Abstract: The present application discloses a wire connection protection device of a cooking appliance and an air fryer. The wire connection protection device includes a rigid insulating sleeve sleeved over the connection between the internal wire and power wire of the cooking appliance, with both ends of the rigid insulating sleeve being sleeved over the outside of the outer sheath of the internal wire and the power wire, and a fire sleeve sleeved outside the rigid insulating sleeve. The rigid insulating sleeve improves the structural stability of the connection between the internal wire and the power wire such that it does not loosen easily. The fire sleeve prevents the connection from heating up and catching fire. The rigid insulating sleeve and the fire sleeve collectively insulate the heat source from the inside to prevent the fire from spreading, so as to improve the safety at the wire connection.

Abstract: A charging structure configured to charge a food thermometer is provided. The charging structure includes a housing, a first electrode component, a second electrode component, and an energy storage element. The housing includes a storage groove for storing the food thermometer. The first electrode component and the second electrode component are disposed on opposite ends of the storage groove, and the first electrode component and the second electrode component are configured to abut against a third electrode and a fourth electrode that are disposed on opposite ends of the food thermometer, respectively. The energy storage element is disposed inside the housing and is electrically connected to the first electrode component and the second electrode component.