CN108006714B - Electromagnetic oven and heat preservation control method thereof - Google Patents
Electromagnetic oven and heat preservation control method thereof Download PDFInfo
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- CN108006714B CN108006714B CN201610974293.2A CN201610974293A CN108006714B CN 108006714 B CN108006714 B CN 108006714B CN 201610974293 A CN201610974293 A CN 201610974293A CN 108006714 B CN108006714 B CN 108006714B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/002—Stoves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/062—Arrangement or mounting of electric heating elements on stoves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- Electromagnetism (AREA)
- Electric Stoves And Ranges (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention discloses an induction cooker which comprises a trigger module, a temperature detection module, a heating module and a control module, wherein the trigger module is used for receiving a heat preservation trigger signal of a user; the temperature detection module is used for detecting the temperature of the cookware; and the control module controls the heating module to heat with first heating power after the heat preservation trigger signal is received, and controls the heating module to heat with second heating power when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power. This electromagnetism stove, convenience of customers carries out the operation that keeps warm more, guarantees that the pot has the heat preservation effect when not having the pot cover unanimous. The invention also discloses a heat preservation control method of the induction cooker.
Description
Technical Field
The invention belongs to the technical field of electric appliance manufacturing, and particularly relates to an induction cooker and a heat preservation control method of the induction cooker.
Background
The induction cooker is a common electric appliance used in household cooking, when heat preservation is carried out, a user needs to operate a heat preservation key, the induction cooker uses fixed small firepower to heat, but the user also needs to operate other steps such as frying, porridge cooking and the like before heat preservation is carried out, namely the user needs to operate other functions for heating food for one time, and the heat preservation step is operated for the heated food, so that the induction cooker is inconvenient and low in efficiency; for example, in the related art, the temperature of the cooker is compared with the set heat preservation temperature to obtain a temperature change value, when the cooker is provided with the cooker cover, heat exchange between the inside of the cooker and the outside is less, almost all heat generated by heating with the fixed small fire is used for heating food, the temperature in the cooker rises faster, the temperature change value is larger, when the cooker is not provided with the cooker cover, a part of the heated heat is exchanged with the outside, and the temperature change in the cooker is slow, so that the problem that the heat preservation effects are inconsistent under the two conditions is caused.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention needs to provide an induction cooker, which is more convenient for a user to carry out heat preservation operation and ensures that the pot has consistent heat preservation effect when no pot cover is arranged.
The invention also provides a heat preservation control method of the induction cooker.
In order to solve the above problems, an aspect of the present invention provides an induction cooker, including: the trigger module is used for receiving a heat preservation trigger signal of a user; the temperature detection module is used for detecting the temperature of the cookware; a heating module; the control module controls the heating module to heat with first heating power after detecting the heat preservation trigger signal, and controls the heating module to preserve heat with second heating power when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power.
According to the induction cooker, a user can realize rapid heat preservation only by operating the trigger module without other operations, and compared with the related art in which other cooking steps are required to be operated before the heat preservation function is operated, the induction cooker is more convenient, in addition, the heat preservation temperature is maintained and controlled through temperature threshold value limitation, compared with the related art in which heating control is carried out according to a temperature change value, the induction cooker has the advantages that the heat preservation temperature and the heat preservation effect difference are small under the condition that a cooker is not provided with a cooker cover.
In particular, the first heating power comprises a maximum allowed heating power.
In some embodiments of the invention, the control module is further configured to control the heating module to perform heating in a power adjusting manner when the temperature of the pot is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold.
In some embodiments of the present invention, the control module is further configured to control the heating module to heat at a second heating power with a preset power regulation ratio when the temperature of the pot is greater than or equal to the first temperature threshold, and control the heating module to stop heating when the temperature of the pot reaches the second temperature threshold, and sequentially circulate until a heat preservation setting time is reached.
Specifically, the second heating power is 100-300 watts.
In order to solve the above problems, another aspect of the present invention provides a method for controlling heat preservation of an induction cooker, comprising: after the heat preservation trigger signal is detected, controlling the heating unit to heat at a first heating power; acquiring the temperature of the pot; and when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, controlling the heating unit to keep warm with a second heating power, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power.
According to the heat preservation control method of the induction cooker, after the heat preservation trigger signal is detected, rapid heat preservation can be achieved, other operations are not needed, and compared with the related art that other cooking steps need to be operated before heat preservation, the method is more convenient for users.
In particular, the first heating power comprises a maximum allowed heating power.
In some embodiments of the present invention, when the temperature of the pot is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, the controlling the heating unit to heat with a second heating power further includes: when the temperature of the cookware is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the heating unit is controlled to heat in a power adjusting mode.
In some embodiments of the present invention, when the temperature of the pot is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, the controlling the heating unit to perform heating in a power adjusting manner further includes: when the temperature of the cookware is greater than or equal to a first temperature threshold value, controlling the heating module to heat at a second heating power with a preset power regulation ratio; when the temperature of the pot reaches the second temperature threshold value, controlling the heating module to stop heating; and circulating in sequence until the set time of heat preservation is reached.
Specifically, the second heating power is 100-300 watts.
Drawings
FIG. 1 is a block diagram of an induction hob according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of power curves and temperature curves for a holding control of an induction cooker according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for controlling the heat retention of an induction cooker according to an embodiment of the present invention; and
fig. 4 is a flowchart of a heat-retaining control method of an induction cooker according to an embodiment of the present invention.
Reference numerals:
an induction cooking range (100) is provided,
a triggering module 10, a temperature detection module 20, a heating module 30 and a control module 40.
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 induction cooker and a heat retention control method thereof according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a block diagram of an induction cooker according to an embodiment of the present invention, and as shown in fig. 1, the induction cooker 100 includes a triggering module 10, a temperature detecting module 20, a heating module 30, and a control module 40.
The triggering module 10 is configured to receive a heat preservation triggering signal of a user, for example, an operation key of a heat preservation function provided on the induction cooker 100. The temperature detecting module 20 is used for detecting the temperature of the pot. The heating module 30 heats the pot according to the heating control signal to heat, cook and preserve heat of food.
After detecting the heat preservation trigger signal, the control module 40 controls the heating module 30 to heat at a first heating power, in an embodiment of the present invention, the first heating power may be a higher power, for example, 2000W (watt), in an embodiment of the present invention, the first heating power includes a maximum allowable heating power of the induction cooker 100, and of course, the first heating power may be set as needed, so that the cooking heating of the food may be realized.
That is to say, after entering the heat preservation function, namely, controlling the heating module 30 to heat with higher power, the purpose of heating or cooking food can be achieved, so that the user does not need to perform other cooking steps before starting the heat preservation function, which is more convenient and saves time.
When the temperature of the pot is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the control module 40 controls the heating module 30 to keep warm with the second heating power, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power. That is, when the temperature of the pot is between the first temperature threshold and the second temperature threshold, the heating module 30 is controlled to perform heating at a low heating power to perform heat preservation, that is, the heat preservation is maintained at a low heating power when the target heat preservation temperature range is reached, by the temperature range limitation.
Through the temperature comparison set heating power, no matter the pan has or not the pot cover, in other words, no matter how the heat exchange condition of energy in the pan and external environment is, heat or stop heating with corresponding power when reaching the set temperature threshold, compare in keeping warm with fixed firepower according to the temperature variation value and heat, the technical scheme of this application, no matter the pan has or not the pot cover, with the temperature is injectd, guarantee that the temperature that keeps warm keeps unanimous, the energy that electromagnetism stove 100 consumed is different not big under two kinds of circumstances.
According to the induction cooker 100 of the embodiment of the invention, a user can realize rapid heat preservation only by operating the trigger module 10 without other operations, which is more convenient compared with the related art that other cooking steps need to be operated before the heat preservation function is operated, and in addition, the heat preservation temperature is kept and controlled by limiting the temperature threshold, compared with the related art that heating control is carried out by fixed power according to the temperature change value, the difference of the heat preservation temperature and the heat preservation effect of the pan without the pan cover is small.
Further, when the temperature of the pot is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the control module 40 controls the heating module 30 to perform heating in a power adjusting manner, that is, heating with power adjusting power in the temperature maintaining stage, where the power adjusting manner may be understood as a heating manner performed intermittently according to a certain time ratio.
Specifically, when the temperature of the pot is greater than or equal to the first temperature threshold, the control module 40 controls the heating module 30 to heat with the second heating power of the preset power regulation ratio, and when the temperature of the pot reaches the second temperature threshold, the control module 30 stops heating and sequentially circulates until the set time of heat preservation is reached. The preset power regulation ratio can be understood as a time ratio adopted when heating is performed in a power regulation mode, for example, the power regulation ratio is set to be 2S/10S by adopting 1000W of heating power, namely, the heating is performed in the power regulation mode for 10 seconds, wherein 2 seconds of heating is suspended for 8 seconds, and the heating is equivalent to 200W of heating.
Generally, the second heating power can be 100-300 watts, for example, the power-regulating heating is performed with the second power of 1000W with the power-regulating ratio of 2S/10S, which is equivalent to performing the power-regulating heating control with 200W.
Referring to fig. 2, a heat-preserving control process of the induction cooker 100 according to the embodiment of the present invention is further described.
The rapid heating is performed with the maximum allowable heating power of 2000W, and the heat retention is performed with the power adjustment ratio of 2S/10S (1000W).
As shown in fig. 2, immediately after the soak function is entered, rapid heating is performed at the maximum allowable heating power of 2000W, and the temperature rises rapidly, for example, after the rapid heating time T0, such as the time period T0-T1 in fig. 2, when the temperature reaches the first temperature threshold T1, that is, as the power adjustment point, the heater module 30 is controlled to start power adjustment heating at a power adjustment ratio 2/10 of 1000W, equivalent to heating at 200W, and then the temperature rises, and when the temperature rises to the second temperature threshold T2, i.e., the high temperature stop point is entered, the heating module 30 is controlled to stop heating, and the temperature will drop, as shown in figure 2 for a time period t1-t2, when the temperature gradually returns to the first temperature threshold T1, i.e. the power adjustment point, the heating module 30 is controlled again to perform power adjustment heating at 200W, and after time T2 in fig. 2, the process is circulated in sequence until the set heat preservation time is reached.
In the embodiment of the present invention, it is equivalent to combine the cooking step and the heat preservation step of other steps to optimize the heat preservation control, for example, the heat preservation trigger module 10 may be disposed on the control panel of the induction cooker 100, and after operating the module, a user may perform cooking or heating and subsequent heat preservation simultaneously without operating other functions, or other corresponding functions may be omitted on the induction cooker 100, which is more concise. The pot temperature control device has the advantages that different heating powers are used for heating when different temperatures are controlled by comparing temperatures, the temperature is quickly raised by high firepower when the temperatures are lower, the temperature is maintained by low firepower when the target temperature is reached, the quick heat preservation is realized, the operation of a user is more convenient, and the temperature is kept consistent when a pot cover is arranged on or not.
The method for controlling the heat-retaining of the induction cooker according to the embodiment of the present invention will be described with reference to fig. 3 and 4.
Fig. 3 is a flowchart of a method for controlling heat preservation of an induction cooker according to an embodiment of the present invention, as shown in fig. 3, the method includes the steps of:
and S1, controlling the heating unit to heat at the first heating power after detecting the heat preservation trigger signal.
In an embodiment of the present invention, the first heating power may be a higher power, for example 2000W (watt), and in an embodiment of the present invention, the first heating power includes a maximum allowable heating power of the induction cooker, but the first heating power may be set as required, so that the cooking heating of the food can be realized. That is to say, when detecting user operation heat preservation trigger module, control heating module heats with higher power, can realize heating or the purpose of culinary art to food, therefore need not the user and carries out the operation of other culinary art steps before starting the heat preservation function again, and is more convenient, saves time.
And S2, obtaining the temperature of the pot. For example, the pot temperature can be detected by the temperature detection module, and the detected temperature is transmitted to the control module of the induction cooker.
S3, when the temperature of the pot is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the heating unit is controlled to keep warm with the second heating power.
The first temperature threshold is smaller than the second temperature threshold, and the second heating power is smaller than the first heating power.
When the temperature of the cooker is between the first temperature threshold and the second temperature threshold, the heating module is controlled to heat at a lower heating power to perform heat preservation, namely, heat preservation maintenance is performed through temperature range limitation. The temperature is compared with the set temperature maintaining range, no matter whether the cooker is provided with the cooker cover or not, heating is carried out or heating is stopped when the set temperature threshold is reached, compared with heat preservation control carried out by using a temperature change value, the heat preservation temperature is kept consistent, and the difference of energy consumed by the cooker with the cooker cover or without the cooker cover is not large under two conditions.
According to the heat preservation control method of the induction cooker, after the heat preservation trigger signal is detected, rapid heat preservation can be achieved, other operations are not needed, and compared with the related art that other cooking steps need to be operated before heat preservation, the method is more convenient for users.
Further, when the temperature of the pot is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the heating unit is controlled to perform heating in a power adjusting manner, that is, heating is performed at a power adjusting power in a temperature maintaining stage.
Specifically, referring to fig. 2, when the temperature of the pot is greater than or equal to the first temperature threshold, the heating module is controlled to heat at a second heating power with a preset power regulation ratio; when the temperature of the pot reaches a second temperature threshold value, controlling the heating module to stop heating; and circulating in sequence until the set time of heat preservation is reached.
Generally, the second heating power can adopt 100-300 watts, for example, the power-adjusting heating is carried out at the second power of the power-adjusting ratio of 2S/10S (1000W), which is equivalent to the power-adjusting heating control adopting 200W.
Fig. 4 is a flowchart of a heat preservation control method for an induction cooker according to an embodiment of the present invention, and as shown in fig. 4, the control method includes:
and S410, detecting that the heat preservation function is started.
And S420, controlling the heating module to heat at high power, for example 2000W.
S430, judging whether the temperature of the pot reaches the first temperature threshold value, namely the power adjusting point temperature, if so, entering the step S440, otherwise, returning to the step S420.
And S440, adjusting work and heating with second heating power.
S450, judging whether the temperature of the pot reaches a second temperature threshold value, namely the highest heating temperature, if so, entering the step S460, otherwise, returning to the step S440.
And S460, stopping heating.
And S470, judging whether the preset heat preservation time is reached or a heat preservation ending instruction is received, if so, ending, otherwise, returning to the step S430.
According to the heat preservation control method of the induction cooker, after the induction cooker enters the heat preservation function, high-power heating is used, when the target temperature is reached, low-power heating is used for temperature control, so that food can reach a heat preservation state as soon as possible, the operation of a user is facilitated, and the influence of the external environment on heat preservation maintaining temperature is reduced.
In the description of the present specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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 (6)
1. An induction cooker, comprising:
the trigger module is used for receiving a heat preservation trigger signal of a user;
the temperature detection module is used for detecting the temperature of the cookware;
a heating module;
the control module controls the heating module to heat with first heating power after detecting the heat preservation trigger signal, and controls the heating module to preserve heat with second heating power when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power;
the control module is further used for controlling the heating module to heat in a power adjusting mode when the temperature of the cookware is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold;
the control module is further used for controlling the heating module to heat with a second heating power of a preset power regulation ratio when the temperature of the pot is greater than or equal to the first temperature threshold value, and controlling the heating module to stop heating and to sequentially circulate until the set heat preservation time is reached when the temperature of the pot reaches the second temperature threshold value.
2. The induction hob according to claim 1, characterized in, that said first heating power comprises a maximum allowed heating power.
3. The induction cooker according to claim 1, wherein the second heating power is 100-300 watts.
4. A heat preservation control method of an induction cooker is characterized by comprising the following steps:
after the heat preservation trigger signal is detected, controlling the heating unit to heat at a first heating power;
acquiring the temperature of the pot; and
when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, controlling the heating unit to keep warm with a second heating power, wherein the first temperature threshold is less than the second temperature threshold, and the second heating power is less than the first heating power;
wherein, when the temperature of pan is greater than or equal to first temperature threshold and is less than or equal to second temperature threshold, control the heating unit heats with second heating power, further include: when the temperature of the cookware is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, controlling the heating unit to heat in a power adjusting mode;
when the temperature of pan is greater than or equal to first temperature threshold and is less than or equal to second temperature threshold, control heating unit heats with transferring the merit mode, further includes: when the temperature of the cookware is greater than or equal to a first temperature threshold value, controlling the heating module to heat at a second heating power with a preset power regulation ratio; when the temperature of the pot reaches the second temperature threshold value, controlling the heating module to stop heating; and circulating in sequence until the set time of heat preservation is reached.
5. The method of claim 4, wherein the first heating power comprises a maximum allowable heating power.
6. The method for controlling heat preservation of an electromagnetic oven as claimed in claim 4, wherein the second heating power is 100-300 watts.
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| CN111380088B (en) * | 2018-12-29 | 2022-10-25 | 佛山市顺德区美的电热电器制造有限公司 | Induction cooker and method and device for identifying cooking pot on induction cooker |
| CN111692617B (en) * | 2019-03-14 | 2023-04-25 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of induction cooker and induction cooker |
| CN109846336A (en) * | 2019-03-20 | 2019-06-07 | 珠海格力电器股份有限公司 | Cooking apparatus and its control method |
| CN110989407A (en) * | 2019-11-29 | 2020-04-10 | 广东美的厨房电器制造有限公司 | Cooking device, control method thereof and computer storage medium |
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| JPH0225637A (en) * | 1988-07-13 | 1990-01-29 | Sanyo Electric Co Ltd | Electronic control type cooker |
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| CN104456654A (en) * | 2013-09-13 | 2015-03-25 | 美的集团股份有限公司 | Induction cooker and control method thereof |
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