CN100455895C - Upper pipeline for microwave oven - Google Patents
Upper pipeline for microwave oven Download PDFInfo
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- CN100455895C CN100455895C CNB2004100719745A CN200410071974A CN100455895C CN 100455895 C CN100455895 C CN 100455895C CN B2004100719745 A CNB2004100719745 A CN B2004100719745A CN 200410071974 A CN200410071974 A CN 200410071974A CN 100455895 C CN100455895 C CN 100455895C
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Abstract
The present invention relates to an upper pipeline of a microwave oven, which comprises an air supply hole, an air exhaust hole and an air shield generating device, wherein the air supply hole is used for transporting air sucked from an air suction port on the wall surface of a cavity body into the cavity body; the air exhaust hole is used for discharging hot air in the cavity body outside the cavity body; the air shield generating device can prevent water vapor generated in the process of cooking from moving to an oven door. The upper pipeline provided by the present invention can use the air shield generating device thereon for preventing the water vapor generated in the process of cooking food inside the cavity body from moving to the door in the front of the cavity body. Therefore, the door glass can not become blurring, and a user can observe the cooking state of the food inside the cavity body easily. Moreover, the water vapor can not move toward the door. Therefore, when the temperature of the cavity body is reduced after the food is cooked, the present invention can prevent the water vapor from becoming beads which blur the bottom surface of the cavity body. Consequently, the present invention can maintain a clean state of a microwave oven.
Description
Technical field
The present invention relates to a kind of micro-wave oven, particularly relate to a kind of upper pipeline that can control the moving micro-wave oven of cavity internal air stream.
Background technology
In general, micro-wave oven is that a kind of microwave of the magnetron generation of connecting power supply that utilizes shines heating objects such as food, thus 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 commercial microwave oven that is equipped with large-scale or a plurality of magnetrons.In addition, micro-wave oven can also be divided according to the mode of heat food, and home-use micro-wave oven generally adopts the glass rotating disk mode of rotation food, and commercial microwave oven mainly adopts the stirring fan mode of microwave at random.In addition, commercial microwave oven is mainly used in the food supply retail shop of high convenience store of frequency of utilization or short time cooking food, and it needs high relatively output than home-use micro-wave oven usually.Fig. 1 is the commercial microwave oven STRUCTURE DECOMPOSITION stereogram of prior art.Fig. 2 is provided with the microwave oven cavity part-structure stereogram of upper pipeline for top among Fig. 1.As shown in Figure 1 and Figure 2, this commercial microwave oven mainly comprises shell, cavity 20 and the electricity storage chamber 30 that forms external structure.In addition, it also comprises the door 40 that is arranged on cavity 20 fronts.Wherein, shell forms the external structure of micro-wave oven, and it has the effect of protection internal cavity 20 simultaneously, and therefore, shell is general to be made with the steel plate with certain intensity.Such shell is to be that the center is provided with cavity 20, and it comprises and closes above the cavity 20 simultaneously and the rear boards 17 at the top panel 11 of two sides, the bottom panel 13 of protection bottom surface, the front panel 18 that forms cavity 20 fronts and protection cavity 20 back sides.Cavity 20 is actually the space of cooking food, and it has the cuboid structure of front opening, the food after promptly can putting into food and take out the cooking from opening the place ahead of cavity 20.The top of cavity 20 is that outer top surface is provided with the waveguide pipe 21 that can give cavity 20 inside with the microwave transmission of magnetron generation.In addition, a side of waveguide pipe 21 is provided with the synchronous motor M that can drive the following stirring fan that will illustrate.The outer top surface of cavity 20 is provided with waveguide pipe 21, and also is provided with waveguide pipe below the outside.If the upper and lower surface of cavity 20 all is provided with waveguide pipe 21, microwave will with from top to bottom and mode from bottom to top be input to the inside of cavity 20.Electricity storage chamber 30 is for being positioned at the space on enclosure right side, and its inside is provided with the required a plurality of electronic units of running of microwave oven.Electricity storage chamber 30 inside are provided with a plurality of electronic units such as transformer 31, magnetron 33, centrifugal fan 35 and capacitor 37, and the inside of electricity storage chamber 30 is to be provided with dividing plate 39 between transformer 31 and the centrifugal fan 35, and transformer 31, centrifugal fan 35, capacitor 37 and dividing plate 39 all be fixed on sub-panel S above, sub-panel S then is provided with it above bottom panel 13 mutually across a certain distance.These electronic units, particularly transformer 31 and magnetron 33 have the effect that can produce the microwave that inputs to cavity 20 inside.These electronic units can generate heat in the process that produces microwave, and therefore, in the time of cooking food, the temperature of electricity storage chamber 30 will rise, and therefore, need centrifugal fan 35 to suck air outside for the electricity storage chamber 30 of cooling off heating.As shown in Figure 2, the upper end of cavity 20 is provided with upper pipeline 23.Upper pipeline 23 is made of rectangular slab, and its left end is provided with exhaust outlet 23a, and its place ahead then is provided with the air outlet 23b that is connected with upper pipeline 23.Leave certain clearance when upper pipeline 23 is provided with and between the end face of cavity 20, the reason of She Zhiing is for not shown stirring fan is set between the end face of cavity 20 and upper pipeline 23, simultaneously in order to make the place ahead that is transported to cavity 20 by air entry inhaled air not shown on cavity 20 right side walls by air outlet 23b like this.The process that upper pipeline 23 is set at the end face of cavity 20 is at the rear portion of cavity 20 end faces and anterior not shown combined hole is set, and at the combined hole corresponding through hole 23c of the place ahead of upper pipeline 23 setting with cavity 20, the rear also is provided with and the corresponding through hole 23c ' of the combined hole of cavity 20.At first, upper pipeline 23 is close to the end face of cavity 20, then with the through hole 23c of upper pipeline 23, the combined hole alignment of 23c ' and cavity 20, run through through hole 23c with screw 25 at last, 23c ' and it is combined in the combined hole of cavity 20 so just can be fixed on upper pipeline 23 end face of cavity 20.If upper pipeline 23 said method setting, the stirring fan of its inside is driven by synchronous motor M and rotate, thereby the microwave that will be input to cavity 20 inside confuses.The lower end of cavity 20 inside is provided with not shown ceramic wafer, and in fact this ceramic wafer forms the bottom surface of cavity 20.But, upper pipeline with said structure has following problem: when microwave irradiation arrives the food of cavity 20 inside, moisture in the food will produce evaporation, so ponding will appear in the inside of cavity 20, and also can the condensate water steam on the door 40 of cavity 20 fronts, thereby the glass of door 40 is thickened, just can not check the cooking status of cavity 20 inside like this from the outside.In addition, when shutting down, the temperature of door 40 will descend, so door steam on glass will become the globule and drip the bottom surface of making cavity 20 front ends thus dirty.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind ofly can prevent a last condensate water steam, thus the upper pipeline of the clean micro-wave oven of holding chamber soma.
In order to achieve the above object, the upper pipeline of micro-wave oven provided by the invention comprises: be transported to the air outlet that inside cavity is provided with for making by cavity wall air entry inhaled air; For the hot-air that makes inside cavity is arranged to the outside exhaust outlet that is provided with of cavity; The air that moves to reveal with the steam that can prevent the gastronomical process generation shields generation device.
Described air shielding generation device is by constituting at the air guiding port of the front end setting of upper pipeline and the air guide device that can tilt to carry from the air that the air guiding port is sent.
Described air guiding port is carried the air entry inhaled air from the cavity wall downwards.
Described air guide device is to form around protruding on every side of air guiding port.
Upper pipeline provided by the invention can utilize the air shielding generation device on it to prevent to cook the reveal of steam to the cavity front that produces in the inside cavity food process and move, thereby a glass is thickened, the user just can observe the cooking status of inside cavity food at an easy rate like this.In addition, owing to steam can not move to reveal, thus behind the cooking food,, can prevent that also steam from becoming the globule and the bottom surface of the cavity of making dirty even the temperature of cavity descends, thus the state that micro-wave oven is kept clean.
Description of drawings
Be elaborated below in conjunction with the upper pipeline of the drawings and specific embodiments to micro-wave oven provided by the invention.
Fig. 1 is the commercial microwave oven STRUCTURE DECOMPOSITION stereogram of prior art.
Fig. 2 is provided with the microwave oven cavity part-structure stereogram of upper pipeline for top among Fig. 1.
Fig. 3 is provided with the microwave oven cavity part-structure stereogram of upper pipeline for top provided by the invention.
Fig. 4 is the upper pipeline upward view of micro-wave oven provided by the invention.
Fig. 5 is the upper pipeline significant points part-structure stereogram among Fig. 4.
Accompanying drawing critical piece label:
100: upper pipeline 110: body
110a: exhaust outlet 130: rake
130a: air outlet 200: air guiding port
250: air guide device 250a: lug boss
250b: hang plate
The specific embodiment
As mentioned above, micro-wave oven comprises shell, is provided with the electricity storage chamber of a plurality of electronic units and the cavity of placing gratin.In addition, the inner upper end of cavity is provided with upper pipeline.As shown in Figure 3, in micro-wave oven provided by the invention, the end face of cavity 20 is provided with upper pipeline 100, and its right side wall is provided with not shown air entry, is guided and be transported to the inside of cavity by upper pipeline 100 by the air entry inhaled air.In addition, upper pipeline 100 also has the guiding function that the inside cavity hot-air is discharged to the cavity outside.Aforesaid air conveying is to be undertaken by the not shown rotation that is arranged on the stirring fan between cavity end face and the upper pipeline 100.As shown in Figure 4, upper pipeline 100 is made of body 110 and rake 130.The rear portion of body 110 is provided with exhaust outlet 110a, and rake 130 is provided with air outlet 130a.Body 110 constitutes the pipe stem of upper pipeline 100, and it is made of rectangular slab.The rear portion of body 110 is provided with the exhaust outlet 110a that is made of a plurality of vias.Therefore, as if the top that upper pipeline 100 is arranged on cavity, the hot-air of inside cavity will be discharged by exhaust outlet 110a.Though do not illustrate, be provided with air outlet with the corresponding position of exhaust outlet 110a on the end face of cavity, so just can be by the outside of air outlet row to cavity by the air of exhaust outlet 110a discharge.Exhaust outlet 110a is arranged to certain angle, and this is to go back to the inside of cavity in order to prevent from the air inversion that exhaust outlet 110a discharges.The place ahead of body 110 is provided with rake 130, can carry air to the reveal in cavity the place ahead by the following air outlet that will illustrate.Rake 130 is provided with air outlet 130a.Air outlet 130a is provided with a plurality of along rake 130.Therefore,, just can carry to inside cavity, and this air is delivered directly to the side behind the door in cavity the place ahead, i.e. cavity space and contacted by air outlet 130a from the air entry leaked-in air of cavity if upper pipeline 100 is arranged on the top of cavity.In addition, at the front end of body 110, promptly be provided with air guiding port 200 between body 110 and the rake 130, its left side from upper pipeline 100 is provided with a plurality of to the right side.As shown in Figure 5, air guiding port 200 is made of rectangular opening, and it can make upper pipeline 100 form the perforation of above-below directions.The outside of air guiding port 200 is provided with air guide device 250, and air guide device 250 is made of lug boss 250a and hang plate 250b.Wherein, lug boss 250a protrudes from the upper end of body 110 and forms, and hang plate 250b then is that the leading section from lug boss 250a forms to front lower place inclination certain angle.As mentioned above, air guiding port 200 is provided with air guide device 250, so the air that flows out from air guiding port 200 will guide throughput direction by air guide device 250.Describe upper pipeline 100 below in detail: the not shown stirring fan that is arranged between upper pipeline 100 and the cavity end face has the effect of confusing the microwave that is input to inside cavity, and therefore, the microwave that confuses passes upper pipeline 100 and is input to inside cavity.For making microwave pass upper pipeline 100, upper pipeline 100 the most handy synthetic resin are made.Therefore, upper pipeline 100 is that the after-applied high temperature and high pressure of injecting synthetic resin raw material forms in specific mold.Method by finishing upper pipeline 100 molds can form air guiding port 200 and air guide device 250 at an easy rate.In addition, air guiding port 200 can form with the method for tapping machine perforate, and the side that air guide device 250 also can be fixed on air guiding port 200 with other parts constitutes.The air flow process that cavity is provided with under upper pipeline 100 states is as follows: because the right side wall of cavity upper end is provided with air entry, can flow between cavity and the upper pipeline 100 by this air entry so air outside is the air of electricity storage chamber.Leaked-in air will move to the place ahead of upper pipeline 100 under the promotion of stirring fan, and wherein portion of air is carried to reveal by the air outlet 130a of upper pipeline 100, and remaining air is then carried downwards by air guiding port 200.At this moment, owing to guided by the hang plate 250b of air guide device 250, the flow direction of air can be changed by the air of air guiding port 200 conveyings.On the other hand, in the process of microwave irradiation inside cavity gratin, the air of inside cavity is heated, and heated air passes through the exhaust outlet 110a of upper pipeline 100 and the air outlet of cavity end face is arranged to the cavity outside, and row is discharged to the outside of micro-wave oven at last to the cavity air outside.
Claims (4)
1, a kind of upper pipeline of micro-wave oven is characterized in that: the upper pipeline of described micro-wave oven (100) comprising: be transported to the air outlet (130a) that inside cavity is provided with for making by cavity wall air entry inhaled air; For the hot-air that makes inside cavity is arranged to the outside exhaust outlet (110a) that is provided with of cavity; The air that moves to reveal with the steam that can prevent the gastronomical process generation shields generation device.
2, the upper pipeline of micro-wave oven according to claim 1 is characterized in that: described air shielding generation device will be made of from the air guide device (250) that the air inclination that air guiding port (200) are sent is carried air guiding port (200) and the energy that the front end at upper pipeline (100) is provided with.
3, the upper pipeline of micro-wave oven according to claim 2 is characterized in that: described air guiding port (200) is carried the air entry inhaled air from the cavity wall downwards.
4, the upper pipeline of micro-wave oven according to claim 2 is characterized in that: described air guide device (250) is to form around protruding on every side of air guiding port (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100719745A CN100455895C (en) | 2004-09-20 | 2004-09-20 | Upper pipeline for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100719745A CN100455895C (en) | 2004-09-20 | 2004-09-20 | Upper pipeline for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752531A CN1752531A (en) | 2006-03-29 |
| CN100455895C true CN100455895C (en) | 2009-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100719745A Expired - Fee Related CN100455895C (en) | 2004-09-20 | 2004-09-20 | Upper pipeline for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455895C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221949A (en) * | 1977-05-31 | 1980-09-09 | Sharp Kabushiki Kaisha | Abnormal temperature detection and microwave generation suppression in a microwave oven |
| CN1459587A (en) * | 2002-05-23 | 2003-12-03 | 三星电子株式会社 | Wall microwave oven |
-
2004
- 2004-09-20 CN CNB2004100719745A patent/CN100455895C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221949A (en) * | 1977-05-31 | 1980-09-09 | Sharp Kabushiki Kaisha | Abnormal temperature detection and microwave generation suppression in a microwave oven |
| CN1459587A (en) * | 2002-05-23 | 2003-12-03 | 三星电子株式会社 | Wall microwave oven |
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| Publication number | Publication date |
|---|---|
| CN1752531A (en) | 2006-03-29 |
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| C06 | Publication | ||
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Granted publication date: 20090128 Termination date: 20091020 |