Highly efficient heat dissipation air cooling stator-rotor motor

Abstract

The invention discloses a highly efficient heat dissipation air cooling stator-rotor motor. The motor comprises a case and motor end covers arranged on two ends of the case. A stator and a rotor are arranged in the case. An air gap is left between the stator and the rotor. A spindle is arranged in the center of the rotor. Multiple case stator heat dissipation wind flow channels are arranged in a housing body of the case. A motor wind cover is arranged on one end of the case and used for injecting external cold wind. Multiple rotor heat dissipation wind flow channels are arranged in the rotor. Rotor wind covers are arranged on two ends of the rotor. Air passing flow channels are arranged between the rotor wind covers and the spindle. The air passing flow channels between the rotor wind covers and the spindle and rotor heat dissipation wind flow channels in the rotor form rotor heat dissipation wind channels. Multiple stator heat dissipation wind flow channels are arranged in the stator. Air holes are arranged in the motor end covers. Case stator heat dissipation wind channels are arranged between the air holes and case stator heat dissipation wind flow channels. According to the invention, the motor is capable of saving energy and reducing consumption and dissipating heat highly efficiently, simple in structure and long in service lifetime.

Description

technical field [0001] The invention relates to the field of motors, in particular to an air-cooled stator-rotor motor with high-efficiency heat dissipation. Background technique [0002] At present, the heat dissipation of motors is a technical topic of great concern at home and abroad. If the motor cannot effectively dissipate heat during operation, its service life will be greatly reduced, especially for asynchronous motors. The excitation loss of the motor rotor reduces the efficiency of the motor; for the permanent magnet synchronous motor, the high temperature rotor will cause the magnetic performance of the motor magnet to decline, and even directly lead to the demagnetization of the magnet, which is a fatal threat to the permanent magnet motor. [0003] At present, some motors at home and abroad adopt an open heat dissipation method (air is directly blown into the gap between the rotor and the stator). Although this heat dissipation method can more effectively dissip...

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Problems solved by technology

[0002] At present, the heat dissipation of motors is a technical topic of great concern at home and abroad. If the motor cannot effectively dissipate heat during operation, its service life will be greatly reduced, especially for asynchronous motors. The excitation loss of the motor rotor reduces the efficiency of the motor; for the permanent magnet synchronous motor, the high temperature rotor will cause the magnetic performance of the motor magnet to decline, and even directly lead to the demagnetization of the magnet, which is a fatal threat to the permanent magnet motor

[0003] At present, some motors at home and abroad adopt an open heat dissipation method (air is directly blown into the gap between the rotor and the stator). Although this heat dissipation method can more effectively dissipate heat from the stator and rotor of the motor, it has high requirements for the working environment. Working in a humid and dust-polluted environment can easily lead to short life of the motor armature and block the air gap to affect the normal operation of the motor

[0004] There are also some manufacturers at home and abroad that inject liquid into the stator and rotor of the motor at the same time. Although such a structure can effectively dissipate heat from the motor, the stator and rotor structure has unreliable sealing. When the motor is running at high speed, leakage is very likely to occur in the internal circulation loop of the stator and rotor. Leakage causes burning of the motor, poor safety

At the same time, it will increase the difficulty of the manufacturing process and increase the cost of the motor

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