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75results about How to "Implement redundant design" patented technology
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High-voltage safe protecting system for electric vehicle
ActiveCN105150854APrevent system malfunctionImprove high voltage safety protectionElectric devicesVehicular energy storageEmbedded systemInsulation resistance
The invention discloses a high-voltage safe protecting system for an electric vehicle. An interlocking loop state of a high-voltage loop and the insulation resistance of a high-voltage system are detected through a battery managing system, and the system can change into a high-voltage power-off process to diagnose the interlocking signal states of the loop in the abnormal situation. The collision state signals can be detected and sent a whole-vehicle controller and the battery managing system through a safe air bag manager. In collision, the whole-vehicle controller and the battery managing system can change into a high-voltage power-off process and enable the whole-vehicle high voltage to be switched off. The high-voltage safe protecting system greatly improves high-voltage safety of the electric vehicle.
Owner:FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
Shape memory alloy (SMA) group rolling rod type large load releasing mechanism
InactiveCN103231813AStrong impact resistanceLarge release loadCosmonautic component separationShape-memory alloyShock resistance
The invention provides a shape memory alloy (SMA) group rolling rod type large load releasing mechanism. A segmented nut of the mechanism is firmly hooped by a hooping cylinder through rolling rods, simultaneously the upper end face and the lower end face of the segmented nut are respectively matched with an end cover and a separating ejector block, so that the segmented nut is a total nut and cannot move vertically. Groove are arranged on the segmented nut, so that when separation is needed, and the hooping cylinder moves downwards to drive the rolling rods to roll downwards and properly enter the grooves of the segmented nut when moving to a certain position, so that the segmented nut can obtain radial displacement. When releasing is finished, the hooping cylinder moves upwards under the effect of an SMA reset spring and simultaneously push the rolling rods out from the grooves, and the segmented nut draws close toward the inside to form an integral thread, so that repeated using function of the mechanism can be achieved, the segmented nut is fit with the separating ejector block through a conical surface, and the separating ejector block is matched with the hooping cylinder through two end faces. The shape memory alloy (SMA) group rolling rod type large load releasing mechanism is strong in shock resistance, releases large load and has the redundancy design and high reliability.
Owner:BEIHANG UNIV +1
Variable-frequency speed regulating system for starting high-power pumped storage unit
InactiveCN101924508AEasy to modularizeImplement redundant designMultiple dynamo-motor startersEnergy industryHarmonicPower grid
The invention relates to a variable-frequency speed regulating system for starting a high-power pumped storage unit in the technical field of water pumps, comprising a static frequency converter (SFC), an input circuit breaker, an output circuit breaker, a grid-connected switch, an excitation device, wherein a power grid is connected with the input circuit breaker sequentially connected with the static frequency converter, the output circuit breaker and the excitation device, the excitation device is connected with the grid-connected switch, and the other end of the grid-connected switch is connected to a circuit between the power grid and the input circuit breaker. The static frequency converter is a high-voltage frequency converter formed by connecting in series and stacking power units of an insulated gate bipolar transistor (IGBT). The static frequency converter of the variable-frequency speed regulating system has the characteristics of concise system structure, convenient maintenance, rapid response, accurate control, less harmonic content, reliable running, high efficiency and low reactive power impact.
Owner:SHANGHAI JIAO TONG UNIV
Kilowatt-level rock output three-redundancy electro-hydraulic digital servo system
ActiveCN105443451ACompact structureRealize regulationFluid-pressure actuator componentsElectro hydraulicClosed loop
A kilowatt-level rock output three-redundancy electro-hydraulic digital servo system is composed of a digital servo controller and a rock output electro-hydraulic servo mechanism. According to the scheme, three independent sub-controllers in the controller carry out control over a servo valve with three front levels on the servo mechanism, and a three-redundancy feedback potentiometer feeds back the position of a piston rod to the three sub-controllers so as to form a closed loop. According to the technical scheme, under the situation that one path of the servo valve is in open circuit, it can still be guaranteed that the system normally works, a dynamic pressure feedback hardware device of a traditional servo valve is eliminated, a software algorithm is adopted for replacement for the controller, and the beneficial effect of flexible parameter adjustment is achieved. In addition, a previous tilting axis constant pump is replaced with a direct-axis variable displacement piston pump in the system, compared with the prior art, rapid starting performance is improved, and self regulation of flow is achieved, wherein a previous overflow valve is eliminated. Finally, a composite seal and a double-way seal are adopted in a key linear movement sealing part in the system to replace a previous O-shaped ring and a previous one-way seal, and compared with the prior art, long-term storage and service life prolonging of products are better facilitated.
Owner:BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
10/100M Ethernet double interface switching method based upon carrier detect and device thereof
InactiveCN101753284ALow costImprove reliabilityError preventionData switching by path configurationCarrier signalEmbedded system
The invention relates to a 10 / 100M Ethernet double interface switching method based upon carrier detect and a device thereof. According to the principle of automatic negotiation mechanism, the method detects the working state of the link by hardware method in no association with application software and operating system, and all hardware completes automatic switching between double redundant network interfaces and link. By using all hardware method, the invention monitors the working states of network card and network link, wherein the network link is switched to a standby network link in the case that the working state is in error. The invention implements quick automatic switching between two network links without interferences from the application software and the operating system and implements double link redundancy design with low cost, thereby improving the reliability of network transmission. The invention can be applied to all military and civil fields with the requirement of high network transmission reliability.
Owner:NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
Track traffic rotation speed sensor based on magnetism principle
InactiveCN103913590AIncrease the number ofHigh densityLinear/angular speed measurementSignal processing circuitsPhase difference
The invention discloses a track traffic rotation speed sensor based on the magnetism principle. The track traffic rotation speed sensor based on the magnetism principle comprises a base, a shaft system assembly and a cover. Circuit modules and a magnetic code disc are arranged in a cavity defined by the base and the cover. The magnetic code disc is fixed to the upper end of a rotary shaft. A plurality of magnetic pole pairs are arranged on the circumference of the magnetic code disc. The N poles and the S poles of the magnetic pole pairs are distributed alternately. Each circuit module comprises a magnetic sensitive element and a circuit board. The magnetic sensitive elements are right opposite to the magnetic poles of the magnetic pole pairs of the magnetic code disc. As the magnetic code disc rotates, the N poles and the S poles of the magnetic pole pairs approach the magnetic sensitive elements alternately, the magnetic sensitive elements sense the magnetic field changes, and signal processing circuits in the circuit boards process sensing signals and output pulse signals. The multiple circuit modules can be fixed in the cavity, each circuit module is internally provided with two magnetic sensitive elements with the phase difference of 90 degrees. The track traffic rotation speed sensor based on the magnetism principle can measure the rotation speed of the rotary shaft accurately, and is good in pollution resistance, not prone to aging and simple in structure.
Owner:NINGBO CRRC TIMES TRANSDUCER TECH CO LTD
Artificial intelligence-based dining management system for smart clean energy restaurant
PendingCN108305188AConducive to complementary advantagesReduce pollutionData processing applicationsSimultaneous control of multiple variablesCommunication unitState diagram
The embodiments of the present invention provide an artificial intelligence-based dining management system for a smart clean energy restaurant. The system includes a clean energy power generation system, a plurality of table sensing units, a wireless communication unit, a restaurant people quantity detection device, a processing device, a restaurant robot and a restaurant unmanned aerial vehicle;each table sensing unit is used for detecting the occupancy and idle state of a corresponding table; the restaurant people quantity detection device detects the quantity of people who dine in the restaurant at present; the processing device generates a current real-time table state diagram and the availability rate of the restaurant according to the identifiers and state data of tables, and the identifiers of tables which are in reserved states, and obtains the quantity of users who dine currently; the restaurant robot is used for displaying the real-time table state diagram, the availabilityrate, and the quantity of the users who dine currently in the restaurant, and interacts with users through a voice interaction mode; the restaurant unmanned aerial vehicle is used for monitoring an environment inside the restaurant and performing early warning. With the system adopted, dining experience can be optimized, time for searching tables can be saved, and a dining environment can be improved.
Owner:郭树军
Safe torque turn-off circuit and system
ActiveCN106877291AIncreased Safety Integrity LevelPrevent fault accumulationElectric motor controlCurrent/voltage measurementDynamic monitoringEngineering
The invention discloses a safe torque turn-off circuit and system. The safe torque turn-off circuit comprises a power source module, an input module, an execution module and an STO diagnosis module. Double channel redundancy design is adopted in each of the input module and the execution module. Double channel design is adopted in an output passageway, dynamic detection of an output module is realized in a zero vector state, fault accumulation can be prevented, and diagnosis coverage rates can be improved. The double channel redundancy design is also adopted in an input passageway, dynamic monitoring of the input module can be realized via transmission of two channels of test narrow pulses with certain phase difference between the same, and the diagnosis coverage rates can be improved.
Owner:NANJING ESTUN AUTOMATION CO LTD
Three-level train control vehicle-mounted control system cabinet of Chinese train control system
ActiveCN103802862AImplement redundant designImprove reliabilityRailway signalling and safetyThree levelControl system
The invention provides a three-level train control vehicle-mounted control system cabinet of a Chinese train control system (CTCS). The three-level train control vehicle-mounted control system cabinet of the CTCS comprises two connected safety control computer modules, a first driver operation platform and service braking interface module and a first emergency braking interface module, and further comprises a second driver operation platform and service braking interface module and / or a second emergency braking interface module, wherein the first driver operation platform and service braking interface module is connected with the two safety control computer modules, and the second driver operation platform and service braking interface module is connected with the two safety control computer modules. Due to the fact that one driver operation platform and service braking interface module and / or one emergency braking interface module are / is additionally arranged in the system cabinet, the redundancy design of interfaces is achieved, two sets of working modes can be adopted in the interfaces, and when one set of interface modules break down and the train operation is stopped, the other set of standby devices can be started, the reliability of a train is improved, and the normal operation of the train is further guaranteed.
Owner:BEIJING RAILWAY SIGNAL
Power-split hybrid driving device with blocking function
InactiveCN101628542AImprove efficiencyImplement redundant designGas pressure propulsion mountingPlural diverse prime-mover propulsion mountingClutchFrequency changer
The invention belongs to a hybrid driving device for a vehicle, and in particular discloses a power-split hybrid driving device with blocking function. A planetary gear comprises a gear ring, a planet carrier, planet gears and a sun gear; the gear ring is meshed with a plurality of planet gears positioned in the gear ring; the plurality of planet gears are meshed with the same sun gear; the planet carrier is fixedly connected with the plurality of planet gears; the outer periphery of the gear ring is fixedly connected with an engine; a first motor is fixedly connected with the sun gear; one end of a second motor is fixedly connected with the planet carrier, while the other end is connected with a mechanical gearbox; and a lockup clutch is arranged between any two parts of the gear ring, the planet carrier and the sun gear. The device ensures that a power-driven system of the vehicle has multiple working modes and keeps high-efficiency operation, and simultaneously ensures that the vehicle still can normally run under the condition of the failure of the motor or a frequency convertor.
Owner:CHINA NORTH VEHICLE RES INST
Switch component for direct-current breaker and direct-current breaker
ActiveCN108233330ACompact structureHigh degree of modularityModifications for power electronicsEmergency protective arrangements for automatic disconnectionCapacitanceDc circuit breaker
The invention relates to a switch component for a direct-current breaker and the direct-current breaker. The switch component comprises switch power modules, each of the switch power modules comprisesa first bridge arm and a second bridge arm, which are connected in series, as well as a capacitance valve group and at least two fully controlled device valve groups; the first bridge arm and the second bridge arm are both formed by connecting two uncontrolled device valve groups in series in the same direction; the switch component further comprises a front-row uncontrolled device valve segment,a fully controlled device valve segment and a rear-row uncontrolled device valve segment which are successively arranged at intervals along the front-and-back direction, in each switch power module,the uncontrolled device valve groups in the first bridge arm and the second bridge arm are connected in the front-row uncontrolled device valve segment in a pressed mode, the uncontrolled device valvegroup in the lower bridge arm is connected in the rear-row uncontrolled device valve segment in a pressed mode, and the fully controlled device valve groups are connected in the fully controlled device valve segment in a pressed mode. By symmetrically arranging the front-row uncontrolled device valve segment and the rear-row uncontrolled device valve segment on two sides of the fully controlled device valve segment, the switch component not only has a compact structure and is high in modularization degree but also is convenient for assembly and wiring.
Owner:XJ ELECTRIC +1
Normal temperature pressure supplementing system with redundancy function
ActiveCN103670799ANormal compensating effectImplement redundant designRocket engine plantsHydrogenControl system
A normal temperature pressure supplementing system with the redundancy function comprises a hydrogen box pressure supplementing system and an oxygen box pressure supplementing system. The oxygen box pressure supplementing system is composed of two solenoid valves, pressure signal devices, a hole plate and a corresponding guide pipe. The opening and closing of the solenoid valves are controlled through the pressure signal devices. The redundancy designing of the oxygen box pressure supplementing system is achieved by controlling the opening pressure and the closing pressure of the two pressure signal devices. The hydrogen box pressure supplementing system is composed of two solenoid valves, pressure signal devices, a hole plate, a control system and a corresponding guide pipe, and the redundancy designing of the hydrogen box pressure supplementing system is achieved by controlling the power supply time for the solenoid valves.
Owner:BEIJING INST OF ASTRONAUTICAL SYST ENG +1
Method for semantic switch loose coupling system to process information
ActiveCN103957174AEliminate the flue modelRealize data sharingData switching networksRelational databaseMulti platform
The invention provides a method for a semantic switch loose coupling system to process information. The method comprises the steps that a service pool is arranged at each service processing node, and each service pool is a semantic switch cluster used for finishing the same semantic operation and composed of n semantic switches with the same function; a runtime database, a configuration sub-module and a semantic processing program are configured for each semantic switch, wherein the semantic processing program is the program compiled by a user according to the client service logic, and the semantic switches can have different service processing functions through compiling of different programs; a non-relation database cluster is adopted in each runtime database and used for storing data records with the JSON format, and each data record has a unique record ID; the record IDs serve as marks of a URI and can be accessed; body descriptions and relation descriptions are defined in the configuration sub-modules. The method has the advantages that a flue model of a traditional information system is eliminated, and data sharing of a multi-platform heterogeneous system is achieved.
Owner:通明智云(北京)科技有限公司
Compact and dual-redundancy absolute-type coder
ActiveCN110736486AReduce system sizeSmall sizeConverting sensor output electrically/magneticallyChannel codeElectromagnetic interference
The invention relates to a compact and dual-redundancy absolute-type coder. The coder comprises a bearing support and a rotation shaft, wherein the rotation shaft is arranged on the bearing support bya bearing, a magnet and an optical coded disc are arranged at one end, penetrating through the bearing support, of the rotation shaft, a circuit board is further arranged on the bearing support and is matched with the magnet and the optical coded disc, a magnetic sensor, a photoelectric sensor and a microprocessor are arranged on the circuit board, the magnetic sensor is matched with the magnet,the photoelectric sensor is matched with the optical coded disc, the microprocessor is used for processing a signal, the circuit board is arranged at an outer side of the optical coded disc by a stud,and a photoelectric emission device is further arranged on the bearing support at an inner side of the optical coded disc and is matched with the photoelectric sensor. In the coder, a mode combininga single-antipode magnet and a bicode-channel coded disc is employed, redundancy absolute-type output of the coder can be achieved, and the volume of the coder also can be reduced; and meanwhile, thecoder also has the advantages of impact and vibration resistance and magnetic interference resistance.
Owner:连云港杰瑞电子有限公司
Semantic switch
ActiveCN103957173AEliminate the flue modelRealize data sharingData switching networksRelational databaseMulti platform
The invention provides a semantic switch. Distributed type computing architecture based on REST non-state transmission is adopted, and the semantic switch works on a semantic layer above an application layer protocol. The semantic switch comprises a receiving end network / transmission layer data processing module, an application layer protocol analyzing module, a receiving end semantic preprocessing module, a semantic processing engine, a sending end semantic preprocessing module, an application layer protocol packaging module, a sending end network / transmission layer data processing module, a runtime database and a log audit module. The semantic processing engine comprises a semantic analyzing sub-module, a semantic firewall sub-module, a semantic processing sub-module, a semantic processing program, a load balancing sub-module and a configuration sub-module, and a body description and a relation description are defined in the configuration sub-module. A non-relation database cluster is adopted in the runtime database, and the semantic processing program is the program compiled by a user according to the client service logic. The semantic switch has the advantages that a flue model of a traditional information system is eliminated, and data sharing of a multi-platform heterogeneous system is achieved.
Owner:通明智云(北京)科技有限公司
Real-time clock synchronization circuit of battery management system and method thereof
ActiveCN104410400ANo need to consider hidden dangersMeet quality requirementsLogic circuitsCommunication interfaceElectrical battery
The invention discloses a real-time clock synchronization circuit of a battery management system and a method thereof. The real-time clock synchronization circuit comprises a battery management module, a main controller module and an external communication interface module, wherein the battery management module, the main controller module and the external communication interface module are connected in sequence through buses; the battery management module is used for carrying out unified control and management on multiple strings of batteries in a battery pack; the main controller module is used for controlling and managing an integral clock monitoring circuit; and the external communication interface module is used for providing an information interaction channel for carrying out time synchronization with external equipment. According to the real-time clock synchronization circuit of the battery management system, which is provided by the invention, additional arrangement of an onboard battery for power supply of a clock chip is not needed and the clock chip is arranged in a distributed manner, so that the accuracy for timing of the clock chip and the clock self-synchronizing alignment function are improved.
Owner:HUIZHOU EPOWER ELECTRONICS
Redundant braking system and vehicle
InactiveCN113665555AImplement redundant designLow costBraking action transmissionBrake safety systemsHydraulic cylinderElectric machinery
The invention discloses a redundant braking system and a vehicle, and relates to the technical field of vehicle engineering. The redundant braking system comprises a main voltage buildup module, a brake actuator, a main brake controller and a redundant brake controller. The main voltage buildup module comprises a driving motor and a hydraulic cylinder connected with the driving motor, and the driving motor is provided with a plurality of first winding coils; the brake actuator comprises an electromagnetic valve for opening and closing the hydraulic flow channel, and the electromagnetic valve comprises a plurality of second winding coils; the main brake controller is in control connection with the at least one first winding coil and the at least one second winding coil; and the redundant brake controller is in control connection with at least one other first winding coil and at least one other second winding coil, and the redundant brake controller and the main brake controller monitor each other. The redundant braking system has the advantages of being low in cost and high in integration degree on the premise that the braking redundancy safety is met.
Owner:CHINA FIRST AUTOMOBILE
Underwater emergency load rejection device
InactiveCN111137426AQuick dumpFloating fastUnderwater vesselsUnderwater equipmentMarine engineeringReliability engineering
The invention discloses an underwater emergency load rejection device. The underwater emergency load rejection device comprises a submersible, a rack is installed at the bottom of the middle standingface of the submersible, a releasing mechanism is installed in the middle of the rack, a heavy block box is installed at the rear portion of the rack, a driving assembly is installed at the front portion of the rack, and the heavy block box is released through the releasing mechanism under the power of the driving assembly. The underwater emergency load rejection device is compact and reasonable in structure and convenient to operate, the load rejection device is installed in a flat space, the emergency capacity is high, safety and reliability are achieved, operation is easy, remote load rejection and rapid floating of the submersible can be manually and rapidly achieved when a power source is lost in an emergency, and the safety of personnel and the submersible is guaranteed.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Parking control system and parking control method based on air brake parking system
ActiveCN111775935AImprove acquisitionImplement redundant designBraking action transmissionBrake safety systemsRelay valveCruise control
The invention provides a parking control system and a parking control method based on an air brake parking system, and belongs to the field of vehicle control. The system comprises an air brake parking system parking mechanism which comprises a parking brake valve and a relay valve; an air pressure sensor used for detecting an air pressure signal between an air outlet of the parking brake valve and a control port of the relay valve; an air brake parking system switch used for generating a parking state signal indicating whether to enter a parking state or not; an air brake parking system electric control unit used for generating a final parking state signal according to an air pressure signal measured by the air pressure sensor and a parking state signal generated by the air brake parkingsystem switch; a vehicle control unit connected with the air brake parking system electric control unit; and a self-adaptive cruise control system connected with the vehicle control unit so as to receive the final parking state signal through the vehicle control unit and control the operation of the vehicle according to the final parking state signal. According to the parking control system, redundant design of the parking brake state signals can be achieved.
Owner:ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +2
Vehicle light controller for urban rail vehicle
PendingCN107745728AImplement redundant designSynchronous controlSignalling indicators on vehicleSignal onEngineering
The invention relates to the technical field of vehicle lights, in particular to a vehicle light controller for an urban rail vehicle. The vehicle light controller for the urban rail vehicle comprisesa light controller I and a light controller II; light controller circuits are arranged on the light controller I and the light controller II; the light controller circuits comprise input ends, outputends and communication ends; the input ends are connected with braking signals, double flash signals, activating signals, lower beam modes, high beam modes, width modes, left steering signals, rightsteering signals, flashing light signals, daytime running light switching signals, fog light switching signals and light state detecting signals; the output ends are connected with braking lights, lower beams, high beams, width lights, left steering lights, right steering lights, vehicle width lights, fog lights, daytime running lights and tail lights; and the communication ends are connected withRS85 buses. The vehicle light controller for the urban rail vehicle has the advantages that complex logic simplifying effect on the vehicle light control is realized; the control synchronization of the vehicle lights at two ends is realized; redundancy designs of safety related key signals on software and hardware are all realized; and the reliability is improved.
Owner:CRRC QISHUYAN CO LTD
A sma grouped rolling rod type large load release mechanism
InactiveCN103231813BRealize reciprocating actionStrong impact resistanceCosmonautic component separationShape-memory alloyShock resistance
The invention provides a shape memory alloy (SMA) group rolling rod type large load releasing mechanism. A segmented nut of the mechanism is firmly hooped by a hooping cylinder through rolling rods, simultaneously the upper end face and the lower end face of the segmented nut are respectively matched with an end cover and a separating ejector block, so that the segmented nut is a total nut and cannot move vertically. Groove are arranged on the segmented nut, so that when separation is needed, and the hooping cylinder moves downwards to drive the rolling rods to roll downwards and properly enter the grooves of the segmented nut when moving to a certain position, so that the segmented nut can obtain radial displacement. When releasing is finished, the hooping cylinder moves upwards under the effect of an SMA reset spring and simultaneously push the rolling rods out from the grooves, and the segmented nut draws close toward the inside to form an integral thread, so that repeated using function of the mechanism can be achieved, the segmented nut is fit with the separating ejector block through a conical surface, and the separating ejector block is matched with the hooping cylinder through two end faces. The shape memory alloy (SMA) group rolling rod type large load releasing mechanism is strong in shock resistance, releases large load and has the redundancy design and high reliability.
Owner:BEIHANG UNIV +1
Structure and method for realizing dual-redundancy Flash
PendingCN113110862AAchieve redundancyImplement redundant designSoftware engineeringRedundant hardware error correctionControl cellEngineering
On one hand, the invention relates to a Flash structure for realizing dual redundancy, and the structure comprises a control unit, and the control unit is electrically connected with a selection module; the control unit controls the selection module to be connected with the substrate management controller and the main Flash or the standby Flash, or controls the selection module to be connected with the CPU and the main Flash or the standby Flash; and the control unit is electrically connected with the substrate management controller and the CPU. On the other hand, the invention relates to a method for realizing the dual-redundancy Flash. The method comprises the following steps of: automatically switching the main Flash and the standby Flash to be connected with the CPU in a BIOS loading process; when the BIOS cannot be loaded, the main Flash and the standby Flash are automatically switched to be connected with the substrate management controller in the Flash upgrading process through the substrate management controller. According to the method and the device, Flash upgrading can be carried out on the CPU or the baseboard management controller, when the two Flash cannot load the BIOS, the CPU cannot work, and remote upgrading can be carried out through the baseboard management controller, so that the BIOS is easier to maintain and higher in reliability.
Owner:SHANDONG YINGXIN COMP TECH CO LTD
Direct-current power supply system and method
PendingCN112751325AImplement redundant designFlexible AC transmissionDc network circuit arrangementsBusbarTransformer
The invention provides a direct-current power supply system and method. The system comprises a first power supply circuit and a second power supply circuit, wherein at least one of the first power supply circuit and the second power supply circuit comprises a phase-shifting transformer, the first power supply circuit comprises N first AC / DC conversion circuits, the second power supply circuit comprises N second AC / DC conversion circuits, N is an integer greater than or equal to 2, and the output sides of the N first AC / DC conversion circuits are connected in parallel with the output sides of the N second AC / DC conversion circuits through direct current busbars in a one-to-one correspondence manner to form N groups of redundant backup circuits. The direct-current power supply system can ensure redundant power supply of the load.
Owner:DELTA ELECTRONICS (SHANGHAI) CO LTD
High-reliability mining elevator hydraulic control system
ActiveCN105347216ASmooth brakingReduce brake shockWinding mechanismsFluid-pressure actuator componentsControl systemHigh pressure
The invention discloses a high-reliability mining elevator hydraulic control system. The system comprises a first motor, a variable pump, a high-pressure pipeline, a first safety valve, a second safety valve, a first oil tank, a first quantifying motor, a second quantifying motor, a rotating speed sensor, a low-pressure pipeline, a throttle valve, a second oil tank, an overflow valve, a quantifying pump, a second motor, a one-way valve, a proportional direction valve, a buffer brake cylinder, an emergent brake cylinder and an electromagnetic reversing valve. The system realizes stable brake and high-reliability control of a mining elevator, and effectively improves the safety and the reliability of the mining elevator.
Owner:秦皇岛迈博科技服务有限公司
Electrical control method for hybrid power rail car
ActiveCN113400955AImprove work efficiencyEnsure life, health and safetySpeed controllerCharging stationsElectric generatorElectric machine
The invention discloses an electrical control method for a hybrid power rail car. The electrical control method comprises a generator power supply mode, a power battery power supply mode and a hybrid power supply mode. In the hybrid power supply mode, the engine drives the generator to generate three-phase alternating current, and the three-phase alternating current is controllably rectified by the rectifier module to supply power to the intermediate direct current link. A power battery supplies power to the intermediate direct current link after being boosted by the chopping reactor, the first bridge arm and the supporting capacitor in sequence. After the electric energy output by the generator and the electric energy output by the power battery realize parallel power supply in the intermediate direct current link, one path supplies power to the traction motor through the traction inversion module, and the other path supplies power to the auxiliary load through the auxiliary inversion module. The technical problems that an existing electrical system adopts uncontrollable rectification, the size of intermediate direct-current voltage cannot be adjusted, a contact network and an engine unit cannot supply power at the same time, and power is insufficient due to the fact that the system cannot adapt to power reduction operation of an engine in a contact network-free environment and a plateau environment can be solved.
Owner:ZHUZHOU TIMES ELECTRONICS TECH CO LTD
A high-voltage DC circuit breaker valve tower structure
ActiveCN105958407BImprove seismic performanceReduced strength requirementsDevices for damping mechanical oscillationsDischarge by conduction/dissipationInter layerDc circuit breaker
Owner:XJ ELECTRIC +2
Intermediate frequency signal processor and intermediate frequency signal processing system
ActiveCN112865873AAvoid interferenceAvoid malfunctioningElectromagnetic transceiversSelection arrangementsIntermediate frequencyData transmission
The invention discloses an intermediate frequency signal processor and an intermediate frequency signal processing system. A station main control module and a station signal processing module which are located on the inner bottom surface of a case and are independent from each other, and a station power supply module, the station main control module and the station signal processing module are in data transmission connection through bridging devices; an air inlet A and an air inlet B are formed in a front panel of the case, and an air suction fan set A and an air suction fan set B are arranged on a rear panel of the case; the station power supply module and the station main control module are arranged on a path A from the air inlet A to the air suction fan set A. The station signal processing module is arranged on a path B from the air inlet B to the air suction fan set B. Wind baffles are arranged between the station main control module and the side wall of the case, between the station main control module and the station signal processing module, and between the station signal processing module and the side wall of the case; the station main control heat dissipation cold plate, the station signal processing heat dissipation cold plate and the station power supply heat dissipation cold plate are provided with air passing grooves extending in the length direction of the case.
Owner:SICHUAN SDRISING INFORMATION TECH
H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage
InactiveCN106230210AReduce lossLight in massMagnetic circuit rotating partsSynchronous machines with stationary armatures and rotating magnetsFlywheel energy storageTorque density
The present invention provides an H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage. Birotor structures are employed up and down and inside and outside, wherein the inner layer rotor and the outer layer are unilateral magnetism gathering structure, and the outer rotor is an outer side magnetism gathering structure to ensure that the magnetic field of the outer layer permanent magnet does not influence the inner layer iron core structure; and the inner rotor is an inner side magnetism gathering structure to ensure that the magnetic field of the inner layer permanent magnet does not influence the iron core structure, so that the inner (outer) layer iron core does not need to increase the thickness for the outer (inner) layer permanent magnet field. The loss of the iron core is reduced while the space is saved, and the system efficiency is improved. The space is saved through improving the utilization rate of the stator winding, and the torque density is greatly improved. The upper and lower layer structures can realize the hot backup of a motor structure and have the fault-tolerant ability.
Owner:HARBIN ENG UNIV
Clean energy remote real-time centralized monitoring system
PendingCN111162607AReach the reactive output targetImplement redundant designSingle network parallel feeding arrangementsSystems intergating technologiesControl layerMonitoring system
Owner:河北建研节能设备有限公司
Repeatable locking and separating device
ActiveCN110356593ARealize multiple lockingAchieve separationCosmonautic component separationEngineeringCam
The invention discloses a repeatable locking and separating device, and belongs to the technical field of repeatable connection and separation. The device comprises a support 61, a vertical shaft 62,a worm 63, a turbine 64, a cross shaft 65, cams 66, a sliding groove 67, a pin shaft 68, a locking hook 69, a first bearing, a second bearing and a third bearing; the vertical shaft 62 is fixedly connected with the worm 63, and the vertical shaft 62 is installed on the support 61 through the first bearing; the turbine 64 is fixedly connected with the cross shaft 65, and the cross shaft 65 is mounted on the support 61 through the second bearing; the worm 63 is in matched transmission with the turbine 64, the sliding groove 67 is mounted on the cross shaft 65 through the third bearing, each cam66 is mounted on each side of the sliding groove 67, the two cams 66 are fixedly connected with the cross shaft 65, and guide grooves are formed in the two cams 66 correspondingly; and a concave cavity and a kidney groove are formed in the sliding groove 67, the locking hook 69 is inserted into the concave cavity, the pin shaft 68 is arranged on the locking hook 69, and the two ends of the pin shaft 68 penetrate through the kidney groove and are inserted into the guide grooves of the two cams 66. The device has the advantages that the operation is simple, multiple locking and separating can berealized, the vibration impact is small, and the maintenance is easy.
Owner:BEIJING SATELLITE MFG FACTORY
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