1245results about How to "Realize charging" patented technology

The invention relates to a photovoltaic cell -DC/DC boost conversion charge method which belongs to battery technique field. The method includes: 1) a portable equipment accumulator voltage is detected by a voltage sensor, when lows to full charge capacity, the voltage sensor makes DC/DC boost converter starting DC/DC conversion, and electricity quantity flows from photovoltaic current to lithium battery for charging; 2) when the portable equipment accumulator is in full charge capacity state, accumulator need not charge again, the voltage sensor makes DC/DC boost converter forbidding DC/DC conversion, thereby, the portable equipment accumulator is protected and over charge phenomena is prevented. The method can be realized simply, and has short reaction time, high efficiency, overvoltage protection and anti-counterblast protection.

The invention discloses a robot automatic charging device and a robot automatic charging method. The robot automatic charging device comprises a power supply connecting module, a moving module, a battery monitoring module, an external image acquisition module, a storage module and a master control module, wherein after receiving a charging request signal, the master control module controls the external image acquisition module to acquire images in the ambient environment of the robot, searches images matched with reference images of an external power supply socket from the acquired images and judges whether the external power supply socket exists or not, if yes, the position of the power supply connecting module relative to the external power supply socket is calculated, and the moving module is controlled to drive a robot to move toward the external power supply socket so as to enable the power supply connecting module and the external power supply socket to be aligned and connected with each other. According to the invention, the robot can complete charging automatically without manual intervention when the electricity quantity of a charging battery is not enough. The robot automatic charging device is suitable for any existing alternating-current power supply socket.

The invention discloses a mobile charging method, device, and system for vehicle. The mobile charging method includes: acquiring electric quantity information, positioning information and driving information of a vehicle to be charged; sending charging request information carrying the electric quantity information, the positioning information and the driving information to a server so as to allow the server to determine a power supply vehicle and meet path information for the vehicle to be charged according to the electric quantity information, the positioning information and the driving information, wherein the meet path information is used for allow meeting between the power supply vehicle and the vehicle to be charged; and allowing the vehicle to be charged to receive electric energy from the power supply vehicle according to a preset charging manner while the power supply vehicle meets the vehicle to be charged according to the meet path information. The vehicle to be charged can be charged during a traveling process, the endurance problem is overcome, and a designated form route does not have to be changed.

The invention discloses an orderly charging control method, controller and system. The orderly charging control method is suitable for direct-current charging piles and includes: and includes: acquiring real-time load of a station transformer, real-time charging demanded power of vehicles and real-time running condition of the charging piles; on the premise that the load of the station transformerdoes not exceed a limit, formulating an orderly charging strategy, and issuing the same to the charging piles, wherein the orderly charging strategy includes: charging the vehicles according to preset priority and preset output power of the charging piles if total charging demanded power of the vehicles does not exceed current residual power of the station transformer; when the total charging demanded power exceeds the current residual power, the charging piles with higher priority work at full power in a prioritized manner, and the charging piles with lower priority charge through power smooth adjusting. By the method, orderly charging of electromobiles is realized, and matching between charging load of the electromobiles and power supply capacity of a power distribution network is realized through orderly charging control by utilizing the characteristic of energy-type load of the electromobiles, so that power supply of the electromobiles and running safety of the power distributionnetwork are ensured.

The invention relates to the technical field of an energy-saving charging and discharging test on cells, and specially, relates to a method for energy-saving charging and discharging of cells and a system for testing energy-saving charging and discharging of cells. When all cells are in a charging state, power is sent from an electrical network and orderly passes through a direct current-alternating current transformation unit, a direct current-direct current transformation unit and the cells. When all the cells are in a discharging state, power is sent from the cells and orderly passes through the direct current-direct current transformation unit, the direct current-alternating current transformation unit and the electrical network. When cell charging powder and cell discharging powder are unequal, the powder unbalance is adjusted by the direct current-alternating current transformation unit and the electrical network. In the invention, charging and discharging of cells are realized simultaneously. Powder produced by cell discharging is fed back to an electrical network so that powder cyclic utilization is realized and powder-saving effects are obtained. A part of the cells are in a charging state and the other part of the cells are in a discharging state so that powder can be transmitted between the two parts without passing through the electrical network and thus powder cyclic utilization efficiency is improved; powder consumption is reduced; charging-discharging integration is realized; and operation processes are simple and efficient.

The invention discloses a charge controller of a wind turbine generator and a control method thereof, and the charge controller comprises a rectifier circuit connected with the output of the wind turbine generator and is characterized in that the output end of the rectifier circuit is connected with a battery pack through a switch K1, an unloading loop and a BOOST circuit, and the unloading loop and the BOOST circuit are further connected with a control circuit. The rotational speed of a wind turbine is determined by detecting the frequency of the output voltage of the wind turbine generator, thereby rapidly and effectively protecting the wind turbine generator. The charge controller is provided with the BOOST circuit with the novel control mode, and the start and the stop of the BOOST circuit are controlled according to the detected rotational speed value of the wind turbine generator, thereby realizing the effective charge under the low wind speed condition and preventing the wind turbine generator from dragging and stopping. The maximum utilization of wind speed can be realized by the mutual coordination of the BOOST circuit and the unloading circuit. The limited-voltage and limited-current charge of batteries can be realized and the service life of the batteries can be prolonged through the intelligent control of a single chip micro-computer.

The invention relates to a self-adjusting wireless charging system and method for an electric automobile and belongs to the technical field of electric automobile charging. Compared with a wired charging system, the operability of the wireless charging system is simpler. When the distance between a transmitting coil and a receiving coil is within the range of 50 cm, high-efficiency power transmission can be achieved. A variable current load tracking charging mode is further contained, charging can be performed according to the optimal charging current curve, so the service life of a battery is prolonged. Wireless charging is independent of automobile model numbers and the size and the shape of an energy receiving unit, so the electric automobile can charge the battery without depending on external connection equipment. In addition, according to the self-adjusting wireless charging system and method, a wireless power generation device and a wireless power receiving device can be in real-time communication, and the output power of the wireless power generation device can be adjusted according to the state of the battery, so the control mode of load tracking is achieved; the self-adjusting wireless charging system and method enable charging equipment to be higher in reliability and longer in service life, can meet the requirement for electric automobile charging of clients and is high in charging efficiency and practicality.

The invention discloses a drawn-arc type stud welding gun, which comprises a fixed component and a movable component. A stud receiver component and a cylinder piston component are arranged at the middle part of the movable component; the stud receiver component is mounted at the front end of the cylinder piston component, and an arc-shaped screw transporting slide is formed therein; a conducting clamping head of the receiver component is mounted in front of the stud receiver component, the penetrating inner hole thereof is communicated with a screw outlet port of the arc-shaped screw transporting slide and a screw inlet port of the arc-shaped screw transporting slide of the receiver component is communicated with the outside of the welding gun; and a piston rod of the cylinder piston component is coaxial with the inner hole of the conducting clamping head; and when the piston of the cylinder piston component moves forward, the piston rod thereof enters the inner hole of the conducting clamping head through the arc-shaped screw transporting slide of the stud receiver component, and the air passage of the cylinder piston component is communicated with the outside of the welding gun. The drawn-arc type stud welding gun can realize the automatic feeding and loading of the stud welding screws after the automatic feeding device is connected with the stud welding power source, thereby greatly improving the welding speed of the stud welding screws and reducing the labor intensity of workers at the same time.

The invention relates to the technical field of electric automobiles, and discloses an electric automobile charging method and a device. The method comprises the steps that a charging pile obtains theidentification information of a vehicle-mounted terminal; the charging pile sends a charging request to a charging pile server, and the charging request comprises the identification information of the vehicle-mounted terminal; the charging pile server sends a charging verification request to a cloud server, and the charging verification request comprises the identification information of the vehicle-mounted terminal; the cloud server judges whether a user label corresponding to the identification information of the vehicle-mounted terminal is contained in the preset user label library or not;if the user label corresponding to the identification information of the vehicle-mounted terminal is contained in the preset user label library, the cloud server sends a first charging instruction tothe charging pile server; and the charging pile server sends a second charging instruction to the charging pile, so that the charging pile can carry out charging operation on the vehicle-mounted terminal. According to the technical scheme provided by the electric automobile charging method and the device, the operation steps of charging of an electric automobile can be simplified, the automatic charging without using mobile phones and charging cards is achieved, so that the electricity utilization safety is ensured during using the charging pile, and the service life of the electric automobile is prolonged.

The invention discloses a parking and battery charging accounting management method and system for electric cars. The system comprises a park exit and entrance gate brake switch control unit, an automatic charging management machine, a stall indication screen, electric car charging posts, parking and battery charging cards, stall detectors, a central controller and a back-stage management server. The park exit and entrance gate brake switch control unit, the automatic charging management machine, the stall indication screen and the central controller are connected with the back-stage management server for communication through optical fibers and the like. The electric car charging posts and the stall detectors are connected with the central controller for communication through optical fibers and the like. According to the parking and battery charging accounting management method and system, managing and battery charging of the electric cars can be effectively achieved, unmanned payment can be achieved, transparent and real-time information can be achieved, the payment time can be shortened, labor and financial resources can be saved, the operation complexity can be lowered, and finally intelligent parking and battery charging of a park can be achieved. In addition, the scheme is simple, the cost is low, maintenance is convenient, and therefore the parking and battery charging accounting management method and system are suitable for application and popularization.

The invention relates to a charging/ heating control method for an electric car power battery, relates to the technical field of lithium-ion power battery heating and charging, and solves the problemsthat preheating needs to be carried out when the lithium-ion power battery is used under a low temperature environment but an existing external heating device is uneven in temperature distribution soas to be likely to damage the battery. By use of the method, when the surface temperature of the lithium-ion power battery is lower than a set temperature and the SOC (State Of Charge) of the batteryis lower than a preset value, a power supply charges a super capacitor, and the super capacitor carries out alternating frequency charging and discharging on the lithium-ion power battery through bidirectional DC (Direct Current)/DC. Otherwise, the lithium-ion power battery provides self-heating energy, the alternating frequency charging and discharging is carried out on the super capacitor through the bidirectional DC/DC, and the alternating frequency excitation heating of the lithium-ion power battery is realized. When the temperature of the lithium-ion power battery is greater than a set temperature and the lithium-ion power battery is not fully charged, the lithium-ion power battery is charged until the electric quantity of the lithium-ion power battery is full. The method is suitablefor heating and charging the power battery.

The invention relates to an unmanned ship system used for inland river environmental monitoring. The unmanned ship system comprises an unmanned ship module, an intelligent wharf module and an upper computer. The unmanned ship module is arranged on the unmanned ship and intercommunicates with the upper computer through the intelligent wharf module. The intelligent wharf module is arranged on the stop wharf of the unmanned ship. The unmanned ship module autonomously completes specified path obstacle avoidance cruising and water quality detection and returns to the wharf according to the path andthe water quality detection task set in the upper computer and autonomously uploads the working state information to the intelligent wharf module. The intelligent wharf module performs autonomous charging and fault inspection of the returned unmanned ship module, and the upper computer inquires the current working state information of the unmanned ship in the intelligent wharf module in real time. Compared with the systems in the prior art, the water quality information of the target waters can be effectively and rapidly acquired without personnel operation so that unmanned water environmental monitoring management can be realized, a lot of manpower and material resources can be saved and the working efficiency can be enhanced.

The invention discloses a novel energy charging pile device. The novel energy charging pile device comprises a charging pile body, a charging end and a charging terminal, wherein the charging end is arranged on the right side end face of the charging pile body; the charging terminal is connected with a novel energy automobile; a base is fixedly arranged at the bottom of the charging pile body; a counterweight block is arranged on the bottom in the base; a rain-proof cover is fixedly arranged on the top of the charging pile body; insertion holes which have ports facing rightwards and are formedcorresponding in vertical direction are formed in the charging end; a slide cavity capable of extending leftwards and rightwards is formed between the two insertion holes in the charging end; a leftslide block and a right slide block capable of sliding leftwards and rightwards are arranged in the slide cavity; power transmission plugs which are connected with the commercial power are arranged onthe right end face of the left slide block in vertical direction; electric connectors which are matched with the power transmission plugs are arranged on the left end face of the right slide block vertically.

A vanadium sodium phosphate positive electrode material, a sodium ion battery, and a preparation method therefor and application thereof. The preparation method of the vanadium sodium phosphate positive electrode material comprises the following steps: (1) reacting an aqueous solution containing a vanadium source with a phosphorus source, a reducing agent, a sodium source, and a carbon source, the reaction comprising first performing a reaction of an aqueous solution of the vanadium source and the phosphorus source, and then perform a reaction with the reducing agent, or first performing a reaction of the aqueous solution of the vanadium source with the reducing agent and then performing a reaction with the phosphorus source; (2) drying and calcining the reaction liquid obtained in step (1). The vanadium sodium phosphate positive electrode material has a high dispersibility, and has stable circulation performance when used in a battery.

The invention relates to a coordinated control method for intelligent charging of an electromobile and solves the technical problem that economic and reasonable charging of conventional intelligent charging management on the electromobile is not achieved. The key lies that the redundant capacity of a transformer is utilized to the greatest extent to achieve electromobile charging on the condition of ensuring safety; the basis can be that one or more paths of outputs of the transformer is independently connected with a charging pile, load monitoring is carried out with a load outside the charging pile, and the redundant capacity of the transformer can be utilized to achieve intelligent charging management on the electromobile on the condition that normal power utilization is met; when the redundant capacity of the transformer and the required number for electromobile charging are balanced, the number of the charging piles which can be involved is determined according to percentage, the charging piles are used for charging according to priority rather than the redundant capacity is all used for the charging piles at one time, and thus, the adverse impact brought by abrupt increase of the load of the transformer is reduced.

An internet of things-based passive wireless cold-chain transportation vehicle-mounted real-time monitoring system provided by the present invention comprises a main controller, a sensing unit, a thermal insulation container, a base station, a server and a remote terminal. According to the present invention, aiming at the problem that the external environment of a key agricultural product cold-chain transportation intermediate link needs to be monitored for the whole course, an internet of things technology is utilized to research and develop the main controller, thereby being able to finish the real-time positioning of the cold-chain logistics vehicles and the real-time monitoring of the environmental information; the remote terminal can monitor the cold-chain information real-timely, thereby finishing the real-time monitoring of the environmental information of the logistics links, and becoming a part of the agricultural product information traceability. By adopting an EnOcean energy search technology and an EnOcean wireless communication technology, a sensor is supplied with power, the main controller is charged, the signal lines and the power lines do not need to be deployed, the arrangement is flexible, the power consumption is low, the energy is saved, and the consumption is reduced.

The invention relates to a starting method for a current transformer, and is applied to the current transformer of which a main circuit is formed by sequentially connecting a direct current (DC)/DC conversion circuit and a DC/alternating current (AC) conversion circuit. A DC bus capacitor is arranged between the output end of the DC/DC conversion circuit and the input end of the DC/AC conversion circuit. The method comprises the following steps of: connecting an AC power grid with the DC end of the main circuit by a current limiting resistor, charging the DC bus capacitor by utilizing the AC power grid, regulating the main circuit to make the amplitude and phase of the output voltage of the main circuit are the same as those of the voltage of the AC power grid to meet grid connection requirements, and connecting the AC end of the main circuit to the AC power grid. By the starting method for the current transformer, not only relatively lower starting current is ensured to make radiation designing easier to realize, but also synchronous grid connection is realized to make grid connection impact current relatively lower; and the method is particularly applied to the starting of a DC double-channel or multi-channel current transformer.

The invention relates to storage battery charge and discharge circuit topology which comprises a first stage of circuit, a second stage of circuit and a digital signal processor (DSP) controller; the first stage of circuit comprises three phases of alternating current power grids and an inverter circuit; the inverter circuit is provided with six transistors of a three-phase bridge, and the second stage of circuit comprises a first conversion circuit, a transformer, a second conversion circuit and a battery; and the DSP controller controls the output voltage, the output current and the switching direction of the inverter circuit and two direct current-direct current (DC-DC) conversion circuits so as to control the charge or the discharge of the whole circuit. After the device is adopted, charge and discharge with unit power factor can be realized for a power grid side; the pollution to the power grid is little; through a certain control method, a pulse width modulation (PWM) rectifier can realize a scalable vector graphics (SVG) function; the output of a wide voltage scope can be realized; and the charge and discharge efficiency is higher.

The invention belongs to the field of mobile terminals and provides a charging method, a charging circuit and a mobile terminal. A temperature detecting circuit detects the temperature of a cell and outputs the temperature to a control circuit; the control circuit judges whether the temperature is lower than first temperature, if the temperature is lower than the first temperature, a heating instruction is sent to a heating circuit, and if the temperature is higher than or equal to the first temperature, a quick charging instruction is output to a quick charging circuit; when receiving the heating instruction, the heating circuit heats the cell; when receiving the quick charging instruction, the quick charging circuit charges the cell with a first current through a charging interface. Even if the cell is located in a low-temperature outside environment, the surface temperature of the cell can be ensured through the heating circuit, the cell can be charged in a large-current mode, and the charging time is saved.