A high-efficiency lightning-protected fiber optic transceiver

Abstract

This utility model relates to the field of fiber optic transceiver technology, specifically a high-efficiency lightning-protected fiber optic transceiver. It includes multiple optical end holes evenly distributed on one side of the transceiver body. A conductive metal sleeve is installed on the outside of each optical end hole. A metal contact ring is elastically connected to the outer end of the conductive metal sleeve via a metal spring ring. The metal contact ring extends to the outer end of the optical end hole, ensuring that the fiber optic adapter end wall contacts the metal contact ring first before the optical end holes align. This forms a preferential low-resistance grounding discharge path through the fiber optic adapter, metal contact ring, metal spring ring, conductive metal sleeve, grounding wire, and grounding device. This utility model's structure can preferentially establish a reliable grounding discharge path before the optical end face contacts, significantly reducing the probability of damage to the transceiver's internal circuitry during lightning strikes or external potential increases. It has advantages such as simple structure, high reliability, and ease of implementation.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic transceiver technology, specifically a high-efficiency lightning-proof fiber optic transceiver. Background Technology

[0002] Existing fiber optic adapters are often made of plastic or metal, and standard adapters only focus on optical alignment and mechanical protection during insertion and removal.

[0003] For armored or metal-sheathed optical cables, the outer sheath may carry a high voltage when subjected to lightning strikes or external potential rises. This potential can couple into the equipment through the plug sleeve or contacts, causing a potential difference between the casing and internal circuitry and damaging sensitive electronic components. Current technology lacks a mechanical structure design that prioritizes establishing a reliable grounding discharge path before optical end-face contact.

[0004] To address this, this technical solution designs a high-efficiency lightning-proof fiber optic transceiver. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency lightning-proof fiber optic transceiver to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency lightning-protected fiber optic transceiver includes multiple optical end holes evenly distributed on one side of the transceiver body. A conductive metal sleeve is installed on the outside of the optical end holes. A metal contact ring is elastically connected to the outer end of the conductive metal sleeve via a metal spring ring. The bottom of each set of conductive metal sleeves is connected to a grounding device located at the bottom of the transceiver body via a grounding wire. At the same time, the end of the fiber optic plug that is inserted into the optical end hole is connected to the fiber optic cable via a fiber optic adapter. The bottom of the fiber optic adapter is clamped, supported and positioned by an adapter mounting base. The metal contact ring is located at the outer end of the optical end hole. When the fiber optic plug is inserted into the optical end hole, the end wall of the fiber optic adapter is in pre-contact with the metal contact ring. At this time, the connection of the fiber optic adapter, the metal contact ring, the metal spring ring and the conductive metal sleeve is used to transmit the high voltage current that may be carried in the fiber optic adapter to the grounding wire, and then the transmission is neutralized by the grounding device at one end of the grounding wire, thereby reducing the voltage hazard during connection.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] By setting a conductive metal sleeve, a metal spring ring, and a metal contact ring outside the optical end hole, and prioritizing grounding this metal structure to the grounding device at the bottom of the fiber optic transceiver, a low-resistance grounding discharge path is structurally ensured before the fiber optic plug contacts the optical end face of the optical end hole. This effectively discharges the high potential brought in by the armored or metal-sheathed optical cable to the ground, reducing the risk of high voltage entering the equipment through the plug and damaging sensitive electronic components or generating internal arcs.

[0010] By adopting the elastic contact design of the metal spring ring, the metal contact ring makes contact with the end wall of the fiber optic adapter at the initial stage of the insertion action, which ensures the sequence of actions and can achieve the protection effect of "grounding first, then optical connection". Attached Figure Description

[0011] Figure 1 This is a schematic diagram showing the connection distribution of a high-efficiency lightning-protected fiber optic transceiver and fiber optic adapter.

[0012] Figure 2 This is a schematic diagram of the fiber optic adapter in a high-efficiency lightning-proof fiber optic transceiver.

[0013] Figure 3 for Figure 1 A magnified structural diagram of A in the diagram.

[0014] The components include: fiber optic transceiver body 10, fiber optic cable 11, fiber optic adapter 12, adapter mounting base 13, metal spring ring 14, fiber optic plug 15, insulating positioning sleeve 16, conductive metal sleeve 17, grounding wire 18, optical end hole 19, and metal contact ring 20. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Please see Figures 1-3 A high-efficiency lightning-protected fiber optic transceiver includes multiple optical end holes 19 evenly distributed on one side of the fiber optic transceiver body 10. A conductive metal sleeve 17 is installed on the outside of each optical end hole 19. A metal contact ring 20 is elastically connected to the outer end of the conductive metal sleeve 17 via a metal spring ring 14. Each set of conductive metal sleeves 17 is connected, with its bottom facing downwards, to a grounding device located at the bottom of the fiber optic transceiver body 10 via a grounding wire 18. Simultaneously, a fiber optic plug 15, which is inserted and connected to the optical end holes 19, has its end furthest from the optical end holes 19 connected to an optical fiber 11 via a fiber optic adapter 12. The bottom of the fiber optic adapter 12 is clamped and supported by the adapter mounting base 13. The metal contact ring 20 is located at the outer end of the optical end hole 19. When the fiber optic plug 15 is inserted into the optical end hole 19, the end wall of the fiber optic adapter 12 is in contact with the metal contact ring 20 in advance. At this time, the high voltage current that may be carried in the fiber optic adapter 12 is transmitted to the grounding wire 18 through the connection of the fiber optic adapter 12, the metal contact ring 20, the metal spring ring 14, and the conductive metal sleeve 17. Then, the current is transmitted and neutralized through the grounding device at one end of the grounding wire 18, thereby reducing the voltage hazards during connection.

[0020] The free extension and position of the metal spring ring 14 are designed so that before the optical fiber plug 15 completes the connection of the optical end hole 19, the conductive metal sleeve 17 or its spring part first contacts the grounding wire 18 and forms a low-resistance grounding path.

[0021] The metal spring ring 14 is made of phosphor bronze, with a free length of approximately 3.0 mm, a pre-extension of approximately 1.5 mm, a compression stroke of approximately 1.0–2.0 mm, and a contact force of approximately 0.3–1.0 N.

[0022] The conductive metal sleeve 17 is made of nickel-plated brass with a thickness of approximately 0.5–1.0 μm.

[0023] In this embodiment of the invention, the grounding device is also a grounding discharge base. When a high potential appears in the conductive metal sleeve 17 and the adapter mounting base 13, the energy / charge is preferentially introduced into the bottom of the fiber optic transceiver body 10 and safely discharged through the grounding wire, so as to avoid the voltage from entering the device through the plug and damaging the electronic circuit or generating an internal electric arc.

[0024] Specifically, the metal mounting base (grounding bus) is a sturdy metal plate or copper / tin-plated rail fixed to the bottom of the fiber optic transceiver body 10, which serves as a grounding junction point and is connected to the single-point grounding of the chassis.

[0025] Surge discharge elements, such as gas discharge tubes (GDTs), metal oxide surge arresters (MOVs), or surge suppressors, are arranged in parallel or series at the grounding point.

[0026] Use insulating pads, creepage channels, and waterproof seals at the points of isolation from internal circuitry (for outdoor equipment);

[0027] Once the outer casing potential rises, the current preferentially flows through this short, thick, low-resistance path to the bottom ground bus and then through the casing to the ground grid or ground stake. If the voltage exceeds the preset trigger value, the discharge element (such as GDT) absorbs energy and limits the residual voltage. The module controls the high-energy discharge close to the casing to prevent electric arcs or high voltages from crossing into sensitive nodes inside the equipment.

[0028] The above is only a brief description of the grounding device. For details, please refer to the existing related technologies. It will not be elaborated here.

[0029] In one embodiment of the present invention, an insulating positioning sleeve 16 is provided on the inner side of the conductive metal sleeve 17 and an optical fiber ceramic positioning sleeve or a self-locking flange is provided. The material is preferably PEEK or high temperature resistant nylon to ensure optical alignment and insulation creepage distance.

[0030] The grounding wire 18 is connected to the conductive metal sleeve 17 by screws or crimping plates to ensure a low-resistance grounding path.

[0031] In a preferred embodiment of the present invention, the bottom of the adapter mounting base 13 is provided with a rectangular structure made of metal, and the upper side is provided with an arc-shaped structure made of elastic material with a top opening. By utilizing the elastic swing of the arc-shaped structure, the fiber optic adapter 12 can be opened and closed for tight positioning. At the same time, the bottom of the fiber optic adapter 12 contacts the adapter mounting base 13, and one side of the adapter mounting base 13 can also be connected to the grounding device at the bottom of the fiber optic transceiver body 10 through a grounding wire, thereby automatically transmitting and processing any high voltage current that may exist on the fiber optic adapter 12.

[0032] The working principle of this utility model is as follows: In the idle position of this device, all the aforementioned driving components (representing power elements, electrical devices, and compatible power supplies) are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the field. The following mainly describes the working principle and process, without further explanation of the electrical control.

[0033] Initial state: The fiber optic transceiver is installed and the conductive metal sleeve 17, metal spring ring 14, metal contact ring 20, adapter mounting base 13, grounding wire 18 and grounding device are all correctly connected and in normal grounding state.

[0034] Fiber optic insertion preparation: The maintenance personnel align the fiber optic plug 15 of fiber optic 11 (connected to fiber optic 11 via fiber optic adapter 12) with the optical end hole 19 in preparation for insertion.

[0035] Pre-grounding contact: During insertion, as the fiber optic plug 15 gradually approaches the optical end hole 19, the metal contact ring 20 located at the outer end of the optical end hole 19 first contacts the end wall of the fiber optic adapter 12, and the metal spring ring 14, according to its designed free extension and elastic deformation, makes the contact action complete before the optical end face contacts, thereby preferentially conducting the high voltage current that may exist on the adapter 12 to the grounding device through the metal contact ring 20, the metal spring ring 14, the conductive metal sleeve 17 and the grounding wire 18.

[0036] Leakage discharge handling: When there is a high potential on the adapter 12 or conductive metal sleeve 17, the potential flows into the ground bus of the ground discharge base through the grounding wire 18. If the voltage exceeds the trigger value of the surge discharge element, the surge discharge element (such as a gas discharge tube or metal oxide arrester) is triggered to absorb and limit the residual voltage and protect the internal circuit of the equipment.

[0037] Complete insertion and operation: After the pre-grounding contact is completed and the grounding path is confirmed to be normal, continue insertion until the optical fiber plug 15 and the optical end face of the optical end hole 19 are aligned and the optical signal transmission is normal; throughout the insertion and removal process, the insulating positioning sleeve 16 and the ceramic positioning sleeve inside the conductive metal sleeve 17 ensure optical alignment and creepage distance, and avoid optical performance degradation and leakage failure.

[0038] Disconnection / Abnormal Handling: When the fiber optic plug 15 is unplugged or an abnormal potential is detected, the current preferentially flows to the ground along the low-resistance path, and the grounding discharge base absorbs the surge energy; at the same time, if a grounding fault or abnormal grounding resistance is detected, the alarm or shutdown mechanism of the equipment can be triggered to prevent further damage to the equipment.

[0039] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-efficiency lightning-protected fiber optic transceiver, characterized in that, include: Fiber optic transceiver body (10); a plurality of optical end holes (19) are evenly distributed on one side of the fiber optic transceiver body (10); A conductive metal sleeve (17) is installed on the outside of the optical end hole (19). The outer end of the conductive metal sleeve (17) is elastically connected to a metal contact ring (20) through a metal spring ring (14). The bottom of the conductive metal sleeve (17) is connected downward through a grounding wire (18) to a grounding device located at the bottom of the fiber optic transceiver body (10). The fiber optic plug (15) connected to the optical end hole (19) has its end away from the optical end hole (19) connected to the fiber optic (11) via a fiber optic adapter (12). The bottom of the fiber optic adapter (12) is clamped, supported and positioned by an adapter mounting base (13). The metal contact ring (20) is located at the outer end of the optical end hole (19), so that the end wall of the fiber optic adapter (12) contacts the metal contact ring (20) before the optical end hole (19) is connected.

2. The lightning protection optical fiber transceiver of claim 1, wherein, The metal spring ring (14) is made of phosphor bronze.

3. The lightning protection optical fiber transceiver of claim 2, wherein, The conductive metal sleeve (17) is made of nickel-plated brass.

4. The lightning protection optical fiber transceiver of claim 1, wherein, The grounding device is a grounding discharge base, which includes a metal mounting base fixed to the bottom of the optical fiber transceiver body (10) as a grounding bus, and surge discharge elements arranged in parallel or series with the grounding bus. The surge discharge elements are selected from gas discharge tubes, metal oxide arresters, or surge suppressors.

5. The lightning-protected high-efficiency optical fiber transceiver of claim 1, wherein, The conductive metal sleeve (17) is provided with an insulating positioning sleeve (16) on its inner side and is also provided with an optical fiber ceramic positioning sleeve or a self-locking flange.

6. The lightning-protected high-efficiency optical transceiver of claim 1, wherein, The bottom of the adapter mounting base (13) is provided with a rectangular structure made of metal, and the upper side is provided with an arc-shaped structure made of elastic material with a top opening. The arc-shaped structure is used to open and close the fiber optic adapter (12) for tight positioning.

7. The lightning-protected high-efficiency optical fiber transceiver of claim 6, wherein, One side of the adapter mounting base (13) is connected to the grounding device at the bottom of the fiber optic transceiver body (10) via a grounding wire.

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