CN109963369A - Dual magnetron household microwave oven - Google Patents
Dual magnetron household microwave oven Download PDFInfo
- Publication number
- CN109963369A CN109963369A CN201910250668.4A CN201910250668A CN109963369A CN 109963369 A CN109963369 A CN 109963369A CN 201910250668 A CN201910250668 A CN 201910250668A CN 109963369 A CN109963369 A CN 109963369A
- Authority
- CN
- China
- Prior art keywords
- magnetron
- microwave
- magnetrons
- furnace
- furnace body
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
-
- 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
- H05B6/70—Feed lines
- H05B6/707—Feed lines using waveguides
-
- 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
- H05B2206/044—Microwave heating devices provided with two or more magnetrons or microwave sources of other kind
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Include furnace body, including furnace body the invention discloses one kind, offer furnace chamber on furnace body, magnetron is installed in furnace body wall, magnetron is imported the microwave of generation in furnace chamber by waveguide, which is characterized in that the quantity of magnetron is two, and is 12 chamber magnetrons；The power of two magnetrons is 400~650w, and frequency is 2430MHz~2460MHz；The frequency difference of two magnetrons is 10~50MHz；Two magnetrons pass through control switch and connect with power module.This programme heats the food in micro-wave oven using the different low-power magnetron of two frequencies, can generate big interfere with each other to avoid the microwave information of two magnetrons.Since two frequencies are inconsistent, reflection angle of the microwave of each magnetron in microwave cavity body is entirely different, this makes microwave be more evenly distributed in furnace chamber, and reaches in food molecular oscillation frequency difference, this will greatly improve the uniformity of heating food.
Description
Technical field
The present invention relates to the devices of heating food, and in particular to a kind of dual magnetron household microwave oven.
Background technique
People generally use micro-wave oven and carry out rapid heating of foods at present, and the principle of microwave oven heating food is to pass through magnetron
Electric energy is transformed into high-frequency microwave and is transmitted to furnace chamber, the positive negative charged particles in the food molecule in furnace chamber are with electromagnetic field of high frequency
Change and constantly does concussion movement back and forth.Quickly collided between particle, rubbing generates a large amount of thermal energy, so that food reaches quick
The effect of heating.The high-frequency microwave that magnetron generates directly passes through waveguide and is sent in furnace chamber, and microwave is uneven in furnace chamber
Distribution, this results in food each section rate of heat addition difference occur, causes heating effect undesirable.
Most traditional micro-wave oven is rotating disc type microwave oven, and by adding a dial portion in furnace chamber, to solve food each
Motor is installed below to drive rotation in the non-uniform problem of portions under heat, turntable.But during using micro-wave oven, inevitably go out
The case where existing water, the liquid such as grease leak out container, if motor transmission shaft leakproofness is inadequate, these liquid will leak into user without
In the micro-wave oven outer metal housing and furnace chamber gap of method cleaning, and motor service life and reliability can be reduced.On the other hand, by
Be in turntable it is very low, the gap of turntable and furnace cavity bottom is easy the grease stain residue generated when residual heating food, it is extremely difficult to clean.
At present be widely used the Flat-plate microwave oven for directly heating food on the market, Flat-plate microwave oven cooking cavity into
Near at mouthful, there is a rotatable blender to have after rotating to microwave because blender is the metal of fan-shaped
The reflection of all directions increases heating food with this method so microwave energy can be evenly distributed in cooking cavity
Uniformity.But heat foods even results are still undesirable.
Summary of the invention
It, can be the present invention provides a kind of dual magnetron household microwave oven for above-mentioned deficiency in the prior art
Food is evenly heated in the case where turntable is not added.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:
There is provided a kind of dual magnetron household microwave oven comprising furnace body offers furnace chamber on furnace body, is equipped in furnace body wall
Magnetron, magnetron are imported the microwave of generation in furnace chamber by waveguide, and the quantity of magnetron is two, and are 12 chamber magnetic controls
Pipe；The power of two magnetrons is 400~650w, and frequency is 2430MHz~2460MHz；The frequency difference of two magnetrons is
10~50MHz；Two magnetrons pass through control switch and connect with power module.
Further, two magnetrons are mounted in the left side wall or right side wall of furnace body simultaneously, and waveguide is L-type waveguide, and two
The microwave of magnetron passes through a L-type waveguide respectively and is sent into furnace chamber from the microwave delivery outlet of furnace body bottom wall, two microwaves
Delivery outlet does not contact.
Further, two magnetrons are separately mounted in the left side wall and right side wall of furnace body, and the waveguide is L-type waveguide,
The microwave of two magnetrons passes through a L-type waveguide respectively and is sent into furnace chamber from the microwave delivery outlet of furnace body bottom wall,
Two microwave delivery outlets do not contact.
Further, two magnetrons are mounted in the left side wall or right side wall of furnace body simultaneously, and one of waveguide is L-type wave
It leads, another is straight wave guide；The microwave of one magnetron is sent into furnace from the microwave delivery outlet of furnace body bottom wall by L-type waveguide
It is intracavitary；The microwave of another magnetron is sent into furnace chamber by straight wave guide from the microwave delivery outlet on sidewall of the furnace body.
Further, the quantity of control switch is two, and each magnetron passes through an independent control switch and power supply mould
Block connection.
Further, the anode current of magnetron is 250~400mA or so, 2.35~2.45KV of anode voltage.
Further, the inside radius of the big commissure ring of magnetron, outer radius, it is high be respectively 8.95~9.1mm, 9.6~
9.7mm, 1.30~1.35mm；The inside radius of the small commissure ring of magnetron, outer radius, it is high be respectively 7.1~7.2mm, 7.9~
8.0mm, 1.45~1.55mm.
Further, the power of two magnetrons is unequal.
Beneficial effects of the present invention: this programme is using the different low-power magnetron of two frequencies to the food in micro-wave oven
It is heated, big interfere with each other can be generated to avoid the microwave information of two magnetrons.Since two frequencies are inconsistent, each
Reflection angle of the microwave of magnetron in microwave cavity body is entirely different, this is distributed microwave in furnace chamber more
It is even, and reach in food molecular oscillation frequency difference, this will greatly improve the uniformity of heating food.
This programme does not need installation turntable after using two magnetrons, easy to clean；The power of each magnetron is close
The half of household effective power 1300w, so that magnetron reliability is higher；Magnetic control in the existing micro-wave oven of the power ratio of magnetron
The power of pipe is reduced, so that its volume is smaller, heat dissipation is easier, and micro-wave oven will not break down or damage because of overheat.
The space layout for making micro-wave oven is become more flexible by magnetron characteristic small in size, has more shape-designing schemes, more
Client is readily satisfied to the various demands in space.
Detailed description of the invention
Fig. 1 is only one microwave magnetron furnace structure schematic diagram in the prior art.
Fig. 2 is that two magnetrons of the dual magnetron household microwave oven of this programme are mounted on the same side, and two magnetrons
The structure diagram being connect with a L-type waveguide.
Fig. 3 is that two magnetrons of the dual magnetron household microwave oven of this programme are mounted on the same side, one of magnetic control
The structure diagram of Guan Yuyi L-type waveguide connection.
Fig. 4 conventional household microwaves furnace microwave reflection schematic diagram.
Fig. 5 is that the microwave delivery outlet of two magnetrons of this programme is located at the dual magnetron domestic microwave ipsilateral, frequency is different
The microwave reflection schematic diagram of furnace.
Fig. 6 is that be located at dual magnetron household not ipsilateral, that frequency is different micro- for the microwave delivery outlet of two magnetrons of this programme
The microwave reflection schematic diagram of wave furnace.
Fig. 7 is the structure chart of ten chamber magnetrons in the prior art.
Fig. 8 is the structure chart of the 12 chamber magnetrons of position this programme.
Fig. 9 is the field distribution functional image of plane where food in existing Flat-plate microwave oven furnace chamber.
Figure 10 is that the microwave delivery outlet of two magnetrons of this programme (power is 650W) is located at pairs ipsilateral, that frequency is different
The field distribution functional image of plane where food in the furnace chamber of magnetron household microwave oven.
Figure 11 is the microwave delivery outlet of two magnetrons of this programme (power is 450W) positioned at not ipsilateral, frequency is different
The field distribution functional image of plane where food in the furnace chamber of dual magnetron household microwave oven.
Figure 12 is that the microwave delivery outlet of two magnetrons of this programme (power is 450W) is located at pairs ipsilateral, that frequency is different
The field distribution functional image of plane where food in the furnace chamber of magnetron household microwave oven.
Wherein, 1, furnace body；2, furnace chamber；3, magnetron；31, big commissure ring；32, small commissure ring；33, cathode；34, anode；
4, L-type waveguide；5, straight wave guide.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
Magnetron 3 is made of an anode 34 and cathode 33, its working principle is that:
The electron stream that cathode 33 is launched during the work time obtains kinetic energy in external DC electric field, then by kinetic energy
A part is converted into the alternating electric field of oscillation system, the position of such electronics can just bit by bit given high frequency field, during which shake
The system of swinging needs to maintain stable oscillation, and oscillation system goes out microwave by antenna coupling firing.
As shown in Figures 2 and 3, the dual magnetron household microwave oven that this programme provides includes furnace body 1, is offered on furnace body 1
Furnace chamber 2 is equipped with magnetron 3 in furnace body wall, and magnetron 3 is imported the microwave of generation in furnace chamber 2 by waveguide, magnetron 3
Quantity is two, and is 12 chamber magnetrons 3；The power of two magnetrons 3 be 400~650w, frequency be 2430MHz~
2460MHz；The frequency difference of two magnetrons 3 is 10~50MHz；Two magnetrons 3 pass through control switch and power module
Connection.
The 12 chamber magnetrons 3 of this programme compared with the prior art in ten chamber magnetrons 3 for, in cathode 33 and anode
There is different degrees of reduction on 34 radiuses, can be changed by the distance or height that change big commissure ring 31 and small commissure ring 32
Become the resonance frequency of magnetron 3.
When implementation, the inside radius of the big commissure ring 31 of the preferred magnetron 3 of this programme, outer radius, it is high be respectively 8.95~
9.1mm, 9.6~9.7mm, 1.30~1.35mm；Inside radius, outer radius, the height of the small commissure ring 32 of magnetron 3 are respectively 7.1
~7.2mm, 7.9~8.0mm, 1.45~1.55mm；Below with 1 specific size example of table to big commissure ring 31 and big commissure ring 31
Inside and outside radius is illustrated with height and the frequency of magnetron 3:
Table 1 is the different sizes of magnetron 3 table corresponding with 3 frequency of magnetron
As it can be seen from table 1 increasing when to some size in big commissure ring 31 and the inside and outside radius of big commissure ring 31 and height
Greatly/reduce when so that the frequency of magnetron 3 can also increase with it/reduce.
As shown in Fig. 2, this programme preferably two magnetrons 3 are mounted on the left side wall or right side wall of furnace body 1 simultaneously when implementing
Interior, waveguide is L-type waveguide 4, and the microwave of two magnetrons 3 transmitting passes through microwave of the L-type waveguide 4 from 1 bottom wall of furnace body respectively
Delivery outlet is sent into furnace chamber 2, and two microwave delivery outlets do not contact.This kind of structure micro-wave oven is in use, its microwave reflection situation can
Referring to Fig. 5.
When implementation, two magnetrons 3 of this programme can also be separately mounted in the left side wall and right side wall of furnace body 1, wave
It leads as L-type waveguide 4, the microwave that two magnetrons 3 emit passes through microwave delivery outlet of the L-type waveguide 4 from 1 bottom wall of furnace body respectively
It is sent into furnace chamber 2, two microwave delivery outlets do not contact.This kind of structure micro-wave oven is in use, its microwave reflection situation may refer to
Fig. 6.
As shown in figure 3, this programme preferably two magnetrons 3 are mounted on the left side wall or right side wall of furnace body 1 simultaneously when implementing
Interior, one of waveguide is L-type waveguide 4, another is straight wave guide 5；One magnetron 3 transmitting microwave by L-type waveguide 4 from
The microwave delivery outlet of 1 bottom wall of furnace body is sent into furnace chamber 2；The microwave of another magnetron 3 transmitting passes through straight wave guide 5 from 1 side of furnace body
Microwave delivery outlet on wall is sent into furnace chamber 2.
Wherein, the quantity of control switch is two, and each magnetron 3 passes through an independent control switch and power module
Connection.After control switch is set as two, user can need to open magnetic according to the temperature of heating food, thickness, amount selection
The number of keyholed back plate 3, to achieve the purpose that using electricity wisely.
When implementation, two control switches can be set micro-wave oven (this programme provide micro-wave oven, in addition to do not have turntable and
The flat plate microwave oven of its 3 installation place structure of magnetron and the prior art has differences outer, the installation of shape and control panel
Position is identical as flat plate microwave oven in the prior art) control panel on, when only pressing one of control switch, with
The microwave of its corresponding magnetron 3 feed-in one certain power and frequency into furnace chamber 2.Two control switches are pressed when simultaneously
Afterwards, two magnetrons 3 simultaneously into furnace chamber 2 feed-in respectively power and frequency microwave, two power are folded in furnace chamber 2
Add, substantially increases heating efficiency；And the microwave of two different frequencies can promote the homogeneous heating of food in 2 internal reflection of furnace chamber
Property.
Wherein, 34 electric current of anode of magnetron 3 is 250~400mA or so, 34 2.35~2.45KV of voltage of anode；We
The power of two magnetrons 3 in case also can choose unequal.
Below with 3 domestic microwave furnace chamber of the dual magnetron of this programme, 2 body structure, working frequency, power and the effect reached
It is illustrated:
Embodiment 1
As shown in Figure 1, the magnetron 3 of flat plate microwave oven in the prior art generally uses 34 voltage of 4.2KV anode, work
Working frequency is 2.45GHz, microwave power 900W, uses magnetron 3 for ten chamber magnetrons 3, as shown in fig. 7, micro-wave oven
Microwave reflection situation may refer to Fig. 4.
And in order to obtain lower 34 voltage of anode (about 2.4KV), while guaranteeing higher power output, this programme is adopted
Magnetron 3 is 12 chamber magnetrons 3, as shown in figure 8, the increase of 3 resonant cavity number of magnetron advantageously reduces work electricity
Pressure, and operating magnetic field flux density can be reduced.
3 household microwave oven of dual magnetron of the present embodiment is worked together by two independent magnetrons 3 and generates microwave, is such as schemed
Shown in 2, the power that magnetron 3X generates microwave is 650W (34 electric current 350mA of anode or so, 34 voltage 2.43KV of anode or so),
Frequency is 2450MHz, and magnetron X is coupled with L-type waveguide 4, inputs microwave from the microwave delivery outlet of bottom.
The power that magnetron 3Y generates microwave is 650W, and frequency 2440MHz, magnetron 3Y are coupled with L-type waveguide 4,
Bottom input microwave.Magnetron 3X is identical with the power that magnetron 3Y is generated, and frequency phase-difference 10MHz, microwave delivery outlet is apart
100mm。
As magnetron 3X and magnetron 3Y cooperating, one side microwave can increase cavity from bottom input furnace chamber 2
The uniformity of internal energy distribution.Another aspect microwave encounters 2 wall of metal furnace chamber simultaneously after being fed into furnace chamber 2 through overcoupling
It constantly reflects, so that microwave in furnace chamber 2 is produced more superpositions and is intersected with the reflection of more perspective more times, this will
There is the microwave of more roundtrips from different directions by food absorption, final heating will be more uniform, so that heating time is substantially
Shorten.It is modeled in simulation software by the micro-wave oven in the micro-wave oven and this programme embodiment to 900W in the prior art,
Simulation result is shown in Fig. 9, Figure 10 respectively, shows that uniformity and heating efficiency of the invention are more preferable by analogous diagram.
It is tested by experiment, with existing household microwave oven power 900W, frequency 2450MHz heating is placed on same location
Steamed bun comparison, food reach it is identical nominally, this programme is with two 650W and 3 microwave of magnetron of different frequency
Furnace heats food, and steamed bun internal temperature is more uniform, and cold lump is less, simultaneously because the promotion of superposition power, adds
The time of hot food saves one third, so that efficiency is significantly promoted.
Embodiment 2
As shown in Figure 1, the magnetron 3 of flat plate microwave oven in the prior art generally uses 34 voltage of 4.2KV anode, work
Working frequency is 2.45GHz, microwave power 900W, uses magnetron 3 for ten chamber magnetrons 3, as shown in Figure 7.
And in order to obtain lower 34 voltage of anode (about 2.4KV), while guaranteeing higher power output, this programme is adopted
Magnetron 3 is 12 chamber magnetrons 3, as shown in figure 8, the increase of 3 resonant cavity number of magnetron advantageously reduces work electricity
Pressure, and operating magnetic field flux density can be reduced.
3 household microwave oven of dual magnetron of the present embodiment is worked together by two independent magnetrons 3 and generates microwave, is such as schemed
Shown in 3,3 household microwave oven of dual magnetron of the present embodiment is worked together by two independent magnetrons 3 generates microwave, magnetron
The power that 3X generates microwave is 450W (34 electric current 300mA of anode or so, 34 voltage 2.4KV of anode or so), and frequency is
2455MHz, magnetron X are coupled with L-type waveguide 4, input microwave from the microwave delivery outlet of bottom.
The power that magnetron Y generates microwave is 450W (34 electric current 300mA of anode or so, 34 voltage 2.4KV of anode or so),
Frequency is 2435MHz, and magnetron 3 is coupled with straight wave guide 5, the microwave of (micro-wave oven is seen in front) on the right side of micro-wave oven interaction cavity
Delivery outlet inputs microwave.Magnetron X is identical with the power that magnetron Y is generated, frequency phase-difference 20MHz.
As magnetron X and magnetron Y cooperating, two magnetrons 3 generate microwave from two different directions into
Enter in furnace chamber 2, microwave encounters metal furnaces cavity wall and constantly reflects after being fed into furnace chamber 2 through overcoupling, more times and
The reflection of more perspective makes in furnace chamber 2 microwave produce more superpositions and intersect, this will have it is more from different directions back and forth
For the microwave of reflection by food absorption, final heating will be more uniform.By flat plate microwave oven to 900W in the prior art with
Micro-wave oven in this programme embodiment models in simulation software, and simulation result is shown in Fig. 9, Figure 11 respectively, aobvious by analogous diagram
Show that uniformity of the invention is more preferable.
Plate after the superposition of 3 microwave power of magnetron of two 450W of this programme and different frequency with existing power 900W
The power that type micro-wave furnace is compared is identical, is tested by experiment, and heating is placed on the steamed bun of same location, reaches identical in food
Nominally, the two time is almost the same, but this programme steamed bun internal temperature is more uniform, and cold lump is less.
Embodiment 3
As shown in Figure 1, the magnetron 3 of flat plate microwave oven in the prior art generally uses 34 voltage of 4.2KV anode, work
Working frequency is 2.45GHz, microwave power 900W, uses magnetron 3 for ten chamber magnetrons 3, as shown in Figure 7.
And in order to obtain lower 34 voltage of anode (about 2.4KV), while guaranteeing higher power output, this programme is adopted
Magnetron 3 is 12 chamber magnetrons 3, as shown in figure 8, the increase of 3 resonant cavity number of magnetron advantageously reduces work electricity
Pressure, and operating magnetic field flux density can be reduced.
3 household microwave oven of dual magnetron of the present embodiment is worked together by two independent magnetrons 3 and generates microwave, is such as schemed
Shown in 2, the dual magnetron household microwave oven of the present embodiment is worked together by two independent magnetrons 3 generates microwave, magnetron X
Generate microwave power be 450W (34 electric current 300mA of anode or so, 34 voltage 2.4KV of anode or so), frequency 2455MHz,
The power that magnetron Y generates microwave is 450W (34 electric current 300mA of anode or so, 34 voltage 2.4KV of anode or so), and frequency is
2435MHz, magnetron X is identical with the power that magnetron Y is generated, and both couples with L-type waveguide 4, exports from bottom microwave
Mouth input microwave.
As magnetron X and magnetron Y cooperating, two magnetrons 3 generate microwave from two different directions into
Enter in furnace chamber 2, microwave encounters metal furnaces cavity wall and constantly reflects after being fed into furnace chamber 2 through overcoupling, more times and
The reflection of more perspective makes in furnace chamber 2 microwave produce more superpositions and intersect, this will have it is more from different directions back and forth
For the microwave of reflection by food absorption, final heating will be more uniform.By flat plate microwave oven to 900W in the prior art with
Micro-wave oven in this programme embodiment models in simulation software, and simulation result is shown in Fig. 9, Figure 11 respectively, aobvious by analogous diagram
Show that the uniformity of this programme is more preferable.
Plate after the superposition of 3 microwave power of magnetron of two 450W of this programme and different frequency with existing power 900W
The power that type micro-wave furnace is compared is identical, is tested by experiment, and heating is placed on the steamed bun of same location, reaches identical in food
Nominally, the two time is almost the same, but this programme steamed bun internal temperature is more uniform, and cold lump is less.
In addition, the present embodiment is compared with embodiment 2, only the position of two microwave delivery outlets is not identical, other parameters
Configure it is all the same, from simulation result Figure 11 and Figure 12 can be seen that when two magnetrons 3 from the microwave delivery outlet of same bottom
When feeding, microwave is more evenly distributed in furnace chamber；Heating is placed on the steamed bun of same location, reaches identical standard feelings in food
Under condition, the present embodiment steamed bun internal temperature is more more uniform than embodiment 2, and cold lump is less.
In conclusion magnetron 3 of the micro-wave oven of this programme by two different frequencies of setting, so that each magnetron
The microwave of 3 transmittings is entirely different in the intracorporal reflection angle of microwave cavity 2, so that microwave is more evenly distributed in furnace chamber 2, thus
Reach the heating better purpose of food uniformity.
Claims (8)
1. dual magnetron household microwave oven, including furnace body, furnace chamber is offered on the furnace body, magnetic control is installed in the furnace body wall
Pipe, the magnetron are imported the microwave of generation in furnace chamber by waveguide, which is characterized in that the quantity of the magnetron is two
It is a, and be 12 chamber magnetrons；The power of two magnetrons is 400~650w, and frequency is 2430MHz~2460MHz；Two magnetic
The frequency difference of keyholed back plate is 10~50MHz；Two magnetrons pass through control switch and connect with power module.
2. dual magnetron household microwave oven according to claim 1, which is characterized in that two magnetrons are mounted on furnace simultaneously
In the left side wall or right side wall of body, the waveguide is L-type waveguide, and the microwave of two magnetrons passes through a L respectively
Type waveguide is sent into furnace chamber from the microwave delivery outlet of furnace body bottom wall, and two microwave delivery outlets do not contact.
3. dual magnetron household microwave oven according to claim 1, which is characterized in that two magnetrons are separately mounted to furnace
In the left side wall and right side wall of body, the waveguide is L-type waveguide, and the microwave of two magnetrons passes through a L respectively
Type waveguide is sent into furnace chamber from the microwave delivery outlet of furnace body bottom wall, and two microwave delivery outlets do not contact.
4. dual magnetron household microwave oven according to claim 1, which is characterized in that two magnetrons are mounted on furnace simultaneously
In the left side wall or right side wall of body, one of waveguide is L-type waveguide, another is straight wave guide；One magnetron it is micro-
Wave is sent into furnace chamber by L-type waveguide from the microwave delivery outlet of furnace body bottom wall；The microwave of another magnetron passes through straight wave
It leads from the microwave delivery outlet on sidewall of the furnace body and is sent into furnace chamber.
5. dual magnetron household microwave oven according to claim 1 to 4, which is characterized in that the number of the control switch
Amount is two, and each magnetron is connect by an independent control switch with the power module.
6. dual magnetron household microwave oven according to claim 1, which is characterized in that the anode current of the magnetron is
250~400mA or so, 2.35~2.45KV of anode voltage.
7. dual magnetron household microwave oven according to claim 1, which is characterized in that the big commissure ring of the magnetron
Inside radius, outer radius, high respectively 8.95~9.1mm, 9.6~9.7mm, 1.30~1.35mm；The small commissure of the magnetron
Inside radius, outer radius, the high respectively 7.1~7.2mm, 7.9~8.0mm, 1.45~1.55mm of ring.
8. -6 any dual magnetron household microwave oven according to claim 1, which is characterized in that the power of two magnetrons
It is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250668.4A CN109963369A (en) | 2019-03-29 | 2019-03-29 | Dual magnetron household microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250668.4A CN109963369A (en) | 2019-03-29 | 2019-03-29 | Dual magnetron household microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109963369A true CN109963369A (en) | 2019-07-02 |
Family
ID=67025327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910250668.4A Pending CN109963369A (en) | 2019-03-29 | 2019-03-29 | Dual magnetron household microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109963369A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013432A (en) * | 2020-07-17 | 2020-12-01 | 广东美的厨房电器制造有限公司 | Microwave oven, control method thereof, and computer readable medium |
| CN112822809A (en) * | 2021-02-05 | 2021-05-18 | 四川大学锦城学院 | Microwave oven |
| CN113720103A (en) * | 2021-07-02 | 2021-11-30 | 广西科学院 | Drying process for different-frequency microwave synergistic heating of curcuma longa slices |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51109537A (en) * | 1975-03-20 | 1976-09-28 | Sanyo Electric Co | MAIKURO HAKANETSUSOCHI |
| CN85200297U (en) * | 1985-04-01 | 1985-10-10 | 华东师范大学 | Microwave heater |
| CN2624085Y (en) * | 2003-05-31 | 2004-07-07 | 海尔集团公司 | Three-dimensional double source microwave oven |
| CN1533831A (en) * | 2004-03-09 | 2004-10-06 | 四川大学 | Multimagnetron microwave chemical reactor |
| CN101427605A (en) * | 2006-02-21 | 2009-05-06 | 射频动力学有限公司 | Electromagnetic heating |
| CN102573162A (en) * | 2012-02-20 | 2012-07-11 | 四川大学 | Multi-magnetron microwave power intelligent control method adapted to time-varying load |
| CN108696958A (en) * | 2018-07-24 | 2018-10-23 | 电子科技大学 | A kind of double source double frequency micro-wave oven |
-
2019
- 2019-03-29 CN CN201910250668.4A patent/CN109963369A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51109537A (en) * | 1975-03-20 | 1976-09-28 | Sanyo Electric Co | MAIKURO HAKANETSUSOCHI |
| CN85200297U (en) * | 1985-04-01 | 1985-10-10 | 华东师范大学 | Microwave heater |
| CN2624085Y (en) * | 2003-05-31 | 2004-07-07 | 海尔集团公司 | Three-dimensional double source microwave oven |
| CN1533831A (en) * | 2004-03-09 | 2004-10-06 | 四川大学 | Multimagnetron microwave chemical reactor |
| CN101427605A (en) * | 2006-02-21 | 2009-05-06 | 射频动力学有限公司 | Electromagnetic heating |
| CN102573162A (en) * | 2012-02-20 | 2012-07-11 | 四川大学 | Multi-magnetron microwave power intelligent control method adapted to time-varying load |
| CN108696958A (en) * | 2018-07-24 | 2018-10-23 | 电子科技大学 | A kind of double source double frequency micro-wave oven |
Non-Patent Citations (1)
| Title |
|---|
| 李斌: "低电压磁控管的设计", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013432A (en) * | 2020-07-17 | 2020-12-01 | 广东美的厨房电器制造有限公司 | Microwave oven, control method thereof, and computer readable medium |
| CN112822809A (en) * | 2021-02-05 | 2021-05-18 | 四川大学锦城学院 | Microwave oven |
| CN113720103A (en) * | 2021-07-02 | 2021-11-30 | 广西科学院 | Drying process for different-frequency microwave synergistic heating of curcuma longa slices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109963369A (en) | Dual magnetron household microwave oven | |
| CN106031304A (en) | Microwave oven having a physically adjustable waveguide dynamically displaced by a movement control means | |
| WO2004098241A1 (en) | High-frequency heating device and method for controlling same | |
| JPH10106741A (en) | Waveguide system of electronic oven | |
| CN206989271U (en) | Multi-surface heating micro-wave oven | |
| WO2000003564A1 (en) | Variable-impedance unit, microwave device using the unit, and microwave heater | |
| CN105795952A (en) | Microwave cooking method and device and cooking household appliance | |
| KR101932046B1 (en) | Cooking apparatus using microwaves | |
| CN115734413A (en) | High-energy-efficiency stepped metal corrugated microwave uniform heating device | |
| CN102042620A (en) | Oven capable of realizing uniform heating | |
| CN108506974A (en) | A kind of microwave device with humidification function | |
| KR101885654B1 (en) | Cooking apparatus using microwaves | |
| CN210345566U (en) | Device for improving heating uniformity of microwave oven by continuously adjusting position of reflecting surface | |
| CN211600805U (en) | Microwave oven capable of preventing electromagnetic wave leakage | |
| CN108684096A (en) | A kind of microwave and integrated apparatus of drinking water | |
| KR101568039B1 (en) | Convection microwave oven | |
| KR101774395B1 (en) | Tray for heat-conversion and oven for cooking | |
| JP2016110729A (en) | Heating cooker | |
| WO2022123875A1 (en) | Thawing and heating cooker | |
| CN101193471A (en) | Microwave wave guide pipe for wave conversion stove | |
| JPH04319288A (en) | Heating cooker | |
| KR20240084720A (en) | Cooking appliances | |
| JP2007141538A (en) | Microwave heating device | |
| JPS6332235B2 (en) | ||
| JPS6119518Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190702 |
|
| RJ01 | Rejection of invention patent application after publication |