New energy vehicle and onboard charging device thereof, electronic lock control circuit, and control method

An electronic lock control circuit of a new energy vehicle onboard charging device, comprising:

• a socket lock driving circuit;
• a seal cover lock driving circuit;
• a switch tube, of which an output end is respectively connected to a power supply input end of the socket lock driving circuit and a power supply input end of the seal cover lock driving circuit, and when the switch tube is in a switch-on state, the socket lock driving circuit and the seal cover lock driving circuit are powered on, and when the switch tube is in a switch-off state, the socket lock driving circuit and the seal cover lock driving circuit are powered off;
• and
• a control unit, of which a switch control end is connected to a control receiving end of the switch tube, and is configured to stop outputting a switch-on control signal to the switch tube when a new energy vehicle is determined to be in a non-charging state, such that the switch tube is in the switch-off state.