Heat preservation meal box

Abstract

The invention relates to a meal box, and more particularly, relates to a heat preservation meal box. The heat preservation meal box comprises a meal box body and is characterized in that the section of the meal box is of a U shape; the meal box is of a double-layer structure; a water injection port is formed at the top end of the meal box body; an electric heating pipe is arranged in a cavity at the bottom end of the meal box body; the electric heating pipe is connected with a waterproof line and extends out of the outer wall of the meal box body to be connected with a power switch. The heat preservation meal box is reasonable in design and simple in structure; when the heat preservation meal box is in use, firstly, a certain volume of water or other liquid with relatively high specific heat capacity is added from the water injection port, a power supply of the electric heating pipe is turned on, when the heat preservation meal box is heated to a certain temperature, a power supply switch is turned off, the water injection port is plugged by a plug, a meal box cover is covered, and at the moment, meals in the meal box can be subjected to heat preservation for long time.

Description

technical field [0001] The present invention relates to a lunch box, more specifically relates to a thermal insulation lunch box. Background technique [0002] Insulated lunch boxes are one of the essential tableware for every family. Whether you are taking out food for travel or work, or preparing meals for patients, you cannot do without an insulated lunch box. Although existing thermal insulation lunch boxes can achieve thermal insulation to a certain extent, they have the disadvantages of poor thermal insulation effect and insufficient thermal insulation time. Contents of the invention [0003] Aiming at the above-mentioned technical problems, the present invention provides a lunch box capable of keeping heat for a long time. [0004] In order to achieve the above object, the technical solution adopted by the present invention is, a kind of thermal insulation lunch box, including the lunch box body, characterized in that: the section of the lunch box is U-shaped, and ...

AI Technical Summary

Problems solved by technology

Although the existing thermal insulation lunch boxes can achieve thermal insulation to a certain extent, they have the disadvantages of poor thermal insulation effect and insufficient thermal insulation time.

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