Coil panel control method and device, storage medium, coil panel and cooking equipment

Abstract

The invention provides a control method and device of a coil panel, a storage medium, the coil panel and cooking equipment, and relates to the technical field of cooking equipment. The coil panel comprises a coil, a first sensor and a second sensor, the coil can heat the cooking utensil through thermal radiation and an electromagnetic field, the first sensor is used for detecting a first temperature value of the cooking utensil, the second sensor is used for detecting a second temperature value of the coil, and the control method comprises the steps of obtaining the first temperature value and the second temperature value; determining state information of the cooking utensil according to the first temperature value and the second temperature value; controlling the coil to work according to the state information.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking appliances, and more particularly, to a control method, device, storage medium, coil disk, and cooking appliance for a coil disk. Background Art

[0002] In related technologies, the coil disk can control the heating process by detecting the temperature of the coil. However, a magnetic conductive cooking utensil will heat up under the electromagnetic field generated by the coil, and the detected temperature value cannot accurately reflect the actual state of the cooking utensil, so that the coil disk cannot accurately control the heating process.

[0003] Therefore, how to overcome the above technical defects has become an urgent technical problem to be solved. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of the present invention provides a control method for a coil disk.

[0006] A second aspect of the present invention provides a control device for a coil disk.

[0007] A third aspect of the present invention provides a control device for a coil disk.

[0008] A fourth aspect of the present invention provides a readable storage medium.

[0009] A fifth aspect of the present invention provides a coil disk.

[0010] A sixth aspect of the present invention provides a cooking appliance.

[0011] In view of this, a first aspect of the present invention provides a control method for a coil disk. The coil disk includes a coil, a first sensor, and a second sensor. The coil can heat a cooking utensil through thermal radiation and an electromagnetic field. The first sensor is used to detect a first temperature value of the cooking utensil, and the second sensor is used to detect a second temperature value of the coil. The control method includes:

[0012] Obtaining the first temperature value and the second temperature value;

[0013] Determining state information of the cooking utensil according to the first temperature value and the second temperature value;

[0014] Controlling the coil to operate according to the state information.

[0015] The coil disk defined in this application has electromagnetic heating function and thermal radiation heating function.

[0016] The coil disk includes a support assembly and a coil. The support assembly is the main frame structure of the coil disk, which is used to position, support, and protect other working structures on the coil disk. The coil is arranged on the support assembly. The winding is spirally wound to form a spiral coil. After the spiral coil is energized, it can generate an electromagnetic field above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate heat radiation simultaneously.

[0017] Among them, the intensity of the electromagnetic field and the intensity of heat radiation generated by the coil can be distributed by changing the frequency of the supply current of the coil. The higher the frequency of the alternating current passing through the coil, the higher the impedance will be.

[0018] Specifically, after passing a high-frequency current through the coil, the coil can not only generate an electromagnetic field, but also generate heat due to its own impedance. When the coil assembly resonates with the resonant capacitor at a higher resonant frequency, the impedance value of the coil itself will increase significantly. When the impedance of the coil increases, the heat generated when the current passes through the coil will also increase accordingly. Therefore, enough heat can be generated by the coil itself, and these heats are transferred to the cooking appliance to heat the cooking appliance.

[0019] The coil disk also includes a second sensor. The second sensor is arranged on the support assembly. The second sensor is used to detect the second temperature value of the coil. The coil disk can correspondingly control the heating process through the second temperature value, and the coil disk can also achieve overheat protection of the coil through the second temperature value.

[0020] During the working process, if a non-magnetic cooking appliance is placed above the coil disk, although the non-magnetic cooking appliance cannot generate eddy currents through resonance in the electromagnetic field, the heat radiation generated by the coil can directly heat the non-magnetic cooking appliance, so as to cook food through the high-temperature non-magnetic cooking appliance. And because a large amount of heat radiation is generated by the coil, when the user tosses the pot, the actual heating effect of the coil disk on the cooking appliance will not be affected by the position migration of the cooking appliance, thus simulating the effect of open-fire cooking.

[0021] Correspondingly, if a magnetic cooking appliance is placed above the coil disk, the magnetic cooking appliance will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking appliance gradually heats up to cook food through the high-temperature magnetic cooking appliance. At the same time, the heat radiation generated by the coil can also provide auxiliary heating to the magnetic cooking appliance to increase the heating power. At this time, the temperature of the cooking appliance is higher than the temperature of the coil, and the second temperature value detected by the second sensor is lower than the actual temperature value of the cooking appliance.

[0022] On this basis, the coil disk further includes a first sensor. The first sensor is disposed on the support assembly, and the sensing end of the first sensor faces upward of the coil disk. The first sensor can detect a first temperature value of the cooking appliance, and the first temperature value can directly and accurately reflect the current temperature of the cooking appliance. By jointly controlling the working state of the coil through the first temperature value and the second temperature value, the influence brought by the error between the second temperature value and the actual temperature value of the cooking appliance can be eliminated.

[0023] During the control process, after the coil is powered on, the first temperature value of the cooking appliance is obtained through the first sensor, and the second temperature value of the coil is obtained through the second sensor. After obtaining the first temperature value and the second temperature value, the state information of the cooking appliance is determined through the first temperature value and the second temperature value. The state information includes, but is not limited to, the type information of the cooking appliance, the in-position state information of the cooking appliance, and the heating degree information of the cooking appliance. After determining the state information of the cooking appliance, the working state of the coil is controlled through the state information so that the working state of the coil matches the current state of the cooking appliance.

[0024] For example, the frequency of the supply current of the coil can be changed through the type information of the cooking appliance to reasonably allocate the electromagnetic heating ability and the thermal radiation heating ability of the coil, so as to avoid the cooking appliance not being effectively heated by the coil disk. Or the start and stop of the coil are controlled through the in-position state information of the cooking appliance to avoid energy consumption when the coil disk works in an idle state. Or the start and stop of the coil are controlled through the heating degree information of the cooking appliance to avoid overheating and dry burning of the cooking appliance.

[0025] It can be seen that in this application, the working state of the coil is jointly controlled through the first temperature value of the cooking appliance and the second temperature value of the coil, so that the working state of the coil can match the actual state of the cooking appliance, thereby improving the heating effect of the coil disk on the cooking appliance, realizing the precise control of the coil disk, and thus solving the technical problems existing in the foregoing related technologies. Furthermore, the technical effect of optimizing the control method of the coil disk and improving the heating accuracy of the coil disk is achieved.

[0026] In addition, the control method of the coil disk provided by the present invention may further have the following additional technical features:

[0027] In some technical solutions of the present invention, optionally, the state information includes an in-position state and a non-in-position state. The step of determining the state information of the cooking appliance according to the first temperature value and the second temperature value includes:

[0028] Determine a first temperature rise rate according to the first temperature value, and determine a second temperature rise rate according to the second temperature value;

[0029] Based on the first temperature rise rate being greater than or equal to a first threshold and the second temperature rise rate being less than or equal to a second threshold, determine that the state information is the in-position state;

[0030] Based on the first temperature rise rate being less than the first threshold and the second temperature rise rate being greater than the second threshold, it is determined that the status information is the non-in-place state.

[0031] In this technical solution, the status information of the cooking appliance includes the in-place state and the non-in-place state. When it is determined that the status information is the in-place state, it indicates that the cooking appliance has been placed above the coil disk, and the electromagnetic field and thermal radiation generated by the coil disk can effectively act on the cooking appliance. Correspondingly, when it is determined that the status information is the non-in-place state, it indicates that the cooking appliance is not placed on the coil disk, or the placement position of the cooking appliance has a too large deviation. At this time, the thermal radiation and electromagnetic field generated by the coil disk cannot effectively cover the cooking appliance. On this basis, the steps of determining the status information of the cooking appliance according to the first temperature value and the second temperature value are refined.

[0032] Specifically, after obtaining the first temperature value and the second temperature value, the first temperature rise rate of the space above the coil is determined according to the first temperature value, and the second temperature rise rate of the coil is determined according to the second temperature value. Subsequently, the first temperature rise rate is compared with the first threshold, and the second temperature rise rate is compared with the second threshold. If the comparison result is that the first temperature rise rate is greater than or equal to the first threshold and the second temperature rise rate is less than or equal to the second threshold, it indicates that the cooking appliance has been placed at the predetermined heating position, and the status information is the in-place state. On the contrary, if the comparison result is that the first temperature rise rate is less than the first threshold and the second temperature rise rate is greater than the second threshold, it indicates that there is no cooking appliance on the coil disk or the cooking appliance is offset, and the status information is the non-in-place state.

[0033] Thus, by obtaining the first temperature value and the second temperature value, it can be determined whether the cooking appliance is placed at the predetermined installation position, so as to avoid the coil disk from heating without load or heating in the wrong position, thereby achieving the technical effects of improving the practicality and reliability of the coil disk and enhancing the intelligent level of the coil disk.

[0034] In some technical solutions of the present invention, optionally, the step of controlling the coil to work according to the status information includes:

[0035] Based on the status information being the in-place state, controlling the coil to start working;

[0036] Based on the status information being the non-in-place state, controlling the coil to stop working.

[0037] In this technical solution, when the determined status information is the in-place state, the coil is controlled to start working to execute the predetermined heating process. Correspondingly, when the determined status information is the non-in-place state, the coil is controlled to stop working to avoid the coil disk from heating without load or heating in the wrong position. On the one hand, the energy consumption of the coil disk is reduced, and on the other hand, the user is prevented from being scalded by touching the coil disk that is heating without load. Thus, the technical effects of improving the safety and reliability of the coil disk are achieved.

[0038] In some technical solutions of the present invention, optionally, when the coil is working, the status information further includes a ferromagnetic cooking utensil and a non-ferromagnetic cooking utensil. The step of determining the status information of the cooking utensil according to the first temperature value and the second temperature value includes:

[0039] Based on the first temperature value being less than or equal to the third threshold and the second temperature value being less than or equal to the fourth threshold, determine that the status information is a ferromagnetic cooking utensil;

[0040] Based on the first temperature value being greater than the third threshold and the second temperature value being greater than the fourth threshold, determine that the status information is a non-ferromagnetic cooking utensil.

[0041] In this technical solution, during the operation of the coil, the status information of the cooking utensil includes a ferromagnetic cooking utensil and a non-ferromagnetic cooking utensil. When the status information is a ferromagnetic cooking utensil, it indicates that the currently heated cooking utensil is made of a ferromagnetic material such as metal. The cooking utensil can not only be heated up under the action of the electromagnetic field generated by the coil, but also be heated by the thermal radiation generated by the coil. Correspondingly, when the status information is a non-ferromagnetic cooking utensil, it indicates that the currently heated cooking utensil is made of a non-ferromagnetic material such as ceramics. The electromagnetic field generated by the coil cannot act on the cooking utensil, and the cooking utensil can only be heated by the thermal radiation generated by the coil.

[0042] On this basis, the step of determining the status information of the cooking utensil according to the first temperature value and the second temperature value is refined. Specifically, after obtaining the first temperature value and the second temperature value, compare the first temperature value with the third threshold and compare the second temperature value with the fourth threshold. If the comparison result is that the first temperature value is less than or equal to the third threshold and the second temperature value is less than or equal to the fourth threshold, it indicates that the cooking utensil is made of a ferromagnetic material and the status information is a ferromagnetic cooking utensil. On the contrary, if the comparison result is that the first temperature value is greater than the third threshold and the second temperature value is greater than the fourth threshold, it indicates that the cooking utensil is made of a non-ferromagnetic material and the status information is a non-ferromagnetic cooking utensil.

[0043] Thus, by obtaining the first temperature value and the second temperature value, it can be determined whether the cooking utensil can be heated by the electromagnetic field, so as to accurately allocate the electromagnetic heating capacity and thermal radiation heating capacity of the coil, and further achieve the technical effects of improving the heating efficiency of the coil for cooking utensils of different materials and improving the intelligence level of the coil disc.

[0044] In some technical solutions of the present invention, optionally, the step of controlling the coil to work according to the status information includes:

[0045] Based on the status information being a ferromagnetic cooking utensil, control the coil to execute the first heating mode;

[0046] Based on the first temperature value being greater than or equal to the fifth threshold, control the coil to stop working.

[0047] In this technical solution, when it is determined according to the first temperature value and the second temperature value that the status information indicates a magnetic cooking appliance, the coil is controlled to execute the first heating mode. In the first heating mode, the frequency of the supply current of the coil is relatively low, and the impedance of the corresponding coil is small. At this time, the coil focuses on electromagnetic heating, and the small amount of heat radiation generated only plays an auxiliary role to ensure that the magnetic cooking appliance can quickly heat up.

[0048] During the process of controlling the coil to operate in the first heating mode, the first temperature value is monitored by the first sensor. If the detected first temperature value is greater than or equal to the fifth threshold, it indicates that the temperature of the cooking appliance is too high and there is a risk of dry burning. Immediately, the coil is controlled to stop working.

[0049] It can be seen that this control method can automatically allocate more electromagnetic heating performance to the magnetic cooking appliance and accurately prevent dry burning during the electromagnetic heating process, thereby achieving the technical effects of improving the intelligence level of the coil disk, enhancing the safety and reliability of the coil disk.

[0050] In some technical solutions of the present invention, optionally, the step of controlling the coil to work according to the status information includes:

[0051] Based on the status information indicating a non-magnetic cooking appliance, the coil is controlled to execute the second heating mode;

[0052] Based on the second temperature value being greater than or equal to the sixth threshold, the coil is controlled to stop working.

[0053] In this technical solution, when it is determined according to the first temperature value and the second temperature value that the status information indicates a non-magnetic cooking appliance, the coil is controlled to execute the second heating mode. In the second heating mode, the frequency of the supply current of the coil is relatively high, and the impedance of the corresponding coil is large. At this time, the coil focuses on heat radiation heating, and the cooking appliance can only heat up under the action of a large amount of heat radiation.

[0054] During the process of controlling the coil to operate in the second heating mode, the second temperature value is monitored by the second sensor. If the detected second temperature value is greater than or equal to the sixth threshold, it indicates that the temperature of the cooking appliance is too high and there is a risk of dry burning. Immediately, the coil is controlled to stop working.

[0055] It can be seen that this control method can automatically allocate more heat radiation heating performance to the non-magnetic cooking appliance and accurately prevent dry burning during the heat radiation heating process, thereby achieving the technical effects of improving the intelligence level of the coil disk, enhancing the safety and reliability of the coil disk.

[0056] The second aspect of the present invention provides a control device for a coil disc. The coil disc includes a coil, a first sensor, and a second sensor. The coil can heat a cooking appliance through thermal radiation and an electromagnetic field. The first sensor is used to detect a first temperature value of the cooking appliance, and the second sensor is used to detect a second temperature value of the coil. The control device includes: an acquisition module for acquiring the first temperature value and the second temperature value; a determination module for determining the state information of the cooking appliance according to the first temperature value and the second temperature value; and a control module for controlling the operation of the coil according to the state information.

[0057] The coil disc defined in this application has electromagnetic heating function and thermal radiation heating function.

[0058] The coil disc includes a support assembly and a coil. The support assembly is the main frame structure of the coil disc, which is used to position, support, and protect other working structures on the coil disc. The coil is arranged on the support assembly. The winding is spirally wound to form a spiral coil. After the spiral coil is energized, it can generate an electromagnetic field above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate thermal radiation.

[0059] Among them, the intensity of the electromagnetic field and the intensity of the thermal radiation generated by the coil can be distributed by changing the frequency of the supply current of the coil. The higher the frequency of the alternating current passing through the coil, the higher the impedance will be.

[0060] Specifically, after a high-frequency current is applied to the coil, the coil can not only generate an electromagnetic field, but also generate heat due to its own impedance. When the coil assembly resonates with the resonant capacitor at a higher resonant frequency, the impedance value of the coil itself will increase significantly. When the impedance of the coil increases, the heat generated when the current passes through the coil will also increase accordingly. Therefore, the coil itself can generate sufficient heat, and these heats are transferred to the cooking appliance to heat the cooking appliance.

[0061] The coil disc further includes a second sensor. The second sensor is arranged on the support assembly. The second sensor is used to detect the second temperature value of the coil. The coil disc can control the heating process corresponding to the second temperature value, and the coil disc can also achieve overheat protection of the coil through the second temperature value.

[0062] During the working process, if a non-magnetic cooking appliance is placed above the coil disc, although the non-magnetic cooking appliance cannot generate eddy currents through resonance in the electromagnetic field, the thermal radiation generated by the coil can directly heat the non-magnetic cooking appliance, so as to cook food through the high-temperature non-magnetic cooking appliance. And because a large amount of thermal radiation is generated by the coil, when the user tosses the pan, the actual heating effect of the coil disc on the cooking appliance will not be affected by the position migration of the cooking appliance, thus simulating the effect of open-fire cooking.

[0063] Correspondingly, if a magnetic conductive cooking appliance is placed above the coil disk, the magnetic conductive cooking appliance resonates in the electromagnetic field and generates eddy currents. Under the action of the eddy currents, the magnetic conductive cooking appliance gradually heats up to cook food through the high-temperature magnetic conductive cooking appliance. At the same time, the thermal radiation generated by the coil can also provide auxiliary heating to the magnetic conductive cooking appliance to increase the heating power. At this time, the temperature of the cooking appliance is higher than the temperature of the coil, and the second temperature value detected by the second sensor is lower than the actual temperature value of the cooking appliance.

[0064] On this basis, the coil disk further includes a first sensor. The first sensor is disposed on the support assembly, and the sensing end of the first sensor faces upward above the coil disk. The first sensor can detect the first temperature value of the cooking appliance, and the first temperature value can directly and accurately reflect the current temperature of the cooking appliance. By jointly controlling the working state of the coil through the first temperature value and the second temperature value, the influence brought by the error between the second temperature value and the actual temperature value of the cooking appliance can be eliminated.

[0065] During the control process, after the coil is powered on, the acquisition module acquires the first temperature value of the cooking appliance through the first sensor and acquires the second temperature value of the coil through the second sensor. After obtaining the first temperature value and the second temperature value, the determination module determines the state information of the cooking appliance through the first temperature value and the second temperature value. The state information includes but is not limited to the type information of the cooking appliance, the in-position state information of the cooking appliance, and the heating degree information of the cooking appliance. After determining the state information of the cooking appliance, the control module controls the working state of the coil through the state information so that the working state of the coil matches the current state of the cooking appliance.

[0066] For example, the frequency of the supply current of the coil can be changed through the type information of the cooking appliance to reasonably allocate the electromagnetic heating ability and the thermal radiation heating ability of the coil, so as to avoid the cooking appliance not being effectively heated by the coil disk. Or the start and stop of the coil can be controlled through the in-position state information of the cooking appliance to avoid energy consumption when the coil disk works in an idle state. Or the start and stop of the coil can be controlled through the heating degree information of the cooking appliance to avoid overheating and dry burning of the cooking appliance.

[0067] It can be seen that the present application jointly controls the coil through the first temperature value of the cooking appliance and the second temperature value of the coil, so that the working state of the coil can match the actual state of the cooking appliance, thereby improving the heating effect of the coil disk on the cooking appliance, realizing precise control of the coil disk, and thus solving the technical problems existing in the foregoing related technologies. Furthermore, the technical effect of optimizing the control device of the coil disk and improving the heating accuracy of the coil disk is achieved.

[0068] The third aspect of the present invention provides a control device for a coil disk. The control device for the coil disk includes: a memory in which a program or instruction is stored; a processor that executes the program or instruction stored in the memory to implement the steps of the control method for the coil disk in any of the above technical solutions.

[0069] In this technical solution, a control device for a coil disk is proposed. The control device for the coil disk includes a memory and a processor. The processor can implement the control method for the coil disk in any of the above technical solutions by executing the program or instruction stored in the memory. Therefore, the control device for the coil disk has the advantages of the control method for the coil disk in any of the above technical solutions and can achieve the technical effects that the control method for the coil disk in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0070] The fourth aspect of the present invention provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the control method in any of the above technical solutions are implemented.

[0071] In this technical solution, a readable storage medium is proposed. The readable storage medium stores a program or instruction, and the steps of the control method for the coil disk in any of the above technical solutions can be implemented when the program or instruction is executed by a processor. Therefore, the readable storage medium has the advantages of the control method for the coil disk in any of the above technical solutions and can achieve the technical effects that the control method for the coil disk in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0072] The fifth aspect of the present invention provides a coil disk, which includes: the control device for the coil disk in any of the above technical solutions, and / or the readable storage medium in the above technical solution.

[0073] In this technical solution, a coil disk including the control device in any of the above technical solutions and / or the readable storage medium in the above technical solution is proposed. Therefore, the coil disk has the advantages of the control device in any of the above technical solutions and can achieve the technical effects that the control device in any of the above technical solutions can achieve, and / or the coil disk has the advantages of the readable storage medium in the above technical solution and can achieve the technical effects that the readable storage medium in the above technical solution can achieve. To avoid repetition, it will not be elaborated here.

[0074] In some technical solutions of the present invention, optionally, the coil disk includes: a support assembly; a coil disposed on the support assembly, which can generate heat radiation and an electromagnetic field after being energized, and the heat radiation and the electromagnetic field are used to heat the cooking appliance; a first sensor disposed on the support assembly, and the first sensor is used to detect a first temperature value of the cooking appliance; a second sensor disposed on the support assembly, and the second sensor is used to detect a second temperature value of the coil.

[0075] The coil disk includes a support assembly and a coil. The support assembly is the main frame structure of the coil disk, which is used to position, support and protect other working structures on the coil disk, and the coil is arranged on the support assembly. The winding is spirally wound to form a spiral coil. After the spiral coil is energized, it can generate an electromagnetic field above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate heat radiation.

[0076] The coil disk further includes a second sensor. The second sensor is disposed on the support assembly, and the second sensor is used to detect a second temperature value of the coil. The coil disk can correspondingly control the heating process through the second temperature value, and the coil disk can also achieve overheat protection of the coil through the second temperature value.

[0077] The coil disk further includes a first sensor. The first sensor is disposed on the support assembly, and the sensing end of the first sensor faces upward of the coil disk. The first sensor can detect a first temperature value of the cooking appliance, and the first temperature value can directly and accurately reflect the current temperature of the cooking appliance. The coil disk can cooperatively control the working state of the coil through the first temperature value and the second temperature value.

[0078] Specifically, the raw material of the winding wound into a coil is a high-temperature resistant metal material, and at the same time, the linear expansion coefficient of the high-temperature resistant metal material is relatively low to avoid damage or deformation of the coil at high temperature. Specifically, the coil can be prepared by copper alloy or iron alloy.

[0079] Specifically, the material of the first heat insulation component can be a mixture of white carbon black and carbon silicon stone, or it can be a flexible vacuum silicon heat insulation cotton.

[0080] In some technical solutions of the present invention, optionally, the support assembly includes: a first heat insulation component disposed between the first sensor and the coil; a second heat insulation component, the second heat insulation component includes a communicating receiving groove and a first mounting hole, the coil is disposed in the receiving groove, and the second sensor is at least partially located in the receiving groove; the first heat insulation component is disposed in the receiving groove, and the first heat insulation component is connected to the second heat insulation component, the first heat insulation component surrounds the first mounting hole, and the first sensor passes through the first mounting hole and the first heat insulation component.

[0081] In this technical solution, the coil disk further includes a first heat insulation component, which is arranged on the support component, between the first sensor and the coil. The first heat insulation component can block the heat diffused from the coil to the first sensor, so as to avoid the high-temperature coil interfering with the first sensor, reduce the error between the first temperature value and the actual temperature value of the cooking appliance, and improve the control accuracy of the cooking appliance.

[0082] The support component includes a second heat insulation component. The front side of the second heat insulation component faces the cooking appliance. The coil, the first sensor, the second sensor and the first heat insulation component are all arranged on the front side of the second heat insulation component. The second heat insulation component can inhibit the heat generated by the coil from diffusing in the direction away from the cooking appliance. Thus, on the one hand, it protects the electrical structure and magnetic parts on the back of the second heat insulation component, and on the other hand, it improves the heat radiation heating efficiency of the coil and the heat radiation heating energy efficiency.

[0083] On this basis, the second heat insulation component includes a receiving groove, the coil is arranged in the receiving groove, and at least part of the second sensor extends into the receiving groove to detect the second temperature value of the coil by contacting the gas in the receiving groove. The second heat insulation component is also provided with a first mounting hole, the first mounting hole avoids the coil, the first sensor is mounted in the first mounting hole, the second heat insulation component is connected to the first heat insulation component, and the second heat insulation component surrounds the first mounting hole to form a barrier between the coil and the first mounting hole, reducing the heat transferred from the coil to the first mounting hole, ensuring that the first temperature value can accurately reflect the current temperature of the cooking appliance, and further achieving the technical effect of improving the reliability of the overheat protection function of the cooking appliance.

[0084] Specifically, the material of the second heat insulation component can be a mixture of silica white and silicon carbide, or flexible vacuum silica insulation cotton.

[0085] In some technical solutions of the present invention, optionally, the second heat insulation component further includes a second mounting hole, the second mounting hole communicates with the receiving groove, and the second sensor is arranged in the second mounting hole.

[0086] In this technical solution, the second heat insulation component is provided with a second mounting hole, the second mounting hole communicates with the receiving groove, and the second sensor is embedded in the second mounting hole. By providing the second mounting hole and embedding the second sensor, the space occupied by the second sensor in the receiving groove can be reduced. On the one hand, it provides convenient conditions for the miniaturization design and lightweight design of the coil disk, and on the other hand, it can reduce the possibility of interference between the second sensor and the coil.

[0087] Specifically, the number of the second mounting holes can be multiple, and multiple second sensors are arranged in one-to-one correspondence with the multiple second mounting holes.

[0088] Specifically, the second mounting hole penetrates through the second heat insulation component to facilitate wiring for the second sensor.

[0089] In some technical solutions of the present invention, optionally, the support component further includes: a housing, and a second heat insulation member is disposed inside the housing; a panel, which is connected to the second heat insulation member and / or the housing, the panel covers the accommodation groove, and the panel is used to support the cooking appliance.

[0090] In this technical solution, the support component further includes a housing and a panel. The housing is wrapped outside the second heat insulation member to provide protection outside the second heat insulation member. The panel is connected to at least one of the second heat insulation member and the housing. After assembly, the panel covers the accommodation groove on the second heat insulation member and the annular first heat insulation member to prevent heat from spreading outwards.

[0091] The panel can also support the cooking appliance to be heated. The heat radiation generated by the coil after being energized passes through the panel and acts on the cooking appliance. During this process, the heat radiation is concentrated on the bottom wall of the cooking appliance. The first sensor arranged below the panel directly detects the first temperature value of the bottom wall of the cooking appliance to realize the anti-dry burning function of the cooking appliance.

[0092] Specifically, the panel can be selected as a microcrystalline glass plate.

[0093] Specifically, the support member is selected from non-metallic high-temperature resistant materials, which can be high-temperature resistant plastics such as PET (polyethylene terephthalate) + glass fiber or PPS (polyphenylene sulfide) + glass fiber.

[0094] In some technical solutions of the present invention, optionally, the first sensor includes a thermocouple or a thermistor; the second sensor includes a thermocouple.

[0095] In this technical solution, at least one thermistor is used to closely adhere to the panel to detect the first temperature value at the bottom of the cooking appliance; or at least one thermocouple is arranged in the central area of the coil and is used to closely adhere to the cooking surface panel to detect the first temperature value at the bottom of the cooking appliance.

[0096] At least one thermocouple is used to detect the second temperature value of the coil.

[0097] The sixth aspect of the present invention provides a cooking device, which includes: a main body; a coil disc as in any of the above technical solutions, which is disposed on the main body.

[0098] In this technical solution, a cooking device provided with the coil disc as in any of the above technical solutions is proposed. Therefore, this cooking device has the advantages of the coil disc as in any of the above technical solutions and can achieve the technical effects that the coil disc as in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0099] On this basis, the cooking device further includes a main body, which is the main frame structure of the cooking device. The main body is used to position, support and protect other working structures on the cooking device. The coil disk can be arranged inside the main body, and the coil disk can also be embedded on the top of the main body to heat the cooking utensils placed on the cooking device through the coil disk.

[0100] The additional aspects and advantages of the present invention will become obvious in the following description part, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0102] Figure 1 The flowchart showing the control method of the coil disk according to an embodiment of the present invention;

[0103] Figure 2 The working flowchart showing the coil disk according to an embodiment of the present invention;

[0104] Figure 3 The block diagram showing the control device of the coil disk according to an embodiment of the present invention;

[0105] Figure 4 The block diagram showing the control device of the coil disk according to an embodiment of the present invention;

[0106] Figure 5 The temperature rise schematic diagram showing the coil disk according to an embodiment of the present invention;

[0107] Figure 6 The temperature rise schematic diagram showing the coil disk according to an embodiment of the present invention;

[0108] Figure 7 The temperature rise schematic diagram showing the coil disk according to an embodiment of the present invention;

[0109] Figure 8 The temperature rise schematic diagram showing the coil disk according to an embodiment of the present invention;

[0110] Figure 9 The exploded view showing the coil disk according to an embodiment of the present invention;

[0111] Figure 10 The structural schematic diagram showing the coil disk according to an embodiment of the present invention;

[0112] Figure 11 is Figure 10 The partial enlarged view of the coil disk in area A in the shown embodiment;

[0113] Figure 12 The structural schematic diagram of a cooking device according to an embodiment of the present invention is shown.

[0114] Among them, Figures 9 to 12 The corresponding relationship between the reference numerals and component names in the figure is as follows:

[0115] 100 Coil disk, 110 Support assembly, 111 First heat insulation component, 112 Second heat insulation component, 1122 Accommodation groove, 1124 First mounting hole, 1126 Second mounting hole, 114 Outer shell, 116 Panel, 120 Coil, 130 First sensor, 150 Second sensor, 200 Cooking utensil, 500 Cooking device, 510 Body. Specific embodiments

[0116] In order to more clearly understand the above objects, features, and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0117] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0118] Next, refer to Figures 1 to 12 A control method, device, storage medium, coil disk, and cooking device of the coil disk according to some embodiments of the present invention are described.

[0119] As Figure 1 shown, an embodiment of the present invention provides a control method for a coil disk. The coil disk includes a coil, a first sensor, and a second sensor. The coil can heat a cooking utensil through thermal radiation and an electromagnetic field. The first sensor is used to detect a first temperature value of the cooking utensil, and the second sensor is used to detect a second temperature value of the coil. The control method includes:

[0120] Step 102, obtaining the first temperature value and the second temperature value;

[0121] Step 104, determining the state information of the cooking utensil according to the first temperature value and the second temperature value;

[0122] Step 106, controlling the operation of the coil according to the state information.

[0123] The coil disk defined in the present application has an electromagnetic heating function and a thermal radiation heating function.

[0124] The coil disk includes a support assembly and a coil. The support assembly is the main frame structure of the coil disk, which is used to position, support, and protect other working structures on the coil disk. The coil is arranged on the support assembly. The winding is spirally wound to form a spiral coil. After the spiral coil is energized, it can generate an electromagnetic field above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate heat radiation simultaneously.

[0125] Among them, the intensity of the electromagnetic field and the intensity of heat radiation generated by the coil can be distributed by changing the frequency of the supply current of the coil. The higher the frequency of the alternating current passing through the coil, the higher the impedance will be.

[0126] Specifically, after passing a high-frequency current through the coil, the coil can not only generate an electromagnetic field, but also generate heat due to its own impedance. When the coil assembly resonates with the resonant capacitor at a higher resonant frequency, the impedance value of the coil itself will increase significantly. When the impedance of the coil increases, the heat generated when the current passes through the coil will also increase accordingly. Therefore, enough heat can be generated by the coil itself, and these heats are transferred to the cooking appliance to heat the cooking appliance.

[0127] The coil disk also includes a second sensor. The second sensor is arranged on the support assembly. The second sensor is used to detect the second temperature value of the coil. The coil disk can correspondingly control the heating process through the second temperature value, and the coil disk can also achieve overheat protection of the coil through the second temperature value.

[0128] During the working process, if a non-magnetic cooking appliance is placed above the coil disk, although the non-magnetic cooking appliance cannot generate eddy currents through resonance in the electromagnetic field, the heat radiation generated by the coil can directly heat the non-magnetic cooking appliance, so as to cook food through the high-temperature non-magnetic cooking appliance. And because a large amount of heat radiation is generated by the coil, when the user tosses the pot, the actual heating effect of the coil disk on the cooking appliance will not be affected by the position migration of the cooking appliance, thus simulating the effect of open-fire cooking.

[0129] Correspondingly, if a magnetic cooking appliance is placed above the coil disk, the magnetic cooking appliance will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking appliance gradually heats up to cook food through the high-temperature magnetic cooking appliance. At the same time, the heat radiation generated by the coil can also provide auxiliary heating for the magnetic cooking appliance to increase the heating power. At this time, the temperature of the cooking appliance is higher than the temperature of the coil, and the second temperature value detected by the second sensor is lower than the actual temperature value of the cooking appliance.

[0130] On this basis, the coil disk further includes a first sensor, which is arranged on the support assembly. The sensing end of the first sensor faces upward of the coil disk. The first sensor can detect a first temperature value of the cooking appliance, and the first temperature value can directly and accurately reflect the current temperature of the cooking appliance. By jointly controlling the working state of the coil through the first temperature value and the second temperature value, the influence brought by the error between the second temperature value and the actual temperature value of the cooking appliance can be eliminated.

[0131] During the control process, after the coil is powered on, the first temperature value of the cooking appliance is obtained through the first sensor, and the second temperature value of the coil is obtained through the second sensor. After obtaining the first temperature value and the second temperature value, the state information of the cooking appliance is determined through the first temperature value and the second temperature value. The state information includes, but is not limited to, the type information of the cooking appliance, the in-position state information of the cooking appliance, and the heating degree information of the cooking appliance. After determining the state information of the cooking appliance, the working state of the coil is controlled through the state information so that the working state of the coil matches the current state of the cooking appliance.

[0132] For example, the frequency of the supply current of the coil can be changed through the type information of the cooking appliance to reasonably allocate the electromagnetic heating capacity and the thermal radiation heating capacity of the coil, so as to avoid the cooking appliance not being effectively heated by the coil disk. Or the start and stop of the coil are controlled through the in-position state information of the cooking appliance to avoid energy consumption when the coil disk works in an idle state. Or the start and stop of the coil are controlled through the heating degree information of the cooking appliance to avoid overheating and dry burning of the cooking appliance.

[0133] It can be seen that in this application, the working state of the coil is jointly controlled through the first temperature value of the cooking appliance and the second temperature value of the coil, so that the working state of the coil can match the actual state of the cooking appliance, thereby improving the heating effect of the coil disk on the cooking appliance, realizing the precise control of the coil disk, and thus solving the technical problems existing in the foregoing related technologies. Furthermore, the technical effect of optimizing the control method of the coil disk and improving the heating accuracy of the coil disk is achieved.

[0134] In some embodiments of the present invention, optionally, the state information includes an in-position state and a non-in-position state. The step of determining the state information of the cooking appliance according to the first temperature value and the second temperature value includes:

[0135] Determine a first temperature rise rate according to the first temperature value, and determine a second temperature rise rate according to the second temperature value;

[0136] Based on the first temperature rise rate being greater than or equal to the first threshold and the second temperature rise rate being less than or equal to the second threshold, determine that the state information is the in-position state;

[0137] Based on the first temperature rise rate being less than the first threshold and the second temperature rise rate being greater than the second threshold, determine that the state information is the non-in-position state.

[0138] In this embodiment, the status information of the cooking appliance includes an in-position status and a non-in-position status. When it is determined that the status information is the in-position status, it indicates that the cooking appliance has been placed above the coil plate, and the electromagnetic field and heat radiation generated by the coil plate can effectively act on the cooking appliance. Correspondingly, when it is determined that the status information is the non-in-position status, it indicates that the cooking appliance is not placed on the coil plate, or the placement position of the cooking appliance has too large a deviation, and at this time, the heat radiation and electromagnetic field generated by the coil plate cannot effectively cover the cooking appliance. On this basis, the step of determining the status information of the cooking appliance according to the first temperature value and the second temperature value is refined.

[0139] Specifically, after obtaining the first temperature value and the second temperature value, the first temperature rise rate of the space above the coil is determined according to the first temperature value, and the second temperature rise rate of the coil is determined according to the second temperature value. Subsequently, the first temperature rise rate is compared with the first threshold, and the second temperature rise rate is compared with the second threshold. If the comparison result is that the first temperature rise rate is greater than or equal to the first threshold and the second temperature rise rate is less than or equal to the second threshold, it indicates that the cooking appliance has been placed at the predetermined heating position, and the status information is the in-position status. On the contrary, if the comparison result is that the first temperature rise rate is less than the first threshold and the second temperature rise rate is greater than the second threshold, it indicates that there is no cooking appliance on the coil plate or the cooking appliance is offset, and the status information is the non-in-position status.

[0140] It can be seen that by obtaining the first temperature value and the second temperature value, it can be determined whether the cooking appliance is placed at the predetermined installation position, so as to avoid the coil plate from heating without load or heating in the wrong position, and further achieve the technical effects of improving the practicability and reliability of the coil plate and enhancing the intelligent level of the coil plate.

[0141] As Figure 5 shown, if no cooking appliance is placed after power-on, the temperature of the coil rises quickly and the slope is large. Since there is no radiation object above the coil, the temperature rises slowly and the slope is small.

[0142] The slope of line a is the first temperature rise rate, and the slope of line b is the second temperature rise rate.

[0143] As Figure 6 shown, if a cooking appliance is placed after power-on, the temperature rise of the coil decreases slightly compared with the state without a cooking appliance, and the slope becomes smaller. The temperature rise above the coil rises slightly compared with the state without a cooking appliance, and the slope becomes larger.

[0144] Figure 6 The dotted line pointed by arrow c in

[0145] is the reference temperature rise curve when no cooking appliance is placed.

[0146] In some embodiments of the present invention, optionally, the step of controlling the coil to operate according to the status information includes:

[0147] Based on the status information being the in-position state, controlling the coil to start operating;

[0148] Based on the status information being the non-in-position state, controlling the coil to stop operating.

[0149] In this embodiment, when the determined status information is the in-position state, the coil is controlled to start operating to execute a predetermined heating process. Correspondingly, when the determined status information is the non-in-position state, the coil is controlled to stop operating to avoid the coil disk from heating without a load or heating in a misaligned manner. On the one hand, the energy consumption of the coil disk is reduced, and on the other hand, the user is prevented from being scalded by touching the coil disk that is heating without a load. Furthermore, the technical effects of improving the safety and reliability of the coil disk are achieved.

[0150] In some embodiments of the present invention, optionally, when the coil is operating, the status information further includes a magnetic conductive cooking utensil and a non-magnetic conductive cooking utensil. The step of determining the status information of the cooking utensil according to the first temperature value and the second temperature value includes:

[0151] Based on the first temperature value being less than or equal to the third threshold and the second temperature value being less than or equal to the fourth threshold, determining the status information as a magnetic conductive cooking utensil;

[0152] Based on the first temperature value being greater than the third threshold and the second temperature value being greater than the fourth threshold, determining the status information as a non-magnetic conductive cooking utensil.

[0153] In this embodiment, during the operation of the coil, the status information of the cooking utensil includes a magnetic conductive cooking utensil and a non-magnetic conductive cooking utensil. When the status information is a magnetic conductive cooking utensil, it indicates that the currently heated cooking utensil is made of a magnetic conductive material such as metal. The cooking utensil can not only be heated up under the action of the electromagnetic field generated by the coil, but also be heated by the thermal radiation generated by the coil. Correspondingly, when the status information is a non-magnetic conductive cooking utensil, it indicates that the currently heated cooking utensil is made of a non-magnetic conductive material such as ceramic. The electromagnetic field generated by the coil cannot act on the cooking utensil, and the cooking utensil can only be heated by the thermal radiation generated by the coil.

[0154] On this basis, the steps of determining the status information of the cooking appliance according to the first temperature value and the second temperature value are refined. Specifically, after obtaining the first temperature value and the second temperature value, the first temperature value is compared with a third threshold, and the second temperature value is compared with a fourth threshold. If the comparison result is that the first temperature value is less than or equal to the third threshold and the second temperature value is less than or equal to the fourth threshold, it indicates that the cooking appliance is made of a magnetically conductive material, and the status information is a magnetically conductive cooking appliance. On the contrary, if the comparison result is that the first temperature value is greater than the third threshold and the second temperature value is greater than the fourth threshold, it indicates that the cooking appliance is made of a non-magnetically conductive material, and the status information is a non-magnetically conductive cooking appliance.

[0155] Thus, by obtaining the first temperature value and the second temperature value, it can be determined whether the cooking appliance can be heated by an electromagnetic field, so as to accurately allocate the electromagnetic heating capacity and the thermal radiation heating capacity of the coil, and further achieve the technical effects of improving the heating efficiency of the coil for cooking appliances of different materials and improving the intelligence level of the coil disc.

[0156] As Figure 7 shown, when the cooking appliance is magnetically conductive, the electromagnetic field and the infrared thermal radiation can act on the cooking appliance at the same time, and the temperature value of the coil is lower than that in the pure thermal radiation heating mode. The temperature of the cooking appliance is the same as the protection temperature of a common induction cooker, and the dry-burning protection temperature of the induction cooker is taken.

[0157] Among them, Figure 7 the solid line indicated by the arrow e corresponds to the first temperature value, and the dotted line indicated by the arrow d corresponds to the second temperature value.

[0158] Specifically, if the first temperature value is stable at 130 °C or below, and the second temperature value is stable at 300 °C, it is determined to be a metal pot, and at this time, the dry-burning protection temperature is taken as the dry-burning protection temperature of the induction cooker, which is 250 °C. The dry-burning protection temperature of the induction cooker corresponds to the fifth threshold.

[0159] As Figure 8 shown, when the cooking appliance is non-magnetically conductive, the electromagnetic field cannot act on the cooking appliance, and the cooking appliance can only be heated by infrared thermal radiation. The coil temperature is the same as that in the pure infrared heating mode, and the dry-burning protection temperature of the infrared furnace is taken.

[0160] Among them, Figure 8 the solid line indicated by the arrow e corresponds to the first temperature value, and the dotted line indicated by the arrow d corresponds to the second temperature value.

[0161] If the first temperature value is stable at 220 °C or below, and the second temperature value is stable at 600 °C, it is determined to be a non-metal pot, and at this time, the dry-burning protection temperature is taken as the dry-burning protection temperature of the infrared furnace, which is 750 °C. The dry-burning protection temperature of the infrared furnace corresponds to the sixth threshold.

[0162] In some embodiments of the present invention, optionally, the step of controlling the coil to work according to the state information includes:

[0163] Based on the state information that the cooking appliance is magnetic conductive, the coil is controlled to execute a first heating mode;

[0164] Based on the first temperature value being greater than or equal to the fifth threshold, the control coil stops working.

[0165] In this embodiment, when the status information is determined to be a magnetic cooking utensil based on the first temperature value and the second temperature value, the control coil executes the first heating mode. In the first heating mode, the frequency of the power supply current of the coil is low, and the corresponding impedance of the coil is small. At this time, the coil focuses on electromagnetic heating, and the small amount of heat radiation generated only plays an auxiliary role to ensure that the magnetic cooking utensil can heat up quickly.

[0166] When the control coil is operating in the first heating mode, the first temperature value is monitored by the first sensor. If the detected first temperature value is greater than or equal to the fifth threshold, it means that the temperature of the cooking utensil is too high and there is a risk of dry burning, and the control coil stops working immediately.

[0167] It can be seen that the control method can automatically allocate more electromagnetic heating performance to magnetic cooking utensils, and accurately prevent dry burning during the electromagnetic heating process, thereby achieving the technical effect of improving the intelligence level of the coil disk and improving the safety and reliability of the coil disk.

[0168] In some embodiments of the present invention, optionally, the step of controlling the coil to work according to the state information includes:

[0169] Based on the state information that the cooking appliance is non-magnetic, the coil is controlled to execute a second heating mode;

[0170] Based on the second temperature value being greater than or equal to the sixth threshold, the control coil stops working.

[0171] In this embodiment, when the status information is determined to be a non-magnetic cooking utensil based on the first temperature value and the second temperature value, the control coil executes the second heating mode. In the second heating mode, the frequency of the power supply current of the coil is higher, and the corresponding impedance of the coil is larger. At this time, the coil focuses on thermal radiation heating, and the cooking utensil can only be heated under the action of a large amount of thermal radiation.

[0172] When the control coil is operating in the second heating mode, the second temperature value is monitored by the second sensor. If the detected second temperature value is greater than or equal to the sixth threshold, it means that the temperature of the cooking utensil is too high and there is a risk of dry burning, and the control coil stops working immediately.

[0173] It can be seen that this control method can automatically allocate more heat radiation heating performance to non-magnetic cooking utensils, accurately prevent dry burning during the heat radiation heating process, and further achieve the technical effects of improving the intelligence level of the coil disc, as well as enhancing the safety and reliability of the coil disc.

[0174] As Figure 2 shown, the working process of the coil disc is as follows:

[0175] Step 202, the heating function is started;

[0176] Step 204, is there a cooking utensil?

[0177] If the judgment result is yes, execute Step 206; if the judgment result is no, execute Step 216;

[0178] Step 206, is it a metal cooking utensil?

[0179] If the judgment result is yes, execute Step 208; if the judgment result is no, execute Step 212;

[0180] Step 208, control the coil to perform infrared heating and electromagnetic heating on the cooking utensil simultaneously;

[0181] Step 210, does the first temperature value ≥ 250 °C hold?

[0182] If the judgment result is yes, execute Step 216; if the judgment result is no, execute Step 208;

[0183] Step 212, control the coil to perform infrared heating on the cooking utensil;

[0184] Step 214, does the second temperature value ≥ 750 °C hold?

[0185] If the judgment result is yes, execute Step 216; if the judgment result is no, execute Step 212;

[0186] Step 216, control the coil to stop heating.

[0187] As Figure 3 shown, an embodiment of the present invention provides a control device 300 for a coil disc. The coil disc includes a coil, a first sensor, and a second sensor. The coil can heat a cooking utensil through heat radiation and an electromagnetic field. The first sensor is used to detect the first temperature value of the cooking utensil, and the second sensor is used to detect the second temperature value of the coil. The control device includes: an acquisition module 302 for acquiring the first temperature value and the second temperature value; a determination module 304 for determining the state information of the cooking utensil according to the first temperature value and the second temperature value; and a control module 306 for controlling the operation of the coil according to the state information.

[0188] The coil disk defined in this application has electromagnetic heating function and thermal radiation heating function.

[0189] The coil disk includes a support assembly and a coil. The support assembly is the main frame structure of the coil disk, which is used to position, support and protect other working structures on the coil disk. The coil is arranged on the support assembly. The winding spirally winds out a spiral coil. After the spiral coil is energized, an electromagnetic field can be generated above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate thermal radiation.

[0190] Among them, the intensity of the electromagnetic field and the intensity of the thermal radiation generated by the coil can be allocated by changing the frequency of the supply current of the coil. The higher the frequency of the alternating current passing through the coil, the higher the impedance will be.

[0191] Specifically, after a high-frequency current is passed into the coil, the coil can not only generate an electromagnetic field, but also generate heat due to the action of its own impedance. When the coil assembly resonates with the resonant capacitor at a higher resonant frequency, the impedance value of the coil itself will increase significantly. When the impedance of the coil increases, the heat generated when the current passes through the coil will also increase accordingly. Therefore, the coil itself can generate enough heat, and these heats are transferred to the cooking appliance to heat the cooking appliance.

[0192] The coil disk further includes a second sensor. The second sensor is arranged on the support assembly. The second sensor is used to detect the second temperature value of the coil. The coil disk can correspondingly control the heating process through the second temperature value, and the coil disk can also achieve overheat protection of the coil through the second temperature value.

[0193] During the working process, if a non-magnetic cooking appliance is placed above the coil disk, although the non-magnetic cooking appliance cannot generate eddy currents through resonance in the electromagnetic field, the thermal radiation generated by the coil can directly heat the non-magnetic cooking appliance, so as to cook food through the high-temperature non-magnetic cooking appliance. And because a large amount of thermal radiation is generated by the coil, when the user tosses the pan, the actual heating effect of the coil disk on the cooking appliance will not be affected by the position migration of the cooking appliance, thus simulating the effect of open-fire cooking.

[0194] Correspondingly, if a magnetic cooking appliance is placed above the coil disk, the magnetic cooking appliance will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking appliance is gradually heated up to cook food through the high-temperature magnetic cooking appliance. At the same time, the thermal radiation generated by the coil can also provide auxiliary heating for the magnetic cooking appliance to increase the heating power. At this time, the temperature of the cooking appliance is higher than the temperature of the coil, and the second temperature value detected by the second sensor is lower than the actual temperature value of the cooking appliance.

[0195] On this basis, the coil disk further includes a first sensor. The first sensor is disposed on the support assembly, and the sensing end of the first sensor faces upward of the coil disk. The first sensor can detect a first temperature value of the cooking appliance, and the first temperature value can directly and accurately reflect the current temperature of the cooking appliance. By jointly controlling the working state of the coil through the first temperature value and the second temperature value, the influence brought by the error between the second temperature value and the actual temperature value of the cooking appliance can be eliminated.

[0196] During the control process, after the coil is powered on, the acquisition module 302 acquires the first temperature value of the cooking appliance through the first sensor and acquires the second temperature value of the coil through the second sensor. After acquiring the first temperature value and the second temperature value, the determination module 304 determines the state information of the cooking appliance based on the first temperature value and the second temperature value. The state information includes, but is not limited to, the type information of the cooking appliance, the in-place state information of the cooking appliance, and the heating degree information of the cooking appliance. After determining the state information of the cooking appliance, the control module 306 controls the working state of the coil based on the state information so that the working state of the coil matches the current state of the cooking appliance.

[0197] For example, the frequency of the supply current of the coil can be changed according to the type information of the cooking appliance to reasonably allocate the electromagnetic heating capacity and the thermal radiation heating capacity of the coil, so as to prevent the cooking appliance from not being effectively heated by the coil disk. Or the start and stop of the coil are controlled according to the in-place state information of the cooking appliance to prevent the coil disk from consuming energy when working in an idle state. Or the start and stop of the coil are controlled according to the heating degree information of the cooking appliance to prevent the cooking appliance from overheating and dry burning.

[0198] It can be seen that in this application, the working state of the coil is jointly controlled by the first temperature value of the cooking appliance and the second temperature value of the coil, so that the working state of the coil can match the actual state of the cooking appliance, thereby improving the heating effect of the coil disk on the cooking appliance and realizing the precise control of the coil disk, so as to solve the technical problems existing in the foregoing related technologies. Furthermore, the technical effect of optimizing the control device 300 of the coil disk and improving the heating accuracy of the coil disk is achieved.

[0199] As Figure 4 shown, an embodiment of the present invention provides a control device 400 for a coil disk. The control device 400 for the coil disk includes: a memory 402 in which a program or instruction is stored; a processor 404 that executes the program or instruction stored in the memory 402 to implement the steps of the control method for the coil disk in any of the foregoing embodiments.

[0200] In this embodiment, a control device 400 for a coil disk is proposed. The control device 400 for the coil disk includes a memory 402 and a processor 404. When the processor 404 executes the program or instruction stored in the memory 402, the control method for the coil disk in any of the above embodiments can be implemented. Therefore, the control device 400 for the coil disk has the advantages of the control method for the coil disk in any of the above embodiments, and can achieve the technical effects that the control method for the coil disk in any of the above embodiments can achieve. To avoid repetition, it will not be elaborated here.

[0201] An embodiment of the present invention provides a readable storage medium. A program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, the steps of the control method in any of the above embodiments are implemented.

[0202] In this embodiment, a readable storage medium is proposed. The readable storage medium stores a program or instruction. When the program or instruction is executed by a processor, the steps of the control method for the coil disk in any of the above embodiments can be implemented. Therefore, the readable storage medium has the advantages of the control method for the coil disk in any of the above embodiments, and can achieve the technical effects that the control method for the coil disk in any of the above embodiments can achieve. To avoid repetition, it will not be elaborated here.

[0203] The foregoing control methods can be implemented in various different ways according to specific features and / or example applications. For example, these methods can be implemented by a combination of hardware, firmware, and / or software. For example, in a hardware implementation, the processor can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, electronic devices, other device units for performing the above functions, and / or combinations thereof.

[0204] A readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The readable storage medium can be an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the above devices, but is not limited thereto. A non-exhaustive list of more specific examples of the readable storage medium includes: portable computer floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital versatile disc (DVD), memory cards, floppy disks, encoding mechanical devices (such as punched cards or grooves with raised structures recording instructions), and any suitable combination of the above devices. The readable storage medium used herein should not be construed as a transmission signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media, or electrical signals transmitted through wires, etc.

[0205] An embodiment of the present invention provides a coil disk, which includes: the control device of the coil disk in any of the above embodiments, and / or the readable storage medium in the above embodiments.

[0206] In this embodiment, a coil disk including the control device in any of the above embodiments, and / or the readable storage medium in the above embodiments is proposed. Therefore, the coil disk has the advantages of the control device in any of the above embodiments and can achieve the technical effects that the control device in any of the above embodiments can achieve, and / or the coil disk has the advantages of the readable storage medium in the above embodiments and can achieve the technical effects that the readable storage medium in the above embodiments can achieve. To avoid repetition, it will not be elaborated here.

[0207] As Figure 9 、 Figure 10 and Figure 11 shown, in some embodiments of the present invention, optionally, the coil disk 100 includes: a support assembly 110; a coil 120 disposed on the support assembly 110, and after the coil 120 is energized, it can generate heat radiation and an electromagnetic field, and the heat radiation and the electromagnetic field are used to heat the cooking appliance 200; a first sensor 130 disposed on the support assembly 110, and the first sensor 130 is used to detect a first temperature value of the cooking appliance 200; a second sensor 150 disposed on the support assembly 110, and the second sensor 150 is used to detect a second temperature value of the coil 120.

[0208] The coil disk 100 includes a support assembly 110 and a coil 120. The support assembly 110 is the main frame structure of the coil disk 100, which is used to position, support, and protect other working structures on the coil disk 100. The coil 120 is arranged on the support assembly 110. The winding is spirally wound to form a spiral coil 120. After the spiral coil 120 is energized, it can generate an electromagnetic field above it. At the same time, due to the certain internal resistance of the coil 120, the energized coil 120 can also generate heat radiation simultaneously.

[0209] The coil disk 100 further includes a second sensor 150. The second sensor 150 is arranged on the support assembly 110. The second sensor 150 is used to detect the second temperature value of the coil 120. The coil disk 100 can correspondingly control the heating process according to the second temperature value, and the coil disk 100 can also achieve overheat protection of the coil 120 through the second temperature value.

[0210] The coil disk 100 further includes a first sensor 130. The first sensor 130 is arranged on the support assembly 110. The sensing end of the first sensor 130 faces upward of the coil disk 100. The first sensor 130 can detect the first temperature value of the cooking appliance 200. The first temperature value can directly and accurately reflect the current temperature of the cooking appliance 200. The coil disk 100 can jointly control the working state of the coil 120 through the first temperature value and the second temperature value.

[0211] Specifically, the raw material of the winding that is wound into the coil 120 is a high-temperature resistant metal material, and at the same time, the linear expansion coefficient of this high-temperature resistant metal material is relatively low to avoid damage or deformation of the coil 120 at high temperatures. Specifically, the coil 120 can be prepared from copper alloy or ferroalloy.

[0212] Specifically, the material of the first heat insulation component 111 can be a mixture of silica white and carborundum, or it can be flexible vacuum silica heat insulation cotton.

[0213] Such as Figure 9 、 Figure 10 and Figure 11 As shown in

[0214] In this embodiment, the coil disk 100 further includes a first heat insulation component 111. The first heat insulation component 111 is disposed on the support assembly 110. The first heat insulation component 111 is disposed between the first sensor 130 and the coil 120. The first heat insulation component 111 can block the heat diffused from the coil 120 to the first sensor 130, so as to avoid the high-temperature coil 120 interfering with the first sensor 130, reduce the error between the first temperature value and the actual temperature value of the cooking appliance 200, and improve the control accuracy of the cooking appliance 200.

[0215] The support assembly 110 includes a second heat insulation component 112. The front surface of the second heat insulation component 112 faces the cooking appliance 200. The coil 120, the first sensor 130, the second sensor 150 and the first heat insulation component 111 are all disposed on the front surface of the second heat insulation component 112. The second heat insulation component 112 can inhibit the heat generated by the coil 120 from diffusing in the direction away from the cooking appliance 200. Thus, on the one hand, it protects the electrical structures and magnetic parts on the back surface of the second heat insulation component 112, and on the other hand, it improves the heat radiation heating efficiency of the coil 120 and enhances the heat radiation heating energy efficiency.

[0216] On this basis, the second heat insulation component 112 includes a receiving groove 1122. The coil 120 is arranged in the receiving groove 1122. The second sensor 150 at least partially extends into the receiving groove 1122 to detect the second temperature value of the coil 120 by contacting the gas in the receiving groove 1122. The second heat insulation component 112 is further provided with a first mounting hole 1124. The first mounting hole 1124 avoids the coil 120. The first sensor 130 is mounted in the first mounting hole 1124. The second heat insulation component 112 is connected to the first heat insulation component 111. The second heat insulation component 112 surrounds the first mounting hole 1124 to form a barrier between the coil 120 and the first mounting hole 1124, reducing the heat transferred from the coil 120 to the first mounting hole 1124, ensuring that the first temperature value can accurately reflect the current temperature of the cooking appliance 200, and further achieving the technical effect of improving the reliability of the overheat protection function of the cooking appliance 200.

[0217] Specifically, the material of the second heat insulation component 112 can be a mixture of silica white and carborundum, or it can be a flexible vacuum silica insulation cotton.

[0218] Such as Figure 9 、 Figure 10 and Figure 11 As shown in

[0219] In this embodiment, a second mounting hole 1126 is provided on the second heat insulation member 112. The second mounting hole 1126 communicates with the receiving groove 1122, and the second sensor 150 is embedded in the second mounting hole 1126. By providing the second mounting hole 1126 and embedding the second sensor 150 therein, the space occupied by the second sensor 150 in the receiving groove 1122 can be reduced. On the one hand, it provides convenient conditions for the miniaturization and lightweight design of the coil disk 100. On the other hand, the possibility of interference between the second sensor 150 and the coil 120 can be reduced.

[0220] Specifically, the number of the second mounting holes 1126 can be multiple, and a plurality of second sensors 150 are provided in one-to-one correspondence with the plurality of second mounting holes 1126.

[0221] Specifically, the second mounting hole 1126 penetrates through the second heat insulation member 112 to facilitate wiring for the second sensor 150.

[0222] As Figure 9 、 Figure 10 and Figure 11 shown, in some embodiments of the present invention, optionally, the support assembly 110 further includes: a housing 114, the second heat insulation member 112 is disposed inside the housing 114; a panel 116, connected to the second heat insulation member 112 and / or the housing 114, the panel 116 covers the receiving groove 1122, and the panel 116 is used to support the cooking appliance 200.

[0223] In this embodiment, the support assembly 110 further includes a housing 114 and a panel 116. The housing 114 is wrapped outside the second heat insulation member 112 to provide protection outside the second heat insulation member 112. The panel 116 is connected to at least one of the second heat insulation member 112 and the housing 114. After assembly, the panel 116 covers the receiving groove 1122 on the second heat insulation member 112 and the annular first heat insulation member 111 to prevent heat from diffusing outward.

[0224] The panel 116 can also support the cooking appliance 200 to be heated. After being powered on, the heat radiation generated by the coil 120 passes through the panel 116 and acts on the cooking appliance 200. During this process, the heat radiation acts concentratedly on the bottom wall of the cooking appliance 200. The first sensor 130 disposed below the panel 116 directly detects the first temperature value of the bottom wall of the cooking appliance 200 to implement the anti-dry burning function of the cooking appliance 200.

[0225] Specifically, the panel 116 can be selected as a microcrystalline glass plate.

[0226] Specifically, the support member is selected from non-metallic high-temperature resistant materials, which can be high-temperature resistant plastics such as PET polyethylene terephthalate + glass fiber or PPS polyphenylene sulfide + glass fiber.

[0227] In some embodiments of the present invention, optionally, the first sensor 130 includes a thermocouple or a thermistor; the second sensor 150 includes a thermocouple.

[0228] In this embodiment, at least one thermistor is used to closely contact the panel 116 to detect the first temperature value at the bottom of the cooking appliance 200; or at least one thermocouple is disposed in the central region of the coil 120 to closely contact the cooktop panel 116 to detect the first temperature value at the bottom of the cooking appliance 200.

[0229] At least one thermocouple is used to detect the second temperature value of the coil 120.

[0230] As Figure 12 shown, an embodiment of the present invention provides a cooking device 500, the cooking device 500 includes: a main body 510; a coil disk 100 as in any of the above embodiments, disposed on the main body 510.

[0231] In this embodiment, a cooking device 500 provided with the coil disk 100 as in any of the above embodiments is proposed. Therefore, the cooking device 500 has the advantages of the coil disk 100 as in any of the above embodiments and can achieve the technical effects that the coil disk 100 as in any of the above embodiments can achieve. To avoid repetition, it will not be elaborated here.

[0232] On this basis, the cooking device 500 further includes a main body 510. The main body 510 is the main frame structure of the cooking device 500. The main body 510 is used to position, support and protect other working structures on the cooking device 500. The coil disk 100 can be disposed inside the main body 510, and the coil disk 100 can also be embedded on the top of the main body 510 to heat the cooking appliance 200 placed on the cooking device 500 through the coil disk 100.

[0233] It should be clear that in the claims, the specification and the drawings of the present invention, the term "a plurality of" means two or more, unless otherwise explicitly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. This is only for more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0234] In the claims, the specification and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0235] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A control method for a coil disk, characterized in that, the coil disk includes a coil, a first sensor and a second sensor, the coil can heat a cooking appliance through thermal radiation and electromagnetic fields, the first sensor is used to detect a first temperature value of the cooking appliance, the second sensor is used to detect a second temperature value of the coil, and the control method includes: Obtaining the first temperature value and the second temperature value; Determining the state information of the cooking appliance according to the first temperature value and the second temperature value; Controlling the coil to work according to the state information.

2. The control method for a coil disk according to claim 1, characterized in that, the state information includes an in-place state and a non-in-place state, and the step of determining the state information of the cooking appliance according to the first temperature value and the second temperature value includes: Determining a first temperature rise rate according to the first temperature value, and determining a second temperature rise rate according to the second temperature value; Based on the first temperature rise rate being greater than or equal to a first threshold and the second temperature rise rate being less than or equal to a second threshold, determining that the state information is the in-place state; Based on the first temperature rise rate being less than the first threshold and the second temperature rise rate being greater than the second threshold, determining that the state information is the non-in-place state.

3. The control method for a coil disk according to claim 2, characterized in that, the step of controlling the coil to work according to the state information includes: Based on the state information being the in-place state, controlling the coil to start working; Based on the state information being the non-in-place state, controlling the coil to stop working.

4. The control method for a coil disk according to any one of claims 1 to 3, characterized in that, when the coil is working, the state information further includes a ferromagnetic cooking appliance and a non-ferromagnetic cooking appliance, and the step of determining the state information of the cooking appliance according to the first temperature value and the second temperature value includes: Based on the first temperature value being less than or equal to a third threshold and the second temperature value being less than or equal to a fourth threshold, determining that the state information is the ferromagnetic cooking appliance; Based on the first temperature value being greater than the third threshold and the second temperature value being greater than the fourth threshold, determining that the state information is the non-ferromagnetic cooking appliance.

5. The control method for a coil disk according to claim 4, characterized in that, the step of controlling the coil to work according to the state information includes: Based on the state information being the ferromagnetic cooking appliance, controlling the coil to execute a first heating mode; Based on the first temperature value being greater than or equal to a fifth threshold, controlling the coil to stop working.

6. The control method for a coil disk according to claim 4, characterized in that, the step of controlling the coil to work according to the state information includes: Based on the state information being the non-ferromagnetic cooking appliance, controlling the coil to execute a second heating mode; Based on the second temperature value being greater than or equal to a sixth threshold, controlling the coil to stop working.

7. A control device for a coil disk, characterized in that, The coil disk includes a coil, a first sensor, and a second sensor. The coil can heat a cooking appliance through thermal radiation and an electromagnetic field. The first sensor is used to detect a first temperature value of the cooking appliance, and the second sensor is used to detect a second temperature value of the coil. The control device includes: An acquisition module for acquiring the first temperature value and the second temperature value; A determination module for determining the status information of the cooking appliance according to the first temperature value and the second temperature value; A control module for controlling the operation of the coil according to the status information.

8. A control device for a coil disk, Characterized in that, It includes: A memory in which programs or instructions are stored; A processor that executes the programs or instructions stored in the memory to implement the steps of the control method for the coil disk according to any one of claims 1 to 6.

9. A readable storage medium, Characterized in that, Programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the control method for the coil disk according to any one of claims 1 to 6 above are implemented.

10. A coil disk, Characterized in that, It includes: The control device for the coil disk according to claim 7, and / or The control device for the coil disk according to claim 8, and / or The readable storage medium according to claim 9.

11. The coil disk according to claim 10, Characterized in that, It includes: A support assembly; A coil provided on the support assembly, and the coil can generate thermal radiation and an electromagnetic field after being energized, and the thermal radiation and the electromagnetic field are used to heat a cooking appliance; A first sensor provided on the support assembly, and the first sensor is used to detect a first temperature value of the cooking appliance; A second sensor provided on the support assembly, and the second sensor is used to detect a second temperature value of the coil.

12. The coil disk according to claim 11, Characterized in that, The support assembly includes: A first heat insulation member provided between the first sensor and the coil; A second heat insulation member, the second heat insulation member includes a communicating receiving groove and a first mounting hole, the coil is provided in the receiving groove, and at least a part of the second sensor is located in the receiving groove; The first heat insulation member is provided in the receiving groove, and the first heat insulation member is connected to the second heat insulation member. The first heat insulation member surrounds the first mounting hole, and the first sensor passes through the first mounting hole and the first heat insulation member.

13. The coil disk according to claim 12, Characterized in that, The second heat insulation member further includes a second mounting hole, the second mounting hole is communicated with the receiving groove, and the second sensor is provided in the second mounting hole.

14. The coil disk according to claim 12, Characterized in that, The support assembly further includes: A housing, and the second heat insulation member is provided in the housing; A panel connected to the second heat insulation member and / or the housing, the panel covers the receiving groove, and the panel is used to support the cooking appliance.

15. The coil disk according to any one of claims 11 to 14, characterized in that, the first sensor includes a thermocouple or a thermistor; the second sensor includes a thermocouple.

16. A cooking device, characterized in that, comprising: a body; a coil disk according to any one of claims 10 to 15, provided on the body.

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