CN201589312U

CN201589312U - Novel electromagnetic oven core

Info

Publication number: CN201589312U
Application number: CN2010200004442U
Authority: CN
Inventors: 刘克敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-15
Filing date: 2010-01-15
Publication date: 2010-09-22
Anticipated expiration: 2020-01-15

Abstract

The utility model provides a novel electromagnetic oven core which comprises a power supply circuit, a main circuit, a single chip microcomputer control circuit and a protection circuit. A high-frequency current generated by the electronic circuit board components is processed by a rectifying circuit for AC-to-DC conversion and then is applied onto a switch module IGBT through an excitation coil, the IGBT is switched on or off under the control of a driving signal, and the high-frequency current (20 kHz to 40 kHz) acts on a helical magnetic induction coil inside the excitation coil to generate a high-frequency alternating magnetic field. By the combination of the microcomputer hardware and software techniques as well as the latest electromagnetic induction heating technique and the soft startup technique, the novel electromagnetic oven core has the characteristics of long service life, stable performance, strong anti-jamming capability, water resistance, electricity leakage protection and the like. In addition, the wide-voltage design enlarges the application range and is compatible to the No.201 stainless steel or No.403 stainless iron cookers.

Description

A kind of electromagnet stove movement

Technical field

The utility model relates to a kind of electromagnetic oven movement, relates in particular to a kind of electromagnet stove movement that is applicable to commercial kitchen.

Background technology

Electromagnetic oven is because thermal efficiency height, easy to use, safety and sanitation, the advantage of no gas pollution and liking of consumers in general extremely, at present, most of electromagnetic ovens drive circuit adopt direct current supply to press the constant current control mode of transfer drive artery towards width, the high-frequency electromagnetic oven of sort circuit structure can't adapt to this low reactance-resistance ratio of pot body, Bian Dong specific loads significantly, deal with improperly, circuit is quasi-resonance fully just, and the power shelves in each cycle stand need the surge current of electrion on the resonant capacitance in the electromagnetic oven main circuit, circuit efficiency is low, switching loss is big and cause high-power serious heating, strain, even burn, surge voltage also very easily appears in high power shelves end pot process, cause the electromagnetic oven poor reliability thus, the repair rate height influences popularizing and promoting of high-frequency electromagnetic oven.

Summary of the invention

At the defective of prior art, the purpose of this utility model is to provide the electromagnet stove movement of a kind of compact conformation, dependable performance, long service life.

The technical scheme that the utility model adopted is: a kind of electromagnet stove movement; form by electric power loop, major loop, Single-chip Controlling loop, holding circuit; high frequency electric by the generation of electronic circuit board part; via rectification circuit alternating current is converted to direct current; be added on the switch module IGBT through magnet exciting coil again; IGBT is driven the gauge tap and the conducting of signal, and the 20KHZ-40KHZ high frequency electric forms high frequent alternating magnetic field via spiral helicine Magnetic induction coil in the magnet exciting coil.

The beneficial effects of the utility model are, adopt the combination of micro computer hardware and software technology, continue to use up-to-date electromagnetic induction heating technology and soft Starting Technology, long product lifecycle, and stable performance, antijamming capability is strong, and has waterproof, characteristics such as anticreep; Throw pot and throw away the output of maintenance power, adapt to Chinese cook's operation requirement fully; Wide voltage design, single-phase operating voltage 140V～270V, applied widely, pans such as compatible #201 stainless steel or #403 stainless iron.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples;

Fig. 1 is the utility model electromagnetic oven movement circuit johning knot composition;

The specific embodiment

The utility model electromagnetic oven movement utilizes electromagnetic induction principle to convert electrical energy into heat energy; it is made up of element circuits such as electric power loop, major loop, Single-chip Controlling loop, holding circuits; high frequency electric by the generation of electronic circuit board part; via rectification circuit alternating current is converted to direct current; be added on the switch module IGBT through magnet exciting coil again; IGBT is driven the gauge tap and the conducting of signal, and the 20KHZ-40KHZ high frequency electric forms high frequent alternating magnetic field via spiral helicine Magnetic induction coil in the magnet exciting coil.The iron pan or the stainless-steel pan of material place on the kitchen range top if be magnetic this moment, produce the electric current (being eddy current) of alternation in the metallic object of heating position, eddy current makes the random motion of pan iron molecule high speed, molecule runs foul of each other, rubs and produces heat energy and make utensil at a high speed heating voluntarily itself, thereby convert electrical energy into heat energy, be used for heating and cooking food, thereby reach the purpose of cooking.

Claims

1. electromagnet stove movement; form by electric power loop, major loop, Single-chip Controlling loop, holding circuit; it is characterized in that high frequency electric by the generation of electronic circuit board part; via rectification circuit alternating current is converted to direct current; be added on the switch module IGBT through magnet exciting coil again; IGBT is driven the gauge tap and the conducting of signal, and high frequency electric forms high frequent alternating magnetic field via spiral helicine Magnetic induction coil in the magnet exciting coil.

2. electromagnet stove movement according to claim 1 is characterized in that the high frequency electric scope in the described magnet exciting coil is 20KHZ-40KHZ.