Electric cooker and heating control method thereof

Abstract

The invention belongs to the field of household appliances, and in particular relates to an electric cooker and a heating control method thereof. The electric cooker comprises a pot body, a pot cover, an inner pot and a heater arranged under the inner pot; the inside of the pot body is provided with a control part and a temperature sensor; the control part comprises a main controller, a first timer, a second timer, a temperature incremental memory and a total working time memory; and the main controller is electrically connected with the heater, the temperature sensor, the first timer, the second timer, the temperature incremental memory and the total working time memory respectively. The heating control method comprises a preheating stage A and a heating and temperature rising stage B; and in the heating and temperature rising stage B, the main controller controls the heater to continue heating or to finish the heating and temperature rising stage B according to an inner pot temperature increment delta T correspondingly generated in a unit time delta t timed by the second timer, a temperature increment preset in the temperature incremental memory, a total working time t timed by the first timer and a total working time preset in the total working time memory. The method can accurately judge the quantity and boiling state of food in the cooker, has the advantages of simple control and low cost, and is suitable for various electric stewpots and ceramic pots with separated upper covers.

Description

technical field

[0001] The invention belongs to the field of household electrical appliances, in particular to an electric cooker capable of accurately detecting the temperature and boiling state of food, and also relates to a heating control method of the electric cooker. Background technique

[0002] Computerized electric cooking utensils currently on the market, such as purple casserole, electric rice cooker, etc., generally use a temperature sensor at the bottom of the pot body to sense whether the temperature at the bottom of the pot reaches a preset temperature value, thereby indirectly judging the boiling state of the food. The above temperature preset values ​​are all higher than the boiling point of water. When there is a difference in the amount of cooking, such as cooking a small amount of food, when the temperature at the bottom of the pot reaches the preset temperature value, the food in the pot is often boiling. It is difficult to avoid the phenomenon of overfl...

Examples

Embodiment Construction

[0023] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 , 2 As shown, the purple casserole pot in this embodiment includes: a pot body 1, an upper cover 2, an inner pot 3, a heater 4 for heating the inner pot, a temperature sensor 5 installed in the pot body to detect the temperature at the bottom of the inner pot, and a control unit 11 . Wherein the control unit 11 includes a first timer 6 for timing the total working time t, a second timer 7 for timing the unit time Δt, a main controller 8, preset temperatures corresponding to N different food portion levels Incremental temperature delta memory 9 and total operating time memory 10 .

[0025] A number of temperature increments ΔT corresponding to the front and rear of the inner pot when the second timer 7 counts a unit time Δt (such as 30 seconds) is preset in the temperature increment memory 9 . These temperature increments ΔT ...

technical field

[0001] The invention belongs to the field of household electrical appliances, in particular to an electric cooker capable of accurately detecting the temperature and boiling state of food, and also relates to a heating control method of the electric cooker. Background technique

[0002] Computerized electric cooking utensils currently on the market, such as purple casserole, electric rice cooker, etc., generally use a temperature sensor at the bottom of the pot body to sense whether the temperature at the bottom of the pot reaches a preset temperature value, thereby indirectly judging the boiling state of the food. The above temperature preset values ​​are all higher than the boiling point of water. When there is a difference in the amount of cooking, such as cooking a small amount of food, when the temperature at the bottom of the pot reaches the preset temperature value, the food in the pot is often boiling. It is difficult to avoid the phenomenon of overfl...

Examples

Embodiment Construction

[0023] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 , 2 As shown, the purple casserole pot in this embodiment includes: a pot body 1, an upper cover 2, an inner pot 3, a heater 4 for heating the inner pot, a temperature sensor 5 installed in the pot body to detect the temperature at the bottom of the inner pot, and a control unit 11 . Wherein the control unit 11 includes a first timer 6 for timing the total working time t, a second timer 7 for timing the unit time Δt, a main controller 8, preset temperatures corresponding to N different food portion levels Incremental temperature delta memory 9 and total operating time memory 10 .

[0025] A number of temperature increments ΔT corresponding to the front and rear of the inner pot when the second timer 7 counts a unit time Δt (such as 30 seconds) is preset in the temperature increment memory 9 . These temperature increments ΔT ...

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