22 results about "Direct-current discharge" patented technology

A tungsten-containing material that has an oxygen generation quantity of more than 1 ppm and 20 ppm or less at 2100° C. to 2300° C. as detected by oxygen analysis based on an oxygen separation method, and contains 5 ppm or more and 30 ppm or less of potassium.

The invention discloses a closed CO2 laser adopting diffusion cooling and longitudinal direct current discharge, and belongs to the technical field of laser beam combination, and the closed CO2 laser comprises a vibration suppression component which comprises a beam combination assembly, a laser used for emitting laser beams is arranged in the beam combination assembly, and a reflex reflector used for reflecting the laser beams is arranged in the beam combination assembly. An optical element used for transmitting and reflecting different laser beams is arranged in the beam combining assembly, through accurate light distribution of a reflex reflector and the optical element, reflection and transmission cooperative beam combination of four paths of laser beams with different polarization and different wave bands is achieved, and finally the four paths of laser beams are combined into one laser beam to be output. On the premise of keeping the original beam quality of the single-path laser, the power of the combined beam is increased by several times; and the beam combining light path is accurately matched with the light emitting path of the laser, additional optical loss is avoided, the light spot uniformity, the coaxiality and the polarization characteristic of the combined laser beams are guaranteed, and the strict requirement of industrial precision machining for the quality of the laser beams is met.

The application belongs to the technical field of liquid crystal film production, and particularly relates to a coating and drying equipment for liquid crystal film production, which comprises a shell, a gas supply system, a dust removal assembly, a coating assembly and a drying assembly. Through the setting of the dust removal assembly, the ionized air with positive and negative charges is generated at the slit position through the mutual discharge between the positive plate and the negative plate, the ionized air is blown to the electrostatic charge on the surface of the liquid crystal film through the long through port for static electricity removal, and the dust on the surface of the liquid crystal film is blown down at the same time. The dust that is not blown down is scraped down by the top of the scraper, is attracted and discharged by the negative pressure suction cover, and the space between the long through port and the short through port is blocked by the scraper. The positive plate position below the scraper generates ionized air with only negative charge in the air through the direct current discharge mode. The ionized air blown out of the short through port makes the surface of the cleaned liquid crystal film have static electricity, which is convenient for subsequent spraying and film coating.

The embodiment of the invention provides a direct current V2L discharge switching method and device, and electronic equipment. The method comprises the following steps: obtaining a first voltage value of a CC2 detection point in an improved national standard charging guide circuit by responding to a switching operation of a user for a selector switch, according to the improved national standard charging guide circuit, in a vehicle interface part of the national standard charging guide circuit, a change-over switch and a second resistor are connected in parallel on the basis of a first resistor between vehicle body grounding and a CC2 detection point; according to the first voltage value, the V2L discharge protocol is switched to a target discharge protocol, the target discharge protocol is a national standard charge protocol or a forward development discharge protocol, and the forward development discharge protocol is a reverse development protocol of the national standard charge protocol. The method is used for achieving the purpose of intelligent discharge switching which does not need manual transition intervention and is compatible with multiple protocols.

The invention belongs to the technical field of high-voltage power distribution of new energy automobiles, and particularly relates to a multi-branch power flexible switching circuit and a multi-branch power flexible switching method. Each circuit branch comprises an electric box group, a manual maintenance switch MSD, a direct current discharging relay, a power diode, a direct current charging relay I, a pre-charging relay, a pre-charging resistor, a current sensor, a direct current charging relay II and a gun base; the manual maintenance switch MSD, the direct-current discharge relay and the power diode are sequentially connected in series; the direct-current charging relay I is connected in parallel with the direct-current discharging relay and the power diode; the pre-charging relay, the pre-charging resistor and the direct-current discharging relay are connected in parallel; the current sensor and the direct current charging relay II are sequentially connected in series; according to the device, opening and closing control is carried out on circuit branches through the high-voltage sampling unit HVB, different electric box groups are selected for discharging, and the problem that a multi-branch power supply discharging scheme is single is solved.

The invention discloses a metallized film evaporation system based on plasma heating and a method thereof. The metallized film evaporation system comprises a vacuum chamber; the plasma generating module is arranged in the vacuum chamber, the plasma generating module is provided with an ion generator, the plasma generating module can ionize working gas to generate plasma in the modes of radio frequency, direct current discharge or microwaves and the like, and the power, density and distribution state of the plasma can be adjusted; and the metal raw material supply module is connected with the vacuum chamber and provides metal raw materials to be evaporated into the vacuum chamber. The metal raw materials are heated through plasmas generated by the plasma generation module, and compared with traditional heating modes such as resistance heating and electron beam heating, plasma energy is more concentrated and controllable. And the magnetic field adjusting assembly is matched to restrain and guide the motion trail of the plasmas, so that the plasmas can act on the metal raw materials more accurately, the heating efficiency is greatly improved, the evaporation rate of the metal raw materials is increased, the evaporation period is shortened, and the production efficiency is improved.

The invention provides an intracardiac electrical cardioversion system, comprising: an intracardiac defibrillator, the intracardiac defibrillator comprising a host, a line for outputting an intracardiac electrical signal and a line for inputting a body surface electrocardiosignal; the intracardiac cardioversion catheter is in signal connection with the intracardiac defibrillator host; wherein the system is configured to be switchable between an ECG mode and a DC direct current discharge mode; in the ECG mode, the intracardiac defibrillator transmits an intracardiac electric signal picked up by the catheter to an external electrophysiological device; in the DC direct current discharge mode, the intracardiac defibrillator can release cardioversion electric shock with a set energy value to cardiac muscle tissue through the catheter. And the purposes of improving safety and success rate are achieved.

A direct current discharge type iron ore sintering zero-carbon ignition heat preservation device comprises a sintering trolley, an ignition heat preservation furnace arranged above the sintering trolley and a lifting type two-phase direct current discharge electrode. The lifting type two-phase direct-current discharge electrode comprises a power supply bearing plate, a top electrode, a lifting motor and a bottom electrode. Wherein the power supply bearing plate is arranged at the upper part of the furnace top of the ignition holding furnace. The top electrode is arranged on the power supply bearing plate and penetrates through the power supply bearing plate and the furnace top of the ignition holding furnace. The lifting motor is connected with the power supply bearing plate and drives the top electrode to move up and down through the power supply bearing plate. The bottom electrode is arranged on the sintering trolley, and the arrangement position of the bottom electrode in the width direction of the sintering trolley corresponds to the arrangement position of the top electrode on the ignition holding furnace. The lifting type two-phase direct-current discharge electrode is used for achieving electric heating ignition on a sintering material surface, carbon emission is obviously reduced compared with the prior art, ignition is even, and the service life of a furnace lining of the ignition furnace is effectively prolonged.

The invention relates to the technical field of novel light sources, and particularly discloses a plasma-metal oxide coupling-based light emitting method, which comprises the following steps of S1, selecting a metal oxide as a light emitting carrier; s2, constructing a discharge device comprising a high-voltage electrode, a grounding electrode, a light-emitting carrier, a direct-current adjustable power supply, a current-limiting resistor and a wire; s3, placing the metal oxide on the surface of a cathode and applying a direct-current voltage to form a plasma channel; and S4, realizing dynamic matching of the plasma excitation intensity and the carrier concentration of the metal oxide based on voltage regulation and control, and obtaining controllable light-emitting output. The method has the beneficial effects that a plasma channel is established on the surface of the metal oxide through direct-current discharge, dynamic regulation and control of a carrier recombination process are realized through voltage regulation under the synergistic effect of high-energy electron bombardment and a heat effect of plasmas, and the luminous efficiency and the light intensity stability are remarkably improved; and a brand new technical direction is provided for the development of high-brightness and low-energy-consumption solid-state light sources.

A welding rod assembly has a seat, a chuck, and a welding rod. The chuck has a socket for the welding rod. The seat has a passageway having an inlet and an outlet, and a fluid conduit through the seat. The apparatus that has a power supply having a main control unit, and a welding electrode. It has synthetic discharge signal generator programmed to produce DC discharges as output electrical signals from the power supply. Each discharge has a voltage, charge, starting time and polarity. The discharges define a synthetic AC output. It has an output polarity reversing switch. The apparatus includes three output terminals, a first of the output terminals being connected to the welding electrode, a second of said output terminals and a third of said output terminals having respective workpiece connections.

The invention provides a low-voltage electrochemical energy storage system and a control method thereof. The low-voltage electrochemical energy storage system converts alternating current input by a power grid into direct current and inputs the direct current to a direct-current bus, and converts the direct current of the direct-current bus into alternating current and outputs the alternating current to a load. When the voltage of the direct-current bus is within a preset charging voltage range, the bidirectional conversion device converts the direct-current power of the direct-current bus into the direct-current charging power of the battery module and controls the charging current of the connected battery module to be a first current value; and when the voltage of the direct-current bus is within the preset discharge voltage range, converting the direct-current discharge power of the battery module into the direct-current power of the direct-current bus, and controlling the discharge current of the battery module to be a second current value. The battery cluster capacity and power configuration can be increased or decreased as required without changing the bus structure, the system integration complexity and the insulation requirement are reduced, and the cost, the efficiency and the battery life are considered.

The application discloses a closed CO2 laser adopting diffusion cooling and longitudinal direct-current discharge, belongs to the technical field of laser beam beam combining, and comprises a vibration suppression component, the vibration suppression component comprising a beam combining assembly, a laser for emitting laser beams is arranged in the beam combining assembly, a folding mirror for reflecting the laser beams is arranged in the beam combining assembly, and optical elements for transmitting and reflecting different laser beams are arranged in the beam combining assembly. Through accurate light distribution of the folding mirror and the optical elements, reflection and transmission of four different polarization and different waveband laser beams are realized, and the four different polarization and different waveband laser beams are finally combined into one laser output. On the premise of maintaining the original beam quality of the single laser, the power of the combined beam is improved by several times. The beam combining path is accurately matched with the laser light path, there is no additional optical loss, the spot uniformity, coaxiality and polarization characteristics of the laser beams after beam combining are ensured, and the strict requirements of industrial precision machining on the quality of the laser beams are met.

The invention discloses a vehicle-mounted high-voltage battery pack charging and discharging power supply system and a control method thereof, and relates to the technical field of vehicle-mounted high-voltage energy storage, and the method comprises the steps: a system wakes up a request for low voltage, and obtains working parameters; monitoring the voltage value of the storage battery, part faults and CAN (Controller Area Network) communication; if the voltage of the storage battery is normal, the system works normally and parts do not have faults, low-voltage standby is prompted; the system normally requests high voltage or requests charging; monitoring high-voltage interlocking, fault conditions and bus voltage during pre-charging; when the high-voltage state of the system is normal and high voltage is normally increased, pure electric discharge is prompted; after high voltage is applied, the system normally requests direct current charging, alternating current charging or inversion discharging. The high-voltage battery pack is adopted to meet the high-voltage direct-current electricity utilization requirement of the system and the load requirement, various charging and discharging application scenes such as direct-current charging and alternating-current discharging and direct-current discharging and alternating-current discharging are supported, the discharging or charging mode is flexibly recognized, and double-gun charging and discharging can be effectively controlled according to the real-time working condition.

The application discloses a fluorine-containing lithium battery recycling method, comprising the following steps: S1, stripping the battery to obtain a battery core, and collecting positive and negative electrode sheets respectively; S2, connecting the positive and negative electrode sheets to the positive and negative terminal posts of a direct-current discharge device respectively for low-voltage discharge treatment; S3, using Na2SO4 aqueous solution to perform ultrasonic-assisted deep discharge on the positive and negative electrode sheets after low-voltage discharge treatment until the voltage is stably reduced to <0.1V; and S4, vacuum drying the positive and negative electrode sheets after deep discharge to remove electrolyte, and performing multi-stage crushing and screening to obtain electrode sheet powder; the application realizes ultrasonic-assisted deep discharge, guarantees the purity of target metal ions in a lithium-rich solution, monitors and controls the concentration of Ca 2+ after fluorine removal, avoids the interference of impurity ions, and makes the purity of recycled lithium salt and the purity of recycled copper foil and aluminum foil higher, so that the waste of valuable metals is reduced, and the raw material utilization rate of unit fluorine-containing lithium battery recycling is improved.

The invention discloses a method and a system for predicting rod-plate gap direct current discharge voltage at an extreme temperature, and belongs to the technical field. The method comprises the following steps: taking the structural features and the meteorological features as feature input data; dividing the processed data into a training set and a test set according to a preset proportion, and optimizing key hyper-parameters of an AdaBoost-SVR model on the training set by adopting a five-fold cross validation grid search method so as to select an optimal hyper-parameter combination to construct a model; and inputting the feature input data into the AdaBoost-SVR model for prediction to obtain the direct current discharge voltage of the rod-plate gap at the extreme temperature. The method is suitable for data with small samples, reliable prediction values can be output only by depending on basic structure features and meteorological feature input of the rod-plate gap under the direct-current voltage without complex calculation, and the technical method has a continuous learning mechanism and can optimize the prediction precision along with test data accumulation.

The utility model belongs to the technical field of super capacitor discharge devices, and discloses a wind turbine generator super capacitor mobile DC discharge device, the upper side of a box body is connected with a box cover through a hinge, a discharge loop is arranged in the box body, and the discharge loop is provided with an anode line and a cathode line. The inner ends of the two connecting lines are respectively communicated with the positive line and the negative line; three energy-consuming resistors are connected in series between the positive line and the negative line, the positive line and the negative line are respectively connected with a contactor KM1, two ends of the energy-consuming resistor R1 and the energy-consuming resistor R2, and two ends of the energy-consuming resistor R2 and the energy-consuming resistor R3 are respectively connected in parallel with a contactor KM2. According to the utility model, the three energy-consuming resistors are connected to the circuit, and the series discharge and parallel discharge of the resistors are realized by closing the main contacts of the two contactors, so that direct grounding of the super capacitor due to misoperation can be effectively prevented, and personal injury and equipment damage caused by misoperation can be effectively prevented.

This invention discloses a discharge ionization source for ion mobility spectrometry, designed based on the principle of low-temperature plasma discharge. The radio frequency electrode of the discharge ionization source is a rod-shaped metal electrode placed inside a single-ended open quartz glass tube. The DC electrodes of the discharge ionization source are arranged in an array with equal spacing on the outer wall of the discharge glass tube. The potential of each DC electrode can be independently adjusted, facilitating the control of the DC electric field direction within the ionization source, thereby controlling the migration direction of ions. Furthermore, multiple gas interfaces are provided on the quartz glass tube, allowing for the control of the airflow direction and the composition of the discharge gas. Based on the array-type DC discharge electrode and multi-gas interface structure, the discharge ionization source uses air as the discharge gas, enabling switching between positive and negative ion modes, reagent ion components, and sample ionization methods. It features a simple structure, portable operation, and is suitable for ion mobility spectrometry.

The invention discloses a storage battery internal resistance measurement method, device and equipment for improving characteristic mode decomposition, and relates to the technical field of storage battery internal resistance measurement. The storage battery internal resistance measuring method comprises the following steps: performing pulse direct current discharge on a storage battery to obtain voltage and current sequence data of the storage battery; and according to the voltage and current sequence data, searching optimal parameters of characteristic mode decomposition in a parameter space through a Newton-quasi-Newton hybrid optimization algorithm. And according to the optimal parameters, carrying out dynamic frequency band scaling, correlation merging and zero-phase filtering to obtain a denoising mode and a reconstruction signal. And according to the de-noising mode and the reconstruction signal, carrying out feature evaluation and fusion screening through the spectrum peak matching degree, the square envelope spectrum negentropy and the maximum cross correlation, and obtaining de-noised voltage and current sequence data. And acquiring a voltage difference value and a current difference value according to the denoised voltage and current sequence data. And obtaining the internal resistance of the storage battery according to the voltage difference and the current difference.

The application discloses a self-powered buoy device based on electrostatic induction-direct current discharge composite effect and belongs to the technical field of buoy devices. A press iron ring is installed through the connection of two groups of power generation units. The device is aimed at efficiently collecting ocean wave energy, stably supplying power and improving power output, thereby solving the energy supply problem of small electronic devices. Through laboratory bench test, wave making flume experiment and real sea state experiment, the excellent performance of the device in various working environments is verified. Experimental data shows that when the wave frequency is 1.5 Hz and the wave amplitude is 40 mm, the maximum short-circuit current of the device is 210 mu A, the maximum open-circuit voltage is 2000 V, and the peak power density reaches 7.25 W / m 3 . The device can successfully light up 7200 LED lamp beads and stably supply power for commercial temperature and humidity sensors. Through a series of experiments, it is verified that the device has efficient and stable wave energy capturing capacity and is suitable for distributed sensor node power supply in a smart ocean monitoring system.

This invention discloses a high-power CO2 amplifier and its operating method, relating to the field of EUV lithography technology. The amplifier includes a vacuum system, a resonant cavity, and a pump source. The vacuum system consists of a turbopump, a vacuum pump, stainless steel tubing, and a glass tube forming a gas circulation channel. A large-diameter ceramic discharge tube is placed within the channel, with high-transmittance windows mounted at both ends via input and output window assemblies. The pump source uses a DC high-voltage power supply in conjunction with an anode needle and a cathode ring electrode arranged axially along the ceramic discharge tube. The operating method involves evacuating the cavity to a low pressure and backfilling it with a mixture of helium, carbon dioxide, and nitrogen. The turbopump is then activated to create an axial fast flow. A DC high voltage is set, and 10.6μm signal light is injected into the input window to achieve pulse amplification. The combination of the large-diameter discharge channel and the axial fast-flow DC discharge improves the amplifier's saturation intensity and discharge uniformity, reduces thermal damage, and is suitable for post-amplification stages of LPP-EUV light sources.

The application discloses a kind of vehicle-mounted high-voltage battery pack charging and discharging power supply system and control method thereof, it is related to vehicle-mounted high-voltage energy storage technical field, the method comprises: system wake-up request upper low voltage, obtain working parameter;Monitoring battery voltage value and component failure and CAN communication;Satisfy battery voltage normal, system normal work and component are without failure and then prompt low-voltage standby;System normal request upper high voltage or request charging;Monitoring high-voltage interlock, fault condition and bus voltage during pre-charging;System high-voltage state normal and normal upper high voltage then prompt pure electric discharge;After upper high voltage, system normal request direct current charging, alternating current charging or inverter discharge.The application adopts high-voltage battery pack to meet the high-voltage direct current power demand of system and load demand, supports multiple charging and discharging application scenarios, such as direct current charging alternating current discharge, direct current discharge alternating current discharge and the like, flexibly identifies discharge or charging mode, can effectively control double-gun charging and discharging according to real-time working condition.

A tungsten-containing material that has an oxygen generation quantity of more than 1 ppm and 20 ppm or less at 2100°C to 2300°C as detected by oxygen analysis based on an oxygen separation method, and contains 5 ppm or more and 30 ppm or less of potassium.