CN102200306A - Microwave oven - Google Patents

Microwave oven Download PDF

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Publication number
CN102200306A
CN102200306A CN2011101911431A CN201110191143A CN102200306A CN 102200306 A CN102200306 A CN 102200306A CN 2011101911431 A CN2011101911431 A CN 2011101911431A CN 201110191143 A CN201110191143 A CN 201110191143A CN 102200306 A CN102200306 A CN 102200306A
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CN
China
Prior art keywords
winding
magnetron
output
transformer
cathode
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
Application number
CN2011101911431A
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Chinese (zh)
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CN102200306B (en
Inventor
梁伟国
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Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN201410846525.7A priority Critical patent/CN104507191B/en
Priority to CN201410846596.7A priority patent/CN104654380B/en
Application filed by Individual filed Critical Individual
Priority to CN201410846618.XA priority patent/CN104486858B/en
Priority to CN201410846589.7A priority patent/CN104507192B/en
Priority to CN201410846685.1A priority patent/CN104501230B/en
Priority to CN201410846743.0A priority patent/CN104507193B/en
Priority to CN201410846781.6A priority patent/CN104566538B/en
Priority to CN201410846541.6A priority patent/CN104501229B/en
Priority to CN201410846905.0A priority patent/CN104456651B/en
Priority to CN201110191143.1A priority patent/CN102200306B/en
Priority to CN201410846760.4A priority patent/CN104501231B/en
Publication of CN102200306A publication Critical patent/CN102200306A/en
Application granted granted Critical
Publication of CN102200306B publication Critical patent/CN102200306B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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, which comprises a magnetron, a high-voltage transformer and a transformer, wherein the high-voltage transformer comprises a framework, a primary winding and a secondary winding; 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; and the output end of the secondary winding is connected with the input end of the input winding. The microwave oven is reasonable in design, power is supplied to the cathode of the magnetron by arranging a transformer, the microwave output quantity of the magnetron can be improved to the greatest extent, and heating current is provided for the cathode of the magnetron by arranging the transformer, so that the heating current of the cathode and voltage phase provided by the secondary winding can be adjusted through the transformer. Therefore, the power is maximized, and the best adjusting effect is achieved by arranging a phase shifter and other devices.

Description

Micro-wave oven
Technical field
The present invention relates to a kind of micro-wave oven.
Background technology
About secondary general the output 2000VAC of existing a kind of high voltage transformer of microwave oven; and secondary windings one end is by contacting ground connection with transformer framework; therefore have a half-wave voltage-multiplying circuit in the secondary back of micro-wave oven; high-tension transformer charges to the electric capacity in the half-wave voltage-multiplying circuit earlier in the half period of a sine wave; output when utilizing other half reversal periods of high-tension transformer then; the voltage that stack had originally charged about electric 4000VAC of electric capacity composition makes its work to magnetron; for the high temperature that prevents high-tension transformer causes security incidents such as winding is on fire; generally between high-tension transformer secondary windings and high-voltage capacitance the series connection high-voltage fuse component; in when, image height taking place pressing diode breakdown etc. unusual when; the electric current of secondary windings surpasses the current limit of high-voltage fuse, and fuse will burn to play a protective role.Also has a kind of high voltage transformer of microwave oven, its secondary windings is directly exported enough voltage and is driven magnetron, connect a high pressure full-wave rectifier behind 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 also is to be electrically connected with the positive pole of full-wave rectifier by the ground of micro-wave oven is next.The high voltage transformer of microwave oven that also has a kind of frequency conversion, he can adopt half-wave or all-wave mode, be employed high-tension transformer be the micro-wave oven transformer of high frequency, because the number of turn of the secondary windings of high voltage transformer of microwave oven and Filament Winding differs hundred times, so bigger phase difference appears in the voltage of inducting on Filament Winding and secondary windings, bigger phase difference just appears in the heating current that is applied to voltage between the 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, first purpose of the present invention is to provide a kind of power output that can allow 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, elementary winding and secondary windings, transformer comprises input winding and output 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 further perfect.
High-tension transformer can be the high voltage transformer of microwave oven of half-wave multiplication of voltage type, also can be the high-tension transformer of full-wave rectification type.
High-tension transformer can also include the Filament Winding of oneself, and Filament Winding and magnetron cathode are formed current loop.
Between the power supply of input winding and input winding, can increase the phase shifter that changes input winding power phase.
In the loop of output winding and magnetron cathode composition, can increase the heating current phase place that phase shifter is adjusted negative electrode.
Therefore, second purpose of the present invention also is to provide a kind of power output that can allow 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, elementary winding, first secondary windings and second subprime winding, transformer comprises input winding and output 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 further perfect.
High-tension transformer can be the high voltage transformer of microwave oven of half-wave multiplication of voltage type, also can be the high-tension transformer of full-wave rectification type.
High-tension transformer can also include the Filament Winding of oneself, and Filament Winding and magnetron cathode are formed current loop.
High-tension transformer can comprise two secondary windings, and one separately provides voltage difference between the anode and cathode by half-wave multiplication of voltage or way of full-wave rectification, and another secondary windings provides power supply for the input winding separately.
Between the power supply of input winding and input winding, can increase the phase shifter that changes input winding power phase.
In the loop of output winding and magnetron cathode composition, can increase the heating current phase place that phase shifter is adjusted negative electrode.
The present invention is reasonable in design, come the negative electrode of magnetron is powered by increasing a transformer, can improve the microwave output quantity of magnetron as far as possible, increase a transformer and provide heating current the negative electrode of magnetron, purpose is the energy structure is adjusted the heating current and the voltage that secondary windings provides of negative electrode by this transformer a phase place, make power reach maximum, devices such as increase phase shifter are exactly to allow adjust reach best effect.
Description of drawings
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.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1; in conjunction with Fig. 1; a kind of micro-wave oven; comprise high-tension transformer 1, full-wave rectifier 13 and magnetron 14; high-tension transformer 1 comprises that again elementary winding 2, secondary windings 3 and skeleton A, elementary winding have input 7,8,9; secondary windings 3 outputs and full-wave rectifier 13 inputs are electrically connected; secondary windings 3 outputs are in series with current protective device 12; the cathode output end of full-wave rectifier 13 is connected the cathode output end ground connection of magnetron 14 anodes and full-wave rectifier 13 with magnetron 14 negative electrodes 15.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, output winding 6 and skeleton B, and the negative electrode 15 of output winding 6, phase shifter 16 and magnetron 14 is formed current loop.The input of input winding is electrically connected with secondary windings 3 outputs.
Embodiment 2, and in conjunction with Fig. 2, embodiment 2 is that with the difference of embodiment 1 elementary winding 2 has only input 7 and 9, and the negative electrode 15 of output winding 6 and magnetron 14 is formed current loop, has cancelled phase shifter 16.
Embodiment 3, and in conjunction with Fig. 3, embodiment 3 is that with the difference of embodiment 2 the input winding 5 of transformer 4 is connected with capacitive phase shifter 17.
Embodiment 4; in conjunction with Fig. 4; a kind of micro-wave oven; comprise high-tension transformer 1, full-wave rectifier 13 and magnetron 14; high-tension transformer 1 comprises that again elementary winding 2, first secondary windings 31, second subprime winding 18 and skeleton A, elementary winding have input 7,9; first secondary windings, 31 outputs and full-wave rectifier 13 inputs are electrically connected; first secondary windings, 31 outputs are in series with current protective device 12; the cathode output end of full-wave rectifier 13 is connected the cathode output end ground connection of magnetron 14 anodes and full-wave rectifier 13 with magnetron 14 negative electrodes 15.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, output winding 6 and skeleton B, and output winding 6 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 outputs.Input winding 5 is connected with capacitive phase shifter 17.
Embodiment 5, and in conjunction with Fig. 5, embodiment 5 is also to comprise Filament Winding 24 at high-tension transformer 1 that Filament Winding 24 and magnetron cathode 15 are electrically connected with the difference of embodiment 4.The capacitive phase shifter 17 of input winding 5 cancellations.
Embodiment 6, in conjunction with Fig. 6, a kind of micro-wave oven, comprise high-tension transformer 1 and magnetron 14, high-tension transformer 1 comprises that again elementary winding 2, secondary windings 3 and skeleton A, elementary winding have input 7,9, secondary windings 3 one output head groundings, another output connects high pressure Arming Assembly 19, high-voltage capacitance 20, diode 21 formation half-wave voltage-multiplying circuits, diode 21 output head groundings, the circuit between high-voltage capacitance 20 and the diode 21 is connected with magnetron cathode 15, magnetron 14 plus earths.
Micro-wave oven also includes a transformer 4, and transformer 4 comprises input winding 5, output winding 6 and skeleton B, and the negative electrode 15 of output winding 6 and magnetron 14 is connected to form current loop.One input of input winding is electrically connected with secondary windings 3 one outputs, another input end grounding of input winding.
Embodiment 7, and in conjunction with Fig. 7, embodiment 7 is that with the difference of embodiment 6 two outputs of 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.Input winding 5 is connected with capacitive phase shifter 17.
Embodiment 8, and in conjunction with Fig. 8, embodiment 8 is that with the difference of embodiment 6 high-tension transformer 1 also comprises Filament Winding 24, and Filament Winding 24 connects to form the loop with the negative electrode 15 of magnetron 14.
Inductive type phase shifter 16 in the foregoing description and capacitor type phase shifter 17 mainly are to realize the power supply of input magnetron cathode 15 is carried out phase shift.
The high-tension transformer of the foregoing description and the transformer of increase can be common transformers, also can be the variable-frequency power sources that is equivalent to common transformer, and wherein high-tension transformer can adopt the mode of half-wave or all-wave.

Claims (10)

1. micro-wave oven, comprise magnetron and high-tension transformer, high-tension transformer comprises skeleton, elementary winding and secondary windings, it is characterized in that: also comprise a transformer, transformer comprises input winding and output 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.
2. according to the described micro-wave oven of claim 1, it is characterized in that: described secondary windings two outputs also connect full-wave rectifier two inputs respectively, full-wave rectifier cathode output end ground connection, and cathode output end is connected with magnetron cathode.
3. according to the described micro-wave oven of claim 1, it is characterized in that: described secondary windings one end ground connection, the other end is connected with high-voltage capacitance, diode, the diode cathode output head grounding, circuit between high-voltage capacitance and the diode is connected with magnetron cathode, anode of magnetron ground connection.
4. according to the described micro-wave oven of claim 2, it is characterized in that: described input winding 5 is connected with capacitive phase shifter.
5. according to claim 2 or 3 described micro-wave ovens, it is characterized in that: described high-tension transformer also comprises Filament Winding, and the Filament Winding output is connected with magnetron cathode.
6. micro-wave oven, comprise magnetron and high-tension transformer, high-tension transformer comprises skeleton, elementary winding, first secondary windings and second subprime winding, it is characterized in that: also comprise a transformer, transformer comprises input winding and output 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.
7. according to the described micro-wave oven of claim 6, it is characterized in that: described first secondary windings, two defeated ends connect full-wave rectifier two inputs respectively, full-wave rectifier cathode output end ground connection, and cathode output end is connected with magnetron cathode.
8. according to the described micro-wave oven of claim 6, it is characterized in that: described first secondary windings, one output head grounding, another output is connected with high-voltage capacitance, diode, the diode cathode output head grounding, circuit between high-voltage capacitance and the diode is connected with magnetron cathode, anode of magnetron ground connection.
9. according to the described micro-wave oven of claim 7, it is characterized in that: described input winding 5 is connected with capacitive phase shifter.
10. according to claim 7 or 8 described micro-wave ovens, it is characterized in that: described high-tension transformer also comprises Filament Winding, and the Filament Winding output is connected with magnetron cathode.
CN201110191143.1A 2011-05-01 2011-07-08 Micro-wave oven Expired - Fee Related CN102200306B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CN201410846541.6A CN104501229B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846618.XA CN104486858B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846596.7A CN104654380B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846685.1A CN104501230B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846743.0A CN104507193B (en) 2011-05-19 2011-07-08 Microwave oven
CN201110191143.1A CN102200306B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846525.7A CN104507191B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846589.7A CN104507192B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846781.6A CN104566538B (en) 2011-05-01 2011-07-08 Microwave oven
CN201410846760.4A CN104501231B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846905.0A CN104456651B (en) 2011-05-19 2011-07-08 Microwave oven

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN2011201616718 2011-05-19
CN201120161671 2011-05-19
CN201120161671.8 2011-05-19
CN201110191143.1A CN102200306B (en) 2011-05-19 2011-07-08 Micro-wave oven

Related Child Applications (11)

Application Number Title Priority Date Filing Date
CN201410846781.6A Division CN104566538B (en) 2011-05-01 2011-07-08 Microwave oven
CN201410846743.0A Division CN104507193B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846905.0A Division CN104456651B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846541.6A Division CN104501229B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846760.4A Division CN104501231B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846589.7A Division CN104507192B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846618.XA Division CN104486858B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846596.7A Division CN104654380B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846588.2A Division CN104566537A (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846685.1A Division CN104501230B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846525.7A Division CN104507191B (en) 2011-05-19 2011-07-08 Microwave oven

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CN102200306A true CN102200306A (en) 2011-09-28
CN102200306B CN102200306B (en) 2015-10-14

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Application Number Title Priority Date Filing Date
CN201410846905.0A Expired - Fee Related CN104456651B (en) 2011-05-19 2011-07-08 Microwave 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
CN201410846743.0A Expired - Fee Related CN104507193B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846588.2A Pending CN104566537A (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846589.7A Expired - Fee Related CN104507192B (en) 2011-05-19 2011-07-08 Microwave oven
CN2011101911249A Pending CN102200305A (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
CN201410846781.6A Expired - Fee Related CN104566538B (en) 2011-05-01 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
CN201410846760.4A Expired - Fee Related CN104501231B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846525.7A Expired - Fee Related CN104507191B (en) 2011-05-19 2011-07-08 Microwave oven

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CN201410846905.0A Expired - Fee Related CN104456651B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846618.XA Expired - Fee Related CN104486858B (en) 2011-05-19 2011-07-08 Microwave oven

Family Applications After (10)

Application Number Title Priority Date Filing Date
CN201410846743.0A Expired - Fee Related CN104507193B (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846588.2A Pending CN104566537A (en) 2011-05-19 2011-07-08 Microwave oven
CN201410846589.7A Expired - Fee Related CN104507192B (en) 2011-05-19 2011-07-08 Microwave oven
CN2011101911249A Pending CN102200305A (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
CN201410846781.6A Expired - Fee Related CN104566538B (en) 2011-05-01 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
CN201410846760.4A Expired - Fee Related CN104501231B (en) 2011-05-19 2011-07-08 Micro-wave oven
CN201410846525.7A Expired - Fee Related CN104507191B (en) 2011-05-19 2011-07-08 Microwave oven

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CN104456651A (en) 2015-03-25
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CN104507192A (en) 2015-04-08
CN102200306B (en) 2015-10-14

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