A fan control method and an induction cooker

Abstract

The embodiments of the present application provide a fan control method and an induction cooker. The induction cooker has multiple burners. The method includes obtaining the working mode of the induction cooker; obtaining the IGBT temperature and the cooktop temperature of the induction cooker; controlling the rotation speed of the fan according to the working mode, the IGBT temperature, and the cooktop temperature. Considering that multiple burners of the induction cooker work simultaneously, when the temperature of the induction cooker is too high and the induction cooker heats up faster, it is necessary to control the fan to rotate at a higher speed to achieve rapid heat dissipation. When one burner of the induction cooker is working and the temperature of the induction cooker is normal, the fan is controlled to rotate at a lower speed to reduce the impact of noise while not affecting heat dissipation, and the impact of temperature and noise is taken into account when controlling the fan speed.

Description

Technical Field

[0001] The embodiments of the present application relate to, but are not limited to, the field of kitchen utensils, and in particular, to a method for controlling a blower and an induction cooker. Background Art

[0002] When the induction cooker is working, the induction cooker will generate heat, causing the temperature of the induction cooker to rise. A blower is required to blow air for cooling, otherwise the high temperature will damage the internal components of the induction cooker. However, currently, the blower of the induction cooker mainly rotates at a fixed speed for heat dissipation; the blower will generate noise during rotation, and the faster the rotation speed of the blower, the greater the noise generated by the blower, and the long-term high-speed rotation will accelerate the aging of the blower bearing. Summary of the Invention

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

[0004] The embodiments of the present application provide a method for controlling a blower and an induction cooker.

[0005] In an embodiment of the first aspect of the present application, a method for controlling a blower, the method for controlling a blower is applied to an induction cooker having a plurality of burners, and the method for controlling a blower includes:

[0006] Obtain the working mode of the induction cooker;

[0007] Obtain the IGBT temperature and the cooktop temperature of the induction cooker;

[0008] Control the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature.

[0009] In certain embodiments of the first aspect of the present application, the controlling the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature includes:

[0010] When the induction cooker is in the working mode of single-burner operation, and the IGBT temperature and the cooktop temperature meet the first preset condition, control the rotation speed of the blower to be the first speed;

[0011] When the induction cooker is in the working mode of single-burner operation, and the IGBT temperature and the cooktop temperature meet the second preset condition, control the rotation speed of the blower to be the second speed, and the second speed is less than the first speed;

[0012] Wherein, the first preset condition is that the IGBT temperature of the working burner is greater than the preset first IGBT temperature threshold, or the cooktop temperature of the working burner is greater than the preset first cooktop temperature threshold;

[0013] The second preset condition is that the IGBT temperature is less than a preset second IGBT temperature threshold, and the cooktop temperature is less than a preset second cooktop temperature threshold;

[0014] The first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first cooktop temperature threshold is greater than the second cooktop temperature threshold.

[0015] In some embodiments of the first aspect of the present application, controlling the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature includes:

[0016] When the induction cooker is in the working mode of single cooktop operation, and the IGBT temperature and the cooktop temperature do not meet the first preset condition and the second preset condition, the rotation speed of the blower is controlled to remain unchanged.

[0017] In some embodiments of the first aspect of the present application, controlling the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature includes:

[0018] When the induction cooker is in the working mode of multi-cooktop operation, and the IGBT temperature and the cooktop temperature meet the third preset condition, the rotation speed of the blower is controlled to be the third speed;

[0019] When the induction cooker is in the working mode of multi-cooktop operation, and the IGBT temperature and the cooktop temperature meet the fourth preset condition, the rotation speed of the blower is controlled to be the fourth speed, and the fourth speed is less than the third speed;

[0020] Wherein, the third preset condition is that the IGBT temperature of any working cooktop is greater than a preset third IGBT temperature threshold, or the cooktop temperature of any working cooktop is greater than a preset third cooktop temperature threshold;

[0021] The fourth preset condition is that the IGBT temperatures of all working cooktops are less than a preset fourth IGBT temperature threshold, and the cooktop temperatures of all working cooktops are less than a preset fourth cooktop temperature threshold;

[0022] The third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third cooktop temperature threshold is greater than the fourth cooktop temperature threshold.

[0023] In some embodiments of the first aspect of the present application, controlling the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature includes:

[0024] When the induction cooker is in the working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature do not meet the third preset condition and the fourth preset condition, keep the rotation speed of the blower unchanged.

[0025] In an embodiment of the second aspect of the present application, an induction cooker is provided with a plurality of hobs, a blower, and a controller. The hob is provided with an IGBT drive circuit; the controller is connected to the IGBT drive circuit and the blower;

[0026] The controller includes a working mode acquisition module, a first temperature detection module, a second temperature detection module, and a blower speed control module;

[0027] The working mode acquisition module is used to acquire the working mode of the induction cooker;

[0028] The first temperature detection module is used to acquire the IGBT temperature of the induction cooker;

[0029] The second temperature detection module is used to acquire the hob surface temperature of the induction cooker;

[0030] The blower speed control module is used to control the rotation speed of the blower according to the working mode, the IGBT temperature, and the hob surface temperature.

[0031] In certain embodiments of the second aspect of the present application, the blower speed control module is further used for:

[0032] When the induction cooker is in the working mode of single - hob operation, and the IGBT temperature and the hob surface temperature meet the first preset condition, control the rotation speed of the blower to be the first speed;

[0033] When the induction cooker is in the working mode of single - hob operation, and the IGBT temperature and the hob surface temperature meet the second preset condition, control the rotation speed of the blower to be the second speed, and the second speed is less than the first speed;

[0034] Wherein, the first preset condition is that the IGBT temperature of the working hob is greater than the preset first IGBT temperature threshold, or the hob surface temperature of the working hob is greater than the preset first hob surface temperature threshold;

[0035] The second preset condition is that the IGBT temperature is less than the preset second IGBT temperature threshold, and the hob surface temperature is less than the preset second hob surface temperature threshold;

[0036] The first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first hob surface temperature threshold is greater than the second hob surface temperature threshold.

[0037] In certain embodiments of the second aspect of the present application, the fan speed control module is further configured to: when the induction cooker is in a working mode of single hob operation, and the IGBT temperature and the hob surface temperature do not meet the first preset condition and the second preset condition, control the rotation speed of the fan to remain unchanged.

[0038] In certain embodiments of the second aspect of the present application, the fan speed control module is further configured to:

[0039] When the induction cooker is in a working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature meet the third preset condition, control the rotation speed of the fan to be the third speed;

[0040] When the induction cooker is in a working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature meet the fourth preset condition, control the rotation speed of the fan to be the fourth speed, and the fourth speed is less than the third speed;

[0041] Wherein, the third preset condition is that the IGBT temperature of any working hob is greater than a preset third IGBT temperature threshold, or the hob surface temperature of any working hob is greater than a preset third hob surface temperature threshold;

[0042] The fourth preset condition is that the IGBT temperatures of all working hobs are less than a preset fourth IGBT temperature threshold, and the hob surface temperatures of all working hobs are less than a preset fourth hob surface temperature threshold;

[0043] The third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third hob surface temperature threshold is greater than the fourth hob surface temperature threshold.

[0044] In certain embodiments of the second aspect of the present application, the fan speed control module is further configured to: when the induction cooker is in a working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature do not meet the third preset condition and the fourth preset condition, control the rotation speed of the fan to remain unchanged.

[0045] The above - mentioned solution has at least the following beneficial effects: control the rotation speed of the fan according to the working mode, IGBT temperature and hob surface temperature; considering that multiple hobs of the induction cooker work simultaneously, when the temperature of the induction cooker is too high and the induction cooker heats up faster, it is necessary to control the fan to rotate at a higher speed to achieve rapid heat dissipation; when one hob of the induction cooker is working and the temperature of the induction cooker is normal, control the fan to rotate at a lower speed to reduce the influence of noise while not affecting heat dissipation, and take into account the influence of temperature and noise when controlling the fan speed. Description of the Drawings

[0046] 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 to the technical solution of the present application.

[0047] Figure 1 is a step diagram of the fan control method provided by the embodiment of the present application;

[0048] Figure 2 is a step diagram of step S311;

[0049] Figure 3 is a step diagram of step S312;

[0050] Figure 4 is a step diagram of step S313;

[0051] Figure 5 is a step diagram of step S321;

[0052] Figure 6 is a step diagram of step S322;

[0053] Figure 7 is a step diagram of step S323;

[0054] Figure 8 is a structural diagram of the controller of the induction cooker provided by the embodiment of the present application. Detailed implementation manners

[0055] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] It should be noted that although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the device or the order in the flowchart. Terms such as "first" and "second" in the specification, claims or the above-mentioned drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0057] The following further elaborates on the embodiments of the present application with reference to the accompanying drawings.

[0058] The embodiment of the present application provides an induction cooker.

[0059] The induction cooker is provided with a plurality of cooking zones, a fan and a controller 10. The cooking zone is provided with an IGBT drive circuit and a coil disk; the controller 10 is connected to the IGBT drive circuit, the coil disk and the fan. The IGBT drive circuit is provided with an IGBT.

[0060] It is understandable that an induction cooker can be equipped with only one blower, or one blower can be provided for each cooking zone.

[0061] The blower is driven by a blower drive circuit. When there are multiple blowers in the induction cooker, the multiple blowers are connected in parallel and all are driven by the blower drive circuit.

[0062] IGBT (Insulated Gate Bipolar Transistor) is a composite fully controlled voltage-driven power semiconductor device composed of a bipolar transistor and an insulated gate field-effect transistor, combining the advantages of a MOSFET's high input impedance and a power transistor's low conduction voltage drop. The GTR has a low saturation voltage drop and a large current density, but requires a large drive current; the MOSFET has a very small drive power and a fast switching speed, but has a large conduction voltage drop and a small current density. IGBT combines the advantages of the above two devices, with a small drive power and a low saturation voltage drop.

[0063] Referring to Figure 1 , the blower control method includes:

[0064] Step S100, obtaining the working mode of the induction cooker;

[0065] Step S200, obtaining the IGBT temperature and the cooktop temperature of the induction cooker;

[0066] Step S300, controlling the rotation speed of the blower according to the working mode, the IGBT temperature, and the cooktop temperature.

[0067] In this embodiment, the rotation speed of the blower is controlled according to the working mode, the IGBT temperature, and the cooktop temperature; considering that multiple cooking zones of the induction cooker work simultaneously, when the temperature of the induction cooker is too high and the induction cooker heats up faster, it is necessary to control the blower to rotate at a higher speed to achieve rapid heat dissipation; when only one cooking zone of the induction cooker is working and the temperature of the induction cooker is normal, the blower is controlled to rotate at a lower speed to reduce the impact of noise while not affecting heat dissipation, taking into account the impact of both temperature and noise when controlling the blower speed.

[0068] For step S100, when it is detected that only one cooking zone of the induction cooker is working, the induction cooker is in the single-cooking-zone working mode; when it is detected that multiple cooking zones of the induction cooker are working, the induction cooker is in the multi-cooking-zone working mode.

[0069] For step S200, the IGBT temperature and the cooktop temperature of the induction cooker can be obtained through temperature sensors. Further, the IGBT temperature and the cooktop temperature of the working cooking zone are obtained.

[0070] For step S300, referring to Figures 2 to 4, when the induction cooker is in the working mode of single hob operation, control the rotation speed of the fan according to the working mode, IGBT temperature and hob surface temperature, including but not limited to the following steps:

[0071] Step S311, when the induction cooker is in the working mode of single hob operation and the IGBT temperature and hob surface temperature meet the first preset condition, control the rotation speed of the fan to be the first speed;

[0072] Step S312, when the induction cooker is in the working mode of single hob operation and the IGBT temperature and hob surface temperature meet the second preset condition, control the rotation speed of the fan to be the second speed, and the second speed is less than the first speed;

[0073] Step S313, when the induction cooker is in the working mode of single hob operation and the IGBT temperature and hob surface temperature do not meet the first preset condition and the second preset condition, keep the rotation speed of the fan unchanged;

[0074] Wherein, the first preset condition is that the IGBT temperature of the working hob is greater than the preset first IGBT temperature threshold, or the hob surface temperature of the working hob is greater than the preset first hob surface temperature threshold;

[0075] The second preset condition is that the IGBT temperature is less than the preset second IGBT temperature threshold and the hob surface temperature is less than the preset second hob surface temperature threshold;

[0076] The first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first hob surface temperature threshold is greater than the second hob surface temperature threshold.

[0077] Specifically, the first IGBT temperature threshold is A°C, and the second IGBT temperature threshold is C°C; A°C > C°C. The first hob surface temperature threshold is B°C, and the second hob surface temperature threshold is D°C; B°C > D°C.

[0078] When the rotation speed of the fan is the first speed, the fan rotates at a high speed, the induction cooker dissipates heat faster, and the IGBT temperature and hob surface temperature drop faster; when the rotation speed of the fan is the second speed, the fan rotates at a low speed, the induction cooker dissipates heat slower, and the IGBT temperature and hob surface temperature drop slowly or remain unchanged. When the fan rotates at a low speed, the noise of the fan can be significantly reduced.

[0079] For example, in a specific embodiment, A°C = 50°C, C°C = 30°C. B°C = 60°C, D°C = 40°C.

[0080] The first speed is 2500 revolutions per minute, and the second speed is 1500 revolutions per minute.

[0081] It is understandable that the above values cannot limit the specific values of the first IGBT temperature threshold, the second IGBT temperature threshold, the first cooking surface temperature threshold, the second cooking surface temperature threshold, the first rate, and the second rate in the embodiments of the present application.

[0082] That is, when the induction cooker is in the single-cooktop working mode, if the IGBT temperature of the working cooktop is greater than 50°C, or the cooking surface temperature of the working cooktop is greater than 60°C, the induction cooker is in the high-temperature working state at this time, and the fan rotates at 2500 revolutions per minute to quickly reduce the temperature of the induction cooker, reduce the IGBT temperature and the cooking surface temperature.

[0083] When the induction cooker is in the single-cooktop working mode, if the IGBT temperature of the working cooktop is less than 30°C and the cooking surface temperature of the working cooktop is less than 40°C, the induction cooker is in the normal working state at this time, and the fan rotates at a lower rate of 1500 revolutions per minute.

[0084] When the induction cooker is in the single-cooktop working mode and the IGBT temperature and the cooking surface temperature do not meet the above conditions, the current rate of the fan remains unchanged.

[0085] In order to prevent the influence caused by the fluctuations of the IGBT temperature and the cooking surface temperature, an appropriate temperature hysteresis is designed.

[0086] After the cooktop of the induction cooker is turned off, the fan rotates at the second rate for a period of time and then stops rotating to improve the heat dissipation efficiency of the cooktop, reduce the temperature of the cooktop, reduce the temperature of the circuit board, and extend the life of the circuit board.

[0087] In addition, referring to Figures 5 to 7 , when the induction cooker is in the multi-cooktop working mode, the rotation rate of the fan is controlled according to the working mode, the IGBT temperature, and the cooking surface temperature, including but not limited to the following steps:

[0088] Step S321, when the induction cooker is in the multi-cooktop working mode and the IGBT temperature and the cooking surface temperature meet the third preset condition, control the rotation rate of the fan to be the third rate;

[0089] Step S322, when the induction cooker is in the multi-cooktop working mode and the IGBT temperature and the cooking surface temperature meet the fourth preset condition, control the rotation rate of the fan to be the fourth rate, and the fourth rate is less than the third rate;

[0090] Step S323, when the induction cooker is in the multi-cooktop working mode and the IGBT temperature and the cooking surface temperature do not meet the third preset condition and the fourth preset condition, control the rotation rate of the fan to remain unchanged;

[0091] Wherein, the third preset condition is that the IGBT temperature of any working burner is greater than the preset third IGBT temperature threshold, or the surface temperature of any working burner is greater than the preset third surface temperature threshold;

[0092] The fourth preset condition is that the IGBT temperatures of all working burners are less than the preset fourth IGBT temperature threshold, and the surface temperatures of all working burners are less than the preset fourth surface temperature threshold;

[0093] The third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third surface temperature threshold is greater than the fourth surface temperature threshold.

[0094] Specifically, the third IGBT temperature threshold is A °C, and the fourth IGBT temperature threshold is C °C; A °C > C °C. The third surface temperature threshold is B °C, and the fourth surface temperature threshold is D °C; B °C > D °C.

[0095] When the rotation speed of the fan is the third speed, the fan rotates at a high speed, and the electromagnetic cooker dissipates heat faster, and the IGBT temperature and the surface temperature drop faster; when the rotation speed of the fan is the fourth speed, the fan rotates at a low speed, and the electromagnetic cooker dissipates heat slower, and the IGBT temperature and the surface temperature drop slowly or remain unchanged. When the fan rotates at a low speed, the noise of the fan can be significantly reduced.

[0096] For example, in a specific embodiment, A °C = 50 °C, C °C = 30 °C. B °C = 60 °C, D °C = 40 °C.

[0097] The third speed is 2500 revolutions per minute, and the fourth speed is 1500 revolutions per minute.

[0098] It can be understood that the above values cannot limit the specific values of the third IGBT temperature threshold, the fourth IGBT temperature threshold, the third surface temperature threshold, the fourth surface temperature threshold, the third speed, and the fourth speed in the embodiments of the present application.

[0099] For example, the third IGBT temperature threshold can be 55 °C, etc., the fourth IGBT temperature threshold can be 35 °C, etc., the third surface temperature threshold can be 65 °C, etc., the fourth surface temperature threshold can be 45 °C, etc., the third speed can be 2200 revolutions per minute, and the fourth speed is 1300 revolutions per minute.

[0100] The third IGBT temperature threshold, the fourth IGBT temperature threshold, the third surface temperature threshold, the fourth surface temperature threshold, the third speed, and the fourth speed do not need to be correspondingly equal to the first IGBT temperature threshold, the second IGBT temperature threshold, the first surface temperature threshold, the second surface temperature threshold, the first speed, and the second speed.

[0101] Specifically, when the induction cooker is in the working mode of multi-cooktop operation, the working cooktops include Cooktop 1 and Cooktop 2. If the IGBT temperature of Cooktop 1 is greater than 50°C, or the IGBT temperature of Cooktop 2 is greater than 50°C, or the cooktop surface temperature of Cooktop 1 is greater than 60°C, or the cooktop surface temperature of Cooktop 2 is greater than 60°C, the induction cooker is in the high-temperature working state, and the fan rotates at 2500 revolutions per minute to quickly reduce the temperature of the induction cooker, lower the IGBT temperature and the cooktop surface temperature.

[0102] When the induction cooker is in the working mode of multi-cooktop operation, the working cooktops include Cooktop 1 and Cooktop 2. If the IGBT temperatures of Cooktop 1 and Cooktop 2 are less than 30°C, and the cooktop surface temperatures of Cooktop 1 and Cooktop 2 are less than 40°C, the induction cooker is in the normal working state, and the fan rotates at a lower rate of 1500 revolutions per minute.

[0103] When the induction cooker is in the working mode of multi-cooktop operation and the IGBT temperature and the cooktop surface temperature do not meet the above conditions, the current rate of the fan remains unchanged.

[0104] To prevent the influence brought by the fluctuations of the IGBT temperature and the cooktop surface temperature, an appropriate temperature hysteresis is designed.

[0105] After the cooktop of the induction cooker is turned off, the fan rotates at the fourth rate for a period of time and then stops rotating to improve the heat dissipation efficiency of the cooktop, lower the temperature of the cooktop, and lower the temperature of the circuit board to extend the life of the circuit board.

[0106] Through the above control scheme, the problems of fan cooling and noise control are taken into account, and the user experience is improved.

[0107] When the fan rotates at a low rate, the fan uses a common output port software to simulate PWM, the period of the clock signal is TON + TOFF, and the level is 18VDC.

[0108] The status of the fan can be displayed through the display screen, which are the O state, the L state, and the H state. The O state indicates that the fan is off, the L state indicates that the fan rotates at a low rate, and the H state indicates that the fan rotates at a high rate.

[0109] In certain embodiments of the present application, referring to Figure 8 , the controller 10 includes a working mode acquisition module 11, a first temperature detection module 12, a second temperature detection module 13, and a fan speed control module 14; the working mode acquisition module 11 is used to acquire the working mode of the induction cooker; the first temperature detection module 12 is used to acquire the IGBT temperature of the induction cooker; the second temperature detection module is used to acquire the cooktop surface temperature of the induction cooker; the fan speed control module 14 is used to control the rotation speed of the fan according to the working mode, the IGBT temperature, and the cooktop surface temperature.

[0110] In some embodiments of the present application, the fan speed control module 14 is further configured to:

[0111] When the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature meet the first preset condition, control the rotation speed of the fan to be the first speed;

[0112] When the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature meet the second preset condition, control the rotation speed of the fan to be the second speed, and the second speed is less than the first speed;

[0113] Wherein, the first preset condition is that the IGBT temperature of the working hob is greater than the preset first IGBT temperature threshold, or the hob surface temperature of the working hob is greater than the preset first hob surface temperature threshold;

[0114] The second preset condition is that the IGBT temperature is less than the preset second IGBT temperature threshold, and the hob surface temperature is less than the preset second hob surface temperature threshold;

[0115] The first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first hob surface temperature threshold is greater than the second hob surface temperature threshold.

[0116] In some embodiments of the present application, the fan speed control module 14 is further configured to: when the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature do not meet the first preset condition and the second preset condition, control the rotation speed of the fan to remain unchanged.

[0117] In some embodiments of the present application, the fan speed control module 14 is further configured to:

[0118] When the induction cooker is in the working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature meet the third preset condition, control the rotation speed of the fan to be the third speed;

[0119] When the induction cooker is in the working mode of multi - hob operation, and the IGBT temperature and the hob surface temperature meet the fourth preset condition, control the rotation speed of the fan to be the fourth speed, and the fourth speed is less than the third speed;

[0120] Wherein, the third preset condition is that the IGBT temperature of any working hob is greater than the preset third IGBT temperature threshold, or the hob surface temperature of any working hob is greater than the preset third hob surface temperature threshold;

[0121] The fourth preset condition is that the IGBT temperatures of all working hobs are less than the preset fourth IGBT temperature threshold, and the hob surface temperatures of all working hobs are less than the preset fourth hob surface temperature threshold;

[0122] The third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third cooking surface temperature threshold is greater than the fourth cooking surface temperature threshold.

[0123] In some embodiments of the present application, the fan speed control module 14 is further configured to: when the induction cooker is in a working mode with multiple cooking zones and the IGBT temperature and the cooking surface temperature do not meet the third preset condition and the fourth preset condition, keep the rotation speed of the fan unchanged.

[0124] It can be understood that the working mode acquisition module 11, the first temperature detection module 12, the second temperature detection module 13, and the fan speed control module 14 of the controller 10 correspond one by one to the steps of the above-mentioned fan control method, have the same technical solutions, can solve the same technical problems, and can bring the same technical effects.

[0125] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that: various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0126] The above is a specific description of the preferred embodiments of the present application, but the present application is not limited to the embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present application, and these equivalent deformations or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A fan control method, characterized in that, the fan control method is applied to an induction cooker with multiple burners, and the fan control method includes: obtaining the working mode of the induction cooker; obtaining the IGBT temperature and the cooktop temperature of the induction cooker; controlling the rotation speed of the fan according to the working mode, the IGBT temperature and the cooktop temperature; wherein, the controlling the rotation speed of the fan according to the working mode, the IGBT temperature and the cooktop temperature includes: when the induction cooker is in the working mode of multiple burners working, and the IGBT temperature and the cooktop temperature meet the third preset condition, controlling the rotation speed of the fan to be the third speed; when the induction cooker is in the working mode of multiple burners working, and the IGBT temperature and the cooktop temperature meet the fourth preset condition, controlling the rotation speed of the fan to be the fourth speed, and the fourth speed is less than the third speed; wherein, the third preset condition is that the IGBT temperature of any working burner is greater than the preset third IGBT temperature threshold, or the cooktop temperature of any working burner is greater than the preset third cooktop temperature threshold; the fourth preset condition is that the IGBT temperatures of all working burners are less than the preset fourth IGBT temperature threshold, and the cooktop temperatures of all working burners are less than the preset fourth cooktop temperature threshold; the third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third cooktop temperature threshold is greater than the fourth cooktop temperature threshold.

2. The fan control method according to claim 1, characterized in that, the controlling the rotation speed of the fan according to the working mode, the IGBT temperature and the cooktop temperature includes: when the induction cooker is in the working mode of a single burner working, and the IGBT temperature and the cooktop temperature meet the first preset condition, controlling the rotation speed of the fan to be the first speed; when the induction cooker is in the working mode of a single burner working, and the IGBT temperature and the cooktop temperature meet the second preset condition, controlling the rotation speed of the fan to be the second speed, and the second speed is less than the first speed; wherein, the first preset condition is that the IGBT temperature of the working burner is greater than the preset first IGBT temperature threshold, or the cooktop temperature of the working burner is greater than the preset first cooktop temperature threshold; the second preset condition is that the IGBT temperature is less than the preset second IGBT temperature threshold, and the cooktop temperature is less than the preset second cooktop temperature threshold; the first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first cooktop temperature threshold is greater than the second cooktop temperature threshold.

3. The fan control method according to claim 2, characterized in that, the controlling the rotation speed of the fan according to the working mode, the IGBT temperature and the cooktop temperature includes: When the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature do not meet the first preset condition and the second preset condition, the rotation speed of the blower is controlled to remain unchanged.

4. A blower control method according to claim 3, wherein, the controlling the rotation speed of the blower according to the working mode, the IGBT temperature and the hob surface temperature includes: When the induction cooker is in the working mode of multi-hob operation, and the IGBT temperature and the hob surface temperature do not meet the third preset condition and the fourth preset condition, the rotation speed of the blower is controlled to remain unchanged.

5. An induction cooker, wherein, the induction cooker is provided with a plurality of hobs, a blower and a controller, and the hob is provided with an IGBT drive circuit; the controller is connected to the IGBT drive circuit and the blower; the controller includes a working mode acquisition module, a first temperature detection module, a second temperature detection module and a blower speed control module; the working mode acquisition module is used to acquire the working mode of the induction cooker; the first temperature detection module is used to acquire the IGBT temperature of the induction cooker; the second temperature detection module is used to acquire the hob surface temperature of the induction cooker; the blower speed control module is used to control the rotation speed of the blower according to the working mode, the IGBT temperature and the hob surface temperature; wherein, the blower speed control module is further used for: When the induction cooker is in the working mode of multi-hob operation, and the IGBT temperature and the hob surface temperature meet the third preset condition, controlling the rotation speed of the blower to be the third speed; When the induction cooker is in the working mode of multi-hob operation, and the IGBT temperature and the hob surface temperature meet the fourth preset condition, controlling the rotation speed of the blower to be the fourth speed, and the fourth speed is less than the third speed; wherein, the third preset condition is that the IGBT temperature of any working hob is greater than a preset third IGBT temperature threshold, or the hob surface temperature of any working hob is greater than a preset third hob surface temperature threshold; the fourth preset condition is that the IGBT temperatures of all working hobs are less than a preset fourth IGBT temperature threshold, and the hob surface temperatures of all working hobs are less than a preset fourth hob surface temperature threshold; the third IGBT temperature threshold is greater than the fourth IGBT temperature threshold, and the third hob surface temperature threshold is greater than the fourth hob surface temperature threshold.

6. An induction cooker according to claim 5, wherein, the blower speed control module is further used for: When the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature meet the first preset condition, controlling the rotation speed of the blower to be the first speed; When the induction cooker is in the working mode of single hob operation, and the IGBT temperature and the hob surface temperature meet the second preset condition, controlling the rotation speed of the blower to be the second speed, and the second speed is less than the first speed; Wherein, the first preset condition is that the IGBT temperature of the working burner is greater than a preset first IGBT temperature threshold, or the cooktop temperature of the working burner is greater than a preset first cooktop temperature threshold; The second preset condition is that the IGBT temperature is less than a preset second IGBT temperature threshold, and the cooktop temperature is less than a preset second cooktop temperature threshold; The first IGBT temperature threshold is greater than the second IGBT temperature threshold, and the first cooktop temperature threshold is greater than the second cooktop temperature threshold.

7. An induction cooker according to claim 6, Characterized in that, The fan speed control module is further configured to: when the induction cooker is in a working mode of single burner operation, and the IGBT temperature and the cooktop temperature do not meet the first preset condition and the second preset condition, control the rotation speed of the fan to remain unchanged.

8. An induction cooker according to claim 5, Characterized in that, The fan speed control module is further configured to: when the induction cooker is in a working mode of multi-burner operation, and the IGBT temperature and the cooktop temperature do not meet the third preset condition and the fourth preset condition, control the rotation speed of the fan to remain unchanged.

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