Multi-level safety protection heat preservation box

Abstract

The invention relates to a multi-level safety protection heat preservation box. An electric heating unit is arranged in a heat preservation box body. A shelf for storing food is arranged above the electric heating unit. An oil receiving disc is arranged between the shelf and the electric heating unit. The electric heating unit is provided with an induced draft fan. An air outlet of the induced draft fan faces a cavity between the shelf and the oil receiving disc. A temperature sensor is arranged in the heat preservation box body and is used for collecting a temperature signal in the heat preservation box body and transmitting the temperature signal to a temperature controller. The temperature controller is used for controlling starting and stopping of the electric heating unit and starting and stopping of the induced draft fan. The oil receiving disc is arranged in the heat preservation box body, and thus the risk that edible oil is sprinkled on the electric heating unit can be completely eradicated. The temperature signal collected by the temperature sensor is used for controlling starting and stopping of the electric heating unit and starting and stopping of the induced draft fan, and thus the temperature of the heat preservation box can be intelligently controlled. Hot air produced by the electric heating unit is guided into a food storage cavity through the induced draft fan and the electric heating unit, accordingly, the heating uniformity of the food is improved, and a large amount of food can be stored in the heat preservation box.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted heat preservation equipment, in particular to a heat preservation box with multi-level safety protection. Background technique [0002] With the development of railway transportation, in order to improve the service quality, the train set is equipped with an incubator to keep the food on the train warm to ensure the taste and nutrition of the food. The existing incubator includes a box body for storing food, and a heating unit is arranged at the bottom of the box body. The heating unit mostly adopts electric heating, and the hot air generated by the electric heating equipment is used to heat and keep the box body warm. The food in the incubator is placed above the electric heating equipment, there is a risk of cooking oil spilling on the electric heating unit, which will cause serious safety hazards, and because there are too many foods stored in the incubator, the hot air in the box will ...

AI Technical Summary

Problems solved by technology

The existing incubator includes a box body for storing food, and a heating unit is arranged at the bottom of the box body. The heating unit mostly adopts electric heating, and the hot air generated by the electric heating equipment is used to heat and keep the box body warm. The food in the incubator is placed above the electric heating equipment, there is a risk of cooking oil spilling on the electric heating unit, which will cause serious safety hazards, and because there are too many foods stored in the incubator, the hot air in the box will not circulate evenly, which will cause serious safety hazards. uneven heating of food

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