50results about "Asynchronous induction motors" patented technology

Electric motor comprising a squirrel-cage rotor in the form of a cage, which electrically conductively carries a plurality of rotor end rings formed as cast parts made of a casting material, wherein at least one reinforcing element made of a different material is cast into each of the cast parts, and wherein the casting material substantially forms the outermost free surface of the rotor end ring.

This invention belongs to the field of three-phase asynchronous motor technology, specifically a three-phase asynchronous motor with high sealing effect. It includes a motor body, an external double-layer sealed shell for buffering the motor body, and motor bases supporting the motor body on both sides of the lower center of the double-layer sealed shell. Inside the motor body is a heat dissipation mechanism for cooling the motor body. When the motor is running, the motor body generates heat. At this time, the heat dissipation mechanism starts working, and coolant enters the annular water-cooling channel through the inlet, flowing through shallow grooves on the outer surface of the inner shell. Because the shallow grooves are coated with thermally conductive silicone grease, and the annular water-cooling channel uses thin-walled copper tubing, heat can be efficiently transferred from the inner shell to the coolant. After absorbing heat, the coolant's temperature rises and it is discharged from the outlet, forming a circulating cooling system, thereby achieving continuous heat dissipation from the motor body.

Electric motor with a squirrel-cage rotor in the form of a cage, which electrically carries several short-circuit end rings formed as castings made of a casting material, wherein at least one reinforcement element made of another material is cast into each of the castings, the casting material essentially forming the outermost free surface of the short-circuit end ring.

This invention discloses a dual-source excitation composite rotor six-phase bearingless motor and its decoupling control method. The motor includes a stator assembly, a rotor assembly, an inverter, and a control unit. The stator assembly has a double Y-shifted 30° six-phase winding, and the rotor assembly includes a composite excitation structure composed of built-in permanent magnets and squirrel-cage bars. The control unit performs spatial vector decoupling of the six-phase currents, forming an αβ fundamental subspace, a z1z2 harmonic subspace, and an o1o2 zero-sequence subspace. In the αβ subspace, d-q axis current control is performed, with the d-axis simultaneously adjusting the dual flux linkages and the q-axis controlling the dual torque output according to the distribution coefficient. In the z1z2 subspace, harmonic current control is performed to generate a harmonic magnetic field with a pole pair difference of 1 to produce radial levitation force. In the o1o2 subspace, the zero-sequence current is monitored, faults are identified, and feedback triggers control adjustments. This invention balances high efficiency and a wide speed range, achieving independent control of torque and levitation force, and fault tolerance, making it suitable for high-speed precision transmission applications.

The invention relates to a rotor (R) for an axial flux machine, which in an installation position is arranged axially on one or both sides next to a stator, wherein the rotor (R) has a disk-shaped squirrel cage (1). According to the invention, the squirrel cage (1) is an extruded part produced in an extrusion process.

The invention relates to an electric motor having a rotor shaft and a laminated core, wherein the laminated core is placed onto the rotor shaft, wherein the laminated core has grooves which are spaced evenly apart from one another in the circumferential direction and are intended for receiving short-circuit bars of a squirrel cage, wherein the laminated core has groups of slots that are regularly spaced apart from one another in the circumferential direction relative to the axis of rotation of the rotor shaft, wherein each group of slots has at least three slots, wherein each slot is arcuate or elliptical, wherein the slots of each group of slots are oriented concentrically to one another.

Sheet metal (100) for forming a laminated core (10) for a rotor (11) of an electric machine (200), wherein the sheet metal (100) is oriented with respect to a longitudinal axis (A L ) has a cylindrical lateral surface (12) and radially extending first cutouts (13) and radially extending second cutouts (14), each having closed lateral surfaces (151, 152), wherein each first cutout (13) and second cutout (14) are mirror-symmetric with respect to a radially extending common axis of symmetry (A S ) are formed, wherein the first cutouts (13) are designed to receive short-circuit bars (16), characterized in that the first cutouts (13) on the side facing the lateral surface (12) of the sheet (100) each have a bulge (17) with a convex surface section (18) and a first vertex (S1) which lies on the respective axis of symmetry (A S) is arranged, and the second cutouts (14) on the side facing away from the lateral surface (12) of the sheet (100) each have a recess (20) with a concave surface section (21) and a second vertex (S2) which lies on the respective axis of symmetry (A S ) is arranged.

This invention relates to the field of asynchronous motors for electric forklifts, and discloses an asynchronous motor for electric forklifts with noise reduction function. The motor includes an electric forklift and an electric forklift drive structure mounted on the bottom of the electric forklift. The electric forklift drive structure is used to propel the electric forklift. The electric forklift drive structure includes an asynchronous motor and a forklift drive connector fixed to the outside of the asynchronous motor. The asynchronous motor and the forklift drive connector are connected and fixed to the electric forklift through a drive structure fixing component and a drive structure connector. A drive component is fixedly connected to the output end of the asynchronous motor, and a drive component kit is fitted onto the outside of the drive component. The drive component kit is fixed to the end of the asynchronous motor and is used to adjust the radial angle of the drive component. Compared with the prior art, this application has advantages such as compensating for meshing misalignment during the asynchronous motor transmission process, and solves a series of problems such as noise caused by meshing misalignment.

A rotor (10) of an electric machine (80), in particular an asynchronous machine, comprising a laminated core (11) comprising a plurality of laminations (12), is proposed, wherein the laminated core (11) includes at least one slot (13), and wherein the slot (13) has a receiving area (14) for receiving a short-circuit bar (50). When a short-circuit bar (50) is received, the receiving area (14) is completely filled by the short-circuit bar (50), wherein the slot (13) includes a free area (30) in a radially outer direction to the receiving area (14), the free area (30) being filled with a substance.

The application provides a precisely adjustable motor bearing self-excitation load adjusting device and adjusting method, and belongs to the technical field of large horizontal motor bearings. The device solves the problems of poor compensation effect, material waste and increased energy consumption of the weight increasing method when the radial load of the rotor bearing of the existing large horizontal motor is insufficient. The device comprises a rotor side execution assembly, a stator side excitation assembly and a self-excitation power supply adjusting circuit. The rotor side execution assembly comprises a solid magnetic section rotor fixed on the non-driving side unused journal section of the shaft and a squirrel cage induction structure section. The stator three-phase symmetrical winding of the stator side excitation assembly is embedded in the slot body of the stator core. The excitation capacitor is electrically connected with the stator three-phase symmetrical winding to form an excitation circuit, so that the squirrel cage induction structure section and the stator three-phase symmetrical winding form a three-phase asynchronous generator. The application meets the compensation demand when the load is insufficient, and can actively reduce the load when light load operation is required, so that the bidirectional intelligent regulation and control of the bearing load can be realized.

Electric motor comprising a stator, the stator winding (3) of which is surrounded by a stator lamination stack (1), wherein a stator inner sleeve (4) is provided which limits the space for the stator winding (3) inwards, i.e. towards the rotor of the motor, wherein the stator winding (3) is provided to be potted between the stator lamination stack (1) and the stator inner sleeve (4) by means of potting compound (40), wherein the stator winding (3) is arranged radially inside the stator lamination stack (1) and radially outside the stator inner sleeve (4), wherein the stator lamination stack (1) has slots (41) on its inner side, characterized by the fact that the slots (41) are filled only with the potting compound (40), so that the stator winding (3) is held in a form-fitting manner on the stator lamination stack (1) in the circumferential direction by means of the potting compound (40).

To provide an electric drive assembly system, a vehicle including an electric drive assembly system, and a method for assembling an electric drive assembly system.SOLUTION: An electric drive assembly system includes: a housing 1 including a body 11 and a cover; and the following disposed in the housing. The following includes: an electric machine 2 including a rotor shaft; a gearbox assembly 3 including a gear input shaft 21 connected to the rotor shaft and disposed coaxially therewith, to receive torque from the electric machine; an electric machine control module 4 configured to control the electric machine, and superposed with the electric machine and / or the gearbox assembly in a direction transverse to the gear input shaft; and an electrical connection assembly configured to electrically connect the electric machine control module to a stator of the electric machine.SELECTED DRAWING: Figure 1

A rotary electric machine (40) is provided with a stator (50) having a stator winding (52); a rotor (60) having a rotor core (61) including a main pole part (62) provided at each of magnetic poles arranged in a circumferential direction, protruding in a radial direction, and a field winding (70) wound around the main pole part; and a rotary shaft (32) integrated with the rotor core, high frequency current flowing through the stator winding to induce a field current through the field winding. The rotary shaft is made of ferromagnetic material. The rotary electric machine is further provided with an axial winding (151) wound around the rotary shaft, being energized by the field current flowing through the field winding; and a magnetic flux detecting part (152) provided at an axial end of the rotary shaft, detecting a magnetic flux produced when energizing the axial winding.

A polyphase linear induction motor including a movable primary member (100), the primary member (100) including a magnetic material (110), a polyphase winding (120) arranged around the magnetic material, and a stationary longitudinally-extending secondary member (150) separated from the primary member (100) by a gap, the secondary member (150) including an electrically-conductive reaction plate (200) and a backing magnetic material (300), wherein the secondary member includes a middle section (205) and two outer sections (210.1, 210.2), the middle section (205) and the two outer sections (210.1, 210.2) arranged next to each other in parallel to an axis of longitudinal extension of the reaction plate (200).

The invention discloses a novel amorphous disc type switched reluctance motor, which is characterized in that according to the technical principle of the reluctance motor, a rotor and a stator of the motor are made into disc shapes by applying the high wear resistance and corrosion resistance of amorphous strips; then, according to the designed motor power, a coil is arranged on the stator, and no coil is arranged on the rotor; and then a power supply is connected, so that the stator of the motor generates a strong magnetic field for high-speed operation. The motor is arranged in an up-and-down structure, and the rotor and the stator have the same diameter. The mass is greatly reduced, so that the required energy consumption is greatly reduced; therefore, the energy-saving effect of the motor is achieved; and meanwhile, the diameter of the rotor is increased, so that the torque of the motor is increased, and the instant explosive force is greatly improved.

An electric drive assembly system, a vehicle and a method for assembling an electric drive assembly system. The electric drive assembly system includes a housing including a main body and a cover. Disposed in the housing is an electric machine including a rotor shaft and a gearbox assembly which includes a gear input shaft connected to the rotor shaft and disposed coaxially therewith, to receive torque from the electric machine. An electric machine control module is configured to control the electric machine, and superposed with the electric machine and / or the gearbox assembly in a direction transverse to the gear input shaft. An electrical connection assembly, configured to electrically connect the electric machine control module to a stator of the electric machine.

The application discloses a high-voltage high-efficiency high-power-density three-phase asynchronous motor, which comprises a base internally provided with a rotor and a stator, and a winding is arranged on the stator core; a guide plate is obliquely arranged above the end of the winding, and the guide plate cooperates with a flow-through hole arranged on the middle partition plate of the same side base to form a guide air duct; a guide channel communicated with the inner cavity of the base is arranged at the lower part of the cooler above the stator core; the air flow out of the radial air duct of the stator core enters the end of the winding through three branches, i.e., the gap between the middle partition plate of the base and the stator core, the flow-through hole and the guide channel, and the air flow circulates in the base through the inner fan. The motor can effectively improve the heat dissipation effect, reduce the temperature rise of the motor stator and the internal temperature of the motor, and improve the power density and the efficiency of the motor.

This invention provides an induction motor and a scroll compressor, relating to the design and manufacturing of scroll compressors. The induction motor includes a stator core and a rotor core. Multiple turns of circular enameled wire and insulating paper are placed in the first conductor slot of the stator core. The circular enameled wire is composed of insulating enamel, copper, and aluminum. Cast aluminum is placed in the second conductor slot of the rotor core. This invention increases motor efficiency and reduces cost by limiting the relationships between Kq, Ks, Kf, and Kd to 10.216 ≤ [Kf×(1-Kd)+Kq×Ks] / (Kf×Kd) ≤ 16.844. Furthermore, by imposing dimensional constraints on the first conductor slot, the second conductor slot, and the heat dissipation slot, motor efficiency is further increased and motor cost reduced.

The utility model relates to the technical field of servo motor accessories, and discloses a stator wheel structure for a servo motor, which comprises a motor stator, the front end and the rear end of the motor stator are fixedly connected with clamping sleeves, the left end of the motor stator is clamped with a fixed cover, and the left end of the fixed cover is provided with a plurality of heat dissipation holes. Clamping blocks are fixedly connected to the front side and the rear side of the right end of the fixed cover, the outer walls of the clamping blocks are clamped to the inner wall of a clamping sleeve, the clamping blocks and the clamping sleeve are connected through bolts, a plurality of stator slot wedges are formed in the inner wall of the motor stator, and magnet exciting coils are wound around the outer walls of the stator slot wedges. According to the utility model, the two clamping blocks at the right side of the fixing cover are inserted into the clamping sleeve and are matched with the fixing bolts, so that the fixing cover can be installed at the left end of the motor stator, and guiding and limiting effects are achieved for subsequent installation of the motor rotor, so that the installation is more accurate and convenient; meanwhile, the left end of the fixed cover is provided with a plurality of heat dissipation holes for air circulation, and the heat dissipation holes are prevented from affecting normal heat dissipation of the structure.

This invention relates to a variable-diameter magnetically driven flexible continuum device, comprising several continuum units and several flexible frames. The continuum units are connected in series at predetermined intervals via the flexible frames. Each continuum unit has a base plate, an outer magnetic pole region, and an inner magnetic pole region. Both the outer and inner magnetic pole regions have multiple magnetic pole components. The magnetic pole components are configured to be energized and de-energized at adjacent end faces of two adjacent continuum units by current control. The continuum device has a variable-diameter mode. In the variable-diameter mode, the outer magnetic pole region is not energized, while the inner magnetic pole region is energized and attracts, causing the connecting units to bulge in the same direction, thus changing the working diameter. Employing the principle of electromagnetic conversion, the continuum only requires electrical energy in the deformable state, offering high degrees of freedom, low wear rate, and modularity. It has significant application value in scenarios such as medical endoscopy and industrial pipeline inspection.

The present invention provides a rotary electric machine in which heat dissipation characteristics of the rotor are improved and temperature characteristics do not deteriorate even if a die-cast rotor is used. A rotary electric machine of the present invention comprises rotor formed of laminated electromagnetic steel sheets, and a stator placed on an outer circumference of the rotor. The rotor is a die-cast rotor to be formed so that a plurality of rotor bars is formed at a predetermined interval in a circumferential direction and a die-cast material is poured into a rotor slot extending in an axial direction. The rotor slot is an open slot in which the rotor bar is exposed from a slit formed on its outer circumference. A circumferential width of the slit is narrower than a circumferential width of the rotor bar, a side wall of the slit exposes a side surface (lamination surface) of the electromagnetic steel sheet, and the slit provides a slit groove in which a depth to an exposed part of the rotor bar is greater than a depth to a non-exposed part of the rotor bar.

This invention discloses an external rotor AC motor axial flow fan, belonging to the field of motor technology. It includes components such as a main shaft, bushing, reinforcing plate, rotor housing, rotor blades, cast aluminum rotor, mounting base, and end covers. A bushing is fitted onto the outer side of the main shaft, and a reinforcing plate and rotor housing are installed on the outer side of the bushing. Rotor blades of the same material are welded to the outer side of the rotor housing, and a cast aluminum rotor is pressed into the inner side. The cast aluminum rotor consists of a rotor core and rotor guide bars. The rotor guide bars are made of pure aluminum and directly cast onto the rotor core. Insulating frames and protective covers are installed at both the front and rear ends of the cast aluminum stator. This invention optimizes materials and structure; the pure aluminum rotor improves performance and reduces energy consumption; the same-material blades and protective sleeve enhance welding strength; the sealing structure improves waterproofing; the structure is reasonable, assembly is convenient, and service life is extended. It solves the defects of traditional fans and is applicable to multiple fields.

The application relates to an energy-saving mussel meat and shell separating device and relates to the technical field of food processing machinery. The device comprises a bottom plate, a support column, a first frame body, a second frame body, a supporting plate, an extrusion plate, a gas cylinder, a motor, a rocker arm and a connecting rod mechanism. The motor drives the rocker arm to rotate through a belt, and the connecting rod mechanism drives the supporting plate and the extrusion plate to move horizontally and reciprocally in a sliding groove, and the gas cylinder controls the second frame body to ascend and descend to adjust the distance between the extrusion plate and the supporting plate. The application can realize efficient and energy-saving separation of mussel meat and shells, can reduce energy consumption through integrated driving of a single power source, and can improve stroke matching of moving parts to improve separation efficiency.

This utility model discloses a waterproof three-phase asynchronous motor, relating to the technical field of three-phase asynchronous motors. The utility model includes a three-phase asynchronous motor with a junction box mounted on its top. It also includes a waterproof mechanism located on the front of the junction box, comprising a rectangular frame fixedly connected to the front of the junction box. This utility model achieves a double seal by inserting an annular rubber plug into a hole, then placing a locking cover on several wire harnesses, and finally placing a rubber sealing ring on the wire harnesses. A ring spring applies elastic force to the rubber sealing ring, improving the sealing effect. When the locking cover is locked to the rectangular frame, an extension ring pushes and compresses the rubber sealing ring, achieving another seal. The combination of the annular rubber plug and the rubber sealing ring provides a double seal, effectively preventing water from entering the junction box, ensuring stable operation of the three-phase asynchronous motor, and extending its service life.

This utility model relates to the field of new energy vehicles, specifically to a conjugate motor, a drive system, and a vehicle. The first aspect of this utility model provides a conjugate motor comprising an outer motor and an inner motor. The outer motor includes an outer rotor and an outer stator, and the inner motor includes an inner rotor and an inner stator. The outer rotor, outer stator, inner stator, and inner rotor are arranged sequentially from the outside to the inside, and the outer stator and inner stator share a yoke. The outer motor is a permanent magnet motor, and the inner motor is an induction motor. The conjugate motor, drive system, and vehicle provided by this utility model aim to solve or improve the problem that hybrid architectures occupy too much vehicle space, which is detrimental to meeting users' needs for interior space.