CN1278074C - Apparatus of air flow for microwave oven - Google Patents
Apparatus of air flow for microwave oven Download PDFInfo
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- CN1278074C CN1278074C CN 02117042 CN02117042A CN1278074C CN 1278074 C CN1278074 C CN 1278074C CN 02117042 CN02117042 CN 02117042 CN 02117042 A CN02117042 A CN 02117042A CN 1278074 C CN1278074 C CN 1278074C
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- cavity
- heater
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- wave oven
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Abstract
The present invention provides a device for the air flow of a microwave oven. The present invention relates to a device for the air flow of a microwave oven, which is used for cooling heat generated in the microwave oven. The present invention has the structure that the present invention comprises a cavity of which the inside is a cooking chamber; heaters are arranged on the upper surface and the lower surface of the cavity; an air sucking fan assembly for transmitting cold air is positioned in an air sucking area composed of an inner partition plate of the microwave oven and a shutter plate with holes on the back surface of the inner partition plate; one side of an air exhaust hole at the upper part of the partition plate is communicated with an output port of the air sucking fan assembly, and the other side is communicated with an air channel area on the upper surface of the cavity; electronic components are arranged on the upper surface of the cavity. The present invention has the advantage that the present invention can cause the air inside the microwave oven to orderly flow to cool heat generated by the heaters and the electronic components by adopting only one air sucking fan assembly. The microwave oven works by using only one motor, which relatively lowers noise, realizes low noise and reduces the manufacturing cost of the microwave oven.
Description
Technical field
What the present invention relates to is micro-wave oven, particularly be the micro-wave oven air circulation device of the heat that produces about the cooled microwave furnace interior
Background technology
Micro-wave oven mainly utilizes microwave to heat article, also adopts heater as auxiliary thermal source sometimes, and the form of this micro-wave oven is varied, and embedded be wherein a kind of.Built-in microwave oven can be placed in the furniture in kitchen.
Fig. 1 is the primary structure of the built-in microwave oven of prior art, and Fig. 2 is the air flow process of cooling heater in built-in microwave oven.As seen from the figure, cavity 50 inside of formation micro-wave oven framework are the cooking rooms 52 of cooking article.The right side of cooking room 52 for the electric control chamber 2 of placing various electronic units '.Electric control chamber 2 ' in have cooling electronic components to produce the cooling fan 2 of heat ".
The control panel 58 that drives micro-wave oven is arranged in the upper end of micro-wave oven suction grille 5.Simultaneously, left side of face has the exhaust motor assembly 10 that the microwave furnace air is flowed on cavity 50, for the suction air that sucks grid 5 provides motive power, and the air after will flowing in cooking room is delivered to the bottom by a side of cavity 50, and is discharged to the outside by air discharge grille 56.
Be provided with below the cavity 50 to the following heater 12 that heat is provided by gratin in the cooking room 52.Following heater 12 is covered by cover of heater 14.Cover of heater 14 is in air duct 16.Air duct 16 is the passages that allow cooling descend the air communication of heater 12 and cover of heater 14 temperature to cross, and is provided with cooling fan 18 down at its right-hand member.
On cavity 50, be provided with upper heater 90.Upper heater 90 is given in the cooking room 52 above cavity 50 heat is provided, and is covered with by cover of heater 22.The air duct 24 that closed heater lid 22 is arranged on cavity 50.Air duct 24 is passages of steering current in order to cool off upper heater 90 and cover of heater 22, is provided with top combination of fans body 25 at the right-hand member of air duct 24.Give the air that cooling upper heater 90 is provided in the air duct 24.Upside at air duct 24 has insulator 26.Insulator 26 obstructs and the heat of avoiding upper heater 90 to be produced are delivered between insulator 26 and the shell 112.Between the left surface of cavity 50 and shell 112, be provided with insulator 26, make by the transfer of air behind the air duct 24 to lower passage.
Air in the prior art micro-wave oven flows and is driven by exhaust motor group and body 10.After extraneous air enters into the top of micro-wave oven by suction grille 5, pressing the direction shown in the arrow among Fig. 1 flows, blown by exhaust motor assembly 10 and to make its left side along cavity 50 be delivered to the bottom, the space between the negative (not looking among the figure) of bottom by below air duct 16 and micro-wave oven bottom surface is discharged outside the housings by air discharge grille 56 again.
In order to cool off upper heater 90, start top combination of fans body 25, be directed in the air duct 24 by its air-flow that forms, in the process of the upper heater 90 that covers through cover of heater 22, make temperature controlled.Passed through the air of air duct 24, moved to the bottom of cavity 50, and passed through air discharge grille 7 and discharge outside the cavitys by the passage between insulator 26 and cavity 50 left side walls.
The micro-wave oven of prior art for portion within it forms air stream, needs to use a plurality of fan groups all 2 ", 10,18,25, when work, produce very big noise.Owing to used a plurality of combination of fans bodies to increase the manufacturing cost of micro-wave oven.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of to adopt a combination of fans body to be positioned at the space that can suck extraneous air, realize that the micro-wave oven inner air flows the device of the heat that is produced when cooled microwave furnaceman does.
The device that a kind of micro-wave oven air flows, its structure include inside and are the cavity of cooking room, and with following having heaters, the drawing fan assembly that transmits cold air is positioned at the suction air section that micro-wave oven internal partition and its back side shutter board with holes is formed above the cavity; Electronic unit is housed above the cavity, and steam vent one side on dividing plate top is communicated with the delivery outlet of drawing fan assembly, and its opposite side is communicated with air duct above the cavity; Heater above the cavity covers and is positioned at air duct by the cover of heater with a plurality of through holes, the air duct two ends be open shape and below cavity two side areas, cavity heater area and outer exhaust grid be communicated with, motherboard is arranged above the air duct.
The invention has the beneficial effects as follows:, the present invention has only adopted a drawing fan assembly, can make the micro-wave oven inner air form orderly flowing, the heat that cooling heater and electronic unit produce.Owing to have only a motor in rotation during micro-wave oven work, relatively reduced noise, realize low noiseization, and only adopted a high price motor can reduce the manufacturing cost of micro-wave oven.
Description of drawings
Fig. 1 is the schematic perspective view of prior art built-in microwave oven furnace bottom face portion structure;
Fig. 2 is the mobile sectional schematic diagram of Fig. 1 micro-wave oven inner air;
Fig. 3 is the example structure schematic perspective view that micro-wave oven air of the present invention flows;
Fig. 4 is Fig. 3 right side view cut-away section structure and air flow condition schematic diagram;
Fig. 5 is the working state figure of the air flow process of Fig. 3.
The specific embodiment
Below in conjunction with the accompanying drawing explanation detailed to embodiments of the invention: the present invention is the device that the micro-wave oven air flows as seen from the figure, its structure includes the inner cavity 50 of cooking room 52 that is, with following having heaters 90,100, it is characterized in that the drawing fan combination 70 of transmitting cold air is positioned at the suction air section that micro-wave oven internal partition 60 and its back side shutter board 75 with holes is formed above the cavity 50; Steam vent 62,64 1 sides on dividing plate 60 tops are communicated with the delivery outlet of drawing fan assembly 70, and its opposite side is communicated with air duct 92 above the cavity 50; Above the cavity 50 electronic unit is housed.
In microwave oven cavity 50 inside are cooking rooms 52.Cooking room 52 utilizes the heat of microwave or heater to heat by gratin.Form the air stream that moves to the bottom by the top of cavity 50 between the shell 112 of cavity 50 both sides external walls and micro-wave oven.
In the front of micro-wave oven is the fire door 54 of switch cooking room 52, and handle 55 is arranged on the fire door 54.Be air discharge grille 56 below the fire door 55, it can make the air of micro-wave oven inner loop discharge outside; It on fire door 55 control panel 58 that drives micro-wave oven work and show its duty.
Zone before and after the inside of micro-wave oven is divided into by dividing plate 60.Owing to adopted dividing plate 60, the skin of micro-wave oven is than the easier suction extraneous air of internal layer.Formed the 1st and the 2nd steam vent 62,64 of blow out air above cavity 50 on dividing plate 60 tops.
Below the various electronic units that are arranged on above the cavity 50 are described.On the right side of cavity 50 (not looking among the figure), be provided with magnetron 80.Respectively be provided with high-tension transformer 82 and high-voltage capacitance 84 in its left side.
The inside of subtend cooking room 52 provides the structure of heater heat to describe.On cavity 50, be provided with upper heater 90.Upper heater 90 is covered by cover of heater 91, is in the air duct 92.Formed a plurality of through holes on the cover of heater 91, the tempering air stream that drawing fan assembly 70 is produced guides to described cover of heater 91 inside.
Downside at cavity 50 is provided with the following heater 100 that the heater heat is provided to cooking room 52 inside.Following heater 100 is covered by cover of heater 101.Following heater 100 adopts the ceramic heater of Unsupervised temperature.On cover of heater 101, form through hole and make the inner air communication mistake that produces of micro-wave oven, with the too much rising of the temperature that prevents down heater 100.
53 expressions of drawing symbol are arranged on the rotating disk of cooking room 52,53 ' be the rotary tray motor that driving force is provided to the rotation of rotating disk 53.
Below, micro-wave oven air of the present invention is flowed describes in conjunction with the accompanying drawings:
At first, enter micro-wave oven inside from the outside by drawing fan assembly 70 inhaled airs.That is, during drawing fan assembly 70 work extraneous air by suction hole 76,76 ' enter in the zone that forms by dividing plate 60 and shutter board 75.The air that is inhaled into is delivered to the upper space of the cavity of being divided by dividing plate 60 50 by the 1st steam vent 62 and the 2nd steam vent 64 after the two ends of drawing fan assembly 70 suck.Transmit in this manner, an airborne part can enter the inside of air duct 92.The a plurality of through holes on the cover of heater 90 are crossed in the circulation of air that enters into air duct 92, enter the inside cooling upper heater 90 of cover of heater 91.Simultaneously, enter into the air of the interior cooling upper heater of air duct 92, the two ends of the opening by air duct 92 guide to cavity 50 and shell end; The air at two ends forms mobile evacuating air stream by the space between cavity 50 both sides and the shell 112 in the bottom and the space between the base plate 110 of cavity 50 above the cavity 50.Airborne another part air that drawing fan assembly 70 is discharged by the described the 1st and the 2nd steam vent 62,64, be used for the various electronic units of cooling settings on cavity 50 as: the motherboard 93 above the air duct 92, be arranged on magnetron 80, high-tension transformer 82 and high-voltage capacitance 84 above the front end of cavity 50.The air that has cooled off electronic unit flow between the following and negative 110 of cavity 50 and also forms the evacuating air stream that flows.Flow to below the cavity 50 and the stream of the evacuating air between the base plate 110 is discharged to the micro-wave oven outside by air discharge grille.Simultaneously, the part in the evacuating air stream through being arranged on following heater 100 below the cavity 50 and rotary tray motor 53 ' process in play cooling.The part of the air stream of cooling electronic components " is delivered to the inside of described cooking room 52, removes the steam of cooking room 52 inside by suction hole 53.Be discharged to the outside from the air of cooking room 52 outputs with described evacuating air stream.
Claims (6)
1. the device that flows of a micro-wave oven air, its structure includes the inner cavity (50) of cooking room (52) that is, with following having heaters (90), (100), the drawing fan assembly (70) that transmits cold air is positioned at the suction air section that micro-wave oven internal partition (60) and its back side shutter board (75) with holes is formed above the cavity (50); Cavity is equipped with electronic unit above (50), it is characterized in that the steam vent (62) on dividing plate (60) top, the delivery outlet that (64) one sides are communicated with drawing fan assembly (70), and its opposite side is communicated with air duct (92) above the cavity (50); Heater (90) above the cavity (50) covers and is positioned at air duct (92) by the cover of heater (91) with a plurality of through holes, air duct (92) two ends are open shape and are communicated with cavity (50) two side areas, cavity (1) following heater (100) zone and outer exhaust grid (56), and motherboard (93) is arranged above the air duct (92).
2. according to the device described in the claim 1, it is characterized in that drawing fan assembly (70) is made up of the heat insulation fan of a motor and both sides.
3. according to the device described in claim 1 or 2, it is characterized in that outer exhaust grid (56) is positioned on the following micro-wave oven front panel of cavity (50).
4. according to the device described in claim 1 or 2, it is characterized in that on micro-wave oven back side shutter board (75), shell (112) and the base plate (110) a plurality of suction holes being arranged.
5 according to the device described in the claim 1, it is characterized in that described electronic unit includes magnetron (80), high-tension transformer (82), high-voltage capacitance (84).
6. according to the device described in claim 1 or 2, it is characterized in that heater 100 is ceramic heater down, and cover by band through hole cover of heater 101.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117042 CN1278074C (en) | 2002-04-29 | 2002-04-29 | Apparatus of air flow for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117042 CN1278074C (en) | 2002-04-29 | 2002-04-29 | Apparatus of air flow for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455163A CN1455163A (en) | 2003-11-12 |
| CN1278074C true CN1278074C (en) | 2006-10-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117042 Expired - Fee Related CN1278074C (en) | 2002-04-29 | 2002-04-29 | Apparatus of air flow for microwave oven |
Country Status (1)
| Country | Link |
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| CN (1) | CN1278074C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102112811A (en) * | 2008-08-08 | 2011-06-29 | 夏普株式会社 | Heating cooker |
| US11197353B2 (en) | 2019-08-01 | 2021-12-07 | Haier Us Appliance Solutions, Inc. | Over-the-range microwaves having one or more airflow features |
| US11202347B2 (en) | 2019-08-26 | 2021-12-14 | Haier Us Appliance Solutions, Inc. | Over-the-range microwaves having one or more airflow features |
| US11821631B2 (en) | 2020-07-24 | 2023-11-21 | Haier Us Appliance Solutions, Inc. | Over-the-range microwave including airflow regulating features |
| US11821633B2 (en) | 2020-07-24 | 2023-11-21 | Haier Us Appliance Solutions, Inc. | Over-the-range microwave including airflow regulating features |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200304B (en) * | 2011-01-26 | 2012-10-03 | 济南佳泰电器有限公司 | Furnace body of microwave oven |
| KR101943968B1 (en) * | 2017-09-25 | 2019-01-30 | (주)아모레퍼시픽 | Apparatus for manufacturing hydrogel pack for skin care and contorl method thereof |
-
2002
- 2002-04-29 CN CN 02117042 patent/CN1278074C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102112811A (en) * | 2008-08-08 | 2011-06-29 | 夏普株式会社 | Heating cooker |
| US11197353B2 (en) | 2019-08-01 | 2021-12-07 | Haier Us Appliance Solutions, Inc. | Over-the-range microwaves having one or more airflow features |
| US11202347B2 (en) | 2019-08-26 | 2021-12-14 | Haier Us Appliance Solutions, Inc. | Over-the-range microwaves having one or more airflow features |
| US11821631B2 (en) | 2020-07-24 | 2023-11-21 | Haier Us Appliance Solutions, Inc. | Over-the-range microwave including airflow regulating features |
| US11821633B2 (en) | 2020-07-24 | 2023-11-21 | Haier Us Appliance Solutions, Inc. | Over-the-range microwave including airflow regulating features |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1455163A (en) | 2003-11-12 |
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Granted publication date: 20061004 |