Optical distribution box
By using a shared sealing element and laser welding for the optical distribution box design, the problems of low construction efficiency and high cost of existing optical distribution facilities are solved, and efficient and low-cost optical distribution box construction is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-02
AI Technical Summary
Existing optical distribution facilities suffer from low construction efficiency, unstable quality, and high costs, mainly due to complex assembly and sealing structures, which result in high construction costs.
Design a light distribution box that uses a common sealing element to seal the adapter, box body, and ports, simplifying the assembly process, reducing the number of parts, and using laser welding to fix the box body, thereby reducing material costs.
It improved construction efficiency and quality, reduced assembly and material costs, simplified the construction process, and reduced the risk of sealing points.
Smart Images
Figure CN224317826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fiber communication technology, and specifically to an optical distribution box. Background Technology
[0002] With the large-scale deployment of FTTH (Fiber To The Home), pre-connected products that reduce construction costs, lower technical requirements, and simplify construction are becoming increasingly popular. However, most optical distribution facilities currently require optical cables to be installed in enclosures, necessitating complex cable stripping, fixing, and sealing operations, followed by complex splicing and fiber management. All of these operations must be completed on-site, significantly impacting construction efficiency and quality.
[0003] Currently, some pre-connected optical distribution facilities have appeared on the market. Although they greatly improve construction efficiency and quality, the cost of the products themselves is relatively high. Compared with traditional optical distribution facilities, the overall network construction cost advantage is not significant.
[0004] The reason for this is that a significant proportion of the product cost is spent on sealing the housing and installing and sealing the outdoor adapter. Current technologies typically use screws with sealing rings, hot-plate welding with sealing rings, or clips with sealing rings to achieve assembly and sealing, which is complex and costly. The assembly between the adapter and the housing usually uses nuts, which is also complex and costly. Sealing between the adapter and the housing uses sealing rings or gaskets, but sealing the adapter and connector requires separate sealing rings or gaskets, which is complex and increases material costs. Utility Model Content
[0005] This application provides a light distribution box that can reduce the number of parts, simplify the assembly process, and reduce material and production costs.
[0006] In a first aspect, embodiments of this application provide an optical distribution box, the optical distribution box comprising:
[0007] Bottom shell;
[0008] The top cover is fixed and sealed to the bottom shell. The top cover is provided with a plurality of adapter mounting parts, and each adapter mounting part is provided with an annular step protruding from the end face of the top cover.
[0009] Multiple adapters, each of which is mounted on an adapter mounting bracket, each adapter including an adapter clamp and a dust cap, the adapter clamp including an annular end face spaced apart from the annular step, the dust cap being fixed to the adapter clamp and covering the annular end face and the annular step;
[0010] Multiple seals, each of which is disposed between a set of annular steps and annular end faces.
[0011] In conjunction with the first aspect, in one embodiment, the end of the adapter clamp is provided with a positioning member along the circumferential direction. The positioning member includes a spring arm and a movable protrusion. The movable protrusion is disposed at the end of the spring arm and can be pressed down when a connector that matches the adapter is inserted.
[0012] In conjunction with the first aspect, in one embodiment, the spring arm is inclined relative to the radial section of the adapter clamp.
[0013] In conjunction with the first aspect, in one embodiment, the adapter clamp is further provided with an inverted buckle that is tilted and the height of the inverted buckle gradually decreases along the insertion direction of the adapter.
[0014] In conjunction with the first aspect, in one embodiment, the adapter clamp is further provided with a locking groove, and the inner wall of the dust cap is provided with a locking element that cooperates with the locking groove.
[0015] In conjunction with the first aspect, in one embodiment, the upper cover is further provided with a splitter slot, and a splitter is provided on the splitter slot.
[0016] In conjunction with the first aspect, in one embodiment, the upper cover and the bottom shell are provided with laser-welded ribs at the fixing point, and the back of the bottom shell is provided with a groove corresponding to the position of the laser-welded ribs. The upper cover and the bottom shell are welded and fixed together by the welding surface formed by the laser-welded ribs and the groove.
[0017] In conjunction with the first aspect, in one embodiment, the upper cover is further provided with a barrier covering the welded surface.
[0018] In conjunction with the first aspect, in one embodiment, the upper cover and the bottom shell are made of materials with similar melting temperatures.
[0019] In conjunction with the first aspect, in one embodiment, the upper cover is made of a UV-resistant light-absorbing material, and the bottom shell is made of a UV-resistant light-transmitting material.
[0020] The beneficial effects of the technical solutions provided in this application include:
[0021] The light distribution box in this application includes a bottom shell 1, a top cover 2, multiple adapters 3, and multiple seals 4. The top cover 2 is fixed and sealed to the bottom shell 1. The top cover 2 is provided with multiple adapter mounting parts 21, and each adapter mounting part 21 is provided with an annular step 211 protruding from the end face of the top cover 2. Each adapter 3 is mounted on an adapter mounting part 21. The adapter 3 includes an adapter clamping body 31 and a dust cap 32. The adapter clamping body 31 includes an annular end face 311 spaced apart from the annular step 211. The dust cap 32 is fixed to the adapter clamping body 31 and covers the annular end face 311 and the annular step 211. Each seal 4 is disposed between a set of annular steps 211 and annular end faces 311.
[0022] It is understood that this application uses the same sealing element 4 for the sealing of the adapter 3 and the housing, as well as the sealing of the port of the adapter 3. This reduces the number of sealing points and lowers the sealing risk, solving the problem in the prior art where the adapter and housing are sealed by a sealing ring or gasket, and the adapter body and dust cap are sealed by a separate sealing ring, resulting in high assembly and material costs. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the optical distribution box in this application;
[0025] Figure 2 This is an exploded view of the light distribution box in this application;
[0026] Figure 3 This is a magnified view of the first partial structure of the optical distribution box in this application;
[0027] Figure 4 This is an enlarged view of the second partial structure of the optical distribution box in this application;
[0028] Figure 5 This is a schematic diagram of the bottom structure of the top cover in this application;
[0029] Figure 6 This is a cross-sectional view of the light distribution box in this application;
[0030] Figure 7 This is a schematic diagram of the bottom structure of the bottom shell in this application.
[0031] In the diagram: 1. Bottom shell; 11. Groove; 2. Top cover; 21. Adapter mounting piece; 211. Annular step; 22. Splitter slot; 23. Laser-welded rib; 24. Enclosure; 3. Adapter; 31. Adapter clamp; 311. Annular end face; 312. Spring arm; 313. Movable protrusion; 314. Inverted buckle; 315. Locking groove; 32. Dust cap; 4. Seal; 5. Splitter. Detailed Implementation
[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0033] This application provides an optical distribution box.
[0034] In one embodiment, reference is made to Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of the optical distribution box of this application. Figure 1 and Figure 2 As shown, the light distribution box includes: a bottom shell 1, a top cover 2, multiple adapters 3, and multiple seals 4.
[0035] The upper cover 2 is fixed and sealed on the bottom shell 1. The upper cover 2 is provided with a plurality of adapter mounting parts 21, and each adapter mounting part 21 is provided with an annular step 211 protruding from the end face of the upper cover 2.
[0036] See Figure 3 and Figure 4 As shown, each adapter 3 is mounted on an adapter mounting piece 21. The adapter 3 includes an adapter clamping body 31 and a dust cap 32. The adapter clamping body 31 includes an annular end face 311 spaced apart from the annular step 211. The dust cap 32 is fixed to the adapter clamping body 31 and covers the annular end face 311 and the annular step 211. Each seal 4 is disposed between a set of the annular steps 211 and the annular end face 311.
[0037] Therefore, it can be seen that the seal 4 achieves both the seal between the adapter 3 and the housing, and the seal between the adapter 3 end face and the connection point with the dust cap 32 or the mating connector. Compared to the prior art where the adapter and housing are sealed with a sealing ring or gasket, the adapter body and dust cap are sealed with a separate sealing ring, which reduces the number of sealing points, lowers the sealing risk, and also reduces costs.
[0038] In some embodiments, the end of the adapter clamp 31 is provided with a positioning member along the circumferential direction. The positioning member includes a spring arm 312 and a movable protrusion 313. The movable protrusion 313 is disposed at the end of the spring arm 312 and can be pressed down when a connector that matches the adapter 3 is inserted.
[0039] It is worth noting that the positioning element in the prior art is usually set along the axial direction of the adapter clamp 31, but the spring arm of this setting is usually short, which will result in insufficient elastic force and cause inconvenience to use.
[0040] In this embodiment, the positioning element is arranged circumferentially, and its elastic arm 312 can be set to be longer, with greater elastic force. Preferably, the elastic arm 312 is inclined relative to the radial section of the adapter clamping body 31. As can be seen in the figure, the elastic arm 312 is inclined. This method allows the slot of the elastic arm 312 to be further away from the end face of the adapter, increasing the structural strength of the adapter end.
[0041] In some embodiments, the adapter holder 31 is further provided with an inverted buckle 314 that is tilted, and the height of the inverted buckle 314 gradually decreases along the insertion direction of the adapter 3. It is understood that when the adapter is inserted into the adapter mounting part 21, the inverted buckle 314, being tilted, facilitates insertion. Once inserted, the inverted buckle 314 springs back, and its end structure prevents the adapter 3 from disengaging, thus securing the two. In this embodiment, the use of an inverted buckle 314 for fixing reduces the need for assembling and tightening nuts, further reducing product costs.
[0042] Furthermore, the adapter holder 31 is also provided with a locking groove 315, and the inner wall of the dust cap 32 is provided with a locking element that cooperates with the locking groove 315. The locking groove 315 is mainly used to fix the dust cap 32 and the mating connector.
[0043] In some embodiments, see Figure 5 As shown, the upper cover 2 is also provided with a splitter slot 22, and a splitter 5 is provided on the splitter slot 22. It can be understood that since the upper cover 2 is also provided with an adapter mounting part 21, the splitter 5 and the adapter 3 are mounted on the same part, which facilitates the assembly of the splitter 5 and the adapter 3 and the fiber routing.
[0044] In addition, see Figure 6 and Figure 7As shown, the upper cover 2 and the bottom shell 1 are fixed with laser welding ribs 23, and the back of the bottom shell 1 is provided with a groove 11 corresponding to the position of the laser welding ribs 23. The upper cover 2 and the bottom shell 1 are welded and fixed by the welding surface formed by the laser welding ribs 23 and the groove 11.
[0045] In this embodiment, the optical distribution box is a pre-connected optical distribution box that does not require opening. The upper cover 2 and the bottom shell 1 are installed, fixed, and sealed using laser welding, reducing the need for sealing rings, screws, and other parts in the box assembly and achieving a good seal. To ensure a stable welding process, the upper cover 2 has a uniform ring of laser welding ribs 23. Correspondingly, the back of the bottom shell 1 has a ring of grooves 11, facilitating accurate laser positioning onto the laser welding ribs 23.
[0046] To ensure the impact resistance of the laser welding, an impact-resistant barrier 24 is provided on the top cover. The barrier 24 covers the welding surface of the bottom shell 1 and the top cover 2 inside the barrier, thereby reducing the shear force on the laser welding surface when the box is subjected to lateral impact.
[0047] To achieve good laser welding performance, the upper cover 2 and the bottom shell 1 are made of materials with similar melting temperatures, but the upper cover 2 is a UV-resistant light-absorbing material, while the bottom shell 1 is a UV-resistant light-transmitting material. The bottom shell 1 is made of a light-transmitting material so that the laser can pass through and be projected onto the welding ribs on the upper cover 2. The upper cover 2 absorbs the laser, generating a relatively high temperature that melts the plastic parts.
[0048] In summary, the optical distribution box of this application includes a bottom shell 1, a top cover 2, multiple adapters 3, and multiple seals 4. The top cover 2 is fixed and sealed to the bottom shell 1. The top cover 2 is provided with multiple adapter mounting parts 21, and each adapter mounting part 21 is provided with an annular step 211 protruding from the end face of the top cover 2. Each adapter 3 is mounted on an adapter mounting part 21. The adapter 3 includes an adapter clamping body 31 and a dust cap 32. The adapter clamping body 31 includes an annular end face 311 spaced apart from the annular step 211. The dust cap 32 is fixed to the adapter clamping body 31 and covers the annular end face 311 and the annular step 211. Each seal 4 is disposed between a set of annular steps 211 and annular end faces 311.
[0049] It is understood that this application uses the same sealing element 4 for the sealing of the adapter 3 and the housing, as well as the sealing of the port of the adapter 3. This reduces the number of sealing points and lowers the sealing risk, solving the problem in the prior art where the adapter and housing are sealed by a sealing ring or gasket, and the adapter body and dust cap are sealed by a separate sealing ring, resulting in high assembly and material costs.
[0050] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A light distribution box, characterized in that, The optical distribution box includes: Bottom shell (1); The top cover (2) is fixed and sealed on the bottom shell (1). The top cover (2) is provided with a plurality of adapter mounting parts (21), and each adapter mounting part (21) is provided with an annular step (211) protruding from the end face of the top cover (2). Multiple adapters (3), each adapter (3) is mounted on an adapter mounting piece (21), each adapter (3) includes an adapter holder (31) and a dust cap (32), the adapter holder (31) includes an annular end face (311) spaced apart from the annular step (211), the dust cap (32) is fixed to the adapter holder (31) and covers the annular end face (311) and the annular step (211). Multiple seals (4), each of the seals (4) is disposed between a set of the annular steps (211) and the annular end face (311).
2. The optical distribution box as described in claim 1, characterized in that: The adapter holder (31) has a positioning element at its end along the circumferential direction. The positioning element includes a spring arm (312) and a movable protrusion (313). The movable protrusion (313) is located at the end of the spring arm (312) and can be pressed down when a connector that matches the adapter (3) is inserted.
3. The optical distribution box as described in claim 2, characterized in that: The spring arm (312) is inclined relative to the radial section of the adapter clamp (31).
4. The optical distribution box as described in claim 1, characterized in that: The adapter holder (31) is also provided with an inverted buckle (314) that is tilted and the height of the inverted buckle (314) gradually decreases along the insertion direction of the adapter (3).
5. The optical distribution box as described in claim 1, characterized in that: The adapter holder (31) is also provided with a locking groove (315), and the inner wall of the dust cap (32) is provided with a locking element that cooperates with the locking groove (315).
6. The optical distribution box as described in claim 1, characterized in that: The upper cover (2) is also provided with a splitter slot (22), and a splitter (5) is provided on the splitter slot (22).
7. The optical distribution box as described in claim 1, characterized in that: The upper cover (2) and the bottom shell (1) are fixed with laser welding ribs (23), and the back of the bottom shell (1) is provided with a groove (11) corresponding to the position of the laser welding ribs (23). The upper cover (2) and the bottom shell (1) are welded and fixed by the welding surface formed by the laser welding ribs (23) and the groove (11).
8. The light distribution box as described in claim 7, characterized in that: The upper cover (2) is also provided with a barrier (24) covering the welding surface.
9. The optical distribution box as described in claim 7, characterized in that: The upper cover (2) and the bottom shell (1) are made of materials with similar melting temperatures.
10. The light distribution box as described in claim 9, characterized in that: The upper cover (2) is made of UV-resistant light-absorbing material, and the bottom shell (1) is made of UV-resistant light-transmitting material.