Source: https://russianpatents.com/patent/248/2488858.html
Timestamp: 2019-05-23 04:25:26
Document Index: 31459717

Matched Legal Cases: ['art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 36', 'art 204', 'arts 204', 'art 204', 'arts 204', 'art 204', 'arts 204', 'art.\n6', 'art.\n13']

Highly reliable fibre-optic connector
The invention relates to fiber-optic data transmission systems and more specifically to systems for connecting fiber-optic cables.
Fiber optic cables are widely used for transmission of optical signals to transfer data with high speed. Fiber optic cable typically includes: (1) optic fiber or multiple fibers; (2) the buffer or multiple buffers surrounding the optical fiber or fibers; (3) reinforcing layer surrounding the buffer or buffers; and (4) outer shell. Optic fibers are used to transmit optical signals. A typical optic fiber includes an inner core surrounded by a shell, which is applied to the floor. Buffers (e.g., loose or tight buffer tube) is usually surround and protect the fiber light guide is coated. Stiffener increases the mechanical strength of the fiber-optic cables, to protect the internal optic fibers from mechanical loads acting on the cables during and after installation. This stiffener may be made for example of aramid yarn, steel or glass fiber bundles impregnated with epoxy resin. The outer shell protects from damage caused when alimonies, heavy abrasion and other physical damage factors. The outer shell protects from chemical damage (e.g., ozone, alkali or acids).
System connection of fiber-optic cables are used to facilitate connection and disconnection of fiber-optic cables in the field, without requiring splicing of optical fibers. Typical system connection fiber-optic cable contains optical fiber connectors that are installed on the ends of these fiber optic cables, and an adapter for mechanical and optical connection of these fiber-optic connectors. Fiber optic connectors typically include liners as a support for the ends of optical fibers of fiber optic cables. End surface of the cylinder liner is usually polished and often slanted. The adapter has a combined coaxial ports (i.e. socket)into which insert to be joined fiber optic connectors. The adapter also includes an inner sleeve, the receiving and combining the sleeves of fiber optic connectors when the connectors are inserted into the ports of the adapter. When the liner and the respective optic fibers aligned within the sleeve of the adapter, the optical signal can pass from one fiber to another. Consider the adapter usually has a mechanical system is the first fastening (for example, with snap) for mechanical retention of the fiber optic connector within the adapter. One example of known systems connection of optical fibers is described in US patents No. 6579014, 6648520 and 6899467.
One of the objects of the present invention is a fiber optic connector with two locking systems for securing fiber optic connectors in the fiber optic adapter.
Another object of the present invention is a fiber optic connector, providing a relatively high density fiber optic circuits inside the computer.
Another object of the present invention is a fiber optic connector with a tapered interface, providing a complementary pair with the corresponding response conical interface fiber optic adapter.
Various additional aspects of the present invention will be described next below. These aspects of the invention may relate to individual features or sets of features. It is understood that the foregoing General description and following detailed description are given only as examples for explanation and does not limit the broad scope of the principles described here are based options done by the means of the invention.
Figure 1 shows the system connection of optical fibers according to the invention, in perspective view;
figure 2 - connection system of optical fibers, shown in figure 1, is installed on the end of the fiber optic cable connector of the system of connection of optical fibers, perspective view;
figure 3 - connection system of optical fibers according to figure 1 with the adapter system connection of optical fibers, shown by the dashed lines the imaginary contour;
figure 4 - connection system of optical fibers according to figure 1 with the adapter system connection of optical fibers, shown schematically mounted on the casing;
figure 5 - connection system of optical fibers, shown in figure 1, a perspective view with a spatial separation of the parts;
figure 6 - cross section of the system shown in figure 5, along the line 6-6;
7 - fiber optic connector system for connection of optical fibers, shown in figure 1, a perspective view with a spatial separation of the parts;
on Fig - the main body of the fiber optic connector shown in Fig.7,perspective view;
figure 9 - the main part shown in Fig, top view;
figure 10 - cover of the fiber optic connector shown the CSO 7, type in the future;
figure 11 - cover, shown in figure 10, a view in plan;
on Fig - fiber optical adapter system connection of optical fibers, shown in figure 1, a perspective view with a spatial separation of the parts;
on Fig is a sectional view of the system along the line 13-13 as shown in Fig;
on Fig - enlarged view of part of the image in figure 3;
on Fig - magnified image of the latch fiber optic adapter system connection of optical fibers, shown in figure 1;
on Fig - system connection of optical fibers and optical fiber cable according to figure 2, a side view,
on Fig - section image on Fig along the line 17-17;
on Fig - system connection of optical fibers and optical fiber cable according to figure 2, top view;
on Fig is a sectional view of the image on Fig along the line 19-19;
on Fig - other system connection of optical fibers, the characteristics of which are examples of the objects of the invention, a perspective view;
on Fig - system connection of optical fibers according Fig, top view;
on Fig is a sectional view of the image on Fig along the line 22-22;
on Fig - system connection of optical fibers according pig, end view.
Figure 1-5 shows a system 30 of the connection fiber sotovogo is according to the invention for the optical connection of the first fiber optic cable 20 (see 4) with the second fiber optic cable 22 (see figure 4). The system 30 connection of optical fibers comprises fiber optic adapter 34, the first fiber optic connector 32 on the end of the first cable 20 and the second fiber optic connector 33 (shown in figure 3) at the end of the second fiber optic cable 22. The adapter 34 is located in the casing 19 (shown schematically in figure 4). This adapter 34 includes the first port 35 for receiving the first connector 32 and the second port 37 for receiving the second connector 33. When the connectors 32, 33 are inserted into their respective ports 35, 37 of the adapter 34, the first cable 20 is optically connected with the second cable 22.
As shown in figure 4, the first cable 20 is an external cable (for example, external cable equipment located outside the casing 19), and the second cable 22 is located inside the casing 19. In this embodiment, the first cable 20 is designed to transmit the optical signal from the outside of the casing 19, and the system 30 connection of optical fibers allows you to transmit a signal from the first cable 20 to the second cable 22.
Each of the cables 20 and 22 contains one or more of optical fibers for transmitting optical signals. Such a fiber, the fiber includes a core surrounded by the shell. The core is the Central region of the fibre that carries light. The shell surrounds the core and is made is made of a material with a lower refractive index, than the core material. Transmitting the optical signal along the core occurs due to reflection of light inside the core. Fiber optical fibers can be protected buffer tubes. Fiber-optic cables may also contain reinforcing elements to increase the strength of fiber-optic cables to break. Optic fibers, reinforcing elements, buffer tube and other components of the cable may be surrounded by an outer shell or jacket, forming a protective coating for components of the cable. As shown in figure 5, the first cable 20 includes a Central buffer tube 220 within which is enclosed at least one fiber light guide 222. Reinforcing elements 224 are located on opposite sides of the Central buffer tube 220. These reinforcing elements 224 and the buffer tube located within the outer shell 226 cable 20.
Inside the casing 19 can be a variety of optical devices (for example, terminals for branching optical signals, pedestals, equipment, network interfaces, fiber optic distribution hub couplings for splicing optical fibers, optical network terminals, and the like). In one of the embodiments of the invention, the adapter 34 may be installed on the terminal for branching the optical signal op is sliding in the application of the U.S. patent for the invention №11/075847 entitled "Fiber optic terminal access", filed March 8, 2005 and is incorporated into this description by reference in its entirety. In such embodiments of the invention, the cable 20 may be a branch cable, routed to the subscriber equipment, and the cable 22 may be a provided with a connector of a fiber, the fiber composition of a drop cable that runs from the terminal for branching optical signals to the tapping point from the distribution fiber optic cable. An example of such a branch fiber optic cable described in the application U.S. patent No. 11/491336, entitled "the design of the branch fiber optic cable mount unit", filed July 21, 2006, and is incorporated into this description by reference in its entirety. In another embodiment of the invention one or more of the considered adapters can be installed in the hardware network interface, for example, as described in the application U.S. patent No. 11/607676 called "Hardware network interface", filed December 1, 2006, and is incorporated into this description by reference in its entirety. In this embodiment of the invention, the first cable 20 may be a branch cable, and the cable 22 can be a supplied connector cable/optic fiber located inside the instrument set the new interface. In an alternative embodiment of the invention, the system 30 connection of optical fibers can also be used without a separate casing (for example, the adapter can be installed on the panel).
In the described embodiment of the invention, the first connector 32 and the adapter 34 have increased strength or reliability. Increased strength or reliability must ensure that the first connector 32 and the adapter 34 outdoors. For example, the first connector 32 and the adapter 34 can have tight seals to prevent the ingress of moisture/water. It is preferable that the first connector 32 connected to the adapter 34, was able to withstand an axial pull force of 445 N. The second connector 33 may be a conventional fiber optic connector, such as connector subscriber channel (SC). One example of such a SC connector shown and described in US patent No. 5317663 included in the present description by reference in its entirety.
As shown in figure 5 and 7, the first connector 32 includes a housing 39 of the connector having a main portion 36 and the cover 41. The housing 39 of the connector is extended from the far end 52 to the middle end 54 (far and near ends defined with respect to the connection of fiber-optic cable 20 with the connector 32). At the far end 52 of the housing 39 of the connector installed unit 43 of the sleeve, and near the end 54 of the housing urashima installed the cap 42 for strain relief. Around the outside of the housing 39 of the connector along the perimeter of the installed sealing element 49 (for example, o-ring). This sealing element 49 is designed to create a seal between the body 39 of the connector and the adapter 34 when the first connector 32 is inserted into the first port 35 of the adapter 34. The first connector 32 also includes a crimp band 38, mounted on top of the main portion 36 and the cover 41, and the sealing tube 106, sealing the joint between the cable 20 and the housing 39 of the connector. Crimp band 38 helps to keep the cover 41 to the main body 36, and also helps to secure the reinforcing elements 224 of the cable 20 into the space between the cover 41 and the main part 36. The first connector 32 includes first and second mounting structures to hold (i.e. connections, fixing and the like) of the first connector 32 inside the first port 35 of the adapter 34. For example, the first connector 32 may have a latch 50 (see Fig 3, 7, 14, and 15) for mechanical coupling with the adapter 34 when the first connector 32 is inserted into the first port 35. The first connector 32 also includes a coupling nut 40, wrap the threads in the adapter 34 for retaining the first connector 32 inside the first port 35 of the adapter 34.
The housing 39 of the connector 32 is extended from the far end 52 to the middle end 54. At the far end 52 formed plug section 56, and near the end 54 of the two lobes 58. One of the petals 58 formed frequent the th 36 of the housing, and the other lug 58 formed by the cover 41 of the housing 39. Part 36 is made as a single molded part (e.g., molded plastic parts, as shown in Fig.7-9), and the cover 41 is made in the form of a single molded part (e.g., molded plastic parts, as shown in Fig.7, 10 and 11). Inside the housing 39 of the connector from the near end 54 to the far end 52 is the Central channel 118. This Central channel 118 has far 118a, passing through the plug section 56 of the housing 39 of the connector, and the middle section 118b, limited between part 36 and the cover 41. The middle section 118b of the Central channel 118 is limited in part 36 and partially cover 41. The cover 41 with part 36 provides access to the side of the middle section 118b of the Central channel 118. Far section 118a of the channel 118 is limited by the part 36 and passes through the plug section 56. Far section 118a of the channel 118 has a far end far end 52 of the housing 39 and the near end near the middle section 118b of the channel 118.
The size and shape of the plug section 56 of the connector 32 allows tightly paste it into the first port 35 of the adapter 34, as shown in figure 3, 17, and 19. The far end of the plug section 56 preferably has a conical shape, coupled or coordinated (for example, nested or complementary) with a tapered section of the first plug socket 59, available through the PE the first port 35 (see Fig). As shown in Fig, the conical shape is limited to opposite surfaces (e.g., left and right surfaces 61, 63), converging in the direction along the Central axis A1 of the connector 32 in the direction of the far end. The end of the plug section 56 truncated. When the plug section 56 is inserted into the first plug socket 59, the surface 61,63 come into contact with inclined surfaces 67, 69, limiting the first plug socket 59, and are arranged in parallel or substantially in parallel with these inclined surfaces.
As shown in Fig and 15, the latch 50 of the first connector 32 is made on the upper side of the plug section 56. The latch 50 has a cantilever arm 90, the base 81 which is made in one piece with the plug section 56. The lever 90 is in the direction of the far end of the connector from the base 81 to the free end 83. Beside the free end 83 of the lever 90 is the tooth 51 of the retainer, with the ascending region 92 and the descending region 94. The lever 90 is bent, when the plug section 56 is inserted into the first port 35 of the adapter 34, to create a locked connection between the first connector 32 and the adapter 34 when the plug section 56 is fully inserted into the first port 35. For example, as shown in Fig, the teeth 51 of the retainer comes into place in the groove 82 of the latch is limited by the adapter 34. The groove 82 of the latch partially restricted to keep the her surface 96.
When the plug section 56 is inserted into the first port 35 of the adapter 34, the adapter 34 unbends the lever 90 of the latch 50 to the axis A1 by contact of the ascending region 92 with the adapter 34. The lever 90 is made from a material that is able to bend when pressed, for example from plastic. The introduction of the plug section 56 in the port 35 continues until the rising region 92 will not pass over the retaining surface 96 of the groove 82. After ascending region 92 completely pass by the retaining surface 96, a downward region 94 is in contact with the retaining surface 96. The force generated by the bending of the lever 90 causes the teeth 51 of the latch to rise after passing the descending region 94 past the retaining surface 96. The introduction lasts as long as a downward region 94 will not work completely or almost completely by the retaining surface 96 of the groove 82. At this point, the adapter 34 ceases to compress the lever 90, so that the lever 90 is returned in an uncompressed state. In an alternative embodiment of the invention, the adapter 34 may, if necessary, to maintain some degree of compression of the lever 90.
One of the advantages of considering latch is that it creates a force that does not allow removal of the first connector 32 from the first port 35 and thereby prevent unintentional disengagement of the first connector is 32 and out the first port 35. If, for example, the first connector 32 begins to move in the direction from the first port 35, a downward region 94 is in contact with the retaining surface 96 of the groove 82 of the latch. In this position, for separating the first connector 32 from the first port 35, you need to make an effort in the direction from the first port 35, sufficient to compress the lever 90 to the descending region 94 was given from the surface 96. The necessary force is governed by the stiffness of the lever 90, and the slope of the descending region 94. Form of latch 50 also provides physical and audible indication that the first connector 32 is fully inserted into the first port 35.
Rising region 92 of the teeth 51 of the retainer has an angle of elevation is denoted by A2, and the descending region 94 of the tooth 51 of the retainer has an angle reduction, denoted by A3. In the form shown in the drawing example, the angle A2 is less than the angle A3. The advantage of this configuration is that the latch 50 is easier to insert than to be extracted as reduced elevation (A2) does not create as much resistance to the introduction of the connector, as the resistance created by the increased angle reduction (A3) to extract the connector. In one example, the angle A3 is about twice the angle A2. In another example, the angle A2 is approximately equal to the angle A3. However, it is clear that the angles A2 and A3 can have an arbitrary value. In one example, the angles A2 and A3 lie in the range of the region from 0° to 90° and preferably from 15° to 85°. In another example, the angle A2 is in the range from 15° to 45°, and the angle A3 is in the range from 30° to 90°.
Upstream and downstream areas 92 and 94 converge at a vertex at height H1. The lever 90 is at a height H2 above the adjacent sections of the plug section 56. In one example, the height HI is approximately equal to the height H2. In an alternative embodiment, the height H2 is greater than height HI that adjacent areas of the plug section 56 does not interfere with the movement of the latch 50. In another embodiment, the height H2 may be less than the height HI just enough to allow sufficient space for entry of the latch 50 in the groove 82.
In another example, the angle A3 may be about 90°, so that the descending region 94 is mostly perpendicular to the lever 90. In this example, such a downward region 94 will not allow you to retrieve the latch 50 by a simple application of force in the direction from the port 35. Instead, the latch 50 can be released manually by clicking on it, for example through the slot 82. The latch 50 can be pressed, for example, a narrow instrument, inserted through the slot 82. Alternatively, above the groove 82 may be located button. This button may have a lever that is included in the groove 82, which pressed the button presses on the latch 50, allowing you to retrieve the first connector 32 from the first port 35.
Coupling nut 40 of the first connector 32 forms a second fastening means of the first connector 32 with the adapter 34. After adelka 50 engages and blocked in the adapter 34, you can turn the compression nut 40 on the corresponding groove cut inside the first port 35, to create a second connection to the adapter 34. The connection between the coupling nut 40 and the adapter 34 provides significantly greater resistance to pulling the connector from the adapter compared to the same resistance created by the latch 50. In this example, the coupling nut 40 holds the first connector 32 in the first port 35, even if the first connector 32 is effective pull force of at least 445 N.
Coupling nut 40 of the first connector 32 has a first region 180 and the second region 182. In the first region 180 is executed multiple grooves 184 to the first region 180 can be take by the hand, for example, when a technician or other user attaches the connector 32 to the adapter 34 or disconnect the connector from the adapter. Grooves 184 may represent a number of longitudinal grooves, so it's easier to rotate the clamping nut 40. The rotation of the coupling nut 40 allows the connecting elements in the second region 182 to enter into engagement or out of engagement with the adapter 34. In the form shown in the drawings, the embodiment of the invention, the second region 182 has connecting elements in the form of external threads 75, mating with the internal threads 76 in the first port 35 of the adapter 34. In another embodiment, domestic the invention can be used other connecting elements.
The block 43 of the sleeve to the first connector 32 includes a sleeve 100 (for example, ceramic liner, cylinder 101 mounted on the sleeve 100, the spring 102 and the holder 104 of the spring. The block 43 of the sleeve is inserted into the first connector 32 when the main portion 36 is removed, the cover 41. To insert a block of the sleeve 43 in the housing 39 of the connector, the sleeve 100 is placed in the far section 118a of the Central channel by entering the sleeve 100 through the middle the far end of the section 118a. With these settings, the cylinder 101 rests on the ledge 103, located inside the plug section 56 (see Fig and 18). Then in the far section 118a to the rear of the liner insert 100 spring 102. Then in the pocket 114 (see Fig-11) of the main portion 36 of the rear spring insert holder 104 of the spring so that the spring is clamped in the far section 118a of the channel between the cylinder 101 and the holder 104 of the spring. Thus, the sleeve 100 is spring-loaded in the direction of the far end.
The configuration of the middle section of the housing 39 of the connector allows you to securely connect the first cable 20 and the first connector 32. For example, the size of the middle section 118b of the Central channel 118 allow you to insert a buffer tube 220 of the first cable 20. On opposite sides of the middle section 118b of the Central channel is made reception elements 120 (e.g., channels, passages, grooves and the like) for receiving reinforcing elements 224 of the first cable 20. Part 36 of them is no mounting holes 116, includes appropriate mounting pins 117 of the cover 41 to ensure proper alignment of the cover 41 with part 36 at their connection. The housing 39 of the connector also has outlet openings 122 that the adhesive is able to flow from the enclosure 39 when the cover 41 is connected with a part 36. In the internal volume of the housing 39 is made patterns to improve the adhesion between the adhesive and the inner surfaces of the housing. For example, inside the housing made several grooves 123 to enhance the adhesion of the inner surface of the housing 39. Other structures to enhance the adhesion, may be knurled, roughened surfaces or other structures.
On the outer surface of the housing 39 of the connector is made of a circular groove 112 for installation of the sealing element 49. On the outer surface of the housing 39 is formed a circular ledges 123 and 124 (see Fig.7), which can abut the crimp band 38 after Assembly of the connector and a circular ledge 113 (Fig and 9). In the outer surface of the petals 58 is made of a circular recess 128. On the inner side of the petals 58 are fixing teeth 130.
Next, the installation of the connector 32 on the end of the fiber optic cable 20 is described with reference to figure 5. To start the installation smooth out the end of the fiber optic cable. In the Stripping process removes the outer shell 226 to open the reinforcing elements 224 and buffer the Yu tube 220. After Stripping the cut portion of the buffer tube 220 to open the fiber light guide 222.
When the end of the cable 20 is prepared as described above, by sliding wear a cap 42 on the end of the fiber optic cable 20 and then install the sealing tube 106 (for example, heat shrink tubing or heat shrink tape/braid), the compression nut 40 and crimp band 38. The bare fiber of the optical fiber 222 is then passed through the holder 104 of the spring and the spring 102 and is placed within the sleeve 100. Then insert the block 43 of the sleeve into the plug section 56 of the housing 39 of the connector.
After installing the unit liner inside the casing 39 of the connector of the first cable 20 is fixed in the housing 39 of the connector so that the cable 20 extends in the longitudinal direction of the near end 54 of the housing 39. Figure 5 and 7 show perspective views of part 36 with the cover removed 41, in position for Assembly with fiber-optic cable. When assembling the cable reinforcing elements 224 of the fiber optic cable 20 is inserted into the receiving elements 120 and enter the buffer tube 220 in the middle section 118b of the Central channel 118, so that the fiber light guide 222 runs mainly along the axis A1. Then put glue on the buffer tube 220, reinforcing elements 224, the Central channel 118 and the receiving elements 120, including what is on the inside part 36 and kr is the loud and 41. As a glue, you can use epoxy or glue of any other type. Alternatively, you can also apply fasteners to connect the cover 41 with part 36. Part 36 and the cover 41 combine properly by means located on the inner side of the cover 41 of the pins 117 included in the Assembly in the mounting holes 116 part 36. After that press the cover 41 to part 36 to close the reinforcing elements 224, the buffer tube 220 and the fiber light guide 222 inside the housing 39 of the connector. Educated in part 36 and the cover 41 of the outlet 122 to exit the adhesive allow you to remove excess glue from the housing 39. When the cover 41 is pressed against the portion 36, the excess adhesive flows out of the housing to the outside through the exhaust holes 122 and can then be wiped off from the surface.
Fiber optic cable 20 is smoothed out in the previous step, preferably so that the outer casing 226 ended on a ledge 136 (see Fig-11) of the housing 39. This ledge 136 is located at the far ends of the petals 58 and near the near end receiving elements 120 and the Central channel 118. Thus, when the cover 41 is connected with part 36, the petals 58 closed end of the outer shell 226. When the cover 41 and the portion 36 are pressed together, the teeth 130 of the petals 58 pressed against the outer shell 226 or pressed into it. These teeth 130 are oriented is so to prevent movement of the outer shell 226 in the direction of the end from the middle part 36. Thus, the teeth 130 formed another means of attaching, holding fiber optic cable in solid engagement with the casing 39 of the connector.
After connecting the cover 41 with part 36 and fiber-optic cable 20 pull sliding the crimp band 38 on top of part of the body 39 of the connector and compresses in place to secure the cover 41 on the portion 36. Then on top of the plot crimp band 38 and pushes the sealing tube 106 to close the end of the cable 20, the middle end of the housing 39 of the connector and at least the plot crimp band 38. Then the sealing tube 106 is heated to cause shrinkage of the tube and a snug fit neighbouring areas of the body 39 of the connector, the crimp band 38 and the optical fiber cable 20 and to seal the connector against the ingress of foreign substances. Then on top of the crimp band 38, the sealing tube 106 and the housing 30 of the connector pull to slide the compression nut 40. Then on top of the first connector 32 and the sealing tube 106 and pushes sliding cap 42. The cap 42 is made, for example, from a flexible plastic/rubber material. At the far end of the cap 42 can be made of the structure (e.g., acting inward flange or rim), obrotowe the mechanical vzaimoponimae engagement with the groove 128 of the petals 58. Although the petals 58 is separated from the cap 42 of the sealing tube 106, this sealing tube 106 tightly encloses the petals 58, so that the cap 42 may engage with a groove 128 on the petals 58. Then in the groove 112, surrounding the casing 39 of the connector, place the sealing element 49, completing the installation of the connector 32 on the fiber-optic cable 20. The cap 42 holds the compression nut 40 on the housing 39 of the connector.
As shown in figures 1, 2, 5 and 12, the adapter 34 of the system 30 of the connection of optical fibers includes an outer housing 44 includes a first section 45 of the casing and connected with it by the second section 47 of the housing. The first section 45 of the housing limits the first end 70 of the outer casing 44, which is the first port 35. The second section 47 of the housing limits the second end 72 of the outer casing 44, which is the second port 37. Inside the outer casing 44 has a unit 140 of the adapter. The adapter 34 also includes a mounting ring or nut 46 mounted on the outer housing 44 from the outside.
The first section 45 of the adapter body 34 has a first region 60 that is separated from the second region 62 ledge 64. The first and second areas 60, 62 are generally cylindrical outer shape, and a ledge 64 reduces the diameter of the first region 60 to the second region 62. The second region 62 is near the ledge 64 is made external thread 66. This external thread 66 matches the I with a corresponding internal thread 68 of the mounting nut 46, so the mounting nut 46 can be screwed on the threads on the second region 62 of the first section 45 of the housing. On opposite sides of the second region 62 also made a pair of latches 167, used for fastening the first section 45 of the housing to the second section 47 of the housing. Each of the latches 167 contains a flexible cantilever lever 170, the base of which is made in one piece with the second region 62. Each cantilever arm 170 limits the opening 172 for receiving respective teeth 174 of the latch of the second section 47 of the housing when the first and second sections 45, 47 of the housing are connected to each other.
As shown in Fig, the first region 60 restricts the first port 35 of the adapter 34. In the first region near the first end 70 of the housing 44 cut internal threads 76. This internal thread 76 inside the first port 35 corresponds to the external thread 75 of the coupling nut 40 when this clamping nut 40 is wrapped on the threads in the first port 35 for establishing a reliable connection between the first connector 32 and the adapter 34.
As shown in Fig and 19, the first section 45 of the housing limits the annular sealing surface 78 that is located inside of the first section 45 of the housing beside the internal thread 76. Sloping transition region 79 reduces the inner diameter of the first port 35 of the internal threads 76 to the annular sealing surface 78. This ring TP is positive, the surface 78 is preferably essentially cylindrical and is designed for connection with the sealing element 49 of the first connector 32, when the first connector 32 is fully inserted into the first port 35. The junction between the annular sealing surface 78 and the sealing element 49 generates an internal hermetic seal between the first connector 32 and the adapter 34.
As shown in Fig and 19, the first section 45 of the housing limits the internal pocket 80 in the second region 62 for receiving end portion of the second section 47 of the housing when connecting the first and second sections 45, 47 of the housing. The pocket 80 is separated from the annular sealing surface 78 ledge 84, where the increase in diameter from the annular sealing surface 78 to afford 80. As shown in Fig in the pocket 80 is made protrusion 150 (e.g., tooth or guide) to ensure proper angular alignment between the first section 45 of the casing and the second section 47 of the housing. When connecting the first and second sections 45, 47 of the housing with each other, the protrusion 150 is included in a corresponding groove 151, limited second section 47 of the casing.
The second section 47 of the adapter body 34 has a first region 86 that is separated from the second region 88 ledge 89. These first and second region 86 and 88 are essentially cylindrical outer shape. The ledge 89 creates a reducing outer diameter from the first region 86 to the second region 88. In this second region 88 is made mounting prongs 174 for connecting the first section 45 cor the USA with the second section 47 of the casing.
The first region 86 of the second section 47 of the housing has a pair located on opposite sides of the latch 160 to secure the adapter block 140 within the second section 47 of the housing. As shown in Fig and 17, each of the latches 160 has a cantilever arm 161, the base 162 which is made in one piece with the second section 47 of the housing and opposite the base 162 is the free end 163. These free ends 163 formed teeth 164 of the latch. The teeth 164 of the latch have sloping surfaces 166 that are oriented at an angle to the Central axis of the adapter 34, and a retaining surface 168 focused mainly across the Central axis of the adapter 34. The first region 86 of the second section 47 of the housing may also have a groove 169 (see figure 3) for receiving the respective guide 165 of the second connector 33 to the second connector 33 has been inserted into the second port 37 is guaranteed in the correct orientation relative rotation.
The second area 88 of the second section 47 of the housing limits the first plug-in slot 59 for receiving the plug section 56 of the first connector 32 when the first connector is inserted into the first port 35 of the adapter. As described earlier, the first plug-in slot 59 has a conical area enclosed by the opposite surfaces 67, 69, converging towards each other in the direction of the second end 72 of the adapter 34. The conical configuration of the first piece is Chernogo socket 59 and the plug section 56 of the first connector 32 helps to maintain precise alignment of the first connector 32 in the adapter 34. The first region 86 of the second section 47 of the housing also restricts the second plug socket 97, corresponding to the second port 37 of the adapter. This is the second plug-in socket 97 is designed to receive the second connector 33.
Block 140 of the adapter 34 includes a clamp 201 for mounting the connector, split sleeve 202 and the hard part 204. Split sleeve 202 is designed to receive cartridges of the first and second connectors 32, 33, when these connectors are inserted into the adapter 34 to ensure alignment between the fiber light guides 222 connectors 32, 33. The clip 201 for mounting the connector comprises a pair of levers 206 latches included in engagement with the second connector 33, when the second connector is inserted into the second port 37 of the adapter 34. Thus, the levers 206 latches hold the second connector 33 in the second port 37. The clip 201 for mounting the connector also has a cylindrical socket 208 for receiving one end of the split sleeve 202. The other end of this split sleeve is inserted into the cylindrical socket 209 resistant parts 204. Thus, the split sleeve is sandwiched between the clamp 201 for mounting the connector and hard part 204. The flanges 211 and 212 of the clip 201 for mounting the connector and hard parts 204 are attached to one another to secure the split sleeve 202 between the clamp 201 for mounting the connector and hard part 204. When the split sleeve 202 is installed between the clamp 201 for mounting the RA is Yama and persistent item 204, this split sleeve 202 has only a limited space for axial sliding in a cylindrical sockets 208, 209. However, this limited space allows split sleeve 202 to "float" within cylindrical sockets 208, 209 to ensure proper alignment between the cartridge 100 connectors 32,33.
During the installation of the assembled unit 140 of the adapter in the second section 47 of the housing insert this adapter block 140 to the second plug-in slot 97 through the second port 37 of the adapter. When the power adapter is inserted into the second plug socket 97, flanges 211, 212 of the adapter block come into contact with inclined surfaces 166 cantilever levers 161, causing the cantilever levers thibetica out. After the flanges 211, 212 under pressure passed by the inclined surfaces 166, cantilever levers 161 snap radially inward, and a retaining surface 168 of teeth 164 of the latch seize and hold unit 140 of the adapter within the second section 47 of the chassis (see Fig). In this position the end where the clip fastening of the connector unit 140 of the adapter is available from the second port 37 of the adapter 34, and the end, where is the hard part, adapter block 140 is available from the first port 35 of the adapter 34. The flanges 211, 212 sandwiched between the retaining surfaces 168 teeth 164 of the latch and the ledge 213 of the second section 47 of the housing. A cylindrical socket 208 of the clip 201 for mounting the RA is Yama is located inside the second plug socket 97, and a cylindrical socket 209 resistant parts 204 is located inside the first plug-in slot 59. Split sleeve 202 is oriented mainly along the Central axis of the adapter 34. In the described embodiment of the invention, the adapter does not contain structures (for example, springs or other dewatering or elastic structure), which would block 140 of the adapter to "float" inside the outer casing 44. Instead, the teeth 164 of the latch does not give unit 140 of the adapter to "float" or otherwise move within the outer casing 44. However, as indicated above, between the split sleeve 202 located inside unit 140 of the adapter, and a cylindrical sockets 208, 209 has a limited space, allowing split sleeve "float" within cylindrical sockets 208, 209.
After the unit 140 of the adapter clicks into place inside of the second section 47 of the outer casing 44, the first and second sections 45, 47 of the body are joined one with the other. For example, the second region 88 of the second section 47 of the housing is inserted into the pocket 80, limited in the second region 62 of the first section 45 of the housing. In this connection ensures proper alignment angle of rotation by inserting the protrusion 150 of the first section 45 of the housing in a corresponding groove 151 of the second section 47 of the housing. When the second section 47 of the casing is inserted in the first section 45 of the body, cantilever levers 170 gear Crepin the e teeth 174, which leads to the bending of the cantilever levers 170 radially outward. When the holes 172 of these cantilever levers 170 are aligned with the mounting prongs 174, cantilever levers clicks are moved radially inward to the locked position in which the mounting teeth 174 are holes 172.
The adapter 34 is designed for installation in a hole in the wall of the casing 19. To install the adapter 34 in the hole first remove the mounting nut 46. After that, the second end of the outer casing 44 is inserted from the outside of the housing into the mounting hole until the ledge 64 will not rest against the outer surface of the wall of the casing. Then mounting nut 46 is wrapped on the threads 66 until this nut will not rest against the inner surface of the wall of the casing. When the wall of the casing is sandwiched between the ledge 64 and the mounting nut 46, the adapter 34 is firmly and securely installed on the cover.
As mentioned above, the adapter 34 creates an optical connection between the first connector 32 and the second connector 33. To create such a connection of the first connector 32 is set in the first port 35, and the second connector set in the second port 37 of the adapter. To install the first connector 32 in the first port 35 of the adapter, the first connector 32 is inserted along the axis of the first port 35, while the plug section 56 will not fit tightly in the first plug socket 59 and the latch 50 snaps into place in the groove 82. In this position gilsa fits tightly into one end of the split sleeve 202, and sealing element 49 is pressed against the annular sealing surface 78. The connection process is completed, turning the compression nut 40 through the internal threads 76 of the adapter 34, while the end surface 115 (shown in figure 7 and 17) of the clamping nut 40 will not rest on the circular ledge 113 of the housing 39 of the connector, thereby attaching the housing 39 of the connector to the second region 88 of the second section 47 of the adapter body 34 (as shown in Fig). The second connector 33 is set in the second port 37 of the adapter, insert the connector in the axial direction in the port 37, while the connector 33 snaps into place between the arms 206 of the clip 201 for mounting the connector. In this position the sleeve 230 of the connector 33 is at the other end of the split sleeve 202 so that the sleeve 230, 100 are combined with one another in the axial direction.
The system 30 connection of optical fibers preferably has a compact design, allowing to realize a relatively high density of the circuitry. In one of the embodiments of the invention, the diameter D1 of the sealing element 49 and the diameter D2 of the annular sealing surfaces do not exceed each 15 mm In an alternative embodiment of the invention, the diameter D1 of the sealing element 49 and the diameter D2 of the annular sealing surfaces do not exceed each of 12.5 mm In another embodiment of the invention, the diameter D1 will condense the high element 49 and the diameter D2 of the annular sealing surfaces do not exceed every 10 mm
On Fig-23 depicts another system 330 connection of optical fibers, the characteristics of which are examples of the objects of the present invention in accordance with the principles set forth in the present description. The system comprises a first connector 332 and the adapter 334 for optical connection of the first connector 332 with another connector. The connection of optical fibers structurally has basically the same configuration as the system 30 according to figure 1-22, except that the connector 332 contains "stranded" sleeve 301 (for example a sleeve, in which there is more than one of the fibre) and the adapter 334 is designed to connect the first multi-conductor connector with the second multi-conductor connector. Stranded sleeve 301 has a generally rectangular shape, and the adapter 334 contains mostly rectangular slots for receiving stranded sleeves.
From the above detailed description it is obvious that various modifications of the described device is not beyond being and scope of the present invention.
1. Fiber optic connector (30), designed for use with fiber-optic adapter (34) and contains:
case (39) connector having an end forming a plug section;
block (43) sleeve mounted at least partially within the connector body and aderrasi sleeve (100), located in the plug-in section of the connector body;
sealing element (49)is mounted around the outside of the connector housing and having an outer diameter less than 15 mm;
the first fastening means of the connector within the adapter containing the retaining nut (40)mounted on the outside of the connector housing for rotation and having an external thread;
moreover, the connector housing includes opposite the far and near ends (52,54), while at the far end of the connector housing is a plug section, and to the middle end of the connector body attached to the optical cable, the connector housing contains made as a single part the main part (36)that extends from the far end to near-end and fully forming the plug-in section of the connector body, through the body of the connector passes the channel (118),
wherein the connector housing includes a cover (41)mounted on the main part near the middle end of the connector housing, and the channel has a far land (118a), passing through the plug section and the middle section (118b), located between the main part (36) and the cover (41).
2. Fiber optic connector according to claim 1, in which the plug section has an end of a truncated conical shape.
3. Fiber optic connector according to claim 1, in which the outer diameter of the sealing element is not bol is e 12.5 mm
4. Fiber optic connector according to claim 1, in which the outer diameter of the sealing element is not more than 10 mm
5. Fiber optic connector according to claim 1, additionally containing a brace (38)mounted on the near end of the connector housing over at least part of the cover and at least part of the main body, for holding the cover on the main part.
6. Fiber optic connector of claim 1, wherein the main part has an outer circumferential groove (112)located next to the plug-in section of the connector housing, thus sealing element at least partially mounted within the outer circular grooves.
7. Fiber optic connector according to claim 1, additionally containing the sealing tube (106)located at the interface between fiber optic cable and the connector body.
8. Fiber optic connector according to claim 1, in which the main part contains the external ledge (113), which rests against a nut.
9. Fiber optic connector according to claim 1, in which the fiber optic cable includes a sheath (226)surrounding at least one reinforcing element (224) and the fiber light guide (222) fiber-optic cable, and the connector housing contains two neighbors of a petal (58), between which is located the end of the shell, near the petals (58) contain fasteners that secure the shell, moreover, is one of the neighbors of the petals forms part of the main part, and the other middle petal forms part of the lid.
10. Fiber optic connector according to claim 9, in which the retaining sheath fastening elements contain the retaining teeth.
11. Fiber optic connector according to claim 1, in which the sleeve includes a spring (102) for podpruzhineny sleeve in the direction of the far end and spring retainer (104) to hold the near end of the spring, and the sleeve and the spring is inserted into the plug section through the near end far end of the Central channel when removed from the main part of the lid.
12. Fiber optic connector according to claim 1, in which the fiber-optic cable contains fiber light guide (222)through the near and far side of the channel in the sleeve and the fiber optic cable further comprises at least one reinforcing element (224)located between the cover and the main part.
13. Fiber optic connector according to claim 1, additionally containing a second means of securing the connector within the adapter.