Vacuum and heat storage dual heat preservation electric kettle with long-acting automatic heat preservation structure

Abstract

The invention discloses a vacuum and heat storage dual heat preservation electric kettle with a long-acting automatic heat preservation structure. The kettle comprises a kettle body and a kettle lid, wherein the kettle body comprises a housing and an internal container arranged inside the housing; an electric heater is arranged at the bottom of the kettle body; an enclosed type phase change heat storage layer is arranged between the housing and the internal container; an enclosed type vacuum thermal insulation layer is formed between the housing and the enclosed type phase change heat storage layer or between the enclosed type phase change heat storage layer and the internal container; the electric heater comprises a heating body and a heat storage body; the heating body comprises a water boiling heating body and a heat preservation electric heating plate heating body; the water boiling heating body and the heat preservation electric heating plate heating body are respectively connected with temperature controllers thereof in series and then connected in parallel at both ends of a power supply; the heat storage body is connected with the heating body through a plurality of connecting pieces to form a dispersion connection structure; and the heat storage body and the internal container form a dotted connection structure. According to the invention, the heat storage body has a self-heat preservation characteristic, and the heat storage body heats the internal container and boiled water thereof in a slow and lasting manner, and thus the kettle has the beneficial effect of long acting heat preservation.

Description

technical field [0001] The invention relates to a vacuum and heat storage double-insulation electric kettle with a long-term heat preservation structure. The electric kettle can boil water and keep the water temperature at a desired suitable temperature for a long time. 95°C occasions. It belongs to the technical field of electric heating appliances for daily necessities. Background technique [0002] At present, electric water heaters are common tools in people's daily life. Electric water heaters are welcomed by people because they boil water quickly, are smokeless and odorless, and have features such as environmental protection. Especially when people make tea, coffee, milk powder, lotus root powder or kung fu tea, they have special requirements for water quality and temperature. For example, brewing high-grade teas such as Longjing and Maojian, usually boiled water at 80-85°C is the most suitable; brewing coffee or milk powder, lotus root powder, etc., usually requires...

AI Technical Summary

Problems solved by technology

However, most of the electric water heaters in the prior art have no heat preservation function, or, although they have a certain heat preservation function, they have the disadvantages of unreasonable structure and poor heat preservation effect, so they cannot meet people's daily needs.

The traditional devices used for boiling water heat preservation, such as thermos bottles, rely on vacuuming in the middle of the double-layer bottle liner and sealing of the bottle plug to reduce heat loss and ensure heat preservation. However, these heat preservation devices do not have self-heating and boiling water functions. , especially when any one of the two is damaged, its heat preservation effect will drop significantly, the temperature of boiling (boiling) water will also drop rapidly, and the glass thermos bottle will be easily damaged.

Therefore, these thermos bottles cannot satisfy people's needs for making tea, coffee, milk powder, lotus root starch or kung fu tea

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