Cosmetology instrument

A cosmetology instrument, comprising a housing, a heat dissipation assembly, a semiconductor chilling and heating plate, and an electronic component, wherein

• the electronic component comprises a mounting frame,
• the housing comprises a first housing and a second housing, the electronic component and the heat dissipation assembly are disposed in the first housing, the mounting frame is disposed on the inner wall of the first housing, and the semiconductor chilling and heating plate is disposed in the second housing;
• the heat dissipation assembly comprises a connecting member, a connecting bracket is disposed at one end, close to the first housing, of the second housing, the connecting member is clamped and connected with the connecting bracket, the first housing is connected with the heat dissipation assembly through the mounting frame in a non-contact manner, and the second housing is connected with the heat dissipation assembly through the connecting bracket in a non-contact manner;
• a circumferential air outlet for air circulation in the heat dissipation assembly is correspondingly formed at a gap between the first housing and the second housing, the circumferential air outlet is bounded at one end by the end face of the connection bracket and at the other end by the end face of the mounting frame, and an air inlet is provided at an end portion of the first housing away from the second housing;
• and
• an air channel communicated with the circumferential air outlet and the air inlet is formed between the electronic component and an inner wall of the first housing.