CN108013732B

CN108013732B - Electric cooker and control method thereof

Info

Publication number: CN108013732B
Application number: CN201610957800.1A
Authority: CN
Inventors: 陈奕荣; 李信合; 吴宗林; 杨立萍; 胡小玉; 麦广添; 田茂桥; 揭世亮; 李亚琴; 吕文灿; 区国安; 区永健; 张威威; 何毅东; 李寿军
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2016-11-02
Filing date: 2016-11-02
Publication date: 2020-05-05
Anticipated expiration: 2036-11-02
Also published as: CN108013732A; WO2018082137A1

Abstract

The invention discloses an electric cooker and a control method thereof, wherein the electric cooker comprises a first heater, and the control method comprises the following steps: receiving a cooking instruction input by a user; controlling the first heater to heat at a first average power according to the cooking instruction; obtaining a boiling detection parameter in the electric cooker, and judging whether the boiling detection parameter reaches a preset threshold value; and if the boiling detection parameter reaches a preset threshold value, controlling the first heater to alternately heat at the second average power and the third average power until the cooking is finished. The control method can effectively realize automatic control of cooking firepower, not only meets the requirements of users on rice oil, but also effectively avoids overflow during cooking.

Description

Electric cooker and control method thereof

Technical Field

The invention relates to the technical field of living electric appliances, in particular to a control method of an electric cooker and the electric cooker.

Background

The rice oil contains abundant vitamins (such as vitamin B1, vitamin B2, nicotinic acid (namely vitamin B3) and the like) and inorganic salts (such as ferrophosphorus and the like), also contains certain carbohydrates, fats and the like, and has high nutritional value. However, in daily life, when a user uses the electric cooker to cook porridge, the cooked porridge is not thick enough and cannot form rice oil. If the user wants to taste the rice oil, the user has to manually participate in fire control, which is inconvenient.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above.

Therefore, the first purpose of the invention is to provide a control method of the electric cooker. The control method can realize the automatic control of the rice cooking firepower of the electric rice cooker, meet the use requirements of users, and effectively avoid overflow during cooking.

The second purpose of the invention is to provide an electric cooker.

In order to achieve the above object, a first aspect of the present invention provides a control method for an electric rice cooker, the electric rice cooker including a first heater, the control method including the steps of: receiving a cooking instruction input by a user; controlling the first heater to heat at a first average power according to the cooking instruction; obtaining a boiling detection parameter in the electric cooker, and judging whether the boiling detection parameter reaches a preset threshold value; and if the boiling detection parameter reaches the preset threshold value, controlling the first heater to alternately heat at a second average power and a third average power until the cooking is finished, wherein the second average power is greater than the third average power.

According to the control method of the electric cooker, after a cooking instruction input by a user is received, the first heater of the electric cooker is controlled to heat at the first average power according to the cooking instruction, whether the boiling detection parameter in the electric cooker reaches the preset threshold value is judged in real time, and when the boiling detection parameter reaches the preset threshold value, the first heater is controlled to heat at the second average power and the third average power alternately until the cooking is finished.

In addition, the control method of the electric cooker according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the boiling detection parameter is a temperature of steam inside the rice cooker.

According to one embodiment of the invention, the boiling detection parameter is a bubble vibration detection value, a bubble electrode detection value or a bubble capacitance detection value in the electric cooker.

According to an embodiment of the present invention, the controlling the first heater to alternately perform heating at the second average power and the third average power includes: starting timing after the boiling detection parameter is judged to reach the preset threshold value; judging whether the timing time is an odd number or an even number; if the timing time is the odd number, controlling the first heater to heat at the second average power, and judging whether the timing time reaches a first preset time; and if the timing time does not reach the first preset time and the timing time is the even number, controlling the first heater to heat at a third average power.

According to an embodiment of the invention, the electric cooker further comprises a second heater arranged on the upper cover of the electric cooker, and when the timing time reaches the first preset time, the method further comprises the following steps: and controlling the first heater to stop working, and controlling the second heater to heat at a fourth average power until the timing time reaches a second preset time.

According to an embodiment of the present invention, the first preset time is less than the second preset time.

According to an embodiment of the present invention, when the timing time reaches the first preset time, the method further includes: and sending prompt information to remind the user to open the upper cover of the electric cooker.

According to an embodiment of the present invention, the value range of the first average power is 1050-.

According to an embodiment of the present invention, the first preset time is 30 to 60 minutes, and the second preset time is 60 to 120 minutes.

According to an embodiment of the present invention, the controlling the first heater to alternately perform heating at the second average power and the third average power further includes: starting timing after the boiling detection parameter is judged to reach the preset threshold value; judging whether the timing time is an odd number or an even number; if the timing time is the odd number, controlling the first heater to heat at the third average power, and judging whether the timing time reaches a first preset time; and if the timing time does not reach the first preset time and the timing time is the even number, controlling the first heater to heat with second average power.

In order to achieve the above object, a second aspect of the present invention provides an electric cooker, comprising: a first heater; the receiving module is used for receiving a cooking instruction input by a user; the judging module is used for acquiring boiling detection parameters in the electric cooker and judging whether the boiling detection parameters reach a preset threshold value; a timer; and the control module is respectively connected with the receiving module, the judging module and the timer and is used for controlling the first heater to heat at a first average power according to the cooking instruction and controlling the first heater to heat at a second average power and a third average power alternately when the boiling detection parameter reaches the preset threshold until the cooking is finished, wherein the second average power is greater than the third average power.

According to the electric cooker disclosed by the embodiment of the invention, after the receiving module receives a cooking instruction input by a user, the control module controls the heater of the electric cooker to heat at the first average power according to the cooking instruction, and controls the heater to heat alternately at the second average power and the third average power until the cooking is finished when the boiling detection parameter reaches the preset threshold value, so that the automatic control of the cooking firepower of the electric cooker can be realized, the cooking requirement of the user on rice oil can be met, and the overflow during the cooking can be effectively avoided.

In addition, the electric rice cooker according to the above embodiment of the present invention may further have the following additional technical features:

According to an embodiment of the invention, when the control module controls the first heater to alternately heat at the second average power and the third average power, the control module controls the timer to start timing after judging that the boiling detection parameter reaches the preset threshold; judging whether the timing time is an odd number or an even number; when the timing time is the odd number, controlling the first heater to heat at the second average power, and judging whether the timing time reaches the first preset time; and when the timing time does not reach the first preset time and the timing time is an even number, controlling the first heater to heat at a third average power.

According to an embodiment of the present invention, the electric rice cooker further comprises: and the control module is also used for controlling the first heater to stop working when the timing time reaches the first preset time, and controlling the second heater to heat at a fourth average power until the timing time reaches a second preset time.

According to an embodiment of the present invention, the electric rice cooker further comprises: the prompting module is connected with the control module; the control module is also used for controlling the prompt module to send prompt information to remind the user to open the upper cover of the electric cooker when the timing time reaches the first preset time.

According to an embodiment of the present invention, the first preset time is in a range of 30-60 minutes, and the second preset time is in a range of 60-120 minutes.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a flow chart of a control method of an electric rice cooker according to one embodiment of the present invention;

FIG. 2 is a flow chart of a control method of an electric rice cooker according to another embodiment of the present invention;

FIG. 3 is a block diagram of an electric rice cooker according to an embodiment of the present invention;

fig. 4 is a block diagram of an electric cooker according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

An electric rice cooker and a control method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In an implementation of the invention, the electric cooker comprises a first heater.

Fig. 1 is a flow chart of a control method of an electric rice cooker according to an embodiment of the present invention. As shown in figure 1, the control method of the electric cooker comprises the following steps:

and S101, receiving a cooking instruction input by a user.

Specifically, a rice oil cooking selection key can be arranged on a control panel of the electric cooker, and when a user uses the electric cooker to cook rice oil and porridge, the user can input a corresponding cooking instruction through the rice oil cooking selection key.

And S102, controlling the first heater to heat at a first average power according to the cooking instruction.

In one embodiment of the present invention, the first average power may be calculated by the first operating power and the first power regulation ratio.

Specifically, the first average power is equal to a product of the first operating power and the first power modulation ratio, that is, the first average power is the first operating power and the first power modulation ratio.

Wherein, the value range of the first working power may be 1200-1600W, such as 1600W; the first power modulation ratio may have a value range of 14/16-16/16, such as 15/16, and the first average power has a value range of 1050-1600W, such as 1500W. For example, if the first operating power is 1600W and the first modulation ratio is 15/16, the first average power is 1500W, that is, the first heater heats at 1600 × 15/16 — 1500W.

It can be understood that the first heater is arranged at the bottom of the electric cooker, so as to better realize uniform and rapid heating of food.

S103, obtaining the boiling detection parameters in the electric cooker, and judging whether the boiling detection parameters reach a preset threshold value.

In an embodiment of the present invention, the boiling detection parameter may be a steam temperature in the rice cooker, and the corresponding preset threshold is a temperature threshold.

Specifically, the steam temperature in the electric rice cooker is detected, whether the steam temperature reaches a preset temperature or not is judged, if the steam temperature reaches a temperature threshold value, a boiling stage is judged to be reached in the electric rice cooker, and the next step of control is carried out. Wherein the temperature threshold can be 80-100 deg.C, such as 85 deg.C.

Alternatively, the temperature of the steam inside the rice cooker may be detected by a temperature sensor provided at an upper cover of the rice cooker.

In another embodiment of the present invention, the boiling detection parameter may be a bubble vibration detection value, a bubble electrode detection value or a bubble capacitance detection value in the electric cooker.

Specifically, taking the bubble vibration detection value as an example, an induction device for detecting vibration frequency may be disposed on the inner wall of the electric rice cooker, and the vibration frequency during cooking of the electric rice cooker is detected, so that when the vibration frequency reaches a frequency threshold, it is determined that bubbles exist in the electric rice cooker, that is, the electric rice cooker reaches a boiling stage, and the next control is performed.

Taking the detection value of the bubble electrode as an example, an electrode detection device for detecting the position of the bubble can be arranged in the electric cooker, the position of the bubble in the electric cooker is judged according to the detected electrode conduction state value, the bubble position reaches a preset position, if the bubble position is close to the top position of the current cooking food, the boiling stage in the electric cooker can be judged, and the next control is carried out.

Taking the detection value of the bubble capacitance as an example, a capacitance detection device for detecting the position of the bubble can be arranged in the electric cooker, the position of the bubble in the electric cooker is judged according to the detected capacitance value, the bubble position reaches a preset position, if the bubble position is close to the top position of the current cooking food, the boiling stage in the electric cooker can be judged, and the next control is carried out.

In the embodiment of the invention, the first heater is heated at the first average power until the rice grains are boiled, namely the boiling detection parameters reach the preset threshold value, so that the nutrient components in the rice grains can be separated out.

And S104, if the boiling detection parameter reaches a preset threshold value, controlling the first heater to alternately heat at a second average power and a third average power until the cooking is finished.

The second average power is greater than the third average power, and the second average power and the third average power can be further set to be smaller than the first average power.

In an embodiment of the invention, the second average power may be calculated by the second operating power and the second power modulation ratio.

Specifically, the second average power is equal to a product of the second operating power and the second power modulation ratio, that is, the second average power is the second operating power and the second power modulation ratio.

Wherein, the value range of the second working power can be 300-800W, such as 800W; the second power modulation ratio may have a value in a range of 4/16-6/16, such as 6/16, and the second average power may have a value in a range of 75-300W, such as 300W. For example, when the second operating power is 800W and the second modulation ratio is 6/16, the second average power is 300W, that is, the first heater heats with 800 × (6/16) ═ 300W. In one embodiment of the invention, the third average power is the second operating power and the third modulation ratio.

Wherein, the value range of the second working power can be 300-800W, such as 800W; the value range of the third power regulation ratio can be 1/16-3/16, such as 2/16; the third average power is in the range of 18.75-150W, such as 100W.

Specifically, after a cooking instruction input by a user is received, a first heater of the electric cooker is controlled to heat with a first average power according to the cooking instruction, whether a boiling detection parameter in the electric cooker reaches a preset threshold value or not is judged in real time, namely whether a boiling stage is reached in the electric cooker or not is judged, and when the boiling stage is reached in the electric cooker, the first heater is controlled to heat with a second average power and a third average power alternately until the cooking is finished.

In an embodiment of the present invention, controlling the first heater to alternately perform heating at the second average power and the third average power specifically includes the following steps:

and S201, starting timing after the boiling detection parameter is judged to reach the preset threshold value.

S202, judging whether the timing time is an odd number or an even number.

The unit of the timing time may be minutes or a time period, for example, 30 seconds is one time period.

S203, if the timing time is an odd number, controlling the first heater to heat with the second average power, and judging whether the timing time reaches a first preset time.

Specifically, the heater heats the rice grains at the second average power, so that the rice grains can be boiled violently, and the rice grains are boiled thoroughly.

S204, if the timing time does not reach the first preset time and the timing time is an even number, controlling the first heater to heat with the third average power.

Specifically, the first heater heats at the third average power, and overflow during cooking can be prevented.

Of course, in an embodiment of the present invention, the controlling the first heater to alternately perform the heating at the second average power and the third average power may also be: if the timing time is an odd number, controlling the first heater to heat at the third average power, and judging whether the timing time reaches a first preset time; and if the timing time does not reach the first preset time and is even, controlling the first heater to heat at the second average power.

Further, in one embodiment of the present invention, the rice cooker further comprises a second heater provided at the upper cover.

Specifically, when the timing time reaches a first preset time, the first heater is controlled to stop working, and the second heater is controlled to heat with fourth average power until the timing time reaches a second preset time, so that no condensed water is dropped on the rice oil.

The first preset time is less than the second preset time.

In an embodiment of the present invention, the first preset time may range from 30 to 60 minutes, such as 40 minutes; the second predetermined time may range from 60 minutes to 120 minutes, such as 80 minutes.

In one embodiment of the invention, the fourth average power is the second operating power and the fourth modulation ratio.

Wherein, the value range of the second working power can be 300-800W, such as 800W; the value range of the fourth power regulation ratio can be 8/16-16/16, such as 12/16; the fourth average power may be 150-800W, such as 600W.

In one example of the invention, when the timing time reaches the first preset time, a prompt message can be sent to remind the user to open the upper cover of the electric cooker.

Specifically, when the timing time reaches the first preset time, a prompting device (e.g. a buzzer) arranged on the electric rice cooker can be controlled to emit a prompting message (e.g. a beep sound) to remind a user to open the upper cover so as to ensure that no condensed water drips on the rice oil.

With reference to fig. 1 and 2, according to the above embodiment of the present invention, in a specific example of the present invention, the principle of the rice cooker implementing the rice oil cooking process may be as follows:

s1, pre-boiling stage: after the rice cooker starts the rice oil function cooking, firstly, the working power W1 (namely, the first working power) of the heating system is set, then the rice cooker uses the power regulation ratio N1 (namely, the first power regulation ratio) to cook, namely, the first heater heats at the first average power to separate out the nutritional ingredients in the rice grains.

S2, medium fire boiling stage: when the steam temperature detected by a temperature sensor arranged on the upper cover reaches T (namely a temperature threshold value), the working power of the heating system is switched to W2 (namely a second working power), a timer T1 is started, and when the number of minutes counted by the timer T1 is odd, rice oil cooking is carried out by using a power regulation ratio N2 (namely a second power regulation ratio), namely the first heater is heated at a second average power, so that rice grains are boiled vigorously and boiled thoroughly, wherein N2< N1.

S3, small fire boiling stage: when the timer T1 counts even number of minutes, rice oil cooking is performed by using a power adjusting ratio N3 (namely, a third power adjusting ratio), namely, the first heater heats at a third average power to prevent overflow during cooking, wherein N3< N2.

S2 and S3 are circulated at intervals.

S4, rice oil forming stage: after the timer T1 reaches a set value T1 (first preset time), a timer T2 is started, the first heater arranged at the bottom of the electric cooker is controlled not to work, the second heater arranged at the upper cover is controlled to heat at a power adjusting ratio N4 (namely, a fourth power adjusting ratio), namely, the second heater heats at a fourth average power, and the S4 stage is maintained until the T2 reaches a set value T2 (namely, the second preset time) in timing; or after the timer T1 counts time and reaches a set value T1 (first preset time), the buzzer is controlled to send out a prompt message to remind a user to open the upper cover for natural cooling. That is, the first heater does not heat and only the second heater heats, or the upper cover is opened during the time t1-t2, thereby ensuring that no condensed water is dropped on the rice oil.

To sum up, the method for controlling an electric rice cooker according to the embodiment of the present invention, after receiving a cooking instruction input by a user, controls a first heater of the electric rice cooker to heat with a first average power according to the cooking instruction, and judges whether a boiling detection parameter in the electric rice cooker reaches a preset threshold value in real time, i.e., whether a boiling stage is reached in the electric rice cooker, controls the first heater to heat with a second average power and a third average power alternately when the boiling stage is reached in the electric rice cooker, starts timing, controls the first heater to heat with the second average power when the number of minutes is smaller than a first preset time and is an odd number, controls the first heater to heat with the third average power when the number of minutes is smaller than the first preset time and is an even number, controls only a second heater arranged on an upper cover of the electric rice cooker to heat with a fourth average power when the number of minutes is smaller than the first preset time and is smaller than the second preset time, when the timing time reaches the second preset time, the cooking is finished, or when the timing time reaches the first preset time, prompt information is sent to remind a user to open the upper cover for natural cooling, so that the automatic control of cooking firepower of the electric rice cooker can be realized, the cooking requirement of the user on rice oil is met, and the overflow during the cooking can be effectively avoided.

Fig. 3 is an electric rice cooker according to an embodiment of the present invention. As shown in fig. 3, the rice cooker comprises: a first heater (not shown), a receiving module 10, a judging module 20, a timer 30 and a control module 40.

The receiving module 10 is configured to receive a cooking instruction input by a user. The judging module 20 is used for obtaining the boiling detection parameters in the electric cooker and judging whether the boiling detection parameters reach a preset threshold value. The control module 40 is respectively connected to the receiving module 10, the determining module 20 and the timer 30, and is configured to control the first heater to heat with the first average power according to the cooking instruction, and control the first heater to heat with the second average power and the third average power alternately when the boiling detection parameter in the electric rice cooker reaches a preset threshold value until the cooking is finished, where the second average power is greater than the third average power.

Wherein, the value range of the first working power may be 1200-1600W, such as 1600W; the first power modulation ratio may have a value range of 14/16-16/16, such as 15/16, and the first average power has a value range of 1050-1600W, such as 1500W. For example, if the first operating power is 1600W and the first modulation ratio is 15/16, the first average power is 1500W, that is, the heater heats at 1600 × 15/16 — 1500W.

In the embodiment of the invention, the first heater is heated with the first average power until the boiling stage in the electric rice cooker is reached, namely the boiling detection parameter reaches the preset threshold value, so that the nutrient components in the rice grains can be separated out.

It can be understood that the first heater is arranged at the bottom of the electric cooker to better realize uniform and rapid heating of food, and the second average power and the third average power are both smaller than the first average power.

Specifically, as shown in fig. 4, the electric cooker may further include a detection module 50, and the detection module 50 is configured to detect a steam temperature inside the electric cooker. And then the judging module 20 judges whether the steam temperature reaches the temperature threshold, if the steam temperature reaches the temperature threshold, namely the boiling stage is reached in the electric cooker, the first heater is controlled to alternately heat with the second average power and the third average power until the cooking is finished. Wherein the temperature threshold can be 80-100 deg.C, such as 85 deg.C.

Alternatively, the detection module 50 may be a temperature sensor disposed on the upper cover of the rice cooker, that is, the temperature of the steam in the rice cooker may be detected by the temperature sensor disposed on the upper cover of the rice cooker.

Specifically, taking the bubble vibration detection value as an example, the detection module 50 may be an induction device disposed on an inner wall of the electric cooker for detecting a vibration frequency, and detects the vibration frequency of the electric cooker during cooking, so as to determine that bubbles exist in the electric cooker, that is, the electric cooker reaches a boiling stage when the vibration frequency reaches a frequency threshold.

Taking the detection value of the bubble electrode as an example, the detection module 50 may be an electrode detection device arranged in the electric cooker and used for detecting the position of the bubble, and the position of the bubble in the electric cooker is determined according to the detected electrode conduction state value, and when the position of the bubble reaches a preset position, such as the position of the top of the current cooking food, the boiling stage in the electric cooker can be determined.

Taking the detection value of the bubble capacitance as an example, the detection module 50 may be a capacitance detection device arranged in the electric cooker and used for detecting the position of the bubble, and the position of the bubble in the electric cooker is determined according to the detected capacitance value, and when the position of the bubble reaches a preset position, such as the position close to the top of the current cooking food, the boiling stage in the electric cooker can be determined.

Further, in an embodiment of the present invention, the second average power may be calculated by the second operating power and the second power adjusting ratio.

Wherein, the value range of the second working power can be 300-800W, such as 800W; the second power modulation ratio may have a value in a range of 4/16-6/16, such as 6/16, and the second average power may have a value in a range of 75-300W, such as 300W. For example, when the second operating power is 800W and the second modulation ratio is 6/16, the second average power is 300W, that is, the heater heats with 800 × (6/16) ═ 300W.

In one embodiment of the invention, the third average power is the second operating power and the third modulation ratio.

Specifically, after the receiving module receives a cooking instruction input by a user, the control module controls a first heater of the electric cooker to heat with a first average power according to the cooking instruction, the judging module obtains boiling detection parameters in the electric cooker in real time and judges whether the boiling detection parameters reach a preset threshold value, namely whether a boiling stage is reached in the electric cooker, and when the boiling stage is reached in the electric cooker, the control module controls the first heater to heat alternately with a second average power and a third average power until cooking is finished.

In an embodiment of the present invention, when the control module 40 controls the first heater to alternately perform heating at the second average power and the third average power, the control module 40 controls the timer 30 to start timing after determining that the boiling detection parameter reaches the preset threshold, and determines whether the timing time is odd or even, wherein the timing time may be in units of minutes. And when the timing time is an odd number, controlling the first heater to heat with the second average power, and judging whether the timing time reaches a first preset time. And controlling the first heater to heat at a third average power when the timing time does not reach the first preset time and the timing time is even.

Further, in one embodiment of the present invention, the rice cooker further includes a second heater (not shown) provided at the upper cover.

Specifically, the control module 40 is further configured to control the first heater to stop working when the timing time reaches a first preset time, and control the second heater to heat at a fourth average power until the timing time reaches a second preset time.

In one embodiment of the present invention, the first preset time is less than the second preset time.

Wherein, the value range of the first preset time can be 30-60 minutes, such as 40 minutes; the second predetermined time may range from 60 minutes to 120 minutes, such as 80 minutes.

In one embodiment of the present invention, as shown in fig. 4, the rice cooker further comprises a prompt module 60. The prompting module 60 is connected with the control module 40, and when the timing time reaches a first preset time, the control module 40 is configured to control the prompting module 60 to send a prompting message to remind a user to open the upper cover.

Alternatively, the prompting module 60 may be a buzzer, such as a beep that sounds a "beep" to prompt the user to open the cover of the rice cooker.

With reference to fig. 3 and 4, according to the above embodiment of the present invention, the principle of the rice cooker to realize the rice oil cooking process can be as follows:

S2 and S3 are circulated at intervals.

S4, rice oil forming stage: after the timer T1 reaches a set value T1 (a first preset time), starting a timer T2, controlling the first heater to stop working, controlling the second heater to heat at a power adjustment ratio N4 (i.e., a fourth power adjustment ratio), namely, the second heater heats at a fourth average power, and maintaining the stage S4 until the timer T2 reaches a set value T2 (i.e., a second preset time); or after the timer T1 counts time and reaches a set value T1 (first preset time), the buzzer is controlled to send out a prompt message to remind a user to open the upper cover for natural cooling. That is, in the time t1-t2, the first heater does not heat, only the second heater heats, or the first heater and the second heater do not heat, and the upper cover is opened, thereby ensuring that no condensed water drips on the rice oil.

To sum up, the electric cooker of the embodiment of the invention, after the receiving module receives the cooking instruction input by the user, the control module controls the first heater of the electric cooker to heat with the first average power according to the cooking instruction, the judging module obtains the boiling detection parameter in the electric cooker in real time and judges whether the boiling detection parameter reaches the preset threshold value, namely whether the electric cooker reaches the boiling stage, when the electric cooker reaches the boiling stage, the control module controls the first heater to heat with the second average power and controls the timer to start timing, when the number of timing minutes is smaller than the first preset time and is an odd number, the control module controls the first heater to heat with the second average power, when the number of timing minutes is smaller than the first preset time and is an even number, the control module controls the first heater to heat with the third average power, when the timing time reaches the first preset time and is smaller than the second preset time, the control module controls the second heater to heat with fourth average power, and cooking is finished until the timing time reaches second preset time, or when the timing time reaches first preset time, the control prompt module sends prompt information to remind a user to open the upper cover for natural cooling.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A control method of an electric cooker is characterized in that the electric cooker comprises a first heater, and the method comprises the following steps:

receiving a cooking instruction input by a user, wherein the cooking instruction is used for controlling the electric cooker to cook porridge;

controlling the first heater to heat at a first average power according to the cooking instruction;

obtaining a boiling detection parameter in the electric cooker, and judging whether the boiling detection parameter reaches a preset threshold value;

and if the boiling detection parameter reaches the preset threshold value, controlling the first heater to alternately heat at a second average power and a third average power until the cooking is finished, wherein the second average power is greater than the third average power.

2. The method of claim 1, wherein the boiling detection parameter is a steam temperature inside the rice cooker.

3. The method of claim 1, wherein the boiling detection parameter is a bubble vibration detection value, a bubble electrode detection value or a bubble capacitance detection value in the rice cooker.

4. The method of claim 1, wherein the controlling the first heater to alternately heat at the second average power and the third average power comprises:

starting timing after the boiling detection parameter is judged to reach the preset threshold value;

judging whether the timing time is an odd number or an even number;

if the timing time is the odd number, controlling the first heater to heat at the second average power, and judging whether the timing time reaches a first preset time;

and if the timing time does not reach the first preset time and the timing time is the even number, controlling the first heater to heat at a third average power.

5. The method for controlling an electric cooker as claimed in claim 4, wherein the electric cooker further comprises a second heater disposed on an upper cover of the electric cooker, and when the timed time reaches the first preset time, the method further comprises:

and controlling the first heater to stop working, and controlling the second heater to heat at a fourth average power until the timing time reaches a second preset time.

6. The method as claimed in claim 5, wherein the first predetermined time is shorter than the second predetermined time.

7. The method of claim 4, wherein when the timed time reaches the first preset time, the method further comprises:

and sending prompt information to remind the user to open the upper cover of the electric cooker.

8. The method as claimed in claim 5, wherein the first average power ranges from 1050-.

9. The method as claimed in claim 6, wherein the first predetermined time is in the range of 30-60 minutes, and the second predetermined time is in the range of 60-120 minutes.

10. The method of claim 1, wherein the controlling the first heater to alternately heat at the second average power and the third average power further comprises:

judging whether the timing time is an odd number or an even number;

if the timing time is the odd number, controlling the first heater to heat at the third average power, and judging whether the timing time reaches a first preset time;

and if the timing time does not reach the first preset time and the timing time is the even number, controlling the first heater to heat with second average power.

11. An electric rice cooker, characterized in that, comprising:

a first heater;

the receiving module is used for receiving a cooking instruction input by a user, wherein the cooking instruction is used for controlling the electric cooker to cook porridge;

the judging module is used for acquiring boiling detection parameters in the electric cooker and judging whether the boiling detection parameters reach a preset threshold value;

a timer;

and the control module is respectively connected with the receiving module, the judging module and the timer and is used for controlling the first heater to heat at a first average power according to the cooking instruction and controlling the first heater to heat at a second average power and a third average power alternately when the boiling detection parameter reaches the preset threshold until the cooking is finished, wherein the second average power is greater than the third average power.

12. The rice cooker of claim 11, wherein said boiling detection parameter is a temperature of steam within said rice cooker.

13. The rice cooker of claim 11, wherein the boiling detection parameter is a bubble vibration detection value, a bubble electrode detection value or a bubble capacitance detection value in the rice cooker.

14. The rice cooker of claim 11, wherein when the control module controls the first heater to alternately perform heating at a second average power and a third average power, wherein,

the control module controls the timer to start timing after judging that the boiling detection parameter reaches the preset threshold value;

judging whether the timing time is an odd number or an even number;

when the timing time is the odd number, controlling the first heater to heat at the second average power, and judging whether the timing time reaches a first preset time;

and when the timing time does not reach the first preset time and the timing time is the even number, controlling the first heater to heat at the third average power.

15. The rice cooker of claim 14, further comprising:

the second heater is arranged on the upper cover of the electric cooker;

the control module is further used for controlling the first heater to stop working when the timing time reaches the first preset time, and controlling the second heater to heat at a fourth average power until the timing time reaches a second preset time.

16. The rice cooker of claim 15, wherein the first predetermined time is less than the second predetermined time.

17. The rice cooker of claim 14, further comprising:

the prompting module is connected with the control module;

the control module is also used for controlling the prompt module to send prompt information to remind the user to open the upper cover of the electric cooker when the timing time reaches the first preset time.

18. The rice cooker as claimed in claim 15, wherein the first average power ranges from 1050-.

19. The electric rice cooker as claimed in claim 16, wherein the first preset time is in a range of 30-60 minutes, and the second preset time is in a range of 60-120 minutes.