CN107289474B - Control method of induction cooker and induction cooker - Google Patents
Control method of induction cooker and induction cooker Download PDFInfo
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- CN107289474B CN107289474B CN201710555073.0A CN201710555073A CN107289474B CN 107289474 B CN107289474 B CN 107289474B CN 201710555073 A CN201710555073 A CN 201710555073A CN 107289474 B CN107289474 B CN 107289474B
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- 230000006698 induction Effects 0.000 title claims abstract description 124
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 104
- 230000003071 parasitic effect Effects 0.000 claims abstract description 94
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 238000001514 detection method Methods 0.000 claims description 81
- 239000003990 capacitor Substances 0.000 claims description 51
- 238000005070 sampling Methods 0.000 claims description 25
- 238000010411 cooking Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 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
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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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- 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
- A47J2201/00—Devices having a modular construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Induction Heating Cooking Devices (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention provides a control method of an induction cooker and the induction cooker, wherein the control method comprises the following steps: the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover; if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and adjusting the heating power of the induction cooker by the first control board according to the temperature detected by the second temperature detecting piece; if the second control board detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover is judged not to be on the pot body, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a control method of an induction cooker and the induction cooker.
Background
The electromagnetic cooker is a widely used cooking utensil, which is mainly heated by utilizing an electromagnetic induction heating principle, and generally consists of a high-frequency induction coil panel (namely an excitation coil), a controller, a ferromagnetic material cooker bottom and other parts.
At present, patent (CN 204554914U) discloses a smart phone controlled wireless temperature induction automatic induction cooker, specifically discloses (as shown in fig. 1): including electromagnetism stove 1, the pot body 2 and mobile phone client, be provided with a pot cover 3 on the pot body 2, electromagnetism stove 1 in install electromagnetism stove temperature control module 10 and electromagnetism stove temperature communication module 11, install temperature sensor 5 and pot cover temperature communication module 12 on the pot cover 3, pot cover temperature communication module 12 transmits the temperature data that temperature sensor 5 gathered to mobile phone client and electromagnetism stove temperature communication module 11, electromagnetism stove temperature control module 10 controls electromagnetism stove 1 according to electromagnetism stove temperature communication module 11 received information.
However, in the prior art, the user may forget to replace or not use the pot cover after taking the pot cover off halfway in the cooking process, and if the cooking process is still judged and controlled according to the temperature detected by the temperature sensor on the pot cover at this time, misjudgment exists, so that the cooking process cannot be accurately controlled.
Disclosure of Invention
In order to solve at least one problem in the background art related to misjudgment that a pot cover is not on a pot body in the cooking process of an induction cooker, the invention provides a control method for controlling an induction cooker accurately and the induction cooker.
The invention provides a control method of an induction cooker, wherein the induction cooker comprises the following steps: the induction cooker comprises an induction cooker and a cooker body with a cooker cover, wherein the cooker cover is provided with a metal outer edge, a first control board and a first temperature detection piece are arranged in the induction cooker, a second control board and a second temperature detection piece are arranged on the cooker cover, the second control board is respectively electrically connected with the metal outer edge and the second temperature detection piece, and the control method comprises the following steps:
the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover;
if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and adjusting the heating power of the induction cooker by the first control board according to the temperature detected by the second temperature detecting piece;
if the second control board detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover is judged not to be on the pot body, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
The second control board is used for detecting whether parasitic capacitance exists on the metal outer edge of the pot cover, if the parasitic capacitance exists on the metal outer edge of the pot cover, the pot cover is judged to be on the pot body, then the first control board is used for adjusting the heating power of the electromagnetic oven according to the temperature detected by the second temperature detection piece, if the parasitic capacitance does not exist on the metal outer edge of the pot cover, the first control board is used for adjusting the heating power of the electromagnetic oven according to the temperature detected by the first temperature detection piece, namely, the position state of the pot cover is judged according to the parasitic capacitance of the metal outer edge of the pot cover, misjudgment caused when the pot cover is taken off halfway or not used is avoided, accurate control of the electromagnetic oven on the cooking process is realized, and the technical problem that the heating power control of the electromagnetic oven is inaccurate when the pot cover is taken off halfway or not used in the existing electromagnetic oven is solved.
Optionally, if the second control board detects that parasitic capacitance exists on the outer edge of the metal, it is determined that the pot cover is on the pot body, and the second control board sends a first indication message to the first control board, and the first control board controls the induction cooker to adjust heating power of the induction cooker according to the received first indication message and at a temperature detected by the second temperature detecting piece.
Optionally, if the second control board detects that parasitic capacitance exists on the outer edge of the metal, it is determined that the pot cover is on the pot body, the second control board sends the temperature detected by the second temperature detecting piece to the first control board, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the second temperature detecting piece.
Optionally, if the second control board detects that there is no parasitic capacitance on the metal outer edge of the pot cover, it is determined that the pot cover is not on the pot body, the second control board sends a second indication message to the first control board, and the first control board controls the induction cooker to adjust heating power of the induction cooker according to the received second indication message and at a temperature detected by the first temperature detecting piece.
Optionally, if the second control board detects that there is no parasitic capacitance on the outer edge of the metal, it is determined that the pot cover is not on the pot body, the second control board does not send the temperature detected by the second temperature detecting piece to the first control board, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
Optionally, the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover, including:
the signal output module arranged on the second control board inputs a first signal to the input end of the capacitance detection module arranged on the second control board, wherein the capacitance detection end of the capacitance detection module is electrically connected with the metal outer edge;
a sampling module arranged on the second control board detects a second signal output by the output end of the capacitance detection module;
the second control board judges whether the signal amplitude of the second signal is lower than a preset signal amplitude;
the second control board detects that parasitic capacitance exists on the metal outer edge of the pot cover, including:
if the signal amplitude of the second signal is lower than the preset signal amplitude, the second control board detects that parasitic capacitance exists on the metal outer edge of the pot cover.
Optionally, the method further comprises:
if the signal amplitude of the second signal is not lower than the preset signal amplitude, the second control board detects that parasitic capacitance does not exist on the metal outer edge of the pot cover.
The invention also provides an induction cooker, comprising: the induction cooker comprises an induction cooker and a cooker body with a cooker cover, wherein the cooker cover is provided with a metal outer edge, a first control board and a first temperature detection piece are arranged in the induction cooker, a second control board and a second temperature detection piece are arranged on the cooker cover, and the second control board is respectively electrically connected with the metal outer edge and the second temperature detection piece;
the second control board is used for detecting whether parasitic capacitance exists on the metal outer edge of the pot cover;
if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, wherein the first control board is used for adjusting the heating power of the induction cooker according to the temperature detected by the second temperature detecting piece;
if the second control board detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover is judged not to be on the pot body, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
The second control panel detects the parasitic capacitance on the metal outer edge to judge whether the pot cover is on the pot body, when the second control panel detects that the parasitic capacitance exists on the metal outer edge, the first control panel root adjusts the heating power by the temperature detected by the second temperature detecting piece, when the second control panel detects that the parasitic capacitance does not exist on the metal outer edge, the first control panel root adjusts the heating power by the temperature detected by the first temperature detecting piece, accurate control of the induction cooker on the cooking process is realized, and misjudgment caused when the pot cover is taken off halfway or the pot cover is not used is avoided.
Optionally, a signal output module, a capacitance detection module and a sampling module are arranged on the second control board, wherein the input end of the capacitance detection module is connected with the signal output module, the output end of the capacitance detection module is connected with the sampling module, and the capacitance detection end of the capacitance detection module is electrically connected with the metal outer edge;
the signal output module is used for inputting a first signal to the output end of the capacitance detection module;
the sampling module is used for detecting a second signal output by the output end of the capacitance detection module.
Optionally, the capacitance detection module includes a first capacitance, a second capacitance, a first resistance, a second resistance, a first diode, a second diode, and a third capacitance, wherein,
the first capacitor, the second capacitor and the second diode are sequentially connected in series, the input end of the first capacitor is connected with the signal output module, the cathode of the second diode is connected with the sampling module, one end of the capacitor detection end is connected between the first capacitor and the second capacitor, and the other end of the capacitor detection end is connected with the metal outer edge;
the first resistor, the second resistor, the first diode and the third capacitor are connected in parallel, one end of the first resistor is connected with one end of the capacitor detection end, the cathode of the first diode is connected with the anode of the second diode, and one end of the second resistor and one end of the third capacitor are connected with the cathode of the second diode;
the other end of the first resistor, the anode of the first diode, the other end of the second resistor and the other end of the third capacitor are grounded.
Optionally, the first capacitor and the second capacitor are coupling capacitors, the third capacitor is a filter capacitor, the first resistor and the second resistor are voltage dividing resistors, the first diode is a freewheeling diode, and the second diode is an isolation diode.
The construction of the present invention and other objects and advantages thereof will be more readily understood from the description of the preferred embodiment taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a conventional induction cooker;
FIG. 2 is a schematic diagram of the mechanism of the induction cooker provided by the invention;
FIG. 3 is a schematic top view of the lid of FIG. 2;
FIG. 4 is a schematic view of a part of the structure of the pot cover in FIG. 2;
FIG. 5 is a flow chart of a method for controlling an induction cooker according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart of a control method of an induction cooker according to an embodiment of the invention;
FIG. 7 is a schematic flow chart of a control method of an induction cooker according to an embodiment of the invention;
fig. 8 is a schematic flow chart of a control method of an induction cooker according to a second embodiment of the present invention;
fig. 9 is a schematic structural view of a second control board in the induction cooker provided in the third embodiment of the invention.
Reference numerals illustrate:
an electromagnetic oven-10;
a first control board-11;
a panel-12;
a pot body-20;
a pot cover-30;
a second control board-31;
a second temperature detecting member-32;
metal outer edge-33;
a handle-34;
a metal fastener-35;
an indicator light-36;
a sampling module-40;
a signal output module-50;
a capacitance detection module-60;
a capacitance detection terminal-61;
a first capacitor-C1;
a second capacitor-C2;
a third capacitor-C3;
a first resistor-R1;
a second resistor-R2;
a first diode-D1;
a second diode-D2.
Detailed Description
Example 1
Fig. 2 is a schematic diagram of a mechanism of an induction cooker provided by the invention, fig. 3 is a schematic diagram of a top view of a pot cover in fig. 2, fig. 4 is a schematic diagram of a part of a structure of the pot cover in fig. 2, and fig. 5 is a schematic flow chart of a control method of the induction cooker provided by an embodiment of the invention, wherein the invention relates to a control method of the induction cooker, and the induction cooker is shown in fig. 2-4, and comprises: the induction cooker 10 and the cooker body 20 with the cooker cover 30, the cooker cover 30 is provided with a metal outer edge 33, wherein a first control board 11 and a first temperature detecting piece (not shown) are arranged in the induction cooker 10, a second control board 31 and a second temperature detecting piece 32 are arranged on the cooker cover 30, the second control board 31 is respectively electrically connected with the metal outer edge 33 and the second temperature detecting piece 32, as shown in fig. 2-3, the second control board 31 is specifically arranged on a handle 34 on the cooker cover 30, the second control board 31 is electrically connected with the metal outer edge 33 through a metal fastener 35 (such as a screw) for fixing the handle 34, an indicator light 36 is arranged on the handle 34, the execution main body of the embodiment is the first control board 11 on the induction cooker 10 and the second control board 31 on the cooker cover 30, and the method provided by the embodiment is applied to a scene of placing the cooker body 20 on the panel 12 of the induction cooker 10 for cooking food, and the specific control method is shown in fig. 5, and comprises the following steps:
step 101, a second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover, if yes, step 102 is executed, and if not, step 103 is executed;
in this embodiment, when the pot body is placed on the electromagnetism stove and starts heating, alternating current in the coil panel in the electromagnetism stove produces the magnetic field, the magnetic field effect produces the vortex at the bottom of the boiler and makes the pot body generate heat, produce induced voltage on the pot body simultaneously, when the pot cover is placed on the pot body, the metal outer edge of pot cover contacts with the pot body, can produce parasitic capacitance between the metal outer edge of pot cover and the pot body, when the pot cover is taken off from the pot body, there is not parasitic capacitance between the metal outer edge of pot cover and the pot body, therefore, in this application, whether the judgement pot cover is on the pot body is judged through detecting whether there is parasitic capacitance on the metal outer edge of pot cover, specifically, second control panel and metal outer edge contact, when there is parasitic capacitance on the metal outer edge, the parasitic capacitance can be detected to the second control panel, and can indicate that the pot cover is on the pot body, when parasitic capacitance is not detected to the second control panel, indicate that the pot cover is not on the pot body.
Step 102: if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and adjusting the heating power of the induction cooker by the first control board according to the temperature detected by the second temperature detecting piece;
when the second control board detects that parasitic capacitance exists on the outer edge of the metal, the pot cover is judged to be arranged on the pot body, at the moment, the induction cooker can control heating power according to the temperature detected by the second temperature detecting piece on the pot cover, and the temperature detected by the second temperature detecting piece is close to the actual temperature in the pot body, so that accurate control of the cooking process of the induction cooker can be realized.
Step 103: if the second control board detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover is judged not to be on the pot body, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
Wherein when the second control board cannot detect the parasitic capacitance, the parasitic capacitance does not exist on the outer edge of the metal, the pot cover is not on the pot body or the pot cover is on the pot body but the pot body is not on the induction cooker, and at the moment, the induction cooker cannot control the heating power of the induction cooker according to the temperature detected by the second temperature detecting piece on the pot cover, therefore, the first control board controls the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece in the induction cooker,
in this embodiment, when the cooker cover is on the cooker body, the induction cooker controls the heating power according to the temperature detected by the second temperature detecting element on the cooker cover, when the cooker cover is not on the cooker body, the induction cooker controls the heating power according to the temperature detected by the first temperature detecting element in the induction cooker, so that the problem of inaccurate control in the cooking process caused by the fact that the induction cooker still controls the heating power according to the temperature on the cooker cover when the cooker cover is taken off halfway or the cooker cover is not used in the prior art is avoided.
In this embodiment, the second control board may directly send the detection result to the first control board when detecting the parasitic capacitance, and the first control board determines whether the parasitic capacitance exists according to the detection result, thereby determining whether the pot cover is on the pot body.
Fig. 6 is a schematic flow chart of a control method of an induction cooker according to an embodiment of the invention, wherein when the first control board controls heating power at a temperature detected by a first temperature or controls heating power at a temperature detected by a second temperature, the specific control method is as shown in fig. 6, and includes the following steps:
step 101, the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover, if yes, step 1021 is executed, and if not, step 1031 is executed;
step 1021, if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and sending a first indication message to the first control board by the second control board;
when the second control board detects that the parasitic capacitance exists on the outer edge of the metal, it is determined that the pot cover is on the pot body, and then the induction cooker can control heating power according to the temperature detected by the second temperature detecting piece on the pot cover, at this time, the second control board sends a first indication message to the first control board, and the first indication message is used for indicating the induction cooker to control heating power according to the temperature detected by the second temperature detecting piece on the pot cover, so after step 1021 is executed, step 1022 is executed next.
In this embodiment, when the first control board receives the first indication message, the first control board can determine that the cooker cover is on the cooker body, so that the first control board can control the heating power of the induction cooker according to the temperature detected by the second temperature detecting piece, and because the temperature detected by the second temperature detecting piece is close to the actual temperature in the cooker body, accurate control of the cooking process of the induction cooker can be realized, and the problem that in the prior art, when the cooker cover is taken off halfway or the cooker cover is not used, the induction cooker still controls the heating power according to the temperature on the cooker cover, so that inaccurate control is caused in the cooking process is avoided.
Step 1031, if the second control board detects that parasitic capacitance does not exist on the metal outer edge of the pot cover, judging that the pot cover is not on the pot body, and sending a second indication message to the first control board by the second control board;
when the second control board cannot detect the parasitic capacitance, it indicates that the parasitic capacitance does not exist on the outer edge of the metal, and then it can be determined that the pot cover is not on the pot body or that the pot cover is not on the induction cooker, at this time, the induction cooker cannot control the heating power of the induction cooker according to the temperature detected by the second temperature detecting member on the pot cover, so the second control board sends a second indication message to the first control board, where the second indication message is used to instruct the first control board to control the heating power of the induction cooker according to the temperature detected by the first temperature in the induction cooker, and specifically, the second indication message includes the pot cover displacement information, so the first control board can determine that the pot cover is not on the pot body according to the pot cover displacement information in the second indication message, and after executing step 1031, then executing step 1032.
Step 1032, the first control board controls the induction cooker to adjust the heating power of the induction cooker according to the received second indication message and the temperature detected by the first temperature detecting piece.
When the first control board receives the second indication message, the pot cover can be judged not to be on the pot body according to the second indication message, so that the heating power of the electromagnetic oven cannot be controlled according to the temperature detected by the second temperature detecting piece on the pot cover, and at the moment, the first control board can control the heating power of the first temperature control board according to the temperature detected by the first temperature detecting piece.
In this embodiment, in step 1031, when the second control board detects that there is no parasitic capacitance, the second control board may instruct the first control board to control the heating power with the temperature detected by the first temperature detecting component by sending no temperature detected by the second temperature detecting component to the first control board, that is, when the first control board does not receive the message sent by the second control board in a specific period, the heating power is controlled with the temperature detected by the first temperature detecting component, so that when the second control board detects the parasitic capacitance, the first instruction message is sent to the first control board, and when the parasitic capacitance is not detected, the first control board is instructed by sending no second instruction message to the first control board.
In this embodiment, whether the pot cover is on the pot body is judged by whether parasitic capacitance is detected, when the pot cover is judged to be on the pot body, the temperature detected by the second temperature detecting piece is closer to the actual temperature in the pot body, then the induction cooker controls the heating power according to the temperature detected by the second temperature detecting piece on the pot cover, so that the control of the cooking process is more accurate, when the pot cover is judged not to be on the pot body, because the temperature detected by the second temperature detecting piece on the pot cover is not the actual temperature in the pot body, the temperature detected by the first temperature detecting piece in the induction cooker is closer to the temperature in the pot body, then the induction cooker controls the heating power according to the temperature detected by the first temperature detecting piece in the induction cooker, thus improving the accurate control of the induction cooker on the whole cooking process and avoiding the problem that the induction cooker controls the cooking process inaccurately in the prior art.
In this embodiment, when the second control board sends the first indication message to the first control board, the first indication message may only include the pot cover positioning information, so when the first control board receives the first indication message, the first control board may send a request instruction to the second control board, and the second control board sends the second temperature detected by the second temperature detecting element to the first control board according to the request instruction, or the first indication message includes the pot cover positioning information and the second temperature detected by the second temperature detecting element, that is, the pot cover positioning information and the second temperature are packaged into the first indication message, and when the first control board receives the first indication message, the heating power of the induction cooker is adjusted according to the second temperature included in the first indication message.
FIG. 7 is a schematic flow chart of a control method of an induction cooker according to an embodiment of the invention; in step 101, the second control board detects whether a parasitic capacitance exists on the metal outer edge of the pot cover, as shown in fig. 7, and includes the following steps:
step 1011: the signal output module arranged on the second control board inputs a first signal to the input end of the capacitance detection module arranged on the second control board, wherein the capacitance detection end of the capacitance detection module is electrically connected with the outer edge of the metal;
in this embodiment, in order to detect the parasitic capacitance on the outer edge of the metal, specifically (see fig. 9 below), a signal output module, a capacitance detection module, and an acquisition module are disposed on the second control board, where the capacitance detection end of the capacitance detection module is electrically connected to the outer edge of the metal, the signal output module is connected to the input end of the capacitance detection module, the acquisition module is connected to the output end of the capacitance detection module, the signal output module inputs a first signal to the input end of the capacitance detection module, specifically, the first signal may be a high-frequency square wave signal, and the first signal is processed by the capacitance detection module and then outputs a second signal from the output end.
Step 1012: the sampling module arranged on the second control board detects a second signal output by the output end of the capacitance detection module;
the sampling module detects the second signal, wherein when the first signal is a high-frequency square wave signal, the second signal detected by the sampling module is a sine wave or a cosine wave.
Step 1013: the second control board determines whether the signal amplitude of the second signal is lower than the preset signal amplitude, if yes, step 1014 is executed, and if not, step 1015 is executed;
when the parasitic capacitance does not exist on the metal outer edge of the pot cover, the signal amplitude of the second signal output by the first signal after passing through the capacitance detection module is kept unchanged, when the parasitic capacitance exists on the metal outer edge of the pot cover, the capacitance detection end of the capacitance detection module is equivalent to an external capacitor, so that the capacitance detection module bypasses a part of the first signal, the signal amplitude of the second signal detected by the sampling module is reduced, namely, the signal amplitude of the second signal detected by the sampling module is smaller than the signal amplitude of the second signal detected by the sampling module when the parasitic capacitance exists, therefore, in the embodiment, whether the parasitic capacitance exists is judged by judging whether the signal amplitude of the second signal is smaller than the preset signal amplitude, specifically, when the signal amplitude of the second signal is not smaller than the preset signal amplitude, the parasitic capacitance exists on the metal outer edge, namely, the pot cover is not on the pot body, and when the signal amplitude of the second signal is not smaller than the preset signal amplitude, the parasitic capacitance exists between the second signal and the preset signal amplitude when the parasitic capacitance exists.
Step 1014: if the signal amplitude of the second signal is lower than the preset signal amplitude, the second control board detects that parasitic capacitance exists on the metal outer edge of the pot cover.
In this embodiment, when the detected signal amplitude of the second signal is lower than the preset signal amplitude, that is, the signal amplitude of the second signal is lower than the signal amplitude of the second signal detected when the parasitic capacitance does not exist, that is, a bypass exists in the detection circuit, at this time, it may be determined that the parasitic capacitance exists on the metal outer edge.
Step 1015: if the signal amplitude of the second signal is not lower than the preset signal amplitude, the second control board detects that parasitic capacitance does not exist on the metal outer edge of the pot cover.
When the signal amplitude of the second signal is not lower than the preset signal amplitude, namely, the signal amplitude of the second signal is higher than or equal to the preset signal amplitude, the fact that the capacitance detection end is not externally connected with parasitic capacitance, namely, the parasitic capacitance does not exist on the outer edge of the metal is indicated.
Example two
Fig. 8 is a flow chart of a control method of an induction cooker according to a second embodiment of the invention, wherein in the embodiment, when the first control board controls heating power with a temperature detected by a first temperature or controls heating power with a temperature detected by a second temperature, unlike the above embodiment, in the embodiment, the second control board directly sends the temperature detected by the second temperature detecting element to the first control board to instruct the first control board, and the specific control method is as shown in fig. 8, and includes the following steps:
step 201, the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover, if yes, step 2021 is executed, and if not, step 2031 is executed;
in this embodiment, step 201 is the same as step 101 in the above embodiment, and therefore, reference may be made to step 101, which is not described in detail in this embodiment.
2021, if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and sending the temperature detected by the second temperature detecting piece to the first control board by the second control board;
in this embodiment, when the second control board detects the parasitic capacitance, that is, the cover is on the pot body, at this time, the second control board sends the second temperature detected by the second temperature detection to the first control board, and when the first control board receives the second temperature, it is determined that the cover is on the pot body, then step 2022 is executed.
in this embodiment, when the first control board receives the second temperature detected by the second temperature detecting element, it can be judged that the pot cover is on the pot body, and then the first control board adjusts the heating power with the second temperature, and it should be noted that, in this embodiment, the first temperature detecting element is electrically connected with the first control board, so when the first control board receives the second temperature detected by the second temperature detecting element sent by the second control board, it also receives the first temperature detected by the first temperature detecting element, that is, the first control board obtains the first temperature and the second temperature at the same time, and because the second temperature is closer to the actual temperature in the pot body, the first control board controls the heating power of the electromagnetic oven with the received second temperature.
Step 2031, if the second control board detects that there is no parasitic capacitance on the outer edge of the metal, determining that the pot cover is not on the pot body, where the second control board does not send the temperature detected by the second temperature detecting component to the first control board;
in this embodiment, when the second control board does not detect the parasitic capacitance, that is, the pot cover is not on the pot body, so that the second temperature detected by the second temperature detecting element cannot reflect the actual temperature in the pot body, at this time, the second control board stops sending the temperature of the second temperature detecting element to the first control board, and at this time, the first control board executes step 2032.
Step 2032, the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece;
in this embodiment, the first control board does not receive the second temperature detected by the second temperature detecting element sent by the second control board, so the first control board controls the heating power of the induction cooker according to the first temperature detected by the first temperature detecting element.
In this embodiment, in step 2031, when the second control board does not detect the parasitic capacitance, that is, the pot cover is not on the pot body, as in the first embodiment, the second control board may directly send a second indication message to the first control board to instruct the first control board to adjust the heating power with the temperature detected by the first temperature detecting element, so when the second control board detects the parasitic capacitance, the second control board sends the temperature detected by the second temperature detecting element to the first control board, and when the parasitic capacitance is not detected, the second control board directly sends a second indication message to the first control board.
Example III
Fig. 9 is a schematic structural diagram of a second control board in an induction cooker provided in a third embodiment of the invention, where the embodiment provides an induction cooker, specifically shown in fig. 2-4, and the induction cooker includes: the induction cooker 10 and the cooker body 20 with the cooker cover 30, the cooker cover 30 is provided with a metal outer edge 33, wherein a first control board 11 and a first temperature detecting piece (not shown) are arranged in the induction cooker 10, a second control board 31 and a second temperature detecting piece 32 are arranged on the cooker cover 30, the second control board 31 is respectively electrically connected with the metal outer edge 33 and the second temperature detecting piece 32, as shown in fig. 2-3, the second control board 31 is specifically arranged on a handle 34 on the cooker cover 30, the second control board 31 is electrically connected with the metal outer edge 33 through a metal fastener 35 (such as a screw) for fixing the handle 34, and an indicator light 36 is arranged on the handle 34, wherein in the embodiment, the second control board 31 is used for detecting whether parasitic capacitance exists on the metal outer edge 33 of the cooker cover 30, if the second control board 31 detects parasitic capacitance on the metal outer edge 33, the first control board 11 is used for adjusting the heating power of the induction cooker by the temperature detected by the second temperature detecting piece 32, and if the second control board 31 detects that parasitic capacitance does not exist on the metal outer edge 33, the first control board 20 is not used for adjusting the heating power of the induction cooker by the first control board 11.
In this embodiment, when the cooker of the induction cooker works, firstly, the cooker body 20 is placed on the panel 12 of the induction cooker 10, the induction cooker 10 starts to heat, meanwhile, the second control board 31 on the cooker cover 30 starts to operate, when the second control board 31 detects that parasitic capacitance exists on the metal outer edge of the cooker cover, the second control board 31 can be used for sending a first indication message to the first control board 11, the first control board 11 controls the induction cooker 10 to adjust the heating power of the induction cooker 10 at the temperature detected by the second temperature detecting piece 32 according to the first indication message, and when the second control board 31 detects that parasitic capacitance does not exist on the metal outer edge of the cooker cover, the second control board 31 can be used for sending a second indication message to the first control board 11, and the first control board 11 controls the induction cooker 10 to adjust the heating power of the induction cooker 10 at the temperature detected by the first temperature detecting piece according to the second indication message.
Or, when the second control board 31 detects that the parasitic capacitance exists on the metal outer edge of the pot cover, the second control board 31 may be used to send the temperature detected by the second temperature detecting element 32 to the first control board 11, the first control board 11 adjusts the heating power of the induction cooker 10 according to the received temperature detected by the second temperature detecting element 32, and when the second control board 31 detects that the parasitic capacitance does not exist on the metal outer edge of the pot cover, the second control board 31 does not send the temperature detected by the second temperature detecting element 32 to the first control board 11, and the temperature detected by the first temperature detecting element received by the first control board 11 adjusts the heating power of the induction cooker 10.
In this embodiment, as shown in fig. 9, a signal output module 50, a capacitance detection module 60 and a sampling module 40 are disposed on the second control board 31, where an input end of the capacitance detection module 60 is connected to the signal output module 50, an output end of the capacitance detection module 60 is connected to the sampling module 40, and a capacitance detection end 61 of the capacitance detection module 60 is electrically connected to the metal outer edge 33, specifically, the capacitance detection end 61 is electrically connected to the metal outer edge 33 through a metal fastener 35 (such as a screw), the signal output module 50 is used for inputting a first signal to the output end of the capacitance detection module 60, and the sampling module 40 is used for detecting a second signal output by the output end of the capacitance detection module 60, where in this embodiment, the signal output module 50 and the sampling module 40 are specifically disposed on a microcontroller (Micro Control Unit, abbreviated as MCU), where the first signal output by the signal output module 50 is specifically a high-frequency square wave signal, and the sampling module 40 is specifically an AD sampling module.
Specifically, as shown in fig. 9, the capacitance detection module includes a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a first diode D1, a second diode D2, and a third capacitor C3, where the first capacitor C1, the second capacitor C2, and the second diode D2 are sequentially connected in series, an input end of the first capacitor C1 is connected to the signal output module 50, a cathode of the second diode D2 is connected to the sampling module 40, an anode of the second diode D2 is connected to the second capacitor C2, one end of the capacitance detection end 61 is connected between the first capacitor C1 and the second capacitor C2, and the other end of the capacitance detection end 61 is connected to the metal outer edge 33; the first resistor R1, the second resistor R2, the first diode D1 and the third capacitor C3 are connected in parallel, one end of the first resistor R1 is connected with one end of the capacitor detection end 61, specifically, one end of the first resistor R1 is connected on a wire between the first capacitor C1 and the second capacitor C2 and is connected with the capacitor detection end 61 at the same time, the cathode of the first diode D1 is connected with the anode of the second diode D2, specifically, the cathode of the first diode D1 is connected between the second capacitor C2 and the anode of the second diode D2, one end of the second resistor R2 and one end of the third capacitor C3 are connected with the cathode of the second diode D2, specifically, one end of the second resistor R2 and one end of the third capacitor C3 are connected on a wire between the cathode of the second diode D2 and the sampling module 40, and the other end of the first resistor R1, the anode of the second resistor D2 and the other end of the third capacitor C3 are all grounded.
In this embodiment, the first capacitor C1 and the second capacitor C2 are coupling capacitors, the third capacitor C3 is a filter capacitor, the first resistor R1 and the second resistor R2 are voltage dividing resistors, the first diode D1 is a freewheeling diode, and the second diode D2 is an isolation diode.
It should be noted that the circuit in the capacitance detection module 60 includes, but is not limited to, a capacitance detection circuit as shown in fig. 9, and other circuits may be used to detect the parasitic capacitance, so long as the parasitic capacitance on the metal outer edge 33 can be detected.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A control method of an induction cooker, characterized in that the induction cooker comprises: electromagnetism stove (10) and take pot body (20) of pot cover (30), pot cover (30) have metal outer edge (33), wherein, be equipped with first control panel (11) and first temperature detection spare in the electromagnetism stove, be equipped with second control panel (31) and second temperature detection spare (32) on pot cover (30), second control panel (31) respectively with metal outer edge (33) with second temperature detection spare (32) electrical property links to each other, the control method includes:
the second control board detects whether parasitic capacitance exists on the metal outer edge of the pot cover;
if the second control board detects that parasitic capacitance exists on the outer edge of the metal, judging that the pot cover is on the pot body, and adjusting the heating power of the induction cooker by the first control board according to the temperature detected by the second temperature detecting piece;
if the second control board detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover is judged not to be on the pot body, and the first control board adjusts the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
2. The control method according to claim 1, characterized in that: if the second control board detects that parasitic capacitance exists on the outer edge of the metal, the pot cover is judged to be on the pot body, the second control board sends a first indication message to the first control board, and the first control board controls the induction cooker to adjust heating power of the induction cooker according to the received first indication message and the temperature detected by the second temperature detecting piece.
3. The control method according to claim 1, wherein if the second control board detects that parasitic capacitance exists on the outer edge of the metal, it is determined that the pot cover is on the pot body, the second control board sends the temperature detected by the second temperature detecting member to the first control board, and the first control board adjusts the heating power of the induction cooker according to the received temperature detected by the second temperature detecting member.
4. A control method according to claim 2 or 3, characterized in that: if the second control board detects that parasitic capacitance does not exist on the metal outer edge of the pot cover, the second control board judges that the pot cover is not on the pot body, the second control board sends a second indication message to the first control board, and the first control board controls the induction cooker to adjust heating power of the induction cooker according to the received second indication message and the temperature detected by the first temperature detecting piece.
5. The control method according to claim 2 or 3, wherein if the second control board detects that there is no parasitic capacitance on the metal outer edge, it is determined that the pot cover is not on the pot body, the second control board does not send the temperature detected by the second temperature detecting member to the first control board, and the first control board adjusts the heating power of the induction cooker at the temperature detected by the first temperature detecting member.
6. A control method according to any one of claims 1 to 3, wherein the second control board detects whether there is parasitic capacitance on the metal outer edge of the pot cover, comprising:
the signal output module arranged on the second control board inputs a first signal to the input end of the capacitance detection module arranged on the second control board, wherein the capacitance detection end of the capacitance detection module is electrically connected with the metal outer edge;
a sampling module arranged on the second control board detects a second signal output by the output end of the capacitance detection module;
the second control board judges whether the signal amplitude of the second signal is lower than a preset signal amplitude;
the second control board detects that parasitic capacitance exists on the metal outer edge of the pot cover, including:
if the signal amplitude of the second signal is lower than the preset signal amplitude, the second control board detects that parasitic capacitance exists on the metal outer edge of the pot cover.
7. The control method according to claim 6, characterized by further comprising:
if the signal amplitude of the second signal is not lower than the preset signal amplitude, the second control board detects that parasitic capacitance does not exist on the metal outer edge of the pot cover.
8. An induction cooker, characterized in that it comprises: the induction cooker comprises an induction cooker (10) and a cooker body (20) with a cooker cover (30), wherein the cooker cover (30) is provided with a metal outer edge (33), the cooker cover (30) is provided with a handle (34), the handle (34) is provided with an indicator lamp (36), a first control board (11) and a first temperature detection piece are arranged in the induction cooker, the cooker cover (30) is provided with a second control board (31) and a second temperature detection piece (32), and the second control board (31) is respectively electrically connected with the metal outer edge (33) and the second temperature detection piece (32);
the second control board (31) is used for detecting whether parasitic capacitance exists on the metal outer edge (33) of the pot cover (30);
if the second control board (31) detects that parasitic capacitance exists on the outer edge of the metal, the pot cover (30) is judged to be on the pot body (20), and the first control board (11) is used for adjusting the heating power of the electromagnetic oven according to the temperature detected by the second temperature detecting piece (32);
if the second control board (31) detects that parasitic capacitance does not exist on the outer edge of the metal, the pot cover (30) is judged not to be on the pot body (20), and the first control board (11) is used for adjusting the heating power of the induction cooker according to the temperature detected by the first temperature detecting piece.
9. The induction cooker according to claim 8, characterized in that a signal output module (50), a capacitance detection module (60) and a sampling module (40) are arranged on the second control board (31), wherein an input end of the capacitance detection module (60) is connected with the signal output module (50), an output end of the capacitance detection module (60) is connected with the sampling module (40), and a capacitance detection end (61) of the capacitance detection module (60) is electrically connected with the metal outer edge (33);
the signal output module (50) is used for inputting a first signal to the output end of the capacitance detection module (60);
the sampling module (40) is used for detecting a second signal output by the output end of the capacitance detection module (60).
10. The induction cooker of claim 9, characterized in that the capacitance detection module (60) comprises a first capacitance (C1), a second capacitance (C2), a first resistance (R1), a second resistance (R2), a first diode (D1), a second diode (D2) and a third capacitance (C3), wherein,
the first capacitor (C1), the second capacitor (C2) and the second diode (D2) are sequentially connected in series, the input end of the first capacitor (C1) is connected with the signal output module (50), the cathode of the second diode (D2) is connected with the sampling module (40), one end of the capacitor detection end (61) is connected between the first capacitor (C1) and the second capacitor (C2), and the other end of the capacitor detection end (61) is connected with the metal outer edge (33);
the first resistor (R1), the second resistor (R2), the first diode (D1) and the third capacitor (C3) are connected in parallel, one end of the first resistor (R1) is connected with one end of the capacitor detection end (61), the cathode of the first diode (D1) is connected with the anode of the second diode (D2), and one end of the second resistor (R2) and one end of the third capacitor (C3) are connected with the cathode of the second diode (D2);
the other end of the first resistor (R1), the anode of the first diode (D1), the other end of the second resistor (R2) and the other end of the third capacitor (C3) are grounded.
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| CN109386853B (en) * | 2018-07-26 | 2020-03-24 | 浙江绍兴苏泊尔生活电器有限公司 | Induction cooker and pot cover state detection method and control method thereof |
| CN109386852B (en) * | 2018-07-26 | 2020-02-07 | 浙江绍兴苏泊尔生活电器有限公司 | Induction cooker and pot cover state detection method and control method thereof |
| CN109549462B (en) * | 2018-12-11 | 2023-09-29 | 惠州拓邦电气技术有限公司 | Constant power control method and device for automatic frying pan and automatic frying pan |
| CN112568724A (en) * | 2019-09-29 | 2021-03-30 | 浙江绍兴苏泊尔生活电器有限公司 | Heating set and state identification method |
| CN112869546B (en) * | 2019-11-29 | 2023-01-06 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and control method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607076A (en) * | 2012-02-27 | 2012-07-25 | 美的集团有限公司 | Accurate temperature measuring device and method for induction cooker |
| JP2012152635A (en) * | 2012-05-24 | 2012-08-16 | Mitsubishi Electric Corp | Rice cooker |
| CN205191668U (en) * | 2015-11-24 | 2016-04-27 | 佛山市顺德区美的电热电器制造有限公司 | Firing equipment and culinary art device |
| WO2016077979A1 (en) * | 2014-11-18 | 2016-05-26 | 史利利 | Electric pressure cooker and detection circuit thereof |
| JP5992131B1 (en) * | 2015-10-16 | 2016-09-14 | 三菱電機株式会社 | Induction heating cooking apparatus, composite cooking apparatus, and induction heating cooking system including these |
| CN106152188A (en) * | 2015-04-07 | 2016-11-23 | 珠海格力电器股份有限公司 | Electromagnetic oven and control method thereof |
| CN106473582A (en) * | 2016-08-30 | 2017-03-08 | 刘万斌 | A kind of automatic intelligent commercial electromagnet cooking machine |
| CN107084411A (en) * | 2017-05-26 | 2017-08-22 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of electromagnetic oven cooker |
| CN107143893A (en) * | 2017-05-12 | 2017-09-08 | 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 |
| CN206959025U (en) * | 2017-07-10 | 2018-02-02 | 浙江绍兴苏泊尔生活电器有限公司 | Electromagnetic oven cooker |
-
2017
- 2017-07-10 CN CN201710555073.0A patent/CN107289474B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607076A (en) * | 2012-02-27 | 2012-07-25 | 美的集团有限公司 | Accurate temperature measuring device and method for induction cooker |
| JP2012152635A (en) * | 2012-05-24 | 2012-08-16 | Mitsubishi Electric Corp | Rice cooker |
| WO2016077979A1 (en) * | 2014-11-18 | 2016-05-26 | 史利利 | Electric pressure cooker and detection circuit thereof |
| CN106152188A (en) * | 2015-04-07 | 2016-11-23 | 珠海格力电器股份有限公司 | Electromagnetic oven and control method thereof |
| JP5992131B1 (en) * | 2015-10-16 | 2016-09-14 | 三菱電機株式会社 | Induction heating cooking apparatus, composite cooking apparatus, and induction heating cooking system including these |
| CN205191668U (en) * | 2015-11-24 | 2016-04-27 | 佛山市顺德区美的电热电器制造有限公司 | Firing equipment and culinary art device |
| CN106473582A (en) * | 2016-08-30 | 2017-03-08 | 刘万斌 | A kind of automatic intelligent commercial electromagnet cooking machine |
| CN107143893A (en) * | 2017-05-12 | 2017-09-08 | 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 |
| CN107084411A (en) * | 2017-05-26 | 2017-08-22 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of electromagnetic oven cooker |
| CN206959025U (en) * | 2017-07-10 | 2018-02-02 | 浙江绍兴苏泊尔生活电器有限公司 | Electromagnetic oven cooker |
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