A self-stabilizing centrifugal permanent magnet generator
A permanent magnet generator, centrifugal technology, applied to synchronous motors with static armatures and rotating magnets, magnetic circuits, electromechanical devices, etc., can solve the problems of high-speed voltage stabilization and weak field speed expansion that cannot be applied to permanent magnet motors , Inability to output stable voltage, unfavorable direct correspondence between air gap and rotor speed, etc., to achieve the effect of simple structure, low cost, and large adjustable amount
Inactive Publication Date: 2018-06-08
JILIN UNIV
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Problems solved by technology
The Chinese patent centrifugal rotor permanent magnet generator (application number: CN02135709.9) provides a high-efficiency permanent magnet generator solution, but the output voltage of the permanent magnet generator for vehicles changes linearly with the increase of engine speed, and cannot output Stable voltage, the centrifugal permanent magnet generator needs an additional voltage stabilizing mechanism
[0003] The Chinese patent variable air gap eddy current speed regulation induction motor (application number: CN200910025574.3) proposes an axially variable air gap eddy current speed regulation induction motor. The motor is equipped with an air gap adjustment component between the two rotors. Using the interaction between the static magnetic force and the dynamic magnetic induction repulsion between the stator and the rotor copper disc to adjust the air gap between the stator and the rotor copper disc to achieve the soft start of the motor, overload protection and the purpose of adjusting the speed and torque, because the stator in this technology The magnetic induction repulsion between the copper disk of the rotor depends on the speed difference between the stator and the rotor, which is not conducive to establishing a direct correspondence between the air gap and the rotor speed, and cannot be applied to the high-speed voltage stabilization and weak magnetic speed expansion of permanent magnet motors;
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[0016] attached by figure 1 , 2 Shown: a self-stabilized centrifugal permanent magnet generator, the generator includes a stator I and an outer rotor II; the stator I includes a stator core 1, and a stator that is uniformly arranged on the stator core 1 in a circumferential shape. Winding 2; the outer rotor II includes a permanent magnet 3, an outer rotor core 4, a rotor slider 5, a guide locking rod 6, a protective cover 7, a damping block 8, a return spring 9, a pressure plate 10, a gasket 11 and a lock tight nut 12;
[0017] Wherein, a plurality of the permanent magnets 3 and the rotor sliders 5 are alternately and uniformly arranged in the outer rotor core 4 in a circumferential shape, and the N poles of two adjacent permanent magnets 3 are opposite to the N poles or the S poles are opposite to the S poles; A cavity 13 is processed on the rotor slider 5, and the guide locking rod 6, reset damper 8, return spring 9, pressure plate 10, gasket 11 and lock nut 12 are arrange...
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The invention relates to a self-stabilizing centrifugal permanent magnet generator, which comprises a stator I and an outer rotor II, wherein the stator I comprises a stator core and stator windings, wherein the stator windings are evenly distributed on the stator core in a circumferential form; the outer rotor II comprises permanent magnets, an outer rotor core, rotor slide blocks, guide locking rods, a protective sleeve, damping blocks, reset springs, pressure plates, gaskets and locking nuts; a plurality of permanent magnets and rotor slide blocks are alternately and evenly distributed in the outer rotor core in the circumferential form; a cavity is processed in each rotor slide block; each guide locking rod, each damping block, each reset spring, each pressure plate, each gasket and each locking nut are arranged in the corresponding cavity; and the guide locking rods are fixedly connected with the outer rotor core. The internal magnetic resistance of the rotor is changed by centrifugal force generated in the generator rotating process, so that the self-stabilizing target of the permanent magnet generator is achieved by changing the size of an exciting magnetic field; the structure is simple; and the cost is low.
Description
technical field [0001] The invention relates to the field of generators, in particular to a self-stabilizing centrifugal permanent magnet generator. Background technique [0002] Permanent magnet generators have the characteristics of small size, high power density and high efficiency. Compared with electric excitation generators, they have obvious energy-saving effects. The Chinese patent centrifugal rotor permanent magnet generator (application number: CN02135709.9) provides a high-efficiency permanent magnet generator solution, but the output voltage of the permanent magnet generator for vehicles changes linearly with the increase of the engine speed, and cannot output To stabilize the voltage, the centrifugal permanent magnet generator needs an additional voltage stabilizing mechanism. [0003] The Chinese patent variable air gap eddy current speed regulation induction motor (application number: CN200910025574.3) proposes an axially variable air gap eddy current speed r...
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IPC IPC(8): H02K21/22H02K1/27
CPCH02K1/2786H02K21/22
Inventor马芳武尹红彬蒲永锋吴量赵花垒杨猛
OwnerJILIN UNIV