CN205320322U - A antenna and microwave heating equipment for microwave heating equipment - Google Patents
A antenna and microwave heating equipment for microwave heating equipment Download PDFInfo
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- CN205320322U CN205320322U CN201521087746.7U CN201521087746U CN205320322U CN 205320322 U CN205320322 U CN 205320322U CN 201521087746 U CN201521087746 U CN 201521087746U CN 205320322 U CN205320322 U CN 205320322U
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- heating equipment
- mast
- microwave heating
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Abstract
The utility model relates to the field of household appliances, a an antenna and microwave heating equipment for microwave heating equipment is disclosed, the microwave emission that the antenna produced the microwave source extremely microwave heating equipment's heating chamber, this antenna includes: the ground plate, and the antenna mast, include: first antenna pole, with the ground plate is perpendicular, just the port of first antenna pole is microwave feed -in mouth, second antenna pole, with first antenna pole is connected perpendicularly. So do not having under the condition of waveguide, through microwave emission that the antenna produced the microwave source has reduced little wave propagation link to microwave heating equipment's heating chamber, has improved little wave propagation efficiency to heat time has been shortened.
Description
Technical field
This utility model relates to household appliance technical field, in particular it relates to a kind of antenna for microwave heating equipment and microwave heating equipment.
Background technology
Along with the improvement day by day of living standard, microwave heating equipment use in daily life is also increasing. In microwave heating equipment, it is common that produce microwave by microwave generator (that is, microwave source), it is then passed through antenna, waveguide by microwave transfer adding in hot cell to placement heating object. In this process, the more little then efficiency of loss is more high, and the raising of efficiency can reduce cooking time, saves the energy. But, owing to the link of present microwave transfer is more, add lossy microwave, thus reduce microwave transfer efficiency, and then cause that heat time heating time is longer.
Utility model content
The purpose of this utility model is to provide a kind of antenna for microwave heating equipment and microwave heating equipment, this be used for microwave heating equipment antenna can directly by Microwave emission to adding in hot cell, reduce lossy microwave, thus providing microwave transfer efficiency.
To achieve these goals, what this utility model provided the Microwave emission that produced by microwave source of a kind of antenna described in the antenna of microwave heating equipment extremely described microwave heating equipment adds hot cell, and this antenna includes: earth plate; And mast, including first antenna bar, vertical with described earth plate, and the port of described first antenna bar is microwave feed-in mouth; Second mast, vertical with described first antenna bar is connected.
Preferably, described antenna also includes: grounded antenna sheet, and described mast is connected with described earth plate by described grounded antenna sheet.
Preferably, described grounded antenna sheet and the connected mode of described mast and described earth plate be following in one: weld, screw is fixed and buckle.
Preferably, described microwave feed-in mouth is connected with the outfan of described microwave source in the way of being indirectly connected with or being directly connected to.
Preferably, the mode of described indirect link is: described microwave feed-in mouth is connected with the outfan of described microwave source by radio frequency connector;The mode of described direct link is: described microwave feed-in mouth is fixing with the outfan of described microwave source to be connected.
Preferably, when described microwave feed-in mouth is connected with the outfan of described microwave source by described radio frequency connector, outfan and the described microwave feed-in mouth of described microwave source are connected with the inner wire of described radio frequency connector, the outer conductor of described radio frequency connector and the shell of described microwave source or pedestal and described earth plate is fixing is connected, and the outer conductor of described radio frequency connector and described microwave source are altogether; When described microwave feed-in mouth is fixed with the outfan of described microwave source and to be connected, described earth plate is with described microwave source altogether.
Preferably, described earth plate, described mast and described grounded antenna sheet are conductor metal.
Preferably, described mast meets following at least one: the length range of described first antenna bar is 7mm to 15mm; The length range of described second mast is 26mm to 34mm; Described first antenna bar and described second mast are cylinder or cuboid; And the thickness range of described first antenna bar and described second mast is 1.5mm to 4.5mm.
Correspondingly, this utility model also provides for a kind of microwave heating equipment, and described microwave heating equipment includes: above-mentioned antenna; Microwave source, is connected with described antenna; And add hot cell, the Microwave emission that described microwave source is produced by described antenna to described in add hot cell.
Preferably, described antenna be fixed on described in add on the wall in hot cell.
Preferably, the earth plate of hot cell and described antenna is added described in altogether.
Preferably, the fixed form of hot cell and the earth plate of described antenna is added described in for welding or screw is fixed.
Preferably, described microwave heating equipment also includes the block piece for protecting antenna.
Preferably, the material of described block piece be following in one: mica sheet, plastics and glass.
Preferably, described microwave source is produced by semiconductor microactuator wave generation device.
Pass through technique scheme, first antenna bar for the antenna of microwave heating equipment is vertical with described earth plate, and the port of described first antenna bar is microwave feed-in mouth, second mast and described first antenna bar, so when not having waveguide, the Microwave emission produced by microwave source by described antenna adds hot cell to microwave heating equipment, decreases microwave transfer link, improve microwave transfer efficiency, thus shortening heat time heating time.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below. In the accompanying drawings:
Fig. 1 is the structural representation of the antenna for microwave heating equipment provided according to a kind of embodiment of this utility model;
Fig. 2 is the schematic diagram adopting indirect connections to be connected between the antenna according to a kind of embodiment of this utility model and microwave source;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 adopts between the antenna according to a kind of embodiment of this utility model and microwave source to be directly connected to the schematic diagram that mode is connected;
Fig. 5 is the structural representation of the microwave heating equipment provided according to a kind of embodiment of this utility model;
Fig. 6 is the structural representation of the microwave heating equipment provided according to this utility model another embodiment;
Fig. 7 is the standing wave curve chart under 2.4GHz 2.5GHz frequency range of the antenna according to a kind of embodiment offer of this utility model; And
Fig. 8 is the standing wave curve chart during antenna rotation 30 degree according to this utility model offer.
Description of reference numerals
10 earth plate 21 first antenna bars
22 second mast 23 microwave feed-in mouths
30 grounded antenna sheet 40 microwave sources
50 radio frequency connectors 60 add hot cell
70 block pieces
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail. It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
Fig. 1 is the structural representation of the antenna for microwave heating equipment provided according to a kind of embodiment of this utility model. As it is shown in figure 1, the antenna for microwave heating equipment that this utility model provides may include that earth plate 10; And mast, it is possible to including: first antenna bar 21, vertical with described earth plate, and the port of described first antenna bar 21 is microwave feed-in mouth 23; Second mast 22, vertical with described first antenna bar 21 is connected. The Microwave emission produced by microwave source by described antenna adds hot cell to microwave heating equipment, decreases microwave transfer link, improves microwave transfer efficiency, thus shortening heat time heating time.
Described antenna can also include grounded antenna sheet 30, and described mast is connected with described earth plate 10 by described grounded antenna sheet 30. Wherein, earth plate 10, mast, grounded antenna sheet 30 are all conductor metal (such as, good conductor metal), mast does not directly contact with earth plate 10, but by grounded antenna sheet 30, (one end connects mast, one end connects earth plate) realize the conducting on three's circuit, to guarantee good conducting. Grounded antenna sheet 30 and the connected mode of described mast and described earth plate 10 can be following in one: weld, screw is fixed and buckle etc. Earth plate 10 is unrestricted with the geomery of grounded antenna sheet 30, it is possible to determine according to practical situation.
The microwave feed-in mouth 23 of the antenna that this utility model provides can be connected with the outfan of described microwave source in the way of being indirectly connected with or being directly connected to.
Fig. 2 is the schematic diagram adopting indirect connections to be connected between the antenna according to a kind of embodiment of this utility model and microwave source, and Fig. 3 is the partial enlarged drawing of Fig. 2. As shown in Figures 2 and 3, described microwave feed-in mouth 23 can be connected with the outfan of described microwave source 40 by radio frequency connector 50. Wherein, the outfan of described microwave source 40 can be connected with the inner wire of described radio frequency connector 50, the outer conductor of described radio frequency connector 50 such as can pass through the devices such as flange to be fixed be connected with shell or the pedestal of described microwave source 40, and the outer conductor of described radio frequency connector 50 is with described microwave source 40 altogether; Described microwave feed-in mouth 23 is connected with the inner wire of described radio frequency connector 50, and described earth plate 10 is such as connected by the devices such as flange and outer conductor are fixing. It should be noted that the radio frequency connector 50 being connected with microwave source 40 and the radio frequency connector 50 being connected with antenna must match, namely when being female for one, another is male, and vice versa. So it is indirectly connected with being advantageous in that motility is better, after antenna is fixing with radio frequency connector 50, convenient disassembly in debugging, and when microwave source 40 closely can not be directly connected to antenna, the two can also increase radio-frequency cable and connect, so that structural design is more flexible, but this indirect mode adds cost and loss.
Fig. 4 adopts between the antenna according to a kind of embodiment of this utility model and microwave source to be directly connected to the schematic diagram that mode is connected.As shown in Figure 4, the outfan of microwave source 40 is connected with the microwave feed-in mouth 23 of antenna, and earth plate 10 is with microwave source 40 altogether (such as, fanatic to be connected with its shell or pedestal). The advantage of this connected mode is in that simple in construction, and loss is little, and cost is low; But motility is relatively low.
Wherein, described mast meets following at least one: the length of described first antenna bar (mast to the vertical dimension of earth plate 10) ranges for 7mm to 15mm; The length range of described second mast is 26mm to 34mm; Described first antenna bar and described second mast are cylinder or cuboid; And the thickness range of described first antenna bar and described second mast is 1.5mm to 4.5mm.
Correspondingly, this utility model also provides for a kind of microwave heating equipment, for instance microwave oven. As it is shown in figure 5, described microwave heating equipment includes: above-mentioned antenna; Microwave source 40, is connected with described antenna; And add hot cell 60, the Microwave emission that described microwave source 40 is produced by described antenna to described in add hot cell 60. So when not having waveguide, the Microwave emission produced by microwave source by described antenna adds hot cell to microwave heating equipment, decreases microwave transfer link, improves microwave transfer efficiency, thus shortening heat time heating time.
It addition, as it is shown in figure 5, described antenna be fixed on described in add on the wall in hot cell 60; The described earth plate 10 adding hot cell 60 and described antenna is altogether.
The wall adding hot cell 60 is generally made up of metal material, although can increase other materials sometimes according to design, but for microwave property, microwave need to be constrained in by metal to be added in hot cell 60. It is taken as that constraint microwave metal be the ground adding hot cell, then earth plate 10 must with its compact siro spinning technology, and centre can not increase insulation or poor conductor material, to realize the conducting on circuit.
As it is shown in figure 5, earth plate 10 may be located at the inner side adding hot cell 60, as shown in Figure 6, earth plate 10 can also be positioned at the outside adding hot cell 60. Add hot cell 60 and the earth plate 10 of antenna fixed form can for welding, screw fixing etc., however it is necessary that guarantee, after fixing, the outer wall and the antenna that add hot cell 60 will not deform upon.
Additionally; owing to not adopting the mode of waveguide that antenna can be made to be inserted directly into adding in hot cell 60; thus as shown in Fig. 5 heat exchange 6; need to increase block piece 70 to protect antenna; block piece 70 require use can penetrate the material not absorbing microwave, its can be following in one: mica sheet, plastics and glass.
In a kind of embodiment of the present utility model, antenna is set to: the length of described first antenna bar (mast to the vertical dimension of earth plate 10) ranges for 7mm to 15mm; The length range of described second mast is 26mm to 34mm; Described first antenna bar and described second mast are cylinder or cuboid; And the thickness range of described first antenna bar and described second mast is 1.5mm to 4.5mm. Working frequency range at antenna is 2.4GHz 2.5GHz, and the standing wave under this frequency range is as shown in Figure 7. Weighing efficiency of transmission with standing wave, standing wave is 1 to 1.04, and efficiency of transmission is 100%, is theoretical value, is extremely difficult to. Standing wave is 1.3, represents that microwave transmission efficiency now is 98.3%, and standing wave is efficiency of transmission when 1.6 is 94.7%, and when standing wave is 2, efficiency of transmission is 88.9%.
In debugging process, it is possible to the angle regulating mast regulates impedance, change standing wave, Fig. 8 be mast to left-handed 30 degree time standing wave curve.
When 2.45GHz, when heating indoor and putting into 1000ml water, by relation such as table 1 of mast rotational angle (vertical bottom face is 0 degree downwards, turns clockwise) Yu standing wave:
Table 1
| 0 | 30 | 60 | 90 | 120 | 150 | 180 | 210 | 240 | 270 | 300 | 330 | 360 |
| 1.4 | 1.6 | 2.4 | 1.8 | 1.6 | 1.5 | 1.3 | 1.5 | 2.1 | 1.6 | 1.7 | 1.9 | 2.0 |
By above-mentioned test, it can be deduced that, the antenna that this utility model provides, when not having waveguide by Microwave emission to adding hot cell, its efficiency of transmission is higher such that it is able to calculate the heat time heating time of many microwave heating equipments.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (15)
1. the antenna for microwave heating equipment, it is characterised in that the Microwave emission that microwave source is produced by described antenna adds hot cell to described microwave heating equipment, and this antenna includes:
Earth plate; And
Mast, including:
First antenna bar, vertical with described earth plate, and the port of described first antenna bar is microwave feed-in mouth;
Second mast, vertical with described first antenna bar is connected.
2. antenna according to claim 1, it is characterised in that described antenna also includes: grounded antenna sheet, described mast is connected with described earth plate by described grounded antenna sheet.
3. antenna according to claim 2, it is characterised in that described grounded antenna sheet and the connected mode of described mast and described earth plate be following in one: weld, screw is fixed and buckle.
4. antenna according to claim 1, it is characterised in that described microwave feed-in mouth is connected with the outfan of described microwave source in the way of being indirectly connected with or being directly connected to.
5. antenna according to claim 4, it is characterised in that
The mode of described indirect link is: described microwave feed-in mouth is connected with the outfan of described microwave source by radio frequency connector;
The mode of described direct link is: described microwave feed-in mouth is fixing with the outfan of described microwave source to be connected.
6. antenna according to claim 5, it is characterised in that
When described microwave feed-in mouth is connected with the outfan of described microwave source by described radio frequency connector, outfan and the described microwave feed-in mouth of described microwave source are connected with the inner wire of described radio frequency connector, the outer conductor of described radio frequency connector and the shell of described microwave source or pedestal and described earth plate is fixing is connected, and the outer conductor of described radio frequency connector and described microwave source are altogether;
When described microwave feed-in mouth is fixed with the outfan of described microwave source and to be connected, described earth plate is with described microwave source altogether.
7. antenna according to claim 2, it is characterised in that described earth plate, described mast and described grounded antenna sheet are conductor metal.
8. the antenna according to any one of claim 1-7, it is characterised in that described mast meets following at least one:
The length range of described first antenna bar is 7mm to 15mm;
The length range of described second mast is 26mm to 34mm;
Described first antenna bar and described second mast are cylinder or cuboid; And
The thickness range of described first antenna bar and described second mast is 1.5mm to 4.5mm.
9. a microwave heating equipment, it is characterised in that described microwave heating equipment includes:
Antenna according to any one of claim 1-8;
Microwave source, is connected with described antenna; And
Add hot cell, the Microwave emission that described microwave source is produced by described antenna to described in add hot cell.
10. microwave heating equipment according to claim 9, it is characterised in that described antenna be fixed on described in add on the wall in hot cell.
11. microwave heating equipment according to claim 9, it is characterised in that described in add the earth plate of hot cell and described antenna altogether.
12. microwave heating equipment according to claim 11, it is characterised in that described in add the fixed form of hot cell and the earth plate of described antenna for welding or screw is fixed.
13. microwave heating equipment according to claim 9, it is characterised in that described microwave heating equipment also includes the block piece for protecting antenna.
14. microwave heating equipment according to claim 13, it is characterised in that the material of described block piece be following in one: mica sheet, plastics and glass.
15. the microwave heating equipment according to any one of claim 9-14, it is characterised in that described microwave source is produced by semiconductor microactuator wave generation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087746.7U CN205320322U (en) | 2015-12-22 | 2015-12-22 | A antenna and microwave heating equipment for microwave heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087746.7U CN205320322U (en) | 2015-12-22 | 2015-12-22 | A antenna and microwave heating equipment for microwave heating equipment |
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| Publication Number | Publication Date |
|---|---|
| CN205320322U true CN205320322U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087746.7U Active CN205320322U (en) | 2015-12-22 | 2015-12-22 | A antenna and microwave heating equipment for microwave heating equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554932A (en) * | 2015-12-22 | 2016-05-04 | 广东美的厨房电器制造有限公司 | Antenna for microwave heating device and microwave heating device |
| CN106304456A (en) * | 2016-08-29 | 2017-01-04 | 广东美的厨房电器制造有限公司 | Microwave feedthrough and microwave cooking equipment |
-
2015
- 2015-12-22 CN CN201521087746.7U patent/CN205320322U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554932A (en) * | 2015-12-22 | 2016-05-04 | 广东美的厨房电器制造有限公司 | Antenna for microwave heating device and microwave heating device |
| CN106304456A (en) * | 2016-08-29 | 2017-01-04 | 广东美的厨房电器制造有限公司 | Microwave feedthrough and microwave cooking equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |