Boron nitride insulating part

The utility model discloses a boron nitride insulating part, which comprises a mounting plate and an insulating sleeve abutted against the upper surface of the mounting plate, connecting structures are commonly and symmetrically mounted between the insulating sleeve and the mounting plate, a plurality of first convex parts are mounted on the inner side of the insulating sleeve, and the end parts of the plurality of first convex parts are all provided with abutting structures. The outer surface of the insulating sleeve is fixedly connected with a plurality of second protruding parts. According to the utility model, when the two parts are separated and insulated through the first convex part, the second convex part, the inner side and the outer surface of the insulating sleeve, the surface of the insulating sleeve is prevented from being directly contacted with the two parts, so that graphite powder is not easy to accumulate in the use process, and the contact surface of the insulating sleeve is prevented from