake spring (5) on the outside, and the anti-shake spring (5) has a parallel protruding elastic pressing part.

2. The MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure according to claim 1, characterized in that, The adapter body (1) has U-shaped grooves (101) on both sides, and the dustproof sheet (3) has cylinders (301) on both sides that rotate with the U-shaped grooves (101); The adapter body (1) is provided with a hook (102), and the adapter outer shell (2) is provided with a side hole (201). The hook (102) is engaged and fixed with the side hole (201). The inner wall of the adapter housing (2) is pressed against the end of the dustproof sheet (3), confining the cylinder (301) of the dustproof sheet (3) within the U-shaped groove (101) of the adapter body (1).

3. The MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure according to claim 1, characterized in that: The dustproof spring sheet (4) has an R-shaped structure, including: The circular hole (401) provided on the flat part is fitted onto the circular protrusion (304) provided on the surface of the dustproof sheet (3); The C-shaped bend (402) elastically abuts against the cylinder (301) of the dustproof sheet (3); The U-shaped end (403) is inserted into the square hole (302) of the dustproof sheet (3).

4. The MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure according to claim 1, characterized in that: The dustproof sheet (3) has a V-shaped clearance groove (303) in the middle.

5. The MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure according to claim 1, characterized in that: The anti-sway spring (5) includes two parallel U-shaped elastic arms (501), and the elastic pressing part is a planar protrusion (502) on the top of the U-shaped elastic arm (501).

6. The MPO fiber optic connector with a dustproof and anti-shake MPO adapter structure according to claim 1, characterized in that: The adapter body (1) has a polarity marking groove (103) on the outside, and the adapter outer shell (2) has an A polarity marking (202) and a B polarity marking (203) on both sides respectively; When the polarity marking slot (103) is in the same direction as the A polarity marking (202), the adapter is A polarity; when it is in the same direction as the B polarity marking (203), the adapter is B polarity.