Abstract: With the improvement of economic environment, people's quality of life is gradually improving, and the use of air conditioning is becoming more and more popular. People pay more and more attention to the safety of air conditioning, especially the fire prevention of internal machines, which has always been a difficult and painful point in the air conditioning industry. The fireproof performance of the air conditioner is one of the important factors in electrical safety. Effective fire prevention structure plays a vital role in fire prevention performance. Analyzes the current situation of the existing fire protection structure of the air conditioner inner unit and proposes a new fire protection structure.

Key words: Air-conditioning internal, Fire protection measures, Electrical safety