▎ 摘　　要

NOVELTY - The device has a low temperature infrared radiation graphite alkene electric heat membrane (J7), lithium ion battery group (2), emergency power box (3), temperature detect probe (J6) and self-heating device (5). The low temperature infrared radiation graphite alkene electric heat membrane lithium ion battery group, emergency power box, temperature detect probe and electric connection between self-heating device, be equipped with circuit control on self-heating device, and low temperature infrared radiation graphite alkene electric heat membrane. The circuit comprises a Battery, a first resistor, a second resistor, a first capacitor, a voltage reference source, a third resistor, a chip, a fourth resistor, a second capacitor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first analog output, a second analog output, an MOS transistor, a relay and a third capacitor. USE - Emergency power supply low-temperature self-heating device for lithium ion battery box. ADVANTAGE - The automatic heating device is provided with a circuit for controlling the low-temperature infrared radiation graphene electric heating film, so that the lithium ion battery pack can be protected from the temperature influence two small in the using process. The emergency power supply box can be made under the power-loss charging state or emergency discharging state, and the temperature of the box is not lower than minus 20 degrees centigrade. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of an emergency power supply low-temperature self-heating device for lithium ion battery box. Lithium ion battery group (2) Emergency power box (3) elf-heating device (5) Temperature detect probe (J6) Low temperature infrared radiation graphite alkene electric heat membrane (J7)