CN108391331B - Power control method and device and electromagnetic heating equipment - Google Patents
Power control method and device and electromagnetic heating equipment Download PDFInfo
- Publication number
- CN108391331B CN108391331B CN201810040772.6A CN201810040772A CN108391331B CN 108391331 B CN108391331 B CN 108391331B CN 201810040772 A CN201810040772 A CN 201810040772A CN 108391331 B CN108391331 B CN 108391331B
- Authority
- CN
- China
- Prior art keywords
- time period
- power
- heating
- equal
- heating power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 217
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cookers (AREA)
Abstract
The invention provides a power control method and device and electromagnetic heating equipment. The power control method comprises the following steps: detecting the number of surges in a continuous time period; if the number of times of surge in the continuous time period reaches a preset threshold value, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current moment is greater than a preset second heating power, the heating power is reduced from the first heating power to the preset second heating power when the continuous time period is over. The power control method provided by the invention avoids frequent triggering surge protection by reducing the heating power of the electromagnetic heating equipment, and reduces or even eliminates the intermittent heating phenomenon.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a power control method and device and electromagnetic heating equipment.
Background
Surge refers to transient overvoltage above normal operating voltage and is a sharp pulse that occurs in only a few millionths of a second. The electromagnetic heating product is used for heating a pot by generating eddy current at the bottom of the pot through an alternating magnetic field, and the alternating magnetic field is generated by enabling a coil panel and a resonant capacitor to resonate through switching on and off of an Insulated Gate Bipolar Transistor (IGBT) which is a high-power device. In electromagnetic heating products, surges have great risks of damaging IGBTs, bridge rectifier, energy storage capacitors and the like, and can cause the circuit to burn out in a moment.
In order to prevent damage to the electromagnetic heating product caused by surge, a surge protection circuit is generally added to the electromagnetic heating product. When surge happens, surge protection is triggered, and the surge protection circuit can timely close the power output of the product, so that the damage rate of the product is reduced.
However, when the surge often occurs, for example, there is heavy equipment, a large generator or is close to the factory around the living environment where the user is located, or, when the power grid environment in the user's home is poor, the electromagnetic heating product may often occur due to the phenomenon of intermittent heating caused by surge protection during working, and even cause the electromagnetic heating product to be unable to work in severe cases, which causes the user to misunderstand that the equipment is damaged, improves the maintenance rate of the electromagnetic heating product, and the user experience is very poor.
Disclosure of Invention
In order to solve at least one of the problems mentioned in the background art, the invention provides a power control method, a power control device and an electromagnetic heating device, wherein the intermittent heating phenomenon is reduced or even eliminated by reducing the heating power of the electromagnetic heating device.
In order to achieve the above object, the present invention provides a power control method comprising: detecting the number of surges in a continuous time period; if the number of times of surge in the continuous time period reaches a preset threshold value, the continuous time period is smaller than or equal to a first preset time period, and the first heating power adopted at the current moment is larger than a preset second heating power, the heating power is reduced from the first heating power to the preset second heating power when the continuous time period is over.
According to the power control method, under the scene that surge frequently occurs, by reducing the power of the electromagnetic heating equipment, the phenomenon that the power output of a product is closed due to frequent triggering of surge protection is avoided, the intermittent heating phenomenon of the electromagnetic heating equipment is reduced or even eliminated, a user is prevented from mistakenly considering that the equipment is damaged, the product maintenance rate is reduced, and the user experience is improved.
In an embodiment of the present invention, the method further includes: detecting the surge times in a second preset time period; if the number of times of surge in the second preset time period is smaller than the preset threshold value, increasing the heating power from the second heating power to a third heating power at the end of the second preset time period; and if the number of times of surge in the second preset time period is greater than or equal to the preset threshold, returning to the step of detecting the number of times of surge in the second preset time period.
According to the power control method, in a scene that the surge is not frequently generated, the heating efficiency of the electromagnetic heating equipment is ensured by improving the power of the electromagnetic heating equipment.
In an embodiment of the invention, the third heating power is equal to the first heating power.
In an embodiment of the invention, the second preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
In the above embodiment of the present invention, the first preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
In the above embodiment of the present invention, before the detecting the number of surges in the continuous time period, the method further includes: and determining that the heating duration reaches a third preset time period.
In the above embodiment of the present invention, the third preset time period is greater than or equal to 1 minute and less than or equal to 3 minutes.
The present invention also provides a power control apparatus, comprising: the device comprises a detection module and a power adjusting module. The detection module is used for detecting the surge times in the continuous time period; and the power adjusting module is used for reducing the heating power from the first heating power to the preset second heating power when the continuous time period is over if the number of times of surge in the continuous time period is greater than or equal to a preset threshold value, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current moment is greater than the preset second heating power.
In an embodiment of the present invention, the detecting module is further configured to detect a number of surges within a second preset time period; the power adjusting module is further configured to increase the heating power from the second heating power to a third heating power after the second preset time period is ended if the number of times of surge within the second preset time period is smaller than the preset threshold; the detection module is further configured to detect the number of surges in the second preset time period again if the number of surges in the second preset time period is greater than or equal to the preset threshold.
In an embodiment of the invention, the third heating power is equal to the first heating power.
In an embodiment of the invention, the second preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
In the above embodiment of the present invention, the first preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
In the above embodiment of the present invention, the apparatus further includes a determining module, where the determining module is configured to: and determining that the heating duration reaches a third preset time period.
In the above embodiment of the present invention, the third preset time period is greater than or equal to 1 minute and less than or equal to 3 minutes.
The invention also provides electromagnetic heating equipment comprising the power control device provided by any embodiment of the invention.
The invention also provides electromagnetic heating equipment which comprises a single chip microcomputer, wherein the single chip microcomputer is used for executing the power control method provided by any embodiment of the invention.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a power control method according to an embodiment of the present invention;
fig. 2 is a flowchart of a power control method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides a power control method, and aims to solve the technical problem that electromagnetic heating equipment is heated intermittently and frequently when surge occurs frequently in the prior art. Through reducing electromagnetic heating equipment's heating power, avoided frequently triggering surge protection, can reduce or even eliminate intermittent heating phenomenon, promoted electromagnetic heating equipment's job stabilization nature.
Fig. 1 is a flowchart of a power control method according to an embodiment of the present invention. In the power control method provided by this embodiment, the execution subject may be a power control device, and the power control device may be integrated in the electromagnetic heating apparatus. The electromagnetic heating device may be, for example, an electromagnetic oven, an electromagnetic heating electric cooker, an electromagnetic heating kettle, or the like. As shown in fig. 1, the power control method provided in this embodiment may include:
and S101, detecting the surge times in the continuous time period.
Specifically, surge protection may be triggered when a surge occurs, and the surge protection circuit may shut down the power output of the product. For an accidental surge or when the surge is not frequent, even if the surge protection is triggered, the power of the product is not frequently turned off to cause frequent intermittent heating. When the surge happens frequently, the power output of the product is turned off frequently, so that the electromagnetic heating equipment heats intermittently frequently. By detecting the number of times of surge occurrence in a continuous period of time, whether the scene is a surge frequent occurrence scene can be determined.
The method for detecting the surge is not limited in this embodiment, and any existing surge detection method may be adopted. Optionally, the surge is determined by detecting the current and/or by detecting the voltage. For example, if the detected current value is greater than a preset reference current value, it may be determined that a surge occurs.
S102, if the number of times of surge in the continuous time period is larger than or equal to a preset threshold value, the continuous time period is smaller than or equal to a first preset time period, and the first heating power adopted at the current moment is larger than a preset second heating power, reducing the heating power from the first heating power to the preset second heating power when the continuous time period is over.
Specifically, the electromagnetic heating device is currently heated with a first heating power. If the number of times of surge in the continuous time period is greater than or equal to a preset threshold value, the continuous time period is shorter than a first preset time period, and the situation is indicated as a scene that the surge frequently occurs. When the number of detected surges reaches a preset threshold value, the heating power of the electromagnetic heating equipment is reduced so as to avoid triggering surge protection, namely, the heating power of the electromagnetic heating equipment is reduced from the first heating power to the preset second heating power.
The specific value of the first preset time period is not limited in this embodiment, and is set as needed. For example, the first preset time period may range from 2 to 5 minutes.
The specific values of the preset threshold and the second heating power are not limited in this embodiment, and are set as needed. For example, the second heating power may be 1400W.
Therefore, in a scene where a surge frequently occurs, the power control method provided by this embodiment reduces the power of the electromagnetic heating device, thereby avoiding the situation that the power output of a product is turned off due to frequent triggering of the surge protection, reducing or even eliminating the intermittent heating phenomenon of the electromagnetic heating device, avoiding a user from mistakenly considering that the device is damaged, reducing the product maintenance rate, and improving the user experience.
It should be noted that the power control method provided in this embodiment may be a process that is executed cyclically for detecting the surge and adjusting the heating power of the electromagnetic heating device. That is, S101 and S102 are repeatedly executed to improve the real-time performance of power control.
Optionally, the power control method provided in this embodiment may further include:
and if the continuous time period reaches a first preset time period and the surge frequency in the first preset time period is less than a preset threshold value, not adjusting the heating power.
Specifically, the electromagnetic heating device is currently heated with a first heating power. If the number of times of surge in the first preset time period is smaller than a preset threshold, the situation is not a scene where surge frequently occurs, and surge protection cannot be frequently triggered. At this moment, heating power may not be adjusted, that is, the electromagnetic heating device still adopts the first heating power to heat, so that heating efficiency of the electromagnetic heating device is ensured. Thereafter, S101 and S102 may be repeatedly performed.
Optionally, the power control method provided in this embodiment may further include:
and detecting the surge times in a second preset time period.
And if the number of times of surge in the second preset time period is smaller than the preset threshold value, increasing the heating power from the second heating power to a third heating power at the end of the second preset time period.
And if the surge frequency in the second preset time period is greater than or equal to the preset threshold, returning to the step of detecting the surge frequency in the second preset time period.
Specifically, after the heating power is reduced from the first heating power to a preset second heating power, the number of surges in a second preset time period is continuously detected. If the number of times of surge in the second preset time period is smaller than the preset threshold, it is indicated that the scene is not a scene in which surge frequently occurs, and surge protection is not frequently triggered. At this time, the heating power of the electromagnetic heating device may be increased, that is, the heating power of the electromagnetic heating device is increased from the second heating power to the third heating power, so that the heating efficiency of the electromagnetic heating device is ensured. Thereafter, execution of S101 and S102 may return.
If the number of times of surge in the first preset time period is greater than or equal to a preset threshold value, the situation that the surge still frequently occurs is indicated. The heating power at this time is the second heating power, and the heating power may not be adjusted, that is, the electromagnetic heating device still heats with the second heating power, so that the heating efficiency of the electromagnetic heating device is ensured. Thereafter, the step of detecting the number of surges within the second preset time period may be re-performed.
The specific value of the third heating power is not limited in this embodiment, and is set as needed. Optionally, the third heating power may be equal to the first heating power, that is, the heating power of the electromagnetic heating device is recovered from the second heating power to the first heating power, so that the working stability and the heating efficiency of the electromagnetic heating device are improved.
The specific value of the second preset time period is not limited in this embodiment, and is set as needed. For example, the second preset period of time may range from 2 to 5 minutes. Optionally, a value of the second preset time period may be equal to a value of the first preset time period.
Optionally, before S101, the power control method provided in this embodiment may further include:
and judging whether the continuous heating time of the electromagnetic heating equipment reaches a third preset time period.
And executing S101-S102 if the electromagnetic heating equipment is determined to be continuously heated for the third preset time period.
And if the electromagnetic heating equipment is determined not to be heated continuously for the third preset time period, continuing heating until the continuous heating time reaches the third preset time period, and then executing S101-S102.
Specifically, the implementation mode mainly aims at the scene of initial starting of the electromagnetic heating equipment after the electromagnetic heating equipment is powered on. After the electromagnetic heating device is powered on, the power grid may fluctuate, resulting in the occurrence of surge. After the electromagnetic heating equipment works for a period of time, whether surge occurs frequently is judged, the working stability of the electromagnetic heating equipment is improved, and the problem that the working stability is poor due to the fact that power is adjusted frequently in the initial power-on stage of a product is avoided.
The specific value of the third preset time period is not limited in this embodiment, and is set as needed. For example, the third preset time period may range from 1 to 3 minutes. Alternatively, the third preset time period may be 1 minute.
The embodiment provides a power control method, which comprises the following steps: and detecting the number of times of surge in the continuous time period, and if the number of times of surge in the continuous time period is greater than or equal to a preset threshold value, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current moment is greater than a preset second heating power, reducing the heating power from the first heating power to the preset second heating power when the continuous time period is over. According to the power control method provided by the embodiment, under the scene that surge frequently occurs, the power of the electromagnetic heating equipment is reduced, even the intermittent heating phenomenon of the electromagnetic heating equipment is eliminated, the phenomenon that a user thinks that the equipment is damaged by mistake is avoided, the product maintenance rate is reduced, and the user experience is improved.
Fig. 2 is a flowchart of a power control method according to a second embodiment of the present invention. The embodiment of the present invention is based on the embodiment shown in fig. 1, and a detailed implementation manner of the power control method is described in detail by specific numerical values. In this embodiment, the first preset time period is 4 minutes, the second preset time period is 4 minutes, the third preset time period is 1 minute, the preset threshold is 5 times, the first heating power is equal to the third heating power, and the second heating power is 1400W. As shown in fig. 2, the power control method provided in this embodiment may include:
s201, judging whether the continuous heating time of the electromagnetic heating equipment reaches 1 minute.
If yes, go to S202.
If not, repeating the step S201 until the electromagnetic heating device continuously heats for 1 minute.
S202, detecting whether the number of surging times in the continuous time period reaches 5 times, and judging whether the continuous time period reaches 4 minutes.
If the number of surges in the continuous time period reaches 5 times, the continuous time period is shorter than or reaches 4 minutes, and the heating power (first heating power) at the present time is greater than 1400W, S203 is performed.
If the number of surges in 4 minutes is less than 5 times, S202 is repeatedly executed.
And S203, reducing the heating power from the first heating power to 1400W.
S204 is performed.
And S204, detecting whether the surging times in 4 minutes reach 5 times.
If the number of surges in 4 minutes is less than 5, S205 is executed.
If the number of surges in 4 minutes is greater than or equal to 5 times, S204 is repeatedly performed.
And S205, increasing the heating power to the first heating power.
And returns to execution S202.
In this embodiment, the electromagnetic heating device is powered on and then started. After the heating is continued for 1 minute, whether the current environment is an environment in which the surge frequently occurs or not is judged. The continuous time period is 4 minutes at the maximum, i.e. the number of surges within 4 minutes per detection is detected at the maximum. And if the number of surges in 4 minutes is less than 5, determining that the scenes are not frequent in surges, and not adjusting the power. If the number of surges in the continuous time period reaches 5 times, the continuous time period is shorter than or equal to 4 minutes, and the heating power (first heating power) at the time is larger than 1400W, the intermittent heating of the electromagnetic heating equipment is reduced or even eliminated by reducing the heating power to 1400W, avoiding frequent triggering of surge protection. After that, the number of surges in 4 minutes was again detected. If the number of surges in 4 minutes is less than 5 times, the heating efficiency is ensured by boosting the heating power. And if the number of surging times in 4 minutes is more than or equal to 5, the power is not adjusted, and the frequent triggering of surging protection is avoided.
The embodiment provides a power control method, which reduces or even eliminates the intermittent heating phenomenon of the electromagnetic heating equipment by reducing the power of the electromagnetic heating equipment in the scene of frequent occurrence of surge, avoids the phenomenon that a user mistakenly thinks that the equipment is damaged, reduces the product maintenance rate, and improves the user experience.
Fig. 3 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention. The power control apparatus provided in this embodiment may be integrated in an electromagnetic heating device, and is configured to execute the power control method provided in any one of the method embodiments in fig. 1 to fig. 2. As shown in fig. 3, the power control apparatus provided in this embodiment may include:
and the detection module 11 is used for detecting the surge times in the continuous time period.
The power adjustment module 12 is configured to reduce the heating power from the first heating power to a preset second heating power when the continuous time period ends if the number of times of surge in the continuous time period is greater than or equal to a preset threshold, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current time is greater than the preset second heating power.
Optionally, the detecting module 11 is further configured to detect a number of times of surge in a second preset time period.
The power adjustment module 12 is further configured to increase the heating power from the second heating power to a third heating power after the second preset time period is ended if the number of times of surge in the second preset time period is smaller than a preset threshold.
The detecting module 11 is further configured to detect the number of times of surge in the second preset time period again if the number of times of surge in the second preset time period is greater than or equal to the preset threshold.
Optionally, the third heating power is equal to the first heating power.
Optionally, the second preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
Optionally, the first preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
Optionally, the apparatus further includes a determining module 13, where the determining module 13 is configured to:
and determining that the heating duration reaches a third preset time period.
Optionally, the third preset time period is greater than or equal to 1 minute and less than or equal to 3 minutes.
The power control apparatus provided in this embodiment is used to execute the power control method provided in any one of the method embodiments in fig. 1 to fig. 2, and the technical principle and the technical effect are similar, which are not described herein again.
An embodiment of the present invention further provides an electromagnetic heating apparatus, which may include the power control device provided in the embodiment shown in fig. 3.
It should be noted that the present embodiment does not limit the type of the electromagnetic heating device. For example, the electromagnetic heating device may be an electromagnetic oven, an electromagnetic heating electric rice cooker, an electromagnetic heating kettle, an electromagnetic heating pressure cooker, or the like.
The electromagnetic heating device provided by this embodiment includes the power control apparatus provided by the embodiment shown in fig. 3, and the technical principle and technical effect are similar, and are not described herein again.
The embodiment of the invention also provides electromagnetic heating equipment which can comprise a single chip microcomputer, and the single chip microcomputer can be used for executing the power control method provided by any one of the method embodiments shown in the figures 1-2.
It should be noted that the present embodiment does not limit the type of the electromagnetic heating device. For example, the electromagnetic heating device may be an electromagnetic oven, an electromagnetic heating electric rice cooker, an electromagnetic heating kettle, an electromagnetic heating pressure cooker, or the like.
It should be noted that, the present embodiment does not limit the type of the single chip, and the setting is performed according to the requirement.
The electromagnetic heating device provided in this embodiment includes a single chip microcomputer, which can be used to execute the power control method provided in any one of the method embodiments in fig. 1 to fig. 2, and the technical principle and the technical effect are similar, and are not described herein again.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (14)
1. A method of power control, comprising:
detecting the number of surges in a continuous time period;
if the number of times of surge in the continuous time period reaches a preset threshold value, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current moment is greater than a preset second heating power, reducing the heating power from the first heating power to the preset second heating power at the end of the continuous time period;
before the detecting the number of surges in the continuous time period, the method further comprises:
and determining that the heating duration reaches a third preset time period.
2. The power control method of claim 1, further comprising:
detecting the surge times in a second preset time period;
if the number of times of surge in the second preset time period is smaller than the preset threshold value, increasing the heating power from the second heating power to a third heating power at the end of the second preset time period;
and if the number of times of surge in the second preset time period is greater than or equal to the preset threshold, returning to the step of detecting the number of times of surge in the second preset time period.
3. Power control method according to claim 2, characterized in that the third heating power is equal to the first heating power.
4. The power control method of claim 2, wherein the second predetermined period of time is greater than or equal to 2 minutes and less than or equal to 5 minutes.
5. The power control method according to any one of claims 1 to 4, wherein the first preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
6. The power control method of claim 1, wherein the third predetermined period of time is greater than or equal to 1 minute and less than or equal to 3 minutes.
7. A power control apparatus, comprising:
the detection module is used for detecting the surge times in the continuous time period;
the power adjusting module is used for reducing the heating power from the first heating power to a preset second heating power when the continuous time period is over if the number of times of surge in the continuous time period is greater than or equal to a preset threshold value, the continuous time period is less than or equal to a first preset time period, and the first heating power adopted at the current moment is greater than the preset second heating power;
the apparatus further comprises a determination module to:
and determining that the heating duration reaches a third preset time period.
8. The power control device of claim 7, wherein the detecting module is further configured to detect a number of surges within a second preset time period;
the power adjusting module is further configured to increase the heating power from the second heating power to a third heating power after the second preset time period is ended if the number of times of surge within the second preset time period is smaller than the preset threshold;
the detection module is further configured to detect the number of surges in the second preset time period again if the number of surges in the second preset time period is greater than or equal to the preset threshold.
9. Power control device according to claim 8, characterized in that the third heating power is equal to the first heating power.
10. The power control apparatus of claim 8, wherein the second preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
11. The power control device according to any one of claims 7 to 10, wherein the first preset time period is greater than or equal to 2 minutes and less than or equal to 5 minutes.
12. The power control device of claim 7, wherein the third predetermined period of time is greater than or equal to 1 minute and less than or equal to 3 minutes.
13. An electromagnetic heating apparatus, characterized by comprising a power control device according to any one of claims 7 to 12.
14. An electromagnetic heating apparatus, characterized by comprising a single chip microcomputer for executing the power control method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040772.6A CN108391331B (en) | 2018-01-16 | 2018-01-16 | Power control method and device and electromagnetic heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040772.6A CN108391331B (en) | 2018-01-16 | 2018-01-16 | Power control method and device and electromagnetic heating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108391331A CN108391331A (en) | 2018-08-10 |
| CN108391331B true CN108391331B (en) | 2021-02-09 |
Family
ID=63076796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810040772.6A Active CN108391331B (en) | 2018-01-16 | 2018-01-16 | Power control method and device and electromagnetic heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108391331B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444585B (en) * | 2018-11-09 | 2021-03-16 | 重庆仕益产品质量检测有限责任公司 | Quality detection method and device for electric blanket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107548177A (en) * | 2016-06-24 | 2018-01-05 | 佛山市顺德区美的电热电器制造有限公司 | Power switch pipe overvoltage abnormal protection method and device in Electromagnetic Heating cooking system |
| CN109963367A (en) * | 2017-12-25 | 2019-07-02 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetism cooking pot and its lightning surge protection control method and device |
-
2018
- 2018-01-16 CN CN201810040772.6A patent/CN108391331B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107548177A (en) * | 2016-06-24 | 2018-01-05 | 佛山市顺德区美的电热电器制造有限公司 | Power switch pipe overvoltage abnormal protection method and device in Electromagnetic Heating cooking system |
| CN109963367A (en) * | 2017-12-25 | 2019-07-02 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetism cooking pot and its lightning surge protection control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108391331A (en) | 2018-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101778694B1 (en) | High-frequency heating device and method and apparatus for controlling power supply of the same | |
| CN103763803B (en) | The control method of electromagnetic resonance control circuit, electromagnetic heater and transistor | |
| CN105992419B (en) | Electromagnetic heating system and zero-crossing switching-on detection method and device of switching tube of electromagnetic heating system | |
| CN107087321B (en) | Method for adjusting hard turn-on voltage of IGBT and induction cooker | |
| CN108391331B (en) | Power control method and device and electromagnetic heating equipment | |
| CN108377587B (en) | Power control method and device and electromagnetic heating equipment | |
| CN111786361A (en) | Household appliance and PFC current-limiting protection control circuit and method for household appliance | |
| CN107787059B (en) | Heating method for high-temperature protection of induction cooker and induction cooker | |
| CN107484284B (en) | Electromagnetic oven | |
| EP2690923A1 (en) | A power supply device for a household appliance and an operating method thereof | |
| KR102175634B1 (en) | Cooker improving operation stability and operating method thereof | |
| CN114322227A (en) | Compressor control method and device, household appliance and storage medium | |
| CN110972344B (en) | Electromagnetic heating circuit, electromagnetic heating appliance and protection method of electromagnetic heating circuit | |
| CN206755257U (en) | Electromagnetic oven | |
| CN108736870B (en) | Drive control method, drive control device and cooking utensil | |
| CN112888099B (en) | IGBT control method of half-bridge electromagnetic appliance and half-bridge electromagnetic heating appliance | |
| CN113900394B (en) | Control method of drive control circuit, drive control circuit and cooking appliance | |
| CN113367578B (en) | Household electrical appliance, control method, control device and storage medium for household electrical appliance | |
| CN112713885B (en) | Driving method and driving device of silicon controlled rectifier and heating appliance | |
| CN217388671U (en) | IGBT protection circuit and electromagnetic heating device | |
| CN112019020B (en) | Operation control method, device, circuit, household appliance and computer storage medium | |
| CN216122933U (en) | Heating system comprising multi-section electromagnetic heating unit and electromagnetic heating equipment | |
| CN109462905B (en) | Time-sharing power supply circuit and method and electromagnetic heating appliance | |
| CN112888100B (en) | Electromagnetic heating control method of half-bridge electromagnetic appliance and half-bridge electromagnetic appliance | |
| JP5515720B2 (en) | Induction heating cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |