A highly reliable photoelectric conversion module

Abstract

This utility model relates to a highly reliable photoelectric conversion module, including a housing, a circuit board inside the housing, an optical transceiver at the output end of the photoelectric conversion circuit on the circuit board, and several plug-in interfaces in conjunction with the housing; fastening components are provided for the circuit board and the optical transceiver. This utility model provides a photoelectric conversion module that converts electrical signals to optical signals with independent power supply, and ensures the reliability of the module through the reasonable arrangement of plug-in interfaces and the circuit board, enabling it to remain stable under vibration and impact, and fully utilizing the surface area of ​​the housing for rapid heat dissipation, ensuring the good application of the photoelectric conversion module.

Description

Technical Field

[0001] This utility model relates to the technical field of optical components, systems or instruments, and in particular to a highly reliable photoelectric conversion module. Background Technology

[0002] A photoelectric conversion module is a device that converts optical signals into electrical signals. It is widely used in fields such as communication, automation control, and data acquisition. For example, when an industrial PLC control cabinet outputs an electrical signal, this module converts it into an optical signal, which is then transmitted to the field execution equipment via optical fiber. It generally has advantages such as high sensitivity, fast response, low noise, and good linearity.

[0003] To ensure the proper application of photoelectric conversion modules, their reliability is of particular concern, including whether they can remain stable when faced with vibration and shock, and whether they can effectively handle internal temperature rise, rapid heat conduction, and heat dissipation.

[0004] In addition, existing photoelectric conversion modules are often not powered independently, which means that external surge interference is very likely to affect the accuracy of photoelectric conversion. Furthermore, in some scenarios, it is difficult to maintain normal fiber optic link communication once the main control board fails. Utility Model Content

[0005] This invention solves the problems existing in the prior art and provides a highly reliable photoelectric conversion module.

[0006] The technical solution adopted by this utility model is a high-reliability photoelectric conversion module, including a housing, a circuit board inside the housing, an optical transceiver device at the output end of the photoelectric conversion circuit in conjunction with the circuit board, and several plug-in interfaces in conjunction with the housing; and fastening components in conjunction with the circuit board and the optical transceiver device.

[0007] Preferably, the housing includes a top cover and a base that are configured to cooperate; the plug-in interface includes a power interface, a signal interface and an optical fiber interface, and the side wall of the top cover that cooperates with the power interface, signal interface and optical fiber interface is provided with corresponding clearance channels.

[0008] Preferably, the clearance channels for the power interface and the fiber optic interface are respectively located in the middle or lower part of the longitudinal direction of the two side walls of the top cover, and the distance between the bottom of the clearance channel for the power interface and the fiber optic interface and the bottom of the side wall of the top cover is greater than 0.

[0009] Preferably, the clearance channel for the signal interface includes a support base on the base and a support groove at the bottom of the side wall of the top cover, wherein the support base and the support groove are configured to cooperate.

[0010] Preferably, the mating surfaces of the support base and the support groove are provided with a stepped structure.

[0011] Preferably, the circuit board is located above all the plug-in interfaces and optical transceivers, and the fastening assembly includes mounting screw holes that mate with the inner top of the circuit board housing. The circuit board is configured by fasteners engaging with the mounting screw holes.

[0012] Preferably, the distance between the circuit board and the inner top of the housing is greater than 0.

[0013] Preferably, the fastening assembly further includes a mounting base that mates with all of the optical transceivers, the mounting base being fixedly connected to the circuit board by fasteners.

[0014] Preferably, a sensor is disposed inside the housing, and the sensor is equipped with a communication module.

[0015] Preferably, the bottom of the outer casing is provided with several fixing ears.

[0016] This utility model relates to a highly reliable photoelectric conversion module, including a housing, a circuit board inside the housing, an optical transceiver device at the output end of the photoelectric conversion circuit in conjunction with the circuit board, and several plug-in interfaces in conjunction with the housing; and fastening components in conjunction with the circuit board and the optical transceiver device.

[0017] The beneficial effects of this utility model are that it provides a photoelectric conversion module that converts electrical signals into optical signals with independent power supply, and ensures the reliability of the module through the reasonable arrangement of plug-in interfaces and circuit boards, so that it can remain stable when facing vibration and impact, and makes full use of the surface area of ​​the shell to perform rapid heat dissipation, ensuring the good application of the photoelectric conversion module. Attached Figure Description

[0018] Figure 1 This is a top view structural diagram of the present invention; Figure 2 This is a schematic diagram of the AA-direction cross-sectional view of this utility model; Figure 3 This is a three-dimensional structural diagram of the present invention, showing the power interface and signal interface. Figure 4 This is a schematic diagram of the structure of the fiber optic interface of this utility model; Figure 5 This is a schematic diagram of the structure of the present invention with the top cover removed; Figure 6 This is a schematic diagram of the structure of this utility model with the top cover and circuit board removed; Figure 7 This is a schematic diagram of the structure of this utility model that eliminates the plug-in interface. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the embodiments, but the scope of protection of the present invention is not limited thereto.

[0020] This utility model relates to a highly reliable photoelectric conversion module, including a housing 1, a circuit board 2 inside the housing 1, an optical transceiver 3 at the output end of the photoelectric conversion circuit of the circuit board 2, and several plug-in interfaces in conjunction with the housing 1; and fastening components in conjunction with the circuit board 2 and the optical transceiver 3.

[0021] In this utility model, the photoelectric conversion module is integrated through the outer shell 1, and the power supply, electrical signal input and optical signal output are realized through the plug-in interface through the circuit board 2. The optical transceiver device 3 here is a hermetically sealed optical device, which generally includes six optical receivers and six optical transmitters arranged in pairs; Most importantly, the circuit board 2 and the optical transceiver device 3 are both secured with fastening components to ensure their reliability. In fact, the plug-in interface also has a fastening design to ensure the stability and reliability of the plug-in interface.

[0022] The outer casing 1 includes a top cover 4 and a base 5 that are configured to cooperate; the plug-in interface includes a power interface 6, a signal interface 7 and an optical fiber interface 8, and the side wall of the top cover 4 that cooperates with the power interface 6, signal interface 7 and optical fiber interface 8 is provided with a corresponding clearance channel 9.

[0023] The clearance channels 9 for the power interface 6 and the fiber optic interface 8 are respectively located in the middle or lower part of the longitudinal direction of the two side walls of the top cover 4, and the bottom of the clearance channel 9 for the power interface 6 and the fiber optic interface 8 is greater than 0.

[0024] The clearance channel 9 that works with the signal interface 7 includes a support base 10 on the base 1 and a support groove 11 at the bottom of the side wall of the top cover 4. The support base 10 and the support groove 11 are configured to work together.

[0025] The mating surfaces of the support base 10 and the support groove 11 are provided with a stepped structure 12.

[0026] In this utility model, the clearance channel 9 is actually a through hole used to set the power interface 6, signal interface 7 and fiber optic interface 8; The power interface 6 and the fiber optic interface 8 are located in the middle of the side wall of the top cover 4, that is, the corresponding clearance channel 9 is located in the middle of the side wall of the top cover 4, so that the outer edge of the corresponding power interface 6 and fiber optic interface 8 is a reliable side wall structure with sufficient width to support the interface, preventing power loss and fiber optic detachment due to loosening, and also avoiding damage to the power cord and fiber optic due to long-term loosening. Since the outer diameter of the signal interface 7 is relatively large, in order to prevent the corresponding clearance channel 9 (through hole) from being set in the middle of the side wall of the top cover 4, the width of its outer edge is too small and the reliability is reduced. Therefore, a supporting structure of support seat 10 and support groove 11 is set on the base 5 and the top cover 4 respectively to better support the signal interface 7. Furthermore, a stepped structure 12 is set to avoid one-sided contact or suspension during assembly, reduce assembly stress, ensure accurate positioning of components, and ensure high load-bearing capacity and durability between the two.

[0027] The circuit board 2 is located above all the plug-in interfaces and optical transceivers 3. The fastening assembly includes mounting screw holes 13 that are fitted to the top inner side of the housing 1 of the circuit board 2. The circuit board 2 is fitted to the mounting screw holes 13 by fasteners 14.

[0028] The distance between the circuit board 2 and the inner top of the outer casing 1 is greater than 0.

[0029] In this invention, the circuit board 2 is located on top of all the components. The power interface 6, signal interface 7 and fiber optic interface 8 are all connected to the circuit board 2 via L-shaped conductive pins 15. By connecting the circuit board 2 to the top inner side of the housing 1, the space in the upper inner side of the housing 1 can be fully utilized, and the space in the lower inner side of the housing 1 can be made as spacious as possible to house the optical transceiver 3. This avoids the wire harness of the optical transceiver 3 from getting tangled with any existing support components, thereby making the fixing reliability of the circuit board 2 stronger. Furthermore, the distance between the circuit board 2 and the inner top of the housing 1 is greater than 0, which preserves sufficient heat dissipation space and makes full use of the heat dissipation plane on the upper surface of the housing 1 to improve heat dissipation efficiency.

[0030] The fastening assembly also includes a mounting base 16 that mates with all of the optical transceivers 3, and the mounting base 16 is fixedly connected to the circuit board 2 by fasteners 14.

[0031] In this invention, considering that the optical transceiver device 3 has higher requirements for stability, the optical transceiver device 3 is uniformly integrated and fixed by the fixing seat 16 on the basis of setting the circuit board 2, and the fixing seat 16 is connected to the circuit board 2. In practical applications, the fixing seat 16 is a strip with through holes corresponding to the optical transceiver device 3, which can effectively realize the arrangement of the optical transceiver device 3.

[0032] In practical applications, the circuit board 2 and the mounting base 16 can be fixedly connected to the mounting screw holes 13 on the top inner side of the housing 1 by a common fastener 14, which reduces the assembly difficulty.

[0033] The housing 1 is equipped with a sensor 17, and the sensor 17 is equipped with a communication module.

[0034] In this invention, sensor 17 includes, but is not limited to, a temperature sensor, used to transmit the sensed signal in the photoelectric conversion module to the outside via the communication module based on a preset frequency; the communication module is generally connected to the control terminal via Wi-Fi or Bluetooth.

[0035] The bottom of the outer casing 1 is provided with several fixing ears 18.

[0036] In this utility model, in order to further ensure the reliability of the photoelectric conversion module, several fixing ears 18 are provided at the bottom of the outer shell 1, or more precisely at the corner (or any position on the outer edge) of the base 1, to meet the requirement of fixing the photoelectric conversion module in a preset position.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly reliable photoelectric conversion module, characterized in that: The device includes a housing, within which a circuit board is provided. An optical transceiver is provided at the output end of the photoelectric conversion circuit of the circuit board. The housing is provided with several plug-in interfaces, including a power interface, a signal interface, and an optical fiber interface. A fastening assembly is provided in conjunction with the circuit board and the optical transceiver. The fastening assembly includes mounting screw holes located on the inner top of the housing in conjunction with the circuit board, and mounting bases for all the optical transceivers.

2. The high-reliability photoelectric conversion module according to claim 1, characterized in that: The housing includes a top cover and a base that are fitted together; the side wall of the top cover that is fitted with the power interface, signal interface and optical fiber interface is provided with corresponding clearance channels.

3. The high-reliability photoelectric conversion module according to claim 2, characterized in that: The clearance channels for the power interface and the fiber optic interface are respectively located in the middle or lower part of the longitudinal direction of the two side walls of the top cover, and the distance between the bottom of the clearance channel for the power interface and the bottom of the side wall of the top cover is greater than 0.

4. The high-reliability photoelectric conversion module according to claim 2, characterized in that: The clearance channel for the signal interface includes a support base on the base and a support groove at the bottom of the side wall of the top cover, wherein the support base and the support groove are configured to cooperate.

5. A high-reliability photoelectric conversion module according to claim 4, characterized in that: The mating surfaces of the support base and the support groove are provided with a stepped structure.

6. The high-reliability photoelectric conversion module according to claim 1, characterized in that: The circuit board is located above all the plug-in interfaces and optical transceivers, and the circuit board is configured by fasteners and mounting screw holes.

7. A high-reliability photoelectric conversion module according to claim 6, characterized in that: The distance between the circuit board and the top inner side of the casing is greater than 0.

8. A high-reliability photoelectric conversion module according to claim 1, characterized in that: The mounting base is fixedly connected to the circuit board by fasteners.

9. A high-reliability photoelectric conversion module according to claim 1, characterized in that: The housing contains a sensor, and the sensor is equipped with a communication module.

10. A high-reliability photoelectric conversion module according to claim 1, characterized in that: The bottom of the outer casing is provided with several fixing ears.

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