Hot air circulation structure and oven

Abstract

The invention discloses a hot air circulation structure and an oven, and belongs to the field of baking equipment. An upper heating pipe and a lower heating pipe of the hot air circulation structure are arranged at the top and the bottom of an inner container respectively, a cover plate covers the back of the inner container, an air duct is formed between the cover plate and the back of the innercontainer, an upper air inlet and a lower air inlet are formed in the positions, corresponding to the upper heating pipe and the lower heating pipe, of the cover plate respectively, and a plurality ofstrip-shaped air outlets are distributed between the upper air inlet and the lower air inlet in parallel in the vertical direction. An upper air heater and a lower air heater are arranged on the upper portion and the lower portion of the air duct respectively corresponding to the upper air inlet and the lower air inlet so as to respectively pump hot air at the upper portion and the lower portionof the inner container into the air duct for hot air circulation. The strip-shaped air outlets have a good guiding effect on the hot air, and the guiding performance of the cover plate on the hot airflow direction is improved. The multiple air outlets are distributed in the cover plate in parallel in the vertical direction, the air outlet uniformity is improved, the temperature field uniformity in the inner container is improved, and the baking efficiency and the coloring uniformity of baked food are improved.

Description

technical field [0001] The invention relates to the technical field of baking equipment, in particular to a hot air circulation structure and an oven. Background technique [0002] When using a domestic oven, the key factor affecting the baking effect of food is the uniformity of the temperature inside the oven, especially when using a multi-layer baking pan, if the temperature distribution inside the oven is not uniform, it will cause the baked food to burn. The color is uneven, even raw and cooked. At present, there are some ovens with hot air function on the market, which use a hot fan and a hot air baffle to circulate the hot air in the cooking cavity, improve the uniformity of the temperature inside the oven, and make the cooking food more uniform. [0003] However, the uniformity of the temperature inside the oven depends on the guidance of the hot air baffle to the flow direction of the hot air. Since the fan is generally located in the center of the oven liner, and ...

AI Technical Summary

Problems solved by technology

[0003] However, the uniformity of the temperature inside the oven depends on the guidance of the hot air baffle to the flow direction of the hot air. Since the fan is generally located in the center of the oven liner, and the air outlet is also a circular hollow air outlet, the air volume on one side of the fan will be greater than that after the fan rotates. The air volume on the other side leads to uneven hot air flow, and there is a problem of uneven coloring when cooking food

Images