CN109548217A - Transverse field patch antenna array microwave oven - Google Patents
Transverse field patch antenna array microwave oven Download PDFInfo
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- CN109548217A CN109548217A CN201811380173.5A CN201811380173A CN109548217A CN 109548217 A CN109548217 A CN 109548217A CN 201811380173 A CN201811380173 A CN 201811380173A CN 109548217 A CN109548217 A CN 109548217A
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- heating chamber
- axis
- microwave
- antenna array
- patch antenna
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/72—Radiators or antennas
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/70—Feed lines
- H05B6/707—Feed lines using waveguides
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The present invention has as often as possible motivated higher mode TEn0 mode (n is more than or equal to 2) at the rear of the heating chamber of transverse field patch antenna array microwave oven or top using one to two radiating curtain, to form standing wave in the heating chamber.The present invention includes heating chamber, at least one radiating curtain.At least one described radiating curtain includes at least two row radiators 1 along Z axis.Any radiator is paster antenna.Spacing between the paster antenna center adjacent along X-axis is less than the half of the wavelength of operational microwave free space.The radiating curtain passes through floor to the heating chamber microwave radiation energy.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 passes through the microwave mode in the cavity of control transverse field patch antenna array microwave oven to improve the uniformity of the heating of transverse field patch antenna array microwave oven 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 transverse field patch antenna array microwave oven, including heating chamber and at least one radiating curtain.It is described at least one
Radiating curtain includes at least two row radiators along Z axis.The radiating curtain radiates microwave energy to the heating chamber by floor
Amount.In common microwave stove, magnetron is by waveguide and a coupling aperture to heating chamber radiation energy.The present invention is by using edge
The multirow radiator of Z-direction more effectively controls the microwave distribution in heating chamber, improves the uniformity of heating.
Can also include multiple row radiator in X direction: at least one described radiating curtain includes at least two column along X-axis
Radiator 1.The radiating curtain passes through floor to the heating chamber microwave radiation energy.
In order to allow microwave field the communication process being distributed in heating chamber in remain unchanged as far as possible, any radiating curtain
On radiator be all uniformly distributed in X direction and along Z-direction.Meanwhile the spoke in all radiators on same radiating curtain
The microwave penetrated is coherent wave.Belong to the microwave of all radiators radiation of same a line along X-axis arrangement on same radiating curtain
Amplitude it is identical and phase is identical.Along the two of the arbitrary neighborhood for belonging to same row of Z axis arrangement on same radiating curtain
The amplitude of the microwave of a radiator radiation is identical, opposite in phase.Above-mentioned arrangement, it is therefore an objective to motivated in heating chamber to heating chamber
Some higher mode for the waveguide defined by the cross section vertical with the direction of the heating chamber that certain interior direction is propagated, and its
Its mode is not motivated as far as possible.
In order to simplify structure, we can also set on same radiating curtain belong to along adjacent two of Z axis it is same
The amplitude of the microwave of the radiator radiation of column is identical, and phase is identical.
Further, we allow each radiator to be located at same by the mode and field distribution of microwave in each radiator of control
Belong to center line along Z axis one side of the microwave in each radiator of the radiator radiation of same a line on radiating curtain along X-axis arrangement
On electric field component in the Z-axis direction be zero.
The radiator is paster antenna.The antenna mainly includes being supported by dielectric material plate positioned at the dielectric material plate table
Microwave excitation on the sheet metal radiator in face and another side opposite with the sheet metal radiator 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, paster antenna here is rectangle.
A kind of design scheme, the number of the radiating curtain are 1.One radiating curtain is located at the transverse field patch
Above the heating chamber of antenna array microwave oven, from the top down to the heating chamber microwave radiation energy.The shape of the heating chamber
Shape is cuboid.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 transverse field patch day
Behind the heating chamber of linear array microwave oven, from back to front to heating chamber microwave radiation energy or the radiation battle array
Column are located at before the heating chamber of the transverse field patch antenna array microwave oven, radiate from front to back to heating chamber
Microwave energy.The shape of the heating chamber is cuboid.The a line from front to back of the Z-direction and the heating chamber is flat
Row.
The third design scheme, the number of the radiating curtain are 2.One of radiating curtain is located at transverse field patch
Behind the heating chamber of chip antenna battle array microwave oven, from back to front to heating chamber microwave radiation energy, another radiation
Array is located at before the heating chamber of the transverse field patch antenna array microwave oven, from front to back to heating chamber spoke
Penetrate microwave energy.The shape of the heating chamber is cuboid.The a line from front to back of the Z-direction and the heating chamber
In parallel.Compared with above two design scheme, the design scheme is slightly complicated.But we can allow two radiating curtains in institute
The electric field maximal point for stating the microwave of the standing wave form formed in heating chamber is mutually staggered in the heating chamber, to further improve
The uniformity of microwave field in the heating chamber.Here the microwave source of two radiating curtains can be it is relevant each other, can also be with
From two mutual independent microwave sources.
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 being located at heating chamber bottom to further improve the uniformity of heating.The transverse field patch
It is described around the center axis rotation vertically when antenna array microwave oven works.
In general existing scheme, position of the axis in the heater is fixed.On the axis
It is material-to-be-heated can not by it is described reach around the center axis rotation vertically be evenly heated.
For this purpose, the present invention allow the central axis vertically simultaneously the swing in the heating chamber (3).Institute
The amplitude of oscillation for the swing in the heating chamber of central axis vertically stated is equal to operational microwave certain phase along the longitudinal direction
The integral multiple of the distance between adjacent electric field maximum point.
In order to realize the function of the swing in the heating chamber of central axis vertically, in the present invention
Devise three schemes:
The first string is provided with cylindrical body on the axis of the vertical direction, is provided in the heating chamber bottom solid
It is scheduled on the rectangular block of the heating chamber bottom.The cylindrical body outer edge contacts on one side with the rectangular block.The cylindrical body
Outer edge along the rectangular block rolling on one side, thus drive it is described while rotated around own axes along the one of the rectangular block
Side translation.Here the cylindrical body can directly be connect with the shaft of motor.The motor it is mobile with the cylindrical body and
Its rotation direction is periodically reversed.Motor can also be fixed on the transverse field patch antenna array microwave oven, be led to
It crosses soft rod or soft stick and sends torque to the cylindrical body.
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 that the rotation is translated and driven along the side of the rectangular block A and translating.
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 rotation 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 while around the heating chamber vertical direction
Center line precession.The diameter of the center line precession of vertical direction of the central axis vertically around the heating chamber
Equal to 1.414 times of the integral multiple of operational microwave the distance between certain adjacent electric field maximum point along the longitudinal direction.
In order to realize it is described along the center axis rotation of its vertical direction while around the heating chamber vertical direction
Center line precession, there are two schemes for we:
The first string is provided with cylindrical body on the axis of the vertical direction, is provided in the heating chamber bottom solid
It is scheduled on the cylindrical body B of the heating chamber bottom.The cylindrical body outer edge is contacted with the outer edge of the cylindrical body B.The circle
The outer edge of cylinder is rolled along the outer edge of the cylindrical body B, thus around described while rotation described in driving around own axes
The axis precession of cylindrical body B.Here the cylindrical body can directly be connect with the shaft of motor.The motor is with the cylinder
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, is arranged in the heating chamber bottom
There are cylindrical body A and inside to open round-meshed fixed plate.The outer edge of the cylindrical body respectively with the outer edge of the cylindrical body A and
The inside edge of the circular hole of the fixed plate contacts.The cylindrical body A is rotated around the axis of the cylindrical body A, is driven described around institute
While the axis rotation stated, axis precession of the axis around the cylindrical body A.Here the cylindrical body A can be straight
It connects and is connect with the shaft of motor.
It is above-mentioned make the axis mobile or each scheme of precession in, the edge of the cylinder to contact with each other and rectangular block
Side is generally mutually twisted with dentalation realization and transmits torque.Under normal circumstances, all in the present invention, cylindrical body, circle
Cylinder A, B, rectangular block, rectangular block A, B, fixing axle, fixed plate are all low-loss nonmetallic materials.
Transverse field patch antenna array microwave oven of the invention can also increase respectively in the front and back of its heating chamber
Add inlet port and outlet port and the conveyer belt through feed inlet, heating chamber and discharge port.It is material-to-be-heated to be passed by feed inlet
It send band to be sent in heating chamber to take out after heating from discharge port.It is material-to-be-heated in order to prevent to infect the transverse field paster antenna
The other parts or component of battle array microwave oven can be divided in the heating chamber using the partition of various low lossy microwaves
Area.
In the present invention, we use one to two radiating curtain adding in transverse field patch antenna array microwave oven
The higher mode of a certain waveguide has as often as possible been motivated in hot chamber, and is forming standing wave in the heating chamber.With traditional microwave
Multiple mode of resonance phases that microwave source motivates respective energy uncontrollable simultaneously by waveguide and coupling aperture in heating chamber in furnace
Than the field distribution of operating mode of the invention is determining and can be controlled.In order to further improve the equal of heating
Even property, we used can with anterior-posterior translation or can be around the rotating circular disk of the vertical axis precession of heating chamber.
The feeding network of radiating curtain of the invention can use for reference the feeding network of common aerial array, using waveguide,
Micro-strip or splitter with wire realize the distribution of power and the feed to each radiator.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.
Fig. 1 is the schematic diagram of the radiating curtain of embodiment 1.
Fig. 2 is the AA direction schematic diagram of Fig. 1.
Fig. 3 is the schematic diagram of the radiating curtain of embodiment 2.
Fig. 4 is the AA direction schematic diagram of Fig. 3.
Fig. 5 is the schematic diagram of the radiating curtain of embodiment 3.
Fig. 6 is the AA direction schematic diagram of Fig. 5.
Fig. 7 is the schematic diagram of embodiment 4.
Fig. 8 is the AA direction schematic diagram of Fig. 7.
Fig. 9 is the schematic diagram of embodiment 5.
Figure 10 is the AA direction schematic diagram of Fig. 9.
Figure 11 is the schematic diagram of embodiment 6.
Figure 12 is the AA direction schematic diagram of Figure 11.
Figure 13 is the schematic diagram of embodiment 7.
Figure 14 is the AA direction schematic diagram of Figure 13.
Figure 15 is the schematic diagram of embodiment 8.
Figure 16 is the AA direction schematic diagram of Figure 15.
Figure 17 is the schematic diagram of embodiment 9.
Figure 18 is the AA direction schematic diagram of Figure 17.
Figure 19 is the schematic diagram of embodiment 10.
Figure 20 is the AA direction schematic diagram of Figure 19.
Label and corresponding parts title in attached drawing: 1- radiator, the floor 2-, 3- heating chamber, 4-, 5- cylindrical body, 5A-
Cylindrical body A, 5B- cylindrical body B, 6- rectangular block, 6A- rectangular block A, 6B- rectangular block B, 6C- fixing axle, 7- fixed plate.
Arrow in each radiator radiation port or near radiation port indicates the power line direction of microwave.The front of heating chamber
Refer to that the slave paper of heating chamber is directed toward the direction of reader.The rear of heating chamber refers to the direction that paper is directed toward from reader of heating chamber.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail.Exemplary embodiment and its explanation of the invention for explaining only the invention, is not made
For limitation of the invention.
Embodiment 1
Such as Fig. 1 and 2.
One radiating curtain, including 4 rows along Z axis, the 8 column radiators 1 along X-axis.The radiating curtain passes through floor 2 to institute
State heating chamber microwave radiation energy.
Radiator 1 on the radiating curtain is all uniformly distributed in X direction and along Z-direction.Meanwhile being located at the radiating curtain
On all radiators 1 in the microwave that radiates be coherent wave.Belong to all of same a line along X-axis arrangement on the radiating curtain
The amplitude for the microwave that radiator 1 radiates is identical and phase is identical.Along any two that Z axis is adjacent on same radiating curtain
The amplitude for belonging to the microwave of the radiation of radiator 1 of same row is identical, opposite in phase.
The microwave that all radiators 1 on the radiating curtain radiate is in each radiator 1 along the center line on Z axis one side
Direction of an electric field is directed toward X-direction.
Any radiator 1 is rectangular waveguide.The operating mode of microwave is basic mode TE10 mode in the rectangular waveguide.
The length Lz of the rectangular waveguide opening's edge Z axis is the 3/5 ~ 9/10 of the wavelength of operational microwave free space.The square
The length Lx of shape waveguide opening's edge X-axis is less than the half of the wavelength of operational microwave free space.
Embodiment 2
As shown in Figures 3 and 4.
Compared with embodiment 1, the difference is that only: radiator 1 is paster antenna.The antenna mainly includes by medium
Plate of material support positioned at the sheet metal radiator of the dielectric material plate surface and on the dielectric material plate with the metal
Microwave excitation structure on the opposite another side of piece radiator.Spacing between the paster antenna center adjacent along Z axis is
The 3/5 ~ 9/10 of the wavelength of operational microwave free space.Spacing between the paster antenna center adjacent along X-axis is less than work
Make the half of the wavelength of microwave free space.The paster antenna is rectangle.
Different from the rectangular waveguide of TE10 mould is propagated in embodiment 1, paster antenna here is hung down by two with X-axis
Straight long side microwave radiation energy.
Embodiment 3
As illustrated in Figures 5 and 6.
A kind of transverse field patch antenna array microwave oven, including heating chamber 3 and a radiating curtain.The radiating curtain
For along 4 rows of Z axis, along 8 column radiators 1 of X-axis.The radiating curtain is placed in the top of the heating chamber 3, passes through floor 2
From the top down to 3 microwave radiation energy of heating chamber.Heating chamber 3 is cuboid.Z axis and the cuboid heating chamber 3 from
Forward a line is parallel afterwards.
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 positioned at the 4 of 3 bottom of heating chamber.The transverse field patch antenna array microwave oven work when, described 4 around
Described 4 center axis rotation vertically.
The swing in the heating chamber 3 of described 4 central axis vertically.The amplitude of oscillation of the swing is equal to work
The integral multiple of 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 described 4 vertical direction, it is provided in 3 bottom of heating chamber solid
It is scheduled on the rectangular block 6 of 3 bottom of heating chamber.5 outer edge of cylindrical body contacts on one side with the rectangular block 6.The circle
5 outer edge of cylinder along the rectangular block 6 rolling on one side, thus drive described 4 while rotated around own axes along the square
The translation on one side of shape block 6.Here the cylindrical body 5 can directly be connect with the shaft of motor.The motor is with the cylinder
Body 5 is mobile and its rotation direction is periodically reversed.Motor can also be fixed on to the transverse field patch antenna array microwave
On heating furnace, the cylindrical body 5 to is sent torque by soft rod or soft stick.
Embodiment 4
As shown in FIG. 7 and 8.
It compared with embodiment 3, 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 3, any paster antenna here passes through two and X
The vertical long side microwave radiation energy of axis.
Embodiment 5
As shown in Figures 9 and 10.
It compared with embodiment 4, the difference is that only, be provided with cylindrical body on the axis of described 4 vertical direction
5, the cylindrical body B 5B for being fixed on 3 bottom of heating chamber is provided in 3 bottom of heating chamber.5 outer edge of cylindrical body
It is contacted with the outer edge of the cylindrical body B 5B.The outer edge of the cylindrical body 5 is rolled along the outer edge of the cylindrical body B 5B,
Around the axis precession of the cylindrical body B 5B while to drive described 4 to rotate around own axes.Here the cylindrical body 5
It can directly be connect with the shaft of motor.The motor with the cylindrical body 5 around the cylindrical body B 5B axis circumferentially
Movement.
Embodiment 6
As shown in FIG. 11 and 12.
It compared with embodiment 5, the difference is that only, be provided with cylindrical body on the axis of described 4 vertical direction
5,3 bottom of heating chamber is provided with cylindrical body A 5A and round-meshed fixed plate 7 is opened in inside.The outside of the cylindrical body 5
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
Axis around the cylindrical body A 5A rotates, and while drive described 4 is around described 4 axis rotation, described 4 axis is around described
The axis precession of cylindrical body A 5A.Here the cylindrical body A 5A can directly be connect with the shaft of motor.
Embodiment 7
As shown in Figs. 13 and 14.
It compared with embodiment 4, 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.Described 4 around described 4 axis rotation
Described 4 axis is translated along Y-axis simultaneously, ensure that the uniformity of heating in the horizontal plane.
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 described 4 to rotate and translate.Here the cylindrical body A 5A can be direct
It is connect with the shaft of motor.
Embodiment 9
As shown in FIG. 17 and 18.
It compared with embodiment 7, the difference is that only, be provided with cylindrical body on the axis of described 4 vertical direction
5, the cylindrical body B 5B for being fixed on 3 bottom of heating chamber is provided in 3 bottom of heating chamber.5 outer edge of cylindrical body
It is contacted with the outer edge of the cylindrical body B 5B.The outer edge of the cylindrical body 5 is rolled along the outer edge of the cylindrical body B 5B,
Around the axis precession of the cylindrical body B 5B while to drive described 4 to rotate around own axes.Here the cylindrical body 5
It can directly be connect with the shaft of motor.The motor with the cylindrical body 5 around the cylindrical body B 5B axis circumferentially
Movement.
Embodiment 10
As shown in Figures 19 and 20.
It compared with embodiment 7, the difference is that only, be provided with cylindrical body on the axis of described 4 vertical direction
5,3 bottom of heating chamber is provided with cylindrical body A 5A and round-meshed fixed plate 7 is opened in inside.The outside of the cylindrical body 5
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
Axis around the cylindrical body A 5A rotates, and while drive described 4 is around described 4 axis rotation, described 4 axis is around described
The axis precession of cylindrical body A 5A.Here the cylindrical body A 5A can directly be connect with the shaft of motor.
Claims (8)
1. a kind of transverse field patch antenna array microwave oven, which is characterized in that including heating chamber (3), at least one radiation battle array
Column；At least one described radiating curtain includes at least two row radiators (1) along Z axis；Any radiator (1) is patch day
Line；Spacing between the paster antenna center adjacent along X-axis is less than the half of the wavelength of operational microwave free space；It is described
Radiating curtain passes through floor (2) Xiang Suoshu heating chamber microwave radiation energy；X-axis, Y-axis and Z axis form right angle coordinate system.
2. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that at least one described spoke
Penetrating array further includes at least two column radiators (1) along X-axis；Belong to same row along Z axis arrangement on same radiating curtain
Arbitrary neighborhood the radiation of two radiators (1) microwave amplitude is identical and opposite in phase.
3. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that be located at same radiation battle array
Belong to center line along Z axis one side of the microwave in each radiator (1) of radiator (1) radiation of same a line on column along X-axis arrangement
On electric field component in the Z-axis direction be zero.
4. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that described adjacent along Z axis
Paster antenna center between spacing be 3/5 ~ 9/10 times of wavelength of operational microwave free space.
5. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that the heating chamber (3)
Shape be cuboid；The number of the radiating curtain is 1；One radiating curtain is located at the transverse field patch antenna array
Above the heating chamber (3) of microwave oven, from the top down to the heating chamber (3) microwave radiation energy；The Z-direction and institute
The a line from back to front for stating heating chamber (3) is parallel.
6. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that the heating chamber (3)
Shape be cuboid；One radiating curtain is located at behind the heating chamber (3), radiates from back to front to heating chamber (3) micro-
Wave energy can also have another radiating curtain to be located at before the heating chamber (3) simultaneously, from front to back to heating chamber (3)
Microwave radiation energy；The a line from front to back of the Z-direction and the heating chamber (3) is parallel.
7. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that further include being located at heating
Chamber (3) bottom；The transverse field patch antenna array microwave oven work when, (4) around (4) vertically
Center axis rotation；The central axis vertically of (4) swing in the heating chamber (3) simultaneously；(4)
The amplitude of oscillation of the swing in the heating chamber (3) of central axis vertically be equal to operational microwave certain phase along the longitudinal direction
The integral multiple of the distance between adjacent electric field maximum point.
8. transverse field patch antenna array microwave oven according to claim 1, which is characterized in that further include being located at heating
(4) of chamber (3) bottom；Around the vertical direction of the heating chamber (3) while the center axis rotation vertically of (4)
Center line precession；Around the vertical direction of the heating chamber (3) while the center axis rotation vertically of (4)
The diameter of center line precession is 1.414 times of the distance between certain adjacent electric field maximum point along the longitudinal direction of operational microwave
Integral multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380173.5A CN109548217A (en) | 2018-11-20 | 2018-11-20 | Transverse field patch antenna array microwave oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380173.5A CN109548217A (en) | 2018-11-20 | 2018-11-20 | Transverse field patch antenna array microwave oven |
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| CN109548217A true CN109548217A (en) | 2019-03-29 |
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| CN201811380173.5A Withdrawn CN109548217A (en) | 2018-11-20 | 2018-11-20 | Transverse field patch antenna array microwave oven |
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| CN (1) | CN109548217A (en) |
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| CN205723949U (en) * | 2016-05-05 | 2016-11-23 | 桂林电子科技大学 | A kind of K-band Microstrip Antenna Array |
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Application publication date: 20190329 |