Cooking appliance having cooling system

A cooking appliance having a cooling system, the cooking appliance comprising:

• an oven having a cooking chamber;
• a cooktop to be positioned above the oven and including a front surface, a rear surface, a top surface, a bottom surface, and a first side surface and a second side surface;
• a first electrical component disposed in the front surface of the cooktop;
• a second electrical component disposed in an interior of the cooktop;
• a first suction port disposed in an upper portion of a front surface of the oven, the first suction port being positioned below the first electrical component;
• a second suction port disposed in an upper portion of a front surface of the cooktop, wherein the second suction port being positioned above the first electrical component;
• a first cooling duct formed between an upper portion of the oven and the bottom surface of the cooktop and including:
• a front portion configured to connect with the first suction port, and
• a communication port formed at a to surface of the first cooling duct;
• an exhaust port disposed in a rear of the cooktop and configured to connect with a rear portion of the first cooling duct;
• a second cooling duct formed above the first cooling duct, the second cooling duct formed by the cooktop itself, and including an outlet formed on the bottom surface of the cooktop:
• a space provided between the bottom surface of the cooktop and the top surface of the first cooling duct;
• an exhaust fan disposed at a rear portion of the oven;
• and
• a connection duct provided in the space between the bottom surface of the cooktop and the top surface of the first cooling duct so that a bottom end of the connection duct is connected to the communication port of the first cooling duct and a top end of the connection duct is connected to the outlet of the second cooling duct;
• wherein the exhaust fan is configured to draw air from the first suction port toward the first cooling duct, and draw air from the second suction port toward the second cooling duct so as to cool the first electrical component,
• wherein the air discharged from the outlet of the second cooling duct is introduced into the first cooling duct through the connection duct and the communication port, is mixed with the air introduced through the first suction port, passes through the first cooling duct, and flows into the exhaust fan.