Optical cable cross-connecting box with front and rear fiber jumper channels
By setting up front and rear jumper channels in the optical cable junction box, the problem of performance degradation of optical fiber at the bends in traditional junction boxes is solved, achieving smooth and aesthetically pleasing fiber routing, and improving the product's capacity and communication quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional double-sided optical cable junction boxes lack front and rear jumper channels, which causes the optical fibers to degrade in performance at bends, resulting in a messy and disorganized appearance that affects communication quality and appearance.
Design an optical cable junction box with front and rear jumper channels. By setting jumper channels above the jumper coil storage area, ensure that the optical fiber turning radius is greater than 20mm, and achieve smooth routing of front and rear jumpers.
This achieves smooth fiber optic cable routing, avoids fiber breakage, improves communication quality and aesthetics, and also increases product capacity and work efficiency.
Smart Images
Figure CN224005330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of communication optical cable junction boxes, specifically a double-sided optical cable junction box with front and rear jumper channels. Background Technology
[0002] An optical cable junction box (OCC) is a junction device that provides termination and patching for backbone optical cables and distribution optical cables. After the optical cable is introduced into the OCC, it is fixed, terminated, and distributed. Patch cables are used to connect the backbone optical cable and the distribution optical cable, which can facilitate the connection, distribution and scheduling of optical fiber lines.
[0003] Traditional double-sided optical cable junction box (refer to) Figure 8 (Schematic diagram of traditional double-sided optical cable junction box structure and wiring diagram) The overall layout is as follows: the upper part is the box body 1, and the lower part is the base 2; for the front of the box body, the left side of the upper half of the box body is the fiber patch cord storage area 3, the right side is the optical cable bundling and fixing area 5, and the middle is the optical fiber fusion splicing unit installation area 4 (the fusion splicing unit is a 12-core integrated panel); the left side of the lower half of the box body is the optical cable direct fusion area 6, and the right side is the optical cable entry stripping and fixing area 7; the front and back of the box body are symmetrically arranged; the box body and the base are fixed together by bolts, and the front door of the base can be opened from the inside of the box body.
[0004] Traditional double-sided fiber optic junction boxes adopt a symmetrical layout on both sides, each equipped with a 12-core integrated panel, a storage device, and fiber optic cable fixing devices. In addition to the top and bottom jumpers, each side also contains a large number of front and rear jumpers. Because there is no designated routing channel for these jumpers, they cannot be routed normally between the front and rear sections. Instead, they must be routed through gaps below the fiber optic fusion splicing unit installation area or above the top frame beam. This presents the following problems and potential hazards: Since fiber optic material is glass fiber, excessive bending of jumpers at bends can degrade fiber performance, affecting or interrupting communication, and in severe cases, even causing breakage; routing through the top and bottom gaps results in a messy and disorganized appearance, with jumpers tangled together, making old fibers difficult to remove. The messy jumpers also frequently obstruct parts of the integrated panel, affecting product capacity and impacting the appearance and cityscape. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide an optical cable junction box with front and rear jumper channels. The optical cable junction box should have the characteristics of smooth wiring, modularity, and beautiful appearance.
[0006] The technical solution of this utility model is:
[0007] A fiber optic cable junction box with front and rear jumper channels includes a box body and a base; the box body has a double-sided structure, and the front and rear of the box body each include an upper jumper coil storage area, an optical fiber fusion splicing unit installation area and an optical cable bundling and fixing area, and a lower optical cable direct fusion area and an optical cable entry stripping and fixing area; characterized in that: it also includes a jumper channel connecting the front and rear jumper coil storage areas, and the jumper channel is located above the jumper coil storage area.
[0008] The upper housing is equipped with an internal frame, including an upper and lower crossbeam arranged vertically, two jumper coil storage area mounting plates arranged front and back, two optical cable bundling and fixing area mounting plates arranged front and back, two optical fiber fusion splicing unit mounting plates arranged left and right, and a jumper channel mounting plate set above the jumper coil storage area mounting plate.
[0009] The fiber jumper channel mounting plate includes a cover plate, end plates extending downward from the front and rear edges of the cover plate, and side plates extending upward from the side edges of the cover plate.
[0010] The cover plate and the end plate form an arc transition, and the end plate is fixed to the mounting plates of the two fiber skipping trays at the front and rear; a fiber skipping channel is formed between the side plates.
[0011] The upper crossbeam includes a vertically arranged middle section, a horizontally arranged upper section connecting the top of the middle section, and a horizontally arranged lower section connecting the bottom of the middle section; the optical cable bundling and fixing area mounting plate is fixed to the upper section of the upper crossbeam; and the fiber jumper coil receiving area mounting plate is fixed to the lower section of the upper crossbeam.
[0012] The inner side of the fiber optic cable tray mounting plate is fixed to the lower section of the upper crossbeam; the outer side of the fiber optic cable tray mounting plate is fixed to the end plate; the cover plate is located above the lower section of the upper crossbeam.
[0013] The upper front of the enclosure has a fiber optic patch cord storage area on the left, an optical fiber fusion splicing unit installation area in the middle, and an optical cable bundling and fixing area on the right. The lower front of the enclosure has an optical cable direct fusion area on the left and an optical cable entry stripping and fixing area on the right.
[0014] The upper rear of the enclosure has a fiber patch cord storage area on the right, an optical fiber fusion splicing unit installation area in the middle, and an optical cable bundling and fixing area on the left. The lower rear of the enclosure has an optical cable direct fusion area on the right and an optical cable entry stripping and fixing area on the left.
[0015] The beneficial effects of this utility model are:
[0016] This invention improves upon the traditional double-sided optical cable junction box by adding a jumper channel connecting the front and rear jumper coil storage areas. The channel's turning radius is greater than 20mm, ensuring smooth jumper routing and guaranteeing sufficient turning radius (communication industry standards require a minimum bending radius of 15mm for optical fibers). This prevents fiber breakage or increased insertion loss, which could affect fiber performance and communication quality. Furthermore, the neat and orderly routing of jumpers through the channel enhances the product's aesthetic appeal and perceived quality. This double-sided optical cable junction box with the jumper channel can be widely used in the construction and upgrading of optical cable distribution products for telecommunications operators such as China Telecom, China Unicom, China Mobile, China Broadcasting Network, and China Tower, meeting the needs of intelligent network communication development. Attached Figure Description
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model.
[0020] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.
[0021] Figure 4 yes Figure 1 Schematic diagram of the cross-sectional structure along the BB direction.
[0022] Figure 5 This is a schematic diagram of the main structure of the fiber optic jumper channel mounting plate of this utility model.
[0023] Figure 6 This is a left-side structural schematic diagram of the fiber optic jumper channel mounting plate of this utility model.
[0024] Figure 7 This is a schematic diagram of the wiring of this utility model.
[0025] Figure 8 This is a schematic diagram of the wiring in existing technology.
[0026] Attached reference numerals: 1. Cabinet; 2. Fiber patch cord storage area; 3. Fiber optic fusion splicing unit installation area; 4. Fiber optic cable bundling and fixing area; 5. Fiber optic cable direct fusion splicing area; 6. Fiber optic cable entry stripping and fixing area; 7. Fiber patch cord channel; 8. Upper crossbeam; 11. Upper section of upper crossbeam 11-1; Middle section of upper crossbeam 11-2; Lower section of upper crossbeam 11-3; Lower crossbeam; 12. Fiber patch cord storage area mounting plate; 13. Fiber optic cable bundling and fixing area mounting plate; 14. Fiber optic fusion splicing unit installation area mounting plate; 15. Fiber patch cord channel mounting plate; 16. Cover plate 16-1; End plate 16-2; Side plate 16-3; Front door; 17. Storage assembly; 21. Patch cord ring; 22. 12-core integrated tray; 23. Cable guard ring; 24. Direct fusion splicing tray; 25. Stripping unit; 26. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0028] like Figure 1 As shown, an optical cable junction box with front and rear jumper channels includes a box body 1 and a base 2. The box body is located at the upper part of the junction box, and the base is located at the lower part of the junction box. The box body is fixed to the base vertically by fasteners.
[0029] The enclosure includes an upper enclosure and a lower enclosure, and both the upper and lower enclosures are double-sided structures, meaning they are symmetrically arranged on the front and back sides. Figure 1 and Figure 2 (As shown).
[0030] The upper housing is provided with a fiber patch cord storage area 3, an optical fiber fusion splicing unit installation area 4, and an optical cable bundling and fixing area 5. The lower housing is provided with an optical cable direct fusion area 6 and an optical cable entry stripping and fixing area 7.
[0031] like Figure 1 As shown, for the front of the enclosure, the fiber optic patch cord storage area is located on the left side of the upper enclosure, the fiber optic fusion splicing unit installation area is located in the middle of the upper enclosure, the fiber optic cable bundling and fixing area is located on the right side of the upper enclosure, the fiber optic cable direct fusion splicing area is located on the left side of the lower enclosure, and the fiber optic cable entry stripping and fixing area is located on the right side of the lower enclosure. Figure 2 As shown, at the rear of the enclosure, the fiber patch cord storage area is located on the right side of the upper enclosure, the fiber optic fusion splicing unit installation area is located in the middle of the upper enclosure, the fiber optic cable bundling and fixing area is located on the left side of the upper enclosure, the fiber optic cable direct fusion area is located on the right side of the lower enclosure, and the fiber optic cable entry stripping and fixing area is located on the left side of the lower enclosure.
[0032] The fiber optic cable tray storage area is equipped with a storage component 21 and a jumper ring 22. The fiber optic fusion splicing unit installation area is equipped with a 12-core integrated tray 23. The optical cable bundling and fixing area is equipped with a cable protection ring 24. The optical cable direct fusion area is equipped with a direct fusion tray 25. The optical cable entry stripping and fixing area is equipped with a stripping unit 26.
[0033] Both the front and rear fiber optic fusion splicing unit installation areas of the enclosure can accommodate more than 24 12-core integrated spools, with a capacity of more than 288 cores per side. These can be used for fiber optic termination and patching of 144-core backbone layer optical cables and 144-core distribution layer optical cables. Both the front and rear fiber optic direct fusion areas of the enclosure can accommodate more than 10 sets of direct fusion spools, with a capacity of more than 144 cores per side.
[0034] The upper housing is also provided with a jumper channel 8. The jumper channel is located above the jumper coil storage area and connects the front and rear jumper coil storage areas. Jumpers coming out of the 12-core integrated coil at the front of the housing pass through the jumper channel and enter the 12-core integrated coil at the rear of the housing.
[0035] The upper housing is provided with an internal frame, including an upper crossbeam 11, a lower crossbeam 12, a jumper coil storage area mounting plate 13, an optical cable bundling and fixing area mounting plate 14, an optical fiber fusion splicing unit mounting area mounting plate 15, and a jumper channel mounting plate 16.
[0036] The upper and lower crossbeams are arranged vertically, the two jumper coil storage area mounting plates are arranged front to back and fixed between the upper and lower crossbeams, the two optical cable bundling and fixing area mounting plates are arranged front to back and fixed between the upper and lower crossbeams, and the two optical fiber fusion splicing unit mounting area mounting plates are arranged left to right and fixed between the upper and lower crossbeams and between the jumper coil storage area mounting plate and the optical cable bundling and fixing area mounting plate.
[0037] The jumper coil housing area mounting plate is located on the left side of the front of the upper housing or the right side of the rear of the upper housing. The housing assembly and jumper ring are mounted on the jumper coil housing area mounting plate. The optical cable bundling and fixing area mounting plate is located on the right side of the front of the upper housing or the left side of the rear of the upper housing. The cable guard ring is mounted on the optical cable bundling and fixing area mounting plate. The optical fiber fusion splicing unit mounting area mounting plate is located in the middle of the upper housing, and the 12-core integrated tray is mounted on the optical fiber fusion splicing unit mounting area mounting plate.
[0038] like Figure 2As shown, the upper crossbeam is Z-shaped, providing a pre-installed mounting position for the jumper channel mounting plate. The upper crossbeam includes an upper section 11-1, a middle section 11-2, and a lower section 11-3. The middle section is vertically arranged, while the upper and lower sections are horizontally arranged and connected to the top and bottom of the middle section, respectively. The top of the jumper coil receiving area mounting plate is fixed to the lower section of the upper crossbeam. The top of the optical cable bundling and fixing area mounting plate is fixed to the upper section of the upper crossbeam.
[0039] The jumper channel mounting plate is positioned above the mounting plates of the front and rear jumper coil receiving areas. For example... Figure 5 and Figure 6 As shown, the jumper channel mounting plate includes a cover plate 16-1, an end plate 16-2, and a side plate 16-3. The end plate extends downward from the front and rear edges of the cover plate, forming an arc transition (radius greater than 20mm) between the cover plate and the end plate. The end plate is fixed to the front and rear jumper coil receiving area mounting plates by fasteners. The side plates extend upward from the two sides of the cover plate, and the area between the side plates serves as the jumper channel. The turning radius of the jumper channel is greater than 20mm, which can achieve smooth routing of front and rear jumpers, ensuring not only product quality and aesthetics but also meeting the curvature radius of the fiber optic cable and guaranteeing the optical performance of the fiber.
[0040] The inner side of the fiber optic cable tray mounting plate is fixed to the lower section of the upper crossbeam. The outer side of the fiber optic cable tray mounting plate is fixed to the end plate. The cover plate is located above the lower section of the upper crossbeam.
[0041] The enclosure is equipped with a door, and the base is equipped with a front door 17. After the front door is opened, optical cable maintenance operations can be performed. However, the front door can only be opened from inside the enclosure after the enclosure is opened to ensure equipment safety.
[0042] The working principle of this utility model is (refer to...) Figure 7 (Previous and subsequent fiber optic cable routing):
[0043] 1. Fiber optic jumpers on the same side of the enclosure: After the fiber optic jumper from one 12-core integrated tray passes through the jumper ring and the receiving component in the fiber receiving area of the jumper tray, it enters another 12-core integrated tray, completing the same-side fiber optic jumper and receiving operation.
[0044] 2. Front and rear 12-core integrated patch cords of the cabinet: The patch cords from the 12-core integrated patch cord at the front of the cabinet are routed and stored through the patch cord rings and storage components in the fiber storage area of the front patch cord, and then routed through the patch cord channel in the upper left of the upper cabinet to the rear of the cabinet. After being routed and stored through the patch cord rings and storage components in the fiber storage area of the rear patch cord, they enter another 12-core integrated patch cord at the rear, completing the front and rear patch cord and storage operation.
[0045] The front and rear jumpers of this invention are routed through preset jumper channels, making the jumpers neat, orderly, and aesthetically pleasing. This avoids fiber breakage or excessive bending, which could affect fiber performance and communication quality. It also enables standardized and modular production, improving work efficiency.
[0046] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. An optical cable distribution box provided with front and rear fiber jumper channels, comprising a box body (1) and a base (2); the box body is double-sided structure, the front and rear of the box body each comprises a jumper tray fiber storage area (3) located at the upper part, an optical fiber fusion splicing unit installation area (4) and an optical cable bundling and fixing area (5), and an optical cable direct fusion area (6) and an optical cable lead-in stripping and fixing area (7) located at the lower part; characterized in that: The fiber jumper channel (8) is arranged above the fiber storage area of the fiber jumper tray.
2. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 1, characterized in that: The box is provided with an internal framework, including an upper crossbeam (11) and a lower crossbeam (12) arranged vertically, two fiber storage area mounting plates (13) of the fiber jumper tray arranged front and back, two optical cable bundling and fixing area mounting plates (14) arranged front and back, two optical fiber fusion splicing unit installation area mounting plates (15) arranged left and right, and a fiber jumper channel mounting plate (16) arranged above the fiber storage area mounting plate of the fiber jumper tray.
3. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 2, characterized in that: The fiber jumper channel mounting plate includes a cover plate (16-1), end plates (16-2) extending downward from the front and back edges of the cover plate, and side plates (16-3) extending upward from the two side edges of the cover plate.
4. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 3, characterized in that: The cover plate and the end plates form a circular arc transition, and the end plates are fixed with the two fiber storage area mounting plates of the fiber jumper tray arranged front and back; the side plates form a fiber jumper channel.
5. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 4, characterized in that: The upper crossbeam includes an upper crossbeam middle section (11-2) arranged vertically, an upper crossbeam upper section (11-1) connected to the top end of the upper crossbeam middle section and arranged horizontally, and an upper crossbeam lower section (11-3) connected to the bottom end of the upper crossbeam middle section and arranged horizontally; the optical cable bundling and fixing area mounting plate is fixed with the upper crossbeam upper section; the fiber storage area mounting plate of the fiber jumper tray is fixed with the upper crossbeam lower section.
6. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 5, characterized in that: The inner side of the fiber storage area mounting plate of the fiber jumper tray is fixed with the upper crossbeam lower section; the outer side of the fiber storage area mounting plate of the fiber jumper tray is fixed with the end plate; and the cover plate is located above the upper crossbeam lower section.
7. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 6, characterized in that: The upper part of the front of the box is provided with a fiber storage area (3) of the fiber jumper tray located on the left side, an optical fiber fusion splicing unit installation area (4) located in the middle, and an optical cable bundling and fixing area (5) located on the right side; and the lower part of the front of the box is provided with an optical cable direct fusion area (6) located on the left side and an optical cable introduction, opening, and stripping fixing area (7) located on the right side.
8. An optical cable terminal box provided with front and rear fiber jumper passage according to claim 7, characterized in that: The upper part of the back of the box is provided with a fiber storage area (3) of the fiber jumper tray located on the right side, an optical fiber fusion splicing unit installation area (4) located in the middle, and an optical cable bundling and fixing area (5) located on the left side; and the lower part of the back of the box is provided with an optical cable direct fusion area (6) located on the right side and an optical cable introduction, opening, and stripping fixing area (7) located on the left side.