Integrated series motor driving device

Abstract

The invention provides an integrated series motor driving device, and relates to the field of motors. A rotating shaft on the right side of a double-shaft-extension-end motor (1) is connected with a rotating shaft of a motor (4) via a coupling (2); lead wires U, V and W of a winding stator of the double-shaft-extension-end motor (1) are correspondingly combined to lead wires U, V and W of a winding stator of the motor (4); and the combination of the lead wires U, V and W of the winding stator of the double-shaft-extension-end motor (1) and the lead wires U, V and W of the winding stator of the motor (4) is correspondingly connected to wiring terminals U, V and W of a junction box, is correspondingly connected to output terminals U, V and W of a frequency converter through cables, and is driven to run through the frequency converter. The integrated series motor driving device is simple in structure; the rotation speed of the motor is increased; the rotational inertia is reduced; noises and vibration are reduced; the size and the weight of the integrated series motor driving device are also reduced; the energy is saved; the efficiency is improved; the overall cost is reduced; and the running cost is also reduced.

Description

technical field [0001] The patent of the present invention relates to the field of motors, especially an integrated serial motor drive device. Background technique [0002] 1) The existing high-power motors have large outer diameters of rotors, high linear speeds, low critical speeds, and low resonance frequencies due to large power and torque. The deflection and vibration of the rotor are large during operation, and the motor cannot operate at high speed. Secondly, the moment of inertia of the standard motor is large, and the starting and stopping time of the motor is too long, which cannot meet the requirements of modern and rapidly developing industries. [0003] 2) To achieve high-speed operation of existing high-power motors, motor acceleration and speed-up gearboxes, oil lubrication systems, couplings, mounting plates, etc. are generally used; to shorten the start-up time of the motor, the capacity of the frequency converter is generally increased; To shorten the mot...

AI Technical Summary

Problems solved by technology

[0002] 1) Existing high-power motors, due to large power and torque, large outer diameter of the motor rotor, high linear speed, low critical speed, and low resonance frequency

The deflection and vibration of the rotor are large during operation, and the motor cannot run at high speed

Secondly, the moment of inertia of the standard motor is large, and the starting and stopping time of the motor is too long, which cannot meet the requirements of modern and rapidly developing industries.

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