CN103939960B - Induction cooker and method for judging size of pan of induction cooker - Google Patents
Induction cooker and method for judging size of pan of induction cooker Download PDFInfo
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- CN103939960B CN103939960B CN201410124218.8A CN201410124218A CN103939960B CN 103939960 B CN103939960 B CN 103939960B CN 201410124218 A CN201410124218 A CN 201410124218A CN 103939960 B CN103939960 B CN 103939960B
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Abstract
The invention provides an induction cooker and a method for judging the size of a pan of the induction cooker. The method for judging the size of a pan comprises an obtaining step and a judging step, wherein induction values of multiple sensors for detecting a pan state at different positions in a heating region are obtained when a pan is arranged on a pan heating region of the induction cooker; and according to the induction values of the multiple sensors, the size of the pan is judged. According to the technical scheme, the induction cooker and the method provided by the invention have the advantage that a condition that the size of the pan arranged on the induction cooker is accurately detected is realized, and the accuracy of a judging result on the size of the pan is improved.
Description
Technical field
The present invention relates to electromagentic furnace technology field, in particular to a kind of pan size judgement side for electromagnetic oven
Method and a kind of electromagnetic oven.
Background technology
At present, the pan size determination methods for electromagnetic oven proposing in correlation technique are mainly passed through to calculate inspection pot mistake
The pulse number that in journey, pan produces, the umber of pulse that is, different size of pan produces is different, distinguishes the bottom of a pan according to umber of pulse
The size of size.Specifically, when the pulse number that pan produces is less than predetermined numerical value, it is judged as pannikin, electromagnetic oven is not right
It is heated；When the pulse number that pan produces is more than another predetermined numerical value, it is judged as cauldron, electromagnetic oven enters to it
Row heating.
When the pan that base diameter is between cauldron and pannikin is placed on electromagnetic oven, electromagnetic oven is likely to occur erroneous judgement
Phenomenon, thus may lead to electromagnetic oven occur Power Regulation heating situation.I.e. in heating process, if electromagnetic oven be judged as little
Pot, then stop heating, if being judged as cauldron when examining pot again, is heated, when said process is repeated, it is possible to create
Heating for the moment, the Power Regulation phenomenon not heated for the moment, it is difficult to normally be heated, are unfavorable for the use of user.Additionally, using arteries and veins
The mode of punching inspection pot can be impacted due to the interference of environment (as electromagnetic field, operating voltage etc.), causes testing result not
Accurately.
Therefore, how to improve the accuracy that pan size is judged becomes technical problem urgently to be resolved hurrily.
Content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
For this reason, being placed on electromagnetic oven it is an object of the present invention to proposing a kind of can more accurately detection
The method of pan size.
Further object is that proposing a kind of electromagnetic oven.
For achieving the above object, embodiment according to the first aspect of the invention is it is proposed that a kind of pot for electromagnetic oven
Tool size determination methods, comprising: obtaining step, when being placed on the pan heating region on described electromagnetic oven in pan, obtain
The influence value of the multiple sensors for detecting described pan state of diverse location setting in described heating region；Judge step
Suddenly, the influence value according to the plurality of sensor, judges the size of described pan.
Pan size determination methods according to an embodiment of the invention, are placed on the pan thermal treatment zone on electromagnetic oven when pan
During domain, of different sizes due to pan base diameter, therefore it is arranged on the sensing contact in pan heating region with pan bottom
The influence value of device is also different, therefore the influence value of multiple sensors by being arranged in pan heating region can judge pan
Size.
Specifically, the region judging pannikin can be set in pan heating region and setting judges the region of cauldron,
At least one sensor is set in each region, is in the influence value of the sensor in zones of different by detection, to pan
Size is judged, due to can get the state of pan in real time by sensor, is judged with the size to pan, because
This it can be avoided that in correlation technique by pulse examine pot forbidden and lead to electromagnetic oven that Power Regulation phenomenon occurs, cause to be in cauldron and
The problem of the pan intermittent heat between pannikin.Detect the size of pan simultaneously using multiple sensors, improve pan size
The accuracy of detection, so that electromagnetic oven energy normal work.
In addition, pan size determination methods according to the above embodiment of the present invention, can also have the technology added as follows
Feature:
According to one embodiment of present invention, the plurality of sensor includes multiple temperature sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described temperature sensor is respectively provided with the circumference in region；Described obtaining step is particularly as follows: place in described pan
In described pan heating region, with predetermined power, described pan was heated after the scheduled time, obtain and be arranged on described first circle
The temperature value that temperature sensor in shape region and on the circumference of described first border circular areas detects；Described judgement step tool
Body is: judges temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and is arranged on described the
Whether the difference of the temperature value that the arbitrary temperature sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to first
Threshold value, if so, then judges described pan as pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the first predeterminable range can be standard
The critical radius of pannikin, if the radius of pan is less than the first predeterminable range, when pan is placed in pan heating region, if
Put temperature sensor on the circumference of the first border circular areas due to being not exposed to pan, the temperature value therefore detecting is less than
The temperature value that the temperature sensor being arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm, in advance
Fixing time can be 10 seconds.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described temperature sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judgement step also includes: is arranged in described first border circular areas in judgement
Arbitrary temperature sensor on the temperature value that arbitrary temperature sensor detects and the circumference being arranged on described first border circular areas
When the difference of the temperature value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary temperature sensor temperature value detecting and the circumference being arranged on described second border circular areas on arbitrary TEMP
Whether the difference of the temperature value that device detects is less than or equal to the second predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the second predeterminable range can be standard
The critical radius of cauldron, if the radius of pan is more than the second predeterminable range, when pan is placed in pan heating region, if
Put temperature sensor on the circumference of the second border circular areas due to also having touched pan, the temperature value therefore detecting is close
The temperature value detecting in the temperature sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm,
The temperature sensor being arranged in the second border circular areas be arranged on temperature sensor on the circumference of the first border circular areas and/or
It is arranged on the temperature sensor in the first border circular areas.
According to one embodiment of present invention, the plurality of sensor includes multiple weight sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described weight sensor is respectively provided with the circumference in region；Described obtaining step is particularly as follows: place in described pan
In described pan heating region, obtain and be arranged in described first border circular areas and on the circumference of described first border circular areas
The gravimetric value that detects of weight sensor；Described judgement step is particularly as follows: judge to be arranged in described first border circular areas
Arbitrary weight sensor on the gravimetric value that arbitrary weight sensor detects and the circumference being arranged on described first border circular areas
Whether the difference of the gravimetric value detecting is more than or equal to the 3rd predetermined threshold, if so, then judges described pan as pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the first predeterminable range can be standard
The critical radius of pannikin, if the radius of pan is less than the first predeterminable range, when pan is placed in pan heating region, if
Put weight sensor on the circumference of the first border circular areas due to being not exposed to pan, the gravimetric value therefore detecting is less than
The gravimetric value that the weight sensor being arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described weight sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judgement step also includes: is arranged in described first border circular areas in judgement
Arbitrary weight sensor on the gravimetric value that arbitrary weight sensor detects and the circumference being arranged on described first border circular areas
When the difference of the gravimetric value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary weight sensor gravimetric value detecting and the circumference being arranged on described second border circular areas on arbitrary weight sensing
Whether the difference of the gravimetric value that device detects is less than or equal to the 4th predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the second predeterminable range can be standard
The critical radius of cauldron, if the radius of pan is more than the second predeterminable range, when pan is placed in pan heating region, if
Put weight sensor on the circumference of the second border circular areas due to also having touched pan, the gravimetric value therefore detecting is close
The gravimetric value detecting in the weight sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm,
The weight sensor being arranged in the second border circular areas be arranged on weight sensor on the circumference of the first border circular areas and/or
It is arranged on the weight sensor in the first border circular areas.
Embodiment according to a second aspect of the present invention is it is also proposed that a kind of electromagnetic oven, comprising: multiple sensors, is arranged on
Various location in the pan heating region of described electromagnetic oven, is placed on the pan in described pan heating region for detection
State；Acquiring unit, for when described pan is placed on described pan heating region, obtaining the sense of the plurality of sensor
Should be worth；Judging unit, the influence value of the plurality of sensor for being got according to described acquiring unit, judge described pan
Size.
Electromagnetic oven according to an embodiment of the invention, when being placed on the pan heating region on electromagnetic oven when pan, due to
Pan base diameter of different sizes, it is also different to be therefore arranged on the sensor contacting in pan heating region with pan bottom,
Therefore the influence value of multiple sensors by being arranged in pan heating region can judge the size of pan.
Specifically, the region judging pannikin can be set in pan heating region and setting judges the region of cauldron,
At least one sensor is set in each region, is in the influence value of the sensor in zones of different by detection, to pan
Size is judged, due to can get the state of pan in real time by sensor, is judged with the size to pan, because
This, it can be avoided that examining pot by pulse in correlation technique and Power Regulation phenomenon in electromagnetic oven, causes to being between cauldron and pannikin
Pan intermittent heat problem.Detect the size of pan using sensor simultaneously, it can be avoided that electromagnetic field and/or electromagnetism furnaceman
Make the impact of the factors such as voltage, improve the accuracy of testing result.
According to one embodiment of present invention, the plurality of sensor includes multiple temperature sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described temperature sensor is respectively provided with the circumference in region；Described acquiring unit specifically for: put in described pan
Put in described pan heating region, with predetermined power, described pan was heated after the scheduled time, obtain and be arranged on described first
The temperature value that temperature sensor in border circular areas and on the circumference of described first border circular areas detects；Described judging unit
Specifically for: judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and be arranged on institute
Whether the difference stating the temperature value that the arbitrary temperature sensor on the circumference of the first border circular areas detects is more than or equal to first
Predetermined threshold, if so, then judges described pan as pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the first predeterminable range can be the critical of standard pannikin
Radius, if the radius of pan is less than the first predeterminable range, when pan is placed in pan heating region, is arranged on the first circle
Due to being not exposed to pan, the temperature value therefore detecting is less than and is arranged on first temperature sensor on the circumference in shape region
The temperature value that temperature sensor in border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described temperature sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judging unit is additionally operable to: is arranged in described first border circular areas in judgement
Arbitrary temperature sensor on the temperature value that arbitrary temperature sensor detects and the circumference being arranged on described first border circular areas
When the difference of the temperature value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary temperature sensor temperature value detecting and the circumference being arranged on described second border circular areas on arbitrary TEMP
Whether the difference of the temperature value that device detects is less than or equal to the second predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the second predeterminable range can be the critical of standard cauldron
Radius, if the radius of pan is more than the second predeterminable range, when pan is placed in pan heating region, is arranged on the second circle
, due to also having touched pan, the temperature value therefore detecting is close to being arranged on for temperature sensor on the circumference in shape region
The temperature value that temperature sensor in two border circular areas detects.Wherein, the second predeterminable range can be 50mm, is arranged on second
Temperature sensor that temperature sensor in border circular areas is arranged on the circumference of the first border circular areas and/or be arranged on first
Temperature sensor in border circular areas.
According to one embodiment of present invention, the plurality of sensor includes multiple weight sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described weight sensor is respectively provided with the circumference in region；Described acquiring unit specifically for: put in described pan
Put in described pan heating region, obtain be arranged in described first border circular areas and described first border circular areas circumference
On the gravimetric value that detects of weight sensor；Described judging unit specifically for: judge be arranged on described first border circular areas
The gravimetric value that interior arbitrary weight sensor detects is passed with the arbitrary weight on the circumference being arranged on described first border circular areas
Whether the difference of the gravimetric value that sensor detects is more than or equal to the 3rd predetermined threshold, if so, then judges described pan as pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the first predeterminable range can be the critical of standard pannikin
Radius, if the radius of pan is less than the first predeterminable range, when pan is placed in pan heating region, is arranged on the first circle
Due to being not exposed to pan, the gravimetric value therefore detecting is less than and is arranged on first weight sensor on the circumference in shape region
The gravimetric value that weight sensor in border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described weight sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judging unit is additionally operable to: is arranged in described first border circular areas in judgement
Arbitrary weight sensor on the gravimetric value that arbitrary weight sensor detects and the circumference being arranged on described first border circular areas
When the difference of the gravimetric value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary weight sensor gravimetric value detecting and the circumference being arranged on described second border circular areas on arbitrary weight sensing
Whether the difference of the gravimetric value that device detects is less than or equal to the 4th predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the second predeterminable range can be the critical of standard cauldron
Radius, if the radius of pan is more than the second predeterminable range, when pan is placed in pan heating region, is arranged on the second circle
, due to also having touched pan, the gravimetric value therefore detecting is close to being arranged on for weight sensor on the circumference in shape region
The gravimetric value that weight sensor in two border circular areas detects.Wherein, the second predeterminable range can be 50mm, is arranged on second
Weight sensor that weight sensor in border circular areas is arranged on the circumference of the first border circular areas and/or be arranged on first
Weight sensor in border circular areas.
According to one embodiment of present invention, when judging described pan for pannikin, described electromagnetic oven stops to described pot
Tool is heated；When judging described pan for cauldron or when being between cauldron and pannikin, described electromagnetic oven is with normal heating
Mode heats to described pan.
Electromagnetic oven according to an embodiment of the invention, when judging pan for pannikin, electromagnetic oven stops pan being heated,
Judge pan for cauldron or when being between cauldron and pannikin, electromagnetic oven normally heats to pan, it is to avoid in prior art
Continuous Power Regulation when being in the pan between cauldron and pannikin in heating, the problem of intermittent heat.
According to one embodiment of present invention, described electromagnetic oven includes: electromagnetic oven panel, described pan heating region setting
On described electromagnetic oven panel, the plurality of sensor is arranged on described electromagnetic oven panel and is contacted with described pan, and/or
It is arranged on described electromagnetic oven panel and do not contact with described pan.
Electromagnetic oven according to an embodiment of the invention, pan heating region is arranged on electromagnetic oven panel, can be intuitively
Display pan heating region, be easy to user according to pan heating region placing cooker, sensor be arranged on electromagnetic oven panel and
When contacting with pan, due to pan bottom can be directly contacted, therefore, it is possible to the state of pan is more accurately detected；?
When sensor is temperature sensor, temperature sensor can also be arranged on electromagnetic oven panel and when not contacting with pan, passes through
The temperature of the temperature indirect detection pan of detection electromagnetic oven panel.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
Substantially and easy to understand, wherein:
Fig. 1 shows the exemplary flow of the pan size determination methods being used for electromagnetic oven according to an embodiment of the invention
Figure；
Fig. 2 shows the schematic block diagram of electromagnetic oven according to an embodiment of the invention；
Fig. 3 a to Fig. 3 c shows the set location schematic diagram of sensor according to an embodiment of the invention.
Specific embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specifically real
Mode of applying is further described in detail to the present invention.It should be noted that in the case of not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Elaborate a lot of details in the following description in order to fully understand the present invention, but, the present invention also may be used
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not described below
Specific embodiment restriction.
Fig. 1 shows the exemplary flow of the pan size determination methods being used for electromagnetic oven according to an embodiment of the invention
Figure.
As shown in figure 1, being used for the pan size determination methods of electromagnetic oven according to an embodiment of the invention, comprising: step
102, i.e. obtaining step, when being placed on the pan heating region on described electromagnetic oven in pan, obtain in described heating region
Diverse location setting the multiple sensors for detecting described pan state influence value；Step 104, that is, judge step,
According to the influence value of the plurality of sensor, judge the size of described pan.
When being placed on the pan heating region on electromagnetic oven when pan, of different sizes due to pan base diameter, therefore
The influence value being arranged on the sensor contact in pan heating region with pan bottom is also different, therefore can be by being arranged on pot
The influence value of the multiple sensors in tool heating region judges the size of pan.
Specifically, the region judging pannikin can be set in pan heating region and setting judges the region of cauldron,
At least one sensor is set in each region, is in the influence value of the sensor in zones of different by detection, to pan
Size is judged, due to can get the state of pan in real time by sensor, is judged with the size to pan, because
This it can be avoided that in correlation technique by pulse examine pot forbidden and lead to electromagnetic oven that Power Regulation phenomenon occurs, cause to be in cauldron and
The problem of the pan intermittent heat between pannikin.Detect the size of pan simultaneously using multiple sensors, improve pan size
The accuracy of detection, so that electromagnetic oven energy normal work.
Wherein, sensor can have multiple avatars, two of which way of realization introduced below:
Way of realization one:
According to one embodiment of present invention, the plurality of sensor includes multiple temperature sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described temperature sensor is respectively provided with the circumference in region；Described obtaining step is particularly as follows: place in described pan
In described pan heating region, with predetermined power, described pan was heated after the scheduled time, obtain and be arranged on described first circle
The temperature value that temperature sensor in shape region and on the circumference of described first border circular areas detects；Described judgement step tool
Body is: judges temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and is arranged on described the
Whether the difference of the temperature value that the arbitrary temperature sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to first
Threshold value, if so, then judges described pan as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is pre- less than first
If distance, then, when pan is placed in pan heating region, it is arranged on the temperature sensor on the circumference of the first border circular areas
Due to being not exposed to pan, the temperature value therefore detecting is less than the temperature sensor detection being arranged in the first border circular areas
The temperature value arriving.Wherein, the first predeterminable range can be 30mm, and the scheduled time can be 10 seconds.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described temperature sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judgement step also includes: is arranged in described first border circular areas in judgement
Arbitrary temperature sensor on the temperature value that arbitrary temperature sensor detects and the circumference being arranged on described first border circular areas
When the difference of the temperature value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary temperature sensor temperature value detecting and the circumference being arranged on described second border circular areas on arbitrary TEMP
Whether the difference of the temperature value that device detects is less than or equal to the second predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Specifically, the second predeterminable range can be the critical radius of standard cauldron, if the radius of pan is pre- more than second
If distance, then, when pan is placed in pan heating region, it is arranged on the temperature sensor on the circumference of the second border circular areas
Due to also having touched pan, the temperature value therefore detecting is close to the temperature sensor inspection being arranged in the second border circular areas
The temperature value measuring.Wherein, the second predeterminable range can be 50mm, and the temperature sensor being arranged in the second border circular areas sets
Put in the temperature sensor on the circumference of the first border circular areas and/or be arranged on the temperature sensor in the first border circular areas.
Way of realization two:
According to one embodiment of present invention, the plurality of sensor includes multiple weight sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described weight sensor is respectively provided with the circumference in region；Described obtaining step is particularly as follows: place in described pan
In described pan heating region, obtain and be arranged in described first border circular areas and on the circumference of described first border circular areas
The gravimetric value that detects of weight sensor；Described judgement step is particularly as follows: judge to be arranged in described first border circular areas
Arbitrary weight sensor on the gravimetric value that arbitrary weight sensor detects and the circumference being arranged on described first border circular areas
Whether the difference of the gravimetric value detecting is more than or equal to the 3rd predetermined threshold, if so, then judges described pan as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is pre- less than first
If distance, then, when pan is placed in pan heating region, it is arranged on the weight sensor on the circumference of the first border circular areas
Due to being not exposed to pan, the gravimetric value therefore detecting is less than the weight sensor detection being arranged in the first border circular areas
The gravimetric value arriving.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described weight sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judgement step also includes: is arranged in described first border circular areas in judgement
Arbitrary weight sensor on the gravimetric value that arbitrary weight sensor detects and the circumference being arranged on described first border circular areas
When the difference of the gravimetric value detecting is less than described first predetermined threshold, determine whether to be arranged in described second border circular areas
Arbitrary weight sensor gravimetric value detecting and the circumference being arranged on described second border circular areas on arbitrary weight sensing
Whether the difference of the gravimetric value that device detects is less than or equal to the 4th predetermined threshold, if so, then judges described pan as cauldron；No
Then, judge that described pan is between cauldron and pannikin.
Specifically, the second predeterminable range can be the critical radius of standard cauldron, if the radius of pan is pre- more than second
If distance, then, when pan is placed in pan heating region, it is arranged on the weight sensor on the circumference of the second border circular areas
Due to also having touched pan, the gravimetric value therefore detecting is close to the weight sensor inspection being arranged in the second border circular areas
The gravimetric value measuring.Wherein, the second predeterminable range can be 50mm, and the weight sensor being arranged in the second border circular areas sets
Put in the weight sensor on the circumference of the first border circular areas and/or be arranged on the weight sensor in the first border circular areas.
Fig. 2 shows the schematic block diagram of electromagnetic oven according to an embodiment of the invention.
As shown in Fig. 2 electromagnetic oven 200 according to an embodiment of the invention, comprising: multiple sensors (not shown in Fig. 2),
It is arranged on the various location in the pan heating region of described electromagnetic oven 200, be placed on the described pan thermal treatment zone for detection
The state of the pan in domain；Acquiring unit 202, described for when described pan is placed on described pan heating region, obtaining
The influence value of multiple sensors；Judging unit 204, for the plurality of sensor being got according to described acquiring unit 202
Influence value, judge the size of described pan.
When being placed on the pan heating region on electromagnetic oven 200 when pan, of different sizes due to pan base diameter, because
It is also different that this is arranged on the sensor contacting in pan heating region with pan bottom, therefore can be heated by being arranged on pan
The influence value of the multiple sensors in region judges the size of pan.
Specifically, the region judging pannikin can be set in pan heating region and setting judges the region of cauldron,
At least one sensor is set in each region, is in the influence value of the sensor in zones of different by detection, to pan
Size is judged, due to can get the state of pan in real time by sensor, is judged with the size to pan, because
This, it can be avoided that examining pot by pulse in correlation technique and Power Regulation phenomenon in electromagnetic oven 200, causes to being in cauldron and pannikin
Between pan intermittent heat problem.Detect the size of pan using sensor simultaneously, it can be avoided that electromagnetic field and/or electromagnetism
The impact of the factors such as stove 200 operating voltage, improves the accuracy of testing result.
When sensor is for temperature sensor, can detect whether pan is pannikin by below scheme:
According to one embodiment of present invention, the plurality of sensor includes multiple temperature sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described temperature sensor is respectively provided with the circumference in region；Described acquiring unit 202 specifically for: in described pan
When being placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain and be arranged on described the
The temperature value that temperature sensor in one border circular areas and on the circumference of described first border circular areas detects；Described judgement is single
Unit 204 specifically for: judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and set
Whether the difference putting the temperature value that the arbitrary temperature sensor on the circumference of described first border circular areas detects is more than or waits
In the first predetermined threshold, if so, then judge described pan as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is pre- less than first
If distance, then, when pan is placed in pan heating region, it is arranged on the temperature sensor on the circumference of the first border circular areas
Due to being not exposed to pan, the temperature value therefore detecting is less than the temperature sensor detection being arranged in the first border circular areas
The temperature value arriving.Wherein, the first predeterminable range can be 30mm.
When sensor is for temperature sensor, can detect whether pan is cauldron by below scheme:
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described temperature sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judging unit 204 is additionally operable to: is arranged in described first border circular areas in judgement
Arbitrary temperature sensor temperature value detecting and the circumference being arranged on described first border circular areas on arbitrary TEMP
When the difference of the temperature value that device detects is less than described first predetermined threshold, determine whether to be arranged on described second border circular areas
The temperature value that interior arbitrary temperature sensor detects is passed with the arbitrary temperature on the circumference being arranged on described second border circular areas
Whether the difference of the temperature value that sensor detects is less than or equal to the second predetermined threshold, if so, then judges described pan as cauldron；
Otherwise, it is determined that described pan is between cauldron and pannikin.
Specifically, the second predeterminable range can be the critical radius of standard cauldron, if the radius of pan is pre- more than second
If distance, then, when pan is placed in pan heating region, it is arranged on the temperature sensor on the circumference of the second border circular areas
Due to also having touched pan, the temperature value therefore detecting is close to the temperature sensor inspection being arranged in the second border circular areas
The temperature value measuring.Wherein, the second predeterminable range can be 50mm, and the temperature sensor being arranged in the second border circular areas sets
Put in the temperature sensor on the circumference of the first border circular areas and/or be arranged on the temperature sensor in the first border circular areas.
When sensor is for weight sensor, can detect whether pan is pannikin by below scheme:
According to one embodiment of present invention, the plurality of sensor includes multiple weight sensors；Wherein, with described
The center of pan heating region is the center of circle, and the first predeterminable range is in the first border circular areas of radius, and described first circle
At least one described weight sensor is respectively provided with the circumference in region；Described acquiring unit 202 specifically for: in described pan
When being placed on described pan heating region, obtain be arranged on described first in border circular areas and described first border circular areas circle
The gravimetric value that weight sensor on week detects；Described judging unit 204 specifically for: judge to be arranged on described first circular
Arbitrary heavy on the gravimetric value that arbitrary weight sensor in region detects and the circumference being arranged on described first border circular areas
Whether the difference of the gravimetric value that quantity sensor detects is more than or equal to the 3rd predetermined threshold, if so, then judge described pan as
Pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is pre- less than first
If distance, then, when pan is placed in pan heating region, it is arranged on the weight sensor on the circumference of the first border circular areas
Due to being not exposed to pan, the gravimetric value therefore detecting is less than the weight sensor detection being arranged in the first border circular areas
The gravimetric value arriving.Wherein, the first predeterminable range can be 30mm.
When sensor is for weight sensor, can detect whether pan is cauldron by below scheme:
According to one embodiment of present invention, with the center of described pan heating region as the center of circle, the second predeterminable range
At least one described weight sensor is respectively provided with the circumference for the second border circular areas of radius, wherein, described second presets
Distance is more than described first predeterminable range；Described judging unit 204 is additionally operable to: is arranged in described first border circular areas in judgement
Arbitrary weight sensor gravimetric value detecting and the circumference being arranged on described first border circular areas on arbitrary weight sensing
When the difference of the gravimetric value that device detects is less than described first predetermined threshold, determine whether to be arranged on described second border circular areas
The gravimetric value that interior arbitrary weight sensor detects is passed with the arbitrary weight on the circumference being arranged on described second border circular areas
Whether the difference of the gravimetric value that sensor detects is less than or equal to the 4th predetermined threshold, if so, then judges described pan as cauldron；
Otherwise, it is determined that described pan is between cauldron and pannikin.
Specifically, the second predeterminable range can be the critical radius of standard cauldron, if the radius of pan is pre- more than second
If distance, then, when pan is placed in pan heating region, it is arranged on the weight sensor on the circumference of the second border circular areas
Due to also having touched pan, the gravimetric value therefore detecting is close to the weight sensor inspection being arranged in the second border circular areas
The gravimetric value measuring.Wherein, the second predeterminable range can be 50mm, and the weight sensor being arranged in the second border circular areas sets
Put in the weight sensor on the circumference of the first border circular areas and/or be arranged on the weight sensor in the first border circular areas.
According to one embodiment of present invention, when judging described pan for pannikin, described electromagnetic oven stops to described pot
Tool is heated；When judging described pan for cauldron or when being between cauldron and pannikin, described electromagnetic oven is with normal heating
Mode heats to described pan.
When judging pan for pannikin, electromagnetic oven stops pan being heated, and is judging that pan for cauldron or is in cauldron
When and pannikin between, electromagnetic oven normally heats to pan, it is to avoid be between cauldron and pannikin in heating in prior art
Continuous Power Regulation during pan, the problem of intermittent heat.
According to one embodiment of present invention, described electromagnetic oven includes: electromagnetic oven panel (not shown in Fig. 2), described pot
Tool heating region be arranged on described electromagnetic oven panel, the plurality of sensor be arranged on described electromagnetic oven panel and with described
Pan contacts, and/or is arranged on described electromagnetic oven panel and does not contact with described pan.
Pan heating region is arranged on electromagnetic oven panel, can intuitively show pan heating region, be easy to user's root
According to pan heating region placing cooker, sensor is arranged on electromagnetic oven panel and when being contacted with pan, due to can directly connect
Contact pan bottom, therefore, it is possible to the state of pan is more accurately detected；When sensor is for temperature sensor, temperature passes
Sensor can also be arranged on electromagnetic oven panel and when not contacting with pan, by detecting the temperature indirect detection of electromagnetic oven panel
The temperature of pan.
In sum, the set location for detecting multiple sensors of pan state can have a following set-up mode:
Embodiment one:
As shown in Figure 3 a, the central spot in the pan heating region 304 on electromagnetic oven panel 302 arranges a sensing
Device 306, and arrange with central point as the center of circle, on the circumference 312 of the first border circular areas as radius for first predeterminable range to
A few sensor, is provided with two sensors, i.e. sensor 308, sensor 310 in Fig. 3 a.Wherein, the first predeterminable range can
Think the critical radius of standard pannikin, can be such as 30mm, whether to be that pannikin judges to pan.
Embodiment two:
As shown in Figure 3 b, the central spot in the pan heating region 304 on electromagnetic oven panel 302 arranges a sensing
Device 306, and arrange with central point as the center of circle, on the circumference 312 of the first border circular areas as radius for first predeterminable range to
A few sensor, is provided with two sensors, i.e. sensor 308, sensor 310 in Fig. 3 a, and in the first border circular areas
One sensor 314 of internal setting.Wherein, the first predeterminable range can be the critical radius of standard pannikin, can be such as 30mm,
Whether to be that pannikin judges to pan.
Certainly, being arranged on the sensor within the first border circular areas can be any amount, and position can also arbitrarily be arranged,
As sensor 314 can be arranged only inside the first border circular areas.
Embodiment three:
As shown in Figure 3 c, on the basis of the set-up mode of Fig. 3 a, with central point as the center of circle, the second predeterminable range is as radius
The circumference 316 of the second border circular areas at least one sensor is set, in Fig. 3 c only on the circumference 316 of the second border circular areas
It is provided with a sensor 318.Wherein, the first predeterminable range can be the critical radius of standard pannikin, can be such as 30mm, with
Whether it is that pannikin judges to pan, the second predeterminable range can be the critical radius of standard cauldron, can be such as 50mm, with
Whether it is cauldron to pan, and whether judged between cauldron and pannikin.
Certainly, in order to more accurately judge to the size of pan, can be apart from pan in pan heating region
It is respectively provided with multiple sensors, with according at the different distance of pan heating region center at the different distance of heating region center
The numerical value that detects of sensor the size of pan is judged.
Additionally, the mode of pot is examined in the pulse that the technical scheme of the application can be combined with proposing in correlation technique, with more
Accurately detect the size of pan.Specifically, after the mode examining pot according to pulse primarily determines that the size of pan, then can lead to
The technical scheme crossing the application is verified further to result of determination.
Technical scheme is described in detail above in association with accompanying drawing, the present invention propose a kind of new for electromagnetic oven
Pan size judge scheme, it can be avoided that in correlation technique using pulse examine pot mode judge pan size when, by electricity
The impact of the factor such as magnetic field and/or electromagnetic oven operating voltage, improves the accuracy of the judged result to pan size.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of pan size determination methods for electromagnetic oven are it is characterised in that include:
Obtaining step, when being placed on the pan placement region on described electromagnetic oven in pan, obtains in described placement region
The influence value of the multiple sensors for detecting described pan state of diverse location setting；
Judge step, according to the influence value of the plurality of sensor, judge the size of described pan；
The plurality of sensor includes multiple temperature sensors,
Wherein, with the center of described pan placement region as the center of circle, the first predeterminable range is in the first border circular areas of radius,
And it is respectively provided with least one described temperature sensor on the circumference of described first border circular areas,
Described obtaining step particularly as follows:
When described pan is placed on described pan placement region, with predetermined power, described pan was heated after the scheduled time, obtain
Take and be arranged on the temperature that the temperature sensor in described first border circular areas and on the circumference of described first border circular areas detects
Angle value,
Described judgement step particularly as follows:
Judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and be arranged on described the
Whether the difference of the temperature value that the arbitrary temperature sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to first
Threshold value, if so, then judges described pan as pannikin；Or
The plurality of sensor includes multiple weight sensors,
Wherein, with the center of described pan placement region as the center of circle, the first predeterminable range is in the first border circular areas of radius,
And it is respectively provided with least one described weight sensor on the circumference of described first border circular areas,
Described obtaining step particularly as follows:
When described pan is placed on described pan placement region, obtains and be arranged on described first in border circular areas and described the
The gravimetric value that weight sensor on the circumference of one border circular areas detects,
Described judgement step particularly as follows:
Judge gravimetric value that arbitrary weight sensor of being arranged in described first border circular areas detects and be arranged on described the
Whether the difference of the gravimetric value that the arbitrary weight sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to the 3rd
Threshold value, if so, then judges described pan as pannikin.
2. the pan size determination methods for electromagnetic oven according to claim 1 are it is characterised in that with described pan
The center of placement region is the center of circle, and the second predeterminable range is to be respectively provided with least one on the circumference of the second border circular areas of radius
Described temperature sensor, wherein, described second predeterminable range is more than described first predeterminable range；
Described judgement step also includes:
Judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects be arranged on described
The difference of the temperature value that the arbitrary temperature sensor on the circumference of the first border circular areas detects is less than described first predetermined threshold
When, determine whether temperature value that the arbitrary temperature sensor being arranged in described second border circular areas detects and be arranged on institute
Whether the difference stating the temperature value that the arbitrary temperature sensor on the circumference of the second border circular areas detects is less than or equal to second
Predetermined threshold, if so, then judges described pan as cauldron；Otherwise, it is determined that described pan is between cauldron and pannikin.
3. the pan size determination methods for electromagnetic oven according to claim 1 are it is characterised in that with described pan
The center of placement region is the center of circle, and the second predeterminable range is to be respectively provided with least one on the circumference of the second border circular areas of radius
Described weight sensor, wherein, described second predeterminable range is more than described first predeterminable range；
Described judgement step also includes:
Judge gravimetric value that arbitrary weight sensor of being arranged in described first border circular areas detects be arranged on described
The difference of the gravimetric value that the arbitrary weight sensor on the circumference of the first border circular areas detects is less than described 3rd predetermined threshold
When, determine whether gravimetric value that the arbitrary weight sensor being arranged in described second border circular areas detects and be arranged on institute
Whether the difference stating the gravimetric value that the arbitrary weight sensor on the circumference of the second border circular areas detects is less than or equal to the 4th
Predetermined threshold, if so, then judges described pan as cauldron；Otherwise, it is determined that described pan is between cauldron and pannikin.
4. a kind of electromagnetic oven is it is characterised in that include:
Multiple sensors, are arranged on the various location in the pan placement region of described electromagnetic oven, are placed on institute for detection
State the state of the pan in pan placement region；
Acquiring unit, for when described pan is placed on described pan placement region, obtaining the sensing of the plurality of sensor
Value；
Judging unit, the influence value of the plurality of sensor for being got according to described acquiring unit, judge described pan
Size；
The plurality of sensor includes multiple temperature sensors；
Wherein, with the center of described pan placement region as the center of circle, the first predeterminable range is in the first border circular areas of radius,
And it is respectively provided with least one described temperature sensor on the circumference of described first border circular areas；
Described acquiring unit specifically for:
When described pan is placed on described pan placement region, with predetermined power, described pan was heated after the scheduled time, obtain
Take and be arranged on the temperature that the temperature sensor in described first border circular areas and on the circumference of described first border circular areas detects
Angle value；
Described judging unit specifically for:
Judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects and be arranged on described the
Whether the difference of the temperature value that the arbitrary temperature sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to first
Threshold value, if so, then judges described pan as pannikin；
The plurality of sensor includes multiple weight sensors；
Wherein, with the center of described pan placement region as the center of circle, the first predeterminable range is in the first border circular areas of radius,
And it is respectively provided with least one described weight sensor on the circumference of described first border circular areas；
Described acquiring unit specifically for:
When described pan is placed on described pan placement region, obtains and be arranged on described first in border circular areas and described the
The gravimetric value that weight sensor on the circumference of one border circular areas detects；
Described judging unit specifically for:
Judge gravimetric value that arbitrary weight sensor of being arranged in described first border circular areas detects and be arranged on described the
Whether the difference of the gravimetric value that the arbitrary weight sensor on the circumference of one border circular areas detects makes a reservation for more than or equal to the 3rd
Threshold value, if so, then judges described pan as pannikin.
5. electromagnetic oven according to claim 4 is it is characterised in that with the center of described pan placement region as the center of circle,
Second predeterminable range is to be respectively provided with least one described temperature sensor on the circumference of the second border circular areas of radius, wherein,
Described second predeterminable range is more than described first predeterminable range；
Described judging unit is additionally operable to:
Judge temperature value that arbitrary temperature sensor of being arranged in described first border circular areas detects be arranged on described
The difference of the temperature value that the arbitrary temperature sensor on the circumference of the first border circular areas detects is less than described first predetermined threshold
When, determine whether temperature value that the arbitrary temperature sensor being arranged in described second border circular areas detects and be arranged on institute
Whether the difference stating the temperature value that the arbitrary temperature sensor on the circumference of the second border circular areas detects is less than or equal to second
Predetermined threshold, if so, then judges described pan as cauldron；Otherwise, it is determined that described pan is between cauldron and pannikin.
6. electromagnetic oven according to claim 4 is it is characterised in that with the center of described pan placement region as the center of circle,
Second predeterminable range is to be respectively provided with least one described weight sensor on the circumference of the second border circular areas of radius, wherein,
Described second predeterminable range is more than described first predeterminable range；
Described judging unit is additionally operable to:
Judge gravimetric value that arbitrary weight sensor of being arranged in described first border circular areas detects be arranged on described
The difference of the gravimetric value that the arbitrary weight sensor on the circumference of the first border circular areas detects is less than described 3rd predetermined threshold
When, determine whether gravimetric value that the arbitrary weight sensor being arranged in described second border circular areas detects and be arranged on institute
Whether the difference stating the gravimetric value that the arbitrary weight sensor on the circumference of the second border circular areas detects is less than or equal to the 4th
Predetermined threshold, if so, then judges described pan as cauldron；Otherwise, it is determined that described pan is between cauldron and pannikin.
7. the electromagnetic oven according to any one of claim 4 to 6 is it is characterised in that when judging described pan for pannikin,
Described electromagnetic oven stops described pan is heated；When judging that described pan for cauldron or is between cauldron and pannikin
When, described electromagnetic oven is heated to described pan in normal heating mode.
8. the electromagnetic oven according to any one of claim 4 to 6 is it is characterised in that described electromagnetic oven also includes:
Electromagnetic oven panel, described pan heating region is arranged on described electromagnetic oven panel, and the plurality of sensor is arranged on institute
State on electromagnetic oven panel and contact with described pan, and/or be arranged on described electromagnetic oven panel and do not contact with described pan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124218.8A CN103939960B (en) | 2014-03-28 | 2014-03-28 | Induction cooker and method for judging size of pan of induction cooker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410124218.8A CN103939960B (en) | 2014-03-28 | 2014-03-28 | Induction cooker and method for judging size of pan of induction cooker |
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| CN104602378B (en) * | 2014-12-26 | 2017-08-15 | 珠海格力电器股份有限公司 | Electromagnetic oven and control method |
| CN105792400A (en) * | 2016-04-19 | 2016-07-20 | 广东美的厨房电器制造有限公司 | Induction cooker and method for detecting pan on induction cooker |
| CN107816935B (en) * | 2016-09-14 | 2019-12-27 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for detecting deformation of cookware |
| US11940159B2 (en) * | 2020-03-11 | 2024-03-26 | Haier Us Appliance Solutions, Inc. | Temperature probe for a cooktop appliance with a gas burner |
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| DE10135270A1 (en) * | 2001-07-13 | 2003-01-23 | Ego Elektro Geraetebau Gmbh | Electric radiant heater with an active sensor for cooking vessel detection |
| DE102005030555A1 (en) * | 2005-06-22 | 2007-01-04 | E.G.O. Elektro-Gerätebau GmbH | Sensor device for a heating device |
| CN201875773U (en) * | 2010-10-28 | 2011-06-22 | 李运宇 | Device for judging material and dimension of pan used on induction cooker |
| CN202960053U (en) * | 2012-12-10 | 2013-06-05 | 杭州信多达电器有限公司 | Electric cooker capable of accurately judging food amount |
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