CN204259199U - Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven - Google Patents
Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven Download PDFInfo
- Publication number
- CN204259199U CN204259199U CN201420805531.3U CN201420805531U CN204259199U CN 204259199 U CN204259199 U CN 204259199U CN 201420805531 U CN201420805531 U CN 201420805531U CN 204259199 U CN204259199 U CN 204259199U
- Authority
- CN
- China
- Prior art keywords
- control circuit
- electromagnetic
- electromagnetic heating
- module
- heating control
- 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
Landscapes
- Electric Stoves And Ranges (AREA)
Abstract
The utility model provides a kind of Electromagnetic Heating control circuit, a kind of electromagnetic heater and a kind of electromagnetic oven, and wherein, Electromagnetic Heating control circuit, comprising: power switch drive module, comprises the power switch and microprocessor that are connected in series; And comparison module, be connected to described power switch drive module, described comparison module comprises: reference power source module; Comparator, the negative pole of described comparator is connected to the collector electrode of described power switch, and the positive pole of described comparator is connected to described reference power source module, and the output of described comparator is connected to described microprocessor.Pass through technical solutions of the utility model, determine the passing zero trigger time of different electromagnetic heater, and then determine different electromagnetic heating device operating time when arbitrary power heating, achieve the Intelligent heating process of electromagnetic heating device, significantly reduce the power consumption penalty of Electromagnetic Heating process.
Description
Technical field
The utility model relates to electromagnetic heating technique field, in particular to a kind of Electromagnetic Heating control circuit, a kind of electromagnetic heater and a kind of electromagnetic oven.
Background technology
In the related, existing electromagnetic oven IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) drive scheme be all be solidificated in the program of controller, by sentencing a pot type for program determination pan, the drive scheme in program is found to heat to control electromagnetic oven when opening electromagnetic oven and carrying out work by tabling look-up.The pan do not changed for conventional and parameter usually can operating time under its corresponding power of reasonable coupling, but there is relatively large deviation for the material parameters of the pan seldom used and the material parameters of general pan, the then difficult drive scheme by tabling look-up in acquisition program, cause pan can not be well compatible, cause power output deviation relatively large, product reliability is poor.
Therefore, how to determine that different pan becomes technical problem urgently to be resolved hurrily the heating time under arbitrary heating power.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, an object of the present utility model is the Electromagnetic Heating control circuit proposing the heating time of the different pans of a kind of new determination under arbitrary heating power.
Another object of the present utility model is to propose a kind of electromagnetic heater.
Another object of the present utility model is to propose a kind of electromagnetic oven.
For achieving the above object, according to the embodiment of first aspect of the present utility model, propose a kind of Electromagnetic Heating control circuit, comprising: power switch drive module, comprise the power switch and microprocessor that are connected in series; And comparison module, be connected to described power switch drive module, described comparison module comprises: reference power source module; Comparator, the negative pole of described comparator is connected to the collector electrode of described power switch, and the positive pole of described comparator is connected to described reference power source module, and the output of described comparator is connected to described microprocessor.
According to the Electromagnetic Heating control circuit of embodiment of the present utility model, by comparison module is connected to power switch drive module, can passing zero trigger time of Obtaining Accurate power switch, microprocessor determines the heating time of different pan according to the passing zero trigger time, achieve the Intelligent heating process of electromagnetic heating device, significantly reduce the power consumption penalty of Electromagnetic Heating process.
Particularly, after electromagnetic heater is according to default work heating time, resonant circuit is in self-resonance state, the electromotive force (V between the collector and emitter of power switch
cE) reduce gradually, at (V
cE) when being reduced to the advanced conducting voltage being less than power switch, power switch enters passing zero trigger state, and the passing zero trigger Time dependent energy intensity of resonant circuit, and the capacitance in resonant circuit is subject to the impact of pan attribute, also the one-to-one relationship of passing zero trigger time and pan attribute is namely established, by the comparator of comparison module in real time to (V
cE) with the reference potential (V of reference voltage module
base) compare (real-time or timing), microprocessor obtains the triggering signal of comparator in moment passing zero trigger time, the passing zero trigger time in self-resonance process can be determined thus in time, microprocessor determines pan attribute according to the passing zero trigger time, and then determines the operating time that above-mentioned pan is corresponding when arbitrary power heating.
In addition, when microprocessor does not obtain the triggering signal of comparator all the time, extend and preset heating time, then again judge the passing zero trigger time.
It is worthy of note, can also technique scheme be passed through, judge in time pan whether in electromagnetic heater, and then the operating state of control electromagnetic heater, avoid danger such as by mistake heating the electrical fire that causes.
In addition, according to the Electromagnetic Heating control circuit of the utility model above-described embodiment, following additional technical characteristic can also be had:
According to an embodiment of the present utility model, described reference power source module, comprising: direct-flow voltage regulation source; Adjustable resistance, one end of described adjustable resistance is connected to described direct-flow voltage regulation source, the other end ground connection of described adjustable resistance, and the positive pole of described comparator is connected to the adjustment end of described adjustable resistance.
According to the Electromagnetic Heating control circuit of embodiment of the present utility model, by arranging adjustable resistance in referrer module, reference potential (V can be adjusted easily
base), and easily comparator is calibrated, and then ensure the accuracy of passing zero trigger time test process.
According to an embodiment of the present utility model, also comprise: resonance modules, comprise the resonant capacitance and resonant inductance that are connected in parallel, one end of described resonant inductance is connected to the collector electrode of described power switch.
According to the Electromagnetic Heating control circuit of embodiment of the present utility model, by one end of resonant inductance being connected to the collector electrode of power switch, achieve the corresponding relation of resonant circuit and passing zero trigger time, wherein, the parameter of resonant circuit mainly comprises resonance coil parameter, resonant capacitance (comprising: pan property parameters and pan location parameter etc.) and dish spacing parameter etc.
According to an embodiment of the present utility model, also comprise: filtration module, comprise the filter capacitor and filter inductance that are connected in series, the common port of described filter capacitor and described filter inductance is connected to the other end of described resonant inductance, the other end ground connection of described filter capacitor.
According to an embodiment of the present utility model, described filtration module, also comprises: rectifier bridge module, and the positive output end of described rectifier bridge module is connected to the other end of described filter inductance, the negative output terminal ground connection of described rectifier bridge module.
According to an embodiment of the present utility model, also comprise: supply module, comprise the voltage regulation resistance and electric capacity of voltage regulation that are connected in parallel to described filtration module.
According to an embodiment of the present utility model, described switch drive module, also comprises: voltage stabilizing didoe and voltage regulation resistance, between the base stage being connected in parallel to described power switch and ground wire.
According to an embodiment of the present utility model, described voltage stabilizing didoe and described voltage regulation resistance are connected in parallel between described microprocessor and described ground wire.
According to an embodiment of the present utility model, described microprocessor, comprising: thermostat, is connected to the base stage of described power switch, for controlling the operating state of described power switch.
According to the embodiment of the utility model second aspect, also proposed a kind of electromagnetic heater, comprising: the Electromagnetic Heating control circuit as described in above-mentioned any one technical scheme.
According to embodiment of the present utility model, electromagnetic heater comprises: electromagnetic oven, electric cooker, electric pressure cooker, electric chafing dish and electric baking pan etc.
According to the embodiment of the utility model third aspect, also proposed a kind of electromagnetic oven, comprising: the Electromagnetic Heating control circuit as described in above-mentioned any one technical scheme.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the structural representation of the Electromagnetic Heating control circuit according to an embodiment of the present utility model;
Fig. 2 shows the structural representation of the Electromagnetic Heating control circuit according to another embodiment of the present utility model;
Fig. 3 shows the test schematic diagram without the passing zero trigger moment of the Electromagnetic Heating control circuit according to embodiment of the present utility model;
Fig. 4 shows the test schematic diagram in the passing zero trigger moment of the Electromagnetic Heating control circuit according to embodiment of the present utility model;
Fig. 5 shows the schematic block diagram of the electromagnetic heater according to embodiment of the present utility model;
Fig. 6 shows the schematic block diagram of the electromagnetic oven according to embodiment of the present utility model.
Embodiment
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection range of the present utility model is not by the restriction of following public specific embodiment.
Below in conjunction with Fig. 1 to Fig. 4, the course of work of the Electromagnetic Heating control circuit according to embodiment of the present utility model is specifically described.
As shown in Figure 1 to Figure 2, according to the Electromagnetic Heating control circuit 100 of embodiment of the present utility model, comprising: power switch drive module 4, comprise the power switch 41 and microprocessor 42 that are connected in series; And comparison module 5, be connected to described power switch drive module 4, described comparison module 5 comprises: reference power source module; Comparator 51, the negative pole of described comparator 51 is connected to the collector electrode of described power switch 41, and the positive pole of described comparator 51 is connected to described reference power source module, and the output of described comparator 51 is connected to described microprocessor 42.
According to the Electromagnetic Heating control circuit 100 of embodiment of the present utility model, by comparison module 5 is connected to power switch drive module 4, can the passing zero trigger time T2 of Obtaining Accurate power switch 41, microprocessor 42 determines the heating time of different pan according to passing zero trigger time T2, achieve the Intelligent heating process of electromagnetic heating device, significantly reduce the power consumption penalty of Electromagnetic Heating process.
Particularly, after electromagnetic heater is according to default T1 work heating time, resonant circuit is in self-resonance state, the electromotive force (V between the collector and emitter of power switch 41
cE) reduce gradually, at (V
cE) when being reduced to the advanced conducting voltage being less than power switch 41, power switch 41 enters passing zero trigger state, and passing zero trigger time T2 determines the energy intensity of resonant circuit, and the capacitance in resonant circuit is subject to the impact of pan attribute, also the one-to-one relationship of passing zero trigger time T2 and pan attribute is namely established, real-time to (V by the comparator 51 of comparison module 5
cE) with the reference potential (V of reference voltage module
base) compare (real-time or timing), microprocessor 42 obtains the triggering signal of comparator 51 in T2 moment passing zero trigger time, the passing zero trigger time T2 in self-resonance process can be determined thus in time, microprocessor 42 determines pan attribute according to passing zero trigger time T2, and then determines the operating time that above-mentioned pan is corresponding when arbitrary power heating.
In addition, when microprocessor 42 does not obtain the triggering signal of comparator 51 all the time (as shown in Figure 3), extend and preset T1 heating time, then again judged whether passing zero trigger time T2 (as shown in Figure 4).
It is worthy of note, can also technique scheme be passed through, judge in time pan whether in electromagnetic heater, and then the operating state of control electromagnetic heater, avoid danger such as by mistake heating the electrical fire that causes.
In addition, according to the Electromagnetic Heating control circuit 100 of the utility model above-described embodiment, following additional technical characteristic can also be had:
According to an embodiment of the present utility model, described reference power source module, comprising: direct-flow voltage regulation source; Adjustable resistance 52, one end of described adjustable resistance 52 is connected to described direct-flow voltage regulation source, the other end ground connection of described adjustable resistance 52, and the positive pole of described comparator 51 is connected to the adjustment end of described adjustable resistance 52.
According to the Electromagnetic Heating control circuit 100 of embodiment of the present utility model, by arranging adjustable resistance 52 in referrer module, reference potential (V can be adjusted easily
base), and easily comparator 51 is calibrated, and then ensure the accuracy of passing zero trigger time T2 test process.
According to an embodiment of the present utility model, also comprise: resonance modules 3, comprise the resonant capacitance 32 and resonant inductance 31 that are connected in parallel, one end of described resonant inductance 31 is connected to the collector electrode of described power switch 41.
According to the Electromagnetic Heating control circuit 100 of embodiment of the present utility model, by one end of resonant inductance 31 being connected to the collector electrode of power switch 41, achieve the corresponding relation of resonant circuit and passing zero trigger time T2, wherein, the parameter of resonant circuit mainly comprises resonance coil parameter, resonant capacitance 32 (comprising: pan property parameters and pan location parameter etc.) and dish spacing parameter etc.
According to an embodiment of the present utility model, also comprise: filtration module 2, comprise the filter capacitor 21 and filter inductance 22 that are connected in series, the common port of described filter capacitor 21 and described filter inductance 22 is connected to the other end of described resonant inductance 31, the other end ground connection of described filter capacitor 21.
According to an embodiment of the present utility model, described filtration module 2, also comprises: rectifier bridge module, and the positive output end of described rectifier bridge module is connected to the other end of described filter inductance 22, the negative output terminal ground connection of described rectifier bridge module.
According to an embodiment of the present utility model, also comprise: supply module 1, comprise the voltage regulation resistance 11 and electric capacity of voltage regulation 12 that are connected in parallel to described filtration module 2.
According to an embodiment of the present utility model, described switch drive module, also comprises: voltage stabilizing didoe 43 and voltage regulation resistance 11, between the base stage being connected in parallel to described power switch 41 and ground wire.
According to an embodiment of the present utility model, described voltage stabilizing didoe 43 and described voltage regulation resistance 11 are connected in parallel between described microprocessor 42 and described ground wire.
According to an embodiment of the present utility model, described microprocessor 42, comprising: thermostat, is connected to the base stage of described power switch 41, for controlling the operating state of described power switch 41.
Fig. 5 shows the schematic block diagram of the electromagnetic heater according to embodiment of the present utility model.
As shown in Figure 5, according to the electromagnetic heater 500 of embodiment of the present utility model, comprising: the Electromagnetic Heating control circuit 100 as described in above-mentioned any one technical scheme.
Fig. 6 shows the schematic block diagram of the electromagnetic oven according to embodiment of the present utility model.
As shown in Figure 6, according to the electromagnetic oven 600 of embodiment of the present utility model, comprising: the Electromagnetic Heating control circuit 100 as described in above-mentioned any one technical scheme.
Be worth it is emphasized that electromagnetic heater comprises electromagnetic oven, electric cooker, electric pressure cooker, electric chafing dish and electric baking pan etc. according to an embodiment of the invention.
More than be described with reference to the accompanying drawings the technical solution of the utility model, consider the technical problem how determining the heating time of different pan under arbitrary heating power proposed in correlation technique, the utility model proposes a kind of Electromagnetic Heating control circuit, a kind of electromagnetic heater and a kind of electromagnetic oven, by comparison module is connected to power switch drive module, can passing zero trigger time of Obtaining Accurate power switch, microprocessor determines the heating time of different pan according to the passing zero trigger time, achieve the Intelligent heating process of electromagnetic heating device, significantly reduce the power consumption penalty of Electromagnetic Heating process.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (11)
1. an Electromagnetic Heating control circuit, is characterized in that, comprising:
Power switch drive module, comprises the power switch and microprocessor that are connected in series; And comparison module, be connected to described power switch drive module, described comparison module comprises:
Reference power source module;
Comparator, the negative pole of described comparator is connected to the collector electrode of described power switch, and the positive pole of described comparator is connected to described reference power source module, and the output of described comparator is connected to described microprocessor.
2. Electromagnetic Heating control circuit according to claim 1, is characterized in that, described reference power source module, comprising:
Direct-flow voltage regulation source;
Adjustable resistance, one end of described adjustable resistance is connected to described direct-flow voltage regulation source, the other end ground connection of described adjustable resistance, and the positive pole of described comparator is connected to the adjustment end of described adjustable resistance.
3. Electromagnetic Heating control circuit according to claim 2, is characterized in that, also comprise:
Resonance modules, comprises the resonant capacitance and resonant inductance that are connected in parallel, and one end of described resonant inductance is connected to the collector electrode of described power switch.
4. Electromagnetic Heating control circuit according to claim 3, is characterized in that, also comprise:
Filtration module, comprises the filter capacitor and filter inductance that are connected in series, and the common port of described filter capacitor and described filter inductance is connected to the other end of described resonant inductance, the other end ground connection of described filter capacitor.
5. Electromagnetic Heating control circuit according to claim 4, is characterized in that, described filtration module, also comprises:
Rectifier bridge module, the positive output end of described rectifier bridge module is connected to the other end of described filter inductance, the negative output terminal ground connection of described rectifier bridge module.
6. Electromagnetic Heating control circuit according to claim 4, is characterized in that, also comprise:
Supply module, comprises the voltage regulation resistance and electric capacity of voltage regulation that are connected in parallel to described filtration module.
7. Electromagnetic Heating control circuit according to any one of claim 1 to 6, is characterized in that, described switch drive module, also comprises:
Voltage stabilizing didoe and voltage regulation resistance, between the base stage being connected in parallel to described power switch and ground wire.
8. Electromagnetic Heating control circuit according to claim 7, is characterized in that, described voltage stabilizing didoe and described voltage regulation resistance are connected in parallel between described microprocessor and described ground wire.
9. Electromagnetic Heating control circuit according to any one of claim 1 to 6, is characterized in that, described microprocessor, comprising:
Thermostat, is connected to the base stage of described power switch, for controlling the operating state of described power switch.
10. an electromagnetic heater, is characterized in that, comprising: Electromagnetic Heating control circuit as claimed in any one of claims 1-9 wherein.
11. 1 kinds of electromagnetic ovens, is characterized in that, comprising: Electromagnetic Heating control circuit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805531.3U CN204259199U (en) | 2014-12-16 | 2014-12-16 | Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805531.3U CN204259199U (en) | 2014-12-16 | 2014-12-16 | Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204259199U true CN204259199U (en) | 2015-04-08 |
Family
ID=52963458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805531.3U Active CN204259199U (en) | 2014-12-16 | 2014-12-16 | Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204259199U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358328A (en) * | 2016-10-18 | 2017-01-25 | 华南理工大学 | Soft switch detection and temperature control method of induction cooker |
| CN106413161A (en) * | 2015-08-03 | 2017-02-15 | 佛山市顺德区美的电热电器制造有限公司 | IGBT driving method of electromagnetic heating apparatus and electromagnetic heating apparatus |
| CN106402955A (en) * | 2015-08-03 | 2017-02-15 | 佛山市顺德区美的电热电器制造有限公司 | Pan judgment method of electromagnetic cooking device and electromagnetic cooking device |
| CN106658794A (en) * | 2015-08-03 | 2017-05-10 | 佛山市顺德区美的电热电器制造有限公司 | Heating control method of electromagnetic heating device and electromagnetic heating device |
| CN106714351A (en) * | 2015-08-03 | 2017-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Zero crossing conduction time determination method and determination system and electromagnetic heating device |
-
2014
- 2014-12-16 CN CN201420805531.3U patent/CN204259199U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413161A (en) * | 2015-08-03 | 2017-02-15 | 佛山市顺德区美的电热电器制造有限公司 | IGBT driving method of electromagnetic heating apparatus and electromagnetic heating apparatus |
| CN106402955A (en) * | 2015-08-03 | 2017-02-15 | 佛山市顺德区美的电热电器制造有限公司 | Pan judgment method of electromagnetic cooking device and electromagnetic cooking device |
| CN106658794A (en) * | 2015-08-03 | 2017-05-10 | 佛山市顺德区美的电热电器制造有限公司 | Heating control method of electromagnetic heating device and electromagnetic heating device |
| CN106714351A (en) * | 2015-08-03 | 2017-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Zero crossing conduction time determination method and determination system and electromagnetic heating device |
| CN106658794B (en) * | 2015-08-03 | 2019-09-27 | 佛山市顺德区美的电热电器制造有限公司 | The method for heating and controlling and electromagnetic heater of electromagnetic heater |
| CN106413161B (en) * | 2015-08-03 | 2019-10-15 | 佛山市顺德区美的电热电器制造有限公司 | The IGBT driving method and electromagnetic heater of electromagnetic heater |
| CN106358328A (en) * | 2016-10-18 | 2017-01-25 | 华南理工大学 | Soft switch detection and temperature control method of induction cooker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204259199U (en) | Electromagnetic Heating control circuit, electromagnetic heater and electromagnetic oven | |
| CN202661906U (en) | Accurate temperature control circuit of thermos | |
| US20180020507A1 (en) | Electromagnetic heating control circuit and electromagnetic heating device | |
| CN107013955A (en) | Electric cooking pot and its control method | |
| CN202960154U (en) | Power controller of heater of water dispenser | |
| CN102361524A (en) | Method for increasing power of electromagnetic oven and circuit thereof | |
| CN102781130B (en) | Large-power electromagnetic cooker circuit based on power electronic technology | |
| CN106287863A (en) | Electromagnetic heater and control method thereof and control circuit | |
| CN105307293B (en) | The electric rice cooker heated circuit of 220V AC voltage power supply | |
| CN104345749A (en) | Automatic adjusting control circuit of constant temperature cabinet | |
| CN203870427U (en) | Low-electricity consumption control circuit in standby state | |
| CN203858525U (en) | Heating circuit for electric blanket | |
| CN203207828U (en) | Temperature adjustable electric cooker | |
| CN112839398B (en) | Electromagnetic heating device and dry burning detection method thereof | |
| CN203086769U (en) | Commercial induction cooker | |
| CN204856250U (en) | Simple and easy temperature -control circuit | |
| CN105323875B (en) | The electric rice cooker heated circuit of 12V~24V DC-voltage supplies | |
| CN206674225U (en) | The circuit system and cooking apparatus of protection circuit | |
| CN204014133U (en) | A kind of electromagnetic heating circuit | |
| CN209088589U (en) | Charging high-temperature protection circuit and cooker | |
| CN203015157U (en) | High-power induction cooker circuit based on power electronics | |
| CN206576751U (en) | Accurate temperature controlling intelligent electric kettle | |
| CN202283196U (en) | Kettle with temperature and water level detection two-in-one system | |
| CN105680253A (en) | Universal-type electric cooker long-time delay power socket | |
| CN209488847U (en) | Over-temperature protection circuit and induction cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |