Rotor assembly and self-starting permanent magnet synchronous reluctance motor
A reluctance motor, permanent magnet synchronous technology, applied in synchronous machine parts, electric components, magnetic circuit rotating parts and other directions, can solve the problem of increased motor iron loss, increased motor saturation, and high saturation of rotor core question
Inactive Publication Date: 2021-06-15
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] However, the rotor of the self-starting permanent magnet assisted synchronous reluctance motor is equipped with a magnetic barrier layer and a magnetic conduction channel at the same time. As a result, the saturation degree of the rotor core is high, and setting the magnetic barrier layer and the permanent magnet at the same time will further increase the saturation of the motor, resulting in an increase in the iron loss of the motor and a decrease in the efficiency of the motor
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[0036] see in conjunction Figure 1 to Figure 4 As shown, according to the embodiment of the present application, the rotor assembly includes a rotor core 1. On the cross section of the rotor core 1, the rotor core 1 is provided with a shaft hole 6, a slit slot 2, and a q-axis squirrel cage slot 3 And the permanent magnet 4, the q-axis squirrel cage groove 3 is arranged on the two ends of the slit groove 2, the permanent magnet 4 is installed on the two ends of at least part of the slit groove 2, and the two permanent magnets 4 in the same slit groove 2 are spaced apart set up.
[0037] Each pole of the rotor assembly of the self-starting permanent magnet synchronous reluctance motor has a magnetic barrier layer formed by multi-layer slit slots 2 and q-axis squirrel cage slots 3. When the permanent magnet 4 is arranged in the middle of the magnetic barrier layer, that is When it is on the d-axis, due to the influence of the shaft hole 6 at the center of the rotor magnetic pol...
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The invention provides a rotor assembly and a self-starting permanent magnet synchronous reluctance motor. The rotor assembly comprises a rotor core (1), a shaft hole (6), slit grooves (2), q-axis squirrel cage grooves (3) and permanent magnets (4) are arranged on the cross section of the rotor core (1), the q-axis squirrel cage grooves (3) are arranged at two ends of the slit grooves (2), the permanent magnets (4) are mounted at two ends of at least part of the slit grooves (2), and the two permanent magnets (4) in the same slit groove (2) are arranged at intervals. According to the rotor assembly, the utilization rate of the rotor space can be increased, the permanent magnet torque of the motor is increased while the reluctance torque of the motor is utilized, the iron loss of the motor is reduced, and the output and efficiency of the motor are improved.
Description
technical field [0001] The present application relates to the technical field of motors, in particular to a rotor assembly and a self-starting permanent magnet synchronous reluctance motor. Background technique [0002] Self-starting permanent magnet assisted synchronous reluctance motor combines the advantages of asynchronous motor on the basis of permanent magnet assisted synchronous reluctance motor. torque to achieve constant speed operation. Compared with the asynchronous motor, the motor can run at a constant speed with low rotor loss and high efficiency; compared with the asynchronous start permanent magnet synchronous motor, the permanent magnet consumption is small and the motor cost is low. [0003] However, the rotor of the self-starting permanent magnet assisted synchronous reluctance motor is equipped with a magnetic barrier layer and a magnetic conduction channel at the same time. This leads to a high degree of saturation of the rotor iron core, and setting t...
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IPC IPC(8): H02K1/27H02K21/02
CPCH02K1/27H02K1/272H02K21/02
Inventor 李霞史进飞张志东肖勇
Owner GREE ELECTRIC APPLIANCES INC