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187results about How to "Fast discharge" patented technology

High electric energy density polymeric compositions, methods of the manufacture therefor, and articles comprising the same

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.
Owner:NOVASENTIS

AC-DC (alternating current-direct current) drive output filter capacitor quick active leakage circuit

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.
Owner:GUANGDONG UNIV OF TECH

Internal runner structure of butterfly type centrifuge

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.
Owner:顾智浩

Pipe replacing and slurry discharging device for slurry shield and slurry discharging mode

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.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

Photoelectric relay capable of discharging quickly

InactiveCN103036550AThe current magnification increasesFast charge extraction speedElectronic switchingCharge dischargeField-effect transistor
The invention discloses a photoelectric relay capable of discharging quickly, and belongs to the technical field of electronics. The photoelectric relay comprises an input end light-operated signal producing circuit, a light-operated signal receiving and photovoltaic conversing circuit, a control circuit and an output circuit. The input end light-operated signal producing circuit is composed of a light-emitting diode (LED) (11). The light-operated signal receiving and photovoltaic conversing circuit is composed of a photodiode array (PDA). The control circuit comprises a cascade audion and three diodes, and is used for providing a charge-discharge channel for power metal oxide semiconductor field effect transistor (MOSFET) components of the output circuit. The output circuit comprises a pair of power MOSFET components. According to the photoelectric relay capable of discharging quickly, cascade of two or a plurality of audions is adopted in the control circuit, current amplification times of the audions are amplified after cascade, and speed of extracting charges is accelerated obviously. Compared with an existing photoelectric relay, the photoelectric relay capable of discharging quickly is faster in discharging speed and can be applied to relay situations of higher frequency.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Compensation circuit applied to liquid crystal display panel and display device

ActiveCN104112438AFast dischargePrevent charge polarizationStatic indicating devicesResidual chargeCapacitance
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.
Owner:BOE TECH GRP CO LTD +1

Low-dropout linear voltage stabilizer

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.
Owner:BYD SEMICON CO LTD

Shifting register unit and shifting register

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.
Owner:BOE TECH GRP CO LTD

High voltage discharge tube

The invention provides a high voltage discharge tube. The discharge tube comprises insulating tubes, connection loops, conducting rods and electrodes, wherein the connection loops are respectively connected at the two ends of the insulating tubes and are used for sealing the insulating tubes; one end of the conducting rods is fixedly arranged at the inner sides of the connection loops; the electrodes are fixed at the other end of the conducting rods; binding posts for connecting the discharge tube to a circuit are arranged at the outer sides of the connection loops; and the insulating tubes are filled with pure hydrogen for extinguishing arc. The discharge tube has the following advantages: the discharge tube has small volume, bears high overvoltage, prevents explosion, protects the environment and does not have polarity (the polarity is not obvious), residual voltage or noises; the overvoltage energy rapidly breaks down and is discharged in the discharge tube and is earthed to be released via the discharge tube, so the discharge tube is suitable for the inflammable and explosive hostile environment; the sealed discharge tube ensures the discharge voltage to be stable and not to be affected by the humidity and air pressure of the ambient environment; and the discharge tube has low capacitance and inductance, thus not affecting the protected circuit.
Owner:苏州名阳真空电器有限公司

Solenoid valve for different air discharging speeds

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.
Owner:TRICORE CORP

Chemical reaction vessel

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.
Owner:江门市新会天御硅制品有限公司

Low-sintering anti-ferroelectric ceramic material for high-energy-storage-density capacitors and preparation method thereof

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.
Owner:TONGJI UNIV

Floor drain with functions of grinding and generating electricity

The invention relates to the technical field of a sanitary ware, i.e. a floor drain with functions of grinding and generating electricity. The floor drain is characterized in that a rotary millstone (4) is arranged at the lower ends of grinding blades (2) and is fixedly connected with an electric motor (12); a fixed millstone (7) is arranged at the lower end of the rotary millstone (4) and is connected with an outer box body (18) through a connecting bolt (8); and a ring-shaped diversion trench (9) is positioned between the fixed millstone (7) and electricity generating blades (15). The floordrain has the beneficial effects that due to the adoption of the grinding blades, the rotary millstone and the fixed millstone, the grinding of effluent is realized and the reliability and the carrying capacity of equipment are improved; due to the adoption of the ring-shaped diversion trench, the effluent discharge speed is accelerated and the electricity generating blades are impacted and driven to rotate at a high speed to realize electricity generation; the difficult problems that the existing drainage floor drain is easy to block and has poor reliability, so that the normal use of the existing drainage floor drain is influenced and the environment pollution is caused are well solved; the electricity generation in the draining process is realized; and the floor drain is a high-efficiency, energy-saving and environmental-friendly sanitary ware product.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Halogen-free flame-retardant wood-plastic co-extrusion composite material and preparation method thereof

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.
Owner:广州康森新材料科技有限公司 +1

Bridge type DC energy consumption device and control method

The invention discloses a bridge type DC energy consumption device which comprises at least two bridge type energy consumption modules. Each bridge type energy consumption module is formed by connecting a DC capacitor, a first energy consumption branch and a second energy consumption branch in parallel. The first energy consumption branch is formed by connecting a first power semiconductor deviceand a first energy consumption resistor in series, and a connection point of the two is led out as a first lead-out end. The second energy consumption branch is formed by serially connecting a secondpower semiconductor device and a second energy consumption resistor, and a connecting point of the two is led out as a second lead-out end. The at least two bridge type energy consumption modules areconnected in series in the same direction to form the bridge type DC energy consumption device. The invention further discloses a control method based on the bridge type DC energy consumption device.When the voltage of a DC line rises, the power semiconductor device is controlled to control the on-off of the energy consumption resistor so as to stabilize the direct-current voltage. When the DC line is short-circuited, the first energy consumption resistor and the second energy consumption resistor are connected in series to limit the direct current capacitance current. The device is high in cost performance, high in reliability and easy to implement.
Owner:NR ELECTRIC CO LTD +1

Aluminum-air battery

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.
Owner:李勇 +2

Dental implantation guide plate, drill bit and application method thereof

The invention discloses a dental implantation guide plate, a drill bit and an application method thereof, and relates to the technical field of oral implantation. The dental implantation guide plate comprises a base plate identical to gum in radian; an internal jaw bone fixing plate and an external jaw bone fixing plate are respectively arranged at two sides of the length direction of the base plate in an equidirectional extending mode; a plurality of mounting holes for enabling the drill bit to enter to-be-implanted gum are formed in the base plate; and one end, away from of the internal jawbone fixing plate, of each mounting hole is provided with a wedge groove for forming a negative pressure drainage cavity. After the implantation guide plate and the gum are fixed, the drill bit can extend into the mounting holes and drill the gum, cooling water directly enters the implantation area of the gum from the mounting holes, and then, the cooling water cools the gum; and in a drilling process, a negative pressure drainage cavity is formed for each wedge groove through a vacuum suction device in the position of the implantation guide plate, and the negative pressure drainage cavity guides watery blood and crushed bones in the implantation area to be discharged, so that the discharge velocity is higher, the residues are less, and the drilling process is fast, stable and accurate.
Owner:SHANGHAI JADE DIGITAL DENTAL LAB CO LTD

Control method and control device for display panel

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.
Owner:ORISE TECH CO LTD

Heat-dissipation type wear-resistant brake pad

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.
Owner:WUHU DONGZHENG AUTOMOTIVE IND

Rear-end-ignition pulse detonation combustion engine

InactiveCN108757220AImprove stabilityReduce output power fluctuationsGas turbine plantsIntermittent jet plantsDetonatorHeat flow
The invention discloses a rear-end large heat flow ignition pulse detonation engine system comprising an explosive mixed gas and isolation gas supply system, an ignition initiation system and detonation chamber systems. Each detonation chamber system comprises a detonation chamber inlet 1, a detonation chamber 2, an igniter 3, a spray pipe 4 and a jet spread pipe 5. Each igniter 3 is connected with a high pressure generator 6. The multiple detonation combustion chamber systems are distributed around the high pressure generator 6 circumferentially. The detonation chambers 2 work basically independently and do not disturb one another. The high pressure generator 6 comprises a high pressure generator inlet 6-1, a sparking plug 6-2, a detonator 6-3, a two-level detonation pipe 6-4, a high pressure generator shell 6-5 and a high pressure generator outlet 6-6. During work, high-temperature high-pressure gas generated by the high pressure generator 6 enters the igniters 3 through the jet spread pipes 5, and an explosive mixture is ignited.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Power battery stirring type efficient complete discharge device and discharge method

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.
Owner:BGRIMM MACHINERY & AUTOMATION TECH CO LTD

Slow-starting circuit, power panel provided with slow-starting circuit, and service single board provided with slow-starting circuit

The invention provides a slow-starting circuit, a power panel provided with the slow-starting circuit, and a service single board provided with the slow-starting circuit. The slow-starting circuit comprises a slow-starting MOS tube, a slow-starting driving control triode and a power supply circuit. The power supply circuit supplies power to the slow-starting driving control triode so as to determine the delay duration of the triode from the turn-off to the turn-on of the triode. From the power-on moment of a power input end, the power supply circuit supplies power to the triode and the triodeis turned on after the above delay duration. When the triode is turned on, the slow-starting MOS tube is turned on. From the power-off moment of the power input end, the power supply circuit stops supplying power to the triode. The triode is therefore turned off and then the slow-starting MOS tube is turned off. According to the invention, the discharge speed of the grid of the slow-starting MOS tube is accelerated. Meanwhile, the risk caused by the fact that a traditional slow-starting circuit is frequently turned on and off can be solved.
Owner:ZTE CORP

Inverter circuit and driving method thereof

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.
Owner:SOUTH CHINA UNIV OF TECH

Portable automatic discharge rod

The invention provides a portable automatic discharge rod, and belongs to the technical field of high-voltage tests, and especially relates to a portable automatic discharge rod for releasing accumulated charges of a sample. The discharge rod comprises a metal contact arranged at one end of an insulating rod, and a grounding chuck connected with the metal contact through a flexible wire. A high-voltage resistor and a current measuring device are connected in series between the flexible wire and the metal contact. The output end of the current measuring device is connected with the input end ofa control module. The output end of the control module is connected with the control end of a short-circuit switch, and the output end of the short-circuit switch is connected with the high-voltage resistor in parallel. According to the invention, the discharge loop is arranged in a mode of parallel connection of the high resistance and the short-circuit line, the current measuring device and theautomatic switching device composed of the control module and the short-circuit switch are configured, and one normally closed contact of the short-circuit switch is arranged at the high resistance side, so that the short-circuit switch has discharge current testing and automatic switching functions.
Owner:STATE GRID HEBEI ELECTRIC POWER CO LTD +2

Power compensator charging capacitor power storage management system

The invention provides a power compensator charging capacitor power storage management system, which comprises a charge and discharge unit and a monitoring unit. The charge and discharge unit comprises a charging power supply module, a super capacitor and an on-off control circuit module. The input end of the charging power supply module is connected to an input power supply; the output end of the charging power supply module is connected to the positive pole of the super capacitor; the negative pole of the super capacitor is connected to the input end of the on-off control circuit module; and the output end of the on-off control circuit module is connected to a load. The monitoring unit comprises an MCU module, a first sampling module, a second sampling module, a first isolation driving module, a second isolation driving module and a monitoring power supply module. The charge and discharge unit also comprises a power switch module. The power compensator charging capacitor power storage management system solves the problem of high power consumption due to mutual power supply of a first super capacitor voltage compensation unit and a second super capacitor voltage compensation unit in the prior art.
Owner:CHONGQING DAJI ELECTRONICS TECH

Wet brake for forklift drive axle

InactiveCN102927163AFast dischargeLow utilization rate of cooling effectFluid actuated brakesBraking discsCooling effectExchange time
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.
Owner:ANHUI HELI CO LTD

Narrow pulse width pulse laser

ActiveCN113555767ALoop inductance fastLower loop inductanceLaser detailsWave based measurement systemsCapacitanceHemt circuits
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.
Owner:TANWAY TECH (BEIJING) CO LTD

Treatment method for improving mildewproof effect of rattan

The invention provides a treatment method for improving the mildewproof effect of rattan, and relates to the technical field of rattan processing. The treatment method comprises the following steps ofpretreating, stewing, softening treating, mildewproof treating and microwave drying. According to the treatment method for improving the anti-cracking property of the rattan, the rattan is softened through pretreating and stewing treating and then further softened and subjected to mildewproof treating by adopting a special softening agent and mildewproof treating liquid, the effect is obvious, and the safety is high; and lastly, microwave drying treating is adopted, the softening agent and the mildewproof treating liquid can better permeate into the rattan and act with each other, the wood fiber tenacity of the rattan is enhanced, wood fiber forms bunchy fiber bundles, and the prepared rattan is good in tenacity and has the good mildewproof effect.
Owner:德保县广鑫贸易有限公司

Bit line cutting buffer

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.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI
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