A built-in cooling system for asynchronous motors

Abstract

The invention discloses a built-in cooling system for an asynchronous motor, which comprises a motor casing, an end cover is fixedly connected to the right side of the motor casing, a rotating shaft is arranged in the middle of the motor casing, a tail bearing seat is fixedly connected to the left side of the motor casing, and the tail bearing There are through holes arranged in a ring on the seat, the rotating shaft runs through the middle of the tail bearing seat, the tail end of the rotating shaft is fixedly connected with a connecting plate, the rotating shaft is located between the connecting plate and the tail bearing seat and is fixedly connected with fan blades, and the side end of the connecting plate is arranged in a ring with connecting grooves , the connection groove is a ladder-shaped structure, the connection plate is slidably connected in the connection groove, four guide rods are arranged in a ring at the side end of the end cover, the driving disc is slidably connected to the guide rod, and the first ventilation holes are arranged in a ring on the end cover. A filter screen is arranged in the first ventilation hole, and the present invention adjusts the overlapped area between the first ventilation hole and the second ventilation hole through different rotation speeds of the rotating shafts, thereby greatly increasing the waterproof and dustproof capabilities of the motor.

Description

technical field [0001] The invention relates to the field of asynchronous motors, in particular to a built-in cooling system for asynchronous motors. Background technique [0002] Asynchronous motor, also known as induction motor, is an AC motor that converts electromechanical energy into mechanical energy by the interaction of the air gap rotating magnetic field and the rotor winding induced current to generate electromagnetic torque. After working for a long time, the rotor and the stator generate a large amount of heat. Most of the existing technologies use air cooling to dissipate heat. The fan drives the airflow to flow inside the motor to dissipate the heat from the motor. However, in order to connect the inside and the outside of the clicker, ventilation holes are provided, and the motor is still connected to the outside world when it is not working, which makes the motor less waterproof and dustproof. SUMMARY OF THE INVENTION [0003] The purpose of the present in...

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Problems solved by technology

However, in order to make the inside of the click communicate with the outside, ventilation holes are provided, and the motor is still connected to the outside when it is not working, which makes the motor less waterproof and dustproof.

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