234 results about "Ferrite core" patented technology

The invention belongs to the technical field of particle accelerators, and discloses a nonlinear impact magnet based on a nanocrystalline magnetic material and a matched power supply system. The nonlinear impact magnet comprises a magnetic core and a magnet exciting coil assembly, the magnetic core comprises magnetic poles and a magnetic yoke; the magnetic pole and the magnet yoke are both of a fully-symmetrical annular structure, and the magnet yoke is arranged on the periphery of the magnetic pole. The magnetic pole comprises N same magnetic pole units, N is 4, 6 or 8, and the magnetic pole is made by laminating nanocrystalline strips; and the excitation coil assembly is wound outside each magnetic pole unit. Compared with a traditional silicon steel sheet or ferrite magnetic core, the magnet provided by the invention can improve the uniformity of a magnetic field, and the magnetic pole made of the nanocrystalline strip with ultrahigh magnetic conductivity and low coercive force has stronger magnetic field uniformity and low disturbance characteristic; and the design requirement of the STCF clash ring off-axis injection system for low disturbance of the circulating beam bunch can be better met.

The utility model discloses a ferrite magnetic core grinder, which relates to the field of ferrite magnetic core grinding and comprises a working platform, a grinding roller for grinding a magnetic core is mounted on the outer wall of the working platform, a movable plate is further mounted on the outer wall of the working platform in a sliding manner, and a lifting plate is vertically mounted at the top end of the movable plate in a sliding manner. The transmission mechanism is arranged on the movable plate and the lifting plate; the transmission mechanism comprises a limiting unit and a clamping unit; and the clamping unit is used for clamping the magnetic core. By arranging the transmission mechanism, when a magnetic core needs to be ground, the magnetic core can be clamped through the lead screw and the clamping block, the height of the lifting plate is adjusted by releasing limiting of the limiting block and the guide rod, the magnetic core is made to move to the needed height to make contact with the grinding roller to be ground, and compared with a traditional lifting mode, the magnetic core grinding device has the advantages that the magnetic core grinding efficiency is improved. By means of the structure, a user can conveniently and accurately adjust the height, and working efficiency is improved.

A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.

The invention relates to the technical field of soft magnetic ferrite materials, in particular to a preparation method of a high-permeability soft magnetic ferrite core material, which comprises the following steps: firstly, preparing FeSiCrBCu soft magnetic alloy powder with uniform components and controllable particle size through a single-roller quenching and hydrogen decrepitation process, and laying a structural foundation for excellent magnetic performance; and then a mechanical stirring-ultrasonic synergistic coating technology is utilized, so that the ferrite precursor uniformly coats the alloy powder, an effective core-shell structure is formed, and solid-phase reaction and crystal grain uniform growth during sintering are promoted. Besides, a multi-task deep learning model (MTL-DL) based on transfer learning is adopted to carry out multi-objective collaborative optimization on the sintering process, accurately match and dynamically adjust key parameters, and accurately regulate and control the material densification process, the grain size and the phase distribution on the microcosmic level, so that the problem that the microstructure and component uniformity are difficult to accurately control in the prior art is solved; therefore, the problems of poor material performance and high power loss are solved.

The invention discloses a small-size high-power power supply design method and application based on a planar transformer, and the method comprises the following steps: S1, employing a planar transformer structure comprising at least two layers of PCB windings and a low-loss ferrite magnetic core, enabling the windings to be formed through the etching of PCB copper foils, and enabling the leakage inductance of the adjacent winding layers to be reduced in a staggered stacking manner; s2, the planar transformer is integrated into an LLC resonant half-bridge topology circuit, and soft switching operation of a power supply system under high frequency is achieved by adjusting the primary and secondary turn ratio and resonance parameters of the planar transformer. PCB copper foil etching windings and low-loss ferrite magnetic cores are adopted, leakage inductance is reduced by stacking winding layers in a staggered mode, and the reliability of the power supply system is improved; the planar transformer is combined with laser cutting to precisely control an air gap, so that primary and secondary coupling coefficients are improved to a high coupling state, energy loss is reduced, the size of the transformer is effectively reduced, the planar transformer can be popularized to the fields of industrial power supplies, energy storage systems and the like, and balance of small size and high power is achieved through collaborative optimization of the planar transformer and a topological structure.

The invention discloses high-stability ferrite core automatic grinding equipment, and belongs to the technical field of machine tools and devices for grinding or polishing. The equipment comprises a machine cover, a workbench, two three-axis displacement mechanisms, two grinding mechanisms, two multi-connection clamping mechanisms, a scrap removing assembly and a two-way pressing mechanism, the three-axis displacement mechanisms drive the grinding mechanisms to achieve accurate movement in the X-axis direction, the Y-axis direction and the Z-axis direction, the grinding mechanisms grind magnetic cores, and the multi-connection clamping mechanisms and the two-way pressing mechanism jointly act, so that the scrap removing assembly can remove scraps on the magnetic cores. The magnetic core is stably clamped, and chippings and cooling water generated by grinding are treated in time through the chipping removing assembly; according to the grinding device, the grinding precision, stability and automation degree of the ferrite magnetic core are improved, the production efficiency is improved, the working environment is optimized, and the grinding device is suitable for machining of the hollow tubular ferrite magnetic core and has high practicability and popularization value.

A power transmitter for wireless power transfer includes a verification load, a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the verification load is compliant with the power request, and, if the power signal at the verification load is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.

An electric noise suppressor is provided for suppressing electric noise of at least one cable. The suppressor includes first and second ferrite members. Each of the ferrite members has an inner surface and an outer surface facing away from the inner surface, the first and second ferrite members being disposed so the inner surfaces face one another. The suppressor further includes first and second retention clips. Each of the retention clips has a side wall and opposed first and second pressing walls extending from spaced apart locations on the respective side wall. The retention clips are disposed so that the first pressing walls engage the outer surface of the first ferrite member and the second pressing walls engage the outer surface of the second ferrite member. The first and second pressing walls are configured to press the inner surfaces of the first and second ferrite members toward one another.

Compact inductive devices are disclosed herein. According to certain embodiments, a compact inductive device comprises a ferrite core, a ferrite body, and a first conductive column and a second conductive column, each extending from a lower surface of the ferrite body to an upper surface of the ferrite body. Furthermore, the compact inductive device comprises a planar substrate coupled to the upper surface of the ferrite body. The planar substrate includes wiring that electrically connects the first conductive column to the second conductive column.

The present disclosure relates to an input system, and more particularly, to an electronic device capable of sensing a stylus pen together with an object such as a finger that is in proximity or in contact with the outside, and an input system including a stylus pen including a ferrite core for a stylus pen capable of improving the magnitude of a pen signal received by the electronic device.

The invention discloses a magnetic coupling surge protection device based on an amorphous ferrite material, which comprises an amorphous ferrite magnetic core, a secondary side inductor, a secondary side resistor, a bias conductor and a bias power supply, is nested outside a high-voltage direct-current transmission line, and forms magnetic field coupling with the high-voltage direct-current transmission line through the amorphous ferrite magnetic core in the device. When suddenly changed surge current flows through the device, a rapidly changing magnetic field is excited in the amorphous ferrite material, the magnetic field provides equivalent inductance for the high-voltage direct-current transmission line, and meanwhile, the rapidly changing magnetic field generates induced electromotive force in the bias conductor and generates induced current; the induced current generates heat loss in the process of flowing through the secondary side resistor, and surge current energy in the high-voltage direct-current transmission line is converted into the heat loss of the secondary side resistor through the process, so that surge protection is realized. The invention has the advantages of high saturation magnetic flux density, high relative permeability, excellent high-frequency performance and the like, and is suitable for the operation condition of magnetic coupling surge protection equipment.

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a ferrite core and a stylus pen including the same, and more particularly, to a ferrite core capable of improving a magnetization effect due to an external magnetic body and a stylus pen including the same.SOLUTION: A ferrite core according to an embodiment of the present invention is a ferrite core mounted inside a stylus pen, and the ferrite core includes 60 to 80 wt% of iron (Fe), 15 to 30 wt% of manganese (Mn), and 3 to 20 wt% of zinc (Zn).SELECTED DRAWING: Figure 3

The utility model discloses a soft magnetic ferrite core surface finishing device, which relates to the technical field of magnetic core production and comprises a base and a support plate, electric cylinders are mounted on two sides of the bottom of the support plate, output ends of the electric cylinders are connected with a support disc through extension rods, and an inner ring of the support disc is connected with a transmission wheel. Through the arrangement of the polishing disc, the sleeve, the bonding layer, the polishing abrasive paper, the electric cylinder, the supporting disc, the transmission wheel and the first transmission groove, the surface of the ferrite core body can be conveniently polished and trimmed through the arrangement of the polishing disc; when an inner ring of an annular ferrite core body needs to be polished and trimmed or a gap of an E-shaped ferrite core body needs to be polished and trimmed, the output end of an electric cylinder drives a supporting disc to move upwards through an extension rod, the supporting disc moves upwards to drive a polishing disc to move upwards through a transmission wheel, and therefore polishing abrasive paper leaks out of the bottom of the polishing disc; the polishing head does not need to be disassembled or replaced or replaced to another polishing device, and operation is easy and convenient.

The application relates to the technical field of soft magnetic ferrite cores, and particularly discloses a grinding device for soft magnetic ferrite core processing and a method thereof, which comprises a feeding frame, a processing bottom frame, a processing top frame and a discharging frame. The surfaces of the soft magnetic ferrite cores are comprehensively ground by two grinding mechanisms symmetrically arranged above and below, manual turning operations of the soft magnetic ferrite cores are not needed, the grinding efficiency of the soft magnetic ferrite cores and the consistency and stability of the grinding are significantly improved, human errors are reduced, and the production efficiency is improved. When the soft magnetic ferrite cores are ground by the two symmetrically arranged grinding mechanisms above and below, the grinding liquid is first sprayed, sufficient cooling can be maintained during the grinding process, and the performance of the cores is prevented from being damaged due to overheating. In addition, the grinding debris generated during the grinding process can be flushed by the grinding liquid, and the grinding effect is prevented from being affected by the grinding debris adsorbed on the soft magnetic ferrite cores.

The utility model provides a three-dimensional coil and planar coil combined wireless charging system, which relates to the technical field of wireless charging and comprises a transmitting end and a receiving end. The transmitting end comprises a direct-current power supply, an inverter circuit, a transmitting end compensation circuit and a transmitting coil; the receiving end comprises a receiving coil, a receiving end compensation circuit and a rectification filter circuit. Wherein the transmitting coil comprises a manganese zinc ferrite magnetic core and a three-dimensional coil, and the three-dimensional coil is spirally and densely wound on the outer side of the manganese zinc ferrite magnetic core; the receiving coil comprises a planar coil and manganese zinc ferrite flat magnetic bars, the planar coil is wound into a circular ring shape, the manganese zinc ferrite flat magnetic bars are alternately arranged on the circular ring-shaped planar coil along the normal direction and the tangential direction, and the difference between two adjacent normal manganese zinc ferrite flat magnetic bars is 60 degrees; the difference between two adjacent tangential manganese zinc ferrite flat magnetic bars is 60 degrees, and the difference between the adjacent normal manganese zinc ferrite flat magnetic bar and tangential manganese zinc ferrite flat magnetic bar is 30 degrees.

To provide a lighting device that can reduce the load on the wiring. [Solution] The lighting device 10 comprises a fixture body 12, a power supply unit 14, and a ferrite core 18. The fixture body 12 has a power supply mounting surface 26. The power supply unit 14 is disposed on the power supply mounting surface 26 and has a power supply side connection part 34 to which one end of the wiring 17 is connected. The ferrite core 18 has an insertion hole 41 through which the middle of the wiring 17 is inserted, and is positioned such that the height of the insertion hole 41 from the power supply mounting surface 26 is at the same height as at least a part of the power supply side connection part 34.

The utility model relates to high frequency power converter technical field, concretely is a kind of magnetic core structure suitable for high frequency power converter.The utility model, including coil and fixed frame, the coil is installed in the inner wall of fixed frame, the lower surface of fixed frame is fixedly connected with two connecting seats, the inside of connecting seat is installed with several pins, the inner wall of fixed frame is covered with insulating coating, the inner wall of fixed frame is movably installed with two ferrite magnetic cores, two the ferrite magnetic core adsorbs and connects, the surface of pin is covered with protection tube, the protection tube is silica gel tube, the surface of two the ferrite magnetic core is wound with fixed band, the fixed band is magnetic core fixed band.Solved under high frequency operating condition, the magnetic hysteresis loss and eddy current loss of magnetic core sharply increase, lead to the serious heating of magnetic core, not only reduce the conversion efficiency of power converter, also possibly influence its long-term reliability problem.

The invention discloses a material receiving device for soft magnetic ferrite core production, and relates to the field of soft magnetic ferrite production and processing.The material receiving device comprises a first conveying frame and a second conveying frame distributed at the end of the first conveying frame, the second conveying frame and the first conveying frame are perpendicularly distributed, and the end of the second conveying frame abuts against the side wall of the first conveying frame; open right-angle through grooves are formed in the top of the first conveying frame and the top of the second conveying frame, and protective skirts are further fixedly arranged on the outer edges of the upper ends of the right-angle through grooves. Various soft magnetic ferrite blanks with different appearances can be automatically transferred from the first conveying belt to the second conveying belt through the transferring unit, the application range of the soft magnetic ferrite blank conveying device is wider, and the production efficiency is improved. In addition, the first conveying belt and the second conveying belt can trigger the batch discharging unit through the driving unit in the running process, the multiple soft magnetic ferrites stacked on the second conveying belt can be synchronously discharged in batches through the batch discharging unit, the discharging speed is high, and convenience is achieved.

Solid-state switch array apparatus and methods for digitized plasma magneto-inertial fusion are disclosed herein. A solid-state switch array apparatus for enabling discharge of direct current includes multiple solid-state switches arranged in series and parallel configurations. The apparatus includes corresponding series resistor circuits connected in parallel with each solid-state switch to distribute voltage across the switches and receive constant current flow from a power supply during charging. Snubber circuits including capacitors configured in parallel with each solid-state switch protect against transient back electromotive force during discharge. A ferrite core assembly includes wire fed through ferrite cores wound and connected to gates and cathodes of the solid-state switches. The ferrite core assembly delivers voltage pulses to simultaneously transition all switches to a conducting state in response to discharge from a discharge circuit capacitor, enabling control for plasma generation applications.

The utility model discloses a tray frame of a round ferrite core, which relates to the technical field of round ferrite cores and comprises a tray frame body, a cushion block is fixedly connected to the outer surface of the lower end of the tray frame body, and a butt joint block is arranged on the outer surface of the upper end of the tray frame body. According to the tray frame of the round ferrite core, the arranged base can be in butt joint and fixed with the butt joint block in the using process, the butt joint block is in butt joint with the interior of the butt joint groove in the fixing process, the positioning plug pin can be pulled before butt joint, and the positioning plug pin can compress the first limiting spring through the fixing piece in the moving process; when the butt joint blocks are fixed in a butt joint mode, the positioning plug pins can be loosened, at the moment, the first limiting springs rebound the positioning plug pins, the positioning plug pins are inserted into the positioning holes to be fixed, and therefore the base can be fixed, disassembly and assembly are convenient, the placing positions of the round ferrite cores can be conveniently adjusted through the base, and adjustment and arrangement can be conveniently conducted according to the sizes of the round ferrite cores.

The utility model discloses a ferrite magnetic core green body receiving and arranging device, which belongs to the technical field of ferrite magnetic core production and comprises a frame, a first conveyor belt and a second conveyor belt are arranged in the frame, and the first conveyor belt and the second conveyor belt are in reverse transmission. The magnetic core conveying device has the beneficial effects that by arranging the first conveying belt, the second conveying belt, the limiting frame and the limiting baffle, a plurality of magnetic cores can be placed and conveyed, in the conveying process, the magnetic cores are sequentially conveyed in the direction of the baffle, and follow-up arrangement operation is facilitated; the magnetic cores conveyed to one side of the first push plate can be conveniently adsorbed, so that gaps are formed between the magnetic cores according to the positions of the limiting grooves, subsequent firing operation is facilitated, and the arranged magnetic cores can be conveniently and smoothly moved to the discharging plate by arranging a supporting seat, a second electric push rod, a discharging plate and an inclined plate.

The invention discloses a grinding device and method for a gyromagnetic ferrite core of a high-power microwave device, and relates to the technical field of magnetic core processing. The device comprises a transverse plate, a feeding mechanism is arranged on one side of the top of the transverse plate, and a discharging mechanism is arranged on the other side of the top of the transverse plate; the feeding mechanism comprises a storage tank, the bottom of the storage tank is fixedly connected with the top of a transverse plate, a support is fixedly connected to one side of the top of the transverse plate, a transverse adjusting part is arranged at the top of an inner cavity of the support, and a lifting adsorption part is arranged at the bottom of the transverse adjusting part. The discharging mechanism comprises a vertical plate. According to the full-automatic polishing machine, a plurality of mechanisms such as the feeding mechanism, the discharging mechanism, the rotary feeding mechanism and the polishing mechanism are integrated, cooperative efficient operation among the mechanisms, automatic precise feeding of the feeding mechanism, continuous and stable feeding of the rotary feeding mechanism and efficient and precise polishing of the polishing mechanism are achieved, the machining efficiency is greatly improved, and meanwhile, the production cost is reduced. And the positions and actions are accurately controlled by all the mechanisms, so that the machining precision is effectively ensured.

The utility model discloses a ferrite magnetic core compression molding device which comprises a supporting frame, a pressing device and a pressing device. The workbench is horizontally arranged on the supporting frame, a die cavity is formed in the workbench in a penetrating mode, and a lower pressing block penetrating through the die cavity is arranged on the supporting frame; the portal frame is vertically and slidably connected with an upper pressing block inserted into the die cavity; the feeding hopper is buckled on the workbench; the transmission track is horizontally arranged on the supporting frame; the twisting track is used for turning over the horizontal product to a vertical state; the collecting pipe is horizontally arranged at the tail end of the twisting track; and the storage box is arranged on the collecting pipe in a sleeving manner. According to the utility model, the conveying track and the torsion track which are continuously arranged are arranged at the tail end of the workbench, ferrite magnetic core products are automatically collected and directionally conveyed, and the horizontal products are automatically overturned to be horizontal and then are pushed into the storage box one by one through the push block for storage, so that the automatic collection and arrangement of the products are realized, and the production efficiency is improved. And workers do not need to pick up and collect one by one.

This invention provides a fixing structure for automotive components (e.g., magnetic components) with improved slip resistance. [Solution] The magnetic component 10 comprises at least a coil 4, a ferrite core 3, and a leaf spring 2 that presses the upper surface 30 of the ferrite core 3 against the housing 1 with elastic force. The upper surface 30 of the ferrite core 3 has a groove 31 extending in a direction intersecting the front-rear direction of the vehicle (the direction in which the vehicle moves forward and backward). The inner wall surface of the groove 31 is inclined, and the protruding portion 21 of the leaf spring 2 has a rounded R shape. The R-shaped tip portion 20 of the leaf spring 2 is pressed against the opposing inclined wall surfaces 32a and 32b, respectively, thus fixing the magnetic component at two locations 20a and 20b. The groove may also have a groove 35 extending in a direction intersecting the left-right direction of the vehicle (the direction in which the vehicle rotates), and inclined wall surfaces 36a and 36b may be formed in the same manner as described above.

A showerhead heating package and a substrate processing apparatus using the showerhead heating package are disclosed. [Solution] A heating package for heating a shower head in a substrate processing apparatus according to an embodiment of the present disclosure, comprising a shower head heater disposed on and embedded in the shower head, the shower head heater comprising a heating element and a sheath surrounding the heating element, the heating package further comprising a filter configured to prevent radio frequency (RF) leakage from the heater line, a heater line configured to electrically connect the filter to the shower head heater, and a ferrite core disposed on the heater line.

According to the present disclosure, a stylus pen includes: a housing; a core having one end disposed outside the housing and the rest portion disposed in the housing and moved along a longitudinal direction by external force applied to the one end; an inductor unit including a ferrite core disposed in the housing and having a through-hole through which the core passes and a coil wound around an outer surface of the ferrite core; a capacitor unit electrically connected to the inductor unit to form a resonance circuit; and a plurality of sealing members configured to block a plurality of moisture ingress paths that pass through a core opening of the housing.

The utility model belongs to the technical field of ferrite magnetic cores, particularly relates to a ferrite magnetic core assembly for a relay, and aims to solve the problems of troublesome assembly and poorer impact resistance in the background technology, and provides the following scheme: the ferrite magnetic core assembly comprises an iron core piece, and a framework piece is arranged outside the iron core piece; the iron core piece comprises an upper ferrite magnetic core and a lower ferrite magnetic core, and the size of the upper ferrite magnetic core is the same as that of the lower ferrite magnetic core. According to the utility model, the framework piece adopts an integrally formed structure, so that the upper ferrite magnetic core and the lower ferrite magnetic core can be quickly assembled on the framework piece, the assembling difficulty is reduced, the mounting efficiency is improved, a plurality of fasteners are additionally arranged on the framework piece, each fastener comprises an angle plate and an internal thread pad, and the internal thread pads can be tightly attached to the bottom shell of the relay; the overall stability of the ferrite magnetic core assembly can be improved under the fastening effect of the fastening screws, and the impact resistance of the ferrite magnetic core assembly is improved.

The utility model relates to a pressing machine for preventing material adhesion of ferrite core, and relates to the technical field of magnetic material processing equipment, the punch rod is set above the operation table by utilizing external driving assembly, and the punch rod is matched and arranged in the forming groove, a plurality of air jet grooves are through -going arranged in the punch rod, the openings of the air jet grooves are arranged on the torus of the bottom end of the punch rod, and the plurality of air jet grooves are connected with external air pump, the rotating cylinder is rotatably connected on the ring wall of the punch rod by utilizing bearing, a plurality of grooves are equiangularly arranged on the ring wall of the rotating cylinder, the abutting rods are arranged in the grooves by utilizing adjusting assembly respectively, and the abutting rods are matched and abutted on the inner wall of the forming groove, the motor is fixed on the ring wall of the punch rod, the motor is above the rotating cylinder, and the output end of the motor is equipped with gear, the rotating cylinder is controlled to rotate through the motor and the gear, the powder on the inner wall of the forming groove is scraped off by matching the abutting rod, the powder is blown out of the forming groove through the air jet groove, and the quality of ferrite forming is avoided to be influenced.

The invention discloses a vehicle-mounted two-way wireless charging disc device of an electric bicycle. The vehicle-mounted two-way wireless charging disc device comprises the following parts: 1) a rear end cover shell; 2) a compensation and control circuit; 3) a shielding layer aluminum plate; 4) a ferrite magnetic core; 5) a DD type high-power receiving coil; 6) a circular low-power transmitting coil; and 7) a front end cover shell. The core is that the DD type high-power receiving coil (5) adopts a DD type coil structure and can be decoupled with the circular low-power transmitting coil (6) on a magnetic field, so that the two charging loops do not interfere with each other. Wherein the DD type high-power receiving coil (5) is used for wirelessly charging an electric bicycle, and the circular low-power transmitting coil (6) is used for wirelessly charging a vehicle-mounted mobile phone by the electric bicycle. Meanwhile, the forward charging channel and the reverse charging channel work at different resonant frequencies. In addition, wave-blocking filters are arranged in the two channels, and the wave-blocking frequency of the wave-blocking filters and the resonant frequency of the other channel are suppressed, so that the frequency interference of the corresponding channel is suppressed.

A showerhead heating package and a substrate processing apparatus using the same is presented. According to an embodiment of the present disclosure, a heating package for heating showerhead in a substrate processing apparatus, the heating package comprises: a showerhead heater disposed on a showerhead and embedded into the showerhead, the showerhead heater comprises: a heating element, a sheath surrounding the heating element, a filter configured to prevent radio frequency (RF) leakage from a heater line, a heater line configured to electrically connect the filter to the showerhead heater; and a ferrite core disposed on the heater line.