Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

30results about How to "Improve lightning protection ability" patented technology

Structure and manufacturing process of low-cost carbon fiber composite material sky railway train body

The invention discloses a structure and a manufacturing process of a low-cost carbon fiber composite material sky railway train body, and belongs to the technical field of application of composite materials on rail vehicles. The structure comprises a train body side wall, wherein end walls are assembled and connected to the both ends of the train body side wall; a top frame and a bottom frame arecorrespondingly assembled and connected to the inner top surface and the inner bottom surface of the train body side wall, a ceiling is assembled and connected to the outer top surface of the train body side wall, and a bogie mounting hole is formed in the ceiling; the train body side wall and the end walls both comprise reinforced rib frames, inner skins and outer skins, and grids of the reinforcing rib frames are filled with sandwich foam blocks; the ceiling comprises a sandwich panel, an upper skin and a lower skin, and the top frame, the bottom frame, the reinforcing rib frame, the inner skins, the outer skins, the upper skin and the lower skin are all integrally molded from carbon fiber composite materials; and the inner portions of the reinforcing rib frames are filled with sandwichfoam, and the purpose of satisfying the function and structure of the load bearing mode of a suspension-type train body on the premise of light weight of the train body is achieved.
Owner:SOUTHWEST JIAOTONG UNIV

Three-layer plastic optical fiber Ethernet switch

The invention discloses a three-layer plastic optical fiber Ethernet switch. The Ethernet switch comprises a network management subsystem, a driving subsystem and a switching protocol subsystem which are sequentially arranged in three layers; and routing learning and data packet forwarding are separated in a switching process, wherein the routing learning is realized by a routing protocol run by a central processing unit (CPU) of the network management subsystem, and the data packet forwarding is realized by switching circuit hardware. The Ethernet switch solves the technical problem of the absence of a plastic optical fiber Ethernet switch, has the high capacity of resisting interference and preventing lightning stroke and secrete divulgence, provides an efficient solution on the reliability and security of network communications from a hardware platform and abundant and secure network management functions, and has the functions of network storm isolation, network access authority control, IP address spoofing and hacker attack prevention and the like as core switching equipment in an autonomous system.
Owner:扬州华山光电有限公司

Tower node connection device made from composite material

The invention aims to provide a tower node connection device made from a composite material and an installation and application method. The connection device adopts all composite material for connection, and solves the influence of a metal connection member, adopted to connect a main pole and a cross arm, on the insulating performance of a composite material tower and the problems on tower weight and lightning proof arrangement brought about by the metal connection member. The device mainly comprises the main pole, a hoop and the cross arm. The hoop includes a hoop main body, an insert-connection base and a reinforcing wall. The cross arm has a round or polygonal cross section. The main pole adopts a composite material winding structure, and has a tapered whole body. The cross arm is formed by pultrusion or winding molding and has a conical or columnar structure, and the external part of the cross arm is of shed structure. The node hoop is formed by resin transfer molding, and has a boss reverse locking structure at the part insert-connected with the cross arm. The device makes full use of the insulation gap between the electrified part of the tower head and the grounding part to realize line corridor compression and lightning protection improving effects.
Owner:CHINA ELECTRIC POWER RES INST +3

Access method and system for passive beam splitting RS-485 optical fiber bus

The invention discloses an access method for a passive beam splitting RS-485 optical fiber bus. The method is characterized by including the following steps of firstly, setting an RS-485 bus control side; secondly, setting a passive RS-485 optical network local side; thirdly, setting a passive RS-485 optical network terminal; fourthly, setting a user terminal device; fifthly, sending a control signal through the RS-485 bus control side, converting the control signal into an optical signal through the passive RS-485 optical network local side, transmitting the optical signal to the passive RS-485 optical network side, and converting the optical signal into an RS-485 bus logic signal so as to control the user terminal device; sixthly, making the user terminal device convert a feedback data signal into an optical signal through the RS-485 optical network side, transmitting the optical signal to the passive RS-485 optical network local side through an optical fiber, converting the optical signal into an RS-485 bus level signal or an RS-232 level signal through the passive RS-485 optical network local side, and transmitting the RS-485 bus level signal or the RS-232 level signal to an RS-485 interface or an RS-232 interface of the RS-485 bus control side. The invention further discloses a system for implementing the method.
Owner:广东启鼎光电科技有限公司

Single-circuit power transmission line straight line side slope tower

ActiveCN103669970AImprove lightning protection abilityReduce natural disaster lossesTowersMiddle phaseEngineering
The invention relates to a single-circuit power transmission line straight line side slope tower. The single-circuit power transmission line straight line side slope tower can ensure the distance between an uphill slope side wire and the ground and reduce the height of a downhill slope side wire, and therefore the circuit lightning protection performance is improved. According to the technical scheme, the single-circuit power transmission line straight line side slope tower comprises tower legs, a tower body, a tower head, three wires and wire insulator chains, the tower head is composed of a lower wire cross arm, an upper wire cross arm, a tower window, a lower ground wire cross arm and an upper ground wire cross arm, the lower ground wire cross arm and the upper ground wire cross arm are located at the top end of the tower window, a middle phase wire is installed inside the tower window in a linkage mode, the lower wire cross arm and the upper wire cross arm are located on the two sides of the tower head respectively and respectively provided with one side phase wire in a linkage mode, and the distance between the upper wire cross arm and the ground is basically equal to the distance between the lower wire cross arm and the ground, so that the three wires which are installed inside the lower wire cross arm, the upper wire cross arm and the tower window in a linkage mode are arranged parallel to a natural mountain gradient.
Owner:STATE GRID CORP OF CHINA +1

Passive light-splitting RS-485 optical fiber bus local side system

The invention discloses a passive light-splitting RS-485 optical fiber bus local side system. The system is characterized in that the two ends of the system are connected with an RS-485 bus control terminal and a passive RS-485 optical network terminal of an industry optical fiber bus for passive light splitting respectively. The system comprises a power module, a main control panel, a plurality of plane waveguide optical dividers and a plurality of light ports which are connected. The main control panel comprises an RS-232 center control interface, an RS-485 center control interface, two RS-485 cascade interfaces, a plurality of photoelectric conversion modules and a bus arbitration processor. The RS-232 interface and the two RS-485 cascade interfaces are connected with the bus arbitration processor and the RS-485 bus control terminal. One ends of the multiple photovoltaic conversion modules are connected with the bus arbitration processor, and the other ends of the multiple photovoltaic conversion modules are connected with one ends of the plane waveguide optical dividers. The other ends of the plane waveguide optical dividers are connected with the light ports.
Owner:广东启鼎光电科技有限公司

Network transformer as well as network module and electronic device using same

The invention discloses a network transformer as well as a network module and an electronic device using the same. The network transformer comprises a plurality of coil groups, an insulating partition board and a shell provided with a plurality of pins, wherein the network transformer is assembled on a printed circuit board through the pins of the shell; the insulating partition board is arranged in the shell and connected with at least two side walls of the shell to form a plurality of isolation grooves; and each isolation groove is used for accommodating one of the coil groups. In the invention, the insulating partition board is arranged in the shell of the network transformer to form the plurality of isolation grooves in the shell so as to respectively isolate the coil groups in the network transformer, thereby the condition that when the network transformer suffers from lightning strike, instant high voltage can puncture the winding on one coil to penetrate through another group of coil to cause damage of network equipment is avoided. The invention improves the lighting-strike resisting effect of the network transformer, saves peripheral parts and achieves the cost advantage.
Owner:PEGATRON

Lightning-protected switch-signal indicating rectifier

The invention aims to provide a lightning-protected switch-signal indicating rectifier, which comprises a primary piezoresistor-redundancy bleeding-absorbing circuit array, a first inductor, a second inductor, a capacitor, a resistor-capacitor damping-absorbing circuit, a secondary piezoresistor-redundancy bleeding-absorbing circuit array and a redundancy-rectifying circuit array. A symmetrical structural design is adopted by the invention, so that the lightning-protected switch-signal indicating rectifier can perform a good lightning-protecting effect no matter high-energy electromagnetic pulses intrude from a cathode or an anode, and the integrated lightning-protecting capability of a lightning-protected switch-signal indicating-rectifier circuit is further enhanced through multi-level protection, low-pass filters and the utilization for a resistor-capacitor damping circuit with high-harmonic absorption. The lightning-protected switch-signal indicating rectifier is the circuit design of a bran-new lightning-protected switch-signal indicating rectifier, has good continuous lightning-protecting capability and can meet the working requirements of strong lightning areas with more than sixty annual mean thunderstorm days.
Owner:黄永捷 +1

Two-tower double-circuit compact linear power transmission iron tower

The invention relates to compact double straight line electric power pylon. It adopts compact parallel double backward cam arrangement to lay conducting wire, negative protection angle to lay ground wire which can effectively reduce pylon height, increase 500kV parallel transmission line thunder resistance, running safe reliability. Compared with the conventional drum type straight line pylon, the 500kV compact double straight line can reduce steel product consumption by 30%, basal concrete consumption by 10%.
Owner:NORTH CHINA POWER ENG

Combined anti-lightning shunt bar

The present invention belongs to the technical field of structure design, especially relates to a combined anti-lightning shunt bar. The combined anti-lightning shunt bar comprises a button anti-lightning shunt bar (2) and an electric lapping joint (3). One end of the button anti-lightning shunt bar and the electric lapping joint are fixedly connected through an adhesive to form one body, and at the same time, the distance between the end face of the inlet of the groove of the electric lapping joint and a first button of the button anti-lightning shunt bar is not larger than 0.5mm, so that ina required range, the anti-lightning effect of the button anti-lightning shunt bar is greatly improved, and the combined anti-lightning shunt bar can ensure that a radome is smoothly installed on an aircraft, simplifies the craft process of installation of the button anti-lightning shunt bar and saves the assembling time.
Owner:THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC

Communication method for passive beam splitting RS-485 optical fiber bus

ActiveCN104753598ASolve common mode interference, EMI, communication distance problemsAddress sabotage hazardsBus-type electromagnetic networksNetwork terminationBeam splitting
The invention discloses a communication method for a passive beam splitting RS-485 optical fiber bus. A logic signal 0 of the RS-485 bus is represented when light exists, and a logic signal 1 of the RS-485 bus is represented when light does not exist. When a bus device does not send a signal, none of light emission units of photovoltaic conversion modules of the bus device can transmit an optical signal exceeding the specific intensity; in other words, when the logic 1 of the RS-485 bus is sent, the transmission judgment function is needed, and the fault that communication can not be conducted when bus chaos happens is prevented. In passive RS-485 optical network local sides, passive RS-485 optical network terminals and user terminal devices, only one device is allowed to send a signal at each moment, and the rest of the devices are in the interception state; data sending requests of all the user terminal devices are processed through the RS-485 bus control sides, all the user terminal devices can not transmit data until receiving data sending instructions which are sent by the RS-485 bus control sides and belong to the user terminal devices, otherwise the user terminal devices are in the silent interception state.
Owner:广东启鼎光电科技有限公司

Passive light splitting RS-485 optical fiber bus single-ported terminal

The invention discloses a passive light splitting RS-485 optical fiber bus single-ported terminal which is characterized in that two ends of the terminal are connected with a passive RS-485 optical network local side of a passive light splitting RS-485 optical fiber bus and a terminal device respectively, the terminal comprises a power module, a photoelectric conversion module, a phase conversion circuit, an RS-485 driving chip, two high-speed optical coupling circuits, a non-polar automatic transmitting and receiving reversing circuit and a three-level lightning protection circuit, one end of the photoelectric conversion module is connected with one end of the phase conversion circuit, the other end of the photoelectric conversion module is connected with one end of the first high-speed optical coupling circuit and one end of the second high-speed optical coupling circuit, the other end of the first high-speed optical coupling circuit is connected with one end of the non-polar automatic transmitting and receiving reversing circuit and the RS-485 driving chip, and the other end of the non-polar automatic transmitting and receiving reversing circuit, the other end of the second high-speed optical coupling circuit and the three-level lightning protection circuit are connected with the RS-485 driving chip.
Owner:广东启鼎光电科技有限公司

Common-tower double-return compact type corner transmission iron tower

All new type of corner electric power pylon different from drum type pylon can realize 100% purpose for building compact type transmission line with dual loop in same pylon. Cooperating to compact type straight-line pylon, the corner pylon arranges conducting wires in del shape, and space between wires in three phases being same as straight-line pylon. The corner pylon includes three layers of cross arm: earth wire, upper conductor, and lower conductor. Three layers of cross arm are distributed on two sides of pylon and in same vertical plane. The cross arm of upper conductor is in use for suspending conductor in two phases; and the cross arm of lower conductor is in use for suspending conductor in lower phase. Small cross arms are added on cross arms of earth wire and upper conductor in order to solve issue of wire jumper. Features are: shrunken size of pylon head, shorter 12.0m than height of general type, light weight and raised capability of lightning proof.
Owner:NORTH CHINA POWER ENG

Common-tower double-return compact type corner transmission iron tower

All new type of corner electric power pylon different from drum type pylon can realize 100% purpose for building compact type transmission line with dual loop in same pylon. Cooperating to compact type straight-line pylon, the corner pylon arranges conducting wires in del shape, and space between wires in three phases being same as straight-line pylon. The corner pylon includes three layers of cross arm: earth wire, upper conductor, and lower conductor. Three layers of cross arm are distributed on two sides of pylon and in same vertical plane. The cross arm of upper conductor is in use for suspending conductor in two phases; and the cross arm of lower conductor is in use for suspending conductor in lower phase. Small cross arms are added on cross arms of earth wire and upper conductor in order to solve issue of wire jumper. Features are: shrunken size of pylon head, shorter 12.0m than height of general type, light weight and raised capability of lightning proof.
Owner:NORTH CHINA POWER ENG

Tower node connection device made from composite material

The invention aims to provide a tower node connection device made from a composite material and an installation and application method. The connection device adopts all composite material for connection, and solves the influence of a metal connection member, adopted to connect a main pole and a cross arm, on the insulating performance of a composite material tower and the problems on tower weight and lightning proof arrangement brought about by the metal connection member. The device mainly comprises the main pole, a hoop and the cross arm. The hoop includes a hoop main body, an insert-connection base and a reinforcing wall. The cross arm has a round or polygonal cross section. The main pole adopts a composite material winding structure, and has a tapered whole body. The cross arm is formed by pultrusion or winding molding and has a conical or columnar structure, and the external part of the cross arm is of shed structure. The node hoop is formed by resin transfer molding, and has a boss reverse locking structure at the part insert-connected with the cross arm. The device makes full use of the insulation gap between the electrified part of the tower head and the grounding part to realize line corridor compression and lightning protection improving effects.
Owner:CHINA ELECTRIC POWER RES INST +3

A passive light-splitting rs-485 optical fiber bus embedded terminal

The invention discloses a passive optical splitting RS‑485 optical fiber bus embedded terminal, which is characterized in that its two ends are respectively connected to a passive RS‑485 optical network local end and user terminal equipment of the passive optical splitting RS‑485 optical fiber bus, It includes a power module, a photoelectric conversion unit, an RS‑485 driver chip, a high-speed optocoupler isolation circuit, a non-polarity automatic transceiver circuit and a three-level lightning protection circuit. Among them, the photoelectric conversion unit is connected to one end of the high-speed optocoupler The other end of the coupling isolation circuit is connected to the non-polarity automatic transceiver reversing circuit and the RS-485 driver chip, and the RS-485 driver chip is connected to a three-level lightning protection circuit; the photoelectric conversion unit includes a transmitting unit and a receiving unit; the transmitting unit includes a laser driver and Laser; the receiving unit includes a photodiode and an amplification and comparison circuit.
Owner:广东启鼎光电科技有限公司

Two-tower double-circuit compact linear power transmission iron tower

The invention relates to compact double straight line electric power pylon. It adopts compact parallel double backward cam arrangement to lay conducting wire, negative protection angle to lay ground wire which can effectively reduce pylon height, increase 500kV parallel transmission line thunder resistance, running safe reliability. Compared with the conventional drum type straight line pylon, the 500kV compact double straight line can reduce steel product consumption by 30%, basal concrete consumption by 10%.
Owner:NORTH CHINA POWER ENG

Three-layer plastic optical fiber Ethernet switch

The invention discloses a three-layer plastic optical fiber Ethernet switch. The Ethernet switch comprises a network management subsystem, a driving subsystem and a switching protocol subsystem which are sequentially arranged in three layers; and routing learning and data packet forwarding are separated in a switching process, wherein the routing learning is realized by a routing protocol run by a central processing unit (CPU) of the network management subsystem, and the data packet forwarding is realized by switching circuit hardware. The Ethernet switch solves the technical problem of the absence of a plastic optical fiber Ethernet switch, has the high capacity of resisting interference and preventing lightning stroke and secrete divulgence, provides an efficient solution on the reliability and security of network communications from a hardware platform and abundant and secure network management functions, and has the functions of network storm isolation, network access authority control, IP address spoofing and hacker attack prevention and the like as core switching equipment in an autonomous system.
Owner:扬州华山光电有限公司

Low-cost carbon fiber composite empty rail car body and its manufacturing process

The invention discloses a structure and manufacturing process of a low-cost carbon fiber composite material empty rail car body, which belongs to the technical field of application of composite materials on rail vehicles, and includes car body side walls, and both ends of the car body side walls are assembled The end wall is connected, the inner top surface and the inner bottom surface of the side wall of the car body are respectively assembled and connected with a top frame and the bottom frame, and the outer top surface of the side wall of the car body is assembled and connected with a ceiling, and bogie mounting holes are opened on the ceiling; The side wall and the end wall of the car body all include a stiffener skeleton, an inner skin and an outer skin, and the grid of the stiffener skeleton is filled with sandwich foam blocks; the roof includes a sandwich laminate, an upper skin and a lower skin skin; the top frame, the bottom frame, the rib skeleton, the inner skin, the outer skin, the upper skin and the lower skin are all integrally molded by carbon fiber composite materials; the inside of the rib skeleton is filled with sandwich foam, The purpose of meeting the function and structure of the bearing mode of the suspended car body is achieved under the premise of light weight of the car body.
Owner:SOUTHWEST JIAOTONG UNIV

Lightning protection system for internet access of floating equipment

The invention provides a floating ground equipment network port lightning protection system, which comprises a first connection terminal network port, a second connection terminal network port, a first network port transformer T1 and a second network port transformer T2, and is characterized in that a CMT0 pin of the first network port transformer T1 is connected to a mainboard ground through a fourth resistor R4, a fourth capacitor C4 and a fifth capacitor C5 which are sequentially connected in series; a CMT1 pin of the first network port transformer T1 is connected to a mainboard ground through a third resistor R3, a third capacitor C3 and a fifth capacitor C5 which are sequentially connected in series, and a CMT2 pin of the first network port transformer T1 is connected to the mainboard ground through a second resistor R2, a second capacitor C2 and a fifth capacitor C5 which are sequentially connected in series. And a CMT3 pin of the first network port transformer T1 is connected to a mainboard ground through a first resistor R1, a first capacitor C1 and a fifth capacitor C5 which are sequentially connected in series. The lightning protection device has the beneficial effect that the lightning protection capability of the floating ground equipment is improved.
Owner:SHENZHEN JIXIANG TENGDA TECH

A passive optical splitting rs-485 optical fiber bus access method and system

The invention discloses a passive optical splitting RS-485 optical fiber bus access method, which is characterized in that it comprises the following steps: (1) setting the RS-485 bus control terminal; (2) setting the passive RS-485 optical network office (3) set the passive RS-485 optical network terminal; (4) set the user terminal equipment; (5) the RS-485 bus control terminal sends out the control signal, and the passive RS-485 optical network local end converts the control signal into The optical signal is transmitted to the passive RS-485 optical network terminal, and the optical signal is converted into an RS-485 bus logic signal to control the user terminal equipment; (6) The user terminal equipment sends the feedback data signal through the passive RS-485 optical network The terminal converts the optical signal into an optical signal, and then transmits the optical signal to the passive RS‑485 optical network central office through the optical fiber, and the passive RS‑485 optical network central office converts the optical signal into an RS‑485 bus level or RS‑485 232 level signal, transmitted to the RS-485 interface or RS-232 interface of the RS-485 bus control terminal. The invention also discloses a system for implementing the method.
Owner:广东启鼎光电科技有限公司

A passive optical splitting rs-485 optical fiber bus single-port terminal

The invention discloses a passive optical splitting RS-485 optical fiber bus single-port terminal, which is characterized in that its two ends are respectively connected to a passive RS-485 optical network local end and terminal equipment of the passive optical splitting RS-485 optical fiber bus, which includes Power supply module, photoelectric conversion module, phase conversion circuit, RS-485 driver chip, two high-speed optocoupler circuits, non-polarity automatic transmission and reception commutation circuit and three-level lightning protection circuit, wherein one end of the photoelectric conversion module is connected to the phase conversion circuit One end, the other end of the phase conversion circuit is connected to one end of the first high-speed optocoupler circuit and one end of the second high-speed optocoupler circuit, and the other end of the first high-speed optocoupler circuit is connected to one end of the non-polar automatic transceiver commutation circuit and the RS‑485 driver chip, non-polar The other end of the automatic transceiver circuit is connected to the RS‑485 driver chip, the other end of the second high-speed optocoupler circuit is connected to the RS‑485 driver chip, and the third-level lightning protection circuit is connected to the RS‑485 driver chip.
Owner:广东启鼎光电科技有限公司

A kind of passive light-splitting rs-485 optical fiber bus communication method

The invention discloses a passive light-splitting RS-485 optical fiber bus communication method. The RS-485 bus logic "0" signal is represented by light, and the RS-485 bus logic "1" signal is represented by no light; the bus device does not send a signal At this time, the light emitting unit of its own photoelectric conversion module cannot send out an optical signal exceeding the specified intensity, that is, when sending the logic "1" of the RS-485 bus, it must have a launch judgment function to prevent the failure of communication due to bus confusion ; Passive RS‑485 optical network central office, passive RS‑485 optical network terminals and user terminal equipment, only one device is allowed to send signals at each moment, and other devices are in the listening state; data transmission of all user terminal equipment All requests are processed by the RS-485 bus control terminal. All user terminal equipment can transmit data only when they receive their own data transmission instructions sent by the RS-485 bus control terminal, otherwise they are in a silent listening state.
Owner:广东启鼎光电科技有限公司

Network transformer as well as network module and electronic device using same

The invention discloses a network transformer as well as a network module and an electronic device using the same. The network transformer comprises a plurality of coil groups, an insulating partitionboard and a shell provided with a plurality of pins, wherein the network transformer is assembled on a printed circuit board through the pins of the shell; the insulating partition board is arrangedin the shell and connected with at least two side walls of the shell to form a plurality of isolation grooves; and each isolation groove is used for accommodating one of the coil groups. In the invention, the insulating partition board is arranged in the shell of the network transformer to form the plurality of isolation grooves in the shell so as to respectively isolate the coil groups in the network transformer, thereby the condition that when the network transformer suffers from lightning strike, instant high voltage can puncture the winding on one coil to penetrate through another group ofcoil to cause damage of network equipment is avoided. The invention improves the lighting-strike resisting effect of the network transformer, saves peripheral parts and achieves the cost advantage.
Owner:PEGATRON

Electric leakage protection socket with discharge metal sheets

The invention provides an electric leakage protection socket with discharge metal sheets. The electric leakage protection socket comprises a shell, a pair of power input conductors, a pair of output conductors with conductive plug bushes and a control circuit board which is used for controlling the switching-on / switching-off of the input conductors and the output conductors, wherein the power input conductors respectively have conductive pins; a pair of discharge metal sheets are correspondingly arranged in the shell; the discharge metal sheets have contact conductive positions which are in fit with the conductive pins of the power input conductors; and the two discharge metal sheets have discharge tips or arc surfaces, which face each other at intervals. The electric leakage protection socket with the discharge metal sheets has the advantages that: the discharge metal sheets and the corresponding conductors are arranged in a separated mode; a connection mode is simple and reliable; with only a set of molds, the discharge metal sheets can be interchanged for use; the discharge metal sheets are convenient to process, and materials are saved; and the discharge metal sheets are fixedand packaged in a base of the shell, and other elements cannot be influenced in a discharge process.
Owner:黄华道

A passive optical splitter rs-485 optical fiber bus multi-port terminal

The invention discloses a multi-port terminal of a passive beam splitting RS-485 optical fiber bus. The multi-port terminal is characterized in that the two ends of the multi-port terminal are connected with passive RS-485 optical network local sides of the passive beam splitting RS-485 optical fiber bus and user terminal devices, the multi-port terminal comprises a power supply module, a bus arbitration processor, a plurality of optical conversion modules, a plurality of high-speed optical couplers, multiple RS-485 interface units, two RS-485 cascading interface circuits, two optical fiber cascading interface circuits, multiple routes of RS-485 drive chips, multiple three-stage lightning protection circuits and an optical fiber uplink port circuit, the optical conversion modules, the two RS-485 cascading interface circuits and the high-speed optical couplers are connected with the bus arbitration processor, the optical uplink port circuit and two optical fiber cascading interfaces are connected with the optical conversion modules, and the RS-485 drive chips are connected with the high-speed optical couplers and the three-stage lightning prevention circuits.
Owner:广东启鼎光电科技有限公司

Grounding reference point optimizing and connecting method for star connection system of mobile communication base station

The invention discloses a grounding reference point optimizing and connecting method for a star connection system of a mobile communication base station. The method comprises the steps of newly arranging an indoor grounding bar beside a distribution box and a first-level anti-thunder box in the mobile communication base station, electrically connecting the newly arranged indoor grounding bar with the original indoor grounding bar in the mobile communication base station by a lead, disconnecting the connecting leads between the original indoor grounding bar and the distribution box, the first-level anti-thunder box and an anti-thunder earth screen of the mobile communication base station, electrically connecting the newly arranged indoor grounding bar with a lead-out conductor of the anti-thunder earth screen of the mobile communication base station and then electrically connecting the newly arranged indoor grounding bar with the grounding end of the first-level anti-thunder box and the distribution box. The grounding reference point optimizing and connecting method for the star connection system of the mobile communication base station has the advantages of solving the problem of overlong leaking path of the thunder current caused by the overlong distance between the distribution box and the first-level anti-thunder box and the indoor grounding bar of the currently operated mobile communication base station, improving the anti-thunder capacity of the mobile communication base station and avoiding large-scale alteration on the original line.
Owner:CHINA INFORMATION TECH DESIGNING & CONSULTING INST

Lightning protection device for high-voltage power transmission line tower

The invention discloses a lightning protection device for a high-voltage power transmission line tower. The device comprises a \igh-voltage power transmission line tower lightning protection device comprises a transmission line tower and cross arm The cross arm of the transmission line tower located at two sides of the upper end The cross arm away from the power transmission line tower end of the insulator string is fixed The first connecting rod is fixed on the other end of the wire holder The wire holder above a fixed electrode of the connecting rod welding The fixed electrode connecting rod is provided with a wire electrode the top end of the second connection rod to the other end of the connecting rod is provided with a movable electrode, the movable electrode connected to a rod bottom end is provided with a ground electrode, the power transmission line tower two sides of the top of a support rod, the upper end of the support rod mounted with insulation anti-flash device, the top end of the support rod is connected to flash the needle is mounted, the invention is connected to flash the needle and the insulation anti-flash device for improving lighting capability, at the same time, by wire electrode and the grounding an electrical discharge between the electrodes preventing the wire insulator string is the lightning damage.
Owner:王丽鹏

Straight slope tower for single circuit transmission line

ActiveCN103669970BImprove lightning protection abilityReduce natural disaster lossesTowersMiddle phaseEngineering
The invention relates to a single-circuit power transmission line straight line side slope tower. The single-circuit power transmission line straight line side slope tower can ensure the distance between an uphill slope side wire and the ground and reduce the height of a downhill slope side wire, and therefore the circuit lightning protection performance is improved. According to the technical scheme, the single-circuit power transmission line straight line side slope tower comprises tower legs, a tower body, a tower head, three wires and wire insulator chains, the tower head is composed of a lower wire cross arm, an upper wire cross arm, a tower window, a lower ground wire cross arm and an upper ground wire cross arm, the lower ground wire cross arm and the upper ground wire cross arm are located at the top end of the tower window, a middle phase wire is installed inside the tower window in a linkage mode, the lower wire cross arm and the upper wire cross arm are located on the two sides of the tower head respectively and respectively provided with one side phase wire in a linkage mode, and the distance between the upper wire cross arm and the ground is basically equal to the distance between the lower wire cross arm and the ground, so that the three wires which are installed inside the lower wire cross arm, the upper wire cross arm and the tower window in a linkage mode are arranged parallel to a natural mountain gradient.
Owner:STATE GRID CORP OF CHINA +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products