CN1165469A - Apparatus for controlling cooking operation of microwave ovens - Google Patents
Apparatus for controlling cooking operation of microwave ovens Download PDFInfo
- Publication number
- CN1165469A CN1165469A CN97104208A CN97104208A CN1165469A CN 1165469 A CN1165469 A CN 1165469A CN 97104208 A CN97104208 A CN 97104208A CN 97104208 A CN97104208 A CN 97104208A CN 1165469 A CN1165469 A CN 1165469A
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- China
- Prior art keywords
- heater
- cooking
- locations
- food
- cooking operation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 90
- 235000013305 food Nutrition 0.000 claims description 50
- 238000004804 winding Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 10
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 235000013550 pizza Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Ovens (AREA)
Abstract
An apparatus, for controlling a microwave oven equipped with a heater pivotally mounted in the cavity to pivot between horizontal and vertical positions. The apparatus includes a heater position sensing unit for sensing the current position of the heater, a ROM for storing cooking data with associated heater positions, and a microprocessor for controlling a cooking operation, based on the sensed heater position and cooking data from the ROM. The apparatus includes an alarm unit rings when the detected heater position differs from the right operation position.
Description
The present invention relates to a kind of device that is used for controlled microwave stove cooking operation, more particularly, relate to a kind of control device that is used to be furnished with the microwave oven of heater, this heater is installed on the interior pivot of cooking room, with pivoted between horizontal and vertical position, the structure of this device makes the position of heater accurately to be provided with according to the condition of cooking food.
The microwave that existing microwave oven use magnetron sends is as heating source.But this microwave oven uses microwave as single heating source, and inconvenience is arranged.Consider such inconvenience, people have proposed a kind of heater that is equipped with as the additional heating source microwave oven, and this microwave oven can have been bought in market.This heater as additional heating source be thermaltransmission mode with radiation or convection current to being heated by cooking food, these are different with microwave heating.Utilize the advantage of these two kinds of different thermals source, just can cook suitably it according to the kind of food.Also has an advantage in addition, i.e. the heat height that produces than magnetron of the heat that produces by heater.
In general, the heater in this existing microwave oven is to be fixed on top or the rear portion of determining the space in the microwave oven case in the cooking in microwave oven process.But for some food that will cook, it is just relatively more difficult to send the fixing heat that heater produced to these foods effectively.In order to address this problem, a kind of structure is proposed, can be according to the position of being regulated microwave oven case internal heater by the kind of cooking food selectively.Referring now to Fig. 1 the example of an existing microwave oven is described.In this microwave oven, the position of heater is according to being regulated selectively by the kind of cooking food.
State shown in Fig. 1 a is near the horizontal level of top Cu that heater 10 selects to be placed on chamber 2, and is the state that heater 10 selects to be placed near the vertical position of chamber 2 rear portion Cb shown in Fig. 1 b.It is by one the structure of heater 10 around a pivot or rotating shaft 12 rotations to be realized that heater 10 this can be selected to locate between level and vertical position.Consistent with this structure, the user can be by being placed on heater 10 on the rotating shaft 12 of the top of chamber 2 Cu or rear portion Cb heater is set in required suitable position.So just can carry out cooking operation effectively.
Now the internal structure of above-mentioned microwave oven is elaborated in conjunction with Fig. 1 a.Referring to Fig. 1 a, a turntable 4 is arranged, above the food that cook just is placed on.Turntable 4 is by motor 4a driven rotary.Food F (as a fish) need keep a slight interval when cooking as shown in Figure 1a between food and heater 10.Therefore, in this case, on turntable 4, place a food bearing 8.On food bearing 8, also be equipped with a pallet 6.Be placed on the heat heating that food F is produced by heater on the pallet 6 when rotating together along with turntable 4, to cook.Here to notice that food bearing 8 and pallet 6 are to select for use according to the kind or the condition of food.
The state of Fig. 1 a is the situation that the food F that will keep flat as fish or pizza is cooked.In this state, heater 10 just remains on horizontal level, near the top Cu of chamber 2.On the other hand, Fig. 1 b then is the situation that the food F ' that will place vertically as roast chicken is cooked.In this case, heater 10 just remains on vertical position, near the rear portion Cb of chamber 2.Certainly, why heater 10 will be regulated according to the situation of food F or F ' as mentioned above, and its purpose is exactly to send food equably to for the heat with heater 10.
If the food F that keeps flat remains near vertical position F ' time of chamber rear portion Cb at heater 10 to cook, shown in Fig. 1 c, or the food F ' that places vertically cooks when heater 10 remains on the horizontal level of close chamber top Cu, shown in Fig. 1 d, then the efficiency of heating surface of heater 10 will reduce, because the heat that heater 10 sends can not be sent on food F or the F ' equably.This fails to be utilized effectively with regard to the heat supply that means heater, and just the cooking is incomplete yet for food.
It is to be noted especially, during near heater 10 remains on the rear portion Cb of chamber 2 vertical position (shown in Fig. 1 e), if off-centre is placed on the bearing 8, or have food to be placed on the pallet 6 with the pallet 6 of turntable 4 rotation, then heater 10 may bump against with the food F that keeps flat.Certainly as mentioned above, can not evenly heat food like this.In this case, will the stopping operating of pallet 6, food may partly burn.When the microwave of except that heater 10, also using magnetron (show and draw) to produce during, may produce spark, thereby cause fire cooking food.This will produce harmful effect to the stability and the reliability of microwave oven.
In above-mentioned existing structure, although the user should be set to desired correct position with heater 10 according to the kind or the condition of cooking food when the each cooking, he still may forget the position that heater is set and directly press start key and cook.In fact this situation often takes place.In the case, the cooking is to carry out according to the order that user's operation is imported, and whether heater is set to a desired correct position regardless of the user.Even the position of result's heater not with the food fit that will cook, the heating also carry out in the same old way.In this case, food just can not heat equably.And the stability of microwave oven and the problem of reliability aspect have been caused.
Therefore, one object of the present invention just provides a kind of device that is used for controlled microwave stove cooking operation, and it can be according to being cooked effectively by the condition of cooking food.
Another object of the present invention provides a kind of device that is used for controlled microwave stove cooking operation, and it can heat suitably according to the condition of institute's cooking food, has guaranteed stability and reliability thus.
This purpose of the present invention is to realize by the device of a controlled microwave stove cooking operation.This microwave oven comprises that one places the chamber, want cooking food be installed in the heater that can rotate on the interior pivot of chamber between level and vertical position, comprising: the heater locations checkout gear that is used for detecting heater locations; Be used for storing the cooking kind storing apparatus of the cooking data relevant with heater locations, the position of this heater respectively with the kind fit of institute's cooking food; And be used for according to the output signal of heater locations checkout gear and the control device of the cooking Data Control cooking operation in the cooking kind storing apparatus, this output signal is indicated detected heater locations, and these cooking data are the instruction heater desired position then.
In order to make unaccommodated situation between required cooking operation of the easier identification of user and the current heater locations, this device also comprises warning device, is used for producing when the heater locations that is detected and required heater locations are inconsistent an error signal.
The heater locations checkout gear can comprise that one can join with the cam gear that together sways with heater with heater, and a switch element, and it can produce an ON or OFF signal according to the turned position of cam gear.
With reference to the description of drawings the following examples, other purpose and others of the present invention are just apparent.
Fig. 1 a is a schematic diagram to 1e, the cooking operation of the heater that in microwave oven use location is variable is described respectively, wherein be the cooking operation when heater is in the normal position shown in Fig. 1 a and the 1b, and be the cooking operation when heater is placed mistake shown in Fig. 1 c and the 1d;
Fig. 2 is the block diagram of explanation according to the device that is used for controlled microwave stove cooking operation of the present invention.
Fig. 3 a is two different instances that illustrate respectively according to heater locations detecting unit in Fig. 2 device of the present invention to 3c.Wherein, be the condition of heater locations detecting unit when heater is positioned at level and vertical position shown in Fig. 3 a and the 3b, and be a cam gear shown in Fig. 3 c, its with Fig. 3 a and 3b in different; And
Fig. 4 is that an explanation is according to the flow chart in the control operation of device shown in Fig. 2 of the present invention.
With reference to figure 2, to doing an explanation according to the basic structure of the device that is used for controlled microwave stove cooking operation of the present invention.
As shown in Figure 2, this control device comprises a keyboard input unit 24, is used for importing the relevant data of wanting the cooking food kind, and relevant with the various operating conditions of microwave oven respectively message from keyboard.This control device also comprises a position detection unit 26, is used for detecting the current location of heater 10 in the microwave oven; One microprocessor 20 is used for coming according to the output signal of the current location position detection unit 26 of message from keyboard of receiving from keyboard input unit 24 and instruction heater 10 cooking operation of controlled microwave stove; And a display unit 28, be used for showing cooking operation process by microprocessor 20 controls.An alarm unit 30 also is provided, has been used for producing the warning of misrepresenting deliberately the police and notifying the cooking to finish.This control device also comprises a load drive unit 32, is used for according to the various loads in the control signal driving microwave oven of microprocessor 20 outputs.
Keyboard input unit 24 has can be by the structure of user's operation, and the user can import the data of relevant cooking food kind and the order of cooking beginning like this.Position detection unit 26 is determined the current desired location of heater.That is to say that position detection unit 26 determines that heaters are to be in chamber internal upper part Cu (near the horizontal level of Fig. 1 a) still is in the near (vertical position of Fig. 1 a) of rear portion Cb in the chamber.The result that position detection unit 26 will be determined mails to microprocessor 20.
Microprocessor 20 comprises a ROM 20a, and its stores the data that relevant with heater locations respectively optimum cooking conditions is arranged, and also comprises a tick lables 20b, and it can be according to the current location of the output signal instruction heater 20 of position detection unit 26.ROM 20a stores the position data of having heaters, therefrom can obtain respectively and the corresponding optimum heating condition of the various foods of being cooked.For example, ROM 20a stores has when by cooking food being (as fish or the skin Sa cake) that keeps flat instruction heater should place near the information of the horizontal level the Cu of chamber top, and also storage has when being (as the roast chicken) placed vertically by cooking food instruction heater should place near the information of the vertical position the Cb of rear portion in the chamber.This information be by will be in microwave oven the kind of cooking food and the heater desired position relevant respectively with these food species be stored among the ROM and obtain.This ROM also stores relevant for considering that heater locations just can cook the data of proper food species.
Tick lables 20b indication is by the current location of position detection unit 26 detected heaters.Microprocessor 20 is according to being stored in the desired location of determining heater among the ROM 20a about the output (indicating current heater locations) of wanting cooking food kinds of information and tick lables 20b, and this desired location is corresponding with selected cooking conditions.Microprocessor 20 outputs one signal is indicated determined heater locations then.
Be suitable for detecting now the structure of the position detection unit 26 of heater 10 current locations in conjunction with Fig. 3 explanation.As shown in Figure 3, position detection unit 26 comprises a cam part 40, is fixed on the rotation axis 12, and this rotation axis is used to make heater 10 to rotate around it.Cam part 40 is along with axle 12 rotates together.Position detection unit 26 also comprises a microswitch 42 that turns on and off according to the rotation of cam part 40.It shown in Fig. 3 a the state that heater 10 is set near the horizontal level of chamber internal upper part Cu.Under this state, cam part 40 separates with the transmission mechanism 42a of microswitch 42.Therefore, microswitch 42 is in shutoff (OFF) state.Under shutoff (OFF) state of microswitch 42, tick lables 20b identifies heater 10 and is set to be positioned at horizontal level.
It shown in Fig. 3 b the state that heater 10 is arranged near the vertical position the Cb of rear portion in the chamber.Under this state, the transmission mechanism 42a of microswitch 42 is compressed into the cam part 40 that heater rotates by the state from Fig. 3 a.Therefore, microswitch 42 is in (ON) state of opening.When microswitch 42 was in the ON state, tick lables 20b identified heater 10 and is set to perpendicular seated position.
Under illustrated situation, cam part 40 is very round, and eccentric being installed on the rotation axis 12 of heater 10.In this structure, cam part 40 is along with cam action is carried out in the rotation of rotation axis 12.The shape of the position of microswitch 42 and cam part 40 is not limited in situation illustrated in fig. 3, and the various schemes that are operatively connected that can implement relevant therewith microswitch and heater are to produce corresponding to different heating device position unlike signal.
Fig. 3 c illustrates an amended like this embodiment, adopted to have the cam part 40 different with Fig. 3 a cam component shape '.Shown in Fig. 3 c, in this embodiment, different among microswitch 42 and Fig. 3 a.That is to say that microswitch 42 is opened or turn-offed according to the rotation situation of heater 10, thereby tick lables can be opened (ON) or turn-off the current position of (OFF) signal identification heater 10 according to what microswitch 42 sent.
In the above-described embodiments, the structure of position detection unit 26 is that mechanical structure with single microswitch is foundation.But the structure of position detection unit 26 is not limited to this mechanical structure.For example, the position of heater can be with detecting such as the such optical device of fluorescence detector.Also can reach identical purpose with electronic installation.
Microprocessor 20 with the current heater locations of position detection unit 26 indication output signal compare with the message from keyboard of keyboard input unit 24, whether definite thus these signals mate.When determining Signal Matching, signal of microprocessor 20 outputs is to carry out cooking operation.According to the output signal of microprocessor 20, load driving circuits 32 provides electric current to driver part such as heater and magnetron etc., makes microwave oven work thus.At this moment, display unit 28 shows the condition of ongoing cooking operation.
When microprocessor 20 determines that signal that the heater locations discerned by tick lables 20b and keyboard input unit 24 are keyed in does not match, just do not produce the signal of execution cooking operation and export an error signal, inform mistake has taken place.For responding this error signal, display unit 28 and/or alarm unit 30 show error situation or produce once reports to the police.Report to the police according to this, the user knows the choice of location mistake of heater.In the case, the user is provided with the current location of heater once more, so that carry out correct cooking operation.
The working condition of the device of controlled microwave stove cooking operation according to the present invention is described in conjunction with Fig. 4 now.
According to the present invention,, therefore a tick lables is set when cooking operation during initialization, just detects the current location (step 110) of heater in the operations according to the instant invention pattern.When the user was provided with heater and is horizontal level, microprocessor 20 was provided with a tick lables, and indicating current heater is horizontal level (step 112a).On the other hand, be vertical position if the user has been provided with heater, then microprocessor 20 is provided with and the corresponding tick lables of vertical position (step 112b).
After this, user's operation keyboard input unit 10 input one keyboard signal, the required cooking function of this signal and cooking food is relevant.According to the signal of keying in, the required cooking function (step 114) of microprocessor 20 identifications.
Microprocessor 20 is also determined the position of heater corresponding to required cooking function according to the signal of keying in.That is to say microprocessor 20 at first determines whether should carry out cooking operation (step 116) under heater is positioned at the condition of vertical position by message from keyboard in step 114.
When determining should carry out cooking operation in step 116 under heater is positioned at the condition of vertical position, it is corresponding that microprocessor 20 determines whether the signs of the current heater locations of indication have been made as the heater locations that needs with set cooking operation.In other words, microprocessor 20 determines whether heater is positioned at vertical position (step 120).
When determining that heater is positioned at vertical position in step 120, microprocessor 20 is known heater current location and set cooking operation fit.Then, microprocessor 20 is finished the cooking control operation among Fig. 4, and control load driver element 32 is carried out set cooking operation then.
When determining that in step 116 cooking operation does not need heater to be positioned under the situation of vertical position condition, microprocessor 20 just determines whether and should carry out cooking operation (step 118) under heater is positioned at the condition of horizontal level.
When determining that in step 118 cooking operation should carry out cooking operation under the condition of heater horizontal positioned, microprocessor 20 is determined whether horizontal positioned (step 122) of heaters.
When determining that heater is horizontal positioned in step 122, microprocessor 20 is known the position and the set cooking operation fit of current heater.Then, microprocessor 20 is finished the cooking control operation of Fig. 4, and control load driver element 32 is carried out set cooking operation then.Begin the operation of cooking thus with heater.
When the heater locations of in step 120 or 122, determining current heater locations and set cooking operation needs not at once, microprocessor 20 usefulness heater mistake occupation modes are controlled in heater, finish its control operation (step 124) then.In heater mistake occupation mode, alarm unit 30 produces a warning, informs wrong situation.Otherwise display unit 28 can show error situation.Thus the user can to know that heater locations is provided with wrong.In the case, the user can be provided with heater and be positioned at desired location, and then keys in a signal to carry out required cooking operation.
Apparent from top explanation, the present invention has multiple effect.
That is to say, controlling the operation of microwave oven in such a way according to control device of the present invention, promptly only be in when matching the desired position with the kind of wanting cooking food when the heater of microwave oven, cooking operation just can carry out.Therefore, the condition according to institute's cooking food can realize accurately and effectively operating.Utilize this advantage, can realize cooking the improvement of precision and efficient aspect.Improved the reliability of microwave oven thus.
Because cooking operation only just can carry out,, guaranteed the stability of microwave oven thus with regard to not having such as cause the incomplete problem of the cooking by heater locations inaccuracy or microwave oven fluctuation of service when accurately being cooperated by the food cooked and heater.
Although disclose the preferred embodiments of the present invention for illustrative purposes, those those skilled in the art can do various changes, increase and replacement to it under the prerequisite of the spirit and scope that do not break away from claim disclosed in this invention.
Claims (3)
1. one kind is used for the device of controlled microwave stove cooking operation, comprises a chamber that can hold cooking food, and one be installed in the chamber heater that can rotate at level and vertical position spaced winding axle, it is characterized in that comprising:
The heater locations checkout gear is used for detecting the position of heater;
Cooking kind storage facility is used for storing the cooking data relevant with heater locations, these heater locations respectively with the kind fit of wanting cooking food; And
The cooking operation control device is used for the signal of the heater locations that indication detects sent according to the heater locations checkout gear and the signal of the required heater locations of indication that cooking kind storing apparatus sends to control cooking operation.
2. according to the device of claim 1, it is characterized in that also comprising:
Warning device is used for producing error signal when detected heater locations and required heater locations are inconsistent.
3. according to the device of claim 1 or 2, it is characterized in that described heater locations checkout gear comprises
One cam gear, it connects to sway with heater with heater; And
One switch element, it can produce one according to the turned position of cam gear and open (ON) or turn-off (OFF) signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960012278A KR0181659B1 (en) | 1996-04-22 | 1996-04-22 | Control apparatus depending on the position of heater of microwave oven |
| KRS/N12278/96 | 1996-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1165469A true CN1165469A (en) | 1997-11-19 |
| CN1125579C CN1125579C (en) | 2003-10-22 |
Family
ID=19456362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97104208A Expired - Fee Related CN1125579C (en) | 1996-04-22 | 1997-04-21 | Apparatus for controlling cooking operation of microwave ovens |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR0181659B1 (en) |
| CN (1) | CN1125579C (en) |
| BR (1) | BR9701919A (en) |
| GB (1) | GB2312531B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1635616B1 (en) * | 2004-09-13 | 2007-12-05 | LG Electronics Inc. | Microwave oven comprising a pivotable radiant heater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1200289A (en) * | 1981-07-28 | 1986-02-04 | Takeshi Tanabe | Grill oven range |
| JPH0126973Y2 (en) * | 1984-10-05 | 1989-08-11 | ||
| KR0139278Y1 (en) * | 1994-05-12 | 1999-03-20 | 김광호 | Position control device of heater for microwave oven |
-
1996
- 1996-04-22 KR KR1019960012278A patent/KR0181659B1/en not_active IP Right Cessation
-
1997
- 1997-04-15 GB GB9707580A patent/GB2312531B/en not_active Expired - Fee Related
- 1997-04-21 CN CN97104208A patent/CN1125579C/en not_active Expired - Fee Related
- 1997-04-22 BR BR9701919A patent/BR9701919A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125579C (en) | 2003-10-22 |
| GB9707580D0 (en) | 1997-06-04 |
| KR970069967A (en) | 1997-11-07 |
| KR0181659B1 (en) | 1999-03-20 |
| GB2312531B (en) | 1998-06-10 |
| BR9701919A (en) | 1998-11-10 |
| GB2312531A (en) | 1997-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031022 |