46 results about "Litz wire" patented technology

The invention relates to the technical field of Litz wire processing equipment, in particular to a Litz wire surface covering film stripping device which comprises a fixing frame. The cutting mechanism is used for cutting the litz wire; the angle adjusting mechanism is used for adjusting the angle of the cutting mechanism; the waste treatment mechanism is used for treating accumulated waste; the angle adjusting mechanism is arranged on the fixing frame, the cutting mechanism is arranged on the angle adjusting mechanism, and the waste treatment mechanism is arranged on the fixing frame. The arranged cutter is matched with the shovel-shaped clamp at the front end, the cutter can accurately cut into a gap between a wire meter and a thin film, only an insulating film is cut without damaging an internal tiny enameled wire, meanwhile, the angle of the cutting mechanism can be adjusted through the angle adjusting mechanism according to the surface condition of the litz wire, and it is ensured that the cutter is always located at the optimal working position; and meanwhile, the key part of the cutter is wrapped by the clamp, so that the cutting effect is ensured, the scratch risk is reduced, and the potential safety hazard in the manual operation process is reduced.

Disclosed are a high power flux cancelling current steering inductor without a gap and processes of making and using same. When properly configured and wired such inductors, separate the AC component and DC component of a high power current thus allowing the smaller AC fraction of the overall current to be carried by much smaller cross-sectional litz wires. Such a high power flux cancelling current steering inductor without a gap are more efficient at avoiding core saturation compared to standard inductors, do not require core gaps, yet they are less expensive without the need for large cross-sectional litz AC carrying wires. In addition to the aforementioned benefits, such a high power flux cancelling current steering inductor without a gap permits the levels of AC and DC current to be efficiently monitored as such currents are separated.

The application relates to a detection instrument for measuring the bending force of a large-size Litz wire and a detection method thereof, and belongs to the technical field of Litz wire detection. The detection instrument comprises a detection table, an automatic wire feeding device for driving the Litz wire to feed along the x-axis direction, a center shaft assembly arranged on the detection table and used for fixing the bending center position of the sample wire, a fixed clamping assembly arranged on one side of the center shaft assembly, a bending assembly arranged on the other side of the center shaft assembly, a wire cutting device arranged between the fixed clamping assembly and the center shaft assembly and used for cutting the Litz wire into a plurality of sample wires, a force detection device used for detecting the stress data of the sample wire in the bending process in real time, and a control processing system in signal connection with the bending assembly and the force detection device. The application replaces the traditional visual inspection or hand feeling test by accurately quantifying the soft bending force of the Litz wire, improves the reliability and stability of the detection, and improves the automation degree of the detection and reduces the labor intensity.

The utility model discloses a high-coupling structure of a single-path transformer, which belongs to the technical field of power electronics and is characterized in that primary windings and secondary windings of the transformer are wound by enameled wires or Litz wires in a layered manner, and in each layer, the primary windings and the secondary windings are respectively wound on a magnetic core; a primary winding wire coil and a secondary winding wire coil which are formed after coiling are closely adjacent to each other up and down; one or more copper ring sheets are arranged between the layers; the primary windings between the adjacent layers adopt a parallel structure, the secondary windings between the adjacent layers adopt a parallel structure, and the primary windings and the secondary windings between the adjacent layers are alternately stacked. Compared with the prior art, the primary and the secondary are crossed and stacked in the scheme, so that not only can full coupling be realized, but also the peripheral size can be remarkably reduced. In addition, the copper ring sheets are smaller in size and occupied space, so that the transformer is more compact, the primary and secondary coupling degree is improved, the copper strips have better heat dissipation performance, the secondary temperature rise of the transformer can be effectively reduced, and the transformer is very suitable for a narrow space.

This invention relates to the field of power electronic transformer winding technology, and more particularly to a strip-shaped Litz wire for solid-state transformers and its preparation method. The strip-shaped conductive core is composed of multiple enameled copper single wires; and a composite insulating coating covers the outer surface of the strip-shaped conductive core. The composite insulating coating comprises a polyimide matrix and chopped silica fibers dispersed in the polyimide matrix, with zinc oxide quantum dots anchored on the surface of the chopped silica fibers. The advantages of this invention are that by anchoring zinc oxide quantum dots to the surface of the chopped silica fibers and dispersing them in the polyimide matrix, the quantum dots are uniformly dispersed, forming a nonlinear conductivity network, suppressing partial discharge initiation, and improving corona resistance lifetime. The chopped silica fibers form a rigid skeleton in the coating, improving mechanical strength. The chemical bonding between the quantum dots and the fiber surface enhances interfacial bonding, further improving mechanical properties. Simultaneously, this structure avoids insulation defects introduced by nanoparticle aggregation, maintaining a high breakdown field strength and partial discharge initiation voltage.

The application discloses a kind of litz wire winding intelligent design optimization methods, and the litz wire winding ac resistance and porosity are obtained by neural network and hfss, the model of litz wire winding is constructed using hfss simulation software to simulate the ac resistance of litz wire winding under different materials, different number of turns, different litz wire winding radius and different frequency, to complete the training data and test data used to litz wire winding neural network model. Manual grid division is used to simplify the solving steps and time, and the accuracy is ensured. The litz wire winding neural network model is used to automatically train and test using particle swarm optimization algorithm to improve the network model, and finally the litz wire winding neural network model can quickly and accurately obtain the required litz wire winding ac resistance. The application can be used to quickly and accurately obtain the litz wire winding ac resistance under different requirements, reduce the amount of calculation and working time, greatly improve the efficiency.

The application relates to the technical field of transformers, and discloses a loss optimization method and system for a solid-state transformer Litz wire winding. The method comprises the following steps: collecting a non-sinusoidal wave excitation signal, performing Fourier transform to obtain a frequency spectrum, and determining distribution characteristic data; adopting a genetic algorithm in combination with a frequency loss model to take Litz wire structure parameters as optimization variables, obtaining a structure parameter set for initially minimizing total loss and iteratively matching, and obtaining the Litz wire structure parameters; simulating the current flow path between winding layers through electromagnetic field simulation, and constructing a frequency-dependent current distribution model; extracting the loss density of each layer, identifying the loss concentration area, fine-tuning the equivalent capacitive reactance parameters to redistribute the current until the interlayer loss is balanced, and obtaining a final balanced distribution scheme; and finally, verifying the energy transmission under multiple working conditions, calculating the overall efficiency and temperature rise, and outputting the Litz wire structure parameters and winding layout that pass the verification. The application improves the energy transmission efficiency of the solid-state transformer under non-sinusoidal wave excitation.

The application provides a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses a litz wire winding device and a litz wire winding method, and relates to the technical field of cables. The application discloses

The invention provides a pre-shaped litz wire squaring process, and relates to the technical field of cables, the pre-shaped litz wire squaring process comprises a pre-shaped mold, the pre-shaped mold comprises two wire stroking wheels, each wire stroking wheel comprises a wheel shaft and a wheel body fixed on the wheel shaft, the wheel body comprises two eccentric cones, and the small-diameter ends of the two eccentric cones are concentrically connected; the axes of the wheel shafts simultaneously pass through the eccentric positions of the large-diameter ends of the eccentric cones and the circle center positions of the small-diameter ends of the eccentric cones, the two eccentric cones on the same wheel body are distributed in a central symmetry mode with the radial lines of the small-diameter ends of the eccentric cones as the symmetry center, the wheel shafts of the two wheel bodies are parallel to each other, and the two wheel bodies form a 180-degree phase angle. The two wheel bodies rotate reversely at the same speed to form a pre-shaping wire passing channel with a rectangular minimum outline among the four eccentric cones, a stranded wire passing through a pre-shaping mold is heated, and then the stranded wire is shaped through a four-wheel squaring mechanism. The method has the advantage that the linear stability can be improved.

The present application relates to circular litz wire high frequency loss calculation technology, it is especially disclosed a kind of circular litz wire high frequency loss three-dimensional fast calculation method, the method includes the following steps: step one, understand the relationship between skin effect loss, internal proximity effect loss and external proximity effect loss;Step two, based on one-dimensional electromagnetic field theory and using Tourkhani model to obtain the loss expression of any circular litz wire unit length conductor in high-frequency magnetic element window;Step three, using finite element method to establish the two-dimensional finite element equivalent model of magnetic core window, extract external magnetic field and calculate external magnetic field;Step four, construct three-dimensional loss model considering the influence of litz wire's torsion inclination angle on external magnetic field.The beneficial effects of the present application are to realize the accurate and efficient calculation of circular litz wire winding loss in a wide frequency range.

A novel litz wire packaging structure comprises a litz wire combination body, a packaging outer skin layer wrapping the litz wire combination body and a gap filling body filled between the litz wire combination body and the packaging outer skin layer, the gap filling body and the packaging outer skin layer are of an integrally-formed structure, the packaging outer skin layer is an insulating layer, and the gap filling body and the packaging outer skin layer are of an integrally-formed structure. The litz wire assembly is composed of at least two strands of litz wire bodies twisted with each other, each strand of litz wire body is of a structure formed by twisting a plurality of wire cores into a whole, and the novel litz wire packaging structure has the advantages of being efficient, stable and reliable.

The application discloses a wireless power transmission coupling mechanism, which comprises a magnetic core and a plurality of coils which are located in different planes and connected in sequence, four coils in each plane each comprise an inner coil unit and an outer coil unit which are composed of Litz wires, and the outer coil unit and the inner coil unit are coaxial and coplanar; the single-plane cross series coils and the multi-plane same-direction series coils of the plurality of coil units are used to reasonably configure the current directions of the coils in a single plane and the coils in different planes, to enhance the self-inductance of the coils per unit area, to improve the transmission power energy of the coils, and to avoid the magnetic field coupling between the multi-plane coils, and the control difficulty of the coils is reduced.

An exemplary embodiment of the present invention provides a stylus pen including: a body; a conductive tip configured to be exposed from an inside of the body to an outside thereof; and a resonance circuit connected to the conductive tip to resonate an electrical signal transferred from the conductive tip. An inductor unit of the resonance circuit includes a ferrite core and a coil wound in multiple layers over at least a portion of the ferrite core. The ferrite core includes nickel, and the coil can be formed by a litz wire with adjacent winding layers that are wound to be inclined in a zigzag form.

The invention relates to the technical field of wire rod production surface defect detection, in particular to a Litz wire surface defect detection system and method, and the system comprises an image collection module which is used for continuously collecting high-definition images of the surface of a Litz wire; the image processing and analyzing module is used for receiving and processing the image data transmitted by the image acquisition module; and the control and execution module is used for receiving and comparing the data transmitted by the image processing and analysis module and carrying out abnormity alarm, trend early warning and data recording. According to the method, the width, the pitch and the angle of the Litz wire are synthesized into a twisting quality index (TQI) for judgment by adopting a mechanical vision detection matching algorithm, an image is analyzed by utilizing a mode of combining a morphological opening operation and a PCA dimension reduction algorithm, high-robustness and high-precision detection is realized, quantitative detection of the pitch is realized, and the detection precision of the Litz wire is improved. The problems that existing visual detection is poor in stability and low in precision, and the pitch is difficult to quantify are solved.

Systems and methods are disclosed for an aluminum litz wire. More specifically, there is disclosed an aluminum litz wire wherein the individual aluminum strands therein have insulating layers applied via a corona discharge process.

The invention relates to a 5G network transformer coil manufacturing method which comprises the following steps that S1, three magnetic cores are provided to serve as T1, T2 and T3 respectively, each magnetic core is of a composite magnetic core structure, and an air gap is formed in each magnetic core; s2, a flat enameled Litz wire is adopted to wind coils, an isolation transformer coil is wound on the magnetic core T1, a common mode inductance coil is wound on the magnetic core T2, a common mode inductance coil is wound on the magnetic core T3, and the transformer coil on the magnetic core T1 adopts a six-wire three-twisted-wire winding technology; s3, the outer layer of a coil assembly obtained after coil winding is completed is coated with a copper foil shielding layer, the manufacturing method of the 5G network transformer coil is superior to an existing scheme in the aspects of high-frequency performance, anti-interference capacity and chip compatibility, and the actual application requirement of 5G communication equipment can be better met.

The utility model relates to the technical field of wires and cables, in particular to a stainless steel band flexible supporting and magnet strengthening litz wire, which comprises a litz wire body, the litz wire body comprises a conductor part arranged in the litz wire body, and an insulating part is arranged outside the conductor part in a matched manner. The sheath part is arranged outside the insulating part, the conductor part is sequentially provided with a plurality of groups of integrated cables, through reasonable structural design, the conductivity, corona resistance, supporting and reinforcing performance and safety performance of the wire are effectively improved, and the wire is suitable for use requirements in a strong magnet environment.

The invention relates to a power cable (20) comprising:-a hybrid conductor (21) comprising:-a central litz wire portion (22) comprising a plurality of electrically conductive strands (23) electrically insulated from each other; -an annular portion (25) comprising a plurality of electrically conductive strands (26) that are not electrically insulated from one another, the calculated thickness of the annular portion (25) being less than or equal to the skin thickness (delta); and-an insulator (27) arranged around the hybrid conductor (21).

Am aerosol-generating device (12) comprising a cavity (41) that is configured to: removably receive at least a portion of a first aerosol-generating article (14), the first aerosol-generating article (14) comprising a first susceptor (31), and a first aerosol-forming substrate (26); and removably receive at least a portion of a second aerosol-generating article (114), separately from the first aerosol- generating article (14), the second aerosol-generating article (114) comprising a second susceptor (131), and a second aerosol-forming substrate (126), the second aerosol-forming substrate (126) being different from the first aerosol-forming substrate (26). The aerosol-generating device (12) further comprises a DC power supply (44), and an inductive heating arrangement (45) connected to the DC power supply (44). The inductive heating arrangement (45) comprises an inductor coil (42) comprising a litz wire, and the inductor coil (42) is arranged to generate an alternating magnetic field in the cavity (41) to heat a susceptor (31, 131) in a portion of an aerosol- generating article (14, 114) received in the cavity (41). The aerosol-generating device (12) further comprises power control electronics (43) configured to control the supply of power from the DC power supply (44) to the inductive heating arrangement (45) in a first heating profile, the first heating profile generating an alternating magnetic field in the cavity (41) that causes heating of the first susceptor (31) of the first aerosol-generating article (14) when the first aerosol-generating article (14) is received in the cavity (41). The power control electronics (43) are further configured to control the supply of power from the DC power supply (44) to the inductive heating arrangement (45) in a second heating profile, different to the first heating profile, to generate an alternating magnetic field in the cavity (41) that causes heating of the second susceptor (131) of the second aerosol-generating article (114) when the second aerosol-generating article (114) is received in the cavity (41).

The invention enables efficient wireless power transfer, and charging of devices and batteries, in a manner that allows freedom of placement of devices or batteries in one or multiple dimensions. Provided is a base unit for wireless power transfer or charging through a time varying magnetic field. The unit typically includes a magnetic material or layer that guides magnetic flux generated by a charger coil as to create a preferential path for returning magnetic flux from a receiver coil in one or multiple dimensions. The receiver may include a magnetic core having a magnetic permeability exceeding 1 with copper Litz wire around a ferrite core. With power receivers proximate to the base unit, the base unit coil may inductively generate a current in receiver coils or receivers associated with the power receivers. Uni-directionally or bi directionally wireless communication protocols include NFC, Bluetooth, WiFi, and etc. control and optimize power transfer therebetween.

The invention relates to a small or micro motor, in particular to a prefabricated stator disc made of an inorganic silicon material and a motor. An inorganic silicon material stator disc with a prefabricated winding groove is formed by melting and sintering an inorganic silicon material, the surface of the stator disc is provided with a groove adaptive to the direction of a winding, and after inorganic silicon powder is pressed and before high-temperature sintering, the groove is in a green body state, or when glass is in a molten / semi-molten plastic state, the groove is formed in the surface of the stator disc. A groove conforming to a winding path is pressed at a time by using a precision mold, and then sintering and shaping are carried out. A winding of the motor adopting the stator disc is a flat copper wire or a litz wire. The comprehensive performance of the motor stator and the motor is far better than that of an existing product under force, heat and electricity multi-physics field coupling.

The application provides a wireless charging box and a winding structure of a Litz wire, which makes the winding of the Litz coil reliable and convenient, and improves the efficiency of product assembly. The application comprises a cover plate, which comprises an upper cover plate and four surrounding side plates, the four surrounding sides of the upper cover plate are respectively provided with corresponding side plates, and adjacent side plates are connected to form an overall contour edge with a height; and a Litz coil; one corner side of the upper cover plate is respectively provided with a first wire inlet and a second wire outlet arranged at intervals, and the lower surface area of the upper cover plate is arranged with a plurality of spiral lower convex rings, cavities for clamping the Litz coil are formed between adjacent spiral lower convex rings, the plurality of spiral lower convex rings are arranged from outside to inside, and the end of the innermost spiral lower convex ring is provided with a guide lower convex, the guide lower convex faces the second wire outlet located at the corner position, and the guide lower convex is lower than the overall lower surface of the spiral lower convex ring.

The utility model belongs to the technical field of wireless power transmission, and particularly relates to a pressure-resistant watertight wireless power transmission magnetic coupling mechanism which comprises a transmitting coil module and a receiving coil module, the transmitting coil module comprises a transmitting magnetic core support, and the receiving coil module comprises a receiving magnetic core support. The transmitting magnetic core support and the receiving magnetic core support are both arc-shaped platy bodies, the concave face of the transmitting magnetic core support and the convex face of the receiving magnetic core support are each provided with a set of ferrite magnetic cores, and the outer side face of each set of ferrite magnetic cores is provided with a litz coil matched with the corresponding ferrite magnetic core. The magnetic core support, the ferrite magnetic core corresponding to the magnetic core support and the litz coil corresponding to the magnetic core support are wrapped with a glue pouring plastic package body, and solid bodies formed by glue pouring are arranged in the glue pouring plastic package body and the glue pouring plastic package body. According to the utility model, a tile-shaped structure is adopted, the requirement of conformal installation equipment at a user can be met, the requirements of underwater pressure resistance and sealing can be met, and reliable operation of a wireless electric energy transmission system in an underwater environment is ensured.

The application provides a sound device of a voice coil of a Litz wire, and relates to the technical field of sound devices, which comprises a cone skeleton, a diaphragm, a voice coil and a magnetic circuit assembly, the magnetic circuit assembly comprises a magnetic conducting column, a mounting hole located at the center of the magnetic conducting column and a magnetic source located in the mounting hole, the magnetic conducting column has an annular magnetic gap located outside the mounting hole, the voice coil is partially located in the annular magnetic gap, the magnetic source is mounted on a mounting column in the mounting hole, the mounting column penetrates through both sides of the diaphragm, the magnetic conducting column and the voice coil are both fixed on one end of the mounting column located inside the diaphragm, and the end of the mounting column close to the outside of the diaphragm is fixedly connected with the cone skeleton; the voice coil comprises a flexible rubber sleeve, the flexible rubber sleeve comprises a cylindrical segment and a tapered cylindrical segment, a coil is pasted on the inner wall surface of the cylindrical segment, the coil is a rigid piece wound by a pressed square Litz wire, and the small-diameter end of the tapered cylinder is fixedly connected with the mounting column; and the diaphragm is connected to the outside surface of the end of the cylindrical segment close to the tapered cylindrical segment. The application has the advantages of simple structure and the like.

Improved Planar Litz Coil of a Second Type: This coil is supported by a printed circuit board consisting of a stack of at least two bifacials, each bifacial having two conductive layers etched to present a plurality of tracks. This coil comprises a bundle, said bundle having a plurality of strands, each strand having a plurality of wires, each wire having a single strand, each strand resulting from the connection of several tracks etched on different conductive layers of the printed circuit board. Each strand of the planar Litz coil results from the association of identical unit elements (251), a unit element extending radially between an inner and an outer periphery of the planar Litz coil, a unit element having a track (271 to 276) for each strand of each wire in the strand. Figure for the abbreviation: Figure 5

To provide a conductor wire that can maintain a bent shape while using a small diameter Litz wire. [Solution] A conductor wire 1 comprising a central conductor wire 2 and an outer layer conductor wire 5 arranged on the outer circumference of the central conductor wire 2, wherein the outer layer conductor wire 5 is composed of a plurality of outer layer strands 6, the diameter of the central strands 3 constituting the central conductor wire 2 is larger than the diameter of the outer layer strands 6, and a coating 7 is formed on the outer layer strands 6.

The application discloses an aviation litz wire cable abrasion resistance testing device and relates to the technical field of litz wire cables.The existing litz wire cable abrasion resistance testing device cannot conveniently replace and clamp litz wires according to different cross-sectional diameters before litz wire cable abrasion resistance testing, and cannot adjust the corresponding pressure and abrasion resistance of the litz wire during testing.The aviation litz wire cable abrasion resistance testing device comprises a tension adjusting mechanism, a cable mounting mechanism and a cable main body, the middle part of the tension adjusting mechanism is provided with a pressure adjusting support mechanism, the upper end surface of the pressure adjusting support mechanism is provided with a synchronous friction mechanism, and the two ends of the synchronous friction mechanism are provided with two cable mounting mechanisms on the upper end surface of the tension adjusting mechanism.The litz wire is positioned and clamped, the replacement and tension adjustment of the litz wire are facilitated, the pressure and friction degree of the litz wire can be adjusted according to the requirements of the abrasion resistance testing, and the contrast experiment is facilitated.

Improved Planar Litz Coil of a First Type: This coil is supported by a printed circuit board consisting of a stack of at least two bifacials, each bifacial having two conductive layers, each conductive layer being etched to present a plurality of tracks. This coil comprises a bundle, said bundle having a plurality of strands, each strand having a single wire, each wire having a single strand, each strand resulting from the connection of several tracks etched on different conductive layers of the printed circuit board. Each strand of the planar Litz coil results from the association of identical unit elements (151), a unit element extending radially between an inner and an outer periphery of the coil, a unit element having a single track. Figure for the abbreviation: Figure 4

Structures, devices, and methods for wireless power transfer systems are described. A structure can include a plurality of strands arranged into a first coil layer and a second coil layer. The plurality of strands can be formed on a parallel path surrounding a center of the structure. The plurality of strands can extend away from the center on the first coil layer. The plurality of strands can extend towards the center on the second coil layer. For every fixed interval along a length of the structure, a first strand among the plurality of strands can be looped from the first coil layer to the second coil layer and a second strand among the plurality of strands can be looped from the second coil layer to the first coil layer.

This invention discloses a coupling mechanism with magnetically blocking gaps and its parameter design method, belonging to the field of magnetic coupling transmission technology. It includes a transmitting coil and a magnetic core. The main body of the transmitting coil is flat against the upper surface of the magnetic core. The transmitting coil is integrally wound from a single Litz wire in a combination of a Q-type coil and a DD-type coil. Through-holes are formed on the magnetic core, allowing the main body of the transmitting coil to fit against the magnetic core without increasing the overall thickness of the transmitting coil. Magnetic blocking gaps are formed along the wall of each through-hole in the magnetic core, penetrating both the upper and lower surfaces of the magnetic core. These gaps block the circulating magnetic flux generated by the coil within the through-hole in the magnetic core, thus preventing the formation of eddy currents and the resulting heat generation. This significantly improves the local problems of the magnetic core in the coupling mechanism without affecting the system's coupling coefficient and transmission performance.