CN201995154U

CN201995154U - Electromagnetic induction heating controller

Info

Publication number: CN201995154U
Application number: CN2011200219699U
Authority: CN
Inventors: 董汉立; 王淑芳
Original assignee: TIANJIN SIXIANG ELECTRONIC EQUIPMENT CO Ltd
Current assignee: TIANJIN SIXIANG ELECTRONIC EQUIPMENT CO Ltd
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2011-09-28
Anticipated expiration: 2021-01-24

Abstract

The utility model relates to an electromagnetic induction heating controller, which comprises a singlechip, a power supply circuit, a PWM (Pulse-Width Modulation) circuit, a switch control circuit, an oscillating circuit, a synchronous circuit, an IGBT (Insulated Gate Bipolar Transistor) module and a major loop coil, wherein, a main power source is respectively connected with a current detection circuit, a VAC (Alternating Current Voltage) monitoring circuit, a square wave circuit, a surge voltage monitoring circuit and the major loop coil; the current detection circuit, the VAC monitoring circuit and the square wave circuit are respectively connected with the singlechip; in addition, the major loop coil comprises cables, and the cables are twisted to form a spiral shape and connected with an output terminal in a host machine. The electromagnetic induction heating controller is characterized in that the electricity can be saved more than 40 percent compared with the resistance type heating mode under the same condition, and the pre-heating time is reduced by two-thirds, so that large amounts of electrical energy can be saved, production cost is lowered, manufacturing cost is lowered, product competitiveness is improved, and enormous economic benefits are brought to an enterprise.

Description

The electromagnetic induction heating controller

Technical field

The utility model relates to the electrical equipment firing equipment, particularly a kind of electromagnetic induction heating controller.

Background technology

At present, the energy saving heater product is widely used in heating such as electrical equipment firing equipment, chemical industry heating, clothes firing equipment, medical science manufacturing heating, mold heating device, food heating, pipeline heating, copper, Aluminum heating, plastic wire-drawing, blown film, granulation, injection moulding; Cable is produced heating such as extruder, plastic extruding machine; Heating such as thermoplastic plastic's tubing, section bar production; Pipeline tracing, thermostatic control heating etc.

Along with all trades and professions all are being faced with intense market competition, various products have also progressively been gone on low margin age.Industries such as rubber, chemical industry, medicine also are like this.And in the production process of industry product, the electricity charge also account for the very big proportion of production cost.Particularly domestic in recent years power supply shortage, the electricity charge go up, and are reduced cost especially, enhance competitiveness and have brought very adverse influence, have increased serious burden to enterprise.Energy-saving and cost-reducing country, society, the enterprise's Focal Point of Common Attention of having become.

Usually used traditional resistor formula heater in above-mentioned technical field in the past, resistance-type mode of heating warm-up time is long, thermal efficiency ratio is lower, energy-saving effect is poor, therefore from saves energy, reduce producing cost, reduce production costs and improve the product competitiveness angle and consider, resistance-type mode of heating backward in technique is necessary to improve and innovate.

Summary of the invention

The purpose of this utility model is exactly for overcoming the deficiencies in the prior art, technological improvement difficult problem at heating controller and mode of heating, provide a kind of electromagnetism energy-efficient heater,, realize the energy-efficient and skill upgrading of electric heater product in order to replace traditional resistor formula heater.

The utility model is to realize by such technical scheme: the electromagnetic induction heating controller, comprise heater circuit, it is characterized in that, heater circuit mainly is made of single-chip microcomputer, power circuit, PWM modulation circuit, ON-OFF control circuit, oscillating circuit, synchronous circuit, IGBT module and major loop coil, major loop coil output is located on the main circuit board that heater circuit gets, the major loop coil is drawn from major loop coil output, is installed on the heated equipment unit;

The main power source of described power circuit connects current detecting, VAC monitoring, circuit and square-wave, surge voltage observation circuit and major loop coil respectively; Current detecting, VAC monitoring (alternating voltage monitoring), circuit and square-wave connect single-chip microcomputer respectively;

The I/O port of described single-chip microcomputer is connected with operation control circuit, PWM modulation circuit, ON-OFF control circuit and surge voltage observation circuit respectively;

Described PWM modulation circuit, ON-OFF control circuit connect respectively and control oscillation circuit, and output end of oscillating circuit connects the IGBT module, and IGBT module output connects the major loop coil; The major loop coil connects synchronous circuit, and synchronous circuit is connected to oscillating circuit signal feedback end.

The major loop coil adopts cable to be twisted into twisted shape, inserts major loop coil output in the main frame.

Electromagnetic induction heating controller of the present utility model has replaced traditional resistor formula heater, it is present optimal energy-efficient electric heater product, this product have following with characteristics: 1, the energy-efficient heat efficiency is up to more than percent 95, under the equal conditions, economize on electricity more than percent 40 than resistance-type mode of heating, shorten 2/3 warm-up time, thereby saved a large amount of electric energy, reduced producing cost, reduced production cost, improved competitiveness of product, for enterprise has brought huge economic benefit; 2, reliable 3, reduction expense, heating part adopts the construction of cable, and heating cable itself can not produce heat, long perfomance life.Avoided the resistance-type heating to need the disadvantage of often safeguarding and regularly replacing, this product later stage does not have maintenance cost substantially; 4, improve environment,

Traditional resistance-type firing equipment is by the heat exchange pattern heating, thereby has wasted a large amount of energy.So just cause equipment appearance temperature too high, production environment is become badly, very big to the human injury.The electromagnetic induction heating controller makes the outer temperature of machine reach available hand and touches, and has improved production environment energetically, reduces traditional cooling installation expense.In line with the theory of " people-oriented ", create the production environment of safety and comfort to factory.

Description of drawings

Fig. 1 is an electromagnetic induction heating controller circuitry theory diagram.

Embodiment

Understand the utility model for clearer, describe the utility model in detail below in conjunction with drawings and Examples;

As shown in Figure 1, the utility model is to utilize electromagnetic induction principle to convert electric energy to the heater of heat energy, by rectification circuit the alternating voltage of 50/60 Hz is become direct voltage, convert direct voltage to high frequency voltage that frequency is 20-40KHz through control circuit again, the electric current that changes flows through the magnetic field that coil can produce the high speed variation at a high speed, when the magnetic line of force in the magnetic field by magnetic conduction again during conductive metallic material, can in metal material, produce countless little eddy current, make metal material heating at a high speed voluntarily itself, thereby reach the purpose of heating.

The magnetic induction heating controller comprises heater circuit, and heater circuit mainly is made of single-chip microcomputer, power circuit, PWM modulation circuit, ON-OFF control circuit, oscillating circuit, synchronous circuit, IGBT module and major loop coil,

The main power source of power circuit connects current detecting, VAC monitoring, circuit and square-wave, surge voltage observation circuit and major loop coil respectively; Current detecting, VAC monitoring, circuit and square-wave connect single-chip microcomputer respectively;

The I/O port of single-chip microcomputer is connected with operation control circuit, PWM modulation circuit, ON-OFF control circuit and surge voltage observation circuit respectively;

PWM modulation circuit, ON-OFF control circuit connect respectively and control oscillation circuit, and output end of oscillating circuit connects the IGBT module, and IGBT module output connects the major loop coil; The major loop coil connects synchronous circuit, and synchronous circuit is connected to oscillating circuit signal feedback end.

According to the above description, can realize scheme of the present utility model in conjunction with art technology.

Claims

1. electromagnetic induction heating controller, comprise heater circuit, it is characterized in that, heater circuit mainly is made of single-chip microcomputer, power circuit, PWM modulation circuit, ON-OFF control circuit, oscillating circuit, synchronous circuit, IGBT module and major loop coil, major loop coil output is located on the main circuit board that heater circuit gets, the major loop coil is drawn from major loop coil output, is installed on the heated equipment unit; The main power source of described power circuit connects current detecting, VAC monitoring, circuit and square-wave, surge voltage observation circuit and major loop coil respectively; Current detecting, VAC monitoring, circuit and square-wave connect single-chip microcomputer respectively; The I/O port of described single-chip microcomputer is connected with operation control circuit, PWM modulation circuit, ON-OFF control circuit and surge voltage observation circuit respectively; Described PWM modulation circuit, ON-OFF control circuit connect respectively and control oscillation circuit, and output end of oscillating circuit connects the IGBT module, and IGBT module output connects the major loop coil; The major loop coil connects synchronous circuit, and synchronous circuit is connected to oscillating circuit signal feedback end.

2. electromagnetic induction heating controller as claimed in claim 1 is characterized in that, the major loop coil adopts cable to be twisted into twisted shape, inserts major loop coil output in the main frame.