CN111897055A - Wavelength division multiplexer shell packaging structure and wavelength division multiplexer comprising same - Google Patents

Abstract

The invention relates to a wavelength division multiplexer housing packaging structure and a wavelength division multiplexer including the same. The wavelength division multiplexer comprises a housing packaging structure and a wavelength division multiplexer body, and the housing packaging structure , comprising a bottom shell and a cover plate, characterized in that a plurality of flanges are arranged on the side walls of the bottom shell, a accommodating cavity is arranged in the bottom shell, a fiber winding disc is arranged in the accommodating cavity, and the winding The fiber tray is provided with relatively distributed glass tube half-areas and heat-shrinkable tube half-areas, as well as a coil fiber channel arranged on the outer edge of the glass tube half-area. A glass tube clamping groove is formed between the bump and the fiber coil channel. The invention improves the assembly efficiency of the product.

Description

A wavelength division multiplexer shell packaging structure and a wavelength division multiplexer including the same

technical field

The invention relates to a wavelength division multiplexer, in particular to a wavelength division multiplexer casing packaging structure and a wavelength division multiplexer including the same.

Background technique

Wavelength-division multiplexing (WDM) is to combine a series of optical signals carrying information but with different wavelengths into a bundle and transmit them along a single fiber; A communication technology that separates the wavelengths of optical signals. This technology can transmit multiple signals on a fiber at the same time, and each signal is transmitted by a certain wavelength of light, which is a wavelength channel.

However, the current wavelength division multiplexer mainly has the following problems: 1) The wavelength division multiplexer directly coils the fiber on the bottom case, and the side wall of the bottom case seriously hinders the coiling speed and affects the coiling efficiency. It looks rather messy. 2) The optical fiber of the wavelength division multiplexer is glued to the bottom case, which is not only easy to fall off, affecting the appearance, but also may affect the data transmission; 3) The single-pass capillary of the wavelength division multiplexer is made of glass, which is costly ;4) The flange on the bottom shell adopts a single flange, and multiple flanges are squeezed together, and the WDM and LC joints have a serious impact on each other when plugging and unplugging.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects of the prior art, and to provide a wavelength division multiplexer housing packaging structure and a wavelength division multiplexer including the same.

For achieving the above object, the technical scheme adopted by the present invention is as follows:

A wavelength division multiplexer shell packaging structure includes a bottom shell and a cover plate, a plurality of flanges are arranged on the side walls of the bottom shell, a accommodating cavity is arranged in the bottom shell, and a accommodating cavity is arranged in the accommodating cavity. A fiber winding drum, which is provided with relatively distributed glass tube half regions and heat shrinkable tube half regions, and a fiber winding channel arranged on the outer edge of the glass tube half region, and the glass tube half region is provided with There are bumps so that a glass tube clamping groove is formed between the bumps and the fiber coil channel.

Further, a small cover plate is also provided above the fiber winding tray at a position corresponding to the half area of the glass tube.

Further, the bottom case and the small cover are connected by screws and/or connected by a first buckle, and the fiber winding disk is limited and arranged between the bottom wall of the bottom case and the small cover. .

Furthermore, the side wall of the bottom case is provided with a notch groove with an upward opening, and a plurality of the flanges are clamped in the notch groove.

Further, the flange adopts a multi-joint flange, and a plurality of partitions are arranged at the notch groove, so that the notch groove is divided into a plurality of partitions. Among the plurality of partitions, at least one partition is clamped. There are the multi-connected flanges, and the remaining partitions are clamped with baffles.

Further, grooves are provided on the bottom wall of the notch groove and the lower surface of the top cover, and protrusions are provided on the bottom wall of the flange and the baffle plate, and the protrusions are inserted into the bottom wall. It is arranged in the corresponding groove and has an interference fit with the groove.

Further, the fiber coil channel includes a semi-annular fiber coil baffle, a number of first wire management grooves and a number of second wire management grooves arranged on the inner side of the semi-annular fiber coil baffle, the first wire management groove and the The second wire management grooves are alternately arranged.

Further, the first wire management slot is at least enclosed by a semi-annular fiber disk baffle, a first side plate and a top plate, and the top plate is provided with an oblique opening; the second wire management slot is at least half a half. The annular disk fiber baffle plate and the second side plate are enclosed.

A wavelength division multiplexer includes a housing packaging structure and a wavelength division multiplexer body, the wavelength division multiplexer body is arranged on a fiber winding disk of the housing packaging structure, and the wavelength division multiplexer The optical fiber of the main body is arranged in the coiled fiber channel, the input connector and the output connector of the wavelength division multiplexer body are respectively arranged on the corresponding flanges; the glass tubes of the wavelength division multiplexer body are arranged side by side on the In the glass tube clamping groove on the fiber winding drum, the heat shrinkable tubes of the wavelength division multiplexer body are arranged side by side in the half area of the heat shrinkable tube of the fiber winding drum.

Further, the single-pass capillary of the wavelength division multiplexer body is made of ceramic material.

Compared with the prior art, the beneficial effects of the present invention are:

In the invention, an independent fiber winding drum is provided, and the fiber winding drum is detachably connected with the bottom shell, which facilitates fiber winding and improves efficiency. Yes; in the present invention, a fiber coil channel is arranged on the fiber winding drum, and the fiber can be fixed through the fiber coil channel. Compared with the traditional glue fixing method, the fiber is not easy to fall off. The edge is limited, so that the overall rules of the optical fiber are neat and tidy. The arrangement of the small cover plate of the present invention ensures that the optical fiber is not easy to be scattered during transportation and use, and at the same time, the glass tube is limited in the glass tube slot, so as to avoid the glass tube from being separated from the glass tube. The pipe clipping groove falls off; the invention improves the single-pass capillary from the traditional glass material to the ceramic material, which reduces the cost and improves the durability of the product; The crowding problem of the flange is convenient for the plugging and unplugging of the joint, and the assembly efficiency is improved.

Description of drawings

FIG. 1 is a schematic structural diagram of a casing packaging structure in an embodiment of the present invention;

FIG. 2 is an exploded view of a housing packaging structure in an embodiment of the present invention;

3 is an exploded view of another angle of the casing packaging structure in an embodiment of the present invention;

4 is a perspective view of a fiber winding drum in an embodiment of the present invention;

5 is a schematic structural diagram of a wavelength division multiplexer in an embodiment of the present invention;

6 is a perspective view of a wavelength division multiplexer in an embodiment of the present invention (without a cover plate and a small cover plate);

In the picture: 1. Bottom shell, 2. Cover plate, 3. Flange, 4. Fiber winding tray, 5. Glass tube half area, 6. Heat shrink tube half area, 7. Fiber channel, 8. Bump , 9, glass tube slot, 10, small cover, 11, notched groove, 12, partition, 13, baffle, 14, groove, 15, protrusion, 16, semi-circular fiber baffle, 17, The first cable management slot, 18, the second cable management slot, 19, the top plate, 20, the inclined opening; 21, the optical fiber, 22, the input connector, 23, the output connector, 24, the glass tube, 25, the heat shrinkable tube, 26, First through hole, 27, second through hole, 28, positioning column, 29, screw column, 30, second buckle, 31, first side plate, 32, second side plate, 33, rib.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Example 1

As shown in FIGS. 1 to 4 , an embodiment of a WDM shell packaging structure of the present invention includes a bottom shell 1 and a cover plate 2 , and a plurality of flanges 3 are provided on the side walls of the bottom shell 1 . , the bottom case 1 is provided with a accommodating cavity, the accommodating cavity is provided with a fiber winding disk 4, and the fiber winding disk 4 is provided with relatively distributed glass tube half-areas 5 and heat-shrinkable tube half-areas 6, and The fiber coil channel 7 is arranged on the outer edge of the glass tube half-area 5, and the glass tube half-area 5 is provided with a bump 8, so that a glass tube is formed between the bump 8 and the coil fiber channel 7 Card slot 9. In the present invention, an independent fiber winding drum 4 is provided, and the fiber winding drum 4 is detachably connected to the bottom case 1, which facilitates fiber winding and improves efficiency. When using, the light can be coiled on the fiber winding drum 4 first, and then put into the bottom. In the shell 1, that is enough; the present invention can realize the fixation of the optical fiber 21 by setting the fiber coil channel 7 on the fiber winding reel 4, and the fiber 21 can be fixed by the coil fiber channel 7. Compared with the traditional glue fixing method, the optical fiber 21 is not easy to fall off,

As an embodiment of the casing packaging structure of the wavelength division multiplexer of the present invention, a small cover plate 10 is further provided at a position corresponding to the glass tube half-area 5 above the fiber winding disk 4 . The arrangement of the small cover plate 10 of the present invention ensures that the optical fibers 21 are not easily scattered during transportation and use, and at the same time limits the glass tube 24 in the glass tube clamping slot 9 to prevent the glass tube 24 from falling off from the glass tube clamping slot 9 .

Further, several downward convex ribs 33 are provided on the bottom walls of the small cover plate 10 and the cover plate 2 .

Further, the bottom case 1 and the small cover plate 10 are connected by screws and/or through a first snap connection, and the fiber winding disk 4 is limitedly arranged on the bottom wall of the bottom case 1 and the small cover. between the plates 10. The specific connection method of the bottom case 1 and the small cover plate 10 of the present invention can be used as long as it can be ensured that it is detachable except for the above-mentioned connection method.

Further, the bottom wall of the bottom case 1 is provided with a plurality of positioning posts 28, the fiber winding disc 4 is provided with a plurality of first through holes 26, and the positioning posts 28 are arranged through the corresponding first through holes 26. inside a through hole 26 .

Further, when the bottom case 1 and the small cover plate 10 are connected by screws, among the positioning columns 28, at least one of the positioning columns 28 is a screw column 29, and the small cover plate 10 is connected with the screw column 29. A second through hole 27 is provided at a position corresponding to the screw column 29 , and the screw passes through the second through hole 27 and is threadedly connected to the screw column 29 .

As an embodiment of the casing structure of the wavelength division multiplexer of the present invention, the side wall of the bottom case 1 is provided with a notch groove 11 with an upward opening, and a plurality of the flanges 3 are clamped in the notch groove within 11.

Further, the flange 3 adopts a multi-joint flange 3, and two partitions 12 are provided at the notch groove 11, so that the notch groove 11 is divided into 3 partitions. In the 3 partitions, One partition is connected with double flanges 3, one partition is connected with six flanges 3, and one partition is connected with 4 baffles 13. The present invention adopts the multi-joint flange 3 to replace the traditional single flange 3, which solves the crowding problem of the flange 3, facilitates the insertion and removal of the joint, and improves the assembly efficiency.

Further, grooves 14 are provided on the bottom wall of the notch groove 11 and the lower surface of the top cover, and protrusions 15 are provided on the bottom wall of the flange 3 and the baffle 13, so The protrusions 15 are inserted into the corresponding grooves 14 and have an interference fit with the grooves 14 .

As an embodiment of the casing structure of a wavelength division multiplexer of the present invention, the fiber coil channel 7 includes a semi-annular fiber coil baffle 16 , and a plurality of first A wire management slot 17 and a plurality of second wire management slots 18 are arranged alternately. The arrangement of the fiber coil baffle 13 of the present invention can limit the position of the edge of the optical fiber 21, so that the optical fiber 21 is completely regular and neat.

Further, the first wire management slot 17 is at least enclosed by the semi-annular fiber coil baffle 16, the first side plate 31 and the top plate 19, and the top plate 19 is provided with an oblique opening 20. The wire slot 18 is at least enclosed by the semi-annular fiber coil baffle 16 and the second side plate 32 . The arrangement of the oblique opening 20 of the present invention facilitates the insertion of light into the first wire management slot 17 and prevents the light from coming out of the first wire management slot 17 .

Further, two of the plurality of first cable management grooves 17 are respectively disposed at the ends of the semi-annular fiber coil baffles 16 .

As an embodiment of the WDM shell packaging structure of the present invention, the top wall of the bottom case 1 is provided with an annular groove 14, and the cover plate 2 is erected in the annular groove 14, The cover plate 2 is connected with the bottom case 1 through a second buckle 30 .

Example 2

As shown in FIGS. 1 to 6 , an embodiment of a wavelength division multiplexer of the present invention includes a casing packaging structure and a wavelength division multiplexer body, and the wavelength division multiplexer body is disposed in the casing On the fiber reel 4 of the body packaging structure, the wavelength division multiplexer body includes light, glass tube 24, heat shrink tube 25, input connector 22 and output connector 23, and the housing packaging structure includes a bottom case 1 and a cover. Plate 2, a plurality of flanges 3 are arranged on the side wall of the bottom shell 1, an accommodation cavity is arranged in the lower casing 1, and a fiber winding disc 4 is arranged in the accommodation cavity, and a fiber winding disc 4 is arranged on the There are relatively distributed glass tube half-areas 5 and heat-shrinkable tube half-areas 6, and a fiber coil channel 7 arranged on the outer edge of the glass tube half-area 5, and the glass tube half-area 5 is provided with bumps 8, thereby A glass tube clamping groove 9 is formed between the bump 8 and the coiled fiber channel 7; the optical fiber 21 of the wavelength division multiplexer body is arranged in the coiled fiber channel 7, and the wavelength division multiplexer The input connector 22 and the output connector 23 of the body are respectively arranged on the corresponding flanges 3; the glass tubes 24 of the wavelength division multiplexer body are arranged side by side in the glass tube clamping grooves 9 on the fiber winding disk 4, The heat shrinkable tubes 25 of the wavelength division multiplexer body are arranged side by side in the heat shrinkable tube half area 6 of the fiber winding drum. The body of the wavelength division multiplexer of the present invention is the core part of the wavelength division multiplexer after the casing is removed, which is the prior art. Only the components associated with the casing packaging structure are summarized in the present invention. Other components and The connection relationship is not repeated here.

Further, the heat-shrinkable tube 25 is arranged on the fiber winding drum by double-sided tape.

Further, the wavelength division multiplexer body further includes a single-pass capillary tube, and the single-pass capillary tube is made of ceramic material. The invention improves the single-pass capillary tube from the traditional glass material to the ceramic material, which reduces the cost and improves the durability of the product.

As an embodiment of a wavelength division multiplexer of the present invention, a small cover plate 10 is further provided at a position corresponding to the glass tube half area 5 above the fiber winding disk 4 .

Further, several downward convex ribs 33 are provided on the bottom walls of the small cover plate 10 and the cover plate 2 .

Further, the bottom case 1 and the small cover plate 10 are connected by screws and/or through a first snap connection, and the fiber winding disk 4 is limitedly arranged on the bottom wall of the bottom case 1 and the small cover. between the plates 10. The specific connection method of the bottom case 1 and the small cover plate 10 of the present invention can be used as long as it can be ensured that it is detachable except for the above-mentioned connection method.

Further, the bottom wall of the bottom case 1 is provided with a plurality of positioning posts 28, the fiber winding disc 4 is provided with a plurality of first through holes 26, and the positioning posts 28 are arranged through the corresponding first through holes 26. inside a through hole 26 .

Further, when the bottom case 1 and the small cover plate 10 are connected by screws, among the positioning columns 28, at least one of the positioning columns 28 is a screw column 29, and the small cover plate 10 is connected with the screw column 29. A second through hole 27 is provided at a position corresponding to the screw column 29 , and the screw passes through the second through hole 27 and is threadedly connected to the screw column 29 .

As an embodiment of a wavelength division multiplexer of the present invention, the side wall of the bottom case 1 is provided with a notch groove 11 with an upward opening, and a plurality of the flanges 3 are snapped into the notch groove 11 .

Further, the flange 3 adopts a multi-joint flange 3, and two partitions 12 are provided at the notch groove 11, so that the notch groove 11 is divided into 3 partitions. In the 3 partitions, One partition is connected with double flanges 3, one partition is connected with six flanges 3, and one partition is connected with 4 baffles 13.

Further, grooves 14 are provided on the bottom wall of the notch groove 11 and the lower surface of the top cover, and protrusions 15 are provided on the bottom wall of the flange 3 and the baffle 13, so The protrusions 15 are inserted into the corresponding grooves 14 and have an interference fit with the grooves 14 .

As an embodiment of a wavelength division multiplexer of the present invention, the fiber coil channel 7 includes a semi-annular fiber coil baffle 16 , and a plurality of first cable management grooves 17 disposed inside the semi-annular fiber coil baffle 16 and a plurality of second wire management grooves 18, the first wire management grooves 17 and the second wire management grooves 18 are alternately arranged.

Further, the first wire management slot 17 is at least enclosed by the semi-annular fiber coil baffle 16, the first side plate 31 and the top plate 19, and the top plate 19 is provided with an oblique opening 20. The wire slot 18 is at least enclosed by the semi-annular fiber coil baffle 16 and the second side plate 32 . The arrangement of the oblique opening 20 of the present invention facilitates the insertion of light into the first wire management slot 17 and prevents the light from coming out of the first wire management slot 17 .

Further, two of the plurality of first cable management grooves 17 are respectively disposed at the ends of the semi-annular fiber coil baffles 16 .

As an embodiment of a wavelength division multiplexer of the present invention, an annular groove 14 is provided on the top wall of the bottom case 1, the cover plate 2 is erected in the annular groove 14, and the cover plate 2 is connected with the bottom case 1 through a second buckle 30 .

The above-mentioned embodiments are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made to it without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a wavelength division multiplexer casing packaging structure, includes drain pan (1) and apron (2), its characterized in that, be provided with a plurality of flanges (3) on the lateral wall of drain pan (1), be provided with in drain pan (1) and hold the chamber, it is provided with around fine dish (4) to hold the intracavity, be provided with relative distribution's glass pipe half-area (5) and pyrocondensation pipe half-area (6) on fine dish (4), and set up in fine passageway (7) of dish on glass pipe half-area (5) outer edge, be provided with lug (8) in glass pipe half-area (5), thereby lug (8) with form glass pipe draw-in groove (9) between fine passageway (7) of dish.

2. A wavelength division multiplexer housing arrangement according to claim 1, wherein a small cover plate (10) is further provided above the fiber winding disc (4) at a position corresponding to the glass tube half-section (5).

3. The wavelength division multiplexer casing packaging structure according to claim 2, wherein the bottom casing (1) and the small cover plate (10) are connected by a screw and/or a first snap, and the fiber winding disc (4) is disposed between the bottom wall of the bottom casing (1) and the small cover plate (10) in a limited manner.

4. The wavelength division multiplexer casing packaging structure according to claim 1, wherein a side wall of the bottom casing (1) is provided with a notch groove (11) with an upward opening, and a plurality of flanges (3) are clamped in the notch groove (11).

5. The wavelength division multiplexer casing packaging structure according to claim 4, wherein the flange (3) is a multiple connection flange (3), a plurality of partition plates (12) are disposed at the notch groove (11) so as to divide the notch groove (11) into a plurality of partitions, at least one partition is connected with the multiple connection flange (3) in a clamped manner, and the remaining partitions are connected with the baffle (13) in a clamped manner.

6. A wavelength division multiplexer housing packaging structure according to claim 5, wherein the bottom wall of the gap groove (11) and the lower surface of the top cover are both provided with a groove (14), the bottom walls of the flange (3) and the baffle (13) are both provided with a protrusion (15), and the protrusion (15) is inserted into the corresponding groove (14) and is in interference fit with the groove (14).

7. The wavelength division multiplexer housing packaging structure according to claim 1, wherein the disc fiber channel (7) comprises a semi-annular disc fiber baffle (16), a plurality of first wire arranging grooves (17) and a plurality of second wire arranging grooves (18) arranged inside the semi-annular disc fiber baffle (16), and the first wire arranging grooves (17) and the second wire arranging grooves (18) are alternately arranged.

8. The wavelength division multiplexer housing packaging structure according to claim 7, wherein the first wire arrangement groove (17) is at least enclosed by a semi-annular fiber coil baffle (16), a first side plate (31) and a top plate (19), and the top plate (19) is provided with an inclined opening (20); the second wire arranging groove (18) is at least formed by enclosing a semi-annular fiber coiling baffle plate (16) and a second side plate (32).

9. A wavelength division multiplexer comprising the housing package according to any one of claims 1 to 8, wherein the wavelength division multiplexer comprises the housing package according to any one of claims 1 to 8 and a wavelength division multiplexer body, the wavelength division multiplexer body is disposed on a fiber winding disc (4) of the housing package, an optical fiber (21) of the wavelength division multiplexer body is disposed in the disc fiber channel (7), and an input connector (22) and an output connector (23) of the wavelength division multiplexer body are respectively disposed on corresponding flanges (3); the glass tube (24) of the wavelength division multiplexer body is arranged in the glass tube clamping groove (9) on the fiber winding disc (4) side by side, and the heat shrinkage tube (25) of the wavelength division multiplexer body is arranged in the heat shrinkage tube half-area (6) of the fiber winding disc side by side.

10. A wavelength division multiplexer according to claim 9, wherein the single pass capillary of the wavelength division multiplexer body is of ceramic material.

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