CN116360041A

CN116360041A - Connection box

Info

Publication number: CN116360041A
Application number: CN202310242526.XA
Authority: CN
Inventors: 李东; 刘彦君; 聂海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-06-30

Abstract

The embodiment of the application provides a connection box, which comprises a shell, at least one first adapter piece and at least one second adapter piece, wherein the at least one first adapter piece and the at least one second adapter piece are arranged on the shell. The first adapter piece is used for being connected with the first connector, the second adapter piece is used for being connected with the second connector, and the first connector and the second connector are optical fiber connectors with different models. The first adapter and the second adapter are of an integrated structure with the housing. Therefore, structural members for connection are omitted from being arranged between the adapter and the adapter panel, the assembly operation of the connecting box can be effectively simplified, the assembly time of the connecting box is shortened, and the assembly cost of the connecting box is effectively reduced. In addition, the reliability and stability of the sealing between the adapter and the adapter panel can be effectively improved, and the problems of sealing failure and the like between the adapter and the adapter panel can be effectively reduced or avoided.

Description

Connection box

Technical Field

The application relates to the technical field of communication connection, in particular to a connection box.

Background

The optical distribution network (Optical Distribution Network, ODN) refers to a network consisting of all passive optical fibers and passive devices (such as optical splitters) between the optical line terminal (Optical Line Terminal, OLT) and the optical network units (Optical Network Unit, ONUs). The ODN connects one OLT device and a plurality of ONU devices to provide bi-directional transmission of optical signals. The ODN engineering adopts a connection box (such as an optical cross-connecting box, an optical distribution box, an optical fiber splitting box and the like), and different numbers and different types of passive optical devices are integrated inside the connection boxes so as to meet the demands of optical fiber deployment and management.

With the increasing competition of ODN industry, the cost problem of the connection box product has become one of the important problems, and the market has unprecedented strong demands for low cost and high reliability of the connection box product. In the related art, the connection box comprises a shell and an adapter arranged on the shell, wherein one end of the adapter is positioned inside the shell, and the other end of the adapter is positioned outside the shell. The two ends of the optical fiber are respectively connected with a connector positioned in the shell and a connector positioned outside the shell so as to realize the butt joint of two sections of optical fibers. Under the general circumstances, the casing of connection box is great, and is low to the requirement of dimensional accuracy, and the adapter is high to the requirement of dimensional accuracy, generally selects the high polymer material production that dimensional stability is good, weatherability is good, after adapter and casing separate production, the rethread nut fastener is with the adapter equipment on the casing.

However, the above assembly method is complicated, the assembly cost of the connection box is increased, and the nut fastener is easy to loose, so that the problems of falling off of the adapter, sealing failure and the like are caused, and the reliability of the connection box is reduced.

Disclosure of Invention

The application provides a connection box to in solving current connection box, connect through nut fastener between adapter and the casing, the higher and relatively poor problem of product reliability of assembly cost.

The application provides a connection box, which comprises a shell, at least one first adapter piece and at least one second adapter piece, wherein the at least one first adapter piece and the at least one second adapter piece are arranged on the shell; the first adapter is used for being connected with a first connector, the second adapter is used for being connected with a second connector, and the first connector and the second connector are optical fiber connectors with different types; the first adapter, the second adapter and the third adapter are of an integrated structure with the shell.

Through making first adaptor and second adaptor and shell structure as an organic whole, can save to set up the structure (e.g. nut fastener etc.) that is used for connecting between adaptor and switching panel, need not to carry out the equipment process between adaptor and the switching panel, can effectively simplify the equipment operation of connection box, shorten the assembly duration of connection box to effectively reduce the equipment cost of connection box. Moreover, the integrated structure can effectively improve the reliability and stability of the seal between the adapter and the adapter panel, and can effectively reduce or avoid the problems of sealing failure and the like between the adapter and the adapter panel. In addition, through making adaptor (first adaptor and second adaptor) and switching panel be integrated structure, can adopt the plastic raw materials that the cost is lower relatively, can effectively reduce the material cost of adaptor and switching panel to effectively reduce the holistic material cost of connecting box.

In addition, through set up first adaptor and second adaptor on the switching panel to make two kinds of adaptors can be connected with the fiber connector of two kinds of different models, make the connection box can satisfy the connection demand of different models connectors, effectively improved the flexibility of connection box.

In one possible implementation manner, the optical fiber connector further comprises a third adapter integrally formed with the housing, wherein the third adapter is used for being connected with a third connector, and the third connector is an optical fiber connector with different types from the first connector and the third connector. Therefore, the connecting box can be connected with three different optical fiber connectors simultaneously, the connecting box can meet the connection requirements of more types of connectors, the flexibility of the cooperation between the connecting box and the optical fiber connectors can be effectively improved, and the universality of the connecting box is improved.

In one possible implementation manner, the portable electronic device further comprises an identification panel, wherein the identification panel is positioned on the outer side of the shell and is detachably connected with the shell; the position, opposite to the first adapter, the second adapter and the third adapter, of the identification panel is provided with an avoidance hole; one end of the first adapter, one end of the second adapter and one end of the third adapter are communicated with the inside of the shell; the other ends of the first adapter, the second adapter and the third adapter are communicated with the outside of the shell through the avoidance holes.

In this way, in the customization process, the identification panel is only required to be produced separately and assembled on the shell of the connection box. The shell and the adapter of the whole connecting box are not required to be manufactured again, the customizing cost of the connecting box can be effectively reduced, the customizing flexibility of the connecting box is improved, and the special customizing requirement of a user is met.

In one possible implementation, the first adapter includes a first inner adapter portion and a first outer adapter portion that are in communication; the first inner adapter extends toward and communicates with the interior of the housing, and the first outer adapter extends toward and communicates with the exterior of the housing; the first connector includes a first inner connector located inside the housing and a first outer connector located outside the housing; the first inner adapter is used for being connected with the first inner connector, and the first outer adapter is used for being connected with the first outer connector.

In one possible implementation, the second adapter includes a second inner adapter portion and a second outer adapter portion that are in communication; the second inner adapter extends toward and communicates with the interior of the housing, and the second outer adapter extends toward and communicates with the exterior of the housing; the second connector includes a second inner connector located inside the housing and a second outer connector located outside the housing; the second inner adapter is used for being connected with the second inner connector, and the second outer adapter is used for being connected with the second outer connector.

In one possible implementation, the third adapter includes a third inner adapter portion and a third outer adapter portion that are in communication with each other; the third inner adapter extends toward and communicates with the interior of the housing, and the third outer adapter extends toward and communicates with the exterior of the housing; the third connector includes a third inner connector located inside the housing and a third outer connector located outside the housing; the third inner switching part is used for being connected with the third inner connector, and the third outer switching part is used for being connected with the third outer connector.

In one possible implementation, the first adapter, the second adapter, and the third adapter are all located inside the housing. Therefore, the appearance of the connecting box is tidier and more attractive, and the integral aesthetic property of the connecting box is improved. And the adapter is arranged on the inner side of the adapter panel, so that the occupied space of the adapter outside the connecting box can be reduced, the available space of the external environment of the connecting box is increased, and the operation space of the connector outside the connecting box is increased, thereby facilitating the plugging operation between the connecting box and the external connector.

Alternatively, the first adapter, the second adapter, and the third adapter are all located outside of the housing. Therefore, the available space inside the connecting box can be effectively increased, interference between the adapter and other structural members in the accommodating cavity can be effectively reduced or avoided, and the rationality of the internal space layout of the connecting box can be improved.

In one possible implementation, the adapter further comprises a first sleeve disposed in the first adapter; one end of the first sleeve is arranged in the first inner switching part in a penetrating way, and the other end of the first sleeve is arranged in the first outer switching part in a penetrating way. Therefore, the coaxiality of the optical fiber fit in the first inner connector and the first outer connector can be improved, dislocation of the two optical fibers is reduced or avoided, and the reliability and stability of optical signal transmission between the first outer connector and the first inner connector are improved.

In one possible implementation manner, one of the first inner adapting portion and the first outer adapting portion is internally provided with a first limiting portion, and an end face of the first sleeve abuts against the first limiting portion. The installation of the first sleeve in the first adapter can be facilitated, the inner wall of the first adapter is saved from being spread or enlarged, the operation is simple, the installation is reliable, the installation operation of the first sleeve can be effectively simplified, and the installation efficiency of the first sleeve is improved.

In one possible implementation manner, the first inner adapting portion has a first clamping portion thereon, and the first clamping portion is configured to mate with a clamping groove on the first inner connector. The first inner connector can be reduced or avoided from being offset or misplaced, and the reliability and stability of the fit between the first inner connector and the first inner switching part can be improved.

In one possible implementation, the second internal adapter has a first connection cavity and a second connection cavity thereon; the first connecting cavity and the second connecting cavity are respectively used for being matched with two connectors on the second inner connector; the second external switching part is provided with a third connecting cavity communicated with the first connecting cavity and a fourth connecting cavity communicated with the second connecting cavity; the third connecting cavity and the fourth connecting cavity are respectively used for being matched with two joints on the second outer connector. Therefore, the play or the offset of the second connector can be reduced or avoided, and the reliability and the stability of the connection between the second connector and the second adapter can be effectively improved.

In one possible implementation, the adapter further comprises a second sleeve and a third sleeve disposed within the second adapter; one end of the second sleeve is positioned in the first connecting cavity, and the other end of the second sleeve is positioned in the third connecting cavity; one end of the third sleeve is positioned in the second connecting cavity, and the other end of the third sleeve is positioned in the fourth connecting cavity. Therefore, the coaxiality of the optical fiber matching in the second inner connector and the second outer connector can be improved, dislocation of the two groups of optical fibers is reduced or avoided, and the reliability and the stability of optical signal transmission between the second outer connector and the second inner connector are improved.

In one possible implementation manner, one of the first connecting cavity and the third connecting cavity is internally provided with a second limiting part, and one end face of the second sleeve is abutted against the second limiting part; one of the second connecting cavity and the fourth connecting cavity is internally provided with a third limiting part, and one end face of the third sleeve is abutted to the third limiting part. The second sleeve and the third sleeve can be conveniently installed, the installation operation of the second sleeve and the third sleeve can be simplified, and the assembly efficiency of the second sleeve and the third sleeve is improved.

In one possible implementation manner, the third inner adapting portion has a second clamping portion thereon, and the second clamping portion is configured to mate with a clamping groove on the third inner connector. The third inner connector can be reduced or avoided from being offset or misplaced, and the reliability and stability of the fit between the third inner connector and the third inner switching part can be improved.

In one possible implementation manner, a first sliding groove is formed on the inner wall of one side of the third inner adapting part, and the first sliding groove is used for being matched with a sliding block on the outer part of one side of the third inner connector;

And a second sliding groove is formed in the inner wall of one side of the third outer switching part and is used for being matched with a sliding block on the outer part of one side of the third outer connector. Therefore, the mounting direction can be conveniently found in the assembly process, the situation of reverse mounting is reduced or avoided, and an effective error proofing effect can be achieved, so that the assembly efficiency between the third connector and the third adapter is improved.

In one possible implementation, the first adapter is an SC adapter, the second adapter is a DLC adapter, and the third adapter is an MPO adapter.

Drawings

Fig. 1 is a schematic structural view of a connection box in the related art;

fig. 2 is a schematic structural diagram of a connection box according to an embodiment of the present application;

FIG. 3 is an exploded view of a connector box according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of another connection box provided in an embodiment of the present application;

FIG. 5 is an exploded view of another connector box provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of an adaptor according to an embodiment of the present disclosure under a view angle;

FIG. 7 is a schematic view of an adapter according to an embodiment of the present disclosure in another view;

Fig. 8 is a schematic diagram of connection between a connector and an adapter in a connection box according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a connection box with an adapter located inside a housing according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a connection box of an adapter inside a housing and a connector according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a connection box with an adaptor located outside a casing according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a connection box of an adaptor located outside a housing and connected to a connector according to an embodiment of the present disclosure;

FIG. 13 is a cross-sectional view of a first adapter provided in an embodiment of the present application;

fig. 14 is a schematic structural diagram of a second adaptor according to an embodiment of the present disclosure under a view angle;

FIG. 15 is a schematic view of a second adapter according to an embodiment of the present disclosure in another view;

fig. 16 is a schematic structural view of a second sleeve and a third sleeve provided in an embodiment of the present application in a second adaptor;

FIG. 17 is a cross-sectional view of a second adapter provided in an embodiment of the present application;

fig. 18 is a schematic structural view of a third internal adapter according to an embodiment of the present disclosure;

Fig. 19 is a schematic structural view of a third external adapter according to an embodiment of the present disclosure;

fig. 20 is a schematic structural diagram of a rotary slot provided in an embodiment of the present application on an adapter;

fig. 21 is a schematic structural view of a dust cap provided in an embodiment of the present application in a connection box.

Reference numerals illustrate:

100-connecting box;

110-a housing; 111-a housing; 112-a transition panel; 113-a receiving cavity;

120-first adapter;

121-a first inner transition; 1211-a first stop; 1212-a first clamping portion;

122-a first outer transition; 1221-rotating a card slot; 12211-a first card slot; 12212-a second card slot;

123-a first sleeve;

130-a second adapter;

131-a second internal adaptor; 1311-first connection chamber; 1312-a second connecting cavity;

132-a second outer transition; 1321-third connecting lumen; 1322-fourth connecting lumen; 1323-a second stop;

1324-third limit part;

133-a second sleeve; 134-a third sleeve;

140-a third adapter;

141-a third internal adaptor; 1411-a second clip portion; 1412-first chute;

142-a third outer adapter; 1421-a second chute;

150-an identification panel; 151-avoiding holes;

160-beam splitters;

170-fiber trays;

180-a dust cap;

2-a first connector; 21-a first inner connector; 22-a first external connector;

3-a second connector; 31-a second inner connector; 32-a second external connector;

4-a third connector; 41-a third inner connector; 42-third outer connector.

Detailed Description

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

OLT and ONU refer to connection devices in an optical transmission network, and are two necessary modules in a passive optical network (Passive Optical Network, PON). The ODN is a fiber to the home (Fiber to the Home, FTTH) optical cable network based on PON equipment, and functions to provide an optical transmission channel between the OLT and the ONUs.

A large number of box-type devices such as an optical distribution box, an optical fiber splitting box and the like are adopted in the ODN engineering, and different numbers and different types of passive optical devices are integrated in the devices so as to meet the demands of optical fiber deployment and management. In these box-like devices, adapters are typically provided, with two connectors positioned in sleeves in the adapters to mate the two lengths of optical fibers.

Fig. 1 is a schematic structural view of a connection box in the related art.

Referring to fig. 1, in the related art, a connection box 1 includes: a housing 11, and an adapter 12 fitted to the housing 11. One end of the adapter 12 is located inside the housing 11 for connection with a connector inside the housing 11, and the other end is located outside the housing 11 for connection with a connector outside the housing 11. The connectors inside the housing 11 and the connectors outside the housing 11 are mated by an adapter 12.

Wherein, on the adapter 12 is provided a nut fastener 13, one end of the adapter 12 passes through the through hole on the housing 11 and is located inside the housing 11, and the nut fastener 13 is screwed on one end of the adapter 12 located inside the housing 11, so that the adapter 12 is connected with the housing 11 by the nut fastener 13. Further, a first seal ring 14 and a second seal ring 15 are provided between the adapter 12 and the housing 11, and the first seal ring 14 and the second seal ring 15 are located inside and outside the housing 11, respectively, to achieve sealing at a portion where the adapter 12 and the housing 11 are joined.

However, the adapter needs to be locked on the housing by using a nut fastener with a certain torque, and sealing rings are required to be respectively arranged inside and outside the housing to realize the sealing between the adapter and the housing, so that the assembly process requirement is relatively high, the assembly time is long, and the assembly cost of the connecting box is increased.

Moreover, the adapter and the housing are mechanically sealed by a sealing ring, and there is a quality risk in a certain scenario, for example: the nut fastener is not locked according to torque, the sealing ring is neglected to be assembled, and the like, so that the reliability of sealing between the adapter and the shell is reduced.

In addition, in the connecting box, the adapter has high requirement on dimensional accuracy, high-quality high-molecular materials are required to be adopted for injection molding, and the material cost is relatively high.

In another related art, a connection box is further provided, wherein the housing and the adapter in the connection box are integrally formed, so that the adapter and the housing are in an integrated structure, and the problems of sealing failure between the adapter and the housing, high assembly cost and the like are solved.

However, in the connection box formed by integrally forming the adapter and the housing, the adapters on the housing are all of the same type and can only be connected with one type of optical fiber connector, so that the connection requirements of connectors with different types of specifications are difficult to meet. When the connecting box needs to be matched with connectors of different models, a new forming die needs to be redesigned, and the flexibility of the connecting box is greatly reduced.

Based on the above-mentioned problem, researchers have conceived improving the structure of the connection box, by integrally forming at least one first adapter and at least one second adapter on the housing of the connection box, respectively, so that the two adapters can at least realize connection of connectors of two different models. In order to solve the high and sealing performance of connecting box equipment cost and look into scheduling problem, moreover, can also make the connecting box satisfy the connection demand of different model connectors, effectively improve the flexibility of connecting box.

The embodiment of the application provides a connection box, which can be box type equipment such as an optical distribution box, an optical fiber splitting box and the like, and can also be a product with the characteristic of directly forming a switching element on any shell. In the embodiment of the present application, an example will be described in which the connection box is an optical fiber splitting box.

Fig. 2 is a schematic structural diagram of a connection box provided in an embodiment of the present application, and fig. 3 is an exploded view of a connection box provided in an embodiment of the present application.

Referring to fig. 2, the connection box 100 may include a housing 110 and at least one first adaptor 120 and at least one second adaptor 130 disposed on the housing 110. For example, the housing 110 may include a case 111 and an adapter panel 112 connected to each other, and the first adapter 120, the second adapter 130, and the third adapter 140 may be disposed on the adapter panel 112, or may be disposed on the case 111, and in the embodiment of the present application, the first adapter 120 and the second adapter 130 will be described as being disposed on the adapter panel 112.

As shown in connection with fig. 3, the housing 111 and the adapter panel 112 may collectively enclose a receiving cavity 113, and structural members (e.g., the splitter 160, the fiber tray 170, the fiber connector, etc.) for performing the complete functions of the connection box 100 may be disposed within the receiving cavity 113. For example, the casing 111 and the adapting panel 112 may be assembled in a detachable manner, and in the process of assembling the connection box 100, the structural components inside the connection box 100 may be first installed into the accommodating cavity 113 through the opening on the casing 111, and then the adapting panel 112 is assembled on the casing 111, so as to complete the assembly of the connection box 100.

Wherein the first and

second adapters

120 and 130 may be fiber optic adapters, one ends of the first and

second adapters

120 and 130 may be in communication with the receiving cavity 113, and the other ends may be in communication with the outside of the housing 110. One end of the adapters (the first adapter 120 and the second adapter 130) communicating with the receiving chamber 113 may be connected with the optical fiber connector located inside the housing 111, and one end communicating with the outside of the housing 111 may be connected with the optical fiber connector located outside the housing 111. So that two optical fiber connectors located inside the housing 111 and outside the housing 111 can be conducted through the adapter to realize transmission of optical signals.

For example, the first adapter 120 may be used to connect with the first connector 2 (see fig. 8), the second adapter 130 may be used to connect with the second connector 3 (see fig. 8), and the first connector 2 and the second connector 3 may be different types of optical fiber connectors.

For example, one of the first Connector 2 and the second Connector 3 may be an SC Connector (Square Connector), and the other may be a DLC Connector (Double Lucent Connector). Accordingly, one of the first and

second adapters

120, 130 may be an SC adapter and the other may be a DLC adapter.

Alternatively, in some examples, one of the first Connector 2 and the second Connector 3 may be an SC Connector (Square Connector), and the other may be an MPO Connector (Multi-fiber Pull Off). Accordingly, one of the first and

second adapters

120, 130 may be an SC adapter and the other may be an MPO adapter.

Alternatively, in other examples, one of the first connector 2 and the second connector 3 may also be a DLC connector, and the other may be an MPO connector. Accordingly, one of the first adapter 120 and the second adapter 130 may be a DLC adapter and the other may be an MPO adapter.

One end of the first switching member 120 communicating with the inside of the housing 111 may be connected to the first connector 2 (refer to the first inner connector 21 in fig. 8) located inside the housing 111, and one end communicating with the outside of the housing 111 may be connected to the first connector 2 (refer to the first outer connector 22 in fig. 8) located outside the housing 111, so that both the first connectors 2 located inside the housing 111 and outside the housing 111 may be conducted through the first switching member 120, thereby realizing transmission of an optical signal.

Accordingly, the second adaptor 130 can make the two second connectors 3 located inside the housing 111 and outside the housing 111 conductive, so as to realize transmission of optical signals.

The first adaptor 120 and the second adaptor 130 may be integrally formed with the housing 110, for example, when the first adaptor 120 and the second adaptor 130 are disposed on the adaptor panel 112, the adaptor may be integrally injection molded or integrally stamped with the adaptor panel 112, so that the adaptor (the first adaptor 120 and the second adaptor 130) and the adaptor panel 112 are integrally formed. This eliminates the need for structural members between the adapter and the adapter panel 112 for connection and sealing,

for example, the adapter and adapter panel 112 may be formed from relatively low cost plastic materials, such as poly (P-Phenylene terephthalamide; abbreviated as PPT), to reduce the cost of manufacturing the adapter and adapter panel.

In a specific production process, the first adaptor 120 and the second adaptor 130 with different distribution modes can be formed on the adaptor panel 112 according to different use requirements or application scenarios of the connection box 100. For example, the number of the first adaptor 120 and the second adaptor 130 on the adaptor panel 112 may be the same, so that the connection box 100 may simultaneously meet the connection requirements of two different types of connectors. Alternatively, when more connectors of one type are used in the application scenario of the connection box 100, more adapters matched with the connectors may be disposed on the adapter panel 112, for example, the number of the first adapters 120 on the adapter panel 112 may be greater than the number of the second adapters 130, or the number of the second adapters 130 may be greater than the number of the first adapters 120, so that the adapters may meet the connection requirement. Specifically, the number of the adapters on the adapter panel 112 may be selected and set according to a specific application scenario.

With the mode through nut fastener and sealing washer among the related art realizes being connected between adapter and the casing, this application embodiment through making first adaptor 120 and second adaptor 130 and shell 110 be integrated structure, can save to set up the structure (for example, nut fastener etc.) that is used for connecting between adaptor and switching panel 112, need not to carry out the equipment process between adaptor and the switching panel 112, can effectively simplify the equipment operation of connecting box 100, shorten the assembly duration of connecting box 100 to effectively reduce the equipment cost of connecting box 100.

Moreover, compared with the sealing between the adapter and the shell through the sealing ring, the integrated structure can effectively improve the reliability and stability of the sealing between the adapter and the adapter panel 112, and can effectively reduce or avoid the problems of sealing failure and the like between the adapter and the adapter panel 112.

In addition, compared with the method of independently manufacturing the adapter by adopting high-quality polymer materials, in the embodiment of the application, the adapter (the first adapter 120 and the second adapter 130) and the adapter panel 112 are of an integrated structure, and can adopt plastic raw materials with relatively low cost, so that the material cost of the adapter and the adapter panel 112 can be effectively reduced, and the overall material cost of the connecting box 100 is effectively reduced.

Compared with the integrated structure of the shell and the adapter in another related technology, the first adapter 120 and the second adapter 130 are arranged on the adapter panel 112, so that the two adapters can be connected with two different types of optical fiber connectors, the connection box 100 can meet the connection requirements of the connectors of different types, and the flexibility of the connection box 100 is effectively improved.

With continued reference to fig. 2 and 3, the connection box 100 may further include a third adapter 140 integrally formed with the housing 10, the third adapter 140 may be used to connect with the third connector 4 (shown with reference to fig. 8), and the third connector 4 is a different type of optical connector from both the first connector 2 and the second connector 3.

For example, one of the first connector 2, the second connector 3, and the third connector 4 may be an SC connector, the other may be a DLC connector, and the other may be a connector MPO connector. Accordingly, one of the first adapter 120, the second adapter 130, and the third adapter 140 may be an SC adapter, another may be a DLC adapter, and yet another may be a connector MPO adapter. For example, the first connector 2 may be an SC connector, the second connector 3 may be a DLC connector, and the third connector 4 may be an MPO connector. Accordingly, the first adapter 120 may be an SC adapter, the second adapter 130 may be a DLC adapter, and the third adapter 140 may be an MPO adapter.

Therefore, the connection box 100 can be connected with three different optical fiber connectors at the same time, so that the connection box 100 can meet the connection requirements of more types of connectors, the flexibility of the cooperation between the connection box 100 and the optical fiber connectors can be effectively improved, and the universality of the connection box is improved.

The specific structure of the connection box 100 provided in the embodiment of the present application will be described in detail below by taking the first adapter 120 as an SC adapter, the second adapter 130 as a DLC adapter, and the third adapter 140 as an MPO adapter as an example.

In the process of using the connection box 100, the specification of the connection box 100 is different according to different application scenarios. For example, depending on the customer's custom requirements, different appearance colors may be required, or different logos or trademarks may be designed on the housing 110. However, in the above-mentioned related art connection box 100, the structure of the housing 111 is usually a fixed structure, and the corresponding mold needs to be redesigned in response to the custom requirement of the customer, and the connection box 100 needs to be produced again, which has a longer production period and a higher cost, and greatly reduces the custom flexibility of the connection box 100.

Fig. 4 is a cross-sectional view of another connection box provided in an embodiment of the present application, and fig. 5 is an exploded view of another connection box provided in an embodiment of the present application.

In the embodiment of the present application, referring to fig. 4 and 5, the connection box 100 may further include an identification panel 150, where the identification panel 150 may be located on the outer side of the housing 110, for example, in the embodiment of the present application, the identification panel 150 may be disposed on the transit panel 112 and on a side of the transit panel 112 facing away from the receiving cavity 113, so that the identification panel 150 becomes an external appearance surface of the connection box 100.

The identification panel 150 and the housing 110 may be detachably connected, and a relief hole 151 may be formed in the identification panel 150 at a position opposite to the first adaptor 120, the second adaptor 130 and the third adaptor 140. One ends of the first, second and

third adapters

120, 130 and 140 toward the outside of the case 110 may communicate with the outside of the case 110 through the escape hole 151, and a connector located at the outside of the case 111 may be connected with the adapters through the escape hole 151.

For example, one end of the adapter may be positioned inside the adapter panel 112 and the other end may be positioned outside the adapter panel 112 and pass through the escape hole 151 and protrude to the outside of the identification panel 150 so that the end of the adapter protruding out of the identification panel 150 may be connected with a connector positioned outside the housing 111. Alternatively, in some examples, the adaptor may be located entirely inside the adaptor panel 112, and the other end of the adaptor may communicate with the outside of the adaptor panel 112 through the escape hole 151, and the connector located outside the housing 111 may pass through the escape hole 151 and be inserted into the adaptor to achieve connection with the adaptor.

A logo or trademark, etc. may be provided on the logo panel 150, and for example, a designated logo, a logo symbol, a product specification or trademark, etc. may be provided on the logo panel 150 according to the use requirements of the user. Alternatively, the identification panel 150 may be provided in a different color according to the user's customized needs. In this way, the identification panel 150 is manufactured separately as required and assembled to the housing 110 of the junction box 100 during the customization process. The outer shell 110 and the adapter of the whole connection box 100 do not need to be manufactured again, so that the customization cost of the connection box 100 can be effectively reduced, the customization flexibility of the connection box 100 is improved, and the special customization requirements of users are met.

The identification panel 150 may be connected to the housing 111, or the identification panel 150 may be connected to the adapter panel 112. For example, in the assembly process, the adapter panel 112 provided with the first adapter 120, the second adapter 130, and the third adapter 140 may be assembled on the housing 111, and then the identification panel 150 may be connected to the housing 111 or the adapter panel 112 to complete the assembly of the connection box 100.

For example, the identification panel 150 may be connected to the housing 111 or the adapter panel 112 by a clamping, fastening, bonding, or other manners, or in some examples, the identification panel 150 may be connected to the housing 111 or the adapter panel 112 by other detachable manners, which is not limited in the embodiments of the present application.

Fig. 6 is a schematic structural diagram of an adaptor according to an embodiment of the present application under one view angle, fig. 7 is a schematic structural diagram of an adaptor according to an embodiment of the present application under another view angle, and fig. 8 is a schematic connecting diagram between a connector and an adaptor in a connector box according to an embodiment of the present application.

Referring to fig. 6 and 7, in an embodiment of the present application, the first adapter 120 may include a first inner adapter 121 and a first outer adapter 122, which are in communication with each other, wherein the first inner adapter 121 may extend toward the inside of the case 110 and communicate with the inside of the case 110. The first outer adapter 122 may extend toward the outside of the housing 110 and communicate with the outside of the housing 110. As shown in connection with fig. 8, the first connector 2 may include a first inner connector 21 located within the housing 110 and a first outer connector 22 located outside the housing 110.

Wherein the first inner adapter 121 may be used to connect with the first inner connector 21 and the first outer adapter 122 may be used to connect with the first outer connector 22. For example, optical fibers may be disposed inside the first inner connector 21 and the first outer connector 22, the optical fibers on the first inner connector 21 may be inserted into the first inner switching part 121, and the optical fibers on the first outer connector 22 may be inserted into the first outer switching part 122, so that the two optical fibers may be abutted in the first switching part 120, thereby realizing transmission of optical signals.

Accordingly, the second adapter 130 may include a second inner adapter 131 and a second outer adapter 132, which are in communication with each other, and the second inner adapter 131 may extend toward the inside of the case 110 and be in communication with the inside of the case 110. The second external adapter 132 may extend toward the outside of the housing 110 and communicate with the outside of the housing 110. The second connector 3 may include a second inner connector 31 located within the housing 110 and a second outer connector 32 located outside the housing 110. The conduction principle between the second inner connector 31 and the second outer connector 32 is the same as the conduction principle between the first inner connector 21 and the first outer connector 22, and will not be described here again.

The third adapter 140 may include a third inner adapter 141 and a third outer adapter 142, the interiorly communicating, and the third inner adapter 141 may extend toward the interior of the housing 110 and communicate with the interior of the housing 110. The third external adapter 142 may extend toward the outside of the housing 110 and communicate with the outside of the housing 110. The third connector 4 may include a third inner connector 41 located within the housing 110 and a third outer connector 42 located outside the housing 110. The conduction principle between the third inner connector 41 and the third outer connector 42 is the same as that between the first inner connector 21 and the first outer connector 22, and will not be described here again.

For example, referring to fig. 8, the connection box 100 may further include an optical splitter 160 disposed in the housing 111, the optical splitter 160 may include a plurality of input ends and a plurality of output ends, one ends of the first, second and third

internal connectors

21, 31 and 41 disposed in the housing 111 may be connected to the input ends or the output ends of the optical splitter 160, respectively, and the other ends may be connected to the first, second and third internal switching

parts

121, 131 and 141, respectively. So that the first, second and third

inner connectors

21, 31 and 41 located inside the housing 111 can be connected with the first, second and third

outer connectors

22, 32 and 42 located outside the housing 111 through the first, second and

third adapters

120, 130 and 140, respectively, to achieve transmission of optical signals.

An optical fiber tray 170 may be further disposed in the housing 111 of the connection box 100, the optical fiber tray 170 may be connected with the adapter panel 112, and optical fibers between the adapter and the optical splitter 160 may be disposed on the optical fiber tray 170, so that the optical fiber tray 170 may perform a fixing function on the optical fibers, so as to improve the rationality and standardization of the arrangement of the optical fibers in the housing 111. In addition, the optical fiber tray 170 can protect the optical fiber connector, so that the connector in the housing 111 can be reduced or prevented from being pulled when being connected with the adapter, and the optical fiber connector is damaged, thereby being beneficial to improving the stability of optical signal transmission between the connector and the adapter.

Fig. 9 is a schematic structural diagram of a connection box with an adapter located inside a housing according to an embodiment of the present application, and fig. 10 is a schematic structural diagram of a connection box with an adapter located inside a housing according to an embodiment of the present application connected with a connector.

In one possible implementation, referring to fig. 9, the first adapter 120, the second adapter 130, and the third adapter 140 may all be located inside the housing 110 (illustrated in fig. 9 as the first adapter 120). For example, the first inner adapter 121, the first outer adapter 122, the second inner adapter 131, the second outer adapter 132, the third inner adapter 141, and the third outer adapter 142 may all be located at a side of the adapter panel 112 facing the receiving cavity 113. And, the first, second and third external switching

parts

122, 132 and 142 may communicate with the outside of the case 110 through the escape hole 151 on the identification panel 150. For example, taking the connection between the first adaptor 120 and the first connector 2 as shown in fig. 10 as an example, in the process of use, the first outer connector 22 may pass through the avoidance hole 151 on the identification panel 150 and be inserted into the first outer adaptor 122 to connect with the first outer adaptor 122.

This can make the appearance of the junction box 100 more neat and beautiful, and is advantageous for improving the overall aesthetic property of the junction box 100. Furthermore, the adaptor is disposed on the inner side of the adaptor panel 112, so that the occupied space of the adaptor outside the connection box 100 can be reduced, the available space of the external environment of the connection box 100 can be increased, and the operation space of the connectors (such as the first external connector 22, the second external connector 32 and the third external connector 42) outside the connection box 100 can be increased, thereby facilitating the plugging operation between the connection box 100 and the external connectors.

Fig. 11 is a schematic structural diagram of a connection box with an adapter located outside a housing according to an embodiment of the present application, and fig. 12 is a schematic structural diagram of a connection box with an adapter located outside a housing according to an embodiment of the present application connected with a connector.

Alternatively, in another possible implementation, referring to fig. 11 and 12, the first adaptor 120, the second adaptor 130, and the third adaptor 140 may also all be located outside the housing 110 (illustrated in fig. 11 and 12 as the first adaptor 120). For example, the first inner adapter 121, the first outer adapter 122, the second inner adapter 131, the second outer adapter 132, the third inner adapter 141, and the third outer adapter 142 may all be located on a side of the adapter panel 112 facing away from the receiving cavity 113. Thus, the available space inside the connection box 100 can be effectively increased, interference between the adaptor and other structural members in the accommodating cavity 113 can be effectively reduced or avoided, and the rationality of the space layout inside the connection box 100 can be improved.

Fig. 13 is a cross-sectional view of a first adapter according to an embodiment of the present application.

Referring to fig. 13, the connection box 100 may further include a first sleeve 123 disposed in the first adapter 120, one end of the first sleeve 123 may be penetrated in the first inner adapter 121, and the other end may be penetrated in the first outer adapter 122. During the connection of the first adapter 120 with the first connector 2, the optical fibers in the first inner connector 21 and the first outer connector 22 may be inserted into the first sleeve 123 to achieve the butt joint of the two optical fibers through the first sleeve 123. This can improve the coaxiality of the optical fiber mating in the first inner connector 21 and the first outer connector 22, reduce or avoid the dislocation of the two optical fibers, and facilitate improving the reliability and stability of the optical signal transmission between the first outer connector 22 and the first inner connector 21.

For example, the first sleeve 123 may be a ceramic sleeve, and the ceramic material has higher rigidity and strength, so that structural stability of the first sleeve 123 may be improved, deformation of the first sleeve 123 may be reduced or avoided, and deformation of the first sleeve 123 may be prevented to affect reliability and stability of the mating between the two optical fibers, thereby effectively improving reliability of optical signal transmission between the first connector 2 and the second connector 3.

In the related art, a limiting portion is generally provided on inner walls of both ends of the adapter, and the ceramic sleeve is disposed between the two limiting portions, so that the two limiting portions limit the ceramic sleeve. However, during the process of installing the ceramic sleeve into the adapter, the inner wall of the adapter needs to be spread by means of a tool to enlarge the inner hole of the adapter, so that interference of the limiting part on the ceramic sleeve is reduced, and the ceramic sleeve can penetrate into the adapter. The installation method is complex, consumes long time and reduces the installation efficiency of the ceramic sleeve.

In the embodiment of the present application, with continued reference to fig. 13, one of the first inner adapter portion 121 and the first outer adapter portion 122 may be provided with a first limiting portion 1211 inside, and one end of the first sleeve 123 may abut on the first limiting portion 1211. For example, the first limiting portion 1211 may be disposed inside the first inner adapting portion 121, and during the installation of the first sleeve 123, the first sleeve 123 may sequentially penetrate into the first outer adapting portion 122 and the first inner adapting portion 121 from an end of the first outer adapting portion 122 opposite to the first inner adapting portion 121, so as to complete the assembly of the first sleeve 123. At this time, an end surface of the first sleeve 123 facing the first inner adapting portion 121 may abut against the first limiting portion 1211. The first limiting portion 1211 can limit the first sleeve 123 in the axial direction (i.e. the x direction in fig. 13) of the first adapter 120, so as to prevent the first sleeve 123 from penetrating out of the first inner adapter 121 and extending into the accommodating cavity 113, thereby affecting the normal installation of the first sleeve 123, and helping to improve the accuracy and reliability of the installation of the first sleeve 123.

For example, the first sleeve 123 may be in transition fit with the first outer adapter 122 and the first inner adapter 121, so as to increase the firmness and reliability of the connection between the first sleeve 123 and the first adapter 120, and reduce or avoid the first sleeve 123 from falling off.

Compare and all set up spacing portion on the both ends inner wall of adapter to compare the mode of spacing to the sleeve, this application embodiment can be convenient for the installation of first sleeve 123 in first adaptor 120, has saved to prop open or enlarge the inner wall of first adaptor 120, easy operation, installation are reliable, can effectively simplify the installation operation of first sleeve 123, improve the installation effectiveness of first sleeve 123.

Alternatively, in some examples, the first limiting portion 1211 may also be disposed on the first outer adapting portion 122 to limit the first sleeve 123, which may achieve the same effect as disposed on the first inner adapting portion 121, which is not described herein.

With continued reference to fig. 13, a first clamping portion 1212 may further be disposed on the first inner adapting portion 121, where the first clamping portion 1212 may be configured to mate with a clamping groove on the first inner connector 21, for example, during the connection between the first inner connector 21 and the first inner adapting portion 121, the first clamping portion 1212 on the first inner adapting portion 121 may be clamped in the clamping groove on the first inner connector 21, so that the first inner connector 21 and the first inner adapting portion 121 may be connected by the cooperation of the first clamping portion 1212 and the clamping groove. This reduces or avoids misalignment or misalignment of the first inner connector 21, which helps to improve the reliability and stability of the fit between the first inner connector 21 and the first inner adapter 121.

Fig. 14 is a schematic structural view of a second adaptor according to an embodiment of the present application under one view angle, and fig. 15 is a schematic structural view of a second adaptor according to an embodiment of the present application under another view angle.

Referring to fig. 14, a first connection cavity 1311 and a second connection cavity 1312 may be provided on the second inner adapter 131, and the first connection cavity 1311 and the second connection cavity 1312 may be used to mate with two joints on the second inner connector 31, respectively. As shown in fig. 15, a third connection chamber 1321 communicating with the first connection chamber 1311 and a fourth connection chamber 1322 communicating with the second connection chamber 1312 may be provided on the second outer adapter 132. For example, during the process of connecting the second adapter 130 with the second connector 3, two joints on the second inner connector 31 may be inserted into the first connecting cavity 1311 and the second connecting cavity 1312, respectively, so that the second inner connector 31 may be connected with the second inner adapter 131 by the cooperation between the two joints and the two connecting cavities. In this way, the play or the offset of the second inner connector 31 can be reduced or avoided, and the reliability and the stability of the connection between the second inner connector 31 and the second inner joint 131 can be effectively improved.

Correspondingly, the two connectors on the second outer connector 32 can be inserted into the third connecting cavity 1321 and the fourth connecting cavity 1322 respectively, and the two connectors on the second outer connector 32 and the two connectors on the second inner connector 31 are connected in pairs in the connecting cavities, so as to realize the transmission of optical signals. For example, optical fibers may be disposed on both the two joints of the second inner connector 31 and both the two joints of the second outer connector 32, and the two sets of optical fibers may be butted in the connection cavity to achieve transmission of optical signals.

Fig. 16 is a schematic structural view of a second sleeve and a third sleeve provided in an embodiment of the present application, and fig. 17 is a cross-sectional view of a second adapter provided in an embodiment of the present application.

Referring to fig. 16, the junction box 100 may further include a second sleeve 133 and a third sleeve 134 disposed in the second adapter 130, wherein one end of the second sleeve 133 may be positioned in the first junction cavity 1311 and the other end may be positioned in the third junction cavity 1321. One end of the third sleeve 134 may be positioned in the second connection chamber 1312 and the other end may be positioned in the fourth connection chamber 1322. During the connection of the second connector 3 to the second adapter 130, one optical fiber on the second inner connector 31 may be inserted into one end of the second sleeve 133 at the first connection cavity 1311, and another optical fiber may be inserted into the third sleeve 134 at one end of the second connection cavity 1312. While one fiber on the second outer connector 32 may be inserted into the second sleeve 133 at one end of the third connection cavity 1321 and another fiber may be inserted into the third sleeve 134 at one end of the fourth connection cavity 1322. So that the two groups of optical fibers can be butted through the two sleeves. This can improve the coaxiality of the optical fiber mating in the second inner connector 31 and the second outer connector 32, reduce or avoid misalignment of the two sets of optical fibers, and facilitate improvement of the reliability and stability of optical signal transmission between the second outer connector 32 and the second inner connector 31.

The second sleeve 133 and the third sleeve 134 may be ceramic sleeves, so as to improve rigidity and strength of the second sleeve 133 and the third sleeve 134.

As shown in fig. 17, a second limiting portion 1323 may be provided inside one of the first and

third connection chambers

1311 and 1321, and one of end surfaces of the second sleeve 133 may abut against the second limiting portion 1323. Correspondingly, a third limiting portion 1324 may be disposed in one of the second connecting cavity 1312 and the fourth connecting cavity 1322, and one end surface of the third sleeve 134 may abut against the third limiting portion 1324. This can facilitate the installation of the second sleeve 133 and the third sleeve 134, simplify the installation operation of the second sleeve 133 and the third sleeve 134, and improve the assembly efficiency of the second sleeve 133 and the third sleeve 134.

Fig. 18 is a schematic structural view of a third inner adapter according to an embodiment of the present application, and fig. 19 is a schematic structural view of a third outer adapter according to an embodiment of the present application.

Referring to fig. 18, a second clamping portion 1411 may be provided on the third inner adapter portion 141, and the second clamping portion 1411 may be used to mate with a clamping groove on the third inner connector 41. For example, in the process of connecting the third inner connector 41 and the third inner adapting portion 141, the second clamping portion 1411 on the third inner adapting portion 141 may be clamped in the clamping groove on the third inner connector 41, so that the third inner connector 41 and the third inner adapting portion 141 may be connected by matching the second clamping portion 1411 with the clamping groove. This reduces or avoids misalignment or misalignment of the third inner connector 41, which contributes to an improvement in the reliability and stability of the fit between the third inner connector 41 and the third inner adapter 141.

For example, the second clamping portion 1411 may be disposed inside the third inner adapting portion 141, and a gap may be formed between the second clamping portion 1411 and an inner wall of the third inner adapting portion 141, so that the second clamping portion 1411 is an elastic member, and thus, during the process of pulling out the third inner adapting portion 141 from the third inner connector 41, the second clamping portion 1411 may be deformed toward the gap direction and be pulled out of a clamping groove on the third inner adapting portion 141, so as to facilitate pulling out the third inner connector 41 from the third inner adapting portion 141.

With continued reference to fig. 18, a first sliding groove 1412 may be formed on an inner wall of one side of the third inner adapter 141, and the first sliding groove 1412 may be used to mate with a sliding block on an outer side of one side of the third inner connector 41. For example, when the third inner connector 41 is connected to the third inner adapter 141, the side of the third inner connector 41 having the slider may be aligned with the side of the third inner adapter 141 having the first sliding slot 1412, so that the slider may be located in the first sliding slot 1412 during the connection of the third inner connector 41 to the third inner adapter 141. Therefore, the mounting direction can be conveniently found in the process of assembling by workers, the situation of reverse mounting is reduced or avoided, and an effective error preventing effect can be achieved, so that the assembling efficiency between the third inner connector 41 and the third inner switching part 141 is improved.

Accordingly, referring to fig. 19, a second sliding groove 1421 may be formed on an inner wall of one side of the third external adaptor 142, and the second sliding groove 1421 on the third external adaptor 142 may be used to cooperate with a sliding block on the third external connector 42 to provide an orientation reference for the connection between the third external connector 42 and the third external adaptor 142, so as to improve the accuracy of the connection between the third external connector 42 and the third external adaptor 142.

Fig. 20 is a schematic structural diagram of a rotary slot provided in an embodiment of the present application on an adapter.

Referring to fig. 20, a rotation slot 1221 (illustrated in fig. 20 as a first outer adapter) may be further formed in the first outer adapter 122, the second outer adapter 132, and the third outer adapter 142, and the rotation slot 1221 may be used to mate with the limit protrusions on the first outer connector 22, the second outer connector 32, and the third outer connector 42, respectively. The rotational detent 1221 may provide an axial (i.e., x-direction in fig. 20) stop for the stop tab, and may reduce or prevent axial play or deflection of the first outer connector 22, the second outer connector 32, and the third outer connector 42. The reliability and stability of the connection between the connector and the adapter are improved.

With continued reference to fig. 20, for example, taking the rotary slot 1221 on the first outer adapter 122 as an example, the rotary slot 1221 may include a first slot 12211 and a second slot 12212 that are in communication. The first card slot 12211 may extend from an outer end surface of the first outer adapter 122 to the second card slot 12212, and the second card slot 12212 may extend along an outer circumference of the first outer adapter 122. During the process of the first outer connector 22 being mated with the first outer adapter portion 122, the limiting protrusion on the first outer connector 22 may be snapped into the first card slot 12211 from the outer end surface of the first outer adapter portion 122. Then, the first card slot 12211 is inserted into the second card slot 12212, and finally, the second card slot 12212 is rotated around the circumference of the first outer adapter 122 along the extending direction of the second card slot 12212 to the end of the second card slot 12212. The second clamping groove 12212 may perform a limiting function on the limiting protrusion, and may prevent the limiting protrusion from moving along the axial direction (i.e., the x direction in the drawing) of the first outer adapting portion 122. To avoid axial displacement of the first outer connector 22 along the first outer adapter 122, thereby effectively improving the firmness and reliability of the mating between the first outer connector 22 and the first outer adapter 122.

Referring to fig. 21, in an embodiment of the present application, the connection box 100 may further include a dust cap 180, and the dust cap 180 may be used to cap on the adapter (the first adapter 120, the second adapter 130, or the third adapter 140) when the adapter is not connected to the connector (the first external connector 22, the second external connector 32, or the third external connector 42). For example, taking the connection of the dust cap 180 and the first adaptor 120 as an example, the dust cap 180 may be disposed on the first outer adaptor 122 and detachably connected to the first outer adaptor 122 by a fastening, a threaded connection, or the like.

When the first outer connector 22 is connected to the first outer adapter 122, the dust cap 180 may be removed from the first outer adapter 122, and then the first outer connector 22 may be mounted on the first outer adapter 122. When the first outer connector 22 is removed from the first outer adapter 122, the dust cap 180 may be further placed over the first outer adapter 122. In this way, the dust cover 180 can play a certain role in protecting the first outer adapting portion 122, so that external dust and dirt can be reduced or prevented from entering the first outer adapting portion 122, and the service life of the first outer adapting portion 122 can be prolonged.

For example, a hanging ring (not shown) may be provided on the dust cap 180, and an annular groove may be formed on the outer circumference of the end of the first outer adapter 122 near the adapter panel 112. The hanging ring on the dust cover 180 can be sleeved in the annular groove, so that the dust cover 180 can be hung on the first outer adapting part 122 through the hanging ring, and the dust cover 180 can be prevented from being lost.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances. The terms "first," "second," "third," "fourth," and the like, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although embodiments of the present application have been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A connection box, characterized by comprising a housing (110) and at least one first adapter (120) and at least one second adapter (130) arranged on said housing (110);

the first adapter piece (120) is used for being connected with the first connector (2), the second adapter piece (130) is used for being connected with the second connector (3), and the first connector (2) and the second connector (3) are optical fiber connectors of different types;

the first adapter (120) and the second adapter (130) are of integral construction with the housing (110).

2. The connection box according to claim 1, further comprising a third adapter (140) integrally formed with the housing (110), the third adapter (140) being for connection with a third connector (4), and the third connector (4) being a different type of optical fiber connector than the first connector (2) and the third connector (4).

3. The connection box according to claim 2, further comprising an identification panel (150), said identification panel (150) being located outside said housing (110) and being removably connected to said housing (110);

the positions of the identification panel (150) opposite to the first adapter (120), the second adapter (130) and the third adapter (140) are provided with avoidance holes (151);

One end of the first adapter (120), the second adapter (130) and the third adapter (140) are communicated with the inside of the shell (110);

the other ends of the first adapter (120), the second adapter (130) and the third adapter (140) are communicated with the outside of the shell (110) through the avoidance holes (151).

4. A connection box according to any one of claims 1 to 3, characterized in that the first adapter (120) comprises a first inner adapter (121) and a first outer adapter (122) in communication with each other inside;

the first inner adapter (121) extends towards the interior of the housing (110) and communicates with the interior of the housing (110), and the first outer adapter (122) extends towards the exterior of the housing (110) and communicates with the exterior of the housing (110);

the first connector (2) comprises a first inner connector (21) located inside the housing (110) and a first outer connector (22) located outside the housing (110);

the first inner adapter (121) is configured to connect with the first inner connector (21), and the first outer adapter (122) is configured to connect with the first outer connector (22).

5. The connection box according to any one of claims 1 to 4, characterized in that the second adapter (130) comprises a second inner adapter (131) and a second outer adapter (132) in communication inside;

The second inner adapter (131) extends towards the interior of the housing (110) and communicates with the interior of the housing (110), and the second outer adapter (132) extends towards the exterior of the housing (110) and communicates with the exterior of the housing (110);

the second connector (3) comprises a second inner connector (31) located inside the housing (110) and a second outer connector (32) located outside the housing (110);

the second inner adapter (131) is for connection with the second inner connector (31), and the second outer adapter (132) is for connection with the second outer connector (32).

6. A connection box according to claim 2 or 3, characterized in that the third adapter (140) comprises a third inner adapter (141) and a third outer adapter (142) in communication with each other inside;

the third inner adapter (141) extends toward the inside of the housing (110) and communicates with the inside of the housing (110), and the third outer adapter (142) extends toward the outside of the housing (110) and communicates with the outside of the housing (110);

the third connector (4) comprises a third inner connector (41) located inside the housing (110) and a third outer connector (42) located outside the housing (110);

The third inner adapter (141) is configured to connect with the third inner connector (41), and the third outer adapter (142) is configured to connect with the third outer connector (42).

7. The connection box according to any one of claims 2, 3 and 6, characterized in that the first adapter (120), the second adapter (130) and the third adapter (140) are all located inside the housing (110);

alternatively, the first adapter (120), the second adapter (130), and the third adapter (140) are all located outside of the housing (110).

8. The connection box according to claim 4, further comprising a first sleeve (123) provided in the first adapter (120);

one end of the first sleeve (123) is arranged in the first inner switching part (121) in a penetrating way, and the other end of the first sleeve (123) is arranged in the first outer switching part (122) in a penetrating way.

9. The connection box according to claim 8, wherein one of the first inner adapter portion (121) and the first outer adapter portion (122) is internally provided with a first stopper portion (1211), and one end face of the first sleeve (123) abuts on the first stopper portion (1211).

10. The connection box according to any of claims 4, 8 and 9, characterized in that the first inner adapter portion (121) has a first clamping portion (1212), the first clamping portion (1212) being adapted to cooperate with a clamping groove on the first inner connector (21).

11. The connection box according to claim 5, characterized in that the second inner adapter (131) has a first connection cavity (1311) and a second connection cavity (1312);

the first connecting cavity (1311) and the second connecting cavity (1312) are respectively used for being matched with two joints on the second inner connector (31);

the second external adapter part (132) is provided with a third connecting cavity (1321) communicated with the first connecting cavity (1311) and a fourth connecting cavity (1322) communicated with the second connecting cavity (1312);

the third connection cavity (1321) and the fourth connection cavity (1322) are for mating with two joints on the second outer connector (32), respectively.

12. The connection box according to claim 11, further comprising a second sleeve (133) and a third sleeve (134) disposed within the second adapter (130);

one end of the second sleeve (133) is positioned in the first connecting cavity (1311), and the other end of the second sleeve (133) is positioned in the third connecting cavity (1321);

One end of the third sleeve (134) is positioned in the second connecting cavity (1312), and the other end of the third sleeve (134) is positioned in the fourth connecting cavity (1322).

13. The connection box according to claim 12, characterized in that one of the first connection cavity (1311) and the third connection cavity (1321) has a second limit portion (1323) inside, one of the end faces of the second sleeve (133) abutting on the second limit portion (1323);

one of the second connecting cavity (1312) and the fourth connecting cavity (1322) is internally provided with a third limiting part (1324), and one end face of the third sleeve (134) is abutted against the third limiting part (1324).

14. The connection box according to claim 6, wherein the third inner adapter portion (141) has a second clamping portion (1411), and the second clamping portion (1411) is configured to mate with a clamping groove on the third inner connector (41).

15. The connection box according to claim 6 or 14, characterized in that a first runner (1412) is provided on an inner wall of one side of the third inner adapter part (141), the first runner (1412) being adapted to cooperate with a slider on an outer side of one side of the third inner connector (41);

A second sliding groove (1421) is formed in the inner wall of one side of the third outer adapter part (142), and the second sliding groove (1421) is used for being matched with a sliding block on the outer part of one side of the third outer connector (42).

16. A connection box according to claim 2 or 3, characterized in that the first adapter (120) is an SC adapter, the second adapter (130) is a DLC adapter and the third adapter (140) is an MPO adapter.