A vehicle-mounted charging device and a new energy vehicle

Abstract

A vehicle-mounted charging device and a new energy vehicle are provided. The vehicle-mounted charging device comprises a power receiving connection module, a converter module, a charging control module and a voltage value detection module. When the voltage value detection module detects that the voltage value of the line network is the voltage value of the set centralized charging, the voltage andthe current when the centralized charging are regulated by a DC / DC converter, and the vehicle is slowly charged. When the detected voltage value is the set voltage value at the time of fast charging,the ground charger is switched on, and a large current is output to charge that vehicle. According to different charging requirements, two charging modes of centralized charging and fast charging arerealized, and the combination of low-power DC / DC converter and ground charger can accomplish the two charging modes, which reduces the volume of DC / DC converter, reduces the production cost, realizesthe miniaturization of vehicle-mounted charging device, saves the internal space of the vehicle, and reduces the running energy consumption and operating cost of the vehicle.

Description

technical field [0001] The invention belongs to the field of charging systems for new energy vehicles, and in particular relates to a vehicle charging device and a new energy vehicle. Background technique [0002] With the development of urbanization and the continuous improvement of residents' living standards, more and more families have private cars, urban road traffic problems and urban air pollution problems are also increasing, and with the depletion of oil resources, new energy Technology to replace existing petrochemical resources has become an urgent problem in today's world. [0003] Therefore, new energy vehicles have become the best choice. At present, new energy vehicles mostly use batteries or supercapacitors as energy storage devices, because electric vehicles need to be charged intensively during outages; or in the case of power shortage during operation. High-power fast charging, so the on-board charging device needs to meet the two charging requirements of...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an on-board charging device, which is used to solve the problem that the DC / DC converter in the on-board charging device in the prior art needs to use high-power components to generate DC in order to meet the requirements of centralized charging and fast charging of vehicles at the same time. The problem of large volume and high cost of the DC converter or the high cost of the centralized charging station using the traditional charging method; the present invention also provides a new energy vehicle, which is used to solve the problem of high power carried by the new energy vehicle in the prior art The DC / DC converter leads to the problem of high cost and high operating cost caused by large volume

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