Liquid cooling charging gun system and charging control method based on liquid cooling charging gun system

Abstract

The invention belongs to the field of charging guns, and discloses a liquid cooling charging gun system and a charging control method based on the liquid cooling charging gun system, the liquid cooling charging gun system comprises a cable, a heat exchange main pipe, a gun head and a controller; one end of the cable is connected with a charging module, the other end of the cable is connected with the gun head, a heat exchange branch pipe is arranged in the cable and connected with the heat exchange main pipe, a radiator, a pressure pump and a pressure sensor are arranged on the heat exchange main pipe, the pressure pump and the pressure sensor are connected with one end of the controller, and the other end of the controller is connected with the charging module; the controller is used for receiving the heat exchange liquid pressure, and when the heat exchange liquid pressure is lower than a preset pressure alarm threshold value, a first pressure pump control signal is generated and sent to the pressure pump; and the current operation power of the pressure pump is received, and when the pressure of the heat exchange liquid is lower than a preset pressure alarm threshold value and the current operation power of the pressure pump is the same as the maximum operation power, a first charging module control signal is generated and sent to the charging module. Safe and stable operation of the liquid cooling charging gun is ensured while the charging efficiency is ensured.

Description

technical field [0001] The invention belongs to the field of charging guns, and relates to a liquid-cooled charging gun system and a charging control method based thereon. Background technique [0002] With the rapid development of new energy electric vehicles, more and more car owners choose to buy new energy electric vehicles, and their intelligence and cruising range have also been greatly developed. As a supporting charging facility for electric vehicles, the power of charging piles is also gradually increasing. The charging voltage of a single gun is gradually expanded to 1000V, and the current is expanded to 250A. Since the charging voltage is closely related to the withstand voltage of the vehicle battery pack, a greater breakthrough cannot be achieved in the short term. Therefore, various development routes such as charging bows, dual-gun charging, and super charging have been proposed in terms of charging current. Among them, super charging has gradually become the...

AI Technical Summary

Problems solved by technology

[0003] However, the existing liquid-cooled charging guns only add limited detection methods such as flow meters and pressure sensors, and the control methods are relatively simple and rough. The current value to withstand greatly reduces the charging efficiency, and the functionality is obviously lacking

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