CN101645384A - Radiating structure of shell having stream guidance opening of microwave oven magnetron - Google Patents
Radiating structure of shell having stream guidance opening of microwave oven magnetron Download PDFInfo
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- CN101645384A CN101645384A CN200810054096A CN200810054096A CN101645384A CN 101645384 A CN101645384 A CN 101645384A CN 200810054096 A CN200810054096 A CN 200810054096A CN 200810054096 A CN200810054096 A CN 200810054096A CN 101645384 A CN101645384 A CN 101645384A
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- magnetron
- stream guidance
- microwave oven
- housing
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Abstract
The invention relates to a radiating structure of a shell having stream guidance openings of a microwave oven magnetron, which is characterized in that the lateral surface of the shell is provided with a plurality of stream guidance openings, and the lateral surface of the shell provided with the stream guidance openings comprises the lateral surfaces of an upper shell and a lower shell of the magnetron. A cutting piece for cutting the stream guidance openings extends outwards obliquely from the lateral surface of the shell; the stream guidance openings formed by the oblique outward extensionof the cutting piece face the direction of a fan; and the oblique outward extension of the cutting piece on the lateral surface of the shell along the blowing direction of the fan is gradually raised.Simultaneously, the lateral surface and the back surface of the shell on the lower part of the magnetron are provided with through holes, and the lateral surface of the shell on the lower part is over against the blowing direction of the fan. When the magnetron works, the air forced to flow by the fan can enter the shell of the magnetron from different directions and parts at the same time so asto enlarge an air flow passage, increase the radiating air quantity, and improve the radiating and cooling efficiency of the magnetron.
Description
Technical field
The present invention relates to the magnetron of microwave oven, particularly relate to microwave oven magnetic heat radiation cooling structure.
Background technology
Microwave oven is the household electrical appliance cooker that utilizes high-frequency microwave that food is heated, and the frictional heat that produces by food molecule high vibration under the radiation effects of high-frequency microwave heats and cooking food.During the cooking in microwave oven operation, microwave penetration food, can inside and outside heating simultaneously, it is fast and use plurality of advantages easily to have an efficient height, speed.Therefore, microwave oven progressively becomes widely used domestic electric appliance.The outward appearance of microwave oven is rectangular shape, and there is fire door in the housing front of cuboid, fire door one side setting operation key.Form furnace chamber in the housing, the top and side of furnace chamber is provided with the internal structure of microwave oven, mainly contains magnetron, waveguide, control circuit device etc.
Magnetron is the heart of microwave oven, is a kind of vacuum device, is used to produce the continuous microwave of heat food.The magnetron main composition partly is tube core and magnet, and tube core comprises negative electrode, anode and antenna.After being positioned at negative electrode that magnetron central authorities have filament and being heated, promptly anode is launched a large amount of electronics.Anode surrounds negative electrode, is positioned at the peripheral of magnetron and is exposed cathodic last ring round resonant cavity of anode.The electronics of cathode emission is subjected to the effect of the high-intensity magnetic field of magnet formation again in the anode motion process, electronics is done the wheel cycloid motion under the acting in conjunction of electric field force and magnetic field force, and vibrates and the generation microwave in the negative electrode resonant cavity.Microwave is exported through antenna, enters furnace chamber through waveguide again.
The power supply connecting device of magnetron includes high-tension transformer, high-voltage capacitor, high voltage silicon stack etc., and anode of magnetron voltage is the pulsating direct current crest voltage of 3～4kV, and magnetron is in work and the high heat of generation under the high pressure conditions.And the conversion efficiency of magnetron is about 70%, i.e. 70% of magnetron power consumption is converted to the microwave radiation energy, and all the other power consumptions of 30% are converted to heat and spread in magnetron.Yet magnetron sustains damage in excessive temperature environmental condition work meeting, therefore; overheat protector is installed on the magnetron; so that when the temperature rise of magnetron surpasses the limit of regulation, the overheat protector action is also cut off operating circuit, prevents that magnetron from damaging because of overheated.
And the more important thing is that magnetron must be provided with cooling device, and in work, cool off, to ensure its operate as normal, adopt fan to carry out air blast cooling usually, be the magnetron cooling.
Fig. 1 is the structural representation of the microwave oven magnetic of prior art.As shown in the figure, the housing of magnetron is two square bodies up and down, in the upper body 1 tube core is set, and comprises negative electrode, anode 4 and antenna 7, tube core is set in the lower case 2 also is connected with external power source by attaching plug 3 with the jockey of external power source.The arranged outside fin 6 of anode 4, fin 6 is tabular aluminium flake, along the axial alternate configuration of anode 4.Expose to the outside by the side of upper body 1 uncovered 5 around the fin 6 of anode 4.The side of upper body 1 uncovered 5 is used to the circulation of air of dispelling the heat, from the side to the magnetron blowing, air passes fin 6 backs from relative uncovered the blowing out in another side from uncovered blowing in side by fan, moving air is strengthened heat loss through convection, makes magnetron heat radiation cooling.
But for the microwave oven magnetic of above-mentioned prior art, the air of fan forced flow only blows into and blows out from two opposite flanks of magnetron upper body 1 are uncovered, and the heat radiation deficiency in draught makes magnetron heat radiation cooling effectiveness low.
Summary of the invention
Have the problem of heat radiation deficiency in draught at the microwave oven magnetic of above-mentioned prior art, the present invention releases new magnetron radiator structure, and its purpose is, open the incisal guide head piece in magnetron housing side, the expansion air flow passage increases the heat radiation air quantity, improves the heat radiation cooling effectiveness.
The radiator structure of shell having stream guidance opening of microwave oven magnetron involved in the present invention is characterized in that, opens in the housing side and cuts several flow-guiding mouths, and the described case side face of opening the incisal guide head piece comprises the side of magnetron upper body and lower case.The section of opening the incisal guide head piece is oblique overhanging from the housing side, and the flow-guiding mouth of the oblique overhanging formation of cutting into slices is towards fan directional, along oblique overhanging progressive the increasing of fan blowing direction housing side section.Simultaneously, have through hole at the side and the back side of magnetron lower case, the side of described lower case is to face the fan blowing direction.
When magnetron was worked, the air of fan forced flow can enter the magnetron housing from different directions and position simultaneously, enlarged air flow passage, increased the heat radiation air quantity, improved magnetron heat radiation cooling effectiveness.
Description of drawings
Fig. 1 is the structural representation of the microwave oven magnetic of prior art.
Fig. 2 is the structural representation of the microwave oven magnetic that the present invention relates to.
Fig. 3 is the microwave oven magnetic housing vertical view that the present invention relates to.
Main mark explanation among the figure:
1, upper body 2, lower case
3, attaching plug 4, anode
5, uncovered 6, the fin in upper body side
7, antenna 8, flow-guiding mouth
9, flow-guiding mouth section 10, through hole
Embodiment
Now in conjunction with the accompanying drawings to being described further for the present invention.Fig. 2 is the structural representation of the microwave oven magnetic that the present invention relates to.Fig. 3 is the microwave oven magnetic housing vertical view that the present invention relates to.
As shown in Figures 2 and 3, the housing of microwave oven magnetic involved in the present invention is two parts up and down, in the upper body 1 tube core is set, comprises negative electrode and anode 4, tube core is set in the lower case 2 also is connected with external power source by attaching plug 3 with the jockey of external power source.The arranged outside fin 6 of anode 4, fin 6 is tabular aluminium flake, along the axial alternate configuration of anode 4.Expose to the outside by the side of upper body 1 uncovered 5 around the fin 6 of anode 4.Upper body 1 and lower case 2 respectively have to open on two housing sides cuts several flow-guiding mouths 8, the housing side of opening incisal guide head piece 8 of upper body 1 with have a lateral vertical of side uncovered 5.The section 9 of opening incisal guide head piece 8 is oblique overhanging from the housing side, and the flow-guiding mouth 8 of the 9 oblique overhanging formation of cutting into slices is towards fan directional, and the oblique sponson of housing side section 9 increases along the fan blowing direction is progressive.In addition two sides of lower case have through hole 10, and described lower case has the side of through hole 10 facing to the fan blowing direction, and with the housing lateral vertical of opening incisal guide head piece 8.
When the unlatching fan is magnetron heat radiation cooling, the air of fan forced flow can enter the magnetron housing from different directions and position simultaneously: uncovered 5 blow into from the side of upper body 1, open flow-guiding mouth 8 oblique the blowing into of cutting from upper body 1 and lower case 2 sides, open to such an extent that through hole 10 blows into from lower case 2 sides.Enlarge air flow passage, increase the heat radiation air quantity.
Claims (3)
1, a kind of radiator structure of shell having stream guidance opening of microwave oven magnetron, housing is two parts up and down, anode (4) arranged outside fin (6) in the upper body (1), fin (6) is tabular aluminium flake, axial alternate configuration along anode (4), fin (6) around anode (4) exposes to the outside by the side of two sides of upper body uncovered (5), it is characterized in that, upper body (1) and lower case (2) respectively have to open on two housing sides cuts several flow-guiding mouths (8), the housing side of opening incisal guide head piece (8) of upper body (1) with have a lateral vertical of side uncovered (5), the section (9) of opening incisal guide head piece (8) is oblique overhanging from the housing side, and the flow-guiding mouth (8) of section (9) oblique overhanging formation is towards fan directional.
2, the radiator structure of shell having stream guidance opening of microwave oven magnetron according to claim 1 is characterized in that, the oblique sponson of housing side section (9) increases along the fan blowing direction is progressive.
3, the radiator structure of shell having stream guidance opening of microwave oven magnetron according to claim 1, it is characterized in that, two sides in addition of lower case have through hole (10), the side that described lower case has a through hole (10) is facing to the fan blowing direction, and with the housing lateral vertical of opening incisal guide head piece (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054096A CN101645384A (en) | 2008-08-08 | 2008-08-08 | Radiating structure of shell having stream guidance opening of microwave oven magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054096A CN101645384A (en) | 2008-08-08 | 2008-08-08 | Radiating structure of shell having stream guidance opening of microwave oven magnetron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101645384A true CN101645384A (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810054096A Pending CN101645384A (en) | 2008-08-08 | 2008-08-08 | Radiating structure of shell having stream guidance opening of microwave oven magnetron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101645384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369642A (en) * | 2016-09-26 | 2017-02-01 | 郑州峰泰纳米材料有限公司 | Microwave oven |
| CN106402954A (en) * | 2016-09-26 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Microwave oven |
-
2008
- 2008-08-08 CN CN200810054096A patent/CN101645384A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369642A (en) * | 2016-09-26 | 2017-02-01 | 郑州峰泰纳米材料有限公司 | Microwave oven |
| CN106402954A (en) * | 2016-09-26 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Microwave oven |
| CN106402954B (en) * | 2016-09-26 | 2018-12-28 | 郑州峰泰纳米材料有限公司 | Micro-wave oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100210 |