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CN-121995777-A - Cooking appliance, control method and control device thereof

CN121995777ACN 121995777 ACN121995777 ACN 121995777ACN-121995777-A

Abstract

The cooking appliance comprises a pot body, an electromagnetic heating device and a bottom temperature detection device, wherein the pot body comprises a non-magnetic pot body substrate and a magnetic conduction layer arranged on the inner side of the pot body substrate; when the heating time reaches the ith preset heating time and the temperature of the pot bottom rises to the ith preset heating stopping temperature, when the ith preset switching condition is met, the (i+1) th sub heating stage is entered, the ith preset switching condition comprises that the heating time reaches the ith preset stopping time and the temperature of the pot bottom drops by the ith preset dropping temperature after the heating is stopped.

Inventors

  • Hu Qiangneng
  • LIU JIN

Assignees

  • 浙江苏泊尔家电制造有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (16)

  1. 1. The control method of the cooking utensil comprises a pot body, an electromagnetic heating device and a bottom temperature detection device, wherein the pot body comprises a non-magnetic-conductive pot body substrate and a magnetic conductive layer arranged on the inner side of the pot body substrate, and the bottom temperature detection device is used for detecting the temperature of a pot bottom at a preset bottom position on the outer side of the pot body substrate, and is characterized by comprising the following steps: n sub-heating stages are sequentially executed in the heating stage executing process, wherein N is a positive integer greater than 1, and N sub-heating stages are sequentially respectively a first sub-heating stage to an N sub-heating stage; When the temperature rise stage of the ith sub-stage is entered, controlling the electromagnetic heating device to heat, wherein i is any value from 1 to (N-1); When the ith preset stop condition is met, controlling the electromagnetic heating device to stop heating, wherein the ith preset stop condition comprises at least one condition that the heating time length reaches the ith preset heating time length and the temperature of the pot bottom rises to the ith preset stop heating temperature; And when the ith preset switching condition is met, entering an (i+1) th sub-heating stage, wherein the ith preset switching condition comprises at least one condition that the heating stopping time reaches the ith preset stopping time, and the temperature of the pot bottom is reduced by the ith preset reducing temperature after heating is stopped.
  2. 2. The control method according to claim 1, characterized by further comprising: When entering the N sub-temperature rising stage, controlling the electromagnetic heating device to heat; When the Nth preset stopping condition is met, entering a boiling maintaining stage; the Nth preset stop condition comprises at least one condition that the boiling of a cooked object in the pot body is detected, the value of N reaches a preset value, the heating duration reaches the Nth preset heating duration, and/or the temperature of the pot bottom rises to the Nth preset stop heating temperature.
  3. 3. The control method according to claim 1, characterized by further comprising: after receiving an instruction for starting cooking, acquiring the bottom temperature as an initial bottom temperature; And determining a first preset stop heating temperature to an (N-1) th preset stop heating temperature based on the initial bottom temperature.
  4. 4. The control method of claim 3, wherein the determining the first preset stop heating temperature to (N-1) th preset stop heating temperature based on the initial bottom temperature comprises: Determining an ambient temperature compensation value based on the initial pan bottom temperature; And taking the sum of the ambient temperature compensation value and the ith preset temperature as the ith preset stop heating temperature.
  5. 5. The control method according to claim 4, wherein the first preset temperature to the (N-1) th preset temperature are gradually increased.
  6. 6. The control method according to claim 5, wherein the first preset decreasing temperature is gradually increased to (N-1) th preset decreasing temperature, and/or, The difference between the (i+1) th preset temperature and the i th preset temperature is greater than the i th preset decreasing temperature.
  7. 7. The control method according to claim 6, wherein, The first preset stop condition is that the heating time reaches a first preset heating time or the temperature of the bottom of the pan rises to a first preset stop heating temperature, wherein the first preset heating time is 5 minutes to 20 minutes, the first preset temperature is 95 ℃ to 105 ℃, and/or, The first preset switching condition is that the heating stopping time reaches a first preset stopping time or the temperature of the pot bottom is reduced by a first preset reducing temperature after heating is stopped, wherein the first preset stopping time is 1-5 minutes, the range of the first preset reducing temperature is 4.6-5.4 ℃, and/or, The second preset stopping condition is that the temperature of the pan bottom is increased to a second preset stopping heating temperature, wherein the second preset temperature is 115-125 ℃, and/or, The second preset switching condition is that the heating stopping time reaches a second preset stopping time or the temperature of the pot bottom is reduced by a second preset reducing temperature after heating is stopped, wherein the second preset stopping time is 2-6 minutes, and the second preset reducing temperature is 5.6-6.4 ℃.
  8. 8. The control method according to claim 1, wherein, If the temperature of the pan bottom is lower than the preset pan bottom temperature, controlling the heating power of the electromagnetic heating device to be in a first preset power range; And if the temperature of the pan bottom is not lower than the preset pan bottom temperature, controlling the heating power of the electromagnetic heating device to be in a second preset power range, wherein the minimum value of the first preset power range is larger than the maximum value of the second preset power range.
  9. 9. The control method according to claim 8, wherein the first preset power range is greater than 80% and less than or equal to the rated power of the electromagnetic heating device, and/or, The second preset power range is 30% -80% of rated power of the electromagnetic heating device.
  10. 10. The control method according to claim 1, characterized by further comprising: Acquiring a first actual heating duration and a first actual stopping duration of the electromagnetic heating device in a first sub-heating stage; And determining the food material amount of the object to be cooked in the pot body at least according to the sum of the first actual heating time length and the first actual stopping time length.
  11. 11. The control method as set forth in claim 10, further comprising: Acquiring a second actual heating duration and a second actual stopping duration of the electromagnetic heating device in a second sub-heating stage; and determining the food amount of the cooked object in the pot body at least according to the sum of the first actual heating duration, the first actual stop duration, the second actual heating duration and the second actual stop duration.
  12. 12. The control method according to claim 1, characterized by further comprising: before executing the heating stage, executing a dry combustion judgment stage; And when the judging result of the dry heating judging stage is that dry heating does not occur, entering a first sub-heating stage of the heating stage.
  13. 13. A control device of a cooking appliance, comprising: A computer readable storage medium and a processor, the computer readable storage medium having stored thereon a computer program to be run by the processor, which when run by the processor causes the processor to execute the control method of the cooking appliance according to any one of claims 1-12.
  14. 14. A cooking appliance, comprising: The cooker body comprises a cooker body base body and a magnetic conduction layer arranged on the inner side of the cooker body base body; An electromagnetic heating device; a bottom temperature detection device for detecting the bottom temperature of the preset bottom position outside the pot body base body, and The control device of the cooking appliance as claimed in claim 13.
  15. 15. The cooking device of claim 14, wherein the material of the pot body base is at least one of ceramic, high temperature glass, siloxane, graphite, and/or, The thickness of the pan body matrix is 5mm-10mm, and/or, A first glaze layer is arranged on the inner side of the pot body base body, the magnetic conduction layer is positioned between the pot body base body and the first glaze layer, and/or, The outside of the pot body matrix is provided with a heat preservation layer and a second glaze layer, wherein the heat preservation layer is positioned between the pot body matrix and the second glaze layer and/or, The magnetic conductive layer is arranged on the inner side of the pot body base body by adopting a meltallizing process.
  16. 16. The cooking device of claim 14, wherein the predetermined bottom position is a bottom center position of an outer side of the base of the pot, and/or, The thickness of the pan body substrate at the preset bottom position is smaller than that of the position adjacent to the preset bottom position.

Description

Cooking appliance, control method and control device thereof Technical Field The present application relates to the field of cooking, and more particularly, to a cooking appliance, and a control method and a control device thereof. Background Electromagnetic induction heating (Induction Heating, abbreviated as IH) is used for heating foods more uniformly by virtue of its high heating speed, and is applied to more and more cooking appliances, such as but not limited to electromagnetic heating electric cookers and the like. The pot body substrate of the cooking utensil uses materials with slower heat conduction, such as but not limited to ceramics, and the like, a layer of magnetic conduction layer is fused on the inner side of the pot body substrate, a coil panel is arranged on the outer side of the pot body substrate, and the coil panel is electrified to enable the magnetic conduction layer to generate heat, so that the object to be cooked in the cooking utensil is heated. However, such cooking appliances are prone to pot overflow during the rinsing stage of the cooking process. Disclosure of Invention The present application has been made in order to solve at least one of the above problems. According to a first aspect of the application, a control method of a cooking appliance is provided, the cooking appliance comprises a pot body, an electromagnetic heating device and a bottom temperature detection device, wherein the pot body comprises a non-magnetic-conductive pot body base body and a magnetic conduction layer arranged on the inner side of the pot body base body, the bottom temperature detection device is used for detecting the temperature of a pot bottom at a preset bottom position on the outer side of the pot body base body, the control method comprises the steps of sequentially executing N sub-heating stages in the heating stage executing process, N is a positive integer larger than 1, the N sub-heating stages are sequentially from a first sub-heating stage to an N sub-heating stage respectively, when the i sub-heating stage is entered, the electromagnetic heating device is controlled to heat, i is any value from 1 to (N-1), when the i preset stop condition is met, the electromagnetic heating device is controlled to stop heating, the i preset stop condition comprises at least one condition that the current heating time length reaches the i preset heating time length, the temperature of the pot bottom rises to the i preset stop temperature, when the i preset stop heating time is met, the i preset heating time length reaches the i preset stop condition, the i preset heating time length reaches the i preset heating time length is at least the moment, and the i preset heating time is reduced when the i preset heating time reaches the i preset heating time length is at the i preset time stop condition, and the i preset time is at the temperature stop time when the i preset time is reached to the temperature stop time when the temperature reaches the i preset time temperature stop time temperature after the temperature reaches the i preset time temperature time to the first temperature stage. The embodiment has the advantages that in the process of executing the heating stage, N sub-heating stages are sequentially executed, and each of the first sub-heating stage to the (N-1) th sub-heating stage comprises a heating stage and a heating stopping stage, so that the heating mode of the whole heating stage adopts a heating mode of alternately cycling heating and heating stopping. When heating, the temperature of the magnetic conduction layer in the electromagnetic heating device can rise rapidly, and under the temperature difference between the magnetic conduction layer and the object to be cooked, the heat of the magnetic conduction layer can be transferred to the object to be cooked, so that the object to be cooked is heated. And after heating for a period of time, the heating is stopped, so that the waste heat of the pot body substrate is fully released to the object to be cooked, the object to be cooked is heated by utilizing the waste heat of the pot body substrate, the phenomenon of pot overflow is prevented, the energy consumption can be reduced, and the phenomenon of burning of the object to be cooked at the bottom of the pot caused by continuous heating can be prevented to influence the cooking taste, thereby improving the cooking effect. The heating time period refers to a heating time period from when the electromagnetic heating device is controlled to start heating to when the electromagnetic heating device is stopped, the heating time period being the latest time from the current time. The heating stopping time period refers to a heating stopping time period from when the electromagnetic heating device is controlled to stop heating to when the electromagnetic heating device starts heating again at the latest time from the current time. In some embodiments, the control method further comprises co