RU202124U1 - Optical splitter module housing - Google Patents

Abstract

The utility model relates to communication technology and is intended for use in devices of an optical communication network in residential multi-storey buildings, for placement in optical cable sleeves, optical distribution boxes and other equipment. The housing of the module is intended primarily for connecting and distributing internal fiber-optic communication cables to the general network of the provider. The housing of the optical splitter module contains a cover, a base with a bottom, front, rear and side walls, while openings are made in the front wall for installing adapters for optical cable connectors. the output of the optical splitter, and near the rear wall at the base of the housing there is a fastening element for the optical splitter. The rear wall of the housing base has an angular ledge located on the side of the input cord of the optical splitter, in the ledge there is an opening for the cover protrusion, in which a passage is made for input-output of the input-output cord of the optical splitter, while along the junction of the bottom with the side wall located on the side of the opening , a recessed groove is made for laying the optical fiber of the input cable of the optical splitter. The technical result of the utility model presented in this description is to reduce the labor intensity of installation work by simplifying the process of laying the input optical cable of the splitter output from the base of the device. 11 ill.

Description

The housing of the optical splitter module belongs to fiber-optic communication lines, it is intended for use mainly in distribution terminals providing subscribers with access points to the optical communication line, and in this regard, the housing is intended to accommodate optical signal distribution components in such optical networks that allow the use of a continuous range wavelengths in the range of 1260-1650 nm. The housing can be used separately from other optical splitter units (modules), as well as in conjunction with them, forming modular splitter terminals. The module case refers to communication technology and can be used in devices that are used in the construction of a communication network in residential multi-storey buildings, such modules can be placed in sleeves for optical cables, optical distribution boxes, in other communication equipment, or can be connected to internal fiber distribution devices -optical communication cables of the provider's common network.

Known modular optical splitters containing a housing and located in it components of the splitters (Product Catalog 2015, issue 2. ZAO Svyazstroydetal).

Known cases of optical splitter blocks used separately or as part of other similar cases of modular design, or as part of terminals formed by a plurality of optical splitter modules (RU 171105 U1, 05/22/2017. RU 2717137 C1, 03/18/2020. RU 2624405 C2, 03.07 .2016. RU 2556868 C1, 20.07.2015. CN 210376813 U, 2020-04-21. KR 20150093943 A, 2015-08-19. JP 2020522747 A, 2020-07-30. US2016313528 A1, 2016-10-27. CN211206900 U, 2020-08-07. DE 102009008068 A1, 2010-08-19. US2006165366 A1, 2006-07-27. JP 201012597 A, 2010-06-03. US 77660984 B2, 2010-07-20. US 2007189692 A1, 2007-08-16).

Known is a fiber-optic distribution terminal containing an interfloor cable, a base defining a channel through which an interfloor cable can be inserted, while the channel defines a wiring section where access to the interfloor cable's fiber optic cable is provided and where it can be brought to the base, while the base contains an attachment area made with the possibility of fixing the fiber-optic base adapter, while the fiber-optic base adapter is located in the base attachment area, while the short flexible lead is spliced with the fiber-optic fiber of the interfloor cable by a permanent connection in the base cable area, while the short flexible lead contains an end with a connector, inserted into one of the ports of the fiber optic adapter of the base, while the output connector is configured to be connected to the end with the short flexible output connector through the fiber optic adapter of the base to provide an outlet for servicing an individual subscriber, while the splitter is complete with the ability to be used as an output connector, while the splitter contains several outputs, each of which contains a fiber-optic output connector connected to the fiber-optic base adapter, while the splitter contains an input containing a fiber-optic input connector for insertion into the fiber-optic base adapter (RU 170725 U1 , 05/04/2017).

A splitter is known that contains a splitter body having a front and a rear part, the rear part being parallel to the front part and is configured to be mounted on a fiber-optic distribution terminal, while the splitter has a plurality of outputs located in the front part and containing fiber-optic output adapters located in splitter body and oriented to run substantially parallel to the front, the splitter has an input located at the rear and containing a fiber optic input connector located in the splitter body and oriented to run parallel to the rear, the input protruding from the rear surface and located for mating with the connector of the fiber-optic distribution terminal in the position when the splitter body is mounted on the fiber-optic distribution terminal, while the input and output are oriented in opposite directions (RU 181686 U1, 26.07.2018).

Known is a device for feeding optical fiber into a house, containing a splice means, an optical signal separation module, while in the splice area, an optical cable input, an optical cable output, a splice point and an adapter are deployed, the splitting module includes an access point, a separator and N output ports , where N is a positive integer, not less than two, while the separation module is installed above the splice area by connecting the external port of the access point to the external port of the adapter, and when the fiber feed device is installed in the house, the optical cable is sequentially passed through the optical cable input and optical output cable, and the optical cable crosses the splice area, and then the first fiber of the optical cable is separated from the part of the optical cable between the inlet of the optical cable and the outlet of the optical cable; wherein the first fiber is spliced with the first end of the second fiber for entering the house using a splice point, and the second end of the second fiber is connected to the internal port of the adapter, while the internal port of the access point is connected to the first end of the third fiber for entering the house, the first end of the splitter is connected with the second end of the third fiber, the second end of the separator is connected to the first end of each of the fourth fibers for supplying the house, and each of the output ports is connected to the second end of each of the fourth fibers (RU 2624405 C2, 03.07.2017). This device is mounted in an optical splitter module case, which contains a base with a bottom, front, rear and side walls, and a cover, and the case has openings for installing optical connector adapters of the output ends of the optical splitter.

The closest to the module case presented in this description is a well-known splitter module, the design of which consists of a quick-detachable base, closed with a lid and having fastening elements, where an optical splitter with a division ratio of 1: 4 or 1: 8 is installed, the splitter is terminated on both sides with optical fiber with optical connectors, while the module has adapters that serve to connect consumers in the event of an increase in the subscriber base, also an adapter or for input of an optical signal, and the module components are mounted in a housing that consists of a base, a cover, at least one optical splitter, dividing the input optical signal into several output signals, in particular into four or eight signals, while the module has optical connectors that transmit the optical signal through adapters to the addresses of subscribers, an adapter and an optical connector, which serve to input an optical signal through a patchcord or by means of a pigtail , and the signal is introduced into the base through the module input and fed to the optical splitter (RU 2556886 C1, 20.07.2015 - prototype).

For quick removal and installation of the module in the place of operation, a fastening element is used, combined with the base.

In the prototype, the components of the module are mounted in the housing of the optical splitter module, which has common features with the utility model presented in this description. These features include: the case of the optical splitter module, containing a base with a bottom, front, rear and side walls, and a cover, while openings are made in the front wall of the base for installing adapters for optical connectors of the output ends of the optical splitter, and near the rear wall at the base is made socket for placing an optical splitter.

In the prototype according to the patent RU 2556886 C1 there is a slot for withdrawing the input cord of the optical splitter from the housing, which is located in the front wall of the module housing. If the optical splitter is placed in a limited space, the module case does not provide the standard bending radius of the optical fiber of the optical splitter input cord when it is removed from the case through the specified slot, since the optical cord must be bent outside the splitter case dimensions. At the same time, when leaving the module case, the cord is not protected from damage and, if handled carelessly, can be damaged during installation. These disadvantages lead to a relatively large amount of time and labor intensity for installation work.

The technical result of the utility model presented in this description is to reduce the labor intensity of installation work by simplifying the process of laying the splitter input optical cable coming out of the base of the device.

The technical result is obtained by a housing of an optical splitter module containing a cover, a base with a bottom, front, rear and side walls, while openings are made in the front wall for installing adapters of optical connectors for the output cords of the optical splitter, and a fastening element is made near the rear wall, at the base optical splitter, and the rear wall of the housing base has an angular ledge located on the side of the input cord of the optical splitter, in the ledge there is an opening for the lid protrusion, in which a passage is made for input-output of the input cord of the optical splitter, while along the junction of the bottom with the side wall, located on the side of the opening, a recessed groove is made for laying the optical fiber of the input cable of the optical splitter.

Figure 1 shows a perspective view of the body of an optical splitter module with a longitudinal groove in the bottom, top view.

Fig. 2 is a top view of an optical splitter module body.

Fig. 3 is a perspective view of the housing base, top view.

Fig. 4 is a perspective view of the housing cover, top view.

Fig. 5 is a perspective view of the optical module body, bottom view.

Figure 6 is a perspective view of the module body, bottom view.

Figure 7 is a bottom perspective view of the housing cover.

Fig. 8 shows the module case in the operating position, in the longitudinal groove of which the input cord of the optical splitter is located.

Fig. 9 shows the module case in the working position, the optical splitter input cord in the pre-assembly free position.

10 shows a plurality of optical splitter modules, the cases of which are interconnected to form an optical splitter terminal (the ends of the optical splitters are located in the straight grooves of the cases).

FIG. 11 - module housing assembled with a splitter mounted in it, output and input cords of the splitter and adapters (the case cover is removed).

In order to facilitate finding the positions indicating the locations of the housing elements in the drawings, below is a list of the names of the housing elements, the serial numbers of which indicate the position numbers in the drawings and in the text of the description of the utility model.

1. Base of the module housing.

2. The bottom of the base.

3. Opening for installing optical adapters.

4. Hole for fasteners.

5. Positioning element of the housing.

6. Front wall of the base.

7. Right side wall of the base.

8. Left side wall of the base.

9. Back wall of the base.

10. Straight groove in the bottom of the base.

11. Element for fastening the cover latch to the base.

12. Corner ledge with a base opening.

13. Fixing element of the splitter at the base.

14. Cover of the module housing.

15. The element for fastening the cover to the body.

16. Cover positioning element.

17. Shaped lid protrusion.

18. Hole in the cover for the input / output of the optical splitter cord.

19. Optical cord for the input of an optical splitter.

20. Connector for the input cable of the optical splitter.

21. Adapter.

22. Optical splitter output cord connector.

23. Optical splitter output cords.

24. Optical splitter.

The housing of the optical splitter module includes a base 1 (Fig. 1) a cover 14 (Fig. 5), the base being formed by a bottom 2 (Fig. 1), a front wall 6 with openings 3 in it for installation in the openings of the adapters 21 of optical connectors, a rear wall 9 (Fig. 2) with adjacent elements 13 (Fig. 3) for fastening the splitter, and the base 1 of the body has two side walls 7 and 8.

In the bottom 2 of the base 1 (Fig. 1) holes 4 are made for fastening elements of the housing, and on the upper surface of the bottom there are positioning elements 5 of the housing. On the side walls 7 and 8 of the base there are elements 11 for fastening the latches of the cover 14 (Fig. 4). Between the side wall 7 (Fig. 3) and the rear wall 9 of the base, an angular ledge 12 is made with an opening in the base, into which the shaped protrusion 17 (Fig. 5) of the cover 14 enters when it is closed. On the outer surface of the cover 14, the positioning elements 16 (Fig. 4) of the cover are made. On the side surfaces of the cover 14, latches 15 are placed. On the shaped protrusion 17 of the cover 14 (Fig. 5) there is an opening 18 to provide the passage of the cord 19 (Fig. 11) for the outlet of the splitter 24.

In the bottom 2 of the base 1 at the junction of the bottom 2 and the side wall 7 (Fig. 1), a longitudinal straight groove 10 (Fig. 2) is made parallel to its plane, the bottom of which has a rounded shape. The groove 10 is deepened in the wall 7 of the bottom and at the same time the groove is bordered by the angular ledge 12 (Fig. 2 and Fig. 5), oriented towards the rear wall 9 and the hole 18 of the cover 14. The hole 18 serves to lead the cord 19 of the splitter entrance out of the housing ... The cord 19 in the working position is bent in the area of the corner ledge 12 with a standard bend radius. In the recess of the bottom groove 10, the cord 19 is located longitudinally in a straight groove 10 (Fig. 8). This ensures a safe bend radius of the cord 19 within the dimensions of the body, which prevents damage during installation work.

The housing of the module for the optical splitter is designed to accommodate an optical splitter 24 (Fig. 11), at the ends of the input cords 19 and outputs 23 of which connectors (sockets) 20 and 22 are installed, respectively. The connectors of the cords of the output 22 of the splitter 24 are connected to the optical adapters (sockets) 21. The cord 19 of the input of the splitter is brought out through the corner ledge of the base 12 through the hole 18 in the housing cover 14. The adapters 21 (sockets) are placed in a row in the openings 3 made in the front wall 6 the base of the housing 1. An optical signal is transmitted to the input of the optical splitter through a cord 19 and is transmitted to the devices of the signal consumers through the cords 23 through adapters 21.

Optical splitter 24 (Fig. 11) is installed inside the base 1 of the module housing in special fastening elements 13, the cords 23 of the output of the splitter 24 are lined with loops in the cavity of the base 1 in compliance with the standard bending radius and are connected to the adapters 21 through connectors 22. In the working position of the housing, the base 1 is closed by a removable cover 14, which are connected by cover elements 11 and 15 to the base of the body. The cord 19 of the input of the splitter is led out through the side opening 18 (Fig. 7) of the projection 17 of the cover 14 and is terminated with a connector 20.

The design of the case of the optical splitter module assembled with the splitter and adapters allows it to be used as a separate element of the cable network, and in the form of assembled blocks of cases (terminals). When assembling the bodies into blocks, a direct exit of the cord 19 in the groove 10 is possible. In this case, due to the fact that the cords 19 are completely recessed in the groove 10, a compact assembly of the blocks is achieved and damage to the cords is avoided.

The assembly of the enclosures into terminal blocks is performed as follows. The housings of the modules assembled with a splitter and adapters are superimposed on each other and positioned relative to each other by protruding positioning elements 5 and 16 of the base or cover (Figs. 1 and 4). The module cases assembled into blocks are placed and fastened with fasteners in couplings or cross cabinets in a known manner.

Since the base of the case has an angular ledge with an opening at the junction of the rear and side walls, the optical fiber of the splitter input cord is laid along the specified radius and the cord is protected from damage during installation work. A groove at the junction of the bottom and the side wall of the base on the side of the corner ledge for laying the splitter inlet cord in the bottom provides the ability to install several enclosures in a tier close to each other to place them in terminal blocks, regardless of the sides of the enclosures, without damaging the optical cords. At the same time, a simplification of the process of laying the splitter input optical cable emerging from the base of the housing is achieved.

As a result of the design features of the case described in the description, a significant reduction in the labor intensity of installation work has been achieved.

Claims (1)

The housing of the optical splitter module, containing a cover, a base with a bottom, front, rear and side walls, while openings are made in the front wall for installing adapters for optical connectors of the output cords of the optical splitter, and near the rear wall, at the base, an optical splitter attachment element is made, characterized in that the rear wall of the housing base has an angular ledge located on the side of the input cord of the optical splitter, in the ledge there is an opening for the cover protrusion, in which a passage is made for input-output of the input cord of the optical splitter, while along the junction of the bottom with the side wall, located on the side of the opening, a recessed groove is made for laying the optical fiber of the input cord of the optical splitter.

Images