Power interlocking method and induction cooker

Abstract

An embodiment of the present application provides a power interlocking method and an induction cooker, wherein the induction cooker is provided with multiple burners, wherein the method includes obtaining a preset maximum power of each burner; obtaining a preset maximum total power of multiple burners; adjusting the current power of the burner in a working state so that the current power of the burner in a working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in a working state is less than or equal to the maximum total power; enabling the induction cooker to heat smoothly and continuously, and avoiding entering the IGBT high-temperature protection mode under high voltage conditions, thereby improving user experience.

Description

Technical Field

[0001] The embodiments of the present application relate to, but are not limited to, the field of kitchenware, and in particular to a power interlocking method and an induction cooker. Background Art

[0002] Current induction cookers mainly use a single-tube parallel resonance technology solution, and do not limit the heating power of the burner. This results in a certain degree of step voltage being generated in the gears from the lowest continuous power to the maximum power. The step voltage increases with the increase of the grid voltage, causing the IGBT drive circuit to heat up, causing the induction cooker to enter the IGBT high-temperature protection mode, and even causing the IGBT drive circuit to burn out, affecting the user experience. Summary of the Invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The embodiments of the present application provide a power interlocking method and an induction cooker.

[0005] An embodiment of a first aspect of the present application provides a power interlocking method, which is applied to an induction cooker having multiple burners. The power interlocking method includes:

[0006] Obtaining the preset maximum power of each of the burners;

[0007] Obtaining the maximum total power of the plurality of burners;

[0008] The current power of the burner in working state is adjusted so that the current power of the burner in working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in working state is less than or equal to the maximum total power.

[0009] In certain embodiments of the first aspect of the present application, the induction cooker is provided with a display device; and the power interlocking method further comprises:

[0010] When the induction cooker is powered on for the first time, the maximum total power is displayed by the display device.

[0011] In certain embodiments of the first aspect of the present application, the power interlocking method further includes:

[0012] When the maximum total power is zero, all the burners are controlled to be in a closed state.

[0013] In certain embodiments of the first aspect of the present application, the power interlocking method includes:

[0014] When the operating voltage of the induction cooker is a first voltage value, controlling the first total power value of the induction cooker to be less than or equal to the maximum total power;

[0015] When the operating voltage of the induction cooker is a second voltage value, controlling the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker;

[0016] Among them, the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target gear when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target gear when the working voltage of the induction cooker is the second voltage value.

[0017] In certain embodiments of the first aspect of the present application, the induction cooker is provided with an IGBT drive circuit; and the power interlocking method further comprises:

[0018] obtaining a temperature of an IGBT drive circuit, and increasing the power of the induction cooker when the temperature of the IGBT drive circuit is greater than a preset first temperature threshold, or when the temperature of the IGBT drive circuit is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit is greater than a preset temperature rise rate threshold; and shutting down the IGBT drive circuit and outputting a fault code corresponding to the IGBT drive circuit when the temperature of the IGBT drive circuit is greater than a preset third temperature threshold;

[0019] Obtaining a step voltage value of the IGBT drive circuit within a preset time interval, and when the step voltage value is greater than a preset step voltage threshold, increasing the power of the induction cooker until the step voltage value meets a preset step voltage range;

[0020] The third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

[0021] In an embodiment of a second aspect of the present application, an induction cooker is provided with a plurality of burners and a controller, wherein the controller includes an acquisition module and an adjustment module;

[0022] The acquisition module is used to acquire the preset maximum power of each of the burners and the preset maximum total power of the multiple burners;

[0023] The adjustment module is used to adjust the current power of the burner in the working state so that the current power of the burner in the working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in the working state is less than or equal to the maximum total power.

[0024] In certain embodiments of the second aspect of the present application, the induction cooker is provided with a display device; the display device is connected to the controller, and the display device is used to display the maximum total power when the induction cooker is powered on for the first time.

[0025] In certain embodiments of the second aspect of the present application, the controller is further configured to control all the burners to be in an off state when the maximum total power is zero.

[0026] In certain embodiments of the second aspect of the present application, the regulating module is also used to control the first total power value of the induction cooker to be less than or equal to the maximum total power, and to control the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker; wherein, the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the second voltage value.

[0027] In certain embodiments of the second aspect of the present application, the induction cooker is provided with an IGBT drive circuit; the controller further comprises an IGBT drive circuit control module, and the IGBT drive circuit control module is connected to the IGBT drive circuit;

[0028] The IGBT drive circuit control module is used to obtain the temperature of the IGBT drive circuit. When the temperature of the IGBT drive circuit is greater than a preset first temperature threshold, or the temperature of the IGBT drive circuit is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit is greater than a preset temperature rise rate threshold, the power of the induction cooker is increased. When the temperature of the IGBT drive circuit is greater than a preset third temperature threshold, the IGBT drive circuit is turned off and a fault code corresponding to the IGBT drive circuit is output; the step voltage value of the IGBT drive circuit within a preset time interval is obtained. When the step voltage value is greater than the preset step voltage threshold, the power of the induction cooker is increased until the step voltage value meets the preset step voltage range. The third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

[0029] The above scheme has at least the following beneficial effects: by limiting the power of the burner of the induction cooker and adjusting the current power of the burner in working state, the current power of the burner in working state is made less than or equal to the maximum power of the burner set, and the sum of the current powers of multiple burners in working state is less than or equal to the maximum total power of the multiple burners set; the induction cooker can heat smoothly and continuously, and can avoid entering the IGBT high temperature protection mode under high voltage conditions, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0031] Figure 1 is a step diagram of a power interlocking method provided in an embodiment of the present application;

[0032] Figure 2 It is a sub-step diagram of step S200;

[0033] Figure 3 is a step diagram of step S300;

[0034] Figure 4 is a step diagram of step S400;

[0035] Figure 5 is a step diagram of step S511, step S512 and step S513;

[0036] Figure 6 is a step diagram of step S521 and step S522;

[0037] Figure 7 It is a structural diagram of the burner head of an induction cooker. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0039] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and the like in the specification, claims, or accompanying drawings are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0040] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0041] An embodiment of the present application provides an induction cooker.

[0042] The induction cooker is provided with a plurality of burners and a controller 10 .

[0043] The induction cooker is provided with a display device, which is specifically a touch screen.

[0044] Reference Figure 7The induction cooker's burner is equipped with an IGBT drive circuit 30, a coil disk L, a resonant capacitor C1, a resonant capacitor C2, and a relay 20. The two ends of the coil disk L are connected to the two ends of the resonant capacitor C1, the other end of the resonant capacitor C1 is connected to a port of the controller 10, and the resonant capacitor C2 is connected in series with the relay 20 and then in parallel with the resonant capacitor C1. The IGBT drive circuit 30 includes an IGBT transistor, the gate G of which is connected to another port of the controller 10, the collector C of the IGBT transistor is connected to one end of the resonant capacitor C2, and the emitter E of the IGBT transistor is connected to another port of the controller 10.

[0045] The induction cooker applies the following power interlock method.

[0046] Reference Figure 1 , power interlock methods include:

[0047] Step S110, obtaining the preset maximum power of each burner;

[0048] Step S120, obtaining the maximum total power of the preset multiple burners;

[0049] Step S130, adjusting the current power of the burner in working state so that the current power of the burner in working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in working state is less than or equal to the maximum total power.

[0050] The maximum power of each burner can be set, limited, selected, and locked by operating a combination of buttons on the touch screen. This allows the induction cooker to heat smoothly and continuously, and prevents the IGBT from entering high-temperature protection mode under high voltage conditions, improving the user experience.

[0051] Specifically, the maximum power of a single burner is set as follows:

[0052] When the induction cooker is turned off, press and hold any "burner" button on the touch screen, then tap the "Timer" button three times to put the induction cooker into the compensation power debugging state. When the induction cooker is in the compensation power debugging state, the induction cooker operates at maximum power; the digital tube displays the compensation power "PX (X range: 0-9)". You can adjust the maximum power of the burner by tapping the "0" and "9" keys, then press the "Power" button to save and exit the compensation power debugging state.

[0053] Likewise, the maximum total power of multiple burners can be set, limited, selected and locked by operating a combination of buttons on the touch screen.

[0054] Specifically, the maximum total power of multiple burners is set as follows:

[0055] With the induction cooker off, press and hold the "Timer" button on the touchscreen display, then tap the "Child Lock" button three times to enter the interlocked power adjustment mode. The digital tubes on burners 2 and 3 will display "Interlocked Power (e.g., "28" represents an interlocked 2800W)" and the double-digit digital tube will flash "Po." Adjust the maximum total power of the burners by tapping the "0" and "9" keys, then press the "Power" button to save.

[0056] For the LC single-tube burner without relay 20 switching resonant capacitor, ensure that the step voltage of the lowest continuous heating power level P5 in the range of 220-230VAC, 240-250VAC, and 260-285VAC is lower than about 100VDC, and the temperature of P5 is not higher than the temperature of the maximum heating power level P9 of 230VAC.

[0057] For a burner with a single LC tube and a resonant capacitor switched by relay 20, ensure that the step voltage of the lowest continuous heating power level P5 within the range of 220-230VAC, 240-250VAC, and 260-285VAC when relay 20 is not energized is lower than approximately 100VDC, and the temperature of level P5 is not higher than the temperature of the 230VAC maximum heating power level P9 when relay 20 is energized; ensure that the step voltage of the continuous heating power level P6 within the range of 220-230VAC, 240-250VAC when relay 20 is energized is lower than approximately 100VDC, and the temperature of level P6 is not higher than the temperature T9 of the 230VAC maximum heating power level P9 when relay 20 is energized. Finally, the power values ​​of levels P5-P9 within the range of 260-285VAC are the same and equal to the power value of level P5.

[0058] In addition, for the LC single-tube burner without relay 20 switching resonant capacitor, for the conventional voltage of 220~250VAC, the power values ​​of gears P6~P8 must be set between the power values ​​of gears P5~P9; for the high voltage of 260~285VAC, the power values ​​of gears P5~P9 are the same and equal to the power value of gear P5, so the high-voltage interlocking power can be achieved lower than the normal-voltage interlocking power.

[0059] For a single-tube LC burner with relay 20 switching the resonant capacitor, for a normal voltage of 220-250VAC, relay 20 is not energized in position P5. However, it is energized in positions P6-P9, causing the power in positions P5-P9 to gradually increase. For a high voltage of 260-285VAC, relay 20 is not energized in positions P5-P9. The power values ​​in positions P5-P9 are the same and equal to that in position P5, thus ensuring that the high-voltage interlocking power is lower than the normal-voltage interlocking power.

[0060] Furthermore, continuous, stable and reliable operation is achieved within a wide voltage range of 85 to 285VAC.

[0061] For example, in a specific embodiment, under a voltage of 220-230VAC, the corresponding relationship between the gear position and power of the induction cooker is shown in Table 1.

[0062] Table 1 Relationship between the gear position and power of the induction cooker with 220-230VAC voltage

[0063]

[0064] Table 2 shows the relationship between the induction cooker's gear position and power at 260-285VAC.

[0065] Table 2 Relationship between the gear position and power of the induction cooker with a voltage of 260-285VAC

[0066]

[0067]

[0068] For step S130, the current power of the burner in working state is adjusted so that the current power of the burner in working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in working state is less than or equal to the maximum total power.

[0069] Reference Figure 2 , further, the power interlocking method further includes:

[0070] Step S210: When the operating voltage of the induction cooker is a first voltage value, controlling the first total power value of the induction cooker to be less than or equal to the maximum total power;

[0071] Step S220: When the operating voltage of the induction cooker is a second voltage value, controlling the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker;

[0072] Among them, the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the second voltage value.

[0073] In this embodiment, the first voltage value is normal voltage, and the second voltage value is high voltage. For example, the first voltage value is 220-230VAC, and the second voltage value is 260-285VAC.

[0074] Specifically, if the maximum total power is set to 2.8 kW, and the power value of the P6 position of the upper left furnace at normal pressure is 1200 W, and the power value of the P6 position of the right furnace is 1600 W, then the sum of the current power of the upper left and right furnaces is 2800 W, which equals the maximum total power. If the power value of the P6 position of the upper left furnace at high pressure is 1200 W, and the power value of the P6 position of the right furnace is 1400 W, then the sum of the current power of the upper left and right furnaces is 2800 W, which is less than the maximum total power.

[0075] If the maximum total power is set to 3.5 kW, and the power value of the upper left furnace at P9 is 1500 W at normal pressure, and the power value of the right furnace at P7 is 1900 W, the total current power of the upper left and right furnaces is 3400 W, which equals the maximum total power. If the power value of the upper left furnace at P9 is 1200 W at high pressure, and the power value of the right furnace at P7 is 1400 W, the total current power of the upper left and right furnaces is 2800 W, which is less than the maximum total power.

[0076] If the maximum total power is set to 6.1 kW, and the power value of the upper left furnace at P9 is 1500 W, the power value of the lower left furnace at P9 is 2000 W, and the power value of the right furnace at P9 is 2600 W, then the total current power of the upper left, lower left, and right furnaces is 6100 W, which equals the maximum total power. If the power value of the upper left furnace at P9 is 1700 W, and the power value of the right furnace at P7 is 1400 W, then the total current power of the upper left and right furnaces is 2800 W, which is less than the maximum total power.

[0077] By analogy, more free combinations can be achieved while meeting safety regulations, improving user experience.

[0078] Under the set interlock power, the power of the whole machine cannot exceed the set maximum total power. If the burner increases the gear to exceed the maximum total power, the buzzer will sound and the gear increase operation will be invalid.

[0079] Reference Figure 3 The power interlocking method further includes: Step S300, when the induction cooker is powered on for the first time, displaying the maximum total power on a display device. This facilitates the user to view and perform corresponding operations. When the induction cooker is powered on for the first time, the induction cooker may be turned on.

[0080] Specifically, after the first power-on, the buzzer beeps briefly, the digital tubes and indicator lights of the display device are all lit up for about 2 seconds (no key action is responded to during the full-bright display process), the software version number is displayed for about 1 second (the burner single-digit digital tube displays "mainboard version number", and the time double-digit digital tube displays "display board version number", such as "1, 1, 1, 1, 01"), and then the mainboard model is displayed for about 1 second ("b, b, b, b, 01"), the interlocking power segment is displayed for about 1 second (the burner digital tube displays "interlocking power", and the double-digit digital tube displays "Po", such as "35, Po" indicates an interlocking power segment of 3500W), the relay 20 is energized, and then the power enters the shutdown state. Among them, the mainboard model A: 2000W / 1500W configuration, b: 2400W / 2000W configuration, C: 2600W / 3000W configuration, and d: 3600W configuration.

[0081] Reference Figure 4 The power interlock method also includes: Step S400, when the maximum total power reaches zero, controlling all burners to be in the off state. This solves the problem of users having long-term power outages and multi-burner stoves in standby mode, sometimes due to external interference such as surges and lightning strikes, causing automatic startup and heating. It also implements a child lock function to prevent children from accidentally turning on the stove.

[0082] Specifically, the maximum total power has multiple options such as "0000", "AA00", "BB00", "CC00", and "DD00". The factory default maximum power is "DD00", where "0000" corresponds to the maximum total power being set to zero.

[0083] Reference Figure 5 , the power interlock method also includes:

[0084] Step S511, obtaining the temperature of the IGBT driving circuit 30;

[0085] Step S512: When the temperature of the IGBT drive circuit 30 is greater than a preset first temperature threshold, or the temperature of the IGBT drive circuit 30 is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit 30 is greater than a preset temperature rise rate threshold, increase the power of the induction cooker;

[0086] Step S513 : When the temperature of the IGBT driving circuit 30 is greater than a preset third temperature threshold, the IGBT driving circuit 30 is turned off, and a fault code corresponding to the IGBT driving circuit 30 is output.

[0087] The third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

[0088] Specifically, in this embodiment, the first temperature threshold is 95 degrees Celsius, the second temperature threshold is 80 degrees Celsius, the third temperature threshold is 105 degrees Celsius, and the temperature rise rate threshold is 15 degrees Celsius per minute.

[0089] Specifically, if the temperature of the IGBT driver circuit 30 is detected to be greater than 80 degrees Celsius, the temperature rise rate of the IGBT driver circuit 30 is greater than 15 degrees Celsius per minute, or the temperature of the IGBT driver circuit 30 is greater than 95 degrees Celsius, the power of the induction cooker is increased, for example, by raising the gear position from P5 to P6. If the temperature of the IGBT driver circuit 30 is greater than 105 degrees Celsius, the IGBT driver circuit 30 is shut down and a fault code corresponding to the IGBT driver circuit 30 is output.

[0090] Reference Figure 6 , step S521, obtaining the step voltage value of the IGBT driving circuit 30 within a preset time interval;

[0091] Step S522: When the step voltage value is greater than the preset step voltage threshold, the power of the induction cooker is increased until the step voltage value meets the preset step voltage range.

[0092] Specifically, in this embodiment, the step voltage threshold is 100 VDC, and the time interval is 100 ms.

[0093] That is, the step voltage value of the IGBT driving circuit 30 within 100ms of the induction cooker startup process is detected. When the step voltage value is greater than 100VDC, the power of the induction cooker is increased until the step voltage value meets the preset step voltage range.

[0094] Through the above settings, continuous high-power stable and reliable heating can be achieved at normal pressure of 220-250VAC, while each burner at high pressure of 260-285VAC uses the corresponding same power for heating in gears P5-P9, realizing the multi-burner stove wide voltage of 85-285VAC to maintain the high-power 2.8-7.2KW interlocking function of IGBT soft switching.

[0095] In an embodiment of the present application, the controller 10 includes an acquisition module and an adjustment module; the acquisition module is used to obtain the preset maximum power of each burner and the preset maximum total power of multiple burners; the adjustment module is used to adjust the current power of the burner in the working state, so that the current power of the burner in the working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in the working state is less than or equal to the maximum total power.

[0096] Furthermore, a display device is connected to the controller 10 , and the display device is used to display the maximum total power when the induction cooker is powered on for the first time.

[0097] Furthermore, the controller 10 is also configured to control all burners to be in an off state when the maximum total power is zero.

[0098] Furthermore, the regulation module is also used to control the first total power value of the induction cooker to be less than or equal to the maximum total power, and to control the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker; wherein the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the second voltage value.

[0099] Furthermore, the controller 10 also includes an IGBT drive circuit 30 control module, which is connected to the IGBT drive circuit 30; the IGBT drive circuit 30 control module is used to obtain the temperature of the IGBT drive circuit 30. When the temperature of the IGBT drive circuit 30 is greater than a preset first temperature threshold, or the temperature of the IGBT drive circuit 30 is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit 30 is greater than the preset temperature rise rate threshold, the power of the induction cooker is increased; when the temperature of the IGBT drive circuit 30 is greater than a preset third temperature threshold, the IGBT drive circuit 30 is turned off and a fault code corresponding to the IGBT drive circuit 30 is output; the step voltage value of the IGBT drive circuit 30 within a preset time interval is obtained; when the step voltage value is greater than the preset step voltage threshold, the power of the induction cooker is increased until the step voltage value meets the preset step voltage range; wherein, the third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

[0100] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

[0101] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A power interlocking method, characterized in that: The power interlocking method is applied to an induction cooker with multiple burners, and the power interlocking method includes: Obtaining the preset maximum power of each of the burners; Obtaining the maximum total power of the plurality of burners; Adjusting the current power of the burner in the working state so that the current power of the burner in the working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in the working state is less than or equal to the maximum total power; When the operating voltage of the induction cooker is a first voltage value, controlling the first total power value of the induction cooker to be less than or equal to the maximum total power; When the operating voltage of the induction cooker is a second voltage value, controlling the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker; Among them, the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target gear when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target gear when the working voltage of the induction cooker is the second voltage value.

2. A power interlocking method according to claim 1, characterized in that: The induction cooker is provided with a display device; the power interlocking method further comprises: When the induction cooker is powered on for the first time, the maximum total power is displayed by the display device.

3. A power interlocking method according to claim 1, characterized in that: The power interlocking method further includes: When the maximum total power is zero, all the burners are controlled to be in a closed state.

4. A power interlocking method according to claim 1, characterized in that: The induction cooker is provided with an IGBT drive circuit; the power interlocking method further comprises: obtaining a temperature of an IGBT drive circuit, and increasing the power of the induction cooker when the temperature of the IGBT drive circuit is greater than a preset first temperature threshold, or when the temperature of the IGBT drive circuit is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit is greater than a preset temperature rise rate threshold; and shutting down the IGBT drive circuit and outputting a fault code corresponding to the IGBT drive circuit when the temperature of the IGBT drive circuit is greater than a preset third temperature threshold; Obtaining a step voltage value of the IGBT drive circuit within a preset time interval, and when the step voltage value is greater than a preset step voltage threshold, increasing the power of the induction cooker until the step voltage value meets a preset step voltage range; The third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

5. An induction cooker, characterized in that: The induction cooker is provided with a plurality of burners and a controller, wherein the controller comprises an acquisition module and an adjustment module; The acquisition module is used to acquire the preset maximum power of each of the burners and the preset maximum total power of the multiple burners; The regulating module is used to regulate the current power of the burner in the working state so that the current power of the burner in the working state is less than or equal to the maximum power, and the sum of the current powers of multiple burners in the working state is less than or equal to the maximum total power; The regulation module is also used to control the first total power value of the induction cooker to be less than or equal to the maximum total power when the working voltage of the induction cooker is a first voltage value, and to control the second total power value of the induction cooker to be less than or equal to the first total power value of the induction cooker when the working voltage of the induction cooker is a second voltage value; wherein, the second voltage value is greater than the first voltage value, the first total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the first voltage value, and the second total power value is the sum of the current powers of all burners in the target position when the working voltage of the induction cooker is the second voltage value.

6. The induction cooker according to claim 5, characterized in that: The induction cooker is provided with a display device; the display device is connected to the controller, and the display device is used to display the maximum total power when the induction cooker is powered on for the first time.

7. The induction cooker according to claim 5, characterized in that: The controller is further configured to control all the burners to be in a closed state when the maximum total power is zero.

8. The induction cooker according to claim 5, characterized in that: The induction cooker is provided with an IGBT drive circuit; the controller further comprises an IGBT drive circuit control module, the IGBT drive circuit control module being connected to the IGBT drive circuit; The IGBT drive circuit control module is used to obtain the temperature of the IGBT drive circuit. When the temperature of the IGBT drive circuit is greater than a preset first temperature threshold, or the temperature of the IGBT drive circuit is greater than a preset second temperature threshold and the temperature rise rate of the IGBT drive circuit is greater than a preset temperature rise rate threshold, the power of the induction cooker is increased. When the temperature of the IGBT drive circuit is greater than a preset third temperature threshold, the IGBT drive circuit is turned off and a fault code corresponding to the IGBT drive circuit is output; the step voltage value of the IGBT drive circuit within a preset time interval is obtained. When the step voltage value is greater than the preset step voltage threshold, the power of the induction cooker is increased until the step voltage value meets the preset step voltage range. The third temperature threshold is greater than the first temperature threshold, and the first temperature threshold is greater than the second temperature threshold.

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