Connection box and communication system

Abstract

The embodiment of the utility model relates to the technical field of communication, and provides a connection box and a communication system, the connection box comprises a shell and an adapter, the shell comprises a first shell and a second shell, the adapter is arranged on one of the first shell and the second shell, the first end of the adapter is located inside the shell, and the second end of the adapter is located outside the shell. And the second shell is connected with the first shell in a welding manner. Therefore, a sealing ring arranged between the second shell and the first shell can be omitted, the problems of sealing failure and the like between the second shell and the first shell can be effectively reduced or avoided, and the stability and the reliability of sealing between the second shell and the first shell can be effectively improved. And moreover, mechanical automatic operation can be achieved through welding connection, automatic assembly between the second shell and the first shell can be achieved, and the assembly efficiency between the second shell and the first shell can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a connection box and a communication system. Background Art

[0002] Optical distribution network (ODN) refers to a network composed of all passive optical fibers and passive devices (such as optical splitters) between optical line terminals (OLT) and optical network units (ONU). ODN connects an OLT device and multiple ONU devices to provide bidirectional transmission of optical signals. Connection boxes (such as optical junction boxes, optical distribution boxes, optical splitter boxes, etc.) are used in ODN projects, and different numbers and types of passive optical devices are integrated inside these connection boxes to meet the needs of optical fiber deployment and management. With the increasingly fierce competition in the ODN industry, the cost of connection box products has become one of the important issues, and the market demand for low cost and high reliability of connection box products is unprecedentedly strong.

[0003] Usually, the connection box includes a shell and an adapter panel arranged on the shell, and an adapter is arranged on the adapter panel, one end of the adapter is located inside the shell, and the other end is located outside the shell. Among them, the end of the adapter located inside the shell is used to connect with the optical fiber connector inside the shell, and the end of the adapter located outside the shell is used to connect with the optical fiber connector outside the shell, so that the two optical fiber connectors inside and outside the shell can be connected through the adapter to realize the transmission of optical signals. At present, the adapter panel and the shell are usually connected by means of snap-on and screw fasteners, and a sealing ring is also arranged between the adapter panel and the shell to achieve sealing between the shell and the adapter panel.

[0004] However, in the above-mentioned connection box, the sealing ring is prone to sealing failure, and its assembly relies on manual work, which has low assembly efficiency, thereby reducing the overall assembly efficiency of the connection box. Utility Model Content

[0005] The embodiments of the present application provide a connection box and a communication system, which can effectively improve the stability and reliability of the seal between the adapter panel and the shell, and improve the assembly efficiency of the connection box.

[0006] The present application provides a connection box, including a shell and an adapter arranged on the shell, the shell includes a first shell and a second shell, the first shell and the second shell are jointly arranged to form a receiving cavity, and the adapter is located on one of the first shell and the second shell. The adapter includes a first end and a second end, the first end is located inside the shell, and the second end is located outside the shell. The first end of the adapter is used to connect with a first connector in the receiving cavity, and the second end of the adapter is used to connect with a second connector outside the shell. The adapter and the shell are an integrated structure, and the first shell and the second shell are sealed and connected by welding.

[0007] In the embodiment of the present application, the second shell and the first shell are sealed and welded, and the welded connection is sealed reliably, so that the sealing ring between the second shell and the first shell can be omitted, and the sealing failure between the second shell and the first shell can be effectively reduced or avoided, and the stability and reliability of the seal between the second shell and the first shell can be effectively improved. Moreover, the welding connection can realize mechanical automation operation, and can realize the automatic assembly between the second shell and the first shell, which can effectively improve the assembly efficiency between the second shell and the first shell.

[0008] In a possible implementation, the first shell is a side shell, the second shell is a transfer panel, and the adapter is integrally formed on the transfer panel.

[0009] In a possible implementation, the first shell is an upper shell, the second shell is a lower base plate, and the adapter is integrally formed on the upper shell.

[0010] In one possible implementation, the first shell has a first lap surface at one end facing the second shell, the second shell has a second lap surface at one end facing the first shell, the second lap surface overlaps the first lap surface, and the connecting weld between the second shell and the first shell is located between the first lap surface and the second lap surface.

[0011] The first overlapping surface and the second overlapping surface can increase the contact area between the second shell and the first shell, can reduce or avoid misalignment between the second shell and the first shell, and can facilitate welding between the second shell and the first shell, thereby effectively improving the reliability of welding between the second shell and the first shell, and enhancing the firmness and reliability of the connection between the second shell and the first shell.

[0012] In a possible implementation, at least one of the first overlap surface and the second overlap surface has a raised portion, and the raised portion melts to form the connecting weld. In this way, the melting material of the connecting weld between the second shell and the first shell can be increased, which helps to increase the firmness, reliability and sealing of the welded connection between the second shell and the first shell. Moreover, by melting the raised portion to form the connecting weld, the melting of the material of the second shell and the first shell itself can be reduced, which can reduce or avoid the excessive melting of the material of the second shell and the first shell itself to affect the overall structure of the connection box, which helps to improve the overall structural stability of the connection box.

[0013] In a possible implementation manner, the first overlapping surface has the protruding portion.

[0014] In a possible implementation manner, the second overlapping surface has the protruding portion.

[0015] In a possible implementation, both the first overlap surface and the second overlap surface have a protrusion, the protrusion on the first overlap surface is a first protrusion, and the protrusion on the second overlap surface is a second protrusion. The first protrusion and the second protrusion are melted together to form the connecting weld.

[0016] In one possible implementation, the first shell further has a first enclosure portion, and the first enclosure portion is arranged around the outer periphery of the first lap joint. The first enclosure portion can provide a limit for the second shell, which can reduce or avoid the second shell from shifting or moving relative to the first shell during welding, and can effectively improve the smoothness of the fit between the second shell and the first shell, thereby effectively improving the stability of the welding between the second shell and the first shell. Moreover, the first enclosure portion can also cover the seam between the second shell and the first shell, which can reduce or avoid the seam between the second shell and the first shell from being exposed and affecting the overall appearance of the connection box, and help improve the overall aesthetics of the connection box.

[0017] In a possible implementation, a connecting piece is further included, one end of the connecting piece is welded to the second shell, and the other end of the connecting piece is welded to the first shell, and the first shell and the second shell are connected through the connecting piece. In this way, the structural requirements for the first shell and the second shell can be reduced, the structure of the first shell and the second shell can be simplified, and the flexibility of the setting of the first shell and the second shell can be improved, thereby reducing the design cost and production cost of the first shell and the second shell.

[0018] In a possible implementation, the melting point of the connector is between the melting point of the first shell and the melting point of the second shell. In this way, the second shell and the first shell can be made of materials with different melting points to meet the material property requirements of the second shell and the first shell, which can effectively meet the material selection requirements of the second shell and the first shell and improve the flexibility of material selection of the second shell and the first shell. The rationality of material selection of the connection box can be improved, which is conducive to reducing the overall material cost of the connection box.

[0019] In a possible implementation, the connector is located outside the first shell, and one end of the connector overlaps the first shell, and the other end of the connector overlaps the second shell, and the connector is welded to the first shell and the second shell at the overlapped parts. This can facilitate the setting of the connector, and can facilitate the alignment of the connector during the welding process so as to weld on the connector, which helps to improve the accuracy of welding and enhance the reliability and stability of the connection between the connector and the second shell and the first shell.

[0020] In a possible implementation, the first shell has a first overlap platform, one end of the connector overlaps the first overlap platform, and the other end of the connector overlaps the second shell. This can facilitate the arrangement of the connector, improve the accuracy of the fit between the connector and the second shell and the first shell, and thus facilitate the welding between the connector and the second shell and the first shell.

[0021] In one possible implementation, the first shell further has a second overlap platform, and the second overlap platform is located on a side of the first overlap platform close to the inside of the first shell. The second shell is overlapped on the second overlap platform, and the other end of the connector is overlapped on a side of the second shell that is away from the second overlap platform. The second overlap platform can limit and fix the second shell, which can improve the installation accuracy of the second shell on the first shell. Moreover, the second overlap platform can also reduce or avoid the displacement or movement of the second shell, which helps to improve the reliability and stability of the assembly between the second shell and the first shell.

[0022] In a possible implementation, the connecting member has a third protrusion and a fourth protrusion on one surface facing the first shell and the second shell. The third protrusion is located between the connecting member and the first shell, and the third protrusion is melted to form a connecting weld between the connecting member and the first shell. The fourth protrusion is located between the connecting member and the second shell, and the fourth protrusion is melted to form a connecting weld between the connecting member and the second shell.

[0023] The third protrusion and the fourth protrusion can increase the size of the connecting weld between the connecting piece and the second shell and the first shell, can increase the contact area between the connecting weld and the second shell and the first shell, can effectively reduce or avoid disconnection between the connecting piece and the second shell and the first shell, thereby effectively improving the firmness and reliability of the connection between the connecting piece and the second shell and the first shell.

[0024] In a possible implementation, the first shell has a fifth protrusion on a surface facing the connector, and the second shell has a sixth protrusion on a surface facing the connector. The fifth protrusion is melted to form a connection weld between the first shell and the connector, and the sixth protrusion is melted to form a connection weld between the second shell and the connector. The fifth protrusion and the sixth protrusion can increase the size of the connection weld between the connector and the second shell and the first shell, and can improve the reliability and firmness of the connection between the connector and the second shell and the first shell.

[0025] In a possible implementation, a second enclosure is further included, and the second enclosure is arranged around the outer periphery of the first lap platform. The second enclosure can limit the position of the connector, reduce or avoid the connector from shifting or moving on the first shell, and prevent the connector from moving and affecting the normal welding between the connector and the first shell and the second shell, which helps to improve the reliability and stability of the welding between the connector and the first shell and the second shell.

[0026] In a possible implementation, the connector covers the second shell and is welded to the second shell, the outer ring of the connector extends outward relative to the second shell to form a connecting portion, and the connecting portion overlaps the first shell and is welded to the first shell. The connector can improve the flexibility of the connection box customization and meet the special customization needs of users.

[0027] In a possible implementation, it also includes a splitter, the splitter and the adapter are located on the same housing and are arranged close to the adapter, and the splitter and the adapter are connected through an optical fiber. By arranging the splitter and the adapter on the same housing, the distance between the splitter and the adapter can be greatly shortened, so that when the splitter and the adapter are connected through an optical fiber, the length of the optical fiber can be set shorter, and the optical fiber between the splitter and the adapter does not need to be coiled and fixed, and the fiber coiling board and the structure of the card slot for fixing the optical fiber in the housing can be omitted, which can effectively reduce the material cost of the connection box. In addition, the assembly process of the fiber coiling board can be omitted, which can effectively simplify the assembly process of the connection box and reduce the assembly cost of the connection box. Moreover, in the connection box provided in the embodiment of the present application, the fiber coiling board and the related card slot structure are omitted, the length of the optical fiber between the splitter and the adapter is shorter, the cumbersome and complicated fiber coiling operation can be omitted, and the technical requirements for the operator can be reduced, thereby effectively reducing the complexity of the production of the connection box.

[0028] The present application also provides a communication system, comprising the connection box as described above and an optical fiber connector connected to an adapter on the connection box. The optical fiber connector may be the second connector as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a connection box is provided for an embodiment of the present application;

[0030] Figure 2 An exploded schematic diagram of a connection box at a viewing angle is provided for an embodiment of the present application;

[0031] Figure 3 An exploded schematic diagram of a connection box in another viewing angle is provided for an embodiment of the present application;

[0032] Figure 3A A schematic diagram of the structure of another connection box provided in an embodiment of the present application;

[0033] Figure 4 An exploded cross-sectional view of a welding method between a first shell and a second shell provided in an embodiment of the present application;

[0034] Figure 5 A cross-sectional view of a welding method between a first shell and a second shell provided in an embodiment of the present application;

[0035] Figure 5A An exploded cross-sectional view of another welding method between a first shell and a second shell provided in an embodiment of the present application;

[0036] Figure 5BA cross-sectional view of another welding method between a first shell and a second shell provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of a structure of a first shell and a second shell in a first matching mode provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of a structure of a second matching mode between a first shell and a second shell provided in an embodiment of the present application;

[0039] Figure 8 A schematic diagram of a structure of a third matching mode between a first shell and a second shell provided in an embodiment of the present application;

[0040] Fig. 9 A schematic diagram of a structure of a fourth matching mode between a first shell and a second shell provided in an embodiment of the present application;

[0041] Fig.10 A schematic diagram of the structure of another connection box provided in an embodiment of the present application;

[0042] Fig.11 An exploded sectional view of another connection box provided in an embodiment of the present application;

[0043] Fig.12 A cross-sectional view of another connection box provided in an embodiment of the present application;

[0044] Fig.13 A schematic diagram of a first structure of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell;

[0045] Fig.14 A second structural schematic diagram of a connector provided in an embodiment of the present application cooperating with a second shell and a first shell;

[0046] Fig.15 A third structural schematic diagram of a connector provided in an embodiment of the present application matching with a second shell and a first shell;

[0047] Fig.16 A fourth structural schematic diagram of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell;

[0048] Fig.17 A fifth structural schematic diagram of a connector provided in an embodiment of the present application matching with a second shell and a first shell;

[0049] Fig.18 A sixth structural schematic diagram of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell;

[0050] Fig.19 An exploded schematic diagram of another connection box provided in an embodiment of the present application;

[0051] Fig. 20 A schematic diagram of the structure of another connection member provided in an embodiment of the present application, connected to the second shell and the first shell;

[0052] Fig.21 A schematic diagram of the structure of a beam splitter provided in an embodiment of the present application, which is arranged on a second housing.

[0053] Description of reference numerals:

[0054] 100-connection box;

[0055] 101-housing;

[0056] 110 - first shell; 111 - accommodating cavity; 112 - first overlapping surface; 1121 - first protruding portion; 113 - first enclosure portion;

[0057] 114-first bridging platform; 115-second bridging platform; 116-fifth raised portion; 117-second enclosure portion;

[0058] 120 - second housing; 121 - second overlapping surface; 1211 - second raised portion; 122 - sixth raised portion;

[0059] 130-adapter; 131-first end; 132-second end;

[0060] 140-connecting member; 141-third protruding portion; 142-fourth protruding portion; 143-connecting portion; 144-avoidance hole;

[0061] 150-splitter;

[0062] 200-first connector;

[0063] 300 - second connector. DETAILED DESCRIPTION

[0064] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0065] OLT and ONU refer to the connection devices in the optical transmission network, and are two essential modules in the passive optical network (PON). ODN is a fiber-to-the-home (FTTH) optical cable network based on PON equipment. The role of ODN is to provide an optical transmission channel between OLT and ONU.

[0066] In ODN projects, a large number of box-type devices such as optical cross-connect boxes, optical distribution boxes, and optical fiber splitter boxes are used, and different numbers and types of passive optical devices are integrated in these devices to meet the needs of optical fiber deployment and management. These box-type devices are generally equipped with adapters, and the two connectors are positioned in the sleeves of the adapter to achieve the docking of two sections of optical fiber.

[0067] At present, in the related art, the connection box includes a shell and an adapter panel arranged on the shell, and an adapter is arranged on the adapter panel, one end of the adapter is located inside the shell, and the other end is located outside the shell. Among them, the end of the adapter located inside the shell is used to connect with the optical fiber connector inside the shell, and the end of the adapter located outside the shell is used to connect with the optical fiber connector outside the shell, so that the two optical fiber connectors inside and outside the shell can be connected through the adapter to realize the transmission of optical signals. At present, the adapter panel and the shell are usually connected by means of snap-on and screw fasteners, and a sealing ring is also arranged between the adapter panel and the shell to achieve sealing between the shell and the adapter panel.

[0068] However, in the above-mentioned connection box, the adapter panel and the shell are connected by means of snap-fit ​​and screws, and sealed by a sealing ring. The assembly of the screw fastener and the sealing ring requires strict control of torque. If the torque is too large, the sealing ring is easily crushed and the sealing fails. If the torque is too small, the connection force of the screw fastener is insufficient, and the deformation of the sealing ring is too small, resulting in failure. In addition, the sealing ring is also prone to sealing failure during long-term use, which reduces the stability and reliability of the seal between the adapter panel and the shell.

[0069] Moreover, the assembly of the sealing ring relies on manual work, which is difficult to achieve automated assembly, and its assembly efficiency is low, which reduces the overall assembly efficiency of the connection box.

[0070] In addition, the above-mentioned connection box has many parts and components and many assembly steps, which increases the time for assembling the connection box and reduces the efficiency of assembling the connection box.

[0071] In another related technology, the adapter in the connection box is usually separately injection molded with high-quality polymer materials, and then detachably connected to the adapter panel of the connection box through nut fasteners. A sealing ring is also provided between the adapter and the adapter panel to provide sealing between the adapter and the adapter panel.

[0072] However, the adapter needs to be locked on the housing with a nut fastener through a certain torque, and its assembly process requirements are relatively high, the assembly time is long, the installation process is relatively cumbersome, and the assembly cost of the connection box is increased.

[0073] Moreover, the threaded connection is prone to loosening during long-term use, thereby loosening the sealing ring between the adapter and the housing, thereby reducing the sealing performance between the adapter and the housing.

[0074] In addition, the adapters that are individually injection molded using high-quality polymer materials are relatively expensive, which increases the overall production cost of the connection box.

[0075] In order to solve the above problems, the researchers thought of improving the structure of the connection box. By sealing and welding the second shell and the first shell, it is possible to eliminate the need for a sealing ring between the second shell and the first shell, effectively reduce or avoid problems such as sealing failure between the second shell and the first shell, and effectively improve the stability and reliability of the seal between the second shell and the first shell. Moreover, the welding connection can realize mechanical automation operation, realize the automated assembly between the second shell and the first shell, and effectively improve the assembly efficiency between the second shell and the first shell.

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0077] It should be noted that the "box" mentioned in the present application does not limit the size and appearance of the embodiments of the present application. The connection box provided in the embodiments of the present application can be a box-type device such as an optical cross-connection box, an optical distribution box, an optical fiber splitter box, etc., or it can be a product with the characteristics of a switching element directly molded on any shell.

[0078] The embodiment of the present application provides a connection box, which can be an optical cross-connection box, an optical distribution box, an optical fiber splitter box, or other box-type equipment, or a product with switching component characteristics directly molded on any shell. In the embodiment of the present application, the connection box will be described as an optical fiber splitter box.

[0079] Figure 1 A schematic diagram of the structure of a connection box is provided for an embodiment of the present application. Figure 2 An exploded schematic diagram of a connection box at a viewing angle is provided for an embodiment of the present application. Figure 3 A schematic diagram of an exploded view of a connection box from another perspective is provided for an embodiment of the present application.

[0080] See also Figure 1 As shown, in the connection box 100 provided in the embodiment of the present application, the connection box 100 may include a housing 101 and an adapter 130 disposed on the housing 101, wherein the connection box 100 may include a housing 101 and an adapter 130 disposed on the housing 101. Figure 2 and Figure 3 As shown, the housing 101 may include a first shell 110 and a second shell 120, and the first shell 110 and the second shell 120 may be jointly arranged to form a receiving cavity 111. The adapter 130 may be located on one of the first shell 110 and the second shell 120. For example, the adapter 130 may be arranged on the first shell 110, or the adapter may also be arranged on the first shell 110. Figure 3 As shown in FIG. 8 , the second housing 120 is provided.

[0081] The adapter 130 may include a first end 131 and a second end 132, wherein the first end 131 of the adapter 130 may be located inside the housing 101, and the second end 132 may be located outside the housing 101. Other components for realizing the complete functions of the connection box 100 may also be disposed in the housing cavity 111 of the housing 101. For example, an optical splitter 150 (see Fig.21 As shown), fiber optic tray, fiber optic connector, etc.

[0082] The first end 131 of the adapter 130 can be used to connect with the first connector 200 inside the housing 101, and the second end 132 of the adapter 130 can be used to connect with the second connector 300 outside the housing 101. For example, the adapter 130 can be a fiber optic adapter, and the first connector 200 and the second connector 300 can both be fiber optic connectors. The first connector 200 and the second connector 300 can be connected through the adapter 130, so that the optical fibers inside the first connector 200 and the second connector 300 can be docked through the adapter 130 to achieve transmission of optical signals.

[0083] For example, the adapter 130 may have a sleeve, and the first connector 200 and the second connector 300 may have optical fibers. During the process of connecting the first connector 200 and the second connector 300 with the adapter 130, the optical fibers in the first connector 200 and the second connector 300 may be respectively inserted into the sleeves in the adapter 130, so that the two optical fibers can be coaxially connected through the sleeve, thereby allowing optical signals to be transmitted between the two optical fibers.

[0084] For example, the first connector 200 and the second connector 300 may be SC connectors (square connector; SC for short), and accordingly, the adapter 130 may be an SC adapter. Alternatively, the first connector 200 and the second connector 300 may also be DLC connectors (double lucent connector; DLC for short), and accordingly, the adapter 130 may be a DLC adapter. Alternatively, in some examples, the first connector 200 and the second connector 300 may also be MPO connectors (multi-fiber pull off; MPO for short), and accordingly, the adapter 130 may be an MPO adapter. In the embodiments of the present application, the specific models of the adapter 130, the first connector 200 and the second connector 300 are not limited.

[0085] The adapter and the housing may be an integrated structure, for example, the adapter 130 and the housing 101 may be formed by integral injection molding or integral stamping, so that the adapter 130 and the housing 101 are an integral whole. In this way, there is no need to set a structural member for connection and sealing between the adapter 130 and the housing 101.

[0086] For example, the adapter 130 and the housing 101 may be made of relatively low-cost plastic materials to reduce the production costs of the housing 101 and the adapter 130 .

[0087] The second housing 120 and the first housing 110 may be sealed and connected by welding. For example, the second housing 120 and the first housing 110 may be connected by laser welding, ultrasonic welding, hot plate welding, etc. For example, the components in the first housing 110 (for example, the optical splitter 150, the fiberboard, and the first connector 200, etc.) may be assembled in the first housing 110 first, and then the first connector 200 in the first housing 110 may be connected to the adapter 130. After the components in the first housing 110 are assembled and the components in the first housing 110 are assembled with the adapter 130, the second housing 120 may be installed on the first housing 110, and then the second housing 120 and the first housing 110 may be welded, so that the second housing 120 and the first housing 110 are sealed and connected by welding.

[0088] For example, the connecting weld between the first shell 110 and the second shell 120 can be a continuous weld to fill the gap between the first shell 110 and the second shell 120, so that the first shell 110 and the second shell 120 can be surrounded by a sealed accommodating cavity 111 to reduce or avoid external water stains or stains from entering the accommodating cavity 111 of the outer shell 101, effectively improve the cleanliness of the accommodating cavity 111, and prevent water stains from entering the accommodating cavity 111 and affecting the normal operation of the connection box 100, thereby effectively improving the reliability and stability of the connection box 100.

[0089] Compared with the related art in which the shell and the adapter panel are connected by snap-fitting and screw-fastening and sealed by a sealing ring, the present solution realizes a reliable sealing by welding the second shell 120 to the first shell 110. This eliminates the need for a sealing ring between the second shell 120 and the first shell 110, effectively reduces or avoids problems such as sealing failure between the second shell 120 and the first shell 110, and can effectively improve the stability and reliability of the sealing between the second shell 120 and the first shell 110.

[0090] Moreover, the welding connection can realize mechanical automated operation, and can realize automated assembly between the second shell 120 and the first shell 110 , and can effectively improve the assembly efficiency between the second shell 120 and the first shell 110 .

[0091] In addition, by welding the second shell 120 to the first shell 110, it is possible to eliminate the need for structural parts such as clips and screw fasteners on the second shell 120 and the first shell 110, which can effectively simplify the assembly process between the second shell 120 and the first shell 110 and effectively shorten the assembly time between the second shell 120 and the first shell 110, thereby effectively improving the assembly efficiency between the second shell 120 and the first shell 110.

[0092] Compared with another related art solution in which the adapter and the adapter panel are connected by nut fasteners, the embodiment of the present application makes the adapter 130 and the housing 101 an integrated structure, which can save the need for structural members (such as nut fasteners, etc.) for connection between the adapter 130 and the housing 101, and eliminates the need for an assembly process between the adapter 130 and the housing 101, which can effectively simplify the assembly operation of the connection box 100, shorten the assembly time of the connection box 100, and thus effectively reduce the assembly cost of the connection box 100.

[0093] Moreover, compared with achieving sealing between the adapter and the shell through a sealing ring, the integrated structure can effectively improve the reliability and stability of the seal between the adapter 130 and the shell 101, and can effectively reduce or avoid problems such as sealing failure between the adapter 130 and the shell 101.

[0094] In addition, compared to using high-quality polymer materials to make the adapter separately, the adapter 130 and the shell 101 in the embodiment of the present application are an integrated structure, and relatively low-cost plastic materials can be used, which can effectively reduce the material cost of the adapter 130 and the shell 101, thereby effectively reducing the overall material cost of the connection box 100.

[0095] Figure 3A A schematic diagram of the structure of another connection box provided in an embodiment of the present application.

[0096] Continue to see Figure 3 As shown, the first housing 110 may be a side housing, the second housing 120 may be a transfer panel, and the adapter 130 may be integrally formed on the transfer panel. For example, the adapter 130 and the transfer panel may be formed by integral injection molding or integral stamping, so that the adapter 130 and the transfer panel are an integral structure, thereby improving the sealing performance between the adapter 130 and the transfer panel.

[0097] Or, in some examples, see Figure 3A As shown, the first housing 110 may also be Figure 3 The upper housing shown in FIG. 1 , the second housing 120 may be a lower base plate, and the adapter 130 may be integrally formed on the upper housing. For example, the adapter 130 may be as shown in FIG. Figure 3 As shown in FIG. 1 , the adapter 130 is disposed on the side wall of the first housing 110 to facilitate docking between the adapter 130 and the first connector and the second connector.

[0098] The following description will be made by taking the second housing 120 as an adapter panel and the adapter 130 being integrally formed on the adapter panel as an example.

[0099] Figure 4 An exploded cross-sectional view of a welding method between a first shell and a second shell provided in an embodiment of the present application, Figure 5 A cross-sectional view of a welding method between a first shell and a second shell provided in an embodiment of the present application, Figure 5A An exploded cross-sectional view of another welding method between a first shell and a second shell provided in an embodiment of the present application, Figure 5B A cross-sectional view of another welding method between a first shell and a second shell provided in an embodiment of the present application.

[0100] See also Figure 4 and Figure 5As shown, the first shell 110 may have a first lap surface 112 at one end facing the second shell 120, and the second shell 120 may have a second lap surface 121 at one end facing the first shell 110. The second lap surface 121 on the second shell 120 may be overlapped on the first lap surface 112 of the first shell 110, and the connecting weld between the second shell 120 and the first shell 110 may be located between the first lap surface 112 and the second lap surface 121.

[0101] For example, the welded connection can be made by means of laser welding, see e.g. Figure 5 As shown, the welding surface between the first shell 110 and the second shell 120 can be as shown in FIG. Figure 5 The laser can be passed from the side of the second housing 120 facing away from the first housing 110 to the part where the second housing 120 and the first housing 110 contact (that is, the first overlapping surface 112 and the second overlapping surface 121). Figure 5 The laser is irradiated perpendicularly to the x direction of the laser beam onto the second shell 120, and then passes through the second shell 120 and is projected onto the first shell 110. At this time, the laser can melt the material of the contact portion between the second shell 120 and the first shell 110 to generate a connecting weld between the first overlapping surface 112 and the second overlapping surface 121, so that the second shell 120 and the first shell 110 can be connected through the connecting weld.

[0102] For example, the second shell 120 can be made of a light-transmitting material, and the laser can penetrate the second shell 120. The first shell 110 can be made of a non-light-transmitting material, and the laser cannot penetrate the first shell 110. In this way, when the laser penetrates the second shell 120 and reaches the first shell 110, the material of the contact portion between the second shell 120 and the first shell 110 can be melted to produce a connecting weld.

[0103] The first lap joint surface 112 and the second lap joint surface 121 can increase the contact area between the second shell 120 and the first shell 110, can reduce or avoid misalignment between the second shell 120 and the first shell 110, and can facilitate welding between the second shell 120 and the first shell 110, thereby effectively improving the reliability of welding between the second shell 120 and the first shell 110, and enhancing the firmness and reliability of the connection between the second shell 120 and the first shell 110.

[0104] The welding surface between the first shell 110 and the second shell 120 is as Figure 5As shown in the figure, it is perpendicular to the axial direction of the adapter 130, so that the laser can be uniformly irradiated onto the second shell 120 along a direction perpendicular to the second shell 120 (that is, along the axial direction of the adapter 130) to achieve welding between the first shell 110 and the second shell 120. The connecting weld between the first shell 110 and the second shell 120 is located on the same plane, which can make the connecting weld have better consistency, facilitate the control of the laser welding operation process, and help to improve the welding accuracy.

[0105] Moreover, during the welding process between the first shell 110 and the second shell 120, the pressing tool can be pressed onto the second shell 120. The second shell 120 is a plane, which can facilitate the fitting and fixation between the pressing tool and the second shell 120, and help improve the stability and reliability of the pressing of the pressing tool and the second shell 120, thereby improving the stability of the welding connection.

[0106] Or, in some examples, see Figure 5A and Figure 5B The welding surface between the first shell 110 and the second shell 120 can also be as follows Figure 5B As shown in FIG. 1 , the connecting weld is parallel to the axial direction of the adapter 130 (that is, perpendicular to the surface of the second shell 120), which can be understood as the connecting weld is located between the outer side of the second shell 120 and the inner wall of the first shell 110. During the welding process, the laser can be as follows: Figure 5B As shown, the laser is projected from the outside of the first shell 110 to the first shell 110 along the y direction, and then passes through the first shell 110 and is projected onto the second shell 120. In addition, during the welding process, as the welding position of the first shell 110 and the second shell 120 changes, the projection direction of the laser also changes accordingly, that is, during the welding process, the laser can move around the outside of the first shell 110 to form a closed connection weld between the first shell 110 and the second shell 120, so that the first shell 110 and the second shell 120 can be sealed and connected through the connection weld.

[0107] At this time, the first shell 110 can be made of a transparent material so that the laser can penetrate the first shell 110, and the second shell 120 can be made of a non-transparent material so that the laser cannot penetrate the second shell 120, so that the laser can melt the material at the contact point between the first shell 110 and the second shell 120 to form a connecting weld.

[0108] In the following, the welding surface between the first shell 110 and the second shell 120 is perpendicular to the axial direction of the adapter 130 (ie Figure 5 The welding method in ( ) is used as an example to illustrate.

[0109] Continue to see Figure 5As shown, the first shell 110 may also have a first enclosure portion 113, and the first enclosure portion 113 may be arranged around the outer periphery of the first lap joint surface 112. The first enclosure portion 113 may provide a limit for the second shell 120, thereby reducing or avoiding the displacement or movement of the second shell 120 relative to the first shell 110 during welding, and can effectively improve the smoothness of the fit between the second shell 120 and the first shell 110, thereby effectively improving the stability of the welding between the second shell 120 and the first shell 110.

[0110] Moreover, the first enclosure portion 113 can also cover the joint between the second shell 120 and the first shell 110, which can reduce or avoid the joint between the second shell 120 and the first shell 110 being exposed and affecting the overall appearance of the connection box 100, and help improve the overall aesthetics of the connection box 100.

[0111] Figure 6 A schematic diagram of a structure of a first shell and a second shell in a first matching mode provided in an embodiment of the present application, Figure 7 A schematic diagram of a structure of a second matching mode between a first shell and a second shell provided in an embodiment of the present application, Figure 8 A schematic diagram of a structure of a third matching mode between a first shell and a second shell provided in an embodiment of the present application, Fig. 9 A structural schematic diagram of a fourth matching method between a first shell and a second shell provided in an embodiment of the present application.

[0112] See also Figure 6 As shown, the first lap joint surface 112 and the second lap joint surface 121 can be as shown Figure 6 The structures shown are all planar structures. Alternatively, at least one of the first overlapping surface 112 and the second overlapping surface 121 may have a protrusion, for example, see Figure 7 As shown, a protrusion (eg, Figure 7 During the welding process, the raised portion on the first lap surface 112 can be melted to form a connecting weld to increase the size of the connecting weld, thereby effectively improving the reliability and stability of the connection between the second shell 120 and the first shell 110.

[0113] Alternatively, see Figure 8 As shown, a protrusion (eg Figure 8 The second protrusion 1211 in the welding process can be melted on the first overlapping surface 112 to form a connecting weld.

[0114] The raised portion can melt to form a connecting weld between the second shell 120 and the first shell 110 , which can increase the molten material of the connecting weld between the second shell 120 and the first shell 110 , helping to increase the firmness, reliability and sealing of the welding connection between the second shell 120 and the first shell 110 .

[0115] Moreover, by melting the protrusion to form a connecting weld, the melting of the materials of the second shell 120 and the first shell 110 can be reduced, and excessive melting of the materials of the second shell 120 and the first shell 110 can be reduced or avoided to affect the overall structure of the connection box 100, which helps to improve the overall structural stability of the connection box 100.

[0116] Or, in some examples, see Fig. 9 As shown, the protrusions may also be provided on both the first overlapping surface 112 of the first shell 110 and the second overlapping surface 121 of the second shell 120. Fig. 9 As shown, the protrusion arranged on the first overlapping surface 112 of the first shell 110 may be a first protrusion 1121, and the protrusion arranged on the second overlapping surface 121 of the second shell 120 may be a second protrusion 1211. The first protrusion 1121 and the second protrusion 1211 may be melted together to form a connecting weld.

[0117] For example, during the assembly of the second shell 120 and the first shell 110, the first protrusion 1121 on the first overlap surface 112 and the second protrusion 1211 on the second overlap surface 121 may abut against each other as shown in the figure. During the welding process, the first protrusion 1121 and the second protrusion 1211 may be melted, and the melted first protrusion 1121 and the second protrusion 1211 may be fused to each other to form a connecting weld, so that the second shell 120 and the first shell 110 can be sealed and connected through the connecting weld.

[0118] Fig.10 A schematic diagram of the structure of another connection box provided in an embodiment of the present application.

[0119] In another possible implementation, as shown in FIG. 10 , the connection box 100 may further include a connection member 140, one end of which may be welded to the second shell 120, and the other end of which may be welded to the first shell 110, and the first shell 110 and the second shell 120 may be connected via the connection member 140. For example, when the contact area between the first shell 110 and the second shell 120 is small and it is inconvenient to directly weld, or when the structures of the first shell 110 and the second shell 120 are relatively complex in order to weld the first shell 110 and the second shell 120 to each other, at this time, the connection member 140 may be provided between the first shell 110 and the second shell 120, so that the first shell 110 and the second shell 120 may be connected via the connection member 140, which may reduce the structural requirements for the first shell 110 and the second shell 120, simplify the structures of the first shell 110 and the second shell 120, and improve the flexibility of the settings of the first shell 110 and the second shell 120, thereby reducing the design cost and production cost of the first shell 110 and the second shell 120.

[0120] The melting point of the connector 140 may be between the melting point of the first shell 110 and the melting point of the second shell 120. For example, the melting point of the connector 140 may be higher than the melting point of the first shell 110 and lower than the melting point of the second shell 120, or the melting point of the connector 140 may be higher than the melting point of the second shell 120 and lower than the melting point of the first shell 110. When the melting point difference between the materials of the second shell 120 and the first shell 110 is large and it is difficult to weld, the connector 140 is arranged between the second shell 120 and the first shell 110, and the melting point of the connector 140 is between the melting point of the first shell 110 and the melting point of the second shell 120. In this way, the melting point of the connecting member 140 can be closely separated from the melting points of the second shell 120 and the first shell 110, and the connecting member 140 can be welded to the second shell 120 and the first shell 110 respectively, so that one end of the connecting member 140 is connected to the second shell 120 and the other end is connected to the first shell 110, thereby allowing the second shell 120 and the first shell 110 to be connected through the connecting member 140.

[0121] In this way, the second shell 120 and the first shell 110 can select materials with different melting points to meet the material property requirements of the second shell 120 and the first shell 110, which can effectively meet the material selection requirements of the second shell 120 and the first shell 110 and improve the flexibility of material selection of the second shell 120 and the first shell 110. For example, in the process of material selection, for structural parts with high requirements for structural strength and precision, higher-quality materials can be selected, while for structural parts with low requirements for structural strength or precision, lower-cost materials can be selected. In this way, the rationality of material selection of the connection box 100 can be improved, which is conducive to reducing the overall material cost of the connection box 100.

[0122] Continue to see Fig.10 As shown, the connecting member 140 may be located outside the first shell 110, and one end of the connecting member 140 may be overlapped on the first shell 110, and the other end may be overlapped on the second shell 120. During the assembly process, the second shell 120 may be assembled on the first shell 110 first, and then the connecting member 140 may be pressed on the outside of the second shell 120 and the first shell 110, and then the connecting member 140 may be welded to the second shell 120 and the first shell 110 respectively, so as to generate connecting welds between the connecting member 140 and the second shell 120, and between the connecting member 140 and the first shell 110, so that the connecting member 140 may be connected to the second shell 120 and the first shell 110 respectively through the connecting welds, so that the second shell 120 and the first shell 110 may be connected through the connecting member 140.

[0123] For example, the connector 140 may be made of a light-transmitting material, and the second shell 120 and the first shell 110 may be made of a non-light-transmitting material. During the welding process of the connector 140 and the second shell 120, the laser may penetrate the connector 140 and be transmitted to the second shell 120, and then melt the material at the contact portion between the second shell 120 and the connector 140 to form a connecting weld between the connector 140 and the second shell 120, so that the connector 140 and the second shell 120 can be connected through the connecting weld.

[0124] Accordingly, during the welding process of the connector 140 and the first shell 110, the laser can penetrate the connector 140 and be transmitted to the first shell 110, and then melt the material at the contact portion between the first shell 110 and the connector 140 to form a connecting weld between the connector 140 and the first shell 110, so that the connector 140 and the first shell 110 can be connected through the connecting weld.

[0125] By setting the connecting member 140 on the outside of the first shell 110, it is convenient to set the connecting member 140. During the welding process, it is easy to locate the connecting member 140 so that welding can be performed on the connecting member 140, which helps to improve the accuracy of welding and enhance the reliability and stability of the connection between the connecting member 140 and the second shell 120 and the first shell 110.

[0126] Fig.11 An exploded sectional view of another connection box provided in an embodiment of the present application, Fig.12 A cross-sectional view of another connection box provided in an embodiment of the present application.

[0127] See also Fig.11 and Fig.12 As shown, a first overlap platform 114 may be provided on the first shell 110, one end of the connecting member 140 may be overlapped on the first overlap platform 114, and the other end of the connecting member 140 may be overlapped on the second shell 120, so that it is convenient to set up the connecting member 140, and it is possible to improve the accuracy of the matching between the connecting member 140 and the second shell 120 and the first shell 110, thereby facilitating the welding between the connecting member 140 and the second shell 120 and the first shell 110.

[0128] The welding surface between the connecting member 140 and the first shell 110 can be located between the connecting member 140 and the first bridging platform 114, that is, the welding surface between the connecting member 140 and the first shell 110 is perpendicular to the axial direction of the adapter 130, and the laser can be uniformly Fig.12 The laser beam is irradiated to the connecting member 140 in the x direction, and then passes through the connecting member 140 and is projected onto the first shell 110 to melt the material at the contact portion between the connecting member 140 and the first shell 110 to form a connecting weld. In this way, the connecting weld between the connecting member 140 and the first shell 110 can be located in the same plane, the connecting weld can have better consistency, the operation process of laser welding can be easily controlled, and the welding accuracy can be improved.

[0129] Moreover, the pressing tool can be pressed onto the connector 140, and the pressing tool and the connector 140 form a planar fit, which can facilitate the fitting and fixation between the pressing tool and the connector 140, and help improve the stability and reliability of the pressing of the pressing tool and the connector 140, thereby improving the stability of the welding connection.

[0130] Alternatively, in some examples, the welding surface between the connector 140 and the first shell 110 may also be parallel to the axial direction of the adapter 130 (that is, perpendicular to the surface of the second shell 120), and it can be understood that the connecting weld is located between the outer side of the connector 140 and the inner wall of the first shell 110. During the welding process, the laser can be Fig.12The y direction in the laser beam is projected from the outside of the first shell 110 to the connector 140, and then passes through the first shell 110 and is projected onto the connector 140. In addition, during the welding process, as the welding position of the first shell 110 and the connector 140 changes, the projection direction of the laser beam also changes accordingly, that is, during the welding process, the laser beam can move around the outside of the first shell 110 to form a closed connection weld between the first shell 110 and the connector 140, so that the first shell 110 and the connector 140 can be sealed and connected through the connection weld.

[0131] Continue to see Fig.11 and Fig.12 As shown, a second overlapping platform 115 can also be provided on the first shell 110. The second overlapping platform 115 can be located on a side of the first overlapping platform 114 close to the interior of the first shell 110. The second shell 120 can be overlapped on the second overlapping platform 115, and the other end of the connecting member 140 can be overlapped on a side of the second shell 120 facing away from the second overlapping platform 115.

[0132] For example, in the process of assembling the second shell 120 to the first shell 110, the second shell 120 can be installed on the first shell 110 first. When the second shell 120 abuts against the second bridging platform 115, it means that the second shell 120 is installed in a suitable position. At this time, the connecting member 140 can be placed on the second shell 120 and the first bridging platform 114, and then the connecting member 140 is welded so that the connecting member 140 can be welded to the second shell 120 and the first bridging platform 114 respectively, so that the first shell 110 and the second shell 120 can be connected through the connecting member.

[0133] The second bridging platform 115 can limit and fix the second housing 120, which can improve the installation accuracy of the second housing 120 on the first housing 110. In addition, the second bridging platform 115 can also reduce or avoid the deviation or movement of the second housing 120, which helps to improve the reliability and stability of the assembly between the second housing 120 and the first housing 110.

[0134] Continue to see Fig.12 As shown, in the embodiment of the present application, the first shell 110 may also have a second enclosure portion 117, and the second enclosure portion 117 may be arranged around the outer periphery of the first lap platform 114. The second enclosure portion 117 may limit the connecting member 140, thereby reducing or avoiding the displacement or movement of the connecting member 140 on the first shell 110, and preventing the connecting member 140 from moving and affecting the normal welding between the connecting member 140 and the first shell 110 and the second shell 120, thereby helping to improve the reliability and stability of the welding between the connecting member 140 and the first shell 110 and the second shell 120.

[0135] Fig.13 A schematic diagram of a first structure of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell, Fig.14 A second structural schematic diagram of a connector provided in an embodiment of the present application cooperating with a second shell and a first shell, Fig.15 A third structural schematic diagram of a connector provided in an embodiment of the present application cooperating with a second shell and a first shell.

[0136] See also Fig.13 As shown, the side where the second housing 120 cooperates with the connector 140 can be as shown in FIG. Fig.13 As shown, the second shell 120 is flush with the first lap platform 114, that is, the side of the second shell 120 that matches the connecting member 140 is located in the same plane as the first lap platform 114. At this time, the side of the connecting member 140 that matches the second shell 120 and the first shell 110 can also be flat to improve the flatness of the matching between the connecting member 140, the second shell 120 and the first shell 110, thereby effectively improving the welding performance between the connecting member 140, the second shell 120 and the first shell 110.

[0137] Alternatively, in some examples, the second housing 120 and the first bridge 114 may be in a stepped shape, for example, see Fig.14 As shown, the side of the second housing 120 facing the connecting member 140 can be as shown in FIG. Fig.14 The plane shown is higher than the first connecting platform 114 , and accordingly, the side of the connecting member 140 in contact with the first connecting platform 114 may protrude beyond the side of the connecting member 140 in contact with the second shell 120 .

[0138] Alternatively, see Fig.15 As shown, the plane of the first bridging platform 114 may be higher than the side of the second shell 120 facing the connecting member 140, and accordingly, the side of the connecting member 140 in contact with the second shell 120 may protrude from the side of the connecting member 140 in contact with the first bridging platform 114, so as to improve the reliability of the matching between the connecting member 140, the second shell 120 and the first shell 110.

[0139] Specifically, the positional relationship between the surface of the second shell 120 that cooperates with the connecting member 140 and the first connecting platform 114 can be selected and set according to a specific application scenario.

[0140] Fig.16 A fourth structural schematic diagram of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell, Fig.17 A fifth structural schematic diagram of a connector provided in an embodiment of the present application in cooperation with a second shell and a first shell, Fig.18A sixth structural schematic diagram of a connector provided in an embodiment of the present application cooperating with a second shell and a first shell.

[0141] See also Fig.16 As shown, in a possible implementation, the connector 140 may have a third protrusion 141 and a fourth protrusion 142 on one side facing the first shell 110 and the second shell 120. For example, the third protrusion 141 and the fourth protrusion 142 may be an integral structure with the connector 140. The third protrusion 141 may be located between the connector 140 and the first shell 110, and the third protrusion 141 may be melted to form a connecting weld between the connector 140 and the first shell 110.

[0142] During the welding process, the third protrusion 141 can be melted, and the melted third protrusion 141 can fill the contact area between the connector 140 and the first shell 110, and the melted third protrusion 141 can be bonded to the first shell 110, so that the first shell 110 and the connector 140 can be connected through the melted third protrusion 141.

[0143] The third protrusion 141 can increase the size of the connecting weld between the connecting piece 140 and the first shell 110, can improve the contact area between the first shell 110 and the connecting weld, can effectively reduce or avoid disconnection between the connecting piece 140 and the first shell 110, thereby effectively improving the firmness and reliability of the connection between the connecting piece 140 and the first shell 110.

[0144] Correspondingly, the melted fourth protrusion 142 can fill the contact area between the connector 140 and the second shell 120 , and the melted fourth protrusion 142 can be bonded to the second shell 120 , so that the first shell 110 and the second shell 120 can be connected through the melted fourth protrusion 142 .

[0145] The fourth protrusion 142 can increase the size of the connecting weld between the connecting member 140 and the second shell 120, can increase the contact area between the second shell 120 and the connecting weld, and can effectively reduce or avoid disconnection between the connecting member 140 and the second shell 120, thereby effectively improving the firmness and reliability of the connection between the connecting member 140 and the second shell 120.

[0146] See also Fig.17As shown, in another possible implementation, the first shell 110 may have a fifth protrusion 116 on one side facing the connector 140, and the second shell 120 may have a sixth protrusion 122 on one side facing the connector 140. The fifth protrusion 116 may be melted to form a connecting weld between the first shell 110 and the connector 140, and the sixth protrusion 122 may be melted to form a connecting weld between the second shell 120 and the connector 140.

[0147] For example, the fifth protrusion 116 and the first shell 110 may be an integral structure, and the sixth protrusion 122 and the second shell 120 may be an integral structure. During the welding process, the fifth protrusion 116 may be melted, and the melted fifth protrusion 116 may be filled in the contact portion between the connector 140 and the first shell 110, and the melted fifth protrusion 116 may be bonded to the connector 140, so that the first shell 110 and the connector 140 may be connected through the melted fifth protrusion 116.

[0148] The fifth protrusion 116 can increase the size of the connecting weld between the connecting piece 140 and the first shell 110, can improve the contact area between the first shell 110 and the connecting weld, can effectively reduce or avoid the disconnection between the connecting piece 140 and the first shell 110, thereby effectively improving the firmness and reliability of the connection between the connecting piece 140 and the first shell 110.

[0149] Correspondingly, the melted sixth protrusion 122 can fill the contact portion between the connector 140 and the second shell 120 , and the melted sixth protrusion 122 can be bonded to the connector 140 , so that the first shell 110 and the second shell 120 can be connected through the melted sixth protrusion 122 .

[0150] The sixth protrusion 122 can increase the size of the connecting weld between the connecting member 140 and the second shell 120, can increase the contact area between the second shell 120 and the connecting weld, and can effectively reduce or avoid disconnection between the connecting member 140 and the second shell 120, thereby effectively improving the firmness and reliability of the connection between the connecting member 140 and the second shell 120.

[0151] Or, in another possible implementation, see Fig.18As shown, the connecting member 140 may have an integrally formed third protrusion 141 and a fourth protrusion 142 on one side facing the first shell 110 and the second shell 120, and the first shell 110 may have an integrally formed fifth protrusion 116 and a sixth protrusion 122 on one side facing the connecting member 140 and the second shell 120 may have an integrally formed fifth protrusion 116 and a sixth protrusion 122, respectively. The fifth protrusion 116 may be opposite to the third protrusion 141, and the sixth protrusion 122 may be opposite to the fourth protrusion 142.

[0152] During the welding process, the third protrusion 141 and the fifth protrusion 116 can be melted and fused to each other to form a connection weld between the connector 140 and the first shell 110, and the fourth protrusion 142 and the sixth protrusion 122 can be melted and fused to each other to form a connection weld between the connector 140 and the second shell 120. In this way, the size of the connection weld between the connector 140 and the first shell 110 and the second shell 120 can be further increased, thereby further improving the reliability and firmness of the connection between the connector 140 and the first shell 110 and the second shell 120.

[0153] Fig.19 This is an exploded schematic diagram of another connection box provided in an embodiment of the present application. Fig. 20 A schematic diagram of the structure of another connection member provided in an embodiment of the present application, which is connected to a second shell and a first shell.

[0154] See also Fig.19 and Fig. 20 As shown, in another possible implementation, the connecting member 140 can also be covered on the second shell 120 and welded to the second shell 120, and the outer ring of the connecting member 140 can extend outward relative to the second shell 120 to form a connecting portion 143, and the connecting portion 143 can be overlapped on the first shell 110 and welded to the first shell 110.

[0155] The connector 140 can also serve as a decoration for the connection box 100. For example, a logo or trademark can be provided on the connector 140. For example, according to the user's usage requirements, a specified logo, identification symbol, product specification or trademark can be provided on the connector 140. Alternatively, according to the user's customization requirements, the connector 140 can also be set to different colors. In this way, during the customization process, the connector 140 only needs to be produced separately as required and assembled on the connection box 100. There is no need to remake the second shell 120 and the adapter of the entire connection box 100, which can effectively reduce the customization cost of the connection box 100, improve the flexibility of the customization of the connection box 100, and meet the special customization needs of users.

[0156] For example, a relief hole 144 may be provided on the connecting member 140 , and the second end 132 of the adapter 130 may pass through the relief hole 144 and extend out of the connecting member 140 to be connected to the second connector 300 .

[0157] In the related art, the optical splitter in the connection box is usually arranged at one end of the housing away from the adapter panel, and the optical splitter and the adapter are connected through optical fibers. A fiber tray is usually arranged in the housing, one end of which is connected to the adapter panel, and the optical splitter is usually arranged at one end of the fiber tray away from the adapter panel.

[0158] The fiberboard is usually separately injection molded with high-quality polymer materials, and then connected to the adapter panel by means of snaps, etc. There are also multiple card slots on the fiberboard. Usually, the optical fiber length between the optical splitter and the adapter is reserved longer to reduce or avoid the normal connection between the optical splitter and the adapter being affected by the short optical fiber. The excess optical fiber is usually coiled on the fiberboard, and the optical fiber is also stuck in the card slot, so that the optical fiber can be fixed on the fiberboard through the card slot to improve the regularity and firmness of the optical fiber on the fiberboard.

[0159] However, in the above-mentioned connection box, the fiber coiling board made of high-quality polymer material has a high preparation cost, which increases the material cost of the connection box, and the assembly process between the fiber coiling board and the housing is relatively cumbersome and complicated, which increases the assembly cost of the connection box. Moreover, the process of winding the optical fiber on the fiber coiling board and clamping it in the clamping slot is cumbersome and complicated, which requires high technical skills of the staff to coil the fiber, increases the complexity of fiber coiling, and thus increases the complexity of the production of the connection box.

[0160] Fig.21 A schematic diagram of the structure of a beam splitter provided in an embodiment of the present application, which is arranged on a second housing.

[0161] See also Fig.21 As shown, the connection box 100 may further include a splitter 150, which may be located on the same housing as the adapter 130 and disposed close to the adapter 130. Figure 3A When the adapter 130 is disposed on the first housing 110, the beam splitter 150 may also be disposed on the first housing 10, and the beam splitter 150 may be disposed close to the adapter 130. Fig.21 When the optical splitter 150 is disposed on the second housing 120 as shown in FIG. 1 , the optical splitter 150 may also be disposed on the second housing 120. The optical splitter 150 and the adapter 130 may be connected via an optical fiber. For example, a plurality of optical fibers may be disposed in the accommodating cavity 111 of the housing 101, one end of each optical fiber may be connected to the first end 131 of the adapter 130, and the other end of the optical fiber may be connected to the optical splitter 150.

[0162] For example, the optical splitter 150 may have an input end and an output end, and a plurality of adapters 130 may be provided on the housing 101, wherein a first end 131 of one of the adapters 130 may be connected to the input end of the optical splitter 150 through an optical fiber, and the first ends 131 of the remaining adapters 130 may be connected to the output end of the optical splitter 150 through an optical fiber. In this way, the adapter 130 connected to the input end of the optical splitter 150 is the input adapter 130, and the adapter 130 connected to the output end of the optical splitter 150 is the output adapter 130, and a signal may enter through the input adapter 130, and then be divided into a plurality of signal output ends through the optical splitter 150 to be outputted externally.

[0163] By arranging the optical splitter 150 and the adapter on the same housing, the distance between the optical splitter 150 and the adapter 130 can be greatly shortened, so that when the optical splitter 150 and the adapter 130 are connected via an optical fiber, the length of the optical fiber can be set shorter, and the optical fiber between the optical splitter 150 and the adapter 130 does not need to be coiled and fixed, and the fiber coiling board and the card slot for fixing the optical fiber in the housing 101 can be omitted, which can effectively reduce the material cost of the connection box 100. In addition, the assembly process of the fiber coiling board can be omitted, which can effectively simplify the assembly process of the connection box 100 and reduce the assembly cost of the connection box 100.

[0164] Moreover, in the connection box 100 provided in the embodiment of the present application, the fiber coiling board and the related card slot structure are omitted, and the length of the optical fiber between the splitter 150 and the adapter 130 is shorter, which can eliminate the tedious and complicated fiber coiling operation and reduce the technical requirements for the operators, thereby effectively reducing the complexity of the production of the connection box 100.

[0165] The present application also provides a communication system, which may include a connection box 100 in any of the above scenarios and an optical fiber connector connected to an adapter 130 on the connection box 100. The optical fiber connector may be the second connector 300 described above.

[0166] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0167] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A connection box, characterized in that: It comprises a housing (101) and an adapter (130) arranged on the housing (101); The housing (101) comprises a first shell (110) and a second shell (120), wherein the first shell (110) and the second shell (120) are jointly arranged to form a receiving cavity (111), and the adapter (130) is located on one of the first shell (110) and the second shell (120); The adapter (130) comprises a first end (131) and a second end (132), wherein the first end (131) is located inside the housing, and the second end (132) is located outside the housing; The first end (131) of the adapter (130) is used to connect to a first connector (200) in the accommodating cavity (111), and the second end (132) of the adapter (130) is used to connect to a second connector (300) outside the housing (101); The adapter (130) and the housing (101) are of an integrated structure, and the first shell (110) and the second shell (120) are sealed and connected by welding.

2. The connection box according to claim 1, characterized in that: The first shell (110) is a side shell, the second shell (120) is a transfer panel, and the adapter (130) is integrally formed on the transfer panel.

3. The connection box according to claim 1, characterized in that: The first shell (110) is an upper shell, the second shell (120) is a lower base plate, and the adapter (130) is integrally formed on the upper shell.

4. The connection box according to any one of claims 1 to 3, characterized in that: One end of the first shell (110) facing the second shell (120) has a first overlapping surface (112); The second shell (120) has a second lap surface (121) at one end facing the first shell (110), the second lap surface (121) is overlapped on the first lap surface (112), and the connecting weld between the second shell (120) and the first shell (110) is located between the first lap surface (112) and the second lap surface (121).

5. The connection box according to claim 4, characterized in that: At least one of the first overlapping surface (112) and the second overlapping surface (121) has a protrusion, and the protrusion is melted to form the connecting weld.

6. The connection box according to claim 5, characterized in that: The first overlapping surface (112) has the protruding portion.

7. The connection box according to claim 5, characterized in that: The second overlapping surface (121) has the protruding portion.

8. The connection box according to claim 5, characterized in that: The first overlapping surface (112) and the second overlapping surface (121) both have a protrusion; The protrusion on the first overlapping surface (112) is a first protrusion (1121), and the protrusion on the second overlapping surface (121) is a second protrusion (1211); The first protrusion (1121) and the second protrusion (1211) are melted together to form the connecting weld.

9. The connection box according to claim 4, characterized in that: The first shell (110) also has a first enclosure portion (113), and the first enclosure portion (113) is arranged around the outer periphery of the first overlapping surface (112).

10. The connection box according to any one of claims 1 to 3, characterized in that: It also includes a connecting piece (140), one end of which is welded to the second shell (120), and the other end of which is welded to the first shell (110), so that the first shell (110) and the second shell (120) are connected via the connecting piece (140).

11. The connection box according to claim 10, characterized in that: The melting point of the connecting member (140) is between the melting point of the first shell (110) and the melting point of the second shell (120).

12. The connection box according to claim 10, characterized in that: The connecting member (140) is located outside the first shell (110), and one end of the connecting member (140) is overlapped on the first shell (110), and the other end of the connecting member (140) is overlapped on the second shell (120); The connecting piece (140) is welded to the first shell (110) and the second shell (120) at overlapping locations.

13. The connection box according to claim 12, characterized in that: The first shell (110) has a first overlapping platform (114), one end of the connecting member (140) is overlapped on the first overlapping platform (114), and the other end of the connecting member (140) is overlapped on the second shell (120).

14. The connection box according to claim 13, characterized in that: The first shell (110) also has a second connecting platform (115), and the second connecting platform (115) is located on a side of the first connecting platform (114) close to the inside of the first shell (110); The second shell (120) is overlapped on the second overlap platform (115), and the other end of the connecting member (140) is overlapped on a side of the second shell (120) facing away from the second overlap platform (115).

15. The connection box according to claim 10, characterized in that: The connecting member (140) has a third protrusion (141) and a fourth protrusion (142) on one surface facing the first shell (110) and the second shell (120); The third protrusion (141) is located between the connecting member (140) and the first shell (110), and the third protrusion (141) is melted to form a connecting weld between the connecting member (140) and the first shell (110); The fourth protrusion (142) is located between the connecting member (140) and the second shell (120), and the fourth protrusion (142) is melted to form a connecting weld between the connecting member (140) and the second shell (120).

16. The connection box according to any one of claims 12 to 15, characterized in that: A fifth protrusion (116) is provided on a surface of the first shell (110) facing the connecting member (140), and a sixth protrusion (122) is provided on a surface of the second shell (120) facing the connecting member (140); The fifth protrusion (116) is melted to form a connecting weld between the first shell (110) and the connecting member (140); The sixth protrusion (122) is melted to form a connecting weld between the second shell (120) and the connecting member (140).

17. The connection box according to claim 13 or 14, characterized in that: It also includes a second enclosure portion (117), wherein the second enclosure portion (117) is arranged around the outer periphery of the first overlapping platform (114).

18. The connection box according to claim 10, characterized in that: The connecting member (140) covers the second shell (120) and is welded to the second shell (120); The outer ring of the connecting member (140) extends outwardly relative to the second shell (120) to form a connecting portion (143); the connecting portion (143) is overlapped on the first shell (110) and is welded to the first shell (110).

19. The connection box according to any one of claims 1 to 3, characterized in that: It also includes an optical splitter (150), which is located on the same housing as the adapter (130) and is arranged close to the adapter (130), and the optical splitter (150) and the adapter (130) are connected via an optical fiber.

20. A communication system, characterized in that: The invention comprises a connection box as claimed in any one of claims 1 to 19 and an optical fiber connector connected to an adapter on the connection box.

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