Optical fiber distribution box, cabinet and data center

Abstract

The embodiment of the utility model provides an optical fiber distribution box, a cabinet and a data center, and aims to reduce the size of an optical cable. The optical fiber distribution box comprises a box body, a connector, at least one circulator, a first optical fiber, a second optical fiber and a third optical fiber, a containing cavity is defined by the box body, the connector is arranged in the box body and used for being connected with communication equipment located outside the box body, and the circulator is arranged in the containing cavity and used for being connected with the communication equipment located outside the box body. The first optical fiber is connected with the circulator and an optical cable positioned in the box body, and the optical cable comprises a plurality of transmission optical fibers; the second optical fiber and the third optical fiber are connected with the circulator and the connector; the optical signals transmitted to the optical cable by the communication equipment through the second optical fiber and the optical signals transmitted to the communication equipment by the optical cable through the third optical fiber are transmitted through the same transmission optical fiber through the first optical fiber, and when the number of the communication equipment is certain, the optical signals input and output by the communication equipment can be transmitted through one transmission optical fiber. The number of transmission optical fibers in the optical cable is reduced, and the size of the optical cable is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of optical communication technology, and specifically to a fiber optic distribution box, a cabinet, and a data center. Background Art

[0002] The fiber optic distribution box includes an optical cable and multiple connectors. The optical cable is connected to the communication equipment through the connector. The optical cable includes multiple transmission optical fibers for transmitting optical signals to the communication equipment and multiple transmission optical fibers for transmitting the optical signals of the communication equipment to the optical cable. Each communication equipment needs to be connected to two corresponding transmission optical fibers. The number of transmission optical fibers in the optical cable is large and the size of the optical cable is large. Utility Model Content

[0003] Embodiments of the present application provide a fiber optic distribution box, a cabinet, and a data center, aiming to reduce the size of optical cables.

[0004] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0005] On the one hand, an embodiment of the present application provides a fiber optic distribution box, which includes a box body, a connector, at least one circulator, a first optical fiber, a second optical fiber and a third optical fiber. The box body forms a cavity, the connector is arranged in the box body, the connector is used to connect the communication equipment outside the box body, the circulator is arranged in the cavity, the first optical fiber connects the circulator and the optical cable inside the box body, and the second optical fiber and the third optical fiber both connect the circulator and the connector; wherein the second optical fiber is used to transmit the optical signal from the connector to the circulator, and the first optical fiber is used to transmit the optical signal from the second optical fiber to the optical cable; the first optical fiber is also used to transmit the optical signal from the optical cable to the circulator, and the third optical fiber is used to transmit the optical signal from the first optical fiber to the connector.

[0006] The optical cable includes multiple transmission optical fibers. The optical fiber distribution box provided in the embodiment of the present application can allow the optical signal transmitted from the communication device to the optical cable via the second optical fiber and the optical signal transmitted from the optical cable to the communication device via the third optical fiber to be transmitted through the first optical fiber through the same transmission optical fiber in the optical cable. When the number of communication devices is constant, the optical signals input and output by the communication device can be transmitted through a single transmission optical fiber, reducing the number of transmission optical fibers in the optical cable and reducing the size of the optical cable. Conversely, when the number of transmission optical fibers in the optical cable is constant, the number of communication devices that can be connected to the optical cable is increased, thereby improving the transmission capacity of the optical cable.

[0007] In some embodiments, the connector includes a first connector, a plurality of first connectors are provided, the circulator includes at least one first circulator, and the same first circulator is connected to two first connectors, wherein one first connector is connected to one first circulator through a second optical fiber, and another first connector is connected to the same first circulator through a third optical fiber.

[0008] Through the above-mentioned setting, the communication device is connected to the first circulator through the two first connectors, so that the optical signal transmitted by the communication device to the optical cable via the second optical fiber and the optical signal transmitted by the optical cable to the communication device via the third optical fiber can be transmitted through the first optical fiber through the same transmission optical fiber in the optical cable. When the number of communication devices is constant, the optical signals input and output by the communication device can be transmitted through one transmission optical fiber, which reduces the number of transmission optical fibers in the optical cable and reduces the size of the optical cable.

[0009] In other embodiments, the connector includes a first connector, there are multiple first connectors, the circulator includes at least one second circulator, and the same second circulator is connected to multiple first connectors, wherein several first connectors are connected to one second circulator through a second optical fiber, and the remaining several first connectors are connected to the same second circulator through a third optical fiber.

[0010] Through the above configuration, one second circulator can connect multiple first connectors via multiple second optical fibers and multiple third optical fibers, thereby reducing the number of circulators and the material cost of the optical fiber distribution box.

[0011] In some embodiments, the connector may also include multiple first connectors and at least one second connector at the same time, the circulator includes at least one third circulator, and the first connector and the second connector are both connected to the same third circulator; the second optical fiber and the third optical fiber each include multiple, several first connectors are connected to the third circulator through several second optical fibers, and the remaining several first connectors are connected to the third circulator through several third optical fibers, and the second connector is connected to the third circulator through the remaining several second optical fibers and the remaining several third optical fibers, and the second optical fiber and the third optical fiber connecting the second connector and the third circulator are arranged in parallel.

[0012] Through the above arrangement, the third circulator in the optical fiber distribution box can be connected to the first connector and the second connector at the same time, thereby increasing the types of connectors in the optical fiber distribution box and improving the adaptability of the optical fiber distribution box.

[0013] In other embodiments, the connector may only include a second connector, the circulator includes a fourth circulator, the second connector is connected to the fourth circulator through a second optical fiber and a third optical fiber, and the second optical fiber and the third optical fiber connecting the second connector and the fourth circulator are arranged in parallel.

[0014] With the above arrangement, the communication device is connected to the fourth circulator via the second connector, allowing both the optical signal transmitted from the communication device to the optical cable via the second optical fiber and the optical signal transmitted from the optical cable to the communication device via the third optical fiber to be transmitted via the first optical fiber through the same transmission optical fiber in the optical cable. Given a certain number of communication devices, the input and output optical signals of the communication devices can be transmitted via a single transmission optical fiber, reducing the number of transmission optical fibers in the optical cable and the size of the optical cable. Compared to embodiments in which the optical fiber distribution box includes only the first connector, the second connector can be connected to both the second and third optical fibers simultaneously, reducing the number of connectors provided in the optical fiber distribution box and simplifying the structure of the optical fiber distribution box.

[0015] In some embodiments, the connector includes a housing, and the housings of at least two connectors connected to the same circulator are connected to each other; this can improve the mechanical strength of the connector.

[0016] In some embodiments, a plurality of first optical fibers are provided, the plurality of first optical fibers are connected to the circulator, and the plurality of first optical fibers are arranged in parallel, so that the arrangement of the plurality of first optical fibers inside the cavity can be arranged.

[0017] In some embodiments, the fiber optic distribution box further includes a first splitting structure disposed within the cavity. The optical cable within the cavity is split into multiple transmission optical fibers by the first splitting structure, one of the multiple transmission optical fibers being connected to the first optical fiber. This allows for splitting of the multiple transmission optical fibers in the optical cable, allowing for easier connection to the connectors.

[0018] In some embodiments, the fiber optic distribution box also includes a first branching structure and a second branching structure arranged in the cavity. The optical cable located in the cavity is divided into multiple transmission optical fiber groups by the first branching structure, and each transmission optical fiber group is divided into multiple transmission optical fibers by the second branching structure. The transmission optical fibers are connected to the first optical fibers.

[0019] Through the above arrangement, the first branching structure and the second branching structure can realize the step-by-step splitting of multiple transmission optical fibers in the optical cable, which is suitable for the situation where there are too many transmission optical fibers in the optical cable.

[0020] In some embodiments, the transmission optical fiber is fusion-spliced ​​with the first optical fiber. This configuration can reduce reflection of the optical signal at the connection between the transmission optical fiber and the first optical fiber, thereby avoiding increasing the loss of the optical signal during transmission.

[0021] In some embodiments, the first optical fiber includes multiple, the optical cable includes multiple transmission optical fibers; the optical fiber distribution box also includes an optical cross-device arranged in the cavity, the transmission optical fiber is connected to at least part of the first optical fibers through the optical cross-device, and the optical cross-device is used to select the corresponding connection between a certain transmission optical fiber and a certain first optical fiber to achieve flexible scheduling of the transmission of optical signals between multiple transmission optical fibers and multiple first optical fibers.

[0022] On the other hand, an embodiment of the present application further provides a cabinet, which includes at least one optical fiber distribution box as described above and a cabinet body, wherein the optical fiber distribution box is disposed in the cabinet body.

[0023] On the other hand, an embodiment of the present application further provides a data center, which includes multiple cabinets and switches as described above, and the fiber optic distribution boxes in the cabinets are connected to the switches.

[0024] It can be understood that the beneficial effects that can be achieved by the cabinets and data centers provided by the above embodiments of the present application can refer to the beneficial effects of the fiber optic distribution boxes mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a data center in an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the optical fiber distribution box in the embodiment of the present application. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the structure of the optical fiber distribution box in the embodiment of the present application. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the structure of the optical fiber distribution box in the embodiment of the present application. Figure 3 ;

[0029] Figure 5 This is a schematic diagram of the structure of the optical fiber distribution box in the embodiment of the present application. Figure 4 .

[0030] Explanation of the accompanying drawings: 100, data center; 20, computer room; 10, cabinet; 30, optical cable; 31, transmission optical fiber group; 1, optical fiber distribution box; 11, box body; 12, connector; 121, first connector; 122, second connector; 13, optical fiber; 141, first branching structure; 142, second branching structure; 15, circulator; 151, first circulator; 152, second circulator; 153, third circulator; 154, fourth circulator; 161, first optical fiber; 162, second optical fiber; 163, third optical fiber; 17, optical cross-connect device. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0033] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left", "right", "horizontal" and "vertical" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0034] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0035] It should be noted that, in the description of the embodiments of the present application, unless otherwise clearly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or an integral connection; it can also be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0036] Reference Figure 1 , an embodiment of the present application provides a data center 100 for transmitting, accelerating, displaying, calculating, and storing data information on a network infrastructure. The data center 100 includes a computer room 20 and a plurality of cabinets 10 arranged in the computer room 20. The cabinet 10 includes a cabinet body and electronic equipment arranged inside the cabinet body, and the electronic equipment may include a fiber optic distribution box 1, a server, and the like. The data center 100 may also include a switch, and the switch may also be arranged in the cabinet 10; the fiber optic distribution box 1 in the cabinet 10 is connected to the switch and may also be connected to communication equipment to achieve information transmission between communication equipment; the fiber optic distribution box 1 and the switch may be connected through an optical cable 30. Exemplarily, the communication equipment may include an optical module, which is an optoelectronic device for photoelectric and electro-optical conversion in the information and communication technology (ICT) industry and is a core component of optical communication. The embodiment of the present application does not impose any special restrictions on the specific form of the above-mentioned optical module.

[0037] In the above embodiment, the fiber optic distribution box 1 can be connected to multiple optical modules, and the connection between the fiber optic distribution box 1 and the switch can realize information transmission between any optical modules. For example, the two optical modules for information transmission can be connected to the same fiber optic distribution box 1, or they can be connected to two different fiber optic distribution boxes 1. The two fiber optic distribution boxes 1 can be located in the same cabinet 10 or in two different cabinets 10.

[0038] Reference Figure 2 In the above embodiment, any of the servers, switches, and optical modules can be connected to the fiber optic distribution box 1 via the optical cable 30. The fiber optic distribution box 1 provided in the embodiment of the present application may include a box body 11 and a connector 12. The box body 11 forms a cavity; a connection panel is provided on one side of the box body 11, and the connector 12 is disposed on the connection panel. The end of the connector 12 located outside the cavity is used to connect to other communication devices, and the end of the connector 12 located inside the cavity is connected to the end of the optical cable 30 located inside the cavity.

[0039] It can be understood that the optical cable 30 is formed by a plurality of transmission optical fibers 13 covered by a protective structure. In some embodiments, the optical fiber distribution box 1 may include a first branching structure 141. The optical cable 30 located in the cavity is divided into a plurality of transmission optical fibers 13 by the first branching structure 141. The split transmission optical fibers 13 are convenient for connection with the connector 12. Exemplarily, the first branching structure 141 may include a main channel and a plurality of sub-channels, and the plurality of sub-channels are all connected to the main channel. In the process of dividing the optical cable 30 into a plurality of transmission optical fibers 13, the optical cable 30 extends into the main channel, and then each transmission optical fiber 13 in the optical cable 30 extends from a corresponding sub-channel to realize the splitting of the plurality of transmission optical fibers 13 in the optical cable 30. In the above embodiment, in order to reduce the size of the first branching structure 141, the main channel and the sub-channels of the first branching structure 141 can be bent to reduce the volume of the cavity occupied by the first branching structure 141.

[0040] Reference Figure 3In other embodiments, the fiber optic distribution box 1 may include a first branching structure 141 and a second branching structure 142. The optical cable 30 within the cavity is divided into multiple transmission fiber groups 31 by the first branching structure 141, and each transmission fiber group 31 is divided into multiple transmission fibers 13 by the second branching structure 142. As in the above embodiment, the first branching structure 141 may include a main channel and multiple sub-channels, each of which is connected to the main channel. The second branching structure 142 may be the same as the first branching structure 141 and will not be described in detail here. In the process of dividing the optical cable 30 into multiple transmission optical fibers 13, the optical cable 30 extends into the main channel of the first branching structure 141, and then the optical cable 30 is divided into multiple transmission optical fiber groups 31, each transmission optical fiber group 31 correspondingly extends from a sub-channel of the first branching structure 141, and then a transmission optical fiber group 31 is extended into the main channel of the second branching structure 142, and each transmission optical fiber 13 in a transmission optical fiber group 31 correspondingly extends from a sub-channel of the second branching structure 142, so as to realize the step-by-step splitting of multiple transmission optical fibers 13 in the optical cable 30, which is suitable for the situation where there are too many transmission optical fibers 13 in the optical cable 30.

[0041] Reference Figure 2 and Figure 3 In some embodiments, the fiber optic distribution box 1 further includes at least one circulator 15, a first optical fiber 161, a second optical fiber 162, and a third optical fiber 163, wherein the circulator 15 is used to connect to the optical cable 30 and also to connect to the connector 12. Exemplarily, the first optical fiber 161 connects the circulator 15 and the optical cable 30 located in the box body 11, and the second optical fiber 162 and the third optical fiber 163 both connect the circulator 15 and the connector 12. The second optical fiber 162 is used to transmit an optical signal from the connector 12 to the circulator 15, and the first optical fiber 161 is used to transmit an optical signal from the second optical fiber 162 to the optical cable 30; the first optical fiber 161 is also used to transmit an optical signal from the optical cable 30 to the circulator 15, and the third optical fiber 163 is used to transmit an optical signal from the first optical fiber 161 to the connector 12.

[0042] The optical cable 30 includes multiple transmission optical fibers 13. The first optical fiber 161 can be connected to a certain transmission optical fiber 13. The connection method can include fusion splicing to reduce the reflection of the optical signal at the connection point and avoid increasing the loss of the optical signal during transmission.

[0043] In the above embodiment, the circulator 15 may include components such as a polarization filter and a Faraday rotator, so that the optical signal transmitted from the connector 12 connected to the second optical fiber 162 to the circulator 15 via the second optical fiber 162 is transmitted via the first optical fiber 161 to the transmission optical fiber 13 in the optical cable 30, while the optical signal transmitted via the first optical fiber 161 to the circulator 15 is transmitted via the third optical fiber 163 to the connector 12 connected to the third optical fiber 163. This allows both the optical signal transmitted from the communication device to the optical cable 30 via the second optical fiber 162 and the optical signal transmitted from the optical cable 30 to the communication device via the third optical fiber 163 to be transmitted via the first optical fiber 161 through the same transmission optical fiber 13 in the optical cable 30. Given a certain number of communication devices, the input and output optical signals of the communication devices can be transmitted via a single transmission optical fiber 13, reducing the number of transmission optical fibers 13 in the optical cable 30 and the size of the optical cable 30. Conversely, given a certain number of transmission optical fibers 13 in the optical cable 30, the number of communication devices that can be connected to the optical cable 30 increases, thereby improving the transmission capacity of the optical cable 30.

[0044] In the above embodiment, the connector 12 is a fiber optic connector, which can be divided into LC, FC, SC, MPO, etc. according to the structural form. Among them, LC, FC, and SC are single-core connectors (the port of a single-core connector can only connect to one optical fiber), and MPO is a multi-core connector (the port of a multi-core connector can connect to multiple optical fibers, such as 12, 24, etc.). Among them, both the single-core connector and the multi-core connector include a housing. The connector can be connected to a circulator 15 through one optical fiber or several optical fibers. In some embodiments, the same circulator 15 can be connected to at least two connectors at the same time. The at least two connectors 12 connected to the same circulator 15 can be independently provided, or the housings of at least two connectors can be connected to each other, so that the housings of the at least two connectors 12 connected to the same circulator 15 form an integrated structure. Exemplarily, in an embodiment in which the connector 15 is an LC connector, the two LC connectors connected to the same circulator 15 are independently provided, or the housings of the two LC connectors are connected to form an integrated LC connector; compared with the separate LC connectors, the mechanical strength of the connector 15 is improved. It should be understood that more than two LC connector shells may be connected to form an integrated LC connector, and this application does not limit this.

[0045] Reference Figure 4In some embodiments, the circulator 15 may include at least one first circulator 151. The first circulator 151 may be a single-path circulator, each of which is connected to only one first optical fiber 161, one second optical fiber 162, and one third optical fiber 163. The connector 12 includes a first connector 121. The first connector 121 is the single-core connector described above. The first connector 121 may be connected to the second optical fiber 162 or the third optical fiber 163. There may be multiple first connectors 121. For example, the same first circulator 151 is connected to two first connectors 121: one first connector 121 is connected to the second optical fiber 162 on the first circulator 151, and the other first connector 121 is connected to the third optical fiber 163 on the same first circulator 151. It is understood that the optical signal transmitted by one first connector 121 via the second optical fiber 162 is transmitted to the optical cable 30 via the first optical fiber 161, and the optical signal transmitted by the optical cable 30 via the first optical fiber 161 is transmitted to the other first connector 121 via the third optical fiber 163. Through the above-mentioned setting, the fiber optic distribution box can connect the communication equipment to the first circulator 151 through the two first connectors 121. The optical signal transmitted by the communication equipment to the optical cable 30 via the second optical fiber 162 and the optical signal transmitted by the optical cable 30 to the communication equipment via the third optical fiber 163 are both transmitted through the first optical fiber 161 through the same transmission optical fiber 13 in the optical cable 30. When the number of communication equipment is constant, the optical signals input and output by the communication equipment can be transmitted through one transmission optical fiber 13, which reduces the number of transmission optical fibers 13 in the optical cable 30 and reduces the size of the optical cable 30.

[0046] In other embodiments, the circulator 15 may include at least one second circulator 152. The second circulator 152 may be a multi-way circulator that can be connected to multiple first connectors 121. Each multi-way circulator can connect to multiple first optical fibers 161, multiple second optical fibers 162, and multiple third optical fibers 163. Each first optical fiber 161, second optical fiber 162, and third optical fiber 163 is correspondingly connected to form a set of connected optical fibers. In each set of connected optical fibers, an optical signal input through a second optical fiber 162 can be output from the corresponding first optical fiber 161, and an optical signal input through the first optical fiber 161 can be output from the corresponding third optical fiber 163. Each set of connected optical fibers is relatively independent and does not interfere with each other. Compared to a single-way circulator, a multi-way circulator allows multiple first optical fibers 161, multiple second optical fibers 162, and multiple third optical fibers 163 to share components in the circulator 15 (e.g., polarization filters, Faraday rotators, etc.), thereby reducing the material and assembly costs of the circulator 15.

[0047] For example, the same second circulator 152 can be connected to multiple first connectors 121. Among the multiple first connectors 121, several first connectors 121 are connected to one second circulator 152 via the second optical fiber 162, while the remaining first connectors 121 are connected to the same second circulator 152 via the third optical fiber 163. This allows one second circulator 152 to be connected to multiple first connectors 121 via the multiple second optical fibers 162 and the multiple third optical fibers 163, thereby reducing the number of circulators 15 and the material cost of the fiber optic distribution box 1.

[0048] In the above embodiment, the second circulator 152 can be connected to multiple first connectors 121. Accordingly, the multiple first optical fibers 161 connected to the multi-way circulator can be arranged in parallel. Parallel arrangement can be understood as encapsulating the multiple first optical fibers 161 in a common protective structure, for example, by wrapping the multiple first optical fibers 161 together with an insulating layer. This can regulate the arrangement of the first optical fibers 161 within the cavity.

[0049] In an embodiment where the connector 12 includes a plurality of first connectors 121, the connector 12 may further include at least one second connector 122, where the second connector 122 is the multi-core connector described above. Due to the characteristics of the multi-core connector, the second connector 122 may be connected to the second optical fiber 162 and the third optical fiber 163 at the same time; the circulator 15 may include at least one third circulator 153, which may also be a multi-way circulator; the first connector 121 and the second connector 122 are both connected to the same third circulator 153; the second optical fiber 162 and the third optical fiber 163 each include a plurality of first connectors 121, wherein several first connectors 121 are connected to the third circulator 153 via several second optical fibers 162, and the remaining number of first connectors 121 and the third circulator 153 are connected via several second optical fibers 162, and the remaining number of third circulators 153 are connected via several second optical fibers 162. The first connector 121 is connected to the third circulator 153 via a plurality of third optical fibers 163, and the second connector 122 is connected to the third circulator 153 via the remaining plurality of second optical fibers 162 and the remaining plurality of third optical fibers 163 (i.e., the plurality of second optical fibers 162 include both the plurality of second optical fibers 162 connected to the first connector 121 and the plurality of second optical fibers 162 connected to the second connector 122; the plurality of third optical fibers 163 include both the plurality of third optical fibers 163 connected to the first connector 121 and the plurality of third optical fibers 163 connected to the second connector 122). Furthermore, the second optical fibers 162 and the third optical fibers 163 connecting the second connector 122 and the third circulator 153 are arranged in parallel. Through the above arrangement, the third circulator 153 in the optical fiber distribution box 1 can be connected to the first connector 121 and the second connector 122 at the same time, thereby increasing the variety of connectors 12 in the optical fiber distribution box 1 and improving the adaptability of the optical fiber distribution box 1.

[0050] In yet other embodiments, the circulator 15 may further include at least one fourth circulator 154, which may also be a multi-way circulator. The connector 12 may include only the second connector 122, wherein an optical signal transmitted by a second connector 122 via the second optical fiber 162 is transmitted to the optical cable 30 via the first optical fiber 161, and an optical signal transmitted by the optical cable 30 via the first optical fiber 161 is transmitted to the same second connector 122 via the third optical fiber 163. With the above arrangement, a communication device is connected to the fourth circulator 154 via the second connector 122. Similarly, the optical signal transmitted by the communication device to the optical cable 30 via the second optical fiber 162 and the optical signal transmitted by the optical cable 30 to the communication device via the third optical fiber 163 are both transmitted via the first optical fiber 161 through the same transmission optical fiber 13 in the optical cable 30. When the number of communication devices is constant, the optical signals input and output by the communication devices can be transmitted via the same transmission optical fiber 13, thereby reducing the number of transmission optical fibers 13 in the optical cable 30 and the size of the optical cable 30.

[0051] Compared to embodiments in which the fiber optic distribution box 1 includes only the first connector 121, the second connector 122 in this embodiment can simultaneously connect to the second optical fiber 162 and the third optical fiber 163, thereby reducing the number of connectors 12 required for the fiber optic distribution box 1 and simplifying the structure of the fiber optic distribution box 1. Furthermore, the second optical fiber 162 and the third optical fiber 163 connected to the same second connector 122 can be arranged in parallel to streamline the arrangement of the second optical fiber 162 and the third optical fiber 163 within the cavity. Compared to the single-core first connector 121, the multi-core second connector 122 increases the variety of connectors 12 available for the fiber optic distribution box 1 and improves the applicability of the fiber optic distribution box 1.

[0052] In an embodiment where the port of the second connector 122 can connect to 12 optical fibers, the second connector 122 can connect to 6 second optical fibers 162 and 6 third optical fibers 163. It can be understood that the multi-way circulator connected thereto is connected to 6 first optical fibers 161. Similarly, the 6 first optical fibers 161 connected to the multi-way circulator can be arranged in parallel.

[0053] It should be noted that the present application may include an embodiment of a single-way circulator connecting two first connectors 121, an embodiment of a multi-way circulator connecting multiple first connectors 121, an embodiment of a multi-way circulator connecting one second connector 122, an embodiment of a multi-way circulator connecting multiple second connectors 122, and a combination of one or more embodiments of an embodiment of a multi-way circulator connecting multiple first connectors 121 and second connectors 122 at the same time.

[0054] Reference Figure 5In some embodiments, the fiber optic distribution box 1 may further include an optical cross-connect device 17 disposed within the cavity. The optical cross-connect device 17 connects at least a portion of the transmission optical fibers 13 in the optical cable 30 and at least a portion of the first optical fibers 161 connected to the circulator 15, thereby enabling flexible scheduling of optical signal transmission between the multiple transmission optical fibers 13 and the multiple first optical fibers 161 in the optical cable 30. Exemplarily, the optical cross-connect device 17 connects the multiple transmission optical fibers 13 and the multiple first optical fibers 161. The optical cross-connect device 17 can receive multiple control signals. When the optical cross-connect device 17 receives a first control signal, the optical cross-connect device 17 connects the first transmission optical fiber 13 to the first first optical fiber 161. When the optical cross-connect device 17 receives a second control signal, the optical cross-connect device 17 connects the first transmission optical fiber 13 to the second first optical fiber 161. In some embodiments, some of the multiple transmission optical fibers 13 branched from the optical cable 30 can be connected to the first optical fibers 161 via the optical cross-connect device 17, while another portion of the transmission optical fibers 13 can be directly connected to the first optical fibers 161. In other embodiments, the multiple transmission optical fibers 13 branched from the optical cable 30 may all be connected to the first optical fiber 161 via an optical cross-connect device 17 .

[0055] See also Figures 2 to 5 In this embodiment of the present application, the number of ports of the circulator 15 for connecting to the first optical fiber 161 , the second optical fiber 162 , and the third optical fiber 163 is not limited. Figures 2 to 5 The connection relationship between the circulator 15 and the first optical fiber 161, the second optical fiber 162, and the third optical fiber 163 is merely an example. For example, the first optical fiber 161, the second optical fiber 162, and the third optical fiber 163 connected to the first circulator 151 can each be connected to the first circulator 151 through three ports. For the first optical fiber 161, the second optical fiber 162, and the third optical fiber 163 connected to the second circulator 152, multiple first optical fibers 161 can be connected to the second circulator 152 through one port, multiple second optical fibers 162 can be connected to the second circulator 152 through another port, and multiple third optical fibers 163 can be connected to the second circulator 152 through yet another port; alternatively, multiple second optical fibers 162 and multiple third optical fibers 163 can each be connected to the second circulator 152 through one port. The configurations for the third circulator 153 and the fourth circulator 154 are similar and are not described in detail here.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fiber optic distribution box, characterized in that: include: a box body, wherein the box body forms a cavity; A connector, the connector being provided on the box body and being used for connecting to a communication device located outside the box body; at least one circulator, the circulator being disposed in the cavity; a first optical fiber, a second optical fiber, and a third optical fiber, wherein the first optical fiber connects the circulator and the optical cable located in the box, and the second optical fiber and the third optical fiber both connect the circulator and the connector; The second optical fiber is used to transmit the optical signal from the connector to the circulator, and the first optical fiber is used to transmit the optical signal from the second optical fiber to the optical cable; the first optical fiber is also used to transmit the optical signal from the optical cable to the circulator, and the third optical fiber is used to transmit the optical signal from the first optical fiber to the connector.

2. The optical fiber distribution box according to claim 1, wherein: The connector includes a first connector, a plurality of first connectors are provided, the circulator includes at least one first circulator, and the same first circulator is connected to two first connectors; One of the first connectors is connected to one of the first circulators via the second optical fiber, and another of the first connectors is connected to the same first circulator via the third optical fiber.

3. The optical fiber distribution box according to claim 1 or 2, characterized in that: The connector includes a first connector, and a plurality of the first connectors are provided. The circulator includes at least one second circulator, and the same second circulator is connected to a plurality of the first connectors. Several of the first connectors are connected to one second circulator via the second optical fiber, and the remaining several of the first connectors are connected to the same second circulator via the third optical fiber.

4. The optical fiber distribution box according to claim 1 or 2, characterized in that: The connector includes a plurality of first connectors and at least one second connector, the circulator includes at least one third circulator, and the first connector and the second connector are both connected to the same third circulator; The second optical fiber and the third optical fiber each include multiple ones, several of the first connectors are connected to the third circulator through several of the second optical fibers, and the remaining several of the first connectors are connected to the third circulator through several of the third optical fibers. The second connector is connected to the third circulator through the remaining several of the second optical fibers and the remaining several of the third optical fibers, and the second optical fiber and the third optical fiber connecting the second connector and the third circulator are arranged in parallel.

5. The optical fiber distribution box according to claim 1 or 2, characterized in that: The connector includes a second connector, the circulator includes a fourth circulator, the second connector is connected to the fourth circulator through a second optical fiber and a third optical fiber, and the second optical fiber and the third optical fiber connecting the second connector and the fourth circulator are arranged in parallel.

6. The optical fiber distribution box according to claim 1 or 2, characterized in that: The connector includes a housing, and the housings of at least two connectors connected to the same circulator are connected to each other.

7. The optical fiber distribution box according to claim 3, characterized in that: There are multiple first optical fibers, and the multiple first optical fibers are connected to the circulator, and the multiple first optical fibers are arranged in parallel.

8. The optical fiber distribution box according to claim 1 or 2, characterized in that: The optical fiber distribution box further includes a first branching structure disposed in the cavity. The optical cable in the cavity is divided into a plurality of transmission optical fibers by the first branching structure. One of the plurality of transmission optical fibers is connected to the first optical fiber.

9. The optical fiber distribution box according to claim 1 or 2, characterized in that: The fiber optic distribution box also includes a first branching structure and a second branching structure arranged in the cavity. The optical cable located in the cavity is divided into multiple transmission optical fiber groups by the first branching structure, and each transmission optical fiber group is divided into multiple transmission optical fibers by the second branching structure. The transmission optical fibers are connected to the first optical fibers.

10. The optical fiber distribution box according to claim 8, characterized in that: The transmission optical fiber is fusion-spliced ​​with the first optical fiber.

11. The optical fiber distribution box according to claim 1 or 2, characterized in that: The first optical fibers include a plurality of fibers, and the optical cable includes a plurality of transmission optical fibers; the optical fiber distribution box further includes an optical cross-device disposed in the cavity, and at least part of the transmission optical fibers are connected to at least part of the first optical fibers through the optical cross-device, and the optical cross-device is used to adjust the corresponding connection between a certain transmission optical fiber and a certain first optical fiber.

12. A cabinet, characterized in that: The optical fiber distribution box comprises at least one optical fiber distribution box according to any one of claims 1 to 11 and a cabinet, wherein the optical fiber distribution box is arranged in the cabinet.

13. A data center, characterized in that: The method comprises a plurality of cabinets and switches according to claim 12, wherein the optical fiber distribution boxes in the cabinets are connected to the switches.

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