CN106225029A - A kind of solid state microwave power source and use the solid state microwave stove in this solid state microwave power source - Google Patents
A kind of solid state microwave power source and use the solid state microwave stove in this solid state microwave power source Download PDFInfo
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- CN106225029A CN106225029A CN201610717223.9A CN201610717223A CN106225029A CN 106225029 A CN106225029 A CN 106225029A CN 201610717223 A CN201610717223 A CN 201610717223A CN 106225029 A CN106225029 A CN 106225029A
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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
- H05B6/68—Circuits for monitoring or control
- H05B6/686—Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
-
- 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
- H05B6/6402—Aspects relating to the microwave cavity
-
- 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
-
- 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
- H05B6/72—Radiators or antennas
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The present invention relates to a kind of solid state microwave power source and microwave oven.A kind of solid state microwave power source, including signal source, prime amplifier, power divider and power divider balanced load, Microwave Power Module uses 1～n road solid semiconductor element GaN power amplifier tube to be amplified microwave source signal, described signal source is constituted local oscillation circuit by PLL and VCO, the microwave signal that signal source produces is amplified through prime amplifier, being then passed through power divider to be assigned as 1～n road microwave signal and deliver to GaN power amplifier tube, 1～n road HIGH-POWERED MICROWAVES signal after amplifying connects microwave transmitting antenna by RF output module.A kind of solid state microwave stove, including bell, body of heater and microwave control system, power source uses aforementioned solid microwave power source.Using the solid state microwave stove in this solid state microwave power source, ratio uses LDMOS semiconductor power amplification tube efficiency to improve 10%, and power density improves 34 times, and antenna volume can be made less, reduces the volume of microwave oven further.
Description
Technical field
The present invention relates to a kind of Microwave Power Module and microwave oven, especially relate to a kind of use solid semiconductor element
GaN(gallium nitride) microwave power source that microwave signal source is amplified by power amplifier tube and the solid-state that uses this microwave power source
Microwave oven.
Background technology
Current household microwave oven and Microwave Power Module are to be produced microwave by magnetron, and its structure as shown in Figure 1, is wrapped
Include fire door 101, furnace chamber 102, waveguide 103, bell 104, magnetron 105, cooling fan 106, high-pressure system 107 and stove window
108, the part such as microwave stirrer 109 is constituted.Its middle-and-high voltage system 107 is the core of whole domestic microwave furnace system, including height
The parts such as pressure transformer, high-voltage insurance, high-voltage capacitance, high-voltage diode, filament transformer.When high-pressure system 107 normally works,
There is provided pulsating direct current anode voltage and the filament voltage of 3-4V of required 4000V to magnetron 105, magnetron 105 is launched micro-
Ripple also guides furnace chamber 102 through waveguide 103, and microwave and the heated material in furnace chamber 102 are had an effect and played quickly heating
Purpose.
Use the household magnetic keyholed back plate microwave oven of above-mentioned Microwave Power Module due to the existence of high-pressure section, have cost high,
The problem such as volume is big, weight is big and voltage is high, and the bulky of magnetron own, rigorous service condition (need high voltage and cold
Radiator cooler), delivery efficiency is low, working life is short, manufacture difficulty is big, limits microwave oven development on efficient, energy saving direction.
Commercially available household magnetic keyholed back plate microwave oven, furnace chamber 102 generally rectangular side chamber, for making microwave that self-waveguide pipe 103 imports at furnace chamber
It is evenly distributed in 102 and produces resonance, using microwave stirrer 109 to rotate microwave reflection to furnace chamber 103, and food is placed
Under pallet, rotating mechanism is set, makes food rotate in heating process, reach the purpose uniformly heated.This kind of mechanism makes motion
Parts increase, and design and manufacture complexity.And square furnace cavity space utilization rate is the highest, it is impossible to reduce volume, make portable
Microwave oven.Although having new-type flat plate microwave oven to eliminate rotary-tray and the microwave stirrer of bottom, but base platform depending on
So need the entity antenna that rotation is set that the microwave of magnetron is imported furnace chamber uniformly as far as possible, need also exist for complexity
Moving component.
The technology of generation microwave is in addition to using magnetron at present, and also semiconductor device can produce microwave.But at present
Microwave technology based on quasiconductor is mainly used in radar and communications technical elements.Microwave in terms of radar and communications and use
The microwave main distinction in heating is only the difference of frequency range.The ISM(Industrial of microwave heating application regulation
Scientific Medical industry, science, medical science) frequency range is 915MHz and 2450MHz.915MHz is used for industrial microwave and adds
Heat, household microwave oven uses the frequency of 2450MHz.The microwave power source that generally semiconductor microwave oven uses, is all to use
Source, amplification principle.The microwave generator that many employings are special during actually used, as based on phaselocked loop and voltage controlled oscillator
Produce the microwave of required frequency.As in figure 2 it is shown, 2450Mhz microwave is through pre-amplification module 202 produced by signal source 201
Amplify for the first time and become low power microwave signal, then after power distribution module 203 and balanced load 210, enter 1 tunnel
Or two grades of LDMOS(Laterally Diffused Metal Oxide Semiconductor of multichannel, horizontal proliferation metal
Oxide semiconductor) power amplifier tube 204,209, obtain HIGH-POWERED MICROWAVES signal, through power combiner 205 and output balance
After load 208, export in microwave oven working cavity 206.Power detection module 207 is generally used for using detector diode detection
Voltage standing wave ratio detects the reflection power of microwave, carries out power control.
Summary of the invention
The present invention is directed to prior art not enough, it is proposed that a kind of use GaN(gallium nitride) semiconductor power amplification pipe micro-
Wave power source, and use the solid state microwave stove of this microwave power source, improve than using LDMOS semiconductor power amplification tube efficiency
10%, power density improves 3-4 times, and antenna volume can be made less, reduces the volume of microwave oven further.
The technical solution adopted in the present invention:
A kind of solid state microwave power source, including signal source (401), prime amplifier (402), power divider (403) and power
Allotter balanced load (405), Microwave Power Module, described Microwave Power Module uses 1～n road solid semiconductor element GaN
Microwave source signal is amplified by power amplifier tube, and described signal source (401) is made up of local oscillation circuit, signal PLL and VCO
The microwave signal that source (401) produces is enlarged into low power microwave signal through prime amplifier (402), is then passed through power divider
(403) it is assigned as 1～n road microwave signal to deliver to GaN power amplifier tube (404) and carry out power amplification, 1～n after amplifying
Road HIGH-POWERED MICROWAVES signal connects microwave transmitting antenna by RF output module (406), and described n is natural number.
Described solid state microwave power source, microwave transmitting antenna uses distributing antenna system, and distributing antenna system is adopted
With slot antenna, distributing antenna system contains 1～n sheet circular arc waveguide (501), every circular arc waveguide
(501) inner side is distributed horizontal gap (502) and vertical clearance gap (503), described horizontal gap (502) and vertical clearance gap (503)
For omnidirectional distribution, collectively form waveguide broadside seam antenna, every circular arc waveguide respectively with corresponding GaN power amplifier tube
(404) docking.
Described solid state microwave power source, distributing antenna system uses 1～n spiral arm flat helical antenna, described plane
Helical antenna (604) plane is constituted by equiangular spiral part (601) and Archimedian screw (602) are compound；In the middle part of antenna plane
Be correspondingly provided with 1～n droplet-shaped distributing point (603), distributing point by impedance transformer (605) respectively with corresponding GaN power
Amplifier tube (404) docks, and flat helical antenna (604) back is provided with parabolic (606).
A kind of solid state microwave stove, including bell, body of heater and microwave control system, described microwave power source is by signal source
(401), prime amplifier (402), power divider (403), 1～n road GaN power amplifier tube (404) and power divider are put down
Weighing apparatus load (405) composition, described signal source (401) is made up of local oscillation circuit PLL and VCO, and it is micro-that signal source (401) produces
Ripple signal is enlarged into low power microwave signal through prime amplifier (402), then is assigned as 1～n through power divider (403)
Road microwave signal is delivered to GaN power amplifier tube (404) and is carried out power amplification, 1～n road HIGH-POWERED MICROWAVES letter after amplifying
Number by RF output module (406) connect microwave transmitting antenna, feeding HIGH-POWERED MICROWAVES signal to body of heater inner chamber, n is natural number.
Described solid state microwave stove, microwave transmitting antenna uses distributing antenna system, and described distributing antenna system is adopted
With slot antenna, outer rim uniform 1～n sheet circular arc waveguide (501) at body of heater inner bag, every circular arc waveguide
(501) inner side is distributed horizontal gap (502) and vertical clearance gap (503), described horizontal gap (502) and vertical clearance gap (503)
For omnidirectional distribution, collectively form waveguide broadside seam antenna, inside every circular arc waveguide, have the aerial head for microwave coupling
(506) and for the coaxial fitting (504) docked with microwave power source (304).
Described solid state microwave stove, microwave transmitting antenna uses distributing antenna system, and described distributing antenna system is adopted
With 1～n spiral arm flat helical antenna, described flat helical antenna (604) is placed in the lower section of body of heater inner bag, and antenna plane is by isogonism
Spiral part (601) and the compound composition of Archimedian screw (602)；1～n droplet-shaped feed it is correspondingly provided with in the middle part of antenna plane
Point (603), distributing point is connected with coaxial fitting (607) through back of the body cavity segment by impedance transformer (605), is provided with in back of the body intracavity portion
Parabolic (606).
Described solid state microwave stove, body of heater uses cylinder, and upper end is furnace upper cover (301), in body of heater inner bag includes
Gallbladder (318) and bottom inner container (319), upper inner-liner (318) is arranged in furnace upper cover (301), described upper inner-liner (318) and bottom inner container
(319) being collectively forming cylindrical microwave resonant operational cavity, furnace upper cover (301) is hinged with cylindrical furnace (303) and is provided with
Fixed agraffe (302), furnace upper cover (301) is provided with electromagnet apparatus (320) with the bound fraction of body of heater bottom inner container (319), electricity
Magnet arrangement (320) links with fixed agraffe (302).
Described solid state microwave stove, bottom of furnace body is provided with base (306), described base (306) built-in power supply part and micro-
Wave power source, microwave power source (304) is placed on power supply part, and power supply part provides the work of 0-50V to GaN microwave power source
Make voltage and provide 12V, 5V, 3.3V direct-current working volts for control system；Described base (306) upper surface is provided with or therefrom
Draw 1～n the microwave coaxial cable out splice going splice (305) being connected with described solid state microwave power source (304).
Described solid state microwave stove, furnace upper cover (301) is outside is provided with display heat time heating time and duty and electricity
The LCD screen of pond dump energy information or charactron (316) and function button (315)；Furnace upper cover is provided with temperature in (301)
Sensor (317) built-in IR temperature unit (416), described IR temperature unit (416) is by infrared thermopile induction apparatus and signal
Regulation chip portfolio encapsulation forms, and output digit signals is for the MCU process of control system, and control system can by regulation VCO's
Power transformation capacitance regulates the operating frequency of local oscillation circuit in the range of 2450 ± 50MHz, and controls power supply part to 1～n
Road GaN power amplifier tube provides 0-50V running voltage, and is changed by the regulation of running voltage, controls GaN power amplifier tube
Output.
Invention beneficial effect:
1, microwave power source of the present invention and solid state microwave stove use the GaN(gallium nitride of low voltage operating) semiconductor power amplification
Pipe, running voltage low (direct current 50V), relative to 4000 volts of high pressure needed for conventional magnetron pipe microwave oven, can save in complex and expensive
High pressure generating apparatus, cost is lower, safety is higher.The antenna without moving component is used to constitute heating chamber, for tradition
Microwave magnetron stove need with parts such as the microwave stirrer of compound movement parts and rotating disks, enormously simplify microwave oven knot
Structure.
2, microwave power source of the present invention and solid state microwave stove use GaN(gallium nitride) semiconductor microwave power device constitutes
Microwave Power Module, ratio uses LDMOS(Laterally Diffused Metal Oxide Semiconductor, laterally expands
Dispersed metallic oxide semiconductor) efficiency raising about 10%, power density improves 3-4 times.Heavy relative to needs high pressure and volume
Traditional magnetron, can make antenna volume less, reduces the volume of microwave oven further.
3, microwave power source of the present invention and solid state microwave stove use 1 road or multichannel GaN(gallium nitride) semiconductor power amplification
Pipe constitute microwave power source, low power microwave signal is through GaN(gallium nitride) semiconductor power amplification pipe amplify after, it is not necessary to power close
Become, be respectively adopted 1 road or N road RF output, microwave power source structure can be simplified, it is not necessary to the microwave power synthesizer of high cost.
4, solid state microwave power source of the present invention and microwave oven use GaN(gallium nitride) semiconductor power amplification pipe composition microwave
Power source, can use internal battery to power or external direct current power supply work, under specific circumstances, it might even be possible to access the sun
Can cell panel powered operation.Volume is little, lightweight, and power supply mode is various, convenient making portable microwave stove, adds microwave oven
Performance easy to use.
5, solid state microwave stove of the present invention uses spaced antenna structure, uses four road Waveguide slot antenna unit, every road ripple
The driving source power led and frequency all can pass through control system independent regulation.Gap in slot antenna uses omnidirectional distribution row
Row so that the interference between gap reduces, and ensure that the even microwave distribution in cylindrical cavity to greatest extent.It is a kind of respond well
Low cost distributing line antenna realize.
6, solid state microwave stove of the present invention uses spaced antenna structure, uses four spiral arm flat helical antennas, antenna back of the body chamber
Plate penetrated by middle band parabolic panel, can be to form, in column type heating chamber, the microwave field distribution matched.Four spiral arm snail skies
Line volume is little, and gain is high, without any operation parts.This example is generally used for always launching power and uses less than in the case of 200W.
Accompanying drawing explanation
Fig. 1 is existing microwave magnetron furnace structure schematic diagram；
Fig. 2 is existing LDMOS microwave power source circuit theory diagrams；
Fig. 3 a is solid state microwave stove overall structure schematic diagram of the present invention；
Fig. 3 b is solid state microwave furnace base structural representation of the present invention；
Fig. 3 c is solid state microwave furnace body superstructure schematic diagram of the present invention；
Fig. 4 a, Fig. 4 b, Fig. 4 c are one of solid state microwave stove spaced antenna of the present invention structural representation；
Fig. 5 a, Fig. 5 b, Fig. 5 c are two structural representations of solid state microwave stove spaced antenna of the present invention；
Fig. 6 is solid state microwave stove electrical block diagram of the present invention.
Detailed description of the invention
Below by detailed description of the invention, technical scheme is described in further detail.
Embodiment 1
Seeing Fig. 6, microwave power source of the present invention, including signal source 401, prime amplifier 402, power divider 403 and power
Allotter balanced load 405, Microwave Power Module, described Microwave Power Module uses 1～n road solid semiconductor element GaN merit
Microwave source signal is amplified by rate amplifier tube, and described signal source is made up of local oscillation circuit PLL and VCO, and signal source 401 is produced
Raw microwave signal is enlarged into low power microwave signal through prime amplifier 402, is then passed through power divider 403 and is assigned as 1
1～the n road HIGH-POWERED MICROWAVES～n road microwave signal delivers to GaN power amplifier tube 404 and carry out power amplification, after amplifying
Signal connects microwave transmitting antenna by RF output module 406, and described n is natural number.
Embodiment 2
Seeing Fig. 6, Fig. 4, the microwave power source of the present embodiment, as different from Example 1, microwave transmitting antenna uses distributed
Antenna system, distributing antenna system uses slot antenna, and distributing antenna system contains 1～n sheet circular arc ripple
Lead 501, horizontal gap 502 and vertical clearance gap 503 inside every circular arc waveguide 501, be distributed, described horizontal gap 502 and hanging down
Straight slot 503 is omnidirectional distribution, collectively forms waveguide broadside seam antenna, every circular arc waveguide respectively with corresponding GaN power
Amplifier tube 404 docks.
Embodiment 3
Seeing Fig. 6, Fig. 5, the microwave power source of the present embodiment, as different from Example 1, distributing antenna system uses 1～n
Spiral arm flat helical antenna, described flat helical antenna 604 plane is multiple by equiangular spiral part 601 and Archimedian screw 602
Close and constitute；Being correspondingly provided with 1～n droplet-shaped distributing point 603 in the middle part of antenna plane, distributing point is by impedance transformer 605 respectively
Docking with corresponding GaN power amplifier tube 404, flat helical antenna 604 back is provided with parabolic 606.
Embodiment 4
Seeing Fig. 6, solid state microwave stove of the present invention, including bell, body of heater and microwave power source and control system, described microwave merit
Rate source uses solid semiconductor element GaN power amplifier tube to be amplified microwave signal source, and described microwave power source is by signal
Source 401, prime amplifier 402, power divider 403,1～n road GaN power amplifier tube 404 and power divider balanced load
405 compositions, described signal source 401 is by PLL(phaselocked loop) and VCO(voltage controlled oscillator) constitute local oscillation circuit, signal source 401
The microwave signal produced is enlarged into low power microwave signal through prime amplifier 402, then is assigned as 1 through power divider 403
1～the n road HIGH-POWERED MICROWAVES～n road microwave signal delivers to GaN power amplifier tube 404 and carry out power amplification, after amplifying
Signal connects microwave transmitting antenna by RF output module 406, and feeding HIGH-POWERED MICROWAVES signal to body of heater inner chamber 407, for heating
Food uses.Described n is natural number.RF output module 406 can be waveguide assembly, or is coaxial cable transmission line.
Embodiment 5
See Fig. 4 a, Fig. 4 b, Fig. 4 c and Fig. 6.The solid state microwave stove of the present embodiment, is with the difference of embodiment 4: micro-
Ripple is launched antenna and is used distributing antenna system, and described distributing antenna system uses slot antenna, in body of heater
The outer rim uniform 1～n sheet circular arc waveguide 501 of gallbladder 505, is distributed horizontal gap 502 and hangs down inside every circular arc waveguide 501
Straight slot 503, described horizontal gap 502 and vertical clearance gap 503 are omnidirectional distribution, collectively form waveguide broadside seam antenna, often
Have for the aerial head 506 of microwave coupling and for the coaxial cable docked with microwave power source 304 inside sheet circular arc waveguide
Joint 504.
Embodiment 6
See Fig. 5 a, Fig. 5 b, Fig. 5 c and Fig. 6.The solid state microwave stove of the present embodiment, is with the difference of embodiment 4: micro-
Ripple is launched antenna and is used distributing antenna system, and described distributing antenna system uses 1～n spiral arm flat helical antenna, described
Flat helical antenna 604 is placed in the lower section of body of heater inner bag, and antenna plane is by equiangular spiral part 601 and Archimedian screw 602
Compound composition；Being correspondingly provided with 1～n droplet-shaped distributing point 603 in the middle part of antenna plane, distributing point is become through back of the body cavity segment by impedance
Parallel operation 605 is connected with coaxial fitting 607, is provided with parabolic 606 in back of the body intracavity portion.
Embodiment 7
See Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d.The solid state microwave stove of the present embodiment, exists with the difference of foregoing embodiments
In: body of heater uses cylinder, and upper end is furnace upper cover 301, and body of heater inner bag includes upper inner-liner 318 and bottom inner container 319, upper inner-liner
318 are arranged in furnace upper cover 301, and upper inner-liner 318 and bottom inner container 319 are collectively forming cylindrical microwave resonant operational cavity, stove
Body upper cover 301 is hinged with cylindrical furnace 303 and is provided with fixed agraffe 302, furnace upper cover 301 and the knot of body of heater bottom inner container 319
Conjunction part is provided with electromagnet apparatus 320, and electromagnet apparatus 320 links with fixed agraffe 302.
The heating chamber that body of heater upper inner-liner 318 is formed with bottom inner container 319, can place subsidiary working lunch and hold adnexa.Work
Time locking upper cover 301 and body of heater bottom inner container 319.When fixed agraffe 302 fastens, microswitch is connected, and electromagnet apparatus 320 is inhaled
Close, by body of heater 303 top and the body of heater bottom inner container 319 tight adhesive of bound fraction, prevent microwave from leaking, ensure and use human body peace
Entirely.When 302 open, microswitch disconnects, and electromagnet apparatus 320 discharges, and now can open bell 301, takes out heating thing
Product.
Bottom of furnace body is provided with base 306, the built-in power supply part of base of furnace body 306 and microwave power source, microwave power source 304
Being placed on power supply part, power supply part provides the running voltage of 0-50V to GaN microwave power source and provides for control system
12V, 5V, 3.3V direct-current working volts；Base of furnace body 306 upper surface is provided with or therefrom draws and described GaN microwave power source
(304) 1～n the microwave coaxial cable out splice going splice 305 connected.
Furnace upper cover 301 is outside be provided with display heat time heating time and duty and the LCD screen of battery dump energy information or
It is charactron 316 and function button 315；Temperature sensor 317 built-in IR temperature unit (Fig. 6 it is provided with in furnace upper cover 301
Middle label 416), described IR temperature unit 416 is encapsulated by infrared thermopile induction apparatus and Signal Regulation chip portfolio and forms, output
Digital signal is for the MCU process of control system (label 414 in Fig. 6), and control system 414 is by regulating the variable capacitance of VCO
Regulate the operating frequency of local oscillation circuit in the range of 2450 ± 50MHz, by power supply part to 1～n road GaN power
Amplifier tube provides 0-50V running voltage, and is changed by the regulation of running voltage, controls the output of GaN power amplifier tube.
Solid state microwave stove of the present invention, owing to have employed the GaN(gallium nitride of low voltage operating) microwave power source, therefore power
Parts can use civil power input to be converted into direct current, or uses set of cells 409 to power, and adds ease of use.In Fig. 6,
Civil power input module 408 can connect direct current DC output module 413, it is also possible to fills to set of cells 409 by charger module 412
Electricity.Battery module 409, charging-discharging controller 410 and solar panel 411 are optional part.Solar panel 411 can
Power to set of cells 409 by charging-discharging controller 410.Power pack will give GaN(gallium nitride respectively) microwave power source carries
For the running voltage of 0-50V and provide required 12V, 5V, 3.3V direct-current working volts to control system 411.
Solid state microwave stove of the present invention, constitutes heating chamber, pin owing to employing the spaced antenna structure without moving component
Traditional microwave magnetron stove is needed the parts such as the microwave stirrer with compound movement parts and rotating disk, enormously simplify micro-
Ripple furnace structure.Than using LDMOS microwave power part efficiency to improve about 10%, power density improves 3-4 times.Simple in construction, space
Utilization rate is high, and efficiency is high.
Claims (9)
1. a solid state microwave power source, including signal source (401), prime amplifier (402), power divider (403) and merit
Rate allotter balanced load (405), Microwave Power Module, it is characterised in that: described Microwave Power Module uses 1～n road solid-state
Microwave source signal is amplified by semiconductor element GaN power amplifier tube, and described signal source (401) is constituted this locality by PLL and VCO
Oscillating circuit, the microwave signal that signal source (401) produces is enlarged into low power microwave signal through prime amplifier (402), then
It is assigned as 1～n road microwave signal through power divider (403) to deliver to GaN power amplifier tube (404) and carry out power amplification, warp
Crossing 1～n road HIGH-POWERED MICROWAVES signal after amplifying and connect microwave transmitting antenna by RF output module (406), described n is certainly
So number.
Solid state microwave power source the most according to claim 1, it is characterised in that: microwave transmitting antenna uses spaced antenna
System, distributing antenna system uses slot antenna, and distributing antenna system contains 1～n sheet circular arc waveguide
(501), every circular arc waveguide (501) inner side is distributed horizontal gap (502) and vertical clearance gap (503), described horizontal gap
And vertical clearance gap (503) is omnidirectional distribution (502), collectively forming waveguide broadside seam antenna, every circular arc waveguide is respectively with right
GaN power amplifier tube (404) docking answered.
Solid state microwave power source the most according to claim 1, it is characterised in that: distributing antenna system uses 1～n spiral arm
Flat helical antenna, described flat helical antenna (604) plane is by equiangular spiral part (601) and Archimedian screw (602)
Compound composition；Being correspondingly provided with 1～n droplet-shaped distributing point (603) in the middle part of antenna plane, distributing point passes through impedance transformer
(605) docking with corresponding GaN power amplifier tube (404) respectively, flat helical antenna (604) back is provided with parabolic
(606).
4. a solid state microwave stove, including bell, body of heater and microwave control system, it is characterised in that: described microwave power source
By signal source (401), prime amplifier (402), power divider (403), 1～n road GaN power amplifier tube (404) and power
Allotter balanced load (405) composition, described signal source (401) is made up of local oscillation circuit, signal source (401) PLL and VCO
The microwave signal produced is enlarged into low power microwave signal through prime amplifier (402), then distributes through power divider (403)
Being that 1～n road microwave signal is delivered to GaN power amplifier tube (404) and carried out power amplification, 1～n road after amplifying is high-power
Microwave signal connects microwave transmitting antenna by RF output module (406), and feeding HIGH-POWERED MICROWAVES signal is to body of heater inner chamber
(407), n is natural number.
Solid state microwave stove the most according to claim 4, it is characterised in that: microwave transmitting antenna uses spaced antenna system
System, described distributing antenna system uses slot antenna, the outer rim uniform 1～n sheet circular arc ripple at body of heater inner bag
Leading (501), every circular arc waveguide (501) inner side is distributed horizontal gap (502) and vertical clearance gap (503), described horizontal joint
Gap (502) and vertical clearance gap (503) are omnidirectional distribution, collectively form waveguide broadside seam antenna, inside every circular arc waveguide
There is the aerial head for microwave coupling (506) and for the coaxial fitting (504) docked with microwave power source (304).
Solid state microwave stove the most according to claim 4, it is characterised in that: microwave transmitting antenna uses spaced antenna system
System, described distributing antenna system uses 1～n spiral arm flat helical antenna, and described flat helical antenna (604) is placed in body of heater
The lower section of gallbladder, antenna plane is constituted by equiangular spiral part (601) and Archimedian screw (602) are compound；In the middle part of antenna plane
Be correspondingly provided with 1～n droplet-shaped distributing point (603), distributing point through back of the body cavity segment by impedance transformer (605) and coaxial fitting
(607) it is connected, is provided with parabolic (606) in back of the body intracavity portion.
7. according to the solid state microwave stove described in claim 4,5 or 6, it is characterised in that: body of heater uses cylinder, and upper end is body of heater
Upper cover (301), body of heater inner bag includes upper inner-liner (318) and bottom inner container (319), and upper inner-liner (318) is arranged at furnace upper cover (301)
In, described upper inner-liner (318) and bottom inner container (319) are collectively forming cylindrical microwave resonant operational cavity, furnace upper cover (301) with
Cylindrical furnace (303) is hinged and is provided with fixed agraffe (302), the joint portion of furnace upper cover (301) and body of heater bottom inner container (319)
Being arranged with electromagnet apparatus (320), electromagnet apparatus (320) links with fixed agraffe (302).
Solid state microwave stove the most according to claim 7, it is characterised in that: bottom of furnace body is provided with base (306), described base
(306) built-in power supply part and microwave power source, microwave power source (304) is placed on power supply part, and power supply part is micro-to GaN
Wave power source provides the running voltage of 0-50V and provides 12V, 5V, 3.3V direct-current working volts for control system；Described base
(306) upper surface is provided with or therefrom draws defeated with 1～n the microwave coaxial cable that described solid state microwave power source (304) is connected
Go out joint (305).
Solid state microwave stove the most according to claim 8, it is characterised in that: furnace upper cover (301) outside is provided with display and adds
Heat time and duty and the LCD screen of battery dump energy information or charactron (316) and function button (315)；
Be provided with temperature sensor (317) built-in IR temperature unit (416) in furnace upper cover (301), described IR temperature unit (416) by
Infrared thermopile induction apparatus and the encapsulation of Signal Regulation chip portfolio form, and output digit signals is for the MCU process of control system, control
System processed regulates the operating frequency of local oscillation circuit in 2450 ± 50MHz scope by the variable capacitance of regulation VCO
In, and control power supply part and provide 0-50V running voltage to 1～n road GaN power amplifier tube, and by the regulation of running voltage
Change, controls the output of GaN power amplifier tube.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696958A (en) * | 2018-07-24 | 2018-10-23 | 电子科技大学 | A kind of double source double frequency micro-wave oven |
| CN109451619A (en) * | 2018-12-29 | 2019-03-08 | 京信通信系统（中国）有限公司 | A kind of control method of solid state microwave power source and microwave heating equipment |
| CN110115497A (en) * | 2018-12-17 | 2019-08-13 | 四川大学 | A kind of stereoscopic microwave heating electric rice cooker pot body |
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| US10952289B2 (en) | 2018-09-10 | 2021-03-16 | Nxp Usa, Inc. | Defrosting apparatus with mass estimation and methods of operation thereof |
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| WO2021136272A1 (en) * | 2019-12-31 | 2021-07-08 | 广东美的厨房电器制造有限公司 | Microwave cooking apparatus and control device therefor |
| US11166352B2 (en) | 2018-12-19 | 2021-11-02 | Nxp Usa, Inc. | Method for performing a defrosting operation using a defrosting apparatus |
| US11382190B2 (en) | 2017-12-20 | 2022-07-05 | Nxp Usa, Inc. | Defrosting apparatus and methods of operation thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2512819A (en) * | 2013-03-18 | 2014-10-15 | Wayv Technologies Ltd | Microwave heating apparatus |
| CN104676670A (en) * | 2014-05-28 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Semiconductor microwave oven and semiconductor microwave source thereof |
| CN205017622U (en) * | 2015-07-24 | 2016-02-03 | 石铁峰 | Microwave -generating device and microwave heating equipment |
| CN105423366A (en) * | 2015-12-29 | 2016-03-23 | 京信通信技术(广州)有限公司 | Microwave output power control device and method |
| CN105492831A (en) * | 2013-08-29 | 2016-04-13 | 飞思卡尔半导体公司 | Integrated solid state microwave power generation modules |
| CN205919380U (en) * | 2016-08-25 | 2017-02-01 | 陈鹏 | Solid -state microwave power source and adopt this solid state microwave power source's solid -state microwave oven |
-
2016
- 2016-08-25 CN CN201610717223.9A patent/CN106225029A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2512819A (en) * | 2013-03-18 | 2014-10-15 | Wayv Technologies Ltd | Microwave heating apparatus |
| CN105492831A (en) * | 2013-08-29 | 2016-04-13 | 飞思卡尔半导体公司 | Integrated solid state microwave power generation modules |
| CN104676670A (en) * | 2014-05-28 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Semiconductor microwave oven and semiconductor microwave source thereof |
| CN205017622U (en) * | 2015-07-24 | 2016-02-03 | 石铁峰 | Microwave -generating device and microwave heating equipment |
| CN105423366A (en) * | 2015-12-29 | 2016-03-23 | 京信通信技术(广州)有限公司 | Microwave output power control device and method |
| CN205919380U (en) * | 2016-08-25 | 2017-02-01 | 陈鹏 | Solid -state microwave power source and adopt this solid state microwave power source's solid -state microwave oven |
Non-Patent Citations (2)
| Title |
|---|
| 无: "世界最小便携固态微波罐即将诞生", 《电子产品世界》 * |
| 李松洁: "《电子元器件应用技术》", 30 June 2009, 北京：航空工业出版社 * |
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| CN108696958B (en) * | 2018-07-24 | 2024-03-19 | 电子科技大学 | Dual-source dual-frequency microwave oven |
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Application publication date: 20161214 |