4315 results about "Magnetic components" patented technology

A self-docking faucet is provided. The faucet comprises a body and an arm extending from the body. A hose extends from the body and is fluidly coupled to an adapter, which is fluidly coupled to a sprayhead. The arm comprises a first magnetic component and the adapter comprises a second magnetic component. The first and second magnetic components exert an attractive magnetic force on one another to cause the adapter—and, therefore, the sprayhead—to be pulled toward and docked to a docking portion of the arm.

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 present invention discloses an integrated circuit chip with a data line, a key and a mechanical keyboard, wherein the integrated circuit chip integrates a magnetic induction integrated circuit and an RGB magic color driving circuit; the integrated circuit chip includes a power pin, a ground pin, a data information input pin and a data information output pin, and the connection between the data information input pin and the data information output pin of a plurality of integrated circuit chips forms a data line and is connected to the MCU; an integrated circuit chip cooperates with a key with a magnetic element to obtain a key information, and according to different communication protocols, the RGB magic color driving circuit and the magnetic induction integrated circuit share the data line, and transmit the RGB color grayscale information and the key information in a time-sharing manner. The present invention cascades all the key information through the data line, saves a lot of wiring space, reduces the design difficulty of the PCB, reduces the number of electronic components by multiples, and provides a variety of different code sending methods and working methods, making its application simpler and more efficient.

The invention discloses a sound production device and electronic equipment, and relates to the technical field of electroacoustic transduction, the sound production device comprises a vibration system and a magnetic circuit system, the magnetic circuit system comprises a magnetic conductive yoke, a central magnetic part and an edge magnetic part, the edge magnetic part and the central magnetic part are spaced to form a magnetic gap, one end of a voice coil of the vibration system is suspended in the magnetic gap, and the other end of the voice coil is suspended in the magnetic gap. The central magnetic part comprises a middle magnetic assembly and a Halbach magnetic circuit arranged around the middle magnetic assembly. The Halbach magnetic circuit comprises a first magnet, a second magnet and a third magnet which are sequentially arranged on the magnetic conductive yoke in a stacked mode. Wherein the first magnet and the third magnet are both magnetized in the direction perpendicular to the vibration direction of the vibration system, the magnetizing direction of the first magnet is opposite to the magnetizing direction of the third magnet, and the second magnet is magnetized in the vibration direction of the vibration system. According to the sound production device, the central magnetic part of the magnetic circuit system is optimized, so that the magnetic induction lines are effectively gathered in the magnetic gap, the BL value is increased, the sensitivity of the sound production device is improved, and the sound effect of the whole machine is improved.

The invention relates to a hybrid module (1) for a powertrain (2) of a motor vehicle (3) comprising an electric machine (4) with a stator (5) and a rotatable rotor (6) mounted coaxially relative to the stator (5), as well as a vibration damper (7) arranged coaxially to the rotor (6) with a damper inlet part (8) and a damper outlet part (9), and at least one energy storage device (10) arranged in the torque flow between the damper inlet part (8) and the damper outlet part (9), wherein the damper outlet part (9) is coupled to the rotor (6) and the damper inlet part (8) can be coupled to an internal combustion engine (11), and wherein the electric machine (4) and the vibration damper (7) are housed in a hybrid module housing (12).wherein the electric machine (4) is configured as an axial flux machine and the disk-shaped rotor (6) has a plurality of magnet units (25) arranged circumferentially over the rotor (6), each of the magnet units (25) having a first magnet element (26), a second magnet element (27) and at least one third magnet element (28), wherein the magnet elements (26, 27, 28) are magnetized such that they form a Halbach arrangement.

The invention relates to the technical field of magnetic field intensity detection, in particular to an automatic detection device and method for residual magnetic field intensity of a concrete material. Comprising a conveying mechanism, a magnetic shielding mechanism and a magnetizing mechanism, a plurality of magnetic detection devices are uniformly distributed in the magnetic shielding cylinder, the magnetic detection devices detect the residual magnetic field intensity of a concrete material sample, and the magnetization assembly magnetizes the concrete material sample; the control system is used for controlling the magnetic detection device and the magnetization mechanism, calculating the data detected by the magnetic detection device to obtain the residual magnetic field intensity of the sample before and after magnetization, judging whether the detection result exceeds the standard or not, and displaying the calculation result of the residual magnetic field intensity on the display; assembly line type and circulating automatic detection of the residual magnetic field intensity of the concrete material is achieved, the problems that the workload is large and the detection efficiency is low due to the fact that a large batch of concrete materials depend on manual detection are solved, the conveying mechanisms are all made of non-magnetic materials, and interference of ferromagnetic materials on the detection process is avoided.

The invention discloses a sound production monomer and electronic equipment, the sound production monomer comprises a magnetic circuit system, a vibration system and a shell, the magnetic circuit system comprises a magnetic conductive yoke and a magnet assembly arranged on the magnetic conductive yoke, the magnet assembly forms a magnetic gap, and the magnet assembly comprises a first magnet, a second magnet, a third magnet and a fourth magnet, the first magnet and the third magnet are magnetized in the second direction, the magnetizing directions are opposite, the second magnet and the fourth magnet are magnetized in the first direction, the first direction is perpendicular to the second direction, and the polarity of the magnetic pole, facing the first magnet, of the second magnet is the same as that of the magnetic pole, close to one side of the magnetic gap, of the first magnet. The polarity of the fourth magnet towards the third magnet is the same as that of the third magnet close to one side of the magnetic gap, so that the magnet assembly forms a magnetic field enhancement side towards the magnetic gap; the vibration system comprises a vibrating diaphragm and a flat voice coil. The magnet assembly forms a magnetic field enhancement side facing the magnetic gap, so that the magnetic field driving force is improved, and the acoustic performance of the loudspeaker is improved.

A mobile device mounting system includes a device case and a mount. The device case includes: an insert including a rectangular bore and defining a set of undercut sections about the rectangular bore; and a first set of magnetic elements arranged in a first pattern about the rectangular bore. The mount includes: a body; a polygonal boss extending from the body and configured to insert into the rectangular bore; a set of locking jaws arranged on the polygonal boss configured to transiently mate with the set of undercut sections to constrain the polygonal boss within the rectangular bore; and a second set of magnetic elements arranged in a second pattern about the polygonal boss and configured to transiently couple to the first set of magnetic elements to transiently retain the mount against the device case and to drive the set of locking jaws toward the set of undercut sections.

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 breast pump control method is provided. A breast shield is provided with a first cavity. The first cavity is allowed to fit and at least partially accommodate a breast to form a sealed area. A flexible component is provided. The flexible component is provided with a first magnetic component. At least a portion of the flexible component is communicated with the sealed area to form a portion of a wall of the sealed area. A second magnetic component is arranged opposite to the first magnetic component. The first magnetic component is driven by the second magnetic component to move to drive the flexible component to deform, such that a negative pressure is generated in the sealed area to drive the breast to express milk from the breast. A breast pump circuit control system and method are also provided.

A magnetic component assembly for a mobile device provides an improved connection between a mobile device and other mobile accessories. The magnetic component assembly may comprise an array of magnetic attachment elements enclosed in a structure and configured to magnetically align and attach to a corresponding array of magnetic elements disposed in a mobile device, a mobile device accessory, or another assembly component. Additional attachment features and elements disposed in or attachable to the assembly may provide further engagement or attachment options. The assembly may incorporate different combinations of components to adapt the assembly for different use-cases and provide greater utility. Various magnetic component assemblies may be suitable for use with a variety of mobile devices and accessories such as covers, cases, wallets, chargers, mounts, grips, and supports.

The invention discloses a Halbach magnetic assembly assembling method and equipment, the assembling equipment comprises a feeding assembly, a dispensing assembly, an iron piece placing assembly and a pressure maintaining assembly, the feeding assembly conveys jigs to stations of all the assemblies, and the assembling method comprises the steps that an overturning driving device drives an overturning platform to overturn to be inclined, and the overturning platform is driven by an overturning driving device to rotate; the top face and the front face of the magnetic assembly on the dispensing station face upwards in an inclined mode, then the dispensing machine dispenses glue on the top face and the front face of the magnetic assembly, then the iron piece taking and placing mechanism grabs the iron pieces fed by the iron piece feeding disc and places the iron pieces on the magnetic assembly on the iron piece placing station, and transverse plates and vertical plates of the iron pieces are attached to the top face and the front face of the magnetic assembly correspondingly. And then the upper pressure-maintaining push rod and the side pressure-maintaining push rod are simultaneously started to respectively extrude the top surface and the front surface of the magnetic assembly so as to complete pressure maintaining of the magnetic assembly. According to the invention, dispensing, iron piece feeding, pressure maintaining and other work can be automatically completed, the production efficiency is improved, and the labor cost is reduced.

The invention discloses a magnetic material processing and forming die, and particularly relates to the technical field of magnetic material processing devices.The magnetic material processing and forming die comprises a machine table, a die-casting structure is fixedly connected to the middle of the upper end of the machine table, and a material filling structure slidably connected with the upper end of the machine table is arranged on the inner side of the die-casting structure; the upper end of the machine table is fixedly connected with feeding equipment connected with the material filling structure through a material conveying pipe, and a pressing die discharging structure in sliding connection with the die-casting structure is arranged in an inner cavity of the machine table. According to the magnetic material processing and forming die, in the die-casting ascending process of the die-casting structure, a die-cast magnetic element is pushed out through cooperation of the die-casting structure and the pressing die discharging structure, the magnetic element is pushed forwards under the action of the material filling structure, and finally the magnetic element enters the discharging conveying belt through the guide slope to be conveyed out; and meanwhile, the material filling structure supplements materials to the pressing mold discharging structure, automatic feeding, demolding and discharging are completed, the production process is simplified, and the production efficiency and quality of products are improved.

The invention relates to a transfer method of a Micro LED packaging structure and a Micro LED display device, and relates to the technical field of semiconductor display. According to the transfer method of the Micro LED packaging structure, the ratio of the thickness of a packaging layer subjected to planarization processing to the height of a Micro LED unit is set to be larger than 10, then four symmetrically-distributed concave cavities are formed in the packaging layer of each Micro LED packaging array, the ratio of the depth of the concave cavities to the thickness of the packaging layer is 0.3-0.5, and the ratio of the depth of the concave cavities to the thickness of the packaging layer is 0.3-0.5. The distance between every two adjacent concave cavities is 800-3000 microns, through the process steps, the large-size magnetic component can be formed, the preparation process of the magnetic component is simplified, and the magnetic attraction force of the magnetic component can be improved.

Disclosed is a magnetic closing device used with outdoor / patio umbrellas. The magnetic closing device is used for automatically closing the umbrella in windy conditions. The magnetic closing device includes two primary components: a magnetic component, or pole clamp collar; and a metallic component, or runner clamp collar. The runner clamp collar is attached to the runner hub of the umbrella, and the pole clamp collar is attachable to the intermediate pole section of the umbrella. The pole clamp collar, incorporates a plurality of magnets, which attract the runner clamp collar. The magnetic closing device keeps the umbrella in an open position as long as the magnetic connection between the magnetic component and the metallic component is maintained. The disruption of the magnetic connection results in closure of the umbrella, thereby protecting the umbrella from damage or complete destruction.

According to one embodiment, a magnetic head includes a first magnetic pole, a second magnetic pole, and a magnetic element provided between the first and the second magnetic poles. The magnetic element includes first to fourth magnetic layers, and first to fifth non-magnetic layers. The fourth magnetic layer includes a first element and at least one of Fe, Co or Ni. The first element including at least one selected from the group consisting of Cr, V, Mn, Ti, N and Sc. The fourth non-magnetic layer including at least one selected from the group consisting of Cu, Au, Cr, Al, V and Ag. The fifth non-magnetic layer includes at least one selected from the group consisting of Cu, Au, Cr, Al, V and Ag.

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 discloses a laser welding process of a neodymium iron boron Halbach magnetic assembly. The laser welding process comprises the following steps: firstly, arranging a plurality of magnetized magnets in a Halbach array form; then glue is dispensed on the butt joint faces between the adjacent magnets, and the multiple magnets are glued to form a Halbach magnetic assembly; next, adjacent magnets are welded and fixed on the weak magnetic surface of the Halbach magnetic assembly in a nanosecond laser welding mode; glue is dispensed at the welding position, and the welding seam is filled and covered with glue while the Halbach magnetic assembly and the magnet fixing piece are fixed in a glue joint mode. According to the method, the Halbach magnetic assembly is assembled in the mode that glue joint is conducted firstly and then nanosecond laser welding is conducted, the welding operation is easy to conduct, the welding position is accurate, and magnetic performance attenuation can be controlled within a small range.

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.

The invention provides a reconfigurable series-parallel connection network type converter with high overcurrent capacity and a construction method, and belongs to the technical field of power electronic directional power converters. Comprising the following steps of: respectively connecting two corresponding ports of two asymmetric half-bridge modules, symmetric half-bridge modules or H-bridge modules through two bridge type bidirectional switches or reverse series bidirectional switches, and connecting a group of two non-corresponding ports of the modules through a third bridge type bidirectional switch or reverse series bidirectional switch; according to the converter example, two corresponding ports of two H-bridge modules are connected through two bridge type bidirectional switches respectively, and a group of two non-corresponding ports of the two H-bridge modules are connected through a third bridge type bidirectional switch; on the basis that the number of modules is not increased, the overcurrent capacity of the grid-forming type converter is remarkably improved, and the saturation problem of magnetic elements such as a power semiconductor device and a filter inductor is avoided; the system is modularized, simple in structure, malleable and easy to standardize.

The invention discloses a dual active bridge converter and a DC bias suppression method thereof, and belongs to the technical field of power electronic converters, and the method comprises the steps: carrying out the bilateral single-phase shift modulation according to a distribution coefficient p when the dual active bridge converter operates in a steady state; establishing an inductive current function model of the dual-active bridge converter considering the high-frequency link resistance; when a phase shift angle between the primary side and the secondary side of the dual-active bridge converter changes, according to circuit parameters of the dual-active bridge converter, an inductive current function model and a phase shift ratio before and after the change, a transient phase shift ratio is calculated and allocated to the primary side and the secondary side for bilateral single phase shift modulation. By introducing the transient phase shift ratio and the distribution coefficient and combining a bilateral phase shift control mode, transient direct current bias generated by transient inductive current and converter magnetic flux can be eliminated, excessive design of a magnetic element is avoided, and the ratio of any high-frequency link resistance value to a shift term can reach a stable state within a switching period.

Ladders, ladder components and related methods are provided. In some embodiments, adjustable stepladders are provided which include locking mechanisms that enable height adjustment of the ladder through application of a force towards the rails of the ladder. In other embodiments, spreader mechanisms are provided with cross bracing located and configured to provide additional stability to the ladder while also incorporating a handle that enables efficient collapsing of the ladder while reducing the potential of pinching ones hands or fingers. In another embodiment, a device is provided for selective coupling with the ladder that includes a support or safety rail and an adjustable tray. The device may be coupled with the ladder in a number of different positions including a stowed position. In another embodiment, a hinge assembly is provided having a magnetic component configured to be magnetically coupled with and temporarily store an object on the ladder.

A magnetic fragrance card configured to be mounted on an electronic device includes a card body, a magnetic element, an embedded element, and a fragrance element. The card body has a first surface and a second surface, a mounting groove, and a through hole, the mounting groove formed on the first surface, and the through hole penetrating the first surface and the second surface. The magnetic element is mounted in the mounting groove; the embedded element, having an accommodation space, is mounted in the through hole, and an opening end of the accommodation space is at the same side of the second surface; the fragrance element is mounted in the accommodation space; wherein the first surface of the card body is magnetically attached to the electronic device via the magnetic element.

The invention discloses a bipolar magnetic induction integrated circuit and a switch, the bipolar magnetic induction integrated circuit corresponds to a key switch, and each key switch comprises a switch body and a magnetic element; the switch body comprises a component capable of moving up and down, the bipolar magnetic induction integrated circuit is arranged on the surface of the PCB, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is a vertical direction; the magnetic element is positioned above the bipolar magnetic induction integrated circuit and is arranged on the part capable of moving up and down, and the NS pole direction of the magnetic element is a vertical direction or a horizontal direction; the magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. The bipolar magnetic induction integrated circuit is higher in anti-jamming capability, more suitable for dynamic control and high in function integration level, the bipolar Hall chip integrates a latch function (such as a latch type Hall), the state can be kept until the magnetic field is reverse, and the bipolar magnetic induction integrated circuit is suitable for accurate position memory.

The present application relates to the technical field of bendable circuit boards and provides a magnetic assembly and assembly method thereof, a linear motor, a camera, and an electronic device, capable of resolving the problems of low connection reliability between two repelling magnets in magnetic assemblies and low assembly efficiency of magnetic assemblies in related technologies. The magnetic assembly includes a magnet unit, which includes multiple magnets, wherein two adjacent and repelling magnets are welded together. The present application can be used in electronic devices such as mobile phones.

A non-contact motor magnetic braking device provided by the present invention comprises a motor rotating shaft, a motor shell and a magnetic braking device, the magnetic braking device comprises a static magnetic force assembly and a dynamic magnetic force assembly, the static magnetic force assembly is fixedly installed on the motor shell, the dynamic magnetic force assembly is in threaded connection with the motor rotating shaft, and the static magnetic force assembly is fixedly installed on the motor shell. When the rotating shaft is observed towards the output end of the motor rotating shaft, the working rotating direction of the motor rotating shaft is consistent with the thread direction so that the movable magnetic assembly can move in the direction away from the motor, and the static magnetic assembly and the movable magnetic assembly are different in polarity and are oppositely arranged so that mutual attraction can be achieved. And a limiting part for preventing the static magnetic component and the dynamic magnetic component from being in contact with each other is arranged between the static magnetic component and the dynamic magnetic component. After the scheme is adopted, the mutual attraction effect of magnetic force is effectively utilized to achieve the braking effect, non-contact braking of the motor is achieved through the static magnetic force assembly, the dynamic magnetic force assembly and the limiting part, and the abrasion problem caused by friction in a traditional braking mode is reduced.

The invention discloses a novel difference fixed-frequency boost control method suitable for resonant transformation topology, and relates to the technical field of resonant converter wide-range fixed-frequency boost control. According to the method, the switching frequency of a switching tube of a rectifier full bridge is set to be half of the switching frequency of a switching tube of an inverter side full bridge, the switching frequency of the inverter side full bridge is rated resonant frequency, a half-cycle feedback current circuit is formed, the feedback energy time is adjusted by controlling the PWM proportion of a single tube, and the output voltage of the converter is pumped up. Soft switching characteristics of part of switching tubes are inherited, wide gain of the converter on a rated frequency point can be guaranteed, the situation that tube section current is too high due to the fact that traditional frequency conversion control is in a wide under-resonance interval or a low inductance ratio is avoided, meanwhile, the problem that soft switching cannot be achieved in phase-shifting control is also avoided, and the control efficiency of the converter is improved. Meanwhile, over-wide frequency range adjustment is avoided for high-frequency application, convenience is brought to design of magnetic elements, and certain high-frequency and high-power-density application potential is achieved.

The invention provides a magnetic integration optimization design method for an LLC resonant converter, and belongs to the technical field of power electronics. The integrated magnetic core structure comprises a magnetic core base with four winding magnetic columns and a top cover plate, and the magnetic integration method reduces the number and the size of magnetic elements and reduces the height of the magnetic elements. According to the magnetic core structure, the magnetic flux density is uniformly distributed, the magnetic core loss of the transformer is reduced, and the power density and efficiency of the transformer are improved. Primary side windings of the transformer are unevenly distributed on the four winding magnetic columns, secondary side windings of the transformer are evenly distributed on the winding magnetic columns, and leakage inductance is only generated on the primary side of the transformer due to the fact that the primary side windings of the transformer are unevenly distributed and the secondary side windings of the transformer are evenly distributed. Therefore, the generated leakage inductance is used as the resonant inductance of the LLC resonant converter, and integration of the transformer and the resonant inductance of the LLC resonant converter is realized. The magnetic integrated transformer with different transformation ratios and controllable leakage inductance can be realized by adjusting the number of turns of windings on the primary side and the secondary side of the transformer and air gaps of winding magnetic columns.

A system includes: a segmented stator assembly; a set of windings; and a rotor. The segmented stator assembly includes a set of pole pieces arranged radially about an axis. Each pole piece defines: a rim extending about a periphery of the pole piece; a recess arranged on a first side of the pole piece; and a shoulder arranged on a second side, opposite the first side, of the pole piece. Each pair of adjacent pole pieces, in the segmented stator assembly, defines a pair of linearly-offset and angularly-offset rims that cooperate to define a tapered annular interstice in a radial array of tapered annular interstices. Each winding is arranged about a tapered annular interstice in the radial array of tapered annular interstices. The rotor: encompasses the segmented stator assembly; and includes magnetic elements configured to magnetically couple to the set of windings to rotate the rotor about the axis.