CN201593826U - Double-burner full-bridge electromagnetic oven - Google Patents
Double-burner full-bridge electromagnetic oven Download PDFInfo
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- CN201593826U CN201593826U CN2010201047661U CN201020104766U CN201593826U CN 201593826 U CN201593826 U CN 201593826U CN 2010201047661 U CN2010201047661 U CN 2010201047661U CN 201020104766 U CN201020104766 U CN 201020104766U CN 201593826 U CN201593826 U CN 201593826U
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Abstract
The utility model discloses a double-burner full-bridge electromagnetic oven, which includes an oven body, two oven trays, two electromagnetic induction coils and an electronic circuit board; and a rectification circuit connected with a three-phase alternating current power supply, a full-bridge series resonance inverter circuit and a drive circuit thereof, a controller for realizing the control and the adjustment of the full-bridge series resonance inverter circuit through controlling the drive circuit, temperature and current detection circuits, an AC/DC power supply module, and a control key and a display connected with the controller are arranged on the electronic circuit board, wherein the full-bridge series resonance inverter circuit is connected with the rectification circuit and provides alternating electric energy to the two electromagnetic induction coils. The utility model has the advantages of small volume, reasonable circuit design, low cost, convenient use and operation, and high heating efficiency; the two burners can work independently and work safely and reliably; and the utility model utilizes the PFM power control mode and the full-bridge series resonance inverter circuit to greatly improve the reliability and the heating efficiency of a commercial electromagnetic oven and reduce the external radiation.
Description
Technical field
The utility model relates to a kind of commercial electromagnetic oven, especially relates to a kind of twin furnace head full-bridge electromagnetic oven.
Background technology
At present the heating cooker that generally adopts of China mostly is gas-cooker greatly, and the relative coal fired stove of gas-cooker is although convenient and healthy, but thermal radiation that produces behind the hidden danger of combustion gas and the fuel gas buring and waste gas have caused new pollution again with human body, environment.Thereby the electromagnetism heating cooker does not produce advantages such as thermal radiation with its quick heating, thermal efficiency height, the flames of anger, no flue dust, no pernicious gas, to environment in recent years, and industry is subjected to people's favor more more.
Can be divided into two kinds of family expenses electromagnetic oven and commercial electromagnetic ovens according to the watt level of electromagnetic oven.Wherein, commercial electromagnetic oven is a kind of hot-water heating electrical equipment that utilizes electromagnetic induction principle to convert electrical energy into heat energy.In commercial electromagnetic oven inside, earlier the alternating voltage of 50/60Hz is become DC voltage by rectification circuit, convert DC voltage to high frequency voltage that frequency is 20-40KHz through control circuit again, the electric current that changes flows through the magnetic field that coil can produce the high speed variation at a high speed, when heating by metalware (magnetic conduction is conductive material again), the magnetic line of force in the magnetic field produces countless little eddy current in the metallic object of position, make heater heating at a high speed voluntarily itself, and then water and food in the heating vessel.But what nowadays employed commercial electromagnetic oven mostly all adopted on the domestic market is the parallel resonance circuit, exist in the practical operation electromagnetic interference seriously, lower, the more high defective of radiation degree of the efficiency of heating surface and deficiency.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of twin furnace head full-bridge electromagnetic oven is provided, its volume is little, circuit design is reasonable, cost is low and it is easy and simple to handle to use, the efficiency of heating surface is high, two set burners can separate work and performance safe and reliable, utilize PFM power adjusting mode and full-bridge series resonance inverter circuit significantly to improve the reliability and the efficiency of heating surface and little of commercial electromagnetic oven to external radiation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of twin furnace head full-bridge electromagnetic oven, the electromagnetic induction coil and the electronic circuit board that comprise body of heater, be arranged on the stone or metal plate for standing a stove on as a precaution against fire on the described body of heater and be laid in described body of heater inside is characterized in that: the quantity of described stone or metal plate for standing a stove on as a precaution against fire and electromagnetic induction coil is two; Described electronic circuit board is provided with the rectification circuit that joins with the three-phase alternating current power supply and described three-phase alternating current power supply institute input AC electricity is carried out rectification, join with rectification circuit and the full-bridge series resonance inverter circuit of alternate electric energy is provided for electromagnetic induction coil, the drive circuit of full-bridge series resonance inverter circuit, the power output of full-bridge series resonance inverter circuit is controlled the controller of adjustment by drive circuit being controlled realization, the temperature sensing circuit that electromagnetic oven stone or metal plate for standing a stove on as a precaution against fire temperature and electronic circuit plate temperature are detected in real time, the current detection circuit that the operating current of full-bridge series resonance inverter circuit and electromagnetic induction coil is detected in real time, control button and the display unit that joins with controller and be respectively controller and the AC/DC power module of full-bridge series resonance inverter circuit power supply respectively, described temperature sensing circuit and current detection circuit all connect controller, two voltage output ends of described full-bridge series resonance inverter circuit join with two electromagnetic induction coils respectively and described two electromagnetic induction coils mutually and connect, described controller and full-bridge series resonance inverter circuit all join with drive circuit; Described AC/DC power module joins with controller and full-bridge series resonance inverter circuit.
Described full-bridge series resonance inverter circuit comprises full bridge inverter of being made up of the IGBT module and the series resonant circuit that joins with described full bridge inverter, described drive circuit is an IGBT module drive circuit, and the IGBT module in described IGBT module drive circuit and the described full bridge inverter is joined; IGBT module in described AC/DC power module and the described full bridge inverter is joined.
Described controller is chip AT89S52.
Described series resonant circuit is the LC series resonant circuit.
Also comprise the memory cell and the timer that join with controller.
The utility model compared with prior art has the following advantages:
1, circuit design is reasonable, cost is low and it is easy and simple to handle to use, and volume is little, saves floor space.。
2, performance is safe and reliable, stable work in work, reliability height.
3, adopt the PFM mode to regulate power output by controller, and adopt the full-bridge series resonance inverter circuit to provide the frequency conversion alternate electric energy to electromagnetic induction coil, thereby the utility model electromagnetic oven output power be adjusted to step-less adjustment, can adjust power arbitrarily according to the quality of metal in the core-type induction furnace stove during actual the use, make it coupling, can cut down the consumption of energy efficiency of heating surface height so greatly.
4, result of use is good, have quick heating, thermal efficiency height, the flames of anger, no flue dust, no pernicious gas, to surrounding environment do not produce heat radiation, volume is little, security good and advantage such as appearance looks elegant.
5, be provided with two burners and two separate operate as normal of burner energy, reliable working performance, thereby very easy to use.Simultaneously, controller has conversion and the synchronous Presentation Function between Celsius temperature C and Fahrenheit temperature F.
In sum, the utility model volume is little, circuit design is reasonable, cost is low and it is easy and simple to handle to use, the efficiency of heating surface is high, two set burners can separate work and performance safe and reliable, efficiently solve the serious problem of high-power electromagnetic oven EMC index, utilize PFM power adjusting mode and full-bridge series resonance inverter circuit significantly to improve the reliability and the efficiency of heating surface and little of commercial electromagnetic oven external radiation.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Description of reference numerals:
The 1-rectification circuit; The contrary 3-1-electromagnetic induction coil one of 2-full-bridge series resonance;
The power transformation road;
3-2-electromagnetic induction coil two; The 4-controller; 5-controls button;
The 6-display unit; The 7-temperature sensing circuit; The 8-current detection circuit;
The 9-drive circuit; The 10-AC/DC power module; 11-three-phase alternating current power supply;
The 12-alarm unit; The 13-memory cell; The 14-timer.
The specific embodiment
As shown in Figure 1, the utility model electromagnetic induction coil and electronic circuit board of comprising body of heater, being arranged on the stone or metal plate for standing a stove on as a precaution against fire on the described body of heater and being laid in described body of heater inside.The quantity of described stone or metal plate for standing a stove on as a precaution against fire and electromagnetic induction coil is two.Described electronic circuit board is provided with the rectification circuit 1 that joins with three-phase alternating current power supply 11 and 11 input AC electricity of described three-phase alternating current power supply are carried out rectification, join with rectification circuit 1 and the full-bridge series resonance inverter circuit 2 of alternate electric energy is provided for electromagnetic induction coil, the drive circuit 9 of full-bridge series resonance inverter circuit 2, the power output of full-bridge series resonance inverter circuit 2 is controlled the controller 4 of adjustment by drive circuit 9 being controlled realization, the temperature sensing circuit 7 that electromagnetic oven stone or metal plate for standing a stove on as a precaution against fire temperature and electronic circuit plate temperature are detected in real time, the current detection circuit 8 that the operating current of full-bridge series resonance inverter circuit 2 and electromagnetic induction coil is detected in real time, control button 5 and the display unit 6 that joins with controller 4 and be respectively controller 4 and the AC/DC power module 10 of full-bridge series resonance inverter circuit 2 power supplies respectively, described temperature sensing circuit 7 and current detection circuit 8 all connect controller 4, two voltage output ends of described full-bridge series resonance inverter circuit 2 join with two electromagnetic induction coils respectively and described two electromagnetic induction coils mutually and connect, described controller 4 and full-bridge series resonance inverter circuit 2 all join with drive circuit 9.Described two electromagnetic induction coils are respectively two electromagnetic induction coil one 3-1 and two electromagnetic induction coil two 3-2.Described AC/DC power module 10 joins with controller 4 and full-bridge series resonance inverter circuit 2.
In the present embodiment, described full-bridge series resonance inverter circuit 2 comprises full bridge inverter of being made up of the IGBT module and the series resonant circuit that joins with described full bridge inverter, described drive circuit 9 is an IGBT module drive circuit, and the IGBT module in described IGBT module drive circuit and the described full bridge inverter is joined.Described AC/DC power module 10 joins with the IGBT module in the described full bridge inverter.
Described controller 4 is chip AT89S52, and described series resonant circuit is the LC series resonant circuit.Simultaneously, the utility model also comprises memory cell 13 and the timer 14 that joins with controller 4.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (5)
1. twin furnace head full-bridge electromagnetic oven, the electromagnetic induction coil and the electronic circuit board that comprise body of heater, be arranged on the stone or metal plate for standing a stove on as a precaution against fire on the described body of heater and be laid in described body of heater inside is characterized in that: the quantity of described stone or metal plate for standing a stove on as a precaution against fire and electromagnetic induction coil is two; Described electronic circuit board is provided with the rectification circuit (1) that joins with three-phase alternating current power supply (11) and described three-phase alternating current power supply (11) institute input AC electricity is carried out rectification, join with rectification circuit (1) and the full-bridge series resonance inverter circuit (2) of alternate electric energy is provided for electromagnetic induction coil, the drive circuit (9) of full-bridge series resonance inverter circuit (2), the power output of full-bridge series resonance inverter circuit (2) is controlled the controller (4) of adjustment by drive circuit (9) being controlled realization, the temperature sensing circuit (7) that electromagnetic oven stone or metal plate for standing a stove on as a precaution against fire temperature and electronic circuit plate temperature are detected in real time, the current detection circuit (8) that the operating current of full-bridge series resonance inverter circuit (2) and electromagnetic induction coil is detected in real time, control button (5) and the display unit (6) that joins with controller (4) and be respectively controller (4) and the AC/DC power module (10) of full-bridge series resonance inverter circuit (2) power supply respectively, described temperature sensing circuit (7) and current detection circuit (8) all connect controller (4), two voltage output ends of described full-bridge series resonance inverter circuit (2) join with two electromagnetic induction coils respectively and described two electromagnetic induction coils mutually and connect, described controller (4) and full-bridge series resonance inverter circuit (2) all join with drive circuit (9); Described AC/DC power module (10) joins with controller (4) and full-bridge series resonance inverter circuit (2).
2. according to the described twin furnace head of claim 1 full-bridge electromagnetic oven, it is characterized in that: described full-bridge series resonance inverter circuit (2) comprises full bridge inverter of being made up of the IGBT module and the series resonant circuit that joins with described full bridge inverter, described drive circuit (9) is an IGBT module drive circuit, and the IGBT module in described IGBT module drive circuit and the described full bridge inverter is joined; Described AC/DC power module (10) joins with the IGBT module in the described full bridge inverter.
3. according to claim 1 or 2 described twin furnace head full-bridge electromagnetic ovens, it is characterized in that: described controller (4) is chip AT89S52.
4. according to the described twin furnace head of claim 2 full-bridge electromagnetic oven, it is characterized in that: described series resonant circuit is the LC series resonant circuit.
5. according to claim 1 or 2 described twin furnace head full-bridge electromagnetic ovens, it is characterized in that: also comprise the memory cell (13) and the timer (14) that join with controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047661U CN201593826U (en) | 2010-01-28 | 2010-01-28 | Double-burner full-bridge electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201047661U CN201593826U (en) | 2010-01-28 | 2010-01-28 | Double-burner full-bridge electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593826U true CN201593826U (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201047661U Expired - Fee Related CN201593826U (en) | 2010-01-28 | 2010-01-28 | Double-burner full-bridge electromagnetic oven |
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| Country | Link |
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| CN (1) | CN201593826U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571752A (en) * | 2018-04-10 | 2018-09-25 | 佛山市众拓科技有限公司 | The unicoil electromagnetic oven of the dual heating mode of infrared radiant energy and electromagnetic induction energy can be used simultaneously |
| CN109404994A (en) * | 2018-10-30 | 2019-03-01 | 佛山市顺德区金百利家用电器实业有限公司 | Multi-stove burner electromagnetic stove control method, system and multi-stove burner electromagnetic stove |
| CN113316278A (en) * | 2021-05-24 | 2021-08-27 | 核工业理化工程研究院 | Power-adjustable induction heating power supply system for heating graphite reaction kettle |
-
2010
- 2010-01-28 CN CN2010201047661U patent/CN201593826U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571752A (en) * | 2018-04-10 | 2018-09-25 | 佛山市众拓科技有限公司 | The unicoil electromagnetic oven of the dual heating mode of infrared radiant energy and electromagnetic induction energy can be used simultaneously |
| CN109404994A (en) * | 2018-10-30 | 2019-03-01 | 佛山市顺德区金百利家用电器实业有限公司 | Multi-stove burner electromagnetic stove control method, system and multi-stove burner electromagnetic stove |
| CN113316278A (en) * | 2021-05-24 | 2021-08-27 | 核工业理化工程研究院 | Power-adjustable induction heating power supply system for heating graphite reaction kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |