1003results about "Corona discharge" patented technology

An electrophotographic member, comprising: a support member having a conductive outer surface; and a conductive layer disposed on an outer surface of the support member, wherein the conductive layer comprises a matrix comprising a first rubber, and a plurality of domains dispersed in the matrix, volume resistivity of the matrix is 1.00×1012 Ω·cm or less, the plurality of domains comprise at least one domain A, and the domain A satisfies specific conditions, in a case where impedance of the electrophotographic member is measured by applying specific AC voltage while changing frequency in a range of 1.0×10−2 to 1.0×107 Hz and the specific plotting is done, a slope at a specific frequency is −0.80 to −0.30, and the impedance in a specific frequency is 1.00×103 to 1.00×107Ω.

The invention relates to the technical field of lightning protection, in particular to a positioning clamp for an ancient building lightning protection device, which comprises a mounting seat, a plurality of support frames are rotatably connected to the mounting seat, a cornice clamp mechanism is rotatably connected to one end of each support frame, and a protective seat is movably clamped to one support frame. A mounting frame is rotationally connected in the protection seat, a lightning rod is rotationally connected in the mounting frame, a retracting and releasing mechanism is rotationally connected to the inner wall of one end of the mounting frame, and an arc-shaped brush plate is arranged in the mounting frame in a sliding fit mode. The lightning protection device is installed on the ancient building pavilion, has higher adaptability, stability and attractiveness, can accurately adapt to a cornice structure, avoids damage to a building, improves installation convenience, improves safety and stability of the lightning protection device, and ensures the lightning protection effect of the pavilion and building integrity.

A charging roller comprises a conductive shaft, an elastic body layer, and a surface layer. The surface layer contains a binder resin and conductive particles. The binder resin contains only a thermoplastic resin. The thermoplastic resin has a water contact angle of not less than 40° but less than 180°. The conductive particles contain first conductive particles and second conductive particles. The first conductive particles are metal oxide particles. A content of the first conductive particles in the surface layer is not less than 15.0 parts by mass but not more than 200.0 parts by mass with respect to 100.0 parts by mass of the binder resin. A particle size distribution of the conductive particles has at least one peak within a range of not less than 0.01 μm but not more than 1.00 μm.

The application relates to the technical field of image forming, in particular to a conductive component, a process cartridge and an image forming device. The conductive component is arranged on the process cartridge or the image forming device. The process cartridge is detachably mounted into the body of the image forming device. The mounting direction of the process cartridge is a first direction. The conductive component comprises: a plurality of conductive pieces, the conductive pieces are used for realizing the electrical connection between the power supply piece of the image forming device and the load piece of the process cartridge, and at least one load piece comprises a roller piece; the conductive piece comprises an electric contact point, the electric contact point is used for contacting the power supply piece to access the power supply; wherein at least two of the plurality of electric contact points are arranged at intervals along a second direction; the second direction intersects with a third direction and the first direction; and the third direction is parallel to the axial direction of the roller piece. In conclusion, the technical scheme provided by the application can reduce the number of electric contact point scratches and improve the power supply stability.

A charging roller includes a conductive shaft, an elastic body layer formed on an outer periphery of the conductive shaft, and a surface layer formed on an outer periphery of the elastic body layer. The surface layer contains a binder resin and conductive particles. The binder resin contains only a thermoplastic resin. The conductive particles contain first conductive particles and second conductive particles. The first conductive particles are carbon black particles. A particle size distribution of the conductive particles has at least one peak within a range of not less than 0.01 μm but not more than 1 μm. A water contact angle x of the thermoplastic resin and a content y of the first conductive particles in the conductive particles satisfy the following expressions: 40≤y, y≤(800 / 27)x+(280 / 9), and y≤−8x+200.

A charging roller includes a conductive shaft, an elastic body layer formed on an outer periphery of the conductive shaft, and a surface layer formed on an outer periphery of the elastic body layer. The surface layer contains a binder resin and conductive particles. The binder resin contains only a thermoplastic resin. The thermoplastic resin has a water contact angle of not less than 40° but less than 180°. The conductive particles contain first conductive particles and second conductive particles. The first conductive particles are metal oxide particles. A content of the first conductive particles in the surface layer is not less than 10.0% by mass but not more than 55.0% by mass. A particle size distribution of the conductive particles has at least one peak within a range of not less than 0.01 μm but not more than 1.00 μm.

The invention provides a spark discharge device and a spark discharge accurate control method, and relates to the technical field of spark discharge. The device comprises a pair of spark electrodes, a rotary switch, a capacitor and a power supply, wherein a gap exists between working ends of the spark electrodes; the spark electrode, the rotary switch and the capacitor are connected in series to form a discharging loop, and the capacitor and the power supply are connected in series to form a charging loop; the rotary switch comprises a rotatable rotor and a toothed bar connected with the rotor; a contact is arranged in the discharge loop, and when the contact is in contact with the toothed bar, the discharge loop is conducted. According to the invention, the discharge loop is rapidly switched on and switched off through the rotary switch, various parameters of spark discharge can be accurately and stably controlled, so that the spark discharge is not influenced by the environment, such as spark breakdown voltage, discharge frequency and the like, and the spark discharge can be prevented from being converted into corona, glow or arc discharge, for example, the spark discharge can be normally generated under low air pressure.

The invention relates to a construction method for a grounding down lead system of a new energy storage power station, which is based on the construction of a main grounding grid and is used for reasonably connecting a lightning rod, a framework, a lightning arrester bracket, a main transformer, a tubular bus, a GIS (Gas Insulated Switchgear) and a brim voltage-sharing belt in the energy storage power station with the main grounding grid so as to exert the function of protecting related electrical equipment in the energy storage power station. Comprising the following steps that S1, a lightning rod, a framework, a lightning arrester support, a main transformer, a tubular bus, a GIS and a brim voltage-sharing belt are connected to a main grounding grid; s2, providing centralized grounding devices, and respectively arranging the centralized grounding devices at positions adjacent to a lightning rod, a main transformer and a tubular bus; on the basis that related electrical equipment of the energy storage power station is connected to the main grounding grid, the centralized grounding device is arranged for the lightning rod, the main transformer and the tubular bus, so that the current dispersing area is increased, the grounding efficiency of a grounding down lead system of the energy storage power station is improved, the potential difference among multiple equipment of the energy storage power station is reduced, and point position balance of the whole station is ensured; and safe operation of electrical equipment is ensured.

The invention provides an active lightning triggering device and method for a fan blade. The device comprises two copper rods with tip heads, a protection circuit, a boost lightning circuit and a metal shielding net. The two copper rods are arranged in parallel at the blade tip of the fan blade, one copper rod is directly grounded, and the other copper rod is connected with the boost lightning circuit through the protection circuit; the boost lightning guide circuit comprises a charging capacitor, an inductor, a high-frequency switch and a diode and is used for sensing positive high voltage and dynamically adjusting resonance characteristics so as to enhance voltage difference between thundercloud and a copper rod and trigger uplink and downlink leader to form a discharge channel; the metal shielding net wraps the blade tip and is connected with the grounding device to ensure that lightning current is preferentially discharged through the copper rod, and the blade tip structure is prevented from being damaged. According to the method, environmental meteorology and blade attitudes are monitored in real time, a boosted circuit is started in combination with threshold judgment, and control parameters are optimized by using a remote monitoring platform, so that intelligent lightning protection management is realized. According to the device, by actively exciting corona discharge and accurately guiding a lightning path, the lightning protection efficiency of the blade is remarkably improved, the damage risk of a non-lightning-receiving area is reduced, meanwhile, a maintenance decision is supported through datamation operation and maintenance, and the device is suitable for wind generating set protection in a thunderstorm area.

The utility model belongs to the technical field of electric power steel tube pole tower lightning protection, and particularly relates to an electric power steel tube pole tower with a lightning protection function, which comprises a lightning protection component, a support frame component is mounted at the bottom of the lightning protection component, and a base damping component is mounted at the bottom of the support frame component; the lightning protection assembly comprises a top lightning arrester, the bottom of the top lightning arrester is fixedly connected with an insulating supporting plate, the interior of the top lightning arrester is fixedly connected with a top connecting wire, the side of the top connecting wire is in threaded connection with a second bolt, and the side of the top connecting wire is provided with an insulating hoop. The end part of the insulating hoop is fixedly connected with a first nut; the multi-stage lightning arresters are arranged at different heights of the steel tube pole tower, so that lightning current can be received in a graded manner and guided to the ground step by step, direct impact of the lightning current on the pole tower is reduced, and the service life of the steel tube pole tower is prolonged.

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

Provided is a method for manufacturing a regenerated elastic roller, the method comprising a contaminant removal step for removing contaminants affixed to the outer surface of an elastic roller that has a support having an electroconductive outer surface and an elastic layer on the outer surface of the support, wherein the method for manufacturing a regenerated elastic roller is characterized in that the outer surface of the elastic layer contains at least a first rubber and a second rubber, the glass transition temperature Tg1 (°C) of the first rubber and the glass transition temperature Tg2 (°C) of the second rubber satisfy the relationship Tg1 > Tg2 or Tg2 > Tg1, and the contaminant removal step includes a step A for removing the contaminants in a state in which Ts satisfies the relationship Tg2 < Ts < Tg1 or Tg1 < Ts < Tg2, where Ts is the temperature (°C) of the outer surface of the elastic roller to which the contaminants have become affixed.

The present application relates to the technical field of gas laser, in particular to a kind of adjustable corona drive creeping spark preionization structure for gas laser.It includes main discharge part and preionization part;Main discharge part and preionization part share high voltage source and thyratron switch;Preionization part includes surface discharge unit by electrically conductive metal ring, ceramic tube and ground electrode, and adjustable capacitor Cs1 in series in preionization discharge branch;Preionization discharge branch is parallel with main discharge loop and energy storage is independent of each other.In the present application, by constructing independent preionization discharge branch, introducing adjustable capacitor as core control element and realizing electrification continuous regulation, effectively solve the problems such as low regulation accuracy, poor dynamic response and limited system integration reliability caused by relying on mechanical spacing adjustment in traditional structure.

To provide a conductive member that is excellent in color streak generation prevention properties.SOLUTION: A conductive member has a particulate conductive part having an area ratio of 15 area% or more, which is measured when a conductive point on its surface is measured using a current simultaneous measurement atomic force microscope. The conductive member has the particulate conductive part having an average area of 0.05 μm2 or more, which is measured when the conductive point on its surface is measured using the current simultaneous measurement atomic force microscope.SELECTED DRAWING: Figure 1

To provide an image forming system and an image forming method that achieve both prevention of abrasion of an organic photoreceptor and reduction of attachment on the organic photoreceptor.SOLUTION: An image forming system of the present invention uses an organic photoreceptor, and a toner for electrostatic charge image development including toner particles. The organic photoreceptor has a protective layer containing curable resin. The toner particle has a shape in which at least one type of lubricant particles and at least one type of non-lubricant particles are contained in or attached onto surfaces of a plurality of convex parts or a surface between the plurality of convex parts on a toner base particle having the plurality of convex parts on the surface. An average interval D1 between the convex parts on the surfaces of the toner base particles, a median diameter D2 of the lubricant particle having the smallest median diameter, and a median diameter D3 of the non-lubricant particle having the largest median diameter satisfy the following formula (1). Formula (1) D3≤D1≤D2.SELECTED DRAWING: None

To provide a coating film forming method capable of forming a coating film free from a mottled pattern.SOLUTION: A coating film forming method for forming a coating film by discharging droplets of a coating liquid to a cylindrical member to be coated by a liquid discharger in which a plurality of nozzles are arranged, the method comprising: discharging droplets from the liquid discharger while moving the liquid discharger in an axial direction of the member to be coated so that an arrangement direction of the nozzles becomes an axial direction of the member to be coated; The liquid discharge means is moved a plurality of times between one end side and the other end side of the member to be coated, and in one movement of the liquid discharge means from the one end side to the other end side or from the other end side to the one end side of the member to be coated, a gradient in which a thickness of a coating film decreases from a coating start position toward a coating end position on the member to be coated is formed.SELECTED DRAWING: Figure 1

The invention relates to a device for ionization of a fluid, wherein the device (102, 202, 302, 402, 502, 602, 702) comprises an elongated container (4, 104) adapted for conveying the fluid in a gaseous state, a fluid ionizing arrangement (18, 28) for ionizing the fluid, at least one fluid flow directing unit (106, 206) arranged in the container, wherein the at least fluid flow directing unit comprises at least one peripheral fluid flow guide channel (108, 118, 120) having an outlet (110) circumferentially displaced relative to an inlet (108) for turning a first part of an incoming fluid flow, and a central fluid flow guide channel (114) with an extension substantially in parallel with the longitudinal direction of the elongated container for guiding a second part of the incoming fluid flow substantially in the longitudinal direction of the elongated container.

The present invention relates to a method for ionizing a fluid, in which a first pair (18) of electrodes (20, 22) are arranged opposite each other and at a distance from each other within a container (4), and the method includes the steps of conveying a gaseous fluid within the container through the first pair of electrodes in a fluid flow, charging the electrodes (20, 22) at the first pair of electrodes so that a discharge occurs, and supplying the fluid flow to the inlet of the container in pulses.

The invention relates to the technical field of lightning protection grounding, in particular to a power line carrier communication lightning protection grounding mechanism which comprises fixing assemblies arranged on the two sides of the outer surface of a bottom table, a cleaning assembly arranged on the top of the outer surface of the bottom table and adsorption assemblies arranged on the two sides of the outer surface of the bottom table. The fixing assembly comprises a plurality of fixing blocks, sliding blocks are slidably embedded in the multiple fixing blocks, inserting rods are fixedly connected to one sides of the outer surfaces of the multiple sliding blocks, the multiple inserting rods are slidably embedded in the bottom table, limiting cylinders are fixedly connected to the tops of the outer surfaces of the multiple fixing blocks, and the cleaning assembly comprises a supporting frame. The invention aims to provide the power line carrier communication lightning protection grounding mechanism, the lightning rod can be fixed and installed, the lightning protection grounding mechanism is easy to disassemble, assemble and maintain, so that the high-altitude operation time is shortened, the high-altitude operation risk is reduced, automatic rust removal can be realized, and manual pole climbing for rust removal is not needed.

To provide an air cooling clothing blower which improves usability.SOLUTION: An air cooling clothing blower 4 comprises a fan case 8 in which an air inflow port is provided at one end opening side (outside a clothing body) of a cylindrical wind tunnel 5, and an air discharge port 7 is provided at the other end opening side (inside the clothing body) of the wind tunnel 5, a fan disposed inside this fan case 8, a motor that rotatably drives this fan, an attachment flange 11 disposed to extend toward this wind tunnel 5 in its outer peripheral direction at the wind tunnel 5 outer periphery portion of the fan case 8, and an attachment ring 12 which is detachably mounted at the air discharge port 7 side of the attachment flange 11 at the wind tunnel 5 outer periphery part of the fan case 8 and uses the attachment flange 11 to sandwich the air cooling clothing from its front and back surfaces, and an ion generating device is provided at the attachment ring 12.SELECTED DRAWING: Figure 3

The image forming system includes: an image holding body that rotates; a charging unit that rotates while being in contact with the image holding body and charges the surface of the image holding body by applying a charging bias voltage; a pressing member that presses the charging portion against the image holding body so as to create a bite width; a developing unit that develops a latent image formed on the surface of the image holding body with a toner; and at least one processor that performs a process in which an absolute value of a surface potential of the image holding body charged by the charging portion is lower than an absolute value of a developing potential of the developing portion; the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part instantly discharges before and after the nip width of the image holding body and does not discharge at the center of the nip width, and the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part does not discharge at the center of the nip width. The absolute value of the surface potential of the image holding body is higher than the absolute value of the developing potential.

The application relates to the technical field of building lightning protection, in particular to a lightning protection device for fabricated buildings, which comprises a fabricated building, a support assembly is installed at the top of the fabricated building, a lightning attracting device is installed at the top of the support assembly, a lightning guiding assembly is installed on one side of the lightning attracting device, and the lightning guiding assembly is installed on the outer side of the fabricated building. In the application, the support assembly, the lightning attracting device, the insulating block, the lightning protection grounding needle, the mounting assembly, the mounting plate, the threaded head, the reinforcing assembly, the lightning guiding assembly, the connector, the lightning protection grounding belt and the fixer are arranged, when the lightning protection grounding needle is in the lightning stroke, the lightning protection grounding needle can transfer the lightning to the ground through the connector, the wire, the lightning protection grounding belt and the grounding device. Due to the design of the insulating block and the fixer, no hole needs to be punched when the lightning protection device is installed, therefore, the connection part of the lightning protection device and the fabricated building is not conductive, the lightning cannot affect the fabricated building, and the safety of the fabricated building is improved.

To stabilize the distribution of electric charges in residual toner at a normal polarity.SOLUTION: An image forming apparatus comprises an image carrier, a developing member, a pre-transfer member, and a brush member that is in contact with a surface of the image carrier at a contact part downstream of a transfer part and upstream of a developing part in the direction of rotation of the image carrier, and the image forming apparatus recovers a toner not transferred to a transfer target body by using the developing member. In an electrification system, the toner is located on the same side as a normal electrification polarity of the toner with respect to the brush member. The maximum value of contact pressure at the contact part is 0.7 gf / mm2 or more and 3.5 gf / mm2 or less. The maximum contact area ratio at the contact part is 18% or more and 74% or less. The Clark-Evans index of the brush member at the contact part is 1 or more.SELECTED DRAWING: Figure 2

To provide a cleaning body that prevents dirt from adhering to the surface of the object to be cleaned, and that maintains its ability to adhere to the object to be cleaned for a long period of time. [Solution] The cleaning body 100 has a core body 102, a foamed elastic layer 104, and an adhesive layer 106, wherein the 25% compressive load of the foamed elastic layer 104 in the high-action region is 1 / 2 or less of the 25% compressive load of the foamed elastic layer 104 in the low-action region.

The utility model discloses a protective device for automatic monitoring equipment in a station area, which relates to the technical field of monitoring equipment protection and comprises a stand column fixedly arranged on the ground, the stand column is located on one side of the monitoring equipment, and a support horizontal rod is fixedly arranged on one side, close to the monitoring equipment, of the stand column. A mounting rod is fixedly arranged at the end, away from the stand column, of the support horizontal rod, a protective cover is fixedly mounted at the bottom end of the mounting rod through a flange and a connecting bolt, and the protective cover is located above the monitoring device. The whole protection device is not in contact with the monitoring equipment, normal work of the monitoring equipment is not interfered while the protection function of the protection device is played, 360-degree dead-corner-free data acquisition of the monitoring equipment is achieved, the protection cover is located over the monitoring equipment, the monitoring equipment is protected in severe weather, and the equipment is prevented from being damaged.

The present application provides a housing. The housing includes a first housing chamber, a housing, and a discharge portion. The first housing chamber houses an object (OB). The housing is disposed outside the first housing chamber. The housing forms a flow path that communicates with an inflow portion and an outflow portion. The inflow portion allows air to flow in. The outflow portion allows air that has flowed in from the inflow portion to flow out. The discharge portion includes an electrode. The electrode is disposed in the flow path between the inflow portion and the outflow portion.

The utility model discloses a seismic station earthquake monitoring equipment lightning protection device comprising a protection frame, the top of the protection frame is provided with a lifting device, the top of the lifting device is fixedly connected with a lightning rod, the side wall of the lower end of the lightning rod is fixedly connected with a connecting block, the connecting block is fixedly connected with a wire, and the wire is fixedly connected with a lightning rod. The lead leads the current to a safe position, two sides of the protection frame are provided with supporting devices, and the supporting devices support the ground, and the utility model relates to the technical field of lightning protection. According to the lightning protection device for the seismic monitoring equipment of the seismic station, the lightning rod and the lifting device are arranged at the top of the protection frame, the height of the lightning rod can be conveniently adjusted to adapt to different environments and change of equipment layout, the flexibility and applicability of the lightning protection device are improved, and the design of the supporting device provides stable support; and the device can be firmly fixed on the ground through the spiral blade, so that the stability of the lightning protection device is enhanced.

The utility model discloses a lightning rod damping support for a circuit iron tower, which relates to the technical field of electric power facility protection and comprises a base, a protection box is arranged on the outer wall of the base, and a lightning rod is mounted at the top of the base. Vibration energy is transmitted to enable the first damper and the buffer spring to be compressed, the vertical included angle between the first shear fork plate and the second shear fork plate is increased, the originally compressed reset piece is stretched due to the change of the included angle between the shear fork plates, and the reset piece does not rapidly reset to return to the compression state; the reset piece generates restoring force during resetting to drive the vertical included angle between the shear fork plates to be reduced, so that the first damper and the buffer spring are synchronously reset; the first damper and the buffer spring cooperate to accurately absorb and dissipate energy in each stage of vibration, and on the other hand, the included angle of the shear fork plate is flexibly changed and the reset piece is reliably reset, so that the damping structure quickly returns to the optimal state after the vibration and is stable and efficient, the continuous vibration coping capacity is enhanced, and the stability of the lightning rod is guaranteed.