CN101204289A

CN101204289A - Heating cooker heating and cooking device

Info

Publication number: CN101204289A
Application number: CNA200710160416XA
Authority: CN
Inventors: 冈村嘉夫
Original assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2006-12-19
Filing date: 2007-12-19
Publication date: 2008-06-25
Also published as: JP2008151442A

Abstract

The present invention provides a heating cooker processing heat cooking to different cooking forms according to the heating condition having uncomplex constitution. The constitution makes hot wind circulate in the heating chamber, the second hot wind heater of the hot wind circulating apparatus for food heat is seried with the upper heater reset with the hot wind circulating apparatus respectively. Thus, we can use the hot wind circulating apparatus and the upper heater cooking, in this way, the hot wind circulating apparatus and the upper heater act at the same time, and prevent power consumption.

Description

Heating device

Technical field

The present invention relates to have and make the heating device of hot air circulation function of hot blast in the heating indoor circulation.

Background technology

In the past people just provide a kind of have make the hot air circulation function of hot blast in the heating indoor circulation, construct can be in this heating clamber carry out the hot blast cooking to food heating device.Adopt this thing, owing to directly provide hot blast to heating clamber, the temperature in the heating clamber can fast rise.In addition, in this heating device, also there is consideration can carry out different cooking forms, for example, can a higher level places the 1 grade of cooking of food, also can be placed on the higher level of this heating clamber and the 2 grades of cookings of subordinate to food at heating clamber.

, under the situation of carrying out the above-mentioned 1 grade of cooking cooking form different like this with the 2 grades of cookings, it is different adapting to the heating condition of cooking form separately.But, in 1 heating device, form with the corresponding different heating condition of the cooking form of being carried out and have any problem.Therefore, can't carry out the hot blast cooking under the heating condition of form being suitable for cooking separately, occur the uneven inappropriate situation of heating sometimes.

Therefore, in order to solve so unsuitable situation, various effort have been made.

The heating device of patent documentation 1 record is constructed handy wind direction board and is provided hot blast to heating clamber equably.The heating device of patent documentation 2 records is constructed to such an extent that can open and close air inlet from cooling air to heating clamber that introduce with flashboard, constructs to such an extent that can close air inlet when carrying out the hot blast cooking.

The heating device of patent documentation 3 records changes the wind direction that hot blast is provided to heating clamber with blind window.The heating device of patent documentation 4 record blows out in heating clamber on the wind path of hot blast and has flow distribution plate, and the hot blast direction that provides to heating clamber is provided periodically with flow distribution plate.

Patent documentation 1: special fair 7-111256 communique

Patent documentation 2: real fair 1-44966 communique

Patent documentation 3: the spy opens the 2003-185141 communique

Patent documentation 4: the spy opens the 2006-170579 communique

Adopt the heating device of patent documentation 1 record, by providing hot blast to heating clamber equably, it is uneven to suppress heating.In addition, adopt the heating device of patent documentation 2 records, close air inlet during the hot blast cooking, with this temperature in heating clamber is risen, it is uneven to suppress heating.But, use any heating device, all do not imagine in advance when carrying out different cooking forms, carry out the hot blast cooking under the heating condition of cooking form separately adapting to, if cooking form difference just might produce the unequal unsuitable situation of heating.In addition, in the heating device of patent documentation 2 records, also has the problem of complex structure.

Adopt the heating device of patent documentation 3 and patent documentation 4 records, can be changed to the direction that is suitable for cooking separately form to the hot blast direction that provides to heating clamber with blind window and flow distribution plate.But any heating device also all has the problem of complex structure.

In addition, above-mentioned any heating device owing to can't regulate wind direction and air quantity separately, also has the situation that can not form the heating condition that is suitable for cooking separately form.

Summary of the invention

The present invention realizes that In view of the foregoing its purpose is to provide a kind of structure uncomplicated, can make heating condition adapt to the heating device of the hot blast cooking of different cooking forms.

Heating device of the present invention has: the heating clamber of placing food; Make hot blast this heat indoor circulation with fan and hot blast with heater with the hot blast that is arranged on this heating clamber rear, heat the hot air circulation parts of above-mentioned food; Heater block with the above-mentioned food of heating that is arranged with this hot air circulation parts branch wherein, can constitute series connection with heater and above-mentioned heater block with the above-mentioned hot blast of above-mentioned hot air circulation parts.

Adopt heating device of the present invention, just can carry out the hot blast cooking of using hot air circulation parts and heater block.In this case, because heater block and hot air circulation unit Series are moved hot air circulation parts and heater block simultaneously, can also suppress power consumption.With this, except that only carrying out the hot blast cooking, can also use hot air circulation parts and other heater block ground to carry out the hot blast cooking smoothly with the hot air circulation parts, can make heating condition adapt to different cooking forms, carry out the hot blast cooking.

Description of drawings

Fig. 1 represents the part of the circuit structure of the heating device that the 1st embodiment of the present invention uses;

Fig. 2 is the front view of heating device of the present invention;

Fig. 3 is the front view of heating device of the present invention under the open mode;

Fig. 4 roughly represents the vertical section side view of the internal structure of heating device of the present invention;

Fig. 5 is a vertical section front view of roughly representing the internal structure of heating device of the present invention;

Fig. 6 is the vertical section front view of expression heating device steam generation container of the present invention and periphery thereof;

Fig. 7 is a front view of roughly representing the operating portion of heating device of the present invention;

Fig. 8 is the electrical structure block diagram of expression heating device of the present invention;

Fig. 9 is used for illustrating " the 2 grades of stoves " cooking in the heating device of the present invention;

Figure 10 is used for illustrating " the 1 grade of stove " cooking in the heating device of the present invention;

Figure 11 is used for illustrating " high-temperature steam " cooking that the 2nd embodiment of the present invention uses carries out with big heat;

Figure 12 is used for illustrating " high-temperature steam " cooking that the 2nd embodiment of the present invention uses carries out with little heat;

The explanation of symbol

1 micro-wave oven (heating device), 5 heating clambers, 8 vessel supporting parts,

9 jiaos of wares (placing the vessel that food is used), 11 heated air circulation devices (hot air circulation parts),

16 upper heaters (heater block), 17 hot blast fans, 18 hot blast heaters,

30 steam raising plants (heater block), 51 cooking method selection keys (alternative pack).

The specific embodiment

The 1st embodiment

Below, referring to figs. 1 to Figure 10 the 1st embodiment of the present invention is described.As shown in Figure 2, the outer container 2 that constitutes micro-wave oven 1 (being equivalent to heating device) housing forms rectangle, shank 3 is set below the bottom of this outer container 2.Be arranged on the hinge fraction link (not shown) of the door 4 of micro-wave oven 1 front by this micro-wave oven 1 preceding bottom, can rotate at above-below direction, switch is arranged on the heating clamber 5 in the outer container 2.In these 4 front upper places handle portion 6 is set, in the front lower place of door 4 setting operation portion 7.The concrete structure of this operating portion 7 will be described in the back.

Fig. 3 is the front view of micro-wave oven 1 under door 4 open modes.Heating clamber 5 forms the rectangle of front openings, and in the left wall 5a of this heating clamber 5 and the inside of right wall 5b, the vessel supporting part 8 of overshooting shape forms 2 grades up and down, and is opposite to one another.Carrying on the vessel supporting part 8 of these subtends that to place the vessel that food uses be angle ware (angle ware) 9 (with reference to figure 4 and Fig. 5).Can make this angle ware 9 on vessel supporting part 8 to front slide, it is taken out from heating clamber 5.

Fig. 4 is a profilograph of roughly representing micro-wave oven 1 internal structure.At the rear of heating clamber 5, Machine Room 10 is set, the central authorities in this Machine Room 10 are provided with heated air circulation device 11 (being equivalent to the hot air circulation parts).These heated air circulation device 11 concrete structure back also will be described.10 the top in the Machine Room is provided with the temperature sensor 12 of measuring temperature in the

heating clamber

5, and 10 bottom is provided with the magnetron 13 of generation microwave and the drive unit 14 of this magnetron 13 in the Machine Room.The waveguide 15 that this magnetron 13 extends by central authorities below heating clamber 5 can provide microwave to this heating clamber 5.

On the top of heating clamber 5, upper heater 16 (being equivalent to heater block) is set.This upper heater 16 is along the upper surface configuration of heating clamber 5, the specified 700W that is output as.In addition, in the bottom of heating clamber 5, the following heater (not shown) of specified output 700W is set.

Then, do an explanation with regard to the concrete structure of heated air circulation device 11.Heated air circulation device 11 is configured has hot blast fan 17 and hot blast heater 18.

Hot blast covers in the shell 19 with fan 17, at the rear side of this shell 19 fan motor 20 is installed.The rotating shaft of this fan motor 20 inserts in the shell 19, is installed in the central axle sleeve part of hot blast with fan 17.With this, fan motor 20 is constructed to such an extent that the driving hot blast rotates with fan 17.In addition, in the present embodiment, adopt centrifugal fan with fan 17 as hot blast.

Hot blast covers in the shell 19 with heater 18, is made of with 22 two sheathed heaters of heater with heater 21 and the 2nd hot blast the 1st hot blast.The 1st hot blast all disposes to such an extent that be enclosed in hot blast with around the fan 17 with heater 21 and the 2nd hot blast with 22, two of heaters.These the 1st hot blasts heater 21 and the 2nd hot blast heater 22, specified output difference separately, the 1st hot blast is 1000W with the specified output of heater 21, the 2nd hot blast is 1300W with the specified output of heater 22.

At the rear wall 5c of heating clamber 5, form the inlet scoop of forming by a plurality of apertures 23.This inlet scoop 23 towards the central authorities of hot blast with fan 17, rotates with fan 17 if fan motor drives hot blast, and then the air in the heating clamber 5 just sucks (with reference to arrow A the figure 4) from this inlet scoop 23.In addition, in the rear wall 5c of heating clamber 5, form the air outlet of forming by a plurality of apertures 24.This outlet 24, be configured in inlet scoop 23 around, fan motor 20 makes hot blast with fan 17 rotation, 23 inhaled airs are blown out to heating clamber 5 (with reference to arrow B Fig. 4) with heater 18 from air outlet 24 through hot blast from the inlet scoop.In addition, above-mentioned angle ware 9 is provided with from clipping inlet scoop 23 up and down.

Above-mentioned the 1st hot blast with heater 22 and upper heater 16, as shown in Figure 1, is connected to power supply 25 with heater the 21, the 2nd hot blast separately.Specifically, the 1st hot blast is connected between power line 25a, the 25b of power supply 25 through relay switch 26 with heater 21, and the 2nd hot blast is connected between power line 25a, the 25b of power supply 25 through relay switch 27 with heater 22.Upper heater 16 is connected between power line 25a, the 25b of power supply 25 through relay switch 28.In addition, the 2nd hot blast is connected with the common junction of upper heater 16 and relay switch 28 through relay switch 29 with the common junction of heater 22 and relay switch 27.Thereby the 2nd hot blast constitutes and can be together in series by closing relay switch 29 with heater 22 and upper heater 16.

As shown in Figure 5, the outside at the left wall 5a of heating clamber 5 is provided with steam raising plant 30 (being equivalent to heater block).This steam raising plant 30 is constructed to such an extent that have water tank 31 and a steam generation container 32.

Water tank 31 is configured in the space of heating clamber 5 downsides, is connected to steam generation container 32 through pipe 33.This water tank 31 has the size that can hold about 400ml water, constitutes with respect to outer container 2 and can load and unload.Feed pump 34 is set in the way of pipe 33, drives this feed pump 34, the water in the water tank 31 just supplies water to steam generation container 32.

As shown in Figure 6, steam generation container 32 is by constituting at the concave-shaped receptacle body 35 of heating clamber 5 (figure is the right side at Fig. 6) opening and the container cover 36 of its opening of covering, and the formation capacity is about the 32a of steam generating chamber of 12ml between vessel 35 and container cover 36.These vessels 35 and container cover 36 for example, are formed by die cast metal (for example, aluminium die casting).

In vessel 35, the steam heater of being made up of the clavate sheathed heater 37 is set.This steam is made of with 39 two of heaters with heater 38 and the 2nd steam the 1st steam up and down that is arranged on the 32a of steam generating chamber with heater 37.These the 1st steam use heater 38 and the 2nd steam with the terminal at the two ends of heater 39, give prominence to from vessel 35, are connected to power supply 25 separately.These the 1st steam heater 38 and the 2nd steam heater 39, specified output difference separately, the 1st steam is 200W with the specified output of heater 38, the 2nd steam is 300W with the specified output of heater 39.

Outer container 2 sides (is the left side at Fig. 6) at vessel 35 form admission port 40, connect above-mentioned pipe 33 (representing with two pecked lines in Fig. 6) in this admission port 40.In addition, in vessel 35, when the thermistor 41 (with reference to figure 8) that detects the temperature in the steam generation container 32 is installed, be integrally formed in the outstanding a plurality of heat release fins 43 of the 32a of steam generating chamber.These heat release fins 43, section form コ word shape (shape of a hoof) and T word shape, and its fore-end roughly is docked to the inside of container cover 36.

In container cover 36, laterally roughly equally spaced form 3 tubular aspises 42 side by side.These aspises 42 run through container cover 36, and its fore-end is outstanding to heating clamber 5 sides from container cover 36.On the other hand, in the left side wall 5a of heating clamber 5, between higher level's vessel supporting part 8 and subordinate's vessel supporting part 8, form 3 opening portions 44 corresponding to aspis 42.In addition,, coating member 45 is installed, is covered the periphery of opening portion 44 at the inner face of the left side wall 5a of heating clamber 5.In this

coating member

45,3 tubular steam ejiction openings 46 that are communicated with opening portion 44 are set.

Then, be arranged on the structure of the operating portion 7 of door 4 front lower places with reference to figure 7 explanations.In operating portion 7, start button 47, operation dial 48, temperature setting button 49, time set button 50, cooking method selection key 51 (being equivalent to alternative pack) and display part 52 are set.

Start button 47 is used for beginning the cooking of food under the condition of setting, operation dial 48 is used for selecting cooking content (for example, menu).Temperature is set the heating-up temperature that button 49 is used for setting food, and time set button 50 is used for setting the heat time heating time of food.Display part 52 is used for showing the menu of selection and the cooking time of setting etc.

Cooking method selection key 51 is divided into " microwave ", " high-temperature steam ", " 1 grade of stove ", " 2 grades of stoves " 4 zones, so that select these 4 cooking forms." microwave " zone is the cooking form of selecting with microwave heating of food." high-temperature steam " zone is the cooking form of selecting with hot blast and Steam Heating food." 1 grade of stove " zone is a cooking form of selecting to be placed on hot blast and radiant heat heating the food on heating clamber 5 upper stratas." 2 grades of stoves " zone is a cooking form of selecting to be placed on the hot blast heating heating clamber 5 bilevel food.

The electrical structure of micro-wave ovens 1 then, is described with reference to figure 8.The control device 53 that micro-wave oven 1 had is connected to aforesaid operations portion 7, temperature sensor 12, thermistor 41, power supply 25 etc.In the present embodiment, the input voltage of power supply 25 is about 100V.Operating portion 7 is the signal input control device 53 of selecting cooking form, menu etc.Temperature sensor 12 and thermistor 41 are separately temperature detecting signal input control device 53.

In addition, on control device 53, the drive unit 14 of connection magnetron 13, fan motor the 20, the 1st hot blast heater the 21, the 2nd hot blast heater 22, feed pump the 34, the 1st steam heater the 38, the 2nd steam heater 39, display part 52 etc.This control device 53 comprises the microcomputer that do not illustrate among the figure and relay drive unit etc. and constitutes, whole actions of control micro-wave oven 1.

Then, with regard to the work of the micro-wave oven 1 of said structure as an explanation.In the present embodiment, in above-mentioned 4 cooking forms, the situation of implementation " the 2 grades of stoves " cooking and the situation of cooking at " 1 grade of stove " are described.

(1) carries out the situation that " 2 grades of stoves " cooked

" the 2 grades of stoves " cooking is a carrying angle ware 9 on the higher level of heating clamber 5 and subordinate's vessel supporting part 8, and food is placed on 2 grades the cooking form up and down of heating clamber 5, for example, utilizes under the situations such as the bread of the cooking and cookie.

If the user selects " the 2 grades of stoves " cooking with cooking method selection key 51, operation start button 47, when then control device 53 usefulness fan motors 20 made hot blast with fan 17 rotations, shown in Fig. 9 (a), closing relay switch 27 made the 2nd hot blast move with heater 22.With this, shown in Fig. 9 (b), the hot blast that takes place from heated air circulation device 11 circulates (reference arrow B) in heating clamber 5, to be placed on heating clamber about in the of 52 grades food carry out cooking.

In this " 2 grades of stove " cooking, the 2nd hot blast moves with 1300W with the specified output of heater 22, and the 1st hot blast is failure to actuate with heater 21 and upper heater 16.In other words, under the situation of carrying out " the 2 grades of stoves " cooking, total output just the 2nd hot blast maintains below the 1500W of the maximum output that home-use micro-wave oven allows with the 1300W of heater 22.

(2) carry out the situation that " 1 grade of stove " cooked

" the 1 grade of stove " cooking, be vessel supporting part 8 carrying angle wares 9 heating clamber 5 higher levels, food only is configured in the cooking form that the higher level of heating clamber 5 carries out, for example, under the situation of cooking gratin (being coated with the cooking method of bread and cheese bits on the food) and pizza etc., utilizes.

The user selects " the 1 grade of stove " cooking with cooking method selection key 51, operation start button 47 is when just control device 53 makes hot blast with fan 17 rotation with fan motor 20, shown in Figure 10 (a), closing relay switch 26 makes the 1st hot blast move with heater 21.In addition, closing relay switch 29 makes the 2nd hot blast move with heater 22 and upper heater 16.With this, shown in Figure 10 (b), when the hot blast that takes place from heated air circulation device 11 circulates (referring to arrow B), offer heating clamber 5 (reference arrow C) heating clamber 5 in, the food that is placed on heating clamber 5 higher levels is carried out cooking from the radiant heat of upper heater 16 generations.

In this " 1 grade of stove " cooking, the 1st hot blast uses heater 21 with the specified output action of 1000W.In addition, the 2nd hot blast of series connection moves with about 16W with heater 22, and upper heater moves with about 300W.In other words, under the situation of carrying out " the 1 grade of stove " cooking, total output maintains below the maximum output 1500W that allows as home-use micro-wave oven.

As mentioned above, adopt present embodiment, carry out the hot blast cooking with heated air circulation device 11 and upper heater 16 and just become possibility.In this case, the 2nd hot blast that upper heater 16 is connected in series to heated air circulation device 11 so heated air circulation device 11 and upper heater 16 move simultaneously, can also suppress power consumption with heater 22.With this, except that only carrying out the hot blast cooking with heated air circulation device 11, can also successfully actually use heated air circulation device 11 and upper heater 16 to carry out the hot blast cooking, cooking form that can be different according to heating condition (" the 1 grade of stove " cooking and " the 2 grades of stoves " cooking) be carried out the hot blast cooking.

The above-mentioned hot blast cooking also can be carried out under the higher level's who only food is placed on heating clamber 5 state.But, under the sort of situation, the shortcoming of energy unnecessary consumption of subordinate's circulating air of heating clamber 5 is arranged.To this, adopt above-mentioned " the 1 grade of stove " cooking, the higher level of the heating clamber 5 of placing food, because the radiant heat of the about 300W that takes place from upper heater 16 efficiently is provided, can not meaningless consumed energy, food is carried out cooking.

In the present embodiment, owing to adopt the upper heater 16 that is arranged on heating clamber 5 tops as the heater block that is connected on the heated air circulation device 11, the surperficial necessary cooking is effective to special barbecue such as gratin and pizza.

At the left side wall 5a of heating clamber 5 and the inner face of right side wall 5b, owing to be provided with 2 grades of vessel supporting parts 8 that angle ware 9 usefulness that food uses are placed in carrying, any cooking form also can easily be carried out in " the 1 grade of stove " cooking and " the 2 grades of stoves " cooking.

Select only to cook and, can easily select to carry out in " the 1 grade of stove " cooking and " the 2 grades of stoves " cooking any owing to being provided with the cooking method selection key 51 that the hot blast of heated air circulation device 11 and upper heater 16 is cooked with the hot blast of heated air circulation device 11.

The 2nd embodiment

Then, with reference to Figure 11 and Figure 12 the 2nd embodiment of the present invention is described.Above-mentioned the 1st embodiment, expression adopts upper heater 16 as the heater block that is connected on the heated air circulation device 11, but the 2nd embodiment adopts steam raising plant 30 as the heater block that is connected on the heated air circulation device 11.Below, be omitted for the part explanation that above-mentioned the 1st embodiment is identical, different parts only is described.

Shown in Figure 11 (a), the 1st hot blast is connected between power line 25a, the 25b of power supply 25 through relay switch 26 with heater 21, and the 2nd hot blast is connected between power line 25a, the 25b of power supply 25 through relay switch 27 with heater 22.The 1st steam is connected between power line 25a, the 25b of power supply 25 through relay switch 61 with heater 38, and the 2nd steam is connected between power line 25a, the 25b of power supply 25 through relay switch 62 with heater 39.In addition, the 2nd hot blast is connected with the common junction of the 1st steam with heater 38 and relay switch 61 through relay switch 63 with the common junction of heater 22 and relay switch 27.Thereby closing relay switch 63 just can make the 2nd hot blast connect with heater 38 with heater 22 and the 1st steam.

Then, with regard to the work of the micro-wave oven 1 of said structure as an explanation.In the present embodiment, in the cooking form shown in above-mentioned the 1st embodiment, the situation of implementation " high-temperature steam " cooking is described.

" high-temperature steam " cooking is the cooking form with hot blast and Steam Heating food, and for example, it is roasting as to utilize under the situation of shinny chicken, hamburger etc. that juice is watered in the cooking.

The user selects " high-temperature steam " cooking by the cooking method selection key, operation start button 47, when control device 53 just makes hot blast with fan 17 rotations with fan motor 20, shown in Figure 11 (a), when closing relay switch 26 made the 1st hot blast with heater 21 actions, closing relay switch 62 made the 2nd steam move with heater 39.Closing relay switch 63 makes the 2nd hot blast move with heater 38 with heater 22 and the 1st steam in addition.With this, shown in Figure 11 (b), when the hot blast that takes place from heated air circulation device 11 circulates heating clamber 5 in (reference arrow B), provide from the steam of steam raising plant 30 generations to heating clamber 5 with

heater

38,39 with two steam.

In this state, the 1st hot blast specified output action of heater 21, the 2nd steam specified output action of heater 39 with 300W with 1000W.With the 23W action, the 1st steam moves with 150W with heater 38 the 2nd hot blast of series connection with heater 22 in addition.In other words, total output in this state maintains below the maximum output 1500W of home-use micro-wave oven permission.

Then, temperature and quantity of steam in the heating clamber 5 reach setting, just control device 53 shown in Figure 12 (a), is opened relay switch 63, make the 2nd hot blast stop action with heater 22 and the 1st steam with heater 38.Reduce the temperature of the hot blast (reference arrow B) of circulation in the heating clamber 5 and the quantity of steam that provides to heating clamber 5 is provided with this.

In this state, the 1st hot blast specified output action of heater, the 2nd steam specified output action of heater 39 with 300W with 1000W.On the other hand, the 1st hot blast is failure to actuate with heater 38 with heater 21 and the 1st steam.In other words, the total output under this state maintains below the maximum output of 1500W of home-use micro-wave oven permission.

As mentioned above, adopt present embodiment, can carry out the hot blast cooking with heated air circulation device 11 and steam raising plant 30.In this case, even the 2nd hot blast that the 1st steam of steam raising plant 30 is connected in series to heated air circulation device 11 with heater 38 makes the 2nd hot blast move simultaneously with heater 38 with heater 22 and the 1st steam with heater 22, can suppress power consumption.With this,, can carry out the cooking form of different heating condition according to each stage except that only carrying out successfully to carry out hot blast and cooking the hot blast cooking with heated air circulation device 11 and steam raising plant 30 with heated air circulation device 11.

" high-temperature steam " cooking also can make two hot blasts carry out full cooking operation with 21,22 and two steam of heater down with the state (state shown in Figure 11) of

heater

38,39 actions.But, under the sort of situation, have temperature in the heating clamber 5 and quantity of steam to reach the shortcoming that hot blast and steam energy unnecessary consumption take place behind the setting.To this, adopt present embodiment owing to can suppress temperature and quantity of steam that temperature in the heating clamber 5 and quantity of steam reach the hot blast that takes place behind the setting, can be under not meaningless catabiotic situation cooking food.

In addition, by suitable switching state shown in Figure 11 and state shown in Figure 12, can carry out than much various cooking in the past.

In the present embodiment, because the heater block that adopts the 1st steam of the steam raising plant 30 that steam takes place to connect with heated air circulation device 11 with heater 38 conducts, to the cooking that must at high temperature heat, the cooking that must remove grease unnecessary in the food and salinity etc. is effective.

Other embodiment

In addition, the invention is not restricted to the various embodiments described above, can produce following distortion and expansion.

Vessel supporting part 8 is not limited to 2 grades, for example, a plurality of levels such as 3 grades can be set also.

In the 1st embodiment, above-mentioned upper heater 16 can not connected with heated air circulation device 11 yet, and heater is connected with heated air circulation device 11 under the handle.In addition, above-mentioned the 1st steam can not connected with heated air circulation device 11 with heater 38 yet, and the 2nd steam is connected with heated air circulation device 11 with heater 39.

Also temperature be controlled in the heating clamber 5 that can detect according to temperature sensor, change the water yield that the feed pump 34 with steam raising plant 30 provides to the 32a of steam generating chamber.Adopt this structure, just can produce steam, just may cooperate the character of the food of being cooked and state to heat according to the temperature in the heating clamber 5.

Claims

1. heating device is characterized in that having:

Place the heating clamber of food;

The hot air circulation parts, it is arranged on the rear of this heating clamber, makes hot blast in this heating inner room circulation with fan and hot blast with heater with hot blast, heats above-mentioned food; With

Heater block that be provided with respectively with these hot air circulation parts, the above-mentioned food of heating;

Wherein, the mode that the above-mentioned hot blast of above-mentioned hot air circulation parts is connected with heater and above-mentioned heater block can be constituted.

2. the heating device of claim 1 record is characterized in that above-mentioned heater block is made of the heater on the top that is arranged on above-mentioned heating clamber.

3. the heating devices of claim 1 or 2 records is characterized in that, at the medial surface of above-mentioned heating clamber, the multistage vessel supporting part that the vessel that food uses are placed in carrying are set.

4. the heating device of claim 1 or 2 records is characterized in that having alternative pack, and the hot blast of selecting only to carry out with above-mentioned hot air circulation parts is cooked and cooked with the hot blast that above-mentioned hot air circulation parts and above-mentioned heater block carry out.

5. the heating device of claim 1 record is characterized in that, above-mentioned heater block is made of the steam raising plant that steam takes place.