CN109386853B - Induction cooker and pot cover state detection method and control method thereof - Google Patents
Induction cooker and pot cover state detection method and control method thereof Download PDFInfo
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- CN109386853B CN109386853B CN201810836087.4A CN201810836087A CN109386853B CN 109386853 B CN109386853 B CN 109386853B CN 201810836087 A CN201810836087 A CN 201810836087A CN 109386853 B CN109386853 B CN 109386853B
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- 230000006698 induction Effects 0.000 title claims abstract description 115
- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000005484 gravity Effects 0.000 claims abstract description 79
- 238000010411 cooking Methods 0.000 claims abstract description 18
- 230000005291 magnetic effect Effects 0.000 claims description 34
- 230000005672 electromagnetic field Effects 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910052573 porcelain Inorganic materials 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/06—Lids or covers for cooking-vessels
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electric Stoves And Ranges (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention provides an induction cooker and a pot cover state detection method and a control method thereof. The induction cooker of the present invention comprises: the detection device and a second controller electrically connected with the detection device; the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed, and the detection device is positioned on the pot cover; the detection device is used for detecting the state of the pot cover and sending an electric signal to the second controller; the second controller is used for judging that the pot cover is vertically placed when the electric signal meets a first preset condition; the second controller is also used for judging that the pot cover is horizontally placed when the electric signal meets a second preset condition, and the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition. The induction cooker provided by the invention is convenient to operate for detecting the state of the cooker cover, is not easy to misjudge, and can accurately control the cooking process.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an induction cooker and a pot cover state detection method and a control method thereof.
Background
With the continuous progress of the living standard of people, an electromagnetic oven cooker becomes a widely used cooking appliance, the electromagnetic oven is an electric cooking appliance made by utilizing the electromagnetic induction heating principle, and comprises a high-frequency induction coil panel (namely an excitation coil), a control unit, a ferromagnetic material pot bottom cooker and the like.
The method for judging the position of the pot cover with accurate temperature control in the current market is to judge through pot cover temperature measurement data when an induction cooker is heated, when the induction cooker is heated, a pot cover temperature measurement system measures that the temperature of water vapor and air in a pot is higher and higher under normal conditions, the pot cover is shown to be on the pot body, and when the temperature detected by the pot cover becomes lower or unchanged within a period of time, the pot cover of the induction cooker is not placed on the pot body.
However, the above-mentioned manner of measuring temperature data is greatly influenced by the external temperature, and a user may add cold water or ice midway during the cooking process, so that the temperature in the pot becomes low, which causes erroneous judgment that the pot cover is not on the pot body, and when the temperature in the pot is low, the detection of temperature change of the pot cover is difficult, which is easy to perform erroneous judgment, thereby causing a problem that the cooking process cannot be accurately controlled.
Disclosure of Invention
In order to solve at least one problem related to misjudgment that a pot cover is not on a pot body in the cooking process of an induction cooker in the background art, the invention provides an induction cooker and a pot cover state detection method and a control method thereof.
In a first aspect, the present invention provides an induction cooker comprising: electromagnetism stove and pan, be equipped with first controller in the electromagnetism stove, the pan includes the pot body and pot cover, and electromagnetism stove cooking utensil still includes: the detection device and a second controller electrically connected with the detection device;
the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed, and the detection device is positioned on the pot cover; the detection device is used for detecting the state of the pot cover and sending an electric signal to the second controller;
the second controller is used for judging that the pot cover is vertically placed when the electric signal meets a first preset condition;
the second controller is also used for judging that the pot cover is horizontally placed when the electric signal meets a second preset condition, and the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition.
The pot cover with the supporting part is arranged, the detection device is positioned on the pot cover and electrically connected with the second controller, the state of the pot cover is detected by the detection device and converted into an electric signal, the electric signal is sent to the second controller, and the second controller judges that the pot cover is vertically placed when the electric signal meets a first preset condition; and the second controller judges that the pot cover is horizontally placed when the electric signal meets a second preset condition, wherein the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an optional mode, the cooker of the induction cooker provided by the invention further comprises an electromagnetic field detection device, wherein the electromagnetic field detection device is connected with the second controller and is used for detecting the magnetic field intensity between the cooker cover and the induction cooker;
the second controller is used for judging that the pot cover is not positioned on the heated pot body when the magnetic field intensity detected by the electromagnetic field detection device is smaller than a preset threshold value;
the second controller is also used for judging that the pot cover is on the heated pot body when the magnetic field intensity detected by the electromagnetic field detection device is greater than or equal to a preset threshold value.
As an alternative, the invention provides the electromagnetic oven cooker, wherein the electric signal comprises electric signals in three orthogonal directions of the detection device.
In an alternative mode, the detection device of the induction cooker provided by the invention is a gravity sensor, and the gravity sensor is positioned in the support part.
In an alternative embodiment, the second controller is located on the lid.
As an optional mode, the electromagnetic oven cooker further comprises an alarm device, and the alarm device is connected with the second controller.
In a second aspect, the invention further provides a method for detecting the state of the lid in the electromagnetic oven cooker, which is applied to the electromagnetic oven cooker,
the method for detecting the state of the cooker cover in the induction cooker comprises the following steps: the second controller receives the electric signal sent by the detection device, and the electric signal is correspondingly changed along with the state of the pot cover;
when the electric signal meets a first preset condition, judging that the pot cover is vertically placed;
when the electric signal meets the second preset condition, the horizontal placement of the pot cover is judged, and the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition.
Detecting the position of the pot cover through the detection device, converting the position into an electric signal and sending the electric signal to the second controller, and judging that the pot cover is vertically placed by the second controller when the electric signal meets a first preset condition; and the second controller judges that the pot cover is horizontally placed when the electric signal meets a second preset condition. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an optional mode, the method for detecting the state of the pot cover in the electromagnetic oven cooker further comprises the following steps: the electrical signals include electrical signals in three orthogonal directions of the detection device.
As an optional mode, the method for detecting the state of the pot cover in the electromagnetic oven cooker, after judging that the pot cover is horizontally placed, further comprises:
the electromagnetic field detection device detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a preset threshold value, judging that the pot cover is on the heated pot body;
and when the magnetic field intensity between the pot cover and the induction cooker is smaller than a preset threshold value, judging that the pot cover is not on the heated pot body.
In a third aspect, the invention further provides a control method of the electromagnetic oven cooker, which is applied to the electromagnetic oven cooker,
the control method comprises the following steps: the second controller detects the electric signal sent by the receiving device, and the electric signal changes correspondingly along with the state of the pot cover;
when the electric signal meets a first preset condition, judging that the pot cover is vertically placed, and controlling the induction cooker to adopt a conventional mode by the first controller;
when the electric signal meets a second preset condition, the horizontal placement of the cooker cover is judged, then the second controller controls the induction cooker to adopt a precise control mode, and the height of the gravity center of the cooker cover under the first preset condition is different from that under the second preset condition.
The position of the pot cover is detected by the detection device and converted into a parallel electric signal to be sent to the second controller, when the electric signal meets a first preset condition, the second controller judges that the pot cover is vertically placed, and then the first controller controls the induction cooker to adopt a conventional mode; and when the electric signal meets a second preset condition, the second controller judges that the pot cover is horizontally placed, and controls the induction cooker to adopt a precise control mode. So that the induction cooker has different heating controls.
As an optional mode, the control method of the electromagnetic oven cooker provided by the invention has the advantages that after the pan cover is judged to be horizontally arranged,
further comprising: the electromagnetic field detection device detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body, and controlling the induction cooker to adopt a fine control mode by a second controller;
when the magnetic field intensity between the pot cover and the induction cooker is smaller than a second preset threshold value, the pot cover is judged not to be on the heated pot body, and then the first controller controls the induction cooker to adopt a conventional mode.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an induction cooker according to an embodiment of the present invention;
FIG. 2 is a connection diagram of a gravity sensor, an electromagnetic field detection device and a second controller in the cooker of the induction cooker according to the first embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of another method for detecting a lid state in an induction cooker according to a second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention;
fig. 6 is a flowchart illustrating another control method for an induction cooker according to a third embodiment of the present invention.
Description of reference numerals:
1, an induction cooker;
2, pot cover;
3, a pot body;
4-a pot cover handle capable of standing;
5-a detection device;
6-a second controller;
7-electromagnetic field detection device.
Detailed Description
Example one
Fig. 1 is a schematic structural diagram of an induction cooker according to an embodiment of the present invention; fig. 2 is a connection diagram of a gravity sensor, an electromagnetic field detection device and a second controller in an induction cooker according to an embodiment of the present invention. As shown in fig. 1 and 2, the present embodiment provides an induction cooker including: the induction cooker comprises an induction cooker 1 and a cooker, wherein a first controller is arranged in the induction cooker 1, the cooker comprises a cooker body 3 and a cooker cover 2,
specifically, the induction cooker further comprises: a detection device 5 and a second controller 6 electrically connected to the detection device 5;
the pot cover 2 has a supporting portion for supporting the pot cover 2 when the pot cover 2 is vertically placed, and in a specific implementation manner, the supporting portion may be a pot cover handle 4 which can be vertically placed on the pot cover 2, but the embodiment is not limited thereto;
the detecting device 5 is located on the pot cover 2, and the detecting device 5 is used for detecting the position of the pot cover 2 and sending an electric signal to the second controller 6, in particular, when the detecting device 5 is implemented, the detecting device 5 may be located on the outer surface of the pot cover 2, the detecting device 5 may also be located on a supporting portion of the pot cover 2, or the detecting device 5 may be located on the pot cover handle 4 which can be erected, and the embodiment is not limited herein;
the detection device 5 is used for detecting the position of the pot cover 2 and sending an electric signal to the second controller 6;
the second controller 6 is used for judging that the pot cover 2 is vertically placed when the electric signal meets a first preset condition;
the second controller 6 is further configured to determine that the pot cover 2 is horizontally placed when the electrical signal meets a second preset condition, wherein the height of the center of gravity of the pot cover 2 is different between the first preset condition and the second preset condition.
It should be noted that the position of the center of gravity of an object, and the position of the center of gravity of an object having a uniformly distributed mass (uniform object) are only related to the shape of the object. A regularly shaped object has its center of gravity at the geometric center. Most pot covers 2 have regular shapes, after the shape of the pot covers 2 is determined, the gravity centers of the pot covers 2 are also determined, the height of the gravity centers when the pot covers 2 are horizontally placed (namely, the vertical distance between the gravity centers of the pot covers 2 and the operation table top) is smaller than the height of the gravity centers when the pot covers 2 are vertically placed (namely, the vertical distance between the gravity centers of the pot covers 2 and the operation table top). That is, the first preset condition is: when the detection device 5 detects that the pot cover 2 is vertically placed, the detection device 5 sends an electric signal to the second controller 6, and the second preset condition is as follows: when the detection device 5 detects that the pot cover 2 is horizontally placed, the detection device 5 sends an electric signal to the second controller 6.
Specifically, the theory of operation of electromagnetism stove 1 is that coil panel in the first controller control electromagnetism stove in through electromagnetism stove 1 produces alternating magnetic field, and when placing the pot body 3 that contains iron on the panel of electromagnetism stove 1, pot body 3 cuts alternating magnetic field's magnetic line of force and produces alternating current, the vortex promptly, this vortex enables the high-speed random motion of the iron molecule of pot body 3 and collides the friction mutually and produces heat energy, makes the pot body 3 generate heat fast to heat and cook food.
In the induction cooker provided by the embodiment, the pot cover 2 is provided with a supporting part, when the pot cover 2 is vertically placed, the pot cover 2 is supported by the supporting part, the detection device 5 is positioned on the pot cover 2, the detection device 5 is electrically connected with the second controller 6, the position of the pot cover 2 is detected by the detection device 5 and converted into an electrical signal, and the electrical signal is sent to the second controller 6, and when the electrical signal meets a first preset condition, the second controller 6 judges that the pot cover 2 is vertically placed; the second controller 6 judges that the pot cover 2 is horizontally placed when the electric signal meets a second preset condition, wherein the height of the gravity center of the pot cover 2 is different between the first preset condition and the second preset condition.
Specifically, because the focus of pot cover 2 is different with the height under the second preset condition under the first preset condition, detection device 5 detects the signal of telecommunication of pot cover 2's position, second controller 6 judges that pot cover 2 is vertical when the signal of telecommunication accords with first preset condition, that is to say, first preset condition is when pot cover 2 is vertical to be placed, detection device 5 detects the signal of telecommunication of pot cover 2's position, second controller 6 judges that pot cover 2 level is placed when the signal of telecommunication accords with the second preset condition, that is to say, when the second preset condition is pot cover 2 level and places, detection device 5 detects the signal of telecommunication of pot cover 2's position.
According to the induction cooker provided by the embodiment, the cooker cover with the supporting part is arranged, the detection device is positioned on the cooker cover and electrically connected with the second controller, the state of the cooker cover is detected by the detection device and converted into an electric signal, and the electric signal is sent to the second controller, and the second controller judges that the cooker cover is vertically placed when the electric signal meets a first preset condition; and the second controller judges that the pot cover is horizontally placed when the electric signal meets a second preset condition, wherein the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an alternative embodiment of the present invention, there is provided an induction cooker,
the electromagnetic field detection device 7 is connected with the second controller 6, and the electromagnetic field detection device 7 is used for detecting the magnetic field intensity between the pot cover 2 and the induction cooker 1;
the second controller 6 is also used for judging that the pot cover 2 is on the heated pot body 3 when the magnetic field intensity detected by the electromagnetic field detection device 7 is greater than or equal to a preset threshold value.
In a specific implementation, the electromagnetic field detection device 7 may be located in the induction cooker 1, at this time, the electromagnetic field detection device 7 is wirelessly connected with the second controller 6, and the electromagnetic field detection device 7 may also be located in the vertical lid handle 4 or the lid 2, at this time, the electromagnetic field detection device 7 is electrically connected with the second controller 6.
Specifically, when the pot cover 2 is horizontally placed, there are two cases, the first case, in which the pot cover 2 is horizontally placed on the pot body 3. In the second case, the lid 2 is not placed on the body 3, although it is placed horizontally, for example the lid 2 is placed horizontally on a table or a kitchen worktop. Therefore, after the pot cover 2 is determined to be horizontally placed, it is also required to determine that the pot cover 2 is horizontally placed on the heating pot body 3.
It should be noted that when the pan body 3 is not heated, i.e. the induction cooker 1 is not in use, it is not necessary to control the induction cooker. Therefore, when the horizontal placement of the pot cover 2 is determined, the pot cover 2 needs to be determined to be horizontally placed on the heated pot body 3. The cooker cover 2 is horizontally arranged on the cooker body 3 and the cooker cover 2 is horizontally arranged but not on the cooker body 3, and the magnetic field intensity between the cooker cover 2 and the induction cooker 1 is different. Therefore, whether the pot lid 2 is on the heated pot body 3 is judged by presetting a threshold value.
As an alternative embodiment of the present invention, there is provided an induction cooker,
the electrical signals comprise electrical signals in three orthogonal directions of the detection means 5.
Further, detection device 5 is the gravity inductor, and the gravity inductor is located the supporting part, can set up the gravity inductor on can vertical pot cover handle 4 during concrete implementation, through setting up the gravity inductor in can vertical pot cover handle 4, avoids the gravity inductor to receive pollution such as dust, steam to keep the sensitivity of gravity inductor.
The gravity sensor belongs to the sensor technology, works according to the principle of piezoelectric effect, specifically, the piezoelectric effect is that external force applied to a crystal by a heteropolar crystal without a symmetric center causes the crystal to deform, and an electric field is established in the crystal, and the phenomenon that a medium is polarized due to the action of mechanical force is called piezoelectric effect. The gravity sensor is a cantilever type displacement device made of an elastic sensitive element, and an energy storage spring made of the elastic sensitive element is arranged in the gravity sensor to drive an electric contact, so that the conversion from gravity change to an electric signal is completed. That is, the gravity sensor utilizes the characteristic that the element is deformed due to gravity inside the gravity sensor, and the element deformation generates voltage, and the relationship between the voltage and the gravity is calculated, so that the gravity corresponding electric signal can be output.
The gravity sensors are different in position, and electric signals of the gravity sensors in three orthogonal directions of an X axis, a Y axis and a Z axis in a space coordinate system are different. That is, the deformation of the gravity sensor in three orthogonal directions of the X-axis, the Y-axis and the Z-axis in the space coordinate system is different. The gravity sensor is positioned on the pot cover 2, the pot cover 2 is used as a carrier for supporting the gravity sensor, when the pot cover 2 is horizontally or vertically placed, the height of the gravity center of the pot cover 2 is different, and the deformation of the gravity sensor in three orthogonal directions of an X axis, a Y axis and a Z axis in a space coordinate system is different. Therefore, the gravity sensor detects an electric signal of the position of the pot cover 2, and the second controller 6 judges that the pot cover 2 is vertically placed when the electric signal meets a first preset condition; when the electric signal meets a second preset condition, the second controller 6 judges that the pot cover 2 is horizontally placed, and can understand that the position of the pot cover 2 is different, the deformation of the gravity sensor in three orthogonal directions of the X axis, the Y axis and the Z axis in the space coordinate system is different, the electric signals of the gravity sensor in three orthogonal directions of the X axis, the Y axis and the Z axis in the space coordinate system are different, the gravity sensor sends different electric signals to the second controller 6 (namely, the gravity sensor sends the electric signals of the gravity sensor in three orthogonal directions of the X axis, the Y axis and the Z axis in the space coordinate system to the second controller 6, and the second controller 6 obtains the electric signal in the X axis direction, the electric signal in the Y axis direction and the electric signal in the Z axis direction sent by the gravity sensor), and judges the position of the pot cover 2 through the second controller 6.
It should be noted that the most interesting to the user about the state of the pot cover 2 is that the pot cover 2 is horizontally arranged on the heated pot body 3 or vertically arranged on a table top or an operation table. Therefore, under the first preset condition and the second preset condition, which are respectively the conditions that the gravity center height of the pot cover 2 is different, the first preset condition and the second preset condition represent electric signals of different states of the gravity sensor. The optional position of pot cover 2 can be installed to the gravity inductor, the position that the pot cover 2 was installed to the same gravity inductor is different, when 2 levels of pot cover or vertical setting, the deformation that the gravity inductor is arranged in three orthogonal directions of X axle, Y axle and Z axle in the space coordinate system is different, the signal of telecommunication is also different promptly, the same position on pot cover 2 is installed to different gravity inductors, when 2 levels of pot cover or vertical setting, the gravity inductor is arranged in the three orthogonal directions's of X axle, Y axle and Z axle in the space coordinate system the signal of telecommunication is different. Therefore, the first preset condition and the second preset condition have no fixed electric signal value, the first preset condition and the second preset condition can be a preset database, the second controller 6 is connected with the database, the first preset condition in the database is that when the pot cover 2 is vertically placed, the gravity sensors of the common type are arranged at the same position on the pot cover 2, and different gravity sensors are arranged at the same position on the pot cover 2, all the gravity sensors are positioned at the electric signal values in three orthogonal directions of an X axis, a Y axis and a Z axis in a space coordinate system, and the second preset condition in the database is that when the pot cover 2 is horizontally arranged, the gravity sensors of the common type are arranged at the same position on the pot cover 2, and different gravity sensors are arranged at the same position on the pot cover 2, and all the gravity sensors are positioned on the electric signal values of three orthogonal directions of an X axis, a Y axis and a Z axis in a space coordinate system. For example, a gravity sensor of a certain type is mounted on the pot cover 2, and at this time, when the pot cover 2 is horizontally placed, the X-axis direction electrical signal and the Y-axis direction electrical signal are both 0, and the Z-axis direction electrical signal is 9.8, that is, the gravity sensor does not deform in the X-axis direction and the Y-axis direction, and the Z-axis direction deforms; when the pot cover 2 is horizontally reversely placed, the electric signal in the X-axis direction and the electric signal in the Y-axis direction are both 0, and the electric signal in the Z-axis direction is-9.8; when the pot cover 2 is vertically placed, the electric signal in the Z-axis direction is equal to 0, the electric signal in the X-axis direction and the electric signal in the Y-axis direction are respectively 0 and 9.8, or the electric signal in the X-axis direction and the electric signal in the Y-axis direction are respectively 0 and-9.8.
According to the electromagnetic oven cooker provided by the embodiment, the gravity sensor sends the electric signals of the gravity sensor in the X-axis, Y-axis and Z-axis orthogonal directions in the space coordinate system to the second controller, so that the state of the cooker cover is judged, the misjudgment of the state of the cooker cover is not easy to occur, and the cooking process can be accurately controlled.
As an alternative embodiment of the present invention, there is provided an induction cooker,
the second controller 6 is positioned on the pot cover 2. Specifically, the second controller 6 may be a Micro Control Unit (MCU) in the lid 2 in the prior art.
As an optional implementation manner, the electromagnetic oven cooker provided in this embodiment further includes an alarm device, the alarm device is connected to the second controller 6, when the lid 2 is not on the heated pot body 3, the second controller 6 sends an alarm (sound or alarm light), and the user can be reminded by the alarm, so that the user can cover the lid 2 on the heated pot body 3.
As an alternative embodiment, the present embodiment provides the electromagnetic oven cooker, wherein the second controller 6 is wirelessly connected with the first controller on the electromagnetic oven 1.
Specifically, the cooker cover 2 is provided with a first wireless transceiver connected with the second controller 6, and the induction cooker 1 is provided with a second wireless transceiver connected with the first controller. After the pot cover 2 is judged to be on the heated pot body 3, the second controller 6 sends a control electric signal to the first controller through the first wireless transceiver, and the second wireless transceiver is used for receiving the control electric signal, so that the first controller determines the heating power of the induction cooker 1 according to the control electric signal.
Example two
Fig. 3 is a schematic flow chart of a method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention. The method for detecting the state of the pot cover in the induction cooker provided by the embodiment is applied to a scene of cooking food by using the induction cooker provided by the embodiment.
Specifically, the induction cooker includes: electromagnetism stove 1 and pan are equipped with first controller in the electromagnetism stove 1, and the pan includes the pot body 3 and pot cover 2, and the electromagnetism stove cooking utensil still includes: a detection device 5 and a second controller 6 electrically connected to the detection device 5;
the pot cover 2 has a supporting portion for supporting the pot cover 2 when the pot cover 2 is vertically placed, and in a specific implementation manner, the supporting portion may be a pot cover handle 4 which can be vertically placed on the pot cover 2, but the embodiment is not limited thereto;
the detecting device 5 is located on the pot cover 2, and the detecting device 5 is used for detecting the position of the pot cover 2 and sending an electric signal to the second controller 6, in particular, when the detecting device 5 is implemented, the detecting device 5 may be located on the outer surface of the pot cover 2, the detecting device 5 may also be located on a supporting portion of the pot cover 2, or the detecting device 5 may be located on the pot cover handle 4 which can be erected, and the embodiment is not limited herein;
the detection device 5 is used for detecting the position of the pot cover 2 and sending an electric signal to the second controller 6;
the second controller 6 is used for judging that the pot cover 2 is vertically placed when the electric signal meets a first preset condition;
the second controller 6 is further configured to determine that the pot cover 2 is horizontally placed when the electrical signal meets a second preset condition, wherein the height of the center of gravity of the pot cover 2 is different between the first preset condition and the second preset condition.
Specifically, as shown in fig. 3, the method for detecting the state of the lid in the cooker of the induction cooker provided by the embodiment includes:
s101, the second controller 6 receives an electric signal sent by the detection device 5, and the electric signal changes correspondingly along with the position of the pot cover 2; if the electrical signal meets the first preset condition, step 102 is executed, and if the electrical signal meets the second preset condition, step 103 is executed, wherein the height of the gravity center of the pot cover 2 under the first preset condition is different from the height of the gravity center under the second preset condition.
S102, when the electric signal meets a first preset condition, judging that the pot cover 2 is vertically placed;
s103, when the electric signal meets a second preset condition, the pot cover 2 is judged to be horizontally placed.
According to the pot cover state detection method in the induction cooker, the position of the pot cover is detected through the detection device and converted into the parallel electric signal to be sent to the second controller, and the second controller judges that the pot cover is vertically placed when the parallel electric signal meets the first preset condition; and the second controller judges that the pot cover is horizontally placed when the electric signal meets a second preset condition. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
When the pot cover 2 is horizontally placed, there are two situations, the first situation, the pot cover 2 is horizontally placed on the pot body 3. In the second case, the lid 2 is not placed on the body 3, although it is placed horizontally, for example the lid 2 is placed horizontally on a table or a kitchen worktop. Therefore, after the pot cover 2 is determined to be horizontally placed, it is also required to determine that the pot cover 2 is horizontally placed on the heating pot body 3. Fig. 4 is a schematic flow chart of another method for detecting a lid state in an induction cooker according to a second embodiment of the present invention. As shown in fig. 4, the method for detecting the state of the lid in the cooker of the induction cooker according to the present embodiment further includes, after determining that the lid 2 is horizontally placed in the second embodiment:
s201, detecting the magnetic field intensity between the pot cover 2 and the induction cooker 1 by the electromagnetic field detection device 7; if the magnetic field intensity between the cooker lid 2 and the electromagnetic oven 1 is greater than or equal to the preset threshold, step 202 is executed, and if the magnetic field intensity between the cooker lid 2 and the electromagnetic oven 1 is less than the preset threshold, step 203 is executed.
S202, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is larger than or equal to a preset threshold value, judging that the pot cover 2 is on the heated pot body 3.
S202, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is smaller than a preset threshold value, judging that the pot cover 2 is not on the heated pot body 3.
After the pot cover 2 is judged not to be on the heated pot body 3, the second controller 6 sends out an alarm electric signal. An alarm (sound or alarm lamp) is given by the second controller 6 to remind the user so that the user covers the pot cover 2 on the heated pot body 3.
As an optional embodiment of the present invention, the method for detecting the state of the lid in the cooker of the induction cooker according to the present invention is that the second controller 6 sends an alarm signal after determining that the lid 2 is not on the heated pot 3. An alarm (sound or alarm lamp) is given by the second controller 6, and the user can be reminded by the alarm, so that the user can cover the pot cover 2 on the heated pot body 3.
As an optional implementation manner of the present invention, the method for detecting a state of a lid in an induction cooker according to the present invention further comprises: the electrical signals comprise electrical signals in three orthogonal directions of the detection means 5.
Specifically, the principle of the gravity sensor, i.e., the description of the first preset condition and the second preset condition, is described in detail in the above embodiments, which is not repeated herein.
According to the pot cover state detection method in the induction cooker, the gravity sensor sends the electric signals of the gravity sensor in the X-axis, Y-axis and Z-axis orthogonal directions in the space coordinate system to the second controller, so that the state of the pot cover is judged, misjudgment of the state of the pot cover is not prone to occur, and the cooking process can be accurately controlled.
EXAMPLE III
FIG. 5 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention; fig. 6 is a flowchart illustrating another control method for an induction cooker according to a third embodiment of the present invention. As shown in fig. 5, the control method of the induction cooker provided by the present embodiment is applied to a scenario in which food is cooked by using the induction cooker provided by the above embodiment.
Specifically, as shown in fig. 6, the method for detecting the state of the lid in the cooker of the induction cooker provided by the embodiment includes:
s301, the second controller 6 receives an electric signal sent by the detection device 5, and the electric signal changes correspondingly along with the position of the pot cover 2; if the electrical signal meets the first predetermined condition, step 302 is executed, and if the electrical signal meets the second predetermined condition, step 303 is executed, wherein the height of the center of gravity of the pot cover 2 under the first predetermined condition is different from the height of the center of gravity under the second predetermined condition.
S302, when the electric signal meets a first preset condition, the pot cover 2 is judged to be vertically placed, and the first controller controls the induction cooker 1 to adopt a conventional mode.
And S303, when the electric signal meets a second preset condition, judging that the pot cover 2 is horizontally placed, and controlling the induction cooker 1 to adopt a precise control mode by the second controller 6.
Specifically, as the cooker cover 2 is not arranged on the cooker body 3, the electromagnetic oven 1 adopts a conventional mode, and the conventional mode is that the temperature of the electromagnetic oven 1 is judged to be measured by an NTC (negative temperature coefficient) at the lower part of a porcelain plate of the electromagnetic oven 1, and no anti-overflow judgment is carried out. Because the pot cover 2 is on the pot body 3, consequently, electromagnetism stove 1 adopts the accurate control mode, and the accurate control mode of electromagnetism stove 1 does, and temperature judgement and/or anti-overflow are judged and are accomplished through the second controller 6 of pot cover 2 to through the first controller of wireless communication with data transfer electromagnetism stove 1, through the heating temperature of first controller control electromagnetism stove 1.
According to the control method of the induction cooker, the position of the cooker cover is detected through the detection device and converted into an electric signal, and the electric signal is sent to the second controller, when the electric signal meets a first preset condition, the second controller judges that the cooker cover is vertically placed, and then the first controller controls the induction cooker to adopt a conventional mode; and when the electric signal meets a second preset condition, the second controller judges that the pot cover is horizontally placed, and controls the induction cooker to adopt a precise control mode. So that the induction cooker has different heating controls.
As shown in fig. 6, the method for controlling an induction cooker according to this embodiment further includes, after determining that the lid 2 is horizontally placed according to the third embodiment:
s401, detecting the magnetic field intensity between the pot cover 2 and the induction cooker 1 by the electromagnetic field detection device 7; if the magnetic field strength between the cooker lid 2 and the electromagnetic oven 1 is greater than or equal to the preset threshold, step 402 is executed, and if the magnetic field strength between the cooker lid 2 and the electromagnetic oven 1 is less than the preset threshold, step 403 is executed.
S402, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is larger than or equal to a second preset threshold value, the pot cover 2 is judged to be on the heated pot body 3, and the second controller 6 controls the induction cooker 1 to adopt a precise control mode.
S403, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is smaller than a second preset threshold value, judging that the pot cover 2 is not on the heated pot body 3, and controlling the induction cooker 1 to adopt a conventional mode by the first controller.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. An induction cooker comprising: electromagnetism stove, pan and detection device, be equipped with first controller in the electromagnetism stove, the pan includes the pot body and pot cover, detection device is located on the pot cover, its characterized in that, electromagnetism stove cooking utensil still includes: the second controller is electrically connected with the detection device;
the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed; the detection device is used for detecting the state of the pot cover and sending an electric signal to the second controller;
the second controller is used for judging that the pot cover is vertically placed when the electric signal meets a first preset condition;
the second controller is further used for judging that the pot cover is horizontally placed when the electric signal meets a second preset condition, and the height of the gravity center of the pot cover is different between the first preset condition and the second preset condition.
2. The induction cooker of claim 1, further comprising an electromagnetic field detecting means connected to the second controller, the electromagnetic field detecting means for detecting a magnetic field intensity between the lid and the induction cooker;
the second controller is used for judging that the pot cover is not positioned on the heated pot body when the magnetic field intensity detected by the electromagnetic field detection device is smaller than a preset threshold value;
the second controller is also used for judging that the pot cover is heated on the pot body when the magnetic field intensity detected by the electromagnetic field detection device is greater than or equal to a preset threshold value.
3. The induction cooking appliance according to claim 2, wherein the electric signals include electric signals in three orthogonal directions of the detecting means.
4. The induction cooking appliance according to claim 2, wherein said detecting means is a gravity sensor, said gravity sensor being located within said support portion.
5. The induction cooker of claim 2, wherein said second control is located on said lid.
6. The induction cooker apparatus according to any one of claims 2 to 5, further comprising an alarm device connected to the second controller.
7. A method for detecting the state of a lid in an induction cooker, which is applied to the induction cooker of any one of claims 2 to 4,
the method for detecting the state of the cooker cover in the induction cooker comprises the following steps: the second controller receives an electric signal sent by the detection device, and the electric signal is correspondingly changed along with the state of the pot cover;
when the electric signal meets a first preset condition, judging that the pot cover is vertically placed;
and when the electric signal meets a second preset condition, judging that the pot cover is horizontally placed, wherein the height of the gravity center of the pot cover under the first preset condition is different from that under the second preset condition.
8. The method of detecting a state of a lid in an induction cooker according to claim 7, further comprising: the electrical signals comprise electrical signals in three orthogonal directions of the detection device.
9. The method of claim 8, wherein after said determining that said lid is horizontally placed, further comprising: the electromagnetic field detection device detects the magnetic field intensity between the cooker cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a preset threshold value, judging that the pot cover is on the heated pot body;
and when the magnetic field intensity between the pot cover and the induction cooker is smaller than the preset threshold value, judging that the pot cover is not on the pot body for heating.
10. A control method of an induction cooker applied to the induction cooker of claim 5,
the control method comprises the following steps: the second controller receives an electric signal sent by the detection device, and the electric signal is correspondingly changed along with the state of the pot cover;
when the electric signal meets a first preset condition, judging that the pot cover is vertically placed, and controlling the induction cooker to adopt a conventional mode by the first controller;
when the electric signal meets a second preset condition, the pot cover is judged to be horizontally placed, then the second controller controls the induction cooker to adopt a precise control mode, and the height of the gravity center of the pot cover under the first preset condition is different from that under the second preset condition.
11. The control method of an induction cooker as claimed in claim 10, wherein after said judgment that said lid is placed horizontally,
further comprising: the electromagnetic field detection device detects the magnetic field intensity between the cooker cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body, and controlling the induction cooker to adopt a precise control mode by the second controller;
when the magnetic field intensity between the pot cover and the induction cooker is smaller than the second preset threshold value, the pot cover is judged not to be heated on the pot body, and then the first controller controls the induction cooker to adopt a conventional mode.
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| EP4176776A1 (en) * | 2021-11-08 | 2023-05-10 | Miele & Cie. KG | Cookware system with a cookware and a cover for covering the cookware |
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| JPS60162124A (en) * | 1984-10-09 | 1985-08-23 | Matsushita Electric Ind Co Ltd | Underfloor type foot warmer |
| DE4002322A1 (en) * | 1990-01-26 | 1991-08-01 | Bosch Siemens Hausgeraete | COOKING AREA |
| CN107143893B (en) * | 2017-05-12 | 2019-01-08 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of electromagnetic oven cooker and electromagnetic oven cooker |
| CN107136903A (en) * | 2017-06-30 | 2017-09-08 | 浙江绍兴苏泊尔生活电器有限公司 | Pot cover state detection method and cooker |
| CN107289474B (en) * | 2017-07-10 | 2023-05-09 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of induction cooker and induction cooker |
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| EP4176776A1 (en) * | 2021-11-08 | 2023-05-10 | Miele & Cie. KG | Cookware system with a cookware and a cover for covering the cookware |
| BE1029907B1 (en) * | 2021-11-08 | 2023-06-05 | Miele & Cie | Cookware system with a cookware and with a lid for covering the cookware |
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