CN1458451A - Air flow regulator control method for microwave oven - Google Patents
Air flow regulator control method for microwave oven Download PDFInfo
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- CN1458451A CN1458451A CN 02117773 CN02117773A CN1458451A CN 1458451 A CN1458451 A CN 1458451A CN 02117773 CN02117773 CN 02117773 CN 02117773 A CN02117773 A CN 02117773A CN 1458451 A CN1458451 A CN 1458451A
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- air damper
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Abstract
The air flow regulator controlling method for microwave oven is that after the micro switch in the air flow regulator is pushed by the air flow regulator, the motor in the air flow regulator actuates after some given time to shut down the air flow regulator completely. That is to say, the air flow regulator is stopped in some time after the micro switch is pushed. The present invention can solve the problem that air flow regulator can not be turned off completely and thus raise the heat efficiency in the cooking chamber.
Description
Technical field
The present invention relates to a kind of air flow regulator control method (method for dampercontrol of microwave oven) of micro-wave oven, or rather, relate to a kind of when the air damper action of micro-wave oven, can control the air damper motor, make the air flow regulator control method of the micro-wave oven that the said flow adjuster cuts out fully.
Background technology
In general, micro-wave oven is along with the connection of electric current produces microwave, and microwave is imported heating space is in the cooking room, by to the radiation that is heated object and the device of heat food.
Such micro-wave oven has shortened the cooking time of food greatly by the very high thermal efficiency of performance, not only can reduce food cook, thaw, the mesotrophic loss of heating process, and owing to can directly carry out radiation to the container that food is housed, therefore more convenient to use.
In the micro-wave oven that particularly develops recently because devices such as the electrothermal heater that utilizes resistance heating and fan have been installed, therefore not only possess the function of utilizing the microwave cooked food of hyperfrequency of general micro-wave oven, can also utilize electrothermal heater to carry out needing foodstuff surface to present flavous cooking function simultaneously as toast bread or roasting seafood etc.
In addition, this micro-wave oven that possesses electrothermal heater rises and maintenance high temperature in order to make the temperature in the cooking room when electrothermal heater moves, and the path of circulation of air need be closed.
On the contrary, when the hyperfrequency cooking food that utilizes magnetron to produce, the path that needs open air to circulate thinks that the cooling air forms passage, therefore air damper will be opened with the cooling effect of raising to magnetron, and the moisture that produces in the gastronomical process is discharged to the outside.
Followingly illustrated with reference to the air flow regulator control method of accompanying drawing to micro-wave oven of the prior art.
Fig. 1 is the schematic diagram of air damper opening.
As shown in the figure, air damper be constructed as follows described.That is, on the air inlet 2 that a side of cooking room forms, the said flow controller structure has been installed.Above-mentioned air inlet 2 is tetragonal openings of leaving on the sidewall 1 of electric control chamber, has formed several through holes 5a on the heat-barrier material 5 of the side that sets within it.But the structure of said flow adjuster might not be formed on the sidewall 1 of electric control chamber.So long as be formed on a side of above-mentioned cooking room, the whichever position can.And the shape of the opening of on the sidewall 1 of above-mentioned electric control chamber, leaving also not necessarily to require be quadrangle, also can be split into other a variety of shapes.
Said flow adjuster 6 is to utilize the opening portion of electric control chamber to form.Therefore the shape of said flow adjuster 6 is identical with the shape of the opening portion of above-mentioned electric control chamber, directly the above-mentioned air inlet 2 of folding.And said flow adjuster 6 is to face the mobile direction of air to be provided with.
What Fig. 1 and Fig. 2 showed is the state of air damper opening and closing.
If the user has imported cooking signal, for outflow and inflow according to above-mentioned control signal control cooking room air, said flow adjuster 6 can image patterns 1 and shown such of Fig. 2 open or close.
Fig. 3 a is the schematic diagram of the state of air damper when not closing fully, and Fig. 3 b is the schematic diagram of the state of air damper when closing fully.
As shown in the figure, in order to differentiate the operating state of said flow adjuster 6 in the process that air damper cuts out, be provided with air damper aware switch 7.If the said flow adjuster has pressed said flow adjuster aware switch in the process of cutting out, then being used for conducting power can be according to the signal of said flow adjuster aware switch 7 perception with the air damper motor that drives the said flow adjuster and out of service, thereby air damper cuts out.Cut off leaked-in air in cooking room thus, made the cooking to carry out effectively.
On the other hand, under the state that said flow adjuster 6 is opened,, can make the air stream that flows to said flow adjuster 6 directly flow to above-mentioned air inlet 2, thereby air is flowed in the cooking room more swimmingly by the guiding of said flow adjuster 6.
The action flow chart that is used for controlling air damper in the prior art is described below.
Fig. 4 is the air damper control action flow chart of micro-wave oven in the prior art.
Prerequisite is that micro-wave oven has possessed whole cooking functions.In this state, the user imports cooking signal (step 100).Whether the cooking of judging above-mentioned user input uses convection current (convection) pattern (step 110) of heater.According to above-mentioned judgement,, therefore do not drive said flow adjuster (step 120) if not the cooking that is to use microwave is then judged in the cooking of convection model.
If but the cooking function of the micro-wave oven that the user selects is a convection model, is about to begin so and uses the process (step 130) of electrothermal heater.
When micro-wave oven mainly is when utilizing microwave to heat, owing to being that microwave directly heats food, therefore concerning the heating of food itself, even what problem the temperature step-down of surrounding air does not have yet.Even therefore have cold air to enter in the cooking room, heated condition can not produce too big difference yet.
But under the situation of utilizing heater that heat food is carried out, food ambient air temperature can be heated to very high degree.Therefore under the situation that the hot gas in this cooking room can not outwards flow out, need utilize the said flow adjuster to block the inlet of air, air can not be flowed in the cooking room, thereby prevent that the interior heat of cooking room is to external leakage.
In above-mentioned steps 130, be used for blocks air to make its air damper 6 that can not flow in the cooking room drive (step 140) by the air damper motor.Under the driving of said flow adjuster motor, air damper 6 cuts out.In the process that said flow adjuster 6 cuts out, judge whether to have pressed air damper perception microswitch 7 (steps 150).Till said flow adjuster 6 was pressed air damper aware switch 7, said flow adjuster 6 was in the process of cutting out (step 160) always.
If the pass closed procedure of air damper 6 continues to carry out, and said flow adjuster 6 finally pressed air damper aware switch 7, and control device will be controlled the air damper motor so, and its power supply is cut off.
The result of above-mentioned action is exactly that the power supply of air damper motor is cut off, and the action of air damper 6 stops (step 170) at once thereupon.
In aforesaid prior art, along with stopping of air damper motor, air damper also stops action, shown in Fig. 3 a, the situation that air damper does not cut out fully can take place, and causes damage therefore can for the heat of cooking room inside.
Summary of the invention
Therefore the invention provides a kind ofly after air damper has been pressed air damper perception microswitch, still drive motors operation a period of time is so that the air flow regulator control method of the micro-wave oven that air damper can cut out fully.
The air flow regulator control method of micro-wave oven of the present invention to achieve these goals is: in the micro-wave oven of the microswitch that the opening and closing of the effect perception air damper that possesses the power that is subjected to air damper are moved, it comprises the driving stage that drives the air damper motor in order to close the said flow adjuster; The perception stage of the closing motion of air damper aware switch perception said flow adjuster; Said sensed perceived the closing motion of air damper in the stage after, control air damper motor made the control stage that stops again after its many operation a period of times.
Description of drawings
Fig. 1 is the schematic diagram of air damper opening;
Fig. 2 is the schematic diagram of air damper closed condition;
Fig. 3 a is the schematic diagram that air damper has been pressed does not have complete closing state after the air damper aware switch;
Fig. 3 b is that air damper has been pressed after the air damper aware switch schematic diagram of closing state fully;
Fig. 4 is the air damper control action flow chart of micro-wave oven in the prior art;
Fig. 5 is the pie graph that is used for controlling the air damper of micro-wave oven among the present invention;
Fig. 6 is the control action flow chart of the air damper of micro-wave oven among the present invention.The main device description of drawings
10: air damper sensing device 20: control device
30: power source drive device 40: the air damper drive unit
50: signal input apparatus
The specific embodiment
Followingly the air flow regulator control method that has adopted micro-wave oven of the present invention is described in detail with reference to accompanying drawing.
Fig. 5 is the pie graph that is used for controlling the air damper of micro-wave oven among the present invention.
The formation that is used for controlling air damper among the present invention comprises: the signal input apparatus 50 of input signal; Conduction power is to drive the air damper drive unit 40 of air damper; The air damper sensing device 10 of the closing motion of perception air damper; The control device 20 of the signal that control is perceived by said flow adjuster sensing device 10; Provide power supply so that can drive the electric supply installation 30 of air damper motor according to the control of above-mentioned control device 20.Particularly said flow adjuster sensing device 10 will comprise air damper perception microswitch 7.Above-mentioned control device 20 control air damper motors continued to move air damper has been pressed air damper perception microswitch 7 after in the time of setting, so that set apart to air damper it were closed fully.
Illustrated constituting aforesaid action control procedure below.
Fig. 6 is the action flow chart that has shown the air flow regulator control method of micro-wave oven of the present invention.
Prerequisite is that micro-wave oven has possessed whole cooking functions.In this state, the user imports cooking signal (step 200).Whether the cooking of judging above-mentioned user input uses convection current (convection) pattern (step 210) of heater.According to above-mentioned judgement,, therefore do not drive said flow adjuster (step 230) if not the cooking that is to use microwave is then judged in the cooking of convection model.
If but the cooking function of the micro-wave oven that the user selects is a convection model, is about to begin so and uses the process (step 230) of electrothermal heater.
When micro-wave oven mainly is when utilizing microwave to heat, owing to being that microwave directly heats food, therefore concerning the heating of food itself, even what problem the temperature step-down of surrounding air does not have yet.Even therefore have cold air to enter in the cooking room, heated condition can not produce too big difference yet.
But under the situation of utilizing the heater heat food, food ambient air temperature can be heated to very high degree.Therefore, under the situation that the hot gas in this cooking room can not outwards flow out, the inlet that need utilize the said flow adjuster to block air can not flow in the cooking room air, thereby prevents that the interior heat of cooking room is to external leakage.
In above-mentioned steps 230, being used for blocks air, to make its air damper 6 that can not flow in the cooking room be the step 240 that is driven by the air damper motor.Under the driving of said flow adjuster motor, air damper 6 cuts out.
In the process that said flow adjuster 6 cuts out, judge whether to have pressed air damper perception microswitch 7 (steps 250).Till said flow adjuster 6 was pressed air damper aware switch 7, said flow adjuster 6 was in the process of cutting out (step 240) always.
If in step 240, the pass closed procedure of air damper 6 continues to carry out, and said flow adjuster 6 finally pressed air damper aware switch 7, perceives the signal that switch pressed so and will be sent to control device 20.
At this moment, control device 20 control air damper motors stop after a period of time after air damper 6 is pressed air damper perception microswitch 7 again.Therefore, under the control of control device, for making in the time period that the said flow adjuster do not stop to set air damper motor continuous service (step 270).
And in step 270, when the time had surpassed the time that sets, above-mentioned control device 20 was cut off the electricity supply by control electric supply installation 30 according to above-mentioned signal.Thus, stop for driving the action that the said flow adjuster conducts the air damper motor of power at this point.
Therefore, air damper motor continuous service in the time period of having set, thus make closing like that fully shown in the said flow adjuster 6 image pattern 3b (step 280).
According to aforesaid the present invention, its basic fundamental theory is: pressed after switch that air damper aware switch 7, air damper aware switch 7 perceive the said flow adjuster presses action at air damper, the air damper motor is still perseveration in official hour.
The afore mentioned rules time is the value that has configured, if the air damper aware switch has perceived the action of air damper, so in the official hour section air damper motor still perseveration so that air damper close fully.
Though in an embodiment of the present invention the action of said flow adjuster is defined as the action that takes place in cooking room when air flows into, the action control of said flow adjuster is equally applicable to the situation that air is discharged outside cooking room.Though and be to be the explanation that example is carried out with the cooking that utilizes the convection current motor in the present invention, it is equally applicable to flash-cook etc.
Protection scope of the present invention is not limited to the embodiment of above explanation, and should make an explanation according to the scope of claims.And, in the described scope of claim, may make various deformation and handle or change obviously for those people who grasps the basic general knowledge of the field of the invention.
According to aforesaid the present invention, it has following advantages.
First, because air damper motor perseveration in the stipulated time after the air damper aware switch perceives the action of air damper, therefore air damper can cut out fully, thus the air that makes cooking room inside by air damper by complete closed.
The second, along with closing of air damper, the thermal efficiency in the cooking room significantly improves, and has improved the performance of product thus.Therefore can allow the user that product is produced and trust, bring satisfaction to the user.
Claims (1)
1, a kind of air flow regulator control method of micro-wave oven is characterized in that:
In the micro-wave oven of the microswitch that the opening and closing of the effect perception air damper that is provided with the power that is subjected to air damper are moved, comprising:
Drive the driving stage of air damper motor in order to close the said flow adjuster;
The perception stage of the closing motion of air damper aware switch perception said flow adjuster;
Said sensed perceived the closing motion of air damper in the stage after, control air damper motor made the control stage that stops again after its many operation a period of times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021177732A CN1320315C (en) | 2002-05-17 | 2002-05-17 | Air flow regulator control method for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021177732A CN1320315C (en) | 2002-05-17 | 2002-05-17 | Air flow regulator control method for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458451A true CN1458451A (en) | 2003-11-26 |
| CN1320315C CN1320315C (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021177732A Expired - Fee Related CN1320315C (en) | 2002-05-17 | 2002-05-17 | Air flow regulator control method for microwave oven |
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| CN (1) | CN1320315C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972653A (en) * | 2016-06-28 | 2016-09-28 | 广东美的厨房电器制造有限公司 | Heating and cooking apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63153326A (en) * | 1986-12-18 | 1988-06-25 | Matsushita Electric Ind Co Ltd | Heating device |
| KR0168177B1 (en) * | 1995-02-28 | 1999-01-15 | 김광호 | Temperature control method & device of microwave oven |
| JP2996920B2 (en) * | 1996-07-26 | 2000-01-11 | 株式会社東芝 | Cooking device |
-
2002
- 2002-05-17 CN CNB021177732A patent/CN1320315C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972653A (en) * | 2016-06-28 | 2016-09-28 | 广东美的厨房电器制造有限公司 | Heating and cooking apparatus |
| CN105972653B (en) * | 2016-06-28 | 2019-03-08 | 广东美的厨房电器制造有限公司 | Heat cooking apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1320315C (en) | 2007-06-06 |
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