Heating chassis of thermal-insulating and heat-preserving electric heating kettle

Abstract

The invention relates to a heating chassis of a thermal-insulating and heat-preserving electric heating kettle. The heating chassis comprises a crack-resistant and high temperature-resistant glass plate, a heating film is sintered on the lower bottom surface of the glass plate, a heat-preserving film is aerogel or glass thermal-insulating coating and is plated on the surface of the heating film, clamping rings are arranged on the outer circumferential sides of the glass plate, the bottom surfaces of the clamping rings are positioned under the bottom surface of the heat-preserving film, a temperature controller is fixedly connected with the bottom surfaces of the clamping rings, and the input end of a bipolar power supply of the temperature controller is connected with two electrodes of the heating film. As the electric heating film is uniformly arranged on the bottom surface of the glass heating chassis, the whole chassis is uniformly heated in the heating process, so that the situation that a glass kettle container is likely to crack due to over-high local water temperature is avoided, the service life of the kettle container is prolonged, and the production cost of a health-preserving kettle is reduced.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a heating chassis of a heat-insulating glass electric kettle used for electric heating kettles and health preserving kettles. Background technique [0002] Kettle is one of the necessary electrical appliances in daily life. In recent years, electric kettles have become more and more widely used. Compared with water dispensers, they have the advantages of fast water heating and high temperature. At present, electric kettles on the market have gradually changed from directly plugged-in bases to electronic kettles with electronic bases, which can integrate multiple functions and have a beautiful appearance, and are increasingly sought after by high-end customers. [0003] An electric kettle with a base, such as a health pot commonly used by people, has a more refined shape than a directly plugged electric kettle, and the wiring of the electric heating is more reasonable. The elec...

AI Technical Summary

Problems solved by technology

Although it is very convenient to use, there are the following problems in the process of use: the bottom of the stainless steel plate is welded with a thick resistance wire for electric heating, and often the end surface of the stainless steel plate contacting the thick resistance wire will cause the local water temperature to rise too fast due to the instantaneous temperature rise. The high temperature will easily lead to the rupture of the glass pot liner, which will increase the production cost; the end face with the thick resistance wire is in a high temperature state during the power-on period, and the part is easy to oxidize, and the upper surface of the electric heating pot chassis that has been used for a long time has a circle of brown The oxide layer, the chassis of the electric heating pot has a short service life and high cost; the top surface of the stainless steel plate is directly in contact with the water to be quoted, and during the heating process of the stainless steel plate, heavy metals are easy to precipitate at high temperatures, causing damage to drinking water. Pollution

[0005] Moreover, the lower bottom surface of the heating chassis in the prior art is provided with heat dissipation holes. In the process of heating up, in order to avoid the local temperature from rising too fast and dissipate heat in real time, the heat utilization rate of the electric heating is not high in this way, and the electric energy is wasted. And it takes a long time to boil water

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