Photoelectric adapter and communication system

Abstract

The present application provides an optoelectronic adapter and a communication system, wherein the optoelectronic adapter includes: a stacked optical connector and an electrical connector; the optical connector has a first connection end for cooperating with a counterpart adapter; the electrical connector has a second connection end for cooperating with a counterpart adapter; the opening directions of the first connection end and the second connection end are the same, so that when connected to the counterpart adapter, the first connection end and the second connection end can be connected to the counterpart adapter respectively. In addition, the first connection end can slide relative to the second connection end along the insertion direction of the counterpart adapter; the first connection end is configured to be connected to the counterpart adapter before the second connection end. In the above technical solution, by connecting the optical connector to the counterpart adapter before the electrical connector, it is ensured that the channel for transmitting the optical signal is connected first and then the channel for transmitting the electrical signal is connected, thereby avoiding the situation of fiber burning and improving the safety and reliability of the optoelectronic adapter during use.

Description

[0001] This application is a divisional application. The application number of the original application is 202110220169.8, and the original application date is February 26, 2021. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of optoelectronic technology, and in particular to an optoelectronic adapter and a communication system. Background Art

[0003] In recent years, data centers, 5G mid-haul and access networks and other applications have increasingly demanded low-cost, high-capacity optical interconnects. Among them, multi-channel transmitters and receivers based on silicon photonics (SiPh) have been widely regarded as one of the main solutions for optical interconnects. Through the continuous efforts of the industry, silicon photonics (SiPh) technology has also made gratifying progress. The biggest challenge facing SiPh transceivers at present is the lack of monolithically integrated light sources. Through continuous exploration by the industry, several solutions for integrating lasers into SiPh transceivers have emerged, such as flip-chip bonding, die or wafer bonding, and growing III-V on silicon substrates.

[0004] With the development of high-power, multi-channel, pluggable external light source modules, when the external light source modules are connected to the circuit boards in the data center, optical connectors are needed to realize optical signal transmission, and electrical connectors are needed to realize electrical signal transmission. However, in the process of connecting the external light source modules to the circuit boards, it is very easy for the optical fiber in the optical connector to burn, causing damage to the optical connector. Summary of the invention

[0005] The present application provides a photoelectric adapter and a communication system, which are used to improve the safety when the photoelectric adapter is plugged in and out of a peer adapter.

[0006] In the first aspect, a photoelectric adapter is provided, which is used for plugging and unplugging with a counterpart adapter. When the photoelectric adapter is plugged and unplugged with the counterpart adapter, the counterpart adapter is inserted into the photoelectric adapter along a first direction. The photoelectric adapter includes: a stacked optical connector and an electrical connector; wherein the optical connector has a first connection end for cooperating with the counterpart adapter; and the electrical connector has a second connection end for cooperating with the counterpart adapter. The opening directions of the first connection end and the second connection end are the same, so that when connected with the counterpart adapter, the first connection end and the second connection end can be connected with the counterpart adapter respectively. In addition, when the first connection end and the second connection end are set, the first connection end can slide relative to the second connection end along the first direction, and the first connection end is configured to be connected to the counterpart adapter before the second connection end. In the above technical solution, by connecting the optical connector to the counterpart adapter before the electrical connector, it is ensured that the channel for transmitting the optical signal is connected first, and then the channel for transmitting the electrical signal is connected, thereby avoiding the situation of fiber burning and improving the safety and reliability of the photoelectric adapter when in use.

[0007] In a specific implementation scheme, the first connection end is further configured to be disconnected from the opposite adapter after the second connection end. The electrical signal is separated first, and then the optical signal is separated, which improves the safety of the optoelectronic adapter when in use.

[0008] In a specific possible implementation, when connected with the opposite end adapter, the sliding distance of the first connection end relative to the second connection end is d1, and the fitting distance of the second connection end for inserting with the opposite end adapter is d2; d1 and d2 satisfy: d1>d2. The sliding distance of the first connection end relative to the second connection end is greater than the distance of the opposite end adapter inserting into the second connection end, thereby ensuring that the first connection end is connected to the opposite end adapter before the second connection end.

[0009] In a specific possible implementation, the optoelectronic adapter further includes a housing, the optical connector and the electrical connector are located in the housing; the first connection end can slide relative to the housing, and the second connection end is fixed relative to the housing; wherein the housing has a first end for plugging and unplugging with the opposite adapter; when not connected to the opposite adapter, the first connection end is closer to the first end than the second connection end; when connected to the opposite adapter, the second connection end is closer to the first end than the first connection end. Ensure that the first connection end is connected to the opposite adapter before the second connection end.

[0010] In a specific possible implementation manner, the electrical connector is fixedly connected to the housing. The second connection end is fixed relative to the housing by the electrical connector being fixedly connected to the housing.

[0011] In a specific possible implementation, the optical connector includes a ferrule, a first elastic member, and a ferrule seat arranged along the first direction; wherein the end of the ferrule facing away from the ferrule seat is the first connection end; the ferrule seat is fixedly connected to the housing; the ferrule is slidably connected to the ferrule seat and can slide along the first direction; the first elastic member is used to push the ferrule to slide in a direction away from the ferrule seat. The relative sliding between the ferrule and the ferrule seat ensures that the optical connector can be connected to the opposite end adapter before the electrical connector and detached from the opposite end adapter after the electrical connector.

[0012] In a specific embodiment, the first elastic member is a compression spring or a reed. Different types of elastic members are used to provide a driving force for the sliding of the insert.

[0013] In a specific possible implementation manner, a limiting protrusion for limiting the sliding distance of the ferrule in a direction away from the ferrule seat is arranged in the housing, and the distance of the ferrule away from the ferrule seat is limited by the limiting protrusion.

[0014] In a specific possible implementation, the photoelectric adapter further includes a dustproof component for shielding the first connection end; the dustproof component is rotatably connected to the housing and avoids the opposite adapter when the opposite adapter is inserted into the housing. The dustproof component improves the protection of the first connection end, reduces dust falling on the optical fiber of the optical connector, and reduces the probability of fiber burning.

[0015] In a specific implementation scheme, a guide structure is provided in the housing for guiding the opposite end adapter to be inserted into the housing; the guide structure is located on the side of the dustproof component away from the first connection end. The guide structure improves the effect of the optical adapter and the opposite end adapter being matched.

[0016] In a specific possible implementation, the dustproof assembly includes a first dustproof plate and a second dustproof plate; when the first dustproof plate and the second dustproof plate are rotated to a first set position, the first dustproof plate and the second dustproof plate shield the first connection end; when the first dustproof plate and the second dustproof plate are rotated to a second set position, the first dustproof plate and the second dustproof plate avoid the opposite end adapter. The first connection end is protected by the provided double-door dustproof assembly.

[0017] In a specific embodiment, the dustproof assembly further includes a second elastic member, which is used to push the first dustproof plate and the second dustproof plate to press against the guide structure. The second elastic member pushes the first dustproof plate and the second dustproof plate to close, thereby improving the dustproof effect.

[0018] In a specific possible implementation, when the first dustproof plate and the second dustproof plate are rotated to the first set position, the first dustproof plate and the second dustproof plate are in a V-shaped structure, and the opening direction of the V-shaped structure is away from the first connection end, so that the opposite end adapter can push the first dustproof plate and the second dustproof plate to rotate.

[0019] In a specific possible implementation, the dustproof assembly includes a third dustproof plate; when the third dustproof plate is rotated to a third setting position, the third dustproof plate blocks the first connection end; when the third dustproof plate is rotated to a fourth setting position, the third dustproof plate avoids the opposite end adapter. The first connection end is protected by a single dustproof plate.

[0020] In a specific implementation scheme, the dustproof assembly further includes a third elastic member, and the third elastic member is used to push the third dustproof plate to press against the guide structure. The third dustproof plate is pushed to close by the third elastic member, thereby improving the dustproof effect.

[0021] In a specific embodiment, the electrical connector further comprises a third connection end; the third connection end is used to electrically connect to the circuit board. The electrical connector is electrically connected to the circuit board via the third connection end.

[0022] In a specific possible implementation manner, the third connection end includes a plurality of fisheye pins; the plurality of fisheye pins are used for crimping connection with the circuit board.

[0023] In a specific possible implementation manner, the third connection end includes a plurality of adapter terminals; the plurality of adapter terminals are used for welding connection with the circuit board.

[0024] In the second aspect, a communication system is provided, which includes a first electrical component and a second electrical component; the first electrical component includes a circuit board and a first photoelectric adapter disposed on the circuit board, the first photoelectric adapter being the photoelectric adapter described in any one of the above; the second electrical component includes a second photoelectric adapter, the second photoelectric adapter being a photoelectric adapter pluggable and connected to the first photoelectric adapter. In the above technical solution, by connecting the optical connector to the opposite end adapter before the electrical connector, it is ensured that the channel for transmitting the optical signal is connected first and then the channel for transmitting the electrical signal is connected, thereby avoiding the occurrence of fiber burning and improving the safety and reliability of the photoelectric adapter when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 An architecture for transmitting optical and electrical signals in a data center in the prior art;

[0026] Figure 2 A schematic diagram of the structure of the photoelectric adapter provided in an embodiment of the present application;

[0027] Figure 3 An exploded schematic diagram of the photoelectric adapter provided in an embodiment of the present application;

[0028] Figure 4 A cross-sectional view of a photoelectric adapter provided in an embodiment of the present application;

[0029] Figure 5 to Figure 7 A flow chart of the cooperation between the optoelectronic adapter and the opposite adapter provided in the embodiment of the present application;

[0030] Figure 8 to Figure 10 A flow chart of the optoelectronic adapter and the opposite adapter being disconnected provided in an embodiment of the present application;

[0031] Fig.11 A schematic diagram of the photoelectric connector provided in an embodiment of the present application when not in use;

[0032] Fig.12 A schematic diagram of the structure of another optoelectronic connector provided in an embodiment of the present application;

[0033] Fig.13 An exploded schematic diagram of another optoelectronic connector provided in an embodiment of the present application;

[0034] Fig.14 A schematic diagram of the structure of another optoelectronic connector provided in an embodiment of the present application;

[0035] Fig.15 A schematic diagram of an application scenario of the optoelectronic connector provided in an embodiment of the present application;

[0036] Fig.16 A schematic diagram of an application scenario of the optoelectronic connector provided in an embodiment of the present application;

[0037] Fig.17 Schematic diagram of application scenarios of the optoelectronic connector provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] To facilitate understanding of the optoelectronic adapter provided in the embodiment of the present application, the optoelectronic adapter provided in the embodiment of the present application is applied to the data center application scenario to realize the connection of optical signals and electrical signals between different modules of the data center. Figure 1 , Figure 1 The data center in the prior art transmits optical and electrical signals. The data center includes a first electrical component 100 and a second electrical component 200. The first electrical component 100 is provided with a first optical connector 101 and a first electrical connector 102; the second electrical component 200 is provided with a second optical connector 201 and a second electrical connector 202.

[0039] The first optical connector 101 and the second optical connector 201 both include a plurality of optical fibers. When the first optical connector 101 and the second optical connector 201 are matched, the optical fibers of the two optical connectors are connected one by one.

[0040] The first electrical connector 102 and the second electrical connector 202 both include a plurality of power terminals, ground terminals, and signal terminals. When the first electrical connector 102 and the second electrical connector 202 are mated, the power terminals, ground terminals, and signal terminals of the two electrical connectors are connected one by one. It should be understood that the first electrical connector 102 and the second electrical connector 202 are mating male and female terminals, and the power terminals, ground terminals, and signal terminals in the first electrical connector 102 and the power terminals, ground terminals, and signal terminals in the second electrical connector 202 are pluggable male and female terminals.

[0041] When the first electrical component 100 and the second electrical component 200 are matched, the first optical connector 101 and the second optical connector 201 are plug-in connected, and the first electrical connector 102 and the second electrical connector 202 are plug-in connected, so as to respectively realize the transmission of optical signals and electrical signals between the first electrical component 100 and the second electrical component 200. Taking the first electrical component 100 having the light source 103 as an example, the second electrical component 200 supplies power to the first electrical component 100 through the matched first electrical connector 102 and the second electrical connector 202, and the light source 103 of the first electrical component 100 forms an optical signal according to the received electrical signal, and the optical signal is transmitted to the second electrical component 200 through the matched first optical connector 101 and the second optical connector 201.

[0042] In the above application scenario, when the first electrical component 100 and the second electrical component 200 are paired, the optical connectors (the first optical connector 101 and the second optical connector 201) and the electrical connectors (the first electrical connector 102 and the second electrical connector 202) are plugged in and out synchronously. When connecting, it is possible that the first electrical connector 102 and the second electrical connector 202 are connected before the first optical connector 101 and the second optical connector 201. When the first electrical connector 102 and the second electrical connector 202 are connected first, the electrical signal between the first electrical component 100 and the second electrical component 200 is already conducted, and the light source 103 generates an optical signal, but at this time the first optical connector 101 and the second optical connector 201 are not yet connected, resulting in the generated optical signal being irradiated from the end face of the optical fiber of the first optical connector 101 to the optical fiber of the second optical connector 201, resulting in the situation of burning the optical fiber, causing damage to the second optical connector 201. In order to improve the situation of fiber burning, an embodiment of the present application provides an optoelectronic adapter, which is described in detail below in conjunction with specific drawings.

[0043] refer to Figure 2 , Figure 2The schematic diagram of the structure of the photoelectric adapter provided by the embodiment of the present application is shown. To facilitate the description of the structure of the photoelectric adapter, the first end and the second end of the photoelectric adapter are first defined. The first end of the photoelectric adapter is used for plugging and unplugging with the opposite end adapter, and the opposite end adapter and the photoelectric adapter are male and female ends to each other. The second end of the photoelectric adapter is used for connecting to the circuit board. When mating with the opposite end adapter, the opposite end adapter can be connected along the first direction (see Figure 2 ) is inserted into the photoelectric adapter and can be pulled out from the photoelectric adapter along the second direction. The first direction and the second direction are opposite directions.

[0044] The functional device of the optoelectronic adapter provided in the embodiment of the present application includes an optical connector and an electrical connector; the opposite adapter that cooperates with the optoelectronic adapter also includes corresponding optical connectors and electrical connectors. For the convenience of description, the optical connector and electrical connector in the optoelectronic adapter provided in the embodiment of the present application are named as the first optical connector 20 and the first electrical connector 30, respectively; the optical connector and electrical connector of the opposite adapter are named as the second optical connector and the second electrical connector, respectively. When the optoelectronic adapter and the opposite adapter cooperate, the first optical connector 20 and the second optical connector cooperate to realize optical signal transmission, and the first electrical connector 30 and the second electrical connector cooperate to realize electrical signal transmission.

[0045] For reference Figure 3 and Figure 4 , Figure 3 The figure shows an exploded schematic diagram of the photoelectric adapter provided in the embodiment of the present application. Figure 4 1 shows a cross-sectional view of the optoelectronic adapter provided in the embodiment of the present application. The optoelectronic adapter provided in the embodiment of the present application mainly includes a housing 10, a first optical connector 20 and a first electrical connector 30. When mated with the opposite end adapter, the first optical connector 20 has a first connection end a (see Figure 4 ), the first connection end a is used to cooperate with the second optical connector of the opposite end adapter; the first electrical connector 30 has a second connection end b (see Figure 4 ), the second connection end b is used to cooperate with the second electrical connector of the opposite end adapter.

[0046] The housing 10 serves as a supporting structural component for the first optical connector 20 and the first electrical connector 30 . The first optical connector 20 and the second electrical connector 30 are located inside the housing 10 .

[0047] The shell 10 has openings at both ends, which are the first opening and the second opening. The first opening is the first end of the photoelectric adapter, and the second opening is the second end of the photoelectric adapter. The shell 10 is divided into two cavities, which are named the first cavity 11 and the second cavity 12 for the convenience of description. The first cavity 11 and the second cavity 12 are arranged along the third direction, which is perpendicular to the setting surface of the circuit board on which the shell 10 is fixed, and the third direction is perpendicular to the first direction. The first optical connector 20 is fixed in the first cavity 11, and the first connection end a of the first optical connector 20 faces the first opening; the first electrical connector 30 is fixed in the second cavity 12, and the second connection end b of the first electrical connector 30 faces the first opening. That is, the opening directions of the first connection end a and the second connection end b are the same, so that when the opposite adapter is inserted into the photoelectric adapter, the second optical connector and the second electrical connector of the opposite adapter can be connected to the first connection end a and the second connection end b respectively.

[0048] Continue to refer Figure 3 and Figure 4 The first optical connector 20 includes a ferrule 21, a first elastic member 23 and a ferrule seat 24 arranged along a first direction. The ferrule seat 24 is a component that the first optical connector 20 is fixedly connected to the housing 10. When the first optical connector 20 is assembled in the first cavity 11, the ferrule seat 24 is fixedly connected to the housing 10. The ferrule 21 is a device that the first optical connector 20 cooperates with the opposite end adapter. The end of the ferrule 21 away from the ferrule seat 24 is the first connection end a of the first optical connector 20. There are multiple optical fibers 22 in the ferrule 21. When the opposite end adapter is inserted, the optical fiber in the second optical connector is connected to the optical fiber 22 in the ferrule 21 to form a channel for transmitting optical signals.

[0049] The ferrule 21 is slidably connected to the ferrule seat 24 and can slide in a first direction. The first elastic member 23 is disposed between the ferrule 21 and the ferrule seat 24 and is used to push the ferrule 21 to slide in a direction away from the ferrule seat 24. Exemplarily, a guide rod (not shown) is disposed at one end of the ferrule 21 facing the ferrule seat 24, and a guide hole is disposed at one end of the ferrule seat 24 facing the ferrule 21. The guide rod is slidably assembled in the guide hole. The first elastic member 23 can be a compression spring, which is sleeved on the guide rod. When mated with the opposite end adapter, the second optical connector can push the ferrule 21 to slide in the first direction. Since the ferrule seat 24 is fixed to the housing 10, the first elastic member 23 is compressed, and the first elastic member 23 provides contact pressure for the connection between the ferrule 21 and the second optical connector. It should be understood that the first elastic member 23 can not only be a compression spring, but other elastic members such as a reed or an elastic arm can also be used as the first elastic member 23 in this embodiment, which will not be described in detail here.

[0050] As an optional solution, a limiting protrusion 13 is provided in the housing 10 for limiting the sliding distance of the ferrule 21 in the direction away from the ferrule seat 24. The ferrule 21 has a convex shoulder (not shown in the figure) that cooperates with the limiting protrusion 13. Under the push of the first elastic member 23, the convex shoulder presses against the limiting protrusion 13, and the first elastic member 23 is compressed. When the opposite end adapter is inserted, the first elastic member 23 provides contact pressure for the first optical connector 20 to cooperate with the second optical connector.

[0051] When the first optical connector 20 is assembled into the first cavity 11, the ferrule 21 and the ferrule seat 24 are inserted into the first cavity 11 from the second opening, and the ferrule seat 24 is fixedly connected to the housing 10. The ferrule 21 is located in the first cavity 11 and can slide in the first cavity 11.

[0052] The ferrule seat 24 can be fixedly connected to the shell 10 in different ways. For example, the ferrule seat 24 is fixedly connected to the shell 10 by a snap, or the ferrule seat 24 is fixedly connected to the shell 10 by an adhesive, or the ferrule seat 24 can also be fixedly connected to the shell 10 by threaded connectors such as bolts and screws.

[0053] As an optional solution, a guide structure 14 for guiding the opposite adapter to be inserted into the housing 10 is provided in the housing 10. The guide structure 14 is located in the first cavity 11 and close to the first opening. When the opposite adapter is inserted into the first cavity 11, it is first roughly aligned through the guide structure 14 to ensure that the opposite adapter can be accurately inserted into the first cavity 11. Then, the ferrule 21 and the second optical connector are precisely aligned to ensure that the second optical connector and the optical fiber 22 in the ferrule 21 are matched. The above-mentioned precise alignment can be coordinated by means of guide columns and guide holes, which will not be described in detail here. Exemplarily, the guide structure 14 can be a guide protrusion or a guide groove. Fig.13 The guide structure 14 shown in the example is a guide protrusion.

[0054] Continue to refer Figure 4 The first electrical connector 30 is fixedly connected to the housing 10. For example, the first electrical connector 30 and the housing 10 can be fastened or integrated. The first electrical connector 30 has a second connection end b that matches with the opposite adapter, and a third connection end c that is connected to the circuit board. The second connection end b is used to connect to the second electrical connector of the opposite adapter. The third connection end c is used to connect to the circuit board.

[0055] The second connection end b of the first electrical connector 30 has a plurality of connection terminals, which can be divided into power terminals, ground terminals and signal terminals according to their functions. In the embodiment of the present application, each connection terminal includes a pair of springs (not shown in the figure). When mated with the housing 10, the first electrical connector 30 is fixedly connected to the housing 10. The second connection end b is inserted into the second cavity 12, and the two springs in each pair of springs are respectively mortgaged to the two opposite side walls of the second cavity 12.

[0056] When multiple pairs of reeds are provided, the multiple pairs of reeds are arranged in rows along the fourth direction and in columns along the first direction, the fourth direction is perpendicular to the first direction and the third direction, Figure 4 The fourth direction is a direction perpendicular to the paper surface. Exemplarily, the multiple pairs of reeds can be arranged in different numbers of rows, such as one row, two rows or three rows, and the multiple rows of reeds are arranged along the first direction.

[0057] The multiple pairs of springs are divided into springs with different functions according to their functions, such as ground springs (ground terminals), signal springs (signal terminals) and power springs (power terminals). When the multiple pairs of springs are arranged in different rows, the springs with different functions can be located in different rows of springs as needed, which is not specifically limited in the embodiments of the present application.

[0058] The second electrical connector of the opposite adapter has a gold finger that cooperates with multiple pairs of reeds, and the gold finger has a pin corresponding to each pair of reeds. The pins are also divided into power pins, signal pins and ground pins according to the functions of the reeds. When the second electrical connector cooperates with the first electrical connector 30, the gold finger is inserted between the pairs of reeds and pressed into contact with the reeds. In an embodiment of the present application, the connection between the second connection end b of the first electrical connector 30 and the opposite adapter refers to a one-to-one correspondence connection between reeds and pins with the same function. Exemplarily, the connection between the first electrical connector 30 and the second electrical connector refers to: the power pin is connected to the power reed, the signal pin is connected to the signal reed, and the ground pin is connected to the ground reed.

[0059] Continue to refer Figure 4 The third connection end c of the first electrical connector 30 includes a plurality of fisheye pins, which are used for crimping connection with the circuit board. The fisheye pins correspond to the paired springs one by one to ensure conductive connection between the paired springs and the circuit board.

[0060] A plurality of fisheye pins are arranged on the side of the first electrical connector 30 facing the circuit board, and corresponding notches for avoiding the fisheye pins are arranged on the housing 10 to ensure that the fisheye pins can be plugged and unplugged with the circuit board. When the photoelectric adapter is fixed to the circuit board, the fisheye pins are crimped onto the circuit board, and the fisheye pins serve as both electrical connectors between the photoelectric adapter and the circuit board and connectors for fixedly connecting the photoelectric adapter and the circuit board.

[0061] When configuring the first optical connector 20 and the first electrical connector 30, it can be seen that the first connection end can slide relative to the second connection end along the first direction, and the first connection end a is configured to be connected to the opposite end adapter before the second connection end b. Figure 4 In the structure shown in , when the first optical connector 20 and the first electrical connector 30 are located in the housing 10, the first connection end a can slide relative to the housing 10, and the second connection end b is fixed relative to the housing 10. When mating with the opposite adapter, the first connection end a is first connected to the first optical connector of the opposite adapter, and the second connection end b is connected to the electrical connector of the opposite adapter later than the first connection end a. That is, when the first connection end a is connected to the second optical connector, the second connection end b is not yet connected to the second electrical connector. The second connection end b is not yet connected to the opposite adapter, including the following situations:

[0062] 1) The second connection end b is completely not in contact with the second electrical connector. The reeds with different functions in the second connection end b are not connected one-to-one with the pins with different functions of the second electrical connector. That is, the power reed is not connected to the power pin, the ground reed is not connected to the ground pin, and the signal reed is not connected to the signal pin.

[0063] 2) Some of the reeds at the second connection end b are not in contact with the second electrical connector. Any of the power reed and the signal reed at the second connection end b is not in contact with the corresponding pin in the second electrical connector. This may include the following situations:

[0064] a) The power reed is connected to the power pin, the ground reed is connected to the ground pin, but the signal reed is not connected to the signal pin;

[0065] b) The signal reed is connected to the signal pin, the ground reed is connected to the ground pin, but the power reed is not connected to the power pin;

[0066] c) The ground spring is connected to the ground pin, but the power spring is not connected to the power pin, and the signal spring is not connected to the signal pin.

[0067] To facilitate understanding of the cooperation between the first connection terminal a and the second connection terminal b provided in the embodiment of the present application and the counterpart adapter, the first electrical connector 30 and the second electrical connector are connected in the order of ground, power supply, and signal. The cooperation effect between the optoelectronic adapter and the counterpart adapter is described in detail below in conjunction with the accompanying drawings.

[0068] First reference Figure 5 , Figure 5The schematic diagram shows the state when the optoelectronic adapter and the opposite adapter just start to contact. Along the first direction, the second optical connector 50 of the opposite adapter is inserted into the first cavity 11, the ferrule of the second optical connector 50 is connected to the ferrule of the first optical connector 20, and only the ground pin is connected to the ground spring between the second electrical connector 60 and the first electrical connector 30, while the power pin and the signal pin are not connected to the power spring and the signal spring. At this time, the first optical connector 20 is connected to the opposite adapter before the first electrical connector 30.

[0069] refer to Figure 6 , the adapter at the opposite end continues to slide along the first direction, and the ferrule of the first photoelectric connector 20 slides along the first direction under the push of the second optical connector 50, and the first elastic member 23 is compressed. During the compression of the first elastic member 23, the first elastic member 23 continues to provide the contact pressure required for the connection between the first optical connector 20 and the second optical connector 50. In addition, during the continuous sliding of the adapter at the opposite end, the power pin of the second electrical connector 60 is connected to the power reed of the first electrical connector 30.

[0070] refer to Figure 7 The adapter at the opposite end continues to slide along the first direction, the first elastic member 23 continues to be compressed, and the first optical connector 20 and the second optical connector 50 continue to maintain the connection effect. During the sliding process of the adapter at the opposite end, the signal pin of the second electrical connector 60 is connected to the signal reed of the first electrical connector 30.

[0071] Depend on Figure 5 to Figure 7 It can be seen that when the optoelectronic adapter is not connected to the opposite adapter, the first connection end is closer to the first end than the second connection end; and when the optoelectronic adapter is connected to the opposite adapter, the second connection end is closer to the first end than the first connection end. Figure 7 It can be seen that when the first connection end is not connected to the other end adapter, the position A of the first connection end is located on the left side of the second connection end (the position shown by point B), and when the other end adapter is connected to the photoelectric adapter, the position C of the first connection end is located on the right side of the second connection end. Given the fixed relative position feature of the second optical connector and the second electrical connector of the other end adapter, it can be seen that when the other end adapter is just inserted into the photoelectric adapter, since the first connection end is closer to the first end than the second connection end, the second optical connector is first connected to the first optical connector, and the second electrical connector is connected to the first electrical connector only after the two optical connectors are connected.

[0072] During the process of connecting the optoelectronic adapter to the opposite adapter, the sliding distance of the first connection end is the distance from point A to point C. The distance that the opposite adapter is inserted into the first electrical connector is the distance from point B to point D. That is, the first connection end and the second connection end satisfy: when connected to the opposite adapter, the sliding distance of the first connection end relative to the second connection end is d1 (the distance from point A to point C), and the fitting distance of the second connection end for insertion with the opposite adapter is d2 (the distance from point B to point D); d1 and d2 satisfy: d1>d2.

[0073] As an optional solution, when the photoelectric adapter is not connected to the opposite adapter, the relative relationship between the first connection end and the second connection end can also be: the first connection end is farther away from the first end relative to the second connection end, or the first connection end and the second connection end are at the same distance from the first end. However, no matter which of the above settings is adopted, it is only necessary to ensure that when mating with the opposite adapter, the sliding distance of the first connection end relative to the second connection end is greater than the mating distance when the second connection end and the opposite adapter are inserted, so as to ensure that the first connection end is connected to the opposite adapter before the second connection end.

[0074] It can be seen from the above description that the timing of the photoelectric adapter and the opposite adapter provided in the embodiment of the present application when connected is: by utilizing the time difference design of the optical / electrical intermatching, the sliding distance of the floating compatible electrical intermatching (the first electrical connector 30 and the second electrical connector 60 intermatching) is achieved after the first optical connector 20 and the second optical connector 50 are intermatched. The so-called floating means that a first elastic member 23 (compression spring) is provided inside the first optical connector 20, so that in the process that the intermatching side (including the ground pin, the power pin, and the signal pin) of the second electrical connector 60 sequentially contacts and continuously moves forward with the spring of the first electrical connector 30, the first elastic member 23 is continuously compressed and retreated, but its elastic force always maintains a reliable connection between the optical intermatching surface (the connection surface of the first optical connector 20 and the second optical connector 50) between the opposite adapter and the photoelectric adapter. Thus, the channel for transmitting optical signals is connected before the channel for transmitting electrical signals, solving the problem of electrical performance connection and burning of the core end face in high-power application scenarios in the intermatching scenario.

[0075] In addition, when the opposite adapter is unplugged, the first electrical connector 30 may be detached from the opposite adapter before the first optical connector 20, that is, the first connection end is also configured to be detached from the opposite adapter after the second connection end. When the opposite adapter and the photoelectric adapter are detached, the opposite adapter is unplugged along the second direction, and the first electrical connector 30 begins to detach from the opposite adapter. During the detachment process, the reeds in the first electrical connector 30 are detached from the corresponding pins of the opposite adapter in the order of the signal reed, the power reed, and the ground reed. This is explained below in conjunction with specific drawings.

[0076] refer to Figure 8 , Figure 8 FIG. 1 is a schematic diagram showing the photoelectric adapter beginning to separate from the other end adapter. Figure 8 In the state shown, the power reed, signal reed and ground reed of the first electrical connector 30 are respectively connected to the power pin, signal pin and ground pin of the opposite adapter, that is, the first electrical connector 30 is connected to the second electrical connector 60. The first optical connector 20 is also connected to the second optical connector 50. In the process of the opposite adapter being separated from the photoelectric adapter, the signal reed in the first electrical connector 30 is separated from the signal pin of the second electrical connector 60. The first optical connector 20 slides along the second direction under the push of the first elastic member 23, but the ferrule of the first optical connector 20 is still connected to the ferrule of the second optical connector 50. After the signal reed is separated from the signal pin, the electrical signal channel between the photoelectric adapter and the opposite adapter has been disconnected, but the optical signal channel is still maintained.

[0077] refer to Fig. 9 , the adapter at the opposite end continues to slide along the second direction, the power spring of the first electrical connector 30 is disengaged from the power pin of the second electrical connector 60, and the first optical connector 20 continues to slide along the second direction under the push of the first elastic member 23, but the ferrule of the first optical connector 20 is still connected to the ferrule of the second optical connector 50.

[0078] refer to Fig.10 The adapter at the opposite end continues to slide along the second direction, and the grounding spring of the first electrical connector 30 is separated from the grounding pin of the second electrical connector 60. At this time, the first electrical connector 30 is separated from the second electrical connector 60. The first optical connector 20 is separated from the second optical connector 50.

[0079] Through the above Figure 8 to Figure 10 It can be seen that the timing of the optical first electrical connector 30 and the opposite adapter provided in the embodiment of the present application when they are disconnected is: by utilizing the sequential time difference design of the first optical connector 20 and the first electrical connector 30 when mating with the opposite adapter, it is achieved that in the process of the optoelectronic adapter being disconnected from the opposite adapter, the sliding distance of the first electrical connector 30 and the second electrical connector 60 are compatible with each other through the floating compatibility of the first optical connector 20, thereby solving the problem that in the scenario where the optoelectronic adapter and the opposite adapter are disconnected, the first optical connector 20 can maintain the connection with the opposite adapter before the first electrical connector 30 is disconnected, that is, the channel of the optical signal can be maintained before the electrical signal is disconnected, thereby avoiding the burning of the core end face in high-power application scenarios.

[0080] The optical fiber of the ferrule is burned. In addition to the above-mentioned situation where the channel for transmitting electrical signals is connected before the channel for transmitting optical signals, there is also the situation where the end of the optical fiber of the ferrule is dusty, which makes it impossible for the optical fiber of the ferrule of the first optical connector to fit tightly with the optical fiber of the opposite end adapter.

[0081] Continue to refer Figure 2 to Figure 4 The photoelectric adapter provided in this embodiment is further provided with a dustproof component 40 for shielding the first connection end, the dustproof component 40 is rotatably connected to the housing 10, and when the opposite end adapter is inserted into the housing 10, the dustproof component 40 can avoid the opposite end adapter. The dustproof component 40 includes a bracket 41, a first dustproof plate 42 and a second dustproof plate 43.

[0082] The bracket 41 is a supporting structure of the dustproof component 40. The bracket 41 is a U-shaped structure, the middle part of the U-shaped structure is open, and the two side parts are bent to form the U-shaped structure. When the bracket 41 is buckled on the housing 10, the opening of the bracket 41 is connected to the first opening of the first cavity 11, and the two bent parts are fixedly connected to the housing 10 through buckles. When the opposite end adapter is matched with the photoelectric adapter, the opposite end adapter can be inserted into the first cavity 11 through the opening of the middle part.

[0083] The shape of the opening of the bracket 41 is the same as the shape of the structure for inserting the opposite end adapter into the first cavity 11, and the size of the opening of the bracket 41 is larger than the size of the structure for inserting the opposite end adapter into the first cavity 11 to ensure that the opposite end adapter is inserted. In addition, the size of the opening and the opening of the first cavity 11 are not specifically limited in this application, and the size of the opening of the bracket 41 can be larger than, smaller than, or equal to the size of the opening of the first cavity 11.

[0084] As an optional solution, the bracket 41 and the housing 10 may also be an integral structure.

[0085] The first dustproof plate 42 and the second dustproof plate 43 are arranged in the middle part of the bracket 41 and are rotatably connected to the bracket 41. When the dustproof assembly 40 is assembled in the housing 10, the first dustproof plate 42 and the second dustproof plate 43 are located in the first cavity 11 and open inwardly, and the so-called inward opening refers to the first dustproof plate 42 and the second dustproof plate 43 rotating into the first cavity 11.

[0086] The dustproof assembly 40 is also provided with a second elastic member 44, and the number of the second elastic members 44 is two. The two second elastic members 44 are used to push the first dustproof plate 42 and the second dustproof plate 43 to the first set position respectively. Exemplarily, the second elastic member 44 is a torsion spring, one of which is mounted on a rotating shaft that is rotatably connected to the first dustproof plate 42 and the bracket 41, and one end of the torsion spring is pressed against the first dustproof plate 42, and the other end is pressed against a side wall of the first cavity 11. Under the elastic force of the torsion spring, the first dustproof plate 42 is pushed against the guide structure 14. Similarly, the other torsion spring is also set in a similar manner to push the second dustproof plate 43 against the guide structure 14.

[0087] exist Figure 3The state of the first dustproof plate 42 and the second dustproof plate 43 when they are open is shown in the figure. The first dustproof plate 42 and the second dustproof plate 43 rotate clockwise and counterclockwise respectively, and the first dustproof plate 42 and the second dustproof plate 43 rotate to the second set position. In the second set position, the first dustproof plate 42 and the second dustproof plate 43 are parallel to or approximately parallel to the two opposite side walls of the first cavity 11 to avoid the opposite end adapter. The above-mentioned second set position corresponds to the state when the opposite end adapter is inserted. When the opposite end adapter is inserted into the first cavity 11, the opposite end adapter pushes the first dustproof plate 42 and the second dustproof plate 43 to rotate inward, thereby pushing the first dustproof plate 42 and the second dustproof plate 43 away to be inserted into the first cavity 11.

[0088] refer to Fig.11 , Fig.11 The figure shows the closed state of the first dustproof plate 42 and the second dustproof plate 43. When the first dustproof plate 42 and the second dustproof plate 43 are rotated to the first setting position, the first dustproof plate 42 and the second dustproof plate 43 block the opening of the middle part of the bracket 41. At this time, the first cavity 11 is a sealed space, and the dust outside the housing 10 is blocked by the first dustproof plate 42 and the second dustproof plate 43 and cannot enter the first cavity 11.

[0089] In the first set position, the first dustproof plate 42 and the second dustproof plate 43 are pressed against the guide structure 14 of the first cavity 11. The guide structure 14 is used to limit the limiting position of the first dustproof plate 42 and the second dustproof plate 43 on the one hand, and to guide the opposite end adapter on the other hand.

[0090] When the first dustproof plate 42 and the second dustproof plate 43 are closed, the guide structure 14 is located outside the dustproof assembly 40 to ensure that the opposite adapter cooperates with the guide structure 14 when being inserted into the first cavity 11, thereby ensuring that the opposite adapter can be accurately inserted into the first cavity 11.

[0091] As an optional solution, the guide structure 14 is a V-shaped structure, and the tip of the V-shaped structure faces the first connection end of the plug core 21. When the first dustproof plate 42 and the second dustproof plate 43 are located at the first set position, the first dustproof plate 42 and the second dustproof plate 43 are respectively pressed against the two oblique edges of the guide structure 14, so that the first dustproof plate 42 and the second dustproof plate 43 are in a V-shaped structure, and the opening direction of the V-shaped structure formed by the first dustproof plate 42 and the second dustproof plate 43 is away from the first end, and the tip is toward the first connection end of the core, so as to facilitate the opposite end adapter to push the first dustproof plate 42 and the second dustproof plate 43 to rotate.

[0092] It can be seen from the above description that when the first dustproof plate 42 and the second dustproof plate 43 are rotated to the first setting position, the first dustproof plate 42 and the second dustproof plate 43 cover the first connection end; when the first dustproof plate 42 and the second dustproof plate 43 are rotated to the second setting position, the opposite end adapter is avoided. Thus, the first connection end is protected by the provided double-door dustproof assembly 40.

[0093] refer to Fig.12 and Fig.13 , Fig.12 Shown based on Figure 3 Another optical adapter of the optical adapter shown. Fig.13 for Fig.12 An exploded diagram of the optical / electrical adapter is shown. Fig.12 and Fig.13 Some of the numbers in the Figure 4 The same number in . Fig.12 The structures of the first optical connector and the first electrical connector can refer to Figure 3 The relevant description in will not be repeated here.

[0094] The photoelectric adapter provided in this embodiment is provided with a dustproof component 70 for shielding the first connection end, and the dustproof component 70 is rotatably connected to the housing 10, and when the opposite end adapter is inserted into the housing 10, the dustproof component 70 can avoid the opposite end adapter. The dustproof component 70 includes a bracket 71 and a third dustproof plate 72, and the bracket 71 and the third dustproof plate 72 are rotatably connected through a rotating shaft 74. The bracket 71 is a supporting structure of the dustproof component 70, and the bracket 71 is a plate-like structure. When the bracket 71 is buckled on the housing 10, the plate-like structure is located at a fixed part of the housing 10, and a notch 15 for inserting the third dustproof plate 72 is provided in the housing 10, and the third dustproof plate is located in the first cavity after passing through the notch 15. When the opposite end adapter cooperates with the photoelectric adapter, the opposite end adapter can be inserted into the first cavity. It should be understood that the above-mentioned bracket 71 can also be an integral structure with the housing 10, and in this case, the third dustproof plate 72 is rotatably connected to the housing 10.

[0095] like Fig.12 As shown, when the third dustproof plate 72 is rotated to the third set position, the third dustproof plate 72 blocks the first connection end; when the third dustproof plate 72 is rotated to the fourth set position, the third dustproof plate 72 avoids the opposite end adapter. The first connection end is protected by a single dustproof plate. In addition, the dustproof assembly 70 also includes a third elastic member 73, and the third elastic member 73 is used to push the third dustproof plate 72 to press against the limiting protrusion 16 of the shell 10. The side of the limiting protrusion 16 facing the first cavity is an inclined slope. When the third dustproof plate 72 is pressed against the limiting protrusion 16, it is in an inclined state, so that the opposite end adapter pushes the third dustproof plate 72 to rotate along the set direction.

[0096] As an optional solution, a guide groove for guiding the opposite end adapter to be drawn into the first cavity is provided on the limiting protrusion 16, so as to facilitate the opposite end adapter to be inserted into the first cavity. It should be understood that Fig.12 The optical adapter shown in the figure can also be used Figure 3 When the guide protrusion is used, the third dustproof plate is pressed against the guide protrusion and forms an inclined state to facilitate the insertion of the opposite end adapter.

[0097] refer to Fig.14 , Fig.14 Another photoelectric adapter provided in an embodiment of the present application is shown. Fig.14 Some of the numbers in the Figure 4 The same number in . Fig.14 and Figure 4 The difference of the optoelectronic adapter shown is that the third connection end c of the first electrical connector 30 includes a plurality of adapter terminals; the plurality of adapter terminals are used for soldering connection with the circuit board. When connected with the circuit board, the third connection end c can be fixedly connected with the circuit board by reflow soldering.

[0098] The photoelectric adapter provided in this embodiment also includes a dustproof component, which can be used Fig.11 or Fig.12 The dustproof components shown will not be described in detail here.

[0099] The embodiment of the present application also provides a communication system, which includes a first electrical component and a second electrical component; the first electrical component includes a circuit board and a first photoelectric adapter disposed on the circuit board, and the first photoelectric adapter is any of the above photoelectric adapters; the second electrical component includes a second photoelectric adapter, and the second photoelectric adapter is a photoelectric adapter that is plugged and unplugged with the first photoelectric adapter. In the above technical solution, by connecting the optical connector to the opposite end adapter before the electrical connector, it is ensured that the channel for transmitting the optical signal is connected first, and then the channel for transmitting the electrical signal is connected, thereby avoiding the occurrence of fiber burning and improving the safety and reliability of the photoelectric adapter when in use.

[0100] refer to Fig.15 , Fig.15 The schematic diagram of the structure of the interconnection between boards is shown. The first electrical component and the second electrical component are both single boards, which are named as the first single board 300 and the second single board 400 for the convenience of description. The first single board 300 and the second single board 400 can be common single boards such as backplanes and plug-in boards. When the first single board 300 and the second single board 400 are interconnected, they are connected through the first photoelectric adapter 301 and the second photoelectric adapter 401.

[0101] refer to Fig.16 , Fig.16The schematic diagram of the structure of the interconnection within the board is shown. The first electrical component is the motherboard 500, and the second electrical component is the daughterboard 600. When the motherboard 500 and the daughterboard 600 are connected, they are connected through the first photoelectric adapter 501 and the second photoelectric adapter 601.

[0102] refer to Fig.17 , Fig.17 The schematic diagram of the structure of the panel 700 is shown. The first electrical component is the panel 700, and the second electrical component is the external module 800, which can be an external light source module. When the panel 700 and the external module 800 are matched, they are connected through the first photoelectric adapter 701 and the second photoelectric adapter 801.

[0103] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A photoelectric adapter, characterized in that: include: A stacked optical connector and an electrical connector; wherein, The optical connector has a first connection end for mating with a counterpart adapter; the electrical connector has a second connection end for mating with the counterpart adapter; The first connection end and the second connection end have the same opening direction; The first connection end can slide relative to the second connection end along a first direction; the first direction is the insertion direction of the opposite end adapter; and the first connection end is configured to be connected to the opposite end adapter before the second connection end; The optoelectronic adapter further comprises a housing, wherein the optical connector and the electrical connector are located in the housing; the first connection end can slide relative to the housing, and the second connection end is fixed relative to the housing; wherein, The housing has a first end for plugging and unplugging connection with the opposite end adapter; When not connected to the opposite end adapter, the first connection end is closer to the first end than the second connection end; When connected to the opposite end adapter, the second connection end is closer to the first end than the first connection end; The first end of the housing has a first opening, and the first connecting end faces the first opening.

2. The photoelectric adapter according to claim 1, wherein: The first connection end is also configured to be detached from the opposite adapter later than the second connection end.

3. The photoelectric adapter according to claim 1 or 2, characterized in that: When connected with the opposite adapter, the sliding distance of the first connection end relative to the second connection end is d1, and the fitting distance of the second connection end for inserting with the opposite adapter is d2; d1 and d2 satisfy: d1>d2.

4. The photoelectric adapter according to claim 1 or 2, characterized in that: The electrical connector is fixedly connected to the housing.

5. The photoelectric adapter according to claim 1 or 2, characterized in that: The optical connector includes a ferrule, a first elastic member and a ferrule seat arranged along the first direction; wherein the end of the ferrule facing away from the ferrule seat is the first connection end; the ferrule seat is fixedly connected to the shell; the ferrule is slidably connected to the ferrule seat and can slide along the first direction; the first elastic member is used to push the ferrule to slide in a direction away from the ferrule seat.

6. The photoelectric adapter according to claim 4, wherein: The optical connector includes a ferrule, a first elastic member and a ferrule seat arranged along the first direction; wherein the end of the ferrule facing away from the ferrule seat is the first connection end; the ferrule seat is fixedly connected to the shell; the ferrule is slidably connected to the ferrule seat and can slide along the first direction; the first elastic member is used to push the ferrule to slide in a direction away from the ferrule seat.

7. The photoelectric adapter according to claim 5, wherein: A limiting protrusion is arranged in the shell body for limiting the sliding distance of the ferrule in a direction away from the ferrule seat.

8. The photoelectric adapter according to claim 1 or 2, characterized in that: The optoelectronic adapter also includes a dustproof component for shielding the first connecting end; The dustproof component is rotatably connected to the shell and avoids the opposite end adapter when the opposite end adapter is inserted into the shell.

9. The photoelectric adapter according to claim 8, wherein: A guide structure for guiding the opposite end adapter to be inserted into the shell is arranged in the shell; the guide structure is located at a side of the dustproof component away from the first connection end.

10. The photoelectric adapter according to claim 9, wherein: The dustproof assembly comprises a first dustproof plate and a second dustproof plate; When the first dustproof plate and the second dustproof plate rotate to a first set position, the first dustproof plate and the second dustproof plate cover the first connecting end; When the first dustproof plate and the second dustproof plate rotate to the second set position, the first dustproof plate and the second dustproof plate avoid the opposite end adapter.

11. The photoelectric adapter according to claim 10, wherein: When the first dustproof plate and the second dustproof plate are rotated to the first set position, the first dustproof plate and the second dustproof plate are in a V-shaped structure, and the opening direction of the V-shaped structure is away from the first connecting end.

12. The photoelectric adapter according to claim 8, wherein: The dustproof assembly includes a third dustproof plate; When the third dustproof plate rotates to the third setting position, the third dustproof plate covers the first connecting end; When the third dustproof plate rotates to the fourth set position, the third dustproof plate avoids the opposite end adapter.

13. The photoelectric adapter according to any one of claims 9 to 11, characterized in that: The dustproof assembly includes a third dustproof plate; When the third dustproof plate rotates to the third setting position, the third dustproof plate covers the first connecting end; When the third dustproof plate rotates to the fourth set position, the third dustproof plate avoids the opposite end adapter.

14. The photoelectric adapter according to claim 1 or 2, characterized in that: The electrical connector also includes a third connection end; the third connection end is used for electrically connecting to the circuit board.

15. The photoelectric adapter according to claim 3, wherein: The electrical connector also includes a third connection end; the third connection end is used for electrically connecting to the circuit board.

16. The photoelectric adapter according to claim 5, wherein: The electrical connector also includes a third connection end; the third connection end is used for electrically connecting to the circuit board.

17. The photoelectric adapter according to claim 14, wherein: The third connection end includes a plurality of fisheye pins; the plurality of fisheye pins are used for crimping connection with the circuit board.

18. The photoelectric adapter according to claim 14, wherein: The third connection end includes a plurality of adapter terminals; the plurality of adapter terminals are used for welding connection with the circuit board.

19. A communication system, characterized in that: comprising a first electrical component and a second electrical component; The first electrical component comprises a circuit board and a first photoelectric adapter disposed on the circuit board, wherein the first photoelectric adapter is the photoelectric adapter according to any one of claims 1 to 18; The second electrical component includes a second optoelectronic adapter, which is a counterpart adapter that is pluggably connected to the first optoelectronic adapter.

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