3313 results about "Static electricity" patented technology

The invention discloses a dry-process high-temperature-resistant lithium battery diaphragm and a preparation method thereof, and relates to the technical field of lithium battery diaphragms. The specific preparation method comprises the following steps: activating and cross-linking polypropylene, polyimide, a PP-b-PI block copolymer and a cross-linking agent BIBP under the protection of nitrogen to prepare a polypropylene-polyimide matrix; after melting, adding a pre-sintered ZrO2-coated Al2O3 core-shell filler, hydroxylated boron nitride and zinc borate, and carrying out double-stage screw extrusion, ultrasonic orientation, nitrogen annealing and cold roller quenching to obtain a mixed melt; carrying out warm stretching and hot air circulation heat treatment to prepare a hard elastic crystal base film; carrying out stretching, thermal relaxation and thermal shaping to obtain a microporous base membrane; after slitting, plasma activation is carried out, epoxy silane and tetraethyl orthosilicate / polybenzimidazole aerogel precursors are sprayed, and a nano closed-pore coating is formed through pre-curing and heat shrinkage curing; and finally eliminating static electricity and rolling to obtain a finished product. The lithium battery diaphragm prepared by the invention is excellent in high temperature resistance and low in thermal shrinkage rate.

The invention relates to the field of new energy battery buffer parts, in particular to an anti-static foaming silica gel buffer part for a new energy battery and a preparation method of the anti-static foaming silica gel buffer part. The anti-static foaming silica gel buffer part is prepared by mixing and foaming anti-static mixed rubber, a foaming agent, hydrogen-containing silicone oil, an inhibitor and a platinum catalyst, the anti-static rubber compound is prepared from the following raw materials in percentage by weight: 37-50% of methyl vinyl silicone rubber raw rubber, 38-45% of white carbon black, 8-15% of anti-static filler and 1-3% of hydroxyl silicone oil; the antistatic filler is composed of an antistatic agent and a silane-containing active agent; the antistatic agent is composed of acetylene carbon black and a single-walled carbon nanotube. Under the action of the silane-containing active agent, the acetylene carbon black and the single-walled carbon nanotubes are interwoven to form a stable supporting antistatic skeleton structure, so that static electricity can be effectively conducted, static electricity accumulation is avoided, the structure is kept stable in long-term use, and the compression resilience and antistatic durability of the buffer part are ensured.

To provide an electrostatic chuck capable of suppressing the occurrence of discharge in a gas groove.SOLUTION: An electrostatic chuck 10 includes a first portion 101 including a surface 110 on which a substrate W is placed, a second portion 102 protruding further outward from the outer peripheral edge of the first portion 101 and being thinner than the first portion 101, an internal electrode 140 provided inside the second portion 102, and a gas groove 181 formed on a surface 180 of the second portion 102. In a top view, the gas groove 181 is formed at a position that does not overlap the internal electrode 140.SELECTED DRAWING: Figure 1

An electro-static discharge (ESD) protection circuit includes an ESD current discharge circuit including a first transistor, a second transistor, and a third transistor, connected in series and connected between a pad and a ground voltage, an ESD detection circuit configured to turn on the third transistor when the ESD event occurs, and a bias generation circuit configured to provide a bias voltage for turning on the first transistor to a gate of the first transistor when the ESD event occurs.

The invention discloses an electrostatic protection circuit and method, equipment and a storage medium, and relates to the technical field of electrostatic protection, and the circuit comprises a metal sheet connecting plug, an electrostatic discharge circuit, an electrostatic sampling circuit and a microcontroller; the metal sheet connecting plug is electrically connected with the metal sheet, the electrostatic discharge circuit and the electrostatic sampling circuit respectively; the electrostatic sampling circuit comprises a voltage division circuit and a conditioning circuit, and the voltage division circuit is electrically connected with the metal sheet connecting plug and the conditioning circuit; and the microcontroller is in communication connection with the electrostatic sampling circuit and the electrostatic discharge circuit and is used for performing analog-to-digital conversion on the output voltage of the conditioning circuit to obtain electrostatic voltage and controlling the electrostatic discharge circuit to be switched on or switched off. The static voltage of the operator can be acquired in real time through the microcontroller so as to accurately judge whether the static discharge of the current operator is in place or not, so that the condition of hot-line operation of corresponding equipment when the static discharge is insufficient is reduced, and the accuracy and reliability of the static discharge are improved.

The invention relates to the technical field of high-voltage electrostatic parameter measurement and circuit detection and analysis, and discloses a lampblack purifier high-voltage field intensity detection circuit method based on electrical variable measurement, which comprises the following steps: acquiring a real-time discharge current and output voltage data sequence of a detected electrostatic field load; determining a dynamic electrical stiffness parameter according to the response gradient; extracting a direct current component of the current to determine a real-time leakage conductance parameter; establishing coupling characteristics of the electrical stiffness increment and the leakage conductivity change rate, and judging impedance boundary displacement when the characteristics are mismatched; calculating the virtual displacement of the surface of the polar plate by using the discrete curvature of the electrical stiffness evolution trajectory; according to the method, the field intensity dynamic compensation is realized by sensing the change of a charge migration path, and the calculation deviation caused by medium accumulation is eliminated.

The anti-static ton barrel comprises a barrel body of a multi-layer structure, the multi-layer structure sequentially comprises an inner layer, a functional layer and an outer layer from inside to outside, and the thickness of the inner layer is 1-2 mm; the functional layer is a composite conductive layer taking polyethylene as a matrix, and double conductive networks are integrated in the functional layer; the dual-conductive network comprises a conductive network and conductive master batches, and the dual-conductive network can always maintain operation of at least one conductive mechanism; the outer layer comprises a layer structure, the tail end of the contact penetrates through the outer layer to be connected with the functional layer, the contact is electrically connected with a collector ring through a flexible copper foil or a braided wire, and the collector ring is connected with a grounding port outside the barrel body through a shielding wire; and it is ensured that the ton barrel can adapt to various working conditions when transporting high-purity electronic chemicals or pharmaceuticals, rapid static dissipation is continuously provided, and therefore the operation safety and efficiency are improved.

The invention provides a compact electrostatic and surge protection device which comprises a wafer and a plurality of device modules arranged in the wafer in parallel, the two ends of each device module are electrically connected with the upper surface and the lower surface of the wafer respectively, and the upper surface and the lower surface of the wafer are each provided with an electrode. The device module is formed by connecting M stacked device modules in series, M is a positive integer and is larger than or equal to 1, the number M of the device modules of at least one device module is not smaller than 2, the stacking direction of the device modules is perpendicular to the upper surface of the wafer and the lower surface of the wafer, at least one device module comprises at least two device modules with voltage endurance capacity, and the device modules are stacked in the stacking direction of the device modules. And a static and surge discharge channel is formed in the device module. The method has the beneficial effects that the voltage endurance capability can be remarkably improved on the premise that the wafer area and the surge protection capability are kept unchanged.

The present disclosure relates to a bulk acoustic wave (BAW) device with electrostatic discharge (ESD) protection. The disclosed BAW device includes a substrate (106), an ESD protection layer (106) over the substrate (106), a first bottom reflector (109-1) over the ESD protection layer (108), a first bottom electrode (112-1) over the first bottom reflector (109-1), a first top electrode (118-1) vertically aligned with the first bottom electrode (112-1), and a piezoelectric layer (116C) vertically between the first bottom electrode (112-1) and the first top electrode (118-1). Herein, the ESD protection layer (108) is electrically insulating and eligible to achieve at least a 400 V breakdown voltage with a 200 nm thickness. The first bottom reflector (109-1) includes a stack of alternating high acoustic impedance conductive layers (120A-E) and low acoustic impedance conductive layers (120A-E). The first bottom electrode (112-1) is electrically connected to the first bottom reflector (109-1). A breakdown voltage of the piezoelectric layer (116C) is no more than the breakdown voltage of the ESD protection layer (108).

The invention relates to an endoscope, a pressure resistance testing method of the endoscope and an endoscopic system. The endoscope comprises an endoscope shell, a signal interface module, a camera module, a traction steel wire and a lightning protection tube, wherein the camera module is connected with the signal interface module through a transmission signal line; one end of the traction steel wire is connected with a metal structure on the camera module, and the other end is connected with the lightning protection tube; the lightning protection tube and the camera module are arranged in the accommodating space; and the lightning protection tube and the signal interface module are common-grounded. According to the endoscope with the structure, static electricity can be released through the transmission signal line and the traction steel wire under the condition that the static electricity is accumulated to the breakdown voltage of the lightning protection tube, so that the static electricity protection capability of the endoscope is improved by utilizing a limited accommodating space, and meanwhile, the voltage resistance of an insulating material of the endoscope cannot be reduced.

The utility model discloses an electrode holder clamping device which comprises a fixing plate and a static arm fixedly connected to the fixing plate, and the end, away from the fixing plate, of the static arm is fixedly connected with a static electrode. A linear driving device is clamped between the fixing plates, the driving end of the linear driving device is connected with an electrode connecting rod, and one end of the electrode connecting rod is fixedly connected with a movable electrode; a guide pin is fixedly connected to the side wall of the electrode connecting rod, a guide groove is formed in the fixing plate, and the guide pin is inserted into the guide groove in a penetrating mode. The linear driving device comprises a connecting flange, a pin shaft is fixedly connected to the side wall of the connecting flange, an arc-shaped groove is formed in the fixing plate, the pin shaft is inserted into the arc-shaped groove in a penetrating mode, and the pin shaft swings along the arc-shaped groove in the welding process so that the moving electrode swings along with deflection of a workpiece to be kept coaxial with the static electrode. According to the utility model, the movable electrode and the static electrode are kept in a coaxial state before welding and during pressurized welding, so that welded workpieces are kept in good contact, and the welding quality is improved.

The invention relates to the technical field of foam box waste recovery, and discloses a foam box production waste recovery device which comprises a support, and a feeding mechanism, a crushing mechanism and an extrusion mechanism are sequentially arranged on the support in the foam moving direction. The feeding mechanism comprises a base plate obliquely arranged on the support, the two ends of the base plate are rotationally connected with conveying rollers, the two conveying rollers are connected with the two ends of a conveying belt, a material taking needle is arranged on the outer side of the conveying belt, a suspension frame is arranged on the side face of the base plate, and a material guide groove parallel to the base plate is formed in the side, close to the ground, of the suspension frame. A high-voltage electrode plate is arranged on the side, close to the material guide groove, of the base plate, and after the material taking needle moves to the position between the high-voltage electrode plate and the material guide groove, static electricity is generated at the tip end of the material taking needle. By arranging the high-voltage electrode plate, the end of the material taking needle has static electricity, the material taking needle enables small-particle foam to directionally move along the material guide groove through the electrostatic adsorption effect, and flying of the small-particle foam is avoided.

A physiological signal monitoring device includes a base and a transmitter. The base is provided with a biosensor. The transmitter is removably coupled to the base, and includes a casing and an electrostatic-discharge protective unit. The casing has a socket for the biosensor to be removably inserted thereinto. The electrostatic-discharge protective unit is disposed to at least surround the periphery of the socket to dispel static electricity when electrostatic discharge occurs.

The invention discloses a method for staged purification of furnace sealing flue gas of a pre-pumping pump and collaborative removal of pollutants, relates to the field of metallurgical industry, and aims to solve the problems of poor adaptation of fixed parameters, complex multi-pollutant treatment system and high energy consumption cost in the prior art. Detecting parameters in real time and regulating and controlling the injection amount and turbulent flow velocity of the modified quicklime powder to finish pretreatment; then entering a primary purification tower, dynamically optimizing the spraying liquid-gas ratio and the electrostatic voltage, and removing SO2 and dust in a targeted manner; then, through a secondary reaction tower, the ozone generation amount and the modified activated carbon injection amount are accurately controlled, and NOx and VOCs are synergistically and deeply removed; and finally, detecting the pollutant concentration through a tail end refining device, and realizing closed-loop emission in combination with standard judgment and a reflux mechanism. Dynamic matching of process parameters and flue gas working conditions is achieved, multiple sets of independent equipment are not needed, it is guaranteed that emission stably reaches the standard, and economical efficiency and practicability are outstanding.

The invention provides a chip electrostatic protection circuit and a protection method thereof.The chip electrostatic protection circuit comprises an electrostatic transmission module, a clamping module and a discharge protection module, electrostatic energy of an input port and an output port of a chip is transmitted through the electrostatic transmission module, and the clamping module is connected with the electrostatic transmission module and a power port; static energy is discharged through the clamping module, when chip control voltage is input into the chip input and output port, the clamping module is prevented from being mistakenly conducted through the discharging protection module, and on the basis of a reverse series connection structure of a diode in the static transmission module and a Schottky diode in the clamping module, the clamping module is prevented from being mistakenly conducted. And DC isolation between the input and output ports of the chip and the power port is realized. According to the protection circuit provided by the invention, the DC isolation of the chip input / output port and the power supply port is realized through the Schottky diode, the power-on time sequence requirement is avoided, and the voltage input range is expanded; in order to prevent the static discharge access from being opened mistakenly when the chip works normally, the discharge protection module controls the control voltage of the static discharge access.

The invention provides a glass substrate static electricity eliminating and packing paper grabbing device which comprises a collecting assembly, a conveying assembly and a loading unit are arranged on the front side of the collecting assembly, a guiding and conveying unit is erected on the top of the collecting assembly, and a first mechanical arm and a second mechanical arm are assembled at the driving end of the guiding and conveying unit; an adsorption assembly is installed at the output end of the second mechanical arm in a butt joint mode, a feeding component is installed at the output end of the first mechanical arm in a butt joint mode, an electrostatic elimination unit is fixedly installed in the feeding component, clamping units are assembled on the two sides of the top of the feeding component, and the clamping units extend to the front side of the feeding component. Positive and negative static charges at the interface can be quickly neutralized through the air blowing nozzles uniformly distributed on the ion air pipe, the electrostatic adsorption force between the packing paper and the base plate is thoroughly damaged, compared with a traditional local static elimination mode, the neutralization efficiency is remarkably improved, instant separation of the packing paper and the base plate can be achieved, and manual intervention is not needed in the separation process.

The utility model relates to the field of conducting rings, in particular to a conducting ring for an oil cooling shaft, which comprises a conducting ring casting, the conducting ring casting is of an annular structure, the inner wall of the conducting ring casting is fixedly connected with a mounting ring, carbon fiber yarns which are arranged at equal intervals are mounted on the mounting ring, and shaft static electricity is transmitted to the conducting ring casting through the carbon fiber yarns. According to the utility model, shaft static electricity generated by the motor rotating shaft is transmitted to the conductive ring casting by using the carbon fiber yarns and is further transmitted to the motor shell, so that the shaft static electricity is effectively prevented from being accumulated on a bearing or other conductive parts, the risks of local overheating and bearing abrasion are reduced, the operation reliability of the motor is remarkably improved, and the service life of the motor is remarkably prolonged. Through the arrangement of the rubber oil baffle plate, not only is excessive engine oil prevented from being in contact with the carbon fiber yarns, but also the rubber oil baffle plate is convenient to replace and clean through the detachable locking nut and positioning block structure, and the maintenance cost and time are reduced.

A rotatable drum is provided for supporting a substrate. The rotatable drum includes a curved drum surface for supporting the substrate. The curved drum surface includes a dielectric portion and an electrode coupled to a power source. The electrode is electrically coupled to the curved drum surface and capable of chucking and dechucking the substrate from the curved drum surface at one or more circumferential segments of the curved drum surface.

The utility model discloses an electrostatic vacuum plate structure and a filling type electrostatic vacuum plate, and relates to the field of vacuum plates, the electrostatic vacuum plate structure comprises an upper vacuum plate and a lower vacuum plate, the space between the two vacuum plates is in a vacuumized state to form a vacuum cavity, and the two ends of the vacuum cavity are subjected to heat edge sealing treatment; the upper vacuum plate, the lower vacuum plate and the sealing edges at the two ends are attached through flexible insulating aluminum plastic films containing PTFE layers; inner-layer aluminum foils are pasted on the upper vacuum plate and the lower vacuum plate in the vacuum cavity respectively, the two inner-layer aluminum foils sense same-polarity negative static electricity, external air pressure is resisted through electrostatic repulsive force, and the thickness of the vacuum cavity is maintained to be in the preset size. Compared with a traditional glass fiber vacuum plate, heat transfer of an inner core material is avoided, the heat conductivity is reduced, the thickness of the vacuum plate can be reduced to be within 0.5 mm, high-performance heat-insulation ultrathin performance is achieved, a hard plate is changed into a flexible film material, and the fitting adaptability of a product on different surfaces is greatly improved.

The invention relates to the technical field of IMR process membrane production equipment, in particular to a membrane dust removal device for an IMR process, which comprises a main body assembly, a base, a conveying bed and a mounting frame, the conveying bed and the mounting frame are arranged at the end part of the base, and a driving motor and a transmission box are further arranged on the outer wall of the mounting frame; the dust removal assembly comprises a cleaning roller, the cleaning roller is arranged at the end of the conveying bed, an ion bar is further arranged on the outer wall of the cleaning roller and used for eliminating static electricity, and a dust collection component is further arranged at the end of the conveying bed and installed at the other end of the cleaning roller; the cleaning roller is in floating installation under the action of the first elastic piece through cooperation of the moving block, the sliding block and the moving guide rail, and the cleaning roller can adapt to surface fluctuation of the diaphragm and keep constant micro-pressure contact; strong negative pressure is formed in the adsorption roller through the air supply pipe and the Venturi pipe and is conducted to the surface of the non-woven fabric through the negative pressure cavity and the adsorption holes, non-contact adsorption of the membrane is achieved, and it is ensured that dust is efficiently captured and the membrane is not damaged.

The invention specifically relates to a multi-parameter state monitoring and fault diagnosis system for an intelligent circuit breaker, and relates to the technical field of state monitoring and fault diagnosis of power equipment. A surface / bulk charge and electroluminescent optical monitoring module; a mechanical-electrical performance correlation analysis module; and a diagnosis evaluation module. According to the invention, the dielectric property micro-change module adopts a low-frequency superposition excitation and partial discharge fingerprint spectrum fusion technology, and can sensitively capture dielectric micro-change of gradual deterioration such as damp and uniform aging; the surface / body charge and electroluminescent module performs mixed optical imaging through a non-contact electrostatic potential array and PMT / APD, and accurately recognizes surface charge accumulation and early electrical tree growth; the mechanical-electrical association module quantifies thermal mechanical stress accumulation and impact vibration influence based on FBG strain monitoring and multi-physics field coupling modeling.

An electrostatic chuck 10 includes: a dielectric substrate 100 that includes a first part 101 including a surface 110 as a placement surface, and a second part 102 thinner than the first part 101 projecting from an outer peripheral end of the first part 101 further toward an outer peripheral side; a first internal electrode 140 provided inside the first part 101; a second internal electrode 150 provided inside the second part 102; a first power supply member 401 that is provided on a surface 120 of the dielectric substrate 100 and electrically connected to the first internal electrode 140; and a second power supply member 402 that is provided on the surface 120 of the dielectric substrate 100 and electrically connected to the second internal electrode 150. Both of the first power supply member 401 and the second power supply member 402 are provided in the first part 101 of the dielectric substrate 100.

The invention belongs to the technical field of digital printing heat transfer printing materials, and particularly relates to a static-free loose-powder DTF transfer printing film and a preparation method thereof. The invention aims to solve the problem of contradiction among antistatic function, ink adsorption and peel strength of the current DTF transfer film. According to the invention, the ionic liquid antistatic agent coated by the polymer microcapsule is dispersed in the water-based resin adhesive to form the lower antistatic network structure layer; meanwhile, the crystallization behavior of the crystalline polyester hot melt adhesive resin taking bio-based 2, 5-furandicarboxylic acid as a rigid component is regulated and controlled through surface modified boron nitride nanosheets, a phase separation curing process is utilized, so that an antistatic network stably exists at the lower part of the coating, and hot melt adhesive resin microcrystals are selectively enriched on the outermost surface of the coating; and a thermally induced phase change bonding layer is formed, so that no static electricity disturbs powder in the printing and powder scattering processes.

The invention discloses an electrostatic dust collection module and an air conditioner, and relates to the technical field of air conditioning equipment. The electrostatic dust collection module comprises a mounting shell, a support and at least two electrode parts; an air passing space is formed in the mounting shell, the support is arranged in the air passing space and extends in the first direction, and limiting structures are formed on the two opposite sides of the support in the air passing direction; the electrode pieces are arranged in the air passing space, the at least two electrode pieces comprise a positive electrode piece and a negative electrode piece, and the positive electrode piece and the negative electrode piece are arranged on the two opposite sides of the support in the air passing direction respectively and connected to the corresponding limiting structures; the electrode piece comprises a plurality of electrode bodies extending in the second direction, the surfaces of the electrode bodies are covered with insulating layers, and the electrode bodies of the positive electrode piece and the electrode bodies of the negative electrode piece are alternately distributed in the first direction at intervals. The technical scheme provided by the invention aims to guarantee uniform distribution of an electric field, avoid electric arcs, avoid local electric field loss and improve the dust removal effect.

An ESD (electrostatic discharge) protection device includes a first enhanced HEMT (High Electron Mobility Transistor) electrically connected between a protected node and a ground node, and an RC network electrically connected between the protected node and the ground node. A time constant of the RC network is set such that a gate of the first enhancement mode HEMT is pulled up to turn on the first enhancement mode HEMT for a positive transient pulse at the protected node having a rise time less than the time constant of the RC network. The first enhanced HEMT is configured to shunt a protected node to a ground node when turned on.

The invention belongs to the technical field of touch screen static suppression and signal recovery, and relates to an active touch screen static suppression and signal synchronous recovery system, which comprises a static detection module, an instruction generation module, a charge neutralization module, an environment confirmation module, a parameter generation module, an inverse waveform generation module and a signal output module, the electrostatic detection module is used for generating an initial electrostatic disturbance signal; the instruction generation module is used for generating a fixed-point neutralization instruction; the charge neutralization module is used for forming an instantaneous local neutralization electric field; the environment confirmation module is used for generating an environment confirmation signal; the parameter generation module is used for generating feed-forward compensation parameters; the anti-phase waveform generation module is used for generating an anti-phase pulse waveform; the signal output module is used for generating an original touch signal; according to the invention, the problem that it is difficult to realize reliable identification, source elimination and signal synchronous recovery of electrostatic interference is solved.

An integrated circuit including: two or more substrates stacked one over another and including first and second substrates having a P-type doping, and third and fourth substrates having an N-type doping; the first substrate including a first dielectric isolation structure electrically separating the first substrate into first and second portions; the second substrate including a second dielectric isolation structure electrically separating the second substrate into first and second portions a set of electrical components on one or more of the two or more substrates, and configured to form a circuit, the circuit comprising an internal ground node; a ground reference rail electrically connected to the first substrate and the second substrate and free from being electrically connected to the third substrate and the fourth substrate; and an electrostatic discharge (ESD) protection circuit electrically coupled between the internal ground node and the ground reference rail.

The invention discloses a humidity control method and system of a liquid-cooled battery cabin, a medium and a program product, and relates to the technical field of liquid-cooled battery cabins, and the humidity control method comprises the following steps: respectively collecting an environment temperature and a dew point temperature in the liquid-cooled battery cabin, and a water outlet temperature and a water return temperature of a cooling liquid; the environment temperature, the outlet water temperature and the return water temperature are compared; the lowest temperature in the environment temperature, the outlet water temperature and the return water temperature serves as the dehumidification starting temperature; calculating a humidity control temperature according to the dehumidification starting temperature and the dew point temperature; and the dehumidifier is controlled to be turned on or turned off according to the relation between the humidity control temperature and a preset temperature threshold value. According to the technical scheme, condensate water can be effectively prevented from being formed, it is guaranteed that the temperature and humidity in the battery compartment are kept within the safe range, then the working energy efficiency of the dehumidifier is improved, battery performance reduction and static electricity accumulation are avoided, the service life of a battery is prolonged, and the operation safety of the battery compartment is guaranteed.

To provide a charging roll for electro-photographic apparatuses, the roll having an excellent charging property even if the discharge amount is decreased.SOLUTION: A charging roll 10 for electro-photographic apparatuses includes a shaft body 12, an elastic body layer 14 formed on the outer peripheral surface of the shaft body 12, and a surface layer 16 formed on the outer peripheral surface of the elastic body layer 14. The elastic body layer 14 contains non-polar rubber, polar rubber, and carbon black, a dielectric constant thereof is 7 to 29, and a resistance value thereof is 6.0×104 Ω to 5.0×106 Ω, and the surface layer 16 contains fluororesin and (meth) acrylic resin, a dielectric constant thereof is 10 to 22, and a resistance value thereof is 1.2×104 Ω to 8.8×105 Ω.SELECTED DRAWING: Figure 1

The invention discloses a multi-stage filtering structure of an ionic wind air purifier, and relates to the technical field of air filtering equipment. The air purifier comprises a purifier body, a supporting frame is arranged in the purifier body, and an ionic wind dust collection polar plate is installed in the supporting frame; a plurality of layers of filtering assemblies are arranged in the supporting frame. By adopting a multi-layer composite structure composed of the primary filter layer, the high-pressure ionization area, the ozone catalytic layer and the dust collection area, efficient cooperative treatment of different pollutants in air is achieved, air flow firstly passes through the primary filter layer to intercept large-particle dust, then fine particles are electrified and partially sterilized in the high-pressure ionization area, and therefore the air purification effect is achieved. Generated ozone by-products can continue to be deeply sterilized and disinfected, electrified airflow immediately passes through a special ozone catalytic layer subsequently, ozone can be efficiently decomposed into harmless oxygen, and the technical problem that ozone exceeds the standard in a traditional electrostatic dust collection technology is solved.