CN109951911A - Rectangle battle array presents type micro-wave heating furnace - Google Patents
Rectangle battle array presents type micro-wave heating furnace Download PDFInfo
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- CN109951911A CN109951911A CN201811380217.4A CN201811380217A CN109951911A CN 109951911 A CN109951911 A CN 109951911A CN 201811380217 A CN201811380217 A CN 201811380217A CN 109951911 A CN109951911 A CN 109951911A
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Abstract
Higher mode TEn0 mode has as often as possible been motivated in front, rear or the top that the present invention uses one to two radiating curtain to present the heating chamber of type micro-wave heating furnace in rectangle battle array, and (n is integer, more than or equal to 2), to form equally distributed standing wave in the heating chamber.The present invention includes heating chamber, at least one radiating curtain.Compared with multiple modes of resonance that microwave source in traditional micro-wave oven motivates respective energy uncontrollable simultaneously by waveguide and coupling aperture in heating chamber, the field distribution of operating mode of the invention is determining and can be controlled.In order to further improve the uniformity of heating, we used can with transverse translation or can be around the rotating circular disk of the vertical axis precession of heating chamber.The present invention presents the microwave mode in the cavity of type micro-wave heating furnace by control rectangle battle array to improve the uniformity that rectangle battle array presents the heating of type micro-wave heating furnace in three dimensions.
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 rectangle battle array feedback type micro-wave heating furnace, including heating chamber and at least one radiating curtain.At least one described radiation battle array
Column include at least two row radiators along Z axis.The radiating curtain passes through floor to the heating chamber microwave radiation energy.General
In logical micro-wave oven, magnetron is by waveguide and a coupling aperture to heating chamber radiation energy.The present invention is by using along Z-direction
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.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.Two along Z axis arbitrary neighborhood on same radiating curtain belong to the radiation of same row
The amplitude of the microwave of device radiation is identical, opposite in phase.Above-mentioned arrangement, it is therefore an objective to certain side into heating chamber has been motivated in heating chamber
To some higher mode for the waveguide of propagation defined by the cross section vertical with the direction of the heating chamber, and other modes
It 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
On radiating curtain along X-axis arrangement belong to same a line each radiator radiation microwave in each radiator along Z axis one side
The component of electric field in the Z-axis direction on heart line is 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.But in rectangular waveguide or rectangular horn
Single higher mode it 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
The sheet metal of material plate surface and the microwave excitation on the another side opposite with the sheet metal on the dielectric material plate
Structure.At this moment, the spacing between the paster antenna center adjacent along Z axis be operational microwave free space wavelength 3/5 ~
9/10.Spacing between the paster antenna center adjacent along X-axis is less than the wavelength of operational microwave free space.Preferably set
It counts, the spacing between the paster antenna center adjacent along X-axis is less than the half of the wavelength of operational microwave free space.Preferably
Design, the shape of paster antenna here is rectangle.
Another kind design, any radiator are coaxial antenna.Here the coaxial antenna generally uses coaxial line
Feed-in microwave energy can also use other transmission line feed-ins.Between the outer conductor and outer conductor and inner conductor of the coaxial line
Medium be cut off, but its inner conductor reaches in free space.In order to improve radiation effect, the height of radiator is reduced, I
Be connected to a rosette or square conductor thin slice on the top of inner conductor.The characteristics of this coaxial antenna is same at it
Two vertical side surface directions of certain two of axis, electromagnetic field is all mirror symmetry.It is described adjacent adjacent with along Z axis along X-axis
Coaxial antenna center between spacing be operational microwave free space wavelength 3/5 ~ 9/10.On same radiating curtain
Belong to electric field of the microwave of the radiator radiation of same row on the center line along X-axis of each radiator in X-axis side along Z axis arrangement
Upward component is zero.Belong to the microwave of the radiator radiation of same a line along X-axis arrangement on same radiating curtain in each spoke
The component of electric field in the Z-axis direction on the center line along Z axis of emitter is 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 shape of the heating chamber are cuboid.The number of the radiating curtain is 1.It is one
Radiating curtain is located above the heating chamber of rectangle battle array feedback type micro-wave heating furnace, radiates microwave to the heating chamber from the top down
Energy.The a line from back to front of the Z-direction and the heating chamber is parallel.
Another design scheme, the shape of the heating chamber are cuboid.The number of the radiating curtain is 1.The spoke
It penetrates array to be located at behind the heating chamber of rectangle battle array feedback type micro-wave heating furnace, be radiated from back to front to heating chamber micro-
Wave energy or the radiating curtain are located at before the heating chamber of rectangle battle array feedback type micro-wave heating furnace, from forward direction
Backward heating chamber microwave radiation energy.The a line from front to back of the Z-direction and the heating chamber is parallel.
The third design scheme, the shape of the heating chamber are cuboid.The number of the radiating curtain is 2.Wherein one
A radiating curtain is located at behind the heating chamber of rectangle battle array feedback type micro-wave heating furnace, from back to front to heating chamber spoke
Microwave energy is penetrated, another radiating curtain is located at before the heating chamber of rectangle battle array feedback type micro-wave heating furnace, in the past
To backward heating chamber microwave radiation energy.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 the heating chamber
The uniformity of middle microwave field.Here the microwave source of two radiating curtains can be relevant each other, can also derive from two
Mutual independent microwave source.When the working frequency difference of two microwave sources, better effect, but it is more complicated.
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.The rectangle battle array
When feedback type micro-wave heating furnaceman makees, 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 allow the turntable central axis vertically simultaneously the swing in the heating chamber.
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 electric field maximum point adjacent to certain.
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 vertically of the turntable, sets in the heating chamber bottom
It is equipped with the rectangular block for being fixed on the heating chamber bottom.The cylindrical body outer edge contacts on one side with the rectangular block.It is described
Cylindrical body outer edge along the rectangular block rolling on one side, to drive the turntable while rotation around own axes along described
The translation on one side of rectangular block.Here the cylindrical body is directly connect with the shaft of motor.The motor is moved with the cylindrical body
Dynamic and its rotation direction is periodically reversed.Motor can also be fixed on the rectangle battle array feedback type micro-wave heating furnace, be led to
It crosses soft rod or soft stick and sends torque to the cylindrical body.
Second scheme is additionally provided with cylindrical body A and rectangular block A in the heating chamber bottom.One of the rectangular block A
Side 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
When the axis rotation of A, by driving the rectangular block A to translate along the side of the rectangular block A and driving the turntable rotation simultaneously
Translation.Here the cylindrical body A is directly connect with the shaft of motor, and motor is fixed on the rectangle battle array feedback type micro-wave heating furnace
On.
The third scheme is additionally provided with cylindrical body A and rectangular block in the heating chamber bottom on the basis of the first scheme
A, rectangular block B and fixing axle.The cylindrical body A is rotated around the axis of the cylindrical body A, passes through the fixing axle and rectangular block B
The rectangular block A is driven to translate, to drive the turntable to rotate and translate.Here the cylindrical body A directly with motor
Shaft connection, motor are fixed on the rectangle battle array feedback type micro-wave heating furnace, and the rotation of motor need not be reversed.
We can also allow while the center axis rotation vertically of the turntable around the heating chamber along hanging down
Histogram to center line precession.The central axis vertically of the turntable is around the center vertically of the heating chamber
The diameter of line precession is equal to operational microwave 1.414 times of the distance between certain adjacent electric field maximum point whole along the longitudinal direction
Several times.Such design is conducive to improve on the turntable uniformity of the heating material at vertically axis.
In order to realize the turntable along the center axis rotation of its vertical direction while around the heating chamber along vertical
The center line precession in direction, there are two schemes for we:
The first string is provided with cylindrical body on the axis vertically of the turntable, sets in the heating chamber bottom
It is equipped with 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.
The outer edge of the cylindrical body is rolled along the outer edge of the cylindrical body B, so that the turntable be driven to rotate around own axes
Simultaneously around the axis precession of the cylindrical body B.Here the cylindrical body is directly connect with the shaft of motor.The motor is with institute
The axis that cylindrical body is stated around the cylindrical body B circumferentially moves.
Second scheme is provided with cylindrical body on the axis vertically of the turntable, at the heating chamber bottom
Portion is provided with cylindrical body A and round-meshed fixed plate is opened in inside.The outer edge of the cylindrical body is outer with the cylindrical body A respectively
The contact of the inside edge of edge and the circular hole of the fixed plate.The cylindrical body A is rotated around the axis of the cylindrical body A, drives institute
While stating axis rotation of the turntable around the turntable, the axis precession of the axis of the turntable around the cylindrical body A.Here
The cylindrical body A is 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 and transmits torque with dentalation realization, can also otherwise, for example belt etc. is completed
Same function.Under normal circumstances, all turntables in the present invention, cylindrical body, cylindrical body A, B, rectangular block, rectangular block A, B,
Fixing axle, fixed plate are all low-loss nonmetallic materials.
Rectangle battle array feedback type micro-wave heating furnace of the invention can also increase separately charging in the front and back of its heating chamber
Mouth and discharge port and the conveyer belt through feed inlet, heating chamber and discharge port.It is material-to-be-heated to be sent by feed inlet by conveyer belt
It is taken out after entering into heating chamber heating from discharge port.It is material-to-be-heated in order to prevent to infect the rectangle battle array feedback type micro-wave heating furnace
Other parts or component, in the heating chamber can using various low lossy microwaves partition carry out subregion.
In the present invention, we are using one to two radiating curtain in the heating chamber of rectangle battle array feedback type micro-wave heating furnace
The higher mode of a certain waveguide has as often as possible been motivated, and has formed standing wave in the heating chamber.With it is micro- in traditional micro-wave oven
Wave source is compared by waveguide with multiple modes of resonance that coupling aperture motivates respective energy uncontrollable simultaneously in heating chamber, this hair
The field distribution of bright operating mode is determining and can be controlled.In order to further improve the uniformity of heating, I
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,
Coaxially, micro-strip, realize with line or other power splitters the distribution of power and to the phase controlling of 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 the radiating curtain of embodiment 6.
Figure 12 is the AA direction schematic diagram of Figure 11.
Figure 13 is the schematic diagram of the radiating curtain of embodiment 7.
Figure 14 is the AA direction schematic diagram of Figure 13.
Figure 15 is the schematic diagram of the radiating curtain of embodiment 8.
Figure 16 is the AA direction schematic diagram of Figure 15.
Figure 17 is the AA direction schematic diagram of embodiment 9.
Figure 18 is the schematic diagram of embodiment 10.
Figure 19 is the AA direction schematic diagram of Figure 18.
Figure 20 is the schematic diagram of embodiment 11.
Figure 21 is the AA direction schematic diagram of Figure 20.
Figure 22 is the schematic diagram of embodiment 12.
Figure 23 is the AA direction schematic diagram of Figure 22.
Figure 24 is the schematic diagram of embodiment 13.
Figure 25 is the AA direction schematic diagram of Figure 24.
Figure 26 is the schematic diagram of embodiment 14.
Figure 27 is the AA direction schematic diagram of Figure 26.
Figure 28 is the schematic diagram of embodiment 15.
Figure 29 is the AA direction schematic diagram of Figure 28.
Figure 30 is the schematic diagram of embodiment 16.
Figure 31 is the AA direction schematic diagram of Figure 30.
Figure 32 is the schematic diagram of embodiment 17.
Figure 33 is the AA direction schematic diagram of Figure 32.
Figure 34 is the schematic diagram of embodiment 18.
Figure 35 is the AA direction schematic diagram of Figure 34.
Figure 36 is the schematic diagram of embodiment 19.
Figure 37 is the AA direction schematic diagram of Figure 36.
Figure 38 is the schematic diagram of embodiment 20.
Figure 39 is the AA direction schematic diagram of Figure 38.
Figure 40 is the schematic diagram of embodiment 21.
Figure 41 is the AA direction schematic diagram of Figure 40.
Figure 42 is the schematic diagram of embodiment 22.
Figure 43 is the AA direction schematic diagram of Figure 42.
Figure 44 is the schematic diagram of embodiment 23.
Figure 45 is the AA direction schematic diagram of Figure 44.
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 signal of microwave.Heating chamber
Front refers to that the slave paper of heating chamber is directed toward the direction of reader.The rear of heating chamber refers to the side that paper is directed toward from reader of heating chamber
To.
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.
A kind of rectangle battle array feedback type micro-wave heating furnace, including heating chamber and at least one radiating curtain.One radiation battle array
Column, including 4 rows along Z axis, the 8 column radiators 1 along X-axis.The radiating curtain radiates microwave to the heating chamber 3 by floor 2
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
Electric field is zero along the component of Z axis.
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 of the dielectric material plate surface and opposite with the sheet metal on the dielectric material plate
Another side on microwave excitation structure.Spacing between the paster antenna center adjacent along Z axis is that operational microwave is free
The 3/5 ~ 9/10 of the wavelength in space.It is freely empty that spacing between the paster antenna center adjacent along X-axis is less than operational microwave
Between wavelength half.The shape of 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, each coaxial antenna here passes through its metal disk
Even circumferential radiate same-phase microwave energy.Belong to the arbitrary neighborhood of same a line along X-axis arrangement on the radiating curtain
The microwave of two coaxial antennas radiation amplitude is identical and opposite in phase.Belong to together on the radiating curtain along Z axis arrangement
The microwave of two coaxial antennas radiation of the arbitrary neighborhood of one column amplitude is identical and 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 axis on the radiating curtain
The amplitude for the microwave that two coaxial antennas that arrangement belongs to the arbitrary neighborhood of same row radiate is identical and phase is identical.The edge
X-axis is adjacent and spacing between the adjacent coaxial antenna center of Z axis be operational microwave free space wavelength 6/10 ~
19/10。
Embodiment 5
As shown in Figures 9 and 10.
A kind of rectangle battle array feedback type micro-wave heating furnace, including heating chamber 3 and a radiating curtain.The radiating curtain is along Z
4 rows of 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 on to
It is lower to 3 microwave radiation energy of heating chamber.Heating chamber 3 is cuboid.Z axis and the cuboid heating chamber 3 are from back to front
A line it 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 operating mode of microwave is basic mode in the rectangular waveguide radiator 1
TE10 mode.
The rectangular waveguide along Z axis length Lz be operational microwave free space wavelength 3/5 ~ 9/10.The rectangle
Waveguide radiator 1 is less than the half of 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 the rectangle battle array feedback type micro-wave heating furnaceman makees, the turntable 4
Around the center axis rotation vertically of the turntable 4.
The also swing in the heating chamber 3 of the central axis vertically of the turntable 4.The amplitude of oscillation etc. of the swing
In 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 vertically of the turntable 4, set in 3 bottom of heating chamber
It is equipped with 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.
5 outer edge of cylindrical body along the rectangular block 6 rolling on one side, so that it is same to drive the turntable 4 to rotate around own axes
When along the rectangular block 6 translation on one side.Here the cylindrical body 5 is directly connect with the shaft of motor.The motor is with institute
It states the movement of cylindrical body 5 and its rotation direction is periodically reversed, to realize the central axis vertically of the turntable
Swing.Motor can also be fixed on rectangle battle array feedback type micro-wave heating furnace, by soft rod or soft stick by torque
Send the cylindrical body 5 to.
Embodiment 6
As shown in FIG. 11 and 12.
It compared with embodiment 5, the difference is that only, radiator 1 here is paster antenna.The antenna mainly wraps
Include by dielectric material plate support positioned at the sheet metal of the dielectric material plate surface and on the dielectric material plate with the gold
Belong to piece with respect to the microwave excitation structure on another side.Spacing between the paster antenna center adjacent along Z axis is that work is micro-
The 3/5 ~ 9/10 of the wavelength of wave free space.Spacing between the paster antenna center adjacent along X-axis is less than operational microwave
The half of the wavelength of free space.The shape of the paster antenna is rectangle.
Different from the rectangular waveguide of TE10 mould is propagated in embodiment 5, any paster antenna here passes through two and X
The vertical long side microwave radiation energy of axis.
Embodiment 7
As shown in Figs. 13 and 14.
It compared with embodiment 5, the difference is that only, radiator 1 here is coaxial antenna.It is described along X-axis phase
Adjacent and between the adjacent coaxial antenna center of Z axis spacing is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.It is located at
Belong to the microwave of the radiation of radiator 1 of same row on same radiating curtain along Z axis arrangement at the center along X-axis of each radiator 1
The component of electric field in the X-axis direction on line is zero.Belong to the radiator of same a line along X-axis arrangement on same radiating curtain
Electric field component in the Z-axis direction of the microwave of 1 radiation on the center line along Z axis of each radiator 1 is zero.Positioned at the radiation
Belong to along X-axis arrangement that the amplitude of microwave of two coaxial antennas radiation of arbitrary neighborhood with a line is identical and phase on array
On the contrary.Along two adjacent coaxial aerial radiations of the arbitrary neighborhood for belonging to same row of Z axis arrangement on same radiating curtain
Microwave amplitude is identical and opposite in phase.
Embodiment 8
As shown in figs.
Compared with embodiment 7, the difference is that only, 3 bottom of heating chamber be additionally provided with cylindrical body A 5A and
Rectangular 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 is translated along the side of the rectangular block A 6A and is driven the turntable 4 to rotate and translate.Here the cylindrical body A 5A is straight
It connects and is connect with the shaft of motor.
Embodiment 9
As shown in figure 17.
It compared with embodiment 8, the difference is that only, 3 bottom of heating chamber be provided with cylindrical body A 5A and square
Shape block A 6A, rectangular block B 6B and two fixing axle 6C.The cylindrical body A 5A is rotated around the axis of the cylindrical body A 5A, is led to
It crosses the fixing axle 6C and rectangular block B 6B and drives the rectangular block A 6A translation, so that the turntable 4 be driven to rotate and along preceding
Rear direction is swung.Here the cylindrical body A 5A is directly connect with the shaft of motor.
Embodiment 10
As shown in Figures 18 and 19.
It compared with embodiment 5, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 5 is provided with the cylindrical body B 5B for being fixed on 3 bottom of heating chamber in 3 bottom of heating chamber.The cylindrical body 5
Outer edge is contacted with the outer edge of the cylindrical body B 5B.The outer edge of the cylindrical body 5 is along the outside of the cylindrical body B 5B
Along rolling, to drive axis precession of the turntable 4 while rotation around own axes around the cylindrical body B 5B.Here
The cylindrical body 5 is directly connect with the shaft of motor.Axis of the motor with the cylindrical body 5 around the cylindrical body B 5B exists
It is moved on circumference.
Embodiment 11
As shown in figs 20 and 21.
It compared with embodiment 10, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 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 contacted respectively with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7.The cylinder
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, institute
State axis precession of the axis around the cylindrical body A 5A of turntable 4.Here the cylindrical body A 5A directly with the shaft of motor
Connection.
Embodiment 12
As depicted in figures 22 and 23.
It compared with embodiment 10, the difference is that only, radiator 1 here is paster antenna.The antenna is main
Including by dielectric material plate support positioned at the sheet metal of the dielectric material plate surface and on the dielectric material plate with this
Sheet metal is with respect to the microwave excitation structure on another side.Spacing between the paster antenna center adjacent along Z axis is work
The 3/5 ~ 9/10 of the wavelength of microwave free space.It is micro- that spacing between the paster antenna center adjacent along X-axis is less than work
The half of the wavelength of wave free space.The shape of the paster antenna is rectangle.
Here any paster antenna passes through two long side microwave radiation energy vertical with X-axis.
Embodiment 13
As shown in FIG. 24 and 25.
It compared with embodiment 12, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 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 contacted respectively with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7.The cylinder
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, institute
State axis precession of the axis around the cylindrical body A 5A of turntable 4.Here the cylindrical body A 5A directly with the shaft of motor
Connection.
Embodiment 14
As shown in figures 26 and 27.
It compared with embodiment 10, the difference is that only, radiator 1 here is coaxial antenna.It is described along X-axis phase
Adjacent and between the adjacent coaxial antenna center of Z axis spacing is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.It is located at
Belong to the microwave of the radiation of radiator 1 of same row on same radiating curtain along Z axis arrangement at the center along X-axis of each radiator 1
The component of electric field in the X-axis direction on line is zero.Belong to the radiator of same a line along X-axis arrangement on same radiating curtain
Electric field component in the Z-axis direction of the microwave of 1 radiation on the center line along Z axis of each radiator 1 is zero.Positioned at the radiation
Belong to along X-axis arrangement that the amplitude of microwave of two coaxial antennas radiation of arbitrary neighborhood with a line is identical and phase on array
On the contrary.Along two adjacent coaxial aerial radiations of the arbitrary neighborhood for belonging to same row of Z axis arrangement on same radiating curtain
Microwave amplitude is identical and opposite in phase.
Embodiment 15
As shown in Figure 28 and Figure 29.
It compared with embodiment 14, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 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 contacted respectively with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7.The cylinder
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, institute
State axis precession of the axis around the cylindrical body A 5A of turntable 4.Here the cylindrical body A 5A directly with the shaft of motor
Connection.
Embodiment 16
As shown in figs. 30 and 31.
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 vertically parallel with heating chamber 3.This arrangement is being heated
In chamber 3, the microwave field of the main operation modes TE40 mode of incidence wave from back to front and back wave from back to front is not with height
Degree variation, electric field only have vertical direction component, ensure that heating in the uniformity of vertical direction.The turntable 4 is around the turntable 4
The axis of the rotation turntable 4 simultaneously of axis translated along Y-axis, ensure that heating uniformity in the horizontal plane.
Embodiment 17
As shown in figures 32 and 33.
It compared with embodiment 16, 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 is direct
It is connect with the shaft of motor.
Embodiment 18
As shown in FIG. 34 and 35.
It compared with embodiment 16, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 5 is provided with the cylindrical body B 5B for being fixed on 3 bottom of heating chamber in 3 bottom of heating chamber.The cylindrical body 5
Outer edge is contacted with the outer edge of the cylindrical body B 5B.The outer edge of the cylindrical body 5 is along the outside of the cylindrical body B 5B
Along rolling, to drive axis precession of the turntable 4 while rotation around own axes around the cylindrical body B 5B.Here
The cylindrical body 5 is directly connect with the shaft of motor.Axis of the motor with the cylindrical body 5 around the cylindrical body B 5B exists
It is moved on circumference.
Embodiment 19
As shown in figs. 36 and 37.
It compared with embodiment 16, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 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 contacted respectively with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7.The cylinder
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, institute
State axis precession of the axis around the cylindrical body A 5A of turntable 4.Here the cylindrical body A 5A directly with the shaft of motor
Connection.
Embodiment 20
As shown in figures 38 and 39.
It compared with embodiment 16, the difference is that only, radiator 1 here is paster antenna.The antenna is main
Including by dielectric material plate support positioned at the sheet metal of the dielectric material plate surface and on the dielectric material plate with this
Sheet metal is with respect to the microwave excitation structure on another side.Spacing between the paster antenna center adjacent along Z axis is work
The 3/5 ~ 9/10 of the wavelength of microwave free space.It is micro- that spacing between the paster antenna center adjacent along X-axis is less than work
The half of the wavelength of wave free space.The paster antenna is rectangle.
Embodiment 21
As shown in Figure 40 and 41.
It compared with embodiment 20, 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 is direct
It is connect with the shaft of motor.
Embodiment 22
As shown in Figure 42 and 43.
It compared with embodiment 20, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 5 is provided with the cylindrical body B 5B for being fixed on 3 bottom of heating chamber in 3 bottom of heating chamber.The cylindrical body 5
Outer edge is contacted with the outer edge of the cylindrical body B 5B.The outer edge of the cylindrical body 5 is along the outside of the cylindrical body B 5B
Along rolling, to drive axis precession of the turntable 4 while rotation around own axes around the cylindrical body B 5B.Here
The cylindrical body 5 is directly connect with the shaft of motor.Axis of the motor with the cylindrical body 5 around the cylindrical body B 5B exists
It is moved on circumference.
Embodiment 23
As shown in figures 44 and 45.
It compared with embodiment 20, the difference is that only, be provided on the axis vertically of the turntable 4
Cylindrical body 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 contacted respectively with the inside edge of the outer edge of the cylindrical body A 5A and the circular hole of the fixed plate 7.The cylinder
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, institute
State axis precession of the axis around the cylindrical body A 5A of turntable 4.Here the cylindrical body A 5A directly with the shaft of motor
Connection.
Claims (10)
1. a kind of rectangle battle array presents type micro-wave heating furnace, which is characterized in that including heating chamber (3), at least one radiating curtain；Institute
Stating at least one radiating curtain includes at least two row radiators (1) along Z axis；The radiating curtain passes through floor (2) Xiang Suoshu
Heating chamber (3) microwave radiation energy；Radiator (1) on any radiating curtain all uniformly divides in X direction and along Z-direction
Cloth；X-axis, Y-axis and Z axis form right angle coordinate system.
2. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that on same radiating curtain
The microwave radiated in all radiators (1) is coherent wave；Belong to all of same a line along X-axis arrangement on same radiating curtain
The amplitude of the microwave of radiator (1) radiation is identical and phase is identical.
3. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that at least one described radiating curtain
It further include at least two column radiators (1) along X-axis；Belong to any of same row along Z axis arrangement on same radiating curtain
The amplitude of the microwave of adjacent two radiators (1) radiation is identical and opposite in phase.
4. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that any radiator (1) is
Rectangular waveguide or rectangular waveguide loudspeaker；The mode of microwave is basic mode TE10 mode in the rectangular waveguide or rectangular waveguide loudspeaker；
The length Lz of the rectangular waveguide or rectangular waveguide loudspeaker radiation opening's edge Z axis is the 3/5 ~ 9/ of the wavelength of operational microwave free space
10 times；The rectangular waveguide or the length Lx of rectangular waveguide loudspeaker radiation opening's edge X-axis are less than the wavelength of operational microwave free space.
5. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that any radiator (1) is
Paster antenna；Spacing between the rectangular patch antenna center adjacent along Z axis is the wavelength of operational microwave free space
3/5 ~ 9/10 times；Spacing between the rectangular patch antenna center adjacent along X-axis is less than the wave of operational microwave free space
Long half.
6. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that any radiator (1) is
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
The 3/5 ~ 9/10 of wavelength；Belong to the microwave of radiator (1) radiation 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；Along X-axis on same radiating curtain
Arrangement belongs to electricity of the microwave of all radiator (1) radiation of same a line on the center line along Z axis of each radiator (1)
The component of field in the Z-axis direction is zero.
7. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that the number of the radiating curtain is
1；The shape of the heating chamber (3) is cuboid；The shape of the heating chamber (3) is cuboid；One radiating curtain position
Above the heating chamber (3) of rectangle battle array feedback type micro-wave heating furnace, microwave energy is radiated to the heating chamber (3) from the top down
Amount；The a line from back to front of the Z-direction and the heating chamber (3) is parallel.
8. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that the shape of the heating chamber (3)
For cuboid；One radiating curtain is located at behind the heating chamber (3), radiates microwave energy to heating chamber (3) from back to front
Amount, while being located at before the heating chamber (3) there are also another radiating curtain, microwave is radiated to heating chamber (3) from front to back
Energy；The a line from front to back of the Z-direction and the heating chamber (3) is parallel.
9. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that further include being located at heating chamber (3)
The turntable (4) of bottom；The shape of the heating chamber (3) is cuboid；It is described when the rectangle battle array feedback type micro-wave heating furnaceman makees
Center axis rotation vertically of the turntable (4) around the turntable (4)；The central axis vertically of the turntable (4)
The swing in the heating chamber (3) simultaneously；The central axis vertically of the turntable (4) is in the heating chamber (3)
The amplitude of oscillation of middle swing is equal to the integral multiple of operational microwave the distance between certain adjacent electric field maximum point along the longitudinal direction.
10. rectangle battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that further include being located at heating chamber (3)
The turntable (4) of bottom；The shape of the heating chamber (3) is cuboid；The center axis rotation vertically of the turntable (4)
While around the heating chamber (3) center line precession vertically；The central axis vertically of the turntable (4)
While rotation around the diameter of the center line precession vertically of the heating chamber (3) be operational microwave along the longitudinal direction certain
1.414 times of integral multiple of the distance between adjacent electric field maximum point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380217.4A CN109951911A (en) | 2018-11-20 | 2018-11-20 | Rectangle battle array presents type micro-wave heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380217.4A CN109951911A (en) | 2018-11-20 | 2018-11-20 | Rectangle battle array presents type micro-wave heating furnace |
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| CN109951911A true CN109951911A (en) | 2019-06-28 |
Family
ID=67005905
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811380217.4A Withdrawn CN109951911A (en) | 2018-11-20 | 2018-11-20 | Rectangle battle array presents type micro-wave heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405700A (en) * | 2020-03-23 | 2020-07-10 | 成都赛纳微波科技有限公司 | Broadband band-stop microwave heating equipment |
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| US20020158066A1 (en) * | 1998-02-19 | 2002-10-31 | Siemens Aktiengesellschaft | Furnace for microwave sintering of nuclear fuel |
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