CN209562836U - Induction heating power DSP control device - Google Patents

Abstract

Induction heating power DSP control device: have middle control chip, AD data processing module, key module, communication module, alarm module, pwm signal output module all access in control chip.The utility model Acquisition Circuit is abundant, and detection information is comprehensive, completes the complete detection to induction heating equipment operation information.

Description

Induction heating power DSP control device

Technical field

The utility model relates to induction heating control fields, and in particular to induction heating power DSP control device.

Background technique

Induction heating is that alternating current is passed through in induction coil, makes the material being heated (i.e. using electromagnetic induction principle Workpiece) inside generate eddy current, workpiece is heated by the energy of these eddy currents, essence be exactly lean on induction coil Electric energy is passed to the workpiece to be heated, then electric energy is changed into thermal energy in metal inside, induction coil and is heated workpiece simultaneously It is not directly contacted with, energy is transmitted by electromagnetic induction.It 19 beginnings of the century by it has been found that then due to it was recognized that Electromagnetic induction inhibits this as possible in power generation, in power transmission and the various harm of bring in the application of electrical equipment Effect.Add until the late 19th century people just start purposive apply this principle in the melting, heat treatment, pressure of metal Diathermanous equal fields before work, thus there have been various induction heating equipments.In China, traditional heating mode is mostly It is heating with coal, oil, gas or electricity, it is scarce that there are energy consumptions is high, working condition is poor, environmental pollution is serious, processing quality is difficult to control etc. Fall into, and induction heating has the advantages that not available for many traditional approach: functional reliability is high, it is pollution-free, high-efficient and plus Thermal capacitance is easy to control etc., is widely used in the industrial processes such as Metal Melting, diathermanous, heat treatment and welding, becomes metallurgy, state Departments and the indispensable technological means such as casting, forging and ship, aircraft, auto manufacturing such as anti-, machining.

The control system that traditional induction heating power mostly uses simulation control or simulation to combine with number.Although mesh Front simulation control technology is highly developed, but there is the disadvantages of such as null offset, flexibility is poor.The number of induction heating power Word intelligentized control method has become a trend of its research and development.

Modern induction heating power technology is power application electronic semiconductor components, synthetical automatic control theory, computer The multi-disciplinary edges interleaving techniques such as (microprocessor) technology and electromagnetic technique.With the development of industry, induction heating power is answered With also increasingly extensive, currently, induction heating power as a kind of energy conservation, efficiently heat heat treatment equipment, just towards all solid state Change, high-frequency high-power, properties of product greenization and the intelligentized direction of control mode are developed.

Control mode is intelligentized on condition that be required to comprehensively detect the operation information of induction heating equipment, Obtain comprehensive operation information.

Utility model content

In order to solve the above technical problems, the utility model provides induction heating power DSP control device.

The technical solution of the utility model specifically:

Induction heating power DSP control device: there is middle control chip, AD data processing module, key module, communication mould Block, alarm module, pwm signal output module control chip in all accessing, and analog quantity detection circuit accesses AD data processing module；AD Data processing module has A/D conversion circuit, converts to the analog signal of the induction heating equipment of analog quantity detection circuit acquisition For digital signal；Communication module has serial communication circuit, and external data can be made by controlling chip in serial ports access.

Further: analog quantity detection circuit has induction heating equipment main circuit input voltage detection circuit, main circuit Input electric cur- rent measure circuit, chopper circuit voltage detecting circuit, chopper circuit current detection circuit, inverter bridge voltage detecting electricity Road, inverter bridge current detection circuit, ambient temperature detection circuit, radiator temperature detection circuit, Power Regulation potentiometer, external input Power analog amount detection circuit, water pressure of cooling water detection circuit.

It is further: communication module have RS485 turns serial port circuit, RS422 turns serial port circuit, display communicating circuit, External communication control circuit.

Further: AD data processing module also has filter circuit.

Further: alarm module has LED light and loudspeaker.

Further: pwm signal output module has multi-channel PWM signal generator.

Further: key module, which has, to be started key, stops key, emergency stop key.

Further: key module uses push button key.

It is further: also to there is touch display, touch display accesses main control chip by communication module.

Further: main control chip uses dsp chip.

Compared with the existing technology, the technical effect of the utility model is that Acquisition Circuit is abundant, and detection information is comprehensive, is completed To the complete detection of induction heating equipment operation information.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

The utility model is applied in existing induction heating equipment.

Such as Fig. 1, induction heating power DSP control device, there is middle control chip, AD data processing module, leads at key module News module, alarm module, pwm signal output module control chip in all accessing, and analog quantity detection circuit accesses AD data processing mould Block；AD data processing module has A/D conversion circuit, to the analog signal of the induction heating equipment of analog quantity detection circuit acquisition Be converted to digital signal；Communication module has serial communication circuit, and external data can be made by controlling chip in serial ports access.

There is analog quantity detection circuit induction heating equipment main circuit input voltage detection circuit, main circuit input current to examine Slowdown monitoring circuit, chopper circuit voltage detecting circuit, chopper circuit current detection circuit, inverter bridge voltage detecting circuit, inverter bridge electricity Current detection circuit, ambient temperature detection circuit, radiator temperature detection circuit, Power Regulation potentiometer, external input power analog amount Detection circuit, water pressure of cooling water detection circuit.

Communication module has that RS485 turns serial port circuit, RS422 turns serial port circuit, display communicating circuit, external control are logical Interrogate circuit.

AD data processing module also has filter circuit, can be filtered operation to the data of input, avoid noise number According to the influence to valid data.

Alarm module has LED light and loudspeaker.

Pwm signal output module has multi-channel PWM signal generator.

Key module, which has, to be started key, stops key, emergency stop key, using push button key.

Induction heating power DSP control device also has touch display, and touch display is accessed by communication module and led Chip is controlled, real-time display can be carried out to the data that analog quantity detection circuit detects, and the touch-control of touch display can be passed through Key operates induction heating power DSP control device.

Main control chip uses the dsp chip of U.S. TI, model that there are many dsp chips of TI, including TMS320F2407, TMS320F2808, TMS320F2812, TMS320F28335, that application is most at present is dsp chip TMS320F2407, but is examined Consider the chip and releases that the time is longer, and resource is deficienter relative to more advanced chip, so excluded, The people that TMS320F2808 and TMS320F28335 are used is less, and stability is unknown；Therefore select TMS320F2812, the chip from Extensive popularization is obtained after volume production, usage amount is larger, orders goods quick and resourceful, can flexible Application.

The utility model has carried out sufficient detection to the running state information of induction heating equipment.Communication module can pass Defeated various protocols data can be connect with host computer by communication module and carry out data interaction；It can be carried out by communication module Function Extension, external-connection displayer or control equipment.

Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as The protection scope of the utility model.

Claims (10)

1. induction heating power DSP control device, it is characterised in that: have middle control chip, AD data processing module, key mould Block, communication module, alarm module, pwm signal output module control chip in all accessing, and analog quantity detection circuit accesses at AD data Manage module；AD data processing module has A/D conversion circuit, the simulation to the induction heating equipment of analog quantity detection circuit acquisition Signal is converted to digital signal；Communication module has serial communication circuit, and external data can be made by controlling core in serial ports access Piece.

2. induction heating power DSP control device as described in claim 1, it is characterised in that: analog quantity detection circuit has Induction heating equipment main circuit input voltage detection circuit, main circuit input electric cur- rent measure circuit, chopper circuit voltage detecting electricity Road, chopper circuit current detection circuit, inverter bridge voltage detecting circuit, inverter bridge current detection circuit, environment temperature detection electricity Road, radiator temperature detection circuit, Power Regulation potentiometer, external input power analog amount detection circuit, water pressure of cooling water detection electricity Road.

3. induction heating power DSP control device as described in claim 1, it is characterised in that: communication module turns with RS485 Serial port circuit, RS422 turn serial port circuit, display communicating circuit, external communication control circuit.

4. induction heating power DSP control device as described in claim 1, it is characterised in that: AD data processing module also has There is filter circuit.

5. induction heating power DSP control device as described in claim 1, it is characterised in that: alarm module have LED light and Loudspeaker.

6. induction heating power DSP control device as described in claim 1, it is characterised in that: pwm signal output module has Multi-channel PWM signal generator.

7. induction heating power DSP control device as described in claim 1, it is characterised in that: key module, which has to start, presses Key stops key, emergency stop key.

8. induction heating power DSP control device as described in claim 1, it is characterised in that: key module uses push button Key.

9. induction heating power DSP control device as described in claim 1, it is characterised in that: also have touch display, touching It touches display and main control chip is accessed by communication module.

10. induction heating power DSP control device as described in claim 1, it is characterised in that: main control chip uses DSP core Piece.