50 results about "Trickle charging" patented technology

The invention relates to the technical field of computer NAND chip storage, in particular to an NAND Flash data storage system and method, and the system comprises a cloud inventory management platform; the wireless storage device is provided with a plurality of storage positions for storing hard disks, and a wireless charging module is arranged in each storage position; the energy receiving modules are arranged in the storage hard disks; according to the technical scheme provided by the invention, a cloud-controlled penetration type wireless trickle charging technology is adopted, and on the premise of keeping sealed packaging of the equipment and unattended warehouse, automatic and periodic data refreshing of large-batch and multi-form NAND Flash storage equipment is realized, so that the problem of data retention failure caused by long-term inventory is fundamentally solved, and the service life of the NAND Flash storage equipment is prolonged. Meanwhile, the management cost, the operation risk and the complexity are greatly reduced, and the reliability and the management efficiency of inventory products are remarkably improved.

The utility model belongs to the field of portable electronic equipment, and relates to a battery low-electric-trickle charging system improvement circuit which comprises an MCU, a charging circuit, a voltage division circuit and a battery power supply circuit. The input end of the charging circuit is connected with the charger, and the output end is connected with the MCU; the input end of the battery power supply circuit is connected with a BAT + port of the battery, and the output end of the battery power supply circuit is connected with the MCU; the voltage division circuit is connected between the charger and the battery power supply circuit; the voltage division circuit can control on and off of the battery power supply circuit; the system has remarkable advantages in the aspects of independent charging and power supply, seamless power supply switching, reduction of product cost, improvement of charging flexibility, improvement of charging efficiency, simplification of structure installation and maintenance, improvement of safety and reliability and the like. The advantages ensure that trickle charging can be effectively carried out under the condition that the battery voltage is extremely low, and normal starting and working of the MCU are ensured, so that the stability of the system and the user experience are remarkably improved.

This invention relates to an optimized charging method for rural power grid energy storage batteries based on their State of Charge (SOC), belonging to the field of battery optimization. Before charging the rural power grid energy storage batteries, the SOC estimation result of the battery is detected, and a suitable charging scheme is selected according to different battery states. The charging scheme includes: when SOC ≤ 10%, constant current charging is performed based on the acceptable initial current rate of the battery; when 10% < SOC ≤ 75%, a constant charging current is maintained, and a negative pulse charging method is used, specifically: charging is stopped before the negative pulse, discharging occurs during the negative pulse, and charging is stopped after the negative pulse; when 75% < SOC ≤ 90%, a MAS-pulse charging method is used; when SOC > 90%, a constant voltage trickle charging method with adaptive current adjustment is used. This method ensures charging efficiency, improves safety, extends battery life, and reduces costs.

(Main claim): Charging plug damping ring for an airbox of an emergency vehicle with external power supply, characterized in that the charging plug damping ring is ring-shaped, that it can be fitted onto a standard Schuko plug, that it is made of an elastic, chemically resistant and saltwater-resistant material, and that its elasticity is designed to absorb impact energies generated during the automatic ejection of the plug and prevent damage to the vehicle or adjacent objects.

This invention provides a negative electrode for zinc secondary batteries that can extend battery life by delaying the decrease in battery capacity during trickle charging. [Solution] A negative electrode used in a zinc secondary battery, comprising ZnO particles and metallic Zn particles in an amount of 55.0 to 65.0 parts by weight per 100 parts by weight of ZnO particles.

This disclosure relates to a battery pre-power supply circuit, control method, and intelligent electrical appliance. The battery pre-power supply circuit includes a battery power supply, a pre-power supply output module including a pre-charging circuit, a boost converter circuit, and a primary capacitor. Both the pre-charging circuit and the boost converter circuit are connected to the battery power supply, and both are connected to the primary capacitor. The DC power supply output module includes a trickle charging circuit, a charging switch, and a secondary capacitor. Both the trickle charging circuit and the charging switch are connected to the primary capacitor, and both are connected to the secondary capacitor. A control module has its power supply terminal connected to the primary capacitor, and its input terminal connected to the boost converter circuit to obtain the battery power supply voltage. The control module is also connected to the charging switch to control its on / off state. This disclosure avoids inrush current, ensures that the battery can supply power normally even in a low-charge state, improves battery power utilization, and reduces user costs.

Apparatus, devices and methods that provide for storage and transfer of energy on demand into a completion well utilizing a subsea pipeline that supplies and transmits energy on demand from energy storage device(s) located at or near a production platform to a wellhead with a well casing that includes communication and power wires connected to the well casing and connects a subsea pipeline distribution section of the wellhead to the subsea pipeline with at least one power and communication pod to which communication and power wires are also connected and provides both power and bidirectional data communication to a multiplicity of sensors and actuators in an upper well portion with a T-connector that provides a connection into one or more energy storage devices allowing trickle charge and recharge of energy storage devices for both power and communication signals that monitor a state of charge of energy device storages over time.

The application discloses a kind of power distribution automation backup power battery overdischarge automatic activation method and system, comprising: detecting charger charging voltage V1 and battery terminal voltage V2, whether external charger is normally accessed according to V1 and V2;If external charger is normally accessed, battery charging current I3 and BMS communication data are detected;According to battery charging current I3 and BMS communication data, whether system operation is abnormal is judged;If system operation is abnormal, battery terminal voltage V2 is detected in real time, when V2 is less than the set starting trickle charging threshold value, then control circuit crosses BMS to battery with the set charging current value Constant-current charging is carried out;When V2 rises to the set stop trickle charging constant value or detects that BMS works normally, then trickle charging is cut off, and BMS carries out battery charging management activation process end.The application can solve the recovery after battery completely loses power under various extreme conditions, and does not depend on the work of BMS and other units, greatly reduces actual operation and maintenance workload.

The invention discloses a charging cooperative control method, device and equipment of a low-voltage lithium ion battery and a computer readable storage medium, and the method comprises the steps: determining a to-be-switched charging mode of the low-voltage lithium ion battery according to the obtained SOC of the low-voltage lithium ion battery, and enabling the charging mode to comprise a trickle charging mode; a first target signal is sent to a VCU through a BMS, so that the VCU cuts off an excitation circuit of a generator based on the target signal; when it is detected that the VCU cuts off the excitation circuit of the generator, the charging mode of the low-voltage lithium ion battery is controlled to be a trickle charging mode, and the technical problems that in the prior art, the operation of switching a current limiting module can cause the generator to lose load suddenly, and consequently voltage rise and power supply instability are caused are solved; the generator load throwing risk caused by sudden change of charging current of the low-voltage lithium ion battery is eliminated.

The invention relates to the field of cable insulation layer aging test, in particular to an electric vehicle cable insulation layer aging test method based on data analysis, which comprises the following steps: firstly, synchronously acquiring multi-dimensional data such as voltage, current, cable surface temperature and cooling system duty ratio based on a high-frequency sampling protocol; and then, the system constructs a virtual internal energy accumulation observation model by using the law of conservation of energy, and effectively eliminates a thermal hysteresis monitoring blind area caused by heat conduction of the insulating layer by calculating Joule thermal power input and an active heat dissipation correction term. Meanwhile, electric field auxiliary dissociation characteristics are constructed through the coupling voltage ratio and the heat accumulation degree, material activation energy is dynamically corrected through a power weight gating factor, and misinformation in the trickle charging stage is avoided. And finally, the virtual internal energy and the dynamic activation energy are mapped to the corrected Arrhenius equation, the insulation life loss is accurately calculated, and physical fidelity evaluation and real-time early warning of the insulation damage under the fast charge transient impact are realized.

This invention relates to the field of smart charging, and discloses a method, apparatus, device, and storage medium for dynamically adjusting a charging strategy. The method acquires the battery's state of charge (SOC) and environmental parameters; determines a charging strategy for the battery based on the SOC and environmental parameters; charges the battery based on the charging strategy and monitors its state in real time to obtain changes in battery state; and dynamically adjusts the charging strategy based on these changes. By incorporating environmental parameters into the formulation of the battery charging strategy, developing the strategy based on the SOC, and dynamically adjusting the strategy based on real-time changes in battery state, the method achieves rapid charging when the SOC is low and trickle charging when the SOC is high, improving charging efficiency, extending battery life, and enhancing the user experience.

The invention provides a charging pile power distribution device and method, electronic equipment and a medium. The device comprises a vehicle information acquisition module, a trickle charging state prediction module and a power pre-scheduling and smooth transfer module. The vehicle information acquisition module establishes communication with a battery management system of a charging vehicle, and collects and transmits battery state data and charging demand parameters in a vehicle charging process; the trickle charging state prediction module receives the battery state data and the charging demand parameters, predicts whether the vehicle enters a charging end period or not through multi-stage judgment logic, and outputs an end period identification signal when it is judged that the vehicle enters the charging end period; and the power pre-scheduling and smooth transfer module is used for receiving the last-stage identification signal and the vehicle charging demand parameters, adjusting the charging resource allocation quantity of the corresponding vehicle based on the last-stage identification signal, and reallocating the released charging resources according to the charging demand parameters of the other vehicles so as to realize dynamic optimization scheduling of the total charging resources of the charging piles.

The application discloses an emergency lithium battery management control method and an emergency lithium battery circuit. The method is suitable for an emergency power supply system comprising at least one lithium battery pack. The method comprises: performing cyclic charging and discharging treatment on each lithium battery pack, wherein the cyclic charging and discharging treatment comprises a trickle charging and discharging stage and a constant voltage stage which are cyclically performed within a set time; in the trickle charging and discharging stage, the lithium battery pack is controlled to be discharged at a first preset current for a first preset time, then the lithium battery pack is controlled to be charged at a second preset current for a second preset time, and then the constant voltage stage is performed; and in the constant voltage stage, the charging voltage of the lithium battery pack is set to a first preset voltage value and maintained for a third preset time. The application can prolong the service life of the lithium battery pack, reduce the failure risk, effectively improve the reliability of the backup power supply system, and play a positive role in maintaining the stable operation of a nuclear power plant.

A system for monitoring or managing a low voltage (LV) battery in an electric vehicle may include a ground bus connected with a negative terminal of the LV battery and a negative temperature coefficient (NTC) sensor. An electronic control unit (ECU) may receive temperature data and voltage measurements from the NTC sensor via a dedicated sense line to monitor battery health. The system includes a bi-directional (BiDi) switch connected between an LV battery and an LV direct current to direct current converter (DCDC) to enable trickle charging during a vehicle standby mode while preventing battery overcharge.

The application relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging method and system based on multiple communication modes, which comprises the following steps: when a communication connection instruction between a target charger and a target electric vehicle is received, a current communication signal feature set of the target electric vehicle is acquired; according to the current communication signal feature set, a current communication protocol type between the target charger and the target electric vehicle is identified; current battery state data of the target electric vehicle is acquired, and the target electric vehicle is charged according to the current battery state data of the target electric vehicle; it is known that the charger is compatible with SIF one-wire, UART single-wire or LIN bus three different communication protocols, the universality and application range of the charger are improved, meanwhile, detailed information of the vehicle battery can be acquired in real time, so that the charging current and time are adjusted according to the actual state of the battery, constant current charging, constant voltage charging, trickle charging and switching of different stages such as constant current charging are realized, and the charging efficiency is improved.

The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging method and system based on multiple communication modes, and the method comprises the following steps: obtaining a current communication signal feature set of a target electric vehicle when a communication connection instruction between a target charger and the target electric vehicle is received; identifying a current communication protocol type between a target charger and a target electric vehicle according to the current communication signal feature set; obtaining current battery state data of a target electric vehicle, and charging the target electric vehicle according to the current battery state data of the target electric vehicle; it can be known that charging of three different communication protocols including SIF one-line digital network, UART single line and LIN bus is compatible, the universality and application range of the charger are improved, detailed information of the vehicle battery can be obtained in real time, the charging current and time are adjusted according to the actual state of the battery, and the charging efficiency is improved. Switching of different stages such as constant-current charging, constant-voltage charging and trickle charging is achieved, and the charging efficiency is improved.

The invention discloses an energy storage battery direct-current grid-connected system for preventing bus current feedback, relates to a grid-connected power circuit and a grid-connected control circuit, and belongs to the field of direct-current bus voltage regulation and control. The system comprises a control part and a power part, the control part comprises a storage battery voltage isolation sampling unit, a data processing unit, a bus voltage isolation sampling unit and an isolation driving unit; the power part comprises a storage battery unit, a load unit, a power generation unit, an MOS tube unit, an ideal diode unit and a fly-wheel diode unit. Three system states of grid-connected channel closing, trickle charging and grid-connected channel opening are switched by analyzing the magnitude relationship between the storage battery voltage and the bus voltage in real time, the storage battery is prevented from being damaged by impact current, the long-term floating charging performance is prevented from being reduced, meanwhile, the bus energy is fully utilized, and the system reliability is improved. The method is especially suitable for a system which takes generator power supply as a main power supply and storage battery emergency power supply as an auxiliary power supply and has inductive load on a bus.

A system for monitoring or managing a low voltage (LV) battery in an electric vehicle may include a ground busbar connected with a negative terminal of the LV battery and a negative temperature coefficient (NTC) sensor. An electronic control unit (ECU) may receive temperature data from the NTC sensor and voltage measurements via dedicated sense wires to monitor battery health. The system includes a bidirectional (BiDi) switch connected between the LV battery and a LV direct current with direct current converter (DCDC), enabling trickle charging during vehicle standby mode while preventing battery overcharging.

The invention discloses a trickle charging early fire protection device, which relates to the technical field of electrical fire protection and comprises a current sampling module, a signal preprocessing module, a spectrum analysis module, a trickle judgment module, an abnormity judgment module, an alarm output module and an equipment context fusion unit which are connected in sequence, the current sampling module is installed on a main circuit of an electric box and used for collecting alternating current signals in real time, and the trickle charging early fire protection device solves the problem that trickle charging can only be discriminated and protected through an intermediate charger or a charging device in an existing charging network mode and cannot be discriminated and protected in a superior circuit. The problems that in an existing charging network mode, when an intermediate charger has a protection fault, charging abrupt change occurs, and a superior loop protection device cannot recognize and perform protection action are solved, and the hidden danger problem that in the existing charging network mode, protection cannot be performed and fire hazards are caused when an electric arc occurs in a no-load state is also solved.

The utility model discloses a battery power supply circuit, and relates to the technical field of battery charging, and the battery power supply circuit comprises a charging circuit, a charging control circuit, and a switching circuit. When a charging power supply is connected, the charging control circuit detects the battery voltage of the battery, when the battery voltage is not larger than a preset safety voltage, it is judged that the battery is in an over-discharge state at present, and a turn-off signal is correspondingly sent to the switching circuit so that the switching circuit can cut off a connection loop between the battery and the load. At the moment, because the switching circuit cuts off the connection relation between the battery and the load, the load does not consume electric energy when the battery is charged, and the charging circuit can only transmit a charging signal provided by the charging power supply to the battery and only provide electric energy for the battery, so that trickle charging of the battery in an over-discharge state is realized.

According to the high-precision trickle charging circuit and method and the electronic equipment, the clamping circuit and the second power tube are added on the basis of the prior art, and the grid electrode of the second power tube is modulated through the output end of the clamping circuit, so that the current flowing through the second power tube can be effectively controlled, and the charging efficiency is improved. Therefore, according to the trickle charging circuit, the precision of the trickle charging circuit can be improved, so that the charging efficiency is improved.

The invention discloses charging equipment and a charging control method and device thereof, and relates to the technical field of charging. The method comprises the following steps: when the voltage is lower than a preset charging forbidding threshold value, sampling for multiple times; judging the voltage state of the battery; if the battery is in the pseudo low-voltage state, charging the battery with a preset trickle charging current; and if in the real low-voltage state, executing charging forbidding operation. According to the invention, the voltage of the battery is obtained, and when the voltage is lower than the preset charging forbidding threshold value, multiple times of sampling are carried out to form the voltage sequence, so that whether the battery is in a transient'pseudo low voltage 'state or a real electric quantity exhaustion state is judged. The situation that the mobile power supply cannot be used due to direct charging forbidding caused by misjudgment is avoided, the battery is fully utilized on the premise of ensuring safety, and waste is reduced.

A battery charging and discharging management circuit includes a microcontroller, a microcontroller power supply circuit, an input voltage detection circuit, an input voltage start / stop circuit, a trickle charging circuit, a constant current charging circuit, a battery charging overcurrent detection circuit, a battery charging / discharging overtemperature detection circuit, a battery voltage detection circuit, a battery discharge switch circuit, a circuit operating status indicator circuit, and a battery interface. The trickle charging circuit and the constant current charging circuit are connected in parallel. The external power input is connected to the battery interface through the parallel trickle charging circuit and the constant current charging circuit. The external power supply charges the battery through the trickle charging circuit or the constant current charging circuit. During charging, the battery voltage detection circuit feeds back the detection result to the microcontroller. The microcontroller controls the operation of the trickle charging circuit and the constant current charging circuit. During charging, the microcontroller switches between the trickle charging circuit and the constant current charging circuit according to the battery voltage and charging time to ensure that the battery can be fully charged under different ambient temperatures without overcharging.

The application discloses a lead storage battery charging formation method and relates to the field of lead storage battery charging formation. The method comprises the following steps: (1) large-current intermittent pulse charging; (2) multi-stage variable-current constant-current charging; (3) lead storage battery constant-current discharging; (4) large-current constant-current charging; (5) high-frequency positive and negative pulse charging; (6) multiple circulation of steps (3)-(5); (7) trickle charging the battery to voltage stability and then carrying out acid extraction to complete the battery formation. The charging process disclosed by the application can reduce the battery electrolyte temperature in the formation process, improve the electrical performance of the storage battery, improve the consistency of the storage battery and improve the matching stability of the battery. Further, the premature capacity decline caused by the inconsistency of the battery in the use process of the storage battery is reduced, and the return rate of the lead-acid storage battery is reduced.

The invention discloses a nickel-metal hydride battery pack charging and discharging management circuit and a mining power supply system thereof, and relates to the technical field of power electronics, the nickel-metal hydride battery pack charging and discharging management circuit comprises a charging and discharging management chip, an MCU, a battery information acquisition chip, a first MOS tube switch, a second MOS tube switch, a third MOS tube switch and a current sampling resistor, and the first MOS tube switch and the second MOS tube switch are connected in series in a charging and discharging main loop of a nickel-metal hydride battery pack; the MCU controls on and off of the MOS tube switch based on information acquired by the battery information acquisition chip so as to cooperate with the charging and discharging management chip to realize a complete charging process including trickle charging, constant-current charging and complementation charging, and judges that the nickel-metal hydride battery pack is fully charged and stops charging when detecting that the terminal voltage of the nickel-metal hydride battery pack falls back at a peak value; according to the invention, the battery charging and discharging management chip is combined with single-chip microcomputer control, conditions adaptive to the charging and discharging characteristics of the nickel-metal hydride battery are simulated, potential safety hazards in system operation are reduced, and the service life of the nickel-metal hydride battery pack is prolonged.

A high-side driver-circuit involves a charge-pump for driving a high-side transistor. The circuit includes a high-side transistor, a low-side transistor or unidirectional conducting-device, a bootstrap-capacitor, and a trickle-charge-pump connected between the output-node and ground. The trickle-charge-pump activates when the voltage at the output-node exceeds the voltage at the low-voltage power-supply-node, alternately charging a trickle-capacitor and transferring charge to the bootstrap-capacitor. This enables continuous replenishment of the bootstrap-capacitor, allowing for extended or indefinite high-side conduction periods, including 100% duty-cycle operation. The trickle-charge-pump incorporates an auto-on / auto-off functionality, synchronizing operation with the output-node-voltage. It activates when the voltage at the output-node exceeds the voltage at the low-voltage power-supply-node and deactivates when the voltage at the output-node is less than the voltage at the low-voltage power-supply-node, enhancing overall efficiency. This design overcomes limitations of traditional bootstrap circuits without added complexity, providing an efficient approach for applications requiring sustained high-side operation in high-side driver circuits.

The present disclosure relates to a controllable power supply system of a single-cell battery, a charging method thereof and a terminal device. The controllable power supply system of the single-cell battery comprises a charging circuit and a single-cell battery, the single-cell battery comprising a first battery connector, a second battery connector, a first positive electrode lug and a second positive electrode lug; the first battery connector is connected to a first positive electrode tab through the first positive electrode lug, the second battery connector is connected to a second positive electrode tab through the second positive electrode lug, and the input ends of the two battery connectors are connected to the output end of the charging circuit; the charging circuit comprises a step-down module, a charge pump module and a control module; the step-down module and the charge pump module are connected to the input end and the output end of the charging circuit; the control module is used for controlling the step-down module to charge the single-cell battery in a trickle charging stage and a constant voltage charging stage, and controlling the charge pump module to charge the single-cell battery in a constant current charging stage. The controllable power supply system of the single-cell battery can improve the charging efficiency.

Apparatus, devices and methods that provide for storage and transfer of energy on demand into a completion well utilizing a subsea pipeline that supplies and transmits energy on demand from energy storage device(s) located at or near a production platform to a wellhead with a well casing that includes communication and power wires connected to the well casing and connects a subsea pipeline distribution section of the wellhead to the subsea pipeline with at least one power and communication pod to which communication and power wires are also connected and provides both power and bidirectional data communication to a multiplicity of sensors and actuators in an upper well portion with a T-connector that provides a connection into one or more energy storage devices allowing trickle charge and recharge of energy storage devices for both power and communication signals that monitor a state of charge of energy device storages over time.

The invention discloses a lithium battery charging power consumption control method and system, and relates to the technical field of lithium battery charging, and the method comprises the following steps: S1, monitoring and evaluation, S2, activation and trickle charging, S3, dynamic constant current charging, S4, intelligent constant voltage charging, S5, charging termination and intelligent maintenance, and S6, data recording and feedback mechanism. The charger records various data in the charging process, analyzes historical data through a machine learning algorithm, and optimizes future charging strategies and parameters. A dynamic adjustment strategy is utilized, the system can monitor the state of the lithium battery in real time and adjust the charging mode according to the actual situation, so that the problems of insufficient charging efficiency and single charging process are effectively solved, the charging habit of a user is analyzed by introducing a machine learning algorithm, the system can provide personalized charging suggestions, and the charging efficiency is improved. The requirements of different users are met, and the negative influence of a fixed charging mode on the efficiency is avoided.

The invention relates to the technical field of battery charging, and discloses a charging control circuit and method and power supply equipment. Comprising a charging interface used for being connected with an external power supply so as to be connected with the external power supply to output charging current to charge an energy storage assembly; the first charging circuit is connected with the charging interface and the energy storage assembly and is used for limiting charging current accessed by the charging interface to charge the energy storage assembly; and the control circuit is connected between the energy storage assembly and the charging interface, and if the voltage of the energy storage assembly is smaller than a preset working voltage, the control circuit limits the charging current output by the charging interface so as to charge the energy storage assembly based on the limited current. According to the invention, trickle charging can be started for the 0V energy storage assembly without external intervention, the problem that charging cannot be carried out due to BMS failure in a traditional scheme is solved, and the restorability of the energy storage assembly is remarkably improved.