Water-cooling component for permanent magnet motor

Abstract

The invention relates to a water-cooling component for a permanent magnet motor, which comprises a motor shaft, a motor rotor, a motor stator, a motor front end cover, a motor rear end cover, a motorshell and a motor shell radiating fin, wherein the front section and the rear section of the motor shaft are respectively fixed on the motor front end cover and the motor rear end cover. The motor rotor surrounds the motor stator to form a certain gap, and the motor rotor is fixed on the motor shaft. The front end cover of the motor is connected with the motor shell into a whole, and the rear endcover of the motor is detachably linked with the motor shell. The radiating fins of the motor shell are fixed around the motor shell. The motor also comprises a water-cooling component, wherein the water-cooling component comprises a guide pipe extending into the front end cover of the motor and extending out of the rear end cover of the motor, a water inlet pipe connected with one end of the guide pipe and a water outlet pipe connected with the other end of the guide pipe. A water inlet valve is arranged at the water inlet pipe, and a water outlet valve is arranged at the water outlet pipe. According to the water-cooling component for the permanent magnet motor, the water-cooling guide pipe is adopted to dissipate heat, so that the heat dissipation effect is obvious, the temperature is reduced quickly, the operation of a user is convenient, and the whole device is simple and compact in structure.

Description

technical field [0001] The invention relates to the technical field of motor heat dissipation, in particular to a circulating water cooling component for a permanent magnet motor. Background technique [0002] A motor is a device that converts electrical energy into mechanical energy. It uses energized coils to generate a rotating magnetic field and acts on the rotor to form a magnetoelectric force rotating torque. Motors are divided into DC motors and AC motors according to the different power sources used. Most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors. The motor is mainly composed of a stator and a rotor. The direction of the current-carrying wire in the magnetic field is related to the direction of the current and the direction of the magnetic induction line. The working principle of the motor is that the magnetic field acts on the force of the current to make the motor rotate. [0003] Existing motors (for...

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Problems solved by technology

[0003] Existing motors (for permanent magnet motors) have the following general problems: On the one hand, existing permanent magnet motors generally only dissipate heat through the heat sink installed in the shell, because the heat generated by the permanent magnet motor mainly comes from the internal stator of the motor, The heat sink is installed on the motor casing, which makes the heat transfer very complicated, resulting in long transfer time, inability to dissipate heat in time, and poor heat dissipation; on the other hand, although there are some permanent magnet motors with wind wheels at the rear The device mainly replaces and circulates the hot air inside the motor with the outside air through ventilation and heat dissipation, so as to achieve the effect of heat dissipation, but this heat dissipation method is an indirect heat dissipation, which transfers the heat generated by the rotor to the motor. In the internal air, and then alternately replace the air inside the motor to cool down, but at this time there is still a large part of the heat still exists on the rotor, the heat on the rotor cannot be exported in time, that is, the way of ventilation and heat dissipation is adopted, the heat transfer time is long, and the heat dissipation The effect is not good, the heat inside the rotor cannot be effectively transferred and exported, resulting in low working efficiency of the motor

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