CN104501229A - Microwave oven - Google Patents
Microwave oven Download PDFInfo
- Publication number
- CN104501229A CN104501229A CN201410846541.6A CN201410846541A CN104501229A CN 104501229 A CN104501229 A CN 104501229A CN 201410846541 A CN201410846541 A CN 201410846541A CN 104501229 A CN104501229 A CN 104501229A
- Authority
- CN
- China
- Prior art keywords
- winding
- transformer
- magnetron
- cathode
- input
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/662—Aspects related to the boost transformer of the microwave heating apparatus
-
- 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
- H05B6/68—Circuits for monitoring or control
-
- 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
-
- 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
- H05B6/68—Circuits for monitoring or control
- H05B6/687—Circuits for monitoring or control for cooking
-
- 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
- H05B6/80—Apparatus for specific applications
-
- 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
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
Abstract
The invention relates to a microwave oven. The microwave oven comprises a magnetron and a high-voltage transformer, wherein the high-voltage transformer comprises a framework, a primary winding, a first secondary winding, a second secondary winding and a transformer; the transformer comprises an input winding and an output winding; the output winding is connected with the cathode of the magnetron to form a current loop; the output end of the second secondary winding is connected with the input end of the input winding; two output ends of the first secondary winding are respectively connected with two input ends of a full-wave rectifier; and the anode output end of the full-wave rectifier is grounded, and the cathode output end of the full-wave rectifier is connected with the cathode of the magnetron. The microwave oven is reasonable in design; the transformer is additionally arranged to supply power to the cathode of the magnetron, so that the microwave output quantity of the magnetron can be increased as much as possible; the transformer is additionally arranged to supply a heating current to the cathode of the magnetron, so that the heating current of the cathode and the phases of voltages provided by the secondary windings can be regulated through the transformer, and furthermore the power is up to the maximum value; and devices such as a phase shifter are additionally arranged so that the best regulating effect can be achieved.
Description
Divisional application, original bill application number: 2011101911431, the applying date: on July 8th, 2011, sends out and claims title: micro-wave oven
Technical field
The present invention relates to a kind of micro-wave oven.
Background technology
Secondary general of existing a kind of high voltage transformer of microwave oven exports about 2000VAC, and secondary windings one end is by contacting ground connection with transformer framework, therefore secondary below with a half-wave voltage-multiplying circuit at micro-wave oven, high-tension transformer in a sinusoidal wave half period first to the capacitor charging in half-wave voltage-multiplying circuit, then output during other half reversal periods of high-tension transformer is utilized, the voltage that the original electric capacity having charged electricity of superposition forms an about 4000VAC makes its work to magnetron, in order to prevent the security incidents such as the high temperature of high-tension transformer causes winding on fire, a general high-voltage fuse component of connecting between high-tension transformer secondary windings and high-voltage capacitance, when there is the exceptions such as image height pressure diode breakdown, the electric current of secondary windings exceedes the current limit of high-voltage fuse, fuse will burn to play a protective role.Also has a kind of high voltage transformer of microwave oven, its secondary windings directly exports enough voltage driven magnetrons, a high pressure full-wave rectifier is connected after this secondary windings, the cathode output end of full-wave rectifier is connected with the ground of micro-wave oven, and the anode of magnetron is also be electrically connected with the positive pole of full-wave rectifier by the ground of micro-wave oven.Also has a kind of high voltage transformer of microwave oven of frequency conversion, he can adopt half-wave or all-wave mode, the micro-wave oven transformer that the high-tension transformer just used is high frequency, because the number of turn difference hundred times of the secondary windings of high voltage transformer of microwave oven and Filament Winding, so there is larger phase difference in the voltage of inducting in Filament Winding and secondary windings, just there is larger phase difference in the heating current being applied to voltage between magnetron anode and cathode and Filament Winding, therefore, no matter use the micro-wave oven of which kind of high-tension transformer, its power output does not all reach maximum.
Summary of the invention
Therefore, the first object of the present invention is to provide one that power output can be allowed to reach maximized micro-wave oven as far as possible.
Above-mentioned purpose adopts following technical proposals to realize.
A kind of micro-wave oven, comprise magnetron, high-tension transformer and transformer, high-tension transformer comprises skeleton, armature winding and secondary windings, transformer comprises input winding and exports winding, output winding and magnetron cathode connect and compose current loop, and the output of secondary windings is connected with the input of input winding.
Technique scheme can be done following perfect further.
High-tension transformer can be the high voltage transformer of microwave oven of half-wave times die mould, also can be the high-tension transformer of full-wave rectification type.
High-tension transformer can also include oneself Filament Winding, and Filament Winding and magnetron cathode form current loop.
The phase shifter changing input winding power phase can be increased between input winding and the power supply of input winding.
Phase shifter can be increased to adjust the heating current phase place of negative electrode in the loop exporting winding and magnetron cathode composition.
Therefore, the second object of the present invention is also to provide one that power output can be allowed to reach maximized micro-wave oven as far as possible.
Above-mentioned purpose adopts following technical proposals to realize.
A kind of micro-wave oven, comprise magnetron, high-tension transformer and transformer, high-tension transformer comprises skeleton, armature winding, the first secondary windings and second subprime winding, transformer comprises input winding and exports winding, output winding and magnetron cathode connect and compose current loop, and the output of second subprime winding is connected with the input of input winding.
Technique scheme can be done following perfect further.
High-tension transformer can be the high voltage transformer of microwave oven of half-wave times die mould, also can be the high-tension transformer of full-wave rectification type.
High-tension transformer can also include oneself Filament Winding, and Filament Winding and magnetron cathode form current loop.
High-tension transformer can comprise two secondary windings, and one provides the voltage difference between anode and cathode separately through half-wave multiplication of voltage or way of full-wave rectification, and another secondary windings is separately for input winding provides power supply.
The phase shifter changing input winding power phase can be increased between input winding and the power supply of input winding.
Phase shifter can be increased to adjust the heating current phase place of negative electrode in the loop exporting winding and magnetron cathode composition.
The present invention is reasonable in design, power by increasing the negative electrode of a transformer to magnetron, the microwave output quantity of magnetron can be improved as far as possible, increase the negative electrode of a transformer to magnetron and heating current is provided, object can be adjusted the phase place of the voltage that the heating current of negative electrode and secondary windings provide by this transformer by structure, make power reach maximum, increasing the devices such as phase shifter is exactly allow adjustment reach best effect.
Accompanying drawing explanation
Fig. 1 is the electric diagram of embodiment 1;
Fig. 2 is the electric diagram of embodiment 2;
Fig. 3 is the electric diagram of embodiment 3;
Fig. 4 is the electric diagram of embodiment 4;
Fig. 5 is the electric diagram of embodiment 5;
Fig. 6 is the electric diagram of embodiment 6;
Fig. 7 is the electric diagram of embodiment 7;
Fig. 8 is the electric diagram of embodiment 8.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1; composition graphs 1; a kind of micro-wave oven; comprise high-tension transformer 1, full-wave rectifier 13 and magnetron 14; high-tension transformer 1 comprises again armature winding 2, secondary windings 3 and skeleton A, armature winding and has input 7,8,9; secondary windings 3 output and the electrical connection of full-wave rectifier 13 input; secondary windings 3 output is in series with current protective device 12; the cathode output end of full-wave rectifier 13 is connected with magnetron 14 negative electrode 15, the cathode output end ground connection of magnetron 14 anode and full-wave rectifier 13.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, exports winding 6 and skeleton B, and the negative electrode 15 exporting winding 6, phase shifter 16 and magnetron 14 forms current loop.The input of input winding is electrically connected with secondary windings 3 output.
Embodiment 2, composition graphs 2, with the difference of embodiment 1, embodiment 2 is that armature winding 2 only has input 7 and 9, the negative electrode 15 exporting winding 6 and magnetron 14 forms current loop, eliminates phase shifter 16.
Embodiment 3, composition graphs 3, with the difference of embodiment 2, embodiment 3 is that the input winding 5 of transformer 4 is connected with capacitive phase shifter 17.
Embodiment 4; composition graphs 4; a kind of micro-wave oven; comprise high-tension transformer 1, full-wave rectifier 13 and magnetron 14; high-tension transformer 1 comprises again armature winding 2, first secondary windings 31, second subprime winding 18 and skeleton A, armature winding and has input 7,9; first secondary windings 31 output and the electrical connection of full-wave rectifier 13 input; first secondary windings 31 output is in series with current protective device 12; the cathode output end of full-wave rectifier 13 is connected with magnetron 14 negative electrode 15, the cathode output end ground connection of magnetron 14 anode and full-wave rectifier 13.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, exports winding 6 and skeleton B, exports winding 6 and is connected to form current loop with the negative electrode 15 of magnetron 14.The input of input winding 5 is electrically connected with second subprime winding 18 output.Input winding 5 is connected with capacitive phase shifter 17.
Embodiment 5, composition graphs 5, embodiment 5 is also to comprise Filament Winding 24 at high-tension transformer 1 with the difference of embodiment 4, and Filament Winding 24 and magnetron cathode 15 are electrically connected.Input winding 5 cancels capacitive phase shifter 17.
Embodiment 6, composition graphs 6, a kind of micro-wave oven, comprise high-tension transformer 1 and magnetron 14, high-tension transformer 1 comprises again armature winding 2, secondary windings 3 and skeleton A, armature winding and has input 7,9, secondary windings 3 one output head grounding, another output connection high-voltage insurance assembly 19, high-voltage capacitance 20, diode 21 form half-wave voltage-multiplying circuit, diode 21 output head grounding, the circuit between high-voltage capacitance 20 and diode 21 is connected with magnetron cathode 15, magnetron 14 plus earth.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, exports winding 6 and skeleton B, and the negative electrode 15 exporting winding 6 and magnetron 14 is connected to form current loop.One input of input winding is electrically connected with secondary windings 3 one output, another input end grounding of input winding.
Embodiment 7, composition graphs 7, embodiment 7 and the difference of embodiment 6 are that two outputs exporting winding 6 are connected with the input of rectifier 22, and the output of rectifier 22 is electrically connected with electric capacity 23 two ends, and the two ends of electric capacity 23 are electrically connected with negative electrode 15 two ends of magnetron 14.
Embodiment 8, composition graphs 8, with the difference of embodiment 6, embodiment 8 is that high-tension transformer 1 also comprises Filament Winding 24, Filament Winding 24 connects to form loop with the negative electrode 15 of magnetron 14.
Inductive type phase shifter 16 in above-described embodiment and capacitor type phase shifter 17 mainly realize carrying out phase shift to the power supply of input magnetron cathode 15.
The high-tension transformer of above-described embodiment and the transformer of increase can be common transformers, and also can be the variable-frequency power sources being equivalent to common transformer, wherein high-tension transformer can adopt the mode of half-wave or all-wave.
Claims (1)
1. a micro-wave oven, comprise magnetron and high-tension transformer, high-tension transformer comprises skeleton, armature winding, first secondary windings and second subprime winding, it is characterized in that: also comprise a transformer, transformer comprises input winding and exports winding, output winding and magnetron cathode connect and compose current loop, the output of second subprime winding is connected with the input of input winding, the defeated end of described first secondary windings two connects full-wave rectifier two input respectively, full-wave rectifier cathode output end ground connection, cathode output end is connected with magnetron cathode, described high-tension transformer also comprises Filament Winding, Filament Winding output is connected with magnetron cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846541.6A CN104501229B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120161671 | 2011-05-19 | ||
| CN2011201616718 | 2011-05-19 | ||
| CN201110191143.1A CN102200306B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
| CN201410846541.6A CN104501229B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110191143.1A Division CN102200306B (en) | 2011-05-01 | 2011-07-08 | Micro-wave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104501229A true CN104501229A (en) | 2015-04-08 |
| CN104501229B CN104501229B (en) | 2016-09-07 |
Family
ID=44661181
Family Applications (13)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846743.0A Expired - Fee Related CN104507193B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN2011101911249A Pending CN102200305A (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846781.6A Expired - Fee Related CN104566538B (en) | 2011-05-01 | 2011-07-08 | Microwave oven |
| CN201410846525.7A Expired - Fee Related CN104507191B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846541.6A Expired - Fee Related CN104501229B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
| CN201410846589.7A Expired - Fee Related CN104507192B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846685.1A Expired - Fee Related CN104501230B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846596.7A Expired - Fee Related CN104654380B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846905.0A Expired - Fee Related CN104456651B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846588.2A Pending CN104566537A (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846760.4A Expired - Fee Related CN104501231B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
| CN201410846618.XA Expired - Fee Related CN104486858B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201110191143.1A Expired - Fee Related CN102200306B (en) | 2011-05-01 | 2011-07-08 | Micro-wave oven |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846743.0A Expired - Fee Related CN104507193B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN2011101911249A Pending CN102200305A (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846781.6A Expired - Fee Related CN104566538B (en) | 2011-05-01 | 2011-07-08 | Microwave oven |
| CN201410846525.7A Expired - Fee Related CN104507191B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
Family Applications After (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846589.7A Expired - Fee Related CN104507192B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846685.1A Expired - Fee Related CN104501230B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846596.7A Expired - Fee Related CN104654380B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846905.0A Expired - Fee Related CN104456651B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846588.2A Pending CN104566537A (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201410846760.4A Expired - Fee Related CN104501231B (en) | 2011-05-19 | 2011-07-08 | Micro-wave oven |
| CN201410846618.XA Expired - Fee Related CN104486858B (en) | 2011-05-19 | 2011-07-08 | Microwave oven |
| CN201110191143.1A Expired - Fee Related CN102200306B (en) | 2011-05-01 | 2011-07-08 | Micro-wave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (13) | CN104507193B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601130A (en) * | 2018-05-20 | 2018-09-28 | 深圳戴普森新能源技术有限公司 | Magnetron power source circuit and control method, micro-wave oven |
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- 2011-07-08 CN CN201410846760.4A patent/CN104501231B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102200306A (en) | 2011-09-28 |
| CN104501230A (en) | 2015-04-08 |
| CN104456651A (en) | 2015-03-25 |
| CN104507192B (en) | 2016-04-20 |
| CN104507191B (en) | 2016-04-20 |
| CN104501231B (en) | 2016-09-07 |
| CN104566537A (en) | 2015-04-29 |
| CN104507192A (en) | 2015-04-08 |
| CN102200305A (en) | 2011-09-28 |
| CN104654380B (en) | 2017-04-19 |
| CN104507193B (en) | 2016-04-13 |
| CN104501230B (en) | 2016-08-17 |
| CN104507193A (en) | 2015-04-08 |
| CN104501229B (en) | 2016-09-07 |
| CN104654380A (en) | 2015-05-27 |
| CN104566538A (en) | 2015-04-29 |
| CN104566538B (en) | 2017-01-25 |
| CN104486858A (en) | 2015-04-01 |
| CN104507191A (en) | 2015-04-08 |
| CN104486858B (en) | 2016-04-13 |
| CN104456651B (en) | 2017-02-22 |
| CN104501231A (en) | 2015-04-08 |
| CN102200306B (en) | 2015-10-14 |
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