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56results about How to "Prevent reverse charging" patented technology
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Solar automatic irrigation system for afforestation
InactiveCN1994056AProtection lifePrevent reverse chargingBatteries circuit arrangementsClimate change adaptationMicrocontrollerAutomatic control
The invention relates to a solar-energy green automatic irrigating system, which comprises solar energy battery plate, water pump, irrigating and micro irrigating system, rain collector, water feeder, fertilizer, water container, accumulator, charge controller, and automatic control system formed by single chip and sensor; the solar energy battery plate is connected to the accumulator via charge controller, to charge accumulator and control the over-charge or over-discharge of accumulator; the accumulator via automatic controller is connected to the water pump; the water inlet of water pump is connected to the water container, while water outlet is connected to the irrigating and micro irrigating system; the rain collector, water feeder, fertilizer are connected to the water container. The inventive system can save water.
Owner:DONGHUA UNIV
Device for preventing reverse charging of secondary side of voltage transformer
InactiveCN104112629ASolve the problem of reverse charging phenomenonReasonable structureTransformersSwitch operated by falling voltagePower gridThree-phase
The invention relates to voltage transformer protection technology, specifically to a device for preventing reverse charging of a secondary side of a voltage transformer, and solves the problem that existing voltage transformer protection technology cannot completely prevent a reverse charging phenomenon from occurring in a voltage transformer. The device for preventing reverse charging of the secondary side of the voltage transformer includes a three-phase air switch, a first spring, a lock rod, a support, a lever, a top rod, a bimetallic strip, an electric heating element, a reverse charging release, an overcurrent release, an undervoltage release, and a second spring; a right end of the first spring is fixed to a first phase moving contact of the three-phase air switch; a left part side face of the lock rod is fixed to the first phase moving contact, a second phase moving contact and a third phase moving contact of the three-phase air switch; a right end of the lock rod is provided with a first hook-shaped part; a left end of the lever is provided with a second hook-shaped part which are in a clasp joint with the first hook-shaped part; and a right end of the lever is hinged to the support. The device for preventing reverse charging of the secondary side of the voltage transformer in the invention is suitable for a power grid.
Owner:STATE GRID CORP OF CHINA +1
Optimal modulation method and optimal modulation system for non-isolated alternating-current bypass single-phase grid-connected inverter
ActiveCN105978020AEnhanced inhibitory effectAvoid Zero Crossing DistortionAc-dc conversionSingle network parallel feeding arrangementsGrid connected inverterPower grid
The invention provides an optimal modulation method and an optimal modulation system for a non-isolated alternating-current bypass single-phase grid-connected inverter. The method comprises the following steps: acquiring the phase angle Omega(t) of the voltage of a power grid; acquiring the phase angle Omega(t)+Beta of the output voltage of an inverter; and judging an interval, needing insertion of a dead zone, of the output voltage of the inverter according to the power factor angle Alpha and the phase angle difference Beta between the output voltage of the inverter relative and the voltage of the power grid, and inserting a dead zone between a bypass freewheeling switch and a main switch in an interval in which the output power of the inverter is negative. By using the optimal modulation method for a non-isolated alternating-current bypass single-phase grid-connected inverter provided by the invention, the problem of zero-crossing distortion caused by ignorance of inductance voltage and the problem of reverse charging caused by insertion of a dead zone for the existing modulation method are solved.
Owner:CENT SOUTH UNIV
Protective circuit of vehicle-mounted charger
ActiveCN103199503AEasy to useExtend your lifeArrangements responsive to excess currentShort circuit protectionEngineering
The invention provides a protective circuit of a vehicle-mounted charger. The protective circuit of the vehicle-mounted charger comprises an operational amplifier chip U1, a diode D1, a diode D2, a metal oxide semiconductor (MOS) pipe Q1, a capacitor C1, a capacitor C2, a relay RL1 and a plurality of resistors. According to the protective circuit of the vehicle-mounted charger, a hysteresis comparator is composed of the operational amplifier chip U1 and the resistors, anti-back-charging protection and short-circuit protection are achieved through the hysteresis comparator and the relay, a battery-polarity-reverse protective function is achieved through the resistors and the diodes, therefore short-circuit protection, reverse-polarity protection, battery-back-charging prevention on the vehicle-mounted charger are simultaneously achieved, the system performance of the vehicle-mounted charger is greatly improved, and the service life of the vehicle-mounted charger is greatly prolonged.
Owner:CHERY AUTOMOBILE CO LTD
DC uninterrupted power supply system and power supply method
PendingCN108173266AGuaranteed continuityGuaranteed reliabilityAc network circuit arrangementsEmergency power supply arrangementsElectricityUninterruptible power supply
The invention discloses a DC uninterrupted power supply system and a power supply method. The power supply system comprises a battery pack, a charger and at least one power supply device, wherein thecharger is connected between an output end of the power supply device and an input end of the battery pack in series; the output end of the power supply device is connected with an external output end; a first switch and a first thermistor are connected between the output end of the battery pack and the external output end in series; and the power supply method of using the power supply system comprises the following steps of (1) outputting DC through the external output end by adopting at least one external power supply mode; and (2) when detecting an instantaneous power failure of external power supply input, turning on the first switch within first time, and then turning on a second switch after second time and carrying out uninterrupted power supply through the battery pack. Through the DC uninterrupted power supply system and multiple power supply strategies disclosed by the invention, the reliability of DC power supply can be effectively improved and the power supply quality is effectively ensured.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1
Battery discharging control circuit
InactiveCN107528368AAchieve safe dischargeSwitch back and forthElectric powerSafety/protection circuitsInput controlEngineering
A discharge control circuit for a battery pack, comprising: a pre-discharge unit, a discharge unit, a start unit and a control unit, the input end of the pre-discharge unit is connected to the total positive end of the battery pack, the output end is connected to an external load, the input control end is connected to the control The first output control terminal of the unit is connected; the input terminal of the discharge unit is connected to the total positive terminal of the battery pack, the input control terminal is connected to the output control terminal of the starting unit, and the output terminal is connected to an external load; the first input control terminal of the starting unit It is connected with the output terminal of the discharge unit, and the second input control terminal is connected with the second output control terminal of the control unit. The control unit of the present invention controls the power MOS tube to disconnect and start the pre-discharge unit and the discharge unit, starts the pre-discharge unit to work at the moment of discharge, uses the power resistance of the pre-discharge unit to absorb the peak current, and then disconnects the pre-discharge unit to start the discharge unit , to realize the safe discharge of the battery pack to the external load.
Owner:HUIZHOU BNET TECH CO LTD
Safe primary lithium cell
ActiveCN1805194APrevent reverse chargingPrevent hidden dangers caused by short circuitsPrimary cell maintainance/servicingNon-aqueous electrolyte cellsChlorosulfuric acidManganese
The invention relates to a battery which can improve the safety and electric property. Said inventive safe battery is connected to a electric circuit protective board with detecting and controlling functions to make the one-time lithium battery own the functions as avoiding short circuit, instant current increase, and over-discharge without reducing the output voltage, and in special condition, the invention can supply bypass function. The invention has simple design, small size and variable position and shape of said electric circuit protective board. The invention can be used in one-time lithium battery as lithium / thionyl chloride (Li / SOCl2), lithium / chlorosulfuric acid (Li / SO2Cl2), lithium / sulfur dioxide (Li / SO2), and lithium / manganese bioxide (Li / MnO2).
Owner:EVE ENERGY CO LTD
Driving circuit of switch unit of reverse-connection preventing protection circuit for solar charge controller
InactiveCN102545164ASimple structureAvoid chargingBatteries circuit arrangementsEmergency protective circuit arrangementsReverse connectionSolar battery
The invention discloses a driving circuit of a switch unit of a reverse-connection preventing protection circuit for a solar charge controller. The driving circuit is provided with a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a diode D7, a negative-positive-negative (NPN) type triode Q6, a positive-negative-positive (PNP) type triode Q7, an NPN type triode Q8, an NPN type triode Q9 and a PNP type triode Q10. The driving circuit of the switch unit of the reverse-connection preventing protection circuit for the solar charge controller can output a driving signal through a signal output terminal DRV2; when a storage battery is connected reversely, the storage battery is prevented from being charged reversely during charge of the storage battery; and when the storage battery is not charged at night, the storage battery can be prevented from being discharged to a solar battery. The driving circuit has the advantages of simple structure and accurate detection.
Owner:EAST GRP CO LTD
Gas pipeline system of reaction chamber and control method of gas pipeline system
ActiveCN102568991AReduce air pressurePrevent reverse chargingElectric discharge tubesExhaust gasRoughing pump
The invention provides a gas pipeline system of a reaction chamber and a control method of the gas pipeline system. The gas pipeline system comprises a roughing pump connected with a reaction chamber by a butterfly damper for exhausting gas in the reaction chamber; a turbine aerating pump connected with the reaction chamber for aerating the reaction chamber, wherein a gas cooling unit of the turbine aerating pump is communicated with the roughing pump; and a valve control unit for comparing the gas pressure in the gas cooling unit with gas pressure in the reaction chamber and closing a butterfly valve when the gas pressure in the gas cooling unit is more than that of the reaction chamber. In the invention, the roughing pump always exhausts gas in the gas cooling unit when working, can reduce gas pressure in the gas cooling unit and enable the gas pressure to keep balance with the gas pressure of the reaction chamber; the valve control unit compares the gas pressures, controls opening or closing of the butterfly valve, thereby effectively preventing the cooling gas from being reversely filled to the reaction chamber.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
Hybrid power system
PendingCN109861341AAchieving Power HybridReduce weightBatteries circuit arrangementsElectric powerFuel cellsDirect current
The invention discloses a hybrid power system which comprises a fuel cell, a storage battery, a fuel cell one-way conduction module, a storage battery one-way conduction module and a one-way direct current voltage reduction module. The output end of the fuel cell is connected to a load by the fuel cell one-way conduction module; the storage battery is connected to the load by the storage battery one-way conduction module; the input end of the one-way direct current voltage reduction module is connected with the input end or the output end of the fuel cell one-way conduction module; and the output end of the one-way direct current voltage reduction module is connected with the storage battery, wherein a relationship among an input starting voltage U1, an input shutdown voltage U2 and an output voltage U3 of the one-way direct current voltage reduction module is that: U1 is greater than or equal to U2 and U2 is greater than U3. In the hybrid power system disclosed by the invention, the one-way direct current voltage reduction module is adopted between the fuel cell and the storage battery, and the one-way direct current voltage reduction module only converts and transmit a small quantity of output power of the fuel cell to the storage battery, thereby reducing a specification, a weight, cost and power consumption of the one-way direct current voltage reduction module.
Owner:卢丽芬
Control device and method for electric car driving and braking system
ActiveCN107117040AReduced energy outputPrevent reverse chargingSpeed controllerElectrodynamic brake systemsThree-phase electric powerCapacitance
The invention discloses a control device and method for an electric car driving and braking system. The device comprises a motor controller, a three-phase motor, a diode, a rectifying circuit, a super capacitor, a power battery, a thyristor triggering circuit, an inductor and a relay. In driving, when the terminal voltage of the super capacitor is higher than the voltage between an audion base electrode and a collector electrode, the relay is switched on, and the super capacitor and the power battery together drive the motor to rotate; when the terminal voltage of the super capacitor is lower than the voltage between the audion base electrode and the collector electrode, the relay is switched off, and at this moment, only the power battery conducts separate drive; and in braking, three-phase power of the motor passes through the inductor and directly charges the super capacitor through the rectifying circuit which is composed of a thyristor and the diode. In driving, the device can reduce energy output of the power battery and prevent discharge of the super capacitor when the voltage is low, and in braking, by adoption of the rectifying circuit with the thyristor, consumption of recovered energy can be reduced.
Owner:JIANGSU UNIV
Storage battery pack connection circuit and intelligent storage battery pack
ActiveCN102969754AChange the rated voltageNormal storage statusBatteries circuit arrangementsElectric powerFloating chargeElectrical battery
The invention discloses a storage battery pack connection circuit and an intelligent storage battery pack. The storage battery pack connection circuit comprises a plurality of battery units, wherein one pole of each battery unit is electrically connected with one output end of a voltage reduction and stabilizing circuit through a first switch, the other pole of each battery unit is electrically connected with the other output end of the voltage reduction and stabilizing circuit through a second switch, and the input end of the voltage reduction and stabilizing circuit is electrically connected with a charging input circuit. Further, controllable switches are adopted for at least the first switches and the second switches and are controlled by a first control unit. One pole of each battery unit is electrically connected with one output end of the voltage reduction and stabilizing circuit through a third switch and the first switch which are connected in series. The intelligent storage battery pack comprises the storage battery pack connection circuit. According to the storage battery pack connection circuit and the intelligent storage battery pack, the rated charging voltage of the storage battery pack can be changed, reverse charging of the storage battery pack for a charging device is avoided, and the storage battery pack can work in the floating charge state.
Owner:江苏赣锋动力科技有限公司
Secondary side parallel LCD forward converter capable of avoiding reverse charging of energy storage capacitor
ActiveCN111682777AImprove efficiencyImprove job stabilityEfficient power electronics conversionDc-dc conversionCapacitanceHemt circuits
The invention discloses a secondary side parallel LCD forward converter capable of avoiding the reverse charging of an energy storage capacitor. The forward converter comprises a forward converter main circuit and an energy transfer and transmission circuit; the forward converter main circuit comprises a high-frequency transformer T, a switching tube S, a diode D1, a diode D2, an inductor L1 and acapacitor C1, and the energy transfer and transmission circuit comprises a diode D3, a capacitor C2, an inductor L2 and a diode D4. The forward converter is simple in circuit structure and high in reliability, the diode D4 ensures that C2 cannot be reversely charged, reactive power loss of the converter is reduced, the reverse recovery problem of the D4 can be eliminated, diode loss is reduced, excitation energy can be transferred to a load side, forward excitation energy can be transmitted, energy transmission efficiency is improved, and the circuit is suitable for high-power transmission.
Owner:XIAN UNIV OF SCI & TECH
Connection device of automobile starting power supply
InactiveCN105811202APrevent short circuit leakageSimple structureCoupling device detailsElectric connection basesShort circuit
The invention relates to a connection device of an automobile starting power supply. The connection device comprises a power supply auxiliary adapter and a copper post, wherein the copper post is electrically connected with a positive pin and a negative pin of the automobile starting power supply separately, one end of a power supply assistant device is connected with a sleeve ring by a connection line, the sleeve ring detachably and fixedly sleeves the corresponding copper post, the other end of the power supply assistant device is connected with a vehicle charging head by the connection line, the vehicle charging head is used for connecting a power supply interface of an automobile storage battery, a protection sleeve sleeves the outer surface of the copper post and comprises a base and a sleeve head, the base is used for being fixed at the lower end of the copper post, and the sleeve head detachably sleeves the base. The connection device is simple in structure and is convenient to use, the problem of unfavorable contact between the connection line and a pneumatic power supply can be effectively solved, and the phenomena of short circuit and electric leakage of the automobile starting power supply also can be effectively prevented.
Owner:FUTUREPATH TECH
A 12v car emergency starter power supply
ActiveCN104979857BPrevent reverse chargingEnsure safetyBatteries circuit arrangementsEmergency protective circuit arrangementsElectrical resistance and conductanceLithium
The invention discloses a 12V automobile emergency starting power supply, which comprises a battery pack module; a load end; and an open circuit protection module, which includes a first-stage open circuit protector and a second-stage open circuit protector connected in series between the battery pack module and the load end The protector, the first stage circuit breaker includes a relay, the second stage circuit breaker includes a plurality of parallel thermistors, the circuit breaker protection module also includes a plurality of heating resistors arranged adjacent to each thermistor, and the plurality of heating resistors phase-parallel connection; the control device is used to control the relay and to control multiple heating resistors. Implementing the technical solution of the present invention can solve the technical problem that the ternary lithium battery cannot be used to make a 12V automobile emergency starting power supply in the prior art; implementing the technical solution of the present invention can realize preventing the reverse charging of the ternary lithium battery, overcurrent discharge and The battery is overheated to ensure the safety of the system.
Owner:湖州优研知识产权服务有限公司
Dynamic parallel operation circuit and method for low-voltage household energy storage system
PendingCN112838648APrevent reverse chargingElectric powerVehicular energy storageElectrical batterySimulation
A dynamic parallel operation circuit and method for a low-voltage household energy storage system are provided. The circuit comprises two battery pack current sampling modules and an inverter, the battery pack current sampling module comprises a battery module and a current sampling unit, one side of a positive electrode of the battery module is connected with the current sampling unit in series, the battery module comprises a battery, a discharging MOS and a charging MOS. The discharging MOS and the charging MOS are connected in series to a circuit, two battery pack current sampling modules are connected in parallel, the two ends of the parallel connection position of the battery pack current sampling modules are respectively provided with current nodes, the current nodes comprise a battery pack total positive node and a battery pack total negative node. The battery pack total positive node and the battery pack total negative node are connected with the inverter in series, the current sampling unit monitors the current condition in real time, and through cooperation of the discharging MOS and the charging MOS, parallel operation under the dynamic condition is completed, and meanwhile the problem of large-current circulation is solved.
Owner:杭州惟领科技有限公司
Power supply automatic switching circuit with battery undervoltage shutdown
PendingCN108767974APrevent reverse chargingReduce lossElectric powerBattery disconnect circuitsElectricityLow voltage
The invention belongs to the technical field of electronics, and relates to a power supply automatic switching circuit with battery undervoltage shutdown. The power supply automatic switching circuitis characterized by comprising an external power supply input end, an external power detection output control circuit, a power supply input interface, a battery low voltage detection output control circuit, a battery power supply on / off control circuit, and a load output end, wherein the external power supply input end is electrically connected with the external power detection output control circuit, the external power supply input end passes a Schottky diode D1 and then is connected with a load output, a battery power supply input end is electrically connected with the battery power supply on / off control circuit and the battery low voltage detection output control circuit separately, the low voltage detection output control circuit and the external power detection output control circuitare electrically connected with the battery power supply on / off control circuit separately, and the battery power supply on / off control circuit is connected to the load output end. The power supply automatic switching circuit improves the use ratio of battery energy, lowers battery loss, and prolongs the service life of batteries. The circuit has a simple structure and has low manufacture cost.
Owner:厦门市政智慧城市科技有限公司
Mining nickel-metal hydride battery system
InactiveCN102931692APrevent overchargeEasy to useBatteries circuit arrangementsElectric powerMicrocontrollerElectrical battery
The invention discloses a mining nickel-metal hydride battery system, wherein a battery system (2) in an explosionproof box is formed by connecting a plurality of single energy storage batteries in series, a charging circuit (3) and a discharging circuit (4) are respectively arranged at two sides of the battery system (2), a charging power supply (1) is connected with the charging end of the battery system (2) through the charging circuit (3), the discharging end of the battery system (2) is connected with a load (5) through the discharging circuit (4), a battery management system (17) is provided with a singlechip microcomputer (6), a charging detection device (8) is connected to the signal input end I of the singlechip microcomputer (6), a charging control switch (7) is connected to the charging circuit (3), the control end I on the singlechip microcomputer (6) is connected with the charging control switch (7), a discharging monitoring device (9) is connected to the signal input end II of the singlechip microcomputer (6), the discharging monitoring device (9) is arranged on the discharging circuit (4), a discharging control switch (10) is arranged on the discharging circuit (4), the control end II of the singlechip microcomputer (6) is connected with the discharging control switch (10), and the output end of the singlechip microcomputer (6) is provided with an alarm device (11) and a display device (12).
Owner:BAILE ELECTROTHERMIC ELECTRIC APPLIANCE JIANGSU
12V jump starter using ternary lithium battery
InactiveCN104979856APrevent reverse chargingEnsure safetyBatteries circuit arrangementsEmergency protective circuit arrangementsSystem safetyElectrical battery
The present invention discloses a 12V jump starter using a ternary lithium battery. The 12V jump starter using the ternary lithium battery comprises a battery pack module used for outputting a DC externally and comprising three lithium battery packs which are connected in series mutually, wherein each lithium battery pack comprises one or a plurality of ternary lithium batteries which are connected in parallel mutually; and a load end which is in series connection with the battery pack module and is used to receive the voltage of the battery pack module and output externally. The 12V jump starter using the ternary lithium battery is characterized by also comprising a relay which is in series connection between the battery pack module and the load end; a control device used for controlling the relay. By implementing the technical scheme of the present invention, the technical problem in the prior art that the 12V jump starter can not be manufactured by the ternary lithium battery can be solved, the reverse charging, the overcurrent discharging and the battery overheating of the ternary lithium battery can be prevented, and the system safety is guaranteed.
Owner:SUZHOU NEW EASY ELECTRONICS
Full-bridge converter with freewheeling path
ActiveCN108667301AAvoid voltage spikesReduce volumeEfficient power electronics conversionDc-dc conversionEnergy transferFull bridge
The invention discloses a full-bridge converter with a freewheeling path. The full-bridge converter comprises a full-bridge bridge arm 1, a DC blocking capacitor 2, an energy transfer transformer 3, an energy main output path 4 and an energy freewheeling path 5. The full-bridge bridge arm is composed of four power switching devices. The DC blocking capacitor 2 and the primary winding of the energytransfer transformer 3 are connected in series and connected with the center of the leading arm and the lagging arm of the full-bridge bridge arm respectively. The energy main output path 4 is composed of a main secondary winding of the transformer 3, four rectifier diodes and a main filtering inductor. The energy freewheeling path 5 is composed of an auxiliary secondary winding of the transformer 3, four rectifier diodes, a pi-type filter, a resonant capacitor and a freewheeling clamping diode. The energy main output path 4 and the energy freewheeling path 5 are connected in parallel. According to the full-bridge converter with freewheeling path, the defects of large voltage stress, loss of duty ratio, large circulation loss and the like of a rectifier diode existing in a traditional full-bridge converter are overcome; and the wide range of the output voltage from zero to the maximum gain can be realized.
Owner:HUNAN INSTITUTE OF ENGINEERING
Charging control and protection device of gas turbine
ActiveCN103701184AImprove the success rate of startingPrevent reverse chargingBatteries circuit arrangementsElectric powerCharge controlEngineering
The invention discloses a charging control and protection device of a gas turbine. The device comprises a differential protector and an excitation adjuster, wherein the differential protector is provided with a first input port, a first output port and a judging control unit, the first input port is connected with a power input terminal of a power generator of the gas turbine, the first output port is connected with a power storage unit, the judging control unit is arranged between the first input port and the first output port, the judging control unit is used for controlling the engaging and disengaging of the first input port and the first output port according to the comparison result of the output voltage of the power generator and the residual voltage of the power storage unit, and the excitation adjuster is used for connecting a power output terminal of the power generator and an excitation coil of the power generator so as to control the output voltage of the power generator to supply power for the excitation coil of the power generator. The device has the advantage that the power storage unit is charged by the self power generator of the gas turbine, the consumed power of the power storage unit can be timely supplemented, and the charging circuit is timely cut off, so the reverse charging of the power generator by the power storage unit is avoided, the power generator is protected, and the over-charging of the power storage unit is prevented.
Owner:CHINA HANGFA SOUTH IND CO LTD
Power isolation circuit and intelligent door lock system
PendingCN110768518AEnsure safetyPrevent reverse chargingNon-mechanical controlsElectronic switchingHemt circuitsControl theory
The embodiment of the invention provides a power isolation circuit and an intelligent door lock system, and relates to the field of electronic equipment. The power isolation circuit comprises an MOS transistor switch circuit and a control circuit. A first end of the MOS transistor switch circuit is used for being electrically connected with a first power supply, and a second end of the MOS transistor switch circuit is used for being connected with a second power supply and equipment to be powered; the control circuit is used for being electrically connected with the second power supply; and the control circuit is electrically connected with the MOS transistor switch circuit, and is used for controlling on or off of the MOS transistor switch circuit according to the output voltage of the second power supply to isolate the first power supply when the second power supply supplies power to the equipment to be powered. According to the invention, the first power supply can be effectively isolated when the equipment to be powered is switched to the second power supply, thereby preventing reverse charging between the first power supply and the second power supply, and improving the powersupply safety of the equipment to be powered.
Owner:SHENZHEN OURUIBO ELECTRONICS
Ternary lithium battery vehicle emergency starting power source
ActiveCN104253453APrevent reverse chargingEnsure safetyBatteries circuit arrangementsElectric powerSelf recoveryEngineering
The invention provides a ternary lithium battery vehicle emergency starting power source. The objective of the invention is to solve the technical problem of incapability of utilizing ternary lithium batteries to make a vehicle emergency starting power source in the prior art. The ternary lithium battery vehicle emergency starting power source includes a three-ternary lithium battery pack module, a four-ternary lithium battery pack module, a load end connector, a unidirectional self-recovery fuse module which comprises a plurality of parallel-connected unidirectional self-recovery fuses each of which includes a diode and a PTC thermistor which are in series connection, a constant current and constant voltage module which is connected with the four-ternary lithium battery pack module, a discharging relay and a discharging management module, wherein the discharging management module includes a single-chip microcomputer and a discharging switch, the discharging management module is connected with and controls the constant current and constant voltage module and the discharging relay, and the PTC thermistor thermally contacts with the diode. With the ternary lithium battery vehicle emergency starting power source of the technical scheme of the invention adopted, technical problems of high-voltage reverse charging, overcurrent discharging and overheating of ternary lithium batteries can be solved.
Owner:中科新世纪能源科技有限公司
Bridge opening safety door
InactiveCN106121470APut an end to deathWill not hinder normal trafficBatteries circuit arrangementsShutters/ movable grillesElectricityPreventing injury
The invention relates to safe equipment, in particular to a bridge opening safety door. The bridge opening safety door comprises an electric rolling door; the electric rolling door is installed on the outer wall of abridge opening; a water level sensor is installed on the top inside the bridge opening; the water level sensor is electrically connected with a controller which is electrically connected with a relay A and a relay B, wherein a coil of the relay A is in forward connection with a tubular motor; a coil of the relay B is in reverse connection with the tubular motor; the relay A and the relay B are both electrically connected with a storage battery; the outer wall of the bridge opening is provided with a solar-cell panel; and the solar-cell panel is electrically connected with the storage battery through a solar charge controller. The bridge opening safety door completely eradicates deaths caused by waterlogging in the bridge opening, makes people who rely on luck have no chances to try, completely prevents injuries and deaths caused by waterlogging from happening again, and is suitable for nation-wide general promotion.
Owner:司夏
Storage battery pack connection circuit and intelligent storage battery pack
ActiveCN102969754BChange the rated voltageNormal storage statusBatteries circuit arrangementsElectric powerFloating chargeElectrical battery
The invention discloses a storage battery pack connection circuit and an intelligent storage battery pack. The storage battery pack connection circuit comprises a plurality of battery units, wherein one pole of each battery unit is electrically connected with one output end of a voltage reduction and stabilizing circuit through a first switch, the other pole of each battery unit is electrically connected with the other output end of the voltage reduction and stabilizing circuit through a second switch, and the input end of the voltage reduction and stabilizing circuit is electrically connected with a charging input circuit. Further, controllable switches are adopted for at least the first switches and the second switches and are controlled by a first control unit. One pole of each battery unit is electrically connected with one output end of the voltage reduction and stabilizing circuit through a third switch and the first switch which are connected in series. The intelligent storage battery pack comprises the storage battery pack connection circuit. According to the storage battery pack connection circuit and the intelligent storage battery pack, the rated charging voltage of the storage battery pack can be changed, reverse charging of the storage battery pack for a charging device is avoided, and the storage battery pack can work in the floating charge state.
Owner:江苏赣锋动力科技有限公司
A ternary lithium battery car emergency start power supply
ActiveCN104253453BPrevent reverse chargingEnsure safetyBatteries circuit arrangementsElectric powerElectrical batterySelf recovery
Owner:中科新世纪能源科技有限公司
Guardrail capable of generating power and power generation system thereof
ActiveCN110566411AReduce wasteImprove protectionWind energy with electric storageCattle guardsWind drivenElectricity
The invention discloses a guardrail capable of generating power and a power generation system thereof. The guardrail comprises a guardrail main body, wherein a wind driven generator is arranged on theguardrail main body. The power generation system comprises the wind driven generator arranged on the guardrail main body, wherein the wind driven generator is electrically connected with a charge-and-discharge controller through a rectifier; the charge-and-discharge controller is electrically connected with a storage battery and a direct-current load; the charge-and-discharge controller is electrically connected with an alternating-current load through an inverter; the alternating-current load is electrically connected with an auxiliary power supply; and the charge-and-discharge controller iselectrically connected with a solar photocell square matrix through an anti-backcharging blocking diode. According to the guardrail and the power generation system, the wind generated by the vehiclespeed can be used for generating power, so that the waste of energy is greatly reduced, and the environmental friendliness is facilitated; and meanwhile, the storage battery can be charged, and the power can be supplied not only for the direct-current load but also for the alternating-current load.
Owner:杨鸿苍
Mobile phone charging pile based on bus stop board and implementation method thereof
InactiveCN108879865ASolve the real problemSolve charging problemsBatteries circuit arrangementsElectric powerVoltage converterMobile phone
The invention discloses a mobile phone charging pile based on bus stop board and an implementation method thereof. The mobile phone charging pile comprises a bus stop board frame with hollow structure, a mobile phone charging device, a battery, a solar panel, a voltage converter, a controller and a raindrop sensor. The solar panel is arrange on the top of the bus stop board frame; the controller is arranged in the bus stop board frame; the battery and the voltage converter are respectively arranged on the lower ends of both sides of the bus stop board frame; the battery is connected to the solar panel through the controller; the mobile phone charging devices are respectively arranged on both sides of the bus stop board frame and connected to the battery through the voltage converter; the mobile phone charging device comprises mobile phone charging ports; an opening for exposing the mobile phone charging ports are respectively arranged on both sides of the bus stop board frame; a coveris arranged on the opening; the raindrop sensor is arranged on an outer wall of the bus stop board frame adjacent to the opening and connected to the controller. The mobile phone charging pile based on bus stop board has simple structure and solves the problem of people waiting for a car or charging mobile phone outdoor.
Owner:CHENGDU UNIV OF INFORMATION TECH
bridge safety gate
InactiveCN106121470BPrevent overchargingPrevent reverse chargingBatteries circuit arrangementsShutters/ movable grillesElectricityPreventing injury
The invention relates to safe equipment, in particular to a bridge opening safety door. The bridge opening safety door comprises an electric rolling door; the electric rolling door is installed on the outer wall of abridge opening; a water level sensor is installed on the top inside the bridge opening; the water level sensor is electrically connected with a controller which is electrically connected with a relay A and a relay B, wherein a coil of the relay A is in forward connection with a tubular motor; a coil of the relay B is in reverse connection with the tubular motor; the relay A and the relay B are both electrically connected with a storage battery; the outer wall of the bridge opening is provided with a solar-cell panel; and the solar-cell panel is electrically connected with the storage battery through a solar charge controller. The bridge opening safety door completely eradicates deaths caused by waterlogging in the bridge opening, makes people who rely on luck have no chances to try, completely prevents injuries and deaths caused by waterlogging from happening again, and is suitable for nation-wide general promotion.
Owner:司夏
Battery charger, battery pack disconnection fault detection circuit
ActiveCN109599914BPrevent reverse chargingElectric powerReverse polarity correctionRechargeable cellCharge control
The invention provides a battery charger and battery pack disconnection fault detection circuit, which solves the technical problem that the existing power supply system cannot perform fault detection on the connecting wire and the battery; it includes a charger, a charger fault detection circuit unit, an isolation diode , a pulse charging control circuit unit, a battery fault detection circuit unit and a rechargeable battery; the charger is sequentially connected to the rechargeable battery through an isolation diode, a pulse charging control unit, the charger fault detection circuit unit is connected to the charger, and the battery fault detection circuit unit It is connected to the rechargeable battery; the charger fault detection circuit unit is used to detect whether the output voltage of the charger is normal; the pulse charging control circuit unit is used to provide the rechargeable battery with pulse charging voltage and current, and when the rechargeable battery is disconnected, the The rechargeable battery voltage is sampled during the cut-off window for pulse charging. The present invention is widely used in power supply systems.
Owner:威海凯瑞电气股份有限公司
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