Optical transmit-receive assembly

Abstract

The utility model discloses an optical transmitting and receiving assembly, which comprises a shell, a transmitting and receiving control circuit board, an electro-optical converter and a photoelectric converter, and is arranged in the shell through the transmitting and receiving control circuit board, one end of the transmitting and receiving control circuit board is provided with an electrical connector, and the electrical connector is used for being electrically connected with an SFP (Small Form-factor Pluggable) connecting terminal; the electro-optical converter is used for connecting a signal sending optical fiber to convert an electric signal into an optical signal and then transmit the optical signal outwards through the optical fiber; and the photoelectric converter is used for being connected with a signal receiving optical fiber so as to convert an optical signal into an electric signal and transmit received data to the network equipment through the transceiving control circuit board. The optical module only needs to be installed once in network equipment when leaving a factory, the abrasion between the golden finger of the optical module and the SFP seat is effectively reduced, the overall cost of the optical module is relatively low, and the optical fiber access application requirement of the market can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of optical modules of network communication equipment, in particular to an optical sending and receiving component. Background Art

[0002] In today's rapidly developing economy, competition is fierce in all industries, especially in the real economy. Products made by the real economy compete not only in terms of performance and quality, but also in terms of price and cost. Therefore, cost control is particularly important for the real economy.

[0003] As the technology of the network communication industry of electronic products becomes more and more mature, users have higher and higher requirements for corresponding network speeds, and optical fiber communication products are becoming more and more popular. Optical modules are used more frequently, and the existing optical modules are mainly connected to the corresponding terminals of network devices through the gold fingers of the on-board connection connectors. During use, the gold fingers are severely worn and become unusable. The existing optical modules have a complex structure, resulting in relatively high overall costs. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide an optical transmitting and receiving component.

[0005] To achieve the above object, the optical transmitting and receiving assembly according to the embodiment of the utility model includes:

[0006] A housing, wherein the housing is installed in the network device;

[0007] A transceiver control circuit board, the transceiver control circuit board is arranged in the housing, one end of the transceiver control circuit board is provided with an electrical connector, and the electrical connector is used to electrically connect to the SFP connection terminal;

[0008] An electro-optical converter, one end of which is fixedly connected to the transceiver control circuit board, and the other end of which is used to connect to a signal transmission optical fiber, so as to convert an electrical signal into an optical signal and transmit it externally through the optical fiber;

[0009] An optoelectronic converter, one end of which is fixedly connected to the transceiver control circuit board, and the other end of which is used to connect to a signal receiving optical fiber to convert the optical signal into an electrical signal and then transmit the received data to the network device through the transceiver control circuit board.

[0010] Further, according to an embodiment of the present invention, the electrical connector is an onboard printed circuit connector, and the transceiver control circuit board is pluggably electrically connected to the SFP connection terminal via the onboard printed circuit connector.

[0011] Further, according to an embodiment of the utility model, the optical transmitting and receiving assembly further comprises an optical fiber connector, and the optical fiber connector is detachably connected to the housing;

[0012] The signal sending optical fiber and the signal receiving optical fiber are respectively connected to the electro-optical converter and the photoelectric converter through the optical fiber connector.

[0013] Further, according to an embodiment of the utility model, the optical fiber connector comprises:

[0014] A first connecting column, wherein a first elastic block is disposed on the first connecting column, and a first mounting channel is disposed at a position of the housing corresponding to the first connecting column, and the first elastic block is used to be clamped and fixed with the first mounting channel to fix the first connecting column in the first mounting channel;

[0015] A second connecting column, a second elastic block is provided on the second connecting column, a second mounting channel is provided at a position corresponding to the shell and the second connecting column, and the second elastic block is used to clamp and fix with the second mounting channel to fix the second connecting column in the second mounting channel.

[0016] Further, according to an embodiment of the present utility model, the first connecting column is a hollow structure, the signal transmission optical fiber is arranged in the first connecting column through a first optical fiber connector, and is connected to the other end of the electro-optical converter through the first optical fiber connector;

[0017] The second connecting column is a hollow structure. The signal receiving optical fiber is disposed in the second connecting column through a second optical fiber connector and is connected to the other end of the photoelectric converter through the second optical fiber connector.

[0018] Further, according to an embodiment of the utility model, a first buckle is provided on at least one side of the first optical fiber connector, a first buckle through hole is provided at the corresponding position of the first connecting column and the first buckle, and the first optical fiber connector is fastened and locked by the buckle between the first buckle and the first connecting column.

[0019] Further, according to an embodiment of the utility model, a second buckle is provided on at least one side of the second optical fiber connector, a second buckle through hole is provided at the corresponding position of the second connecting column and the second buckle, and the second optical fiber connector is fastened and locked by the buckle between the second buckle and the second connecting column.

[0020] Further, according to an embodiment of the utility model, the transceiver control circuit board includes:

[0021] The transceiver driver U1 is provided with an amplifier and a laser driver. The amplifier is used to amplify the electrical signal output by the photoelectric converter and output it to the network device through the electrical connector; the laser driver is used to output the electrical signal to the electro-optical converter to drive the electro-optical converter to convert the electrical signal into an optical signal and transmit it to the outside through the signal sending optical fiber.

[0022] Further, according to an embodiment of the present utility model, the amplifier is a low power limiting amplifier; and the laser driver is a burst mode laser driver.

[0023] Further, according to an embodiment of the utility model, the transceiver control circuit board includes:

[0024] An external memory U11, the external memory U11 is communicatively connected with the transceiver driver U1, and is used to set the working mode of the transceiver driver U1;

[0025] And / or a single-chip microcomputer controller, the single-chip microcomputer controller is communicatively connected with the single-chip microcomputer controller, and is used to set the working mode of the transceiver driver U1.

[0026] The optical transmitting and receiving assembly provided by the embodiment of the utility model is arranged in the housing through a transceiver control circuit board, and an electrical connector is provided at one end of the transceiver control circuit board, and the electrical connector is used to electrically connect with the SFP connection terminal; the electro-optical converter is used to connect the signal transmitting optical fiber to convert the electrical signal into an optical signal and transmit it to the outside through the optical fiber; the photoelectric converter is used to connect the signal receiving optical fiber to convert the optical signal into an electrical signal and transmit the received data to the network device through the transceiver control circuit board. It only needs to be installed once in the network device when leaving the factory, which effectively reduces the wear between the gold finger of the optical module and the SFP seat, and the overall cost of the optical module is relatively low, which can meet the market's demand for optical fiber access applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the optical transmitting and receiving component provided by the utility model;

[0028] Figure 2 This is a schematic diagram of the exploded structure of the optical transmitting and receiving component provided by the utility model;

[0029] Figure 3 This is a circuit diagram of the optical transmitting and receiving component provided by the utility model;

[0030] Figure 4 A schematic diagram of the structure of the photoelectric converter circuit provided by the utility model;

[0031] Figure 5A schematic diagram of the structure of the electro-optical converter circuit provided by the utility model;

[0032] Figure 6 A schematic diagram of the structure of the transceiver drive circuit provided by the utility model;

[0033] Figure 7 This is a schematic diagram of the circuit structure of the SFP connector provided by the utility model.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0035] Reference numerals:

[0036] Housing 10;

[0037] A first installation channel 101;

[0038] A second installation channel 102;

[0039] Transceiver control circuit board 20;

[0040] Electro-optical converter 30;

[0041] Photoelectric converter 40;

[0042] Optical fiber connector 50;

[0043] A first connecting column 501;

[0044] A first elastic block 5011;

[0045] A second connecting column 502;

[0046] A second elastic block 5021;

[0047] Second buckle through hole 5022;

[0048] A first optical fiber connector 503;

[0049] A second optical fiber connector 504;

[0050] Second buckle 5041;

[0051] SFP connection terminal 60;

[0052] Signal transmission optical fiber 70;

[0053] Signal receiving optical fiber 80. DETAILED DESCRIPTION

[0054] In order to make the technical personnel in the technical field better understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described in combination with the drawings in the embodiment of the present invention. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by the technical personnel in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0055] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] See also Figures 1 to 7 The embodiment of the utility model provides an optical transmitting and receiving component, including: a housing 10, a transceiver control circuit board 20, an electro-optical converter 30 and a photoelectric converter 40, wherein the housing 10 is installed in a network device; the transceiver control circuit board 20 is arranged in the housing 10, and one end of the transceiver control circuit board 20 is provided with an electrical connector, and the electrical connector is used to be electrically connected to an SFP connection terminal 60; one end of the electro-optical converter 30 is fixedly connected to the transceiver control circuit board 20, and the other end of the electro-optical converter 30 is used to connect a signal transmitting optical fiber 70, so as to convert an electrical signal into an optical signal and transmit it to the outside through the optical fiber; one end of the photoelectric converter 40 is fixedly connected to the transceiver control circuit board 20, and the other end of the photoelectric converter 40 is used to connect a signal receiving optical fiber 80, so as to convert an optical signal into an electrical signal and transmit the received data to the network device through the transceiver control circuit board 20.

[0057] like Figure 1As shown, the SFP connection terminal 60 can be installed inside the chassis of the network device. The housing 10, the transceiver control circuit board 20, the electro-optical converter 30 and the photoelectric converter 40 constitute a removable component. Among them, the electrical connector of the transceiver control circuit board 20 is an onboard printed circuit connector (gold finger distribution structure), and the transceiver control circuit board 20 is pluggable and electrically connected to the SFP connection terminal 60 through the onboard printed circuit connector; it is only installed once when leaving the factory, which effectively reduces the wear between the gold finger of the optical module and the SFP seat. Among them, the housing 10 can also be installed inside the chassis of the network device, and the chassis of the network device is led out through the external interface of the housing 10 for connecting the optical fiber transmission line. Among them, the optical signal sent from the optical fiber transmission line can be converted into an electrical signal by the photoelectric converter 40, and after the electrical signal is processed by the transceiver control circuit board 20, the output satisfies the network device to receive the signal, and is output to the network device to realize the reception of the signal. When the network device needs to send a signal, the electrical signal is output to the transceiver control circuit board 20. The transceiver control circuit board 20 can convert the electrical signal output by the network device into a driving signal of the electro-optical converter 30. The laser driving the electro-optical converter 30 emits light, thereby converting the electrical signal into an optical signal for external transmission.

[0058] See also Figure 2 The optical transmitting and receiving assembly further includes an optical fiber connector 50, which is detachably connected to the housing 10; the signal transmitting optical fiber 70 and the signal receiving optical fiber 80 are respectively connected to the electro-optical converter 30 and the photoelectric converter 40 through the optical fiber connector 50. The optical fiber can be detachably connected to the external connection end of the housing 10 through the optical fiber connector 50, wherein the optical fiber can be connected to the photoelectric / electro-optical converter 30 to realize the conversion and transmission of optical signals and signals.

[0059] like Figure 2As shown in , the optical fiber connector 50 includes: a first connecting column 501 and a second connecting column 502, wherein the first connecting column 501 is provided with a first elastic block 5011, and the housing 10 is provided with a first installation channel 101 at a position corresponding to the first connecting column 501, and the first elastic block 5011 is used to clamp and fix with the first installation channel 101, so as to fix the first connecting column 501 in the first installation channel 101; the second connecting column 502 is provided with a second elastic block 5021, and the housing 10 is provided with a second installation channel 102 at a position corresponding to the second connecting column 502, and the second elastic block 5021 is used to clamp and fix with the second installation channel 102, so as to fix the second connecting column 502 in the second installation channel 102. Specifically, the first connecting column 501 and the second connecting column 502 can be installed in the first installation channel 101 and the second installation channel 102 of the housing 10, respectively, because the elastic block is provided above the connecting column. In this way, the elastic block can be clamped and fixed with the housing 10. Thereby, the connecting column is fixed to the end of the housing 10. When disassembling, the elastic clamping block can be used to release the clamping and pull out the connecting column, so that the housing 10 and the connecting column can be separated.

[0060] See also Figure 2 The first connecting column 501 is a hollow structure, the signal transmission optical fiber 70 is arranged in the first connecting column 501 through the first optical fiber connector 503, and is connected to the other end of the electro-optical converter 30 through the first optical fiber connector 503; the second connecting column 502 is a hollow structure, the signal receiving optical fiber 80 is arranged in the second connecting column 502 through the second optical fiber connector 504, and is connected to the other end of the photoelectric converter 40 through the second optical fiber connector 504. Since both connecting columns are hollow structures, the optical fiber or the optical fiber connector can be arranged in the connecting column, and after the connecting column is inserted into the installation channel of the housing 10, the end of the optical fiber connector can contact the photoelectric converter 40 or the electro-optical converter 30 to achieve light transmission.

[0061] See also Figure 2 , at least one side of the first optical fiber connector 503 is provided with a first buckle, and the first connecting column 501 is provided with a first buckle through hole at a position corresponding to the first buckle, and the first optical fiber connector 503 is buckled and locked with the first connecting column 501. At least one side of the second optical fiber connector 504 is provided with a second buckle 5041, and the second connecting column 502 is provided with a second buckle through hole 5022 at a position corresponding to the second buckle 5041, and the second optical fiber connector 504 is buckled and locked with the second connecting column 502. Figure 2As shown in the figure, after the end of the optical fiber is connected by the optical fiber connector, it can be inserted into the connecting column and fixedly connected to the connecting column by means of a snap. In this way, the optical fiber, the optical fiber connector and the second connecting column 502 can form a whole and can be installed in the installation channel of the housing 10 in a pluggable manner. This makes the installation, connection and removal of the optical fiber more convenient.

[0062] See also Figures 4 to 6 The transceiver control circuit board 20 includes: a transceiver driver U1, which is provided with an amplifier and a laser driver. The amplifier is used to amplify the electrical signal output by the photoelectric converter 40 and output it to the network device through the electrical connector; the laser driver is used to output the electrical signal to the electro-optical converter 30 to drive the electro-optical converter 30 to convert the electrical signal into an optical signal and transmit it to the outside through the signal transmission optical fiber 70. Figure 4 Neutralization Figure 6 As shown, the photoelectric converter 40ROSA can be connected to the transceiver driver U1 through the RXIN+ and RXIN- signal terminals to output the photoelectric conversion output signal to the transceiver driver U1 through the RXIN+ and RXIN- signal terminals. The transceiver driver U1 is provided with an amplifier, and the built-in amplifier can amplify the output electrical signal of the photoelectric converter 40ROSA, and then output it to the electrical connector through the SDS_RXP0 and SDS_RXN0 signal terminals, and then output it to the network device through the electrical connector to receive and transmit data through the network device. When the network device sends data, it can send the data to the transceiver driver U1 through the SDS_TXP0 and SDS_TXN0 signal terminals, and after the transceiver driver U1 amplifies the power of the signal, it outputs it to the electro-optical converter 30 through the LASER+ and LASER- signal terminals, and drives the electro-optical converter 30 to convert the electrical signal into a corresponding optical signal, and transmit it to the outside through the optical fiber. In one embodiment of the utility model, the amplifier is a low-power limiting amplifier; and the laser driver is a burst mode laser driver.

[0063] See also Figure 6 The transceiver control circuit board 20 includes: an external memory U11 and / or a single-chip microcomputer controller, the external memory U11 is connected to the transceiver driver U1 for communication, and is used to set the working mode of the transceiver driver U1; the single-chip microcomputer controller is connected to the single-chip microcomputer controller for communication, and is used to set the working mode of the transceiver driver U1. Since the transceiver driver U1 can obtain configuration information from an external EEPROM or MCU through IIC, the working mode of the transceiver driver U1 can be set, so that the transceiver driver U1 installs the set mode to transmit and receive data.

[0064] The above are only embodiments of the utility model, but they do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features therein with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention, all of which are within the scope of protection of the present invention.

Claims

1. An optical transmitting and receiving component, characterized in that: include: A housing, wherein the housing is installed in the network device; A transceiver control circuit board, the transceiver control circuit board is arranged in the housing, one end of the transceiver control circuit board is provided with an electrical connector, and the electrical connector is used to electrically connect to the SFP connection terminal; An electro-optical converter, one end of which is fixedly connected to the transceiver control circuit board, and the other end of which is used to connect to a signal transmission optical fiber, so as to convert an electrical signal into an optical signal and transmit it externally through the optical fiber; An optoelectronic converter, one end of which is fixedly connected to the transceiver control circuit board, and the other end of which is used to connect to a signal receiving optical fiber to convert the optical signal into an electrical signal and then transmit the received data to the network device through the transceiver control circuit board.

2. The optical transmitting and receiving component according to claim 1, characterized in that: The electrical connector is an onboard printed circuit connector, and the transceiver control circuit board is electrically connected to the SFP connection terminal in a pluggable manner via the onboard printed circuit connector.

3. The optical transmitting and receiving component according to claim 1, characterized in that: It also includes an optical fiber connector, which is detachably connected to the housing; The signal sending optical fiber and the signal receiving optical fiber are respectively connected to the electro-optical converter and the photoelectric converter through the optical fiber connector.

4. The optical transmitting and receiving component according to claim 3, characterized in that: The optical fiber connector comprises: A first connecting column, wherein a first elastic block is disposed on the first connecting column, and a first mounting channel is disposed at a position of the housing corresponding to the first connecting column, and the first elastic block is used to be clamped and fixed with the first mounting channel to fix the first connecting column in the first mounting channel; A second connecting column, a second elastic block is provided on the second connecting column, a second mounting channel is provided at a position corresponding to the shell and the second connecting column, and the second elastic block is used to clamp and fix with the second mounting channel to fix the second connecting column in the second mounting channel.

5. The optical transmitting and receiving component according to claim 4, characterized in that: The first connecting column is a hollow structure, the signal sending optical fiber is arranged in the first connecting column through a first optical fiber connector, and is connected to the other end of the electro-optical converter through the first optical fiber connector; The second connecting column is a hollow structure. The signal receiving optical fiber is disposed in the second connecting column through a second optical fiber connector and is connected to the other end of the photoelectric converter through the second optical fiber connector.

6. The optical transmitting and receiving component according to claim 5, characterized in that: A first buckle is provided on at least one side of the first optical fiber connector, a first buckle through hole is provided at the first connecting column corresponding to the first buckle, and the first optical fiber connector is buckled and locked with the first connecting column through the first buckle.

7. The optical transmitting and receiving component according to claim 5, characterized in that: A second buckle is provided on at least one side of the second optical fiber connector, and a second buckle through hole is provided at the corresponding position of the second connecting column and the second buckle, and the second optical fiber connector is buckled and locked with the second connecting column through the second buckle.

8. The optical transmitting and receiving component according to any one of claims 1 to 7, characterized in that: The transceiver control circuit board comprises: A transceiver driver (U1), wherein an amplifier and a laser driver are provided inside the transceiver driver (U1), wherein the amplifier is used to amplify the electrical signal output by the photoelectric converter and output it to the network device through the electrical connector; and the laser driver is used to output the electrical signal to the electro-optical converter to drive the electro-optical converter to convert the electrical signal into an optical signal and transmit it externally through the signal sending optical fiber.

9. The optical transmitting and receiving component according to claim 8, characterized in that: The amplifier is a low power limiting amplifier; and the laser driver is a burst mode laser driver.

10. The optical transmitting and receiving component according to claim 8, characterized in that: The transceiver control circuit board comprises: An external memory (U11), the external memory (U11) being communicatively connected to the transceiver driver (U1) and used for setting a working mode of the transceiver driver (U1); and / or a single-chip microcomputer controller, the single-chip microcomputer controller being communicatively connected with the single-chip microcomputer controller and being used for setting the working mode of the transceiver driver (U1).

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