EP2040003A1 - Kochgerät - Google Patents

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Publication number
EP2040003A1
EP2040003A1 EP07767577A EP07767577A EP2040003A1 EP 2040003 A1 EP2040003 A1 EP 2040003A1 EP 07767577 A EP07767577 A EP 07767577A EP 07767577 A EP07767577 A EP 07767577A EP 2040003 A1 EP2040003 A1 EP 2040003A1
Authority
EP
European Patent Office
Prior art keywords
heat source
chamber
heat
heating
circulating fan
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Withdrawn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
EP07767577A
Other languages
English (en)
French (fr)
Inventor
Takahiko c/o Panasonic Corporation IPROC YAMASAKI
Ikuhiro c/o Panasonic Corporation IPROC INADA
Yasuhisa c/o Panasonic Corporation IPROC MORI
Hiroshi c/o Panasonic Corporation IPROC KAWAI
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.)
Panasonic Corp
Original Assignee
Panasonic 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 JP2006189217A external-priority patent/JP5080757B2/ja
Priority claimed from JP2006189218A external-priority patent/JP2008014620A/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2040003A1 publication Critical patent/EP2040003A1/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Withdrawn legal-status Critical Current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
    • F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated

Definitions

  • the present invention relates to a heating cooking apparatus which heats and cooks a subject to be heated which is placed in a heating chamber by means of hot air supplied from a heat source.
  • a heating cooking apparatus as shown in Fig. 11 has been known (refer to, for example, Patent Document 1).
  • a heating cooking apparatus 100 disclosed in the Patent Document 1 a heating chamber 102 is located inside an apparatus body 101, and a door 104 is disposed openably and closably at an opening 103 for putting food into or taking food out of the heating chamber 102.
  • a hot air chamber 110 is provided, and an electric heater 106 and a hot air circulating fan 107 rotationally driven by a motor 108 are provided in the hot air chamber 110.
  • an upper surface and right and left side surfaces of the heating chamber 102, and a heating chamber side surface of the heating chamber rear wall 105 are subjected to coating, while a hot air chamber 110 side surface of the heating chamber rear wall 105 is not subjected to coating. Accordingly, the electric heater 106 heats air in the hot air chamber 110, the heated hot air is sent into the heating chamber 102 from an air port provided in the heating chamber rear wall 105, and the food placed on a placing base 109 is heated and cooked.
  • the heating cooking apparatus raises the temperature in the heating chamber from the same state as the chamber temperature to a predetermined cooking temperature thereby to heat and cook the food, reduction of rise time is required in order to reduce the heating and cooking time. Further, also from a viewpoint of energy saving, the reduction of heating and cooking time is desired.
  • the present invention which has been made in order to solve the existing problem, has an object to provide a heating cooking apparatus which can reduce heating and cooking time by reducing the time for which temperature in a heating chamber is raised to a desired temperature.
  • a heating cooking apparatus includes a heating chamber which accommodates a subject to be heated therein; and a heat source chamber which is adjacent to the heating chamber through a partition plate located at a back portion of the heating chamber, and accommodates therein a heat source and a circulating fan which circulates heat supplied from the heat source.
  • the heat source is formed in the shape of a plurality of spirals
  • the circulating fan is arranged in the inside of the circumference of the heat source, and the spaced dimension between the heat source and the circulating fan is less than 10mm.
  • the distance between the heat source formed in the spiral shape in order to heat the air in the heat source chamber and the circulating fan is as close as less than 10mm, a heat exchange efficiency improves. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber to a predetermined temperature can be reduced, and the power saving can be realized.
  • the heating cooking apparatus includes the heating chamber which accommodates the subject to be heated therein; and the heat source chamber which is adjacent to the heating chamber through the partition plate located at the back portion of the heating chamber, and accommodates therein the heat source and the circulating fan which circulates heat supplied from the heat source.
  • the heat source is formed in the shape of the plurality of the spirals
  • the circulating fan is arranged in the inside of the circumference of the heat source
  • the heat source and the circulating fan are arranged close to each other, and a plane shape along a rotation axis of the circulating fan expands toward an outer periphery of the circulating fan.
  • the shape of the circulating fan for sending the air in the heat source chamber heated by the heat source into the heating chamber expands toward the outer periphery, the area of the circulating fan increases, so that the heat from the heat source is easily stored in the circulating fan. Accordingly, the heat from the heat source is stored in the circulating fan, and next the heat is radiated by the ventilation operation of the circulating fan, with the result that the circulating fan heats the air in the heat source chamber as a second heat source. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of air in the heat source chamber can be reduced. Further, since the time necessary to raise the temperature is reduced, power saving can be realized.
  • an end in a rising direction of a vane portion of the circulating fan does not protrude from an end portion in a spiral axial direction of the heat source.
  • the vane portion of the circulating fan rotates within an inner range of the spiral heat source, the heat exchange efficiency improves. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heating chamber to the predetermined temperature can be reduced, and the power saving can be realized.
  • the heating cooking apparatus includes the heat source chamber which accommodates the circulating fan therein, wherein a plane area of the heat source chamber along a depth direction of the heating chamber is substantially the same as a plane area of the heating chamber along the depth direction of the heating chamber.
  • the air can be sent from corners of the heating chamber, so that ventilation efficiency improves and the air can be evenly sent all over the heating chamber. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, uniformity of heat distribution in the heating chamber can be realized, the time for raising the temperature of the air in the heat source chamber to the predetermined temperature can be reduced, and the power saving can be realized.
  • the heating cooking apparatus includes the heat source chamber which accommodates the circulating fan therein, wherein the heat source is formed in a spiral shape, the circulating fan is arranged inside the circumference of the heat source, and a fixing member for fixing the heat source onto a depth surface of the heat source chamber has a wall portion which contacts a side surface of the heat source chamber.
  • the fixing member for fixing the heat source formed in a spiral shape onto the heat source chamber has the wall portion which contacts the side surface of the heat source chamber, this wall portion regulates the air circulating direction, so that the hot air can be efficiently supplied into the heating chamber. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heating chamber to the predetermined temperature can be reduced, and power saving can be realized.
  • a heating cooking apparatus includes a heating chamber which is formed by a cylindrical portion and a partition plate, and accommodates a subject to be heated therein; and a heat source chamber which is adjacent to the heating chamber through the partition plate, and accommodates therein a heat source and a circulating fan for circulating heat supplied from the heat source.
  • a side surface on the heat source chamber side of the partition plate is provided with heat storage component.
  • the side surface on the heat source chamber side of the partition plate which forms a boundary between the heat source chamber and the heating chamber is provided with heat storage component, the heat supplied from the heat source is stored in the heat storage component, and next the heat is radiated from the side surface on the heat source chamber side of the partition plate, with the result that the side surface on the heat source chamber side of the partition plate heats the air in the heat source chamber as a second heat source. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber can be reduced. Further, since the time necessary for raising the temperature is reduced, power saving can be realized.
  • a coating film is formed on the side surface on the heat source chamber side, whereby the heat storage component is provided on the side surface on the heat source chamber side.
  • the coating film is formed on the side surface on the heat source chamber side of the partition plate which forms the boundary between the heat source chamber and the heating chamber, the heat from the heat source is stored in the coating film, and next the heat is radiated from the coating film, with the result that the coating film heats the air in the heat source chamber as a second heat source. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber can be reduced. Further, since the time necessary for raising the temperature is reduced, power saving can be also realized.
  • the partition plate is formed of material different from material of right and left wall surfaces of the heating chamber, whereby the heat storage component is provided on the side surface of the heat source chamber side.
  • the partition plate since the material which is different from the material of the right and left sides of the cylindrical portion forming the heating chamber and high in endothermic efficiency, heat storage efficiency, and radiation efficiency is used for the partition plate, the heat from the heat source is stored in the partition plate, and next the heat is radiated from the partition plate, with the result that the partition plate heats the air in the heat source chamber as a second heat source. Therefore, when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber can be reduced. Further, since the time necessary for raising the temperature is reduced, power saving can be also realized.
  • the heat exchange efficiency can be improved. Therefore, it is possible to provide a heating cooking apparatus which has advantages that: when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber to a predetermined temperature can be reduced, and the power saving can be realized.
  • the present invention since the present invention has the component the side surface on the heat source chamber side of the partition plate which forms the boundary between the heat source chamber and the heating chamber is provided with heat storage component, the heat supplied from the heat source is stored in the heat storage component, and next the heat is radiated from the heat storage component, with the result that the heat storage component heats the air in the heat source chamber as the second heat source. Therefore, it is possible to provide a heating cooking apparatus which has advantages that: the time for raising the temperature of the air in the heat source chamber can be reduced; and the power saving can be realized by reducing the time for raising the temperature.
  • FIG. 1 is a diagram showing an internal component of a heating cooking apparatus according to a first embodiment of the present invention
  • Fig. 2 is a front view of a circulating fan and an electric heater
  • Fig. 3 is a perspective view showing an end shape of a vane portion of the circulating fan
  • Fig. 4 is a sectional view showing a positional relation between the circulating fan and the electric heater
  • Fig. 5A is a sectional view in a Va-Va position in Fig. 1
  • Fig. 5B is a sectional view in a Vb-Vb position in Fig. 1
  • FIG. 6A is a front view of a heat source chamber 30, showing a state where the electric heater is fixed in the heat source chamber
  • Fig. 6B is a perspective view of a fixing member
  • Fig. 7A is a table showing data of a general fan and a fan having the shape in the present invention
  • Fig. 7B is a graph for comparing the flowing amount between the fans in Fig. 7A .
  • a heating cooking apparatus 10 is formed by a cylindrical portion 21 and a partition plate 22.
  • the heating cooking apparatus 10 includes a heating chamber 20 which can accommodate a subject to be heated, for example, meat M therein; and a heat source chamber 30 which is adjacent to the heating chamber 20 through the partition plate 22, and accommodates therein an electric heater 31 that is a heat source, and a circulating fan 32 rotationally driven by a motor 33 in order to circulate hot air 11 heated by this electric heater 31.
  • the heating chamber 20 includes a front-opened cubic box-shaped body case 23 which is formed by the cylindrical portion 21 having a rectangular section and the partition plate 22 that is a heating chamber rear wall, and a door 24 which is openably and closably provided for a take-out port, which is a front surface of the body case 23, of the subject to be heated.
  • An inner surface (upper surface and right and left side surfaces) of the cylindrical portion 21 in the heating chamber 20 and a side surface of the heating chamber 20 of the partition plate 22 are subjected to heat-resisting coating.
  • the door 24 is coupled, for example, at its lower end by hinges to a lower edge of the body case 23, thereby to be openable and closable in the up-down direction.
  • the heating chamber 20 and the heat source chamber 30 are separately provided, and they are connected through the partition plate 22.
  • the partition plate 22 may be attached near the rear end portion of the body case 23 to provide the heating chamber 20 and the heat source chamber 30.
  • an intake ventilation hole 22a for sucking air from the heating chamber 20 side to the heat source chamber 30 side is provided; and at the surrounding portion of the partition plate 22, an air flow ventilation hole 22b for sending air from the heat source 30 side to the heating chamber 20 side is provided.
  • Each of the ventilation holes 22a and 22b can be formed as many punch holes. Accordingly, by the circulating fan 32, the air in the heating chamber 20 is sucked from the intake ventilation hole 22a to the heat source chamber 30, and the air in the heat source 30 heated by the electric heater 31 is sent from the air flow ventilation hole 22b to the heating chamber 20.
  • a coating film 25 having thickness of 20 to 30 ⁇ m is formed of material which is good in endothermic efficiency, heat storage efficiency, and radiation efficiency, for example, ceramic-based coating material.
  • This coating film 25 constitutes heat storage component.
  • the heat supplied from the electric heater 31 is stored in the coating film 25 of the partition plate 22 once, and next the heat is radiated from the coating film 25, with the result that the coating film 25 heats the air in the heat source chamber 30 as a second heat source. Therefore, when the temperature of the air in the heat source chamber 30 is raised by the electric heater 31, the temperature rise time can be reduced, and power saving can be also realized because the time necessary to raise the temperature is reduced.
  • the circulating fan 32 is provided with plural sheets (for example, 8 sheets) of vane portions 32a extending from a center portion radially, and the center of the circulating fan 32 is fixed to a rotation shaft 33a of the motor 33.
  • the vane portion 32a of the circulating fan 32 is, as shown in Fig. 3 , formed by a bottom surface 32b parallel to a rotary plane, and a slant surface 32c which slants with respect to the rotary plane. Accordingly, as shown by an arrow in Fig. 1 , when the circulating fan 32 is rotated by the motor 33, the air is moved backward (to the right in Fig.
  • the air in the heating chamber 20 is sucked into the heat source chamber 30 from the intake ventilation hole 22a in the partition plate 22, and the hot air is sent along the inner wall of the heat source chamber 30 from the air flow ventilation hole 22b into the heating chamber 20.
  • the electric heater 31 is formed in a spiral shape outside the circulating fan 32, and has the construction that a spaced dimension d between the electric heater 31 and the circulating fan 32 is d ⁇ 10 mm. Namely, since the distance d between the electric heater 31 which is formed, for example, in the spiral shape in order to heat the air in the heat source chamber 30 and an outermost circumference of the circulating fan 32 is small, heat-exchanging efficiency of sending the hot air heated by the electric heater 31 to the heating chamber 20 can be improved, so that the time for which the temperature in the heating chamber 20 is heated to the desired temperature can be reduced. Further, with this reduction, power saving can be realized.
  • the plane shape on the rotary plane of the circulating fan 32 expands toward the outer periphery.
  • a relation between a width B1 of the end portion and a width B2 of a midway portion is B1 > B2. Since the shape of the circulating fan 32 is thus expanding toward the outer periphery, the area of the vane portion 32a can be made large. Since the heat is easy to be stored in this portion having the large area, the heat from the electric heater 31 is stored in the circulating fan 32. When the heat is radiated from the circulating fan 32, it heats the air in the heat source chamber 30 as a second heat source. Therefore, the time for which the temperature of the air in the heat source chamber 30 is raised can be reduced. Further, since the time necessary to raise the temperature is reduced, the power saving can be realized.
  • the circulating fan 32 is so constructed that an end 32d in a rising direction of the vane portion 32a does not protrude from an end portion 31 a in a spiral axial direction (in the up-direction in Fig. 4 ) of the electric heater 31.
  • the end 32d of the slant surface 32c of the vane portion 32a rising in the spiral axial direction is included within the thickness of the electric heater 31. Accordingly, the circulating fan 32 sends efficiently air to a high-temperature portion around the electric heater 31 thereby not to perform useless ventilation which does not contribute to the heat exchange, and can send efficiently the air heated by the electric heater 31 into the heating chamber 20. Therefore, the time for which the temperature in the heating chamber 20 is heated to the desired temperature can be reduced, and the power saving can be realized.
  • the sectional area A2 of the heat source chamber 30 is approximately the same as the sectional area A1 of the heating chamber 20, the air heated in the heat source chamber 30 can be smoothly sent through the surrounding portion of the heat source chamber 30 to the corners of the heating chamber 20, so that ventilation efficiency improves and the air can be sent all over the heating chamber 20. Therefore, the time for which the temperature in the heating chamber 20 is heated to the desired temperature can be reduced, heat distribution in the heating chamber can be made uniform, and the power saving can be realized.
  • the electric heater 31 is fixed onto a depth surface 30a of the heat source chamber 30 through a fixing member 34.
  • the fixing member 34 is formed by, for example, an insulator, has a base portion 34a for attachment onto the depth surface 30a, and is fixed onto the depth surface 30a by a screw or the like.
  • a plane-shaped wall portion 34b rising erectly is provided, and one end surface 34d of this wall portion 34b comes into contact with the side surfaces of the heat source chamber 30 (a ceiling surface and a bottom surface in Fig. 6A ).
  • a grip portion 34c for gripping the electric heater 31 formed in a spiral shape at a predetermined interval is provided for the other end portion of the wall portion 34b. Accordingly, since the wall portion 34b regulates the direction of air circulation produced by the circulating fan 32, the hot air can be efficiently supplied into the heating chamber. Therefore, when the hot air of which the temperature has been raised by the electric heater 31 in the heat source chamber 30 is sent into the heating chamber 20 by the circulating fan 32 to perform heat-cooking, the time for raising the temperature of the air in the heating chamber 20 to the predetermined temperature can be reduced, and the power saving can be realized.
  • Figs. 7A and 7B show comparison in the amount of air flow Q between the general circulating fan and the circulating fan 32 according to the present invention.
  • the general fan and the fan in the present invention which have dimensions shown in Fig. 7A
  • the comparison in the amount of air flow Q was made.
  • Fig. 7B in case that the circulating fan 32 in the present invention is used, compared with the case where the general circulating fan is used, assuming that the static pressure Hs can be made approximately zero due to air communication between the heating chamber inside and the heat source chamber inside, it is founded that the amount of air flow has increased by 40%.
  • the circulating fan 32 and the electric heater 31 are located close to each other so that the spaced dimension d between the circulating fan 32 and the electric heater 31 formed in a spiral shape outside the circulating fan 32 becomes 1mm ⁇ d ⁇ 10mm. Therefore, it is possible to improve the ventilation efficiency of sending the hot air heated by the electric heater 31 into the heating chamber 20, and it is possible to reduce the time for which the temperature in the heating chamber 20 is heated to the desired temperature. Further, with this reduction, the power saving can be realized.
  • the coating film 25 is formed on the surface on the heat source chamber 30 side of the partition plate 22 which forms the boundary between the heat source chamber 30 and the heating chamber 20. Therefore, the heat supplied from the electric heater 31 is stored in the coating film 25, and next the heat is radiated from the coating film 25, whereby the coating film 25 heats the air in the heat source chamber 30 as the second heat source. Therefore, when the hot air of which the temperature has been raised by the electric heater 31 in the heat source chamber 30 is sent into the heating chamber 20 by the circulating fan 32 to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber 30 can be reduced. Further, since the time necessary to raise the temperature is reduced, the power saving can be realized.
  • this heating cooking apparatus 10B is formed by a cylindrical portion 21 and a partition plate 26.
  • the heating cooking apparatus 10B includes a heating chamber 20 which can accommodate a subject to be heated, for example, meat M therein; and a heat source chamber 30 which is adjacent to the heating chamber 20 through the partition plate 26, and accommodates therein an electric heater 31 that is a heat source, and a circulating fan 32 which circulates heat supplied from this electric heater 31.
  • the partition plate 26 is formed of material different from material of the cylindrical portion 31.
  • the portions common to those in the heating cooking apparatus 10 according to the aforesaid first embodiment are denoted by the same numerals, and the overlapping description is omitted.
  • an intake ventilation hole 22a and an air flow ventilation hole 22b are provided.
  • material which is good in endothermic efficiency, heat storage efficiency, and radiation efficiency can be used, for example, aluminum plating material, a steel plate having ceramic-based coating iron or manganese with thickness of about 25 ⁇ m, or material having coating in which industrial diamonds are included in order to increase thermal conductivity.
  • the operational advantage in the aforesaid first embodiment is obtained.
  • the partition plate 26 which forms a boundary between the heat source chamber 30 and the heating chamber 20 is formed of the material which is different from the material of the cylindrical portion 21 and high in endothermic efficiency, heat storage efficiency, and radiation efficiency, the heat from the electric heater 31 is stored in the partition plate 26, and next the heat is radiated from the partition plate 26, with the result that the partition plate 26 heats the air in the heat source chamber 30 as a second heat source.
  • this heating cooking apparatus 10C is formed by a cylindrical portion 21 and a partition plate 27.
  • the heating cooking apparatus 10C includes a heating chamber 20 which can accommodate a subject to be heated, for example, meat M therein; and a heat source chamber 30 which is adjacent to the heating chamber 20 through the partition plate 27, and accommodates therein an electric heater 31 that is a heat source, and a circulating fan 32 which circulates heat supplied from this electric heater 31.
  • a heating chamber 20 which can accommodate a subject to be heated, for example, meat M therein
  • a heat source chamber 30 which is adjacent to the heating chamber 20 through the partition plate 27, and accommodates therein an electric heater 31 that is a heat source, and a circulating fan 32 which circulates heat supplied from this electric heater 31.
  • rough surface 27a is formed on a side surface on the heat source chamber 30 side of the partition plate 27, rough surface 27a is formed.
  • the portions common to those in the heating cooking apparatus 10 according to the aforesaid first embodiment are denoted by the same numerals, and
  • an intake ventilation hole 22a and an air flow ventilation hole 22b are provided in the partition plate 27.
  • the rough surface 27a formed on the side surface on the heat source chamber 30 side of the partition plate 27 can be provided by, for example, the sandblast processing.
  • the operational advantage in the aforesaid first embodiment is obtained. Further, since the rough surface 27a are provided on the side surface on the heat source chamber 30 side of the partition plate 27 which forms a boundary between the heat source chamber 30 and the heating chamber 20 thereby to increase the surface area of the partition plate 27, endothermic efficiency, heat storage efficiency, and radiation efficiency of the partition plate 27 can be heightened. Accordingly, the heat from the electric heater 31 is stored in the partition plate 27, and next the heat is radiated from the partition plate 27, with the result that the partition plate 27 heats the air in the heat source chamber 30 as a second heat source.
  • this heating cooking apparatus 10D is formed by a cylindrical portion 21 and a partition plate 28.
  • the heating cooking apparatus 10D includes a heating chamber 20 which can accommodate a subject to be heated, for example, meat M therein; and a heat source chamber 30 which is adjacent to the heating chamber 20 through the partition plate 28 and accommodates therein an electric heater 31 that is a heat source, and a circulating fan 32 which circulates heat supplied from this electric heater 31.
  • a metal layer 28a is formed on a side surface on the heat source chamber 30 side of the partition plate 28.
  • the portions common to those in the heating cooking apparatus 10 according to the aforesaid first embodiment are denoted by the same numerals, and the overlapping description is omitted.
  • an intake ventilation hole 22a and an air flow ventilation hole 22b are provided in the partition plate 28.
  • the metal layer 28a can be provided by superimposing and joining another metal plate onto the partition plate 28 by, for example, riveting.
  • both ventilation holes 22a and 22b are provided also for the metal layer 28a in the same positions and in the same shape as the partition plate 28.
  • the operational advantage in the aforesaid first embodiment is obtained.
  • the metal layer 28a is provided on the side surface on the heat source chamber 30 side of the partition plate 28 which forms a boundary between the heat source chamber 30 and the heating chamber 20, endothermic efficiency, heat storage efficiency, and radiation efficiency of the partition plate 28 can be heightened. Accordingly, the heat supplied from the electric heater 31 which is the heat source is stored in the partition plate 28 and the metal layer 28a, and next the heat is radiated from the partition plate 28 and the metal layer 28a, with the result that the partition plate 28 and the metal layer 28a heat the air in the heat source chamber 30 as second heat sources.
  • the heating cooking apparatus according to the present invention is not limited to the aforesaid embodiments, but modification and improvement can be appropriately made.
  • the heating cooking apparatus since the distance between the heat source formed in the spiral shape in order to heat the air in the heat source chamber and the circulating fan is made close, the ventilation efficiency can be improved. Therefore, the heating cooking apparatus has advantages that: when the hot air of which the temperature has been raised by the heat source in the heat source chamber is sent into the heating chamber by the circulating fan to perform heat-cooking, the time for raising the temperature of the air in the heat source chamber to a predetermined temperature can be reduced, and the power saving can be realized. Accordingly, the heating cooking apparatus is useful as a heating cooking apparatus which heats and cooks the subject to be heated that is accommodated into the heating chamber by means of the hot air supplied from the heat source.
  • the heating cooking apparatus since the side surface on the heat source chamber side of the partition plate which forms the boundary between the heat source chamber and the heating chamber is made high in endothermic efficiency, heat storage efficiency, and radiation efficiency, the heat from the heat source is stored in the partition plate and the like, and next the heat is radiated from the partition plate and the like, with the result that the partition plate and the like heat the air in the heat source chamber as the second heat source. Therefore, the present invention has an advantage that it is possible to provide a heating cooking apparatus which has advantages that the time for raising the temperature of the air in the heat source chamber can be reduced, and that the power saving can be realized by reduction of the temperature rise time. Accordingly, the heating cooking apparatus is useful as a heating cooking apparatus which heats and cooks the subject to be heated that is accommodated into the heating chamber by means of the hot air supplied from the heat source.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
EP07767577A 2006-07-10 2007-06-26 Kochgerät Withdrawn EP2040003A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006189217A JP5080757B2 (ja) 2006-07-10 2006-07-10 加熱調理器
JP2006189218A JP2008014620A (ja) 2006-07-10 2006-07-10 加熱調理器
PCT/JP2007/062771 WO2008007538A1 (fr) 2006-07-10 2007-06-26 Appareil de cuisson par chauffage

Publications (1)

Publication Number Publication Date
EP2040003A1 true EP2040003A1 (de) 2009-03-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07767577A Withdrawn EP2040003A1 (de) 2006-07-10 2007-06-26 Kochgerät

Country Status (3)

Country Link
US (1) US20090314276A1 (de)
EP (1) EP2040003A1 (de)
WO (1) WO2008007538A1 (de)

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Publication number Priority date Publication date Assignee Title
DE102008053145A1 (de) * 2008-10-24 2010-04-29 Rational Ag Strömungsleitvorrichtung für ein Gargerät
KR101564505B1 (ko) * 2014-04-03 2015-10-29 엘지전자 주식회사 조리기기
CN106419619A (zh) * 2016-10-11 2017-02-22 广州极效能源科技有限公司 一种用于电烤箱上的聚能风导结构

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