Power clutch device of electric automobile

Abstract

The invention discloses a power clutch device of an electric automobile, and belongs to the technical field of mechanical transmission. The power clutch device comprises a box body, a box cover, an input shaft sleeve, an output shaft and a clutch sleeve sleeving on the output shaft, the input shaft sleeve and the output shaft are coaxially butted and can rotate relatively, and the output shaft and the input shaft sleeve can be combined or separated by the axial movement of the clutch sleeve, and thus the power connection or disconnection between the motor shaft and the gearbox is realized; the clutch sleeve is connected with a thrust structure used for controlling axial movement of the clutch sleeve, and a spring reset structure is arranged on the other side of the clutch sleeve. The device also comprises two sets of limiting devices with indicating lamps. When the clutch sleeve moves to two limiting positions, the corresponding limiting devices are triggered to act respectively so that the corresponding indicating lamps are lightened. The clutch device is used for the electric automobile with a driving and charging integrated system, power connection between the motor shaft and the automobile gearbox can be cut off in the charging process, and electric energy waste and automobile vibration caused by the fact that the motor shaft rotates to drag automobile transmission parts in the charging process are avoided.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a power clutch device for an electric vehicle, in particular to a power clutch device for an electric vehicle with an integrated driving and charging system. Background technique [0002] With the improvement of the public's consumption ability and consumption concept, electric vehicles have increasingly become the main choice for urban residents' daily travel. Compared with traditional fuel vehicles, electric vehicles have the advantages of high efficiency, low emissions, and renewable, which are of great significance for saving fossil energy and improving the ecological environment. Today, as the technology of the automobile industry is becoming more and more mature, one of the important factors restricting the large-scale popularization of electric vehicles is the charging technology of power batteries. At present, there are mainly two charging methods for ele...

AI Technical Summary

Problems solved by technology

The specific structure of this driving and charging integrated system is to connect the power battery with the inverter of the driving system, the inverter is connected to the windings of each phase of the driving motor, and the external single-phase or three-phase alternating current passes through the windings of each phase of the driving motor and the inverter. The inverter converts high-voltage direct current to charge the power battery. The windings of each phase of the driving motor are connected in parallel in the charging main circuit. However, due to the heterogeneity of the motor structure, the current flowing through the windings of each phase is not completely Equal, thus causing electromagnetic torque pulsation, causing the motor rotor to rotate, and the motor shaft dragging the vehicle transmission parts, not only consumes electric energy, reduces charging efficiency, but also causes vehicle vibration, causing safety hazards

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