187results about How to "Fast discharge" patented technology

Examples of the present invention relate generally to high electric energy density polymer film capacitors with high charge-discharge efficiency and fast discharge speed. For example, a high energy density polymer capacitor may be fabricated using a polymer blend comprising one or more high dielectric constant PVDF-based polymers (including homopolymers, copolymers and/or terpolymers) and one or more other polymer with low dielectric loss and high volume resistivity compared to the one or more PVDF-based polymers. An example film capacitor may comprise a high temperature fluoropolymer with dielectric loss lower than 0.2% and good film manufacturability. Polymer films can be stretched and orientated at least in one direction to make thinner films with improved performance. Film capacitors can be made by winding metallized films, plain films with metal foils, or using a hybrid construction where the dielectric films comprise the new compositions. Capacitors can also have a multilayer construction where the films are metallized.

The invention discloses an AC-DC (alternating current-direct current) drive output filter capacitor quick active leakage circuit which comprises an output filter capacitor-side voltage detection circuit, a switch SW drive circuit, a switch SW and a low resistance load resistance RL, the switch SW drive circuit force the switch SW to be switched off when AC-DC convertor output filter capacitor-side voltage sensed by the output filter capacitor-side voltage detection circuit is larger than leakage voltage, and weak current flows through low resistance load RL; the switch SW drive circuit is in state overturn to force the switch SW to be switched when the AC-DC convertor output filter capacitor-side voltage sensed by the output filter capacitor-side voltage detection circuit is smaller than the set leakage voltage, and an output filter capacitor is enabled to discharge rapidly by the aid of the low resistance load RL. The AC-DC drive output filter capacitor quick active leakage circuit is quick in discharge, delayed start-up circuits are reset rapidly after power outage, discharge current is controlled to the greatest extent, and over-current damage to the switch SW is avoided; power consumption is lowered, and under the normal state, the discharge current can be integrally controlled under 100mW in power consumption.

The invention provides an internal runner structure of a butterfly type centrifuge. The internal runner structure comprises a feeding pipe, a centrifugal drum, a heavy liquid centripetal pump, a separating area disc, a light liquid discharging pipe, and a heavy liquid discharging pipe, and further comprises a top end disc and a feeding distributing disc, wherein the feeding distributing disc is arranged above the separating area disc; the top end disc is arranged above the feeding distributing disc; a feeding clearance is formed between the top end disc and one side of the feeding distributing disc; the feeding pipe is communicated with the feeding clearance; a heavy liquid clearance is formed between the top end disc and the inner wall of the centrifugal drum; the heavy liquid centrifugal pump is communicated with the heavy liquid clearance; the heavy liquid centrifugal pump is connected with the heavy liquid discharging pipe; the light liquid discharging pipe is arranged below the separating area disc. The internal runner structure has the advantages that solid, light liquid and heavy liquid are separated in the separating area; the light liquid discharging pipe and the heavy liquid discharging pipe are positioned at different positions; the separated liquid cannot meet with mixed liquid to form turbulent flow, and the separating effect is good; light liquid is drained by a rotating force of the centrifugal machine, so that a light liquid centrifugal pump is eliminated. The internal runner structure is simple in structure and high in liquid draining speed.

The invention provides a pipe replacing and slurry discharging device used for a slurry shield and capable of quickly discharging slurry in a slurry pipe without leakage and a slurry discharging mode. The pipe replacing and slurry discharging device comprises a sewage pump and an airtight slurry storage tank, wherein a slurry inlet of the airtight slurry storage tank is divided into two ways, one way is connected with a slurry inlet pipe through a slurry inlet pipe ball valve and connected with a slurry discharging pipe through a slurry discharging pipe ball valve after being provided with a master control ball valve, the other way is connected with a sewage tank through a membrane pump, and the sewage tank is connected with the slurry inlet pipe ball valve and the slurry discharging pipe ball valve respectively through a sewage ball valve. A slurry inlet pipe control ball valve and a slurry inlet pipe gate valve are arranged at the two ends of the slurry inlet pipe, a slurry inlet pipe breathing port is formed between the slurry inlet pipe control ball valve and the slurry inlet pipe gate valve, a slurry discharging pipe control ball valve and a slurry discharging pipe gate valve are arranged at the two ends of the slurry discharging pipe, and a slurry discharging pipe breathing port is formed between the slurry discharging pipe control ball valve and the slurry discharging pipe gate valve. The pipe replacing and slurry discharging device used for the slurry shield is high in slurry discharging speed, can be basically free of leakage, ensures tunnel cleaning, decreases the using amount of a slurrying agent and facilitates environmental protection, and the construction cost is reduced.

The invention discloses a compensation circuit applied to a liquid crystal display panel and a display device. The compensation circuit applied to the liquid crystal display panel comprises a power module and a compensation module, wherein the power module is used for providing a working voltage to the compensation module continuously when a power supply source is put through and cut off; the compensation module compensates a common voltage based on the working voltage. By adding the power module, charges stored in a capacitor are utilized for discharging after shutdown so as to provide the working voltage to the compensation module, so that the common voltage can be compensated, the problem that the charge discharging speed becomes slow after the shutdown is solved, therefore, the discharging speed of the charge can be speeded up after the applied voltage disappears, the liquid crystal is prevented from being polarized by the residual charges, asymmetric deviation of the liquid crystal is avoided after booting again, and effective control on the screen flicker phenomenon is realized.

The disclosure relates to the technical field of voltage stabilizers, in particular to a low-dropout linear voltage stabilizer. The low-dropout linear voltage stabilizer comprises a band-gap referencecircuit (10), a first operational amplifier (OPA1), a first adjusting tube (M1), a first compensation module (30), a second operational amplifier (OPA2), a second MOS tube (M2), a second compensationmodule (50) and an adjustable resistor (R0). The first adjusting tube (M1) is a PMOS tube, and the second MOS tube (M2) is a PMOS tube or a plurality of PMOS tubes are arranged and connected in series and/or in parallel. The output voltage clamping mode and the circuit structure of the low-dropout linear voltage stabilizer are different from those of the existing low-dropout linear regulator, theoutput impedance of the low-dropout linear voltage stabilizer is smaller than that of the existing low-dropout linear regulator, the discharging speed is higher, and the load sudden change transientresponse is improved.

The invention discloses a shifting register unit and a shifting register, and the shifting register unit comprises a shifting register module and a high-voltage discharge module; wherein the shifting register module is connected with a signal input end, a first reset signal end, a first low level end, a high level end, a first clock signal end and a second clock signal end; and the high-voltage discharge module is connected with an output end, a high level end, a signal input end, a first reset signal end, a second reset signal end, a first low level end and a second low level end of the shifting register module. According to the invention, the shifting register unit comprises the high-voltage discharge module which is connected with the shifting register module in series, the voltage difference of power supply for grid line is increased, the discharge speed is improved, the time of output voltage signal decrease is reduced, and the high-resolution requirement of an existing display device is met.

A solenoid valve includes a holder, which holds a locating rod that defines an air discharging hole for quick discharge of an air, a coil assembly, an actuating rod axially slidably mounted in the coil assembly, a spring stopped between the actuating rod and the locating rod, a flexible seal for sealing the air discharging hole and the coil assembly is energized to move the actuating rod toward the locating rod, and a slow-speed air discharging hole, which may be formed in the locating rod, the actuating rod, or the flexible seal for discharging of an air after blocking of the air discharging hole by the seal.

The invention relates to a chemical reaction vessel and relates to the technical field of chemical industry production. The chemical reaction vessel comprises a vessel body, wherein the bottom end ofthe vessel body is connected with a bottom bracing, a driving motor is mounted at the top end of the vessel body, a heating pipe is connected with the inner side of the internal wall of the vessel body, a stirring shaft is mounted inside the vessel body, and a stirring mechanism is connected with the external wall of the stirring shaft. The chemical reaction vessel has the beneficial effects thatstirring vanes can rotate along with that the driving motor drives the stirring shaft to rotate under the action of the stirring mechanism, thus, chemical liquid can enter inner grooves inside the stirring vanes, spaces inside the inner grooves are occupied by the chemical liquid, floating plates with buoyancy can move outwards from the inner grooves in internal sliding grooves of the stirring vanes along with connected sliding blocks during the rotation of the stirring vanes, and thus, the floating plates are abutted against the internal wall of the vessel body; and by such an arrangement, the stirring vanes can comprehensively stir the chemical liquid in the vessel body, and the stirring reaction of the chemical liquid is good in effect.

The invention relates to a low-sintering anti-ferroelectric ceramic material for high-energy-storage-density capacitors and a preparation method thereof. The anti-ferroelectric ceramic material comprises a lead-barium-lanthanum-zirconium-tin anti-ferroelectric ceramic phase and a barium-boron-aluminum-silicon glass phase. The general chemical formula of the anti-ferroelectric ceramic material is (Pb<0.91>Ba<0.015>La<0.05>) (Zr<0.6>Sn<0.4>)O<3+x wt%> (y)BaO-(z)B2O3-(1-y-z-w)SiO2, wherein x is greater than 0 and less than or equal to 1.0, y is greater than 0 and less than 1, z is greater than 0and less than 1,and w is greater than 0 and less than 1. In the preparation process, the anti-ferroelectric ceramic material is prepared by a solid-phase sintering method, and a glass sintering aid isintroduced, so that the compressive strength of the anti-ferroelectric ceramic material is remarkably improved, and the sintering temperature of the ceramic is greatly reduced. Compared with the prior art, the material has the characteristics of high energy storage density, high energy storage efficiency, excellent charging and discharging performance and low sintering temperature, is simple in preparation process, and has very important significance for developing pulse power devices such as multilayer ceramic capacitors.

The invention discloses a halogen-free flame-retardant wood-plastic co-extrusion composite material and a preparation method thereof. The halogen-free flame-retardant wood-plastic co-extrusion composite material comprises a core layer and a halogen-free flame-retardant surface layer for coating the core layer, wherein the core layer comprises plant fibers, PE plastic, a compatilizer, an antioxidant, a lubricant and an inorganic filler, and the halogen-free flame-retardant surface layer comprises PE plastic, modified polypropylene fibers, an ethylene-methacrylic acid copolymer, hypophosphite, zinc borate, an interface modifier, a light stabilizer, an antioxidant and other auxiliaries. The halogen-free flame-retardant wood-plastic co-extrusion composite material disclosed by the invention isvery simple to prepare, the core layer granules and the halogen-free flame-retardant surface layer granules are firstly prepared respectively, and then co-extrusion molding is carried out. The halogen-free flame-retardant wood-plastic co-extrusion composite material has the advantages of excellent flame retardancy, high strength, excellent impact resistance, high hardness, favorable wear resistance, low water absorptivity, favorable aging resistance, favorable wear resistance, favorable scratch resistance, high wood texture and favorable antiskid effect, and is not easy to fade or mildew whenbeing used outdoors.

The invention discloses an aluminum-air battery. The aluminum-air battery comprises an aluminum electrode, an air electrode, an electrolyte and a battery shell, wherein the aluminum electrode comprises a positive contact head and a shell body, the positive contact head is arranged outside the battery shell, the shell body is arranged in the battery shell, a connection rod is arranged in an axial direction of the shell body and is connected with the positive contact head, a plurality of openings are formed in the shell body along a circumferential direction, are uniformly arranged and are partitioned by partition plates, an electrode plate is arranged in the openings and is adaptive to the openings, the electrode plate is movably connected with the shell body, the air electrode comprises anegative contact head and a carbon rod, the negative contact head is arranged outside the battery shell, the carbon rod is arranged in the battery shell, an insertion rod and a groove are arranged atthe top of the battery shell, and the insertion rod is corresponding to the position of the electrode plate. The aluminum-air battery is reasonable in design, simple in structure and rapid in heat dissipation and is simple and convenient to operate, the working area of the aluminum electrode can be adjusted according to power utilization demand, the discharging speed of the aluminum-air battery can be increased, the utilization ratio of the aluminum electrode also can be improved, unnecessary consumption of the aluminum electrode is prevented, the aluminum electrode can be disassembled and replaced, and the cost is reduced.

The invention discloses a control method for a display panel. The control method comprises the following steps of: conducting a first switch group so that a first voltage drive unit provides a first positive drive voltage to a first data line and a second voltage drive unit provides a first negative drive voltage to a second data line; conducting a second switch group so that a first charge storage unit has a positive-polarity common voltage and a second charge storage unit has a negative-polarity common voltage; conducting a third switch group so that the first data line and the second data line are grounded; and after the polarity conversion, charging the second data line according to a first voltage comparison result, and charging the first data line according to a second voltage comparison result.

The invention discloses a heat-dissipation type wear-resistant brake pad comprising a metal sheet and a friction block. The metal sheet and the friction block are laminated into a whole, buffer slopes are arranged on two sides of the friction block, and micro pits are formed in the friction surface, toward a brake disc, of the friction block. A first arc-shaped slot group and a second arc-shaped slot group are formed in the friction surface, toward the brake disc, of the friction block. The arc protruding direction of arc-shaped slots in the first arc-shaped slot group is identical to the rotation direction of the brake disc, and the arc protruding direction of arc-shaped slots in the second arc-shaped slot group is opposite to the rotation direction of the brake disc. Depth of the arc-shaped slots in the first arc-shaped slot group is larger than that of the arc-shaped slots in the second arc-shaped slot group, and two ends of each arc-shaped slot in the first arc-shaped slot group and the second arc-shaped slot group extend to the edge of the friction block.

The invention provides a power battery stirring type efficient complete discharge device and a discharge method. The discharge device comprises a driving device, a closed cylinder, a stirring device,a solid discharge medium, a self-closing hole, a puncture device, an inflation device and a bracket, the driving device and the closed cylinder are fixed on the bracket; the stirring device and the solid discharge medium are arranged in the closed cylinder, and the power output end of the driving device is fixedly connected with a rotating shaft of the stirring device; the self-closing hole is formed in the closed cylinder, the puncture device is arranged on the outer side of the closed cylinder, and a puncture part of the puncture device is opposite to the self-closing hole; and the inflatingdevice is communicated with the air inlet of the closed cylinder. The device can effectively avoid the defects of the existing physical and chemical discharge methods, effectively reduce the harm ofthe discharge process to the environment and operators, protect the environment to the maximum extent, effectively relieve the technical difficulty of discharge and crushing recovery of the power battery, and improve the economic benefits of recovery enterprises.

The invention discloses an inverter circuit and a driving method thereof. The inverter circuit is composed of first, second, third and fourth transistors and a capacitor. The grid electrode and drain electrode of the first transistor are in connection with high voltage; the source electrode of the first transistor is in connection with the source electrode of the second transistor, the gird electrode of the third transistor, and one end of the capacitor; the grid electrode of the second transistor, and the grid electrode of the fourth transistor are both in connection with an incoming signal; the drain electrode of the second transistor is in connection with low voltage; the drain electrode of the third transistor is in connection with the high voltage; the source electrode of the third transistor, the source electrode of the fourth transistor, and the other end of the capacitor are all in connection with an output port; the drain electrode of the fourth transistor is in connection with the low voltage. The inverter circuit can realize inverter low power consumption.

The invention relates to a wet brake for a forklift drive axle, which comprises a left casing, a right casing, a piston assembly, as well as spacers and frication plates that are arranged in a stagger manner, wherein the piston assembly, as well as the spacers and the frication plates that are arranged in a stagger manner are mounted in a cavity formed by connecting the left casing with the right casing, first arc oil grooves in the clockwise direction and second arc oil grooves in the anti-clockwise direction are uniformly formed in the two side faces of the frication plates respectively, the first arc oil grooves and the second arc oil grooves are staggered with each other to form grids, a floating oil seal is arranged at the end part of the right casing corresponding to a hub, and another matched floating oil seal is mounted at the end part of the corresponding hub when in use. Oil flow channels of the arc oil grooves of the wet brake are longer, vortices are generated at cross points of the grooves, the oil discharging speed is relatively lower, the heat exchange time of the oil with a friction interface is slightly prolonged, and the utilization ratio of the cooling effect of the oil is increased.

The invention relates to a pulse laser with a narrow pulse width, and the pulse laser comprises a circuit substrate, a laser chip, capacitors and a field effect transistor, wherein the field effect transistor, the capacitors and the laser chip are all electrically connected to the circuit substrate, and the capacitors are arranged between the field effect transistor and the laser chip and are arranged in the extension direction of a gap between the field effect transistor and the laser chip. According to the technical scheme provided by the embodiment of the invention, the layout of the structural components in the pulse laser is optimized, and the distance between the field effect transistor and the laser chip is reduced, so that the layout of the structural components is more compact, the loop inductance of the pulse laser is reduced, and the discharge speed of the pulse laser is higher; when the pulse laser works, the pulse width output by the pulse laser is compressed, and the pulse laser with the narrow pulse width is achieved. Further, when the method is applied to the laser radar, larger point cloud density, higher ranging precision, better repeatability and larger limit ranging distance can be achieved.

The invention provides a bit line cutting buffer which is connected in series with two sections or more segmentation registers so as to cut a whole bit line into different series of bit lines. The bit line cutting buffer comprises a level detection circuit and a post bit line discharging control circuit, wherein the level detection circuit comprises a NOT gate made up of P1 and N1; the input end of the NOT gate is connected with a preceding bit line; the post bit line discharging control circuit comprises a NMOS transistor of a drain open circuit; the output end of the level detection circuit is connected with the grid of a post bit line discharging control circuit; the drain output end of the post bit line discharging control circuit is arranged for discharging a lower bit line; and the source of the post bit line discharging control circuit is grounded. A folding bit line cutting method greatly decreases the influence caused by generated extra cascading delay when the series are redundant during the process of dividing. The bit line cutting technique is assisted by a corresponding charging mechanism.