CN109600874A - Double array feed-in type microwave ovens - Google Patents
Double array feed-in type microwave ovens Download PDFInfo
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- CN109600874A CN109600874A CN201811380182.4A CN201811380182A CN109600874A CN 109600874 A CN109600874 A CN 109600874A CN 201811380182 A CN201811380182 A CN 201811380182A CN 109600874 A CN109600874 A CN 109600874A
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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
- H05B6/6402—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
- H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
- H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated
-
- 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
Abstract
The present invention uses one to two radiating curtain as often as possible to motivate higher mode TEn0 mode (n for integer, to be more than or equal to 2), to form standing wave in the heating chamber at the rear of the heating chamber of double array feed-in type microwave ovens or top.The present invention includes heating chamber and two radiating curtains.The radiating curtain includes at least two row radiators along Z axis.The radiating curtain passes through floor to the heating chamber microwave radiation energy.One of radiating curtain is located at behind the heating chamber of double array feed-in type microwave ovens, from back to front to heating chamber microwave radiation energy, another radiating curtain is located at before the heating chamber of double array feed-in type microwave ovens, from front to back to heating chamber microwave radiation energy.The present invention improves the uniformity of the heating of double array feed-in type microwave ovens in three dimensions by controlling the microwave mode in pair cavity of array feed-in type microwave ovens.
Description
Technical field
The present invention relates to micro-wave ovens.In particular it relates to a kind of micro-wave oven for being evenly heated material using higher mode high efficiency.
Background technique
Microwave energy is substituted for various traditional heating modes.Micro-wave oven utilizes the various foods of Microwave Heating and material
Material, in microwave chemical field, microwave energy be used to accelerate various chemical reactions.Microwave energy is also used for nano material, artificial
The production of a variety of materials such as diamond.
During traditional heating, heat by conducting inside it, belonging to surface heating outside heating object, cause by
It is uneven to heat object internal and external temperature.In Microwave Heating, microwave is material-to-be-heated by electric field action, leads to wherein polar molecule
Damping vibration generate heat, belong to body heating.Therefore it is heated simultaneously inside and outside heating object.
But there is the whole homogeneity question of heating in conventional microwave oven.
In any confined space of heating chamber etc, electromagnetic wave by because covibration with the various intrinsic of the cavity
The form of mode of resonance exists.In wherein any one mode of resonance, electromagnetic wave all exists with standing wave form, leads to space
The amplitude of the electric field of a little fixed positions is maximum, and in addition the amplitude of certain fixed positions is zero.It is micro- in the typical case of 2450MHz
Wave energy applying frequency, these electric fields concentrate between distance be operational microwave used wavelength half or slightly larger, substantially exist
Between 61 ~ 100 millimeters, cause material-to-be-heated uneven on corresponding scale.
The size of common household microwave oven is 5 ~ 10 times bigger than above-mentioned scale.It can near the working frequency in these cavitys
With the mode of resonance number that motivates for several to dozens of.There's a widespread conviction that by people, is conducive to using the heating chamber that height spends mould
The uniformity of microwave heating.But any superposition of plurality of mode of resonance may be generated in certain positions of heating chamber
Electric field much larger than other positions is concentrated, and causes the extreme of microwave heating uneven.
In order to solve the homogeneity question of Microwave Heating, international and domestic technical staff has carried out unremitting effort.People
Attempt by increase operational microwave feedback mouth number, change feedback mouth-shaped, change the feedback mouth of operational microwave in heating chamber appearance
The position in face perhaps changes the polarization direction of the feedback mouth of operational microwave or changes above-mentioned several variables at random simultaneously, passes through meter
It calculates or the method for improving heating uniformity is found in actual measurement.But up to the present, add in micro-wave oven, especially large size micro-wave oven
The homogeneity question of heat is not well solved.
Let us understands we face in micro-wave oven heating uniformity technical problem.In the frequency of operational microwave
Rate, for a certain microwave present mouth, after selecting its position, shape, polarization direction, in heating chamber several to dozens of modes respectively by
The determination of the intensity of excitation be all computationally it is very difficult, it is in actual measurement and extremely complex.And large-scale microwave
It is needed in furnace using multiple magnetrons as microwave source, therefore the number of corresponding microwave feedback mouth is also multiple, microwave stove heating
The complexity of problem exceeds the imagination of people.
Summary of the invention
The present invention passes through the operating mode controlled in mould heating chamber, provides a kind of micro-wave oven of homogeneous heating.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of double array feed-in type microwave ovens, including heating chamber and at least one radiating curtain.At least one described radiation
Array includes at least two row radiators along Z axis.The radiating curtain passes through floor to the heating chamber microwave radiation energy.?
In common microwave stove, magnetron is by waveguide and a coupling aperture to heating chamber radiation energy.The present invention is by using along Z axis side
To multirow radiator, in heating chamber microwave distribution more effectively controlled, improve the uniformity of heating.
Can also include multiple row radiator in X direction: at least one described radiating curtain includes at least two column along X-axis
Radiator 1.The radiating curtain passes through floor to the heating chamber microwave radiation energy.
In order to allow microwave field the communication process being distributed in heating chamber in remain unchanged as far as possible, any radiating curtain
On radiator be all uniformly distributed in X direction and along Z-direction.Meanwhile the spoke in all radiators on same radiating curtain
The microwave penetrated is coherent wave.Belong to the microwave of all radiators radiation of same a line along X-axis arrangement on same radiating curtain
Amplitude it is identical and phase is identical.Along the two of the arbitrary neighborhood for belonging to same row of Z axis arrangement on same radiating curtain
The amplitude of the microwave of a radiator radiation is identical, opposite in phase.Above-mentioned arrangement, it is therefore an objective to motivated in heating chamber to heating chamber
Some higher mode for the waveguide defined by the cross section vertical with the direction of the heating chamber that certain interior direction is propagated, and its
Its mode is not motivated as far as possible.
In order to simplify structure, we can also set on same radiating curtain belong to along adjacent two of Z axis it is same
The amplitude of the microwave of the radiator radiation of column is identical, and phase is identical.
Further, we allow each radiator to be located at same by the mode and field distribution of microwave in each radiator of control
Belong to center line along Z axis one side of the microwave in each radiator of the radiator radiation of same a line on radiating curtain along X-axis arrangement
On electric field component in the Z-axis direction be zero.
A kind of preferable scheme, any radiator are rectangular waveguide or rectangular waveguide loudspeaker.The rectangular waveguide or
The mode of microwave is basic mode TE10 mode in rectangular waveguide loudspeaker.Certainly, microwave in the rectangular waveguide or rectangular waveguide loudspeaker
Mode may be higher mode TEn0 mode, wherein n be integer, be more than or equal to 2.List in rectangular waveguide or rectangular horn
One higher mode is more complicated than the excitation of single basic mode mostly.
It motivates and transmits for the ease of single basic mode, the length of the rectangular waveguide or rectangular waveguide loudspeaker radiation opening's edge Z axis
Spend the 3/5 ~ 9/10 of the wavelength that Lz is operational microwave free space.The rectangular waveguide or rectangular waveguide loudspeaker radiation opening's edge X-axis
Length Lx be less than operational microwave free space wavelength.Preferably design, the rectangular waveguide or rectangular waveguide loudspeaker radiation
The length Lx of opening's edge X-axis is less than the half of the wavelength of operational microwave free space.
The alternatively paster antenna of radiator.The antenna mainly includes being supported by dielectric material plate positioned at Jie
On the sheet metal radiator of material plate surface and another side opposite with the sheet metal radiator on the dielectric material plate
Microwave excitation structure.At this moment, the spacing between the paster antenna center adjacent along Z axis is operational microwave free space
The 3/5 ~ 9/10 of wavelength.Spacing between the paster antenna center adjacent along X-axis is less than the wave of operational microwave free space
It is long.It preferably designs, the spacing between the paster antenna center adjacent along X-axis is less than the wavelength of operational microwave free space
Half.Preferably design, paster antenna here are rectangle.
Another kind design, any radiator are coaxial antenna.Here the coaxial antenna uses coaxial line feed-in
Microwave energy.Medium between the outer conductor and outer conductor and inner conductor of the coaxial line is cut off, but its inner conductor reaches
In free space.In order to improve radiation effect, the height of radiator is reduced, we are connected to a metal on the top of inner conductor
Disk or square conductor thin slice.The characteristics of this coaxial antenna is in certain two vertical direction of its coaxial line, electromagnetic field
It is all mirror symmetry.It is described adjacent along X-axis and spacing between the adjacent coaxial antenna center of Z axis is that operational microwave is free
The 3/5 ~ 9/10 of the wavelength in space.Belong to the microwave of the radiator radiation of same row along Z axis arrangement on same radiating curtain
The component of electric field in the X-axis direction on the center line along X-axis of each radiator is zero.Along X on same radiating curtain
Axis arrangement belongs to electric field of the microwave of the radiator radiation of same a line on the center line along Z axis of each radiator in Z-direction
On component be zero.
Here we only give three kinds of design schemes, rectangular waveguide or rectangular horn radiator, paster antenna and coaxial
Antenna.Other there are many more the antennas of structure, and it is single to can satisfy effectively having motivated in the heating chamber for the invention patent
The requirement of mould higher mode, all within the scope of protection of the patent of the invention.
A kind of design scheme, the number of the radiating curtain are 2.One of radiating curtain is located at double array feed-ins
Behind the heating chamber of type micro-wave heating furnace, from back to front to heating chamber microwave radiation energy, another radiating curtain position
Before the heating chamber of double array feed-in type microwave ovens, from front to back to heating chamber microwave radiation energy.
The shape of the heating chamber is cuboid.The a line from front to back of the Z-direction and the heating chamber is parallel.With it is above-mentioned
Two kinds of design schemes are compared, and the design scheme is slightly complicated.But we can allow two radiating curtains shape in the heating chamber
At the electric field maximal point of microwave of standing wave form be mutually staggered in the heating chamber, to further improve in the heating chamber
The uniformity of microwave field.Here the microwave source of two radiating curtains can be it is relevant each other, can also be from two mutually
Mutually independent microwave source.At this moment, the door-plate of double array feed-in type microwave ovens can be opened in the left side or the right side.
The electric field maximal point of the electromagnetic field for the standing wave form that above-mentioned each scheme has motivated is being the period in the heating chamber
Property dot matrix distribution.It further include the turntable positioned at heating chamber bottom to further improve the uniformity of heating.Double arrays
When feed-in type microwave oven works, center axis rotation vertically of the turntable around the turntable.
In general existing scheme, position of the axis of the turntable in the heater is fixed.Positioned at the axis
On it is material-to-be-heated can not by the turntable around the center axis rotation of the turntable vertically reach uniformly plus
Heat.
For this purpose, the present invention allows the central axis vertically of the turntable simultaneously in the middle front and back pendulum of the heating chamber (3)
It is dynamic.The amplitude of oscillation of the swing in the heating chamber of central axis vertically of the turntable is equal to operational microwave along front and back
The integral multiple of the distance between the adjacent electric field maximum point in direction.
In order to realize the turntable the swing in the heating chamber of central axis vertically function, this hair
Three schemes are devised in bright:
The first string is provided with cylindrical body on the axis of the vertical direction of the turntable, is arranged in the heating chamber bottom
There is the rectangular block for being fixed on the heating chamber bottom.The cylindrical body outer edge contacts on one side with the rectangular block.The circle
Cylinder outer edge along the rectangular block rolling on one side, to drive the turntable while rotation around own axes along the square
The translation on one side of shape block.Here the cylindrical body can directly be connect with the shaft of motor.The motor is with the cylindrical body
Mobile and its rotation direction is periodically reversed.Motor can also be fixed on to double array feed-in type microwave ovens
On, the cylindrical body to is sent torque by soft rod or soft stick.
Another scheme is provided with cylindrical body A and rectangular block A in the heating chamber bottom.A side of the rectangular block A
Face contacts with the side of the cylindrical body A and contacts with the side of the cylindrical body.When the cylindrical body A is around the cylindrical body A
Axis rotation when, by driving the rectangular block A to translate along the side of the rectangular block A and driving the turntable to rotate and put down
It moves.Here the cylindrical body A can directly be connect with the shaft of motor.
The third scheme is provided with cylindrical body A and rectangular block A, rectangular block B and fixing axle in the heating chamber bottom.Institute
The axis that cylindrical body A is stated around the cylindrical body A rotates, and drives the rectangular block A to translate by the fixing axle and rectangular block B,
To drive the turntable to rotate and translate.Here the cylindrical body A can directly be connect with the shaft of motor.
We can also allow the center axis rotation vertically of the turntable while around the vertical of the heating chamber
The center line precession in direction.The central axis vertically of the turntable around the vertical direction of the heating chamber center line into
Dynamic diameter is equal to 1.414 times of the integer of operational microwave the distance between certain adjacent electric field maximum point along the longitudinal direction
Times.
In order to realize the turntable along the center axis rotation of its vertical direction while around the heating chamber Vertical Square
To center line precession, we are there are two scheme:
The first string is provided with cylindrical body on the axis of the vertical direction of the turntable, is arranged in the heating chamber bottom
There is the cylindrical body B for being fixed on the heating chamber bottom.The cylindrical body outer edge is contacted with the outer edge of the cylindrical body B.Institute
The outer edge for stating cylindrical body is rolled along the outer edge of the cylindrical body B, so that it is same to drive the turntable to rotate around own axes
When around the cylindrical body B axis precession.Here the cylindrical body can directly be connect with the shaft of motor.The motor with
The cylindrical body is circumferentially moved around the axis of the cylindrical body B.
Second scheme, is provided with cylindrical body on the axis of the vertical direction of the turntable, in the heating chamber bottom
It is provided with cylindrical body A and round-meshed fixed plate is opened in inside.The outer edge of the cylindrical body outside with the cylindrical body A respectively
The inside edge of the circular hole of edge and the fixed plate contacts.The cylindrical body A is rotated around the axis of the cylindrical body A, described in drive
While turntable is around the axis rotation of the turntable, the axis precession of the axis of the turntable around the cylindrical body A.Here institute
Stating cylindrical body A can directly connect with the shaft of motor.
The above-mentioned axis for allowing the turntable is mobile or each scheme of precession in, the edge and rectangle of the cylinder to contact with each other
The side of block is generally mutually twisted with dentalation realization and transmits torque.Under normal circumstances, all turntables in the present invention, circle
Cylinder, cylindrical body A, B, rectangular block, rectangular block A, B, fixing axle, fixed plate are all low-loss nonmetallic materials.
Double array feed-in type microwave ovens of the invention can also the front and back of its heating chamber increase separately into
Material mouth and discharge port and conveyer belt through feed inlet, heating chamber and discharge port.It is material-to-be-heated by feed inlet by conveyer belt
It is sent to after being heated in heating chamber and is taken out from discharge port.It is material-to-be-heated in order to prevent to infect double array feed-in type micro-waves and add
The other parts or component of hot stove can carry out subregion using the partition of various low lossy microwaves in the heating chamber.
In the present invention, we use one to two radiating curtain in the heating chamber of double array feed-in type microwave ovens
In as often as possible motivated the higher mode of a certain waveguide, and forming standing wave in the heating chamber.In traditional micro-wave oven
Microwave source is compared by waveguide with multiple modes of resonance that coupling aperture motivates respective energy uncontrollable simultaneously in heating chamber, this
The field distribution of the operating mode of invention is determining and can be controlled.In order to further improve the uniformity of heating,
We used can with anterior-posterior translation or can be around the rotating circular disk of the vertical axis precession of heating chamber.
The feeding network of radiating curtain of the invention can use for reference the feeding network of common aerial array, using waveguide,
Micro-strip or splitter with wire realize the distribution of power and the feed to each radiator.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.
Fig. 1 is the schematic diagram of the radiating curtain of embodiment 1.
Fig. 2 is the AA direction schematic diagram of Fig. 1.
Fig. 3 is the schematic diagram of the radiating curtain of embodiment 2.
Fig. 4 is the AA direction schematic diagram of Fig. 3.
Fig. 5 is the schematic diagram of the radiating curtain of embodiment 3.
Fig. 6 is the AA direction schematic diagram of Fig. 5.
Fig. 7 is the schematic diagram of the radiating curtain of embodiment 4.
Fig. 8 is the AA direction schematic diagram of Fig. 7.
Fig. 9 is the schematic diagram of the radiating curtain of embodiment 5.
Figure 10 is the AA direction schematic diagram of Fig. 9.
Figure 11 is the schematic diagram of embodiment 6.
Figure 12 is the AA direction schematic diagram of Figure 11.
Figure 13 is the schematic diagram of embodiment 7.
Figure 14 is the AA direction schematic diagram of Figure 13.
Figure 15 is the schematic diagram of embodiment 8.
Figure 16 is the AA direction schematic diagram of Figure 15.
Figure 17 is the schematic diagram of embodiment 9.
Figure 18 is the AA direction schematic diagram of Figure 17.
Figure 19 is the schematic diagram of embodiment 10.
Figure 20 is the AA direction schematic diagram of Figure 19.
Figure 21 is the schematic diagram of embodiment 11.
Figure 22 is the AA direction schematic diagram of Figure 21.
Figure 23 is the schematic diagram of embodiment 12.
Figure 24 is the AA direction schematic diagram of Figure 23.
Figure 25 is the schematic diagram of embodiment 13.
Figure 26 is the AA direction schematic diagram of Figure 25.
Label and corresponding parts title in attached drawing: 1- radiator, the floor 2-, 3- heating chamber, 4- turntable, 5- cylinder
Body, 5A- cylindrical body A, 5B- cylindrical body B, 6- rectangular block, 6A- rectangular block A, 6B- rectangular block B, 6C- fixing axle, 7- fixed plate.
Arrow in each radiator radiation port or near radiation port indicates the power line direction of microwave.The front of heating chamber
Refer to that the slave paper of heating chamber is directed toward the direction of reader.The rear of heating chamber refers to the direction that paper is directed toward from reader of heating chamber.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail.Exemplary embodiment and its explanation of the invention for explaining only the invention, is not made
For limitation of the invention.
Embodiment 1
Such as Fig. 1 and 2.
One radiating curtain, including 4 rows along Z axis, the 8 column radiators 1 along X-axis.The radiating curtain passes through floor 2 to institute
State heating chamber microwave radiation energy.
Radiator 1 on the radiating curtain is all uniformly distributed in X direction and along Z-direction.Meanwhile being located at the radiating curtain
On all radiators 1 in the microwave that radiates be coherent wave.Belong to all of same a line along X-axis arrangement on the radiating curtain
The amplitude for the microwave that radiator 1 radiates is identical and phase is identical.Along any two that Z axis is adjacent on same radiating curtain
The amplitude for belonging to the microwave of the radiation of radiator 1 of same row is identical, opposite in phase.
The microwave that all radiators 1 on the radiating curtain radiate is in each radiator 1 along the center line on Z axis one side
Direction of an electric field is directed toward X-direction.
Any radiator 1 is rectangular waveguide.The operating mode of microwave is basic mode TE10 mode in the rectangular waveguide.
The length Lz of the rectangular waveguide opening's edge Z axis is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.The square
The length Lx of shape waveguide opening's edge X-axis is less than the half of the wavelength of operational microwave free space.
Embodiment 2
As shown in Figures 3 and 4.
Compared with embodiment 1, the difference is that only: radiator 1 is paster antenna.The antenna mainly includes by medium
Plate of material support positioned at the sheet metal radiator of the dielectric material plate surface and on the dielectric material plate with the metal
Microwave excitation structure on the opposite another side of piece radiator.Spacing between the paster antenna center adjacent along Z axis is
The 3/5 ~ 9/10 of the wavelength of operational microwave free space.Spacing between the paster antenna center adjacent along X-axis is less than work
Make the half of the wavelength of microwave free space.The paster antenna is rectangle.
Different from the rectangular waveguide of TE10 mould is propagated in embodiment 1, paster antenna here is hung down by two with X-axis
Straight long side microwave radiation energy.
Embodiment 3
As illustrated in Figures 5 and 6.
Compared with embodiment 1, the difference is that only: radiator 1 is coaxial antenna.Here the coaxial antenna
Using coaxial line feed-in microwave energy.Medium between the outer conductor and outer conductor and inner conductor of the coaxial line is cut off, but
Its inner conductor reaches in free space.A rosette is connected on the top of inner conductor.
It is described adjacent along X-axis and spacing between the adjacent coaxial antenna center of Z axis is operational microwave free space
Wavelength 3/5 ~ 9/10.Belong to the microwave of the radiation of radiator 1 of same row along Z axis arrangement on same radiating curtain each
The component of electric field in the X-axis direction on the center line along X-axis of radiator 1 is zero.It is arranged on same radiating curtain along X-axis
Electric field of the microwave on the center line along Z axis of each radiator 1 that dependent of dead military hero is radiated in the radiator 1 of same a line is in the Z-axis direction
Component be zero.
Different from the rectangular waveguide of TE10 mould is propagated in embodiment 1, coaxial antenna here passes through its metal disk
Even circumferential radiates same-phase microwave energy.Belong to the two of the arbitrary neighborhood of same a line along X-axis arrangement on the radiating curtain
The amplitude of the microwave of a coaxial antenna radiation is identical and opposite in phase.The belonging to along Z axis arrangement on same radiating curtain
The amplitude of the microwave of two adjacent coaxial aerial radiations of the arbitrary neighborhood of same row is identical, opposite in phase.
Embodiment 4
As shown in FIG. 7 and 8.
It compared with embodiment 3, the difference is that only: belonging to same a line along X-axis arrangement on the radiating curtain
The amplitude of the microwave of two coaxial antennas radiation of arbitrary neighborhood is identical and phase is identical.Along Z on same radiating curtain
The amplitude of the microwave of two adjacent coaxial aerial radiations of the arbitrary neighborhood for belonging to same row of axis arrangement is identical, phase also phase
Together.It is described along X-axis is adjacent and spacing between the adjacent coaxial antenna center of Z axis is the wavelength of operational microwave free space
6/10 ~ 19/10.
Embodiment 5
As shown in Figures 9 and 10.
A kind of double array feed-in type microwave ovens, including heating chamber 3 and a radiating curtain.The radiating curtain is edge
4 rows of Z axis, along 8 column radiators 1 of X-axis.The radiating curtain is placed in the top of the heating chamber 3, by floor 2 from upper
Downwards to 3 microwave radiation energy of heating chamber.Heating chamber 3 is cuboid.Z axis and the cuboid heating chamber 3 from backward
Preceding a line is parallel.
Radiator 1 on any radiating curtain is all uniformly distributed in X direction and along Z-direction.Meanwhile being located at same spoke
Penetrating the microwave radiated in all radiators 1 on array is coherent wave.On same radiating curtain along X-axis arrangement belong to it is same
The amplitude for the microwave that capable all radiators 1 radiate is identical and phase is identical.Along Z axis arrangement on same radiating curtain
The amplitude for belonging to the microwave of two radiators 1 radiation of the arbitrary neighborhood of same row is identical, opposite in phase.
The microwave that each radiator 1 radiates each radiator 1 the electric field on the center line on Z axis one side in the Z-axis direction
Component be zero.
Any radiator 1 is rectangular waveguide.The mode of microwave is basic mode TE10 in the rectangular waveguide radiator
Mode.
The rectangular waveguide radiator along Z axis length Lz be operational microwave free space wavelength 3/5 ~ 9/10.Institute
State the half that rectangular waveguide radiator is less than the wavelength of operational microwave free space along the length Lx of X-axis.
It further include the turntable 4 positioned at 3 bottom of heating chamber.When double array feed-in type microwave ovens work, described turn
Center axis rotation vertically of the disk 4 around the turntable 4.
The swing in the heating chamber 3 of the central axis vertically of the turntable 4.The amplitude of oscillation of the swing is equal to
The integral multiple of operational microwave the distance between certain adjacent electric field maximum point along the longitudinal direction.
For this purpose, being provided with cylindrical body 5 on the axis of the vertical direction of the turntable 4, it is arranged in 3 bottom of heating chamber
There is the rectangular block 6 for being fixed on 3 bottom of heating chamber.5 outer edge of cylindrical body contacts on one side with the rectangular block 6.Institute
5 outer edge of cylindrical body is stated along the rolling on one side of the rectangular block 6, thus while driving the turntable 4 to rotate around own axes
Along the translation on one side of the rectangular block 6.Here the cylindrical body 5 can directly be connect with the shaft of motor.The motor with
The cylindrical body 5 is mobile and its rotation direction is periodically reversed.Motor can also be fixed on to double array feed-in types
On microwave oven, the cylindrical body 5 to is sent torque by soft rod or soft stick.
Embodiment 6
As shown in FIG. 11 and 12.
It compared with embodiment 5, the difference is that only, after a radiating curtain is placed in the heating chamber 3
Side, from back to front to 3 microwave radiation energy of heating chamber.Z axis is parallel with the vertical direction of heating chamber.This arrangement, in heating chamber
In, the microwave field of the main operation modes TE40 mode of incidence wave from back to front and back wave from back to front does not become with height
Change, electric field only has vertical direction component, ensure that heating in the uniformity of vertical direction.Axis of the turntable 4 around the turntable 4
The axis for rotating the turntable 4 simultaneously of line is translated along Y-axis, ensure that the uniformity of heating in the horizontal plane.
Embodiment 7
As shown in Figs. 13 and 14.
It compared with embodiment 6, the difference is that only, 3 bottom of heating chamber be provided with cylindrical body A 5A and square
Shape block A 6A.A side of the rectangular block A 6A contacted with the side of the cylindrical body A 5A and with the cylindrical body 5
Side contact.When axis rotation of the cylindrical body A 5A around the cylindrical body A 5A, by driving the rectangular block A 6A
It is translated along the side of the rectangular block A 6A and drives the turntable 4 to rotate and translate.Here the cylindrical body A 5A can be with
Directly it is connect with the shaft of motor.
Embodiment 8
As shown in figs.
It compared with embodiment 6, the difference is that only, be provided with circle on the axis of the vertical direction of the turntable 4
Cylinder 5 is provided with the cylindrical body B 5B for being fixed on 3 bottom of heating chamber in 3 bottom of heating chamber.Outside the cylindrical body 5
Edge is contacted with the outer edge of the cylindrical body B 5B.Outer edge of the outer edge of the cylindrical body 5 along the cylindrical body B 5B
It rolls, to drive axis precession of the turntable 4 while rotation around own axes around the cylindrical body B 5B.Here institute
Stating cylindrical body 5 can directly connect with the shaft of motor.The motor is with the cylindrical body 5 around the axis of the cylindrical body B 5B
Circumferentially move.
Embodiment 9
As shown in FIG. 17 and 18.
It compared with embodiment 6, the difference is that only, be provided with circle on the axis of the vertical direction of the turntable 4
Cylinder 5 is provided with cylindrical body A 5A in 3 bottom of heating chamber and round-meshed fixed plate 7 is opened in inside.The cylindrical body 5
Outer edge is contacted with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7 respectively.The cylindrical body A
5A is rotated around the axis of the cylindrical body A 5A, while driving axis rotation of the turntable 4 around the turntable 4, described turn
Axis precession of the axis of disk 4 around the cylindrical body A 5A.Here the cylindrical body A 5A can directly with the shaft of motor
Connection.
Embodiment 10
As shown in Figures 19 and 20.
It compared with embodiment 6, the difference is that only, radiator here is paster antenna.The antenna mainly wraps
Include by dielectric material plate support positioned at the sheet metal radiator of the dielectric material plate surface and on the dielectric material plate
Microwave excitation structure on another side opposite with the sheet metal radiator.Between the paster antenna center adjacent along Z axis
Spacing is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.Spacing between the paster antenna center adjacent along X-axis
Less than the half of the wavelength of operational microwave free space.The paster antenna is rectangle.
Embodiment 11
As shown in figs. 21 and 22.
It compared with embodiment 10, the difference is that only, 3 bottom of heating chamber be provided with cylindrical body A 5A and square
Shape block A 6A.A side of the rectangular block A 6A contacted with the side of the cylindrical body A 5A and with the cylindrical body 5
Side contact.When axis rotation of the cylindrical body A 5A around the cylindrical body A 5A, by driving the rectangular block A 6A
It is translated along the side of the rectangular block A 6A and drives the turntable 4 to rotate and translate.Here the cylindrical body A 5A can be with
Directly it is connect with the shaft of motor.
Embodiment 12
As shown in figs. 23 and 24.
It compared with embodiment 10, the difference is that only, be provided with circle on the axis of the vertical direction of the turntable 4
Cylinder 5 is provided with the cylindrical body B 5B for being fixed on 3 bottom of heating chamber in 3 bottom of heating chamber.Outside the cylindrical body 5
Edge is contacted with the outer edge of the cylindrical body B 5B.Outer edge of the outer edge of the cylindrical body 5 along the cylindrical body B 5B
It rolls, to drive axis precession of the turntable 4 while rotation around own axes around the cylindrical body B 5B.Here institute
Stating cylindrical body 5 can directly connect with the shaft of motor.The motor is with the cylindrical body 5 around the axis of the cylindrical body B 5B
Circumferentially move.
Embodiment 13
As shown in figs. 25 and 26.
It compared with embodiment 10, the difference is that only, be provided with circle on the axis of the vertical direction of the turntable 4
Cylinder 5 is provided with cylindrical body A 5A in 3 bottom of heating chamber and round-meshed fixed plate 7 is opened in inside.The cylindrical body 5
Outer edge is contacted with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7 respectively.The cylindrical body A
5A is rotated around the axis of the cylindrical body A 5A, while driving axis rotation of the turntable 4 around the turntable 4, described turn
Axis precession of the axis of disk 4 around the cylindrical body A 5A.Here the cylindrical body A 5A can directly with the shaft of motor
Connection.
Embodiment 14
It compared with embodiment 13, the difference is that only, the number of the radiating curtain is 2.One of radiating curtain position
Behind the heating chamber of double array feed-in type microwave ovens, from back to front to heating chamber microwave radiation energy,
Another radiating curtain is located at before the heating chamber of double array feed-in type microwave ovens, from front to back to adding
Hot chamber microwave radiation energy.
Claims (8)
1. a kind of double array feed-in type microwave ovens, which is characterized in that including heating chamber (3), a radiating curtain；It is described
The shape of heating chamber (3) is cuboid；The radiating curtain includes at least two row radiators (1) along Z axis；The radiating curtain
Pass through floor (2) Xiang Suoshu heating chamber microwave radiation energy；The number of the radiating curtain is 2；One of radiating curtain position
Behind the heating chamber (3), from back to front to heating chamber (3) microwave radiation energy, another radiating curtain is located at described
Before heating chamber (3), from front to back to heating chamber (3) microwave radiation energy；The Z-direction and the heating chamber (3)
A line from front to back is parallel；X-axis, Y-axis and Z axis form right angle coordinate system.
2. double array feed-in type microwave ovens according to claim 1, which is characterized in that at least one described radiation battle array
Column further include at least two column radiators (1) along X-axis；Belong to appointing for same row along Z axis arrangement on same radiating curtain
The microwave for two radiators (1) radiation for anticipating adjacent amplitude is identical and opposite in phase.
3. double array feed-in type microwave ovens according to claim 1, which is characterized in that be located on same radiating curtain
The microwave that the radiator (1) for belonging to same a line along X-axis arrangement radiates is in each radiator (1) along the center line on Z axis one side
The component of electric field in the Z-axis direction is zero.
4. double array feed-in type microwave ovens according to claim 1, which is characterized in that any radiator (1)
For rectangular waveguide or rectangular waveguide loudspeaker；The mode of microwave is basic mode TE10 mould in the rectangular waveguide or rectangular waveguide loudspeaker
Formula；The length Lz of the rectangular waveguide or rectangular waveguide loudspeaker radiation opening's edge Z axis is the 3/5 of the wavelength of operational microwave free space
~ 9/10 times；The rectangular waveguide or the length Lx of rectangular waveguide loudspeaker radiation opening's edge X-axis are less than the wave of operational microwave free space
It is long.
5. double array feed-in type microwave ovens according to claim 1, which is characterized in that any radiator (1)
For paster antenna；Spacing between the paster antenna center adjacent along Z axis is the 3/5 of the wavelength of operational microwave free space
~ 9/10 times；Spacing between the paster antenna center adjacent along X-axis is less than the one of the wavelength of operational microwave free space
Half.
6. double array feed-in type microwave ovens according to claim 1, which is characterized in that any radiator (1)
For coaxial antenna；It is described adjacent along X-axis and spacing between the adjacent coaxial antenna center of Z axis is operational microwave free space
Wavelength 3/5 ~ 9/10；The microwave for belonging to radiator (1) radiation of same row along Z axis arrangement on same radiating curtain exists
The component of electric field in the X-axis direction on the center line along X-axis of each radiator (1) is zero；Along X on same radiating curtain
Axis arrangement belongs to electric field of the microwave of radiator (1) radiation of same a line on the center line along Z axis of each radiator (1) in Z
Component in axis direction is zero.
7. double array feed-in type microwave ovens according to claim 1, which is characterized in that further include being located at heating chamber
(3) turntable (4) of bottom；When double array feed-in type microwave ovens work, the turntable (4) is around the turntable (4)
Center axis rotation vertically；The central axis vertically of the turntable (4) simultaneously in the heating chamber (3) before
After swing；The amplitude of oscillation of the swing in the heating chamber (3) of central axis vertically of the turntable (4) is equal to work
The integral multiple of microwave the distance between certain adjacent electric field maximum point along the longitudinal direction.
8. double array feed-in type microwave ovens according to claim 1, which is characterized in that further include being located at heating chamber
(3) turntable (4) of bottom；Hanging down around the heating chamber (3) while the center axis rotation vertically of the turntable (4)
Histogram to center line precession；Around the heating chamber (3) while the center axis rotation vertically of the turntable (4)
The diameter of the center line precession of vertical direction is operational microwave certain adjacent the distance between electric field maximum point along the longitudinal direction
1.414 times of integral multiple.
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| CN201811380182.4A CN109600874A (en) | 2018-11-20 | 2018-11-20 | Double array feed-in type microwave ovens |
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| CN201811380182.4A CN109600874A (en) | 2018-11-20 | 2018-11-20 | Double array feed-in type microwave ovens |
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Family
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020158066A1 (en) * | 1998-02-19 | 2002-10-31 | Siemens Aktiengesellschaft | Furnace for microwave sintering of nuclear fuel |
| CN1392362A (en) * | 2001-06-19 | 2003-01-22 | 季网宝 | Movable microwave oven rotary disc |
| CN1458465A (en) * | 2002-05-17 | 2003-11-26 | 乐金电子(天津)电器有限公司 | Tray driving device of microwave oven |
| CN1888572A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven rotary disc assembly |
| WO2012137447A1 (en) * | 2011-04-01 | 2012-10-11 | パナソニック株式会社 | Microwave heating device |
| JP2013218904A (en) * | 2012-04-10 | 2013-10-24 | Panasonic Corp | Microwave heating device |
| CN103916998A (en) * | 2013-01-08 | 2014-07-09 | 松下电器产业株式会社 | Microwave heating device |
| CN104272866A (en) * | 2012-03-09 | 2015-01-07 | 松下电器产业株式会社 | Microwave heating device |
| CN106099376A (en) * | 2016-07-15 | 2016-11-09 | 西安电子科技大学 | Miniaturization frequency based on microstrip array feed sweeps electromagnetic horn |
-
2018
- 2018-11-20 CN CN201811380182.4A patent/CN109600874A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020158066A1 (en) * | 1998-02-19 | 2002-10-31 | Siemens Aktiengesellschaft | Furnace for microwave sintering of nuclear fuel |
| CN1392362A (en) * | 2001-06-19 | 2003-01-22 | 季网宝 | Movable microwave oven rotary disc |
| CN1458465A (en) * | 2002-05-17 | 2003-11-26 | 乐金电子(天津)电器有限公司 | Tray driving device of microwave oven |
| CN1888572A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven rotary disc assembly |
| WO2012137447A1 (en) * | 2011-04-01 | 2012-10-11 | パナソニック株式会社 | Microwave heating device |
| CN104272866A (en) * | 2012-03-09 | 2015-01-07 | 松下电器产业株式会社 | Microwave heating device |
| JP2013218904A (en) * | 2012-04-10 | 2013-10-24 | Panasonic Corp | Microwave heating device |
| CN103916998A (en) * | 2013-01-08 | 2014-07-09 | 松下电器产业株式会社 | Microwave heating device |
| CN106099376A (en) * | 2016-07-15 | 2016-11-09 | 西安电子科技大学 | Miniaturization frequency based on microstrip array feed sweeps electromagnetic horn |
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Application publication date: 20190409 |