Water cooling electromagnetic heating device

Abstract

The invention relates to a water cooling electromagnetic heating device which comprises an excitation coil and a drive and control circuit. The excitation coil is used for producing alternating magnetic fields to be matched with a ferromagnetic pot to form electromagnetic vortexes to heat the ferromagnetic pot, and the drive and control circuit is used for controlling and driving the excitation coil to work. The water cooling electromagnetic heating device is characterized in that the excitation coil is an integrated structure formed by winding metal tubes with water cooling tubes, the metal tubes with the water cooling tubes are composed of hollow metal tubes with inner side walls and outside walls provided with insulation layers, the insulation layers on the inner side walls of the hollow metal tubes form a water channel and communicated with a water circulation cooling control system to form a water circulation circuit with the water circulation cooling control system, and the water circulation cooling control system cools the excitation coil. The water cooling electromagnetic heating device has the advantages that the cooling effect is good, the device is free of noise, safe and durable and high in intelligence degree.

Description

technical field [0001] The invention relates to a cooking utensil, in particular to a water-cooled and heat-dissipating electromagnetic heating device. Background technique [0002] As a high-efficiency and energy-saving electric heating appliance, the induction cooker has become an indispensable product in people's life. However, due to the high thermal efficiency of the induction cooker, the heating of the high-frequency induction heating coil and the control circuit is also very obvious. Most of the prior art uses cooling fans to dissipate heat and cool down to realize the safe operation of the induction cooker. The defect of short life, especially in the environment with high oil fume for a long time, the cooling fan and electronic components are easy to stop working due to a large amount of oil, which affects the service life of the induction cooker. Especially for high-power induction cooker (cooker), above-mentioned defective is particularly outstanding. [0003] Th...

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Problems solved by technology

[0003] The publication date is August 11, 1993, and the invention patent application with the publication number CN 1075198A discloses a water-cooled induction cooker. The induction cooker uses a hollow tube body coiled into an induction coil, and the hollow tube body and the external water tank And the cooling device is connected to form a water circulation to achieve heat dissipation and cooling. This application is suitable for high-power induction cookers and also uses water cooling for heat dissipation, but a cooling fan is still required for heat dissipation; in addition, when copper pipes are used as conduits for water conduction, it is easy to cause short circuits due to leakage; in addition , Copper tubes in contact with water for a long time will easily cause oxidation and corrosion, resulting in poor heat conduction and affecting the life of the reel

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