CN110418447A - The kind identification method and device of cookware for electromagnetic heating - Google Patents
The kind identification method and device of cookware for electromagnetic heating Download PDFInfo
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- CN110418447A CN110418447A CN201810386200.3A CN201810386200A CN110418447A CN 110418447 A CN110418447 A CN 110418447A CN 201810386200 A CN201810386200 A CN 201810386200A CN 110418447 A CN110418447 A CN 110418447A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- 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
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
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Abstract
The present invention provides the kind identification methods and device of a kind of cookware for electromagnetic heating, the type recognition methods includes: to obtain the period of the generated parallel resonance in turn off process of the IGBT in the electromagnetic heater during electromagnetic heater heats cookware；Judge whether the period of the parallel resonance is less than default harmonic period, if so, the cookware is identified as first kind cookware；And the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.The present invention can accurately identify the type of the cookware for electromagnetic heater, and then can choose different electromagnetic heating powers according to different cookware types.
Description
Technical field
The present invention relates to electromagnetic heating technique fields, and in particular to a kind of type identification side of the cookware for electromagnetic heating
Method and device.
Background technique
Product of the electromagnetic heater as modern kitchen revolution makes heat direct due to it is heated without open fire or conduction-type
In the characteristic that the bottom of a pan generates and the thermal efficiency is made to be greatly improved, become it is very popular with users it is a efficiently
Energy-efficient cooking apparatus, and being different from tradition completely has fire or the kitchen tools without fiery conduction heating, electromagnetic heater is to utilize electricity
Electrical cooking apparatus made of magnetic induction principle of heating is turned by high-frequency induction heating coil (i.e. magnet exciting coil), RF power
The part such as changing device, controller and ferromagnetic material the bottom of a pan cooker forms；And the working characteristics based on electromagnetic heater, also determine
The cookware of itself and different characteristics material is used cooperatively, and has a different operational effects；It is used on the market for user's selection
The cookware of electromagnetic heater heating it is many kinds of, and electromagnetic heater is in the heating process to different types of cookware
Circuit board working condition difference it is also very big, therefore, if can determine the type for the cookware being placed on electromagnetic heater
And unused heating power is used to different types, then it can guarantee the reliability of electromagnetic heater work.
Currently, generally using a certain fixed characteristic material or a group in the cookware identification design of electromagnetic heater
Other cookwares are then to pass through limit by benchmark of the cookware (such as 430 material cookwares) of similar characteristic material as cookware type
Power or interruption heating are determined to guarantee reliability.
But since aforesaid way can not differentiate the type of cookware, the heating work of electromagnetic heater can be made reliable
The low and safety in operation of property is poor, is also unable to satisfy the efficient requirement that user cooks electromagnetism.
Summary of the invention
For the problems of the prior art, the present invention provide a kind of cookware for electromagnetic heating kind identification method and
Device can accurately identify the type of the cookware for electromagnetic heater, and then can be chosen according to different cookware types
Different electromagnetic heating powers.
In order to solve the above technical problems, the present invention the following technical schemes are provided:
In a first aspect, the present invention provides a kind of kind identification method of cookware for electromagnetic heating, the type identification
Method includes:
During electromagnetic heater heats cookware, the IGBT obtained in the electromagnetic heater was being turned off
The period of generated parallel resonance in journey；
Judge whether the period of the parallel resonance is less than default harmonic period, if so, the cookware is identified as
A kind of cookware；
And the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.
Further, the kind identification method further include:
If the period of the parallel resonance is greater than or equal to the default harmonic period, the cookware is identified as second
Class cookware；
And the second class cookware is further divided into normal cookware or low-frequency and low-voltage cookware.
It is further, described that the first kind cookware is further divided into high frequency low voltage cookware or normal cookware, comprising:
During electromagnetic heater heats the first kind cookware, the IGBT in electromagnetic heater is obtained
The first over-voltage number within the unit time；
The first over-voltage number is judged whether less than the first preset overpressure time numerical value, if so, by the first kind pot
Tool is further identified as high-frequency and high-voltage cookware；
Otherwise, the first kind cookware is further identified as normal cookware.
It is further, described that the second class cookware is further divided into normal cookware or low-frequency and low-voltage cookware, comprising:
During electromagnetic heater carries out electromagnetic heating to the second class cookware, obtain in electromagnetic heater
Second over-voltage number of the IGBT within the unit time；
Judge whether the second over-voltage number is greater than the second preset overpressure time numerical value, if so, by the second class pot
Tool is further identified as low-frequency high-voltage cookware；
Otherwise, the second class cookware is further identified as the normal cookware.
Further, the generated parallel resonance in turn off process of the IGBT in described acquisition electromagnetic heater
Period before, the kind identification method further include:
During electromagnetic heater heats target cookware, the umber of pulse that corresponding IGBT is returned is received；
Whether the umber of pulse for judging that the IGBT is returned is less than predetermined pulse number threshold value, if so, by the target cookware
It is determined as and the matched cookware of the electromagnetic heater.
Further, the type of the cookware includes high-frequency and high-voltage cookware, low-frequency high-voltage cookware and normal cookware, the class
Type recognition methods further include:
It before the period of generated parallel resonance, is respectively set simultaneously in turn off process in the corresponding IGBT of the acquisition
Store the predetermined of the predetermined heat power of the high-frequency and high-voltage cookware, the predetermined heat power of low-frequency high-voltage cookware and normal cookware
Heating power；
And after determining the type of cookware, according to the type identification of cookware as a result, obtaining corresponding predetermined heat function
Rate, and the electromagnetic heating power of the cookware according to the predetermined heat power setting corresponding types.
Second aspect, the present invention also provides a kind of type identification device of cookware for electromagnetic heating, the type is known
Other device includes:
The period of parallel resonance obtains module, should for obtaining during electromagnetic heater heats cookware
The period of IGBT generated parallel resonance in turn off process in electromagnetic heater；
First kind cookware identification module, for judging whether the period of the parallel resonance is less than default harmonic period, if
It is that the cookware is then identified as first kind cookware；
High frequency low voltage cookware or normal cookware identification module are low for the first kind cookware to be further divided into high frequency
Press cookware or normal cookware.
Further, the type identification device further include:
Second class cookware identification module is greater than or equal to the default harmonic period for the period in the parallel resonance
When, the cookware is identified as the second class cookware；
Normal cookware or low-frequency and low-voltage cookware identification module, for the second class cookware to be further divided into normal pot
Tool or low-frequency and low-voltage cookware.
Further, the high frequency low voltage cookware or normal cookware identification module include:
First over-voltage number acquiring unit, the phase for being heated in electromagnetic heater to the first kind cookware
Between, obtain first over-voltage number of the IGBT in electromagnetic heater within the unit time；
High-frequency and high-voltage cookware recognition unit, for judging the first over-voltage number whether less than the first preset overpressure number
Value, if so, the first kind cookware is further identified as high-frequency and high-voltage cookware；
First normal cookware otherwise recognition unit, for being greater than or equal to the first preset overpressure in the first over-voltage number
The first kind cookware is further identified as normal cookware by secondary numerical value.
Further, the normal cookware or low-frequency and low-voltage cookware identification module include:
Second over-voltage number acquiring unit, for carrying out electromagnetic heating to the second class cookware in electromagnetic heater
Period obtains second over-voltage number of the IGBT in electromagnetic heater within the unit time；
Low-frequency high-voltage cookware recognition unit, for judging whether the second over-voltage number is greater than the second preset overpressure number
Value, if so, the second class cookware is further identified as low-frequency high-voltage cookware；
First normal cookware otherwise recognition unit, for being less than or equal to the second preset overpressure in the second over-voltage number
The second class cookware is further identified as the normal cookware by secondary numerical value.The third aspect, the present invention provide a kind of electronics and set
It is standby, including memory, processor and store the computer program that can be run on a memory and on a processor, the processor
The step of realizing the kind identification method for the cookware of electromagnetic heating when executing described program.
Fourth aspect, the present invention provide a kind of computer readable storage medium, are stored thereon with computer program, the calculating
The step of kind identification method for the cookware of electromagnetic heating is realized when machine program is executed by processor.
5th aspect, the present invention provide a kind of electromagnetic heater, are equipped in the electromagnetic heater described for electricity
The type identification device of the cookware of magnetic heating.
As shown from the above technical solution, provided by the present invention for the kind identification method of the cookware of electromagnetic heating, pass through
During electromagnetic heater heats cookware, the IGBT obtained in the electromagnetic heater is produced in turn off process
The period of raw parallel resonance；Judge whether the period of the parallel resonance is less than default harmonic period, if so, by the pot
Tool is identified as first kind cookware；And the first kind cookware is further divided into high frequency low voltage cookware or normal cookware, energy
The type of the cookware for electromagnetic heater is enough accurately identified, and then different electricity can be chosen according to different cookware types
Magnetic heating power effectively improves the heating work reliability and safety in operation of electromagnetic heater, meets user to electricity
Efficient, the intelligent and safe requirement of magnetic culinary art, improves user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the first specific reality of the kind identification method of the cookware for electromagnetic heating in the embodiment of the present invention one
Apply the flow diagram of mode；
Fig. 2 is the waveform diagram of the IGBT of the invention cycle T of generated parallel resonance in turn off process；
Fig. 3 is that second of the kind identification method of the cookware for electromagnetic heating in the embodiment of the present invention one is specific real
Apply the flow diagram of mode；
Fig. 4 be in the kind identification method of the cookware for electromagnetic heating of the invention step 401 to the process of step 404
Schematic diagram；
Fig. 5 be in the kind identification method of the cookware for electromagnetic heating of the invention step 601 to the process of step 604
Schematic diagram；
Fig. 6 is the process of step A01 to step A03 in the kind identification method of the cookware for electromagnetic heating of the invention
Schematic diagram；
Fig. 7 is the flow diagram of the application example of the kind identification method of the cookware for electromagnetic heating of the invention；
Fig. 8 is the structural schematic diagram of the type identification device of the cookware for electromagnetic heating in the embodiment of the present invention two；
Fig. 9 is the structural schematic diagram of the electronic equipment in the embodiment of the present invention three.
Figure 10 is the structural schematic diagram of the electromagnetic heater in the embodiment of the present invention five.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
For the problems of the prior art, the present invention provide a kind of cookware for electromagnetic heating kind identification method and
Device, electromagnetic heater.It is understood that the type identification described in the embodiment of the present invention for the cookware of electromagnetic heating
Method is used to carry out type identification to the cookware of the various materials for electromagnetic heating, and is matched with not to the cookware of unlike material
Same heating power.Heating equipment therein especially electromagnetic oven or electromagnetic stove, are also applied for cookware and electromagnetic heating apparatus collection
At setting in whole an intracorporal electromagnetic cooking appliance, such as electromagnetic heating electric cooker etc., in whole electromagnetic cooking appliance,
Cookware refers to the liner of electromagnetic cooking appliance, such as the liner in electromagnetic heating electric cooker.Provided by the present invention for electromagnetism plus
The kind identification method of the cookware of heat, by obtaining the electromagnetic heating during electromagnetic heater heats cookware
The period of IGBT generated parallel resonance in turn off process in device；Judge whether the period of the parallel resonance is less than
Default harmonic period, if so, the cookware is identified as first kind cookware；And the first kind cookware is further drawn
It is divided into high frequency low voltage cookware or normal cookware；The type of the cookware for electromagnetic heater can be accurately identified, and then can
Different electromagnetic heating powers is chosen according to different cookware types, the heating work for effectively improving electromagnetic heater is reliable
Property and safety in operation, meet efficient, the intelligent and safe requirement that user cooks electromagnetism, so that user experience mentions
It is high.Explanation will be explained in detail to the present invention by the first to the 5th embodiment below.
The embodiment of the present invention one provides a kind of specific embodiment party of the kind identification method of cookware for electromagnetic heating
Formula, referring to Fig. 1, the kind identification method of the cookware for electromagnetic heating specifically includes following content:
Step 100: during electromagnetic heater heats cookware, obtaining the IGBT in the electromagnetic heater
The period of generated parallel resonance in turn off process.
In step 100, it is used in electromagnetic heater for the type identification device of the cookware of electromagnetic heating to cookware
During carrying out electromagnetic heating, corresponding insulated gate bipolar transistor IGBT (Insulated Gate Bipolar is obtained
Transistor) in turn off process generated parallel resonance cycle T.It is understood that electromagnetic heater can
Premise to cookware progress electromagnetic heating is the cookware and the electromagnetic heater is to be mutually matched, i.e., the cookware is placed on institute
After stating on electromagnetic heater, which can start heating schedule and carry out electromagnetic heating to it, for example,
The frying pan and electromagnetic heater at convex surface bottom mismatch, and flat frying pan is matched with electromagnetic heater.
It is understood that the cycle T of IGBT generated parallel resonance in turn off process is as shown in Fig. 2, in parallel humorous
The cycle T of vibration is the time interval of the parallel resonance generated in the turn off process of each IGBT, that is to say, that electromagnetic heating
The resonance of device occurs during IGBT shutdown, and when IGBT shutdown, damped harmonic oscillation in parallel occurs for LC (drum L, capacitor C), directly
IGBT open signal can be just generated again to synchronization signal overturning is generated, and the cycle T of the parallel resonance during this is only joined with resonance
Number (drum L, capacitor C) and the matched cookware of institute are related, are influenced very little by power and voltage.So in resonant parameter (line
Disk L, capacitor C) determine after, there are good corresponding relationships with cookware for value, the characteristic of cookware can be objectively responded, therefore,
Using the cycle T of parallel resonance as one important judgement factor of this determining program.
Step 200: judging whether the period of the parallel resonance is less than default harmonic period, if so, by the cookware
It is identified as first kind cookware, if so, thening follow the steps 300.
Step 300: the cookware is identified as first kind cookware.
In step 200 and 300, the type identification device of the cookware for electromagnetic heating judges the week of the parallel resonance
Whether phase T is less than default harmonic period Tset, it is to be understood that the type identification device of the cookware for electromagnetic heating judges
Whether the cycle T of the parallel resonance is less than default harmonic period Tset, default harmonic period T thereinsetAccording to test of many times
As a result it obtains, the default harmonic period TsetFor distinguishing first kind cookware and other cookwares, and default harmonic period TsetValue
It is arranged according to different drums, resonant capacitance test acquired results, in a kind of concrete example, the resonance of normal 430 cookware
Period is 0x340, and the harmonic period of high frequency cookware is 0x280, therefore TsetValue can be set to 0x295.
Step 400: the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.
In step 400, for the type identification device of the cookware of electromagnetic heating can by it is preset another second
Default harmonic period, is further divided into high frequency low voltage cookware or normal cookware for the first kind cookware again, can also electricity
Over-voltage number of the IGBT within the unit time in magnetic heating device comes to high frequency low voltage cookware in first kind cookware or normal
Cookware is divided, and the corresponding specific embodiment of Fig. 4 is specifically detailed in.
As can be seen from the above description, the type identification side provided by the embodiment of the present invention for the cookware of electromagnetic heating
Method, the type that can accurately identify the cookware for electromagnetic heater is high frequency low voltage cookware or normal cookware, Jin Erneng
It is enough that different electromagnetic heating powers is selected according to different cookware types.
In a specific embodiment, referring to Fig. 3, in above-mentioned steps 200, if the period of the parallel resonance is greater than
Or it is equal to the default harmonic period, 500 and 600 are thened follow the steps, particular content is as follows:
Step 500: the cookware is identified as the second class cookware.
In step 500, the cycle T for judging the parallel resonance for the type identification device of the cookware of electromagnetic heating is
It is no to be less than default harmonic period Tset, if it is not, the cookware is then identified as the second class cookware, the default harmonic period TsetFor
Distinguish first kind cookware and the second class cookware.
It is understood that the predetermined heat power minimum minP of the first kind cookware G1G1Less than second class
The predetermined heat power minimum minP of cookware G2G2, learnt after many experiments, if the cycle T of the parallel resonance is less than in advance
If harmonic period Tset, then current cookware is high frequency cookware or normal cookware, if the cycle T of the parallel resonance is greater than in advance
If harmonic period Tset, then current cookware is low frequency cookware or normal cookware.That is, the cycle T for passing through parallel resonance
Judgement, can tentatively conclude current cookware type be first kind cookware G1 high frequency cookware or normal cookware or second
The low frequency cookware or normal cookware of class cookware G2；And it is transferred in advance after judgement for first kind cookware G1 or the second class cookware G2
The predetermined heat power of setting heats it.
Step 600: the second class cookware is further divided into normal cookware or low-frequency and low-voltage cookware.
In step 600, the type identification device of the cookware for electromagnetic heating can pass through another preset third
Default harmonic period, is further divided into high frequency low voltage cookware or normal cookware for the second class cookware again, can also electricity
Over-voltage number of the IGBT within the unit time in magnetic heating device comes to low-frequency and low-voltage cookware in the second class cookware or normal
Cookware is divided, and the corresponding specific embodiment of Fig. 5 is specifically detailed in.
As can be seen from the above description, the type identification side provided by the embodiment of the present invention for the cookware of electromagnetic heating
Method can accurately identify the type of the cookware for electromagnetic heater, and then can be provided not according to different cookware types
Same electromagnetic heating power.
After preliminary judgement cookware is first kind cookware G1 or the second class cookware G2 in above-mentioned steps 300 and step 500, this
The kind identification method also step 400 and step 600 of the cookware for electromagnetic heating of invention are also to first kind cookware G1 or the
Two class cookware G2 carry out further type identification, to improve the accuracy of type identification, two kinds of situations further identified
It is as follows:
For first kind cookware G1: referring to fig. 4, the step 400 specifically includes following content:
Step 401: during electromagnetic heater heats the first kind cookware, obtaining electromagnetic heater
In first over-voltage number of the IGBT within the unit time.
In step 401, for the type identification device of the cookware of electromagnetic heating to being identified as the first kind pot
During the cookware progress electromagnetic heating for having G1, first over-voltage times N of the corresponding IGBT within the unit time is obtainedG1.It can be with
Understand, in order to limit the crest voltage of IGBT, hardware circuit is arranged reference voltage and carries out crest voltage limitation, when IGBT collection
Electrode voltage reaches reference point, trigger comparator overturning, and next period IGBT opens period reduction fixation and opens width.Record
Position the time in comparator overturn number, can reflect cookware characteristic, though severe cookware can all generate at the lower voltage compared with
Strong over-voltage number, normal cookware over-voltage number are much smaller than the over-voltage number of severe cookware.
Step 402: judgement know the first over-voltage number whether less than the first preset overpressure time numerical value, if so, into
Enter step 403；Otherwise, 404 are entered step.
In step 402, the first preset overpressure time numerical value of N1It is obtained according to test of many times result, first preset overpressure
Numerical value of N1For distinguishing high-frequency and high-voltage cookware and normal cookware, and the first preset overpressure time numerical value of N1Value can be according to different
Drum, resonant capacitance test acquired results are configured, and in a kind of concrete example, the over-voltage time numerical value of normal 430 cookware is
The over-voltage time numerical value of 0x0C, high pressure cookware are 0x20, therefore, can be by the first preset overpressure time numerical value of N1It is set as 0x1A.
In step 402, judge the first over-voltage times NG1Whether less than the first preset overpressure time numerical value of N1。
Step 403: the first kind cookware is further identified as high-frequency and high-voltage cookware.
Step 404: the first kind cookware is further identified as normal cookware.
It is understood that the predetermined heat power minP of the high-frequency and high-voltage cookwareG1It is pre- less than the normal cookware
Determine heating power [minPG2,maxP1], in specific practical application, minPG1Value can be 800W, minPG2Value can be with
For 1000W, maxP1Value can be 2100W.
For the second class cookware G2: referring to Fig. 5, the step 600 specifically includes following content:
Step 601: during electromagnetic heater carries out electromagnetic heating to the second class cookware, obtaining electromagnetic heating
Second over-voltage number of the IGBT within the unit time in device.
In step 601, for the type identification device of the cookware of electromagnetic heating to being identified as the second class pot
During the cookware progress electromagnetic heating for having G2, second over-voltage times N of the corresponding IGBT within the unit time is obtainedG2。
Step 602: judgement knows whether the second over-voltage number is greater than the second preset overpressure time numerical value, if so, into
Enter step 603；Otherwise, 604 are entered step.
In step 602, the second preset overpressure time numerical value of N2It is obtained according to test of many times result, second preset overpressure
Numerical value of N2For distinguishing low-frequency high-voltage cookware and normal cookware, and second preset overpressure time numerical value of N2It is pre- greater than described first
If over-voltage time numerical value of N1, the second preset overpressure time numerical value of N2Value can be according to different drums, resonant capacitance test gained, mesh
Be normally need the cookware heated not to be judged to poor pot limitation power, in a kind of concrete example, 430 cookwares it is anti-
Pressure is counted as 0x0C, the second preset overpressure time numerical value of N2It generally can be set to 120%~130%, i.e. 0x0F~0x11.
In step 602, judge the second over-voltage times NG2Whether second preset overpressure time numerical value of N is greater than2。
Step 603: the second class cookware is further identified as low-frequency high-voltage cookware.
Step 604: the second class cookware is further identified as normal cookware.
It is understood that the predetermined heat power P of the low-frequency high-voltage cookware2It is pre- greater than the high-frequency and high-voltage cookware
Determine heating power minPG1, and the predetermined heat power P of the low-frequency high-voltage cookware2Greater than the predetermined heat of the normal cookware
Power minimum minPG2, and it is less than the predetermined heat power maximum value maxP of the normal cookware1, in specific practical application
In, P2Value can be 1200W.
Above-mentioned cookware type and corresponding predetermined heat power are as shown in table 1:
Table 1
As can be seen from the above description, the type identification side provided by the embodiment of the present invention for the cookware of electromagnetic heating
Method, further identification is used for the type of the cookware of electromagnetic heater, so that the work of electromagnetic heater is relatively reliable and quasi-
Really.
In a specific embodiment, referring to Fig. 6, the kind identification method of the cookware for electromagnetic heating of the invention
Before middle step 100, it can also include step A01 to A03, specifically include following content:
Step A01: during electromagnetic heater heats target cookware, the arteries and veins that corresponding IGBT is returned is received
Rush number.
Step A02: whether the umber of pulse for judging that the IGBT is returned is less than predetermined pulse number threshold value, if so, entering step
Otherwise rapid A03 enters step A04.
In step A02, the type identification device of the cookware for electromagnetic heating judges the umber of pulse M that the IGBT is returned
Whether predetermined pulse number threshold value M is less than1, wherein as described in the type identification device judgement of the cookware for electromagnetic heating
Whether the umber of pulse M that IGBT is returned is less than predetermined pulse number threshold value M1Specially pot program is examined in pulse, and generally under normal circumstances
Having pot pulse return value is 0X03~0x05, is 0X0B~0X0F, therefore, the predetermined pulse number threshold value M in the case of no pot1's
Value can be median 0x06~0x7.
Step A03: the target cookware is determined as and the matched cookware of the electromagnetic heater.
Step A04: it is judged to the target cookware that can not identify cookware, and issues corresponding prompt.For example, determining institute
State target cookware be can not identify cookware after, issue casting content be " current cookware can not be applied on electromagnetic heater " or
The speech prompt information of person's " current cookware can not identify, it is proposed that attempt general heating mode and heat to it " etc..
As can be seen from the above description, the type identification side provided by the embodiment of the present invention for the cookware of electromagnetic heating
Method further improves the reliability of the type identification of the cookware for electromagnetic heater and comprehensive, and effectively increases
User experience.
It in a specific embodiment, can first root before carrying out type identification to the cookware for electromagnetic heating
Preliminary classification is carried out to cookware on the market according to the experimental result of test of many times, specifically includes following content:
It is corresponding according to all kinds of test cookwares during carrying out electromagnetic heating respectively to a plurality of types of test cookwares
The test of many times of over-voltage number of the period and IGBT of parallel resonance of the IGBT in turn off process within the unit time will be as a result, will
The Type division of cookware is high-frequency and high-voltage cookware, low-frequency high-voltage cookware and normal cookware.
Before step 100, the method also includes: it is respectively set and stores the predetermined heat of the high-frequency and high-voltage cookware
The predetermined heat power of power, the predetermined heat power of low-frequency high-voltage cookware and normal cookware.
And after step 400 or step 600, the method also includes: according to the type identification of cookware as a result,
Obtain corresponding predetermined heat power, and the electromagnetic heating function of the cookware according to the predetermined heat power setting corresponding types
Rate.
It is understood that the predetermined heat function of the predetermined heat power of the high-frequency and high-voltage cookware, the normal cookware
The value of the predetermined heat power of the lower limit value of rate range and the low-frequency high-voltage cookware is incremented by successively, and respectively less than described first is pre-
Determine the upper limit value of heating power range.
For example, the period of the parallel resonance according to the corresponding IGBT of all kinds of test cookwares in turn off process and IGBT are in list
The test of many times of over-voltage number in the time of position is as a result, be divided into four seed types for cookware on the market, referring to table 2:
It (1) can not cookware
(2) normal heating cookware
(3) the severe cookware of low frequency-correspondence low-frequency high-voltage cookware
(4) the severe cookware of high frequency-correspondence high-frequency and high-voltage cookware
Table 2
| Cookware type | Include cookware on the market |
| Normal heating cookware | Answer single bottom/f complex in bottom/304 etc. in 430 single bottom/430 |
| The severe cookware of low frequency | Honeycomb bottom/big object/part frying pan |
| The severe cookware of high frequency | 304 composite bottom boiler tools/class J4 cookware |
As can be seen from the above description, the type identification side provided by the embodiment of the present invention for the cookware of electromagnetic heating
Method can accurately identify the type of the cookware for electromagnetic heater, and can be provided according to different cookware types different
Electromagnetic heating power, effectively improve the heating work reliability and safety in operation of electromagnetic heater, meet user
Efficient, intelligent and safe requirement to electromagnetism culinary art, improves user experience.
For further instruction this programme, the present invention also provides a kind of kind identification methods of cookware for electromagnetic heating
Application example specifically include following content referring to Fig. 7:
S1: open detection cookware program, detection return to umber of pulse M.
S2: judge whether umber of pulse M is less than predetermined pulse number threshold value M1；If then entering step S3, otherwise enter step
S4。
S3: the target cookware is determined as cookware, enters step S5.
S4: it is judged to the target cookware that can not identify cookware, and issues corresponding prompt, terminate current identification
Journey.
S5: during electromagnetic heater heats cookware, the IGBT obtained in the electromagnetic heater is being closed
The period of parallel resonance caused by during disconnected.
S6: judging whether the period of the parallel resonance is less than default harmonic period, if so, executing S7, otherwise executes
S8。
S7: the cookware is identified as first kind cookware, enters step S9.
S8: the cookware is identified as the second class cookware, S13.
S9: it during electromagnetic heater heats the first kind cookware, obtains in electromagnetic heater
First over-voltage number of the IGBT within the unit time.
S10: judgement know the first over-voltage number whether less than the first preset overpressure time numerical value, if so, into
S11；Otherwise, into S12.
S11: the first kind cookware is further identified as high-frequency and high-voltage cookware, and predetermined heat performance number is 800W.
S12: being further identified as normal cookware for the first kind cookware, and predetermined heat performance number be [1000W,
2100W]。
S13: during electromagnetic heater carries out electromagnetic heating to the second class cookware, electromagnetic heater is obtained
In second over-voltage number of the IGBT within the unit time.
S14: judgement knows whether the second over-voltage number is greater than the second preset overpressure time numerical value, if so, into
S15；Otherwise, into S16.
S15: the second class cookware is further identified as low-frequency high-voltage cookware, and predetermined heat performance number is 1200W.
S16: being further identified as normal cookware for the second class cookware, and predetermined heat performance number be [1000W,
2100W]。
As can be seen from the above description, the type identification side provided by application example of the invention for the cookware of electromagnetic heating
Method can accurately identify the type of the cookware for electromagnetic heater, and can be provided according to different cookware types different
Electromagnetic heating power, effectively improve the heating work reliability and safety in operation of electromagnetic heater, meet user
Efficient, intelligent and safe requirement to electromagnetism culinary art, improves user experience.
The embodiment of the present invention two provides a kind of kind identification method for realizing the cookware for electromagnetic heating
The specific embodiment of the type identification device of the cookware for electromagnetic heating of middle full content, it is described for electricity referring to Fig. 8
The type identification device of the cookware of magnetic heating specifically includes following content:
The period of parallel resonance obtains module 10, for obtaining during electromagnetic heater heats cookware
The period of IGBT generated parallel resonance in turn off process in the electromagnetic heater；
First kind cookware identification module 20, for judging whether the period of the parallel resonance is less than default harmonic period,
If so, the cookware is identified as first kind cookware；
High frequency low voltage cookware or normal cookware identification module 30, for the first kind cookware to be further divided into high frequency
Low pressure cookware or normal cookware.
In the high frequency low voltage cookware or normal cookware identification module 30, specifically include:
First over-voltage number acquiring unit, the phase for being heated in electromagnetic heater to the first kind cookware
Between, obtain first over-voltage number of the IGBT in electromagnetic heater within the unit time；
High-frequency and high-voltage cookware recognition unit, for judging the first over-voltage number whether less than the first preset overpressure number
Value, if so, the first kind cookware is further identified as high-frequency and high-voltage cookware；
First normal cookware otherwise recognition unit, for being greater than or equal to the first preset overpressure in the first over-voltage number
The first kind cookware is further identified as normal cookware by secondary numerical value.
In a specific embodiment, the type identification device further include:
Second class cookware identification module is greater than or equal to the default harmonic period for the period in the parallel resonance
When, the cookware is identified as the second class cookware；
Normal cookware or low-frequency and low-voltage cookware identification module, for the second class cookware to be further divided into normal pot
Tool or low-frequency and low-voltage cookware.
In the normal cookware or low-frequency and low-voltage cookware identification module, specifically include:
Second over-voltage number acquiring unit, for carrying out electromagnetic heating to the second class cookware in electromagnetic heater
Period obtains second over-voltage number of the IGBT in electromagnetic heater within the unit time；
Low-frequency high-voltage cookware recognition unit, for judging whether the second over-voltage number is greater than the second preset overpressure number
Value, if so, the second class cookware is further identified as low-frequency high-voltage cookware；
First normal cookware otherwise recognition unit, for being less than or equal to the second preset overpressure in the second over-voltage number
The second class cookware is further identified as the normal cookware by secondary numerical value.
It specifically can be used for executing provided by the present invention for the embodiment of the identification system of the cookware of electromagnetic heating
The process flow of the embodiment of the kind identification method of the above-mentioned cookware for electromagnetic heating, details are not described herein for function, can
With the detailed description referring to above method embodiment.As can be seen from the above description, being used for electromagnetism provided by the embodiment of the present invention
The type identification device of the cookware of heating can accurately identify the type of the cookware for electromagnetic heater, and being capable of basis
Different cookware types provide different electromagnetic heating powers, effectively improve electromagnetic heater heating work reliability and
Safety in operation meets efficient, the intelligent and safe requirement that user cooks electromagnetism, improves user experience.
The embodiment of the present invention three provides complete in the kind identification method that can be realized the above-mentioned cookware for electromagnetic heating
The specific embodiment of a kind of electronic equipment of portion's step, referring to Fig. 9, the electronic equipment specifically includes following content:
Processor (processor) 601, memory (memory) 602, communication interface (Communications
Interface) 603 and bus 604；
Wherein, the processor 601, memory 602, communication interface 603 complete mutual lead to by the bus 604
Letter；The communication interface 603 is transmitted for realizing the information between the relevant devices such as IGBT and electromagnetic heater；
The processor 601 is used to call the computer program in the memory 602, and the processor executes the meter
The Overall Steps in above-described embodiment one are realized when calculation machine program, for example, reality when the processor executes the computer program
Existing following step:
Step 100: during electromagnetic heater heats cookware, obtaining the IGBT in the electromagnetic heater
The period of generated parallel resonance in turn off process.
Step 200: judging whether the period of the parallel resonance is less than default harmonic period, if so, by the cookware
It is identified as first kind cookware, if so, thening follow the steps 300.
Step 300: the cookware is identified as first kind cookware.
Step 400: the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.
As can be seen from the above description, electronic equipment provided by the embodiment of the present invention, can accurately identify and add for electromagnetism
The type of the cookware of thermal, and different electromagnetic heating powers can be provided according to different cookware types, it effectively improves
The heating work reliability and safety in operation of electromagnetic heater meet efficient, intelligence and peace that user cooks electromagnetism
Full requirement, improves user experience.
The embodiment of the present invention four provides complete in the kind identification method that can be realized the above-mentioned cookware for electromagnetic heating
A kind of computer readable storage medium of portion's step is stored with computer program on the computer readable storage medium, the meter
Calculation machine program realizes the Overall Steps of above-described embodiment one when being executed by processor, for example, the processor executes the calculating
Following step is realized when machine program:
Step 100: during electromagnetic heater heats cookware, obtaining the IGBT in the electromagnetic heater
The period of generated parallel resonance in turn off process.
Step 200: judging whether the period of the parallel resonance is less than default harmonic period, if so, by the cookware
It is identified as first kind cookware, if so, thening follow the steps 300.
Step 300: the cookware is identified as first kind cookware.
Step 400: the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.
As can be seen from the above description, computer readable storage medium provided by the embodiment of the present invention, can accurately identify
The type of cookware for electromagnetic heater, and different electromagnetic heating powers can be provided according to different cookware types,
The heating work reliability and safety in operation for effectively improving electromagnetic heater, meet the height that user cooks electromagnetism
Effect, intelligent and safe requirement, improve user experience.
The embodiment of the present invention five provides a kind of specific embodiment of electromagnetic heater, the electromagnetic heater tool
Body includes following content:
The type identification device of the cookware for electromagnetic heating is equipped in the electromagnetic heater；This is used for electromagnetism
The type identification device 1 of the cookware of heating can be set from anywhere in electromagnetic heater, and described for electromagnetic heating
The type identification device 1 of cookware connect with the IGBT in electromagnetic heater.It is understood that the electromagnetic heater
A whole intracorporal electromagnetism culinary art can be integrally disposed in for electromagnetic oven 2, electromagnetic stove or suitable for cookware and electromagnetic heating apparatus
Utensil, such as electromagnetic heating electric cooker etc., referring to Figure 10, the present embodiment is by taking electromagnetic heater is electromagnetic oven as an example, for electricity
The setting of type identification device 1 of the cookware of magnetic heating is connect on the electromagnetic oven 2, and with the IGBT in electromagnetic oven.
As can be seen from the above description, the provided electromagnetic heater of the embodiment of the present invention, can accurately identify for electromagnetism
The type of the cookware of heating device, and different electromagnetic heating powers can be provided according to different cookware types, effectively mention
The heating work reliability and safety in operation of high electromagnetic heater, meet user to electromagnetism cook it is efficient, intelligence and
The requirement of safety, improves user experience.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, it may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection, be also possible to be electrically connected
It connects；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (13)
1. a kind of kind identification method of the cookware for electromagnetic heating, which is characterized in that the kind identification method includes:
During electromagnetic heater heats cookware, the IGBT in the electromagnetic heater is obtained in turn off process
The period of generated parallel resonance；
Judge whether the period of the parallel resonance is less than default harmonic period, if so, the cookware is identified as the first kind
Cookware；
And the first kind cookware is further divided into high frequency low voltage cookware or normal cookware.
2. kind identification method according to claim 1, which is characterized in that the kind identification method further include:
If the period of the parallel resonance is greater than or equal to the default harmonic period, the cookware is identified as the second class pot
Tool；
And the second class cookware is further divided into normal cookware or low-frequency and low-voltage cookware.
3. kind identification method according to claim 1, which is characterized in that described further to draw the first kind cookware
It is divided into high frequency low voltage cookware or normal cookware, comprising:
During electromagnetic heater heats the first kind cookware, the IGBT in electromagnetic heater is obtained in list
The first over-voltage number in the time of position；
Judge the first over-voltage number whether less than the first preset overpressure time numerical value, if so, by the first kind cookware into
One step is identified as high-frequency and high-voltage cookware；
Otherwise, the first kind cookware is further identified as normal cookware.
4. kind identification method according to claim 2, which is characterized in that described further to draw the second class cookware
It is divided into normal cookware or low-frequency and low-voltage cookware, comprising:
During electromagnetic heater carries out electromagnetic heating to the second class cookware, the IGBT in electromagnetic heater is obtained
The second over-voltage number within the unit time；
Judge whether the second over-voltage number is greater than the second preset overpressure time numerical value, if so, by the second class cookware into
One step is identified as low-frequency high-voltage cookware；
Otherwise, the second class cookware is further identified as the normal cookware.
5. kind identification method described in any one of -4 according to claim 1, which is characterized in that add in described acquisition electromagnetism
IGBT in thermal is in turn off process before the period of generated parallel resonance, the kind identification method further include:
During electromagnetic heater heats target cookware, the umber of pulse that corresponding IGBT is returned is received；
Whether the umber of pulse for judging that the IGBT is returned is less than predetermined pulse number threshold value, if so, the target cookware is determined
For with the matched cookware of the electromagnetic heater.
6. kind identification method described in any one of -4 according to claim 1, which is characterized in that the type of the cookware includes
High-frequency and high-voltage cookware, low-frequency high-voltage cookware and normal cookware, the kind identification method further include:
It before the period of generated parallel resonance, is respectively set and stores in turn off process in the corresponding IGBT of the acquisition
The predetermined heat of the predetermined heat power of the high-frequency and high-voltage cookware, the predetermined heat power of low-frequency high-voltage cookware and normal cookware
Power；
And after determining the type of cookware, according to the type identification of cookware as a result, obtaining corresponding predetermined heat power,
And the electromagnetic heating power of the cookware according to the predetermined heat power setting corresponding types.
7. a kind of type identification device of the cookware for electromagnetic heating, which is characterized in that the type identification device includes:
The period of parallel resonance obtains module, for obtaining the electromagnetism during electromagnetic heater heats cookware
The period of IGBT generated parallel resonance in turn off process in heating device；
First kind cookware identification module, for judging whether the period of the parallel resonance is less than default harmonic period, if so,
The cookware is identified as first kind cookware；
High frequency low voltage cookware or normal cookware identification module, for the first kind cookware to be further divided into high frequency low voltage pot
Tool or normal cookware.
8. type identification device according to claim 7, which is characterized in that the type identification device further include:
Second class cookware identification module, when being greater than or equal to the default harmonic period for the period in the parallel resonance,
The cookware is identified as the second class cookware；
Normal cookware or low-frequency and low-voltage cookware identification module, for by the second class cookware be further divided into normal cookware or
Low-frequency and low-voltage cookware.
9. type identification device according to claim 7, which is characterized in that the high frequency low voltage cookware or normal cookware are known
Other module includes:
First over-voltage number acquiring unit, for obtaining during electromagnetic heater heats the first kind cookware
Take first over-voltage number of the IGBT in electromagnetic heater within the unit time；
High-frequency and high-voltage cookware recognition unit, for judge the first over-voltage number whether less than the first preset overpressure time numerical value,
If so, the first kind cookware is further identified as high-frequency and high-voltage cookware；
First normal cookware otherwise recognition unit, for being greater than or equal to the first preset overpressure number in the first over-voltage number
Value, is further identified as normal cookware for the first kind cookware.
10. type identification device according to claim 8, which is characterized in that the normal cookware or low-frequency and low-voltage cookware
Identification module includes:
Second over-voltage number acquiring unit, for carrying out the phase of electromagnetic heating to the second class cookware in electromagnetic heater
Between, obtain second over-voltage number of the IGBT in electromagnetic heater within the unit time；
Low-frequency high-voltage cookware recognition unit, for judging whether the second over-voltage number is greater than the second preset overpressure time numerical value,
If so, the second class cookware is further identified as low-frequency high-voltage cookware；
First normal cookware otherwise recognition unit, for being less than or equal to the second preset overpressure number in the second over-voltage number
Value, is further identified as the normal cookware for the second class cookware.
11. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor
Machine program, which is characterized in that the processor is realized as described in any one of claim 1 to 6 when executing described program for electricity
The step of kind identification method of the cookware of magnetic heating.
12. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step as described in any one of claim 1 to 6 for the kind identification method of the cookware of electromagnetic heating is realized when processor executes
Suddenly.
13. a kind of electromagnetic heater, which is characterized in that be equipped in the electromagnetic heater as claim 7 to 10 is any
Type identification device described in for the cookware of electromagnetic heating.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741227A (en) * | 2020-05-29 | 2021-12-03 | 佛山市顺德区美的电热电器制造有限公司 | Control method and control device of cooking equipment, cooking equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006331910A (en) * | 2005-05-27 | 2006-12-07 | Matsushita Electric Ind Co Ltd | Induction heating cooking device |
| CN101326856A (en) * | 2005-10-14 | 2008-12-17 | E.G.O.电气设备制造股份有限公司 | Induction heating device and corresponding operating and pot detection method |
| CN102905411A (en) * | 2012-10-17 | 2013-01-30 | 美的集团股份有限公司 | Control circuit for cookware material judgment and method thereof |
-
2018
- 2018-04-26 CN CN201810386200.3A patent/CN110418447B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006331910A (en) * | 2005-05-27 | 2006-12-07 | Matsushita Electric Ind Co Ltd | Induction heating cooking device |
| CN1994021A (en) * | 2005-05-27 | 2007-07-04 | 松下电器产业株式会社 | Induction heating cooker |
| CN101326856A (en) * | 2005-10-14 | 2008-12-17 | E.G.O.电气设备制造股份有限公司 | Induction heating device and corresponding operating and pot detection method |
| US20100006563A1 (en) * | 2005-10-14 | 2010-01-14 | E.G.O. Elektro-Geraetebau Gmbh | Induction heating device and associated operating and saucepan detection method |
| CN102905411A (en) * | 2012-10-17 | 2013-01-30 | 美的集团股份有限公司 | Control circuit for cookware material judgment and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 廖世海、高振平: "一种基于单片机的电磁炉锅具检测方法", 《科技广场》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741227A (en) * | 2020-05-29 | 2021-12-03 | 佛山市顺德区美的电热电器制造有限公司 | Control method and control device of cooking equipment, cooking equipment and storage medium |
| CN113741227B (en) * | 2020-05-29 | 2023-08-29 | 佛山市顺德区美的电热电器制造有限公司 | Control method and control device of cooking equipment, cooking equipment and storage medium |
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