Liquid heating container

Abstract

The invention relates to a liquid heating container. The liquid heating container comprises main body of container, heating device, connector for transfering electrical signal, electrical switching contact for connecting the power with the heating device, thermal control module for controlling the electrical switching contact. The heating device is at the lower end of the main body of the container and clings to the bottom of the main body. The thermal control module contacts with the heating device and is under the heating device. A projecting part which projects upwards is set at the bottom of the main body. The thermal control module comprises a touch device for turning on the electrical switching contact and the touch device is installed on the projecting part of the main body. When the liquid in the container is very few, even though the main body inclines, the projecting part firstly appears out from the liquid surface than the other parts of the bottom of the container, because the projecting part is not covered with the liquid, the temperature rapidly accends. After the touch device of the thermal control module in the projecting part takes into action, the electrical switching contact is directly or indirectly turned on, therefore the dry burn of the heating container is effectively prevented.

Description

Technical field: [0001] The invention relates to a liquid heating container, in particular to a liquid heating container such as an electric kettle, a coffee pot and the like provided with a dry-boiling protection structure, which belongs to the transformation technology of the liquid heating container. Background technique: [0002] Liquid heating containers currently on the market, especially electric heating containers such as electric kettles and coffee pots, all have the phenomenon of dry burning when there is no liquid in the container, which directly affects the service life of the electric heating container and easily causes safety accidents. [0003] In response to the above problems, early electric heating containers (such as electric kettles, etc.), such as the electric heating container disclosed in British Patent Publication No. GB9411573, have a bimetallic sheet in contact with the heating device at the bottom of the container. When the container When there is ...

AI Technical Summary

Problems solved by technology

But when this structure has less water in the container, if the electric heating container (such as electric kettle, etc.) tilts a small angle (for example 5 degrees) to a certain direction, there may be liquid covering on the bottom surface of the container, and If there is no liquid covering other places on the bottom of the container, dry burning will also occur on the bottom without liquid covering; for the above problems, Chinese Patent Application No. 95194418.5 discloses a kind of spacer at the bottom of the container. Action bimetal (or other trigger device), this scheme solves the above problems to a certain extent, but it has not completely solved the problem of dry burning when the container is tilted. When the connection direction of the two metal sheets is vertical, the inner side of the bottom of the pot that is in contact with the two metal sheets is covered with liquid, while the inner side of part of the bottom surface of the pot is not covered by liquid. At this time, the part that is not covered by the liquid will also appear dry burning

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