Inverted-T-shaped carbon brush for automobile ripple motor and preparation method and application of inverted-T-shaped carbon brush

The invention belongs to the technical field of carbon brushes, and particularly relates to an inverted-T-shaped carbon brush for an automobile ripple motor and a preparation method and application of the inverted-T-shaped carbon brush. The inverted-T-shaped carbon brush body of the inverted-T-shaped carbon brush provided by the invention can effectively reduce current fluctuation caused by jumping of the carbon brush, so that ripple acquisition data is more accurate; the R arc chamfer can effectively avoid collision between the carbon brush and the reversing groove and reduce jumping of the carbon brush; besides, the unique inverted-T-shaped structure increases the contact pressure of the contact surface of the carbon brush and reduces the ratio of the width of the carbon brush to the commutation groove, so that the waveform of current generated by the contact of the carbon brush and the commutator is more stable. Copper and nano-silver in the preparation raw materials of the carbon brush body form uniform c