CN102235694A - Microwave oven - Google Patents
Microwave oven Download PDFInfo
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- CN102235694A CN102235694A CN2010101566992A CN201010156699A CN102235694A CN 102235694 A CN102235694 A CN 102235694A CN 2010101566992 A CN2010101566992 A CN 2010101566992A CN 201010156699 A CN201010156699 A CN 201010156699A CN 102235694 A CN102235694 A CN 102235694A
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- furnace chamber
- fire door
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- wave oven
- chamber frame
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Abstract
The invention relates to a microwave oven. The microwave oven comprises: a housing which forms the appearance of the microwave oven, and accommodates and protects various parts in the microwave oven; an oven chamber which is arranged in the housing and is a cavity for containing and heating foods; an oven door which is flexibly connected with the housing, can be opened and closed, and encloses the oven chamber through cooperated with an oven chamber frame; a magnetron which is arranged on a part out of the oven chamber and generates microwaves for heating the foods; a transformer for introducing high voltage into the magnetron; and a waveguide tube which is connected with the magnetron, is used for guiding the microwaves generated by the magnetron into the oven chamber by traversing through a side wall of the oven chamber. Contact surfaces of the oven door and the oven chamber frame are non-planar in structure, and shapes of the corresponding contact surfaces of the oven door and the oven chamber frame mutually cooperate. The length of a gap between the oven door and the oven chamber frame, the length of a crack, is controlled in 1/4 times of the wavelength of the microwave oven basic wave, so the leakage of the microwaves in the oven chamber between the oven door and the oven chamber frame is reduced.
Description
Technical field
The invention belongs to the technical field of micro-wave oven, the contact-making surface that is specifically related to a kind of fire door and furnace chamber frame is a nonplanar structure, and contact-making surface fits tightly mutually, makes the gap length at fire door and furnace chamber edge littler, reduces the micro-wave oven of microwave leakage in the furnace chamber.
Technical background
Micro-wave oven is that magnetron produces microwave behind power connection, and these microwave irradiations on heating objects such as food and the device of cooking food.Such micro-wave oven can be divided into home-use micro-wave oven that is equipped with small-sized magnetron and the commerce micro-wave oven that is equipped with large-scale or a plurality of magnetrons.Micro-wave oven can also be divided into home-use micro-wave oven according to the mode of heat food and generally adopt rotation to fill the glass rotating disk mode of food, and commerce mainly adopts the figure of confusion mode of scattered radiation microwave with micro-wave oven.Commercial mainly be applicable to the convenience store that utilization rate is high and the food supply retail shop of cooking food at short notice, so generally need the high relatively output of more home-use micro-wave oven with micro-wave oven.
Fig. 1 is the microwave oven structure schematic diagram; Fig. 2 is the structural representation of furnace chamber of the micro-wave oven of prior art; Fig. 3 is the schematic diagram in cross section when fire door and furnace chamber frame contact in the micro-wave oven of prior art.
As shown in Figure 1 and Figure 2, micro-wave oven comprises by the shell that forms outward appearance, furnace chamber 20 and is positioned at the electricity storage chamber 30 of furnace chamber 20 right side sides, also comprises the fire door 40 that is located at furnace chamber 20 fronts.Right-hand member at the lateral surface of fire door 40 is provided with handle, and the two ends of handle are screwed with fire door 40 and are connected.Shell forms the micro-wave oven outward appearance, also plays the effect of the inner furnace chamber 20 of protection simultaneously, so shell generally will be made of the steel plate with certain intensity.Shell comprises the rear board 17 at the base plate 13 below the top panel 11 of the top and two sides that cover furnace chamber 20 simultaneously, protection, the front panel 15 that forms furnace chamber 20 fronts and protection furnace chamber 20 back sides.Furnace chamber 20 is spaces of cooking such as cooking food thing, constitutes the food after both can having put into food and take out the cooking from opening the place ahead of furnace chamber 20 by the tetragonal chest of front openings.Be provided with electrical heating portion 21 on the top of furnace chamber outside.There is certain space the right side side of furnace chamber 20, and this space is to be the electricity storage chamber 30 that electronic unit is set, and electricity storage chamber 30 inside are provided with a plurality of electronic units such as transformer 31, magnetron 33, capacitor 37.Be provided with control panel assembly 26 in the front of electricity storage chamber 30.
In addition, the inside of electricity storage chamber 30 is provided with demarcation strip 39 between transformer 31 and radiator fan 35.Transformer 31, radiator fan 35, capacitor 37 and demarcation strip 39 be fixed on sub-panel above.Between sub-panel and base plate 13 top at intervals.
In a plurality of electronic units, transformer 31 and magnetron 33 produce the microwave of irradiation furnace chamber 20 inside, and waveguide is connected with magnetron, and the microwave that magnetron is produced passes the oven cavity side wall guided in furnace chamber.Electronic unit generates heat in the process that produces microwave, so in the time of cooking food, the temperature of electricity storage chamber 30 rises.Need to suck extraneous air for the electricity storage chamber 30 of cooling off heating, so radiator fan 35 sucks extraneous air.
The bottom of furnace chamber is provided with the pallet motor, pallet 36 rotatable being arranged on the pallet motor.Tray design becomes disc-shape to prop up gratin.Simultaneously, owing to pallet is made with safety glass, so have the not structure of the interior microwave of reflecting chamber.
When micro-wave oven brought into operation, pallet rotated under the driving of pallet motor, and gratin also begins to rotatablely move immediately, meanwhile, the microwave that is taken place by magnetron and transformer incides furnace chamber inside by waveguide, and the microwave of incident repeatedly reflects through furnace chamber, and food is heated.
But, there is following problem in the prior art:
As shown in Figure 3, in the micro-wave oven of the prior art, the contact-making surface of door of microwave oven and furnace chamber frame is the plane, directly contact by two planes, the production technology of present stage and making precision can't make all contact-making surfaces of fire door and furnace chamber frame all fit fully, in fact between fire door and furnace chamber frame, all leave the space and form crack between a door and its frame, although the crack between a door and its frame width can be much smaller than 1/4 wavelength of magnetron launched microwave, but because the length of crack between a door and its frame but can reach several centimetres, 1/4 wavelength of the basic wave greater than 1/4 is so be easy to cause microwave to reveal.
Summary of the invention
The present invention is a nonplanar structure for the technical problem that exists in the solution prior art provides the contact-making surface of a kind of fire door and furnace chamber frame, and contact-making surface fits tightly mutually, makes the gap length at fire door and furnace chamber edge littler, reduces the micro-wave oven of microwave leakage in the furnace chamber.
The technical scheme that the present invention takes for the technical problem that exists in the solution prior art is:
Micro-wave oven of the present invention comprises: shell, form the outward appearance of micro-wave oven, and hold and protect the interior various parts of micro-wave oven; Furnace chamber is arranged on the inside of shell, is used to hold and the cavity of heat food; Fire door flexibly connects with shell, can open and close, and by fire door and cooperating of furnace chamber frame sealing furnace chamber; Magnetron is arranged on the furnace chamber outside, produces the microwave that heat food is used; Transformer is for magnetron imports high voltage; Waveguide is connected with magnetron, and the microwave that magnetron is produced passes the oven cavity side wall guided in furnace chamber, and the contact-making surface of fire door and furnace chamber frame is a nonplanar structure, and fire door cooperatively interacts with the shape of the corresponding contact-making surface of furnace chamber frame.
The present invention can also adopt following technical measures:
Described fire door is mutual corresponding a plurality of folding face structures with the contact-making surface of furnace chamber frame, and the folding face structure when fire door is closed on fire door and the furnace chamber frame cooperatively interacts, and corresponding contact-making surface is fitted tightly.
The folding face width degree of above-mentioned folding face structure is not more than 1/4 wavelength of micro-wave oven basic wave.
Form corresponding a plurality of protrusion arc surfaces and a plurality of depression arc surface mutually on the contact-making surface of described fire door and furnace chamber frame, the arc surface of each protrusion matches with the depression arc surface when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
The cambered surface width of above-mentioned arc surface structure is not more than 1/4 wavelength of micro-wave oven basic wave.
Form a plurality of mutual corresponding strip protuberance and groove structures on the contact-making surface of described fire door and furnace chamber frame, the strip protuberance matches with groove when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
The depth of groove of above-mentioned protuberance and groove structure and width all are not more than 1/4 wavelength of micro-wave oven basic wave.
Two parts contact-making surface of above-mentioned fire door and furnace chamber frame all is respectively one-shot forming and is stamped to form.
Advantage and good effect that the present invention has are:
In the micro-wave oven of the present invention, the contact-making surface of fire door and furnace chamber frame is a nonplanar structure, and fire door cooperatively interacts with the shape of the corresponding contact-making surface of furnace chamber frame, at different situations can fire door and the contact-making surface of furnace chamber frame be set to multiple structure, on the one hand fire door and furnace chamber frame are fitted mutually, contact-making surface with fire door and furnace chamber frame further is divided into littler zones of different on the other hand, independently carries out contacting of fire door and furnace chamber frame between each zone of telling.Even if can't reach 100% accurately under the situation in the machining accuracy of fire door and furnace chamber frame, too can be easily be that the length of crack between a door and its frame is controlled within 1/4 wavelength of micro-wave oven basic wave with the length in the space between fire door and the furnace chamber frame, thereby reduced micro-wave oven when work the microwave in the furnace chamber from the air gap leakage between fire door and the furnace chamber frame to the external world, reduced micro-wave oven to the microwave amount of radiation of environment for use on every side.On the other hand, adopt the fire door and the furnace chamber frame of close-fitting on-plane surface contact-making surface structure to have the better sealing property and the degree of coupling, the heat that is furnace chamber inside is not easy to leak from fire door and furnace chamber frame, reduces energy dissipation, improves the operating efficiency of micro-wave oven.In addition,, process simply relatively, controlled production cost effectively because the contact-making surface of fire door and furnace chamber frame all adopts the mode one-shot forming of punching press to form respectively.
Description of drawings
Fig. 1 is the microwave oven structure schematic diagram of prior art;
Fig. 2 is the structural representation of furnace chamber of the micro-wave oven of prior art;
Fig. 3 is the schematic diagram in cross section when fire door and furnace chamber frame contact in the micro-wave oven of prior art;
Fig. 4 is the schematic diagram in cross section when fire door and furnace chamber frame contact among first embodiment of micro-wave oven of the present invention;
Fig. 5 is the schematic diagram in cross section when fire door and furnace chamber frame contact among second embodiment of micro-wave oven of the present invention;
Fig. 6 is the schematic diagram in cross section when fire door and furnace chamber frame contact among the 3rd embodiment of micro-wave oven of the present invention.
The specific embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
Fig. 4 is the schematic diagram in cross section when fire door and furnace chamber frame contact among first embodiment of micro-wave oven of the present invention; Fig. 5 is the schematic diagram in cross section when fire door and furnace chamber frame contact among second embodiment of micro-wave oven of the present invention; Fig. 6 is the schematic diagram in cross section when fire door and furnace chamber frame contact among the 3rd embodiment of micro-wave oven of the present invention.
In the micro-wave oven of the present invention, shell forms the outward appearance of micro-wave oven, holds and protect the interior various parts of micro-wave oven; Furnace chamber 20 is arranged on the inside of shell, is to be used to hold the also cavity of heat food; Magnetron 33 is arranged on the furnace chamber outside, produces the microwave that heat food is used; Transformer is that magnetron imports high voltage; Waveguide 34 is connected with magnetron, and the microwave that magnetron is produced passes the oven cavity side wall guided in furnace chamber.The contact-making surface of fire door and furnace chamber frame is a nonplanar structure, and fire door cooperatively interacts with the shape of the corresponding contact-making surface of furnace chamber frame, contact-making surface is divided into a plurality of different contact areas, each zone is separate when fire door and furnace chamber frame cooperatively interact, do not disturb mutually, thereby the length that the fire door that produces owing to machining accuracy is lower in the prior art and the space between the furnace chamber frame are crack between a door and its frame is cut apart, it is divided into the space of multistage, and the length of every section crack between a door and its frame all is controlled within the scope of 1/4 basic wave wavelength, thus hinder microwave from furnace chamber to external leaks.
As shown in Figure 4, fire door is mutual corresponding a plurality of folding face structures with the contact-making surface of furnace chamber frame, show that from the cross section of fire door and furnace chamber frame both contact-making surfaces all adopt zigzag fashion, the interlaced combination of tooth on fire door and the furnace chamber frame, folding face structure when fire door is closed on fire door and the furnace chamber frame cooperatively interacts, and corresponding contact-making surface is fitted tightly.
The folding face width degree of above-mentioned folding face structure is 1/4 wavelength that each sawtooth shown lateral width on sectional view is not more than the micro-wave oven basic wave, and the microwave in the micro-wave oven furnace chamber can not leak in the environment for use the space between fire door and furnace chamber frame easily.
As shown in Figure 5, form corresponding a plurality of protrusion arc surfaces and a plurality of depression arc surface mutually on the contact-making surface of fire door and furnace chamber frame, with regard to present embodiment the protrusion arc surface is set on the door of road, the depression arc surface is set on the furnace chamber frame simultaneously, from the sectional view of present embodiment, the arc surface of each protrusion matches with the depression arc surface when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
The cambered surface width of above-mentioned arc surface structure promptly is not more than 1/4 wavelength of micro-wave oven basic wave from the cross section circular arc portion, the microwave in the micro-wave oven furnace chamber can not leak in the environment for use the space between fire door and furnace chamber frame easily.
As shown in Figure 6, form a plurality of mutual corresponding strip protuberance and groove structures on the contact-making surface of fire door and furnace chamber frame, the strip protuberance matches with groove when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
The depth of groove of above-mentioned protuberance and groove structure and width all are not more than 1/4 wavelength of micro-wave oven basic wave, and the microwave in the micro-wave oven furnace chamber can not leak in the environment for use the space between fire door and furnace chamber frame easily.
Two parts contact-making surface of above-mentioned fire door and furnace chamber frame all is respectively one-shot forming and is stamped to form, and makes the forming process of product simpler, also better processing.
In the micro-wave oven of the present invention, the contact-making surface of fire door and furnace chamber frame is a nonplanar structure, and fire door cooperatively interacts with the shape of the corresponding contact-making surface of furnace chamber frame, at different situations can fire door and the contact-making surface of furnace chamber frame be set to multiple structure, on the one hand fire door and furnace chamber frame are fitted mutually, contact-making surface with fire door and furnace chamber frame further is divided into littler zones of different on the other hand, independently carries out contacting of fire door and furnace chamber frame between each zone of telling.Even if can't reach 100% accurately under the situation in the machining accuracy of fire door and furnace chamber frame, too can be easily be that the length of crack between a door and its frame is controlled within 1/4 wavelength of micro-wave oven basic wave with the length in the space between fire door and the furnace chamber frame, be leaked to the external world thereby reduced micro-wave oven microwave in the furnace chamber when work from the space between fire door and the furnace chamber frame, reduced micro-wave oven the microwave amount of radiation of environment for use on every side.On the other hand, adopt the fire door and the furnace chamber frame of close-fitting on-plane surface contact-making surface structure to have the better sealing property and the degree of coupling, the heat that is furnace chamber inside is not easy to leak from fire door and furnace chamber frame, reduces energy dissipation, improves the operating efficiency of micro-wave oven.In addition,, process simply relatively, controlled production cost effectively because the contact-making surface of fire door and furnace chamber frame all adopts the mode one-shot forming of punching press to form respectively.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (8)
1. micro-wave oven comprises: shell, form the outward appearance of micro-wave oven, and hold and protect the interior various parts of micro-wave oven; Furnace chamber is arranged on the inside of shell, is used to hold and the cavity of heat food; Fire door flexibly connects with shell, can open and close, and by fire door and cooperating of furnace chamber frame sealing furnace chamber; Magnetron is arranged on the furnace chamber outside, produces the microwave that heat food is used; Transformer is for magnetron imports high voltage; Waveguide is connected with magnetron, and the microwave that magnetron is produced passes the oven cavity side wall guided in furnace chamber, and it is characterized in that: the contact-making surface of fire door and furnace chamber frame is a nonplanar structure, and fire door cooperatively interacts with the shape of the corresponding contact-making surface of furnace chamber frame.
2. micro-wave oven according to claim 1 is characterized in that: fire door is mutual corresponding a plurality of folding face structures with the contact-making surface of furnace chamber frame, and the folding face structure when fire door is closed on fire door and the furnace chamber frame cooperatively interacts, and corresponding contact-making surface is fitted tightly.
3. micro-wave oven according to claim 2 is characterized in that: the folding face width degree of above-mentioned folding face structure is not more than 1/4 wavelength of micro-wave oven basic wave.
4. micro-wave oven according to claim 1, it is characterized in that: form corresponding a plurality of protrusion arc surfaces and a plurality of depression arc surface mutually on the contact-making surface of fire door and furnace chamber frame, the arc surface of each protrusion matches with the depression arc surface when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
5. micro-wave oven according to claim 4 is characterized in that: the cambered surface width of above-mentioned arc surface structure is not more than 1/4 wavelength of micro-wave oven basic wave.
6. micro-wave oven according to claim 1, it is characterized in that: form a plurality of mutual corresponding strip protuberance and groove structures on the contact-making surface of fire door and furnace chamber frame, the strip protuberance matches with groove when fire door is closed, and fire door is fitted tightly with the corresponding contact-making surface of furnace chamber frame.
7. micro-wave oven according to claim 6 is characterized in that: the depth of groove of above-mentioned protuberance and groove structure and width all are not more than 1/4 wavelength of micro-wave oven basic wave.
8. according to claim 2,3 or 4 described micro-wave ovens, it is characterized in that: two parts contact-making surface of above-mentioned fire door and furnace chamber frame all is respectively one-shot forming and is stamped to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101566992A CN102235694A (en) | 2010-04-27 | 2010-04-27 | Microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101566992A CN102235694A (en) | 2010-04-27 | 2010-04-27 | Microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102235694A true CN102235694A (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101566992A Pending CN102235694A (en) | 2010-04-27 | 2010-04-27 | Microwave oven |
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| Country | Link |
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| CN (1) | CN102235694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369645A (en) * | 2016-09-14 | 2017-02-01 | 郑州峰泰纳米材料有限公司 | Microwave oven door structure for preventing microwaves from leaking |
| CN106402952A (en) * | 2016-09-14 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Microwave-leakage-preventing device |
-
2010
- 2010-04-27 CN CN2010101566992A patent/CN102235694A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369645A (en) * | 2016-09-14 | 2017-02-01 | 郑州峰泰纳米材料有限公司 | Microwave oven door structure for preventing microwaves from leaking |
| CN106402952A (en) * | 2016-09-14 | 2017-02-15 | 郑州峰泰纳米材料有限公司 | Microwave-leakage-preventing device |
| CN106369645B (en) * | 2016-09-14 | 2018-12-07 | 郑州峰泰纳米材料有限公司 | The door structure of anti-microwave from leakage micro-wave oven |
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Application publication date: 20111109 |