▎ 摘　　要

NOVELTY - The utility model model claims a circuit board of household heating device, comprising a circuit board main body, the outer side of the circuit board main body is provided with a protective shell, the inner side corner of the protective shell is fixedly connected with a symmetrical limiting plate, the inner side of the symmetrical limiting plate is provided with a protective device, one end of the protective device is provided with a buffer structure; The utility model model relates to the technical field of circuit board device. The circuit board of the household heating device, the circuit board main body and the protective device are fixed by the locking bolt on the upper and lower two ends of the bottom plate; the skid-proof rubber is set to buffer and protect the corner of the circuit board main body, and the protection effect is good, the heat generated by the circuit board main body when working can be firstly absorbed by the graphene plate; then the heat is discharged to the outside through the radiating hole, so as to realize the effective radiating, the buffer structure is set to buffer the collision force of the buffer spring to the circuit board main body and the protective shell.