CN1265128C - Air flow system for microwave oven - Google Patents
Air flow system for microwave oven Download PDFInfo
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- CN1265128C CN1265128C CN 02117517 CN02117517A CN1265128C CN 1265128 C CN1265128 C CN 1265128C CN 02117517 CN02117517 CN 02117517 CN 02117517 A CN02117517 A CN 02117517A CN 1265128 C CN1265128 C CN 1265128C
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- air
- cavity
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- air flow
- wave oven
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Abstract
The present invention discloses an air flow system of a microwave oven, which comprises a front grid and an airflow generator, wherein the front grid comprises an air absorption part absorbing outside air into the inside of the microwave oven and an air exhaust part exhausting air circulated inside the microwave oven to the outside; the airflow generator is positioned at one side of a cavity and forms airflow inside the microwave oven by that the air absorbing part absorbs outside air; After cooling components arranged outside the cavity in the process of flowing along the cavity, part of the airflow generated by the airflow generator is outputted by the air exhaust part to form airflow cooling the components, and the other part flows to the inside of the cavity and outputted by the air exhaust part to form airflow inside the cavity. The present invention reduces fan assemblies, simplifies installation process, lowers manufacturing cost and reduces noise.
Description
Technical field
The present invention relates to micro-wave oven, especially simplify the micro-wave oven air flow system of internal structure.
Background technology
Micro-wave oven is to utilize voltage to produce microwave, and the microwave directive is nursed one's health the device that thing heats.In general, the most basic mode of heating of micro-wave oven is with the quilt conditioning thing in the microwave directive cavity, but this microwave heating has more single characteristic, and therefore people are provided with auxiliary heater as another heating source in micro-wave oven inside recently.Because of being provided with auxiliary heating source, can obtaining heat of high temperature in the short period of time, thereby improve conditioning speed.But during for fear of high temperature to the damage of each building block and append cooling device is set.The micro-wave oven of this function is broadly divided into the exhaust micro-wave oven that possesses degassing function that is placed on the general micro-wave oven that uses on the desk and is arranged on baking box top wall.The design inclination of the kitchen articles of picture baking box or pickles special refrigerator coordinates household appliances and furniture in the kitchen mutually in embedded recently, brings associative perception to the user.
Built-in microwave oven (being designated hereinafter simply as micro-wave oven) to the conventional art design describes with reference to the accompanying drawings.Fig. 1 is the bottom perspective view that the micro-wave oven of conventional art design is wanted portion's structure, and Fig. 2 is the mobile sectional drawing of inner air of the micro-wave oven of conventional art design.As seen from the figure, constitute the cavity 1 inner conditioning chamber 2 that forms the various article of conditioning of micro-wave oven framework.One side of the cavity 1 on conditioning chamber 2 next doors is electricity storage chamber 2 ' that the electronic unit of various formation micro-wave ovens is set.In electricity storage chamber 2 ', be provided with the cooling fan assembly 2 that cooling electronic components produces heat ".Conditioning chamber 2 by fire door 3 optionally with exterior.Fire door 3 is switch conditioning chamber 2 inside optionally, divide the inside and outside of conditioning chamber 2 in the conditioning process.Is to the inner suction grille 5 that sucks air of micro-wave oven on fire door 3 tops of micro-wave oven front, and is that the air after flowing in micro-wave oven is discharged to outside air discharge grille 7 in the bottom of fire door 3.The control panel 8 that the control micro-wave oven is arranged in the upper end of the suction grille 5 of micro-wave oven front.Simultaneously, left side of face being provided with makes the exhaust motor assembly 10 that air flows on micro-wave oven internal cavity 1, exhaust motor assembly 10 provides the motive power by the suction air that sucks grid 5, and air that will be after internal flow is delivered to the bottom by a side of cavity 1, outputs to the outside by air discharge grille 7 again.Below cavity 1, be provided with the lower heater 12 that heat is provided by the conditioning thing to conditioning chamber 2 inside.Lower heater 12 is covered by cover of heater 14, and cover of heater 14 is covered by air duct 16.Air duct 16 is that the air-flow place is provided with bottom cooling fan 18 at an upper portion thereof for the temperature of cooling off upper portion heater 12 and cover of heater 14 and passage that cooling blast is passed through.
On cavity 1, be provided with upper portion heater 20.The top conditioning chamber 2 of giving that upper portion heater 20 is positioned at cavity 1 provides heat, and is covered by cover of heater 22.On cavity 1, be provided with the air duct 24 of closed heater lid 22.Air duct 24 is cover 22 structures of steering current also in order to cool off upper portion heater 20 and heating, is provided with top fan component 25 at the upper air place of air duct 24.Top fan component 25 provides the air of cooling upper portion heater 20 for air duct 24 inside.Be provided with dividing plate 26 between side of cavity 1 and shell 28, formation will be by the passage of the transfer of air behind the air duct 24 to the bottom.
The micro-wave oven of the conventional art design of said structure is driven by exhaust motor assembly 10, and the top in micro-wave oven produces air stream.That is, extraneous air enters into the top of micro-wave oven by suction grille 5, and in the top flow air shown in the arrow among Fig. 1, be delivered to the bottom by the side of exhaust motor assembly 10 by cavity 1.The air that is delivered to the bottom by air duct 16 the bottom and be equivalent to space between the chassis (not shown) of micro-wave oven bottom surface by air discharge grille 7 outputs.
In order to cool off upper portion heater 20, drive top fan component 25.The air-flow that is formed by top fan component 25 is directed to the inside of air duct 24, is carrying out temperature exchange in by the process of heater lid 22 upper portion heaters that cover 20.By the air of air duct 24, the passage between process dividing plate 26 and cavity 1 sidewall moves to the bottom of cavity 1, and is discharged to the outside by air discharge grille 7.
Enter into the air on electricity storage chamber 2 ' top for cooling electricity storage chamber 2 ', by cooling fan assembly 2 " rotation cooling electricity storage chamber 2 ' in electronic unit after; enter in the conditioning chamber 2; together flow out; and move to the bottom of cavity 1, be discharged to the outside by air discharge grille 7 again by the space that forms between cavity 1 and the dividing plate 26 with the air that contains damp steam.
The part of air that enters electricity storage chamber 2 ' flows along air duct 16 by by behind the bottom fan component 18 cooling lower heaters 12, is discharged by air discharge grille 7 again.The air stream that is produced by exhaust motor assembly 10 is in order to cool off heater, to reduce the air themperature of discharging through air discharge grille 7.
But the micro-wave oven of conventional art design has following problem:
In traditional micro-wave oven, need to use a plurality of fan components 2 in order to form air stream in inside ", 10,18,25.A plurality of fan components 2 when micro-wave oven is worked ", 10,18,25 drive simultaneously, produce very big noise.And, owing to adopt a plurality of fan components 2 ", 10,18,25, improved the manufacturing cost of micro-wave oven.
Summary of the invention
Technical problem to be solved by this invention provides the usage quantity that reduces fan component and air duct, can reduce the micro-wave oven air flow system of noise and manufacturing cost.
In order to solve the problems of the technologies described above, micro-wave oven air flow system of the present invention is characterized in that having and comprises extraneous air and enter the suction unit of micro-wave oven inside and the front grid that the air after the micro-wave oven inner loop outputs to outside exhaust portion; Have by suction unit suction air outside at the inner air flow generating apparatus that forms air stream of micro-wave oven in cavity one side, the air flow generating apparatus is arranged on the end of a side above the cavity, suck air from the below of cavity, make it on cavity, form the air stream of cooling-part towards end side; The air that is produced by the air flow generating apparatus flows in cooling settings in the cavity process of flowing behind the parts of cavity outside, a part forms the air stream of cooling-part by exhaust portion output, and another part flows to inside cavity, the circulation back forms air stream in the cavity by exhaust portion output.
Described front grid is arranged on the below of cavity, is divided into suction unit and exhaust portion by being arranged on inner separating plate.
The air stream of described cooling-part is divided into the cooling heater air stream that cools off upper portion heater and the cooling electronic components air of cooling electronic components flows.
The other excessively air duct of cavity inner air flow guides to exhaust portion.
In order not make the air miscarriage give birth to the adverse current phenomenon, on a side of air flow generating apparatus, be provided with the dividing plate that possesses through hole.
Append on the shell back side close and be provided with the back air entry that sucks extraneous air with the air flow generating apparatus.
The invention has the beneficial effects as follows: traditional a plurality of fan components are become single air flow generating apparatus form air stream, reduced noise, component count, reduced manufacturing cost.Utilize the back suction inlet that forms on the backplate to suck air, enlarged the air suction passage, can cool off heat generating components more up hill and dale, improve the performance of micro-wave oven.Owing to form air entry and exhaust outlet in front on the grid, reduced by a grid relatively, thereby reduced manufacturing expense.
Description of drawings
Fig. 1 is the bottom isometric view that the built-in microwave oven of conventional art design is wanted portion's structure.
Fig. 2 is the mobile sectional drawing of inner air of the built-in microwave oven of conventional art design.
Fig. 3 is that the micro-wave oven of the embodiment of the invention is wanted portion's structure and the mobile front elevation of air.
Fig. 4 is the parts that are arranged on cavity top of the embodiment of the invention and the top plane view that air flows.
Fig. 5 is the mobile side view of the cavity side air in the embodiment of the invention.
Among the figure, 1: cavity; 2: conditioning chamber; 2 ': electricity storage chamber; 2 ": cooling fan assembly; 3: fire door; 5: suction grille; 7: air discharge grille; 8: control panel; 10: the exhaust motor assembly; 12: lower heater; 14: cover of heater; 16: air duct; 18: the bottom fan component; 20: upper portion heater; 22: cover of heater; 24: air duct; 25: the top fan component; 26: dividing plate; 28: shell; 40: cavity; 41: conditioning chamber; 42: the cavity end face; 50: the air flow generating apparatus; 51: delivery outlet; 60: dividing plate; 61: the 1 through holes; 62: the 2 through holes; 70: backplate; 71: the back suction inlet; 80: upper portion heater; 85: high-tension transformer; 86: high-voltage capacitance; 87: magnetron 88: waveguide; 90: air duct; 100: front grid; 101: suction unit; 102: exhaust portion; 110: separating plate; 120: air duct; 130: lower heater; 132: rotary tray motor.
The specific embodiment
Be described in further detail below in conjunction with the air flow system of the drawings and specific embodiments micro-wave oven of the present invention:
Shown in Fig. 3,4, formed the conditioning chamber 41 of conditioning food in microwave oven cavity 40 inside.Be provided with air flow generating apparatus 50 in cavity end face 42 left sides, the air flow generating apparatus can be the drawing fan assembly, and its effect is to suck air from the outside at the inner air stream that forms of micro-wave oven.Air flow generating apparatus 50 is made up of a motor and both sides agitation fan.From of delivery outlet 51 outputs of two ends inhaled air through the air flow generating apparatus.Be provided with the tabular dividing plate 60 that comprises the 1st through hole 61 and the 2nd through hole 62 with air flow generating apparatus delivery outlet 51 corresponding positions, dividing plate 60 closes on air flow generating apparatus delivery outlet 51 and is provided with.Dividing plate 60 is between the backplate 70 and front panel of cavity end face 42, flows to the fan component 50 from the air another mistake of air flow generating apparatus 50 output preventing.
Be provided with back suction inlet 71 with air flow generating apparatus 50 corresponding backplates 70, back suction inlet 71 is passages that extraneous air flows into suction fan assembly 50.In order to increase the air capacity that enters air flow generating apparatus 50, can increase a side that is arranged on the micro-wave oven outside.
As shown in Figure 4, the upper portion heater 80 to cavity 40 internal delivery radiations heat energies has been installed on the 1st through hole 61 right sides of dividing plate 60,, be provided with the motherboard (not shown) on the top of upper portion heater 80 at a distance of certain distance.Upper portion heater 80 is combined by generate heat lower halogen heater and ceramic heater.And this only is confined to this embodiment, also can adopt other heater.Be provided with high-tension transformer 85 and high-voltage capacitance 86 and magnetron 87 on the 2nd through hole 62 right sides.For the microwave that magnetron 87 is produced guides in the cavity 40, on magnetron 87 and cavity 40 sides, be provided with and be connected waveguide 88.Waveguide 88 1 sides are connected the air duct 90 that links to each other with magnetron 87, and opposite side links to each other with cavity 40 sides, and the guiding high temperature air enters cavity 40 inside in cooling magnetron 87.
Being in the position of the electronic unit and the upper portion heater 80 of cavity end face 42, is the structure in one embodiment of the present of invention, and therefore the position of each electronic unit can change in air flow range of the present invention.
Form front grid 100 in the micro-wave oven lower front face, and 100 be provided with separating plate 110 from backplate 70 to front grid on the another side of grid 100 in front.Separating plate 110 is rectangular tabular, prevents that the air stream that sucks and discharge by front grid 100 from mixing mutually.
As shown in Figure 3, front grid 100 is that benchmark is divided into the suction unit 101 in left side and the exhaust portion 102 on right side with separating plate 110.One side links to each other with exhaust portion 102, and the air duct that opposite side links to each other with cavity 40 sides constitutes the passage of output cavity 40 inner airs.
As shown in Figure 5, the lower heater 130 to the internal delivery heat of conditioning chamber 41 has been installed on cavity 40 bottom surfaces, has been linked to each other with lower heater 130 to have installed and rotate the rotary tray motor 132 that the plate of food is placed in conditioning chamber 41 bottoms.Lower heater 130 is can not to be made of above the ceramic heater of set point of temperature self-characteristic, and is identical with upper portion heater 80, also can use other heater.
In the embodiments of the invention of said structure, form following air stream in the micro-wave oven:
At first, behind suction unit 101 and back suction inlet 71 inhaled airs arrival air flow generating apparatus 50 two ends, export through air flow generating apparatus delivery outlet 51 by the effect of fan center of circle power.Cross the 1st through hole 61 and the 2nd through hole 62 that form on the dividing plate 60 in the circulation of air of air flow generating apparatus delivery outlet 51 formation and flow through cavity end face 42.The air stream of the 1st through hole 61 by dividing plate, main cooling settings is at the upper portion heater 80 of cavity end face with at a distance of the motherboard (not shown) of upper portion heater certain distance, and flows downward along the side of cavity 40 outsides.Air by the 2nd through hole 62 flows high-tension transformer 85 and high-voltage capacitance 86 and the magnetron 87 of main cooling settings at cavity end face 42, the portion of air with higher temperature of wherein cooling off magnetron 87 air duct 90 of flowing through flows in the cavitys 40, and remaining air stream flows downward along cavity 40 lateral surfaces.Discharge from exhaust portion 102 to cavity 40 bottom flow air streams; And behind the lower heater 130 of portion of air stream cooling cavity 40 bottoms, discharge by exhaust portion 102.
Simultaneously, the damp steam that conditioning chamber 41 in, produces in the high temperature air stream that flow into conditioning chamber 41 and the micro-wave oven course of work, the air duct 120 that forms by cavity 40 1 sides together is by exhaust portion 102 discharges.
The micro-wave oven that possesses in the embodiment of the invention of above-mentioned air stream only depends on an air flow generating apparatus 50, forms the damp steam that air stream cools off and remove cavity 40 inside.This structure is to have reduced the cooling fan assembly number on the basis of traditional structure, thereby reduces the noise that produces when cooling fan assembly rotates.And, owing to reduced cooling fan assembly and air duct and the bolt that is installed in each heating system, can shorten the set-up time, reduce manufacturing cost.With air flow generating apparatus 50 corresponding backplates 70 on form suction inlet 71, can suck tempering air more fully, the heat generating components of cooled interior up hill and dale, thereby can improve the performance of micro-wave oven.
, utilize separating plate 110 that front grid 100 is divided into suction unit 101 and exhaust portion 102 in the present invention, thereby reduced by a grid relatively as the structure of air-breathing and exhaust passage with respect to traditional formation suction grille and air discharge grille, reduced manufacturing cost.
Claims (6)
1, a kind of micro-wave oven air flow system is characterized in that having the front grid (100) that the suction unit (101) that comprises extraneous air and enter micro-wave oven inside and the air after the micro-wave oven inner loop output to outside exhaust portion (102); Have by suction unit (101) suction air outside at the inner air flow generating apparatus (50) that forms air stream of micro-wave oven in cavity one side, air flow generating apparatus (50) is arranged on the end of a side above the cavity (40), suck air from the below of cavity (40), make it on cavity, form the air stream of cooling-part towards end side; The air that is produced by air flow generating apparatus (50) flows in cooling settings in cavity (40) process of flowing behind the parts of cavity outside, a part is by exhaust portion (102) output, form the air stream of cooling-part, another part flows to cavity (40) inside, the circulation back forms the interior air stream of cavity (40) by exhaust portion (102) output.
2, micro-wave oven air flow system according to claim 1 is characterized in that described front grid (100) is arranged on the below of cavity (40), is divided into suction unit (101) and exhaust portion (102) by being arranged on inner separating plate (110).
3, micro-wave oven air flow system according to claim 1 is characterized in that the air stream of cooling-part is divided into the cooling heater air stream of cooling upper portion heater (80) and the cooling electronic components air stream of cooling electronic components.
4, micro-wave oven air flow system according to claim 1 is characterized in that the other excessively air duct of cavity (40) inner air flow guides to exhaust portion (102).
5,, it is characterized in that in order not make air miscarriage give birth to the adverse current phenomenon, on a side of air flow generating apparatus (50), be provided with the possess through hole dividing plate (60) of (61,62) according to claim 1 or 3 described micro-wave oven air flow systems.
6, micro-wave oven air flow system according to claim 5 is characterized in that appending on the shell back side close with air flow generating apparatus (50) the back air entry (71) that is provided with the suction extraneous air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117517 CN1265128C (en) | 2002-04-29 | 2002-04-29 | Air flow system for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117517 CN1265128C (en) | 2002-04-29 | 2002-04-29 | Air flow system for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455179A CN1455179A (en) | 2003-11-12 |
| CN1265128C true CN1265128C (en) | 2006-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117517 Expired - Fee Related CN1265128C (en) | 2002-04-29 | 2002-04-29 | Air flow system for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265128C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100788810B1 (en) * | 2005-03-31 | 2007-12-27 | 엘지전자 주식회사 | Cooking Device |
| KR102225965B1 (en) | 2014-09-02 | 2021-03-10 | 삼성전자주식회사 | Cooking Appliance |
| EP3343113B1 (en) * | 2017-01-03 | 2019-07-31 | Samsung Electronics Co., Ltd. | Cooking appliance |
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2002
- 2002-04-29 CN CN 02117517 patent/CN1265128C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1455179A (en) | 2003-11-12 |
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Granted publication date: 20060719 Termination date: 20150429 |
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| EXPY | Termination of patent right or utility model |