CN101156660A - Heating cooking machine and cooking method of adding vitamin C - Google Patents

Abstract

The proposal of the invention is to provide a heating cookware which increases the vitamin C content of cooked foods. The invention comprises a heating chamber 5 which is arranged inside an outer case and is opened to contain the cooked foods, and a steam generator 40 which supplies steams from the side of the heating chamber 5, wherein, the steam generator 40 supplies steams to the heating chamber, so that the inside of the heating chamber can be remained with a particular steam temperature mood, thereby increasing the vitamin C content of cooked foods.

Description

Heating device and the ascorbic cooking method of increase

Technical field

The present invention relates to have the heating device of steam feedway and increase ascorbic cooking method.

Background technology

For a long time, the Nutritive Value that improves food material is just being carried out always.

For example, increase the ascorbic method in the potato class, this method be the potato class is contained in that mean temperature is cooled in 7 ℃ to-1 ℃ the bunker apace, the amount that makes ascorbic acid surpasses the storage initial value and preserve 15 days to 35 days, the circulation listing makes the method that the vitamin C of processing increases then, and is disclosed as opening the spy in the 2001-275606 communique (patent documentation 1).

In addition, heating device in the past is by supplying with steam to heating cabinet, can not destroy the cooking device for cooking of the nutritional labeling in the gratin, for example opening in the 2006-38315 communique (patent documentation 2) disclosed the spy.

In addition, for example open flat 9-4849 communique (patent documentation 3) and the spy opens in the flat 7-293889 communique (patent documentation 4), disclose water is injected steam chest from feed pump, form the structure of steam by the water in the heating steam case the spy.These steam chests have the ejiction opening at the cooking room inner opening, thereby the steam that forms in steam chest supplies in the cooking room with certain steam pressure by ejiction opening.Be in the following temperature range of boiling point in these cooking device control cooking rooms, and utilize the Steam Heating of the following temperature of boiling point to be placed on the interior gratin of cooking room.

Yet, in the ascorbic method of increase, need provide expensive bunker, so that the mean temperature of gratin is as cold as 7 ℃ to-1 ℃ scope apace as patent documentation 1 and patent documentation 2.

A problem of Cun Zaiing is in addition, and the ascorbic increase that obtain to expect needs 15 days to 35 days longer shelf time.

In addition, in the structure of patent documentation 3 and patent documentation 4, insufficient with the vegetables heating that the steam of the following temperature of boiling point is cooked, therefore edible warm vegetables are inappropriate.Therefore, edible with regard to the vegetables of cooking with the steam that uses the following temperature of boiling point as warm vegetables, the user must heat vegetables with new cooking conditions once more according to the new cooking conditions of situation input of operating operation key, and it is cumbersome to operate.

Summary of the invention

Purpose of the present invention is exactly in order to address the above problem, and ascorbic cooking method of a kind of easy increase and heating device are provided.

To achieve these goals, the object of the present invention is to provide a kind of heating device, it comprises the heating clamber that holds gratin, supplies with the steam feedway of steam and the control device of controlling this steam feedway to this heating clamber, wherein this control device is controlled described steam feedway, is in the ascorbic set point of temperature band below 100 ℃ that increases gratin with a part of keeping gratin.

In addition, the object of the present invention is to provide a kind of cooking method, comprising the heating clamber that holds gratin and supplying with in the cooking device of steam feedway of steam to this heating clamber, by official hour in the steam atmosphere that gratin is placed on the set point of temperature band below 100 ℃, increase the vitamin C of gratin.

In addition, the object of the present invention is to provide a kind of heating device, it can be fit under the state that eats as warm vegetables with the vegetables of using the temperature steam cooking below the boiling point, does not import new cooking conditions and heats.

According to one embodiment of present invention, gratin is placed in the steam atmosphere of the set point of temperature band below 100 ℃, by under this environment to the gratin stress application, increased the vitamin C in the gratin.

In addition, according to another embodiment of the invention, in heating clamber, supply with steam, in heating cabinet, form the steam atmosphere of the set point of temperature band below 100 ℃, by under this environment to the gratin stress application, increased the vitamin C in the gratin.

In addition, according to still another embodiment of the invention, it can be fit to so that under the state that the vegetables of cooking with the steam of the temperature below the water boiling point eat as warm vegetables, does not import new cooking conditions and heats.

Description of drawings

Fig. 1 is applicable to that the door of micro-wave oven of the present invention is in the front view of closed condition.

The door that Fig. 2 shows micro-wave oven is in the front view of open mode.

Fig. 3 is the front view that micro-wave oven vertically sections.

Fig. 4 is the plane that micro-wave oven laterally sections.

Fig. 5 is the side view that micro-wave oven vertically sections.

Fig. 6 shows the block diagram of the electrical structure of summary.

Fig. 7 is the data of the ascorbic increment rate of gratin under the different temperatures (spinach).

Fig. 8 is the data of the ascorbic increment rate of gratin under the Different Weight (spinach).

Fig. 9 shows the data of the ascorbic increment rate of gratin under the different temperatures (1 spinach).

Figure 10 shows the data of the ascorbic increment rate of gratin under the different temperatures (pimiento).

Figure 11 shows the data of the ascorbic increment rate of gratin under the different temperatures (radish).

Figure 12 is the detailed diagram of operating portion.

Figure 13 shows embodiments of the invention 2 (showing the outward appearance that door is in heating device under the closed condition).

Figure 14 shows the outward appearance that door is in the hot cooking device under the open mode.

Figure 15 shows the internal structure of the heating device under the state that is removed.

Figure 16 shows the profile of the internal structure of heating device.

Figure 17 shows the block diagram of electrical structure.

Figure 18 shows the control data of storing in control loop.

Figure 19 shows the control data of storing in control loop.

Figure 20 shows the control data of storing in control loop.

Figure 21 shows the dependency relation of ascorbic increment rate and cook temperature.

Figure 22 shows the dependency relation of ascorbic increment rate and cooking time.

Figure 23 shows the main flow chart of handling of control loop.

Figure 24 shows the flow chart of the high-temperature steam processing of control loop.

Figure 25 shows the flow chart of the Low Temperature Steam processing of control loop.

Figure 26 shows the flow chart of the Low Temperature Steam processing of control loop.

Figure 27 shows the flow chart similar to Figure 26 of embodiment 3.

Figure 28 shows the figure similar to Figure 14 of embodiment 4.

Figure 29 is the flow chart similar to 26.

Symbol description

First embodiment:

The 1-main body, 2-outer container, 3-support portion, case in the 4-, 5-heating clamber, 5a-left side wall, the 5b-right side wall, 5c-rear wall, 5d-front openings portion, the 6-door, 7-handle portion, 8-guidance panel, the 8a-vitamin C increases key, 9-operating portion, 10-display part, the 11-door interlock switch, 12-right side clearance space, 13-left side clearance space, 14-underside gap space, 15-Machine Room, 16-magnetron, 17 drive units, 18-waveguide pipe, 19-temperature sensor, the 30-stage portion, the 30a-portion of topping bar, the 30b-portion of getting out of a predicament or an embarrassing situation, the square pallet of 31-, the 31a-square pallet of topping bar, the 31b-square pallet of getting out of a predicament or an embarrassing situation, the 40-steam raising plant, 41-steam generation container, 41a-steam generating chamber, 44-steam heater, 47-admission port, 48-thermistor, 49-steam blow-off outlet, 52-housing, 53-steam port, the 54-water tank, 55-conduit, 56-feed pump, 60-hot air circulation mechanism, 61-Hot-air fan, 62-storage heater, 63-the 1st storage heater, 64-the 2nd storage heater, 65-shell (casing), the 66-fan electromotor, 67-suction inlet, 68-blow-off outlet, 70-outlet opening portion, 71-steam output mechanism, 72-exhaust screen, 80-control device, the 80a-memory, the 81-power supply

2-4 embodiment:

The 103-cooking room, the 104-door, 111-fan electromotor (drive source), 114-external heater (heater), the 116-magnetron, 121-steam chest (steam generating unit), the last steam heater of 122-(heating source), 127-dial (operated key), 131-begins switch (operated key), the 133-display, and the 134-control loop (comprises cooking menu selecting apparatus, cooking controller, tape deck), 144-siren (device for informing), the 145-internal temperature sensor, 147-vapor (steam) temperature sensor (generating unit temperature sensor), 150-CPU, 151-ROM, 152-RAM.

The specific embodiment

Below, use the description of drawings embodiments of the invention.

(embodiment 1)

Referring to figs. 1 through Fig. 8 heating device of the present invention is described, above-mentioned accompanying drawing shows an embodiment who is applicable to micro-wave oven.

Fig. 1 is the front view that the door of micro-wave oven is in closed condition.Fig. 2 shows the front view that door is in open mode.Fig. 3 is the front view that vertically sections.Fig. 4 is the plane that laterally sections.Fig. 5 is the side view that vertically sections.Fig. 6 is an electrical structure diagram.Fig. 7 is the data of the ascorbic increment rate of gratin under the different temperatures.Fig. 8 is the data of the ascorbic increment rate of gratin under the Different Weight.

As shown in Figure 1, 2, the profile of the main body 1 of micro-wave oven forms the outer container 2 of rectangle, is provided with support portion 3 below the bottom.

The inside of outer container 2 is provided with the interior case 4 of front openings, and inside of case 4 is as heating clamber 5 in this.In addition, the 5d of front openings portion of this heating clamber 5 forms whole big rectangular shape on the full duration substantially in the front of main body 1.

The front of main body 1 is provided with the door 6 of the 5d of front openings portion that can open and close heating clamber 5.This 6 can movably pivot in the front lower of main body 1 along the vertical direction by not shown articulated section.

In addition, on door 6 front face as shown in Figure 1, top is provided with handle portion 7, and simultaneously, the bottom is provided with the guidance panel 8 that comprises a plurality of operating portions 9 and display part 10.On this guidance panel 8, because operating portion 9 can be selected cooking method of setting cooking or the like, so display part 10 can show selected cooking method and cook temperature or the like.

In addition, be provided with the door interlock switch 11 (referring to Fig. 6) of lock door 6 on door 6, this door interlock switch 11 has the locking mechanism of lock door 6, thereby the temperature in heating clamber 5 can not be opened door 6 when higher.

As Fig. 4, shown in Figure 5, be provided with the space between outer container 2 and the interior case 4, promptly the right side of interior case 4 is rightward space 12, and the left side is a leftward space 13, and bottom is a lower side space 14.

As shown in Figure 5, Machine Room 15 is formed on the rear side of heating clamber 5, and the bottom of this Machine Room 15 is provided with the drive unit 17 of magnetron 16 and this magnetron 16.

This magnetron 16 can produce microwave, and the microwave that is produced can supply to the heating clamber 5 from the peristome (not shown) by being located at the waveguide pipe 18 at following middle part in the lower side space 14, that extend to heating clamber 5.

In addition, on the top of the central part of Machine Room 15 and after the central part of left and right directions is provided with the hot air circulation mechanism 60 of narration.

Further, the top of Machine Room 15 is provided with the temperature sensor 19 (being equivalent to temperature-detecting device) of the temperature of the temperature measured in the heating clamber 5 and heating object.

On the other hand, as shown in Figure 3, forming the stage portion 30 of overshooting shape on the two side in heating clamber 5, is the 30a of portion that tops bar above, is the 30b of portion that gets out of a predicament or an embarrassing situation below.

Can carry the square pallet 31 that cooking is used on this stage portion 30, it is equipped with the top bar square pallet 31a and the square pallet 31b that gets out of a predicament or an embarrassing situation respectively.

These square pallets 31 can slippage on any stage portion 30, by making of the direction slippage of square pallet 31 to front peristome 5d, and can be from heating clamber 5 with its taking-up.

As Fig. 2, shown in Figure 3, in leftward space 13, the outside of the left side wall 5a of heating clamber 5 is equipped with the 30a of the portion of topping bar and the steam generation container 41 between the 30b of portion of getting out of a predicament or an embarrassing situation.

As shown in Figure 3, steam generation container 41 is to form the container of an opening as shown in the figure on the right side, and has the 41a of steam generating chamber that capacity is about 12ml.

This steam generation container 41 becomes as the aluminum dipping form cast for example by the metal die casting.

The steam that is made of bar-shaped sheathed heater 2 of the position up and down of the 41a of steam generating chamber of steam generation container 41 casting is with heaters 44.These two steam are outstanding from steam generation container 41 with the two end terminals of heater 44, and are connected with electric independently power supply 81 (referring to Fig. 6).

In addition, the diagram of container body 42 left side forms an admission port, and conduit 55 is installed in this admission port.

In addition, the top of the 41a of steam generating chamber is equipped with the thermistor 48 (referring to Fig. 6) of the temperature that detects steam generation container 41.

On the other hand, on the sidewall of steam generation container 41, equally spaced form horizontal 3 tubular steam blow-off outlets 49 side by side substantially, and make it outstanding from the right side.

As shown in Figure 3, on the left side wall 5a of heating clamber 5, form 3 steam openings portions 51 corresponding to steam blow-off outlet 49.In addition, cover the housing 52 of the periphery of steam openings portion 51 in the installed inside of the left side wall 5a of heating clamber 5.This housing 52 has 3 tubular steam ports 153 that are communicated with steam openings portion 51.

On the other hand, as shown in Figure 3, in the lower side space 14 of heating clamber 5, be provided with water tank 54.This water tank 54 can hold the water of about 400ml, and outer container 2 is installed and removed relatively.The water tank 54 that is installed in the outer container 2 is connected with the admission port 47 of steam generation container 41 by conduit 55.In the middle of conduit 55, connect a feed pump 56, when driving this feed pump 56, the water in the water tank 54 can be supplied among the 41a of steam generating chamber.

Steam raising plant 40 is made of steam generation container 41, water tank 54, conduit 55 and feed pump 56 or the like.

On the other hand, the rear wall side of heating clamber 5 is provided with hot air circulation mechanism 60.

As shown in Figure 5, this hot air circulation mechanism 60 is made of Hot-air fan 61, storage heater 62, shell 65 and fan electromotor 66, and wherein, Hot-air fan 61 can use centrifugal fan.

This Hot-air fan 61 is covered by shell 65, in the Machine Room 15 of these shell 65 rear sides fan electromotor 66 is installed.The rotating shaft of this fan electromotor 66 inserts in the shell 65, the center hub that Hot-air fan 61 is installed thereon, thus rotatably drive this Hot-air fan 61.

Storage heater 62 is made of 2 sheathed heaters, is centered around being provided with of Hot-air fan 61 on every side.

The storage heater 62 that is made of these two heaters is made of rated output power different the 1st storage heater 63 and the 2nd storage heater 64, the 1st storage heater 63 is connected with power supply 81 respectively independently with the 2nd storage heater 64, the rated output power of the 1st storage heater 63 is 1300W, and the rated output power of the 2nd storage heater 64 is 1000W.

At this layout, as shown in Figure 2, on the rear wall 5c of heating clamber 5, form the circulating air suction inlet 67 of a plurality of small pore-like in position, at the same circulating air blow-off outlet 68 that forms a plurality of small pore-like of the outer fix that exceeds Hot-air fan 61 peripheral parts corresponding to the central portion of Hot-air fan 61.

In addition, blow-off outlet 68 is corresponding with storage heater 62, disposes formation circlewise.

Moreover the above-mentioned square pallet 31a that tops bar clips suction inlet 67 up and down with the square pallet 31b that gets out of a predicament or an embarrassing situation, so that the suction inlet 67 of circulating air and blow-off outlet 68 are separated.

In addition, as shown in Figure 4, the right side wall 5b in the heating clamber 5 is provided with outlet opening portion 70, in the arranged outside steam exhaust-gas mechanism 71 of this right side wall 5b.

Usually, exhaust screen 72 closes outlet opening portion 70 by the additional strength of spring (not shown), and this steam output mechanism 71 can rotate by the baffle plate motor 78 that driving is rotated exhaust screen 72 and move.

Next, the electrical structure of micro-wave oven is described.

Fig. 6 shows the block diagram of electrical structure of the summary of micro-wave oven.

The control device 80 that micro-wave oven has and the operating portion 9 of described guidance panel 8, detect the temperature in the heating clamber 5 temperature sensor 19, detect the thermistor 48 of the temperature in the steam generation container 41 and be connected to the power supply 81 of micro-wave oven supply power.

Operating portion 9 can will be set the signal input control device 80 of cooking method etc., and temperature sensor 19 and thermistor 48 can be imported all temps detecting signal.

Control device 80 is connected with the display part 10 of guidance panel 8 and the drive unit 17 of magnetron 16, and is connected with feed pump 56 with heater 44 with the steam of steam raising plant 40.

And, with the fan electromotor 66 of hot air circulation mechanism 60, storage heater 62 promptly the 1st storage heater the 63, the 2nd storage heater 64 be connected.

In addition, also be connected with the door interlock switch 11 of lock door 6 and the baffle plate motor 78 of steam output mechanism 71.

Control device 80 constitutes and comprises memory 80a, be used for storing in advance the control method tabulation of heater, this tabulation is by the separately storage of mode of classification, " microwave ", " baking ", " steam ", " Low Temperature Steam " and " preference temperature " of having stored a plurality of heaters in the 1st grade are as list-item, by setting these projects, the heater that can select to programme is in advance cooked.

For example, when " microwave " in the project of selecting cooking method, can select to utilize the cooking method of magnetron heated food, i.e. " microwave cooked menu ".In addition, under the situation of " baking ", selection utilizes the cooking method of the hot blast heated food of hot air circulation mechanism generation, i.e. " baking cooking menu "; Under the situation of " steam ", select the cooking method of the high-temperature steam heated food of use steam raising plant generation, i.e. " steam cooking menu ".Under the situation of " Low Temperature Steam ", select to supply with steam and make heating clamber be in 100 ℃ of cooking methods from steam raising plant, be i.e. " Low Temperature Steam cooking menu " with the heated food that gets off.In addition, can select " preference temperature ", make it become the state of the cook temperature of setting.

Being positioned at the 1st grade the next the 2nd grade is to be made of the tabulation that is used to set as the cook temperature of heating condition, can be set to 250 ℃ from 30 ℃ with the interval of 1 degree.

In other scope of the 1st grade, also stored a plurality of cooking menus as the tabulation of cooking method, wherein, in the lower layer of " Low Temperature Steam ", stored the cooking menu of " vitamin C increase ".

Stored the gratin of green-yellow vegetables such as spinach and pimiento in the lower layer that should " vitamin C increase " and stored cooking method about it.Further in its lower layer, stored the weight of gratin and stored cooking method according to its weight.

Next, description is about the usage of the micro-wave oven of said structure.

At first, opening door 6 is contained in the unshowned gratin of accompanying drawing in the heating clamber 5, the person of being to use who describes below determines cooking method and heating condition, and from heating conditions such as the cooking method of operating portion 9 input " microwave ", " steam ", " baking ", " Low Temperature Steam " and heat time heating time, heating setpoint temperature.

When indicating the heating beginning when the beginning switch in the operating operation portion 9, according to the cooking method and the heating condition of control device 80 settings, along with predefined control program drives magnetron 16, steam raising plant 40 and hot air circulation mechanism 60 to carry out cooking.

Now, at first explanation has been set and supplied with steam on one side in heating clamber 5, Yi Bian carry out the action of cooking menu when (hereinafter being called " steam cooking menu ") of cooking.

It is used to toast the cooking of cake and cream puff cake and steamed dumpling with the dough gathered at the top and pork pies etc.

When indication " steam cooking menu " beginning, open steam heater 44.Consequently heated steam generation container 41 simultaneously.Then, the thermistor 48 in being arranged on steam generation container 41 is judged when the temperature of the 41a of steam generating chamber reaches more than 120 ℃, drives feed pump 56, begins to supply water to steam generation container 41 from water tank 54.

When utilizing feed pump 56 when steam generation container 41 is supplied with a spot of water, this water enters into the 41a of steam generating chamber, and flash evapn.

The steam that produces in the 41a of this steam generating chamber is discharged in the heating clamber 5 from the steam openings portion 51 of topping bar square pallet 31a and get out of a predicament or an embarrassing situation between the square pallet 31b by steam blow-off outlet 49.At this moment, because steam blow-off outlet 49 and steam port 153 are tubulars, so steam left wall portion of relative heating clamber 5 as the arrow S among Fig. 3 discharges along vertical substantially direction.

Then, utilize gratin and the contacted condensation heat effect of the steam cooking thing that is placed in the heating clamber 5.

Next, illustrate and set circulation supply hot blast in heating clamber 5 on one side, Yi Bian carry out the action of cooking menu when (hereinafter being called " baking cooking menu ") of cooking.

It is used for for example cookings such as baking of toast and meat.

When indication " baking cooking menu " beginning, give fan electromotor 66 and storage heater 62 energisings.

Thus, hot blast motor 66 drives Hot-air fan 61 rotatably, makes Hot-air fan 61 arrow M as shown in Figure 5 suck air in the heating clambers 5 from the suction inlet 67 of heating clamber rear wall 5c like that.

Then, Hot-air fan 61 is along the circumferential direction blown, and is heated by storage heater 62.

Air by making this heating blows out the air circulation that makes in the heating clamber 5 from the blow-off outlet 68 of heating clamber rear wall 5c, thereby improves the temperature in the heating clamber 5.

Utilize the action of this hot air circulation mechanism 60 that the gratin forced convertion is heated.At this moment, in heating clamber 5, also utilize the heat radiation of storage heater 62 to heat.

Below, illustrate to have set and utilize cooking menu action when (hereinafter be called " microwave cooked menu ") of microwave the gratin cooking in the heating clamber 5.

It is used for warm milk, the cooking of the frozen food that thaws etc.

Directly place and hold gratin in the bottom of heating clamber 5, when indication " microwave cooked menu " beginning, drive magnetron 16, microwave is by waveguide pipe 18, utilize rotable antenna (not shown) irradiating microwaves equably in the following direction heating clamber 5 of heating clamber 5, carry out cooking.

In addition here, illustrate to have set and use steam raising plant 40 and hot air circulation mechanism 60 to generate superheated steam in combination and use this superheated steam to carry out the action of cooking menu when (hereinafter being called " superheated steam menu ") of the cooking of gratin.

This superheated steam menu is used for the cooking as roasting whole chicken and heating hamburger or the like.

At first, the 30a of the portion of topping bar in heating clamber 5 and the 30b of portion that gets out of a predicament or an embarrassing situation are provided with the top bar square pallet 31a and the square pallet 31b that gets out of a predicament or an embarrassing situation respectively.

Then, in the top bar square pallet 31a and the square pallet 31b that gets out of a predicament or an embarrassing situation, place gratin.

Subsequently, utilize the operating portion 9 of guidance panel 8 to select " superheated steam cooking menu ", when receiving the indication of beginning, send instruction according to the program of control device 80.

At first, to the 1st storage heater 63 and the 2nd storage heater 64 supply capabilities of hot blast cycling mechanism 60, simultaneously, fan motor 66 to carrying out preheating in the heating clamber 5, will be heated to 100 ℃ in the heating clamber 5.

Then, make the steam of steam raising plant 40 reach 120 ℃, make the 41a of steam generating chamber become high temperature with heater 44 heatings.Then drive feed pump 56, beginning is supplied water to the 41a of steam generating chamber.At this moment, control device 80 drives feed pump 56, and for example every the 2 seconds water to the 41a of steam generating chamber supply specified volume, per 1 time confluent is controlled corresponding to the kind of " superheated steam cooking menu " with off and on.For example, when being used to toast " the superheated steam cooking menu " of cake and cream puff cake in order to set, per 1 time confluent is set at 0.5ml, and when setting " the superheated steam cooking menu " of steamed dumpling with the dough gathered at the top and pork pies etc., per 1 time confluent is set at 1.0ml.

Then, by rise to the water of 120 ℃ the less flow of steam generation container 41 supplies to temperature, this water enters into the 41a of steam generating chamber, and flash evapn, the steam that arrives steam blow-off outlet 49 is ejected into the heating clamber 5 from steam port 153 by this steam blow-off outlet 49.

The steam that riddles in the heating clamber 5 is drawn into hot air circulation mechanism 60 from the suction inlet 67 that is arranged in heating clamber 5 rear wall 5c, and in this hot air circulation mechanism 60, utilizes storage heater 62 to make steam superheating.

Then, make the temperature of superheated steam continue to rise, become the above superheated steam of saturation temperature.

Superheated steam more than this saturation temperature blows out in heating clamber 5 from the blow-off outlet 68 of heating clamber 5 rear wall 5c, and contacts whole gratin, thereby carries out the superheated steam cooking.

When the cooking time of this cooking method finishes, close each heater, utilize control device 80 to drive baffle plate motor 78 rotatably, to open outlet opening portion 70.Like this, the hot blast in the heating clamber 5, steam, superheated steam can be discharged from outlet opening portion 70, and be discharged to the outside of interior case 4.Then be discharged to the outside of outer container 2, so finish the cooking from the exhaust outlet (not shown) that is located on the outer container 2.

Explanation now is chosen in the situation of the cooking menu (hereinafter being called " vitamin C increase menu ") of " Low Temperature Steam " of storage in the 1st grade, " vitamin C increase " in selecting the 2nd grade.

The cooking menu that is somebody's turn to do " vitamin C increase " is by carry out the ascorbic increase method of the gratin of storing in memory 80a, the cooking menu of the health of considering the user that makes the vitamin C increase of gratin and cook, after selecting to be somebody's turn to do the menu of " vitamin C increase ", be chosen in the food material of storing among the memory 80a, and further be chosen in the weight of a certain food material in this lower layer, begin to carry out this method by making it.

It is that spinach (40g) is as the cooking method that will increase ascorbic gratin that the green-yellow vegetables are used in explanation now.

At first, the 40g spinach is placed in the heating clamber.Then, on operating portion 9, select " Low Temperature Steam "-" vitamin C increase "-" spinach "-" 40g ", begin to carry out.

Like this, control device 80 is just carried out according to " the cooking method program that the vitamin C in the 40g spinach is increased " of storing in memory 80a.

At first, open steam heater 44, heating steam generation container 41.

Then, the thermistor 48 that is arranged in the steam generation container 41 is judged when the temperature of the 41a of steam generating chamber reaches 80 ℃, drives feed pump 56, begins to supply water to steam generation container 41 from water tank 54.

Utilize feed pump 56 that a spot of water is supplied in the steam generation container 41, this water enters into 41a of steam generating chamber and evaporation.

The steam that produces in the 41a of this steam generating chamber is discharged in the heating clamber 5 by steam blow-off outlet 49.Then, control device 80 is supplied with steam continuously in heating clamber 5, until the temperature in the heating clamber 5 becomes 40 ℃, make the state that becomes saturated vapor in the heating clamber.

Temperature in heating clamber reaches 40 ℃ and when temperature sensor 19 detects this situation, adjust the temperature of the 41a of steam generating chamber and the supply of steam changeably, so that keep 40 ℃ and keep the state of saturated vapor in the heating clamber, thereby under the environment of 40 ℃ saturated vapors, utilize the condensation heat effect that spinach is cooked.

After temperature sensor 19 detects 40 ℃, during through 5 minutes, stop steam and supply with, open the exhaust screen 72 of steam output mechanism 71, steam is discharged to outside the heating clamber.

As mentioned above, control device 80 can be carried out " vitamin C increase " menu, and the ascorbic containing ratio of spinach is increased.

This increases ascorbic cooking method is test the method that established data is carried out in advance according to utilizing, with reference to Fig. 7 illustrate this experimental data and according to.

Fig. 7 changes various cook temperatures to the datagram that the 40g spinach experimentizes under the condition of saturated vapor, suppose that the ascorbic amount before the cooking is 1, carries out cooking then, and the figure shows the preceding vitamin C of the cooking has increased what.The longitudinal axis is represented ascorbic increment rate, and transverse axis is represented the cooking time.In addition, the vitamin C here is the ascorbic data of reduced form.

From this experimental data as can be seen, be that vitamin C is no more than 1, through after the regular hour, demonstrates vitamin C and is reducing under 20 ℃ to 35 ℃ the condition at cook temperature.

In addition, even be under 50 ℃ to 100 ℃ the condition at cook temperature, also can see comparing before the ascorbic amount and the cooking and reduce.

In addition, be under 50 ℃ the situation, when the cooking time is 15 minutes, maximum can occur at cook temperature, but can be increased to the vitamin C that surpasses before the cooking again.

Wherein, in cook temperature is 40 ℃, 45 ℃ condition, after reaching design temperature and beginning heating, can see that ascorbic amount increases immediately.Then, can see that begin after the cooking during through 10 minutes, vitamin C is 1.25 in the time of 40 °, in the time of 45 ° even be increased to 1.3,, just begin afterwards to reduce sharp near maximum in slow increase.

Like this, for this cooking conditions, compare with the ascorbic amount of spinach before the cooking, it demonstrates and can make spinach contain 1.25,1.3 times vitamin C.

That is to say, from this experimental data as can be seen, for spinach, when in the atmosphere of certain set point of temperature, carrying out the Low Temperature Steam cooking, the phenomenon that vitamin C increases can take place, in addition, when in the atmosphere of this set point of temperature, keeping heating, through after a certain stipulated time, the phenomenon that vitamin C sharply reduces can take place.

Therefore, according to this experimental data,, supply with steam in the atmosphere of set point of temperature, to carry out the condensation heat transfer heating by " vitamin C increase " menu is programmed to, and when vitamin C becomes maximum, stop the cooking, thereby can when the vitamin C amount is maximum, take out spinach.

Therefore, when the user has this spinach, compare, can have the spinach that vitamin C increases, thereby can provide healthy gratin to the user with the spinach before the cooking.

Illustrate that the weight that changes spinach seeks the experimental data of ascorbic increment rate in addition here.

Fig. 8 is to use 40 ℃ steam cooking 30g and the experimental data of 40g spinach, supposes that the ascorbic amount before the cooking is 1, and the figure shows the preceding vitamin C of the cooking has increased what.In addition, the vitamin C here is the data that reduced form and oxidized form combine the vitamin C amount of total.The longitudinal axis is represented ascorbic increment rate, and transverse axis is represented the cooking time.

Like this, concerning 40g, vitamin C is increased to 1.6 and reach maximum through 10 minutes the time, and for 30g, and vitamin C is increased to 1.5 and reach maximum during through 5 minutes.

Therefore, according to these data, when cooking the spinach of 30g, can utilize steam to form 40 ℃ heating clamber environment, by making heating clamber reach 40 ℃ to stop to supply with steam when beginning through 5 minutes from supplying with steam, finish the cooking then, can cook out the ascorbic spinach that contains 1.5 times of the preceding vitamin C amounts of the cooking.

Like this, because in the gratin of green-yellow vegetables such as spinach, by in the Low Temperature Steam atmosphere of set point of temperature, applying cooking stress, and the experimental data that increases according to vitamin C, in heating device, set the cooking of using steam, therefore the user can easily produce with cooking preceding vitamin C and compare the vitamin C of increase, and the user can absorb vitamin C easy and conveniently.

In addition, because when being heated to the ascorbic set point of temperature of increase, can find to reach the peaked time, through this official hour the time, because by finishing the cooking through stopping to supply with steam after this stipulated time, therefore the user can be when vitamin C be maximum the edible cooking thing, absorb more vitamin C.

Especially, be under the situation of green-yellow vegetables at gratin, it is 40 ℃ to 50 ℃ that supply steam makes the temperature in the heating clamber, can increase the vitamin C of gratin.

In addition, the steam feedway is made of with heater and to the feed pump of the indoor water supply of described steam generation the steam of steam generation container, the described steam generation container of heating, for steam is supplied to heating clamber from described steam generation container, by continuously steam being supplied to heating clamber, can make the state of the steam that reaches capacity rapidly in the heating clamber.Therefore, the time that can make ascorbic amount reach maximum is done sth. in advance.

In addition, by official hour in the steam atmosphere that gratin is placed on the set point of temperature band (being 40 ℃-45 ℃ (referring to Fig. 7)) below 100 ℃ for spinach, the vitamin C that increases gratin is (for the spinach among Fig. 7, heating clamber reaches 40 ℃, and after 40 ℃ temperature begins to heat about 10 minutes time), further, when gratin reaches the ascorbic stipulated time band that increases gratin (ascorbic amount become " 1 " time when above be with), supply with steam owing to stop using steam raising plant 40, place the quantity of steam in the heating clamber of gratin with minimizing, therefore can take out the gratin that vitamin C has increased.

In addition, also can make gratin increase ascorbic stipulated time of gratin and utilize steam output mechanism 71 that the steam heating clamber 5 in is discharged to outside the heating clamber 5 during band reaching, discharge the gratin that back taking-up vitamin C has increased at steam.

The user can take out gratin when the vitamin C of this gratin increases, with the cooking before compare gratin vitamin C edible before reducing, thereby can absorb with cook before compare the vitamin C of increase.

In addition, when the gratin that takes out vitamin C from cooking room and increase state is placed on the normal temperature state of non-steam atmosphere, because vitamin C can not reduce sharp, even eat this gratin after placing the long period, the user also can have the gratin that vitamin C increases.

In addition, be placed on official hour in 40 ℃-45 ℃ the steam atmosphere by the gratin that will comprise spinach, owing to increased the vitamin C that is included in the spinach in the gratin, so the user can have the gratin that this vitamin C increases state.

Though the experimental data of spinach shows the data that are limited to 30g and 40g among above-mentioned Fig. 8, the ascorbic increase method of experimental data (referring to Fig. 9) use to(for) 1 spinach (weight is 15g) can be shown also in addition here.

The same amount of measuring reduced form vitamin with Fig. 7 of Fig. 9 supposes that the ascorbic amount before the cooking is 1, and the ascorbic increment rate in cooking back is set at the longitudinal axis, and cooking elapsed time is a transverse axis.Different with Fig. 7 is to be the time started (0 minute) of transverse axis in the zero hour that steam is supplied to heating clamber.

In this experiment, 1 spinach is contained in carries out the Low Temperature Steam cooking in the described heating clamber 5, in heating clamber, to supply with steam then and confirm whether the vitamin C of gratin increases, the temperature in heating clamber becomes under the condition of 40 ℃ and 42 ℃ and experimentizes.

Under the temperature in the heating clamber being set at 42 ℃ the situation of experimental data, heating supplies to water in the steam generation container 41 so that its evaporation begins to supply with this steam (0 minute) to heating clamber, the preheating heating clamber during through 3 minutes heating clamber reach 42 ℃.So after the set point of temperature that reaches these 42 degree began heating, ascorbic amount began to increase sharp.

Next, Yi Bian keep 42 ℃ of this set points of temperature, Yi Bian when continuing heating through 10 minutes (from reaching 42 ℃ when beginning through 7 minutes), ascorbic amount reaches 1.5 times maximum.Just reduce gradually at leisure afterwards.

In addition, under the temperature in the heating clamber being set at 40 ℃ the situation of experimental data, carry out preheating after beginning to supply with steam (0 minute), the temperature after 3 minutes in the heating clamber reaches 40 ℃.

Afterwards, in making heating clamber, keep 40 ℃ set point of temperature, and when making 40 ℃ of the temperature maintenance of a part on gratin surface, the ascorbic amount of comparing with uncooked state moves near doubly in " 1 ", and vitamin C begins increase through 10 minutes the time.That is to say, reach in the heating clamber 40 ℃ promptly under set point of temperature from begin heating during through 7 minutes vitamin C can increase.

Then, during through 20 minutes (from reaching 40 ℃ when beginning through 17 minutes), ascorbic increase reaches 1.45 times numerical value near maximum.

Like this,,, make the part of gratin maintain set point of temperature band i.e. 40 degree and 42 degree, also can increase the vitamin C of gratin by control steam raising plant 40 even in the spinach of 1 weight (15g).

In addition, at the stipulated time band that vitamin C increases, just the time band that ascorbic amount becomes 1 above scope in Fig. 9 (is to begin after reaching 42 ℃ during with 42 ℃ of cookings, during with 40 ℃ of cookings beginnings in 7 minutes after reaching 40 ℃, ascorbic amount is not reduced to the scope below 1) in, if stop the cooking of " vitamin C increase " menu, can take out the gratin that vitamin C increases.

Especially, because weight corresponding to cook temperature and gratin, ascorbic amount is being different to the peaked time in different occasions, therefore can seek to reach the peaked time by experiment in advance, near this stipulated time, stop the cooking of " vitamin C increase " menu, thereby can take out the high gratin of vitamin C amount.

In this case, as the method that stops cooking, also can with the action of described " vitamin C increase " menu illustrated stop steam raising plant 40 like that, and reduce the quantity of steam of in the heating clamber of steam raising plant 40, supplying with.For example, can reduce the quantity of steam of in heating clamber 5, supplying with from the 41a of steam generating chamber by postponing the timing that feed pump 56 intermittently drives.

In addition similarly, also can the steam in the merit hot cell 5 be discharged to outside the heating clamber, stop to increase ascorbic cooking then with the illustrated such steam output mechanism 71 that drives of action of described " vitamin C increase " menu.

The gratin that vitamin C is increased.

In addition, except spinach, the inventor has also carried out increasing the ascorbic experiment of various gratins, the following describes the data that obtain from these result of experiment.

Figure 10 is to use pimiento as gratin and the experimental data of utilizing the heating clamber 5 of the foregoing description to regulate ascorbic amount increase and decrease.Here be not use pallet and the central authorities that a pimiento is placed on heating clamber are measured.In addition, the vitamin C here is a reduced form vitamin.

From this experimental data as can be seen, in the steam atmosphere temperature in the merit hot cell 5 being set in 40 ℃, 42 ℃ situation, ascorbic amount can increase.

Figure 11 is to use radish as gratin and the experimental data of utilizing the heating clamber 5 of the foregoing description to measure.The interior temperature change of heating clamber that will be full of steam in the experiment is 40 ℃, 50 ℃, 60 ℃.Columniform radish is pressed the shape of ginkgo leaf and cut, the radish that section is cut into 1/8 shape is placed in the heating clamber to be measured.

In addition, the ascorbic longitudinal axis is represented reduced form vitamin, and transverse axis is cooking elapsed time, to time (0 minute) to start with zero hour that heating clamber is supplied with steam.

If adopt this method, when the temperature in the heating clamber was set at 40 ℃, ascorbic amount can reduce, but can increase under 50 ℃, 60 ℃ situation.

In 40 ℃, 50 ℃, 60 ℃, it is under 50 ℃ of conditions of cooking that vitamin C is increased to maximum temperature, and it can be increased to 1.3 times ascorbic amount.Therefore, if control steam raising plant 40 is near these 50 ℃ temperature band with a part of keeping radish, then concerning radish, just can obtain the vitamin C amount of maximum.

Therefore, be not only the such green-yellow vegetables of spinach, pimiento, even the so faint yellow vegetables of radish also can increase ascorbic amount.

In addition,, after steam is supplied with beginning (0 minute), reach 50 ℃, 60 ℃ also respectively through 4 minutes, 5 minutes, then just be increased to more than " 1 " at vitamin C after 12-13 minute up to heating clamber 5 according to this experimental data.

Therefore, stop the cooking after keeping this temperature band, just can take out the radish of vitamin C amount increase if reach 12-13 minute time of set point of temperature band (about 50 ℃-about 60 ℃) beginning in a part from gratin.

Since from a part of keeping radish be in 50 ℃ of beginnings after 15 minutes ascorbic amount reached maximum, therefore stop to supply with steam and exhaust steam constantly at this, just can obtain the radish of ascorbic amount maximum.

Like this, by measuring the gratin that vitamin C increases, and utilize experiment in advance to grasp the set point of temperature band below 100 ℃ in the ascorbic steam atmosphere that increases this gratin, can set menu corresponding to " the vitamin C increase " of gratin, thereby by carrying out this menu, the healthy gratin that can provide vitamin C to increase to the user.That is to say that corresponding to the kind of gratin, changing increases ascorbic set point of temperature band and increase ascorbic stipulated time band, concerning various gratins such as spinach, pimiento, radish, the gratin that can provide vitamin C to increase.

In this case, also can control steam raising plant 40, being in a part of keeping gratin increases ascorbic set point of temperature band below 100 ℃.

As present embodiment, also can measure temperature in the heating clambers 5 with temperature sensor 19, can infer that the temperature in the heating clamber 5 that this temperature sensor 19 detects become the temperature that a part reached of gratin.In this case, the temperature in the heating clamber 5 is consistent with the temperature on gratin surface.In addition, even the temperature in the temperature sensor 19 detected heating clambers is higher than the temperature that vitamin C increases defined, the part that also can only keep gratin is in the temperature band of regulation.

In addition, also can use infrared ray sensor directly to detect the temperature of gratin as temperature sensor 19.So just can control the precision of " vitamin C increase " menu well.

Similarly, the probe of detected temperatures can certainly be set especially, it is directly contacted with gratin, directly detected temperatures.

In addition,, also can utilize the supply of steam raising plant 40 control steam, drive Hot-air fan 61 simultaneously, make the temperature in the heating clamber identical for a part of keeping gratin is in the set point of temperature band.

In addition, expectation be in increasing the ascorbic process of gratin, gratin is maintained in the atmosphere of saturated vapor.Like this, steam raising plant 40 is by supplying with steam continuously in heating clamber 5, air in the heating clamber 5 is extruded from the gap between front peristome 5d and the door 6 etc., thereby made the saturated vapor atmosphere that becomes in the heating clamber substantially, keep this saturated vapor atmosphere substantially afterwards.

In addition,, preferably control steam raising plant 40, reach near maximum temperature band to keep ascorbic increase for the temperature of gratin.As mentioned above, be about 45 ℃ under the situation of spinach, be about 50 ℃ under the situation of radish, in the gratin of under this temperature, cooking, can obtain to contain maximum ascorbic gratin.

In addition, though present embodiment can constitute, the setting that in operating portion 9, has " Low Temperature Steam " cooking, and can select the cooking menu of " vitamin C increase " in this lower layer, but the dedicated button 9a of the cooking menu of selecting to carry out " vitamin C increase " can be set directly in operating portion 9 as shown in Figure 12 also.So, push ascorbic dedicated button at every turn, just in display part 10, press the DISPLAY ORDER Alternation Display of " spinach ", " pimiento ", " radish ", when showing the gratin of expectation, can begin to increase the ascorbic cooking method that exists in the corresponding gratin by pushing the beginning key.

(embodiment 2)

Below, with reference to Figure 13 to 29, illustrate in the state that the temperature that is suitable for below boiling point eats as warm vegetables with the vegetables of the steam cooking, do not import new cooking conditions and the embodiment of the cooking method that heats.

The heating device of implementing cooking method in the present embodiment comprises the cooking room of placing gratin, magnetron to described cooking room internal radiation microwave, heat the hot plate in the described cooking room, in described cooking room, supply with the steam feed mechanism of steam, detect the internal temperature sensor of the temperature in the described cooking room, described magnetron is controlled in running respectively, the cooking controller of described heater and described steam feed mechanism, it is characterized in that described cooking controller can carry out the 1st cooking conditions of setting the 1st cooking conditions and set and handle, so that be placed on gratin in the described cooking room with Steam Heating, and carry out the 2nd cooking conditions of setting the 2nd cooking conditions and set processing, so that be placed on gratin in the described cooking room with heating using microwave, when setting the 1st cooking conditions, operate described steam feed mechanism and in described cooking room, supply with steam, simultaneously according to the duty of controlling described steam feed mechanism or described heater from the output signal of described internal temperature sensor, make the following temperature range of boiling point of keeping water in the described cooking room on one side, setting result corresponding to the 1st cooking conditions carries out the 1st cooking stroke that the gratin that is placed in the described cooking room is heated on one side, when setting the 2nd cooking conditions, by from described magnetron to described cooking room internal radiation microwave, setting result execution corresponding to the 2nd cooking conditions is carried out the 2nd warm cooking stroke to the gratin that is placed in the described cooking room, can be in the 1st cooking stroke is carried out, begin the 2nd cooking stroke when stopping or after stopping.

The outer container 101 of Figure 13 forms the square box of front openings, and it has left plate, right plate, base plate, top board and back plate.As shown in figure 14, the internal fixation of this outer container 101 has an interior case 102.Case 102 forms the square box of front openings in being somebody's turn to do, and it has left plate, right plate, base plate, top board and back plate.Gratin can be put and take out in the inner space of case 102 as the cooking room 103 of front openings into from the front of cooking room 103 in being somebody's turn to do.

As shown in figure 13, in outer container 101, door 104 following end horizontal axles are that the center rotatably is installed with, thereby door 104 can in the vertical closed position of the front of closing cooking room 103 (referring to Figure 13) and to open between the open position (referring to Figure 14) of the front of cooking room 103 with the axle be the center rotary manipulation.Door switch 105 (referring to Figure 17) is installed in the outer container 101.This door switch 105 is made of the press button that can reset certainly, closed condition at door 104, the operated key utilization door 104 of door switch 105 is pressed into the position and opens door switch 105 by operating in, in the open mode of door 104, the operated key of door switch 105 is closed door switch 105 by being projected into off position.

As shown in figure 14, forming square tray support 106 on the rail-like of extending on the left plate of interior case 102 and the right plate respectively along fore-and-aft direction.Go up square tray support 106 as shown in figure 15 for these two, arrange in the face of ground mutually at left and right directions, general square pallet 107 is arranged on this on square tray support 106 dismantledly.As shown in figure 14, forming square tray support 108 under the rail-like of extending on the left plate of interior case 102 and the right plate respectively along fore-and-aft direction.Square tray support 108 arranges that in the face of ground general square pallet 107 is arranged on the square tray support 108 of this time dismantledly mutually at left and right directions as shown in figure 15 under these two.That is to say, 2 square pallets 107 that are spaced from each other layout at above-below direction are installed in the cooking room 103 dismantledly.

As shown in figure 16, be fixed with the fan drum 109 that is positioned at cooking room 103 outsides on the back plate of interior case 102, taken in circulating fan 110 in this fan drum 109.This circulating fan 110 is to suck air and discharge the centrifugal fan of air from radial direction from axial direction, and the rotating shaft of fan electromotor 111 is connected in the circulating fan 110.This fan electromotor 111 is arranged in inactive state in the space between the back plate of the back plate of outer container 101 and interior case 102, by the rotating shaft rotation that makes fan electromotor 111 circulating fan 110 and rotating shaft is rotated together.

As shown in figure 14, on the back plate of interior case 102, be formed with air entry 112.This air entry 112 is aggregates of a plurality of through holes of case 102 back plates in running through along thickness direction, and relatively arranges with the central portion of circulating fan 110.As shown in figure 16, this air entry 112 be arranged to two square pallets 107 when all being installed in the cooking room 103 between two square pallets 107, the peripheral part of air entry 112 forms the circular row gas port 113 around air entry 112 as shown in figure 14.This exhaust outlet 113 is aggregates of a plurality of through holes of case 102 back plates in running through along thickness direction, when circulating fan 110 rotations, shown in the arrow among Figure 16, air in the cooking room 103 is drawn into the fan drum 109 from air entry 112, and is discharged in the cooking room 103 from fan drum 109 by exhaust outlet 113.

As shown in figure 14, the internal fixation of fan drum 109 has the annular exterior heater 114 that is equivalent to heater.This external heater 114 is by heating the air that is attracted in the fan drum 109 by circulating fan 110 in fan drum 109, make the air that is discharged to cooking room 103 from exhaust outlet 113 become hot blast, thereby when under two square pallets 107 are installed in state in the cooking room 103 respectively, fan electromotor 111 and 114 two of external heaters all being turned round, shown in the arrow among Figure 16, the hot blast that can form below the square pallet 107 of topping bar hot blast that flows from front to back and the hot blast that flows from back to front and the hot blast that flows from front to back respectively and flow from back to front below the square pallet 107 of getting out of a predicament or an embarrassing situation above the square pallet 107 of topping bar above the square pallet 107 of getting out of a predicament or an embarrassing situation is placed on two gratins on two square pallets 107 from both sides heating up and down respectively.Utilize the cooking of this hot blast to be called the baking cooking.

As shown in figure 16, in the space between the base plate of the base plate of outer container 101 and interior case 102, be furnished with the waveguide pipe 115 of extending at fore-and-aft direction with inactive state, the rearward end of this waveguide pipe 115 is connected with magnetron 116.This magnetron 116 is arranged in inactive state in the space between the right plate of the right plate of outer container 101 and interior case 102, can be from this magnetron 116 to waveguide pipe 115 internal radiation microwaves when magnetron 116 runnings.The leading section of this waveguide pipe 115 is formed with the irradiation mouth of microwave, and the irradiation mouth of waveguide pipe 115 faces toward the backplane of interior case 102 from the below.The part mouthful relative with irradiation on this base plate is made of the heat resistant glass that can see through microwave, and the part of microwave by the base plate of interior case 102 that shines in the waveguide pipe 115 from magnetron 116 shines in the cooking room 103 from the irradiation mouth of waveguide pipe 115.Rotable antenna has been taken in the inside of this waveguide pipe 115, and this rotable antenna is connected with the rotating shaft of antenna motor 117 (referring to Figure 17).This antenna motor 117 is arranged in inactive state in the space between the base plate of the base plate of outer container 101 and interior case 102, by operating rotable antenna rotatably, can stir the microwave that shines in the cooking room 103 in waveguide pipe 115.Utilize the cooking of this microwave to be called microwave cooked.

As shown in figure 16, in the space between the base plate of the base plate of outer container 101 and interior case 102, take in detachable feed-tank 118.This feed-tank 118 can store water, and as shown in figure 15, feed-tank 118 is connected with the water sucking mouth of feed pump 119.This feed pump 119 is made of the electrodynamic pump (lave-out motor) that the water with feed-tank 118 inside drains out feed-tank 118 outsides, and pump motor 120 is made its work (referring to Figure 17) as drive source.As shown in figure 15, the discharge outlet of this feed pump 119 is connected with the steam chest 121 (being equivalent to the steam generating unit) that the aluminum dipping form casting that forms hollow form is made.This steam chest 121 is arranged in inactive state in the space between the left plate of the left plate of outer container 101 and interior case 102, utilizes the pressure that spues of feed pump 119 water that feed pump 119 drains out in the feed-tank 118 can be injected into the inside of steam chest 121.

As shown in figure 15, in the upper end of steam chest 121, the casting of the interior location of wall thickness be equivalent to heating source on steam heater 122, in the bottom of steam chest 121, steam heater 123 under the interior location casting of wall thickness.Should go up steam heater 122 and following steam heater 123 and form at fore-and-aft direction linearly extended bar-shapedly respectively, they can make from feed pump 119 and be injected into water evaporation in the steam chest 121, thereby can make steam chest 121 intensifications.The specified output that should go up steam heater 122 is set at 900W, and the specified output of following steam heater 123 is set at 300W, can be with different caloric value work mutually with following steam heater 123 thereby go up steam heater 122.Should go up steam heater 122 and be equivalent to heating source.

As shown in figure 15, be fixed with a plurality of conduits 124 that form a line each other at fore-and-aft direction on steam chest 121, the left plate of case 102 was projected in the cooking room 103 in the front end of a plurality of conduits 124 ran through.A plurality of conduits 124 are arranged between square tray support 106 and the following square tray support 108, and the steam that generates in steam chest 121 is ejected in the cooking room 103 with certain steam pressure by each conduit 124.Each conduit 124 is equivalent to ejiction opening, and its front end is covered by common housing 125.This housing 125 can be accepted from the steam of each conduit 124 ejections, and the front end of each conduit 124 visually can not identification mode be covered with the user.Feed-tank 118, feed pump 119, pump motor 120, steam chest 121, last steam heater 122, following steam heater 123 and a plurality of conduit 124 have constituted the steam feed mechanism of supplying with steam in cooking room 103, and this utilizes the cooking of steam to be called the steam cooking.

As shown in figure 13, on door 104, be fixed with rectangular guidance panel 126, exercisable dial 127 is installed in this guidance panel 126.This dial 127 is equivalent to be used to select the operated key and the operated key that is used to select to cook menu of cooking mode respectively, and axle 128 can center on the center rotary manipulation.This axle 128 is that fore-and-aft direction extends when door 104 is in closed condition, and dial 127 can slide the off position and being pressed between the position of rear side of front side along axle 128.This dial 127 can be connected with the operated key of encoder 129 (referring to Figure 17) and the operated key of definite switch 130 (referring to Figure 17) respectively.Encoder 129 sends a pulse signal at every turn when the rotation amount of dial 127 reaches predetermined unit angle.Determine that switch 130 is made of the press button that can reset certainly, and dial 127 is closed when stopping at the state of off position, can opens it to being pressed into the position from the off position slide by making dial 127.

As shown in figure 13, beginning switch 131 and cancellation switch 132 are installed on the guidance panel 126.Beginning switch 131 can begin cooking corresponding to the selection result of cooking menu, and it is equivalent to operated key.Cancellation switch 132 can be respectively cooking begins before cancellation cooking menu situation and begin to operate under the situation of Halfway Stopping cooking beginning switch 131 and cancel switch 132 and constitute by the press button that can reset certainly respectively at cooking.Display 133 is installed on the guidance panel 126.This display 133 is made of LCD, and this display 133 can show guide information from cooking order to the user that reports.

As shown in figure 17, arranged that with inactive state the control loop 134 of microcomputer as main body arranged in the space between the right plate of the right plate of outer container 101 and interior case 102.This control loop 134 comprises CPU (CPU) 150, ROM (read-only storage) 151, RAM (random access memory) 152, door switch 105, encoder 129, determine switch 130, the beginning switch 131, the cancellation switch 132 be connected respectively in the control loop 134.This control loop 134 is equivalent to cook menu selecting apparatus, cooking controller, tape deck respectively, also is connected with motor-driven loop 135 and heater-driven loop 136 on control loop 134.Motor-driven loop 135 can apply driving power to fan electromotor 111, control loop 134 can make fan electromotor 111 turn round with certain speed along a certain direction by opening motor-driven loop 135, drives loop 135 by disable motor fan electromotor 111 is shut down.Heater-driven loop 136 can apply driving power to external heater 114, and control loop 134 drives the caloric value that external heater 114 can be controlled in loop 136 by opening/closing ground control heater.

As shown in figure 17, be connected with driven by magnetron loop 137 and motor-driven loop 138 in the control loop 134.Driven by magnetron loop 137 can apply driving power to magnetron 116, and control loop 134 is controlled the output that magnetron 116 can be controlled in driven by magnetron loop 137 by opening with closing.Motor-driven loop 138 can apply driving power to antenna motor 117, control loop 134 can make antenna motor 117 turn round with certain speed along a certain direction by opening motor-driven loop 138, drives loop 138 by disable motor antenna motor 117 is shut down.

As shown in figure 17, be connected with motor-driven loop 139, heater-driven loop 140 and heater-driven loop 141 in the control loop 134.Motor-driven loop 139 can apply driving power to pump motor 120, control loop 134 can make pump motor 120 turn round with certain speed along a certain direction by opening motor-driven loop 139, drives loop 139 by disable motor pump motor 120 is shut down.Heater-driven loop 140 steam heater 122 that can make progress applies driving power, and control loop 134 is closed the ground control heater and driven the caloric value that steam heater 122 can be controlled in loop 140 by opening.Heater-driven loop 141 steam heater 123 downwards applies driving power, and control loop 134 is closed the caloric value that steam heater 123 can be controlled down in control heater driving loop 141, ground by opening.

As shown in figure 17, be connected with LCD (liquid crystal display) in the control loop 134 and drive loop 142 and siren driving loop 143.LCD drives loop 142 can apply driving power to display 133, and control loop 134 drives the displaying contents that display 133 can be controlled in loop 142 by driving control LCD.Siren drives loop 143 can apply driving power to the siren 144 that is equivalent to alarm device.This siren 144 is accommodated in the space between the right plate of the right plate of outer container 101 and interior case 102, control loop 134 by respectively when cooking finishes and cooking drive siren driving loop 143 when interrupting, from siren 144 sound of giving notice.

As shown in figure 17, be connected with internal temperature sensor 145, food temperature sensor 146 and vapor (steam) temperature sensor 147 (being equivalent to the generating unit temperature sensor) in the control loop 134.Internal temperature sensor 145 is made of the thermistor that is arranged in the cooking room 103, and the internal temperature signal of control loop 134 bases temperature sensor 145 outputs internally detects the temperature in the cooking room 103, i.e. internal temperature.Food temperature sensor 146 is made of the infrared temperature sensor on the surveyed area in the whole zone that is arranged in cooking room 103 bottom surfaces, control loop 134 is according to the surface temperature of the infrared signal detection gratin of exporting from food temperature sensor 146, instant food temperature.Vapor (steam) temperature sensor 147 is made of the thermistor that is arranged in the steam chest 121, and control loop 134 is according to the temperature in the vapor (steam) temperature signal detection steam chest 121 of vapor (steam) temperature sensor 147 outputs, i.e. vapor (steam) temperature.This vapor (steam) temperature sensor 147 is equivalent to the spin manifold temperature sensor.

Shown in Figure 18 (a), the cooking mode data have been write down among the ROM151 of control loop 134 in advance.These cooking mode data are to show in display 133 that the cooking mode that is used to select cooking mode selects the video data of picture, are set with " microwave ", " baking ", " high-temperature steam " and " Low Temperature Steam " in the cooking mode data.Shown in Figure 18 (b), write down the dishes forms data among the ROM151 of control loop 134 in advance.This dishes forms data is to show in display 133 that the cooking menu that is used to select to cook menu selects the video data of picture, be respectively arranged with cooking menu " warm milk " and " scalding heat " in the cooking mode " microwave ", be respectively arranged with cooking menu " apple pie " and " cake " in the cooking mode " baking ", be respectively arranged with cooking menu " roasting whole chicken " and " hamburger " in the cooking mode " high-temperature steam ", be respectively arranged with cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " in the cooking mode " Low Temperature Steam ".As shown in figure 19, write down cooking guidance data in advance among the ROM151 of control loop 134.This cooking guidance data is the video data that can be used to show cooking method in display 133, and the cooking menu of using corresponding to Low Temperature Steam respectively " soaks crowndaisy chrysanthemum " and " simmering cabbage and scallop " is provided with.

As shown in figure 20, write down the Low Temperature Steam deal with data in advance among the ROM151 of control loop 134.This Low Temperature Steam deal with data is the cooking conditions of in cooking mode " Low Temperature Steam " gratin being cooked, and it can be provided with cook temperature ta, limit temperature t b, feedwater time T a, steam cooking time T b and microwave cooked time T c respectively from specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop ".Cook temperature ta1 is the temperature that is used to make the ascorbic amount of crowndaisy chrysanthemum to increase than the state of giving birth to, and cook temperature ta2 is the temperature that is used to make the ascorbic amount of cabbage to increase than the state of giving birth to.This cook temperature ta1 is to handle the experiment value of measuring according to implement the vitamin increment under different a plurality of cook temperatures for uncooked food material with ta2, and this vitamin increment is handled and is meant the processing that food material is placed on the stipulated time in the about 40 ℃ environment that contains water vapour.

We know that general biology can utilize the activity of organism to produce peroxide, particularly vegetables with strong oxidation (toxicity) can produce the strong vitamin C of reducing power that is used for eliminating peroxide.That is to say; when vegetables being placed in the environment that is bearing strict pressure; the activity of meeting excited oxygen is with the antagonism environmental pressure; to generate polyphenoils in large quantities be the character that vitamin C is protected oneself thereby have; handle by implementing the vitamin increment, can increase the vitamin C that vegetables contain to vegetables.

Figure 21 shows uncooked crowndaisy chrysanthemum and implement the experimental result that the vitamin increment is handled under different mutually a plurality of cook temperature.This experimental result is that the ascorbic amount of not cooking crowndaisy chrysanthemum before supposition beginning vitamin increment is handled is 100%, handle the curve that stops back drafting vitamin C amount at the vitamin increment then, the cooking time is all set identical 10 minutes under a plurality of cook temperatures.This ascorbic amount can use the vitamin C measurement mechanism to measure, and the vitamin C amount of crowndaisy chrysanthemum is maximum when 43 ℃ of cook temperatures, is lower than 100% when 36.8 ℃ of cook temperatures.The cook temperature ta1 of Figure 20 and ta2 are respectively that the ascorbic amount of food material reaches maximum maximum, and the limit temperature t b1 of Figure 20 and tb2 are respectively that ascorbic amount is lower than 100% boundary value.This limit temperature t b1 is respectively to obtain from the experimental result of implementing the processing of vitamin increment for uncooked food material under different mutually a plurality of cook temperatures with tb2, and it sets the cook temperature that is lower than same food material for.

The feedwater time T a1 of Figure 20 and Ta2 are respectively the durations of runs of pump motor 120, set corresponding to the feedwater time for the injection rate of the water of steam chest 121.Steam cooking time T b1 and Tb2 are respectively that the vitamin increment is handled the required time, and the ascorbic amount and the dependency relation in elapsed time under the situation that the vitamin increment handles implemented in being shown in dotted line in the experiment among Figure 22 to the 100g crowndaisy chrysanthemum.Utilize this experimental result, the ascorbic amount of crowndaisy chrysanthemum reaches maximum in " 10 minutes ", and is reducing along with the carrying out of time through " 10 minutes " back.Steam cooking time T b1 and Tb2 obtain from the experimental result of uncooked food material being implemented the processing of vitamin increment, and its ascorbic amount of setting food material for reaches the maximum time.

The microwave cooked time T c1 of Figure 20 and Tc2 are respectively the required time of warm processing.This warm processing can be edible as warm vegetables with the low temperature food material of having implemented the processing of vitamin increment, and it can carry out the microwave irradiation that power output is 600W to food material.The solid line of Figure 22 shows the experimental result of the 100g crowndaisy chrysanthemum being implemented in order processing of vitamin increment and warm processing, and ascorbic amount reduces along with the carrying out of warm processing in the crowndaisy chrysanthemum.Microwave cooked time T c1 and Tc2 are respectively that the vitamin increment is handled and the experimental result of warm processing obtains from uncooked food material is implemented in order, the higher time of state of the life before its ascorbic amount of setting food material for is handled than beginning vitamin increment.

Write down control program among the ROM151 of control loop 134 in advance, the CPU150 of control loop 134 drives control fan electromotor 111, external heater 114, magnetron 116, antenna motor 117, pump motor 120, goes up steam heater 122 and following steam heater 123 according to control program, puts into the gratin of cooking room 103 with cooking.Below, explain control program.

When the CPU150 of control loop 134 connects power supply, the cooking mode counter Na of RAM152 is reset to " 0 ", the dishes single counter Nb of RAM152 is reset to " 0 " at step S2 at the step S1 of Figure 23.This cooking mode counter Na and dishes single counter Nb are respectively according to the operational ton from the pulse signal measuring and adjusting control panel 127 of encoder 129 output, CPU150 advances to step S3 when step S2 replacement dishes single counter Nb, and shows cooking mode selection picture according to the cooking mode data of ROM151 in display 133.This cooking mode selects picture to arrange by 4 kinds of situations at above-below direction, be word " microwave ", " baking ", " high-temperature steam " and " Low Temperature Steam ", show that with white all the other words " baking ", " high-temperature steam " and " Low Temperature Steam " except that " microwave " are all used black display at step S3 word " microwave ".

When CPU150 shows that at step S3 cooking mode is selected picture in display 133, judge whether pulse signal from encoder 129 at step S4.When judgement has pulse signal from encoder 129, advance to step S5, and will be in ROM151 in cooking mode counter Na in advance the unit value of record add together and calculate.Then, advance to step S6, use white to show a word corresponding to the addition results of cooking mode counter Na in word " microwave ", " baking ", " high-temperature steam " and " Low Temperature Steam ", black display all used in remaining 3 word.That is to say, when cooking mode is selected under the show state of picture rotating operation dial 127, operational ton corresponding to dial 127 in word " microwave "～word " Low Temperature Steam " shows a word with white, and black display all used in remaining 3 word.

When CPU150 judges not pulse signal from encoder 129 at step S4, judge whether from the signal of opening of determining switch 130 at step S7.When judgement have from determine switch 130 open signal the time, advance to step S8, and determine that at the cooking mode of RAM152 record is corresponding to the cooking mode of the present measurement result of cooking mode counter Na, to determine cooking mode in the zone.For example showing with white under the state of word " high-temperature steam ", dial 127 is operated when being pressed into the position from off position, determine to write down in the zone cooking mode " high-temperature steam " at cooking mode, showing with white under the state of word " Low Temperature Steam ", dial 127 is operated when being pressed into the position from off position, determines to write down in the zone cooking mode " Low Temperature Steam " at cooking mode.

When CPU150 determines cooking mode at step S8, detect cooking menu from the dishes forms data of ROM151, and in display 133, shows cooking menu selection picture according to the result that detects of cooking menu corresponding to definite result of cooking mode at step S9.This cooking menu selection picture comprises a plurality of cooking menus corresponding to the selection result of cooking mode, it is arranged by multiple situation at above-below direction with literal, show one that is predetermined in a plurality of cooking menus with white in step S9, remaining uses black display.For example under definite state of cooking mode " Low Temperature Steam ", select cooking menu " to soak crowndaisy chrysanthemum " and " simmering cabbage and scallop ", and, " simmer cabbage and scallop " at remaining cooking menu of bottom with black display with the white cooking menu that is predetermined " immersion crowndaisy chrysanthemum " that is presented at top.

When CPU150 shows that at step S9 cooking menu is selected picture, judge whether pulse signal from encoder 129 at step S10.When judgement has pulse signal from encoder 129, advance to step S11, and in dishes single counter Nb, add unit value.Then, advance to step S12, and show a word, remaining word black display with white corresponding to the addition results of dishes single counter Nb in a plurality of cooking menus that in display 133, show.That is to say, when cooking menu is selected under the show state of picture rotating operation dial 127, show a word, remaining word black display with white corresponding to the operational ton of dial 127 in a plurality of cooking menus.For example, under the state of the cooking menu that has shown " Low Temperature Steam " usefulness " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop ", by rotating operation dial 127, make color of " soaking crowndaisy chrysanthemum " and the color of " simmering cabbage and scallop " alternately change over white.

When CPU150 judges not pulse signal from encoder 129 at step S10, judge whether from the signal of opening of determining switch 130 at step S13.When judgement have from determine switch 130 open signal the time, advance to step S14, and determine that at the cooking menu of RAM152 record is corresponding to the cooking menu of the present measurement result of dishes single counter Nb, to determine cooking menu in the zone.That is to say, select under the show state of picture, operate when being pressed into the position from off position, determine the cooking menu that record shows with white in the zone, and determine the cooking menu that shows with white at cooking menu when dial 127 at cooking menu.

When CPU150 determines cooking menu in step S14, judge whether from the signal of opening that begins switch 131 at step S15.When judgement have from the beginning switch 131 open signal the time, advance to step S16, from the cooking menu of RAM152 determine the zone detect the cooking menu the record result.Then, detect corresponding to the cooking program that detects the result of cooking menu from ROM151, in the processing that detect result of step S18 execution corresponding to cooking program at step S17.

1. about cooking menu " warm milk " and " scalding heat "

CPU150 carries out general microwave treatment when selecting microwave with cooking menu " warm milk " and " scalding heat " respectively.This microwave treatment is set the output of magnetron 116 and the final temperature of gratin respectively corresponding to the selection result of cooking menu, by according to corresponding to the output running magnetron 116 of setting the result, microwave is shone in the cooking room 103 by waveguide pipe 115 from magnetron 116, when magnetron 116 runnings, make antenna motor 117 continue rotary manipulation with certain speed along a certain direction.CPU150 can will compare with the setting result of final temperature from the food temperature signal of food temperature sensor 146 outputs when magnetron 116 turns round, and detect setting that the result reaches final temperature as a result the time what judge the food temperature signal, by being shut down, magnetron 116 and antenna motor 117 finish cooking.

2. about cooking menu " apple pie " and " cake "

CPU150 carries out general baking and handles when selecting baking with cooking menu " apple pie " and " cake " respectively.This baking is handled corresponding to the selection result of cooking menu and is set cook temperature and final temperature respectively, and makes fan electromotor 111 and external heater 114 runnings respectively.This external heater 114 is opened and controls with closing, so that making the internal temperature signal of temperature sensor 145 outputs internally draws close to the setting result of cook temperature, when externally heater 114 turned round, fan electromotor 111 remained in operation with certain speed along a certain direction.Compare with the setting result of final temperature from the food temperature signal of food temperature sensor 146 outputs when CPU150 can be with 114 runnings of heater externally, and detect setting that the result reaches final temperature as a result the time what judge the food temperature signal, by being shut down, fan electromotor 111 and external heater 114 finish cooking.

3. about cooking menu " roasting whole chicken " and " hamburger "

CPU150 carries out general high-temperature steam and handles when selecting high-temperature steam with cooking menu " roasting whole chicken " and " hamburger " respectively.Figure 24 shows the details that this high-temperature steam is handled, and CPU150 judges whether the signal of opening from door switch 105 at step S21.When judgement have from door switch 105 open signal the time, advance to step S22, the flag F 1 of RAM152 and the flag F 2 of RAM152 are reset to off status respectively.Then, set the feedwater time, set cook temperature, set final temperature at step S25 at step S24 at step S23.This feedwater time～final temperature is respectively to set like this, promptly from selecting corresponding to the selection result of cooking menu in a plurality of options of record in advance, when CPU150 sets final temperature at step S25, advances to step S26 among ROM151.

CPU150 when advancing to step S26, make fan electromotor 111 along a certain direction with the certain speed entry into service.Then, advance to step S27, and make external heater 114 with the operation mode entry into service of record in advance in ROM151.This operation mode can apply the driving power of not carrying out FEEDBACK CONTROL to external heater 114, and cooking room 103 makes fan electromotor 111 and external heater 114 runnings respectively, utilizes hot blast to heat thus.

When CPU150 makes external heater 114 entrys into service at step S27, compare with the preheat temperature that in ROM151, writes down in advance at the internal temperature signal of step S28 temperature sensor 145 outputs internally.This preheat temperature is set in all low definite value of using than high-temperature steam (for example 100 ℃) of all cook temperatures, CPU150 is when step S28 judges detecting the result and reaching preheat temperature of internal temperature signal then, just make steam heater 122 according to the operation mode entry into service of record in advance in ROM151 at step S29, steam heater 123 is according to the operation mode entry into service of record in advance in ROM151 under step S30 makes.These two kinds of operation modes all can apply the driving power that does not carry out FEEDBACK CONTROL, and steam chest 121 makes steam heater 122 and following steam heater 123 corresponding to the operation mode running respectively, heats up thus.

When CPU150 makes steam heater 123 entrys into service down at step S30, detect the set condition of flag F 1 at step S31.When judge mark F1 is reset to off status, advance to step S32, will compare with the evaporating temperature that among ROM151, writes down in advance from the spin manifold temperature signal of vapor (steam) temperature sensor 147 outputs.This evaporating temperature is set in a definite value (for example 120 ℃) that makes the instant water evaporation that is injected in the steam chest 121, CPU150 begins steam chest 121 is carried out temperature control at step S33 when judging the detecting the result and reach evaporating temperature of spin manifold temperature signal then.This temperature control is closed steam heater 122 and following steam heater 123 by opening simultaneously to close, the result that detects of spin manifold temperature signal is drawn close to evaporating temperature, CPU150 begins steam chest 121 is carried out temperature when control at step S33, at step S34 with flag F 1 state of resetting to out.

CPU150 is reset to opening state or when step S32 judges detecting the result and not reaching evaporating temperature of spin manifold temperature signal, at the set condition of step S35 judge mark F2 at step S31 judge mark F1.When judge mark F2 is reset to off status, advance to step S36, the internal temperature signal of temperature sensor 145 outputs is internally compared with the setting result of cook temperature.All cook temperatures that this high-temperature steam is used are all set 100 ℃ of boiling points that are higher than water for, therefore judge that at CPU150 the setting that the result reaches cook temperature of detecting of internal temperature signal advances to step S37 as a result the time, begins external heater 114 is carried out FEEDBACK CONTROL.This FEEDBACK CONTROL is that the result that detects at the internal temperature signal opens when the setting result of cook temperature draws close and closes external heater 114, CPU150 step S37 during to external heater 114 beginning FEEDBACK CONTROL at step S38 with flag F 2 states of resetting to out.

CPU150 the FEEDBACK CONTROL of beginning external heater 114, on steam heater 122 FEEDBACK CONTROL, down during the FEEDBACK CONTROL of steam heater 123, whether be reset to opening state at step S39 judge mark F1 and flag F 2.Advance to step S40 in this case, entry into service pump motor 120.After 120 of pump motors have turned round the feedwater time that feed pump 120 sets, the intermittent working that turns round repeatedly after making this pump motor 120 through the certain dwell time that writes down in advance in ROM151, CPU150 advances to step S41 when step S40 entry into service pump motor 120.In the operating condition of this pump motor 120, in steam chest 121, inject a certain amount of water from feed pump 119 intermittently at a certain time interval, by being contacted with the inner surface of steam chest 121, water makes its flash evapn.This steam is ejected in the cooking room 103 with certain steam pressure in steam chest 121, and the air stream that generates along with circulating fan 110 circulates in cooking room 103.This steam heats by utilizing external heater 114, becomes to surpass 100 ℃ superheated steam, thus the gratin in the cooking chamber 103.

CPU150 will compare with the setting result of final temperature from the food temperature signal of food temperature sensor 146 outputs when advancing to step S41.Detect setting that the result reaches final temperature as a result the time when what judge the food temperature signal at this, advance to step S42, and finish cooking by fan electromotor 111, external heater 114, pump motor 120, last steam heater 122 and following steam heater 123 are shut down.

4. " soak crowndaisy chrysanthemum " and " simmering cabbage and scallop " about cooking menu

CPU150 carries out general Low Temperature Steam and handles when the cooking menu of selecting Low Temperature Steam to use respectively " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop ".This cooking menu " soaks crowndaisy chrysanthemum " and " simmering cabbage and scallop " all is equivalent to specific cooking menu, and Figure 25 and 26 shows the details that this Low Temperature Steam is handled respectively.This Low Temperature Steam is handled and is comprised the steam cooking that makes the vapoury about 40 ℃ internal temperature of maintenance packages in the cooking room 103 and microwave cooked to cooking room 103 internal radiation microwaves of carrying out in order, the steam cooking is equivalent to the 1st cooking stroke, microwave cooked the 2nd cooking stroke that is equivalent to.Perhaps, this steam cooking preferably makes the interior environment of cooking room become the state of saturated vapor.

CPU150 judges whether the signal of opening from door switch 105 at the step S51 of Figure 25.Exported when opening signal when judging at this, advanced to step S52, and the flag F 0 of RAM152 is reset to off status from door switch 105.

When CPU150 resets flag F 0 at step S52, set feedwater time T a, set steam cooking time T b, set microwave cooked time T c at step S55 at step S54 at step S53.Then, set cook temperature ta, set limit temperature t b at step S57 at step S56.This feedwater time T a～limit temperature t b sets like this, promptly selects corresponding to the selection result of cooking menu from the Low Temperature Steam deal with data of ROM151, and CPU150 advances to step S58 when step S57 sets limit temperature t b.This feedwater time T a, steam cooking time T b, cook temperature ta and limit temperature t b are equivalent to the 1st cooking conditions, and microwave cooked time T c is equivalent to the 2nd cooking conditions.

CPU150 makes steam heater 122 according to the preheating operation mode entry into service of record in advance in ROM151 when advancing to step S58.Then, advance to step S59, make down steam heater 123 according to the preheating operation mode entry into service of record in advance in ROM151.The operation mode that these two preheatings are used all can apply the driving power that does not carry out FEEDBACK CONTROL to object, and steam chest 121 is by heating with the operation mode heating according to last steam heater 122 and the preheating separately of following steam heater 123.

CPU150 during steam heater 123, will compare with evaporating temperature (for example 120 ℃) from the spin manifold temperature signal of vapor (steam) temperature sensor 147 outputs at step S60 under step S59 entry into service.When judging the detecting the result and reach evaporating temperature of spin manifold temperature signal, advance to step S61, the following steam heater 123 that the specified output that shuts down is less.Then, advance to step S62, begin the bigger last steam heater 122 of specified output is carried out FEEDBACK CONTROL.This FEEDBACK CONTROL goes up steam heater 122 by opening control with closing, so that the result that detects of spin manifold temperature signal draws close to evaporating temperature, reach evaporating temperature up to steam chest 121, just use to go up steam heater 122 and following steam heater 123 and heat together, keep this evaporating temperature with reaching after the evaporating temperature above steam heater 122 and be main body.

CPU150 step S62 begin on steam heater 122 carry out FEEDBACK CONTROL, at step S63 entry into service pump motor 120.After 120 of pump motors have turned round the feedwater time T a that pump motor 120 sets, the intermittent working that turns round repeatedly after making this pump motor 120 through the certain dwell time that in ROM151, writes down in advance, in the operating condition of this pump motor 120, in steam chest 121, inject a certain amount of water from feed pump 119 intermittently at a certain time interval, and make its flash evapn, in steam chest 121, be ejected in the cooking room 103 then with certain steam pressure.

CPU150 when step S63 entry into service pump motor 120, step S64 make fan electromotor 111 along a certain direction with the certain speed entry into service, at step S65 entry into service external heater 114.This external heater 114 can apply the driving power that does not carry out FEEDBACK CONTROL according to the operation mode of record running in advance in ROM1151 to external heater 114.Under this fan electromotor 111 and external heater 114 operating condition separately, air and steam in the cooking room 103 are heated simultaneously, thereby the temperature in the cooking room 103 is raise.

CPU150 compares with the setting result of cook temperature ta at the internal temperature signal of step S66 temperature sensor 145 outputs internally when step S65 entry into service external heater 114.Detect setting that the result reaches cook temperature ta as a result the time when what judge the internal temperature signal at this, advance to step S67, the external heater 114 beginning steam cookings are handled by shutting down.At state that this external heater 114 shuts down and under the state of cooking room 103 internal fan motors 111 runnings, steam is injected intermittently, along with air stream circulates cooking room 103 in together.

When CPU150 shuts down external heater 114 at step S67, timer T is reset to " 0 ", and the measured value of timer T is compared with the setting result of steam cooking time T b at step S69 at step S68.This timer T interrupts the result of processing with each unit value addition at CPU150 by the time of regularly starting by the interval sometime that is predetermined, and it is represented according to being warmed up to cook temperature ta institute elapsed time in the cooking room 103.

When CPU150 when step S69 judges that setting that the measured value of timer T do not reach steam cooking time T b as a result, compare with the setting result of cook temperature ta at the internal temperature signal of step S70 temperature sensor 145 outputs internally.When this judgement " internal temperature signal 〉=cook temperature ta+ revises temperature Δ t (for example 2 ℃) ", advance to step S71, interrupt feedwater action by the intermittent working that stops pump motor 120 to steam chest 121.This correction temperature Δ t is the constant that writes down in advance in ROM151, under the state of the intermittent working that has stopped pump motor 120, by interrupting injecting action from steam chest 121 to the steam of cooking room 103, can make the temperature decline in the cooking room 103.

CPU150 judges that at step S70 " internal temperature signal 〉=cook temperature ta+ revises temperature Δ t " is fictitious time, at step S72 the result that detects of internal temperature signal is compared with the setting result of cook temperature ta and limit temperature t b respectively.When this judgement " limits alternating temperature degree tb≤internal temperature signal≤cook temperature ta-to revise temperature Δ t ", advance to step S73, the set condition of judge mark F0.When judging that this flag F 0 is reset to off status, advance to step S74, the entry into service pump motor 120 once more.The running once more of pump motor 120 is behind 120 of pump motors have been turned round the feedwater time T a that pump motor 120 sets, 120 certain hours that write down in advance in ROM151 of pump motor are shut down, to with step S63 the same terms under begin, circulate by making in the steam cooking room 103 that externally heater 114 does not turn round, can make the temperature range that maintains the setting result who comprises cook temperature ta in the cooking room 103, i.e. " cook temperature ta-revises temperature Δ t～cook temperature ta+ and revises temperature Δ t ".

When the detecting the result and drop to limit temperature t b terminal of internal temperature signal, CPU150 judges that at step S72 " limit temperature t b≤internal temperature signal≤cook temperature ta-revises temperature Δ t " be vacation.At this moment advance to step S80, make external heater 114 according to the operation mode entry into service of record in advance in ROM151.The running of this external heater 114 can apply the driving power that does not carry out FEEDBACK CONTROL, and CPU150 advances to step S81, the last steam heater 122 that the specified output that shuts down is bigger when step S80 entry into service external heater 114.Then, advance to step S82, the following steam heater 123 that the specified output of entry into service is less.This time steam heater 123 turns round and becomes to make the spin manifold temperature signal from vapor (steam) temperature sensor 147 output to draw close to evaporating temperature, and CPU150 begins to advance to when steam heater 123 carries out FEEDBACK CONTROL down step S83 at step S82 then.

CPU150 deducts the correction time Δ T that writes down in advance by the setting result from feedwater time T a and revises feedwater time T a among ROM151 when advancing to step S83.Then, advance to step S84, with flag F 0 state of resetting to out.That is to say, the internal temperature of cooking room 103 drops to can not increase ascorbic limit temperature t b when following, the last steam heater 122 that the specified output that shuts down is bigger, the following steam heater 123 that the specified output of individual operation is less, by in steam chest 121, injecting the low amounts of water of comparing with the common state below internal temperature does not drop to limit temperature t b from feed pump 119, can be in the steam chest 121 to cooking room 103 in the injection small amount of steam.Under this state, make external heater 114 running, and, the temperature in the cooking room 103 are raise from currency by utilizing these external heater 114 heating to be injected into steam in the cooking room 103 from steam chest 121.

The setting that the temperature of CPU150 in cooking room 103 rises to limit temperature t b is judged " limit temperature t b≤internal temperature signal≤cook temperature ta-revises temperature Δ t " as a result the time at step S72.Then, be reset when opening state, make feedwater time T a return to the setting result at initial stage by in the subtraction result of feedwater time T a, adding correction time Δ T at step S75 at step S73 judge mark F0.Then, at the step S76 external heater 114 that shuts down, at the step S77 less following steam heater 123 of specified output that shuts down, the specified output of step S78 entry into service bigger on steam heater 122.Upward steam heater 122 FEEDBACK CONTROL one-tenth makes from the spin manifold temperature signal of vapor (steam) temperature sensor 147 outputs and draws close to evaporating temperature, CPU150 step S78 begin on steam heater 122 advance to step S79 when carrying out FEEDBACK CONTROL, flag F 0 is reset to off status.That is to say, when the internal temperature of cooking room 103 returns to common state more than the limit temperature t b, by steam is circulated in the cooking room 103 of external heater 114 that do not turn round, can make internal temperature maintain temperature range " cook temperature ta-revises temperature Δ t～cook temperature ta+ and revises temperature Δ t ".

When CPU150 judges that at step S69 setting that the measured value of timer T reaches steam cooking time T b is as a result, the step S85 of Figure 26 by the fan electromotor 111 that shuts down respectively, external heater 114, pump motor 120, on steam heater 122 and down steam heater 123 finish the steam cooking and handle.Then,, report the steam cooking to the user and finish, advance to step S87 in pipe the time (for example 3 seconds) of step S86 by making siren 144 pipe and in ROM151, write down in advance.

CPU150 detects cooking guide corresponding to the setting result of cooking menu from the cooking guidance data of ROM151 when advancing to step S87.Then, advance to step S88, in display 133, show the result that detects of cooking guide.As shown in figure 19, this cooking guide can be reported gratin to the user and finish the method for disposal of back to gratin in steam cooking processing, and CPU150 advances to step S89 when the step S88 of Figure 26 shows cooking guide.

CPU150 makes door switch 105 keep closing when advancing to step S89.When this decision gate switch 105 is the pass, advancing to step S90, door switch 105 is stayed open.That is to say, the user is operable to open mode with door 104 from closed condition, and after in cooking room 103, taking out gratin, apply corresponding to the disposal of cooking guide to gratin, then gratin is put back into and makes door 104 operate closed condition in the cooking room 103 from open mode, follow CPU150 sequentially closing of decision gate switch 105 and opening of door switch 105, advance to step S91 from step S89 and step S90.

When CPU150 advances to step S91, beginning switch 131 is stayed open.When judging that at this beginning switch 131 when opening, advances to step S92, timer T is reset to " 0 ".Then, advance to step S93, begin the warm cooking by entry into service magnetron 116 and handle.This magnetron 116 turns round with certain power output such as the 600W that writes down in advance in ROM151, and CPU150 advances to step S94 when at step S93 entry into service magnetron 116, and the measured value of timer T is compared with the setting result of microwave cooked time T c.The setting that reaches microwave cooked time T c when the measured value of judging timer T at this advances to step S95 as a result the time, finishes the warm cooking by the magnetron 116 that shuts down and handles.In addition, step S68～step S85 is equivalent to the 1st cooking stroke, and step S92～step S95 is equivalent to the 2nd cooking stroke.

5. cancellation is handled

CPU150 starts cancellation when cancellation switch 132 is operated handles.It is all high that the priority of setting for than main processing, microwave treatment, baking processing, high-temperature steam are handled, Low Temperature Steam is handled and the time interruption is handled is handled in this cancellation, when operation cancellation switch 132, carrying out which all Halfway Stopping processing of execution at present in the main processing～time interruption processing, starting and cancel processing.

When CPU150 started the cancellation processing, all that remove among the RAM152 were set results, and make pointer be reset to initial value.This initial value is used to carry out the step S1 of Figure 23, for example make in door 104 standbies that stay open, make in the standbies that door 104 keeps closing at the step S90 of Figure 26 at the step S89 of Figure 26, when the step S91 of Figure 26 keeps in the standby of operation of beginning switch 130 respectively operation cancellation switch 132, do not carry out the warm cooking that drives magnetron 116 and handle, but the Halfway Stopping Low Temperature Steam is handled.

According to the foregoing description 2, can obtain following effect.

When selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, automatically set feedwater time T a, steam cooking time T b, microwave cooked time T c, cook temperature ta, limit temperature t b respectively, and carry out the steam cooking according to the setting result of feedwater time T a, steam cooking time T b, cook temperature ta, limit temperature t b, carry out the warm cooking according to the setting result of microwave cooked time T c.Therefore, can be in the state that the vegetables that are suitable for the steam cooking eat as warm vegetables, do not import new cooking conditions and heat.When selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, can stop to begin the warm cooking after the steam cooking.Therefore, in the cooking, can utilize the microwave in the warm cooking to heat attached to the dew on the door 104, and can reduce microwave in warm when cooking the worry from the internal leakage of cooking room 103 to the outside.

When selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, as the culinary cooking conditions of steam, can set the temperature range " cook temperature ta-revises temperature Δ t～cook temperature ta+ and revises temperature Δ t " that is predetermined according to the mode that the ascorbic increment rate that comprises gratin becomes maximum maximum ta, owing to controlled the operating condition of pump motor 120, make the signal of temperature sensor 145 outputs internally draw close, therefore can utilize the steam cooking raising significantly ascorbic amount of vegetables to temperature range " cook temperature ta-revises temperature Δ t～cook temperature ta+ and revises temperature Δ t ".

When selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, as the culinary cooking conditions of steam, can become maximum mode according to the ascorbic increment rate that makes gratin and set the steam cooking time T b that is predetermined, setting result corresponding to steam cooking time T b carries out this steam cooking then, therefore also can utilize the steam cooking to handle and improve the ascorbic amount of vegetables significantly.When selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, as warm culinary cooking conditions, can compare higher mode with uncooked state according to the ascorbic amount that makes gratin and set the microwave cooked time T c that is predetermined, setting result corresponding to microwave cooked time T c carries out the warm cooking then, therefore can heat to compare with the state of giving birth under the higher vegetables of the ascorbic amount state edible as warm vegetables suitable.

When stopping steam cooking processing,, can report the steam cooking to the user and stop by before the warm cooking of beginning, siren 144 being piped.Therefore, the user can know that from the tweeting sound of siren 144 the steam cooking stops, implement in advance to gratin and prepare so just can take out gratins in the cooking room 103, prevent that thus gratin is in the state of the steam cooking always and is not being placed warmly.Owing to be just to begin the warm cooking at the steam cooking stopping back operation beginning switch 131, therefore the user can take out gratin in cooking room 103, according to oneself rhythm after gratin is implemented cut-and-dried operation, begin the warm cooking according to oneself rhythm.When from specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop ", selecting corresponding to the content of operation of dial 127, owing in display 133, shown the cooking guide of selection result, can go especially to consult therefore that written matter such as specification just makes that cooking menu " soaks crowndaisy chrysanthemum " and " stewing cabbage and scallop " corresponding to cooking menu.

In the foregoing description 2, the CPU150 of control loop 134 also can constitute according to the step S90 of Figure 26 detect from door switch 105 outputs open signal the time, do not wait for the signal of opening from beginning switch 131, at step S92 timer T is reset to " 0 ", begin the warm cooking at step S93 then and handle.

(embodiment 3)

Figure 27 show the Low Temperature Steam of replacing Figure 26 handle in control loop 134 CPU150 and the Low Temperature Steam carried out is handled, when CPU150 when the step S69 of Figure 25 judges that setting that the measured value of timer T reaches steam cooking time T b as a result, advance to the step S85 of Figure 27, stop the steam cooking and handle.Then, siren 144 is piped,, begin to operate magnetron 116 at step S93 at step S92 replacement timer T at step S86.

According to the foregoing description 3, can obtain following effect.

Owing to, just automatically begin the warm cooking, and do not carry out the cooking different with the warm cooking when stopping steam when cooking, so the warm cooking that can be directly always increases to the ascorbic amount of gratin.And, because the steam that has begun to inject in the steam cooking in cooking room 103 is retained in the warm cooking in the cooking room 103 always, therefore can prevent that gratin is owing to the warm cooking is dried.

In the foregoing description 3, also can begin the warm cooking by in the process of carrying out the steam cooking, beginning to operate magnetron 116.

In the foregoing description 3, also can begin the warm cooking by when stopping the steam cooking, beginning to operate magnetron 116.

(embodiment 4)

As shown in figure 28, the back plate of the left plate of interior case 102 and interior case 102 is formed with the steam outlet 151 that is made of a plurality of through holes respectively.These two steam outlets 151 are different part split shed on fan drum 109 inside respectively, is discharged to a part of hot blasts in the cooking room 103 are discharged to outer container 101 respectively by the space between interior case 102 and the outer container 101 from two steam outlets 151 outside from the exhaust outlet 113 of interior case 102.

Figure 29 show the Low Temperature Steam of replacing Figure 26 handle in control loop 134 CPU150 and the Low Temperature Steam carried out is handled, when CPU150 judges that at step S91 beginning switch 131 advances to step S96 when opening, and is reset to " 0 " with timer T then.Then, step S97 make fan electromotor 111 along a direction with a certain speed entry into service, then step S98 with the measured value of timer T and in ROM151 in advance the storage evacuation time (for example 30 seconds) compare.When these fan electromotor 111 runnings,, when therefore in cooking room 103, going back entrained steam, this steam can be discharged to the outside of outer container 101 respectively from two steam outlets 151 under the closed condition of door 104 because circulating fan 110 is to rotate.Exhaust apparatus is made of circulating fan 110, fan electromotor 111 and two steam outlets 151, and fan electromotor 111 is equivalent to the drive source of exhaust apparatus.

When CPU150 judges that at step S98 the measured value of timer T reaches evacuation time, handle by the discharge of using fan motor 111 shut-down operations end steam at step S99.Then, at step S92 timer T is reset to " 0 ", the power in that step S93 begins to operate magnetron 116 output 600W to cooking room 103 internal radiation microwaves, reaches the setting result of cooking in microwave oven time T c up to the measured value of timer T.

According to the foregoing description 4, can obtain following effect.

By stopping steam cooking back entry into service fan electromotor 111, begin the pressure of the steam in the cooking room 103 is discharged to the pump-down process of cooking room 103 outsides, owing to after pump-down process stops, having begun the warm cooking, therefore can suppress gratin because the influence of the interior entrained steam of cooking room 103 adheres to each other.

In the foregoing description 4, the CPU150 of control loop 134 also can constitute, the step S90 of Figure 29 detect from door switch 105 output open signal the time, do not wait for that the signal of opening from beginning switch 131 resets to " 0 " at step S96 with timer T, then at step S97 entry into service fan electromotor 111.

In the foregoing description 4, can also constitute, change duration of runs of fan electromotor 111 corresponding to the setting result of cooking menu, with exhaust steams in cooking room 103.

In the foregoing description 4, also tabular baffle plate can be set, its can be respectively relative to two steam outlets 151 in the closed condition of steam off outlet 151 with open between the open mode of steam outlet 151 and move, two baffle plates are connected with general electric drive source respectively.Under the situation of this structure, also can close two steam outlets 151, and open two steam outlets 151 by in pump-down process, baffle plate being operated in open mode by in steam cooking processing and warm cooking processing, baffle plate being operated in closed condition respectively.

In the foregoing description 2-4, also the cook temperature ta of Low Temperature Steam deal with data can be set at the temperature that the vitamin C below the water boiling point temperature increases.For example under the situation of crowndaisy chrysanthemum, as shown in figure 21, owing to be in the scope of cook temperature " 37 ℃-47 ℃ ", to increase vitamin C, therefore under the situation of selecting cooking menu " to soak crowndaisy chrysanthemum ", operating condition that can control pump motor 120, with will from the output signal of internal temperature sensor 145 to the ascorbic temperature range that increases crowndaisy chrysanthemum promptly " cook temperature ta-revises temperature Δ t～cook temperature ta+ and revises temperature Δ t " draw close.Under the situation of this structure, because by vegetables are carried out the vitamin C that steam is cooked to be increased in the vegetables, and undertaken warm by vegetables are carried out the warm cooking, therefore in the proper states that can eat as warm vegetables, do not import new cooking conditions and heat the vegetables that vitamin C has increased near the state of giving birth to.

In above-mentioned each embodiment 2-4, also can when stopping the steam cooking, before beginning, the warm cooking in display 133, show information such as " the steam cooking stop ".

In above-mentioned each embodiment 2-4, also can constitute under the state that the steam cooking has stopped, being pressed into the position and beginning the warm cooking by dial 127 is operated from off position.

In above-mentioned each embodiment 2-4, also can be provided for the special operation key of selecting the special operation key of cooking mode and being used to select to cook menu respectively.

In above-mentioned each embodiment 2-4, also can use the pump motor 120 that can carry out speed control.Under the situation of this structure, rotary speed that can control pump motor 120, with when selecting specific cooking menu " soak crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, internal temperature signal that temperature sensor 145 internally exports is drawn close to the temperature range corresponding to the setting result of cook temperature ta.That is to say, also can constitute in the steam cooking is handled pump motor 120 is turned round continuously.

In above-mentioned each embodiment 2-4, also can be when selecting specific cooking menu " immersion crowndaisy chrysanthemum " and " simmering cabbage and scallop " respectively, control external heater 114 is so that the internal temperature signal of temperature sensor 145 output is internally drawn close to the temperature range corresponding to the setting result of cook temperature ta.

In above-mentioned each embodiment 2-4, the steam feed mechanism also can be made of 1 steam heater.

In above-mentioned each embodiment 2-4, as the structure that can in cooking room 103, supply with steam, the steam feed mechanism can not have conduit 124 especially, and for example its structure can be directly to supply with steam from the vaporium that is equivalent to the steam generating unit to cooking room inside.

In addition, the invention is not restricted to the foregoing description,, can implement various variations not breaking away from spirit of the present invention when implementing.

Claims (19)

1. a heating device is characterized in that, comprising:

The heating clamber that holds gratin;

Supply with the steam feedway of steam to this heating clamber;

Control the control device of this steam feedway;

This control device is controlled described steam feedway, is in the ascorbic set point of temperature band below 100 ℃ that increases gratin with a part of keeping gratin.

2. heating device as claimed in claim 1 is characterized in that, comprises the temperature-detecting device that detects the temperature in the heating clamber,

Control device control steam feedway is so that the temperature maintenance in the detected described heating clamber of described temperature-detecting device is at the temperature band of regulation.

3. heating device as claimed in claim 1 is characterized in that, in the stipulated time band that the vitamin C of gratin increases, control device reduces the quantity delivered of steam or stops the supply of steam.

4. heating device as claimed in claim 1 is characterized in that, the ascorbic amount that increases in gratin reaches near the maximum the time band, and control device reduces the quantity delivered of steam or stops the supply of steam.

5. heating device as claimed in claim 1 is characterized in that, also comprises the steam output mechanism that the steam in the heating clamber is discharged to the heating clamber outside,

In the stipulated time band that the vitamin C of gratin increases, control device is controlled this steam output mechanism, discharges the steam in the described heating clamber.

6. heating device as claimed in claim 1 is characterized in that, control device control steam feedway is so that keep roughly saturation state in the heating clamber.

7. heating device as claimed in claim 1 is characterized in that, control device control steam feedway becomes near the maximum temperature band so that the part of gratin maintains the ascorbic amount that increases with temperature.

8. heating device as claimed in claim 1 is characterized in that, corresponding to the kind of gratin, changes the set point of temperature band that vitamin C increases.

9. heating device as claimed in claim 1 is characterized in that, also comprises the magnetron to described cooking room internal radiation microwave,

Described control device is by turn round respectively described magnetron of control and described steam feed mechanism, carry out the 1st cooking stroke of the described steam feedway of control, so that maintaining with the state of giving birth to, the part of gratin compares the set point of temperature band below 100 ℃ that vitamin C increases

In the implementation of the 1st cooking stroke or when stopping or after stopping, by from described magnetron to described cooking room internal radiation microwave, carry out being placed on the 2nd cooking stroke of the gratin heating in the described cooking room.

10. heating device as claimed in claim 9 is characterized in that, described control device is set the 2nd cooking stroke required time for predetermined numerical value, so that it is higher than the state of giving birth to be placed on the ascorbic content of the gratin in the described cooking room.

11. heating device as claimed in claim 9 is characterized in that, described control device is not carried out other cooking ground beginning the 2nd cooking stroke outside the 2nd cooking stroke after the 1st cooking stroke stops.

12. heating device as claimed in claim 9 is characterized in that, also comprises to the user reporting the device for informing that the 1st cooking stroke stops,

Described control device begins the 2nd cooking stroke after stopping at the 1st cooking stroke, stops to use described device for informing to report the 1st cooking stroke to the user and stopping before back, the 2nd cooking stroke begin at the 1st cooking stroke.

13. heating device as claimed in claim 9 is characterized in that, comprises the operated key that can be begun being used to of operating the 2nd cooking stroke by the user,

Described control device is carried out the judgment processing of whether having operated described operated key after the 1st cooking stroke stops, and based on judging the operated situation of described operated key, begins the 2nd cooking stroke.

14. heating device as claimed in claim 9 is characterized in that, comprising:

Tape deck, it has write down a plurality of being used in advance and has carried out the cooking menu of cooking to being placed on gratin in the described cooking room, to predetermined specific cooking menu in a plurality of cooking menus, has write down the video data that is used to show cooking order;

The operated key that the user can operate is used for selecting cooking menu from described a plurality of cooking menus;

Cooking menu selecting apparatus is used for selecting cooking menu corresponding to the content of operation of operated key from described a plurality of cooking menus, and this device can detect when selecting described specific cooking menu and be used to show cooking video data in proper order;

Display, it shows the result that detects of video data,

Described control device is controlled in described magnetron corresponding with the selection result of cooking menu and the described steam feed mechanism by turning round, the form with corresponding to the selection result of cooking menu heats the gratin that is placed in the described cooking room.

15. heating device as claimed in claim 1 is characterized in that, comprises the exhaust apparatus with driven by power source of the steam in described cooking room is discharged in the outside of described cooking room,

Described control device begins the pump-down process of the steam in described cooking room is discharged in the outside of described cooking room by making the drive source entry into service of described exhaust apparatus after stopping at the 1st cooking stroke, and begins the 2nd cooking stroke after this pump-down process stops.

16. an ascorbic cooking method that increases gratin is comprising the heating clamber that holds gratin and is supplying with in the cooking device of steam feedway of steam to this heating clamber,

Gratin is placed official hour in the steam atmosphere of the set point of temperature band below 100 ℃, thereby increase the vitamin C of gratin.

17. the ascorbic cooking method of increase gratin as claimed in claim 16 is characterized in that, in the vitamin C that reaches gratin increases stipulated time during band, reduces to be placed with the amount of the steam in the heating clamber of gratin.

18. the ascorbic cooking method of increase gratin as claimed in claim 16 is characterized in that, in the cooking device that also comprises the steam output mechanism that the steam in the heating clamber is discharged to the heating clamber outside,

When being with, the steam in the heating clamber is discharged to the heating clamber outside by this steam output mechanism in the stipulated time that the vitamin C that reaches gratin increases.

19. the ascorbic cooking method of increase gratin as claimed in claim 16 is also comprising in the cooking device of the magnetron of heating clamber irradiating microwaves, it is characterized in that having:

The 1st stroke, it places official hour with gratin by utilizing the steam feedway in the steam atmosphere of the set point of temperature band below 100 ℃, the vitamin C of gratin is increased than the state of giving birth to;

Be positioned at described the 1st stroke the 2nd stroke afterwards, it when the living state of the vitamin C ratio of gratin is higher, stops magnetron by coming the cooking thing from described magnetron to described cooking room internal radiation microwave.

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