CN109945250A - Uniform battle array presents type micro-wave heating furnace - Google Patents
Uniform battle array presents type micro-wave heating furnace Download PDFInfo
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- CN109945250A CN109945250A CN201811380152.3A CN201811380152A CN109945250A CN 109945250 A CN109945250 A CN 109945250A CN 201811380152 A CN201811380152 A CN 201811380152A CN 109945250 A CN109945250 A CN 109945250A
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Abstract
The present invention uses one to two radiating curtain as often as possible motivate higher mode TEn0 mode (n for integer, more than or equal to 2), to form standing wave in the heating chamber at the rear of the heating chamber of uniform battle array feedback type micro-wave heating furnace or top.The present invention includes heating chamber, at least one radiating curtain.The radiating surface of the radiating curtain is overlapped with one face of heating chamber and size is identical.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 controlling uniform battle array to improve the uniformity that uniform 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 uniform battle array feedback type micro-wave heating furnace, including heating chamber, at least one radiating curtain.Spoke on the radiating curtain
Emitter is all uniformly distributed in X direction and along Z-direction.The radiating curtain includes the n row along Z axis and the m column radiator along X-axis, m
It is integer more than or equal to 2, n, is more than or equal to 2.The radiating curtain passes through floor to the heating chamber microwave radiation energy.It is located at
The microwave radiated in all radiators on same radiating curtain is coherent wave.The shape of the heating chamber is cuboid.It is described
The radiating surface of radiating curtain is overlapped with one face of heating chamber and size is identical.That is, the length in one face of heating chamber
Degree is identical as the length of the corresponding sides of the radiating curtain, and the length is period of the radiating element in the length direction
Integral multiple, and the width in the heating chamber face is the of same size of the another side of the radiating curtain, and the width is
Integral multiple of the radiating element in the period of the width direction.This arrangement is conducive to motivate single mode in the heating chamber
TEn0 mode is conducive to the uniformity for improving the heating of uniform battle array feedback type micro-wave heating furnace.
In order to allow microwave field the communication process being distributed in heating chamber in remain unchanged as far as possible, be located at same radiating curtain
On belong to along X-axis arrangement it is identical and phase is identical with the amplitude of microwave of all radiators of a line radiation.Positioned at same spoke
The amplitude penetrated on array along the microwave of two radiators radiation of the arbitrary neighborhood for belonging to same row of Z axis arrangement is identical, phase
On the contrary.Above-mentioned arrangement, it is therefore an objective to motivated that into heating chamber certain direction propagates in heating chamber by the heating chamber and the party
Some higher mode of the waveguide defined to vertical cross section, and other modes are 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 1.One radiating curtain is located at the uniform battle array and presents formula
Above the heating chamber of microwave oven, from the top down to the heating chamber microwave radiation energy.The shape of the heating chamber is square
Body.The a line from back to front of the Z-direction and the heating chamber is parallel.
Another design scheme, the number of the radiating curtain are 1.The radiating curtain is located at the uniform battle array feedback and declines
Behind the heating chamber of Wave heating furnace, it is located at from back to front to heating chamber microwave radiation energy or the radiating curtain
Before the heating chamber of the uniform battle array feedback type micro-wave heating furnace, from front to back to heating chamber microwave radiation energy.It is described
The shape of heating chamber is cuboid.The a line from front to back of the Z-direction and the heating chamber is parallel.
The third design scheme, the number of the radiating curtain are 2.One of radiating curtain is located at the uniform battle array feedback
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 the uniform battle array feedback type micro-wave heating furnace, from front to back to heating chamber microwave radiation energy.Institute
The shape for stating heating chamber is cuboid.The a line from front to back of the Z-direction and the heating chamber is parallel.With above-mentioned two
Kind design scheme is compared, and the design scheme is slightly complicated.But we can allow two radiating curtains to be formed in the heating chamber
The electric field maximal point of microwave of standing wave form be mutually staggered in the heating chamber, to further improve micro- in the heating chamber
The uniformity of wave field.Here the microwave source of two radiating curtains can be it is relevant each other, can also be from two mutually
Independent microwave source.
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 uniform 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 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 the uniform battle array feedback type micro-wave heating furnace,
Torque is sent to the cylindrical body 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.
Uniform 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 uniform 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 uniform 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,
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 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 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 on the radiating curtain is all uniformly distributed in X direction and along Z-direction.Positioned at same
The microwave radiated in all radiators on one radiating curtain is coherent wave.The shape of the heating chamber is cuboid.The spoke
The radiating surface for penetrating array is overlapped with one face of heating chamber and size is identical.
It is identical to belong to the amplitude of microwave radiated with all radiators 1 of a line along X-axis arrangement on the radiating curtain
And phase is identical.Belong to the micro- of the radiation of radiator 1 of same row along the adjacent any two of Z axis on same radiating curtain
The amplitude of wave 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 uniform 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 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 the uniform battle array feedback type micro-wave heating furnaceman makees, the turntable 4
Around the center axis rotation vertically of 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 the uniform battle array feedback to decline
On Wave heating furnace, 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, 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.
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 here is coaxial antenna.It is described adjacent along X-axis
And the spacing between the adjacent coaxial antenna center of Z axis is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.Positioned at same
Belong to center line along X-axis of the microwave in each radiator 1 of the radiation of radiator 1 of same row on one radiating curtain along Z axis arrangement
On electric field component in the X-axis direction be zero.Belong to the radiator 1 of same a line along X-axis arrangement on same radiating curtain
The component of electric field of the microwave of radiation on the center line along Z axis of each radiator 1 in the Z-axis direction 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.
It compared with embodiment 7, 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 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 fixing axle 6C.The cylindrical body A 5A is rotated around the axis of the cylindrical body A 5A, passes through institute
It states fixing axle 6C and rectangular block B 6B and drives the rectangular block A 6A translation, to drive the turntable 4 to rotate and translate.Here
The cylindrical body A 5A can directly be 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 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 11
As shown in figs 20 and 21.
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 12
As depicted in figures 22 and 23.
It compared with embodiment 10, 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.
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 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
As shown in figures 26 and 27.
It compared with embodiment 10, the difference is that only, radiator 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 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 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 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 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 can be with
Directly 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 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 19
As shown in figs. 36 and 37.
It compared with embodiment 16, 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 20
As shown in figures 38 and 39.
It compared with embodiment 16, 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 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 can be with
Directly 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 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 23
As shown in figures 44 and 45.
It compared with embodiment 20, 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.
Claims (10)
1. a kind of uniform battle array presents type micro-wave heating furnace, which is characterized in that including heating chamber (3), at least one radiating curtain；Institute
The shape for stating heating chamber (3) is cuboid；Radiator (1) on the radiating curtain all uniformly divides in X direction and along Z-direction
Cloth；The radiating curtain includes the n row along Z axis and the m column radiator (1) along X-axis, and m is integer, is more than or equal to 2；N is integer,
More than or equal to 2；The radiating curtain passes through floor (2) Xiang Suoshu heating chamber microwave radiation energy；On same radiating curtain
All radiators (1) in radiate microwave be coherent wave；The radiating surface of the radiating curtain is overlapped with (3) faces of heating chamber
And size is identical；The X-axis, Y-axis and Z axis form right angle coordinate system.
2. uniform 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.
3. uniform battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that be located at edge on same radiating curtain
X-axis arrangement belongs to electricity along the center line on Z axis one side on of the microwave in each radiator (1) of radiator (1) radiation of same a line
The component of field in the Z-axis direction is zero.
4. uniform 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. uniform 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 paster antenna center adjacent along Z axis be the wavelength of operational microwave free space 3/5 ~
9/10 times；Spacing between the paster antenna center adjacent along X-axis is less than the half of the wavelength of operational microwave free space.
6. uniform 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 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 axis
Component on direction is zero.
7. uniform 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；One radiating curtain is located above the heating chamber (3) of the uniform battle array feedback type micro-wave heating furnace, from the top down to described
Heating chamber (3) microwave radiation energy；The a line from back to front of the Z-direction and the heating chamber (3) is parallel.
8. uniform battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that a radiating curtain is located at described
Behind heating chamber (3), from back to front to heating chamber (3) microwave radiation energy, there can also be another radiating curtain position simultaneously
Before the heating chamber (3), from front to back to heating chamber (3) microwave radiation energy；The Z-direction and the heating
The a line from front to back of chamber (3) is parallel.
9. uniform battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that further include being located at heating chamber bottom
Turntable；When the uniform battle array feedback type micro-wave heating furnaceman makees, the turntable (4) around the turntable (4) vertically
Center axis rotation；The swing in the heating chamber (3) simultaneously of the central axis vertically of the turntable (4)；It is described
The amplitude of oscillation of the central axis vertically of turntable (4) swing in the heating chamber (3) is equal to operational microwave along front and back
The integral multiple of the distance between the adjacent electric field maximum point in direction.
10. uniform battle array according to claim 1 presents type micro-wave heating furnace, which is characterized in that further include being located at heating chamber bottom
The turntable (4) in portion；Around the Vertical Square of the heating chamber (3) while the center axis rotation vertically of the turntable (4)
To center line precession；Around the vertical of the heating chamber (3) while the center axis rotation vertically of the turntable (4)
The center line precession in direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811380152.3A CN109945250A (en) | 2018-11-20 | 2018-11-20 | Uniform battle array presents type micro-wave heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811380152.3A CN109945250A (en) | 2018-11-20 | 2018-11-20 | Uniform battle array presents type micro-wave heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111294998A (en) * | 2020-03-23 | 2020-06-16 | 成都赛纳微波科技有限公司 | Separate and present formula microwave heating equipment |
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| CN1392362A (en) * | 2001-06-19 | 2003-01-22 | 季网宝 | Movable microwave oven rotary disc |
| CN104272866A (en) * | 2012-03-09 | 2015-01-07 | 松下电器产业株式会社 | Microwave heating device |
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Application publication date: 20190628 |