Fast Magnetic Heater

Abstract

The invention discloses a rapid electromagnetic heater which includes a ferrite seat, a magnetic conductive heating plate and an electromagnetic winding. The ferrite seat is provided with an annular accommodating groove which is recessed on a surface of a top side of the ferrite seat. The accommodating groove is provided with at least one externally communicated slit both on the inner side and the outer side of the periphery of the accommodating groove. One magnetic conductive heating plate molded from a high magnetic conductive metal covers above the accommodating groove of the ferrite seat. One electromagnetic winding which is wounded in a ring shape is arranged inside the accommodating groove. The electromagnetic winding has two terminals which respectively extend outwardly from the two slits. Subsequent to being energized, the two terminals enable the electromagnetic winding to generate a high frequency magnetic field loop which acts between the ferrite seat and the magnetic conductive heating plate. The rapid electromagnetic heater uses remanence loss of the magnetic conductive plate, and cooperates with the surface to form an eddy current so as to produce large amount of heat instantly, which can achieve rapid high temperature heating.

Description

technical field [0001] The invention relates to a fast electromagnetic heater, in particular to an electromagnetic heater structure with excellent heat conversion efficiency and capable of rapid high-temperature heating. Background technique [0002] Traditional electric heating devices are relatively simple, like ordinary electric furnaces or electric rice cookers, which use the characteristics of electric heating wires or electric heating tubes to generate heat (Q=0.24*I2Rt) after being energized to directly heat the default items or device. [0003] In addition, as disclosed in the Taiwan Invention Patent Publication No. I471510 "Electric Heating Device" invention patent case, it includes a liquid pipeline divided into a plurality of heating sections, and an electric heating rod is respectively accommodated inside each heating section. The aforementioned electric heating rod It is used to supply heat energy to the liquid flowing through the heating section, so that the t...

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Problems solved by technology

[0004] However, the above-mentioned heating mechanisms using electric heating wires, electric heating rods or electric heating tubes basically have problems such as slow heating and poor heat conversion efficiency.

[0005] There are also products that use an electromagnetic field to act on the external magnetically conductive metal, and use the eddy current on the metal surface to generate loss and generate heat (such as: an induction cooker). However, since this type of electromagnetic field acts on an open space, it is difficult to control the leakage of electromagnetic waves and cannot Meet more stringent applications and regulations

[0006] There are also heating mechanisms such as air conditioners and air conditioning circuits that use refrigerant compression or expansion to transfer heat. Although this heating method has better heat conversion efficiency and can effectively save energy consumption, its components include: compressor , condenser, evaporator, expansion valve and related refrigerant pipelines and other components, so not only the overall structure is more complex and costly, but also the volume is relatively large, so it will limit the development and application of this heating device

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