Heating device

A heating device, configured for heating an aerosol generating substrate product and volatilizing at least one component therein to form an aerosol, comprising a heating body, wherein the heating body comprises:

• a base body, which is provided with a chamber for receiving at least part of the aerosol generating substrate product;
• an infrared electrothermal coating, which is formed on an outer surface of the base body and is configured for receiving a power supply to generate heat and transferring the heat to the aerosol generating substrate product received in the chamber at least in an infrared radiation manner, so as to volatilize at least one component in the aerosol generating substrate product to form an aerosol which can be inhaled;
• an electrode coating, which is coated on part of the outer surface of the infrared electrothermal coating and configured for supplying an electric power of the power supply to the infrared electrothermal coating;
• and
• an infrared radiation coating, which at least partially covers the infrared electrothermal coating, the infrared radiation coating being capable of absorbing energy radiated by the infrared electrothermal coating and radiating infrared rays after a temperature rise.