264 results about "Outer coil" patented technology

The invention discloses an external coiling device of a constant tension machine. According to the technical scheme, the winding device comprises a winding support assembly, wherein the winding support assembly comprises a first winding support and a second winding support which are oppositely arranged; the two ends of the cloth roller are connected with a driving rotating shaft and a supporting rotating shaft through detachable structures respectively, and the driving rotating shaft and the supporting rotating shaft are oppositely arranged on the first winding support and the second winding support respectively; the driving mechanism drives the cloth roller to rotate through a driving rotating shaft; the tension roller is used for receiving the cloth input from the weaving machine and conveying the cloth to the cloth roller; and the tension detection mechanism detects the tension value of the tension roller in real time through a tension sensor. According to the scheme provided by the utility model, large-package, constant-tension and efficient and synchronous winding operation with a weaving machine can be realized.

The invention relates to the technical field of radio frequency coils, and particularly discloses a device for improving the magnetic field intensity of a partial region of a radio frequency coil, and the device comprises an outer coil which serves as a main magnetic field generation element and is used for generating a basic magnetic field in the internal space of the device; the plurality of metal small rings are uniformly and coaxially distributed in the internal space of the outer side coil in an annular array mode, and each metal small ring has one or two of the following freedom degree adjusting modes at the same time so as to adapt to scanning samples of different sizes: radial stretching: each metal small ring can be independently subjected to stretching adjustment along the radial direction of the metal small ring; and axial rotation: each metal small ring can independently rotate around the tail end of the metal small ring. The method has high adaptability to scanning samples of different sizes and shapes, can achieve the remarkable enhancement of a magnetic field in a specific area, and effectively improves the radio frequency excitation efficiency and the receiving signal-to-noise ratio.

The car coupler comprises a movable shaft assembly and a fixed shaft assembly, the movable shaft assembly comprises a car coupler fixing base and a movable shaft, a two-stage spring damping system is arranged in the movable shaft assembly, and the two-stage spring damping system comprises a spring outer coil and a spring inner coil which are coaxially connected in a sleeved mode. The spring inner roll is embedded in the inner side of the spring outer roll, a top sleeve is arranged at the tail end of the spring inner roll, one end of the spring inner roll is connected with the spring seat, and the other end of the spring inner roll abuts against the top sleeve; the fixing shaft assembly comprises a cotter pin, a knuckle bearing supporting seat and a fixing shaft, the cotter pin penetrates through one end of the knuckle bearing supporting seat, and the knuckle bearing supporting seat is connected with one end of the fixing shaft through the cotter pin. The scheme has the characteristic of three-dimensional shock absorption, and full-degree-of-freedom buffer shock absorption in the axial direction, the radial direction and the rotating direction is realized by arranging the spring outer roll, the spring inner roll, the rubber pad and the knuckle bearing; the scheme also has intelligent grading response, and is safer through double-spring cooperation.

The high-pressure-resistant sensor comprises a shell, the shell comprises a body and a cover, a cavity is formed in the body, an opening is formed in one end in the length direction of the body, and the cover is detachably arranged at the opening to seal the shell; the sensing unit is contained in the cavity and comprises a double-coil vibration head module and a signal enhancement module, the double-coil vibration head module comprises a supporting framework, a magnetic tank and a coil assembly, the coil assembly is arranged on the supporting framework and comprises an inner coil and an outer coil which are coaxially arranged, and the diameter of the outer coil is larger than that of the inner coil; the axial directions of the inner coil and the outer coil are consistent with the length direction of the body; the signal enhancement module is coaxially arranged on the periphery of the double-coil vibration head module. According to the invention, the signal penetration capability is stronger, and a thicker metal shell can be penetrated; in addition, the magnetic tank and the coil assembly are wrapped by a strip-shaped amorphous nanocrystalline material with high magnetic permeability, so that the penetrating power of signals is effectively enhanced.

A stator for an electric axial flux machine includes a support structure with two support discs having star extensions, a rotor shaft bearing, and coil units each arranged between two pairs of star extensions following one another in the circumferential direction and are thereby fixed in the circumferential direction. Respective end portions of each laminated core of the coil units project beyond the support structure in the axial direction. Radially external fixing ends of the star extensions project radially outwards beyond the coil units. The coil units are clamped radially in the direction of the rotor shaft bearing by a clamping ring. A stator outer shell is arranged between the support discs and radially surrounds the coil units in the circumferential direction, the stator outer shell being attached to the fixing ends of the star extensions for conjoint rotation.

The embodiments of the present application disclose a drive assembly, a vehicle, and a control method, which relate to the field of vehicle technology and can solve the problem of being large in size and not being able to meet the high power density requirements of the vehicle. The drive assembly includes a motor and a clutch transmission group. The motor includes a stator with inner and outer coils, a rotatable outer rotor arranged on the outside of the stator, and a first inner rotor and a second inner rotor rotatable on the inside of the stator, and the first inner rotor and the second inner rotor are independently arranged. The clutch transmission group includes a first input end, a second input end, and a first output end and a second output end. The outer rotor and the first inner rotor are both transmission-connected to the first input end. The outer rotor and the second inner rotor are both transmission-connected to the second input end. The first input end and the first output end are transmission-coupled, and the second input end and the second output end are transmission-coupled. The first output end is used for transmission connection to the left wheel, and the second output end is used for transmission connection to the right wheel.

The invention discloses a coil excitation Hall thruster magnetic circuit structure suitable for a krypton working medium, relates to the technical field of aerospace technology and plasma propulsion, and solves the problems of low ionization efficiency and insufficient characteristic length of an existing Hall thruster after krypton is used. A magnetic conductive inner core is arranged at one end of a bottom plate, and a magnetic conductive cover is arranged at the other end; an inner magnetic pole is arranged at the upper end of the magnetic conductive inner core; an inner coil is arranged between the inner magnetic pole and the bottom plate and corresponds to the outer side of the magnetic conductive inner core; an outer coil is arranged between the outer magnetic pole and the bottom plate and corresponds to the inner side of the magnetic conductive cover; a ceramic channel is arranged between the inner coil and the outer coil; the bottom plate comprises an inner bottom plate and an outer bottom plate, the inner bottom plate and the outer bottom plate are coaxially arranged, and a bottom plate gap is formed between the inner bottom plate and the outer bottom plate. The characteristic length of a magnetic field in a discharge channel can be remarkably prolonged, the krypton ionization efficiency is improved, and meanwhile the structure of the thruster is simplified.

The present invention discloses a CS outer coil superconducting conductor forming machine, which relates to the technical field of four-sided extrusion forming machines, comprising: a forming machine main body, wherein a feed port and a discharge port are respectively provided on both sides of the forming machine main body, and a primary pressing device, a secondary pressing device and a shaping device are sequentially arranged in the forming machine main body along the direction from the feed port to the discharge port; two sets of three-roller centering pressing mechanisms are used to gradually transition the circular conductor cross-section to an approximately elliptical cross-section, and then the diameter is reduced to a square conductor cross-section through the cooperation of four second pressing roller assemblies and four shaping rollers, so that the conductor will not be damaged during the overall pressing process, and at the same time, it can be ensured that the pressing process is more uniform, thereby reducing production costs and improving production efficiency. At the same time, the close cooperation between the primary pressing device, the secondary pressing device and the shaping device can also achieve the overall tightness of the conductor forming machine, and can also ensure that the various structures can cooperate closely.

The invention provides a working mode reconfigurable power division chip circuit structure and a working method thereof. The circuit structure comprises an input port tap, two output port taps, a three-wire coupling spiral coil, a grounding pole and two control switches. One input port tap is connected with a middle coil of the three-wire coupling spiral coil to serve as an incident signal input port; the two output port taps are connected with two ends of an outer side coil of the three-wire coupling spiral coil to serve as output signal output ports; the two ends of the grounding pole are connected between the tail ends of the middle coils of the three-wire coupling spiral coils through the control switches respectively. The two control switches are used for switching the working mode of the working mode reconfigurable power division chip circuit structure. According to the power divider, the connection state of the three-wire coupling spiral coil and the grounding pole is changed by switching the on-off state of the control switch, switching of two working modes of power division and balun is achieved in the same compact circuit structure, and efficient utilization of the chip size is achieved.

The invention belongs to the technical field of motors, and particularly relates to a stator assembly with a surrounding winding structure, a manufacturing method and a motor. The stator assembly with the surrounding type winding structure comprises a stator iron core and a winding, a plurality of inner grooves are uniformly formed in the inner side face of the stator core in the circumferential direction, a plurality of outer grooves are uniformly formed in the outer side face of the stator core in the circumferential direction, and the inner grooves and the outer grooves are in one-to-one correspondence in the radial direction to form a group of winding grooves; a plurality of coils in the winding are wound in the inner groove and the outer groove in a surrounding mode, at least one circle of coil is arranged in any one winding groove, the inner circle of the coil is located in the inner groove in the axial direction, the outer circle of the coil is located in the outer groove in the axial direction, and the two ends, connected with the inner circle and the outer circle, of the coil are located on the two axial end faces of the stator iron core respectively. By optimizing the shape and layout of the winding, reducing the height of the winding, improving the utilization rate of the stator core and improving the heat dissipation performance, the size of the motor is remarkably reduced under the condition that the same power output is ensured.

Disclosed is an electromechanical actuator comprising an electric motor, a coupling element and a monostable clutch (23a). The clutch (23a) comprises a central shaft (43), a mobile member (44) and a coil (45), which generates a magnetic field when this coil is powered, so as to cause the member (44) to move relative to the shaft (43). The shaft (43) comprises a core (46), a ring gear (47) and a ring (52), arranged between the core (46) and the ring gear (47). The core (46) and the ring gear (47) are in contact with the member (44) only in a second position, so as to rotate the shaft (43) as a result of grip. Furthermore, the supply to the coil (45) is implemented continuously, only while the member (44) is moving between a first position and the second position, and while the member (44) is being held in the second position.

The application provides a dust-free heat dissipation micro motor, and belongs to the technical field of micro motors.The dust-free heat dissipation micro motor comprises a shell, an opening is arranged on one side of the shell, and a rotor component is rotatable in the interior of the shell.The rotor component is composed of an even number of winding parts, the even number of winding parts are all fixed on a rotating disc, a heat exchange chamber is arranged in the interior of the winding part, two heat exchange pipelines penetrating through the rotating disc are arranged on the heat exchange chamber, air can enter the interior of the heat exchange chamber from one of the heat exchange pipelines and be discharged from the other heat exchange pipeline when the rotating disc rotates, air can enter the interior of the heat exchange chamber from one of the heat exchange pipelines when the rotating disc rotates, the pressure in the interior of the heat exchange chamber is increased, the air in the interior of the heat exchange chamber is extruded from the other heat exchange pipeline, so that the heat exchange purpose is achieved, and in addition, the coil is wound on the winding part, so that the heat generated by the coil can be cooled, and the service life of the coil is improved.

The utility model discloses a Hall thruster ceramic channel heat dissipation structure, and relates to the field of Hall thruster heat dissipation. The problem that the temperature of the ceramic wall face of a discharge channel of an existing Hall thruster is too high is solved. The device comprises a ceramic discharge channel, an annular heat pipe, an inner magnetic pole, a bottom plate, an inner magnetic screen, an outer magnetic pole, an outer coil frame and an outer magnetic screen. The heat pipe is installed between the ceramic channel and the inner magnetic screen, one end of the heat pipe is directly contacted with the wall surface of the ceramic channel, and the other end is directly contacted with the bottom plate. According to the utility model, the temperature of the ceramic wall surface is conducted to the bottom plate by using the principle of phase change in the heat pipe, and then the bottom plate directly radiates and transfers the heat to space, thereby achieving the purpose of reducing the temperature of the ceramic wall surface.

A design method for a double-layer, double-plane self-shielded coil significantly reduces magnetic field crosstalk and shielding barrel coupling effects, improving magnetic field stability and space utilization. It is suitable for coil design and integration applications in high-precision magnetic field control systems. A target field model is established based on the target magnetic field distribution, and magnetic flux constraints ensure that the external magnetic field of the coil approaches zero, thus achieving self-shielding characteristics. Subsequently, a stream function discretization method is used to obtain the coil winding path, and a mapping relationship and current scaling factor between the inner and outer coil layers are established to ensure that the double-layer coil effectively cancels out the external magnetic field while generating the target magnetic field. To further optimize magnetic field uniformity and energy distribution, this invention introduces a tornado optimization algorithm for global optimization of the coil distribution, thereby obtaining a coil structure with high uniformity and high attenuation performance. Finally, finite element simulation is performed on the coil shape to analyze whether its uniformity and attenuation meet the design requirements.

To provide an oil-immersed transformer with a simple structure that can suppress deformation. [Solution] The oil-filled transformer 1 according to the embodiment comprises a plurality of coils 2 composed of inner coils 12a and outer coils 12b arranged concentrically, an iron core 3 having legs 13 on which the coils 2 are mounted, an upper fitting 4 provided on the upper end side of the iron core 3, a lower fitting 5 provided on the lower end side of the iron core 3, and an inner circumferential support member 6 provided on the inner circumferential side of the coil 2 with its upper end supported by the upper fitting 4 and its lower end supported by the lower fitting 5, and which supports the coil 2 from the inner circumferential side and suppresses deformation by distributing and transmitting the mechanical force generated in the coil 2 to the upper fitting 4 and the lower fitting 5, wherein the upper end of the inner circumferential support member 6 is fixed to the upper fitting 4 in a range below the upper horizontal line (L10), and the lower end is fixed to the lower fitting 5 in a range above the lower horizontal line (L11).

The utility model relates to the technical field of reaction kettles, in particular to an efficient curing agent reaction kettle. According to the technical scheme, the reaction kettle is characterized by comprising a shell, a reaction kettle body is included, a stirring system is arranged on the reaction kettle body, an outer coil pipe is arranged on the outer side of the reaction kettle body, a heat source inlet is formed in the bottom end of the outer coil pipe, a heat source outlet is formed in one side of the outer layer of the outer coil pipe, and supporting angle steel is arranged on one side of the inner wall of the reaction kettle body; connecting angle steel is arranged at the end of the supporting angle steel in the direction parallel to the reaction kettle body, one end of the connecting angle steel is arranged on the reaction kettle body, an inner coil pipe is arranged on the connecting angle steel, an inlet is connected to the upper end of the inner coil pipe, an outlet is formed in the lower end of the inner coil pipe, and a plurality of temperature control mechanisms are further arranged on the connecting angle steel. The utility model provides an efficient curing agent reaction kettle, in order to realize uniform temperature of reaction materials in the reaction kettle and improve the operation efficiency and quality, the efficient curing agent reaction kettle can ensure the heating efficiency and uniform temperature of the reaction materials according to the temperature requirement of a production process, and is beneficial to proceeding of chemical reaction; and in addition, the structure is simple and compact, and the operation is convenient.

According to the high-sensitivity array type abrasive particle detection device, an excitation module is composed of an inner excitation coil, an outer excitation coil and an excitation source, the inner excitation coil and the outer excitation coil are wound in the same direction, and synchronous current is applied to the inner excitation coil and the outer excitation coil, so that a zero-magnetic-flux detection area is constructed between the inner excitation coil and the outer excitation coil; the detection module is a detection array composed of a plurality of induction coils, each induction coil is located in a zero magnetic flux area, when no to-be-detected object passes through the detection area, the induction voltage of the induction coils is zero, and when the to-be-detected object passes through the detection area, the magnetization and eddy current effect of the metal abrasive particles breaks the magnetic field balance, which is represented as the voltage change of the induction coils; the detection channel is located in an inner hole of the induction coil and used for ensuring that the to-be-detected oil sample passes through the detection area. The detection device provided by the invention can realize high-precision rapid detection of the metal abrasive particles in the oil, and is of great significance to fault diagnosis of rotating and reciprocating machinery.

The utility model discloses a fruit wine storage tank with a temperature control function, which belongs to the technical field of fruit wine storage and comprises a storage tank, a heat preservation cavity is arranged on the outer wall of the storage tank, an inner coil pipe is arranged on the inner side of the storage tank, an outer coil pipe is arranged on the inner side of the heat preservation cavity, and the inner coil pipe and the outer coil pipe are connected with each other. One end of the outer coil pipe is connected with a water outlet pipe, the top of the storage tank is connected with a filling pipe, the bottom of the storage tank is connected with a wine discharging pipe, an icing box connected to the storage tank is arranged on the outer side of the wine discharging pipe, and a valve is installed on the wine discharging pipe. Through the arrangement of the inner coil pipe and the outer coil pipe, the temperature of the inner side and the temperature of the outer side of the storage tank can be controlled at the same time, so that the fruit wine storage effect is improved, through the arrangement of the icing box, ice is added into the inner side of the icing box, fruit wine discharged from the wine discharging pipe can be iced, the taste is improved, and people can drink the fruit wine conveniently in summer.

toroidal coil arrangement (10), comprising - a toroidal outer coil (12) with a plurality of electrically interconnected outer windings enclosing an outer coil interior, and - a toroidal inner coil (14) arranged concentrically to the outer coil (12) within the interior of the outer coil, with a plurality of electrically interconnected inner windings, wherein each of the coils (12, 14) has a pair of terminals (121; 141) for its separate electrical contacting, characterized by that the outer coil (12) has two open ring rails (122a,b) running at a constant distance from each other, defining an annular gap (124) between them, which are connected to each other by conductor arcs (123) distributed evenly over their circumference, forming the outer windings.

The transformer comprises a winding framework, an inner coil, an isolating membrane, an outer coil, an upper magnetic block, a lower magnetic block and a guide pin, the winding framework comprises a winding groove and a through hole penetrating through the winding groove, the inner coil, the isolating membrane and the outer coil are sequentially arranged on the winding groove in a sleeved mode, and the upper magnetic block and the lower magnetic block are the same in structure. The upper magnetic block comprises a middle magnetic core and an outer magnetic core, the middle magnetic core is arranged in the through hole, the outer magnetic core is arranged on the side face of the winding framework, and the middle magnetic core and the outer magnetic core form a containing cavity to wrap the inner coil and the outer coil. Only one winding groove is formed in the winding framework of the transformer, the inner coil and the outer coil of the transformer are wound on the winding groove at the same time, the structure is simple, and installation is convenient. And the inner coil and the outer coil are separated through the isolating membrane, so that the inner coil and the outer coil can be conveniently wound, and the safety of the transformer is also improved.

A coil body (32) is provided with substrates (34) which are formed using an insulating material in a shape extending in the radial direction and which are laminated in the axial direction. Furthermore, the coil body (32) has a magnetic field generation unit (80) which is formed on the substrate (34) using a conductive material, and which generates a rotating magnetic field when energized. Furthermore, the coil body (32) has a reinforcing part (70) formed in a region different from the region in which the magnetic field generating part (80) is formed on the surface of the substrate (34) facing the axial direction. The reinforcing part (70) reinforces the substrate (34).

A plasma etching device includes: a dual radio frequency (RF) generator configured to generate a second power signal having a second frequency and a first power signal having a first frequency, which is at least 12 MHz higher than the second frequency, a match circuit configured to perform impedance matching based on an impedance of the dual RF generator, a chamber including a wafer support, and an antenna inductively couplable to an interior of the chamber by an inner coil configured to receive the first power signal, and an outer coil configured to receive the second power signal.

This invention discloses a device and method for preparing horizontal two-dimensional oriented steel fiber UHPC wind turbine tower rings, relating to the field of wind turbine tower engineering technology. The device mainly consists of an annular mold, an annular slide rail, an electric slider, coils, and a DC power supply. The DC power supply powers the inner and outer coils, generating a uniform and controllable magnetic field. The coils are driven by the electric slider to achieve synchronous circumferential rotation. The magnetic field strength and application time are adjusted according to the different flowability of the UHPC mixture, causing the steel fibers to form a two-dimensional distribution in the horizontal plane under the action of the rotating magnetic field. The horizontal two-dimensional oriented steel fiber reinforced UHPC wind turbine towers produced by this device have a 15%-20% increase in compressive load-bearing capacity and a 40%-50% increase in compressive fatigue performance compared to traditional UHPC wind turbine towers. This tower structure can reduce the thickness of the tower ring sections by 10%-20%, reducing the tower's self-weight and raw material consumption, and reducing transportation and construction costs. The device has a simple design, is easy to assemble and disassemble, and has the potential for efficient and reliable industrial production, and can be widely used in the manufacturing and optimization of wind turbine towers.

A coil substrate according to an embodiment includes: an insulating layer; a first coil pattern portion disposed on one surface of the insulating layer; a second coil pattern portion disposed on another surface of the insulating layer; and a pad portion disposed on the one surface of the insulating layer and connected to the first coil pattern portion, wherein the first coil pattern portion includes: an inner coil pattern portion; and an outer coil pattern portion spaced apart from the inner coil pattern portion and disposed outside the inner coil pattern portion, wherein the pad portion is disposed between the inner coil pattern portion and the outer coil pattern portion.

This invention belongs to the field of cable winch technology and discloses a self-buffered braking cable winch, including a control base, a tension-adaptive adjustment winding and unwinding mechanism, a follow-up cable laying mechanism, a follow-up pressing mechanism, and a bidirectional check mechanism. The tension-adaptive adjustment winding and unwinding mechanism includes a winding and unwinding assembly, a diameter-changing assembly, and a tension control assembly. The bidirectional check mechanism is installed on the front and rear sides of the control base and connected to the winding and unwinding assembly. Through this method, the diameter-changing assembly expands outward according to the number of turns of the cable winding and unwinding, providing outward tension to the inner coil of cable on the diameter-changing assembly. This ensures that the inner and outer coils of cable are tightly attached, preventing insufficient cable tension during winding and unwinding, which could cause the inner coil of cable to slip. Furthermore, the transverse pressing assembly provides pressing force to both the inner and outer coils of the cable roll, further improving the quality of cable winding and unwinding.

A magnetically conductive core includes a monolithic multilayer film extending continuously along a length between opposing first and second longitudinal ends of the multilayer film and wound to form a plurality of substantially concentric coil loops. The plurality of substantially concentric coil loops have an average height H1 in the height direction of the core and a maximum lateral dimension D1 in the in-plane direction of the core, where D1 / H1 > = 2. The multilayer film includes a plurality of substantially co-extending layers including at least one magnetically conductive layer and at least one adhesive layer that bonds concentric coil loops to each other. For at least one pair of an inner coil and an outer coil of the plurality of substantially concentric coil loops, the inner coil and the outer coil have a relative permeability that differs by at least 10% at the same frequency in the range of about 10 kHz to about 10 MHz.

A transformer and a transformer machining process, including two coil units arranged side-by-side, each unit including an inner coil and an outer coil sleeved on the outside of the inner coil, an outer coil semi-conductive layer being wrapped on the outside of the outer coil and an inner coil semi-conductive layer being wrapped on the outside of the inner coil, and an insulating layer being integrally cast with the coil unit. In the transformer provided by the present application, the arrangement of the outer coil semi-conductive layer and the inner coil semi-conductive layer can effectively improve the problem of excessive local field strength caused by an irregular coil structure and solve the issue of wire package cracking caused by steel material generating heat in a pouring body; thus, the transformer has improved safety.

The utility model provides a quality enhancing device for communication inside and outside a human body, which comprises a metamaterial signal enhancing device, an in-vivo coil module and an in-vitro coil module, wherein the in-vivo coil module and the in-vitro coil module adopt the metamaterial signal enhancing device to enhance receiving and transmitting of wireless signals. The metamaterial signal enhancement device comprises a dielectric substrate, a metal resonant ring and a compensation capacitor, wherein the in-vivo coil module is implanted in a human body, and the metamaterial signal enhancement device used for enhancing communication signals of the in-vivo coil module is installed on the skin of the body surface of the human body ripped by the implanted in-vivo coil; wherein the in-vivo coil module and the in-vitro coil module are wirelessly connected through magnetic resonance matching by means of a metamaterial signal enhancement device. According to the utility model, the metamaterial is introduced, so that the communication mode effectively enhances the signal strength and improves the stability of signal transmission on the basis of ensuring extremely low path loss, and internal and external communication of a human body is realized.

Inductive charging device for a vehicle charging system comprising: a housing; a flat coil with radially consecutive coil turns wound around a winding axis, having a maximum radial span corresponding to a maximum distance between an innermost portion of an innermost coil turn and an outermost portion of an outermost coil turn; magnetic conductors arranged around the winding axis, comprising corner magnetic conductors (CMC) arranged in housing corner regions each CMC overlapping with the coil turns and protruding inwardly and outwardly; an inward protrusion of a CMC beyond the innermost portion of the innermost coil turn along a diagonal axis is less than / equal to 20 % of the maximum radial span, an outward protrusion of a CMC beyond the outermost portion of the outermost coil turn along a diagonal axis is less than / equal to 10 % of the maximum radial span.