Electronic water heater

Abstract

The invention discloses an electronical water heater, comprising outer cover (8), support bar (3) connected with outer cover (1) and base plate (2), and electronic circuit (1F-11F). Power module circuit is designed to power amplifier circuit comprising one IGBT pipe and damped diode. One end of it is connected with driving circuit by resistance and the other end is connected with heating induction coil. Driving circuit comprises triodes TV1, TV2; resistances R4-R9; capacitances C13, C14; diodes D8, D7; a power transformer B1, a power circuit BP2, a power ic IC1, and a driver ic IC2. The wire diameter of heating induction coil is 0.2-0.3mm and corresponded to flat cycling tank. Microcrystal glass clapboard is set between them. It is provided with high efficiency, long service life, good safety and easy production.

Description

technical field [0001] The invention relates to an electric heating device, in particular to an electronic water heater. Background technique [0002] The traditional electric water heater is composed of a water tank and an electric heating tube in it. The electric heating tube is a metal tube, and the heating wire is located in the center of the metal tube. The heat generated by the heating wire indirectly heats the water through the metal tube for people to use. The water heater with this structure not only has low thermal efficiency and small water flow, but also easily generates electric leakage, which endangers the personal safety of users. In order to solve the safety problem, people use heating and use in stages, that is, the water is heated first, and then used after power off, which is extremely inconvenient to use. In order to improve the thermal effect and safety, in recent years, some people have made electronic water heaters, which use low-frequency and power-f...

AI Technical Summary

Problems solved by technology

The water heater with this structure not only has low thermal efficiency and small water flow, but also is prone to electric leakage, which endangers the personal safety of users.

In order to solve the safety problem, people use heating and use in stages, that is, the water is heated first, and then used after power off, which is extremely inconvenient to use.

In order to improve the thermal effect and safety, in recent years, some people have made electronic water heaters, which use low-frequency and power-frequency magnetic induction as heating heat sources. However, due to the unreasonable design of the power component circuit, drive circuit, heating coil and water channel, the energy-saving effect is not obvious, and the service life of the product is not obvious. Short, unstable performance, difficult processing technology, poor water discharge effect and other reasons, it is difficult to popularize and use in large quantities

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