CN1292198C - Cooling structure for door of microwave oven - Google Patents
Cooling structure for door of microwave oven Download PDFInfo
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- CN1292198C CN1292198C CN 02116492 CN02116492A CN1292198C CN 1292198 C CN1292198 C CN 1292198C CN 02116492 CN02116492 CN 02116492 CN 02116492 A CN02116492 A CN 02116492A CN 1292198 C CN1292198 C CN 1292198C
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- door
- air
- microwave oven
- electric control
- control chamber
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Abstract
The present invention relates to a cooling structure for a door of a microwave oven. A cooking chamber, an electric control chamber and a door are arranged in a cavity of a microwave oven, wherein the door can be opened and closed; back plates are arranged behind the cooking chamber and the electric control chamber which is provided with air pipes; a sucking guide rail is arranged on the inner surface of the back plate; the guide rail is provided with a fan; a front panel is provided with an air outlet through which air supplied by the electric control chamber can be discharged; the front panel is arranged in the front of the cavity of the microwave oven; the back of the door is provided with an air inlet which is corresponding to the air outlet; the air inlet leads air discharged out of the air outlet into the door; the air outlet is arranged in the lower end of the front panel; the air inlet and the air outlet are correspondingly arranged in the rear lower end of the door; when the door is closed, the inside of the door is communicated with the electric control chamber. Through the structure of the present invention, the temperature of the door of the microwave oven can be prevented from rising.
Description
Technical field
The present invention relates to a kind of micro-wave oven, relate in particular to a kind of cooling structure.
Background technology
For the driving of general micro-wave oven, the ionic centrifuge and the high-tension transformer that are arranged on electric control chamber inside can produce a lot of heat, cause the temperature rising of door because of the thermal conductance of cooking room inside.In addition, in gastronomical process, the inside of cooking room can produce the steam of high temperature.
So, extraneous air is drawn into the inside of micro-wave oven, make the heat that in the air cooling electric control chamber of micro-wave oven internal flow, produces guarantee the reliability of electric-controlled parts, and the inner steam that produces of cooking room is discharged to the outside of cooking room.
Fig. 1 is the cut-away view of existing micro-wave oven, and Fig. 2 is the air flow condition figure of prior art micro-wave oven.As shown in the figure, the inside of microwave oven cavity 1 is provided with the cooking room 3 of cooking food, and the place ahead of cooking room 3 is provided with the door 5 that carries out turn by hinge.
The right side of cooking room 3 is provided with the electric control chamber 7 that possesses electric-controlled parts, and cooking room 3 is provided with backboard 9 with the rear of electric control chamber 7.Be fixed with on the inner face of backboard 9 and suck guide rail 11, the effect that sucks guide rail 11 is that the guiding micro-wave oven sucks air from the outside.
The electric control chamber 7 of microwave oven cavity 1 sidewall outside is provided with air hose 15; By the extraneous air of above-mentioned suction guide rail 11 guiding cooling ionic centrifuges (MAGNETRON) 17, be incorporated into the inside of cooking room 3 through air hose 15.The bottom of electric control chamber 7, that is the upper end of base plate 18 is provided with high-tension transformer (TRANSFORMER) 19.
Encase microwave oven cavity 1 and electric control chamber 7 by external box of microvave 21, the place ahead of described electric control chamber 7 is provided with control panel portion 23, and control panel portion 23 is provided with the various knobs and the dial (DIAL) of operation micro-wave oven.
Be arranged on the prior art micro-wave oven of microwave oven cavity 1 one side structures for electric control chamber 7, the air of micro-wave oven inside is flowed is elaborated below.
At first, the driving by fan electromotor 13` makes fan 13 rotations suck extraneous airs, and extraneous air is through being formed on the inside that air suction inlet (not shown) on the backboard 9 flow into micro-wave oven.Flow into the air of micro-wave oven inside, send ionic centrifuge 17 and high-tension transformer 19 to and cool off them by the guiding that sucks guide rail 11.
By the air of ionic centrifuge 17, flow into the inside of cooking room 3 through air hose 15.The air that flow into cooking room 3 inside has the steam of cooking room 3 inside, discharges to the outside of cooking room 3, removes the steam of cooking room 3 inside.
But the microwave stove with prior art of said structure has following shortcoming.
Flow into the air of cooking room 3 inside by air hose 15, after cooking room 3 inner loop, discharge to the outside; At this moment, because air only contacts the inside of door 5, door 5 integral body are in time cooled off.Particularly, use at micro-wave oven under the situation of convection heater (CONVECTION HEATER), the temperature of door 5 will be higher.
So on the prior art micro-wave oven, door 5 needs to use the hear resistance relatively higher special substance identical with PC, so improved production cost; In addition, because of the temperature height of door 5, can scald user's accident in use.
Summary of the invention
In order to overcome the above-mentioned shortcoming that existing micro-wave oven exists in design, the invention provides a kind of cooling structure of door for microwave oven, by from the electric control chamber air supplied effectively the cooled microwave stove the door, and in the making of door for microwave oven, can adopt the low material of price, to reduce production costs.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of cooling structure of door for microwave oven, the inside of microwave oven cavity are provided with cooking room, electric control chamber, reach door to be opened/closed, are provided with backboard at cooking room and the electric control chamber rear that is provided with air hose, and the backboard inner face is provided with the suction guide rail, and guide rail is provided with fan; It is characterized in that: the place ahead of microwave oven cavity is provided with front panel, and above-mentioned front panel bottom is provided with air outlet, can will discharge from the electric control chamber air supplied; The back side of described door is provided with and the corresponding air inflow aperture of above-mentioned air outlet, be arranged on the bottom, rear of door, under the door closing state, the air outlet of front panel is connected with the air inflow aperture of door, air inflow aperture with front glass and the air blanketing inner chamber between the sealing plate communicate and constitute door cooling structure.
Cooling structure with door for microwave oven of this structure has following effect: by simple malformation, and the door of cooled microwave stove effectively.
Cooling structure with door for microwave oven of the present invention of said structure can bring following effect:
By structure of the present invention, can prevent that the temperature of door from rising, so above-mentioned door can adopt the low material of hear resistance, finally reduce fee of material, reduce production costs.For example, the front glass of above-mentioned door can adopt hear resistance low, low-cost (ABS) to replace high (PC) of hear resistance, in addition, owing to reduced the temperature of door for microwave oven, so can avoid the accident of being scalded by door because of carelessness in the use, improve security of products because of the user.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the internal structure stereogram of prior art micro-wave oven.
Fig. 2 is the air flow condition figure that prior art micro-wave oven inner air shown in Figure 1 flows.
Fig. 3 is the door open state stereogram of example micro-wave oven door for microwave oven cooling structure of the present invention.
Fig. 4 is the exploded perspective view of example door of the present invention.
The specific embodiment
As shown in Figure 3, microwave stove has following structure: the cooking room of cooking 3; Inside is provided with the electric control chamber 7 of electric-controlled parts; The place ahead of above-mentioned cooking room 30 is provided with the door 5 that carries out turn by hinge.
Described cooking room 3 is arranged on the inside of microwave oven cavity 1, and the place ahead of microwave oven cavity 1 is provided with front panel 31.Under door 5 closing state, front panel 31 contacts with the back of door 5.
The bottom of front panel 31 is provided with air outlet 33, from electric control chamber 7 air supplied, discharges by air outlet 33.Smooth and easy for air is flowed, the shape of air outlet 33 is rectangle or ellipse preferably, and one or more air outlets 33 can be set.
The lower end, rear of door 5 is provided with air inflow aperture 33 ', and the effect of air inflow aperture 33 ' is that the air that guiding is discharged from air outlet 33 flows into the hollow interlayer inside of door 5.That is to say, will describe in detail below that the rear side of door 5 is provided with door frame 43, the bottom of door frame 43 is provided with air inflow aperture 33 ', and air inflow aperture 33 ' is corresponding with the air outlet 33 on being arranged on front panel 31.
So under door 5 closing state, the air outlet 33 of front panel 31 is connected with the air inflow aperture 33 ' of door 5.At this moment, the air inflow aperture 33 ' of door 5 need not form identical shape with the air outlet 33 of front panel 31.
That is to say, be provided with on the plate 31 in front under the situation of a plurality of air outlets 33 that door can be provided with an air inflow aperture 33 ' on 5, perhaps also can be provided with front panel 31 on the inconsistent a plurality of air inflow apertures 33 ' of air outlet 33 numbers that are provided with.
When the closed condition of door 5, flow in order to make the air outlet 33 that air passes through front panel 31 and the air inflow aperture 33 ' of door 5, their upper-lower position should be consistent with each other.So the air inflow aperture 33 ' of door 5 can play the effect of the air of discharging from the air outlet 33 of front panel 31 being guided into door 5 interlayer inner chambers.
The primary structure figure of door 5 shown in Figure 4.As shown in Figure 4, door 5 is made of door-plate 41 that is arranged on front side and the door frame 43 that is arranged on rear side.The inside of door-plate 41 is provided with front glass 45, and the inside of door frame 43 is provided with sealing plate 47.The front glass 45 of door 5 is formed by the strong PC material of hear resistance.
Between the front glass 45 of door 5 and the sealing plate 47 is the air layer with certain space; Flow into the front glass 45 of door 5 and the air inner chamber between the sealing plate 47 and with its cooling by cooling air from electric control chamber 7 supply.
Below, the effect of the cooling structure of door for microwave oven of the present invention with said structure is elaborated.
At first, start the fan electromotor 13 ' that is arranged on electric control chamber 7 inside, make fan 13 rotations; The extraneous air that rotation by fan 13 sucks flow into the inside of micro-wave oven through being formed in air suction inlet (not shown) on the backboard 9.
Flow into the air of microwave oven electric control chamber 7 inside, spray to the place ahead of electric control chamber 7 by the guiding that sucks guide rail 11, cooling settings is at the ionic centrifuge 17 and the high-tension transformer 19 of electric control chamber 7 inside.
By fan 13 guiding, flow into the inside of cooking room 3 through air hose 15 by the air of ionic centrifuge 17.The air that flow into cooking room 3 inside contains the steam of cooking room 3 inside, discharges to the outside of cooking room 3.
On the one hand, the portion of air of spraying to the place ahead of electric control chamber 7, by the bottom of above-mentioned electric control chamber 7, the space that forms between the bottom of process microwave oven cavity 1 and the above-mentioned chassis 18 flow to the below of cooking room 3.
Flow into the microwave oven cavity 1 of cooking room 3 downsides and the air between the base plate 18, discharge to the place ahead of front panel 31 by the air outlet 33 that is arranged on front panel 31 bottoms.
By the air that the air outlet 33 of front panel 31 is discharged, flow into the air blanketing inside of door 5 through the air inflow aperture 33` that is arranged on door bottom, 5 rear; Flow into the air of door 5 air blanketing inside, discharge to the outside by the front glass 45 of above-mentioned door 5 and the space between the sealing plate 47.
So, cooled off the front glass 45 and the sealing plate 47 of door 5 by door 5 bottom leaked-in airs.Finally, by cool off the back of the front glass 45 of door 5 from electric control chamber 7 leaked-in airs; Cool off the front of front glass 45 by the extraneous air of micro-wave oven.
As mentioned above, door 5 cooling structures of micro-wave oven of the present invention prevent that by the inner chamber that flow into door 5 from electric control chamber 7 air supplied the temperature of door 5 from rising.
The basic fundamental thought of the cooling structure of door for microwave oven of the present invention is, makes the air of microwave oven electric control chamber flow into the inner chamber of sandwich-type door.The technical field of the invention is had the technical staff of general knowledge, in basic thought scope of the present invention, can propose the examples of a lot of distortion.
Claims (1)
1, a kind of cooling structure of door for microwave oven, the inside of microwave oven cavity are provided with cooking room, electric control chamber, reach door to be opened/closed, are provided with backboard at cooking room and the electric control chamber rear that is provided with air hose, and the backboard inner face is provided with the suction guide rail, and guide rail is provided with fan; It is characterized in that:
The place ahead of microwave oven cavity is provided with front panel, and above-mentioned front panel bottom is provided with air outlet, can will discharge from the electric control chamber air supplied;
The back side of described door is provided with and the corresponding air inflow aperture of above-mentioned air outlet, be arranged on the bottom, rear of door, under the door closing state, the air outlet of front panel is connected with the air inflow aperture of door, air inflow aperture with front glass and the air blanketing inner chamber between the sealing plate communicate and constitute door cooling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116492 CN1292198C (en) | 2002-04-09 | 2002-04-09 | Cooling structure for door of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116492 CN1292198C (en) | 2002-04-09 | 2002-04-09 | Cooling structure for door of microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450317A CN1450317A (en) | 2003-10-22 |
| CN1292198C true CN1292198C (en) | 2006-12-27 |
Family
ID=28680747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02116492 Expired - Fee Related CN1292198C (en) | 2002-04-09 | 2002-04-09 | Cooling structure for door of microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1292198C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100600102B1 (en) * | 2003-12-17 | 2006-07-13 | 엘지전자 주식회사 | Electric oven |
| KR100862112B1 (en) * | 2006-09-01 | 2008-10-09 | 엘지전자 주식회사 | Cooking apparatus |
| CN107166455B (en) * | 2017-06-30 | 2019-08-23 | 广东美的厨房电器制造有限公司 | Cooking apparatus |
-
2002
- 2002-04-09 CN CN 02116492 patent/CN1292198C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1450317A (en) | 2003-10-22 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |