Air fryer with external cold air circulation

Abstract

The invention relates to an air fryer with external cold air circulation. The air fryer comprises a shell, an upper mechanism, a lower mechanism, an airway plate, a temperature controller, a pot basket, a motor, a cold air wheel, a hot air wheel, a heating body, an air inlet and a plurality of air outlets, the cold air wheel is arranged in an interlayer between the shell and the upper mechanism in a manner of corresponding to the air inlet and is closer to the air inlet, the heating body comprises a heating element, a fixing piece, a supporting frame and a linking support, the heating element directly heats air in an exposed manner, the temperature controller is an adjustable flashing temperature controller and directly senses temperature of heated air inside, a container for containing food is a composite pot composed of the pot basket and a pot basket layer frame, and a cavity is formed at the bottom of the food. Cold air circulating quantity is increased, and heat loss of inside heating can be reduced; heating efficiency of a heating part is improved; a temperature control part is accurate in temperature sensing, so that temperature sensing delay is avoided; structure of the pot basket is simplified, so that separation of food and oil-water is facilitated, range and efficiency of heat convection are improved, and cooking efficiency is improved.

Description

technical field [0001] The invention relates to a food heating and processing appliance, in particular to an air fryer with external cooling air circulation. Background technique [0002] The structure of a traditional air fryer is as follows figure 1 As shown, there are the following four defects: [0003] First, the interlayer between the upper core and the air duct plate is connected to the interlayer between the lower core and the outer wall. Under the action of the wheel, it is sucked from the top of the air fryer and enters the interlayer between the upper core and the air channel plate, and then is exported from the interlayer between the lower core and the outer wall. The cold wind wheel is far away from the air inlet, the amount of circulating cold air that can be inhaled is limited, and the cold air directly contacts the air duct plate, which increases the loss of internal heating heat; [0004] Second, the heating element adopts a heat pipe, which not only has ...

AI Technical Summary

Problems solved by technology

The cold wind wheel is far away from the air inlet, the amount of circulating cold air that can be inhaled is limited, and the cold air directly contacts the air duct plate, which increases the loss of internal heating heat;

[0004] Second, the heating element adopts a heat pipe, which not only has high cost, but also has low heating efficiency due to the packaging method;

[0005] Third, the temperature control technology adopts a liquid expansion thermostat, which is not only costly, but the temperature sensor of the liquid expansion thermostat is closely attached to the outer wall of the air duct plate. The disadvantage is that the temperature sensing probe is installed on the outer wall of the air duct plate. Instead of directly sensing the temperature of the heated air inside the air duct plate, there is a process of heat conduction by the metal of the air duct plate, which leads to problems of inaccurate and delayed temperature sensing;

[0006] Fourth, the food container adopts a double-layer pot basket structure, that is, there is a small pot inside the big pot, which is not conducive to the simplification of the structure and increases the cost, and the hot air convection can only enter from the side of the pot basket. The food is heated, the range of thermal convection is limited, and the heating efficiency is low

Images