CN104296191B - Electromagnetic oven and its bearing calibration - Google Patents
Electromagnetic oven and its bearing calibration Download PDFInfo
- Publication number
- CN104296191B CN104296191B CN201310302836.2A CN201310302836A CN104296191B CN 104296191 B CN104296191 B CN 104296191B CN 201310302836 A CN201310302836 A CN 201310302836A CN 104296191 B CN104296191 B CN 104296191B
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- electromagnetic oven
- control module
- power
- signal
- module
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- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The present invention relates to a kind of electromagnetic oven and its bearing calibration, including control module（6）And and control module（6）The detection of power loss module of connection（5）, it is characterised in that：Detection of power loss module（5）Power-off signal is gathered in power down and passes to control module（6）, control module（6）According to power-off signal record, now control parameter is rated output parameter.The present invention need not use electromagnetic oven regulation power potentiometer or plug-in EEPROM device, reduce circuit board cost, improve reliability and stability.
Description
Technical field
The present invention relates to electromagnetic oven field, more particularly to a kind of electromagnetic oven for being easy to detection and its bearing calibration.
Background technology
Existing electromagnetic oven has current-voltage sampling circuit, and single-chip microcomputer controls electromagnetic stove defeated by sample rate current magnitude of voltage
Go out power.The circuit that current sample is typically all formed using current transformer or chaff manganese-copper filament sampling resistor.Producing in enormous quantities
In manufacturing process, because the difference of electronic component in itself causes the difference of sampling circuitry univers parameter, electromagnetism is finally influenceed
The difference of stove power output, some electromagnetic stove power in batch production are caused to meet to require.Due to first in hardware circuit
The inconsistency of device parameters, the power of different machines can be caused to have different degrees of error.
Typically there is two ways in the prior art to carry out capability correction, mode one：Current potential is used in current sampling circuit
Device alignment technique, the otherness of batch device is made up by artificially changing the resistance value of potentiometer, i.e., artificially adjust potentiometer
When, the power output of electromagnetic stove is also with change, so that hardware circuit parameter reaches unanimity；Mode two：Adjusted using keyboard
Electromagnetic stove power is corrected, then by eeprom chip plug-in the data Cun Chudao of regulation, realizes that power is consistent.
Patent No. " CN201020675384.4 ", a kind of entitled " the power quick regulation of induction cooker circuit board
The electromagnetic oven means for correcting that the utility model patent of device " discloses a kind of automatic detection and corrected automatically, use in the device
Manual adjustment potentiometer is replaced by the stepper motor that intelligent chip controls.
Artificial regulation potentiometer, complex process, electromagnetic stove power is corrected by worker's rotation screw knife during production, caused
Production cost is higher, while production efficiency also can be impacted；EEPROM regulations are coordinated using keyboard there is still a need for manual adjustment, behaviour
Make still complexity, manufacturing cost is higher, and external EEPROM has loss of data danger.Remember in patent " CN201020675384.4 "
Although the technical scheme of load realizes automatic correction, but cost is high.
The content of the invention
To solve the above problems, a kind of cost of present invention offer is low and is easy to the electromagnetic oven of correct operation and its correction simultaneously
Method.
To reach above-mentioned purpose, the technical scheme that electromagnetic oven of the present invention uses is：A kind of electromagnetic oven, including control module
And the detection of power loss module being connected with the control module, it is characterised in that：The detection of power loss module gathers in power down
Power-off signal simultaneously passes to the control module, and it is volume that the control module records now control parameter according to the power-off signal
Determine output parameter.
First preferred scheme is：Readable and writable memory is set in the control module, for storing the rated output parameter.
Using the preferred scheme, the readable and writable memory inside set make it that data are less easy to be lost.
Second preferred scheme is：The rated output parameter includes current signal, voltage signal, power signal, pulse tune
At least one of width signal processed.Using the preferred scheme so that control module is easier to determine the benchmark ginseng of each shelves of electromagnetic oven
Number.
3rd preferred scheme is：Calibration mark register is set in the control module, is for recording the control module
It is no to have received the power-off signal.Using the preferred scheme, it can avoid repeating to correct, save the operating time.
4th preferred scheme is：The detection of power loss module in the control module with being located at same chip.It is excellent using this
Scheme is selected, circuit production cost can be saved.
5th preferred scheme is：The control module is a microprocessor, and the power down module is the microprocessor peripheral hardware
Circuit.
The technical scheme that electromagnetic oven bearing calibration of the present invention uses for：A kind of electromagnetic oven bearing calibration, it is characterised in that bag
Include following steps：
（One）It is sequentially connected voltage-stabilized power supply, electrical parameters detection device and electromagnetic oven；
（Two）Start electrical parameters detection device, start electromagnetic stove, electromagnetic stove internal control module is by reading internal calibrations
Whether correction bit is just, to be that then control module exports according to rated output parameter, otherwise enter in flag register（Three）；
（Three）The power output of the control module control electromagnetic oven progressively strengthens, when electrical parameters detection device display parameters
For electromagnetic oven nominal parameter when, disconnect electromagnetic oven power supply, detection of power loss module collection power-off signal simultaneously passes to the control
Molding block, now control parameter is rated output parameter and sets correction bit as just the control module record.
First preferred scheme is：The display parameters include at least one of voltage, electric current, power.Using the preferred side
Case, it may be such that the display of electrical parameter in trimming process is more directly perceived.
Second preferred scheme is：Step（Three）Described in control module control electromagnetic oven power output with 20-50W/
500MS is stepped up.Using the preferred scheme so that trimming process is more efficient, correction result precision is higher.
3rd preferred scheme is：Switch is provided between the electrical parameters detection device and the electromagnetic oven, it is described for disconnecting
Electromagnetic oven power supply.
The technical advantages of the present invention are that：
1st, electromagnetic oven Power Regulation potentiometer or plug-in EEPROM device need not be used, reduces circuit board cost, is improved reliable
Property and stability.
2nd, adjustment power rating, production cost need not be reduced by any button adjustment power.
3rd, ensure electromagnetic oven output power in the range of the positive and negative 50W of rated value.
Brief description of the drawings
Fig. 1 is the electromagnetic oven of the embodiment of the present invention 1 and calibration equipment connection diagram.
Fig. 2 is the electromagnetic oven internal circuit blocks schematic diagram of the embodiment of the present invention 1.
Reference：1- voltage-stabilized power supplies, 2- electrical parameters detection devices, 3- switches, 4- electromagnetic ovens, 5- detection of power loss modules,
6- control modules, 7- output modules.
Embodiment
With reference to specific embodiments and the drawings, the present invention will be further described.
Embodiment 1.
With reference to figure 1,2, a kind of electromagnetic oven, including control module 6 and connected detection of power loss module 5 and output mould
Block 7, detection of power loss module 5 gather power-off signal in power down and pass to the control module 6, the basis of control module 6
Now control parameter is rated output parameter to the power-off signal record, and in the normal mode of operation, control module 6 is according to specified
Output parameter determines each gear output parameter of electromagnetic oven 4, and control module 6 controls output module 7 according to gear output parameter
Power output.Output module 7 includes magnet coil and its drive circuit, fan and its drive circuit etc..
Readable and writable memory is set in control module 6, for storing rated output parameter.Operation principle is as follows：In electromagnetic oven 4
Circuit board be provided be connected with control module 6 voltage signal acquisition circuit, current signal Acquisition Circuit and control export
The pulse width modulation circuit of the power output of module 7, the embedded software of control module 6 record the voltage signal collected during power down
Impulse modulation width signal that with current signal and now control module 6 exports etc., while write in readable and writable memory.
Rated output parameter is included at least one in current signal, voltage signal, power signal, impulse modulation width signal
Kind.Calibration mark register is set in control module 6, for recording whether control module 6 has received power-off signal.The calibration mark
Correction bit in register can be one or more, and correction bit is that genuine state can be that positive N or negative N, N are integer.
Detection of power loss module 5 in control module 6 with being located at same chip.Another alternative solution of this kind of technical scheme
For：Control module 6 is a microprocessor, and power down module 5 is microprocessor peripheral circuit.
A kind of electromagnetic oven bearing calibration based on above-mentioned electromagnetic oven, comprises the following steps：
（One）It is sequentially connected voltage-stabilized power supply 1, electrical parameters detection device 2, switch 3 and electromagnetic oven 4；Electrical parameters detection device 2
For determining current signal and voltage signal on circuit, and can be calculated according to the current signal and voltage signal collected
To current power output；Voltage-stabilized power supply 1 is connected with external communication voltage and exports 220V voltage stabilizing AC powers；
（Two）Closure switch 3, start electrical parameters detection device 2, start electromagnetic stove 4, the internal control module 6 of electromagnetic stove 4 is pressed
Export according to rated output parameter, otherwise enter（Three）；
（Three）Control module 6 controls the power output of electromagnetic oven 4 to be stepped up with 20-50W/500MS, works as electrical parameters detection
When the display parameters of device 2 are 4 nominal parameter of electromagnetic oven, switch 3 is disconnected, detection of power loss module 5 gathers power-off signal and passed to
Control module 6, control module 6 record now control parameter and are rated output parameter and set correction bit as just.
Display parameters include at least one of voltage, electric current, power.Voltage-stabilized power supply 1, also can be defeated in specific test environment
Go out the alternating voltages such as 110V, 180V, 340V.Rated output parameter includes but is not limited to current signal, voltage signal, power letter
Number, impulse modulation width signal etc..
Although the present invention is described in detail by above-mentioned embodiment, protection scope of the present invention is not limited to this,
All improvement based on invention thought of the present invention, all in the scope of the present invention.
Claims (9)
1. a kind of electromagnetic oven, including control module (6) and the detection of power loss module (5) that is connected with the control module (6), its
It is characterised by：The detection of power loss module (5) gathers power-off signal in power down and passes to the control module (6), described
It is rated output parameter that control module (6) records now control parameter according to the power-off signal, is set in the control module (6)
Calibration mark register, for recording whether the control module (6) has received the power-off signal.
2. electromagnetic oven according to claim 1, it is characterised in that：Readable and writable memory is set in the control module (6), is used
In the storage rated output parameter.
3. electromagnetic oven according to claim 1 or 2, it is characterised in that：The rated output parameter includes current signal, electricity
Press at least one of signal, power signal, impulse modulation width signal.
4. electromagnetic oven according to claim 1, it is characterised in that：The detection of power loss module (5) and the control module (6)
It is interior to be located at same chip.
5. electromagnetic oven according to claim 1, it is characterised in that：The control module (6) is a microprocessor, the power down
Detection module (5) is the microprocessor peripheral circuit.
6. a kind of electromagnetic oven bearing calibration, it is characterised in that comprise the following steps：
(1) voltage-stabilized power supply (1), electrical parameters detection device (2) and electromagnetic oven (4) are sequentially connected；
(2) start electrical parameters detection device (2), start electromagnetic oven (4), electromagnetic oven (4) internal control module (6) passes through reading
Whether correction bit is just, to be that then control module (6) exports according to rated output parameter, otherwise enter in internal calibrations flag register
Enter (three)；
(3) power output of control module (6) the control electromagnetic oven (4) progressively strengthens, when electrical parameters detection device (2) is aobvious
When to show parameter be electromagnetic oven (4) nominal parameter, electromagnetic oven (4) power supply is disconnected, detection of power loss module (5) collection power-off signal simultaneously passes
Pass the control module (6), control module (6) record now control parameter be rated output parameter and set correction bit as
Just.
7. electromagnetic oven bearing calibration according to claim 6, it is characterised in that：The display parameters include voltage, electric current, work(
At least one of rate.
8. electromagnetic oven bearing calibration according to claim 6, it is characterised in that：Control module described in step (3) (6) is controlled
The power output of electromagnetic oven (4) processed is stepped up with 20-50W/500MS.
9. electromagnetic oven bearing calibration according to claim 6, it is characterised in that：The electrical parameters detection device (2) with it is described
Switch (3) is provided between electromagnetic oven (4), for disconnecting the electromagnetic oven (4) power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310302836.2A CN104296191B (en) | 2013-07-18 | 2013-07-18 | Electromagnetic oven and its bearing calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310302836.2A CN104296191B (en) | 2013-07-18 | 2013-07-18 | Electromagnetic oven and its bearing calibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104296191A CN104296191A (en) | 2015-01-21 |
| CN104296191B true CN104296191B (en) | 2018-02-09 |
Family
ID=52316034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310302836.2A Active CN104296191B (en) | 2013-07-18 | 2013-07-18 | Electromagnetic oven and its bearing calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104296191B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695899B (en) * | 2017-10-24 | 2020-03-03 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating cooking utensil and heating power correction method and device thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201611780U (en) * | 2009-12-11 | 2010-10-20 | 深圳拓邦股份有限公司 | Automatic power correcting device and system |
| CN201708965U (en) * | 2010-04-07 | 2011-01-12 | 九阳股份有限公司 | Power calibrating circuit of electromagnetic oven |
| JP2012094458A (en) * | 2010-10-29 | 2012-05-17 | Daihen Corp | Electromagnetic induction heating cooker |
-
2013
- 2013-07-18 CN CN201310302836.2A patent/CN104296191B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201611780U (en) * | 2009-12-11 | 2010-10-20 | 深圳拓邦股份有限公司 | Automatic power correcting device and system |
| CN201708965U (en) * | 2010-04-07 | 2011-01-12 | 九阳股份有限公司 | Power calibrating circuit of electromagnetic oven |
| JP2012094458A (en) * | 2010-10-29 | 2012-05-17 | Daihen Corp | Electromagnetic induction heating cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104296191A (en) | 2015-01-21 |
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Address after: 250118 999 Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee after: Joyoung Company Limited Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: Joyoung Company Limited |