129 results about "Conductor Coil" patented technology

The invention provides a test method and device for a motor active short-circuit relay, and a storage medium. The method includes the steps: performing the zero speed detection of a motor after a motor controller completes a low-voltage power-on operation, wherein when the motor controller is powered down, a first relay and a second relay are both switched on; controlling the second relay to be turned on if the motor passes the zero speed detection, and injecting a first excitation signal at the control ends of a first phase winding and a third phase winding through the motor controller; performing injection detection of the first excitation signal to determine whether the first excitation signal is successfully injected or not; controlling the first relay to be turned on if the first excitation signal is successfully injected, and obtaining a voltage across two ends of the first relay; and judging whether the power-on test of the first relay is successful or not according to the voltage across two ends of the first relay. The method can realize the turn-on test of the short-circuit relay, and ensures the reliability of the active short-circuit function of the vehicle motor duringdriving.

The invention relates to a cooling structure for an ultraprecise linear motor and belongs to the technical field of linear motors. The cooling structure solves the problem of proneness to heat exchange with environment caused by high side temperature of two-side surface-mounted cooling structures of existing linear motors. The cooling structure comprises a winding supporting portion, a winding and a heat conductive portion, wherein the winding is fixed on the surface of the winding supporting portion, the heat conductive portion is arranged on the surface on the outer side and fixedly connected with the winding supporting portion, the heat conductive portion is a copper foil ring which fits the outer profile of the winding and is sleeved and fixed on the surface on the outer side of the winding, or the heat conductive portion is a copper foil heat conductive ring formed by arraying multiple copper foil sections in a dispersed manner, the copper coil heat conductive ring fits the outer profile of the winding, and each copper coil section is fixed on the surface on the outer side of the winding. The cooling structure for the ultraprecise linear motor is suitable for cooling of linear motors.

The invention discloses a low-loss superconducting motor and a design method thereof, and belongs to the technical field of superconducting motors. A low-loss superconducting motor comprises a vacuum chamber, a stator assembly and a rotor assembly are arranged in the vacuum chamber, and a protective cover is arranged between the stator assembly and the rotor assembly. One of the stator assembly and the rotor assembly is provided with a constant conductor coil, the other one is provided with a superconductor coil, the superconductor coil applies direct current, and the constant conductor coil applies alternating current. Meanwhile, the invention discloses a design method based on the superconducting motor, the low-loss superconducting motor and the design method thereof are adopted, an air gap between the stator assembly and the rotor assembly is small, a high magnetic field is easy to achieve, Joule loss of a common conductor coil is reduced, an air or water cooling pipeline can be omitted, and temperature control is easy.

The invention relates to an external field intelligent regulation and control photocatalytic hydrogen production integrated device and system. The device comprises a Fresnel lens; the double-layer vacuum glass tube comprises an outer-layer glass tube, an inner-layer glass tube and a vacuum layer located between the outer-layer glass tube and the inner-layer glass tube, and the inner-layer glass tube is connected with an external water source and the separation module; the Helmholtz coil comprises two conductor coils, and the two conductor coils are symmetrically arranged at the two ends of the outer-layer glass tube in a sleeving mode and are communicated with an external power source; the photocatalyst is arranged in the inner-layer glass tube and is positioned at a strip-shaped light band of the sunlight focused by the Fresnel lens; the separation module comprises a hydrogen separation membrane and a gas outlet and is used for efficiently separating gas generated by reaction; the Fresnel lens is connected with the double-layer vacuum glass tube through the fixing support and located on the upper side of the double-layer vacuum glass tube. The Helmholtz coil is used for generating a magnetic field to improve the photo-generated charge separation efficiency in the photocatalytic reaction process, so that the hydrogen production efficiency is improved. The efficiency of photocatalytic reaction hydrogen production can be improved through precise regulation and control of an external field.

The invention discloses a half-open type thrust magnetic levitation bearing. The bearing comprises a first magnetic ring, a second magnetic ring and a third magnetic ring, wherein the first magnetic ring, the second magnetic ring and the third magnetic ring are arranged in annular and laminating manners so as to form an annular magnetic pole; the magnetic pole of each of the magnetic rings is different from that of the adjacent magnetic ring; a first winding and a second winding of the annular magnetic pole are wound according to a predetermined half-open way, the lower part of the middle magnetic pole is recessed inwards so as to generate a winding space which meets predetermined conditions; and the magnetic pole arranged at the upper end extends, and thus, a complete circle of magnetic pole is formed after splicing. Based on the bearing, continuity and consistency of magnetic field strength of the magnetic poles of the half-opened axial thrust bearing can be basically reserved, and the half-open type thrust magnetic levitation bearing can be applied to high-speed rotation machines; and moreover, a more flexible mounting way can be obtained, particularly to large-size rotation machines.

The invention belongs to the technical field of low-voltage power grid emergency repair, and proposes a low-voltage distribution network fault emergency repair wire-laying device and method. The invention has multiple wire-laying mechanisms on a central axis, and the wire-laying mechanisms include a limit assembly arranged on the central axis. After the multiple limit assemblies are arranged and the elastic rod is connected to the isolation rod, the wire coil can be separated independently, thereby avoiding the problem that multiple wires are embedded together and affect the wire-laying effect; at the same time, when laying out the wire, the adjustment assembly rotates relative to the limit assembly to put the wire on the wire coil; when winding the wire, the central axis rotates to drive the entire limit assembly to rotate, and the wire is wound around the isolation rod and the elastic rod, thereby avoiding the contact between the wire and the original wire of the wire coil when winding the wire, avoiding the influence on the wire, making it easier to lay out the wire next time, and at the same time avoiding the pollution of the original wire of the wire coil by mud on the wire when winding the wire, thereby ensuring the cleanliness of the original wire of the wire coil.

The utility model provides a motor and a vehicle, the motor comprises a stator iron core and a winding installed on the stator iron core, the winding comprises a plurality of wire ring layers distributed along the circumferential direction of the stator iron core, each wire ring layer comprises a plurality of wires, the wires are obliquely arranged along the circumferential direction of the stator iron core, each wire comprises a welding part and an insulating section, each insulating section comprises a fitting part and a tilting part, one end of the fitting part extends out of the stator core, the tilting part is connected with the other end of the fitting part and the welding part, a gap is formed between two adjacent wires in the same wire ring layer, and the gap is larger than the fitting part at one end, close to the welding part, of the tilting part of the same wire. According to the utility model, the attaching part is arranged on the insulating section, so that the space is saved, the position relationship between the leads is more stable, and meanwhile, the tilting part is arranged, so that a creepage safety distance is formed between the welding parts of the adjacent leads in the same lead ring layer, and the probability of current generated between the two adjacent welding parts is reduced.

The invention provides a preparation method of an inductor and the inductor, and the preparation method comprises the following steps: (1) mixing a magnetic powder raw material with a glue solution, sequentially carrying out granulation and pressing to obtain a magnetic core, and carrying out primary curing on the magnetic core; (2) winding a conductor coil, soaking the conductor coil into an insulating liquid for insulating treatment to form an insulating layer, and then filling the conductor coil into the magnetic core; and (3) magnetic slurry is injected into the magnetic core in the step (2), secondary curing is carried out, and an inductor blank is obtained. The coil can be prevented from being deformed, and the parasitic capacitance of the inductor is greatly reduced through insulation protection treatment.

The invention discloses an electronic component and terminal equipment, the electronic component comprises a component main body, a first terminal electrode, a second terminal electrode and a coil conductor, the coil conductor is provided with an upper side conductor, a first side conductor, a plurality of first bevel edge conductors, a lower side conductor, a plurality of second bevel edge conductors and a second side conductor, the first beveled edge conductors are arranged corresponding to the first terminal electrodes, the first beveled edge conductors are obliquely arranged relative to the first side edge conductors and the lower edge conductor, an included angle is formed between every two adjacent first beveled edge conductors, the second beveled edge conductors are arranged corresponding to the second terminal electrodes, and the second beveled edge conductors are obliquely arranged relative to the second side edge conductors and the lower edge conductor. An included angle is formed between every two adjacent second bevel edge conductors, and the first direction is perpendicular to the second direction. By adopting the scheme of the invention, the total resistance of the coil conductor can be reduced, and the quality factor and the self-resonant frequency of the electronic component can be improved.

The invention discloses a nuclear fusion armored spiral tube superconducting magnet winding and mold falling system and a use method, and relates to the field of research and development of superconducting coils for nuclear fusion. Before mold falling, the armored conductor coil is supported by the supporting seat, the outer limiting column and the inner limiting block. During initial die falling, the coil rotates along with the rotary platform and falls into the groove. Along with increase of the die falling depth, the number of layers of the outer limiting columns is increased, the roller chain drives the supporting seat to descend, the number of the inner limiting blocks is correspondingly increased, and next-step die falling is completed. After die falling is completed, the coil clamp clamps the coil, the roller chain rotates reversely, the supporting seat ascends, and the inner limiting part and the outer limiting part are gradually withdrawn. According to the system, automatic mounting and dismounting of inner limiting are achieved through the chain wheel module, the outer limiting column technology is combined, the die falling size is accurately controlled, and manual operation inconvenience is reduced. Meanwhile, through upward movement of the longitudinal movement mechanism, the capital construction requirement for the pit is reduced, so that the production efficiency is improved, the personnel safety is guaranteed, and the platform building cost and period are reduced.

This utility model discloses a polypropylene extrusion molding device, relating to the field of plastic molding technology. The polypropylene extrusion molding device includes a polypropylene extrusion unit with a feed inlet. A first motor is fixedly connected to one end of the polypropylene extrusion unit, and a support frame is fixedly connected to the bottom of the polypropylene extrusion unit. When it is necessary to change to a different specification mold, the current to the magnetic conductor coil is cut off, causing the magnetic conductor to lose its magnetism and the magnetic attraction between it and the permanent magnet inside the mold to dissipate. At this time, the old mold can be directly removed. After replacing it with a new specification mold, the new mold is placed against the sealing plate and aligned with the extrusion hole. The magnetic conductor coil is then energized, causing it to regain its magnetism and re-establish magnetic attraction with the permanent magnet inside the new mold. The entire process requires no additional mechanical fixing structure; mold replacement can be quickly completed simply by switching the current on and off, significantly improving the device's adaptability to different product specifications.

The application discloses a voltage-limited overvoltage protection component with a recoverable electromagnetic drive tripping mechanism, which is composed of a voltage-limited overvoltage protector and an electromagnetic drive tripping mechanism. In a normal state, the normally closed contact of the electromagnetic drive tripping mechanism is in a closed state, which does not affect the normal working state of the voltage-limited overvoltage protector and the protection state under a normal intensity overvoltage. When an overvoltage occurs, a pulse current flowing through the voltage-limited pressure-sensitive resistor induces a current in the upper metal disc of the electromagnetic drive tripping mechanism, which is opposite to the direction of the spiral conductor coil of the lower electromagnetic drive disc, so that the upper metal disc of the lower electromagnetic drive mechanism induces an electromagnetic repulsive force with the lower electromagnetic drive disc, thereby causing the normally closed contact of the electromagnetic drive tripping mechanism to break, effectively inhibiting the continuous effect of a subsequent power frequency or direct current arc on the voltage-limited protector, prolonging the service life of the voltage-limited overvoltage protection component, and effectively realizing the safe use coefficient and prolonging the service life of the voltage-limited overvoltage protection component.

The utility model relates to the technical field of loudspeakers, and discloses a planar diaphragm loudspeaker, which comprises a cylindrical shell, an upper cover and a lower cover are clamped at two ends of the shell, an upper magnet is fixed at one end close to the upper cover, and a second support is fixed at one end close to the lower cover. According to the plane vibrating diaphragm loudspeaker, conversion from audio signals to sound waves is achieved through interaction of a magnetic field and current, meanwhile, high-quality output of sound is ensured through design optimization, the upper magnet and the lower magnet are fixed through the fixing rod, and therefore the plane vibrating diaphragm loudspeaker has the advantages of being simple in structure and convenient to use. The stability of the magnetic field is ensured, and the reliability of the loudspeaker is further improved.

A laminated coil component includes a laminated body including insulating layers laminated in a length direction and a coil, and first and second external electrodes each electrically connected to the coil. The coil includes coil conductors each laminated together with the insulating layer in the length direction and electrically connected to each other. A lamination direction of the laminated body and a coil axis direction of the coil are parallel to a first main surface which is a mounting surface of the laminated body. The laminated body satisfies B_W≤200 μm, B_L≤400 μm, and 200 μm≤B_T, or B_T≤200 μm, B_L≤400 μm, and 200 μm≤B_W where dimensions of the laminated body in the width, height and length directions are defined as B_W, B_T, and B_L, respectively, and an inner diameter area of the coil is 7500 μm2 or more.

The present invention discloses a processing device for improving the strength of cardboard, belonging to the field of corrugated cardboard processing, comprising a feeding part and a processing part, the processing part comprising a frame, a rubber roller and a plurality of paper guide rollers are installed in parallel on the frame, a paper reel is arranged on one side of the frame, the setting direction of the paper reel is parallel to the setting direction of the paper guide roller, the face paper used for processing the corrugated cardboard is placed on the paper reel, the end of the face paper is sequentially bypassed by each paper guide roller from top to bottom, and contacts with the rubber roller; the feeding part comprises a frame, a plurality of mounting columns for placing reinforcing wire coils are arranged on the frame in a vertical direction, a wire coil is installed on the frame, the end of the reinforcing wire passes through the wire coil, bypasses the rubber roller and adheres to the face paper. The present invention has the effect of adding reinforcing wires on the face paper, improving the strength of the face paper and the corrugated core paper connected to form corrugated paper, and effectively avoiding the cracking and collapse of the carton made of corrugated paper.

To provide a multilayer coil component that can improve a Q value.SOLUTION: A multilayer coil component includes an element body 2, a coil 3 disposed within the element body 2, and external electrodes 41 and 42 disposed on the surface of the element body 2. The coil 3 includes a plurality of coil conductors 30, each having a thickness and a path length. The external electrodes 41 and 42 are electrically connected to the coil 3. The plurality of coil conductors 30 include coil conductors 31, 34, and 37 and coil conductors 33 and 35. The coil conductors 33 and 35 have a path length longer than the path lengths of the coil conductors 31, 34, and 37, and have a thickness greater than the thicknesses of the coil conductors 31, 34, and 37.SELECTED DRAWING: Figure 2

Coils are divided into “n” systems. Each divided coils are arranged continuously within an angular range obtained by dividing 360 degrees by “n”. A single conductor is wound continuously in a circumferential direction to provide the coils in the same phase. Lead wires and winding start terminals of the coils of the conductors are connected by winding start extension wires. Lead wires and winding end terminals of the coils of the conductors are connected by winding end extension wires. Connection portions to the lead wires are fixed to the stator with clips. The clips are provided with the number “n”, and are located substantially middle to a dividing line that divides into “n”.

A magnetorheological damper, wherein the damper comprises a housing that is at least partially filed with a magnetorheological fluid, and a magnetorheological valve disposed within the housing. The valve includes a magnetically permeable core having at least one coil reservoir formed therein, and at least one conductor coil, wherein each conductor coil is disposed around a portion of the core within a respective one of the coil reservoir(s). The valve additionally includes a fluid flow path adjacent the conductor coil(s). The fluid flow path is structured and operable to allow the magnetorheological fluid to flow adjacent the conductor coil(s). The valve further includes at least one coil cover, wherein each coil cover is disposed over a respective one of the coil(s) such that the respective coil is protected from exposure to magnetorheological fluid flowing through the fluid flow path.

This invention relates to the field of aluminum coil transportation technology, and more particularly to an aluminum coil transportation device, comprising: a transport component including a vehicle body, a box mounted on the vehicle body, a receiving cavity within the box, a first partition and a second partition respectively mounted on the inner wall of the box, a shelf between the first and second partitions, and a placement plate within the box; a trigger component including an extension plate, a receiving groove on the inner wall of the extension plate, a movable plate movably mounted within the receiving groove, and a movable column below the movable plate; and an adjustment component, which, by setting up a box for storing aluminum coils and layering placement plates within the box, allows the aluminum coils to be placed separately to avoid collisions and friction, and can be transported using the vehicle body after being properly stored.

The present invention relates to the field of inductor technology, and proposes a PQ-like inductor suitable for automotive electronics with high heat dissipation and high space utilization, including a No. 1 outer frame magnetic core and a No. 2 outer frame magnetic core, a middle column magnetic core is arranged on the inner side of the No. 2 outer frame magnetic core and the No. 1 outer frame magnetic core, a conductor coil is wound around the outer surface of the middle column magnetic core, a connection structure is arranged between the No. 1 outer frame magnetic core and the No. 2 outer frame magnetic core, and a positioning structure is arranged on the inner surface of the No. 2 outer frame magnetic core and the No. 1 outer frame magnetic core. Through the above technical scheme, the EQ-shaped magnetic core generally used in current automotive electronics is solved. Although the traditional EQ shape has a good space utilization rate, the coil is wrapped in the magnetic core, which makes it difficult for the heat of the coil to dissipate; the traditional EQ-type magnetic core is difficult to press, and the molding density is relatively low, which leads to relatively poor electrical characteristics of the inductor; in addition, the middle column of the traditional EQ-type magnetic core is generally a cylinder, and there will be a certain space waste problem during assembly.

An embodiment provides a conductive wire comprising a conductive base material having a linear shape, and an insulating coating film covering the base material. At least a part of a portion of the insulating film on the outer surface thereof is composed of a nanostructure region composed of nanofibers or nanoparticles.

The present disclosure provides a coil component including a magnetic substrate and a conductor disposed inside the magnetic substrate or on a surface of the magnetic substrate. The coil component further includes an external electrode disposed on a surface of the magnetic base. The external electrode includes a base electrode having a bonding portion bonded to the conductor end portion. The joint portion expands to the same range as the conductor end portion. The area ratio of the (111) crystal plane in the bonding portion is smaller than the area ratio of the other crystal planes in the bonding portion.

The invention relates to an inductance device and electronic equipment. The inductance device comprises a main body which comprises a plurality of dielectric layers which are mutually stacked; and at least one first inner electrode layer, wherein the at least one first inner electrode layer is arranged on the corresponding dielectric layer. The first inner electrode layer comprises a coil and a connecting conductor, the coil is arranged on one surface, in the thickness direction, of the corresponding dielectric layer, the coil is coiled into a spiral structure, the coil comprises a circumferential extension section and an avoiding coil section, and the avoiding coil section and the connecting conductor are adjacent and arranged at intervals; the avoiding coil section is positioned between the connecting conductor and the center of the spiral structure of the coil; at least part of the first inner edge face, facing the radial inner side of the coil, of the avoiding coil section and the second inner edge face, facing the radial inner side of the coil, of the connecting conductor have the contour shape matched with each other. According to the inductance device and the electronic equipment, the inductance value and the quality factor of the inductance device can be improved.

A dipole field magnet comprising an inner volume shielded from the magnetic fields of the magnet due to the current flowing in the magnet. The dipole field magnet may comprise a plurality of ring-shaped superconductor coils configured to shield an inner volume between the ring-shaped superconductor coils from the magnetic field of the dipole field magnet. The dipole field magnet may form part of a fusion reactor and / or a magnetorquer and / or other dipole field magnet application. In some cases the dipole field magnet may comprise a plurality of ring-shaped superconductor coils configured to shield an inner volume between the coils from magnetic fields and / or the dipole field magnet may create a low field region in the inner volume.

This laminated coil component is provided with an element body, a coil disposed in the element body, an external electrode disposed on the surface of the element body, and a connection conductor disposed in the element body. The coil includes a plurality of coil conductors arranged in one direction. The external electrode is adjacent to the coil in a direction orthogonal to the one direction. The connection conductor electrically connects the coil and the external electrode to each other. The plurality of coil conductors includes an endmost coil conductor including an end of the coil and physically connected to the connection conductor. The connection conductor has a thickness greater than a thickness of a portion of the coil having the smallest thickness.

Coils are formed by winding conductors around the teeth of a stator, and a control device regulates the current supply to the coils in a k-phase manner. The coils are divided into n systems by n, and each n-divided coil is continuously arranged within an angular range obtained by dividing 360 degrees by n. The conductors are continuously wound in a circumferential direction to keep the coils in the same phase, with a number obtained by dividing a number x of teeth by n systems and k phases. The starting and ending terminals of the coils are connected by starting extension wires, and the ending and ending terminals of the coils are connected by ending extension wires. The connecting sections to the starting wires are fixed to the stator with clamps.The brackets are provided with the number “n” and are essentially located in the middle of a dividing line that is subdivided into “n”.

The invention relates to the technical field of transformers, in particular to a structure for improving the insulation performance of the end of an axial split coil, which comprises a wire and an insulation paperboard arranged on the outer side surface of the wire, and a cushion block is arranged at the top of the insulation paperboard. A structure formed by the insulating cardboard and the cushion block is connected with the other group of the insulating cardboard and the cushion block in a longitudinal end-to-end mode, and a supporting strip is arranged at one end of the cushion block and located on the inner side diameter of a coil of the wire; according to the invention, the insulating cardboard wraps the three surfaces of the wire, the upper and lower surfaces of the insulating cardboard are bonded with the corresponding cushion blocks, and the slotted end parts of the corresponding cushion blocks are clamped into the clamping grooves of the supporting strips, so that the purposes of shortening the supporting strips, keeping away from the angle rings of the transformer body and preventing the insulation from being damaged are achieved, and the fault tolerance is increased; the reject ratio increased due to errors in manual and production manufacturing processes is reduced, the production difficulty is reduced, and the insulation performance is further improved.

This invention relates to the field of superconducting motor technology, and in particular to a low-loss superconducting motor and its design method. The low-loss superconducting motor includes a vacuum chamber, a stator assembly, and a mover assembly. The stator assembly includes a stator support frame with a planar top structure and a superconducting coil disposed on the planar structure. A protective cover is disposed above the superconducting coil, and a radiative heat shield is disposed on the protective cover. The mover assembly is disposed between the protective cover and the radiative heat shield. The mover assembly includes a frame-shaped mover support frame and a constant conductor coil. The temperature of the constant conductor coil is controlled by controlling the emissivity of the radiative heat shield, and the surface emissivity of the protective cover is used to cool the constant conductor coil. The invention also discloses a design method based on a low-loss superconducting motor. The air gap between the stator assembly and the mover assembly is small, which facilitates the achievement of a high magnetic field, reduces the Joule loss of the constant conductor coil, eliminates the need for air or water cooling pipes, and facilitates temperature control.

A multilayer coil component includes an element body, a coil disposed in the element body, an external electrode disposed on a surface of the element body, and a connection conductor disposed in the element body. The coil includes a plurality of coil conductors arranged along a direction. The external electrode is adjacent to the coil 3 in a direction orthogonal to the direction D1. The connection conductor electrically connects the coil and the external electrode. The plurality of coil conductors includes an endmost coil conductor including an end of the coil and physically connected to the connection conductor. The connection conductor has a thickness larger than a thickness of a portion having the thickness smallest in the coil.