CN221055072U - Electromagnetic oven with energy-saving mode - Google Patents
Electromagnetic oven with energy-saving mode Download PDFInfo
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- CN221055072U CN221055072U CN202420477433.5U CN202420477433U CN221055072U CN 221055072 U CN221055072 U CN 221055072U CN 202420477433 U CN202420477433 U CN 202420477433U CN 221055072 U CN221055072 U CN 221055072U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 42
- 239000010703 silicon Substances 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000010411 cooking Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses an electromagnetic oven with an energy-saving mode, which relates to the technical field of intelligent household appliances and comprises a microcontroller, a silicon controlled rectifier, an optical isolator, a zero-crossing detection circuit, a trigger circuit and a communication module, wherein the input end of the zero-crossing detection circuit is connected with a power supply; the heating power can be accurately controlled through the microcontroller and the controllable silicon, so that only the minimum energy required for finishing a specific cooking task is ensured to be used, and the energy waste is reduced; the control circuit is electrically isolated from the high-power part through the optical isolator, so that the safety of equipment is improved, and the risk of electrical faults is reduced.
Description
Technical Field
The utility model relates to the technical field of intelligent household appliances, in particular to an electromagnetic oven with an energy-saving mode.
Background
The induction cooker which is widely applied to modern kitchens at present is a cooker plate which heats the induction cooker by utilizing a strong magnetic field generated by LC resonance, and open fire is not required to be generated to heat a pot, so that compared with the traditional open fire heating cooker, the induction cooker is an energy-saving kitchen ware which is high-efficient and clean; however, the existing induction cooker often operates with fixed or selected power in the cooking process, which may result in energy waste, especially when long-time cooking is performed by steaming or boiling soup, the heating power of the induction cooker needs to be precisely controlled, so that the energy waste is reduced.
Disclosure of utility model
Based on this, the present utility model aims to provide an induction cooker with an energy-saving mode, so as to solve the above technical problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electromagnetism stove with energy-conserving mode, includes microcontroller, silicon controlled rectifier, opto-isolator, zero crossing detection circuit, trigger circuit and communication module, zero crossing detection circuit's input is connected with the power, zero crossing detection circuit's output is connected with microcontroller's input, microcontroller's output is connected to opto-isolator's input, opto-isolator's output is connected with trigger circuit's input, trigger circuit's output is connected with silicon controlled rectifier's gate, silicon controlled rectifier's main electrode is connected with power and heating coil respectively, communication module is connected to microcontroller.
The utility model further provides that the silicon controlled rectifier is a semiconductor device, the silicon controlled rectifier comprises three electrodes, the three electrodes comprise a gate electrode and two main electrodes, the gate electrode is used for controlling the on or off of the silicon controlled rectifier, and the two main electrodes are respectively connected to a power supply and a heating coil.
The utility model further provides that the optical isolator comprises a light emitting diode, an isolation medium and a photoelectric detector, wherein the light emitting diode is arranged at the input end of the optical isolator, and the isolation medium is positioned between the light emitting diode and the photoelectric detector.
The utility model further provides that the zero-crossing detection circuit comprises a transformer, a rectifier, a filter capacitor, a comparator and an output signal regulator, wherein the transformer is arranged at the input end of the zero-crossing detection circuit and is connected with the input end of the rectifier, the output end of the transformer is connected with the input end of the filter capacitor, the output end of the filter capacitor is connected with the input end of the comparator, and the output end of the comparator is connected with the input end of the output signal regulator.
The utility model is further arranged that the trigger circuit comprises a transistor and a resistor, wherein the transistor is used for amplifying an output signal of the microcontroller to a level capable of triggering the silicon controlled rectifier; the resistor is used for limiting the current flowing to the gate electrode of the controlled silicon and protecting the controlled silicon from being damaged by high current.
The utility model is further arranged that the specific model of the microcontroller is ATmega328P.
The utility model further provides that the specific model of the silicon controlled rectifier is BTA16.
The utility model is further arranged that the rectifier is a rectifier diode bridge, the rectifier being used for converting an alternating current power supply into a direct current power supply.
In summary, the utility model has the following advantages:
1. The utility model can accurately control the heating power through the microcontroller and the controllable silicon, ensures that only the minimum energy required for finishing a specific cooking task is used, and reduces the energy waste.
2. According to the utility model, the control circuit is electrically isolated from the high-power part through the optical isolator, so that the safety of equipment is improved, the risk of electrical faults is reduced, and a user is protected from electric shock injury.
3. The user can control the heating temperature and power more precisely, allowing the user to fine tune to the cooking needs to achieve the best cooking results.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a schematic diagram of a zero-crossing detection circuit according to the present utility model.
In the figure: 1. a microcontroller; 2. a silicon controlled rectifier; 3. an optical isolator; 4. a zero-crossing detection circuit; 5. a trigger circuit; 6. and a communication module.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
An induction cooker with an energy-saving mode is shown in fig. 1, and comprises a microcontroller 1, a silicon controlled rectifier 2, an optical isolator 3, a zero-crossing detection circuit 4, a trigger circuit 5 and a communication module 6, wherein the input end of the zero-crossing detection circuit 4 is connected with a power supply, the output end of the zero-crossing detection circuit 4 is connected with the input end of the microcontroller 1, the output end of the microcontroller 1 is connected with the input end of the optical isolator 3, the output end of the optical isolator 3 is connected with the input end of the trigger circuit 5, the output end of the trigger circuit 5 is connected with the gate electrode of the silicon controlled rectifier 2, the main electrode of the silicon controlled rectifier 2 is respectively connected with the power supply and a heating coil, and the communication module 6 is connected to the microcontroller 1.
Specifically, the zero-crossing detection circuit 4 is configured to detect a zero-crossing point of the power supply and transmit zero-crossing point information to the microcontroller 1, and further, the zero-crossing point of the power supply is a time point when the ac power waveform passes through a zero voltage point when switching between positive and negative half periods, and in the ac power supply, the voltage waveform is in a sine wave form, periodically changes from a positive maximum value to a negative maximum value, and is called a zero-crossing point each time the waveform passes through the zero voltage point; the zero crossing point can be utilized to synchronously control devices (comprising a silicon controlled rectifier), so that the flow of current is controlled more accurately, key time sequence information is provided, and the microcontroller 1 can conveniently control power output synchronously; the microcontroller 1 is used for receiving zero-crossing point information or communication signals from the communication module 6 and generating control signals; the opto-isolator 3 is used to provide electrical isolation between the microcontroller 1 and the trigger circuit 5, protecting the microcontroller 1 from high voltages; the trigger circuit 5 is used for receiving the signal from the optical isolator 3 and triggering the silicon controlled rectifier 2 according to the signal; the thyristor 2 is used for controlling the current flowing through the heating coil, thereby adjusting the heating power of the induction cooker.
Specifically, the silicon controlled rectifier 2 is a semiconductor device, the silicon controlled rectifier 2 includes three electrodes, the three electrodes include a gate electrode and two main electrodes, the gate electrode is used for controlling the on or off of the silicon controlled rectifier 2, and the two main electrodes are respectively connected to a power supply and a heating coil; further, when the gate receives a sufficient current signal, the thyristor 2 is triggered and starts to conduct, allowing current to flow between the two main electrodes, so that a load (including a heating coil) connected to the main electrodes is energized and heated; when the gate signal disappears and the current flowing through the silicon controlled rectifier 2 drops to a value lower than the holding current, the silicon controlled rectifier 2 is turned off to cut off the current flow; in a feasible embodiment of the present utility model, the effect of the silicon controlled rectifier 2 is to adjust the current flowing to the heating coil, thereby controlling the heating intensity, and by adjusting the signal applied to the gate electrode, the heating power can be finely adjusted, so as to realize different cooking modes from rapid heating to heat preservation, etc.; the signals of the power adjustment are controlled by a microcontroller, so that the electromagnetic oven is more flexible and accurate to use.
Specifically, the optical isolator 3 comprises a light emitting diode, an isolation medium and a photoelectric detector, wherein the light emitting diode is arranged at the input end of the optical isolator 3, and the isolation medium is positioned between the light emitting diode and the photoelectric detector; further, when the input terminal (light emitting diode terminal) receives the electrical signal, the LED is activated to emit light, the light propagates through the isolation medium and is captured by the photodetector, and the photodetector then converts the optical signal back into an electrical signal and provides a corresponding electrical signal at the output terminal; in a possible embodiment of the utility model, an opto-isolator 3 is used to provide isolation between the microcontroller 1 and the power control circuitry (including the trigger circuit 5), protecting the microcontroller 1 from high voltages or other electrical disturbances, while allowing for safe transmission of control signals.
Referring to fig. 2, the zero-crossing detection circuit 4 includes a transformer, a rectifier, a filter capacitor, a comparator and an output signal regulator, where the transformer is disposed at an input end of the zero-crossing detection circuit 4 and connected with an output end of the rectifier, the output end of the rectifier is connected with an input end of the filter capacitor, an output end of the filter capacitor is connected with an input end of the comparator, and an output end of the comparator is connected with an input end of the output signal regulator; specifically, the transformer is used for reducing the high-voltage power supply to a safer level and providing a certain degree of electrical isolation; the rectifier receives the step-down alternating current power supply from the transformer, converts the alternating current power supply into direct current power supply, and further, the rectifier is a rectifier diode bridge and is used for converting the alternating current power supply into direct current power supply; the filter capacitor receives the direct current power supply from the rectifier, smoothes the rectified direct current power supply, and reduces noise and fluctuation; the comparator receives the filtered direct current power supply; comparing the voltage with a set reference voltage (including 0 volts) for detecting zero crossing points; an output signal regulator receives the output of the comparator and regulates the output signal to ensure that it meets the input requirements of the microcontroller 1; when the alternating current power supply voltage passes through the zero point, the voltage change is detected by the comparator and a corresponding output signal is generated after the alternating current power supply voltage is processed by the transformer, the rectifier and the filter capacitor; the output signal is further processed by an output signal regulator circuit and then used to synchronize other control circuits (including the trigger circuits of the thyristors); in a possible embodiment of the utility model, the zero-crossing detection circuit is used to precisely control the power supply to the heating element, thereby improving energy efficiency and reducing electrical noise. By switching at the zero crossing point of the power supply, the power control can be optimized, and the overall performance and reliability of the device can be improved.
Specifically, the triggering circuit 5 includes a transistor and a resistor, where the transistor is used to amplify the output signal of the microcontroller 1 to a level capable of triggering the thyristor 2; the resistor is used for limiting the current flowing to the gate electrode of the silicon controlled rectifier 2 and protecting the silicon controlled rectifier 2 from being damaged by high current; further, the transistor is used to amplify the output signal from the microcontroller 1, and the amplified signal is strong enough to trigger the thyristor 2 to be turned on, and the transistor includes a bipolar transistor (BJT) or a Metal Oxide Semiconductor Field Effect Transistor (MOSFET), which is not limited herein; the resistor is used for limiting the current flowing to the gate electrode of the controllable silicon, protecting the controllable silicon from being damaged by excessive current, particularly ensuring the stability and reliability of a trigger circuit at the trigger time.
Specifically, the specific model of the microcontroller 1 is ATmega328P.
Specifically, the specific model of the silicon controlled rectifier 2 is BTA16.
The working principle of the utility model is as follows: the microcontroller receives the communication signal from the communication module, detects the zero crossing point of the power supply through the zero crossing detection circuit, transmits the zero crossing point information to the microcontroller, generates a control signal, and controls the trigger circuit to trigger the silicon controlled rectifier; the controllable silicon controls the current flowing through the heating coil, adjusts the heating power of the induction cooker, realizes the accurate control of the heating power of the induction cooker, and simultaneously provides isolation between the microcontroller and the trigger circuit by arranging the optical isolator, thereby protecting the microcontroller from the influence of high voltage or other electrical interference and simultaneously allowing the safe transmission of control signals.
Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.
Claims (8)
1. The utility model provides an electromagnetism stove with energy-conserving mode, includes microcontroller (1), silicon controlled rectifier (2), opto-isolator (3), zero crossing detection circuit (4), trigger circuit (5) and communication module (6), its characterized in that: the input of zero crossing detection circuit (4) is connected with the power, the output of zero crossing detection circuit (4) is connected with the input of microcontroller (1), the output of microcontroller (1) is connected to the input of opto-isolator (3), the output of opto-isolator (3) is connected with the input of trigger circuit (5), the output of trigger circuit (5) is connected with the gate of silicon controlled rectifier (2), the main electrode of silicon controlled rectifier (2) is connected with power and heating coil respectively, communication module (6) are connected to microcontroller (1).
2. An induction cooker with energy saving mode according to claim 1, characterized in that: the controllable silicon (2) is a semiconductor device, the controllable silicon (2) comprises three electrodes, the three electrodes comprise a gate electrode and two main electrodes, the gate electrode is used for controlling the on or off of the controllable silicon (2), and the two main electrodes are respectively connected to a power supply and a heating coil.
3. An induction cooker with energy saving mode according to claim 1, characterized in that: the optical isolator (3) comprises a light emitting diode, an isolation medium and a photoelectric detector, wherein the light emitting diode is arranged at the input end of the optical isolator (3), and the isolation medium is positioned between the light emitting diode and the photoelectric detector.
4. An induction cooker with energy saving mode according to claim 1, characterized in that: the zero-crossing detection circuit (4) comprises a transformer, a rectifier, a filter capacitor, a comparator and an output signal regulator, wherein the transformer is arranged at the input end of the zero-crossing detection circuit (4), the output end of the transformer is connected with the input end of the rectifier, the output end of the rectifier is connected with the input end of the filter capacitor, the output end of the filter capacitor is connected with the input end of the comparator, and the output end of the comparator is connected with the input end of the output signal regulator.
5. An induction cooker with energy saving mode according to claim 1, characterized in that: the trigger circuit (5) comprises a transistor and a resistor, wherein the transistor is used for amplifying an output signal of the microcontroller (1) to a level capable of triggering the silicon controlled rectifier (2); the resistor is used for limiting the current flowing to the gate electrode of the controllable silicon (2) and protecting the controllable silicon (2) from being damaged by high current.
6. An induction cooker with energy saving mode according to claim 1, characterized in that: a specific model of the microcontroller (1) is ATmega328P.
7. An induction cooker with energy saving mode according to claim 1, characterized in that: the specific model of the silicon controlled rectifier (2) is BTA16.
8. An induction cooker with energy saving mode according to claim 4, characterized in that: the rectifier is a rectifier diode bridge and is used for converting an alternating current power supply into a direct current power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420477433.5U CN221055072U (en) | 2024-03-13 | 2024-03-13 | Electromagnetic oven with energy-saving mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420477433.5U CN221055072U (en) | 2024-03-13 | 2024-03-13 | Electromagnetic oven with energy-saving mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221055072U true CN221055072U (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420477433.5U Active CN221055072U (en) | 2024-03-13 | 2024-03-13 | Electromagnetic oven with energy-saving mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221055072U (en) |
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2024
- 2024-03-13 CN CN202420477433.5U patent/CN221055072U/en active Active
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