Permanent magnet motor for new energy automobile

Abstract

A permanent magnet motor for a new energy automobile disclosed by the present invention comprises a casing body, and a front end cover and a rear end cover which are installed at the front and rear positions of the casing body, a stator rotating core is fixedly installed in the casing body, and a rotor rotating core is arranged on the casing body at the center position of the stator rotating core. A horizontally-distributed transmission rod is fixedly installed in the center of the rotor rotating core, a gear set box is fixedly installed in the center of the outer surface of the front end cover, a gear sleeve is fixedly installed in the center of the interior of the gear set box, and a gear slow closing structure is arranged in the gear set box. And the transmission rod is provided with a limiting slow closing structure at a position between the front end cover and the rotor core. In the using process, when the motor switches the operation state, the counter-acting force borne by the transmission rod can be transmitted to the gear set box and the stable annular plate through the gear slow closing structure and the limiting slow closing structure in the motor, and therefore damage to the transmission rod is reduced.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a permanent magnet motor for new energy vehicles. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as the power source (or the use of conventional vehicle fuels, the use of new vehicle power units), and the integration of advanced technologies in vehicle power control and driving. For vehicles with new technology and new structure, the driving mode is mainly electric energy, and the driving structure is mainly motor. In terms of the maximum output power of the motor, the driving motor inside the new energy vehicle is mainly a permanent magnet motor. [0003] The permanent magnet motor uses permanent magnets to provide excitation, which makes the motor structure simpler, reduces the processing and assembly costs, and saves the slip rings and brushes that are prone to problems, which improves the reliability of motor ope...

AI Technical Summary

Problems solved by technology

[0004] For the permanent magnet motor used in new energy vehicles, the permanent magnet motor needs to ensure that it has enough output power to drive the whole vehicle, then the output shaft of the permanent magnet motor must meet the requirements of high speed, and the permanent magnet motor is urgent During the process of stopping or switching the output power, the transmission rod on the permanent magnet motor keeps rotating theoretically under the action of inertial force. The vibration rod with a large amplitude will cause greater damage to the transmission rod. In the case of long-term operation, after the damage of the transmission rod on the motor reaches a critical value, there will be a risk of fracture. Therefore, in order to solve this problem, we propose a new energy Permanent magnet motor for automobile

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