The utility model relates to the technical field of hair
trimmer, and discloses a heat dissipation structure and a hair
trimmer, the heat dissipation structure comprises a
machine body and a stationary knife, a heat dissipation
air channel communicated with the outside is arranged in the
machine body, a blowing device and a heat dissipation part are arranged in the heat dissipation
air channel, and the heat dissipation part is used for conducting heat on the stationary knife; during use, heat of the heat dissipation component is conducted to air in the heat dissipation air duct, and the air blowing device works to
discharge the air with heat in the heat dissipation air duct to the outside. The device is simple in structure and low in production cost; heat on the fixed cutter can be absorbed through the heat dissipation component, and the heat of the heat dissipation component is discharged to the outside through the air blowing device, so that the heat dissipation and cooling effects on the fixed cutter are achieved, the temperature of the fixed cutter is prevented from being too high, lubricating agents do not need to be frequently added to the fixed cutter, the fixed cutter is not prone to
thermal fatigue, sharpness of the fixed cutter is guaranteed, and the service life of the fixed cutter is prolonged; the fixed knife is prevented from
scalding human bodies and the use experience is improved.