7699 results about "Magnetic core" patented technology

The invention provides a magnetic core intelligent cutting parameter self-adaptive optimization system based on multi-mode perception, and relates to the technical field of data processing.The method comprises the steps that a multi-mode sensor module is integrated on magnetic core cutting equipment, and the module comprises a force sensor, a visual sensor and a temperature sensor; the acquisition units are respectively used for acquiring cutting force dynamic signals, cutting track image sequences and cutter temperature time sequence data in real time; magnetic core surface texture features and three-dimensional contour data are captured through a visual sensor, and an initial cutting parameter set is generated in combination with a magnetic core material type recognition result, associated parameters in a historical process database and preset process constraint conditions; and first workpiece trial cutting is executed based on the initial cutting parameter set, multi-modal data fusion collection is synchronously started, cutting force frequency domain feature vectors, a tool temperature change rate curve and cutting surface defect image features are obtained, and multi-modal data are obtained. According to the invention, multi-objective collaborative optimization of processing efficiency and energy consumption is realized.

The invention discloses a method for constructing a magnetic core loss model of a magnetic element based on deep learning, and aims to solve the problem that an existing loss model is insufficient in prediction precision under complex working conditions. A traditional model cannot provide accurate loss evaluation when facing changes of various factors such as temperature, materials, frequency and the like, and magnetic element design and optimization of efficiency of a power converter are limited. Therefore, a high-precision magnetic core loss prediction model is constructed on the basis of a deep learning technology in combination with various key factors such as the temperature, the magnetic core material, the excitation waveform and the working frequency, and the prediction accuracy and universality are remarkably improved. On the basis, a double-target optimization model is further established, an MOEAD algorithm is adopted for solving, and the purposes of minimizing loss and maximizing magnetic energy transmission are achieved by optimizing design variable combinations. The method can be widely applied to the field of magnetic element design and optimization, and theoretical guidance and engineering reference are provided for accurate prediction of magnetic core loss and performance optimization of magnetic elements.

The invention relates to the technical field of transformers and discloses a high-frequency small planar transformer which comprises a transformer body, the transformer body comprises a lower magnetic core, an upper magnetic core is installed at the top end of the lower magnetic core, and a base plate, a cooling mechanism and a distance adjusting mechanism are arranged on the inner side of the upper magnetic core and the inner side of the lower magnetic core correspondingly. The cooling mechanism is arranged on the transformer body, more excellent heat dissipation and installation functions are achieved, a movable frame and a pull block are driven to move through reset of a first spring, an insertion block is clamped into a positioning groove to form an inverted-L-shaped layout, an upper magnetic core is transversely and longitudinally limited, and the upper magnetic core can be conveniently and rapidly installed. And meanwhile, the substrate is in contact with the cavity network, the internal high-performance fluorinated liquid absorbs heat and is changed from a liquid state to a gas state, enters the condenser through the conveying pipe after phase change, is cooled by the cooling fins to be in a liquid state and then circulates back to the cavity network through the water pump and the conveying pipe, local overheating is avoided, and the heat dissipation efficiency is improved.

The invention relates to the technical field of magnetic core product assembling equipment, and discloses full-automatic magnetic core dispensing and terminal assembling equipment which comprises a machine base. A magnetic core feeding device, a dispensing device, a terminal feeding device, a pre-pressing detection device, an oven curing device and a magnetic core charging pipe device are sequentially arranged in the conveying direction of the conveying device, and the oven curing device is arranged on the rear side of the conveying device. A first material taking mechanical arm is arranged between the oven curing device and the conveying device, a second material taking mechanical arm is arranged between the oven curing device and the magnetic core charging pipe device, and a jig block provided with a plurality of magnetic cores is conveyed on the conveying device. The magnetic core charging pipe device comprises a material pipe distribution frame, a plug pulling assembly, a quantitative material pushing assembly and a plug assembly, wherein the plug pulling assembly, the quantitative material pushing assembly and the plug assembly are sequentially arranged on the side of the material pipe distribution frame.

The invention discloses a high-power miniature electronic transformer, and relates to the technical field of miniature transformers, the high-power miniature electronic transformer comprises a main body, the main body comprises a lower magnetic core, the top end and the inner side of the lower magnetic core are respectively provided with an upper magnetic core and a base, one side of the outer surface of the base is provided with pins and an adjusting mechanism, and the outer surface of each pin is provided with a heat dissipation mechanism. Fixing mechanisms are arranged on the surfaces of the upper magnetic core and the lower magnetic core, more excellent compatibility and space utilization rate are achieved, a threaded rod is taken down through a rotating handle, then a clamping block is driven to move by moving a connecting rod, and then a reset spring is driven by the clamping block to stretch out and draw back on the inner side of a containing groove. Then the number of the pins can be reduced or increased according to the size of the space, adjustment of the distance between the pins is completed, then the clamping blocks drive the multiple sets of pins to move synchronously through resetting of the reset springs, and the pins of different sizes can be replaced according to needs to adapt to different placement spaces.

The invention discloses an anti-direct-current component nanocrystalline current transformer and a using method thereof. The anti-direct-current component nanocrystalline current transformer comprises a current transformer body, and a magnetic core hole penetrating front and back is formed in the middle of the front side of the current transformer body. The device is provided with a secondary side open circuit detection and protection mechanism, so that imbalance of a magnetic field in the mutual inductor caused by disconnection of a secondary loop is effectively prevented, iron core magnetic flux saturation and potential high electromotive force generation are avoided, the safety of the mutual inductor and peripheral equipment is protected, the risk of power system faults such as fire disasters or short circuits is reduced, and meanwhile, the safety of the mutual inductor is improved. A live wire centering fixing mechanism is arranged, so that the stable centering position of a wire in a magnetic core hole of the mutual inductor is ensured, magnetic field distribution is optimized, the magnetic leakage phenomenon is reduced, the accuracy and stability of current measurement are remarkably improved, meanwhile, measurement fluctuation caused by wire shaking is reduced, and the measurement precision is improved. And more accurate data support is provided for harmonic analysis, fault detection and electric energy quality monitoring of a power system.

The invention provides an automatic assembling method and system for an inductor magnetic core. Wherein continuous images of the surface of the magnetic core are captured through multi-band rapid scanning, and geometric deformation characteristics are extracted; meanwhile, a distributed optical fiber sensing array is adopted to collect pressure data of the contact surface, and a real-time distribution diagram is generated through a three-dimensional field reconstruction algorithm. And then carrying out space coordinate alignment on the edge contour offset of geometric deformation and the pressure gradient, and constructing a comprehensive quality index. And based on the dynamic deviation of the index, a contact angle compensation value and an assembly speed optimization value are solved in real time, and a parameter adjustment instruction is generated. And finally, through parallel calculation of instruction data, a pressure tolerance threshold value and a deformation compensation parameter are synchronously updated, dynamic balance of deformation correction and pressure control in the assembly process is realized, and a self-adaptive closed-loop precision control system is formed. According to the technical scheme, through multi-dimensional sensing data fusion and real-time parameter adjustment, dynamic matching of deformation and stress states in the magnetic core assembling process is achieved.

An inductor provided in the present invention includes multiple windings in the magnetic core. The multiple windings comprise a first, second, third and fourth windings. Second and third windings have been connected in series to form an integrated series winding inside the magnetic core with two leads exposed on the surface of the magnetic core for electrical connection with the power supply circuit. The first winding is magnetically coupled to the second winding, and the fourth winding is magnetically coupled to the third winding. A pair of leads at both ends of the first winding and a pair of leads at both ends of the fourth winding are exposed on the surface of the magnetic core for electrical connection with the power supply circuit. The inductor is welded on the circuit board, which saves the number of weld points, makes circuit connection more reliable and reduces DCR.

The invention relates to the technical field of excavator bucket rods, and provides a bucket rod composite damping device and an excavator. The device comprises a shell composed of a base, an outer shell and a stress shell; the magneto-rheological buffer device is installed in the shell and composed of a lattice structure made of magneto-rheological elastomer materials and magneto-rheological fluid filled in gaps corresponding to the lattice structure, and a plurality of sound absorption holes are formed in each cell element wall in the lattice structure; the electromagnetic device is located in a containing cavity formed in the lattice structure and is composed of a magnetic core and an electromagnetic coil; the anti-vibration pad and the stress plate are embedded in the top of the shell and are in contact with the stress plate; the damping springs are arranged on the periphery of the shell and fixedly connected between the stress plate and the base; the vibration monitoring module is used for collecting vibration data of the bucket rod in real time and transmitting the vibration data to the intelligent control module, and the intelligent control module is used for adjusting the output magnetic field intensity of the electromagnetic coil according to the vibration data so as to adjust the viscosity of the magnetorheological fluid in real time.

The invention discloses an electrical element magnetic core loss prediction method based on a soft gating hybrid expert model, and relates to an electrical element magnetic core loss prediction method, which adaptively adjusts the expert weight, so that the model is more flexible and has strong adaptability when facing different types of data. Diversified expert model combinations can complement respective advantages, so that the overall robustness and generalization ability are improved, and the risk of overfitting is reduced; in addition, the modular design enables the model to be easy to expand and maintain, and the interpretability of the model can be enhanced by analyzing the output weight of the gating network; furthermore, automatic parameter adjustment and end-to-end training are carried out through an intelligent optimization algorithm, so that the performance of the model is further improved; and finally, the soft gating hybrid expert model can effectively process non-linear and complex relationships, the powerful non-linear modeling capability of the MLP is utilized to capture a complex mode in the data, and the calculation efficiency is improved through parallel calculation and dynamic resource allocation. The advantages enable the soft gating hybrid expert model to show higher accuracy and reliability when processing complex tasks such as magnetic core loss prediction and the like.

The invention discloses a high-precision power supply output correction method based on a digital pre-distortion technology, and relates to the technical field of power electronics, and the method comprises the steps: integrating an electricity-heat-magnetism real-time combined observer, and inputting parameters including a power supply output voltage, a current, a power device junction temperature, a magnetic element surface temperature, an environment temperature, and an input voltage ripple; using a hierarchical memory depth pre-distortion compensator to generate an anti-phase pre-distortion signal containing long time domain thermal constant compensation and short time domain capacitance energy storage compensation based on modeling engine output; based on a double-ring adaptive updating module, an inner ring updates electrical parameters, including on resistance and dead time, by taking a switching period as a reference, and an outer ring updates thermomagnetic parameters, including thermal resistance and a magnetic core saturation point, in a minute-level period; and the DAC is connected in series with a pre-distortion signal output end through an anti-interference execution channel, and comprises a noise shaping DAC and a driving stage for delay matching. According to the invention, through an electric-thermal-magnetic three-field combined observation architecture, the limitation of traditional single physical field monitoring is broken through.

The invention discloses a magnetic core parameter optimization method based on magnetic energy transmission and loss optimization, which relates to the technical field of high-frequency magnetic elements and comprises the following steps: extracting characteristic parameters of a magnetic core, establishing an excitation waveform classification model in combination with the frequency of a working thermometer, and classifying excitation waveforms; based on the excitation waveform classification result, a temperature correction coefficient is introduced into a SteinMazz equation, and a corrected SteinMazz equation is obtained and used for predicting magnetic core losses of different excitation waveforms; analyzing the independent or synergistic effect of the temperature, the excitation waveform and the magnetic core material on the magnetic core loss; constructing a neural network magnetic core loss prediction model by taking the frequency, the waveform, the magnetic flux density peak value, the temperature and the magnetic core material as characteristics, constructing a fitness function by using the maximum transmission magnetic energy and the minimum magnetic core loss, and optimizing the input characteristics by using a genetic algorithm to obtain optimized magnetic core parameters; and excellent fitting precision and generalization ability are obtained in the aspects of excitation waveform classification, stein-Mitz equation correction and magnetic core loss regression.

A printed circuit board (PCB)-based axial flux motor and methods of manufacturing are disclosed herein. The axial flux motor includes a printed circuit board (PCB) stator assembly having a plurality of PCB stator cores distributed about a central rotational axis, each of the PCB stator cores include at least one stator coil layer surrounding a corresponding PCB void and a stator core insert disposed in the corresponding PCB void. The axial flux motor includes one or more rotors attached to a common shaft, each rotor having at least two magnetic poles. The axial flux motor includes a frame having at least one bearing. The frame is configured to align and support the one or more rotors for rotation about the central rotational axis.

The invention relates to the technical field of inductors, in particular to an inorganic insulation integrally-formed power inductor and a preparation method thereof. The method comprises the following steps: S1, selecting a coil; s2, pre-stretching the coil; s3, pre-coating of inorganic powder is carried out; s4, pressing the magnetic powder; s5, sintering the ceramic layer at high temperature; and S6, integrally forming the inductor. By reasonably selecting the material and shape of the coil and the type of the magnetic powder and combining high-temperature sintering at the temperature of 250 DEG C or above, the magnetic conductivity and the bias resistance are improved, the diversified requirements of high frequency, high temperature, high power density and the like are met, and the performance of insulation, heat conduction and the like can be optimized; according to the integrated forming process, coil pre-packaging and magnetic core forming are completed in one step, production procedures are reduced, process integration and production efficiency are improved, production cost is reduced, the utilization rate of a magnetic core window reaches 100%, and the product size is reduced.

The invention belongs to the technical field of electrical measurement, and particularly discloses a hundred-kA impact large-current sensing device based on a multi-composite magnetic core material. The device comprises a multi-composite magnetic core framework, a current winding coil, a parallel resistor and a shielding shell, the multi-composite magnetic core framework is formed by compounding at least two magnetic materials, the multi-turn current winding coil is distributed on the multi-composite magnetic core framework, and the two ends of the parallel resistor are connected with the two ends of the current winding coil respectively; the shielding shell is located on the outer side of the composite magnetic core framework. A current conductor to be measured penetrates through the composite magnetic core framework in the axial direction, and the measurement output end of the current winding coil is connected with an output circuit. The technical problem that an existing impact large-current sensing device cannot meet the technical requirements of high-amplitude and high-accuracy impact large-current measurement is solved.

The invention discloses a three-dimensional integrated packaging structure and a packaging process thereof. The three-dimensional integrated packaging structure comprises a flip or normal chip with a functional surface and an opposite back surface; the rewiring layer and the chip are vertically stacked and electrically connected with each other; electrically leading the rewiring layer out of the packaging structure; the stacking direction of the inductor and the chip is parallel to the thickness direction of the chip, the inductor and the chip, the rewiring layer and the lead-out structure are physically isolated through an insulating medium layer, the inductor is of a spiral, multi-ring layer overlapping or sectional winding structure, the inductor comprises a magnetic core, a spiral coil surrounding the surface of the magnetic core is formed through etching and electroplating processes, and the lead-out structure is arranged on the surface of the spiral coil. The spiral coil comprises a circuit A, a circuit B and a circuit C, and the magnetic core and the spiral coil are encapsulated by the insulating medium layer. The inductor and the chip are stacked in an inverted or normal mode, the three-dimensional structure saves space, reduces parasitic inductance, resistance and the like, signal transmission is stable, electromagnetic interference is small, and the three-dimensional structure is suitable for the chip packaging field of miniaturization, high integration and the like.

The invention relates to a multi-phase magnetic coupling structure, a series compensation circuit and a wireless charging system, and relates to the technical field of wireless power transmission, the multi-phase magnetic coupling structure comprises a primary side magnetic energy emission structure and a secondary side magnetic energy receiving structure, the primary side magnetic energy emission structure comprises a first magnetic core and an emission coil; the secondary side magnetic energy receiving structure comprises a second magnetic core and a receiving coil; the transmitting coil and the receiving coil are both multi-phase bipolar coils; therefore, the magnetic coupling structure provided by the invention is higher in magnetic field intensity, higher in power density and obviously improved in transmission efficiency, the transmission efficiency of the structure can reach more than 94% after the front end voltage is increased to 50V, and the highest efficiency is close to 96%.

The present invention relates to a magnetic resonance system and a gradient amplifier filter for a magnetic resonance system. The filter includes a plurality of non-magnetic core inductors and a printed circuit board having a multilayer structure, a plurality of filter capacitors being formed in a plurality of regions of the printed circuit board, respectively, wherein each non-magnetic core inductor is provided on the printed circuit board and spanning two of the plurality of filter capacitors.

An electric generator according to the present technology includes a coil element. The coil element includes a magnetic core and two or more windings. The magnetic core causes a magnetic flux change in an axial direction. The two or more windings that are each helically wound around the magnetic core in such a manner that each of the two or more windings is adjacent to the other winding in the axial direction of the magnetic core and are independent windings each capable of being electrically separated from the other winding.

The invention belongs to the technical field of plasmas, and provides a remote plasma generator, which comprises an ionization cavity, an ignition assembly, a magnetic core assembly and a heat dissipation assembly, and is characterized in that an air channel is formed in the ionization cavity; the ignition assembly is used for conducting excitation ignition on gas in the gas channel to form plasma. The ignition assembly comprises a dielectric sheet, a sealing structure and an ignition structure, and the dielectric sheet is attached to the ionization cavity; the sealing structure is arranged on the outer side of the dielectric sheet; the ignition structure is used for performing excitation ignition on gas; an anodic oxidation coating film is formed on the inner wall of the ionization cavity; an anodic oxidation coating film is formed on the surface of the dielectric sheet through an anodic oxidation process. The anodic oxidation coating film is formed on the surface of the dielectric sheet, the dielectric sheet serves as a dielectric material, meanwhile, the anodic oxidation coating film on the surface is tightly attached to the anodic oxidation coating film in the ionization cavity, the contact surface stress is increased, the dielectric sheet is prevented from cracking, gas corrosion caused by plasma bombardment is effectively reduced, and the service life is prolonged.

A magnetic component and a switch power supply device are disclosed. The magnetic component includes a magnetic core and at least three windings, the magnetic core including at least three winding columns, at least one side columns, a first cover plate and a second cover plate opposite to each other, wherein the at least three winding columns are sequentially arranged in adjacent, the first cover plate and the second cover plate are respectively at upper parts or lower parts of the at least three winding columns and the at least one side column to form a closed magnetic flux loop; the at least three windings are wound on the at least three winding columns, respectively; wherein magnetic flux direction of the middle winding column in adjacent three winding columns is opposite to magnetic fluxes direction of the other two winding columns in adjacent three winding columns.

The invention belongs to the technical field of magnetic core crack detection, and particularly relates to magnetic core surface crack detection equipment which comprises a detection box and two supporting legs arranged on the lower side wall of the detection box, and an operation panel is fixedly connected to the left side wall of the detection box. When the probe is used for detecting the rod-shaped magnetic core, impurities attached to the surface of the rod-shaped magnetic core can be automatically cleaned in the detection process, and then cracks on the surface of the rod-shaped magnetic core are detected, so that the time spent on an extra dust cleaning procedure is shortened, and the detection efficiency is improved under the condition that the workload of operators is reduced. According to the detection device, the detection accuracy of the rod-shaped magnetic core is guaranteed, the straightness of the rod-shaped magnetic core can be automatically detected while cracks on the surface of the rod-shaped magnetic core are detected through the probe, the detection result is visually displayed to an operator, the operator can conveniently record and analyze the detection result, and the use performance of the detection device is improved.

The invention discloses a metal soft magnetic powder core and a preparation method thereof.The preparation method comprises the steps that cold sintering is conducted, under the ultrasonic-assisted condition, warm-pressing is conducted on mixed powder containing modified iron powder and a release agent, and a metal soft magnetic powder core green body is obtained; wherein the modified iron powder comprises iron powder and a coating layer, the surface of the iron powder is coated with the coating layer, and the coating layer comprises copper, hydrated ferric oxalate, hydrated cupric oxalate and iron oxide; and heat treatment is conducted, specifically, the metal soft magnetic powder core green body is subjected to heat treatment under the oxygen-containing condition, and the metal soft magnetic powder core is obtained. Ultrasonic assistance is introduced when the modified iron powder is subjected to cold sintering, and a mixed insulation coating layer of ferric oxide and copper oxide can be generated on the surfaces of powder particles in situ during heat treatment, so that the compactness, the strength, the resistivity and the magnetic conductivity of the magnetic core are improved while the pressing force is reduced and the pressing efficiency is improved.

The invention discloses a magnetic integrated transformer design method and device for a CLLC converter, relates to the technical field of high-frequency transformer design, and aims at solving the technical problem that an existing magnetic integrated transformer design method for the CLLC converter is poor in design precision. The method comprises the following steps: based on a preset transformer magnetic circuit model, a preset area product method and preset constraint conditions, determining the total number of turns of primary and secondary winding coils, the number of turns of the primary and secondary winding coils distributed to left and right side columns and the length of left and right side magnetic powder core magnetic columns, further obtaining the magnetic resistance of a magnetic flux branch, and considering the magnetic flux effect of an air gap edge. The accurate air gap length is determined, the magnetic resistance at the corner of the magnetic core and the extra leakage inductance value in air near a winding coil are fully considered, the primary side leakage inductance in a target magnetic core magnetic circuit, the total amount of the target air extra primary side leakage inductance and the magnetic powder core material magnetic conductivity of the target left and right side magnetic powder core magnetic columns are determined, and then a preset coil winding mode is combined. A magnetic integrated transformer for a CLLC converter is designed.

The invention provides a current sensor. The current sensor adopts a magnetic-core-free design, and adopts a diversion row group with a special structure to guide a target current so as to enhance the electrifying capability of the current sensor and reduce the adverse effect of a high-frequency current skin effect on measurement. Based on the structural characteristics of the diversion row group, the magnetic sensitive component for measuring the target current and the corresponding sensing signal processing method are arranged in a matched manner, so that the measurement precision of high-frequency large current is improved, the suppression capability of an interference magnetic field is improved, and the signal-to-noise ratio of an effective measurement signal is increased. The current sensor provided by the invention is compact in structure, simple in manufacturing process, strong in electrifying capability and high in signal-to-noise ratio of a sensing signal, not only widens the measuring range of the current sensor, but also effectively improves the measurement precision of high-frequency large current, and expands the application range of the magnetic-core-free current sensor.

The invention relates to the field of electromagnetic nondestructive testing, in particular to a curved surface self-adaptive eddy current testing probe, a nondestructive flaw detector and a testing method. The eddy current detection probe comprises a magnetic core bundle, an excitation coil and an induction coil. Wherein the magnetic core bundle is formed by densely arranging a plurality of ferromagnetic magnetic needles; and the excitation coil and the induction coil radially limit the magnetic core bundle. The excitation coil is wound on one end of the magnetic core bundle away from the detection surface and is used for connecting an adjustable power supply. The exciting coil generates an alternating magnetic field for detection in a target area by using the adjustable power supply, and magnetizes the magnetic core bundle by using the adjustable power supply, so that the detection surface of the eddy current detection probe is tightly adsorbed with the target area on the surface of a detected object. And the induction coil is wound at one end, close to the detection surface, in the magnetic core bundle and is used for inducing a signal generated by a detected object in the detection process. According to the invention, the problem that the existing electromagnetic nondestructive testing probe cannot be attached to various complex curved surfaces to cause signal attenuation and influence the measurement precision is solved.

A microelectronics package comprises a substrate comprising at least two conductive layers that are separated by a first dielectric. At least one island comprising a magnetic material is embedded within the dielectric between the two conductive layers. An inductor structure extends within a via in the at least one island. The via extends between the two conductive layers. The inductor structure comprises a conductive wall along a sidewall of the via, and wherein the conductive wall surrounds a second dielectric and is electrically coupled to the two conductive layers.

The invention discloses a magnetic core assembling device and an assembling method thereof, and relates to the technical field of magnetic core assembling equipment.The magnetic core assembling device comprises a case and a mounting table arranged on one side of the upper end face of the case, a synchronous conveying belt is arranged on the mounting table, and a plurality of positioning die holders used for containing magnetic core frameworks are evenly connected to the surface of the synchronous conveying belt at intervals; the machine box is provided with a feeding assembly used for placing a magnetic core framework into the positioning die holder, magnetic core feeding vibration discs are arranged on the two sides of the upper end face of the mounting table correspondingly, and arc-shaped feeding channels are formed in the magnetic core feeding vibration discs. According to the automatic gluing device, automatic gluing operation on the butt joint faces of the magnetic cores can be achieved while pressing is conducted through the arranged gluing assembly, meanwhile, the gluing action, the magnetic core inserting action and the magnetic core framework feeding action are driven by the linkage arm serving as a connecting piece, the corresponding actions are completed, control over the device is simpler, and the production efficiency is improved. And the failure rate of equipment is effectively reduced.

The invention discloses an intelligent hanging and conveying device for manganese zinc ferrite core vibration grinding materials, and relates to the technical field of conveying, the intelligent hanging and conveying device comprises a conveying box, a hanging frame is fixedly installed on the surface of the conveying box, a feeding pipe is fixedly installed on the surface of the conveying box, a discharging port is fixedly installed on the surface of the conveying box, and a motor is fixedly installed on the outer wall of the conveying box; a transmission belt is installed on the surface of the transmission roller in a transmission mode, a material supporting plate is fixedly installed on the surface of the transmission belt, a sliding groove is formed in the top of the material supporting plate, a sliding block is slidably installed on the inner wall of the sliding groove, a push plate is fixedly installed on the top of the sliding block, and a guide groove is formed in the surface of the material conveying box; the elastic telescopic rod moves upwards to drive the rotating wheel to move upwards, the rotating wheel is pushed to enter the guide groove under the elasticity of the elastic telescopic rod in the upward moving process, and the rotating wheel moves in the direction of the guide groove.

The invention relates to a magnetic core loss prediction method and device for a magnetic element, and the method comprises the steps: obtaining historical data sets of different magnetic core materials, thereby considering the influence of the temperature on the magnetic core loss, carrying out the temperature correction of a preset SteinMazz equation according to the historical data sets, obtaining a target SteinMazz equation, and carrying out the prediction of the magnetic core loss of the magnetic element. Therefore, loss prediction can be carried out on the magnetic core material in the historical data set through the target Steinmaz equation, and an updated data set of the prediction value of the temperature factor is obtained. Furthermore, the influence of the magnetic flux density data and the frequency on the magnetic core loss can be considered, the updated data set is merged according to the magnetic core material, the magnetic flux density data and the frequency, a merged data set is obtained, and then the preset prediction model can be trained through the merged data set. The training of the preset prediction model on the magnetic flux density data and frequency is added, so that the predicted magnetic core loss of the target prediction model on the magnetic element better conforms to the actual situation.