CN104676672B - Vehicle-carried microwave stove - Google Patents
Vehicle-carried microwave stove Download PDFInfo
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- CN104676672B CN104676672B CN201410295074.2A CN201410295074A CN104676672B CN 104676672 B CN104676672 B CN 104676672B CN 201410295074 A CN201410295074 A CN 201410295074A CN 104676672 B CN104676672 B CN 104676672B
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- alternating current
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/664—Aspects related to the power supply of the microwave heating apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
- H02J9/063—Common neutral, e.g. AC input neutral line connected to AC output neutral line and DC middle point
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of vehicle-carried microwave stove, comprising: cavity；Produce microwave and be fed into the magnetron in cavity；Electric supply installation, electric supply installation includes: DC booster, and the unidirectional current of the first voltage is converted to the unidirectional current of the second voltage by DC booster；Single-pole double throw controls switch；Alternating current-direct current converter, alternating current-direct current converter controls switch by single-pole double throw and is respectively connected with DC booster and alternating current power supply, the unidirectional current of the second voltage is converted to the unidirectional current of tertiary voltage to supply magnetron by alternating current-direct current converter, or converts the alternating current that alternating current power supply exports the unidirectional current of tertiary voltage to supply magnetron；Control device, control device and be connected with single-pole double throw control switch, control device and control to switch to select DC booster or alternating current power supply to be connected to alternating current-direct current converter by controlling single-pole double throw.This vehicle-carried microwave stove can be achieved with Vehicular direct-current without inverter and powers, and reduces cost, and reduces volume and weight, it is simple to carries.
Description
Technical field
The present invention relates to microwave oven technical field, particularly to a kind of vehicle-carried microwave stove.
Background technology
In correlation technique, automobile be vehicle-carried microwave stove power time, be by after the alternating current that 12V or 24V DC inverter is 220V on automobile, resupply vehicle-carried microwave stove.
But, by the mode of DC inversion be vehicle-carried microwave stove power time, it is necessary to increasing inverter in power supply circuits, not only result in power supply circuits complexity, reliability reduces, and also results in the volume of vehicle-carried microwave stove, weight becomes big, not portable.
Summary of the invention
The purpose of the present invention is intended to solve at least to a certain extent above-mentioned technological deficiency.
For this, it is an object of the invention to propose a kind of not use DC inversion technology to can be achieved with the vehicle-carried microwave stove powered by Alternating Current Power Supply or Vehicular direct-current, this vehicle-carried microwave stove highly versatile.
For reaching above-mentioned purpose, a kind of vehicle-carried microwave stove that the embodiment of the present invention proposes, including: cavity；Produce microwave and described microwave is fed into the magnetron of described cavity；Electric supply installation, described electric supply installation includes: DC booster, and the unidirectional current of the first voltage is converted to the unidirectional current of the second voltage by described DC booster, and wherein, described second voltage is more than described first voltage；Single-pole double throw controls switch；Alternating current-direct current converter, described alternating current-direct current converter controls switch by described single-pole double throw and is respectively connected with described DC booster and alternating current power supply, described alternating current-direct current converter converts the unidirectional current of described second voltage the unidirectional current of tertiary voltage to supply described magnetron, or the alternating current that described alternating current power supply exports is converted the unidirectional current of described tertiary voltage to supply in described magnetron, wherein, described tertiary voltage is more than described second voltage；Controlling device, described control device controls switch with described single-pole double throw and is connected, and described control device controls switch to select described DC booster or described alternating current power supply to be connected to described alternating current-direct current converter by controlling described single-pole double throw.
Vehicle-carried microwave stove according to embodiments of the present invention, it is not necessary to inverter can be achieved with Vehicular direct-current and powers, reduces cost, and greatly reduces volume and weight, it is simple to carry.Further, it is also possible to pass through Alternating Current Power Supply, it is possible to family uses, highly versatile.
According to one embodiment of present invention, described vehicle-carried microwave stove also includes: detection is input to the power detector of the power supply type of described electric supply installation, described power detector is connected with described control device, wherein, described single-pole double throw control switch is controlled by described control device according to the power supply type being input to described electric supply installation.
According to one embodiment of present invention, described DC booster includes the first power interface for being connected to car cigarette lighter and is connected to the power supply output interface of described alternating current-direct current converter, and described power supply output interface is building block system interface.
According to one embodiment of present invention, described vehicle-carried microwave stove also includes battery module, and described DC booster also includes second source interface, and described second source interface is used for being connected to described battery module.
Wherein, described DC booster also includes: limit switch, one end ground connection of described limit switch；Micro-control unit, described micro-control unit is connected with the other end of described limit switch, and described micro-control unit judges to access the DC source type of described DC booster by detecting the switching signal of described limit switch.
According to one embodiment of present invention, described vehicle-carried microwave stove also includes the 3rd power interface for being connected to described alternating current power supply.
According to one embodiment of present invention, described power detector includes: detecting the zero cross detection circuit of the zero cross signal of described 3rd power interface, described zero cross detection circuit is connected with described control device；Gate-controlled switch, one end of described gate-controlled switch is connected with described DC booster, and the control end of described gate-controlled switch is connected with described control device；Comparator, the first input end of described comparator is connected with the other end of described gate-controlled switch, and the outfan of described comparator is connected with described control device；Stabilivolt, the anode of described stabilivolt is connected with described control device, and the negative electrode of described stabilivolt is connected with the second input of described comparator.
Wherein, when described zero cross detection circuit detects the zero cross signal of described 3rd power interface, described control device controls switch so that described alternating current power supply is connected to described alternating current-direct current converter by controlling described single-pole double throw；When described zero cross detection circuit is not detected by the zero cross signal of described 3rd power interface, described control device controls described gate-controlled switch Guan Bi, and described single-pole double throw is controlled switch and is controlled by the comparison signal exported according to described comparator.
According to one embodiment of present invention, when described single-pole double throw controls switch for single-pole double-throw relay, described vehicle-carried microwave stove also includes: power supply changeover device, described power supply changeover device is connected with described 3rd power interface and described DC booster respectively, and the unidirectional current of described power supply changeover device output the 4th voltage is to supply described single-pole double-throw relay.
According to one embodiment of present invention, described vehicle-carried microwave stove also includes chiller.
Aspect and advantage that the present invention adds will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will be apparent from easy to understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of vehicle-carried microwave stove according to embodiments of the present invention；
Fig. 2 is the block diagram of vehicle-carried microwave stove according to embodiments of the present invention；
Fig. 3 is the circuit diagram of vehicle-carried microwave stove according to an embodiment of the invention；
Fig. 4 is the schematic diagram of DC booster according to an embodiment of the invention；
Fig. 5 A is the block diagram of vehicle-carried microwave stove according to an embodiment of the invention；
Fig. 5 B is the schematic diagram of the DC booster according to one specific embodiment of the present invention；
Fig. 6 is the schematic diagram of vehicle-carried microwave stove according to an embodiment of the invention；And
Fig. 7 is the exploded perspective view of vehicle-carried microwave stove according to an embodiment of the invention.
Accompanying drawing labelling:
Cavity 10, magnetron 20, electric supply installation 30 and control device 40, power detector 50, the 3rd power interface 60, power supply changeover device 70, battery module 80, chiller 90, pcb board 100, upper cover 110, waveguide 120；
Electric supply installation 30: DC booster 301, single-pole double throw control switch 302 and alternating current-direct current converter 303；
Power detector 50: zero cross detection circuit 501, gate-controlled switch 502, comparator 503 and stabilivolt 504；
DC booster 301: the first power interface 3011, power supply output interface 3012, second source interface 3013, limit switch 3014, micro-control unit 3015, alteration switch 3016 and regulator control block 3017.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.In order to simplify disclosure of the invention, hereinafter parts and setting to specific examples are described.Certainly, they are only merely illustrative, and are not intended to the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging.Additionally, the example of the various specific technique that the invention provides and material, but those of ordinary skill in the art are it can be appreciated that the use of the property of can be applicable to of other techniques and/or other materials.Additionally, fisrt feature described below second feature it " on " structure can include the first and second features and be formed as the embodiment of directly contact, can also including other feature and form the embodiment between the first and second features, such first and second features are not likely to be direct contact.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, can be mechanically connected or electrical connection, can also be the connection of two element internals, it is possible to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
The vehicle-carried microwave stove proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of vehicle-carried microwave stove according to embodiments of the present invention, and Fig. 2 is the block diagram of vehicle-carried microwave stove according to embodiments of the present invention, and Fig. 3 is the circuit diagram of vehicle-carried microwave stove according to an embodiment of the invention.As shown in Figure 1, Figure 2 and Figure 3, this vehicle-carried microwave stove includes: cavity 10, magnetron 20, electric supply installation 30 and control device 40.
Wherein, magnetron 20 is used for producing microwave and being fed in cavity 10 by described microwave.As it is shown on figure 3, electric supply installation 30 includes: DC booster 301, single-pole double throw control switch 302 and alternating current-direct current converter 303.The unidirectional current of the first voltage such as 12V is converted to the unidirectional current of the second voltage such as 240V or 280V by DC booster 301, and wherein, the second voltage is more than the first voltage；Alternating current-direct current converter 303 controls switch 302 by single-pole double throw and is respectively connected with DC booster 301 and alternating current power supply such as AC220V electric main, alternating current-direct current converter 303 is for converting the unidirectional current of described second voltage the unidirectional current of tertiary voltage such as 4000V to supply magnetron 20, or the alternating current that described alternating current power supply exports is converted the unidirectional current of tertiary voltage such as 4000V to supply magnetron 20, wherein, described tertiary voltage is more than described second voltage.According to one embodiment of present invention, single-pole double throw controls switch 302 can be single-pole double-throw relay.
Therefore saying, in an embodiment of the present invention, the input of alternating current-direct current converter 303 can be AC220V, it is also possible to be DC240V or 280V.When the power supply being input to alternating current-direct current converter 303 is AC220V alternating current, alternating current-direct current converter 303 converts AC220V alternating current to DC4000V by rectifier boost, powers for magnetron 20, and magnetron 20 produces microwave and is fed in cavity 10；When being input to the unidirectional current that power supply is 12V of DC booster 301, DC booster 301 converts the unidirectional current of 12V to DC240V or 280V, it is then input to alternating current-direct current converter 303, alternating current-direct current converter 30 converts the unidirectional current of 240V or 280V to DC4000V by directly boosting, power for magnetron 20, magnetron 20 produces microwave and is fed in cavity 10, it is achieved that vehicle-mounted DC12V is the function that microwave oven is powered.Wherein, alternating current-direct current converter 303 also can reserve the input interface of DC240V or 280V, to be used for being directly accessed the DC source of 240V or 280V, DC booster 301 also can reserve the input interface of DC12V simultaneously, to be used for being directly accessed the DC source such as battery module of 12V, thus the dual-purpose of vehicle-carried microwave stove can be improved.
It is connected with single-pole double throw control switch 302 as it is shown on figure 3, control device 40 such as computer board, controls device 40 and control to switch 302 to select DC booster 301 or described alternating current power supply to be connected to alternating current-direct current converter 303 by controlling single-pole double throw.
According to one embodiment of present invention, as shown in Figure 3, above-mentioned vehicle-carried microwave stove also includes: detection is input to the power detector 50 of the power supply type (such as DC source or alternating current power supply) of electric supply installation 30, power detector 50 is connected with controlling device 40, wherein, control device 40 according to the power supply type being input to electric supply installation 30, single-pole double throw control switch 302 to be controlled.
Specifically, as it is shown on figure 3, above-mentioned vehicle-carried microwave stove also includes the 3rd power interface 60 for being connected to alternating current power supply such as AC220V electric main.Further, power detector 50 includes: zero cross detection circuit 501, gate-controlled switch 502, comparator 503 and stabilivolt 504.Wherein, zero cross detection circuit 501 is connected with controlling device 40, zero cross detection circuit 501 is for detecting the zero cross signal of the 3rd power interface 60, one end of gate-controlled switch 502 is connected with DC booster 301, the control end of gate-controlled switch 502 is connected with controlling device 40, the first input end of comparator 503 is connected with the other end of gate-controlled switch 502, the outfan of comparator 503 is connected with controlling device 40, the anode of stabilivolt 504 is connected with controlling device 40, and the negative electrode of stabilivolt 504 is connected with the second input of comparator 503.Wherein, control device 40 such as computer board, power detector 50 may be provided on pcb board 100.
In an embodiment of the present invention, when zero cross detection circuit 501 detects the zero cross signal of the 3rd power interface 60, control device 40 such as computer board by controlling single-pole double throw and control switch 302 so that alternating current power supply is connected to alternating current-direct current converter 303；When zero cross detection circuit 501 is not detected by the zero cross signal of the 3rd power interface 60, control device 40 such as computer board control gate-controlled switch 502 to close, if the DC booster 301 being connected with the first input end of comparator 503 exports 240V or 280V unidirectional current, comparator 503 exports comparison signal to controlling device 40, single-pole double throw is controlled switch 302 according to the comparison signal that comparator 503 exports and is controlled by control device 40, so that 240V or the 280V unidirectional current supply alternating current-direct current converter 503 of DC booster 301 output.
Wherein, as shown in Figure 3, when single-pole double throw control switch 302 is single-pole double-throw relay, above-mentioned vehicle-carried microwave stove also includes: power supply changeover device 70, power supply changeover device 70 is connected with the 3rd power interface 60 and DC booster 301 respectively, power supply changeover device 70 for being converted to the unidirectional current of the 4th voltage such as 12V by the 220V alternating current of alternating current power supply, or the unidirectional current of the second voltage exported by DC booster 301 is converted to the unidirectional current of the 4th voltage such as 12V, namely say, power supply changeover device 70 exports the unidirectional current of the 4th voltage such as 12V to supply single-pole double-throw relay.Power supply changeover device 70, single-pole double-throw relay all may be provided on pcb board 100.
According to one embodiment of present invention, as shown in Figure 4, DC booster 301 includes for being connected to the first power interface 3011 i.e. cigarette lighter power interface of car cigarette lighter and be connected to the power supply output interface 3012 of alternating current-direct current converter 303, and wherein power supply output interface 3012 is powered building block system interface for building block system interface and microwave oven.
Further, as shown in Fig. 3, Fig. 5 A and Fig. 6, above-mentioned vehicle-carried microwave stove also includes battery module 80, and battery module 80 for providing the unidirectional current of the first voltage such as 12V to DC boosting module 301.As shown in Figure 5 B, DC booster 301 also includes second source interface 3013 i.e. battery supply interface, and second source interface 3013 is used for being connected to battery module 80.
By increasing battery module 80, it is achieved be in or in driving, battery module 80 be charged, when needs vehicle-carried microwave furnaceman makees, battery module 80 can high power discharge, it is achieved the heating function of vehicle-carried microwave stove.Wherein, battery module 80 all can be charged by AC220V or DC12V, when using battery module 80, battery module 80 exports DC12V, by being connected to DC booster 301, powers for DC booster 301, DC12V is boosted and is input to alternating current-direct current converter 303 for after DC240V or 280V by DC booster 301, thering is provided input voltage for alternating current-direct current converter 303, it is that magnetron 20 is powered that DC240V or 280V is boosted to DC4000V by alternating current-direct current converter 303, and magnetron microwave is in cavity 10.Especially when the power ratio of car cigarette lighter is less, car cigarette lighter can be passed through battery module 80 is charged for a long time, during vehicle-carried microwave stove to be used, battery module 80 can high power discharge, it is to avoid car cigarette lighter power is too small and cannot meet the defect that the heating function of vehicle-carried microwave stove brings.
In an embodiment of the present invention, as it is shown on figure 3, DC booster 301 also includes: limit switch 3014 and MCU (MicroControlUnit, micro-control unit) 3015.Wherein, one end ground connection of limit switch 3014, micro-control unit 3015 is connected with the other end of limit switch 3014, and micro-control unit 3015 judges to access the DC source type of DC booster 301 by detecting the switching signal of limit switch 3014.
In an embodiment of the present invention, detected by zero cross detection circuit the power supply wave shape being input to vehicle-carried microwave stove whether have zero crossing to judge input power is alternating current power supply or DC source.Wherein, when input power is DC source be time, MCU judges the DC12V power supply of cigar lighter DC12V power supply or battery module by detecting the switching signal of limit switch, such as, detect when limit switch closes to be the input of cigar lighter DC12V power supply, detect when limit switch disconnects to be the input of battery module DC12V power supply.Further, DC booster 301 also includes alteration switch 3016 and regulator control block 3017, wherein, changes supply frequency by the break-make of alteration switch 3016, through regulator control block 3017 after boosting, finally obtains the unidirectional current of DC240V or 280V.
In an embodiment of the present invention, as it is shown in fig. 7, above-mentioned vehicle-carried microwave stove also includes chiller 90 such as cooling fan assembly, upper cover 110 and waveguide 120, wherein, chiller 90 such as cooling fan assembly is that whole microwave oven carries out heat radiation work.
Vehicle-carried microwave stove according to embodiments of the present invention, it is not necessary to inverter can be achieved with Vehicular direct-current and powers, reduces cost, and greatly reduces volume and weight, it is simple to carry.Further, it is also possible to pass through Alternating Current Power Supply, it is possible to family uses, highly versatile.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (10)
1. a vehicle-carried microwave stove, it is characterised in that including:
Cavity；
Produce microwave and described microwave is fed into the magnetron in described cavity；
Electric supply installation, described electric supply installation includes:
DC booster, the unidirectional current of the first voltage is converted to the unidirectional current of the second voltage by described DC booster, and wherein, described second voltage is more than described first voltage；
Single-pole double throw controls switch；
Alternating current-direct current converter, described alternating current-direct current converter controls switch by described single-pole double throw and is respectively connected with described DC booster and alternating current power supply, described alternating current-direct current converter converts the unidirectional current of described second voltage the unidirectional current of tertiary voltage to supply described magnetron, or the alternating current that described alternating current power supply exports is converted the unidirectional current of described tertiary voltage to supply described magnetron, wherein, described tertiary voltage is more than described second voltage；
Controlling device, described control device controls switch with described single-pole double throw and is connected, and described control device controls switch to select described DC booster or described alternating current power supply to be connected to described alternating current-direct current converter by controlling described single-pole double throw.
2. vehicle-carried microwave stove as claimed in claim 1, it is characterised in that also include:
Detection is input to the power detector of the power supply type of described electric supply installation, described power detector is connected with described control device, wherein, described single-pole double throw control switch is controlled by described control device according to the power supply type being input to described electric supply installation.
3. vehicle-carried microwave stove as claimed in claim 1, it is characterized in that, described DC booster includes the first power interface for being connected to car cigarette lighter and is connected to the power supply output interface of described alternating current-direct current converter, and described power supply output interface is building block system interface.
4. vehicle-carried microwave stove as claimed in claim 3, it is characterised in that also including battery module, described DC booster also includes second source interface, and described second source interface is used for being connected to described battery module.
5. vehicle-carried microwave stove as claimed in claim 4, it is characterised in that described DC booster also includes:
Limit switch, one end ground connection of described limit switch；
Micro-control unit, described micro-control unit is connected with the other end of described limit switch, and described micro-control unit judges to access the DC source type of described DC booster by detecting the switching signal of described limit switch.
6. vehicle-carried microwave stove as claimed in claim 2, it is characterised in that also include the 3rd power interface for being connected to described alternating current power supply.
7. vehicle-carried microwave stove as claimed in claim 6, it is characterised in that described power detector includes:
Detecting the zero cross detection circuit of the zero cross signal of described 3rd power interface, described zero cross detection circuit is connected with described control device；
Gate-controlled switch, one end of described gate-controlled switch is connected with described DC booster, and the control end of described gate-controlled switch is connected with described control device；
Comparator, the first input end of described comparator is connected with the other end of described gate-controlled switch, and the outfan of described comparator is connected with described control device；
Stabilivolt, the anode of described stabilivolt is connected with described control device, and the negative electrode of described stabilivolt is connected with the second input of described comparator.
8. vehicle-carried microwave stove as claimed in claim 7, it is characterised in that
When described zero cross detection circuit detects the zero cross signal of described 3rd power interface, described control device controls switch so that described alternating current power supply is connected to described alternating current-direct current converter by controlling described single-pole double throw；
When described zero cross detection circuit is not detected by the zero cross signal of described 3rd power interface, described control device controls described gate-controlled switch Guan Bi, and described single-pole double throw is controlled switch and is controlled by the comparison signal exported according to described comparator.
9. vehicle-carried microwave stove as claimed in claim 6, it is characterised in that when described single-pole double throw controls switch for single-pole double-throw relay, also include:
Power supply changeover device, described power supply changeover device is connected with described 3rd power interface and described DC booster respectively, and the unidirectional current of described power supply changeover device output the 4th voltage is to supply described single-pole double-throw relay.
10. vehicle-carried microwave stove as claimed in any one of claims 1-9 wherein, it is characterised in that also include chiller.
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| CN201410295074.2A CN104676672B (en) | 2014-06-25 | 2014-06-25 | Vehicle-carried microwave stove |
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| CN201410295074.2A CN104676672B (en) | 2014-06-25 | 2014-06-25 | Vehicle-carried microwave stove |
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| CN104676672B true CN104676672B (en) | 2016-07-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106658805A (en) * | 2016-10-28 | 2017-05-10 | 广东美的厨房电器制造有限公司 | On-board microwave oven and control method of on-board microwave |
| CN108488912A (en) * | 2018-03-28 | 2018-09-04 | 广州凌飞电子科技有限公司 | The dual-purpose air purifier of automobile household |
| CN111998408A (en) * | 2019-05-26 | 2020-11-27 | 许文辉 | Electric cooker capable of boosting voltage by using low-voltage direct current inversion and improving electromagnetic heating power |
| CN112312592B (en) * | 2019-08-01 | 2023-01-24 | 佛山市顺德区美的电热电器制造有限公司 | Heating circuit, heating cup and vehicle-mounted heater |
| CN114401564B (en) * | 2022-01-12 | 2024-05-24 | 广东美的厨房电器制造有限公司 | Microwave oven and vehicle |
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| KR20010058107A (en) * | 1999-12-24 | 2001-07-05 | 윤종용 | Power Circuit For DC Microwave Oven |
| CN201833934U (en) * | 2010-11-02 | 2011-05-18 | 湘潭电机股份有限公司 | Multi-functional outdoor life support vehicle |
| CN203964054U (en) * | 2014-06-25 | 2014-11-26 | 广东美的厨房电器制造有限公司 | Vehicle-carried microwave stove |
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