CN1105438A

CN1105438A - Heating cooker

Info

Publication number: CN1105438A
Application number: CN94116277A
Authority: CN
Inventors: 今本和成; 铃木幸雄
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1993-09-22
Filing date: 1994-09-22
Publication date: 1995-07-19
Anticipated expiration: 2014-09-22
Also published as: KR0169506B1; JPH0791666A; JP3023264B2; KR950009118A; CN1057826C

Abstract

To automatically decide a first-stage cooking, a second-stage cooking in a heating cooker in which a cooking tray can be disposed at upper and lower stages. A rotary plate 14 is provided to be coupled to a weight sensor 18 in a bottom in a heating chamber 2. A lower stage cooking tray 29 is placed and set directly on a rotary plate 14 at the time of cooking via an oven. When a material to be cooked is a large quantity, an upper stage cooking tray 30 is set on the tray 29 through a leg 30a. A controller automatically decides a first stage cooking or a second stage cooking based on a detection weight of the sensor 18, calculates a weight of the material to be cooked to decides a cooking temperature T and a cooking time (t), and executes cooking by a hot air generator 3. The decision is executed by comparing the detected weight W with a criterion reference value larger than the total weight of the trays 29 and 30.

Description

Heating cooker

The present invention relates to a kind ofly can in cooking room, divide the up and down heating device of two-layer configuration cooking dishes.

A kind of like this heating device was arranged, for example be when being with the micro-wave oven that cures function that bread cake classes such as Cream roll, cake are cured conditioning, support the flat board of rotation cooked food by the support sector that is located at heating clamber left and right sides sidewall, by the two-layer configuration up and down of such branch, make the volume cooking become possibility.In the time of this, can in cooking room, only dispose one flat plate when cooked food is a small amount of and cook.

Such mode of heating of flat board that uses had following three kinds of situations in the past.At first, first kind is to only carrying out the situation of one deck conditioning with one flat plate and do not make any distinction between with the situation that two flat boards carry out the two-layer cooking, carrying out the mode of cooking with identical cook temperature, cooking time.But under this mode, this class problem is arranged, be cook temperature, cooking time set for ecological environment one deck cooking then causes underheat, cook temperature, cooking time set when the two-layer cooking be that the two-layer cooking of ecological environment then causes burnt this class of paste of cooked food to cook bad problem because of crossing heating when one deck cook.

So second mode is respectively equipped with the auto-programming list that cook temperature or cooking time have nothing in common with each other to one deck cooking and the two-layer cooking, selects to cook respectively according to the operation of user on guidance panel.In addition, Third Way is provided with to detect at cooking room and has or not dull and stereotyped optical sensor, comes automatically according to the detection of photodetector, carries out one deck cooking and the two-layer cooking respectively.

Above-mentioned second and Third Way in,, carry out suitable cooking respectively, thereby can prevent from as above-mentioned first party formula, to cook failure during in one deck cooking with the two-layer cooking.But, allow the shortcoming of second mode of user's option program list be, the formation complexity of guidance panel, and impose on the loaded down with trivial details operation of operator.In addition, the dull and stereotyped Third Way that detects with optical sensor is set the high problem of product cost is arranged.

In view of the foregoing the object of the present invention is to provide and a kind ofly can divide up and down two-layer configuration cooking dishes, can judge one deck cooking or the two-layer cooking automatically, and carry out the suitable cooking respectively, and the heating device that can realize with cheap formation.

Heating device of the present invention is characterized in that, comprises heating clamber; Heating places the heater of the cooked food in this heating clamber; Be located at the mounting table of described heating clamber inner bottom part; Releasably prop up and be held on this mounting table lower floor's cooking dishes of placement cooked food; Being positioned at the top of described lower floor cooking dishes, releasably is described mounting table support, places the upper strata cooking dishes of cooked food; Detect the weight sensor of the mounting thing weight of described mounting table support; Judge that according to the sense weight of this weight sensor one deck cooking of only using lower floor's cooking dishes also is to use the decision maker of the two-layer cooking of described lower floor cooking dishes and upper strata cooking dishes; Control the control device of described heater according to the judgement of this decision maker.

At this moment, the cooked food weight arithmetic unit of the weight computing cooked food weight of measuring according to the judgement and the weight sensor of decision maker is set, and control device is constituted can be according to the Weight control cook temperature of described cooked food weight arithmetic unit computing and at least one factor in the cooking time, formation is effective like this.And, wish structurally to make the cooked food predetermined weight of the possible mounting of described upper strata cooking dishes weight ratio lower floor cooking dishes big.The decision maker structure can be made,, judge that one deck cooking still is the two-layer cooking by detected weight of weight sensor and the determinating reference value of setting greatlyyer than the total weight of upper strata cooking dishes weight and lower floor's cooking dishes weight are made comparisons.

And, for heating device, also the structure of control device can be made according to the judgement of decision maker and select aforementioned first or second heater with first and second different heater of mode of heating.At this moment, can constitute first heater, constitute second heater by the hot blast generating apparatus by heater.

At this moment, the structure of control device is made, being judged to be one deck when cooking of decision maker, selected with the heater heating, when being judged to be the two layers of cooking, select with the heating of hot blast generating apparatus, constituent ratio is more effective like this.And, also heater structure can be made and can heat from both direction up and down.In addition, the control device structure can also be made and to carry out a kind of like this control, make that cook temperature and cooking time, both had a kind of difference at least with the first heater cooking and with the second heater cooking.

According to the heating device of claim 1 of the present invention, lower floor's cooking dishes and upper strata cooking dishes become and releasably prop up on the mounting table that is held in the weight sensor interlock.Here, when on mounting table, only supporting one deck cooking of lower floor's cooking dishes, when uploading the two-layer cooking that deposits layer cooking dishes and upper strata cooking dishes in mounting table, it is different naturally that mounting table is uploaded glove weight, thereby can judge it is one deck cooking or the two-layer cooking according to the detected weight of weight sensor by decision maker.And can be undertaken and the corresponding cooking of the cooking dishes number of plies by control device.

Thereby, the user needn't carry out the selection operation of one deck cooking or the two-layer cooking, just can judge automatically that one deck cooking still is the two-layer cooking, and other sensors such as photodetector needn't be set, and the weight tester that detection gratin weight is used is used for the detection of cooking dishes, thereby can realize purpose with simple formation.

If gratin weight arithmetic unit is set, just can deduct the weight that cooking dishes weight is calculated cooked food from the detected weight of weight sensor, add that judging is one deck cooking or the two-layer cooking, just can be according to its weight implementation cook temperature or cooking of cooking time correspondingly.

And the upper strata cooking dishes is bigger than the predetermined weight of the cooked food that can place on the lower floor cooking dishes, constitutes like this and just can effectively the upper strata cooking dishes be distinguished mutually with cooked food, thereby can carry out correct judgement.If set the determinating reference value of decision maker also bigger, judge just more realistic than the total weight of upper strata cooking dishes and lower floor's cooking dishes.

And, for situation with first and second different heater of mode of heating, select described first or second heater according to the judgement of decision maker, just can according to one deck cooking or two-layer suitable heater for cooking carries out cooking.

At this moment,, constitute second heater, just can select cooking and the cooking of using hot blast with heater by the hot blast generating apparatus if constitute first heater by heater.At this moment, if the heating of heater is just selected in one deck cooking,, like this just can carry out cooking with the mode of heating that is suitable for one deck conditioning and two-layer conditioning respectively if then select the heating of hot blast generating apparatus during the two-layer cooking.

In addition, heater structure is made can be from above-below direction cooking food, just can heat food with heater from both direction up and down.And when making the cooking of first heater and during the cooking of second heater, cook temperature or cooking time are different, just can carry out and corresponding suitable cook temperature of heater or the cooking of cooking time.

The flow chart of the control device processing sequence when Fig. 1 is the expression first embodiment of the invention baking cooking.

Fig. 2 is the vertical profile side view of heating device main frame.

Fig. 3 is the electric pie graph of expression major part.

Fig. 4 is the front elevation of guidance panel.

Fig. 5 is the figure of expression cooking dishes and cooked food weight relationships.

Fig. 6 quite represents second embodiment of the invention with Fig. 1.

The vertical profile side view of form when Fig. 7 is the cooking of expression one deck.

Fig. 8 is the vertical profile side view of form when representing two-layer the cooking.

Below just be applicable to that referring to figs. 1 through Fig. 5 first embodiment of micro-wave oven of band toasting performance illustrates the present invention.At first, as shown in Figure 2, as the micro-wave oven main frame 1 of the band toasting performance of present embodiment heating device, make the rectangular box shape on the whole, its inside is provided with and holds the heating clamber 2 that cooked food is used.This heating clamber 2 has opening in the front, can be opened, be closed by not shown door.

Be provided with hot blast generating apparatus 3 as heater at the back side of described heating clamber 2.In the case 5 of the arranged outside of the backboard 4 that constitutes above-mentioned heating clamber 2 back sides, set storage heater 6 and the centrifugal Hot-air fan 7 that constitutes above-mentioned hot blast generating apparatus.Described Hot-air fan 7 is driven by the rotating shaft 8a rotation of the fan motor 8 of being located at case 5 outsides.And, on described backboard 4, formed the suction inlet 4a and the discharge opening 4b that form by a plurality of punchings.

Thus, when above-mentioned storage heater 6 and fan motor 8 energisings, just rotation of Hot-air fan 7, the air in the heating clamber 2 that suction inlet 4a sucks is just by storage heater 6 heating.Air after the heating is delivered in the heating clamber 2 by discharge opening 4b again, and the cooked foods that the circulation by hot blast is opposite in the heating clamber 2 toast the cooking.The inner face of described case 5 is covered by heat-insulating material 9, and for cooling fan motor 8, fan blade 10 is set on rotating shaft 8a also.

And on the sidewall of heating clamber 2, be provided with and detect the temperature sensor 11 that hydrogen temperature is used in this heating clamber 2 thermistor etc. is formed.The recess of the ceiling portion of heating clamber 2 is provided with the lamp 13 of illumination heating clamber 2 inside.

Bottom in the above-mentioned heating clamber 2 is provided with the swivel plate 14 that also plays the mounting table effect.This swivel plate 14 is assemblied in the upper end that the thermal insulation board 15 that runs through heating clamber 2 bottom surfaces stretches into the driving shaft 16 of heating clamber 2 inside.And the lower end of this driving shaft 16 connects mutually with rotating disk drive motor 17, but also links with well-known weight sensor 18.With this, when using cooking in microwave oven, under the driving of rotating disc CD-ROM drive motor 17, above-mentioned swivel plate 14 rotations, releasably the rotating disc (not shown) of mounting on this swivel plate 14 also rotates.And, can detect the utensil of mounting on the swivel plate 14 and the weight of cooked food by weight sensor 18.

In addition, though not shown, next door, the right side adjacent of above-mentioned heating clamber 2 is provided with the Machine Room in main frame 1.Be provided with in this Machine Room to above-mentioned heating clamber 2 and supply with magnetron and the drive circuit thereof that microwaves carry out cooking by microwave oven, cooling fan, the control device 19(that is made up of microcomputer etc. is with reference to Fig. 3) etc.In addition, on the part in the front of main body 1, be provided with as shown in Figure 4 guidance panel 20.Be provided with the user on this guidance panel 20 and carry out that the cooking program list is selected and the indication cooking begins the dial 21 of usefulness, but also the display 23 etc. that is provided with the procedures sheet display part 22 that shows the cooking program list and is used for demonstration time and so on.

Fig. 3 is the schematic diagram of the electric formation of micro-wave oven, and input is from the signal of described dial 21, weight sensor 18, temperature sensor 11 in the above-mentioned control device 19, and output drives the signal of described procedures sheet display part 22 and display 23.This control device 19 is at 24,24 above-mentioned storage heater 6 and fan motors 8 that are connected in parallel by the control of relay switch 25 break-makes of power line.

Insert on the said power 24 because of the switching of above-mentioned door move main door switch 26.And control device 19 inputs divide the signal of door switch 27.The power supply of control device 19 is provided by means of power transformer 28 by said

power

24,24 in addition.

Lower floor's cooking dishes 29 and upper strata cooking dishes 30 releasably can be propped up in baking when cooking of carrying out cake, cake, sugar cream etc. and to be held on the above-mentioned swivel plate 14, use to substitute above-mentioned rotating disc.As shown in Figure 2, above-mentioned lower floor cooking dishes 29 is directly placed and is set on the

swivel plate

14, and 30 of upper strata cooking disheses are supported to place on the above-mentioned lower floor cooking dishes 29 by pin 30a.At this moment, only can carry out one deck cooking with lower floor's cooking dishes under the few situation of cooked food amount, and in the cooked food amount for a long time, both carry out the two-layer cooking then can to adopt lower floor's cooking dishes 29 and upper strata cooking dishes 30.

As described in the flowchart text of back, the software of 19 inner programmings of above-mentioned control device is made, when setting the cooking program list of carrying out the baking cooking by the dial 21 of aforesaid operations panel 20, judge it is one deck cooking or the two-layer cooking according to the detected weight of above-mentioned weight tester 18, calculate the weight of cooked food again, set with corresponding cook temperature of this weight and cooking time and control hot blast generating apparatus 3.

Thereby control device 19 plays decision maker, the effect of control device and cooked food arithmetic unit.In the present embodiment, as shown in Figure 5, the weight of lower floor's cooking dishes 29 and upper strata cooking dishes 30 is 600g altogether, and, but the weight of the baking cooked food of a cooking dishes mounting is that predetermined weight is set at the highest 400g.Thereby, the weight of upper strata cooking dishes 30 (600g) but make bigger than the cooked food predetermined weight (400g) of lower floor cooking dishes mounting.

The following effect that above-mentioned formation is described with reference to Fig. 1.If when now the user carried out the baking cooking of cake for example, the cooking dishes that will place cooked food (i.e. the cake that does not toast) placed in the heating clamber 2.At this moment, when cooked food is volume, adopt lower floor's

cooking dishes

29 and 30 two dishes of upper strata cooking dishes, and cooked food then only adopts lower floor's cooking dishes 29 when being a small amount of.Then, the dial 21 of operating operation panel 20 under this state is selected " cake " cooking program list again, begins the cooking.Like this, control device 19 just carries out cooking according to flow chart shown in Figure 1.

That is, at first carry out the detection of weight W by weight sensor 18 by step S1, then this sense weight W and determinating reference value are made comparisons by step S2.At this moment, the determinating reference value can be set at than total weight (1.2kg) the also big 1.3kg of lower floor cooking dishes 29 with upper strata cooking dishes 30.

Here, when one deck was cooked, the weight that the weight that acts on weight sensor 18 equals lower floor's cooking dishes 29 adds the cooked food weight of 29 mountings of this lower floor's cooking dishes, and was therefore maximum up to 1.0kg.And when the two-layer cooking, the weight that acts on weight sensor 18 equals both weight of lower floor's cooking dishes 29 and upper strata cooking dishes 30 and adds the cooked food weight of both institute's mountings, thereby 1.5kg is at least also arranged.Thereby sense weight just enters step S3 less than determinating reference value 1.3, is judged to be one deck cooking, and surpasses 1.3kg, just enters step S4 and is judged to be the two-layer cooking.

And, when being judged to be one deck conditioning, standard cook temperature To being set at 155 ℃ by step S3, standard cooking time to is set at 25 minutes.And when being judged to be two-layer conditioning, then by step S4 respectively established standards cook temperature To be 160 ℃, standard cooking time to is 27 minutes, arbitrary setting value is big during all than the above-mentioned one deck cooking.

In the present embodiment, one deck is cooked and the two-layer cooking,, revised above-mentioned standard cook temperature To and standard cooking time to, determine cook temperature T and cooking time t all according to the weight of cooked food by step S5 and step S6.The calculating formula of computing this cook temperature T and cooking time t as shown in the figure, if the big words of weight (200g and 400g) of the weight ratio standard of cooked food, cook temperature T and cooking time t are increased on the basis of above-mentioned standard cook temperature To and standard cooking time to, and the words littler than standard weights then make it corresponding therewith reducing.

If determine cook temperature T and cooking time t like this, just enter step S7, carry out cooking.In this cooking, according to temperature sensor 11 detected temperature, control hot blast generating apparatus guarantees that temperature is cook temperature T in the stove, in step 8, if be judged to be through cooking time t, in case through corresponding time t, promptly stop cooking.By the processing of above-mentioned steps S1-S6, determine and the cooking dishes number of plies and the cooking corresponding best cook temperature T of weight and cooking time t, carry out cooking, thereby can obtain cooking result as well as possible.

Like this according to present embodiment, on swivel plate 14, support lower floor's cooking dishes 29 and upper strata cooking dishes 30, make it to be arranged in the heating clamber 2, thereby can be according to the weight of weight sensor 18 detections, automatically judge it is that one deck is resetted or the two-layer cooking, can carry out and the corresponding cooking of the cooking dishes number of plies.

Thereby the user needn't carry out the selection of one deck cooking or the two-layer cooking and operate as in the past by guidance panel 20, realize but can reduce the procedures sheet kind that shows on the guidance panel 20.And, also with that other sensor such as optical sensor was set was different in the past, can be to detect weight sensor 18 that cooked food weight is provided with to be used for cooking dishes and to detect originally, thereby can constitute simply with cheapness and realize.

And except that the judgement of carrying out one deck cooking or the two-layer cooking, also basis is carried out cooking with corresponding cook temperature T of cooked food weight and cooking time t, thereby can carry out the better cooking in the present embodiment.In addition, but in the present embodiment weight of upper strata cooking dishes 30 is made bigger than the cooked food predetermined weight of mounting on the lower floor cooking dishes 29, the determinating reference value is set greatlyyer with the total weight of lower floor's cooking dishes 29 than upper strata cooking dishes 30, thereby can carry out the judgement of one deck cooking or the two-layer cooking effectively.

With reference to Fig. 6 to Fig. 8 second embodiment of the invention is being described down.The part identical with above-mentioned first embodiment given same label, and omits detailed explanation, only narrates difference.

As Fig. 7 and shown in Figure 8, the upper portion heater of being made up of magnetron heater 32, the lower heater 34 that setting is made up of plane heater below heating clamber 2 base plates 33 are set in the anti-recess 31a of portion that present embodiment forms on the ceiling portion 31 of heating clamber 2.Thus, above-mentioned upper portion heater 32 and lower heater 34 constitute first heater, and the hot blast generating apparatus 3 of being located at heating clamber 2 back sides has constituted and above-mentioned upper portion heater 32 and the second different heater of lower heater 34 mode of heatings.

And, in the present embodiment, when control device 19 is carried out the baking cooking, carry out the judgement of one deck cooking or the two-layer cooking according to the detected weight W of weight sensor 18, when one deck is cooked, with above-mentioned upper portion heater 32 and lower heater 34 cookings, and when the two-layer cooking, with hot blast generating apparatus 3 cookings.Differently set cook temperature T and cooking time t during with upper portion heater 32 and lower heater 34 cookings the time with hot blast generating apparatus 3 cookings respectively.

As shown in Figure 6, when beginning the baking cooking, depend on weight sensor 18 sense weight W with step S11, by step S12 this sense weight W and determinating reference value (1.3kg) are compared, when not arriving 1.3kg, just enter step S13, be judged to be one deck cooking, then enter step S14 if surpass 1.3kg, be judged to be the two layers of cooking.And, when being judged to be one deck cooking by step S13, with regard to the mode of heating of selecting to heat up and down, and when being judged to be the two-layer cooking, then select to carry out the mode of heating that hot air circulation heats by the hot blast generating apparatus by step 14 by upper portion heater 32 and lower heater 34.

Next when one deck cooking (heating of being undertaken by upper portion heater 32 and lower heater 34), by step S15 cook temperature being set T is 170 ℃, to cook time t and be set at 25 minutes, when the two-layer cooking (heating of being undertaken by the hot blast generating apparatus), by step 1 cook temperature is set at 180 ℃, cooking time t is set at 30 minutes.Thus, set best cook temperature T and cooking time t respectively, just can prevent the burnt paste of cooked food during than the strong heater cooking of hot blast in the duration and degree of heating with the difference of mode of heating.By keeping in the stove temperature to carry out cooking, judge the process of cooking time t in step 18, in step 17 in case just finish cooking through setting-up time t for cook temperature T.

During by two direction heater cookings up and down, it is sallow just can to have fragrant barbecue on cooked food, if but also adopt it in the two-layer cooking, will make the cooked food of a following side of the top side of lower floor's cooking dishes 29 and upper strata cooking dishes 30 can not get abundant heating, it is uneven to produce baking.Then when one deck cooking and the two-layer cooking, change mode of heating in the present embodiment, when the two layers of cooking, cook, with even baking cooked food by circulating air.

In the various embodiments described above, make when one deck is cooked and during the two-layer cooking cook temperature T and cooking time t neither with, make one of them difference but also can control.And, do not have among above-mentioned second embodiment with cooked food Weight control cook temperature or cooking time, but the control that increases cooked food weight is good, on the contrary, even without cooked food Weight control cook temperature or cooking time (step S5 and step S6), also can reach desired purpose among above-mentioned first embodiment.

In addition, the present invention is not limited by the various embodiments described above, can suitably change in the scope that does not break away from essence and be implemented.

Can understand by above explanation, can divide two-layer configuration cooking dishes up and down according to heating device of the present invention, releasably lower floor's cooking dishes and upper strata cooking dishes are propped up on the mounting table that is held in the weight sensor interlock and constitute, and the decision maker of judging one deck cooking or the two-layer cooking according to the detected weight of weight sensor is set, thereby has an excellent effect, can judge one deck cooking or the two-layer cooking effectively automatically, carry out the suitable cooking respectively, and can constitute with cheapness and realize.

Claims

1, a kind of heating device is characterized in that comprising:

Heating clamber;

Heating places the heater of the cooked food in this heating clamber;

Be located at the mounting table of described heating clamber inner bottom part;

Releasably prop up and be held on this mounting table lower floor's cooking dishes of placement cooked food;

Be positioned at described lower floor cooking dishes top, releasably prop up and be held in described mounting table, place the upper strata cooking dishes of cooked food;

Detect the weight sensor of the mounting thing weight of described mounting table support;

According to the detected weight of this weight sensor, judgement is only to use one deck of described lower floor cooking dishes cooking also to be to use the decision maker of the described lower floor cooking dishes and both the two-layer cookings of upper strata cooking dishes;

Control the control device of described heater according to the judgement of this decision maker.

2, heating device as claimed in claim 1, it is characterized in that, comprise weight according to the judgement and the weight sensor detection of decision maker, the cooked food weight arithmetic unit of computing cooked food weight, control device constitutes the weight of calculating according to described cooked food weight arithmetic unit, at least one item of control cook temperature and cooking time.

3, heating device as claimed in claim 1 or 2, but it is characterized in that the cooked food predetermined weight of mounting on the upper strata cooking dishes weight ratio lower floor cooking dishes is big.

4, heating device as claimed in claim 1, it is characterized in that decision maker constitutes, by detected weight of weight sensor and the determinating reference value of setting also greatlyyer than the total weight of upper strata cooking dishes and lower floor's cooking dishes are made comparisons, judge one deck cooking or the two-layer cooking.

5, heating device as claimed in claim 1 or 2 is characterized in that, comprises first and second heater that mode of heating is different, and control device constitutes according to the judgement of decision maker and selects described first or second heater.

6, heating device as claimed in claim 5 is characterized in that first heater is made up of heater, and second heater is made up of the hot blast generating apparatus.

7, heating device as claimed in claim 6 is characterized in that, control device constitutes when decision maker is judged to be one deck cooking, selects with the heater heating, and when for the two-layer cooking, then selects with the heating of hot blast generating apparatus.

8,, it is characterized in that heater constitutes from above-below direction cooking food as claim 6 or 7 described heating devices.

9, heating device as claimed in claim 5 is characterized in that, control device constitutes, when the first heater cooking with the second heater cooking time control make cook temperature and have at least in the cooking time one different.