CN212137275U - Network communication board card integrated with lightning protection function - Google Patents
Network communication board card integrated with lightning protection function Download PDFInfo
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- CN212137275U CN212137275U CN202020715610.0U CN202020715610U CN212137275U CN 212137275 U CN212137275 U CN 212137275U CN 202020715610 U CN202020715610 U CN 202020715610U CN 212137275 U CN212137275 U CN 212137275U
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Abstract
The utility model discloses a network communication integrated circuit board of integrated lightning protection function, include: cascaded lightning protection circuit of tertiary and network communication circuit, the cascaded lightning protection circuit of tertiary includes: the network communication circuit comprises a main lightning protection circuit as a front stage, a decoupling lightning protection circuit as an intermediate stage and a precise lightning protection circuit as a rear stage, wherein the network communication circuit comprises: the optical fiber interface module comprises an Ethernet exchange chip module, a power supply module, an Ethernet photoelectric conversion module, an optical fiber interface module and a network transformer module, wherein the Ethernet exchange chip module is electrically connected with the network transformer module, the power supply module and the Ethernet photoelectric conversion module respectively, and the Ethernet photoelectric conversion module is electrically connected with the power supply module and the optical fiber interface module respectively. The utility model discloses with ethernet communication switching technique embedding in lightning protection circuit, realize the pluralism development, can provide advanced, high reliable high speed signal lightning protection communication device.
Description
Technical Field
The utility model relates to a network signal lightning protection device technical field especially relates to a network communication integrated circuit board of integrated lightning protection function.
Background
With the rapid development of computers and their interconnection technologies (also commonly called "network technologies"), ethernet has become the most popular communication method so far. In the urban road traffic monitoring system, after an optical fiber metropolitan area network is established between each local traffic and a branch monitoring center through an Ethernet, high-speed connection is realized between each branch and the branch center through a data switch, so that data resources are shared, or the Internet of things of everything is realized through the network switch; the real-time monitoring of all traffic monitoring points by the monitoring center of each area is realized, and because the safety monitoring camera is used, the running working state of network shooting monitoring is transmitted through a network, and the conditions of real-time online monitoring, traffic safety monitoring and the like for monitoring the traffic of vehicles and pedestrians around intersections and road sections are needed; however, the front-end equipment and the transmission line of the road monitoring system are mainly installed and laid outdoors and run for 24 hours, so that the system is easy to be struck by lightning, and the normal and stable running of the control system is influenced, therefore, higher requirements are also put forward for the switch at the same time, the requirements on stable and reliable transmission are met, the capability of resisting the lightning strike and the electromagnetic pulse is strong, the residual voltage is low, the structure is simple and reliable, and the maintenance and the replacement are convenient. Therefore, the applicant invents a network communication board card integrated with a lightning protection function to fill the blank in the field
SUMMERY OF THE UTILITY MODEL
The utility model aims at filling the blank in the field, provide a network communication integrated circuit board of integrated lightning protection function.
The technical scheme of the utility model as follows: the utility model provides a network communication integrated circuit board of integrated lightning protection function, include: cascaded lightning protection circuit of tertiary and network communication circuit, the cascaded lightning protection circuit of tertiary includes: the lightning protection circuit comprises a front-stage main lightning protection circuit, a middle-stage decoupling lightning protection circuit and a rear-stage precise lightning protection circuit, wherein the main lightning protection circuit is used for discharging lightning current and electromagnetic pulse, the decoupling lightning protection circuit is used for suppressing lightning current and ensuring that the main lightning protection circuit works timely to discharge the lightning current before the precise lightning protection circuit is not damaged by lightning breakdown, the precise lightning protection circuit is used for effectively discharging lightning current voltage in a quick response mode, the network communication circuit is used for realizing data exchange and communication, and the network communication circuit comprises: ethernet exchange chip module, power module, ethernet photoelectric conversion module, optic fibre mouth module and network transformer module, ethernet exchange chip module respectively with network transformer module, power module, ethernet photoelectric conversion module electric connection, ethernet photoelectric conversion module respectively with power module, optic fibre mouth module electric connection, network transformer module includes an RJ45 input interface, network communication circuit passes through RJ45 input interface with tertiary cascaded lightning protection circuit electric connection, tertiary cascaded lightning protection circuit and RJ45 output interface electric connection.
Further, main lightning protection circuit includes first discharge tube and second discharge tube, decoupling lightning protection circuit includes first to fourth resistance, accurate lightning protection circuit includes the TVS array, the first utmost point of first discharge tube respectively with the first data transmission pin of RJ45 input interface, the one end electric connection of first resistance, the second utmost point of first discharge tube respectively with the second data transmission pin of RJ45 input interface, the one end electric connection of second resistance, the first utmost point of second discharge tube respectively with the third data transmission pin of RJ45 input interface, third resistance one end electric connection, the second utmost point of second discharge tube respectively with the fourth data transmission pin of RJ45 input interface, the one end electric connection of fourth resistance, the earthing pole of first discharge tube and the earthing pole of second discharge tube all ground connection, the first resistance other end respectively with the first data transmission pin, the first data transmission pin of RJ45 output interface, the second data transmission pin of RJ 3624 output interface, the one end electric connection of fourth resistance, The second end and the seventh end electric connection of TVS array, the second resistance other end respectively with the second data transmission pin of RJ45 output interface the first end and the eighth end electric connection of TVS array, the other end of third resistance respectively with the third data transmission pin of RJ45 output interface the third end and the sixth end electric connection of TVS array, the other end of fourth resistance respectively with the fourth data transmission pin of RJ45 output interface the fourth end and the fifth end electric connection of TVS array.
Further, the first discharge tube and the second discharge tube are both H3R5-230 SMD.
Further, the ethernet switch chip module includes a switch chip with model number IP 179H.
Further, the ethernet photoelectric conversion module includes a photoelectric conversion chip, and the model is AR 8033.
Further, the power supply module comprises a PSE control unit and a DC voltage stabilizing unit, wherein the PSE control unit comprises a PSE control chip, and the model of the PSE control chip is IP 808.
Further, the network transformer module comprises a network transformer with the model number of H82407S.
By adopting the proposal, the utility model embeds the Ethernet communication exchange technology into the lightning protection circuit, thereby realizing the diversified development and providing an advanced and highly reliable high-speed signal lightning protection communication device; the three-stage stepped lightning protection circuit can decompose the discharged lightning energy in a one-stage manner, attenuate the invasion of lightning current voltage to rear-end protected equipment, provide a low and fast voltage protection level for the equipment, has the characteristic of fast corresponding lightning time protection time, and has good protection effect; the scheme selects the lightning protection component with the tiny junction capacitance, reduces the influence on the link transmission characteristic, reduces the whole insertion loss of the lightning protection circuit, and meets the requirements on the performances of high-speed transmission rate, multiple signal carrier transmission and the like.
Drawings
Fig. 1 is a schematic view of the frame structure connection of the present invention.
Fig. 2 is a schematic circuit diagram of a three-stage step-type lightning protection circuit according to an embodiment of the present invention.
Fig. 3 to 9 are schematic circuit diagrams of an ethernet switching chip module according to an embodiment of the present invention.
Fig. 10 to 15 are schematic circuit diagrams of an ethernet photoelectric conversion module and a network transformer module according to an embodiment of the present invention.
Fig. 16 to 26 are schematic circuit diagrams of a power supply module according to an embodiment of the present invention.
Fig. 27 to 30 are schematic circuit diagrams of an optical fiber port module according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to fig. 30, in this embodiment, the present invention provides a network communication board integrated with a lightning protection function, including: three-stage step type lightning protection circuit 1 and network communication circuit. The three-stage stepped lightning protection circuit 1 comprises: the lightning protection circuit comprises a front-stage main lightning protection circuit 11, a middle-stage decoupling lightning protection circuit 12 and a rear-stage precise lightning protection circuit 13, wherein the main lightning protection circuit 11 is used for discharging lightning current and electromagnetic pulse, the decoupling lightning protection circuit 12 is used for inhibiting lightning current and ensuring that the main lightning protection circuit 11 works timely to discharge the lightning current before the precise lightning protection circuit 13 is damaged by lightning breakdown, and the precise lightning protection circuit 13 is used for effectively discharging lightning current voltage in a quick response mode. The three-stage stepped lightning protection circuit 1 is electrically connected with the network communication circuit and the RJ45 output interface 7 respectively. Specifically, referring to fig. 2, in this embodiment, the main lightning protection circuit 11 includes a first discharge tube and a second discharge tube (both not labeled), the types of which are H3R5-230 SMDs, the decoupling lightning protection circuit 12 includes first to fourth resistors R1, R2, R3, and R4, the precision lightning protection circuit includes a TVS array TVS1, a first pole of the first discharge tube is electrically connected to a first data transmission pin of the RJ45 input interface (an RJ45 interface selected in this embodiment, a first, a second, a third, and a sixth pin of the RJ45 input interface are data transmission pins, and are sequentially a first to fourth data transmission pins), and one end of a first resistor R1, a second pole of the first discharge tube is electrically connected to a second data transmission pin of the RJ45 input interface and one end of a second resistor R2, and a first pole of the second discharge tube is electrically connected to a third data transmission pin of the RJ45 input interface, One end of a third resistor R3 is electrically connected to the second diode of the second discharge tube, the second diode of the second discharge tube is electrically connected to the fourth data transmission pin of the RJ45 input interface and the one end of a fourth resistor R4, the ground electrode of the first discharge tube and the ground electrode of the second discharge tube are both grounded, the other end of the first resistor R1 is electrically connected to the first data transmission pin of the RJ45 output interface 7, the second end and the seventh end of the TVS array TVS1, the other end of the second resistor R2 is electrically connected to the second data transmission pin of the RJ45 output interface 7, the first end and the eighth end of the TVS array TVS1, the other end of the third resistor R3 is electrically connected to the third data transmission pin of the RJ45 output interface 7, the third end and the sixth end of the TVS array TVS1, and the other end of the fourth resistor R4 is electrically connected to the fourth data transmission pin of the RJ45 output interface 7, The fourth end and the fifth end of the TVS array TVS1 are electrically connected. In the three-stage stepped lightning protection circuit 1 in the scheme, the main lightning protection circuit 11 at the front stage is used as the first-stage protection for discharging lightning current and electromagnetic pulse, and is characterized in that the discharged current is large and strong. The middle-stage decoupling lightning protection circuit 12 is used as a second-stage protection, plays a role in suppressing lightning current, time delay and energy coordination among circuits, and ensures that the front-stage main lightning protection circuit 11 can work in time to discharge the lightning current before the rear-stage precise lightning protection circuit 13 is damaged by lightning breakdown. The rear-stage precise lightning protection circuit 13 is used as a third-stage protection, and the response time of the lightning current and voltage corresponding to the front-stage circuit is slower than that of the rear-stage circuit, so that the rear-stage precise lightning protection circuit 13 can effectively discharge the lightning current and voltage in a quick response manner until the decoupling lightning protection circuit 12 works to enable the front-stage main lightning protection circuit 11 to timely work to discharge the lightning current.
With continuing reference to fig. 1 to fig. 30, the network communication circuit is used for data exchange and communication, and the network communication circuit includes: ethernet exchange chip module 2, power module 3, ethernet photoelectric conversion module 4, optic fibre mouth module 5 and network transformer module 6, ethernet exchange chip module 2 respectively with network transformer module 6, power module, ethernet photoelectric conversion module 4 electric connection, ethernet photoelectric conversion module 4 respectively with power module 3, optic fibre mouth module 5 electric connection. Referring to fig. 3 to 9, the ethernet switch chip module 2 is composed of a switch chip U1 and its peripheral circuits, the model of the switch chip U1 is IP179H, and the ethernet switch chip module 2 is used for data exchange. Referring to fig. 10, the network transformer module 6 includes an RJ45 input interface and a network transformer AT1, the model of the network transformer is H82407S, the network transformer is used for signal enhancement and isolation, and the network communication circuit is electrically connected to the three-stage stepped lightning protection circuit 1 through the RJ45 input interface. Referring to fig. 10 to fig. 15, the ethernet photoelectric conversion module 4 includes a photoelectric conversion chip AU1, the model is AR8033, and the ethernet photoelectric conversion module 4 is configured to perform photoelectric conversion on a signal. Referring to fig. 16 to 20 in combination, the power supply module includes a PSE control unit and a DC regulator unit, where fig. 16 to 19 are schematic circuit diagrams of the DC regulator unit, the DC regulator unit includes a plurality of regulator chips, fig. 20 to 26 are schematic circuit diagrams of the PSE control unit, the PSE control unit includes a PSE control chip SU1, the model of the PSE control chip SU1 is IP808, and the power supply module 3 is configured to supply power to the network communication circuit. Referring to fig. 27 to fig. 30, the fiber port module 5 includes a plurality of FC fiber interfaces, which can be used for data exchange with the outside.
Referring to fig. 1 to fig. 30, when the present invention is in operation, the three-stage step-type lightning protection circuit 1 can perform protection operation when suffering from lightning; at ordinary times during operation the signal passes through RJ45 output interface 7 and the transmission of cascaded lightning protection circuit of tertiary 1 arrive network communication circuit, the signal process behind ethernet exchange chip module 2 switching process, the rethread ethernet photoelectric conversion module 4 carries out photoelectric conversion, through optic fibre mouth module 5 connects the optical fiber transmission device to can realize transmitting the signal to distal end processing platform.
In summary, the scheme embeds the ethernet communication switching technology into the lightning protection circuit, thereby realizing diversified development and providing an advanced, highly reliable and high-speed signal lightning protection communication device; the three-stage stepped lightning protection circuit can decompose the discharged lightning energy in a one-stage manner, attenuate the invasion of lightning current voltage to rear-end protected equipment, provide a low and fast voltage protection level for the equipment, has the characteristic of fast corresponding lightning time protection time, and has good protection effect; the scheme selects the lightning protection component with the tiny junction capacitance, reduces the influence on the link transmission characteristic, reduces the whole insertion loss of the lightning protection circuit, and meets the requirements on the performances of high-speed transmission rate, multiple signal carrier transmission and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a network communication integrated circuit board of integrated lightning protection function which characterized in that includes: cascaded lightning protection circuit of tertiary and network communication circuit, the cascaded lightning protection circuit of tertiary includes: the lightning protection circuit comprises a front-stage main lightning protection circuit, a middle-stage decoupling lightning protection circuit and a rear-stage precise lightning protection circuit, wherein the main lightning protection circuit is used for discharging lightning current and electromagnetic pulse, the decoupling lightning protection circuit is used for suppressing lightning current and ensuring that the main lightning protection circuit works timely to discharge the lightning current before the precise lightning protection circuit is not damaged by lightning breakdown, the precise lightning protection circuit is used for effectively discharging lightning current voltage in a quick response mode, the network communication circuit is used for realizing data exchange and communication, and the network communication circuit comprises: ethernet exchange chip module, power module, ethernet photoelectric conversion module, optic fibre mouth module and network transformer module, ethernet exchange chip module respectively with network transformer module, power module, ethernet photoelectric conversion module electric connection, ethernet photoelectric conversion module respectively with power module, optic fibre mouth module electric connection, network transformer module includes an RJ45 input interface, network communication circuit passes through RJ45 input interface with tertiary cascaded lightning protection circuit electric connection, tertiary cascaded lightning protection circuit and RJ45 output interface electric connection.
2. The integrated lightning protection network communication board of claim 1, wherein the main lightning protection circuit includes a first discharge tube and a second discharge tube, the decoupling lightning protection circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a sixth resistor, a seventh resistor, a sixth resistor, a tenth resistor, a fourteenth resistor, a, the first resistance other end respectively with the first data transmission pin of RJ45 output interface the second end and the seventh end electric connection of TVS array, the second resistance other end respectively with the second data transmission pin of RJ45 output interface the first end and the eighth end electric connection of TVS array, the other end of third resistance respectively with the third data transmission pin of RJ45 output interface the third end and the sixth end electric connection of TVS array, the other end of fourth resistance respectively with the fourth data transmission pin of RJ45 output interface the fourth end and the fifth end electric connection of TVS array.
3. The network communication board card with the integrated lightning protection function of claim 2, wherein the first discharge tube and the second discharge tube are both H3R5-230 SMD.
4. The network communication board integrated with the lightning protection function according to claim 1 or 2, wherein the ethernet switching chip module comprises a switch chip with a model number of IP 179H.
5. The network communication board card integrated with the lightning protection function according to claim 1 or 2, wherein the ethernet photoelectric conversion module comprises a photoelectric conversion chip, model AR 8033.
6. The network communication board card with the integrated lightning protection function according to claim 1 or 2, wherein the power supply module comprises a PSE control unit and a DC voltage stabilizing unit, the PSE control unit comprises a PSE control chip, and the model of the PSE control chip is IP 808.
7. The network communication board card with the integrated lightning protection function according to claim 1 or 2, wherein the network transformer module comprises a network transformer, model H82407S.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020715610.0U CN212137275U (en) | 2020-04-30 | 2020-04-30 | Network communication board card integrated with lightning protection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020715610.0U CN212137275U (en) | 2020-04-30 | 2020-04-30 | Network communication board card integrated with lightning protection function |
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| CN212137275U true CN212137275U (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067648A (en) * | 2021-03-29 | 2021-07-02 | 吉林大学 | Vehicle electric control system electromagnetic pulse protection method based on optical fiber network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067648A (en) * | 2021-03-29 | 2021-07-02 | 吉林大学 | Vehicle electric control system electromagnetic pulse protection method based on optical fiber network |
| CN113067648B (en) * | 2021-03-29 | 2022-01-18 | 吉林大学 | Vehicle electric control system electromagnetic pulse protection method based on optical fiber network |
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