82 results about "Single coil" patented technology

The invention discloses an oil abrasive particle detection device based on pseudo-random signal excitation and an inversion method, a pseudo-random excitation module outputs pseudo-random alternating current excitation formed by combining a plurality of waveforms, and the pseudo-random waveforms are not less than three frequency waveforms; the sensing module is a three-coil balance type, double-coil mutual inductance type or single-coil self-inductance type inductance sensing unit, coils in the sensing module construct a detection area with an alternating magnetic field under the excitation of alternating current, and the alternating magnetic field has pseudo-random characteristics; the signal acquisition and fitting module detects an induced voltage signal of the coil, and signal pulses generated by the metal abrasive particles under different excitation waveforms are obtained through fitting according to pseudo-random alternating current excitation characteristics; and the abrasive particle feature inversion module performs inversion according to the abrasive particle pulse signals generated by fitting under each excitation, and calculates the equivalent radius, the conductivity and the magnetic conductivity corresponding to the abrasive particles, so as to determine the material and the size of the abrasive particles. According to the invention, the material, size and concentration information of the abrasive particles can be accurately obtained.

A single-torus ohmmeter for measuring a loop impedance Zx, includes a single transformer having a primary winding of Np coils and a secondary winding of a single coil forming the measurement loop, in which, to compensate for a stray induction produced by an AC leakage current circulating in the measurement loop without canceling a measurement current Ip generating an alternating induction of constant average value for the measurement of the loop impedance Zx, the transformer includes a second secondary winding of Na coils whose output voltage Ub representative of the AC leakage current is delivered to a processing module providing a voltage intended to be added to an alternating measurement voltage Vp in an adder delivering the current to be injected into the primary winding after passage through a voltage-current converter.

The invention discloses a color steel coil production cost optimization method and device and a medium, and the method comprises the steps: determining the production cycle of a single coil according to the time information of a new coil ready signal and a coil unloading completion signal; collecting power data of production line equipment in the production cycle, and determining energy consumption cost according to the energy unit price; according to the preset auxiliary material unit price and the production parameters in the production cycle, the auxiliary material cost is determined; constructing a feature matrix and a unit area cost vector according to a preset batch of single volume production data to train a cost prediction model; according to a preset constraint condition, determining an optimal parameter combination through a gradient projection method so as to minimize the unit area cost; and according to the parameter combination, the coating process parameters and the formula parameters in the next production process are adjusted, so that cost optimization closed-loop control is achieved. The cost accounting error is greatly reduced by defining the single-roll production cycle and accounting the energy consumption and the auxiliary material consumption; and meanwhile, a closed loop is driven through data, so that the production cost of the color steel coil is optimized.

This application belongs to the field of wireless charging technology, specifically relating to a constant current and constant voltage wireless charging system and method based on a three-coil loosely coupled transformer, including an inverter circuit, a primary-side compensation circuit, a resonant circuit, a secondary-side compensation circuit, a rectifier circuit, and a filter capacitor; the resonant circuit has an anti-parallel coil structure, with the third coil located on the secondary side and a single coil on the primary side; its advantages are high misalignment tolerance, load-independent output, and high efficiency.

This invention discloses a top-sealed water flow rate testing device for a water-cooled magnet coil, comprising a container assembly and a water-blocking assembly. The water-blocking assembly, used to block the coil under test, is disposed inside the container assembly, dividing the interior of the container assembly into a high-pressure water zone and a low-pressure water zone. The container assembly is provided with an inlet and an outlet, the inlet communicating with the high-pressure water zone and the outlet communicating with the low-pressure water zone. The water-blocking assembly includes a sealing cap and a sealing ring. The sealing cap is disposed on top of the central through-hole of the coil under test, and the outer side of the sealing ring is sealed to the inner wall of the container assembly, while the inner side is sealed to the coil under test. The advantage of this invention is that, through the setting of the water-blocking assembly, the inlet is connected to an external cooling water supply system. The flow rate entering the high-pressure water zone from the inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the testing of the water flow rate of a single coil under test.

The invention discloses a U-shaped coreless linear motor winding structure and a motor, and relates to the field of linear motors. The invention aims to solve the problems that a winding of an existing U-shaped coreless motor is complex to manufacture, single coil structures are different, and end structures are in cross contact, so that the operation reliability and the service life of the motor are seriously threatened. The motor winding structure comprises at least one unit winding, the end part of each coil in the unit winding is U-shaped, two end parts and two linear parts are alternately arranged and connected end to end to form a ring, and the two end parts are bent towards the same side of the two linear parts; the coils are sequentially arranged in the moving direction of the linear motor, the two groups of coils are arranged oppositely, so that the end parts of the two groups of coils face opposite directions, the end parts of the adjacent coils are not in contact with each other, and the linear parts of the two adjacent coils in one group of coils are embedded into the U-shaped groove of one coil in the other coil group at the same time; and when the number of the unit windings is greater than 1, the linear parts and the vacancies of two adjacent unit windings are mutually embedded.

The invention discloses an oil-immersed transformer winding structure and a winding device, relates to the technical field of oil-immersed transformers, and aims to solve the technical problem that the functionality of a coil assembly of a traditional oil-immersed transformer winding structure is limited. And an upper clamping piece is arranged above the lower clamping piece through an iron core. According to the oil-immersed transformer winding, the insulating layer on the outer side of the coil assembly is subjected to wrinkle treatment, so that the oil-immersed transformer winding effectively adapts to the tension and the drawing force of the bending radian in the winding process when being wound on the iron core to be bent; in this way, the shape of the single coil assembly can be conveniently adjusted so as to adapt to coil assemblies of different structures and shapes. According to the mode, the coil assembly is preprocessed under the adaptation of a certain size specification, then adjustment is carried out according to the coil assembly of the actual specification of the needed oil-immersed transformer winding structure, meanwhile, wrinkle treatment is carried out in cooperation with an insulating layer on the outer side of the coil assembly in the adjustment process, and the situation that the insulating layer is damaged is reduced.

A hybrid wireless power device comprises a single coil operated at two or more resonance frequencies. For example, a control circuit controls the voltage applied across a power transmission coil of a hub, and a frequency control circuit comprises a switch, such as a solid state relay, for switching between a first capacitance and a second capacitance for shifting the resonance frequency from a first resonant frequency to a second resonant frequency.

The application discloses a device for measuring the magnetic field distortion of a pulsed magnet, which comprises an arrayed measuring coil assembly and an analog integrator; the arrayed measuring coil assembly comprises multiple layers of PCB circuit boards which are placed in an upper-lower overlapping mode; each layer of the PCB circuit boards is engraved with N groups of coils which cover the field region of the pulsed magnet; the coils of different layers of the PCB circuit boards adopt the same spiral direction and are connected with each other through through holes; the analog integrator comprises a primary signal integrator for processing an induced voltage primary signal and a differential signal integrator for processing a differential signal; a single coil signal is connected to the primary signal integrator; the wires of different groups are reversely connected with each other, and the differential signal is connected to the differential integrator; and a corresponding measuring method is also disclosed.

The application discloses a high-frequency-response low-power-consumption aerodynamic proportional valve. The application is composed of a torque motor and an aerodynamic rotary valve; the torque motor comprises a permanent magnet, a magnetic conducting yoke, an upper armature, a lower armature, an upper framework, a framework column, a lower framework, an exciting coil, a coil framework, a spring support, a spring plate and a load spring. The torque motor in the application adopts a single-coil structure and the axis of the exciting coil coincides with the rotating axis of the armature, and the coil is placed between the upper and lower armatures, so that the structure is simple and compact and the miniaturization of the torque motor is easy to realize. The torque motor in the application has two upper and lower armatures, and the two upper and lower armatures have four armature arms, so that eight air gaps can be formed. The eight air gaps are paired, and under the excitation of the control coil, four pairs of parallel magnetic circuits are formed; under the same power consumption and size, the torque motor with two pairs of parallel magnetic circuits has greater output torque, so that the same output torque can be realized with lower power consumption and smaller size.

The utility model relates to a spliced stator coil holder structure, which comprises a single chip which comprises an outer arc part, a connecting part and an inner arc part, one side of the outer arc part is provided with an embedding groove, and the other side of the outer arc part is provided with an embedding body; the coil holder single group comprises a front coil holder and a rear coil holder, the front coil holder comprises a first baffle part, a first insertion part and a second insertion part, and a first slot is formed between the first insertion part and the second insertion part; the rear wire frame comprises a second baffle part, a third insertion part and a fourth insertion part; a second slot is formed between the third insertion part and the fourth insertion part; the first baffle part and the second baffle part extend out of the single chip, the first insertion part and the third insertion part are in butt joint to form a first side groove, and the second insertion part and the fourth insertion part are in butt joint to form a second side groove; the embedding groove of one single chip is matched with the embedding body of another single chip in an embedded mode, the outer arc portions of the multiple single chips are spliced to form a ring shape, and the first side groove of one single coil holder set is communicated with the second side groove of another single coil holder set to form a coil groove.

The invention discloses an extensible three-layer decoupling array coil structure, an extensible array coil and a wireless electric energy transmission system, and relates to the technical field of wireless electric energy transmission, a partial element equivalent method is introduced to extract inductance parameters of regular hexagonal coils, the relation between the overlapping size and mutual inductance of adjacent coils is constructed, and model calculation shows that the inductance parameters of the regular hexagonal coils are calculated to be larger than the inductance parameters of the regular hexagonal coils. And when the overlapping size between the adjacent coils is 32.42 mm, the coils are decoupled. In addition, for load position detection, a flexible film pressure sensor detects a load pressure value to realize position positioning, and single-coil, double-coil and three-coil local intelligent charging modes of the array system are switched according to different load positions, so that reasonable utilization of energy is realized.

This invention discloses a six-phase current-sharing common-mode integrated reactor, belonging to the fields of power electronic magnetic components, electromagnetic interference suppression, and multi-path current-sharing filtering. The reactor includes three winding working columns and two magnetically integrated columns, which are connected to form a closed magnetic circuit. The top of each winding working column has a coil start-up terminal block and a coil end terminal block, while the bottom has a coil middle tap terminal block, with coils wound on all three terminal blocks. The three winding working columns are arranged at intervals, and the two magnetically integrated columns are respectively positioned between adjacent winding working columns, enabling magnetic integration of the three winding magnetic circuits through the magnetically integrated columns. An air gap is provided in each winding working column. This invention utilizes the opposite winding directions of the coils to cancel out the magnetomotive forces. When the current is balanced, it is in an inductive state; when the current is unbalanced, the common-mode inductor functions to force current sharing; the differential-mode inductor is used to filter out noise. This invention achieves six-phase common-mode integration with a single-coil scheme, resulting in small size and low cost.

The application discloses an electromagnetic ultrasonic transducer, a monitoring system and a method for in-situ detection of high-temperature welds, comprising an adjustable magnetic circuit mechanism and a multi-channel coil assembly; the adjustable magnetic circuit mechanism can flexibly adjust the distance between the magnetic field generating part and the surface coating of the high-temperature weld of the detected object to adapt to the optimal working magnetic field of the coating; the multi-channel coil assembly comprises at least two independent coils insulated from each other, each independent coil constitutes an independent detection channel, and the size of the independent coil is matched with the size of the bottom surface of the magnetic field generating part to realize local concentrated detection. The application can solve the technical problems that the existing electromagnetic ultrasonic transducer is limited in transduction efficiency due to the mismatch between the magnetic field strength and the optimal working magnetic field required by the magnetostrictive coating, and the sensitivity of micro defect detection is insufficient due to the excessively large sound field action area of the single coil structure, improves the stability and reliability of the transducer in a high-temperature environment, and realizes efficient and accurate in-situ detection of high-temperature welds.

The utility model discloses a unicoil storage and splitting mechanism, including loading subassembly, material storage subassembly and splitting subassembly, material storage subassembly includes material storage plate, front baffle, front baffle cylinder, back baffle and back baffle cylinder, the front baffle is provided the feed end of material storage plate, and the both sides with front baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection, back baffle cylinder transmission connection. The rear baffle is arranged at the discharging end of the storage plate, the bottom of the rear baffle is in transmission connection with the rear baffle air cylinder, the splitting assembly comprises a splitting conveying belt and a splitting motor, and the splitting motor is in transmission connection with the splitting conveying belt. According to the utility model, the cut plastic single coil is temporarily stored through the storage assembly, enough cooling time can be provided for the coil, the problems of deformation and the like during subsequent binding are prevented, the production speed of a subsequent production line can be adapted, and the problem of material accumulation or material shortage is avoided; and the temporarily stored coils can be split and conveyed through the splitting assembly, so that the coils do not interfere with one another, and the feeding stability is improved.

This utility model discloses a single-coil magnetic latching relay drive circuit with strong anti-interference and anti-shoo-through characteristics. In the first bridge arm circuit, the emitter of transistor Q11 is connected to the power supply, the base is connected to the power supply through R21, and the collector is connected to the collector of Q13 through R13. The base of Q13 is connected to the collector of Q17 and connected to the collector of Q15 through R14. The collector of Q15 is connected to the base of Q18 through R23. The emitter of Q17 is grounded. The second bridge arm circuit adopts the same circuit structure as above, wherein the bases of Q15 and Q16 are connected to RELAY_ON and RELAY_OFF through corresponding resistors, respectively. RLY- is connected between Q11 and R13, and the base of Q12 is connected to RLY- through R19. RLY+ is connected between Q12 and R15, and the base of Q11 is connected to RLY+ through R20. This invention optimizes the analog signal triggering path and adds a shoot-through protection mechanism, thereby reducing hardware costs and improving environmental adaptability while ensuring circuit stability.

This facilitates the insertion and installation of stator coils, which are capable of carrying high currents, into the stator. [Solution] A single coil with a flat rectangular cross-section, formed by die casting or the like, is inserted in a stepped manner from the axial direction into the stator core for each phase.

The application discloses a series winding controller and method applied to a hybrid five-axis magnetic suspension bearing, and belongs to the field of magnetic suspension bearing control, and comprises 12 controllable switches, 10 windings and a power supply. The application controls the current size passing through each winding by changing the conduction time of each controllable switch in a switching cycle, and divides the 10 windings into five groups in a parallel mode of using two windings for the same degree of freedom, so as to realize the control of the 10 winding currents for controlling five degrees of freedom in the magnetic suspension bearing. The series connection mode of the five degrees of freedom windings only needs six bridge arms for control, and only two bridge arms are needed for controlling a single coil in the common bridge circuit, so that the utilization rate of the device is effectively improved.

A linear actuator (350) is described comprising (a) a housing (455); (b) a stator (460) with a permanent magnet arrangement (461) comprising at least one permanent magnet (462), wherein the stator (460) is fixedly attached to the housing (455); (c) a rotor (470) with an electromagnetic coil arrangement (471) comprising at least one electrically actuable single coil (472), wherein the rotor (470) is movably mounted relative to the stator (460) along a displacement axis (V1, V2); (d) a stationary heat sink (455) which is fixedly arranged relative to the stator (460); and (e) a movable heat sink (474) which is fixedly arranged relative to the rotor (470).A first heat dissipation path is formed between an inner side of the coil assembly (471) and the stationary heat sink (455), and a second heat dissipation path is formed between an outer side of the coil assembly (471) and the movable heat sink (474). Furthermore, a placement head (125) with at least one such linear drive (350) and a placement machine (100) with at least one such placement head (125) are described.

1. The name of the design product: earphone (new single ring). 2. The use of the design product: for receiving and playing audio signals, voice communication, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of electrical elements, and discloses a relay coil terminal leading-out structure which is used for a high-voltage direct-current relay, the high-voltage direct-current relay comprises a coil assembly and a yoke assembly, and the coil assembly is arranged in the yoke assembly. The relay coil terminal leading-out structure comprises a control panel and a leading-out assembly, and the control panel is arranged in the yoke assembly and used for being electrically connected with the coil assembly. The leading-out assembly is provided with a leading-out end, the leading-out end is electrically connected with the control panel assembly and used for being connected with an external circuit, the leading-out end is arranged on the outer side of the yoke assembly, a control panel does not need to be additionally arranged on the outer side of the yoke assembly, the overall size of the relay is controlled, and the development direction of miniaturization and integration of the relay is met. And convenience is provided for upgrading a single coil of the relay into double coils.

This invention relates to the field of steel coil production technology, and in particular to a method, system, equipment, and storage medium for full-process material tracking in the off-line area of ​​a cross-cutting production line. The system ensures the accuracy of identification and the authority of instructions at the production source by having a primary system generate unique tracking identifiers and production instructions for each material unit and synchronize these to a secondary system. The secondary system executes physical processing and transfer operations based on the production instructions and automatically collects real-time status data, achieving precise control and data acquisition of the production process and enabling flexible production functions such as multiple openings from a single coil. By associating the collected real-time status data with the corresponding unique tracking identifier, accurate process tracking data is formed, ensuring the continuity and consistency of material information in the transfer process. Ultimately, a full-link tracking information system indexed by unique tracking identifiers is constructed, significantly improving production transparency and management precision.

This invention discloses an oil-immersed transformer winding structure and winding device, relating to the field of oil-immersed transformer technology. It aims to solve the technical problem of functional limitations of coil groups in traditional oil-immersed transformer winding structures, including a lower clamp; an upper clamp is provided above the lower clamp via an iron core. This invention, by wrinkling the outer insulation layer of the coil group, effectively adapts the tension and tensile force of the bending arc during the bending process of the oil-immersed transformer winding onto the iron core. This method facilitates shape adjustment of the single coil group to adapt to coil groups with different structural shapes. Essentially, this method involves pre-processing the coil group under certain size specifications, and then adjusting it according to the actual specifications of the required oil-immersed transformer winding structure. Simultaneously, the wrinkling of the outer insulation layer during adjustment reduces the possibility of insulation layer damage.

The application relates to a superconducting reactor AC loss simulation method based on in-situ replacement, which comprises the following steps: for the reactor structure, a finite element method is used to replace the remaining superconducting coils except the superconducting coil winding to be analyzed into regular geometric structures in situ; a single coil three-dimensional simplified model and a fine model of the reactor structure are constructed, the inductance and magnetic field distribution parameters are solved through the single coil three-dimensional simplified model, the obtained inductance and magnetic field distribution parameters are combined, boundary conditions are set, the electric field and current density in the superconducting tape are solved through Maxwell equations, AC loss power is calculated, and the AC loss of the superconducting reactor coil winding is calculated. Compared with the prior art, the application can improve the efficiency and precision of the superconducting reactor AC loss calculation, provides a key basis for design optimization and performance evaluation, and effectively promotes the application of superconducting technology in the power system.

The application relates to a low-noise large-amplitude vibration table with simple structure, which solves the problems of complex structure, large noise, small amplitude and small load of the existing vibration table. The vibration table comprises a base, a circuit board arranged on the base, a product mounting seat movably arranged on the base and used for mounting a product to be tested, and a voice coil motor driving mechanism for driving the mounting seat to vibrate. The voice coil motor driving mechanism comprises a coil and a magnet. The coil is electrically connected with the circuit board. The included angle between the winding shaft of the coil and the vertical direction of the supporting shaft is less than 10 degrees. When the coil is electrified, the voice coil motor driving mechanism drives the coil mounting seat to rotate along the supporting shaft. When the coil is de-energized, the reset elastic member drives the coil mounting seat to reset. The product on the product mounting seat is driven to vibrate by at least one movable structure. Therefore, the overall structure is simple. The coil mounting seat rotates along the supporting shaft to drive the product on the product mounting seat to vibrate. The amplitude is large, the noise is small, and the load can be relatively heavy.

The embodiment of the utility model provides an inductor, a circuit board assembly and a household appliance. The inductor comprises a magnetic core, a single group of coils and two pins, wherein the magnetic core comprises a first magnetic column and two second magnetic columns. The two second magnetic columns are arranged at intervals in the first direction, the two ends of the first magnetic column are connected with the two second magnetic columns, the first magnetic column is in an arc shape, and the second magnetic columns extend along a straight line. The single coil is wound on the first magnetic column and the two second magnetic columns. And the two pins are connected to the two ends of the single group of coils. According to the inductor provided by the embodiment of the invention, the two linear second magnetic columns are arranged at the two ends of the arc-shaped first magnetic column, winding of the linear magnetic columns is denser and more uniform, and magnetic leakage is reduced while the inductance value is increased. When the inductor is installed on the circuit board and the extension direction of the second magnetic column is parallel to the thickness direction of the circuit board, the number of winding turns of a single coil is increased by increasing the extension size of the second magnetic column, and the occupied area of the inductor on the circuit board is not increased while the inductance value is increased.

The invention discloses an assembling method and device for a welding-free coil. The assembling method comprises the steps that the coil is positioned so that the coil can be within the detection range of a visual assembly; identifying the state of the coil through a visual component so as to judge whether the coil is qualified or not; if the coil is qualified, the stitch angle of the coil is identified through the visual assembly; and an angle compensation value is provided for a grabbing assembly according to the pin angle so that the grabbing assembly can assemble the coil and the shell at the correct angle. The visual assembly identifies the peak coordinates of the pins, calculates the height difference and the distance and compares the height difference and the distance with the preset threshold value, unqualified coils can be accurately screened out and scrapped, the problem that in the prior art, when multiple coils are pressed, a single coil fails and cannot be identified is solved, and the assembly quality is guaranteed from the source.

Described is a linear driver comprising: (a) a housing; (b) a support having a permanent magnet arrangement, the permanent magnet arrangement having at least one permanent magnet, the support being attached to the housing in a spatially fixed manner; (c) a rotor having an electromagnetic coil arrangement, the electromagnetic coil arrangement having at least one electric single coil, the rotor being movably mounted along a displacement axis with respect to the support; (d) a fixed heat sink arranged in a spatially fixed manner with respect to the bracket; and (e) a movable heat sink arranged in a spatially fixed manner relative to the rotor. A first heat dissipation path is formed between the inner side of the coil device and the fixed radiator, and a second heat dissipation path is formed between the outer side of the coil device and the movable radiator. An assembly head having at least one of the linear drives and an automatic assembly machine having at least one of the assembly heads are also described.

Various embodiments of the present disclosure provide a coil-wrapping system that simultaneously employs separate multiple film rolls to simultaneously wrap separate films around a single coil while the coil is rotated about its longitudinal axis.

The invention provides a frameless superconducting coil winding device and method.The frameless superconducting coil winding device comprises a winding shaft, an adjusting mechanism and a winding mechanism, the adjusting mechanism is arranged on the surface of the winding shaft, the winding mechanism is arranged on the inner side of the adjusting mechanism, and the adjusting mechanism comprises a transmission assembly, an assembling assembly, a positioning assembly and a mounting assembly; the transmission assembly is arranged on the surface of the winding shaft, the assembling assembly is arranged on the surface of the transmission assembly, the positioning assembly is arranged on the rear side of the transmission assembly, and the mounting assembly is arranged on the side, away from the transmission assembly, of the positioning assembly. By adopting the frameless superconducting coil, the weight of a magnet can be effectively reduced, the production cycle is shortened, the cost is reduced, the size precision of a single coil can be ensured, the high requirement for the mutual position size of a plurality of coils can be ensured, quick operation and demolding can be realized, and the batch manufacturing requirement can be met.