CN101611732B - Heating cooking device - Google Patents
Heating cooking device Download PDFInfo
- Publication number
- CN101611732B CN101611732B CN2009101508424A CN200910150842A CN101611732B CN 101611732 B CN101611732 B CN 101611732B CN 2009101508424 A CN2009101508424 A CN 2009101508424A CN 200910150842 A CN200910150842 A CN 200910150842A CN 101611732 B CN101611732 B CN 101611732B
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- Prior art keywords
- fan
- cooking room
- hot blast
- blade part
- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/04—Stoves or ranges heated by electric energy with heat radiated directly from the heating element
- F24C7/046—Ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/006—Arrangements for circulation of cooling air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
- H05B6/1272—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with more than one coil or coil segment per heating zone
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Stoves And Ranges (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Baking, Grill, Roasting (AREA)
- Electric Ovens (AREA)
Abstract
The invention provides a heating cooking device capable of increasing the temperature in a cooking room to a target temperature in a target period of time. As a hot air fan (20) circulating hot air in the cooking room, a centrifugal turbofan respectively has a back shield plate (23) and a front shield plate (26) is used, and a bake oven heater is configured in a manner of surrounding the hot air fan (20), so the air is efficiently blown on the bake oven heater from the hot air fan (20). Therefore, the hot exchange rate at the bake oven heater is increased, so the temperature in a cooking room can be increased to a target temperature in a target period of time.
Description
Technical field
The present invention relates to possess heating device by the baking oven cooking function of hot blast cooking thing.
Background technology
In above-mentioned heating device, have the type of structure for stationary housing on the back plate at cooking room.This housing is the parts that form the fan room of space shape between the back plate of itself and cooking room, has taken in fan in fan room.This fan is connected on the rotating shaft of fan electromotor, rotation by fan under the running status of fan electromotor sucks enclosure interior with the air of cooking room inside from the air entry of the back plate of cooking room, and the air of enclosure interior is discharged to cooking room is inner from the exhaust outlet of the back plate of cooking room.Having heaters is taken in inside at this housing, the wind heating that heater is discharged fan in the inside of housing and hot blastization makes the culinary hot air circulation of baking oven in cooking room.
Patent documentation 1: the spy opens the 2003-232521 communique
Under the situation of above-mentioned heating device, use the centrifugal type fan as fan.This centrifugal type fan is to form at the fixing many blade parts of the peripheral part of main board portion, and many blade parts tilt with respect to the direction of rotation backward directions of fan respectively.In this fan in the past, can not dry to heater from fan efficiently, be warmed up to target temperature (for example 350 ℃) in being difficult in the object time (for example 30 minutes) cooking room.
Summary of the invention
The present invention carries out in view of above-mentioned thing, and its purpose is to provide a kind of can will be warmed up to the heating device of target temperature in the cooking room in the object time.
Heating device of the present invention is characterized in that: comprising: cooking room, its front are as the gateway of gratin and opening has back plate in an opposite side with this gateway; Door, it can be operated each other at closed state that the gateway of described cooking room is sealed and the open state that the gateway of described cooking room is open; Housing, it is positioned on the back plate that externally is arranged on described cooking room of described cooking room, forms the fan room of space shape between the back plate of itself and described cooking room; Suction inlet, the place ahead that it is positioned at described housing is arranged on the back plate of described cooking room, is used for the air of described cooking room inside is sucked the inside of described housing; Exhaust outlet, the place ahead that it is positioned at described housing is arranged on the back plate of described cooking room, is used for the air of the inside of described housing is discharged to the inside of described cooking room; The fan of centrifugal type, it is arranged on the inside of described housing, to a direction rotation air of the inside of described cooking room is attracted and the air of the inside of described housing is discharged to the inside of described cooking room from described exhaust outlet to the inside of described blower-casting from described air entry under the closed state of described door; Fan electromotor, it makes described fan rotate to a direction; And electric heater, it is arranged on the inside of described housing in the mode of surrounding described fan, the air heat that will discharge from described fan in the inside of described housing and hot blastization; Described fan has: main board portion, its by described fan electromotor to a direction rotary manipulation; The multi-disc blade part, it is set on the described main board portion, tilts towards the rear with respect to the direction of rotation of described main board portion; The rear shield plate, it covers the described multi-disc blade part each from the rear; Circular front protection cover plate, it covers the described multi-disc blade part each from the place ahead, have the peristome that is used to suck air.
As the fan that makes hot blast in the inner loop of cooking room, use the turbofan of the centrifugal type that has rear shield plate and front protection cover plate respectively, dispose heater in the mode of surrounding fan, so air is blown on the heater efficiently from fan.Therefore, the rate of heat exchange at heater place improves, so can in the object time target temperature be brought up in the inside of cooking room.
Description of drawings
Fig. 1 is the figure (figure that represents the outward appearance of micro-wave oven from the place ahead) of expression embodiment 1.
Fig. 2 is the cutaway view along the X2-X2 line of Fig. 1.
Fig. 3 is the figure that represents the internal structure of micro-wave oven under the state that Jiang Men removes from the place ahead.
Fig. 4 is the figure that represents the internal structure of housing from the place ahead.
Fig. 5 is the figure that represents the main board portion of hot blast fan from the place ahead.
Fig. 6 is the stereogram of the outward appearance of expression hot blast fan.
Fig. 7 is the stereogram of the outward appearance of expression hot blast fan under decomposing state.
Fig. 8 is the figure that represents the front protection cover plate from the place ahead.
Fig. 9 is the figure of dependency relation of the discharge coefficient of the boss ratio of expression front protection cover plate and hot blast fan.
Figure 10 (a) represents the figure of hot blast fan and oven heater from the place ahead, (b) be that Xb is to view.
Figure 11 is the figure of expression hot blast fan and oven heater position relation each other.
Figure 12 is the figure of the dependency relation of the air quantity of expression hot blast fan and static pressure.
Figure 13 is the figure that the timeliness of temperature in the expression stove changes.
Symbol description
3: cooking room
4: the gateway
5: door
14: housing
17: fan room
18: fan electromotor
20: hot blast fan (fan)
21: main board portion
23: the rear shield plate
24: blade part
26: the front protection cover plate
27: suction inlet (peristome)
28: oven heater (heater)
29: radiating tube
30: nichrome wire
31: fin
32: radiating part
34: hot blast air entry (air entry)
35: interior suction unit
36: outer suction unit
37: decoration element
38: go up hot blast exhaust outlet (exhaust outlet)
39: following hot blast exhaust outlet (exhaust outlet)
40: left hot blast exhaust outlet (exhaust outlet)
41: right hot blast exhaust outlet (exhaust outlet)
The specific embodiment
The outer container 1 of Fig. 1 forms the square shape of front openings, has left plate, right plate, base plate, top board and back plate.In the inside of this outer container 1, as shown in Figure 2, be fixed with the interior case 2 of the square shape of front openings.Should have left plate by interior case 2, right plate, base plate, top board and back plate, the left plate of the left plate of outer container 1 and interior case 2 is relative across the gap on left and right directions each other, the right plate of the right plate of outer container 1 and interior case 2 is relative across the gap on left and right directions each other, the base plate of the base plate of outer container 1 and interior case 2 is relative across the gap on above-below direction each other, the top board of the top board of outer container 1 and interior case 2 is relative across the gap on above-below direction each other, and the back plate of outer container 1 and the back plate of interior case 2 are relative across the gap on fore-and-aft direction each other.Should put into gratin by the front taking-up of interior case 2 by interior case 2, the inner space of interior case 2 is equivalent to be used for gratin is carried out the cooking room 3 of cooking, and the front of interior case 2 is equivalent to be used to take out the gateway 4 of putting into gratin.
On outer container 1, as shown in Figure 1, can be that the center is equipped with laterally long OBL 5 rotationally with the axle 6 of the level of bottom.This 5 window frame 8 that has window 7 and surround window 7 is that rotate at the center with axle 6 at the closed state that the gateway 4 of cooking room 3 is sealed from the place ahead and with the open states that the gateway 4 of cooking room 3 is opened each other.
This window of 57 is made of transparent glass plate, move into one's husband's household upon marriage 5 window 7 visual identifications of square tube in the past under the closed state of door 5 in the cooking room 3.In the back plate gap each other of the back plate of outer container 1 and interior case 2, as shown in Figure 2, be fixed with magnetron 9.The making operation of this magnetron 9 by the driving switch microwave that vibrates, from the microwave of magnetron 9 vibrations to cooking room 3 internal radiations.
On the right plate of the left plate of interior case 2 and interior case 2, as shown in Figure 3, be formed with top tray support 10 outstanding in cooking room 3 respectively.These two top tray supports 10 straight line respectively point to fore-and-aft direction, configuration relative to each other on left and right directions.The top tray support 10 of the left plate of interior case 2 can support the left part of the culinary angle of baking oven pallet 11 with loading and unloading, the top tray support 10 of the right plate of interior case 2 can support the right part of the culinary angle of baking oven pallet 11 with loading and unloading, and mounting is as the gratin of baking oven cooking object on the pallet 11 of the culinary angle of baking oven.
On the right plate of the left plate of interior case 2 and interior case 2, as shown in Figure 3, be formed with following tray supporter 12 outstanding in cooking room 3 respectively.These two following tray supporter 12 difference straight lines point to fore-and-aft direction, are disposing relative to each other on left and right directions than top tray support 10 low positions.The following tray supporter 12 of the left plate of interior case 2 can support the left part of the culinary angle of baking oven pallet 11 with loading and unloading, the following tray supporter 12 of the right plate of interior case 2 can support the right part of the culinary angle of baking oven pallet 11 with loading and unloading, in cooking room 3 on above-below direction mutually across with gap the 2 layers of culinary angle of baking oven pallet 11 being set with loading and unloading.
On the right plate of the left plate of interior case 2 and interior case 2, as shown in Figure 2, be formed with 2 outstanding in cooking room 3 barbecue tray supporters 13 respectively.Add up to totally 4 barbecue tray supporters 13 respectively straight lines point to fore-and-aft directions, be configured in the position higher than top tray support 10.Two barbecue tray supporters 13 of the left plate of interior case 2 can support the left part of the culinary angle of barbecue pallet respectively with loading and unloading, two barbecue tray supporters 13 of the right plate of interior case 2 can support the right part of roasting culinary angle pallet respectively with loading and unloading, in cooking room 3, be positioned at the culinary upper strata of baking oven angle pallet 11 above can be provided with loading and unloading and roast culinary angle pallet.The ceiling that is positioned at case 2 in this cooking room 3 is fixed with the barbecue heater, be arranged under the state in the cooking room 3 will roasting culinary angle pallet, when making the operation of barbecue heater, from the gratin illumination radiation heat of barbecue heater on the pallet of the culinary angle of barbecue, the gratin of roasting on the pallet of culinary angle is carried out cooking.
On the back plate of interior case 2, as shown in Figure 2, be fixed with housing 14.The side plate 16 that this housing 14 has vertical base plate 15 and surrounds base plate 15, base plate 15 forms square shape, side plate 16 form from after the width dimensions of above-below direction and the width dimensions of left and right directions become four big rib tubulars respectively forward.This housing 14 is incorporated in the back plate gap each other of the back plate of outer container 1 and interior case 2, and the front of housing 14 is formed with the fan room 17 of space shape each other by the back plate sealing of interior case 2 at the back plate of housing 14 and interior case 2.
On the base plate 15 of housing 14, as shown in Figure 2, be fixed with fan electromotor 18.This fan electromotor 18 is made of the capacitor induction machine, is configured in the outside of housing 14.This fan electromotor 18 has the rotating shaft 19 that points to fore-and-aft direction, and base plate 15 ground that the leading section of rotating shaft 19 connects housing 14 insert in the fan room 17.At the leading section of this rotating shaft 19, as shown in Figure 4, being positioned at fan room's 17 bindings has hot blast fan 20.This hot blast fan 20 is equivalent to fan, and fan electromotor 18 makes hot blast fan 20 rotate to equidirectional to predetermined direction rotation.This hot blast fan 20 is made of the turbofan of centrifugal type, and the detailed structure of hot blast fan 20 is as described below.
On the rotating shaft 19 of fan electromotor 18, as shown in Figure 5, be positioned at fan room 17 and do not link revolvably main board portion 21 is arranged.This main board portion 21 is by constituting with respect to the back plate of interior case 2 and the vertical respectively metallic plate of base plate 15 of housing 14, is formed with 8 rear shield plate junction surfaces 22 at the peripheral part of main board portion 21.These 8 rear shield plate junction surfaces 22 refer to from the part of the outstanding laterally triangle of main board portion 21, and the central point CP1 that is arranged in equally spacedly in a circumferential direction respectively with main board portion 21 is on the common circular trace at center.On these 8 rear shield plate junction surfaces 22, as shown in Figure 6, be combined with rear shield plate 23 respectively.The circular metallic plate that this rear shield plate 23 is sealed by gap each other, rear shield plate junction surface 22 that will be adjacent in a circumferential direction from the rear constitutes, and main board portion 21 is sealed from the place ahead with the peristome of rear shield plate 23.
On 8 rear shield plate junction surfaces 22, as shown in Figure 7, being bent to form the central point CP1 that 24,8 blade parts 24 of blade part are arranged in respectively in a circumferential direction equally spacedly with main board portion 21 respectively is on the common circular trace at center.These 8 blade parts 24 form from rear shield plate junction surface 22 forwards vertical give prominence to tabular respectively, and are mutual to identical tilt angle theta inclination towards ground, rear with respect to the direction of rotation of hot blast fan 20.This tiltangle as shown in Figure 5, the angle that refers to blade part 24 and tilt towards the rear with respect to the front end straight line each other of central point CP1 that connects main board portion 21 and blade part 24 is set at " 30 ° ".
At the leading section separately of 8 blade parts 24, as shown in Figure 7, be formed with front protection cover plate junction surface 25.These 8 front protection cover plate junction surfaces 25 form respectively with respect to vertical tabular of blade part 24, are combined with common front protection cover plate 26 respectively on 8 front protection cover plate junction surfaces 25.This front protection cover plate 26 is made of the circular metallic plate of the adjacent vanes portion 24 gap sealing each other in a circumferential direction from the place ahead.
This front protection cover plate 26 forms concentric shape with respect to rear shield plate 23, the outside dimension of the outside dimension of front protection cover plate 26 and rear shield plate 23 is set at identical value mutually, the internal diameter size D1 of front protection cover plate 26 and the outside dimension D2 of front protection cover plate 26 each other such as shown in Figure 8, be set at " D1/D2=0.6 ".The peristome of this front protection cover plate 26 works as being used to suck the suction inlet 27 of air, and under the state of two top tray supports 10 of case 2, the angle pallet 11 on upper strata is relative with the upper end of suction inlet 27 from the place ahead in the angle pallet 11 with the upper strata is arranged on.
Fig. 9 represents the boss ratio " D1/D2 " and the discharge coefficient relation each other of front protection cover plate 26, and the boss ratio " D1/D2 " of the discharge coefficient of hot blast fan 20 and front protection cover plate 26 is big near " 1 " relative strain.That is, in order to improve the air quantity that hot blast fan 20 is discharged, the width dimensions of front protection cover plate 26 is narrower more favourable.This front protection cover plate 26 links blade part 24 each other, and in order to improve the mechanical strength of hot blast fan 20, the width dimensions of front protection cover plate 26 is bigger more favourable.Consider the air quantity and the mechanical strength both sides of hot blast fan 20, the boss ratio " D1/D2 " of this front protection cover plate 26 is set at " 0.6 ".Hot blast fan 20 constitutes as mentioned above like that.
In housing 14, as shown in Figure 4, be fixed with the oven heater 28 that comprises sheathed heater.This oven heater 28 forms four jiaos of frame shapes that surround hot blast fan 20, top portion and following portion and vertical left lateral and the right portion with level.This oven heater 28 is taken in nichrome wire 30 and is formed as shown in figure 10 in metal radiating tube 29, as shown in figure 11, the axial line that is configured to radiating tube 29 is positioned on the centre line C L 1 of fore-and-aft direction separately of 8 blade parts 24.
The outside dimension R1 of this radiating tube 29 (for example 8mm) sets forr a short time than the width dimensions W1 (for example 11mm) of the fore-and-aft direction of the blade part 24 of hot blast fan 20, the mode that radiating tube 29 rearward stretches out with the rear end face separately unlike 8 blade parts 24 and forwards stretches out unlike the front end face separately of 8 blade parts 24 from the footpath direction of hot blast fan 20 be configured in relatively 8 blade parts 24 separately on.That is, the width dimensions W1 of the fore-and-aft direction of blade part 24 and the outside dimension R1 ratio " R1/W1 " each other of radiating tube 29 are set at 8/11.
From the wind of discharging separately of 8 blade parts 24 not forwards and the straight line composition of advancing obliquely of any one party in the rear be blown on this radiating tube 29, the straight line composition of the wind of discharging from hot blast fan 20 is blown on the radiating tube 29 of oven heater 28 and hot blastization.This oven heater 28 is equivalent to heater.
On oven heater 28, as shown in figure 10, the outer peripheral face that is positioned at radiating tube 29 is fixed with fin 31.This fin 31 helically on the outer peripheral face of radiating tube 29 is reeled and radiating tube 29 metallic plate of the same race constitutes, and has a plurality of radiating parts 32.These a plurality of radiating parts 32 are provided with the compartment of terrain mutually along radiating tube 29 respectively and arrange, and form the direction that flows circular of the air of discharging along hot blast fan 20.These a plurality of radiating parts 32 possess the function of the heating area that enlarges radiating tube 29 thus respectively via radiating tube 29 heating.
The outside dimension R2 separately of these a plurality of radiating parts 32 as shown in figure 11, be set greatlyyer than the width dimensions W1 of blade part 24, a plurality of radiating parts 32 rearward stretch out promptly outstanding respectively than the rear end face of blade part 24, forwards stretch out promptly outstanding than the front end face of blade part 24.From the wind that blade part 24 is discharged rearward and the place ahead inclination composition of advancing obliquely respectively be blown on these a plurality of radiating parts 32, the inclination composition of the wind of discharging from blade part 24 is blown on the fin 31 and hot blastization.
At the outer peripheral face of the outer peripheral face of hot blast fan 20 and fin 31 each other, as shown in figure 10, the whole zone that is positioned at the circumferencial direction of hot blast fan 20 is formed with the gap.The outer peripheral face of this hot blast fan 20 refers to the outside dimension (outer peripheral face of the outer peripheral face of=rear shield plate 23, front protection cover plate 26) of the maximum of hot blast fan 20, sets the outer peripheral face of hot blast fan 20 and the outer peripheral face gap size C1 each other of fin 31 to such an extent that minimum of a value is bigger than " 2mm " that be described in detail later.
This fin 31 can bring influence to the static pressure that improves hot blast fan 20, the pressure the when static pressure of hot blast fan 20 refers to hot blast fan 20 resistances (pressure loss) conveying air.Figure 12 represents the air quantity and the static pressure relation each other of hot blast fan 20 under mutually different a plurality of tiltangle.This air quantity is the volume of the air of hot blast fan 20 time per units discharge, and the air quantity of hot blast fan 20 and the size of tiltangle are irrelevant, and static pressure is low more, and the air quantity of hot blast fan 20 is high more.That is, in order to improve the air quantity of hot blast fan 20, the outer peripheral face of preferred hot blast fan 20 and the outer peripheral face gap size C1 each other of fin 31 are bigger.
Radiating tube 29 expands by heat when the operation of oven heater 28, and fin 31 is corresponding with radiating tube 29 expansion phases and near the outer peripheral face of hot blast fan 20.Therefore, each other because of the expansion of radiating tube 29 contacts, C1 is bigger for the preferred gap size for fear of the outer peripheral face of the outer peripheral face of hot blast fan 20 and fin 31.
The inclination composition of the wind that these fin 31 heating hot blast fans 20 are discharged does not contact with fin 31 in order to make the inclination composition with not departing from, and C1 is less for the preferred gap size.Promptly, for the minimum of a value " 2mm " of described gap size C1, be the air quantity that consider to improve hot blast fan 20, avoid fin 31 contact and make the inclination composition of the wind of hot blast fan 20 discharges contact and setting effectively with fin 31 at these 3 with hot blast fan 20.
On the back plate of interior case 2, as shown in Figure 3, Figure 4, the place ahead that is positioned at the suction inlet 27 of hot blast fan 20 is formed with the jut 33 of toroidal.This jut 33 is forwards more outstanding than the rest parts except jut 33 in the back plate of interior case 2, and the diameter dimension of jut 33 is set at the value identical with the internal diameter size D1 of front protection cover plate 26.
On the back plate of interior case 2, be formed with the hot blast air entry 34 that comprises a plurality of through holes.This hot blast air entry 34 is equivalent to air entry, and when making fan electromotor 18 operations under the closed state of door 5, the air in the cooking room 3 sucks in the suction inlet 27 of hot blast fan 20 from hot blast air entry 34.This hot blast air entry 34 is made of interior suction unit 35 and outer suction unit 36, and interior suction unit 35 refers to the part of the inside that is positioned at inner outline IL, and outer suction unit 36 refers to and is positioned at outer contour OL and described inner outline IL part each other.
Outer contour OL is that the outer peripheral face with front protection cover plate 26 projects to the imaginary line on the back plate of cooking room 3, and inner outline IL is that the inner peripheral surface with front protection cover plate 26 projects to the imaginary line on the back plate of cooking room 3.This inner outline IL is consistent with the outer peripheral face of jut 33.Interior suction unit 35 is formed in the jut 33 not on the relative part of the angle pallet 11 on rear and the culinary upper strata of baking oven, and the area of the total of interior suction unit 35 and outer suction unit 36 is set at the identical value of area with the suction inlet 27 of hot blast fan 20.
On the main board portion 21 of hot blast fan 20, as shown in Figure 4, be fixed with decoration element 37.This decoration element 37 is from the interior suction unit 35 relative configurations of rear with hot blast air entry 34, and the width dimensions of the fore-and-aft direction of decoration element 37 is set at decoration element 37 from the outstanding size of the preceding face forward of front protection cover plate 26.That is, the jut 33 of the back plate of cooking room 3 is used to avoid decoration element 37 to contact with the back plate of cooking room 3.
On the back plate of interior case 2, as shown in Figure 3, be formed with a plurality of hot blast exhaust outlets 38 of going up.These a plurality of upward hot blast exhaust outlets 38 are respectively the aggregates of through hole, from radiating tube 29 and fin 31 both sides relative dispose of the place ahead with oven heater 28.
These are a plurality of goes up hot blast exhaust outlets 38 and is configured in the position higher than the angle pallet 11 on the culinary upper strata of baking oven respectively, the hot blast that in housing 14, generates hot blast exhaust outlet 38 exhaust forwards on a plurality of respectively by radiating tube 29 and fin 31 both sides, above the angle on the culinary upper strata of the baking oven pallet 11 from after advance forward and blow on the door 5.This hot blast is advanced in angle pallet 11 gap each other of the angle on the culinary upper strata of baking oven pallet 11 and lower floor in the past backward, sucks in the suction inlet 27 of hot blast fan 20 from hot blast air entry 34.These a plurality of hot blast exhaust outlets 38 of going up are equivalent to exhaust outlet respectively.
On the back plate of interior case 2, as shown in Figure 3, be formed with a plurality of hot blast exhaust outlets 39 down.These a plurality of hot blast exhaust outlets 39 down are respectively the aggregates of through hole, from radiating tube 29 and fin 31 both sides relative dispose of the place ahead with oven heater 28.
These a plurality of down hot blast exhaust outlets 39 are configured in the position lower than the angle pallet 11 of the culinary lower floor of baking oven respectively, by radiating tube 29 and fin 31 both sides and the hot blast that in housing 14, generates respectively from a plurality of hot blast exhaust outlet 39 exhausts forwards down, below the angle of the culinary lower floor of the baking oven pallet 11 from after advance forward and blow on the door 5.This hot blast is advanced in angle pallet 11 gap each other of the angle on the culinary upper strata of baking oven pallet 11 and lower floor in the past backward, sucks in the suction inlet 27 of hot blast fan 20 from hot blast air entry 34.These a plurality of hot blast exhaust outlets 39 down are equivalent to exhaust outlet respectively.
On the back plate of interior case 2, as shown in Figure 3, be formed with left hot blast exhaust outlet 40 and right hot blast exhaust outlet 41 respectively.The aggregate that these left hot blast exhaust outlets 40 and right hot blast exhaust outlet 41 are respectively through holes is from the place ahead and radiating tube 29 and relative configuration of fin 31 both sides.
These left hot blast exhaust outlets 40 and right hot blast exhaust outlet 41 are configured to the angle pallet 11 on the culinary upper strata of baking oven and angle pallet 11 height each other of lower floor respectively, by radiating tube 29 and fin 31 both sides and the hot blast that in housing 14, generates respectively from left hot blast exhaust outlet 40 and the exhaust forwards of right hot blast exhaust outlet 41, below the angle of the culinary lower floor of the baking oven pallet 11 from after advance forward and blow on the door 5.This hot blast is advanced in angle pallet 11 gap each other of the angle on the culinary upper strata of baking oven pallet 11 and lower floor in the past backward, sucks in the suction inlet 27 of hot blast fan 20 from hot blast air entry 34.These left hot blast exhaust outlets 40 and right hot blast exhaust outlet 41 are equivalent to exhaust outlet respectively.
In the back plate gap each other of the back plate of outer container 1 and interior case 2, take in the control circuit that microcomputer is constituted main body.This control circuit has CPU, ROM and RAM, is connected with rotary encoder on control circuit.This rotary encoder has the rotating shaft that points to fore-and-aft direction, and mechanical link has adjustment disk 42 (with reference to Fig. 1) on the rotating shaft of rotary encoder.
This adjustment disk 42 is configured on door 5 the window frame 8, can operate from the place ahead, rotary encoder when rotary manipulation adjustment disk 42 to the pulse signal of control circuit output with the corresponding number of rotation amount of adjustment disk 42.Store a plurality of cooking menus in the ROM of this control circuit in advance, control circuit is selected the corresponding cooking menu of output number with pulse signal from a plurality of cooking menus when being judged as from the rotary encoder output pulse signal.That is, adjustment disk 42 is used for selecting cooking menu.
On control circuit, be connected with LCD 43.This LCD 43 is fixed on the window frame 8 of door 5 as shown in Figure 1, can recognize from the place ahead, and control circuit shows the selection result of cooking menu on LCD 43 when having selected cooking menu.Be connected with the beginning switch that is made of push switch on control circuit, mechanical link has beginning key 44 on the operating portion of beginning switch.This begins key 44 and is installed on door 5 the window frame 8, can operate from the place ahead, and the beginning switch switches electric state by the operation of beginning key 44.
On control circuit, be connected with magnetron 9, barbecue heater, fan electromotor 18 and oven heater 28 as shown in Figure 2 respectively, control circuit when being judged as the electric state that has switched the beginning switch, by with the corresponding content operation of the selection result of cooking menu magnetron 9, barbecue heater, fan electromotor 18 and oven heater 28 in the selection result corresponding parts of cooking menu.Below, the contents processing of the control circuit when having selected cooking menu " hamburger " describes.
Control circuit bring into operation respectively fan electromotor 18 and oven heater 28 and hot blast is circulated in cooking room 3.This fan electromotor 18 begin from operation to through in during the initial heating of predefined time with certain medium speed's continuous service, from finishing during the initial heating to through in middle the period of heating of predefined time with than slow certain of medium speed than the low velocity continuous service, finishing between the period of heating from the centre in pass through the final period of heating of predefined time with the certain fair speed continuous service faster than the medium speed.
On the other hand, oven heater 28 begins to finishing with predefined certain output continuous service the final period of heating from operation.
The time of temperature changes in stove when Figure 13 has represented to select cooking menu " hamburger ".Temperature is the temperature in the cooking room 3 in this stove, in during initial heating in the stove temperature rise with the moderate temperature rate of change, temperature is with the low temperature change rate rising littler than moderate temperature rate of change in the stove between the middle period of heating, and temperature rises with the higher temperature rate of change higher than moderate temperature rate of change in the stove in finally between the period of heating.This centre is used between the period of heating in housing 14 during the store heat, the heat that will be stored in the housing 14 in the centre is between the period of heating between the final period of heating discharges in cooking room 3 without a break, temperature sharply rises in the stove thus, reaches desired value " 350 ℃ " reliably.
According to the foregoing description 1, play following effect.
Use the turbofan of the centrifugal type that has rear shield plate 23 and front protection cover plate 26 respectively and dispose oven heater 28 as hot blast fan 20, so do not blow to effectively on the oven heater 28 with not departing from from the wind of hot blast fan 20 in the mode of surrounding hot blast fan 20.Therefore, the rate of heat exchange at oven heater 28 places improves, so can be in the object time (for example 30 minutes) inside of cooking room 3 be brought up to target temperature (for example 350 ℃).
In addition, the boss ratio with front protection cover plate 26 is set at " 0.6 ".Therefore, flowing of the air at hot blast fan 20 places is good, so quietness improves.Constitute hot blast air entry 34 by interior suction unit 35 and outer suction unit 36, so thereby suppressed because the air-breathing air quantity of the influence hot blast fan 20 that the angle pallet 11 on the culinary upper strata of baking oven overlaps with the part of the suction inlet 27 of hot blast fan 20 descends.
Set the outside dimension R1 of radiating tube 29 littler, dispose radiating tube 29 outstanding from the rear end face and the front end face of blade part 24 than the width dimensions W1 of the fore-and-aft direction of the blade part 24 at rear shield plate junction surface 22.Therefore, the straight line composition of the wind that hot blast fan 20 is discharged is blown on the radiating tube 29 with not departing from, so carry out heat exchange efficiently at radiating tube 29.
In addition, set the outside dimension R2 of fin 31 bigger, dispose fin 31 to such an extent that stretch out than the rear end face and the front end face of blade part 24 respectively than the width dimensions W1 of the fore-and-aft direction of blade part 24.Therefore, the straight line composition of the wind that hot blast fan 20 is discharged is blown on the fin 31 with not departing from, so carry out heat exchange efficiently at fin 31.
A plurality of radiating parts 32 by the direction that flows of the air of discharging along hot blast fan 20 constitute fin 31, so thereby suppressed because the air quantity that joins fin 31 on the radiating tube 29 influence hot blast fan 20 descends.Since constitute decoration element 37 is set on the main board portion 21 of hot blast fan 20, in user's square tube existence of crossing hot blast air entry 34 visual identification hot blast fans 20 in the past when open with door 5 under the inactive state of hot blast fan 20, so the ornamental raising in the cooking room 3 when open under the inactive state of hot blast fan 20 with door 5.And the user can directly recognize by the eyes of oneself and have rotary body at the rear of hot blast air entry 34, so can prevent to insert the behavior and the possible trouble of foreign matter in hot blast air entry 34.
In the foregoing description 1, also can use the turbofan of dual-sucking type as hot blast fan 20.Under the situation of this structure, preferably on the main board portion 21 of hot blast fan 20, form the corresponding peristome of peristome with rear shield plate 23.
In the foregoing description 1, also the boss ratio " D1/D2 " of front protection cover plate 26 can be set at the value different in the scope from " 0.5 " to " 0.7 " with " 0.6 ".
In the foregoing description 1, also the tiltangle of blade part 24 can be set in the scope from " 10 ° " to " 90 ° " and " 30 ° " different value.
In the foregoing description 1, also the width dimensions W1 of the fore-and-aft direction of blade part 24 and the outside dimension R1 ratio " R1/W1 " each other of radiating tube 29 can be set at than values different with " 8/11 " in " 0.7 " big value.
In the foregoing description 1, also the outer peripheral face and the fin 31 gap size C1 each other of hot blast fan 20 can be set at the value different with " 2mm " in " 2mm " above value.
In the foregoing description 1, also the sheet number of blade part 24 can be set at the sheet number different in the following sheet number of " 6 " above " 12 " with " 8 ".
In the foregoing description 1, also can apply the present invention to the special-purpose heating device of the baking oven cooking.
Claims (7)
1. heating device is characterized in that:
Comprise:
Cooking room, its front are as the gateway of gratin and opening has back plate in an opposite side with this gateway;
Door, it can be operated each other at closed state that the gateway of described cooking room is sealed and the open state that the gateway of described cooking room is open;
Housing, it is positioned on the back plate that externally is arranged on described cooking room of described cooking room, forms the fan room of space shape between the back plate of itself and described cooking room;
Air entry, the place ahead that it is positioned at described housing is arranged on the back plate of described cooking room, is used for the air of described cooking room inside is sucked the inside of described housing;
Exhaust outlet, the place ahead that it is positioned at described housing is arranged on the back plate of described cooking room, is used for the air of the inside of described housing is discharged to the inside of described cooking room;
The fan of centrifugal type, it is arranged on the inside of described housing, to a direction rotation air of the inside of described cooking room is attracted and the air of the inside of described housing is discharged to the inside of described cooking room from described exhaust outlet to the inside of described blower-casting from described air entry under the closed state of described door;
Fan electromotor, it makes described fan rotate to a direction; With
Electric heater, it is arranged on the inside of described housing in the mode of surrounding described fan, the air heat that will discharge from described fan in the inside of described housing and hot blastization;
Described fan has:
Main board portion, its by described fan electromotor to a direction rotary manipulation;
The multi-disc blade part, it is set on the described main board portion, tilts towards the rear with respect to the direction of rotation of described main board portion;
The rear shield plate, it covers the described multi-disc blade part each from the rear;
Circular front protection cover plate, it covers the described multi-disc blade part each from the place ahead, have the peristome that is used to suck air.
2. heating device as claimed in claim 1 is characterized in that: described front protection cover plate is set at " internal diameter size/outside dimension " value in from 0.5 to 0.7 the scope.
3. heating device as claimed in claim 1 or 2, it is characterized in that: be arranged on the described air entry on the back plate of described cooking room, by the suction unit of the inside that is positioned at the inner outline that the inner peripheral surface of described front protection cover plate is formed to the back plate projection of described cooking room be positioned at the outer peripheral face of described front protection cover plate is constituted to outer contour and the inner outline outer suction unit each other that the back plate projection of described cooking room forms.
4. heating device as claimed in claim 1 or 2 is characterized in that:
Described heater comprises the sheathed heater of the nichrome wire of the inside that has each the relative radiating tube from the footpath direction of described fan and described multi-disc blade part and insert this radiating tube;
Described radiating tube, set outside dimension littler than each the width dimensions of fore-and-aft direction in the described multi-disc blade part, not the rear end face of each from described multi-disc blade part rearward stretch out and not the front end face of each from described multi-disc blade part forwards stretch out.
5. heating device as claimed in claim 4 is characterized in that:
On described heater, be provided with from the outstanding fin of the outer peripheral face of described radiating tube;
Described fin, set outside dimension bigger than each the width dimensions of fore-and-aft direction in the described multi-disc blade part, the rear end face of each from described multi-disc blade part rearward stretches out and each the front end face from described multi-disc blade part forwards stretches out.
6. heating device as claimed in claim 5 is characterized in that: described fin comprises along a plurality of radiating parts of the direction that flows of the air of described fan discharge.
7. heating device as claimed in claim 1 or 2 is characterized in that:
The decoration element that is arranged on described main board portion, under the running status of described fan electromotor, rotates with described main board portion with comprising the rear that is positioned at described air entry;
Described air entry comprise when under the inactive state at described fan with described door when open, square mesh be looked a plurality of the through holes of the described decoration element of identification in the past.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008164429A JP5242250B2 (en) | 2008-06-24 | 2008-06-24 | Cooker |
| JP164429/2008 | 2008-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101611732A CN101611732A (en) | 2009-12-30 |
| CN101611732B true CN101611732B (en) | 2011-06-01 |
Family
ID=41491773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101508424A Active CN101611732B (en) | 2008-06-24 | 2009-06-23 | Heating cooking device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5242250B2 (en) |
| KR (1) | KR101014043B1 (en) |
| CN (1) | CN101611732B (en) |
| RU (1) | RU2410606C1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4820569B2 (en) | 2005-04-08 | 2011-11-24 | 東レ・ダウコーニング株式会社 | Thermoplastic elastomer composition and glass plate with molding for vehicle |
| JP5623096B2 (en) * | 2010-02-18 | 2014-11-12 | タニコー株式会社 | Heating device |
| CN102188166B (en) * | 2010-03-10 | 2016-03-16 | 乐金电子(天津)电器有限公司 | Roasted tube has the electric oven of radiator |
| CN102232801B (en) * | 2010-05-05 | 2016-01-20 | 乐金电子(天津)电器有限公司 | Electric oven |
| JP2016205737A (en) * | 2015-04-24 | 2016-12-08 | 東芝ホームテクノ株式会社 | Heating cooker |
| CN107019438B (en) * | 2017-05-24 | 2023-09-15 | 广东美的厨房电器制造有限公司 | electric oven |
| CN108354466B (en) * | 2018-04-28 | 2023-12-19 | 广东美的厨房电器制造有限公司 | Cooking device fan and cooking device |
| JP6961038B1 (en) * | 2020-05-12 | 2021-11-05 | 三菱電機株式会社 | Centrifugal fan and rotary electric machine |
| CN112640926B (en) * | 2020-10-12 | 2023-05-09 | 新疆恒远中汇彩印包装股份有限公司 | Pull formula intelligent processing equipment |
| WO2024093427A1 (en) * | 2022-11-03 | 2024-05-10 | 广东美的厨房电器制造有限公司 | Cooking appliance |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559896U (en) * | 1978-07-06 | 1980-01-22 | ||
| JP2679149B2 (en) * | 1988-09-09 | 1997-11-19 | 松下電器産業株式会社 | Heating equipment |
| JPH0979184A (en) * | 1995-09-14 | 1997-03-25 | Matsushita Electric Ind Co Ltd | Motor-driven air blower |
| JP3366265B2 (en) * | 1998-10-05 | 2003-01-14 | 松下精工株式会社 | Centrifugal blower |
| JP2001185344A (en) * | 1999-12-27 | 2001-07-06 | Sanyo Electric Co Ltd | Microwave oven |
| JP3970626B2 (en) * | 2002-02-07 | 2007-09-05 | シャープ株式会社 | Cooker |
| KR20040052003A (en) * | 2002-12-13 | 2004-06-19 | 엘지전자 주식회사 | Microwave oven |
| JP2007064504A (en) * | 2005-08-29 | 2007-03-15 | Toshiba Corp | Heating cooking device |
| KR100738702B1 (en) * | 2005-11-11 | 2007-07-12 | 엘지전자 주식회사 | Centrifugal fan |
-
2008
- 2008-06-24 JP JP2008164429A patent/JP5242250B2/en active Active
-
2009
- 2009-04-30 KR KR1020090038040A patent/KR101014043B1/en not_active IP Right Cessation
- 2009-06-23 RU RU2009124046/03A patent/RU2410606C1/en active
- 2009-06-23 CN CN2009101508424A patent/CN101611732B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2410606C1 (en) | 2011-01-27 |
| JP5242250B2 (en) | 2013-07-24 |
| KR101014043B1 (en) | 2011-02-14 |
| JP2010007878A (en) | 2010-01-14 |
| KR20100002093A (en) | 2010-01-06 |
| CN101611732A (en) | 2009-12-30 |
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Address after: Tokyo, Japan Patentee after: Toshiba Corp. Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: TOSHIBA HOME APPLIANCES Corp. |
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Effective date of registration: 20160822 Address after: Tokyo, Japan Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Effective date of registration: 20160822 Address after: Tokyo, Japan Patentee after: Toshiba Corp. Patentee after: TOSHIBA HOME APPLIANCES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: Toshiba Home Appliances Holdings Corp. Patentee before: TOSHIBA HOME APPLIANCES Corp. |