Charging connection cable for electric vehicle and working method thereof

Abstract

The invention discloses a charging connection cable for an electric vehicle and a working method thereof. The charging connection cable is used for being connected to a power supply socket installed in a power grid and is connected to a vehicle socket mounted on the electric vehicle to provide a charging power supply for the electric vehicle; and the vehicle charger comprises a power supply plug,a vehicle connector, a temperature switch and a charging abnormity detection and safety control box. The charging abnormity detection and safety control box is used for detecting connection and safetyabnormity of an electric loop when the charging connection cable supplies power to the electric automobile, receiving an abnormity notice of the vehicle, evaluating risks and further implementing protection measures such as abnormity prompt and abnormity intervention. According to the invention, primary protection and secondary protection are provided, the charging safety of the electric vehiclecan be improved, the secondary protection function can realize interaction with the vehicle and a user, and the charging safety is improved in a manual intervention mode.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging devices, in particular to a charging connection cable with primary and secondary protection based on a temperature switch. Background technique [0002] Electric vehicles must be thermally protected during charging, otherwise they will be dangerous due to overheating. The charging connection cable in the prior art is usually also equipped with temperature detection and temperature adjustment devices. The charging strategy can be changed through the monitoring of the charging cable by the temperature sensor, and safe charging can be realized on the premise of ensuring that the line is not overheated. [0003] However, the charging connection cable in the prior art has the following defects. First, the control method is relatively primitive, and the charging strategy of the charging connection cable can only be controlled by a temperature sensor, and the communication between the c...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a charging connection cable with primary and secondary protection based on a temperature switch, which solves the technical problem that the thermal protection function of the electric vehicle charging connection cable is not perfect in the prior art