CN103939960A - 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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- CN103939960A CN103939960A CN201410124218.8A CN201410124218A CN103939960A CN 103939960 A CN103939960 A CN 103939960A CN 201410124218 A CN201410124218 A CN 201410124218A CN 103939960 A CN103939960 A CN 103939960A
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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 size determination methods of the pan for electromagnetic oven and a kind of electromagnetic oven.
Background technology
At present, the pan for electromagnetic oven that proposes in correlation technique size determination methods is mainly examine by calculatings the pulse number that pot process pan produces, i.e. the umber of pulse difference of different big or small pans generations is distinguished the size of the bottom of a pan size according to umber of pulse.Particularly, in the time that the pulse number of pan generation is less than predetermined numerical value, be judged as pannikin, electromagnetic oven does not heat it; In the time that the pulse number of pan generation is greater than another predetermined numerical value, be judged as cauldron, electromagnetic oven heats it.
In the time that the pan of base diameter between cauldron and pannikin is placed on electromagnetic oven, may there is the phenomenon of erroneous judgement in electromagnetic oven, thereby may cause electromagnetic oven to occur the situation of Power Regulation heating.In heating process, if electromagnetic oven is judged as pannikin, stop heating, if be judged as cauldron while again examining pot, heat, in the time repeatedly carrying out said process, the Power Regulation phenomenon that may form heating for the moment, does not heat for the moment, is difficult to heat normally, is unfavorable for user's use.In addition, use the mode of pulse inspection pot to impact due to the interference of environment (as electromagnetic field, operating voltage etc.), cause the inaccurate of testing result.
Therefore, how to improve the accuracy of pan size judgement is become to technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art or correlation technique.
For this reason, one object of the present invention has been to propose a kind of method that can detect more exactly the pan size being placed on electromagnetic oven.
Another object of the present invention is to have proposed a kind of electromagnetic oven.
For achieving the above object, embodiment according to a first aspect of the invention, a kind of size of the pan for electromagnetic oven determination methods has been proposed, comprise: obtaining step, in the time that pan is placed on the pan heating region on described electromagnetic oven, obtain the influence value of the multiple sensors for detection of described pan state of the diverse location setting in described heating region; Determining step, according to the influence value of described multiple sensors, judges the size of described pan.
Pan size determination methods according to an embodiment of the invention, in the time that pan is placed on the pan heating region on electromagnetic oven, due to varying in size of pan base diameter, therefore the influence value that is arranged on the sensor contacting from pan bottom in pan heating region is also different, therefore can judge by being arranged on the influence value of the multiple sensors in pan heating region the size of pan.
Particularly, can in pan heating region, arrange and judge the region of pannikin and the region that judges cauldron is set, at least one sensor is set in each region, by detecting the influence value of the sensor in zones of different, size to pan judges, due to can Real-time Obtaining by sensor to the state of pan, judge with the size to pan, therefore can avoid examining pot by pulse in correlation technique and be forbidden to cause electromagnetic oven to occur Power Regulation phenomenon, cause the problem to the interrupted heating of the pan between cauldron and pannikin.Use multiple sensors to detect the size of pan simultaneously, improved the accuracy of pan size detection, thereby electromagnetic oven can normally be worked.
In addition, pan size determination methods according to the above embodiment of the present invention, can also have following additional technical characterictic:
According to one embodiment of present invention, described multiple sensor comprises multiple temperature sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor; Described obtaining step is specially: in the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects; Described determining step is specially: whether the difference that judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the first border circular areas owing to not touching pan, the temperature value therefore detecting is less than the temperature value that the temperature sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm, and the scheduled time can be 10 seconds.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, described determining step also comprises: when the difference of the temperature value that the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 the critical radius of standard cauldron, if the radius of pan is greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the second border circular areas owing to also having touched pan, the temperature value that the temperature value therefore detecting detects close to the temperature sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the temperature sensor on the circumference that temperature sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the temperature sensor in the first border circular areas.
According to one embodiment of present invention, described multiple sensor comprises multiple weight sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor; Described obtaining step is specially: in the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor; Described determining step is specially: whether the difference that judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
Pan size determination methods according to an embodiment of the invention, specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the first border circular areas owing to not touching pan, the gravimetric value therefore detecting is less than the gravimetric value that the weight sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, described determining step also comprises: when the difference of the gravimetric value that the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 the critical radius of standard cauldron, if the radius of pan is greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the second border circular areas owing to also having touched pan, the gravimetric value that the gravimetric value therefore detecting detects close to the weight sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the weight sensor on the circumference that weight sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the weight sensor in the first border circular areas.
According to the embodiment of second aspect present invention, a kind of electromagnetic oven has also been proposed, comprising: multiple sensors, are arranged on the diverse location place in the pan heating region of described electromagnetic oven, for detection of the state that is placed on the pan in described pan heating region; Acquiring unit, in the time that described pan is placed on described pan heating region, obtains the influence value of described multiple sensors; Judging unit, for the influence value of described multiple sensors of getting according to described acquiring unit, judges the size of described pan.
Electromagnetic oven according to an embodiment of the invention, in the time that pan is placed on the pan heating region on electromagnetic oven, due to varying in size of pan base diameter, therefore be arranged on the sensor contacting from pan bottom in pan heating region also different, therefore can judge by being arranged on the influence value of the multiple sensors in pan heating region the size of pan.
Particularly, can in pan heating region, arrange and judge the region of pannikin and the region that judges cauldron is set, at least one sensor is set in each region, by detecting the influence value of the sensor in zones of different, size to pan judges, due to can Real-time Obtaining by sensor to the state of pan, judge with the size to pan, therefore can avoid in correlation technique examining pot and Power Regulation phenomenon appears in electromagnetic oven by pulse, cause the problem to the interrupted heating of the pan between cauldron and pannikin.Use sensor to detect the size of pan simultaneously, can avoid the impact of the factor such as electromagnetic field and/or electromagnetic oven operating voltage, improved the accuracy of testing result.
According to one embodiment of present invention, described multiple sensor comprises multiple temperature sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor; Described acquiring unit specifically for: in the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects; Whether the difference that described judging unit is arranged on specifically for: judgement the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the first border circular areas owing to not touching pan, the temperature value therefore detecting is less than the temperature value that the temperature sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, when the difference of the temperature value that described judging unit also detects for: the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 radius of standard cauldron, if the radius of pan is greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the second border circular areas owing to also having touched pan, the temperature value that the temperature value therefore detecting detects close to the temperature sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the temperature sensor on the circumference that temperature sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the temperature sensor in the first border circular areas.
According to one embodiment of present invention, described multiple sensor comprises multiple weight sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor; Described acquiring unit specifically for: in the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor; Whether the difference that described judging unit is arranged on specifically for: judgement the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
Electromagnetic oven according to an embodiment of the invention, specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the first border circular areas owing to not touching pan, the gravimetric value therefore detecting is less than the gravimetric value that the weight sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, when the difference of the gravimetric value that described judging unit also detects for: the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 radius of standard cauldron, if the radius of pan is greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the second border circular areas owing to also having touched pan, the gravimetric value that the gravimetric value therefore detecting detects close to the weight sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the weight sensor on the circumference that weight sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the weight sensor in the first border circular areas.
According to one embodiment of present invention, in the time judging that described pan is pannikin, described electromagnetic oven stops described pan to heat; When judging that described pan is cauldron or between cauldron and pannikin time, described electromagnetic oven heats described pan in normal heating mode.
Electromagnetic oven according to an embodiment of the invention, in the time judging that pan is pannikin, electromagnetic oven stops pan heating, judging that pan is cauldron or between cauldron and pannikin time, electromagnetic oven normally heats pan, avoid continuous Power Regulation in the time of the pan heating between cauldron and pannikin in prior art, the problem of interrupted heating.
According to one embodiment of present invention, described electromagnetic oven comprises: electromagnetic oven panel, described pan heating region is arranged on described electromagnetic oven panel, described multiple sensor setting contacts on described electromagnetic oven panel and with described pan, and/or is arranged on described electromagnetic oven panel and with described pan and does not contact.
Electromagnetic oven according to an embodiment of the invention, pan heating region is arranged on electromagnetic oven panel, can show intuitively pan heating region, be convenient to user according to pan heating region placing cooker, when sensor setting contacts on electromagnetic oven panel and with pan, owing to can directly touching pan bottom, the state of pan therefore can be detected more exactly; In the time that sensor is temperature sensor, when temperature sensor also can be arranged on and not contact on electromagnetic oven panel and with pan, by detecting the temperature of temperature indirect detection pan of electromagnetic oven panel.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 shows according to an embodiment of the invention the schematic flow diagram for the pan size determination methods of electromagnetic oven;
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 setting position schematic diagram of sensor according to an embodiment of the invention.
Detailed description of the invention
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.
A lot of details are set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
Fig. 1 shows according to an embodiment of the invention the schematic flow diagram for the pan size determination methods of electromagnetic oven.
As shown in Figure 1, according to an embodiment of the invention for the pan size determination methods of electromagnetic oven, comprise: step 102, it is obtaining step, in the time that pan is placed on the pan heating region on described electromagnetic oven, obtain the influence value of the multiple sensors for detection of described pan state of the diverse location setting in described heating region; Step 104, i.e. determining step, according to the influence value of described multiple sensors, judges the size of described pan.
In the time that pan is placed on the pan heating region on electromagnetic oven, due to varying in size of pan base diameter, therefore the influence value that is arranged on the sensor contacting from pan bottom in pan heating region is also different, therefore can judge by being arranged on the influence value of the multiple sensors in pan heating region the size of pan.
Particularly, can in pan heating region, arrange and judge the region of pannikin and the region that judges cauldron is set, at least one sensor is set in each region, by detecting the influence value of the sensor in zones of different, size to pan judges, due to can Real-time Obtaining by sensor to the state of pan, judge with the size to pan, therefore can avoid examining pot by pulse in correlation technique and be forbidden to cause electromagnetic oven to occur Power Regulation phenomenon, cause the problem to the interrupted heating of the pan between cauldron and pannikin.Use multiple sensors to detect the size of pan simultaneously, improved the accuracy of pan size detection, thereby electromagnetic oven can normally be worked.
Wherein, sensor can have multiple avatar, below introduces wherein two kinds of ways of realization:
Way of realization one:
According to one embodiment of present invention, described multiple sensor comprises multiple temperature sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor; Described obtaining step is specially: in the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects; Described determining step is specially: whether the difference that judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the first border circular areas owing to not touching pan, the temperature value therefore detecting is less than the temperature value that the temperature sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm, and the scheduled time can be 10 seconds.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, described determining step also comprises: when the difference of the temperature value that the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the second border circular areas owing to also having touched pan, the temperature value that the temperature value therefore detecting detects close to the temperature sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the temperature sensor on the circumference that temperature sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the temperature sensor in the first border circular areas.
Way of realization two:
According to one embodiment of present invention, described multiple sensor comprises multiple weight sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor; Described obtaining step is specially: in the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor; Described determining step is specially: whether the difference that judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the first border circular areas owing to not touching pan, the gravimetric value therefore detecting is less than the gravimetric value that the weight sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, described determining step also comprises: when the difference of the gravimetric value that the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the second border circular areas owing to also having touched pan, the gravimetric value that the gravimetric value therefore detecting detects close to the weight sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the weight sensor on the circumference that weight sensor in the second border circular areas be arranged on the first border circular areas and/or is 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 Figure 2, electromagnetic oven 200 according to an embodiment of the invention, comprise: multiple sensors (not shown in Fig. 2), are arranged on the diverse location place in the pan heating region of described electromagnetic oven 200, for detection of the state that is placed on the pan in described pan heating region; Acquiring unit 202, in the time that described pan is placed on described pan heating region, obtains the influence value of described multiple sensors; Judging unit 204, for the influence value of described multiple sensors of getting according to described acquiring unit 202, judges the size of described pan.
In the time that pan is placed on the pan heating region on electromagnetic oven 200, due to varying in size of pan base diameter, therefore be arranged on the sensor contacting from pan bottom in pan heating region also different, therefore can judge by being arranged on the influence value of the multiple sensors in pan heating region the size of pan.
Particularly, can in pan heating region, arrange and judge the region of pannikin and the region that judges cauldron is set, at least one sensor is set in each region, by detecting the influence value of the sensor in zones of different, size to pan judges, due to can Real-time Obtaining by sensor to the state of pan, judge with the size to pan, therefore can avoid in correlation technique examining pot and Power Regulation phenomenon appears in electromagnetic oven 200 by pulse, cause the problem to the interrupted heating of the pan between cauldron and pannikin.Use sensor to detect the size of pan simultaneously, can avoid the impact of the factor such as electromagnetic field and/or electromagnetic oven 200 operating voltages, improved the accuracy of testing result.
In the time that sensor is temperature sensor, can detect whether pan is pannikin by following scheme:
According to one embodiment of present invention, described multiple sensor comprises multiple temperature sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor; Described acquiring unit 202 specifically for: in the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects; Whether the difference that described judging unit 204 is arranged on specifically for: judgement the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the first border circular areas owing to not touching pan, the temperature value therefore detecting is less than the temperature value that the temperature sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
In the time that sensor is temperature sensor, can detect whether pan is cauldron by following scheme:
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, when the difference of the temperature value that described judging unit 204 also detects for: the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on temperature sensor on the circumference of the second border circular areas owing to also having touched pan, the temperature value that the temperature value therefore detecting detects close to the temperature sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the temperature sensor on the circumference that temperature sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the temperature sensor in the first border circular areas.
In the time that sensor is weight sensor, can detect whether pan is pannikin by following scheme:
According to one embodiment of present invention, described multiple sensor comprises multiple weight sensors; Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor; Described acquiring unit 202 specifically for: in the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor; Whether the difference that described judging unit 204 is arranged on specifically for: judgement the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
Specifically, the first predeterminable range can be the critical radius of standard pannikin, if the radius of pan is less than the first predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the first border circular areas owing to not touching pan, the gravimetric value therefore detecting is less than the gravimetric value that the weight sensor that is arranged in the first border circular areas detects.Wherein, the first predeterminable range can be 30mm.
In the time that sensor is weight sensor, can detect whether pan is cauldron by following scheme:
According to one embodiment of present invention, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, and wherein, described the second predeterminable range is greater than described the first predeterminable range, when the difference of the gravimetric value that described judging unit 204 also detects for: the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if, judge that described pan is as cauldron, otherwise, 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 greater than the second predeterminable range, in pan is placed on pan heating region time, be arranged on weight sensor on the circumference of the second border circular areas owing to also having touched pan, the gravimetric value that the gravimetric value therefore detecting detects close to the weight sensor being arranged in the second border circular areas.Wherein, the second predeterminable range can be 50mm, is arranged on the weight sensor on the circumference that weight sensor in the second border circular areas be arranged on the first border circular areas and/or is arranged on the weight sensor in the first border circular areas.
According to one embodiment of present invention, in the time judging that described pan is pannikin, described electromagnetic oven stops described pan to heat; When judging that described pan is cauldron or between cauldron and pannikin time, described electromagnetic oven heats described pan in normal heating mode.
In the time judging that pan is pannikin, electromagnetic oven stops pan heating, is judging that pan is cauldron or between cauldron and pannikin time, electromagnetic oven normally heats pan, avoid continuous Power Regulation in the time of the pan heating between cauldron and pannikin in prior art, the problem of interrupted heating.
According to one embodiment of present invention, described electromagnetic oven comprises: electromagnetic oven panel (not shown in Fig. 2), described pan heating region is arranged on described electromagnetic oven panel, described multiple sensor setting contacts on described electromagnetic oven panel and with described pan, and/or is arranged on described electromagnetic oven panel and with described pan and does not contact.
Pan heating region is arranged on electromagnetic oven panel, can show intuitively pan heating region, be convenient to user according to pan heating region placing cooker, when sensor setting contacts on electromagnetic oven panel and with pan, owing to can directly touching pan bottom, the state of pan therefore can be detected more exactly; In the time that sensor is temperature sensor, when temperature sensor also can be arranged on and not contact on electromagnetic oven panel and with pan, by detecting the temperature of temperature indirect detection pan of electromagnetic oven panel.
In sum, can there is following set-up mode for detection of the setting position of multiple sensors of pan state:
Embodiment one:
As shown in Figure 3A, central spot in pan heating region 304 on electromagnetic oven panel 302 arranges a sensor 306, and taking central point as the center of circle, the first predeterminable range arranges at least one sensor on the circumference 312 of the first border circular areas of radius, in Fig. 3 A, be provided with two sensors, i.e. sensor 308, sensor 310.Wherein, the first predeterminable range can be the critical radius of standard pannikin, as being 30mm, taking to pan whether as pannikin is judged.
Embodiment two:
As shown in Figure 3 B, central spot in pan heating region 304 on electromagnetic oven panel 302 arranges a sensor 306, and taking central point as the center of circle, the first predeterminable range arranges at least one sensor on the circumference 312 of the first border circular areas of radius, in Fig. 3 A, be provided with two sensors, be sensor 308, sensor 310, and a sensor 314 is set in the inside of the first border circular areas.Wherein, the first predeterminable range can be the critical radius of standard pannikin, as being 30mm, taking to pan whether as pannikin is judged.
Certainly, the sensor that is arranged on the first border circular areas inside can be any amount, and position also can arrange arbitrarily, as can be only sensor 314 be set in the first border circular areas inside.
Embodiment three:
As shown in Figure 3 C, on the basis of the set-up mode of Fig. 3 A, taking central point as the center of circle, the second predeterminable range arranges at least one sensor on the circumference 316 of the second border circular areas of radius, only on the circumference 316 of the second border circular areas, is provided with a sensor 318 in Fig. 3 C.Wherein, the first predeterminable range can be the critical radius of standard pannikin, as being 30mm, taking to pan whether as pannikin is judged, the second predeterminable range can be the critical radius of standard cauldron, as being 50mm, taking to pan whether as cauldron, and whether between cauldron and pannikin, judge.
Certainly, for the size to pan more accurately judges, can in pan heating region, multiple sensors be set respectively different distance place, distance pan heating region center, the size of pan is judged according to the numerical value detecting apart from the sensor at different distance place, pan heating region center.
In addition, the application's technical scheme can also be in conjunction with the mode of the pulse inspection pot proposing in correlation technique, more accurately to detect the size of pan.Particularly, can tentatively determine after the size of pan according to the mode of pulse inspection pot, then by the application's technical scheme, result of determination done to further checking.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of new pan for electromagnetic oven size judgement scheme, can avoid using the mode of pulse inspection pot to judge when pan is big or small in correlation technique, be subject to the impact of the factor such as electromagnetic field and/or electromagnetic oven operating voltage, improved 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 a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. for a pan size determination methods for electromagnetic oven, it is characterized in that, comprising:
Obtaining step, in the time that pan is placed on the pan heating region on described electromagnetic oven, obtains the influence value of the multiple sensors for detection of described pan state of the diverse location setting in described heating region;
Determining step, according to the influence value of described multiple sensors, judges the size of described pan.
2. the size of the pan for electromagnetic oven determination methods according to claim 1, is characterized in that, described multiple sensors comprise multiple temperature sensors;
Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor;
Described obtaining step is specially:
In the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects;
Described determining step is specially:
Whether the difference that judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
3. the size of the pan for electromagnetic oven determination methods according to claim 2, it is characterized in that, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, wherein, described the second predeterminable range is greater than described the first predeterminable range;
Described determining step also comprises:
When the difference of the temperature value that the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if so, judge that described pan is as cauldron; Otherwise, judge that described pan is between cauldron and pannikin.
4. the size of the pan for electromagnetic oven determination methods according to claim 1, is characterized in that, described multiple sensors comprise multiple weight sensors;
Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor;
Described obtaining step is specially:
In the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor;
Described determining step is specially:
Whether the difference that judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
5. the size of the pan for electromagnetic oven determination methods according to claim 4, it is characterized in that, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, wherein, described the second predeterminable range is greater than described the first predeterminable range;
Described determining step also comprises:
When the difference of the gravimetric value that the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if so, judge that described pan is as cauldron; Otherwise, judge that described pan is between cauldron and pannikin.
6. an electromagnetic oven, is characterized in that, comprising:
Multiple sensors, are arranged on the diverse location place in the pan heating region of described electromagnetic oven, for detection of the state that is placed on the pan in described pan heating region;
Acquiring unit, in the time that described pan is placed on described pan heating region, obtains the influence value of described multiple sensors;
Judging unit, for the influence value of described multiple sensors of getting according to described acquiring unit, judges the size of described pan.
7. electromagnetic oven according to claim 6, is characterized in that, described multiple sensors comprise multiple temperature sensors;
Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described temperature sensor;
Described acquiring unit specifically for:
In the time that described pan is placed on described pan heating region, with predetermined power to the described pan heating scheduled time after, obtain the temperature value that the temperature sensor that is arranged in described the first border circular areas and on the circumference of described the first border circular areas detects;
Described judging unit specifically for:
Whether the difference that judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the first predetermined threshold, if so, judge that described pan is as pannikin.
8. electromagnetic oven according to claim 7, it is characterized in that, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described temperature sensor on the circumference of the second border circular areas of radius, wherein, described the second predeterminable range is greater than described the first predeterminable range;
Described judging unit also for:
When the difference of the temperature value that the temperature value that the arbitrary temperature sensor in judgement is arranged on described the first border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the temperature value that temperature value that the arbitrary temperature sensor in described the second border circular areas detects and the arbitrary temperature sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the second predetermined threshold, if so, judge that described pan is as cauldron; Otherwise, judge that described pan is between cauldron and pannikin.
9. electromagnetic oven according to claim 6, is characterized in that, described multiple sensors comprise multiple weight sensors;
Wherein, be the center of circle at the center taking described pan heating region, in the first border circular areas that the first predeterminable range is radius, and on the circumference of described the first border circular areas, be respectively provided to a few described weight sensor;
Described acquiring unit specifically for:
In the time that described pan is placed on described pan heating region, obtain be arranged in described the first border circular areas and the circumference of described the first border circular areas on the gravimetric value that detects of weight sensor;
Described judging unit specifically for:
Whether the difference that judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is more than or equal to the 3rd predetermined threshold, if so, judge that described pan is as pannikin.
10. electromagnetic oven according to claim 9, it is characterized in that, be the center of circle at the center taking described pan heating region, the second predeterminable range is to be respectively provided to a few described weight sensor on the circumference of the second border circular areas of radius, wherein, described the second predeterminable range is greater than described the first predeterminable range;
Described judging unit also for:
When the difference of the gravimetric value that the gravimetric value that the arbitrary weight sensor in judgement is arranged on described the first border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the first border circular areas detect is less than described the first predetermined threshold, whether the difference that further judgement is arranged on the gravimetric value that gravimetric value that the arbitrary weight sensor in described the second border circular areas detects and the arbitrary weight sensor being arranged on the circumference of described the second border circular areas detect is less than or equal to the 4th predetermined threshold, if so, judge that described pan is as cauldron; Otherwise, judge that described pan is between cauldron and pannikin.
11. according to the electromagnetic oven described in any one in claim 6 to 10, it is characterized in that, in the time judging that described pan is pannikin, described electromagnetic oven stops described pan to heat; When judging that described pan is cauldron or between cauldron and pannikin time, described electromagnetic oven heats described pan in normal heating mode.
12. according to the electromagnetic oven described in any one in claim 6 to 10, it is characterized in that, described electromagnetic oven comprises:
Electromagnetic oven panel, described pan heating region is arranged on described electromagnetic oven panel, and described multiple sensor settings contact on described electromagnetic oven panel and with described pan, and/or are arranged on described electromagnetic oven panel and with described pan and do not contact.
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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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| 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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| 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 |
| CN107816935A (en) * | 2016-09-14 | 2018-03-20 | 佛山市顺德区美的电热电器制造有限公司 | A kind of method and device for detecting pan and deforming upon |
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| CN103939960B (en) | 2017-01-18 |
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