WO2016041352A1

WO2016041352A1 - Electric rice cooker and heating control method thereof

Info

Publication number: WO2016041352A1
Application number: PCT/CN2015/077761
Authority: WO
Inventors: 黄庶锋; 黄兵; 房振; 董凯
Original assignee: 佛山市顺德区美的电热电器制造有限公司; 美的集团股份有限公司
Priority date: 2014-09-17
Filing date: 2015-04-29
Publication date: 2016-03-24
Also published as: JP2017524503A; KR101892404B1; KR20170032321A; JP6377851B2

Abstract

A heating control method for an electric rice cooker, the electric rice cooker comprising a first heating coil (10) and a second heating coil (20); the first heating coil (10) is located under an inner pot (30) of the electric rice cooker; the bottom of the second heating coil (20) and the bottom of the first heating coil (10) form a preset angle, and both heating coils heat the electric rice cooker for N heating cycles, N being a positive integer, and each heating cycle comprising a first time period and a second time period; controlling the second heating coil (20) to heat in the first time period to enable heat of the inner pot (30) of the electric rice cooker to diffuse from side edges to the bottom; controlling the first heating coil (10) to heat in the second time period to enable heat of the inner pot (30) of the electric rice cooker to diffuse upward from the bottom. Also disclosed is an electric rice cooker. The heating control method for the electric rice cooker can prevent rice from floating up and ensure uniform heating of the inner pot (30) of the electric cooker to achieve good texture of cooked rice.

Description

Rice cooker and heating control method thereof

Technical field

The invention relates to the technical field of electrical appliances, in particular to a heating control method for a rice cooker, and a rice cooker.

Background technique

At present, some rice cookers have been heated by an IH (Induction Heater) coil disk, and the ordinary IH coil disk is integrally heated, and the uniformity of heating can be changed by adjusting the winding layout of the coil disk. However, the rice cooker controls the integrity of the IH coil disk, and the bottom of the inner pot immediately starts heating. The vertical upward heat flow formed in the inner pot of the rice cooker under high power will easily drift the rice in the inner pot upward, the heat flow and The bubbles do not penetrate the rice layer well, resulting in uneven heating and poor taste of the rice.

And during the cooking process, if the firepower at the bottom of the rice cooker is maintained at a relatively large firepower, it is easy for the bottom rice grains to be gelatinized and bonded together to form a rice block, and the bonded rice pieces will greatly hinder the heat to the upper middle layer. Rice is transferred, and the temperature field inside the inner pot varies greatly. In addition, after the rice water boils, the bubbles formed by the bottom of the inner pot cannot penetrate the rice cake layer to form a uniform boiling hole.

Summary of the invention

The object of the present invention is to solve the above-mentioned technical problems at least to some extent.

To this end, an object of the present invention is to provide a heating control method for a rice cooker. The heating control method of the rice cooker can keep the rice from drifting upward, so that the rice cooker inner pot is evenly heated, and the obtained rice taste is good.

Another object of the invention is to propose a rice cooker.

Another object of the present invention is to provide a heating control method for a rice cooker. The heating control method can reduce temperature deviation, and can form a uniform boiling hole after boiling, and the heating is uniform, and the rice taste is good.

Another object of the invention is to propose a rice cooker.

In order to achieve the above object, an embodiment of the present invention provides a heating control method for a rice cooker, the rice cooker including a first heating coil and a second heating coil, the first heating coil being located under the rice cooker inner pot, The second heating coil is at a predetermined angle with a bottom of the first heating coil, and the control method includes controlling the rice cooker to perform heating in N heating cycles, wherein N is a positive integer, and each of the heating The cycle includes a first time period and a second time period, wherein the second heating coil is controlled to be heated during the first time period to diffuse the temperature of the rice cooker inner pot from the side to the bottom; The second heating period controls the first heating coil to be heated to diffuse the temperature of the rice cooker inner pot upward from the bottom.

A heating control method for a rice cooker according to an embodiment of the present invention, by separately controlling a first heating coil and a second heating The heat coil is heated, and the second heating coil is controlled to be heated in each heating cycle, so that the rice in the inner pot can be prevented from floating upward, and then the first heating coil is controlled to be heated during the second heating period, so that the heating is more uniform, the rice is heated. Good taste.

Specifically, in some embodiments of the invention, each of the heating cycles satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of each of the heating cycles.

Wherein, in some embodiments of the present invention, the second heating coil is further controlled to be heated during the second period of each of the heating cycles, wherein the heating power of the first heating coil is The heating power of the second heating coil is different. Further, in some embodiments of the present invention, the second heating coil includes: a first portion, the first portion is located under the rice cooker inner pot; and a second portion, the second portion is located at the rice cooker The side of the inner pot.

In some embodiments of the invention, wherein the first time period in the ith heating cycle is greater than the first time period in the jth heating cycle, in the ith heating cycle The second time period is less than the second time period in the jth heating cycle, 0 < i < j < N.

In some embodiments of the invention, the length of time of at least a portion of the heating cycles of the N heating cycles is different.

In some embodiments of the invention, wherein the length of time of the ith heating cycle is less than the length of time of the jth heating cycle, 0 < i < j < N.

The length of time of the heating cycle can be varied in different heating stages, and the proportion of heating time of the first heating coil and the second heating coil in one heating cycle can also be changed, which is advantageous for the balanced distribution of heating heat and more uniform heating.

In order to achieve the above object, another embodiment of the present invention provides a rice cooker comprising: a first heating coil and a second heating coil, the first heating coil being located under the rice cooker inner pot, the first The second heating coil is at a predetermined angle with the bottom of the first heating coil; the controller controls the first heating coil and the second heating coil to heat with N heating cycles, wherein each The heating cycle includes a first time period and a second time period, and the second heating coil is controlled to be heated during the first time period to diffuse the temperature of the rice cooker inner pot from the side to the bottom. The second time period controls the first heating coil to be heated such that the temperature of the rice cooker inner pot is diffused upward from the bottom, wherein N is a positive integer.

According to the rice cooker of the embodiment of the present invention, the controller controls the first heating coil and the second heating coil to respectively perform heating, and first controls the heating of the second heating coil in each heating cycle, thereby preventing the rice in the inner pot from floating up, and further The second time period controls the heating of the first heating coil, so that the heating is more uniform and the rice taste is good.

Wherein, in some embodiments of the present invention, the second heating coil is further controlled to be heated during the second period of each of the heating cycles, wherein the heating power of the first heating coil is The heating power of the second heating coil is different.

Further, in some embodiments of the present invention, the second heating coil includes: a first portion, the first portion is located under the rice cooker inner pot; and a second portion, the second portion is located at the rice cooker The side of the inner pot.

In some embodiments of the invention, the first time period in the ith heating cycle is greater than the first time period in the jth heating cycle, the first in the ith heating cycle The second period of time is less than the second period of time in the jth heating period, 0 < i < j < N.

In some embodiments of the invention, the length of time of the ith heating cycle is less than the length of time of the jth heating cycle, 0 < i < j < N.

In order to achieve the above object, another embodiment of the present invention provides a heating control method for a rice cooker, the rice cooker including a first heating coil and a second heating coil, the first heating coil being located under the rice cooker inner pot The second heating coil is at a predetermined angle with the bottom of the first heating coil, and the control method includes a first heating stage and a second heating stage, wherein the first heating stage is heated by N1 Periodically controlling the rice cooker for heating, and controlling a time ratio of a heating time of the second heating coil to a heating time of the first heating coil to be greater than a preset ratio threshold in the N1 heating cycles, wherein N1 a positive integer; controlling the rice cooker for heating in the second heating stage in N2 heating cycles, and controlling the heating time of the second heating coil and the first heating in the N2 heating cycles The time ratio of the heating time of the coil is reduced, wherein N2 is a positive integer.

According to the heating control method of the rice cooker according to the embodiment of the present invention, heating is performed by separately controlling the first heating coil and the second heating coil, and in the first heating stage, the heating time of the second heating coil and the heating time of the first heating coil are controlled. The ratio is greater than the preset time ratio, that is, the second heating coil is mainly used, which can prevent the rice grains at the bottom of the rice cooker from forming a serious rice cake layer, and in the second heating stage, control the heating time of the second heating coil and the first heating coil. The ratio of the heating time is reduced, that is, the heating time of the second heating coil is reduced, and the heating ratio of the first heating coil is increased, so that the bubbles generated at the bottom of the inner pot can smoothly and uniformly penetrate the loose rice grains evenly, and the boiling is uniform. The rice made is soft and delicious, and the effect is good.

Wherein, in some embodiments of the present invention, the second heating coil is controlled to be heated during each of the heating cycles to diffuse the temperature of the rice cooker inner pot from the side to the bottom; A heating coil is heated to spread the temperature of the rice cooker inner pot upward from the bottom.

Specifically, each of the heating periods satisfies 4 seconds < T < 50 seconds, where T is the length of time of each of the heating periods.

Wherein, in some embodiments of the present invention, the first heating coil is controlled not to be heated during the heating of the second heating coil during the N1 heating cycles.

In the N2 heating cycles, when the second heating coil is controlled to be heated, the first heating coil is controlled not to be heated.

Specifically, in some embodiments of the present invention, the heating control method of the rice cooker further includes: detecting a temperature of a top portion of the rice cooker; and controlling the rice cooker to enter the temperature when a temperature of a top portion of the rice cooker reaches a temperature threshold The second heating stage.

In some embodiments of the present invention, in the first heating phase, a ratio of a heating time of the second heating coil to a heating time of the first heating coil is a fixed value, or In the first heating stage, the time ratio of the heating time of the second heating coil in the i-th heating cycle to the heating time of the first heating coil is less than the second in the j-th heating cycle The ratio of the heating time of the heating coil to the heating time of the first heating coil is 0 < i < j ≤ N1.

Wherein, in some embodiments of the present invention, the ratio of the heating time of the second heating coil to the heating time of the first heating coil in the kth heating cycle in the second heating phase Less than the preset ratio threshold, 0 < k ≤ N2.

In order to achieve the above object, another embodiment of the present invention provides a rice cooker comprising: a first heating coil and a second heating coil, the first heating coil being located under the rice cooker inner pot, the first a heating coil is at a predetermined angle with a bottom of the first heating coil; the controller controls the first heating coil and the second heating coil to heat in a first heating phase and a second heating phase In the first heating stage, the controller controls the rice cooker to heat with N1 heating cycles, and the controller controls the second heating coil during the N1 heating cycles a time ratio of the heating time to the heating time of the first heating coil is greater than a preset ratio threshold, wherein the controller controls the rice cooker to heat with N2 heating cycles during the second heating phase, and at the N2 During a heating cycle, the controller controls a ratio of a heating time of the second heating coil to a heating time of the first heating coil to decrease, wherein N1 and N2 It is a positive integer.

According to the rice cooker of the embodiment of the present invention, the controller controls the first heating coil and the second heating coil to respectively perform heating, and controls the ratio of the heating time of the second heating coil to the heating time of the first heating coil in the first heating stage. The example is larger than the preset time ratio, that is, the second heating coil is mainly used, which can prevent the rice grains at the bottom of the rice cooker from forming a serious rice cake layer, and in the second heating stage, control the heating time of the second heating coil and the first heating coil. The proportion of the heating time is reduced, that is, the heating time of the second heating coil is reduced, and the heating ratio of the first heating coil is increased, so that the bubbles generated at the bottom of the inner pot can smoothly and uniformly penetrate the loose rice grains, and the boiling heating is uniform. The rice made is soft and delicious, and the effect is good.

Wherein, in each of the heating cycles, the controller controls the second heating coil to perform heating to diffuse the temperature of the rice cooker inner pot from the side to the bottom, and control the first heating coil to heat So that the temperature of the inner pot of the rice cooker spreads upward from the bottom,

In addition, in some embodiments of the present invention, the rice cooker further includes: a temperature detector for detecting an internal temperature of the rice cooker, the temperature detector being located at a top of the rice cooker, when the temperature detector detects that the temperature reaches The controller controls the rice cooker to enter the second heating stage when the temperature is preset.

Wherein, in some embodiments of the present invention, the time ratio of the heating time of the second heating coil to the heating time of the first heating coil in the kth heating cycle is less than the preset ratio threshold, 0 <k ≤ N2.

A computer readable storage medium comprising computer instructions that, when executed, cause a heating control method of the rice cooker to be performed.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

1 is a partial structural view of a rice cooker according to an embodiment of the present invention;

2 is a flow chart of a heating control method of a rice cooker in a heating cycle according to an embodiment of the present invention. Figure

3 is a schematic view showing a heating control process of a rice cooker according to an embodiment of the present invention;

4 is a schematic view showing a heating control process of a rice cooker according to another embodiment of the present invention;

Figure 5 is a flow chart showing a method of heating control of a rice cooker according to an embodiment of the present invention;

Figure 6 is a schematic view showing a heating control process of a rice cooker according to an embodiment of the present invention;

7 is a flow chart showing a control process of each heating cycle in a heating control method of a rice cooker according to another embodiment of the present invention;

Figure 8 is a schematic illustration of a heating control process for a first heating stage of a rice cooker in accordance with another embodiment of the present invention.

Reference numeral

The first heating coil 10, the second heating coil 20, and the inner pot 30.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in different examples. This repetition is for the purpose of simplicity and clarity, and is not in the nature of the description of the various embodiments and/or arrangements discussed. Moreover, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials. Additionally, the structure of the first feature described below "on" the second feature may include embodiments in which the first and second features are formed in direct contact, and may include additional features formed between the first and second features. Embodiments such that the first and second features may not be in direct contact.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be, for example, mechanically or electrically connected, or two, unless otherwise specified and defined. The internal communication of the components may be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms may be understood according to specific circumstances.

These and other aspects of the embodiments of the present invention will be apparent from the description and appended claims. In the description and drawings, specific embodiments of the embodiments of the invention are disclosed This limit. On the contrary, this issue All changes, modifications, and equivalents are intended to be included within the scope of the appended claims.

A heating control method and a heating control device for a rice cooker according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

First, the rice cooker structure based on the heating method of the rice cooker of the embodiment of the present invention will be briefly described. FIG. 1 is an embodiment according to an embodiment of the present invention.

A schematic diagram of part of the structure of the rice cooker. As shown in FIG. 1 , the rice cooker according to the embodiment of the present invention includes a first coil, that is, a bottom inner coil and a second coil, that is, a bottom outer coil. The first heating coil is located under the rice cooker inner pot, and the second heating coil and the first heating coil are The bottom portion is at a predetermined angle, and the first heating coil and the second heating coil can be separately driven and controlled. It can be understood that both the first heating coil and the second heating coil can be arranged in a ring shape, for example, the first heating coil is distributed in an annular shape and the bottom of the inner pot, and the second heating coil is annularly distributed on the side periphery of the inner pot.

In addition, in an embodiment of the present invention, as shown in FIG. 1, the second heating coil is parallel to the chamfer of the inner pot, and is at a predetermined angle, for example, 45 degrees, with the first heating coil, in another embodiment of the present invention. The second heating coil may include a first portion and a second portion, wherein the first portion is located under the inner pot of the rice cooker and the second portion is located at the side of the inner pot of the rice cooker. Specifically, for example, the first portion is disposed at the bottom of the inner pot in parallel with the bottom of the inner pot, and the second portion is disposed at 90 degrees to the side of the inner pot and the bottom portion, so that heating can be made more uniform.

In an embodiment of the present invention, the heating control method of the rice cooker includes controlling the rice cooker for heating by N heating cycles, wherein N is a positive integer, and each heating cycle includes a first time period and a second time period, and FIG. 2 is based on A flow chart of a heating control method for each heating cycle of the rice cooker according to an embodiment of the present invention, as shown in FIG. 2, the control method in each heating cycle includes:

S1, controlling the second heating coil to be heated in the first period of time to diffuse the temperature of the rice cooker inner pot from the side to the bottom.

Specifically, in an embodiment of the present invention, controlling which of the first heating coil and the second heating coil first initiates heating has an effect on the cooking effect of the rice. Since the heat at the bottom of the inner pot is heated by the heating of the first heating coil, the rice is vertically upward. If the first heating coil is started for heating, the vertical upward heat flow formed at high power will be easier to complete the whole pot. The rice floats upwards, and the heat flow and bubbles do not penetrate the rice grain well. 3 is a schematic view showing a heating control process of a rice cooker according to another embodiment of the present invention. As shown in FIG. 3, in each heating cycle T, for example, T1 to TN, the second heating coil is first controlled, that is, on the side of the inner pot. The heating coil is heated. In the first period of time, for example, stage 1 of each heating cycle in FIG. 3, the second heating coil is controlled to be heated, and the heat flow formed in the inner pot acts on the rice closer to the lateral direction and can be arranged in a ring shape, penetrated into At the same time as the inside of the rice, it is better to fix the whole pot of rice without floating upwards.

S2, controlling the first heating coil to be heated in the second time period, so that the temperature of the rice cooker inner pot is up from the bottom diffusion.

Specifically, after the second heating coil is started to be heated in the first time period, the temperature of the rice cooker inner pot is diffused from the side to the bottom, the rice grain layer is first solidified, and then the first heating coil is controlled to be heated in the second time period. In stage 2 of each heating cycle as shown in FIG. 3, the first heating coil, that is, the bottom coil is controlled to be heated, so that the inner pot temperature is diffused upward from the bottom, and at this time, the rice does not drift upward as a whole, so that it can be fully The heat flow and the bubbles formed by the first heating coil are heated to make the heating more uniform.

In one embodiment of the invention, the first heating coil is controlled to be unheated while controlling the heating of the second heating coil during N heating cycles. That is to say, in each heating cycle, the second heating coil is first controlled for heating, and then the first heating coil is activated for heating. When the second heating coil is controlled to be heated, the first heating coil is not heated, and the second heating is performed. After the heating of the coil is completed, the first heating coil is controlled to be heated, that is, only the second heating coil is controlled to be heated in the first period of each heating cycle, and only the first heating coil is controlled in the second period of each cycle. heating. Alternatively, during the heating cycle of the N heating cycles, the second heating coil is simultaneously controlled to perform heating, and the heating power of the first heating coil is different from the heating power of the second heating coil. That is to say, the second heating coil is first activated for heating, and after a certain time, the first heating coil is controlled to be heated, and at this time, the first heating coil and the second heating coil can be simultaneously heated, that is, in each heating cycle. Only one second heating coil is controlled for heating for a period of time, and the first heating coil and the second heating coil are controlled to be simultaneously heated during a second period of each heating cycle. At this time, the heating power of the first heating coil is different from the heating power of the second heating coil. For example, the heating power of the second heating coil may be lowered such that the heating power of the first heating coil is greater than the heating power of the second heating coil. First, the second heating coil is first heated to make the inner pot temperature first penetrate the rice layer from the side, and the rice is not floated upward, and then the first heating coil or the two coils are simultaneously heated to ensure that the rice does not The overall drift upwards.

The heating time of the first heating coil and the second heating coil in one heating cycle, that is, the first time period and the second time period, may vary. In one embodiment of the invention, the first in the ith heating cycle A period of time is greater than a first period of time in the jth heating period, a second period of time in the ith heating period is less than a second period of time in the jth heating period, 0 < i < j ≤ N . As shown in FIG. 3, during the whole cooking process, during the heating cycle of different heating stages, the heating time of the first heating coil in one heating cycle (ie, the first time period) is longer and longer, and the second The heating time of the heating coil in one heating cycle (ie, the second time period) is continuously reduced, and the heating time ratio of the first heating coil and the second heating coil is adjusted at different stages of heating, so that a better heat balance can be further achieved.

Specifically, as shown in FIG. 4, wherein the square bar indicates that one cycle, for example, the heating cycle satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of one heating cycle, for example, each cycle is 16 seconds, each The squares represent 2 seconds, the diagonal box indicates the heating time of the first heating coil, and the dot box indicates the heating time of the second heating coil. P1 is the temperature curve at the bottom of the detected rice cooker, and curve P2 is the temperature curve at the top of the detected rice cooker. For example, for the length of time of the heating cycle, the first heating time and the second heating time may vary during each heating cycle for the N heating cycles of the entire cooking process. For example, in the temperature rising phase in FIG. 4, in the i-th heating cycle, the heating time of the second heating coil, that is, the first time period is 7/8 of the heating period, and the heating time of the first heating coil, that is, the second time period is 1/8 of the heating cycle, that is, first heating the second heating coil for 14 seconds, and then starting the first heating coil for 2 seconds, in the jth heating cycle, the first time period is 5/8 of the heating cycle, The two time periods are 3/8 of the heating cycle, that is, in the jth heating cycle, the second heating coil is first heated for 10 seconds, and then the first heating coil is activated for 6 seconds.

As shown in Fig. 4, the length of time during which the heating cycle for controlling the rice cooker is heated is fixed. In addition, the length of the heating cycle can also vary, facilitating the distribution of heat. In an embodiment of the present invention, as shown in FIG. 3, the rice cooker is controlled to be heated by N heating cycles, wherein the length of time of at least part of the heating cycles in the N heating cycles is different, that is, the heating cycles may be different in different heating stages. . For example, in one embodiment of the invention, the length of time of the ith heating cycle is less than the length of time of the jth heating cycle, 0 < i < j < N. Specifically, in the embodiment of the present invention, the length of the heating period may be 4-50 seconds, as shown in FIG. 3, the i-th heating period, for example, the heating period T1 is 16 seconds, and the j-th heating period, for example, heating The period TN is 19 seconds. That is, during the whole cooking process, the length of the heating cycle is longer and longer in a period of time, and the heating time of the first heating coil and the second heating coil is relatively changed, which is favorable for the distribution of heating heat.

In summary, according to the heating control method of the rice cooker according to the embodiment of the present invention, by heating the first heating coil and the second heating coil separately, and controlling the heating of the second heating coil in each heating cycle, the inner heating can be avoided. The rice in the pot floats up, and then the first heating coil is controlled to be heated, which makes the heating more uniform and the rice tastes good.

In addition, the length of the heating cycle can be varied in different heating stages, and the ratio of the heating time of the first heating coil and the second heating coil in one heating cycle can also be changed, which is advantageous for the balanced distribution of heating heat and more uniform heating.

A rice cooker according to another embodiment of the present invention will now be described with reference to the accompanying drawings.

1 is a schematic view of a rice cooker in accordance with an embodiment of the present invention. As shown in FIG. 1, the rice cooker according to the embodiment of the present invention includes a first heating coil 10, a second heating coil 20, and a controller (not shown). The first heating coil 10 is located under the rice cooker inner pot 30, and the second heating The coil 20 is at a predetermined angle with the bottom of the first heating coil 10. It can be understood that both the first heating coil 10 and the second heating coil 20 can be arranged in a ring shape, for example, the first heating coil 10 is distributed in a ring shape and the bottom of the inner pot 30. The second heating coil 20 is annularly distributed on the side periphery of the inner pot 30. The controller controls the first heating coil 10 and the second heating coil 20 to perform heating in N heating cycles, each heating cycle includes a first time period and a second time period, and the second heating coil 20 is controlled to be heated in the first time period. To make rice The temperature of the inner pot 30 is diffused from the side to the bottom, and the first heating coil 10 is controlled to be heated during the second period so that the temperature of the rice cooker 30 is diffused upward from the bottom, wherein N is a positive integer.

In addition, in one embodiment of the present invention, as shown in FIG. 1, the second heating coil 20 is parallel to the chamfer of the inner pot 30, and is at a predetermined angle, for example 45 degrees, with the first heating coil 10, in another aspect of the present invention. In one embodiment, the second heating coil 20 can include a first portion and a second portion, wherein the first portion is located below the rice cooker inner pot 30 and the second portion is located on the side of the rice cooker inner pot 30. Specifically, for example, the first portion is disposed at the bottom of the inner pot 30 in parallel with the bottom of the inner pot 30, and the second portion is disposed at the side of the inner pot 30 at 90 degrees to the bottom portion, so that heating can be made more uniform.

Specifically, in an embodiment of the present invention, the controller controls which of the first heating coil 10 and the second heating coil 20 to initiate heating first, which has an effect on the cooking effect of the rice. The heat generated by the heating of the inner heating tube 10, that is, the heat generated by the heating of the first heating coil 10, acts on the inner pot 30 to be vertically upward. If the first heating coil 10 is first activated for heating, the vertical upward heat flow formed at high power. It will be easier to float the whole pot of rice upwards, and the heat flow and bubbles will not penetrate the rice grain well. 3 is a schematic view showing a heating control process of a rice cooker according to another embodiment of the present invention. As shown in FIG. 3, in each heating cycle T, for example, T1 to TN, the controller first controls the second heating coil 20 to be located in the inner pot. The heating coil on the 30 side is heated. In the first period of time, for example, stage 1 of each heating cycle in FIG. 3, the second heating coil 20 is controlled to be heated, and the heat flow formed in the inner pot 30 acts on the rice closer to the lateral direction and can be arranged in a ring shape, which is worn. While penetrating into the interior of the rice, it is better to fix the whole pot of rice without floating upwards.

After the second heating coil 20 is started to be heated in the first period of time, the temperature of the rice cooker inner pot is diffused from the side to the bottom, and the rice grain layer is first solidified, and then the controller controls the first heating coil 10 to perform the second time period. heating. In stage 2 of each heating cycle as shown in FIG. 3, the controller controls the first heating coil, that is, the bottom coil to be heated, so that the inner pot temperature is diffused upward from the bottom, and the rice is also prevented from drifting upward as a whole. The heat flow and the bubbles formed by the heating of the first heating coil 10 can be fully utilized, and the heating is more uniform.

In one embodiment of the present invention, the controller controls the first heating coil 10 not to be heated while controlling the second heating coil 20 for heating during N heating cycles. That is, in each heating cycle, the controller first controls the second heating coil 20 to perform heating, and then activates the first heating coil 10 to perform heating. When the second heating coil 20 is controlled to perform heating, the first heating coil 10 does not perform. Heating, after the heating of the second heating coil 20 is completed, the controller controls the first heating coil 10 to perform heating, that is, only controls the second heating coil 20 for heating in the first period of each heating cycle, in each cycle The second period of time only controls the first heating coil 10 for heating. Alternatively, during the N heating cycles, the controller simultaneously controls the second heating coil 20 to perform heating while controlling the heating of the first heating coil 10, and the heating power of the first heating coil 10 is different from the heating power of the second heating coil 20. . That is, the second heating coil 20 is first activated for heating, and after a certain time, the controller controls the first heating coil 10 to perform heating, at which time the first heating coil 10 and the second heating coil 20 can be simultaneously heated, that is, at each One The first period of the heating cycle controls only the second heating coil 20 for heating, and the first heating coil 10 and the second heating coil 20 are controlled to be simultaneously heated during the second period of each heating cycle. At this time, the heating power of the first heating coil 10 is different from the heating power of the second heating coil 20, for example, the heating power of the second heating coil 20 can be lowered, so that the heating power of the first heating coil 10 is greater than the heating of the second heating coil 20. power. First, the second heating coil 20 is started to be heated, so that the temperature of the inner pot 30 first penetrates the rice layer from the side, and the rice is not floated upward, and then the first heating coil 10 or the two coils are simultaneously heated to ensure that the temperature is ensured. Rice does not drift upwards overall.

In addition, in the embodiment of the present invention, the heating time of the first heating coil 10 and the second heating coil 20 in one heating cycle, that is, the first time period and the second time period may be varied, in an implementation of the present invention. In an example, the first time period in the ith heating cycle is greater than the first time period in the jth heating cycle, and the second time period in the ith heating cycle is less than in the jth heating cycle In the second time period, 0 < i < j ≤ N. As shown in FIG. 3, during the whole cooking process, during the heating cycle of different heating stages, the heating time of the first heating coil 10 in one heating cycle (ie, the first time period) is longer and longer, and the first The heating time of the two heating coils 20 in one heating cycle (ie, the second time period) is continuously reduced, and the ratio of heating time of the first heating coil 10 and the second heating coil 20 is adjusted at different stages of heating, which can further achieve better. Heat balance.

Specifically, as shown in FIG. 4, wherein the square bar indicates that one cycle, for example, the heating cycle satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of one heating cycle, for example, each cycle is 16 seconds, each The squares represent 2 seconds, the diagonal box indicates the heating time of the first heating coil 10, the dot box indicates the heating time of the second heating coil 20, the curve P1 is the temperature curve of the bottom of the detected rice cooker, and the curve P2 is the detected rice cooker. The temperature curve inside the top. For example, for the length of time of the heating cycle, the first heating time and the second heating time may vary during each heating cycle for the N heating cycles of the entire cooking process. For example, in the temperature rising phase, that is, phase 1 in FIG. 4, in the i-th heating cycle, the heating time of the second heating coil 20, that is, the first time period is 7/8 of the heating cycle, and the heating of the first heating coil 10 is performed. The second time period is 1/8 of the heating period, that is, the second heating coil 20 is started to be heated for 14 seconds, and then the first heating coil 10 is started to be heated for 2 seconds. During the jth heating period, the first time period For the heating cycle of 5/8, the second time period is 3/8 of the heating cycle, that is, in the jth heating cycle, the second heating coil 20 is started to be heated for 10 seconds, and then the first heating coil 10 is activated. Heat for 6 seconds.

As shown in FIG. 4, the length of time during which the controller controls the heating cycle in which the rice cooker is heated is fixed. In addition, the length of the heating cycle can also vary, facilitating the distribution of heat. In an embodiment of the present invention, as shown in FIG. 3, the controller controls the rice cooker to perform heating in N heating cycles, wherein at least part of the heating cycles in the N heating cycles have different lengths of time, that is, heating cycles in different heating stages. Can be different. For example, in one embodiment of the invention, the length of time of the ith heating cycle is less than the length of time of the jth heating cycle, 0 < i < j < N. Specifically, in the embodiment of the present invention, for example, the length of the heating period is 16 seconds, as shown in FIG. 3, the i-th heating period, for example, the heating period T1 is 16 seconds, and the j-th heating period, for example, the heating period TN It is 19 seconds. which is During the whole cooking process, the length of the heating cycle is increasing over a period of time, and the heating time of the first heating coil 10 and the second heating coil 20 is relatively changed, which is advantageous for the distribution of heat.

According to the rice cooker of the embodiment of the invention, the controller controls the first heating coil and the second heating coil to respectively heat, and first controls the heating of the second heating coil in each heating cycle, thereby preventing the rice in the inner pot from floating up, and then Controlling the heating of the first heating coil can make the heating more uniform and the rice taste is good.

Based on the rice cooker structure shown in Fig. 1, the present invention also provides a heating control method for a rice cooker.

The heating control method of the rice cooker according to the embodiment of the present invention includes a first heating stage and a second heating stage such as a temperature rising stage and a temperature maintaining stage, and FIG. 5 is a flowchart of a method of controlling the rice cooker according to an embodiment of the present invention, such as As shown in FIG. 5, the method for controlling a rice cooker according to an embodiment of the present invention includes the following steps:

S50, controlling the rice cooker for heating in the first heating stage by N1 heating cycles, and controlling the time ratio of the heating time of the second heating coil to the heating time of the first heating coil to be greater than a preset ratio threshold in N1 heating cycles .

Where N1 is a positive integer. In an embodiment of the invention, the heating time ratio of the first heating coil and the second heating coil affects the heating and boiling effects of the whole pot of rice. For example, it can be regarded as a first heating phase, that is, a temperature rising phase, from the start of cooking to the boiling of rice water, and the boiling of rice water to the end of cooking can be regarded as a second heating phase such as a temperature maintenance phase.

6 is a schematic view showing a heating control process of a rice cooker according to an embodiment of the present invention, wherein a square bar indicates that one cycle, for example, a heating cycle satisfies 4 seconds < T < 50 seconds, wherein T is a heating cycle. The length of time, for example, one cycle is 16 seconds, each square represents 2 seconds, the diagonal box indicates the heating time of the first heating coil, and the dot box indicates the heating time of the second heating coil, as shown in FIG. In the heating phase, for example, the heating phase, in the N1 heating cycle, in order to prevent the gelatinization of the bottom rice grains from agglomerating, the heating of the first heating coil is reduced, and the heating time of the second heating coil and the heating time of the first heating coil are controlled. The ratio is greater than the preset ratio threshold, mainly to control the heating of the second heating coil. Wherein, in the heating cycle of the N1 heating cycles, when the second heating coil is controlled to be heated, the first heating coil may be controlled not to be heated. For example, in the heating stage, the ratio of the heating time of the second heating coil to the heating time of the first heating coil is greater than 1 in one heating cycle, that is, the heating time of the second heating coil is greater than the heating time of the first heating coil, The heating of the heating coil is mainly, and the rice grains at the bottom of the process are not damaged by the high temperature of the bottom surface of the inner pot, and the rice grains do not form a serious rice cake layer.

S51, controlling the rice cooker for heating in the second heating period by N2 heating cycles, and controlling the time ratio of the heating time of the second heating coil to the heating time of the first heating coil is decreased in N2 heating cycles.

Where N2 is a positive integer. Specifically, when the rice water is about to boil, that is, enters the temperature maintenance phase, that is, the second heating phase in FIG. 6, controlling the heating time of the second heating coil and the first heating coil in each heating cycle of the N2 heating cycles The ratio of the heating time is reduced, that is, the heating time of the second heating coil is reduced, and the heating ratio of the first heating coil is increased, mainly by heating the first heating coil, so that the bubbles generated at the bottom of the inner pot are smoothly upward. Evenly penetrate the loose rice grains to achieve a uniform boiling effect, and the cooked rice is soft and delicious. Further, in the N2 heating cycles, when the second heating coil is controlled to be heated, the first heating coil can be controlled not to be heated.

Further, for each of the first heating stage and the second heating stage, FIG. 7 is a flow chart of a heating control method of the rice cooker in one heating cycle according to an embodiment of the present invention. As shown in FIG. 7, in each heating cycle, the above method includes the following steps:

S70: Control the second heating coil to perform heating so that the temperature of the rice cooker inner pot spreads from the side to the bottom.

Specifically, in the embodiment of the present invention, the first heating coil and the second heating coil may be respectively heated, wherein in each heating cycle, the coil of the second heating coil, that is, the bottom side is controlled to be preset power. Heating, the preset power can be set according to the specific product, and the temperature of the inner pot of the rice cooker can be spread from the side to the bottom.

S71, controlling the first heating coil to perform heating so that the temperature of the rice cooker inner pot is diffused upward from the bottom.

Specifically, when controlling the heating of the second heating coil, the heating of the first heating coil may also be separately controlled, and the heating power of the first heating coil and the second heating coil may be the same, for example, heating at a preset power, and controlling the first heating coil to perform Heating can cause the temperature of the inner pot of the rice cooker to spread upward from the bottom. Heating control of the first heating coil and the second heating coil respectively can realize the adjustment of the heating power in different heating regions.

Specifically, for the timing of entering the second heating stage from the first heating stage, in one embodiment of the present invention, the heating control method of the rice cooker further comprises: detecting the temperature of the top of the rice cooker, when the temperature of the top of the rice cooker reaches the temperature At the threshold, the rice cooker is controlled to enter the second heating stage control, that is, the rice water is about to boil into the temperature maintenance stage. That is to say, the criterion for the boiling of rice water is to determine the temperature at the top of the rice cooker to reach a preset temperature, for example, up to 90 °C. For example, as shown in FIG. 6, wherein the curve P1 is the temperature curve of the bottom of the detected rice cooker, and the curve P2 is the temperature curve of the top of the detected rice cooker. When the temperature of the top of the rice cooker reaches 90 ° C, the rice cooker enters the first During the heating phase, the ratio of heating time of the second heating coil to the first heating coil is reduced during one heating cycle.

Further, in the embodiment of the present invention, the time ratio of the heating time of the second heating coil to the heating time of the first heating coil may vary. For example, in the first heating phase, the time ratio of the heating time of the second heating coil to the heating time of the first heating coil may be a fixed value such as 1, or, in the first heating phase, in the ith heating cycle. The time ratio is less than the proportion of time in the jth heating cycle, 0 < i < j ≤ N1. For example, as shown in FIG. 8, a schematic view of a first heating stage of a rice cooker according to an embodiment of the present invention, for example, in a first heating stage, for example The ratio of the heating time of the second heating coil to the first heating coil is continuously increased during a period of the heating phase, for example, in the i-th heating cycle, the heating time ratio of the second heating coil to the first heating coil is 5 to 1, For example, the heating cycle is 16 seconds, in the i-th heating cycle, the heating time of the second heating coil is 10 seconds, the heating time of the first heating coil is 2 seconds, and in the j-th heating cycle, the second heating coil and the second heating coil The heating time ratio of a heating coil is 7 to 1, for example, the heating time of the second heating coil is 14 seconds, and the heating time of the first heating coil is 2 seconds.

In another embodiment of the present invention, when the temperature is maintained during the second heating phase, that is, during the boiling phase, the heating time ratio of the second heating coil to the first heating coil may be greater than a preset ratio threshold or equal to a preset ratio. The threshold value, or less than the preset ratio threshold value, for example, the time ratio of the heating time of the second heating coil to the heating time of the first heating coil in the kth heating cycle is less than a preset ratio threshold, 0<k≤N2. For example, as shown in FIG. 6, in the second heating stage, that is, the temperature maintaining stage, the ratio of the heating time of the second heating coil to the heating time of the first heating coil is, for example, 3 to 4, or 1 to 1, that is equal.

In addition, in an embodiment of the present invention, when the second heating coil is controlled to be heated at a preset power during one heating cycle, the first heating coil is controlled to stop heating or the first heating coil is controlled after a preset time. The preset power is used for heating. That is to say, in each heating cycle, the second heating coil is first controlled for heating, and when the second heating coil is controlled to be heated, the first heating coil is not heated. Alternatively, the second heating coil is first controlled to be heated, and then the first heating coil and the second heating coil are simultaneously heated, and in the first heating stage, the heating time of the second heating coil is simultaneously with the first heating coil and the second heating coil. The proportion of heating time for heating is greater than a preset ratio threshold.

In summary, the heating control method of the rice cooker according to the embodiment of the present invention controls heating of the first heating coil and the second heating coil, respectively, and controls the heating time of the second heating coil and the first in the first heating stage. The ratio of the heating time of the heating coil is greater than the preset time ratio, that is, the second heating coil is mainly used, which can prevent the rice grains at the bottom of the rice cooker from forming a serious rice cake layer, and then control the heating time of the second heating coil in the second heating stage. The ratio of the heating time to the first heating coil is reduced, that is, the heating time of the second heating coil is reduced, and the heating ratio of the first heating coil is increased, and the heating of the first heating coil is mainly performed, so that the bottom of the inner pot can be generated. The bubbles smoothly and evenly penetrate the loose rice grains and boil evenly. The rice made is soft and delicious, and the effect is good.

As shown in FIG. 1, the rice cooker of the embodiment of the present invention includes a first heating coil 10, a second heating coil 20, and a controller (not shown). The first heating coil 10 is located below the rice cooker inner pot 30, and the second heating coil 20 is at a predetermined angle with the bottom of the first heating coil 10. The first heating coil 10 and the second heating coil 20 can be separately driven and controlled. It can be understood that both the first heating coil 10 and the second heating coil 20 can be arranged in a ring shape, for example, the first heating coil 10 is distributed in an annular shape and the bottom of the inner pot 30, and the second heating coil 20 is annularly distributed on the side periphery of the inner pot 30. .

Wherein, in an embodiment of the present invention, as shown in FIG. 1, the second heating coil 20 is parallel to the chamfer of the inner pot 30, and is at a predetermined angle, for example 45 degrees, with the first heating coil 10, in another aspect of the present invention. In one embodiment, the second heating coil 20 can include a first portion and a second portion, wherein the first portion is located below the rice cooker inner pot 30 and the second portion is located on the side of the rice cooker inner pot 30. Specifically, for example, the first portion is disposed at the bottom of the inner pot 30 in parallel with the bottom of the inner pot 30, and the second portion is disposed at the side of the inner pot 30 at 90 degrees to the bottom portion, so that heating can be made more uniform.

Wherein, the heating stage of the rice cooker comprises a first heating stage and a second heating stage, wherein in the first heating stage, the controller controls the rice cooker to heat by N1 heating cycles, and in the second heating stage, the controller takes N2 heating cycles The rice cooker is controlled to be heated, wherein N1 and N2 are both positive integers. The heating time ratio of the first heating coil and the second heating coil affects the heating and boiling effect of the whole rice, and the controller controls the heating time of the second heating coil 20 and the heating time of the first heating coil 10 during N1 heating cycles. The time ratio is greater than the preset ratio threshold, and the controller controls the time ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 to decrease in N2 heating cycles.

Specifically, for example, it can be regarded as a first heating stage, that is, a temperature rising stage, from the start of cooking to the boiling of rice water, and the boiling of rice water to the end of cooking can be regarded as a second heating stage such as a temperature maintenance stage. FIG. 6 is a flow chart showing a heating control process of the rice cooker according to an embodiment of the present invention, in the first heating stage as in FIG. 6, for example, a temperature rising stage, in the N1 heating cycle, in order to prevent the bottom rice grain paste. The aging is performed to reduce the heating of the first heating coil, and the controller controls the time ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 to be greater than a preset ratio threshold, mainly to control the second heating coil 20 The heating is mainly performed, wherein during the heating cycle of the N1 heating cycles, the controller can control the first heating coil 10 not to be heated when controlling the heating of the second heating coil 20. For example, in the heating period, the ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 is greater than 1 in one heating cycle, that is, the heating of the second heating coil 20 is dominant, and the process is at the bottom. The rice grains are not damaged by the high temperature of the bottom surface of the inner pot 30, and the rice grains do not form a serious rice cake layer.

When the rice water is about to boil, that is, enters the temperature maintenance phase, that is, the second heating phase in FIG. 6, the controller controls the heating time of the second heating coil 20 and the first heating in each heating cycle of the N2 heating cycles. The time ratio of the heating time of the coil 10 is reduced, that is, the heating time for controlling the second heating coil 20 is reduced, and the heating ratio of the first heating coil 10 is increased, mainly by heating the first heating coil 10, so that the inner pot 30 is made. The bubbles generated at the bottom smoothly and evenly penetrate the loose rice grains, and finally reach a boiling even effect, and the cooked rice is soft and delicious. In addition, during the N2 heating cycles, when the controller controls the second heating coil 20 to perform heating, the first heating coil 10 can be controlled not to be heated.

During each heating cycle of the first heating phase and the second heating phase, the controller may respectively heat the first heating coil 10 and the second heating coil 20 to achieve adjustment of the heating power of different heating regions. The controller controls the second heating coil 20 to be heated at a preset power to diffuse the temperature of the rice cooker inner pot 30 from the side to the bottom. The first heating coil 10 is heated at a preset power so that the temperature of the rice cooker inner pot 30 is diffused upward from the bottom.

Further, the rice cooker further includes a temperature detector for detecting the internal temperature of the rice cooker, the temperature detector is located at the top of the rice cooker, and when the temperature detector detects that the temperature reaches the preset temperature, the controller controls the rice cooker to enter the second heating stage control, that is, The rice water is about to boil into the temperature maintenance phase. That is to say, the criterion for the boiling of rice water is to determine the temperature at the top of the rice cooker to reach a preset temperature, for example, up to 90 °C. For example, as shown in FIG. 6, wherein the square bar indicates that one cycle, for example, the heating cycle satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of one heating cycle, for example, one cycle is 16 seconds, each square. Indicates 2 seconds, the shaded box indicates the heating time of the first heating coil 10, the dot box indicates the heating time of the second heating coil 20, the curve P1 is the temperature curve of the bottom of the detected rice cooker, and the curve P2 is the top of the detected rice cooker The temperature curve, when the temperature of the top of the rice cooker detected by the temperature detector reaches 90 ° C, the rice cooker enters the control of the second heating stage, and the heating time of the second heating coil 20 and the first heating coil 10 is controlled in one heating cycle. The ratio is reduced.

Further, in the embodiment of the present invention, the time ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 may vary. For example, in the first heating phase, the ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 is a constant value, or, in the first heating phase, the time in the ith heating cycle. The ratio is less than the proportion of time in the jth heating cycle, 0 < i < j ≤ N1. For example, as shown in FIG. 8, a schematic diagram of a first heating stage of a rice cooker according to an embodiment of the present invention, a heating time ratio of the second heating coil 20 to the first heating coil 10 during a first heating phase, such as a temperature rising phase Increasingly, for example, in the i-th heating cycle, the heating time ratio of the second heating coil 20 to the first heating coil 10 is 5 to 1, for example, the heating period is 16 seconds, and during the ith heating period, the second heating The heating time of the coil 20 is 10 seconds, the heating time of the first heating coil 10 is 2 seconds, and the heating time ratio of the second heating coil 20 and the first heating coil 10 is 7 to 1, in the jth heating cycle, for example The heating time of the second heating coil 20 is 14 seconds, and the heating time of the first heating coil 10 is 2 seconds.

In another embodiment of the present invention, the temperature ratio of the second heating coil 20 to the first heating coil 10 may be greater than a preset ratio threshold or equal to the pre-heating period during the second heating phase, that is, during the boiling phase. The proportional threshold is set, or is less than the preset ratio threshold. For example, the time ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 in the kth heating period is less than a preset ratio threshold, 0<k ≤ N2. For example, as shown in FIG. 6, in the second heating stage, that is, the temperature maintaining stage, the ratio of the heating time of the second heating coil 20 to the heating time of the first heating coil 10 is 3 to 4, or 1 to 1 is equal.

In addition, in an embodiment of the present invention, the controller controls the first heating coil 10 to stop heating or control the preset time after the second heating coil 20 is heated at the first power during one heating cycle. A heating coil 10 is heated at a preset power. That is to say, in each heating cycle, the controller first controls the second heating coil 20 to perform heating, and when the second heating coil 20 is controlled to perform heating, the first heating coil 10 is not added. heat. Alternatively, the second heating coil 20 is first controlled for heating, and then the first heating coil 10 and the second heating coil 20 are controlled to be simultaneously heated. At this time, the second heating coil 20 is still heated mainly, and in the first heating stage, The ratio of the heating time of the heating coil 20 to the heating time of the simultaneous heating of the first heating coil 10 and the second heating coil 20 is greater than a preset ratio threshold.

According to the rice cooker of the embodiment of the invention, the controller controls the first heating coil and the second heating coil to respectively perform heating, and in the first heating stage, the ratio of the heating time of the second heating coil to the heating time of the first heating coil is greater than The preset time ratio, that is, the second heating coil is mainly used, can prevent the rice grains at the bottom of the rice cooker from forming a serious rice cake layer, and in the second heating stage, control the heating time of the second heating coil and the heating time of the first heating coil. The ratio of the second heating coil is reduced, that is, the heating time of the second heating coil is increased, and the heating ratio of the first heating coil is increased, and the heating of the first heating coil is mainly performed, so that the bubbles generated at the bottom of the inner pot can be smoothly and uniformly penetrated upward. Loose rice grains, boiled and heated evenly, the rice made is soft and delicious, and the effect is good.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a particular logical function or process. And the scope of the preferred embodiments of the invention includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in an opposite order depending on the functions involved, in the order shown or discussed. It will be understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be used in the art. Known by any one of the following techniques or a combination thereof: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGA), Field Programmable Gate Array (FPGA), etc.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.

Claims

A heating control method for a rice cooker, characterized in that the rice cooker comprises a first heating coil and a second heating coil, the first heating coil is located under the rice cooker inner pot, the second heating coil is The bottom of the first heating coil is at a predetermined angle, and the control method includes:

The rice cooker is controlled to be heated by N heating cycles, wherein N is a positive integer, and each of the heating cycles includes a first time period and a second time period,

Controlling the second heating coil to perform heating during the first period of time to diffuse the temperature of the rice cooker inner pot from the side to the bottom;

The first heating coil is controlled to be heated during the second period of time such that the temperature of the rice cooker inner pot is diffused upward from the bottom.
A heating control method for a rice cooker according to claim 1, wherein each of said heating cycles satisfies 4 seconds < T < 50 seconds, wherein T is a length of time of each of said heating cycles.
A heating control method for a rice cooker according to claim 1 or 2, wherein said second heating coil is further controlled to be heated during said second period of each of said heating cycles, wherein said The heating power of a heating coil is different from the heating power of the second heating coil.
A heating control method for a rice cooker according to any one of claims 1 to 3, wherein the second heating coil comprises:

a first portion, the first portion being located under the rice cooker inner pot;

In the second part, the second part is located on the side of the inner pot of the rice cooker.
The rice cooker heating control method according to any one of claims 1 to 4, wherein the first time period in the i-th heating cycle is greater than the first time in the j-th heating cycle For a period of time, the second period of time in the i-th heating period is less than the second period of time in the j-th heating period, 0 < i < j < N.
The method of controlling the heating of a rice cooker according to any one of claims 1 to 5, characterized in that the length of time of at least part of the heating cycles in the N heating cycles is different.
The rice cooker heating control method according to claim 6, wherein the length of the i-th heating cycle is less than the length of the j-th heating cycle, and 0 < i < j ≤ N.
A rice cooker characterized by comprising:

a first heating coil and a second heating coil, the first heating coil is located under the rice cooker inner pot, and the second heating coil is at a predetermined angle with a bottom of the first heating coil;

a controller that controls the first heating coil and the second heating coil to enter with N heating cycles Row heating, wherein each of the heating cycles includes a first time period and a second time period during which the second heating coil is controlled to be heated to bring the temperature of the rice cooker from the side Spreading toward the bottom side, the first heating coil is controlled to be heated during the second period of time so that the temperature of the rice cooker inner pot is diffused upward from the bottom, wherein N is a positive integer.
A rice cooker according to claim 8, wherein each of said heating cycles satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of each of said heating cycles.
A rice cooker according to claim 8 or 9, wherein said second heating coil is further heated during said second period of each of said heating cycles, wherein said first heating coil The heating power is different from the heating power of the second heating coil.
A rice cooker according to any one of claims 8 to 10, wherein the second heating coil comprises:

a first portion, the first portion being located under the rice cooker inner pot;

In the second part, the second part is located on the side of the inner pot of the rice cooker.
The rice cooker according to any one of claims 8 to 11, wherein the first time period in the i-th heating cycle is greater than the first time period in the j-th heating cycle, The second period of time in the i-th heating period is less than the second period of time in the j-th heating period, 0 < i < j < N.
A rice cooker according to any one of claims 8 to 12, characterized in that the length of time of at least part of the heating cycles in the N heating cycles is different.
The rice cooker according to claim 13, wherein the length of time of the i-th heating cycle is less than the length of time of the j-th heating cycle, 0 < i < j ≤ N.
A heating control method for a rice cooker, characterized in that the rice cooker comprises a first heating coil and a second heating coil, the first heating coil is located under the rice cooker inner pot, the second heating coil is The bottom of the first heating coil is at a predetermined angle, and the control method includes a first heating stage and a second heating stage, wherein

Controlling the rice cooker for heating in the first heating stage in N1 heating cycles, and controlling the heating time of the second heating coil and the heating time of the first heating coil during the N1 heating cycles The time ratio is greater than a preset ratio threshold, where N1 is a positive integer;

Controlling the rice cooker for heating in the second heating stage in N2 heating cycles, and controlling the heating time of the second heating coil and the heating time of the first heating coil during the N2 heating cycles The proportion of time is reduced, where N2 is a positive integer.
A heating control method for a rice cooker according to claim 15, wherein, in each of said heating cycles,

Controlling the second heating coil to heat to spread the temperature of the rice cooker inner pot from the side to the bottom;

The first heating coil is controlled to be heated such that the temperature of the rice cooker inner pot is diffused upward from the bottom.
The rice cooker heating control method according to claim 15 or 16, wherein each of said heating cycles satisfies 4 seconds < T < 50 seconds, wherein T is a length of time of each of said heating cycles.
A method of controlling heating of a rice cooker according to claim 16, wherein

The first heating coil is controlled not to be heated during the heating of the second heating coil during the N1 heating cycles.
The rice cooker heating control method according to claim 16, wherein the first heating coil is controlled not to be heated when the second heating coil is controlled to be heated in the N2 heating cycles.
The method of controlling the heating of the rice cooker according to any one of claims 15 to 19, further comprising:

Detecting the temperature of the top of the rice cooker;

The rice cooker is controlled to enter the second heating stage when the temperature of the top of the rice cooker reaches a temperature threshold.
A heating control method for a rice cooker according to any one of claims 15 to 20, wherein, in the first heating stage, a heating time of the second heating coil is different from that of the first heating coil The ratio of the time of the heating time is a fixed value, or, in the first heating stage, the time ratio of the heating time of the second heating coil in the i-th heating cycle to the heating time of the first heating coil It is smaller than the time ratio of the heating time of the second heating coil in the jth heating cycle to the heating time of the first heating coil, 0 < i < j ≤ N1.
A heating control method for a rice cooker according to any one of claims 15 to 21, wherein in the second heating stage, the heating time of the second heating coil in the kth heating cycle The time ratio of the heating time to the first heating coil is less than the preset ratio threshold, 0 < k ≤ N2.
A rice cooker characterized by comprising:

a first heating coil and a second heating coil, the first heating coil is located under the rice cooker inner pot, and the second heating coil is at a predetermined angle with a bottom of the first heating coil;

a controller that controls the first heating coil and the second heating coil to perform heating in a first heating phase and a second heating phase, wherein in the first heating phase, the controller N1 heating cycles control the rice cooker for heating, and during the N1 heating cycles, controlling a time ratio of a heating time of the second heating coil to a heating time of the first heating coil is greater than a preset ratio threshold, And controlling the rice cooker to heat the N 2 heating cycles during the second heating phase, and controlling the heating time of the second heating coil during the N2 heating cycles The time ratio of the heating time of the first heating coil is reduced, wherein N1 and N2 are both positive integers.
A rice cooker according to claim 23, wherein said control is performed during each of said heating cycles The second heating coil is controlled to be heated to diffuse the temperature of the rice cooker inner pot from the side to the bottom, and to control the first heating coil to be heated so that the temperature of the rice cooker inner pot is raised from the bottom diffusion.
A rice cooker according to claim 23 or 24, wherein each of said heating cycles satisfies 4 seconds < T < 50 seconds, wherein T is the length of time of each of said heating cycles.
A rice cooker according to claim 24, wherein said controller controls said first heating coil to be unheated while controlling said second heating coil to perform heating during said N1 heating cycles.
A rice cooker according to claim 24, wherein said controller controls said first heating coil not to be heated when said second heating coil is heated during said N2 heating cycles.
The rice cooker according to any one of claims 23 to 27, further comprising:

a temperature detector for detecting an internal temperature of the rice cooker, the temperature detector is located at a top of the rice cooker, and when the temperature detector detects that the temperature reaches a preset temperature, the controller controls the rice cooker to enter the The second heating stage.
The rice cooker according to any one of claims 23 to 28, wherein in the first heating stage, a time ratio of a heating time of the second heating coil to a heating time of the first heating coil is a fixed value, or, in the first heating phase, a time ratio of a heating time of the second heating coil to a heating time of the first heating coil in an i-th heating cycle is less than a heating in the jth The ratio of the heating time of the second heating coil in the cycle to the heating time of the first heating coil, 0 < i < j ≤ N1.
The rice cooker according to any one of claims 23 to 29, wherein the heating time of the second heating coil and the heating time of the first heating coil in the kth heating cycle in the second heating stage The time ratio is less than the preset ratio threshold, 0 < k ≤ N2.
A computer readable storage medium comprising computer instructions that, when executed, cause a heating control method of the rice cooker according to any one of claims 1-7, 15-22.