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221results about How to "Simple and strong structure" patented technology

Flywheel energy storage device adopting bearingless switched reluctance motor

The invention discloses a flywheel energy storage device adopting a bearingless switched reluctance motor. A permanent magnetic unloading bearing, a bearingless switched reluctance motor, a flywheel rotor and a mixed magnetic bearing are sequentially sleeved between the upper end and the lower end of a flywheel rotating shaft, wherein the permanent magnetic unloading flywheel carries the axial weight of the flywheel rotating shaft; the mixed magnetic bearing on the lower end overcomes the residual weight and the dynamic load of the flywheel rotating shaft, so that the flywheel rotating shaft is guaranteed to be stably suspended in the axial direction, simultaneously two-degree-of-freedom suspension bearing in the radial direction is provided for the flywheel rotating shaft, and the other two-degree-of-freedom suspension and electric function / power generation function in the axial direction are completed by the bearingless switched reluctance motor; and by adopting the high-speed electromotion / power generation running advantage and the self-suspension function of the bearingless switched reluctance motor, the strong unloading characteristic and the controllable suspension characteristic of the permanent magnetic unloading bearing and the mixed magnetic bearing are reasonably combined, so that the five-degree-of-freedom suspension of a flywheel with low loss and high reliability is realized, the running speed of the flywheel is improved, and the system power consumption and the size are reduced.
Owner:JIANGSU UNIV

Block type wall system assembled by hoisting and construction method thereof

Disclosed are a block type wall system assembled by hoisting and a construction method thereof. Multiple prefabricated wall board blocks are assembled into a whole, each prefabricated wall board block is provided with a reinforcing mesh concrete layer and a heat insulation layer outside in sequentially, the reinforcing mesh concrete layer consists of a structural layer and an outer surface layer disposed on the outer surface of the structural layer, four edges of the outer surface layer are protruded from four edges of the structural layer, the lower surface of the structural layer is provided with inner reinforcing bar holes corresponding to vertical long reinforcing bars on the lower adjacent prefabricated wall board block, and the heat insulation layer comprises external nonorganic boards, internal nonorganic boards, vertical nonorganic rib plates and fireproof heat insulation rock wool. The wall system is light in weight, simple in structure, convenient in installation and capable of realizing industrialized production. The wall system utilizes the external wall and internal heat insulation structure, the specially-made heat insulation layer and the concrete structural layer are connected quite closely and tightly, and the heat insulation layer is located on the innermost side, so that the probability of wetting due to seepage is reduced greatly.
Owner:沈汉杰

Axial split-phase internal stator permanent magnet biased magnetic suspension switched reluctance flywheel motor

The invention provides an axial split-phase internal stator permanent magnet biased magnetic suspension switched reluctance flywheel motor comprising an external rotor, a flywheel and an internal stator. The external rotor is packaged at the internal side of the flywheel in a laminating way. An internal stator iron core and an external rotor iron core are divided into m segments along the axis according to the phase number. The internal side of each segment of external rotor is equidistantly provided with 12 rotor poles along the circumference. The internal stator iron core is provided with 8 narrow tooth main magnetic poles and 4 wide tooth suspension poles. Main pole control coils and suspension control coils are respectively wound on the narrow tooth main magnetic poles and the wide tooth suspension poles. The coils on each narrow tooth main magnetic pole are interconnected in series to form a main pole winding. Every two of the control coils on each segment of wide tooth suspension pole are connected in series so as to form two sets of suspension windings in an orthogonal direction. The size of the system can be reduced and the critical speed of rotation can be enhanced; the suspension supporting loss can be reduced and the operation efficiency can be enhanced; and the stator poles are separately provided with the suspension poles, the main magnetic poles and magnetic isolating rings so that the control algorithm can be simplified and the suspension performance and the decoupling effect can be enhanced.
Owner:NANJING INST OF TECH

Modularized flux switching permanent magnet (FSPM) motor

The invention discloses a modularized flux switching permanent magnet (FSPM) motor, which is used for solving the problem of such a motor in which a permanent magnet is placed in a rotor. The motor comprises a stator and a rotor and adopts an inner rotor mode or an external rotor mode. The stator and the rotor are respectively a convexo-convex pole and slot structure. A magnetic module and a centralized armature winding are arranged on the stator; the magnetic module comprises one male concentrating flux iron core and one female concentrating flux iron core of the stator as well as a permanent magnet embedded in the stator; and the rotor is not provided with a permanent magnet and a winding. The motor has the beneficial effects that the structure is simple, compact and stable, and the volume is small; the windings are high in slot fullness, the resistance and the copper consumption are decreased and the efficiency is higher; the linear charge density, the torque output capacity and the power density are improved; the magnetic flux gathering effect exists, and the no-load air gap magnetic density is higher; and the armature reaction flux is vertical to the permanent magnet flux in space, and the stronger demagnetization-resisting capacity is ensured.
Owner:DALIAN MINGYANG IND +1
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