Air conditioner

An air conditioner, comprising:

• a housing having a fan cavity and a heat exchange cavity in communication with each other;
• an electric control box disposed at the housing and in communication with the heat exchange cavity and the fan cavity;
• an electric control disposed in the electric control box;
• and
• a fan assembly disposed in the fan cavity, the fan assembly being configured to supply air to the heat exchange cavity and dissipate heat of the electric control box, wherein the electric control box has a first heat dissipation hole in communication with the heat exchange cavity and a second heat dissipation hole in communication with the fan cavity;
• and
• after flowing into the heat exchange cavity, an airflow in the fan cavity at least partially flows into the electric control box through the first heat dissipation hole and flows back to the fan cavity through the second heat dissipation hole.