839 results about "Stator coil" patented technology

The invention discloses a manufacturing method of a frameless torque motor stator core, the stator core comprises a stator yoke part, a stator tooth part and a stator coil, the stator yoke part is in a circular ring shape, the stator tooth part is in a sun tooth type structure, the stator tooth part comprises a circular ring part, a tooth boot part and a tooth body part, the stator tooth part is embedded in the stator yoke part, and the tooth body part is in a sun tooth type structure. The plurality of tooth body parts are uniformly distributed, high-temperature-resistant insulating films are prepared on the surfaces of the stator yoke part and the stator tooth parts, and the stator coils are arranged on the peripheral sides of the tooth body parts in a sleeving manner; the manufacturing method comprises the following steps: S100, manufacturing the stator yoke part and the stator tooth part, and carrying out coating treatment; s200, winding to form a stator coil; s300, assembling a stator iron core; s400, welding a wire pin; s500, pouring glue and drying; s600, boring and shaping: boring the inner side of the circular ring part and the solidified potting glue, and boring off the circular ring part, so that two adjacent tooth shoe parts are completely isolated, and the closed slot of the stator core is bored to form an open slot; and S700, carrying out performance detection.

An electrically powered aircraft is configured to check the health of its motors by determining a flux linkage associated with each of the motors. The flux linkage may be determined by measuring the back-EMF of stator coils of the motor. The flux linkage may be measured while the motor is not powered or may be estimated when the motor is in use. The flux linkage of a motor may be compared to a corresponding threshold value to assess whether the magnet(s) of the motor have degraded to a point at which they pose safety concerns. The flux linkage values may also be used to project when the motor needs to be maintained and / or replaced. The flux linkage value of a motor may be displayed, along with historical flux linkage values for that motor, to show a magnitude of demagnetization of the magnet(s) of the motor.

The invention relates to a starting and power generation integrated control method based on externally distributed bosses of a permanent magnet motor, and the method comprises the following steps: determining the initial position of a rotor of the permanent magnet motor relative to a stator through a pulse voltage injection method, and applying a drive signal to a stator coil, so that the motor reaches the rotating speed at which an ignition trigger can stably detect the signal; an ignition trigger is used for obtaining boss signals and conducting shaping processing, and the specific position of the rotor relative to the stator is determined; the stator coil is electrified by utilizing the relative position of the rotor and the stator, the motor is driven to rotate, and flux-weakening voltage regulation control is carried out; and when the power-assisted condition is met, a stator coil corresponding to the permanent magnet motor is electrified by utilizing the relative position of the rotor and the stator, so that switching control from power generation voltage regulation to power-assisted driving of the motor is realized, and power-assisted driving operation is executed. According to the control method, the boss on the rotor is used for starting and power generation voltage regulation control of the permanent magnet motor, and the method is simple and easy to implement.

The invention relates to the technical field of medical instruments, in particular to an electromagnetic needleless injector which comprises a shell, a nozzle assembly, a liquid storage assembly, a driving assembly and an intelligent control system. Firstly, a series excitation linear motor is adopted to replace a traditional needleless injector driven by a spring, and the problems that driving force is limited and elasticity is attenuated due to the spring are effectively solved. According to the series excitation linear motor, through excitation magnetic field coupling between the stator coil and the rotor coil in the motor, the rotor directly drives the plunger rod to do linear motion in the axial direction so as to complete injection, the structure is simpler, the direct drive type connection structure is adopted, the stability is higher, and force transmission is more accurate. In addition, an intelligent control system integrated in the needleless injector enables the needleless injector to be more intelligent, control precision is higher, operation is more convenient, the needleless injector can be wirelessly connected with a breeding cloud management system, rapid, accurate and painless injection of live pigs and other animals can be achieved, and breeding efficiency and injection safety are improved.

The invention discloses an automatic loading and unloading device and method for a stator coil linear hot pressing process, belongs to the field of stator coil manufacturing, and aims to improve loading and unloading efficiency and guarantee personal production safety. The device comprises a ground rail parallel to a linear hot press, a first joint robot and a second joint robot are arranged on the ground rail in a sliding mode, and loading and unloading devices are arranged at the tail ends of the first joint robot and the second joint robot. The first joint robot and the second joint robot convey a mold pressing plate on the lifting frame and a stator coil on the second power roller way into a mold cavity of the linear hot press through the loading and unloading device. Or the first joint robot and the second joint robot send the mold pressing plate in the mold cavity of the linear hot press to the placing lifting frame through the loading and unloading device, and the stator coil subjected to hot pressing is conveyed to the first power roller way. The loading and unloading efficiency is improved, manual loading and unloading operation is replaced, and the problems of high manual operation intensity, low loading and unloading efficiency and the like are solved.

A rotating machine has a rotor and a stator that faces the radial outer side of the rotor via a gap. The stator has a stator coil and a stator core having a slot accommodating the coil. The stator has a thin film member covering at least a portion of an inner circumferential surface of the core, and having a window unit exposing the core to the radial inner side. A cylindrical unit covers the inner peripheral surface of the core on both axial sides of the window. The thin film member has a radiating unit that expands to the radial outer side from the cylindrical unit across a side wall of the slot. The thin film member has a first flow path that reaches from the window unit to the radial outer side of the cylindrical unit, and extends to both axial ends along the radiating unit.

Provided is an array device for a hairpin type stator coil. The array device, configured to array hairpin type stator coils on at least one array jig transported through a conveyor, may include i) a frame, ii) at least one magazine that is arranged in a magazine stack part installed in the frame and has the stator coils loaded along a set loading direction, iii) a magazine loading unit that is installed in the frame to load the at least one magazine into a magazine tilting part arranged in front of the magazine stack part, iv) at least one buffer unit that is arranged in front of the magazine tilting part, v) at least one cartridge unit that is arranged in front of the at least one buffer unit, and vi) a coil insertion unit that is arranged in front of the at least one cartridge unit to insert the stator coils.

The invention belongs to the technical field of generator stator coil materials, and particularly relates to a method and a system for evaluating aging resistance of a generator stator coil in a high-altitude environment. The method is based on research on service characteristics and evolution laws of a generator stator coil in a high-altitude environment; the aging resistance of the generator stator coil is evaluated through the following indexes for the first time: testing the breakdown voltage of the stator coil, the concentration of volatile organic compounds detected under the thermo-oxidative aging condition, the heat conductivity coefficient, the specific surface area of solid substances, the porosity and the liquid adsorption performance. The evaluation method provided by the invention has the advantages of accuracy and rapidness, and has a good application prospect.

An electric motor (1) is provided with a stator (2) in which stator coils (2B) are arranged circumferentially. A center point of the circumference is defined as a first center point (O1), and a position offset from the first center point (O1) is defined as a second center point (O2). The electric motor (1) comprises: a ring rotor (3) arranged within the stator (2) and having an annular shape around the second center point (O2); an eccentric shaft (4) mounted so that it is rotatable about the first center point (O1) and supports the ring rotor (3) so that the ring rotor (3) is rotatable about the second center point (O2); an output section (5) that outputs a rotation of the ring rotor (3); and a detector (7) that detects a position of the ring rotor (3) or the eccentric shaft (4). and a controller (8) that controls a time for the excitation of each of the stator coils (2B) based on a detection signal from the detector (7).

Systems and methods for magnetic field shaping in brushless direct current (BLDC) motors are disclosed. In some examples, the method includes forming a stator coil of a BLDC motor. The BLDC motor includes a rotor including a vessel mover disposed proximate the stator coil and including a magnetic structure. The stator coil includes windings comprising layers interconnected by intra-coil vias to form a continuous conductive path. The formation of the stator coil includes introducing variation(s) between two or more of the windings of two or more of the layers according to a desired magnetic field pattern. The stator coil is then driven by injecting a control signal to the conductive path to energize the stator coil, impart a directed force on the vessel mover to move the vessel mover in a direction of travel in accordance with the desired magnetic field pattern, and thereby commutate the BLDC motor.

This invention relates to the field of head-twisting machine technology, specifically disclosing a motor stator head-twisting machine, comprising a base plate; a rectangular shell is provided on the top surface of the base plate; a square shell is mounted on the top surface of the rectangular shell; a column is fixedly connected to the bottom surface of the rectangular shell, and a first head-twisting disc is coaxially rotatably connected to the outer periphery of the column; a second head-twisting disc is coaxially rotatably connected to the outer periphery of the first head-twisting disc; a third head-twisting disc is coaxially rotatably connected to the outer periphery of the second head-twisting disc; a fourth head-twisting disc is coaxially rotatably connected to the outer periphery of the third head-twisting disc; a first drive mechanism and a second drive mechanism are provided inside the rectangular shell; a frame is mounted on the top surface of the base plate; a tooling mechanism for clamping the motor stator is provided on the frame; through the coordinated operation of the first head-twisting disc, the second head-twisting disc, the third head-twisting disc and the fourth head-twisting disc, the coil inserted into the wire slot is head-twisted, so as to realize the automatic head-twisting processing of the motor stator coil, reduce the trouble of manual head-twisting, ensure the head-twisting quality, and improve the processing efficiency.

The invention discloses a stator coil type coil for a high-voltage shielding motor, a manufacturing method, a stator and a motor, the coil type coil comprises a continuous coil body made of a conductive material, the coil body comprises two parallel long straight line segments, bevel edge segments connected with the two ends of the straight line segments, and nose parts located at the joints of the bevel edge segments; the turn-to-turn insulating layer and the ground insulating layer are coated outside the conductive material; the coil body forms an integrated full-mould-pressing structure through mould pressing forming, the mould pressing forming range covers all the straight line sections and the bevel edge sections connecting the straight line sections and the nose part, and the nose part is not covered by a mould. The problems of difficulty in coil inserting of high-voltage and small-size stators, poor insulation reliability, low motor efficiency and the like are solved.

A stator of an electromachine (2) comprising a stator laminate (3) containing sheet metal (8) and extending around a stator shaft (7), having stator teeth (4) and stator slots (5) between the stator teeth (4), wherein within the stator laminate (3) there is provided at least one set (13) of three first stator sub-laminateds (3.1) twisted in opposite directions to clamp the stator coil (6) at clamping points (10) of the stator slots (5), with two of the first stator sub-laminateds (3.1) of each set (13) in one circumferential direction about the stator shaft (7), and the remaining first stator of the set (13) A stator characterized in that a sub-laminated stack (3.1) is twisted in opposite directions, and within the stator slot (5) of the stator stack (3), a protective cylinder (11) is provided in the region of the twisted first stator sub-laminated stack (3.1), and this protective cylinder (11) protects the stator coil (6) from damage caused by the twisted first stator sub-laminated stack (3.1), and is particularly electrically insulating, wherein at least one of the protective cylinders (11) has at least one flange (12), and this flange (12) is bent with respect to the slot section (11.1) of the protective cylinder (11) and is provided so as to be supported by axial bracing against one of the stator teeth (4) of one of the first stator sub-laminated stacks (3.1).

The invention discloses an electrically driven supercharger structure, and relates to the technical field of electrically driven superchargers, and the structure comprises a driving motor which comprises a motor housing, a stator coil and a rotor, the stator coil is fixed in the motor housing, and the rotor is located in the internal space of the stator coil; the gas compressor comprises a pressure shell and a pressure impeller; the bearing system comprises a main body structure, a rotating shaft, a bearing and a thrust sleeve, the motor shell is connected with the pressing shell through the main body structure, a rotating shaft mounting channel is formed in the main body structure, the rotating shaft is arranged in the rotating shaft mounting channel through the bearing, one end of the rotating shaft is connected with the rotor, and the other end of the rotating shaft is connected with the pressing impeller; the thrust sleeve is located between the bearing and the pressure impeller and arranged on the rotating shaft in a sleeving mode. The driving motor and the gas compressor are connected through the bearing system, so that the rotor and the compressor impeller are respectively connected through the two ends of the rotating shaft, the structural complexity of the electrically-driven supercharger is reduced under the condition that power is provided for the supercharger in an electrically-driven mode, and the structural space is greatly compressed.

A system (12) for a vehicle, an assembly (10), and a method for detecting a connection state of a switching device (62) of a charging circuit (56) are provided. The system (12) comprises at least one stator coil (30) of an electric machine (18), an inverter (16), and a charging circuit (56). The inverter (16) is configured to be coupled to a battery (14) of the vehicle. The charging circuit (56) is configured to be coupled to a charging device external to the vehicle. The charging circuit (56) is further configured for adapting a charging program of the battery (14) of the vehicle. The charging circuit (56) comprises at least a capacitor (64) and the switching device (62). The switching device (62) is arranged between the capacitor (64) and the stator coil (30). A single voltage sensing element (66) is arranged between the switching device (62) of the charging circuit (56) and a star point (60) of the electric machine (18). A control circuit (36) is configured to detect the connection state of the switching device (62) of the charging circuit (56) based on a voltage magnitude measured by the voltage sensing element (66).

The utility model discloses a portable electric fan. A fan wheel and a wheel-shaped mounting seat are arranged in a first cylindrical shell, a front cover is arranged at a front port, and a rear cover is arranged at a rear port. A rotor magnet is arranged in a first barrel-shaped hub part of a fan wheel, and a motor rotating shaft is arranged in the center of a barrel bottom. The wheel-shaped mounting seat comprises a cylindrical contour part, a second cylindrical hub part and a plurality of first plate-shaped spokes. And a tubular mounting seat is arranged at the center of the barrel bottom of the second barrel-shaped hub part. A motor rotating shaft is assembled in the tubular mounting seat, and a stator coil is sleeved outside the tubular mounting seat. The front cover is embedded into the front end of the cylindrical contour part and comprises a front cover hub part and a plurality of second plate-shaped spokes. The first plate-shaped spokes and the second plate-shaped spokes form a plurality of flow guide plates in a one-to-one correspondence mode, and air outlet airflow can be concentrated.

The utility model belongs to the technical field of motor stator coil inserting, and particularly relates to an automatic coil inserting mechanism for a deep-well pump motor stator. The wire inserting device comprises a device body, a device box body is arranged outside the device body, a wire inserting operation area is arranged in the middle of the device box body, a processing table top is arranged below the wire inserting operation area, a rotating table is movably installed on the processing table top, a wire winding cup is fixedly installed on the rotating table, and the wire winding cup is fixedly installed on the rotating table. A winding cup is arranged above the coil inserting operation area, a metal coil is wound on the winding cup, a coil pushing mechanism is arranged in the winding cup, a stator mounting mechanism is arranged above the coil inserting operation area, a motor stator is placed on the stator mounting mechanism, and a stator iron core protection mechanism is arranged in the stator mounting mechanism. According to the utility model, the tooth part of the stator iron core can be prevented from fin warping during coil inserting, coil scratching and electric leakage are avoided, the overall quality of the deep-well pump motor is improved, the defective rate is reduced, and the production requirements of high-quality products are met.

The utility model discloses an inductance encoder for a rotating motor, which relates to the technical field of encoders and comprises a signal receiving and demodulating module, the signal receiving and demodulating module comprises a rotor plate, a stator coil plate and a dual-channel induction inductance sensor chip, the rotor plate is connected with a rotating shaft portion of the rotating motor, and the stator coil plate is connected with the inductance sensor chip. The stator coil plate comprises an exciting coil and a receiving coil, non-contact electromagnetic induction is formed among the rotor plate, the exciting coil and the receiving coil, and the inductance sensor chip is used for demodulating amplitude modulation signals on the receiving coil and converting the amplitude modulation signals into sine and cosine signals; the signal processing module is used for receiving the sine and cosine signals output by the inductive sensor chip and processing the sine and cosine signals to obtain signal information; the signal decoding and outputting module is used for receiving the signal information and converting the signal information into angle position information of a motor rotor plate; the inductance encoder has the characteristics of high anti-interference capability, strong environmental adaptability and low cost.

The utility model provides a safety structure after starter short circuit for an engine, which comprises a casing, a stator coil assembly fixed on the inner wall of the casing and a binding post inserted on the casing, and the stator coil assembly comprises a gap bridge connecting line corresponding to the binding post. A fuse mounting part is arranged at one end, which is arranged in the casing, of the binding post, a fuse connecting plate is fixed on the fuse mounting part, the gap bridge connecting wire is fixedly connected with the fuse connecting plate, and the binding post is electrically connected with the gap bridge connecting wire through the fuse connecting plate. The melting point of the safety connecting plate is lower than that of the gap bridge connecting line and the binding post; during overload protection, the fuse connecting plate is fused, and the binding post is disconnected by the gap bridge connecting line; according to the safety structure after the starter for the engine is short-circuited, the defect that an existing starter is not safe to use after being short-circuited is overcome.

The utility model discloses a reciprocating type magnetic suspension motor. The reciprocating type magnetic suspension motor comprises a fixing frame, a stator coil module, a first rotor and a second rotor, the first rotor is provided with a first swing part, the first swing part comprises a first lower step and a first upper step, and the first upper step is connected to the lateral upper portion of the first lower step. The second rotor is provided with a second swing part, the second swing part comprises a second lower step and a second upper step, and the second upper step is connected to the lateral upper portion of the second lower step; the first upper step and the second upper step are symmetrically arranged, the first upper step is located over the second lower step, and the second upper step is located over the first lower step. According to the embodiment of the utility model, the first upper step arranged at the upper part of the first swinging piece and the second upper step arranged at the upper part of the second swinging piece are symmetrically arranged in a staggered manner, so that the dynamic mass distribution in the motor is more balanced in the swinging process of the first swinging piece and the second swinging piece, and further the generated deflection inertia is eliminated.

The utility model discloses a shielding type underwater thruster stator, which belongs to the technical field of underwater thrusters and comprises a metal shell, metal flanges are respectively welded at two ends of the metal shell, connecting welding holes are formed in the middle parts of the two metal flanges, shielding sleeves are fixedly sleeved in the two connecting welding holes, and the shielding sleeves are connected with the metal flanges. And the middle part of the shielding sleeve penetrates through the inner cavity of the metal shell. According to the utility model, the metal shell, the metal flange and the shielding sleeve are connected through welding, and the stator winding and the stator coil are arranged in the space formed by welding and sealing the metal shell, the metal flange and the shielding sleeve, so that a pressure compensation device is omitted, a sealing ring is not needed for sealing, and pressure compensation liquid is not needed; the problem of pressure compensation liquid leakage does not exist, the underwater propeller is designed to be of a pressure bearing structure and can work underwater for a long time, and the operation safety of the underwater propeller is greatly improved.

This invention provides a novel structure for fastening the first terminal of a motor busbar to the second terminal of a terminal block. [Solution] The motor unit may include a motor having a stator coil, a motor busbar connected to the stator coil, a first terminal located at the tip of the motor busbar, a first guide member fixed to the first terminal and having a first guide surface, a second terminal to which the first terminal is fastened using bolts and which has a contact surface that contacts the first terminal, a terminal block holding the second terminal, and a second guide member fixed to the second terminal and having a second guide surface. The first and second guide surfaces are configured to contact each other when the first terminal approaches the second terminal from a direction parallel to the contact surface, and each may have a first profile that prevents contact between the first terminal and the second terminal at least at the timing when the first terminal and the second terminal begin to face each other.

A stator bobbin includes a first winding support with an inner radial portion, an outer radial portion, and a winding space defined radially between the inner radial portion and the outer radial portion with respect to an axis of rotation. The winding space is configured to receive a plurality of windings of the e-machine. The inner radial portion and the outer radial portion extend along the axis between a first end of the stator bobbin and a second end of the stator bobbin. The stator bobbin further includes a winding retainer disposed at the first end and configured for receiving and retaining an end of the plurality of windings. Also, the stator bobbin includes a contoured flow surface disposed proximate the second end. The contoured flow surface defines a nonlinear flow path for a fluid coolant of the e-machine.

The application provides a reversible conveying line based on magnetic suspension technology, a rotatable non-powered track is connected between a plurality of fixed power tracks, by controlling the rotation of the rotating track section, the two ends thereof are connected with two fixed track sections respectively, and a complete predetermined movement track is formed. The rotating track section does not need to integrate a complex stator coil array, the material cost and production process difficulty are reduced, and compared with a traditional linear motor transition scheme, the system reliability is significantly improved. A transformation structure is disclosed in the embodiment, including specific angle design and guide design, to ensure that the conveying carrier can smoothly pass through the rotating track section; in addition, the embodiment also provides a conveying carrier including a double main body part, the thrust and the pull are provided by different main body parts respectively, the power continuity of the conveying carrier when passing through the rotating track section is realized, and the conveying carrier is particularly suitable for material diversion, convergence or path switching in an industrial automation scene.

A rotary electric machine stator includes: a stator core; a stator coil mounted on the stator core and including coil ends at both ends in an axial direction; and an insulating material portion provided at the coil ends and formed by a foam varnish. The insulating material portion includes, on a surface thereof, an uneven portion caused by foaming.

A stator for a rotating electrical machine includes: a stator coil in which four or more sets of coil portions for each phase are connected as a parallel circuit between a neutral line terminal and a power line terminal for each phase; and a stator core that has a plurality of slots and around which the stator coil is wound. Stator coil includes slot insertion portions each inserted in corresponding slot, and a crossover portion exposed from an axial end face of stator core and extending in a circumferential direction so as to connect a pair of slot insertion portions. In each phase, a plurality of slot insertion portions in each set includes a first slot insertion portion directly connected to the power line terminal. First slot insertion portion for each phase is located on radially outermost side in corresponding slot on one side in axial direction of stator core.

The invention relates to the technical field of motors, in particular to an excitation type series excitation linear motor and a control method, the excitation type series excitation linear motor comprises a shell, a stator coil and a rotor coil, the stator coil and the rotor coil are arranged in the shell, one end of the shell is axially and slidably connected with a driving shaft, and a control module used for adjusting the magnitude and direction of thrust is arranged outside the shell. One end of the driving shaft penetrates into the shell and is connected with the rotor coil, and the other end penetrates out of the shell. The stator coil is sleeved outside the rotor coil, an air gap exists between the stator coil and the rotor coil, the stator coil and the rotor coil are connected in a series excitation mode, and the driving shaft is enabled to perform linear motion through excitation magnetic field coupling between the stator coil and the rotor coil. Compared with an existing linear motor, the linear motor does not depend on a permanent magnet to form a magnetic field any more, the manufacturing cost of the motor is effectively reduced, the problems of assembly and failure related to the permanent magnet are solved, and the linear motor has high thrust density and wider application range and can be particularly applied to the fields of needleless injection, electromagnetic riveting and the like with high thrust strength requirements.

This technology provides a way to simplify the configuration of the stator coil. [Solution] The stator comprises a stator coil comprising a stator core extending cylindrically along the axial direction, a plurality of slots arranged along the circumferential direction of the stator core, a plurality of coil segments arranged in the plurality of slots, and a plurality of busbars. The stator coil has a first coil end portion protruding from a first end face of the stator core. Each of the plurality of busbars connects the ends of two coil segments protruding from different slots at the first coil end portion. The plurality of busbars includes a plurality of first busbars arranged on a first plane perpendicular to the axial direction, and a plurality of second busbars arranged on a second plane spaced apart axially from the first plane. Furthermore, each of the plurality of first busbars intersects with a corresponding one of the plurality of second busbars when viewed along the axial direction.

To provide a winding machine for a stator coil that is highly productive and can achieve a high space factor, and a winding method for the stator coil.SOLUTION: A winding machine 100 for a stator coil includes: a mounting device 20 having a work chunk mechanism 21 and a work swinging mechanism 22; and a nozzle drive device 40 having a first drive mechanism 41 that positions a nozzle 40N, which dispenses a wire W that forms a coil 53 of a stator 50, in a radial direction X relative to a stator core 51, a second drive mechanism 42 that operates in conjunction with the first drive mechanism 41 to position the nozzle 40N in an axial direction Y relative to the stator core 51, and a third drive mechanism 43 that operates in conjunction with the second drive mechanism 42 to change the orientation of the nozzle 40N within a range of 180 degrees.SELECTED DRAWING: Figure 1

The present invention relates to an axial magnetic-flux motor comprising a wireless power transmission unit and, more specifically, to an axial magnetic-flux motor which has a motor housing and a motor shaft rotatably supported by the motor housing, and which comprises: a fixed substrate which is coupled to the motor housing, and on which a stator coil is provided; and a rotating substrate which is coupled to the motor shaft, and on which a metal piece is provided for generating an electromagnetic force for rotation of the motor shaft by means of electromagnetic interaction with the stator coil, wherein the metal piece is magnetized with power transmitted from a wireless transmission unit of the fixed substrate to a wireless reception unit of the rotating substrate so that a permanent magnet is not used.