• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The optical box (CX) comprises a tubular housing (10) having a closed end (10a) and an open end (10b) with an external thread (11), and a cover (20) designed to be fastened and locked on the open end (10b) of the tubular housing (10) by a retaining ring (50) with an internal thread (51) that is designed to engage with the external thread (11) of the housing (10), and a locking element (55) that is designed to engage with the lock-receiving element (25) of the cover (20), locking the retaining ring (50) to the cover (20) and to the housing (10). The cover (20) is traversed by an input adapter (AE) that can be coupled to an optical distribution cable (CD) and by output adapters (AS) in which user terminal cables (CT) can be coupled.
    公开号:ES2845211A2
    申请号:ES202190034
    申请日:2019-12-23
    公开日:2021-07-26
    发明作者:Anderson Marcelo Stancyk
    申请人:Furukawa Electric LatAm SA；
    IPC主号:
    专利说明:

    [0002] OPTICAL JUNCTION BOX OR TERMINATION OF AN OPTICAL CABLE IN A NETWORK
    [0004] Field of the invention
    [0006] The present invention relates to an optical junction or termination box, of a hermetic configuration, of the type having a housing provided with an access opening that is closed by a sealed lid and provided with an inlet adapter that has an external end connected. to an optical distribution cable, consisting of one or more optical fibers, and an internal end by which a fiber or fiber optic split of the distribution cable is connected to a balanced and / or unbalanced splitter device, the cover is provided with output adapters, each of which has an inner end, connected by means of a splitter device, to a fiber or fiber splitter of the optical distribution cable, and an outer end adapted to receive a connector of a respective terminal optical cable of a user.
    [0008] Background
    [0010] An optical termination box is described in patent application BR 102016029000 7, of the same applicant, with multiple outputs to connect multiple optical cables to user terminals of an optical distribution cable that will be received in said optical box.
    [0012] In this previous configuration, the single or each of the multiple optical fibers of the distribution optical cable received in the optical termination box are connected to a respective output adapter mounted on a box lid, by means of lengths of the fiber. optics of the distribution cable itself or by splitters of at least one optical fiber of the distribution cable which may be, for example, of the "low friction" type.
    [0014] The above configuration is designed to receive and retain, without risk of coming off, the multi-fiber or “low friction” distribution optical cable (with just one fiber) and also allows the connection operations of the fiber (s) of the cable. Optical distribution, with outlet adapters on the box cover, executed by the installation operator outside the installation site of the termination box and before the lid closes against the box, preventing the movement of the internal elements that house the fiber optic sections inside the termination box and the movement of the components optics as a result of vibrations or impacts.
    [0016] Despite the constructive and operational advantages achieved with the optical termination box developed by the applicant and described in patent application BR 102016029000-7, the applicant has developed a new configuration solution, which is the subject of patent application BR 102018075693-1 and according to which the optical box may be provided with means that allow it to operate not only as an optical termination box, but also as an optical junction box, capable of receiving a distribution cable or wiring, containing one or multiple optical fibers, with balanced or unbalanced outputs, or part of the multiple optical fibers of the distribution cable, that terminate inside the box, so that each fiber or fiber division terminated in the box can be connected to a respective cable user terminal, as the rest of the divisions of the fiber or the other optical fibers of the distribution cable, do not terminate inside the c aja, leaving through a respective output adapter, to go to another bypass and / or optical termination by means of a continuation cable or wiring.
    [0018] According to the configuration proposed in patent application BR 102018075693-1, it is also possible to use the optical termination box, which has the advantageous characteristics described in the previous patent application BR 102016029000-7, as an optical junction box, allowing , if it is desirable and convenient, to derive, in each optical box of a network, part of the input optical power, according to the needs of each application and until there are no more fibers to be derived or there is not enough power for a new derivation of the optical signal from the last box, which becomes an optical termination box.
    [0020] The optical box object of the BR 102018075693-1 application therefore enjoys the advantageous aspects of application versatility as a branch box and / or termination box to be used in a fiber optic network with connectorized cables, preferably pre-connected, allowing the assembly operations of the input adapter, the output adapters and the housing cover to be carried out at the factory so that the optical box is received by the installer, already in the sealed and tested condition, preventing access to its during installation of the box in the fiber optic network, all that is required by the installers connect the end connectors of the distribution, continuation and termination optical cables to their previously mounted adapters in the opposite terminal regions of the optical box housing.
    [0022] Despite the advantageous aspects mentioned above, the optical box object of patent application BR 102018075693-1 still has its housing provided with two opposite terminal openings, which are hermetically sealed, one to receive the distribution cable or continuation through one inlet adapter and the other to be closed by the sealed lid that carries the outlet and (if applicable) continuation adapters. This configuration, in addition to requiring the necessary components for the two terminal closures and times of fusion welding or adhesive curing, with the corresponding manufacturing and assembly costs, makes the processing and productivity of this solution difficult.
    [0024] Another aspect to take into account in the boxes that are the subject of patent application BR 102018 075693-1 refers to the fact that the lid is permanently sealed to the housing by fusion or adhesive, which does not allow its subsequent removal from the housing even during the production phase of the optical box. If the test of the box, after the assembly of its internal connections and its final closure, results in a failure, it will no longer be possible to reuse the lid and the housing, which requires reassembling all the internal elements that carry these two parts that are destroyed.
    [0026] Description of the invention
    [0028] In view of the foregoing application limitations and in order to construct a sealed box with opposite ends requiring hermetically mounted adapters, the present invention aims to provide an optical box of simple and robust configuration with relatively few components, having a housing provided with a single access opening to be hermetically sealed by a mechanically sealed and reusable lid, said optical box is further provided with means for its operation not only as an optical termination box, but also as an optical junction box, capable of receiving a distribution cable or cabling, containing one or multiple optical fibers, with balanced or unbalanced outputs, or part of the multiple optical fibers of the distribution cable, terminated within the enclosure, so that each fiber or split of The fiber terminated in the box can be connected to a respective user terminal cable, while the rest of the fiber divisions or the other optical fibers of the distribution cable do not end inside the box, leaving through a respective output adapter, to go to another bypass and / or optical termination by means of a continuation cable or wiring.
    [0030] According to the invention, the optical box can be used as an optical junction box, allowing, if desired and convenient, to derive, in each optical box of a network, part of the input optical power, according to the needs of each application and until there are no more optical fibers to bypass or until there is not enough power to bypass the optical signal from the last box, which will only function as an optical termination box.
    [0032] Brief description of the drawings
    [0034] The invention will now be described by way of example with reference to the accompanying drawings, in which:
    [0036] Figure 1 is an enlarged perspective view of an optical box, which functions as a branch box;
    [0037] Figure 2 represents a bottom plan view of the enlarged assembly illustrated in Figure 1 that receives, by means of an input adapter, an optical distribution cable formed, in this example, by a single optical fiber divided into optical fibers of end in the optical box, to connect, each one, with a respective user terminal cable, and a continuation optical fiber, which does not end inside the box, leaving the latter through a respective adapter continuation, to go to another branch and / or optical termination box, by means of a continuation cable or wiring; Figure 3 illustrates a perspective view of the optical box of Figure 1 mounted and in longitudinal section through the center;
    [0038] Figure 4 illustrates a perspective view of the optical box of Figures 1 and 3, in assembled condition and viewed from the end closed by the lid;
    [0039] Figure 5 represents a longitudinal section view through the center of the optical box illustrated in Figure 3;
    [0040] Figure 5A represents an enlarged detail of Figure 5 to better illustrate how the end cap is supported, retained and sealed by action of a retaining ring against the open end of the optical box housing;
    [0041] Figure 6 represents a front view of the cover of the optical box of Figures 1, 3 and 5; Figure 7 represents a plan view of the inner side of the cap retaining ring in the housing of the optical box; Y
    [0042] Figure 8 is an enlarged perspective view of the assembly defined by the tubular housing, the cover plate and the retaining ring, illustrating the rotational locking elements of the plate at the open end of the tubular housing.
    [0044] Description of the invention
    [0046] As illustrated in the accompanying drawings, the present invention applies to a watertight CX optical box, of the type having a tubular housing 10, of approximately circular cross-section, without being limited to this configuration, and made of any material suitable for use. underground or outdoor installation, for example, polypropylene, having a closed end 10a and an open end 10b, opposite the first and circular in outline, provided with an external thread 11 to be closed by a cover 20, preferably built on a plate 21 of any suitable polymer, substantially circular in outline and having an outer face 20a and an inner side 20b that can abut and lock against the open end 10b of the tubular shell 10.
    [0048] The plate 21 incorporates, on the inner side 20b of the cover 20, a tubular projection 22, circular in outline and with an outer diameter dimensioned to allow its telescopic adjustment within the open end 10b of the housing 10.
    [0050] The plate 21 has a peripheral region 23, radially external to the tubular projection 22 and incorporating, on the internal side 20b of the cover 20, a circumferential rib 23a that bears against the open end 10b of the casing 10, when closing the cover 20 in housing 10
    [0052] As illustrated in Figure 8, the peripheral region 23 of the plate 21 is provided with at least one advance element 24, configured to engage a respective locking element 14 provided at the open end 10b of the tubular housing 10 , allowing the Plate 21 is rotationally locked against tubular housing 10 when supported, and advanced, against open end 10b of tubular housing 10.
    [0054] In the illustrated configuration, the advance element 24 is in the form of an axial shoulder 24a, of reduced width, incorporated in the circumferential rib 23a of the peripheral region 23 of the plate 21, the locking element 14 being defined by a respective axial cut-out 14a provided at the open end 10b of the tubular casing 10, to receive the axial projection 24a of the plate 21, rotationally locking the latter in an advanced position by abutting against the open end 10b of the tubular casing 10.
    [0056] The tubular projection 22 carries, externally, at least one elastomeric sealing ring 30, which is radially compressed against the inside of the open end 10b of the casing 10, guaranteeing the tightness of the cover 20-casing 10 joint.
    [0058] The fixation of the cover 20 in the housing 10 is achieved by means of a retaining ring 50 provided with an internal thread 51 which is coupled to the external thread 11 of the open end 10b of the housing 10 and incorporating, radially and internally, a radial flange. external 52 which is supported axially against the plate 21, on the external face 20a of the cover 20.
    [0060] In this way, when the retaining ring 50 rotates in the tightening direction, with its internal thread 51 engaged with the external thread 11 of the housing 10, the external radial flange 52, of the retaining ring 50, pushes the plate 21 against the casing 10, causing the telescopic anchoring of the tubular projection 22 inside the open end 10b of the casing 10, as best illustrated in Figures 5 and 5a and also the engagement of the axial projection 24a in the axial cutout 14a of the open end 10b of tubular housing 10, rotationally locking plate 21 in tubular housing 10.
    [0062] The retaining ring 50 has at least one locking element 55 that mates with a locking receiving element 25 provided in the cover 20, definitively and rotationally locking the retaining ring 50 on the plate 21 and, consequently, on the casing 10, when the cap 20 is fully pressed against the casing 10 the retaining ring 50 is screwed onto the outer end 10b of the tubular casing 10.
    [0063] In the configuration illustrated in Figures 6 and 7, multiple locking receptor elements 25 are provided that take the form of a circular alignment of projections 25a incorporated in plate 21, on an external face 20a of cover 20, while respective locking elements 55 take the form of a similar alignment of cutouts 55a provided with the outer radial flange 52 of the retaining ring 50, on their face opposite the cap 20, the cutouts 55a are dimensioned to each receive a respective shoulder 25a of plate 21 upon completion of tightening of retaining ring 50. With this configuration, when installing shoulders 25 of plate 21 in cutouts 45 of retaining ring 50, with axial shoulder 24a of plate 21 already inserted In the respective axial cutout 14a of the tubular housing 10, the retaining ring 50 can no longer be freely rotated towards the mating release of its internal thread 51 with respect to the external thread 11 of the carc handle 10.
    [0065] While retaining ring 50 functions as a tamper-evident seal for the CX optical box, it is constructed with at least one weakened radial region 56 (Figures 4 and 7), to allow breakage in this region, to open the finished optical box, if any fault or irregularity is detected in its manufacture and assembly. In this way, the housing 10, the lid 20 and the internals already installed within the housing can be used.
    [0067] As mentioned, the illustrated CX optical box is constructed to function simultaneously as a branch box and a termination box, with its plate 21 provided with an inlet port FE, a plurality of outlet ports FS, a port port. below FC and a pressurization port OP, whose functions will be described below.
    [0069] The input port FE is mounted in a watertight manner in an input adapter AE having an outer end to which an input connector CE can be coupled, preferably by pre-connectorization, to the end of an optical distribution cable CD that can be made up of a single optical fiber or multiple optical fibers.
    [0071] At an internal end of the input adapter AE, a link connector CL is coupled, preferably through pre-connectorization, of at least one section of optical fiber EFO that can be represented by a single fiber optic section of an optical fiber cable. "monofiber" CD distribution, as illustrated, or a length of one of the optical fibers of a "multi-fiber" CD distribution cable, said CD distribution cable provides a predetermined optical power.
    [0073] The optical fiber section EFO is led, inside the tubular casing 10, to a respective input splitter device DE, where it is divided into a continuity fiber FC and an optical fiber termination FT, with unbalanced optical powers, being the fiber optic termination FT conducted, with or without fusion splicing EF of intermediate cabling, to an output splitter device DS, where it is divided into multiple user optical fibers FU, each one of them is selectively connectable, by connectorization, preferably by pre-connectorization, to the respective connectors C, at the internal ends of the respective outlet adapters AS, mounted, in a watertight manner, in the respective outlet holes FS provided in the plate 21 of the cover 20, as illustrated , schematically, in figure 2. At the external ends of the AS output adapters, the C connectors are connected, generally by pre-connectorization, at the ends of the res pective CT user terminal cables. The user optical fibers FU can have equal or unbalanced optical powers, to provide different connection points of users with different optical power demands. Meanwhile, the FT terminating fiber optic generally has lower optical power than that of the FC continuation fiber optic and is scaled according to the needs of the users to be satisfied and the topology of the fiber optic network.
    [0075] The number of splitter devices for input DE and output DS can vary depending on the construction characteristics of the distribution cable CD and also on the number of adapters AS that will be arranged through the cover 20 of the optical box CX.
    [0077] As schematically illustrated in Figure 2, the FC continuation fiber optic, released from the DE input splitter device, is preferably pre-connectorized with a C connector which is coupled to an AC continuation adapter provided in a port hole. FC continuation of plate 21 of cover 20. At an external end of the AC continuation adapter, a C connector is connected, generally by pre-connectorization, to the end of a DC continuation cable to go to an optical drop box CX or next termination in the network or bus of optical boxes.
    [0078] In the configuration example, the AE input adapter and the AS output adapters of the optical branch and termination boxes and the AC continuation adapter of the optical branch boxes, have any suitable configuration, passing, in a watertight manner, through the respective through hole of the plate 21 of the cover 20. Thus, when the retaining ring 40 is completely screwed into the open end 10b of the casing 10, the latter is completely sealed by the cover 20, which can no longer be removed of the tubular casing 10, except for the rupture of the weakened radial region 46 of the retaining ring 40.
    [0080] The tubular housing 10 is designed to operate in a totally hermetic manner after mounting the cover 20 against the open end 10b of the housing 10, with the cover 20 carrying the inlet adapter AE, the outlet adapters AS, and the continuation adapter. AC, the latter being generally provided only in the optical junction boxes.
    [0082] Once the installation of the CX optical box is finished, with the cover 20 already sealed against the tubular housing 10, the CX optical box, already hermetically closed, can be pressurized with a suitable gas that is introduced into it by means of a pressure valve. pressurization mounted through a respective pressurization port OP provided in plate 21 of cover 20, as illustrated in Figures 1, 5 and 6.
    [0084] The present optical box is of the type that further comprises a tray 40, made of an electrically non-conductive material, for accommodating EFO optical fiber, FT terminating optical fibers, FU user optical fibers, FC continuation optical fiber, and the input DE and output DS dividers inside the optical box CX, the tray 40 being housed inside the tubular casing 10 when the latter is fixed to the cover 20. The tray 40 has a first end 41, for bearing internally against the closed end 10a of the tubular housing 10, and a second end 42 mounted on the inner side 20b of the lid 20, to move when sealing the lid 20 at the open end 10b of the tubular housing 10.
    [0086] As mentioned, when the optical box CX is used as the optical termination box, the plate 21 of the cover 20 can be constructed with only "n + 1" through holes, the holes being "n" exit holes FS, each one of which receives and holds a respective AS output adapter for each user CT terminal optical cable and a hole
    [0089] FE input to receive and hold the AE input adapter. In this case, the cap 20 need not have the continuation hole FC.
    [0091] However, for the CX optical boxes with bypass function, the plate 21 of the cover 20 has "n + 2" holes, to mount "n" AS output adapters, the AE input adapter and an AC continuation adapter. into a respective FC continuation hole, while a DC continuation optical cable is attached to the outer end of the AC continuation adapter.
    [0093] It should be understood that the number "n" of AS output adapters in cap 20 may vary depending on the configuration of the DS output splitter devices and in addition to the network topology in which the CX optical boxes will be installed and dimensional limitations of the lid 20 of said CX optical boxes.
    [0095] Although an embodiment of the invention has been described, it should be understood that modifications may be made regarding the shape and arrangement of the different component parts of the optical box, involved in the derivation and termination of the optical fibers of an optical cable. distribution, all within the scope defined by the claims attached to this specification.
    权利要求:
    Claims (11)
    [1]
    1. Optical junction or termination box of an optical cable in a fiber optic network, comprising a tubular casing (10), which has a closed end (10a) and an open end (10b) against which it rests and is fixed hermetically a lid (20), characterized in that the open end (10b) of the tubular casing (10) is provided with an external thread (11) and a locking element (14), the lid (20) being provided with a blocking receiving element (25) and an advance element (24) that is coupled to the blocking element (14), rotationally blocking the cover (20) against the open end (10b) of the tubular casing (10), which It has a retaining ring (50) with an internal thread (51), which engages the external thread (11) of the casing (10), and at least one locking element (55) that engages with the element blocking receptor (25) of the cover (20), definitively and rotationally blocking the retaining ring (50) with respect to the cover (20) and the casing (10), when do, by means of the retaining ring (50), the cover (20) is pressed against the open end (10b) of the casing (10); the cover (20) being traversed, in a watertight manner, by an input adapter (AE), which can be coupled from the outside of the housing (10), an input connector (CE) of an optical distribution cable (CD) with one or more optical fibers, and by output adapters (AS), each of which can be coupled to a connector (C) provided on a respective user terminal (CT) cable.
    [2]
    2. Optical box, according to claim 1, characterized in that the cover (20) incorporates a tubular projection (22) that is telescopically mounted inside the open end (10b) of the housing (10), having at least a sealing ring (30) radially compressed between the tubular projection (22) and the interior of the open end (10b) of the housing (10).
    [3]
    Optical box, according to any of claims 1 or 2, comprising a fiber optic housing tray (40) mounted on an internal side (20b) of the cover (20) and internally supported against the closed end ( 10a) of the tubular casing (10), characterized in that the input adapter (AE) is coupled inside the tubular casing (10) to a link connector (CL) of at least one fiber optic section (EFO) defined by an optical fiber of the distribution cable (CD), while the tray (40) houses an output splitter device (DS) in which a terminating optical fiber (FT), which contains all or only an unbalanced part of the optical power of the fiber optic section (EFO), is divided into balanced or unbalanced mode, in user optical fibers (FU), each of which receives a connector (C) coupled to a respective output adapter (AS), inside the tubular casing (10).
    [4]
    4. Optical box, according to claim 3, characterized in that the termination optical fiber (FT), in a termination optical box (CX), is a continuation of the optical fiber section (EFO), which has the same optical power than the latter.
    [5]
    5. Optical box, according to any of claims 3 or 4, characterized in that, in an optical junction box (CX), the tray (40) also houses an input divider device (DE) into which an input divider device (DE) is divided. fiber optic run (EFO), in unbalanced mode, into a continuation fiber optic (FC) and a terminating fiber optic (FT) that is conducted, with or without EF fusion splicing of intermediate cabling to the output splitter device ( DS), while the cover (20) is traversed, in a watertight manner, by a continuation adapter (AC) that receives, inside the tubular casing (10), a continuation fiber optic connector (C) ( FC) and, outside of the tubular casing (10), a connector (C) provided at the end of a respective continuation cable (CC) that goes to a subsequent branch or termination optical box (CX).
    [6]
    6. Optical box, according to any of claims 2 to 5, characterized in that the cover (20) is defined by a plate (21) that incorporates a tubular projection (22) and is provided with: outlet holes (FS) to mount the outlet adapters (AS); an inlet hole (FE) for mounting the inlet adapter (AE); and a continuation hole (FC) for mounting the continuation adapter (AC) of a bypass optical box (CX), while the retaining ring (50) incorporates, internally, an external radial flange (52) that abuts axially against the plate (21), on the external face (20a) of the cover (20), pressing the latter against the open end (10b) of the tubular casing (10) and generating the telescopic coupling of the tubular projection ( 22) inside the open end (10b) of the casing (10), as the internal thread (51) of the retaining ring (50) is screwed into the external thread (11) of the tubular casing (10).
    [7]
    7. Optical box, according to claim 6, characterized in that multiple locking receptor elements (25) are provided that take the form of circular alignment of projections (25a) incorporated in the plate (21), on an external face (20a) of the cover (20), while the
    1
    respective locking elements (55) take the form of an equal alignment of cutouts (55a) provided on the outer radial flange (52) of the retaining ring (50), on its face facing the cover (20), each cut-out ( 55a) is dimensioned to receive a respective projection (25a) of the plate (21) upon completion of the tightening of the retaining ring (50).
    [8]
    8. Optical box, according to any of claims 6 or 7, characterized in that the plate (21) of the cover (20) also has a pressurization orifice (OP) to mount a pressurization valve (V) of the tubular casing (10), by closing its open end (10b) with the cover (20).
    [9]
    Optical box, according to any of claims 6 to 8, characterized in that the plate (21) has a peripheral region (23), radially external to the tubular projection (22) and incorporating, on the internal side (20b ) of the lid (20), a circumferential rib (23a) that bears against the open end (10b) of the casing (10), when the lid (20) is closed on the casing (10).
    [10]
    10. Optical box, according to claim 9, characterized in that the advance element (24) has the form of an axial projection (24a) incorporated in the circumferential rib (23a) of the peripheral region (23) of the plate (21) , the locking element (14) being defined by a respective axial cut-out (14a) provided in the open end (10b) of the tubular casing (10), to receive the axial projection (24a) of the plate (21).
    [11]
    Optical box, according to any of claims 1 to 10, characterized in that the retaining ring (50) has at least one weakened radial region (56), to break the retaining ring (50).
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    同族专利:
    公开号 | 公开日
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    CO2021008782A2|2021-09-30|
    GB202110383D0|2021-09-01|
    WO2020132732A1|2020-07-02|
    DE112019006535T5|2021-09-16|
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    BR102018077418A2|2020-07-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5097529A|1991-03-22|1992-03-17|At&T Bell Laboratories|Space-saving optical fiber cable closure|
    US5793921A|1995-03-20|1998-08-11|Psi Telecommunications, Inc.|Kit and method for converting a conductive cable closure to a fiber optic cable closure|
    US5892872A|1997-07-17|1999-04-06|Northern Telecom Limited|Network unit enclosure|
    US6385381B1|1999-09-21|2002-05-07|Lucent Technologies Inc.|Fiber optic interconnection combination closure|
    US6778752B2|2002-05-31|2004-08-17|Corning Cable Systems Llc|Below grade closure for local convergence point|
    BR102016029000A2|2016-12-09|2018-07-17|Furukawa Ind S A Produtos Eletricos|optical termination box|
    法律状态:
    2021-07-26| BA2A| Patent application published|Ref document number: 2845211 Country of ref document: ES Kind code of ref document: A2 Effective date: 20210726 |
    优先权:
    申请号 | 申请日 | 专利标题
    BR102018077418-2A|BR102018077418A2|2018-12-28|2018-12-28|optical junction box or termination of an optical cable in an optical fiber network|
    PCT/BR2019/050562|WO2020132732A1|2018-12-28|2019-12-23|Branching or termination optical box for an optical cable in an optical-fiber network|
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