• 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 box (CX) comprises: a tubular housing (10) with an open end (10b) and a closed end (10a) having an input opening (11); a cover (20) that can be fastened to the open end (10b); and a tray (40). An input adapter (AE) is mounted in the input opening (11) to couple an input connector (CE) of an optical distribution cable (CD) and a link connector (CL) of at least one optical fibre extension (EFO) of the distribution cable (CD). The tray (40) houses an output splitter device (DS) for splitting an optical termination fibre (FT) into user optical fibres (FU), in which the cover (20) is traversed by output adapters (AS), each of which receives a connector (C) of a user optical fibre (FU) and a connector (C) provided at the end of a user terminal cable (CT).
    公开号:ES2841451A2
    申请号:ES202190030
    申请日:2019-12-11
    公开日:2021-07-08
    发明作者:Michael Kulczynskyj；Anderson Marcelo Stancyk
    申请人:Furukawa Electric LatAm SA；
    IPC主号:
    专利说明:

    [0004] Field of the invention
    [0006] [001] The present invention relates to a hermetic optical junction or termination box, of a type having a housing provided with an inlet opening, for receiving and retaining an optical distribution cable formed by one or more optical fibers, being the housing provided with an exit opening that is closed by a sealed cover and provided with exit adapters, each of which has an internal end, connectable to a fiber or fiber split of the optical distribution cable by means of unbalanced splitters and / or balanced, and an external end adapted to receive a connector of a respective terminal optical cable of a user.
    [0008] Previous technique
    [0010] [002] Applicant's patent application BR 10 2016 029000-7 describes an optical termination box that has multiple outputs for connecting multiple user terminal optical cables from an optical distribution cable to be received in said boxes.
    [0011] [003] In this prior construction, 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 sections of the optical fiber 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.
    [0012] [004] The above construction 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 one or more Optical distribution cable fibers, with box lid outlet adapters, executed by the installation operator outside the termination box installation site and before the lid is closed against the box, preventing movement of the internal elements that house the fiber optic sections inside the termination box and the movement of the optical components as a consequence of vibrations or impacts.
    [0014] Summary of the invention
    [0016] Despite the constructive and operational advantages achieved with the optical termination box developed by the applicant and described in patent application BR 102016 029000-7, it can also be equipped with means that allow its operation not only as an optical termination box, but also as an optical junction box, with the capacity to receive a distribution cable or wiring, which contains one or multiple optical fibers, with balanced or unbalanced outputs, or part of the multiple optical fibers of the distribution cable, which terminate inside the box, so that each fiber or fiber division terminated in the box can be connected to a respective user terminal cable, as long as the rest of the divisions of the fiber or the other optical fibers of the distribution cable, do not terminate inside the box, leaving through a respective outlet adapter, to go to another bypass and / or optical termination by means of a continuation cable or wiring.
    [0017] [006] In accordance with the improvement herein, it is also possible to use the optical termination box, which has the advantageous characteristics described in patent application BR 10 2016 029000-7, as an optical branch box, allowing, in case If it is desirable and convenient, 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 the terminating optical box.
    [0019] Brief description of the drawings
    [0021] [007] The invention will be described below by way of example with reference to the attached drawings, in which:
    [0022] [008] Figure 1 is an enlarged perspective view of an optical box, which functions as a branch box and receives, by means of an input adapter, an optical distribution cable formed, in this example, by a single optical fiber that is divided into user optical fibers, which terminate in the optical box, to be connected, each one, with a respective user terminal cable, and a continuation optical fiber, which does not terminate inside the box, leaving of the latter through a respective continuation adapter, to be directed to another derivation and / or optical termination box, by means of a continuation cable or wiring;
    [0023] [009] Figure 2 illustrates a bottom plan view of the enlarged assembly illustrated in Figure 1;
    [0024] [010] Figure 3 illustrates an enlarged longitudinal sectional view of the closed end region of the tubular housing of the optical box of Figures 1 and 2, illustrating mounting of the inlet adapter in an inlet opening of the housing of the optical box;
    [0025] [011] Figure 4 illustrates a perspective view of the cover of the optical bypass box, seen from the outside, illustrating the mounting, in the respective holes of the cover of: the outlet adapters, the outer end of each of which receives a user terminal cable; a check valve for pressurizing the sealed box; and a continuation adapter, to receive at its inner end, the split and unterminated optical fiber in the optic box and, at its outer end, a continuation cable or wiring that is routed to another optic, branch or termination box ;
    [0026] [012] Figure 5 illustrates a perspective view of the cover of Figure 4, from the inside, and shows the connection of a user optic fiber to the inner end of an outlet adapter and also that of the continuation fiber optic to the inner end of the continuation adapter; Y
    [0027] [013] Figure 6 illustrates a perspective view, partially cut away, illustrating the coupling means for locking the closed end of the optical box.
    [0029] Description of the invention
    [0031] [014] As indicated and illustrated in the attached drawings, the present invention is applied to a hermetic CX optical box, of the type that presents a tubular casing 10, generally frusto-conical, without being limited to this configuration, and made of any material suitable for outdoor installation, for example, polypropylene, which has a closed end 10a, generally of smaller cross section, and an open end 10b, opposite the first one of greater cross-section, which is closed by a cover 20, preferably sealed and made of a suitable polymer with an outer side 20a and an inner side 20b that is fixed against the open end 10b of the tubular housing 10. The cover 20 is provided with through holes (not illustrated), the function of which will be described onwards.
    [0032] [015] The tubular casing 10 has its closed end 10a provided with an inlet opening 11 to receive a CD distribution optical cable that can be composed of a single optical fiber or multiple optical fibers, but connectorized, that is, it has its end provided with an inlet connector CE to be coupled to an external end of an inlet adapter AE mounted, in a watertight manner, in the inlet opening 11 of the tubular casing 10, as illustrated in figure 3.
    [0033] [016] According to the present invention, an internal end of the input adapter AE is coupled to a link connector CL, preferably through pre-connection, of at least one section of optical fiber EFO that can be represented by a section optical fiber of a "single-fiber" CD distribution cable, as illustrated, or a section of one of the optical fibers of a "multi-fiber" CD distribution cable, said CD distribution cable provides a predetermined optical power.
    [0034] [017] The section of optical fiber 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 optical powers unbalanced, the FT termination fiber optic being conducted, with or without EF fusion splicing of intermediate cabling, to a DS output splitter device, where it is divided into multiple FU user optic fibers, each one of them is selectively connectable, for connectorization, preferably by pre-connectorization, to the respective C connectors, at the internal ends of the respective output adapters AS, mounted, in a watertight manner, in the respective holes (not illustrated) of the cover 20 of the CX optical box , as illustrated, somewhat schematically, in Figures 2, 4 and 5. At the outer ends of the AS output adapters, the C connectors are connected, generally by pre-connection, in the s ends of the respective CT user terminal cables. FU user optical fibers can have equal or unbalanced optical powers, to provide different user connection points 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.
    [0035] [018] The number of input DE and output DS splitters may vary depending on the constructional characteristics of the distribution cable CD and also on the number of adapters AS that will be provided through the cover 20 of the optical box CX.
    [0036] [019] 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 that is coupled to an AC continuation adapter provided in a respective hole (not illustrated) in the cover 20 of the CX optical box. At one 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 be routed to a subsequent CX optical drop or termination box in the network or box bus. optics.
    [0037] [020] In the construction example, the cover 20 has, on its internal face, a peripheral skirt 21 to be telescopically coupled and fixed, in a watertight and sealed manner, against a peripheral portion of the open end 10b of the tubular casing 10, while each outlet adapter AS of the optical junction and termination boxes and the continuation adapter AC of the optical junction boxes, presents any suitable construction, passing, in a watertight manner, through a respective hole in the cover 20. For Therefore, when sealing (for example, with adhesive or welding) the cover 20 on the open end 10b of the tubular casing 10, this open end 10b is completely sealed by the action of the cover 20, which can no longer be removed from the tubular housing 10.
    [0038] [021] The tubular housing 10 is designed to operate in a totally hermetic manner after mounting the inlet adapter AE in the inlet opening 11 and sealing the cover 20 against the open end 10b of the housing 10, with the cover 20 with the AS output adapters and the AC continuation adapter, the latter being generally provided only in the optical branch boxes.
    [0039] [022] Once the installation of the CX optical box is finished, with the lid 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 pressurization valve 25 mounted through a respective through hole (not illustrated) in the cover 20, as illustrated in Figures 4 and 5.
    [0040] [023] The present optical box is of the type that further comprises a tray 40, made of an electrically non-conductive material, for housing EFO optical fiber, FT terminating optical fibers, FU user optical fibers, then FC 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, to be supported internally against the closed end 10a of the tubular housing 10, and a second end 42 mounted to the inner side 20b of the cover 20, to move when sealing the cover 20 in the open end 10b of the housing tubular 10.
    [0041] [024] As illustrated in Figures 1, 2 and 3, the first end 41, of the tray 40, incorporates, for example, in one piece, a tubular extension 50, also made of a plastic material and presenting a portion base 51 that bears, inside the tubular casing 10, against the closed end 10a of the latter, and a body portion 52 that projects through the inlet opening 11 and that cooperates externally with a traction device 60, operatively associated with the closed end 10a of the tubular casing 10, to keep the base portion 51 of the tubular extension 50 axially pressed, in a tight manner, against the closed end 10a of the tubular casing 10.
    [0042] [025] As illustrated in figure 3, a tubular extension 50 receives and retains, inside and in a watertight manner, the input adapter AE which is connected to the input connector CE adapted to the optical distribution cable CD or continuation CC, which contains one or more optical fibers.
    [0043] [026] Figure 3 illustrates a construction in which the closed end 10a of the tubular casing 10 has, around the inlet opening 11, an internal annular stop 13, oriented towards the interior of the tubular casing 10. On the other hand , the base portion 51 of the tubular extension 50 is externally provided with a peripheral flange 53 to be pressed, by the traction device 60 and in a sealed manner, against the annular stop internal 13 of the tubular casing 10 while the traction device 60 is supported against the closed end 10a of the tubular casing 10, on the external side of the latter. Between the peripheral flange 53 and the internal annular stop 13 there is provided at least one seal 54, generally an "O" ring, to guarantee a total and complete seal between the tubular extension 50 of the tray 40 and the end. closed 10a of the tubular casing 10.
    [0044] [027] In the illustrated construction, the body portion 52 of the tubular extension 50 is provided with an external thread 55 and the pulling device 60 is defined by a nut 61 that engages an external thread 55 of the body portion 52 and rests against the closed end 10a of the tubular casing 10. When the nut 61 is tightened, the peripheral flange 53 is pressed against the internal annular stop 13, compressing the sealing gasket 54 and ensuring the tightness of the tubular extension joint 50-casing. tubular 10.
    [0045] [028] As illustrated in figure 6, the body portion 52 of the tubular extension 50 incorporates at least one locking means 57, consisting of a nut 61 provided with at least one locking receiving means 67 to be coupled to the locking means 57, to lock the nut 61 against unlocking, once the latter reaches a final pulling position of the tubular extension 50. Thus, after the final fixing of the tubular extension 50, when the nut 61 is tightened , the latter can no longer be released, keeping the tubular extension definitely fixed to the tubular casing 10.
    [0046] [029] In the illustrated construction, the locking means 57 takes the form of an external shoulder 57a incorporated in the body portion 52 of the tubular extension 50, near the base portion 51, but external to the tubular housing 10, being locking receptor means 67 defined by cutout 67a that engages shoulder 57a, locking nut 61 in its final pulling position of tubular extension 50.
    [0047] [030] As mentioned, when the CX optical box is used as an optical termination box, the cover 20 can be constructed with only "n" through holes, each of which receives and retains a respective AS output adapter for each user terminal CT optical cable and further a hole to adapt the pressurizing valve 25. In this case, the cap 20 need not have an additional hole to the "n" receiving holes of the outlet adapters AS.
    [0048] [031] However, for the CX optical boxes with branch function, the cover 20 has not only the "n" holes, to mount, in each one, a respective AS output adapter for a user CT terminal cable and a port for the pressurizing valve 25, but also an additional port for mounting an AC continuation adapter at the outer end of which a DC continuation optical cable is attached.
    [0049] [032] It is understood that the number "n" of AS output adapters in cap 20 can be modified, considering the construction of the DS output splitter devices and also the topology of the network in which the CX optical boxes will be installed and the dimensional limitations of the cover 20 of said CX optical boxes.
    [0050] [033]
    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 of distribution, all within the scope defined by the claims appended to this specification.
    权利要求:
    Claims (11)
    [1]
    An optical junction or termination box, comprising: a tubular housing (10), having an open end (10b) and a closed end (10a) and provided with an inlet opening (11); a cover (20) that can be sealed, against the open end (10b) of the housing (10); and a fiber optic housing tray (40), mounted inside the cover (20) and supported internally against the closed end (10a) of the tubular casing (10), the optical box (CX) is characterized in that, in the inlet opening (11) of the tubular casing (10), an inlet adapter (AE) is mounted, tightly sealed, to which an inlet connector (CE) can be attached from the outside of the tubular casing (10) of a distribution optical cable (CD) formed by one or more optical fibers and, inside the tubular casing (10), a link connector (CL) of at least one optical fiber 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) that contains all or only an unbalanced portion of the optical power of the optical fiber (EFO) is divided, in a balanced or unbalanced way, into "n" user optical fibers (FU), the cap (20) is at raveled in a watertight manner by the outlet adapters (n) "AS", each of which receives inside the tubular casing (10) a connector (C) of a respective user optical fiber (FU) and, outside the tubular casing (10), a connector (C) provided at one end with a respective user terminal cable (CT).
    [2]
    2. The optical box, according to claim 1, characterized in that the optical fiber termination (FT), in an optical termination box (CX), is a continuation of a section of optical fiber (EFO), which has the same optical power as that.
    [3]
    The optical box, according to any of claims 1 or 2, characterized in that, in an optical junction box (CX), the tray (40) also houses an input divider device (DE) in which the Optical fiber section (EFO) is divided, in an unbalanced way, into a continuation optical fiber (FC) and into a terminating optical fiber (FT) that is conducted, with or without EF fusion splicing of intermediate cabling to the splitter device outlet (DS), while the cover (20) is traversed, in a watertight manner, by a continuation adapter (AC) that receives, inside the tubular casing (10), a fiber optic connector (C) continuation cable (FC) and, outside the tubular casing (10), a connector (C) provided at the end of a respective continuation cable (CC) to be routed to a next branch or termination optical box (CX) .
    [4]
    4. The optical box, according to any of claims 1, 2 or 3, characterized in that the cover (20) is traversed by a pressurization valve (25) of the tubular casing (10) when closing the inlet opening ( 11) and its open end (10b).
    [5]
    5. The optical box, according to any of claims 1 to 4, characterized in that the cover (20) has a peripheral skirt (21) to be telescopically mounted and fixed, in a watertight and sealed manner, against a peripheral portion of the end open (10b) of the tubular casing (10).
    [6]
    6. The optical box, according to any of claims 1 to 5, characterized in that the first end (41) of the tray (40) incorporates a tubular extension (50) that has a base portion (51) to be supported, inside the tubular casing (10), against the closed end (10a) of the latter, and a body portion (52) projecting through the inlet opening (11) and externally cooperating with a traction device (60) operatively associated with the closed end (10a) of the tubular casing (10), keeping the base portion (51) of the tubular extension (50) axially pressed, in a sealed manner, against the closed end (10a) of the tubular casing (10 ), said tubular extension (50) receives and retains, inside and in a watertight manner, the input adapter (AE) which is connected to the input connector (CE) adapted to the optical distribution cable (CD) or continuation (CC), which contains one or more optical fibers.
    [7]
    The optical box, according to claim 6, characterized in that the closed end (10a) of the tubular casing (10) has, around the inlet opening (11), an internal annular stop (13), oriented towards The interior of the tubular casing (10) and the base portion (51) of the tubular extension (50) is externally provided with a peripheral flange (53) to be pressed, by the traction device (60) and in a sealed manner, against the internal annular stop (13) of the tubular casing (10) and the traction device (60) resting against the closed end (10a) of the tubular casing (10), on the external side of the latter.
    [8]
    8. The optical box, according to claim 7, characterized in that it is provided with a sealing gasket (54) between the peripheral flange (53) and the internal annular stop (13).
    [9]
    The optical box, according to any of claims 7 or 8, characterized in that the body portion (52) of the tubular extension (50) is provided with an external thread (55), the pulling device (60) being defined by a nut (61) to be coupled to the external thread (55) of the body portion (52) and which will bear against the stop
    1
    external annular (13) of the closed end (10a) of the tubular casing (10).
    [10]
    The optical box, according to claim 9, characterized in that the body portion (52) of the tubular extension (50) incorporates at least one locking means (57), the nut (61) being provided with by at least one locking receiving means (67) to be coupled with the locking means (57), locking the nut (61) against unlocking, after having reached a traction position of the tubular extension (50).
    [11]
    The optical box, according to claim 10, characterized in that the blocking means (57) takes the form of an external shoulder (57a) incorporated in the body portion (52) of the tubular extension (50), near of the base portion (51), but externally to the tubular casing (10), the locking receiving means (67) being defined by a cutout (67a) that engages the shoulder (57a), locking the nut (61) in its final position of traction of the tubular extension (50).
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    同族专利:
    公开号 | 公开日
    DE112019006141T5|2021-08-19|
    CO2021008981A2|2021-10-20|
    GB202109388D0|2021-08-11|
    ES2841451R1|2021-11-15|
    BR102018075693A2|2020-06-23|
    AR117305A1|2021-07-28|
    GB2594014A|2021-10-13|
    MA53693A1|2021-10-29|
    WO2020118402A1|2020-06-18|
    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:
    2021-07-08| BA2A| Patent application published|Ref document number: 2841451 Country of ref document: ES Kind code of ref document: A2 Effective date: 20210708 |
    2021-11-15| EC2A| Search report published|Ref document number: 2841451 Country of ref document: ES Kind code of ref document: R1 Effective date: 20211105 |
    优先权:
    申请号 | 申请日 | 专利标题
    BR102018075693-1A|BR102018075693A2|2018-12-11|2018-12-11|OPTICAL DERIVATION OR TERMINATION BOX|
    PCT/BR2019/050534|WO2020118402A1|2018-12-11|2019-12-11|Branching or termination optical box|
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