66results about How to "Improve charging quality" patented technology

The invention, which relates to the field of electrical power, provides a charging and energy storage integrated system comprising a voltage and current conversion system, an energy storage system, acharging system, and a data monitoring system. The voltage and current conversion system is configured to carry out current conversion or voltage conversion among a power grid, an energy storage system, and a charging system. The energy storage system is configured to store the electrical energy transmitted by the power grid and provide the electric energy for the charging system and/or the powergrid; the charging system is configured to charge an external electrical device by using the electric energy provided by the power grid and/or the energy storage system; and the data monitoring systemis configured to acquire electrical energy regulation parameters and regulate electric energy transmission among the power grid, the voltage and current conversion system, the energy storage system,and the charging system based on the electrical energy regulation parameters. Therefore, the charging quality for charging an external electrical device is enhanced.

The invention discloses a device and a method for testing the flow velocity of composite solid propellant slurry. The shells of three viscosity cups are respectively sleeved with a heat preservation jacket. A pressure output pipeline provides pressure for each viscosity cup. A pressure transmitter and a precise pressure reducing valve are mounted on the pressure output pipeline. The signal outputend of the pressure transmitter is connected with the signal input end of the computer through a data line. The signal output end of the electronic balance is connected with the signal input end of the computer through a data line. A periodic test method is adopted to sequentially obtain the flow velocity of the propellant slurry in each sampling period until the average value of the mass of the obtained propellant slurry in the period is less than 1g/min. Pressurizing curing production process conditions are reproduced, multiple models of pressurizing pouring processes of the medium-energy solid rocket engine are simulated, the change trend of the slurry along with curing reaction flowability is detected by applying the slurry flow velocity experiment model, and the high-solid-content high-viscosity slurry flow velocity and the accurate pressure curing time are given.

The invention discloses an automatic pier protection bagged material overwater throwing and filling device which comprises a floating crane, a loading device connected with a hook of the floating crane and a turning plate hinged on a ship board. A loading hopper is arranged below the floating crane. The loading hopper is fixed to a hopper controller. A discharge outlet is formed in the bottom of the loading hopper. A transporting cart is arranged below the discharge outlet. The transporting cart is provided with a filling bag. A feed port corresponding to the discharge outlet is formed in the top of the filling bag. The lateral of one side of the turning plate is connected with a turning plate positioning device. The transporting cart is provided with a snap ring. The turning plate is provided with a hook which is matched with the snap ring. Loading, throwing and filling are all conducted through mechanized equipment and are high in precision. Construction operation is good in continuity; construction quality is ensured; construction period is shortened; construction cost is reduced; and the degree of safety is high.

An anti-theft alarm device for protecting an electronic device from theft, includes a host, a connecting member and an alarm wire. The host includes a main control device, a charging contactor and an internal connecting wire. The charging contactor is connected to the main control device by the internal connecting wire in the host. The connecting member is fixedly attached to the electronic device and includes a charging terminal, a charging wire and an alarm connecting wire. The charging terminal and the charging wire are electrically connected. The charging wire is for connecting a charging port of the electronic device. The alarm connecting wire is for connecting the alarm wire and the electronic device. The alarm wire is for connecting the alarm connecting wire and the main control device. The charging contactor and the charging terminal are electrically connected when the host and the connecting member are mechanically connected.

The invention discloses a variable voltage rectifier of a diesel engine. The variable voltage rectifier comprises a switching power supply circuit, a bypass power supply circuit and a bypass control circuit, wherein the switching power supply switch is used for outputting voltage output by a charge coil after variable voltage rectifying; the bypass power supply circuit is used for outputting the voltage output by the charge coil after rectifying smoothing; and the bypass control circuit is used for detecting the output voltage of the bypass power supply circuit and comparing the detected output voltage with a set value, so that the bypass power supply circuit is disconnected. The variable voltage rectifier is large in input voltage range and small in output voltage ripple, and when the input voltage is lower than a set output voltage, the voltage lower than the set value can be directly output, so that the problem that the diesel engine cannot be started under the condition of without a storage battery when being started or the diesel engine cannot be automatically protected after being started is effectively solved, the charging quality of the storage battery is improved, and the service life of the storage battery is prolonged.

The invention discloses a charging roller capable of uniformly charging. The charging roller comprises a spindle, a sponge layer and a conductive surface layer, wherein the sponge layer coats the spindle; the conductive surface layer covers the sponge layer; and more than one deformation-resisting ring for resisting radial deformation of the sponge layer is distributed at the middle section of the spindle. Due to the adoption of the technical scheme, the deformation-resisting rings are increased at the middle section of the spindle, when the charging roller is pressed against a photosensitive drum, the middle section and the photosensitive drum are not fully contacted due to the middle section deformation, then the deformation-resisting rings are outwards supported in the radial direction due to the existence of the deformation-resisting rings, and deformation of the sponge layer is blocked. Meanwhile, the deformation of the middle section of the sponge layer is compensated, the middle section is driven to be fully contacted with the photosensitive drum, full contact between the charging roller and each part of the surface of the photosensitive drum is effectively guaranteed, the surface of the photosensitive drum is fully, effectively and uniformly charged by the charging roller, and the charging quality of the photosensitive drum is improved.

A charging structure including a power supply device, a rechargeable battery and a charging management device is provided. The power supply device is configured to provide a system voltage. The charging management device is configured to switch a corresponding charging mode according to the voltage level of the positive end of the rechargeable battery. The charging management device stops charging action when a charging current for charging the rechargeable battery drops down to a pre-set current value.

The invention discloses an adjustable charging parking space for new energy vehicles. The adjustable charging parking space comprises a parking space rack, a rotating adjusting seat and two track plates, the rotating adjusting seat is arranged at the bottom of the parking space rack, and the two track plates are each of a circular-arc-shaped structure and are arranged on the lower portions of thetwo ends of the parking space rack correspondingly. The adjustable charging parking space has the beneficial effects that the occupied area of the charging parking space is decreased while it is guaranteed that the containing capacity of the charging parking space for the vehicles needing to be charged is higher, and according to the charging parking space, the longitudinal space is sufficiently utilized to charge the loaded and placed vehicles; an operator drives the parking space rack to rotate by swinging an upper welding plate, it is guaranteed that people can flexibly adjust the working angle and position of the charging parking space and can flexibly adjust the angle and position of vehicle receiving or dispatching of the parking space, and it is guaranteed that the position where the vehicles loaded and placed in the parking space rack are connected with charging wires to be charged is more suitable; and the charging parking space has good social benefits and economic benefits,and is suitable for being used and popularized.

The present invention relates to a converter system of a switched reluctance generator, which is composed of a storage battery, twenty-two diodes, a three-phase winding, seven switching tubes, twelvecapacitors, two inductors and a bidirectional isolation converter. Under a converting structure comprised of the converter system, the enhanced excitation capability is realized by the automatic parallel excitation of two branch windings of each phase winding; the full-series high step-up output is realized by the automatic series generation of two branch windings of each phase winding in combination with the storage battery and related capacitors. Only one switching tube is needed in the process. An extremely high voltage can be directly output with the least switching tube; the storage battery can be charged automatically and the reverse energy feeding can be also realized in the same set of converting circuit; the level of intelligence is improved; and the demands that the system can still meet the requirement when more electric energy is needed on the load side of the output terminal of the converter system are adapted. The maximum withstand voltage of each switching tube in the whole system is low; the switching loss is low; and the switching tube is suitable for the application in the converter system of the switched reluctance generator under various power inputs and parallel connection or direct loads.

The invention relates to the technical field of an electric vehicle charging device and discloses an automatic voltage stabilization charging pile based on a pre-balance system. The charging pile is characterized in that a structure of the charging pile is a three-in two-out type, an input end of the charging pile is connected with two phase lines and an N line of a three-phase alternating currentpower supply, an output end of the charging pile is connected with a phase line and an N line of an electric vehicle single-phase line, and the automatic voltage-stabilizing charging pile of the pre-balance system comprises three sampling modules, an intelligent control module, a driving module, a dual-power module and an Internet-of-of-things module. The charging pile is advantaged in that according to random changes of parking and charging of a charging automobile, tracking adjustment is performed through system analysis, a charging power supply is switched, a charging circuit with a current sampling value smaller than a preset value is adjusted to be located on an optimal phase power supply to wait for charging, and automobile charging data are sent to a cloud database through an Internet of Things module to be stored.

The invention discloses an electric vehicle storage battery charging monitoring protection device, which comprises a charging row pile, wherein two rotating grooves with rightward openings are formedin the charging row pile; a blocking mechanism for fixing a charging connection part is arranged in the upper end of the charging row pile; the blocking mechanism comprises two translation cavities; afixed plate is fixed on the lower end walls of the translation cavities; a slidable magnet plate and a translation plate are arranged on the left side and the right side of the fixed plate in a closed manner; compression springs of which one ends are fixedly connected with the fixed plate are fixed on the magnet plate and the translation plate; and a connecting rope which just penetrates throughthe rear end wall of the translation cavity and the end wall, close to the translation plate, of the translation cavity and is fixedly connected with the translation plate is fixed on the magnet plate. The device is simple in structure and convenient to operate, can automatically complete self-locking of the plug and automatic protection of the charger through mechanical automatic operation, prevents others from stealing the charger or occupying a running socket, and improves the charging quality.

The present invention discloses a charging control method and system and a vehicle. The method comprises the steps that: a battery management system judges whether the detection voltage of a charger is larger than maximum allowable charging voltage or not according to the detection voltage of the charger sent by the charger and the maximum allowable charging voltage sent to the charger by the battery management system; if so, whether single battery maximum voltage of a battery pack is smaller than single battery maximum allowable voltage or not is judged further; if so, the maximum allowable charging voltage is raised such that the charger raises output voltage to charge the battery pack; and the charger enters into a constant voltage charging process until the single battery maximum voltage of the battery pack reaches the single battery maximum allowable voltage. According to the charging control method of the invention, the battery pack can be fully charged, and the charging efficiency of the battery pack is improved.

The invention belongs to the technical field of blasting powder charging, and particularly relates to an open pit smooth blasting powder charging device and an operation method of the open pit smooth blasting powder charging device. The open pit smooth blasting powder charging device is composed of a powder bag clamping and fixing device and a powder charging device body. The powder bag clamping and fixing device is composed of a semicircle clamping tube, a semicircle top plate, a semicircle base plate and a self-locking type binding strip. The powder charging device body is composed of a slant plate, a foot base plate, a perpendicular semicircle sleeve, a stabilizing plate, a bottom stopping rod, a top stopping rod, a reel, a brake wheel, a brake belt, a foot brake plate, a pawl wheel, a hand brake handle and a rope. The open pit smooth blasting powder charging device is simple in structure, practical and convenient to use, the powder bag manufacturing process and the powder charging process are combined together, the number of operators is decreased, and the labor efficiency is greatly improved. According to the open pit smooth blasting powder charging device and the operation method, the phenomena of powder bunch (powder tube) packaging material damage and detonating fuse kinking in the powder charging process are further avoided, and the powder charging quality of blast holes can be improved. The open pit smooth blasting powder charging device and the operation method are suitable for popularization and application in surface mines.

The invention discloses an intelligent battery with an information collection and communication function. The intelligent battery comprises a battery module, a detecting and controlling module, a sensor, a communication module, an executing module and an external signal interface unit, wherein the output of the battery module is connected with the detecting and controlling module, the output of the sensor is connected with the detecting and controlling module, the output of the external detection module is connected with the detecting and controlling module through the external signal interface unit, the detecting and controlling module is connected with a remote computer through the communication module, and the output of the detecting and controlling module is further connected with the executing module. The battery disclosed by the invention is simple in circuit design, and the direction on the battery and the monitoring on an external system can be achieved just by replacing a conventional battery by the intelligent battery without changing original equipment, so that the intelligent battery is convenient to install and stable and reliable to operate, the using efficiency of the battery is improved, and the service life of the battery is prolonged. The risk of halt of the system caused by power shortage of the battery can be effectively reduced.

The invention discloses a direct charge type electrical vehicle safety charge station/pile comprising an alternate power supply unit, charge components, a charge management component, a charging socket or plug connected with the charge components and a previous power transmission control circuit which is arranged at the guiding end of the charging socket or plug and which is composed of a field effect transistor Q81, transistors Q82 and Q83 and peripheral components. The drain electrode of the field effect transistor and the emission electrodes of the transistors are connected to the charging socket or negative electrode of the plug, the source electrode of the field effect transistor Q81 is connected to the charging socket or negative electrode of the plug, the source electrode output end of the field effect transistor Q81 is connected to the base electrode of the transistor Q82, the grid electrode of the field effect transistor Q81 is connected to a voltage sampling circuit through a voltage stabilizing tube, the collecting electrodes of the transistors Q82 and Q83 are connected to the charging socket or negative electrode of the plug through a control relay, one switch contact end of the control relay is connected to an alternate current input, and one end is connected to one switch power supply input ends of the charging components; a charge switching on-off control circuit is formed through the transistor Q83 and the peripheral components; the base electrode of the transistor Q83 is connected to a switch-on admission control signal output end of the charge management component.

The invention is applicable to the technical field of expressway instant charging, and provides a mobile instant charging system for an electric vehicle on a highway. The system comprises a pluralityof groups of symmetrically arranged photovoltaic power generation devices, a fixing device, a transmission conversion device and a receiving device located on the electric vehicle. Each photovoltaic power generation device comprises a photovoltaic panel, a bottom plate and a plurality of circles of discharge coils, and the discharge coils of the symmetrically arranged photovoltaic power generationdevices are oppositely arranged. The transmission conversion device comprises an inverter and a transformer, the two ends of the inverter are connected with the photovoltaic panels and the transformer respectively, and the transformer is connected with the discharge coils and a social power grid. Therefore, real-time charging of the electric vehicle can be realized, the charging efficiency is improved, the charging queuing time is shortened, and the service life is prolonged.