Energy conversion device and vehicle

Abstract

The invention provides an energy conversion device and a vehicle, and the energy conversion device comprises a reversible PWM rectifier, wherein a first end and a second end of each bridge arm of thereversible PWM rectifier are respectively connected together to form a first confluence end and a second confluence end; a motor coil which comprises a first winding unit and a second winding unit which are connected with the reversible PWM rectifier; a bidirectional leg which is connected in parallel with the reversible PWM rectifier; and a charging and discharging connecting end group which comprises a first charging and discharging connecting end connected with the midpoint of the bidirectional bridge arm, a second charging and discharging connecting end connected with the first winding unit and a third charging and discharging connecting end connected with the second winding unit, wherein an external alternating current port is connected with the charging and discharging connecting endgroup. When the device is applied to the vehicle, the alternating-current charging and discharging circuit and the driving circuit can reuse the reversible PWM rectifier and the motor coil, and the problems that an existing overall control circuit comprising a battery charging circuit and a motor driving circuit is complex in structure, low in integration level, large in size and high in cost aresolved.

Description

technical field [0001] The present application belongs to the field of electronic technology, and in particular relates to an energy conversion device and a vehicle. Background technique [0002] With the continuous popularization of electric vehicles, more and more electric vehicles will enter society and families, bringing great convenience to people's travel. Relevant subsidy policies for the construction of charging stations in various places are also planned or even introduced. Both the quantity and the distribution range have been greatly improved. However, due to the limitation of the mileage of pure electric vehicles, vehicle users are very concerned about the problem that the vehicle breaks down due to the exhaustion of the power source. Although many vehicle manufacturers remind the vehicle driver of the remaining battery power information and low battery warning information through the vehicle instrument or other methods, it is inevitable that the remaining power...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the driving range of pure electric vehicles, vehicle users are very concerned about the problem that the vehicle breaks down due to the exhaustion of the power source.

Although many vehicle manufacturers remind the vehicle driver of the remaining battery power information and low battery warning information through the vehicle instrument or other methods, it is inevitable that the remaining power of the vehicle cannot meet the needs of the vehicle to drive to the location of the charging facility or the driver unconsciously When the vehicle is depleted

[0003] In order to avoid this problem from affecting the experience of vehicle users on the use of pure electric vehicles, and even affect the use and promotion of pure electric vehicles, it is necessary to develop mobile charging equipment to charge the vehicle to meet the needs of the vehicle when the battery is exhausted or the battery is low. The need for supplementary electric energy to the vehicle when the energy storage device is no longer output

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