CN208353645U - A kind of double source double frequency micro-wave oven - Google Patents
A kind of double source double frequency micro-wave oven Download PDFInfo
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- CN208353645U CN208353645U CN201821181240.6U CN201821181240U CN208353645U CN 208353645 U CN208353645 U CN 208353645U CN 201821181240 U CN201821181240 U CN 201821181240U CN 208353645 U CN208353645 U CN 208353645U
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- 238000010438 heat treatment Methods 0.000 abstract description 18
- 230000000295 complement effect Effects 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
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- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
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Abstract
The utility model discloses a kind of double source double frequency micro-wave ovens, it includes the furnace body for offering furnace chamber, microwave magnetron source, solid state microwave sources and the fire door being arranged on furnace body, microwave magnetron source and solid state microwave sources are arranged in furnace chamber wall, and waveguide feed-in mouth and coaxial line feed-in mouth are provided on the inner surface of furnace chamber；Waveguide feed-in mouth is connect with microwave magnetron source；Coaxial line feed-in mouth is connect by coaxial low pass filter with solid state microwave sources.The utility model is designed reasonably, in conjunction with the characteristic of High power microwavs and low frequency microwave, them are allowed to work at the same time in the same cavity, so that the mode field that low frequency microwave evokes just makes up the feeble field part of High power microwavs, to reach complementary state, keep the intracorporal microwave field distribution of chamber uniform, achieve the purpose that be evenly heated food, and substantially increases the speed and heating quality of heating food.
Description
Technical field
The present invention relates to micro-wave oven technical fields, and in particular to a kind of double source double frequency micro-wave oven.
Background technique
General household microwave oven or industrial microwave oven are all to convert electrical energy into microwave using its internal magnetron, micro-
Wave penetrates food with certain frequency of oscillation.When microwave is by food absorption, due to a certain amount of moisture that contains in food, and
Water is made of polar molecule again, and this polar molecule interacts under microwave field, and the heat of generation makes foodstuff surface and interior
Portion is heated simultaneously, and heating rate is also fast, to realize the fast cooking of food.General micro-wave oven is by furnace body, furnace chamber, magnetic
The composition such as keyholed back plate, waveguide, power supply, fire door.Fire door not only can be used to control the leakage of microwave, can also constitute one with furnace chamber
The resonant cavity for determining space, the interaction for food and microwave field.
The micro-wave oven developed at present, the magnetron that business level product is substantially internal load 2450MHz frequency come real
Existing heating technique；Technical grade product generally uses the frequency of 915MHz.Generally speaking, they are all using single microwave source, list
One frequency cooks food.Although this single heating method can evoke the field of multiple modes in cavity, swash
The number of the mode field risen is limited after all, unavoidable to occur heating non-uniform ask since cavity internal schema is unevenly distributed
Topic.
Summary of the invention
For the above-mentioned deficiency of the prior art, the present invention provides a kind of double source double frequency micro-wave ovens.
To achieve the above object of the invention, the technical scheme adopted by the invention is as follows:
There is provided a kind of double source double frequency micro-wave oven comprising offer furnace body, the microwave magnetron source, solid state microwave sources of furnace chamber
With the fire door being arranged on furnace body, microwave magnetron source and solid state microwave sources are arranged in furnace chamber wall, on the inner surface of furnace chamber
It is provided with waveguide feed-in mouth and coaxial line feed-in mouth, and the opening of waveguide feed-in mouth and coaxial line feed-in mouth is towards in cavity；Wave
Feed-in mouth is led to connect by microwave waveguide transmission line with microwave magnetron source；Coaxial line feed-in mouth is by coaxial line transmission line and together
The connection of axis low-pass filter, coaxial low pass filter are connect by coaxial line transmission line with solid state microwave sources.
Further, it is separately installed with microwave waveguide driver on waveguide feed-in mouth and coaxial line feed-in mouth and coaxial line swashs
Encourage device；Microwave waveguide driver is connect by microwave waveguide transmission line with microwave magnetron source, and coaxial line excited device passes through coaxial
Line transmission line is connect with coaxial low pass filter.
Further, microwave waveguide driver is several coupling apertures opened up on microwave waveguide transmission line, and microwave waveguide passes
Defeated line is connect with microwave magnetron source.
Further, waveguide feed-in mouth and coaxial line feed-in mouth are opened on two opposite furnace chamber walls.
Further, waveguide feed-in mouth and coaxial line feed-in mouth are opened on two adjacent furnace chamber walls.
The invention has the benefit that this programme is tool there are two the micro-wave oven of microwave source, one is microwave magnetron source,
The other is solid state microwave sources；The working frequency of two kinds of microwave sources is not identical, and the working frequency in microwave magnetron source is high, and solid-state is micro-
The working frequency of wave source is low；The microwave of two kinds of frequencies motivates the field distribution of generation different in micro-wave oven furnace chamber, to different loads
The heating effect of situation is different；When two microwave sources work at the same time, the mode field in cavity is no longer single heating method.
The High power microwavs in microwave magnetron source can motivate multiple mode fields, but mode field number is limited, some region microwave field densities,
Some region microwave fields are weak；At this point, can just to make up high-frequency micro- for the mode field that the low frequency microwave of solid state microwave sources evokes
The feeble field part of wave field, keeps the microwave mode in cavity more；It can make the field distribution uniformity of microwave field in micro-wave oven
More preferably, and then to make to be heated food heated more evenly, improves heating quality and heating speed.
The working frequency of microwave magnetron source and solid state microwave sources is different, between coaxial line feed-in mouth and solid state microwave sources by
In having installed coaxial low pass filter additional, influence of the high-frequency microwave that can just inhibit microwave magnetron source to generate to Solid Source；
And the microwave of microwave waveguide feed-in mouth inhibits the low of the generation of solid state microwave sources using the high-pass filtering characteristic of its microwave waveguide
Influence of the frequency microwave to microwave magnetron source, avoids interfering with each other between microwave magnetron source and solid state microwave sources, makes two
Microwave source plays maximum effect.
Microwave waveguide feed-in mouth and coaxial line feed-in mouth are separately positioned on two different inner walls of cavity, and microwave wave
It leads feedback inlet and connects microwave waveguide driver, coaxial line feed-in mouth connects coaxial line excited device；When work, microwave magnetron source is issued
Microwave pass through microwave waveguide driver radiation, be evenly distributed on vertically or horizontally；What solid state microwave sources issued
Microwave passes through the radiation of coaxial line excited device, is evenly distributed on horizontal or vertical direction.So far, it just will appear two in furnace chamber
The microwave that a direction is mutually merged, is dispersed in microwave more uniformly in furnace chamber.
The present invention has rational design, in conjunction with the characteristic of High power microwavs and low frequency microwave, allows them in the same cavity
It works at the same time, so that the mode field that low frequency microwave evokes just makes up the feeble field part of High power microwavs, to reach complementary
State keeps the intracorporal microwave field distribution of chamber uniform, achievees the purpose that be evenly heated food, and substantially increases heating food
Speed and heating quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of double source double frequency micro-wave oven.
The structural schematic diagram of Fig. 2 coupling aperture.
Fig. 3 is 800W, and 915MHz microwave excitation generates TE11 mode and 250W, 2450MHz microwave excitation generate TE22 mould
The distribution map of the electric field that formula works at the same time.
Fig. 4 is 800W, and 915MHz microwave excitation generates TE11 mode and 100W, 2450MHz microwave excitation generate TE22 mould
The distribution map of the electric field that formula works at the same time.
Wherein, 1, furnace chamber, 2, waveguide feed-in mouth, 3, microwave waveguide transmission line, 4, microwave magnetron source, 5, coaxial line feed-in
Mouthful, 6, microwave waveguide driver, 7, coaxial low pass filter, 8, solid state microwave sources, 9, coaxial line excited device, 10, fire door, 11,
Furnace chamber wall, 12, coaxial line transmission line, 13, coupling aperture.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in Figure 1, double source double frequency micro-wave oven includes furnace body, furnace chamber 1 is offered in furnace body, the side of furnace body is provided with furnace
Door 10 is provided with microwave magnetron source 4 and solid state microwave sources 8 in the furnace chamber wall 11 of furnace body, and microwave magnetron source 4 is mounted on
On the furnace chamber wall 11 of bottom, solid state microwave sources 8 are mounted on the furnace chamber wall 11 of side；Microwave magnetron source 4 passes through microwave waveguide
Transmission line 3 is connect with waveguide feed-in mouth 2, and waveguide feed-in mouth 2 is mounted on the furnace chamber wall 11 of cavity bottom surface, and waveguide feed-in mouth 2
Opening towards in cavity；Solid state microwave sources 8 are connect by coaxial line transmission line 12 with coaxial low pass filter 7, on-axis low pass
Filter 7 is connect by coaxial line transmission line 12 with coaxial line feed-in mouth 5, and coaxial line feed-in mouth 5 is mounted on the furnace of 1 side of furnace chamber
In cavity wall 11, and the opening of coaxial line feed-in mouth 5 is towards in furnace chamber 1.
This programme is preferably separately installed with microwave waveguide driver 6 and same on waveguide feed-in mouth 2 and coaxial line feed-in mouth 5
Axis driver 9；Microwave waveguide driver 6 is connect by microwave waveguide transmission line 3 with microwave magnetron source 4, coaxial line excited
Device 9 is connect by coaxial line transmission line 12 with coaxial low pass filter 7；Microwave waveguide driver 6 can also transmit for microwave waveguide
Several coupling apertures 13 opened up on line 3, microwave pass through in 13 feed-in furnace chamber 1 of coupling aperture.
This programme is tool there are two the micro-wave oven of microwave source, and one is microwave magnetron source 4, the other is solid state microwave sources
8；The working frequency of two kinds of microwave sources is not identical, and the working frequency in microwave magnetron source 4 is high, the working frequency of solid state microwave sources 8
It is low；The microwave of two kinds of frequencies motivates the field distribution of generation different in the furnace chamber 1 of micro-wave oven, imitates to the heating of different loads situation
Answer difference；When two microwave sources work at the same time, the mode field in furnace chamber 1 is no longer single heating method.Microwave magnetron
The mode field number that the High power microwavs in source 4 can motivate is limited, some region microwave field densities, and some region microwave fields are weak；This
When, the mode field that the low frequency microwave of solid state microwave sources 8 evokes can just make up the feeble field part of High power microwavs field, make furnace
Microwave mode in chamber 1 is more；The field distribution uniformity of microwave field in micro-wave oven can be made more preferable, and then make to be heated food
Object is heated more evenly, improves heating quality and heating speed.
As shown in Fig. 2, micro-wave oven, in 800W, 915MHz microwave excitation generates TE11 mode and 250W, 2450MHz microwave swash
It encourages and generates the distribution map of the electric field that TE22 mode works at the same time, as shown in figure 3, micro-wave oven, in 800W, 915MHz microwave excitation generates
TE11 mode and 100W, 2450MHz microwave excitation generate the distribution map of the electric field that TE22 mode works at the same time.
The working frequency of microwave magnetron source 4 and solid state microwave sources 8 is different, coaxial line feed-in mouth 5 and solid state microwave sources 8 it
Between due to having installed coaxial low pass filter 7 additional, can just inhibit microwave magnetron source 4 generate high-frequency microwave to Solid Source
It influences；And the microwave of microwave waveguide feed-in mouth 2 inhibits the production of solid state microwave sources 8 using the high-pass filtering characteristic of its microwave waveguide
Influence of the raw low frequency microwave to microwave magnetron source 4 avoids mutual dry between microwave magnetron source 4 and solid state microwave sources 8
It disturbs, two microwave sources is made to play maximum effect.
Microwave waveguide feed-in mouth 2 and coaxial line feed-in mouth 5 are separately positioned on two different inner walls of cavity, and microwave
Microwave waveguide driver 6 is connect at waveguide feed-in mouth 2, coaxial line feed-in mouth 5 connects coaxial line excited device 9；When work, microwave magnetron
The microwave that source 4 issues passes through the radiation of microwave waveguide driver 6, is evenly distributed on vertically or horizontally；Solid state microwave
The microwave that source 8 issues passes through the radiation of coaxial line excited device 9, is evenly distributed on horizontal or vertical direction.So far, furnace chamber 1
It inside just will appear the microwave that both direction mutually merges, be dispersed in microwave more uniformly in furnace chamber 1.
The present invention has rational design, in conjunction with the characteristic of High power microwavs and low frequency microwave, allows them in the same cavity
It works at the same time, so that the mode field that low frequency microwave evokes just makes up the feeble field part of High power microwavs, to reach complementary
State keeps the intracorporal microwave field distribution of chamber uniform, achievees the purpose that be evenly heated food, and substantially increases heating food
Speed and heating quality.
Claims (5)
1. a kind of double source double frequency micro-wave oven, which is characterized in that including offer the furnace body of furnace chamber (1), microwave magnetron source (4),
Solid state microwave sources (8) and the fire door (10) being arranged on furnace body, the microwave magnetron source (4) and solid state microwave sources (8) are all provided with
It sets in furnace chamber wall (11), waveguide feed-in mouth (2) and coaxial line feed-in mouth (5) is provided on the inner surface of the furnace chamber (1), and
The opening of waveguide feed-in mouth (2) and coaxial line feed-in mouth (5) is towards in cavity；The waveguide feed-in mouth (2) passes through microwave waveguide
Transmission line (3) is connect with microwave magnetron source (4)；The coaxial line feed-in mouth (5) by coaxial line transmission line (12) with it is coaxial
Low-pass filter (7) connection, the coaxial low pass filter (7) are connected by coaxial line transmission line (12) and solid state microwave sources (8)
It connects.
2. double source double frequency micro-wave oven according to claim 1, which is characterized in that the waveguide feed-in mouth (2) and coaxial line
Feed-in mouth is separately installed with microwave waveguide driver and coaxial line excited device on (5)；The microwave waveguide driver passes through microwave
Waveguide transmission line (3) is connect with microwave magnetron source (4), the coaxial line excited device by coaxial line transmission line (12) with it is coaxial
Low-pass filter (7) connection.
3. double source double frequency micro-wave oven according to claim 2, which is characterized in that the microwave waveguide driver (6) is micro-
Several coupling apertures (13) opened up on sonic wave guide transmission line (3), the microwave waveguide transmission line (3) and microwave magnetron source (4)
Connection.
4. double source double frequency micro-wave oven according to claim 1, which is characterized in that the waveguide feed-in mouth (2) and coaxial line
Feed-in mouth (5) is opened on two opposite furnace chamber walls (11).
5. double source double frequency micro-wave oven according to claim 1, which is characterized in that the waveguide feed-in mouth (2) and coaxial line
Feed-in mouth (5) is opened on two adjacent furnace chamber walls (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181240.6U CN208353645U (en) | 2018-07-24 | 2018-07-24 | A kind of double source double frequency micro-wave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181240.6U CN208353645U (en) | 2018-07-24 | 2018-07-24 | A kind of double source double frequency micro-wave oven |
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| Publication Number | Publication Date |
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| CN208353645U true CN208353645U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821181240.6U Withdrawn - After Issue CN208353645U (en) | 2018-07-24 | 2018-07-24 | A kind of double source double frequency micro-wave oven |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696958A (en) * | 2018-07-24 | 2018-10-23 | 电子科技大学 | A kind of double source double frequency micro-wave oven |
| CN112969252A (en) * | 2021-04-08 | 2021-06-15 | 电子科技大学长三角研究院(湖州) | Novel microwave heating oven system |
-
2018
- 2018-07-24 CN CN201821181240.6U patent/CN208353645U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696958A (en) * | 2018-07-24 | 2018-10-23 | 电子科技大学 | A kind of double source double frequency micro-wave oven |
| CN108696958B (en) * | 2018-07-24 | 2024-03-19 | 电子科技大学 | Dual-source dual-frequency microwave oven |
| CN112969252A (en) * | 2021-04-08 | 2021-06-15 | 电子科技大学长三角研究院(湖州) | Novel microwave heating oven system |
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Granted publication date: 20190108 Effective date of abandoning: 20240319 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240319 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |