The invention provides a DC charging
machine with a charging gun
temperature monitoring module and a
temperature control method of the DC charging
machine. The charging
machine includes a main controller and a human-computer interactive display screen, a card swiping module, a power supply module, a charging gun
temperature monitoring module, a
power module, an insulation detection and
discharge module and a DC power meter all connected with the main controller. The charging gun
temperature monitoring module comprises a single-
chip microcomputer and a debugging downloading unit, an acquisition
control unit, a power conversion unit, a CAN1
bus and a CAN2
bus all connected with the single-
chip computer which is connected with the charging gun through the CAN1
bus and connected with the main controller through the CAN2 bus. The power conversion unit is connected with the power supply module, and the acquisition
control unit is connected with a K1
contactor, a K2
contactor and the charging gun separately. The charging gun temperature monitoring module can
upgrade a charging gun of an existing charging
pile, and through the technical scheme above, a
temperature control method can be realized, which can effectively monitor the
working temperature of the charging gun so as to ensure a safe and
intelligent environment for a user.