34results about How to "Improve flux utilization" patented technology

The invention discloses a permanent magnet differential transmission mechanism, which comprises an inner shaft, an outer shaft, a permanent magnet rotor and a magnetically permeable rotor. The magnetically permeable rotor includes a first ferromagnetic block and a second ferromagnetic block arranged in pairs; The shaft is connected to the outer shaft through bearings, and the inner shaft is connected to the permanent magnet rotor. Two rows of convex grooves are arranged on the circumferential surface of the inner shaft, and the permanent magnet rotor is distributed between the two rows of convex grooves; the ratio of the number of permanent magnet rotors to magnetically conductive rotors 1:2, evenly spaced; one end of the first ferromagnetic block and the second ferromagnetic block are connected to the outer shaft through the sliding groove, and the other end is respectively in contact with the two rows of convex grooves of the inner shaft through the connecting plate. As the inner shaft rotates, after the connecting plate slides along the protruding groove, along the groove track of the sliding groove, switching is performed between facing away from each other and relatively close to closing. Through the change of the magnetic circuit, the positive output torque can still be maintained under the condition of differential speed, the volume is reduced, the structure is simplified, and the energy lost in sliding friction can be reduced at the same time, and the transmission efficiency can be improved.

The invention discloses a hybrid magnetic circuit low harmonic wave multi-stator flux-weakening speed extension permanent magnet synchronous motor, and a method thereof. The hybrid magnetic circuit low harmonic wave multi-stator flux-weakening speed extension permanent magnet synchronous motor includes a radial stator, an axial stator and a rotor, wherein the rotor is arranged in the radial stator, and is arranged coaxially with the radial stator; the axial stator is arranged at the end part of the rotor, and is arranged concentrically with the rotor; permanent magnets are arranged in the rotor, and are used for generating radial magnetic poles and axial magnetic poles; one part of the magnetic flux generated from each permanent magnet enters the corresponding radial stator through the corresponding radial magnetic pole and then forms a radial main magnetic flux with a radial armature winding crosslink; the other part of the magnetic flux generated from the permanent magnet enters the axial stator through the axial magnetic pole, and then forms an axial main magnetic flux with an axial armature winding crosslink; and the radial main magnetic flux is connected with the axial magnetic flux in parallel. The hybrid magnetic circuit low harmonic wave multi-stator flux-weakening speed extension permanent magnet synchronous motor, and the method thereof have the advantages of eliminating the magnetic leakage effect of the end part, improving the utilization rate of the motor material, reducing the weight of the motor, improving the power density, flexibly realizing magnetic enhancing operation and flux-weakening speed extension operation, and widening the economic operation range of the motor.

At least one end of that rotor is provide with an axial stator, and the axial stator is concentrically arranged with the rotor; The stator slot of the radial stator is provided with a radial winding,The axial stator is divided into a radial stator and an axial stator, and the axial stator is arranged at the end of the rotor, so that the magnetic leakage effect at the end of the motor can be reduced, the heat dissipation efficiency can be improved, and the power density of the motor is increased by sticking a permanent magnet on the end of the rotor, so that the multi-phase control is easy torealize.

The invention discloses a permanent magnet synchronous motor (PMSM) with two stators, a composite rotor structure and radial and axial mixed magnetic paths and a method thereof. The PMSM comprises a radial stator, an axial stator and a rotor, wherein the rotor is inserted in the radial stator and coaxially arranged with the radial stator, the axial stator is arranged on one end or two ends of the rotor, the axial stator and the rotor are concentric, a radial winding is arranged in the stator groove of the radial stator, an axial winding is arranged in the stator groove of the axial stator, a rotor groove is arranged in the rotor, a permanent magnet is placed in the rotor groove, the permanent magnet enables the rotor to generate a radial magnetic pole and an axial magnetic pole, the radial magnetic pole faces the radial stator of the motor, the axial magnetic pole faces the axial stator of the motor, and the motor generates radial and axial torques to form mixed magnetic paths. The radial magnetic flux and axial magnetic flux generated by the permanent magnet of the motor can be utilized, end portion magnetic leakage can be eliminated, the utilization rate of motor material is improved, and the weight of the motor is reduced.

The invention discloses a passive suspension double-drive low-load crown block. The passive suspension double-drive low-load crown block mainly consists of a stator part and a mover part; the stator part comprises a frame, a stator permanent magnet, an upper magnetic conducting plate, an upper magnetic isolation positioning block, an L-shaped magnetic conducting plate, a magnetic conducting positioning block, a magnetic conducing guide rail and a square winding coil; and the mover part comprises a movable frame, a mover permanent magnet and a baffle plate. The passive suspension double-drive low-load crown block adopts the square winding coil structure to increase effective length of the coil in a magnetic field, uses double permanent magnets to improve the gap flux density uniformity of the winding coil, and uses magnetic conducting materials to reduce the gap magnetic leakage; and in addition, a driving magnetic flux and a suspension magnetic flux are coupled to form a loop, so thatthe magnetic flux utilization rate is increased. The passive suspension double-drive low-load crown block has the advantages of good gas flux density uniformity, high magnetic field intensity, high positioning precision, high driving force, high transportation speed, compact structure, small size and the like, and can be applied to such high-cleanness working environments as semiconductor transportation.

A gantry submerged arc welding machine with functions of automatic flux adjustment and drying, relating to the field of gantry submerged arc welding equipment, including a host, a welding cabinet, a welding torch, guide rails, solder, welding wire, a welding wire channel, an automatic flux adjustment device and The flux automatic drying device automatically adjusts the amount of flux through the flux automatic adjustment device, and automatically filters and dries the recovered flux through the flux automatic drying device. The electromagnetic valve and relay are used to automatically control the flux flow, with high control precision, simple operation, safety and reliability, which improves the welding process and welding quality, reduces the amount of recycled flux, improves the utilization rate of flux, and reduces the labor intensity of personnel. , Improve work efficiency and welding process level. The stepped filter method is adopted to improve the filter effect, reduce the impurity rate of welding flux, and reduce the emission of welding gas and waste. The use of filtration and heating can remove the moisture in the flux, and at the same time separate the flux from impurities.

The invention discloses a hybrid magnetic circuit double-stator weak-magnetic speed multiplying solid rotor permanent magnet synchronous motor and method thereof. The hybrid magnetic circuit double-stator weak-magnetic speed multiplying solid rotor permanent magnet synchronous motor comprises a radial stator, an axial stator and a rotor. The rotor is arranged in the radial stator and is coaxial with the radial stator. The axial stator is arranged on the end part of the rotor and is coaxial with the rotor. The rotor is a solid rotor. Permanent magnets are arranged in the rotor and are used for generating radial magnetic poles and axial magnetic poles. One part of magnetic flux generated by the permanent magnets enters the radial stator through the radial magnetic poles and is crosslinked with a radial armature winding to form radial main magnetic flux, the other part of the magnetic flux generated by the permanent magnets enters the axial stator through the axial magnetic poles and is crosslinked with an axial armature winding to form axial main magnetic flux, and the radial main magnetic flux is in parallel connection with the axial main magnetic flux. According to the invention, an end part magnetic leakage effect is eliminated, the utilization rate of motor materials is improved, the weight of the motor is reduced, the power density is increased, magnetic increasing operation and weak-magnetic speed multiplying operation can be flexibly realized, and the economic operation range of the motor is widened.

The invention provides a Flux-weakening multi-stator six-phase permanent magnet synchronous drive motor, electric vehicle and method thereof. A rotor is sleeved in a stator and is arranged coaxially with the radial stator. At least one end of that rotor is provided with an axial stator, the axial stator is concentrically arranged with the rotor, a radial win is arranged in the stator slot of the radial stator, and an axial winding is arranged in the stator slot of the axial stator. The three-phase magnetic potential generated by the radial winding and the axial winding is staggered by 60 DEG or 30 DEG so as to realize different modes of operation of the motor in a symmetrical six-phase or an asymmetrical six-phase; By placing permanent magnets at the end of the rotor, the axial magnetic density is increased, the radial electric load and magnetic load of the motor are reduced, the heat dissipation of the motor is effectively improved, and the power density of the motor is improved.