EP1793171A1 - Kochgerät - Google Patents

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Publication number
EP1793171A1
EP1793171A1 EP05728923A EP05728923A EP1793171A1 EP 1793171 A1 EP1793171 A1 EP 1793171A1 EP 05728923 A EP05728923 A EP 05728923A EP 05728923 A EP05728923 A EP 05728923A EP 1793171 A1 EP1793171 A1 EP 1793171A1
Authority
EP
European Patent Office
Prior art keywords
air
flow direction
heating
heating room
direction side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05728923A
Other languages
English (en)
French (fr)
Inventor
Yukishige Shiraichi
Mitsuo Ohuchi
Rika Nozawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2004251753A external-priority patent/JP3863539B2/ja
Priority claimed from JP2004251752A external-priority patent/JP2006071124A/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of EP1793171A1 publication Critical patent/EP1793171A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation

Definitions

  • the present invention generally relates to a heating cooker and, more particularly, to a heating cooker capable of uniformly heating and cooking foodstuffs as objects to be heated.
  • a conventional heating cooker such as a convection oven includes a fan for forcibly circulating hot air within a heating room.
  • the conventional heating cooker circulates the hot air within the heating room with the fan to increase a cooking speed and uniformize temperature distribution within the heating room for improving baking performance.
  • a heating cooker has, depending on a model, an oven cooking function, an electromagnetic-wave heating cooking function, a dielectric-heating cooking function, a steam cooking function or at least two cooking functions selected from these cooking functions.
  • Fig. 16 is a front view illustrating a conventional heating cooker.
  • Fig. 17 is a view illustrating directions of air flows caused by a centrifugal fan within an air blower.
  • Fig. 18 is a view illustrating heating distribution near a surface of a mount plate placed on an upper stage of the conventional heating cooker.
  • Fig. 19 is a view illustrating directions of air flows within a heating room of the conventional heating cooker.
  • a conventional heating cooker 3 is provided with a heat-insulated box body 11, a heating room 12 which is provided in the box body 11 to cook therein an object to be heated, a heat-insulating door 15 which freely opens/closes a front opening of the heating room 12, a heater 13 for generating hot air, an air blower 20, an operation unit 16 by which a user inputs commands, and a controller (not shown) which controls the heater 13 and the air blower 20.
  • the object to be heated is a unit of a matter to be cooked.
  • the heating room 12 has right and left side walls 31, a back wall 32, a top wall 33 and a bottom wall 34.
  • the air blower 20 is provided at a back side of the back wall 32.
  • Supporting portions 19 for attachably/detachably supporting mount plates 40a and 40b are formed on the side walls 31 at upper and lower portions thereof.
  • an inlet 17 and outlets 18a to 18d each of which consists of a plurality of holes are formed.
  • the inlet 17 is placed at the center of the back wall 32.
  • the outlets are constituted by the first outlet 18a, the second outlet 18b, the third outlet 18c and the fourth outlet 18d.
  • the first outlet 18a is placed above the upper mount plate 40a and is formed into a band shape along longer sides of the back wall 32.
  • the second outlet 18b and the fourth outlet 18d are placed at an intermediate position between the upper mount plate 40a and the lower mount plate 40b and in the vicinity of the right and left side walls 31.
  • the second outlet 18b and the fourth outlet 18d are formed from a plurality of holes arranged in a circular shape with a small region.
  • the third outlet 18c is placed below the lower mount plate 40b and is formed into a band shape along the longer sides of the back wall 32.
  • the air blower 20 includes a centrifugal fan 22, a driving motor (not shown) for rotating and driving the centrifugal fan 22 in a direction shown by arrows, and a fan casing 21 which pivotally supports the centrifugal fan 22.
  • An inlet of the centrifugal fan 22 faces the inlet 17.
  • the annular heater 13 such as a sheathed heater is placed around the centrifugal fan 22.
  • the fan casing 21 covers the back side of the back wall 32 to form a space surrounding the centrifugal fan 22 and the heater 13.
  • Fig. 17 when the fan casing 21 is viewed from the front side, D indicates a first corner positioned at an upper left portion in the fan casing 21, E indicates a second corner positioned at an upper right portion in the fan casing 21, F indicates a third corner positioned at a lower right portion in the fan casing 21, and G indicates a fourth corner positioned at a lower left portion in the fan casing 21.
  • the mount plate 40a on which an object to be heated is mounted is placed into the heating room 12.
  • the controller drives and controls the heater 13, the air blower 20 and the like on the basis of the commands input from the operation unit 16, to start heating and cooking of the object to be heated.
  • Air blown from the centrifugal fan 22 is heated by the heater 13 within the fan casing 21 to be hot air.
  • the hot air is blown from the outlets 18a to 18d.
  • the hot air blown from the outlets 18a to 18d flows toward the front face of the heating room 12, impinges to the door 15 to change its flow direction, is concentrated at the center, and then is drawn into the fan casing 21 through the inlet 17 by a drawing force of the air blower 20.
  • a possible reason for the occurrence of such uneven heating distribution is the biased air flows caused by spiral air flows specific to the centrifugal fan 22.
  • the air is blown into the heating room 12 while being biased toward the flow direction side, as shown by the solid-line arrows H in Fig. 19.
  • hot air blown into the heating room 12 from the outlets 18a to 18d causes flows along the rotation direction of the centrifugal fan 22 due to influences of the spiral air flows. Namely, air blown from the outlet at the second corner E is flowed along the side wall 31 in flow direction side due to spiral flows, and thus hot air is concentrated at the side wall 31 in the flow direction side on the upper mount plate 40a. This results in heating unevenness in the object to be heated which is housed within the heating room 12.
  • Patent Literature 1 discloses a heating cooker provided with a wind-direction plate within an air blower for restricting air flows, in order to improve heating unevenness in a rotation direction of a centrifugal fan, which is caused by spiral air flows which are specific to the centrifugal fan.
  • Patent Literature 2 discloses a heating cooker having a high-frequency heating device or a controller placed under a heating room to increase a volume of the heating room in a lateral-width direction. This can increase a dimension of a mount plate in the lateral-width direction, thus enabling selecting a mounting position depending on an object to be heated which is intended to be heated and cooked. This can overcome baking unevenness.
  • the difference between the quantity of air blown from the outlet at the first corner D and the quantity of air blown from the outlet provided at the intermediate position between the first corner D and the second corner E will cause high-temperature portions at the center of the heating room 12.
  • hot air blown from the centrifugal fan 22 is concentrated and compressed at the four corners D to G of the fan casing 21.
  • air blown from the four corners D to G of the fan casing 21 will be blown at a larger velocity than air blown from the outlets provided at the intermediate positions between the four corners D to G. Consequently, for example, hot air blown from the outlet at the first corner D will flow toward the door 15 near the side wall 31 at the opposite side from the flow-destination side on the upper mount plate 40a without abiding at the side of the back wall 32.
  • portions which are not heated or insufficiently-heated portions at the side of the back wall 32 and high-temperature portions at the side of the door 15 on the upper mount plate 40a as shown in Fig. 18.
  • Patent Literature 3 discloses a heating cooker in which an opening area of an outlet is inversely varied in accordance with a quantity of air, along a end portion of the outlet which generates a large quantity of air by the rotation of a centrifugal fan and along a end portion of the outlet which generate a small quantity of air, in order to uniformize a heating temperature within a heating room.
  • Patent Literature 4 discloses a heating cooker including a heater (sheathed heater) which is double-wound around a hot-air fan 18 and also shaped to have at least a single-wound portion even between respective heater end portions to be outwardly drawn, in order to uniformize a heating temperature within a heating room.
  • Patent Literature 1 Japanese Examined Patent Publication No. 7-11256
  • Patent Literature 2 Japanese Unexamined Patent Publication No. 2003-168551
  • Patent Literature 3 Japanese Unexamined Patent Publication No. 63-14016
  • Patent Literature 4 Japanese Unexamined Patent Publication No. 2004-93092
  • Japanese Examined Patent Publication No. 7-11256 improves the bias of blown air caused by spiral air flows which are specific to a centrifugal fan by providing air-direction plates within an air blower.
  • heating unevenness in a direction toward a door can not be alleviated by simply installing the air-direction plates.
  • an object which intercepts natural air flows such as an air-direction plate is installed, this increase the resistance to blown air, thus reducing the quantity of air blown from the outlet.
  • a traveling distance of air proceeding toward the door is reduced in the heating room. This weakens the heating of objects to be heated which are placed apart from the outlets, in comparison with objects to be heated which are placed in the vicinity of the outlets. Consequently, further consideration of the air-direction plates must be made, or otherwise there will still exist the problem of heating unevenness in the direction toward the door.
  • the height-wise dimension is made greater than the lateral-width-wise dimension, and thus end faces of the air blower at the top-wall side and the bottom-wall side are extended in the lateral-width direction.
  • This facilitates spiral air flows at the extended end faces, thus causing the direction of air blown from the outlets to be further oriented along the rotation direction of the centrifugal fan. This makes it difficult to flow air toward the door of the heating room.
  • the outlets are further separated from the outer perimeter of the centrifugal fan, there is the problem of reduction of air blown from the outlets.
  • the opening area of the outlets is varied to adjust the quantity of air blown from the outlets.
  • such a shape can achieve only the adjustment of the quantity of air in the lateral-width-wise direction of the heating room, and can not alleviate the heating unevenness as shown in Fig. 18.
  • a heating cooker includes an air blower for blowing air in a predetermined flow direction, and a heating room having a wall face for housing an object to be heated. Outlets for blowing air sent from the air blower are formed in the wall faces of the heating room. Air-flow intercepting walls for intercepting air flows are formed to be positioned in the flow direction side with respect to the outlets.
  • the air-flow intercepting walls for intercepting air flows are positioned in the flow direction side with respect to the outlets and therefore air is blown from the outlets while impinging on the air-flow intercepting walls. Air blown from the outlets will not be accumulated at the wall face at the flow direction side and thus air blown into the heating room will be uniformly spread, thus preventing occurrence of heating unevenness in the object to be heated.
  • the heating cooker according to the present invention since the air-flow intercepting walls for intercepting air flows are positioned in the flow direction side with respect to the outlets, air is blown into the heating room through the outlets positioned in the opposite side from the flow direction side, and air will not be blown from the flow direction side into the heating room. Consequently, even if air blown from the opposite side from the flow direction side reaches the wall face at the flow direction side within the heating room due to air flows caused by the air blower, air will not be accumulated and air blown into the heating room will be uniformly spread, thus preventing occurrence of heating unevenness in the object to be heated.
  • the air-flow intercepting walls may include air-direction changeable members for changing air flows which are blown from the outlets and the air-direction changeable members are positioned at the end portions of the outlets in the flow direction side.
  • the outlets are formed at the region extending from the end portion of the wall face of the heating room in the opposite side from said flow direction side to the proximity of the middle portion of the wall face.
  • the air blower includes a centrifugal fan.
  • the centrifugal fan is placed to face the middle portion of the wall face of the heating room.
  • the air-direction changeable members are positioned within the region between two parallel lines passing through the most flow direction side point and the most counter flow direction side point on the outer circle defined by the centrifugal fan.
  • the direction of air proceeding toward the flow direction side can be changed by the air-direction changeable members and thus air with a large air velocity can be blown into the heating room. This can increase the traveling distance of air proceeding toward the door of the heating room.
  • the outlets are formed at an upper portion, an intermediate portion and a lower portion of the wall face of the heating room and the outlets formed at the intermediate portion of the wall face of the heating room are placed at the both sides of the centrifugal fan.
  • air can be blown from the upper portion, the intermediate portion and the lower portion of the heating room, thus providing a more uniform temperature within the heating room.
  • the air-direction changeable members are placed such that they extend from near the outer perimeter of the wall face of the heating room toward the center thereof in the proximity of the edge of the wall face of the heating room.
  • the air-direction changeable members are placed such that they are inclined with respect to the flow direction.
  • the end portions of the air-direction changeable members near the outer perimeter of the wall face of the heating room are positioned in the flow direction side and the end portions of the air-direction changeable members near the center of the wall face of the heating room are positioned in the opposite side from the flow direction side.
  • the air-direction changeable members will not steeply guide air flows toward the opposite side from the flow direction side to intercept air. This can prevent extreme concentrations of hot air at the end portion of the outlets in the flow direction side, and a part of the blown air can be flowed to the flow direction side. There will be no occurrence of high-temperature portions near the end portion of the outlets in the flow direction side and also there will be no occurrence of low-temperature portions in the flow direction side, which can alleviate heating unevenness in the object to be heated.
  • the wall face of the heating room includes closed regions including no outlets formed therein and blowoff regions including the outlets formed therein.
  • the closed regions include the air-flow intercepting walls positioned in the flow direction side of the wall face of the heating room and the blowoff regions include the outlets positioned in the opposite side from the flow direction side of the wall face of the heating room.
  • the blowoff regions are biased toward the opposite side from the flow direction side of the wall face of the heating room.
  • the wall face of the heating room is constituted by a first region in the flow direction side and a second region in the opposite side from the flow direction side and the blowoff regions include a part of the first region.
  • plural mount plates on which the object to be heated is mounted are placed within the heating room at upper and lower positions and the blowoff regions are placed at a position above the mount plate placed at the uppermost stage and at a position below the mount plate placed at the lowermost stage.
  • air from the air blower is not blown out from the flow direction side at a position above the mount plate placed at the uppermost stage or a position below the mount plate placed at the lowermost stage.
  • the blowoff regions are formed to have an opening area which gradually decreases toward the opposite side from the flow direction side.
  • the edge is formed to have the aforementioned inclination p at the end portion of the blowoff region in the opposite side, there is no air blown from the portion which could blow air with a largest velocity. Namely, air is blown from more counter-flow direction outlets than the portion which could blow air with a largest velocity. Consequently, air is blown from the outlets with substantially the same blowing velocity, at the end portion in the opposite side, the middle portion and the end portion in the flow direction side. This can equalize the traveling distances of air within the heating room to send uniform air into the heating room, thus alleviating heating unevenness in the object to be heated.
  • the heating room includes a rectangular wall face, and the outlets are formed along the horizontal edge of the rectangular shape defined by the wall face.
  • the present invention enables heating and cooking foodstuffs as objects to be heated, without causing heating unevenness therein.
  • the present invention it is possible to ensure air velocities which can provide sufficient traveling distances of air blown from the outlets in the depth-wise direction and also prevent partial concentration of air in the lateral-width-wise direction of the heating room, with the relationship between the positions of the outlets in the wall face of the heating room and the air-direction changeable members provided in the flow direction side with respect to the positions of the outlets.
  • By creating such air flows within the heating room it is possible to maintain the uniformity of the temperature distribution in the lateral-width-wise direction within the heating room and also prevent the nonuniformity of the temperature distribution in the depth-wise direction within the heating room, thus eliminating heating unevenness in the object to be heated.
  • the outlets are provided in the opposite side from the flow direction side, air is not blown into the heating room from the flow direction side, thus preventing heat accumulation in the vicinity of the wall face in the flow direction side. Consequently, air blown from the outlets provided in the wall face is sent without being biased in the lateral-width-wise direction and in the depth-wise direction within the heating room, and air is evenly impinged on the object to be heated on the mount plate, thus enabling heating cooking without causing heating unevenness.
  • Fig. 1 is a front view illustrating a heating cooker according to one embodiment of the present invention.
  • Fig. 2 is a side cross sectional view illustrating the heating cooker along with the directions of air flows (arrows).
  • Fig. 3 is a view illustrating a centrifugal fan from a back wall side.
  • Fig. 4 is a view illustrating the back wall viewed from a fan casing side.
  • Fig. 5 is a view illustrating directions of air flows within the heating cooker.
  • a heating cooker 1 includes a heat-insulated box body 11 which is opened at the front face, a heating room 12 provided within the box body 11 for housing an object to be heated S, a heater 13 for heating the object to be heated S, an air blower 20 for blowing hot air heated by the heater 13 and a controller (not shown) for controlling the heater 13 and the air blower 20.
  • a heat-insulation door 15 is provided at the front side of the box body 11 such that it can be freely opened and closed, and there is provided an operation unit 16 for inputting commands from a user.
  • the controller which is constituted by microcomputers, controls the air blower 30, the heater 13 or the like on the basis of commands input from the operation unit 16.
  • the heating room 12 has two side walls 31, a back wall 32, a top wall 33 and a bottom wall 34.
  • a fan casing 21 for the air blower 20 is mounted on the back side of the back wall 32.
  • upper and lower supporting portions 19 for supporting mount plates 40a and 40b are formed such that they protrude therefrom at two stages.
  • the mount plates 40a and 40b are constituted by a plate-shaped mounting portion having an area equivalent to the horizontal cross section of the heating room 12 in order to enable mounting the object to be heated S thereon and a flange-shaped edge portion formed around the mounting portion. Since the edge portions of the mount plates 40a and 40b are supported by the supporting portions 19, the mount plates 40a and 40b are housed within the heating room 12.
  • the mount plate to be mounted at an upper portion is referred to as an upper mount plate 40a and the mount plate to be mounted at a lower portion is referred to as a lower mount plate 40b.
  • the air blower 20 is constituted by a centrifugal fan 22 and a motor 23 for rotating and driving the centrifugal fan 22 as shown by arrows in Figs. 1 and 3.
  • the centrifugal fan 22 is rotatably supported to the fan casing 21 and placed such that it faces the back wall 32.
  • the rotation shaft of the centrifugal fan 22 is positioned at the center of the back wall 32.
  • the heater 13 is concentrically placed about the centrifugal fan 22.
  • the fan casing 21 includes two side surfaces 21a, a back surface 21b, a top surface 21c and a bottom surface 21d, as shown in Fig. 3.
  • an inlet 17 for drawing air from the heating room 12 into the fan casing 21 and outlets 18a to 18d for blowing hot air heated by the heater 13 into the heating room 12.
  • the inlet 17 is placed at the center of the back wall 32 and faces the inlet of the centrifugal fan 22.
  • the inlet 17 is formed from plural holes so as to have a circular shape.
  • the outlets 18a to 18d are formed from a plurality of holes which are gathered together and have a diameter of about 5 mm.
  • By forming the outlets 18a to 18d from plural gathered holes with a punched-hole shape there may be provided effects of preventing leakage of electromagnetic waves to the outside of the heating room 12 in the case of concurrently utilizing electromagnetic-wave heating and also effects of preventing a person from suffering from incised wounds and the like, when he inserts his fingertip into the holes in cleaning the inside of the heating room 12.
  • the outlets 18a to 18d are constituted by the upper first outlet 18a, the second outlet 18b and the fourth outlet 18d at intermediate positions and the lower third outlet 18c.
  • the first outlet 18a is placed above the upper mount plate 40a and formed to have a band shape along the longer sides of the back wall 32 which are the horizontal edges thereof.
  • the second outlet 18b is placed at an intermediate position between the upper mount plate 40a and the lower mount plate 40b and in the vicinity of the right side wall 31 when the heating room 12 is viewed from the front side and formed to be a round shape with a small region.
  • the third outlet 18c is placed below the lower mount plate 40b and formed to be a band shape along the longer sides of the back wall 32.
  • the fourth outlet 18d is placed at an intermediate position between the upper mount plate 40a and the lower mount plate 40b and in the vicinity of the left side wall 31 when the heating room 12 is viewed from the front side and are formed to be a round shape with a small region.
  • the second outlet 18b and the fourth outlet 18d are symmetrically placed with respect to the inlet 17 such that they sandwich the inlet 17.
  • the first outlet 18a and the third outlet 18c are formed from plural rows of holes which are evenly spaced apart from one another along the longer sides of the back wall 32 and have substantially a rectangular shape.
  • the first outlet 18a is formed to have an opening area which gradually decreases toward the hot-air-flow direction side. Namely, near the end portion of the first outlet 18a in the flow direction side, the number of vertically-arranged punched holes decreases from three to two and one in the flow direction direction, and therefore the opening area of the first outlet 18a gradually decreases toward the flow direction side. Near the end portion of the first outlet 18a in the flow direction side, the edge thereof defined by the arranged punched holes, in the flow direction side, is inclined along the direction of flow. There is not formed more flow direction outlet than the edge of the first outlet 18a defined by the arranged punched holes in the flow direction side.
  • the flow direction side means the side toward which the centrifugal fan 22 rotates or the downstream side of air flows caused by the centrifugal fan 22
  • the opposite side from the flow direction side means the opposite side from the side toward which the centrifugal fan 22 rotates, or the upstream side of air flows caused by the centrifugal fan 22.
  • the flow direction side corresponds to the right-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the left-half side thereof.
  • the flow direction side corresponds to the left-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the right-half side thereof.
  • the flow direction side corresponds to the lower-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the upper-half side thereof, while on the left of the centrifugal fan 22 the flow direction side corresponds to the upper-half side and the opposite side corresponds to the lower-half side.
  • the end portion of the first blowing openings 18a in the flow direction side is positioned between the vertical straight line passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22 and the vertical straight line passing through the most counter flow direction side point on the outer circle defined by the centrifugal fan 22.
  • the end portion of the first outlet 18a at the opposite side is positioned in the vicinity of the side wall 31 in the opposite side.
  • the end portion of the first outlet 18a in the flow direction side is positioned within the region between the two vertical straight lines L passing through the most flow direction side point and the most counter flow direction side point on the outer circle defined by the centrifugal fan 22. Consequently, there will be no air blown from the flow direction side into the heating room 12 and hot air will not be concentrated at the flow direction side within the heating room 12 more than necessary, thereby preventing heat accumulation in the vicinity of the side wall 31 at the flow direction side.
  • the third outlet 18c is placed at the position which is rotationally displaced by 180 degrees from the first outlet 18a about the center shaft of the centrifugal fan 22, namely the center of the back wall 32, and is formed to have a shape similar to that of the first outlet 18a. Further, the end portion of the third outlet 18c in the flow direction side is positioned between the vertical straight line passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22 and the vertical straight line passing through the most counter flow direction side point on the outer circle defined by the centrifugal fan 22. As shown in Fig.
  • the end portion of the third outlet 18c in the flow direction side is positioned within the region between the two vertical straight lines L passing through the most flow direction side point and the most counter flow direction side point on the outer circle defined by the centrifugal fan 22.
  • the end portion of the third outlet 18c in the opposite side is positioned in the vicinity of the side wall 31 in the opposite side.
  • air-direction changeable members 50a to 50d for changing the directions of air flows, at the end portions of the respective outlets 18a to 18d in the flow direction side.
  • the respective air-direction changeable members 50a to 50d are placed on the back side of the back wall 32, namely within the fan casing 21.
  • the air-direction changeable members are constituted by the first air-direction changeable member 50a, the second air-direction changeable member 50b, the third air-direction changeable member 50c and the fourth air-direction changeable member 50d.
  • Each of the air-direction changeable members 50a to 50d is formed from a metal plate or the like, which is folded at a right angle into an L-shape.
  • the air-direction changeable members 50a to 50d have press-contact portions 51 pressure-bonded to the back wall 32 through adhesive or welding so that the air-direction changeable members 50a to 50d are secured thereto.
  • the guide surfaces 52 of the air-direction changeable members 50a to 50d to which hot air will impinge are positioned such that they are substantially perpendicular to the back wall 32.
  • the arrows shown in Fig. 4 indicate the direction of rotation of the centrifugal fan.
  • the first air-direction changeable member 50a is provided along the hypotenuse connecting the uppermost vertex and the lowermost vertex of the end portion of the first outlet 18a at the flow direction side.
  • the upper side of the first air-direction changeable member 50a is proximal to the top surface 21c within the fan casing 21 and the rear side of the first air-direction changeable member 50a is proximal to the back surface 21b within the fan casing 21.
  • the first air-direction changeable member 50a is inclined with respect to the direction of air flows.
  • the first air-direction changeable member 50a is installed such that the end portion of the first air-direction changeable member 50a near the top surface 21c (the outer end portion) is positioned in the flow direction side and the end portion thereof near the center is positioned in the opposite side.
  • the second air-direction changeable member 50b is provided at the end portion of the second outlet 18b in the flow direction side. Further, the second air-direction changeable member 50b is positioned such that it is substantially parallel with the longer sides of the wall face of heating room 12 and also is substantially perpendicular to the shorter sides of the wall face of the heating room 12.
  • the second air-direction changeable member 50b is proximal to a side surface 21a within the fan casing 21 and also is proximal to the back surface 21b within the fan casing 21.
  • the second air-direction changeable member 50b is formed to have a lateral width greater than the lateral width of the second outlet 18b.
  • the fourth air-direction changeable member 50d has the same shape as that of the second air-direction changeable member 50b and is placed such that the second and fourth wind-direction changing members 50d and 50b are point-symmetry with respect to the center of the centrifugal fan 22.
  • the third air-direction changeable member 50c is provided along the hypotenuse connecting the uppermost vertex and the lowermost vertex of the end portion of the third outlet 18c in the flow direction side.
  • the lower side of the third air-direction changeable member 50c is proximal to the bottom surface 21d within the fan casing 21 and the rear side of the third air-direction changeable member 50c is proximal to the back surface 21b within the fan casing 21.
  • the centrifugal fan 22 creates circumferentially-flowing hot air.
  • the hot air flowing within the fan casing 21 as shown by broken-line arrows B is blown into the heating room 12 through the outlets 18a to 18d, as shown by solid-line arrows A in Fig. 5.
  • solid-line arrows A indicate hot air flows within the heating room 12
  • the broken-line arrows B indicate hot air flows within the air blower 20.
  • the hot air impinged on the first air-direction changeable member 50a is subjected to forces of circumferential flow components generated by the centrifugal fan 22 and is blown into the heating room 12 through the first outlet 18a diagonally forward toward the flow direction side. Namely, hot air is blown from the end portion of the first blowing openings 18a in the flow direction side with a greater velocity than when there is no air-direction changeable member.
  • the hot air flows toward the door 15 of the heating room 12.
  • the hot air blown from the first outlet 18a will not be concentrated at the flow direction side above the upper mount plate 40a. Consequently, air will not be accumulated at the side wall 31 in the flow direction side and hot air blown into the heating room 12 will be uniformly spread, thereby alleviating heating unevenness in the object to be heated S.
  • first air-direction changeable member 50a is inclined with respect to the direction of air flows, hot air flows will not be steeply guided toward the opposite side and thus will not be intercepted. Therefore, extreme concentration of hot air will not occur at the end portion of the first outlet 18a in the flow direction side. Some hot air can be fed to the flow direction side. Hot air blown from the end portion of the first outlet 18a in the flow direction side also flows toward the flow direction side, thus causing flows proceeding toward the side wall 31 along the back wall 32. There will be no occurrence of high-temperature portions near the end portion of the first outlet 18a in the flow direction side and also there will be no occurrence of low-temperature portions in the flow direction side, which can alleviate heating unevenness in the object to be heated.
  • the first air-direction changeable member 50a is provided proximally to the top surface 21c and the back surface 21b in the fan casing 21. Hot air is directed toward the outer perimeter of the fan casing 21 by the centrifugal fan 22, and hot air can be efficiently collected and guided into the heating room 12 by virtue of the existence of the first wind-direction changing member 50a. Furthermore, since the first air-direction changeable member 50a is in intimate contact with the back wall 32, there will no leakage of hot air through between the first air-direction changeable member 50a and the back wall 32. Consequently, hot air can be collected without wasting it, and therefore the quantity of hot air blown from the first outlet 18a can be increased as much as possible.
  • hot air flows capable of traveling sufficient distances throughout a wide region can be created.
  • the hot air flows blown from the third outlet 18c near the bottom surface of the lower mount plate 40b are similar to the aforementioned hot air flows.
  • the second air-direction changeable member 50b intercepts hot air proceeding toward the third corner F.
  • the hot air impinged on the second air-direction changeable member 50b changes its flow direction at substantially a right angle and then is blown through the second outlet 18b toward the door 15.
  • This can provide hot air flows with greater air velocities, which can reach the vicinity of the door 15, in compassion with the case where there is no air-direction changeable member.
  • the hot air flows toward the inlet 17 and thus circulates. Hot air flows caused by hot air blown from the fourth outlet 18d are similar to the aforementioned hot air flows. Consequently, it is possible to ensure sufficient hot air, thus uniformizing the temperature distribution at the intermediate portion between the upper and lower mount plates 40a and 40b within the heating room.
  • Fig. 6 is a view illustrating the outlets in detail, and Figs.
  • FIG. 7(a) to 7(f) are views illustrating the temperature distribution near the surface of the upper mount plate for respective different positions of the first air-direction changeable member 50a, wherein there are shown the results of varying the position of the first air-direction changeable member 50a while the upper and lower mount plates are housed within the heating room and hot air is blown from all the outlets.
  • the arrows shown in Fig. 6 indicate the direction of the rotation of the centrifugal fan 22.
  • E3 indicates a position on the vertical straight line passing through the rotation shaft of the centrifugal fan 22, namely a position on the bisector which evenly divides the back wall 32 into two parts
  • E6 indicates a position in the vicinity of the side wall 31 at the flow direction side.
  • E5 indicates the intermediate position between E3 and F6
  • E1 indicates the intermediate position between the side wall 31 at the opposite side
  • E3 indicates the intermediate position between E1 and F3
  • E4 indicates the intermediate position between E3 and F5.
  • first air-direction changeable member 50a When the first air-direction changeable member 50a is positioned at E5 or E6, hot air can be easily flowed toward the flow direction side within the heating room 12 and the effect of blowing hot air by the effects of the first air-direction changeable member 50a is degraded, as shown in Figs. 7(e) and 7(f). This reduces the traveling distance of hot air flowing toward the door 15. Consequently, high-temperature portions will occur in the flow direction side near the back wall 32 within the heating room 12 while low-temperature portions will occur near the door 15 at the opposite side.
  • the first air-direction changeable member 50a When the first air-direction changeable member 50a is positioned at E2, E3 or E4, it is possible to adequately achieve both the blowing of hot air toward the flow direction side within the heating room 12 and the effect of blowing hot air by the effects of the first air-direction changeable member 50a, as shown in Figs. 7(b), 7(c) and 7(d). Namely, it is possible to provide a preferable temperature distribution within the entire heating room 12. However, when the first air-direction changeable member 50a is positioned at E2 or E4, there are found some bias of hot air and some nonuniformity in the temperature distribution in the lateral-width-wise direction of the heating room 12, near the door 15 within the heating room 12, as shown in Figs. 7(b) and 7(d).
  • the first air-direction changeable member 50a is positioned between the vertical straight line passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22 and the vertical straight line passing through the most counter flow direction side point on the outer circle defined by the centrifugal fan 22, as the case of E3, namely within the region between the two straight vertical lines passing thorough the most flow direction side point and the most counter flow direction side point on the outer circle defined by the centrifugal fan 22, as shown in Fig. 6.
  • the aforementioned embodiment can provide the aforementioned effects without suffering from adverse influences of the height-to-width dimension ratio of the heating room 12.
  • the height-wise length of the heating room 12 is designated as T
  • the lateral-width-wise length thereof is designated as W
  • the heating cooker according to the present embodiment can prominently offer the effect of alleviating heating unevenness along the direction toward the door 15 from the back wall 32 within the heating room 12.
  • P is 0.7 or less
  • the heating cooker according to the present embodiment can offer more prominent effects.
  • hot air blown from the third outlet 18c near the bottom surface of the lower mount plate 40b can provide a temperature distribution similar to the temperature distribution provided by the aforementioned hot air flows.
  • Fig. 9 is a front view illustrating a heating cooker according to another embodiment of the present invention.
  • Fig. 10 is a side cross sectional view illustrating the heating cooker along with the directions of air flows (arrows).
  • Fig. 11 is a view illustrating the directions of air flows within the heating cooker.
  • Fig. 12 is a view illustrating the heating distribution near the surface of the upper mount plate.
  • Arrows shown in Fig. 9 indicate the direction of the rotation of the centrifugal fan 22.
  • the first outlet 18a and the third outlet 18c are formed from plural rows of holes which are evenly spaced apart from one another along the longer sides of the back wall 32 and have substantially a rectangular shape.
  • the rectangular-shaped areas are referred to as blowoff regions and the areas including no hole formed therein at the flow direction side with respect to the blowoff regions are referred to as closed regions.
  • the closed regions include the air-flow intercepting wall including no hole formed therein which is positioned in the flow direction side of the wall face of the heating room 12, while the blowoff regions include the outlets positioned in the opposite side from the flow direction side of the wall face of the heating room 12.
  • the flow direction side means the side toward which the centrifugal fan 22 rotates or the downstream side of air flows caused by the centrifugal fan 22
  • the opposite side from the flow direction side means the opposite side from the side toward which the centrifugal fan 22 rotates, or the upstream side of air flows caused by the centrifugal fan 22.
  • the flow direction side corresponds to the right-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the left-half side thereof.
  • the flow direction side corresponds to the left-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the right-half side thereof.
  • the flow direction side corresponds to the lower-half side of the heating room 12 when the heating room 12 is viewed from the front side and the opposite side corresponds to the upper-half side thereof, while on the left of the centrifugal fan 22 the flow direction side corresponds to the upper-half side and the opposite side corresponds to the lower-half side.
  • the first outlet 18a is formed to have an opening area which gradually decreases toward the opposite side. Namely, near the end portion of the first outlet 18a in the opposite side from the flow direction side, the number of vertically-arranged punched holes decreases from three to two and one in the counter-flow direction direction, and therefore the opening area of the first outlet 18a gradually decreases toward the opposite side from the flow direction side. Near the end portion of the first outlet 18a in the opposite side from the flow direction side, the edge thereof defined by the arranged punched holes, at the opposite side from the flow direction side, is inclined along the direction of flow.
  • a triangular closed region such as a right-triangular closed region above the hypotenuse connecting the uppermost punched hole and the lowermost punched hole at the end portion of the first outlet 18a in the opposite side from the flow direction side. There is formed no outlet in this triangular closed region.
  • the end portion of the first outlet 18a in the flow direction side is positioned beyond the bisector which evenly divides the back wall 32 into the flow direction region and the opposite region, but within an area including a portion of the flow direction region. More specifically, the end portion of the first outlet 18a in the flow direction side is positioned in the flow direction side with respect to the bisector of the back wall 32, but not beyond the vertical straight line L passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22. Consequently, as shown in Fig. 11, there will be no air blown into the heating room 12 from the flow direction side and thus hot air will not be concentrated at the flow direction side within the heating room 12 more than necessary, thereby preventing heat accumulation in the vicinity of the side wall 31 at the flow direction side.
  • the second outlet 18b and the fourth outlet 18d are formed from a plurality of holes placed on the right and left of the inlet 17 and are formed to have a circular shape with a small region.
  • the third outlet 18c is placed at the position which is rotationally displaced by 180 degrees from the first outlet 18a about the center shaft of the centrifugal fan 22, namely the center of the back wall 32.
  • the third outlet 18c is formed to have a shape similar to that of the first outlet 18a.
  • the end portion of the third outlet 18c in the opposite side is formed to have an opening area which gradually decreases toward the opposite side. Namely, near the end portion of the third outlet 18c in the opposite side from the flow direction side, the number of vertically-arranged punched holes decreases from three to two and one in the counter-flow direction direction, and therefore the opening area of the first outlet 18a gradually decreases toward the opposite side from the flow direction side.
  • the edge thereof defined by the arranged punched holes, at the opposite side from the flow direction side is inclined along the direction of flow.
  • a triangular closed region such as a right-triangular closed region below the hypotenuse connecting the uppermost punched hole and the lowermost punched hole at the end portion of the third outlet 18c in the opposite side from the flow direction side.
  • no outlet in this triangular closed region As shown in Fig.
  • the end portion of the third outlet 18c in the flow direction side is positioned in the flow direction side with respect to the bisector of the back wall 32, but not beyond the vertical straight line L passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22.
  • the triangular closed region formed in the opposite side from the flow direction side intercept hot air flows directed into the heating room 12 at the first corner D of the fan casing 21. This reduces the quantity of hot air blown into the heating room 12 at the portion.
  • the hot air which has not been blown out therefrom will be blown out from the region of the first outlet 18a which extends from the middle portion thereof to the end portion in the flow direction side. Consequently, substantially the same quantity of hot air will be blown from the first outlet 18a, at the end portion in the opposite side, the middle portion and the end portion in the flow direction side.
  • the end portion of the first outlet 18a in the flow direction side is positioned beyond the bisector which evenly divides the back wall 32 into the flow direction region and the opposite region, but within an area including a portion of the flow direction region. Namely, the end portion of the first outlet 18a in the flow direction side is spaced apart from the end portion of the back wall 32 in the flow direction side.
  • the closed region includes the air-flow intercepting wall including no hole formed therein which is positioned in the flow direction side in the back wall 32 of the heating room 12, while the blowoff region includes the outlets positioned in the opposite side from the flow direction side in the back wall 32 of the heating room 12. This can reduce the quantity of hot air flowing in the directions as shown in Fig.
  • the hot air blown from the first outlet 18a is directed to the flow direction side by the spiral flows generated by the centrifugal fan 22, there will be no occurrence of insufficient heating in the right side portion of the upper mount plate 40a.
  • hot air blown from the third outlet 18c near the bottom surface side of the lower mount plate 40b causes a heating distribution similar to that caused by the aforementioned hot air flows.
  • Fig. 12 when heating cooking is performed with the heating cooker 2 configured as described above, hot air is evenly blown from the outlets 18a to 18d and there will be provided a uniform heating distribution as shown in Fig. 12.
  • the objects to be heated S on the mount plates 40a and 40b are, for example, flat-shaped cake dough which are entirely spread over the mounting portions of the mount plates 40a and 40b, heating unevenness can be entirely alleviated, and high-temperature portions can be created uniformly in the lateral-width-wise direction at the middle portions of the mount plates 40a and 40b, which can alleviate the apparent unnaturalness of the baked color due to heating, thereby enabling proper heating cooking.
  • Fig. 13 is a view illustrating the outlets in detail
  • Figs. 14(a) to 14(e) there will be described the heating distribution near the surface of the upper mount plate 40a when the position of the end portion of the first outlet 18a in the flow direction side is varied.
  • Fig. 13 is a view illustrating the outlets in detail
  • Figs. 14(a) to 14(e) there will be described the heating distribution near the surface of the upper mount plate 40a when the position of the end portion of the first outlet 18a in the flow direction side is varied.
  • FIG. 14(a) to 14(e) are views illustrating the heating distributions at the surface of the object to be heated S placed on the surface of the upper mount plate, for respective different positions of the end portion of the first outlet 18a in the flow direction side, wherein there are shown the results of varying the position of the end portion of the first outlet 18a in the flow direction side while the upper and lower mount plates are housed within the heating room and hot air is blown from all the outlets.
  • the arrows shown in Fig. 13 indicate the direction of the rotation of the centrifugal fan 22.
  • E1 in Fig. 13 indicates a position on the vertical straight line passing through the rotation shaft of the centrifugal fan 22, namely a position on the bisector which evenly divides the back wall 32 into two parts
  • E5 indicates a position in the vicinity of the side wall 31 at the flow direction side.
  • E2, E3 and E4 indicate positions on respective lines which evenly divide the region between E1 and E5 into four parts.
  • the end portion of the first outlet 18a in the flow direction side exist at the flow direction side with respect to the bisector of the back wall 32, but not beyond the vertical straight line L passing through the most flow direction side point on the outer circle defined by the centrifugal fan 22.
  • the edge thereof defined by the arranged punched holes, at the opposite side from the flow direction side is inclined along the direction of flow.
  • a triangular closed region such as a right-triangular closed region above the hypotenuse connecting the uppermost punched hole and the lowermost punched hole at the end portion of the first outlet 18a in the opposite side from the flow direction side.
  • the height-wise length of the heating room 12 is designated as T
  • the lateral-width-wise length thereof is designated as W
  • the height-wise length of the hypotenuse of the right triangle is designated as t
  • the lateral-width-wise length is designated as w
  • the height-wise dimension of the fan casing 21 is smaller than the lateral-width-wise dimension. Therefore, the quantity of hot air blown from the centrifugal fan 22 to the shorter height-wise edge of the fan casing 21 will be smaller than the quantity of air blown to the longer lateral-width-wise edge of the fan casing 21. Consequently, there will be smaller concentrations of hot air at the first corner D and the third corner F which exist in the opposite side of the longer lateral-width-wise edges than those at the second corner E and the fourth corner G which exist in the opposite side of the shorter height-wise edges. Thus, a smaller quantity of hot air will be blown from the opposite side of the outlet.
  • Hot air blown from the third outlet 18c near at the bottom surface side of the lower mount plate 40b causes a heating distribution similar to that caused by the aforementioned hot air flows.
  • the present invention is not limited to the aforementioned embodiments and variations and modifications may be made thereto without departing from the scope of the present invention.
  • the present invention can be applied to various types of heating cooker equipped with an axial fan or a turbo fan, etc., as the air blower, instead of a centrifugal fan, to achieve similar effects to the aforementioned effects.
  • an air blower constituted by a fan casing, a heater and a centrifugal fan, within the heating room.
  • the air blower is placed within the heating room, and therefore the wall faces of the fan casing constitute a portion of the wall faces of the heating room. Therefore, the outlets are formed in the wall faces of the heating room, namely in the wall faces of the fan casing.
  • outlets are not limited to be punched hole shapes. Also, instead of providing outlets in the back wall, it is possible to provide blowing openings in the side walls. In such a case, the positions of the outlets must be varied in accordance with the directions of blown air. Also, air-direction changeable members may be curved into a spherical shape.
  • the position of the centrifugal fan is not limited to the center of the back wall. It is possible to guide hot wind from the centrifugal fan toward the blowing openings by using the flow path such as a pipe, a tube or the like.
  • the present invention is applicable to various heating cookers having the oven cooking function, the electromagnetic-wave heating cooking function, the dielectric heating cooking function, the steam cooking function or at least two cooking functions selected from these cooking functions.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Ovens (AREA)
EP05728923A 2004-08-31 2005-04-11 Kochgerät Withdrawn EP1793171A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004251753A JP3863539B2 (ja) 2004-08-31 2004-08-31 加熱調理器
JP2004251752A JP2006071124A (ja) 2004-08-31 2004-08-31 加熱調理器
PCT/JP2005/007023 WO2006025133A1 (ja) 2004-08-31 2005-04-11 加熱調理器

Publications (1)

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EP1793171A1 true EP1793171A1 (de) 2007-06-06

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EP (1) EP1793171A1 (de)
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WO (1) WO2006025133A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1970635A3 (de) * 2008-06-26 2009-02-18 V-Zug AG Heissluft-Backofen mit Umlenkblechen
WO2009074423A2 (de) * 2007-12-12 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
EP2072902A1 (de) * 2007-12-19 2009-06-24 BSH Bosch und Siemens Hausgeräte GmbH Heißluft- oder Umluftofen
DE102007061286A1 (de) 2007-12-19 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
WO2008148675A3 (de) * 2007-06-05 2009-11-05 BSH Bosch und Siemens Hausgeräte GmbH Backofen
DE102009026645A1 (de) * 2009-06-02 2010-12-30 BSH Bosch und Siemens Hausgeräte GmbH Hausgerätvorrichtung
WO2011047944A1 (de) * 2009-10-19 2011-04-28 BSH Bosch und Siemens Hausgeräte GmbH Filterelement für einen ofen
ES2405406A2 (es) * 2010-12-16 2013-05-31 BSH Electrodomésticos España S.A. Mufla para un aparato de cocción, aparato de cocción con una mufla correspondiente, y procedimiento para ejecutar un funcionamiento de pirólisis de un aparato de cocción
EP2003401A3 (de) * 2007-06-15 2017-11-29 BSH Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
EP2527745A4 (de) * 2010-01-18 2017-12-13 Panasonic Corporation Heizvorrichtung
CN108245038A (zh) * 2016-12-28 2018-07-06 浙江绍兴苏泊尔生活电器有限公司 上盖组件及具有其的空气炸锅
US11523707B2 (en) 2015-09-10 2022-12-13 Brava Home, Inc. Sequential broiling
US11828658B2 (en) 2015-09-10 2023-11-28 Brava Home, Inc. In-oven camera and computer vision systems and methods

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11156366B2 (en) 2015-09-10 2021-10-26 Brava Home, Inc. Dynamic heat adjustment of a spectral power distribution configurable cooking instrument
US10064244B2 (en) 2015-09-10 2018-08-28 Brava Home, Inc. Variable peak wavelength cooking instrument with support tray
US10760794B2 (en) * 2015-09-10 2020-09-01 Brava Home, Inc. In-oven camera
CN109792802B (zh) * 2016-08-02 2021-08-03 布拉瓦家居公司 带支撑托盘的可变峰值波长烹饪器具
US10223933B1 (en) 2017-08-09 2019-03-05 Brava Home, Inc. Multizone cooking utilizing a spectral-configurable cooking instrument
EP3665419A4 (de) 2017-08-11 2021-05-05 Brava Home, Inc. Konfigurierbare kochsysteme und -verfahren
US11206949B1 (en) 2017-11-15 2021-12-28 Brava Home, Inc. High power density toaster
US11422037B2 (en) 2018-03-15 2022-08-23 Brava Home, Inc. Temperature probe systems and methods
US10502430B1 (en) 2018-10-10 2019-12-10 Brava Home, Inc. Particulates detection in a cooking instrument
CN109338078A (zh) * 2018-11-01 2019-02-15 张家港嘉园钢铁制品有限公司 一种用于钢管的高能效光亮退火炉

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605283Y2 (ja) * 1980-11-20 1985-02-19 三洋電機株式会社 熱風式ガスオ−ブン
JPS5918322A (ja) * 1982-07-22 1984-01-30 Matsushita Electric Ind Co Ltd 加熱調理器
JPH07111256B2 (ja) * 1986-05-15 1995-11-29 株式会社東芝 熱風循環式調理器
JPS6314016A (ja) * 1986-06-28 1988-01-21 Toshiba Corp 熱風循環式調理器
JPH01169701U (de) * 1988-05-20 1989-11-30
JPH0217323A (ja) * 1988-07-04 1990-01-22 Sanyo Electric Co Ltd 調理器
JPH03107610U (de) * 1990-02-15 1991-11-06
EP0695915A1 (de) * 1994-08-06 1996-02-07 Whirlpool Europe B.V. Ofen mit verbesserter Luftumwälzung
US6615819B1 (en) * 2000-03-10 2003-09-09 General Electric Company Convection oven
JP2004093092A (ja) * 2002-09-04 2004-03-25 Toshiba Corp 加熱調理器
JP4016336B2 (ja) * 2003-04-15 2007-12-05 三菱電機株式会社 加熱調理装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006025133A1 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008148675A3 (de) * 2007-06-05 2009-11-05 BSH Bosch und Siemens Hausgeräte GmbH Backofen
EP2003401A3 (de) * 2007-06-15 2017-11-29 BSH Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
WO2009074423A2 (de) * 2007-12-12 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
WO2009074423A3 (de) * 2007-12-12 2010-02-18 BSH Bosch und Siemens Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
EP2072902A1 (de) * 2007-12-19 2009-06-24 BSH Bosch und Siemens Hausgeräte GmbH Heißluft- oder Umluftofen
DE102007061286A1 (de) 2007-12-19 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Gargerätegebläsevorrichtungseinheit
EP1970635A3 (de) * 2008-06-26 2009-02-18 V-Zug AG Heissluft-Backofen mit Umlenkblechen
DE102009026645B4 (de) * 2009-06-02 2015-03-12 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE102009026645A1 (de) * 2009-06-02 2010-12-30 BSH Bosch und Siemens Hausgeräte GmbH Hausgerätvorrichtung
WO2011047944A1 (de) * 2009-10-19 2011-04-28 BSH Bosch und Siemens Hausgeräte GmbH Filterelement für einen ofen
EP2527745A4 (de) * 2010-01-18 2017-12-13 Panasonic Corporation Heizvorrichtung
ES2405406R1 (es) * 2010-12-16 2013-07-18 Bsh Electrodomesticos Espana Mufla para un aparato de cocción, aparato de cocción con una mufla correspondiente, y procedimiento para ejecutar un funcionamiento de pirólisis de un aparato de cocción
ES2405406A2 (es) * 2010-12-16 2013-05-31 BSH Electrodomésticos España S.A. Mufla para un aparato de cocción, aparato de cocción con una mufla correspondiente, y procedimiento para ejecutar un funcionamiento de pirólisis de un aparato de cocción
US11523707B2 (en) 2015-09-10 2022-12-13 Brava Home, Inc. Sequential broiling
US11828658B2 (en) 2015-09-10 2023-11-28 Brava Home, Inc. In-oven camera and computer vision systems and methods
CN108245038A (zh) * 2016-12-28 2018-07-06 浙江绍兴苏泊尔生活电器有限公司 上盖组件及具有其的空气炸锅
CN108245038B (zh) * 2016-12-28 2021-03-19 浙江绍兴苏泊尔生活电器有限公司 上盖组件及具有其的空气炸锅

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