Electromagnetic induction quick water heating device

Abstract

The invention discloses an electromagnetic induction quick water heating device which relates to an electric appliance. The center of the water heating device is provided with a heating body rod; the center of the heating body rod is provided with a thermal cut-out protector installation hole; a thermal cut-out protector is arranged in the thermal cut-out protector installation hole; the lead-out wire of the thermal cut-out protector is led out through the thermal cut-out protector installation hole, and the thermal cut-out protector installation hole is sealed by a seal pad; a spiral groove is arranged on the heating body rod; a spiral support piece which is made of a high-temperature-resistant insulating material fine rod is inlaid in the spiral groove; the components are positioned in a tubular insulator; and a spiral gap which is formed among the heating body rod, the tubular insulator and the spiral support piece becomes a waterway. The electromagnetic induction quick water heating device has the advantages of safety, high efficiency, energy saving, and higher sensitivity and accuracy of the protection device, can well solve the direct or indirect induction current leakage problem of various electric water heaters in the prior art, plays a very good magnetizing role to the water during a heating process, and can make good-quality magnetized water.

Description

technical field [0001] The invention relates to an electric appliance. Background technique [0002] The existing electric water heaters used for showers basically have three heating methods for water. 1. Directly heat water by using water resistance to directly energize water to generate heat; 2. Apply electricity to a resistive heat generating body to generate heat through insulation The first layer of heat conduction heats the water indirectly. 3. Using the principle of electromagnetic induction to make a magnetic conductor generate heat, the water is heated through direct heat exchange with the heating element. Although the method of directly heating the water by energizing the water resistance is more efficient, the heating effect of different water qualities is different and it is not easy to control. When the water quality is not good, it is easy to cause leakage, and the water will be hydrolyzed when it is energized. Therefore, the use of water It is not safe to hea...

AI Technical Summary

Problems solved by technology

Although the method of directly heating the water by energizing the water resistance is more efficient, the heating effect of different water qualities is different and it is not easy to control. When the water quality is not good, it is easy to cause leakage, and the water will be hydrolyzed when it is energized. Therefore, the use of water It is not safe to heat the water by directly applying electricity to the resistance to generate heat; it is relatively safe to indirectly heat the water by applying electricity to the resistive heat generating body through the heat conduction of the insulating layer, but its safety and heating efficiency are a pair Contradictory, in order to pursue safety, the insulation layer should be thickened, and in order to improve efficiency, the insulation layer should be thinned. It is difficult to unify safety and heating efficiency

[0003] The principle of electromagnetic induction is used to make a magnetic conductor generate heat, and the water is heated through direct heat exchange with the heating element. The water is separated from the electromagnetic induction coil with electricity by a relatively thick insulator, and the thickness of the insulator has little correlation with the heating efficiency. Although the safety and efficiency are relatively easy to improve, there are still many problems. For example, due to structural problems, the electromagnetic induction coil will be burned due to poor heat dissipation during work, and there is a parasitic capacitance between the electromagnetic induction coil and water. The high-frequency alternating current applied to the coil will electrify the water through this parasitic capacitance, which will affect the efficiency and safety of water heating

In the ZL201010260385.7 invention patent, some of the above problems have been solved, but because the thermal cutout protector for preventing dry burning is installed outside the entire heater, the protection against dry burning is not sensitive, and after repeated dry burning due to the heat generated by the heating body. The heat rate is very fast, which will cause damage to the tubular insulation and other problems

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